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->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_mempool_alloc0 (class->image->mempool, 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 change 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);
1088 if (!field_class || !field_class->blittable)
1093 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1094 class->enum_basetype = field->type;
1095 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
1096 blittable = class->element_class->blittable;
1099 /* The def_value of fields is compute lazily during vtable creation */
1102 if (class == mono_defaults.string_class)
1105 class->blittable = blittable;
1107 if (class->enumtype && !class->enum_basetype) {
1108 if (!((strcmp (class->name, "Enum") == 0) && (strcmp (class->name_space, "System") == 0)))
1111 if (explicit_size && real_size) {
1112 class->instance_size = MAX (real_size, class->instance_size);
1115 if (class->exception_type)
1117 mono_class_layout_fields (class);
1121 * mono_class_setup_fields_locking:
1122 * @class: The class to initialize
1124 * Initializes the class->fields array of fields.
1125 * Aquires the loader lock.
1128 mono_class_setup_fields_locking (MonoClass *class)
1130 mono_loader_lock ();
1131 mono_class_setup_fields (class);
1132 mono_loader_unlock ();
1136 * mono_class_has_references:
1138 * Returns whenever @klass->has_references is set, initializing it if needed.
1139 * Aquires the loader lock.
1142 mono_class_has_references (MonoClass *klass)
1144 if (klass->init_pending) {
1145 /* Be conservative */
1148 mono_class_init (klass);
1150 return klass->has_references;
1154 /* useful until we keep track of gc-references in corlib etc. */
1156 #define IS_GC_REFERENCE(t) FALSE
1158 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1162 * mono_type_get_basic_type_from_generic:
1165 * Returns a closed type corresponding to the possibly open type
1169 mono_type_get_basic_type_from_generic (MonoType *type)
1171 /* When we do generic sharing we let type variables stand for reference types. */
1172 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1173 return &mono_defaults.object_class->byval_arg;
1178 * mono_class_layout_fields:
1181 * Compute the placement of fields inside an object or struct, according to
1182 * the layout rules and set the following fields in @class:
1183 * - has_references (if the class contains instance references firled or structs that contain references)
1184 * - has_static_refs (same, but for static fields)
1185 * - instance_size (size of the object in memory)
1186 * - class_size (size needed for the static fields)
1187 * - size_inited (flag set when the instance_size is set)
1189 * LOCKING: this is supposed to be called with the loader lock held.
1192 mono_class_layout_fields (MonoClass *class)
1195 const int top = class->field.count;
1196 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1197 guint32 pass, passes, real_size;
1198 gboolean gc_aware_layout = FALSE;
1199 MonoClassField *field;
1202 * When we do generic sharing we need to have layout
1203 * information for open generic classes (either with a generic
1204 * context containing type variables or with a generic
1205 * container), so we don't return in that case anymore.
1209 * Enable GC aware auto layout: in this mode, reference
1210 * fields are grouped together inside objects, increasing collector
1212 * Requires that all classes whose layout is known to native code be annotated
1213 * with [StructLayout (LayoutKind.Sequential)]
1214 * Value types have gc_aware_layout disabled by default, as per
1215 * what the default is for other runtimes.
1217 /* corlib is missing [StructLayout] directives in many places */
1218 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1219 if (class->image != mono_defaults.corlib &&
1220 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1221 gc_aware_layout = TRUE;
1222 /* from System.dll, used in metadata/process.h */
1223 if (strcmp (class->name, "ProcessStartInfo") == 0)
1224 gc_aware_layout = FALSE;
1227 /* Compute klass->has_references */
1229 * Process non-static fields first, since static fields might recursively
1230 * refer to the class itself.
1232 for (i = 0; i < top; i++) {
1235 field = &class->fields [i];
1237 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1238 ftype = mono_type_get_underlying_type (field->type);
1239 ftype = mono_type_get_basic_type_from_generic (ftype);
1240 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1241 class->has_references = TRUE;
1245 for (i = 0; i < top; i++) {
1248 field = &class->fields [i];
1250 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1251 ftype = mono_type_get_underlying_type (field->type);
1252 ftype = mono_type_get_basic_type_from_generic (ftype);
1253 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1254 class->has_static_refs = TRUE;
1258 for (i = 0; i < top; i++) {
1261 field = &class->fields [i];
1263 ftype = mono_type_get_underlying_type (field->type);
1264 ftype = mono_type_get_basic_type_from_generic (ftype);
1265 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1266 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1267 class->has_static_refs = TRUE;
1269 class->has_references = TRUE;
1274 * Compute field layout and total size (not considering static fields)
1278 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1279 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1281 if (gc_aware_layout)
1286 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1290 real_size = class->parent->instance_size;
1292 real_size = sizeof (MonoObject);
1294 for (pass = 0; pass < passes; ++pass) {
1295 for (i = 0; i < top; i++){
1300 field = &class->fields [i];
1302 if (mono_field_is_deleted (field))
1304 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1307 ftype = mono_type_get_underlying_type (field->type);
1308 ftype = mono_type_get_basic_type_from_generic (ftype);
1309 if (gc_aware_layout) {
1310 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1319 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1320 (strcmp (field->name, "$PRIVATE$") == 0)) {
1321 /* This field is a hack inserted by MCS to empty structures */
1325 size = mono_type_size (field->type, &align);
1327 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1328 align = class->packing_size ? MIN (class->packing_size, align): align;
1329 /* if the field has managed references, we need to force-align it
1332 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1333 align = MAX (align, sizeof (gpointer));
1335 class->min_align = MAX (align, class->min_align);
1336 field->offset = real_size;
1337 field->offset += align - 1;
1338 field->offset &= ~(align - 1);
1339 real_size = field->offset + size;
1342 class->instance_size = MAX (real_size, class->instance_size);
1344 if (class->instance_size & (class->min_align - 1)) {
1345 class->instance_size += class->min_align - 1;
1346 class->instance_size &= ~(class->min_align - 1);
1350 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1352 for (i = 0; i < top; i++) {
1357 field = &class->fields [i];
1360 * There must be info about all the fields in a type if it
1361 * uses explicit layout.
1364 if (mono_field_is_deleted (field))
1366 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1369 size = mono_type_size (field->type, &align);
1370 class->min_align = MAX (align, class->min_align);
1373 * When we get here, field->offset is already set by the
1374 * loader (for either runtime fields or fields loaded from metadata).
1375 * The offset is from the start of the object: this works for both
1376 * classes and valuetypes.
1378 field->offset += sizeof (MonoObject);
1379 ftype = mono_type_get_underlying_type (field->type);
1380 ftype = mono_type_get_basic_type_from_generic (ftype);
1381 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1382 if (field->offset % sizeof (gpointer)) {
1383 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1390 real_size = MAX (real_size, size + field->offset);
1392 class->instance_size = MAX (real_size, class->instance_size);
1396 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1398 * For small structs, set min_align to at least the struct size to improve
1399 * performance, and since the JIT memset/memcpy code assumes this and generates
1400 * unaligned accesses otherwise. See #78990 for a testcase.
1402 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1403 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1406 class->size_inited = 1;
1409 * Compute static field layout and size
1411 for (i = 0; i < top; i++){
1415 field = &class->fields [i];
1417 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1419 if (mono_field_is_deleted (field))
1422 size = mono_type_size (field->type, &align);
1423 field->offset = class->sizes.class_size;
1424 field->offset += align - 1;
1425 field->offset &= ~(align - 1);
1426 class->sizes.class_size = field->offset + size;
1431 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1435 method = (MonoMethod *) mono_mempool_alloc0 (class->image->mempool, sizeof (MonoMethodPInvoke));
1436 method->klass = class;
1437 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1438 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1439 method->signature = sig;
1440 method->name = name;
1443 if (name [0] == '.') {
1444 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1446 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1452 * mono_class_setup_methods:
1455 * Initializes the 'methods' array in the klass.
1456 * Calling this method should be avoided if possible since it allocates a lot
1457 * of long-living MonoMethod structures.
1458 * Methods belonging to an interface are assigned a sequential slot starting
1462 mono_class_setup_methods (MonoClass *class)
1465 MonoMethod **methods;
1470 mono_loader_lock ();
1472 if (class->methods) {
1473 mono_loader_unlock ();
1477 if (class->generic_class) {
1478 MonoClass *gklass = class->generic_class->container_class;
1480 mono_class_init (gklass);
1481 mono_class_setup_methods (gklass);
1483 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1484 class->method.count = gklass->method.count;
1485 methods = g_new0 (MonoMethod *, class->method.count + 1);
1487 for (i = 0; i < class->method.count; i++) {
1488 methods [i] = mono_class_inflate_generic_method_full (
1489 gklass->methods [i], class, mono_class_get_context (class));
1491 } else if (class->rank) {
1492 MonoMethod *amethod;
1493 MonoMethodSignature *sig;
1494 int count_generic = 0, first_generic = 0;
1497 class->method.count = 3 + (class->rank > 1? 2: 1);
1499 if (class->interface_count) {
1500 count_generic = generic_array_methods (class);
1501 first_generic = class->method.count;
1502 class->method.count += class->interface_count * count_generic;
1505 methods = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoMethod*) * class->method.count);
1507 sig = mono_metadata_signature_alloc (class->image, class->rank);
1508 sig->ret = &mono_defaults.void_class->byval_arg;
1509 sig->pinvoke = TRUE;
1510 sig->hasthis = TRUE;
1511 for (i = 0; i < class->rank; ++i)
1512 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1514 amethod = create_array_method (class, ".ctor", sig);
1515 methods [method_num++] = amethod;
1516 if (class->rank > 1) {
1517 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1518 sig->ret = &mono_defaults.void_class->byval_arg;
1519 sig->pinvoke = TRUE;
1520 sig->hasthis = TRUE;
1521 for (i = 0; i < class->rank * 2; ++i)
1522 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1524 amethod = create_array_method (class, ".ctor", sig);
1525 methods [method_num++] = amethod;
1527 /* element Get (idx11, [idx2, ...]) */
1528 sig = mono_metadata_signature_alloc (class->image, class->rank);
1529 sig->ret = &class->element_class->byval_arg;
1530 sig->pinvoke = TRUE;
1531 sig->hasthis = TRUE;
1532 for (i = 0; i < class->rank; ++i)
1533 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1534 amethod = create_array_method (class, "Get", sig);
1535 methods [method_num++] = amethod;
1536 /* element& Address (idx11, [idx2, ...]) */
1537 sig = mono_metadata_signature_alloc (class->image, class->rank);
1538 sig->ret = &class->element_class->this_arg;
1539 sig->pinvoke = TRUE;
1540 sig->hasthis = TRUE;
1541 for (i = 0; i < class->rank; ++i)
1542 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1543 amethod = create_array_method (class, "Address", sig);
1544 methods [method_num++] = amethod;
1545 /* void Set (idx11, [idx2, ...], element) */
1546 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1547 sig->ret = &mono_defaults.void_class->byval_arg;
1548 sig->pinvoke = TRUE;
1549 sig->hasthis = TRUE;
1550 for (i = 0; i < class->rank; ++i)
1551 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1552 sig->params [i] = &class->element_class->byval_arg;
1553 amethod = create_array_method (class, "Set", sig);
1554 methods [method_num++] = amethod;
1556 for (i = 0; i < class->interface_count; i++)
1557 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1559 methods = mono_mempool_alloc (class->image->mempool, sizeof (MonoMethod*) * class->method.count);
1560 for (i = 0; i < class->method.count; ++i) {
1561 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1562 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1566 if (MONO_CLASS_IS_INTERFACE (class))
1567 for (i = 0; i < class->method.count; ++i)
1568 methods [i]->slot = i;
1570 /* Needed because of the double-checking locking pattern */
1571 mono_memory_barrier ();
1573 class->methods = methods;
1575 if (mono_debugger_class_loaded_methods_func)
1576 mono_debugger_class_loaded_methods_func (class);
1578 mono_loader_unlock ();
1582 * mono_class_get_method_by_index:
1584 * Returns class->methods [index], initializing class->methods if neccesary.
1586 * LOCKING: Acquires the loader lock.
1589 mono_class_get_method_by_index (MonoClass *class, int index)
1591 /* Avoid calling setup_methods () if possible */
1592 if (class->generic_class && !class->methods) {
1593 MonoClass *gklass = class->generic_class->container_class;
1596 m = mono_class_inflate_generic_method_full (
1597 gklass->methods [index], class, mono_class_get_context (class));
1599 * If setup_methods () is called later for this class, no duplicates are created,
1600 * since inflate_generic_method guarantees that only one instance of a method
1601 * is created for each context.
1604 mono_class_setup_methods (class);
1605 g_assert (m == class->methods [index]);
1609 mono_class_setup_methods (class);
1610 g_assert (index >= 0 && index < class->method.count);
1611 return class->methods [index];
1616 mono_class_setup_properties (MonoClass *class)
1618 guint startm, endm, i, j;
1619 guint32 cols [MONO_PROPERTY_SIZE];
1620 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1621 MonoProperty *properties;
1624 if (class->properties)
1627 mono_loader_lock ();
1629 if (class->properties) {
1630 mono_loader_unlock ();
1634 if (class->generic_class) {
1635 MonoClass *gklass = class->generic_class->container_class;
1637 class->property = gklass->property;
1639 mono_class_init (gklass);
1640 mono_class_setup_properties (gklass);
1642 properties = g_new0 (MonoProperty, class->property.count + 1);
1644 for (i = 0; i < class->property.count; i++) {
1645 MonoProperty *prop = &properties [i];
1647 *prop = gklass->properties [i];
1650 prop->get = mono_class_inflate_generic_method_full (
1651 prop->get, class, mono_class_get_context (class));
1653 prop->set = mono_class_inflate_generic_method_full (
1654 prop->set, class, mono_class_get_context (class));
1656 prop->parent = class;
1659 class->property.first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1660 class->property.count = last - class->property.first;
1662 if (class->property.count)
1663 mono_class_setup_methods (class);
1665 properties = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoProperty) * class->property.count);
1666 for (i = class->property.first; i < last; ++i) {
1667 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
1668 properties [i - class->property.first].parent = class;
1669 properties [i - class->property.first].attrs = cols [MONO_PROPERTY_FLAGS];
1670 properties [i - class->property.first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
1672 startm = mono_metadata_methods_from_property (class->image, i, &endm);
1673 for (j = startm; j < endm; ++j) {
1676 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1678 if (class->image->uncompressed_metadata)
1679 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1680 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1682 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1684 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1685 case METHOD_SEMANTIC_SETTER:
1686 properties [i - class->property.first].set = method;
1688 case METHOD_SEMANTIC_GETTER:
1689 properties [i - class->property.first].get = method;
1698 /* Leave this assignment as the last op in the function */
1699 class->properties = properties;
1701 mono_loader_unlock ();
1705 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
1707 MonoMethod **om, **retval;
1710 for (om = methods, count = 0; *om; ++om, ++count)
1713 retval = g_new0 (MonoMethod*, count + 1);
1715 for (om = methods, count = 0; *om; ++om, ++count)
1716 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
1722 mono_class_setup_events (MonoClass *class)
1724 guint startm, endm, i, j;
1725 guint32 cols [MONO_EVENT_SIZE];
1726 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1733 mono_loader_lock ();
1735 if (class->events) {
1736 mono_loader_unlock ();
1740 if (class->generic_class) {
1741 MonoClass *gklass = class->generic_class->container_class;
1742 MonoGenericContext *context;
1744 mono_class_setup_events (gklass);
1745 class->event = gklass->event;
1747 class->events = g_new0 (MonoEvent, class->event.count);
1749 if (class->event.count)
1750 context = mono_class_get_context (class);
1752 for (i = 0; i < class->event.count; i++) {
1753 MonoEvent *event = &class->events [i];
1754 MonoEvent *gevent = &gklass->events [i];
1756 event->parent = class;
1757 event->name = gevent->name;
1758 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
1759 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
1760 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
1761 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
1762 event->attrs = gevent->attrs;
1765 mono_loader_unlock ();
1769 class->event.first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1770 class->event.count = last - class->event.first;
1772 if (class->event.count)
1773 mono_class_setup_methods (class);
1775 events = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoEvent) * class->event.count);
1776 for (i = class->event.first; i < last; ++i) {
1777 MonoEvent *event = &events [i - class->event.first];
1779 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
1780 event->parent = class;
1781 event->attrs = cols [MONO_EVENT_FLAGS];
1782 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
1784 startm = mono_metadata_methods_from_event (class->image, i, &endm);
1785 for (j = startm; j < endm; ++j) {
1788 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1790 if (class->image->uncompressed_metadata)
1791 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1792 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1794 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1796 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1797 case METHOD_SEMANTIC_ADD_ON:
1798 event->add = method;
1800 case METHOD_SEMANTIC_REMOVE_ON:
1801 event->remove = method;
1803 case METHOD_SEMANTIC_FIRE:
1804 event->raise = method;
1806 case METHOD_SEMANTIC_OTHER: {
1809 if (event->other == NULL) {
1810 event->other = g_new0 (MonoMethod*, 2);
1812 while (event->other [n])
1814 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
1816 event->other [n] = method;
1817 /* NULL terminated */
1818 event->other [n + 1] = NULL;
1826 /* Leave this assignment as the last op in the function */
1827 class->events = events;
1829 mono_loader_unlock ();
1833 * Global pool of interface IDs, represented as a bitset.
1834 * LOCKING: this is supposed to be accessed with the loader lock held.
1836 static MonoBitSet *global_interface_bitset = NULL;
1839 * mono_unload_interface_ids:
1840 * @bitset: bit set of interface IDs
1842 * When an image is unloaded, the interface IDs associated with
1843 * the image are put back in the global pool of IDs so the numbers
1847 mono_unload_interface_ids (MonoBitSet *bitset)
1849 mono_loader_lock ();
1850 mono_bitset_sub (global_interface_bitset, bitset);
1851 mono_loader_unlock ();
1855 * mono_get_unique_iid:
1858 * Assign a unique integer ID to the interface represented by @class.
1859 * The ID will positive and as small as possible.
1860 * LOCKING: this is supposed to be called with the loader lock held.
1861 * Returns: the new ID.
1864 mono_get_unique_iid (MonoClass *class)
1868 g_assert (MONO_CLASS_IS_INTERFACE (class));
1870 if (!global_interface_bitset) {
1871 global_interface_bitset = mono_bitset_new (128, 0);
1874 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
1876 int old_size = mono_bitset_size (global_interface_bitset);
1877 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
1878 mono_bitset_free (global_interface_bitset);
1879 global_interface_bitset = new_set;
1882 mono_bitset_set (global_interface_bitset, iid);
1883 /* set the bit also in the per-image set */
1884 if (class->image->interface_bitset) {
1885 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
1886 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
1887 mono_bitset_free (class->image->interface_bitset);
1888 class->image->interface_bitset = new_set;
1891 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
1893 mono_bitset_set (class->image->interface_bitset, iid);
1895 if (mono_print_vtable) {
1897 char *type_name = mono_type_full_name (&class->byval_arg);
1898 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
1899 generic_id = class->generic_class->context.class_inst->id;
1900 g_assert (generic_id != 0);
1904 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
1908 g_assert (iid <= 65535);
1913 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res)
1918 for (i = 0; i < klass->interface_count; i++) {
1919 ic = klass->interfaces [i];
1922 *res = g_ptr_array_new ();
1923 g_ptr_array_add (*res, ic);
1924 mono_class_init (ic);
1926 collect_implemented_interfaces_aux (ic, res);
1931 mono_class_get_implemented_interfaces (MonoClass *klass)
1933 GPtrArray *res = NULL;
1935 collect_implemented_interfaces_aux (klass, &res);
1940 compare_interface_ids (const void *p_key, const void *p_element) {
1941 const MonoClass *key = p_key;
1942 const MonoClass *element = *(MonoClass**) p_element;
1944 return (key->interface_id - element->interface_id);
1948 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
1949 MonoClass **result = bsearch (
1951 klass->interfaces_packed,
1952 klass->interface_offsets_count,
1953 sizeof (MonoClass *),
1954 compare_interface_ids);
1956 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
1963 print_implemented_interfaces (MonoClass *klass) {
1964 GPtrArray *ifaces = NULL;
1966 int ancestor_level = 0;
1968 printf ("Packed interface table for class %s has size %d\n", klass->name, klass->interface_offsets_count);
1969 for (i = 0; i < klass->interface_offsets_count; i++)
1970 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
1971 klass->interfaces_packed [i]->interface_id,
1972 klass->interface_offsets_packed [i],
1973 klass->interfaces_packed [i]->method.count,
1974 klass->interfaces_packed [i]->name_space,
1975 klass->interfaces_packed [i]->name );
1976 printf ("Interface flags: ");
1977 for (i = 0; i <= klass->max_interface_id; i++)
1978 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
1979 printf ("(%d,T)", i);
1981 printf ("(%d,F)", i);
1983 printf ("Dump interface flags:");
1984 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
1985 printf (" %02X", klass->interface_bitmap [i]);
1987 while (klass != NULL) {
1988 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
1989 ifaces = mono_class_get_implemented_interfaces (klass);
1991 for (i = 0; i < ifaces->len; i++) {
1992 MonoClass *ic = g_ptr_array_index (ifaces, i);
1993 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
1994 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
1996 mono_class_interface_offset (klass, ic),
2001 g_ptr_array_free (ifaces, TRUE);
2004 klass = klass->parent;
2008 /* this won't be needed once bug #325495 is completely fixed
2009 * though we'll need something similar to know which interfaces to allow
2010 * in arrays when they'll be lazyly created
2013 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2015 MonoClass *eclass = class->element_class;
2016 static MonoClass* generic_icollection_class = NULL;
2017 static MonoClass* generic_ienumerable_class = NULL;
2018 static MonoClass* generic_ienumerator_class = NULL;
2019 MonoClass *fclass = NULL;
2020 MonoClass **interfaces = NULL;
2021 int i, interface_count, real_count;
2023 gboolean internal_enumerator;
2024 gboolean eclass_is_valuetype;
2026 if (!mono_defaults.generic_ilist_class) {
2030 internal_enumerator = FALSE;
2031 eclass_is_valuetype = FALSE;
2032 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2033 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2035 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2037 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2038 eclass = eclass->element_class;
2039 internal_enumerator = TRUE;
2040 *is_enumerator = TRUE;
2048 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2049 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2051 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2053 if (!generic_icollection_class) {
2054 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2055 "System.Collections.Generic", "ICollection`1");
2056 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2057 "System.Collections.Generic", "IEnumerable`1");
2058 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2059 "System.Collections.Generic", "IEnumerator`1");
2062 mono_class_init (eclass);
2065 * Arrays in 2.0 need to implement a number of generic interfaces
2066 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2067 * on the element class). We collect the types needed to build the
2068 * instantiations in interfaces at intervals of 3, because 3 are
2069 * the generic interfaces needed to implement.
2071 if (eclass->valuetype) {
2072 if (eclass == mono_defaults.int16_class)
2073 fclass = mono_defaults.uint16_class;
2074 else if (eclass == mono_defaults.uint16_class)
2075 fclass = mono_defaults.int16_class;
2076 else if (eclass == mono_defaults.int32_class)
2077 fclass = mono_defaults.uint32_class;
2078 else if (eclass == mono_defaults.uint32_class)
2079 fclass = mono_defaults.int32_class;
2080 else if (eclass == mono_defaults.int64_class)
2081 fclass = mono_defaults.uint64_class;
2082 else if (eclass == mono_defaults.uint64_class)
2083 fclass = mono_defaults.int64_class;
2084 else if (eclass == mono_defaults.byte_class)
2085 fclass = mono_defaults.sbyte_class;
2086 else if (eclass == mono_defaults.sbyte_class)
2087 fclass = mono_defaults.byte_class;
2089 /* No additional interfaces for other value types */
2094 /* IList, ICollection, IEnumerable */
2095 real_count = interface_count = 3;
2096 interfaces = g_malloc0 (sizeof (MonoClass*) * interface_count);
2097 interfaces [0] = fclass;
2098 eclass_is_valuetype = TRUE;
2101 int idepth = eclass->idepth;
2102 if (!internal_enumerator)
2104 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2105 /* we add object for interfaces and the supertypes for the other
2106 * types. The last of the supertypes is the element class itself which we
2107 * already created the explicit interfaces for (so we include it for IEnumerator
2108 * and exclude it for arrays).
2110 if (MONO_CLASS_IS_INTERFACE (eclass))
2113 interface_count += idepth;
2114 /* IList, ICollection, IEnumerable */
2115 interface_count *= 3;
2116 real_count = interface_count;
2117 if (internal_enumerator)
2118 real_count += idepth + eclass->interface_offsets_count;
2119 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2120 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2121 interfaces [0] = mono_defaults.object_class;
2125 for (i = 0; i < idepth; i++) {
2126 mono_class_init (eclass->supertypes [i]);
2127 interfaces [j] = eclass->supertypes [i];
2131 if (all_interfaces) {
2132 for (i = 0; i < eclass->interface_offsets_count; i++) {
2133 interfaces [j] = eclass->interfaces_packed [i];
2137 for (i = 0; i < eclass->interface_count; i++) {
2138 interfaces [j] = eclass->interfaces [i];
2144 /* instantiate the generic interfaces */
2145 for (i = 0; i < interface_count; i += 3) {
2147 MonoClass *iface = interfaces [i];
2149 args [0] = &iface->byval_arg;
2150 interfaces [i] = mono_class_bind_generic_parameters (
2151 mono_defaults.generic_ilist_class, 1, args, FALSE);
2152 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));
2153 args [0] = &iface->byval_arg;
2154 interfaces [i + 1] = mono_class_bind_generic_parameters (
2155 generic_icollection_class, 1, args, FALSE);
2156 args [0] = &iface->byval_arg;
2157 interfaces [i + 2] = mono_class_bind_generic_parameters (
2158 generic_ienumerable_class, 1, args, FALSE);
2159 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i + 1]->byval_arg, 0));
2160 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i + 2]->byval_arg, 0));
2162 if (internal_enumerator) {
2164 /* instantiate IEnumerator<iface> */
2165 for (i = 0; i < interface_count; i++) {
2167 MonoClass *iface = interfaces [i];
2169 args [0] = &iface->byval_arg;
2170 interfaces [i] = mono_class_bind_generic_parameters (
2171 generic_ienumerator_class, 1, args, FALSE);
2172 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
2174 if (!eclass_is_valuetype) {
2175 j = interface_count;
2176 for (i = 0; i < eclass->idepth; i++) {
2178 args [0] = &eclass->supertypes [i]->byval_arg;
2179 interfaces [j] = mono_class_bind_generic_parameters (
2180 generic_ienumerator_class, 1, args, FALSE);
2181 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
2184 for (i = 0; i < eclass->interface_offsets_count; i++) {
2185 MonoClass *iface = eclass->interfaces_packed [i];
2187 args [0] = &iface->byval_arg;
2188 interfaces [j] = mono_class_bind_generic_parameters (
2189 generic_ienumerator_class, 1, args, FALSE);
2190 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
2200 * LOCKING: this is supposed to be called with the loader lock held.
2203 setup_interface_offsets (MonoClass *class, int cur_slot)
2207 MonoClass **interfaces_full;
2208 int *interface_offsets_full;
2210 int interface_offsets_count;
2211 MonoClass **array_interfaces;
2212 int num_array_interfaces;
2213 int is_enumerator = FALSE;
2216 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
2217 * implicit interfaces have the property that they are assigned the same slot in the
2218 * vtables for compatible interfaces
2220 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
2222 /* compute maximum number of slots and maximum interface id */
2224 for (k = class; k ; k = k->parent) {
2225 for (i = 0; i < k->interface_count; i++) {
2226 ic = k->interfaces [i];
2229 mono_class_init (ic);
2231 if (max_iid < ic->interface_id)
2232 max_iid = ic->interface_id;
2234 ifaces = mono_class_get_implemented_interfaces (k);
2236 for (i = 0; i < ifaces->len; ++i) {
2237 ic = g_ptr_array_index (ifaces, i);
2238 if (max_iid < ic->interface_id)
2239 max_iid = ic->interface_id;
2241 g_ptr_array_free (ifaces, TRUE);
2244 for (i = 0; i < num_array_interfaces; ++i) {
2245 ic = array_interfaces [i];
2246 mono_class_init (ic);
2247 if (max_iid < ic->interface_id)
2248 max_iid = ic->interface_id;
2251 if (MONO_CLASS_IS_INTERFACE (class)) {
2252 if (max_iid < class->interface_id)
2253 max_iid = class->interface_id;
2255 class->max_interface_id = max_iid;
2256 /* compute vtable offset for interfaces */
2257 interfaces_full = g_malloc (sizeof (MonoClass*) * (max_iid + 1));
2258 interface_offsets_full = g_malloc (sizeof (int) * (max_iid + 1));
2260 for (i = 0; i <= max_iid; i++) {
2261 interfaces_full [i] = NULL;
2262 interface_offsets_full [i] = -1;
2265 ifaces = mono_class_get_implemented_interfaces (class);
2267 for (i = 0; i < ifaces->len; ++i) {
2268 ic = g_ptr_array_index (ifaces, i);
2269 interfaces_full [ic->interface_id] = ic;
2270 interface_offsets_full [ic->interface_id] = cur_slot;
2271 cur_slot += ic->method.count;
2273 g_ptr_array_free (ifaces, TRUE);
2276 for (k = class->parent; k ; k = k->parent) {
2277 ifaces = mono_class_get_implemented_interfaces (k);
2279 for (i = 0; i < ifaces->len; ++i) {
2280 ic = g_ptr_array_index (ifaces, i);
2282 if (interface_offsets_full [ic->interface_id] == -1) {
2283 int io = mono_class_interface_offset (k, ic);
2287 interfaces_full [ic->interface_id] = ic;
2288 interface_offsets_full [ic->interface_id] = io;
2291 g_ptr_array_free (ifaces, TRUE);
2295 if (MONO_CLASS_IS_INTERFACE (class)) {
2296 interfaces_full [class->interface_id] = class;
2297 interface_offsets_full [class->interface_id] = cur_slot;
2300 if (num_array_interfaces) {
2301 if (is_enumerator) {
2302 int ienumerator_offset;
2303 g_assert (strcmp (class->interfaces [0]->name, "IEnumerator`1") == 0);
2304 ienumerator_offset = interface_offsets_full [class->interfaces [0]->interface_id];
2305 for (i = 0; i < num_array_interfaces; ++i) {
2306 ic = array_interfaces [i];
2307 interfaces_full [ic->interface_id] = ic;
2308 if (strcmp (ic->name, "IEnumerator`1") == 0)
2309 interface_offsets_full [ic->interface_id] = ienumerator_offset;
2311 g_assert_not_reached ();
2312 /*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);*/
2315 int ilist_offset, icollection_offset, ienumerable_offset;
2316 g_assert (strcmp (class->interfaces [0]->name, "IList`1") == 0);
2317 g_assert (strcmp (class->interfaces [0]->interfaces [0]->name, "ICollection`1") == 0);
2318 g_assert (strcmp (class->interfaces [0]->interfaces [1]->name, "IEnumerable`1") == 0);
2319 ilist_offset = interface_offsets_full [class->interfaces [0]->interface_id];
2320 icollection_offset = interface_offsets_full [class->interfaces [0]->interfaces [0]->interface_id];
2321 ienumerable_offset = interface_offsets_full [class->interfaces [0]->interfaces [1]->interface_id];
2322 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
2323 for (i = 0; i < num_array_interfaces; ++i) {
2324 ic = array_interfaces [i];
2325 interfaces_full [ic->interface_id] = ic;
2326 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
2327 interface_offsets_full [ic->interface_id] = ilist_offset;
2328 else if (strcmp (ic->name, "ICollection`1") == 0)
2329 interface_offsets_full [ic->interface_id] = icollection_offset;
2330 else if (strcmp (ic->name, "IEnumerable`1") == 0)
2331 interface_offsets_full [ic->interface_id] = ienumerable_offset;
2333 g_assert_not_reached ();
2334 /*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);*/
2339 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2340 if (interface_offsets_full [i] != -1) {
2341 interface_offsets_count ++;
2346 * We might get called twice: once from mono_class_init () then once from
2347 * mono_class_setup_vtable ().
2349 if (class->interfaces_packed) {
2350 g_assert (class->interface_offsets_count == interface_offsets_count);
2352 class->interface_offsets_count = interface_offsets_count;
2353 class->interfaces_packed = mono_mempool_alloc (class->image->mempool, sizeof (MonoClass*) * interface_offsets_count);
2354 class->interface_offsets_packed = mono_mempool_alloc (class->image->mempool, sizeof (guint16) * interface_offsets_count);
2355 class->interface_bitmap = mono_mempool_alloc0 (class->image->mempool, (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0));
2356 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2357 if (interface_offsets_full [i] != -1) {
2358 class->interface_bitmap [i >> 3] |= (1 << (i & 7));
2359 class->interfaces_packed [interface_offsets_count] = interfaces_full [i];
2360 class->interface_offsets_packed [interface_offsets_count] = interface_offsets_full [i];
2361 /*if (num_array_interfaces)
2362 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]);*/
2363 interface_offsets_count ++;
2368 g_free (interfaces_full);
2369 g_free (interface_offsets_full);
2370 g_free (array_interfaces);
2372 //printf ("JUST DONE: ");
2373 //print_implemented_interfaces (class);
2379 * Setup interface offsets for interfaces. Used by Ref.Emit.
2382 mono_class_setup_interface_offsets (MonoClass *class)
2384 mono_loader_lock ();
2386 setup_interface_offsets (class, 0);
2388 mono_loader_unlock ();
2392 * mono_class_setup_vtable:
2394 * Creates the generic vtable of CLASS.
2395 * Initializes the following fields in MonoClass:
2398 * Plus all the fields initialized by setup_interface_offsets ().
2399 * If there is an error during vtable construction, class->exception_type is set.
2401 * LOCKING: Acquires the loader lock.
2404 mono_class_setup_vtable (MonoClass *class)
2406 MonoMethod **overrides;
2407 MonoGenericContext *context;
2416 /* This sets method->slot for all methods if this is an interface */
2417 mono_class_setup_methods (class);
2419 if (MONO_CLASS_IS_INTERFACE (class))
2422 mono_loader_lock ();
2424 if (class->vtable) {
2425 mono_loader_unlock ();
2429 mono_stats.generic_vtable_count ++;
2431 if (class->generic_class) {
2432 context = mono_class_get_context (class);
2433 type_token = class->generic_class->container_class->type_token;
2435 context = (MonoGenericContext *) class->generic_container;
2436 type_token = class->type_token;
2439 if (class->image->dynamic) {
2440 if (class->generic_class) {
2441 MonoClass *gklass = class->generic_class->container_class;
2443 mono_reflection_get_dynamic_overrides (gklass, &overrides, &onum);
2444 for (i = 0; i < onum; ++i) {
2445 MonoMethod *override = overrides [(i * 2) + 1];
2446 MonoMethod *inflated = NULL;
2449 for (j = 0; j < class->method.count; ++j) {
2450 if (gklass->methods [j] == override) {
2451 inflated = class->methods [j];
2455 g_assert (inflated);
2457 overrides [(i * 2) + 1] = inflated;
2460 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
2463 /* The following call fails if there are missing methods in the type */
2464 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
2468 mono_class_setup_vtable_general (class, overrides, onum);
2472 mono_loader_unlock ();
2478 check_core_clr_override_method (MonoClass *class, MonoMethod *override, MonoMethod *base)
2480 MonoSecurityCoreCLRLevel override_level = mono_security_core_clr_method_level (override, FALSE);
2481 MonoSecurityCoreCLRLevel base_level = mono_security_core_clr_method_level (base, FALSE);
2483 if (override_level != base_level && base_level == MONO_SECURITY_CORE_CLR_CRITICAL)
2484 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2488 static int __use_new_interface_vtable_code = -1;
2490 use_new_interface_vtable_code (void) {
2491 if (__use_new_interface_vtable_code == -1) {
2492 char *env_var = getenv ("MONO_USE_NEW_INTERFACE_VTABLE_CODE");
2493 if (env_var == NULL) {
2494 __use_new_interface_vtable_code = TRUE;
2496 if ((strcmp (env_var, "0") == 0) || (strcmp (env_var, "false") == 0) || (strcmp (env_var, "FALSE") == 0)) {
2497 __use_new_interface_vtable_code = FALSE;
2499 __use_new_interface_vtable_code = TRUE;
2503 return __use_new_interface_vtable_code;
2507 #define DEBUG_INTERFACE_VTABLE_CODE 0
2508 #define TRACE_INTERFACE_VTABLE_CODE 0
2510 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2511 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
2515 #define DEBUG_INTERFACE_VTABLE(stmt)
2518 #if TRACE_INTERFACE_VTABLE_CODE
2519 #define TRACE_INTERFACE_VTABLE(stmt) do {\
2523 #define TRACE_INTERFACE_VTABLE(stmt)
2527 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2529 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
2533 GString *res = g_string_new ("");
2535 g_string_append_c (res, '(');
2536 for (i = 0; i < sig->param_count; ++i) {
2538 g_string_append_c (res, ',');
2539 mono_type_get_desc (res, sig->params [i], include_namespace);
2541 g_string_append (res, ")=>");
2542 if (sig->ret != NULL) {
2543 mono_type_get_desc (res, sig->ret, include_namespace);
2545 g_string_append (res, "NULL");
2548 g_string_free (res, FALSE);
2552 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
2553 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
2554 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
2555 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
2563 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) {
2564 if (strcmp (im->name, cm->name) == 0) {
2565 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
2566 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
2569 if (! slot_is_empty) {
2570 if (require_newslot) {
2571 if (! interface_is_explicitly_implemented_by_class) {
2572 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
2575 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2576 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
2580 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
2583 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2584 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
2585 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2586 TRACE_INTERFACE_VTABLE (printf ("]"));
2589 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
2590 /* CAS - SecurityAction.InheritanceDemand on interface */
2591 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2592 mono_secman_inheritancedemand_method (cm, im);
2595 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2596 check_core_clr_override_method (class, cm, im);
2597 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
2600 MonoClass *ic = im->klass;
2601 const char *ic_name_space = ic->name_space;
2602 const char *ic_name = ic->name;
2605 if (! require_newslot) {
2606 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
2609 if (cm->klass->rank == 0) {
2610 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
2613 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2614 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
2615 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2616 TRACE_INTERFACE_VTABLE (printf ("]"));
2619 if (mono_class_get_image (ic) != mono_defaults.corlib) {
2620 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
2623 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
2624 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
2627 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
2628 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
2632 subname = strstr (cm->name, ic_name_space);
2633 if (subname != cm->name) {
2634 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
2637 subname += strlen (ic_name_space);
2638 if (subname [0] != '.') {
2639 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
2643 if (strstr (subname, ic_name) != subname) {
2644 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
2647 subname += strlen (ic_name);
2648 if (subname [0] != '.') {
2649 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
2653 if (strcmp (subname, im->name) != 0) {
2654 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
2658 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
2659 /* CAS - SecurityAction.InheritanceDemand on interface */
2660 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2661 mono_secman_inheritancedemand_method (cm, im);
2664 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2665 check_core_clr_override_method (class, cm, im);
2667 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
2672 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2674 foreach_override (gpointer key, gpointer value, gpointer user_data) {
2675 MonoMethod *method = key;
2676 MonoMethod *override = value;
2677 MonoClass *method_class = mono_method_get_class (method);
2678 MonoClass *override_class = mono_method_get_class (override);
2680 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
2681 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
2682 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
2685 print_overrides (GHashTable *override_map, const char *message) {
2687 printf ("Override map \"%s\" START:\n", message);
2688 g_hash_table_foreach (override_map, foreach_override, NULL);
2689 printf ("Override map \"%s\" END.\n", message);
2691 printf ("Override map \"%s\" EMPTY.\n", message);
2695 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
2696 char *full_name = mono_type_full_name (&class->byval_arg);
2700 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
2702 if (print_interfaces) {
2703 print_implemented_interfaces (class);
2704 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
2707 if (class->parent) {
2708 parent_size = class->parent->vtable_size;
2712 for (i = 0; i < size; ++i) {
2713 MonoMethod *cm = vtable [i];
2715 char *cm_name = mono_method_full_name (cm, TRUE);
2716 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
2717 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
2727 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
2729 char *method_signature;
2731 for (index = 0; index < onum; ++index) {
2732 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
2733 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
2735 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
2736 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
2737 mono_type_get_name (&ic->byval_arg), im->name, method_signature, class->name_space, class->name);
2738 g_free (method_signature);
2739 for (index = 0; index < class->method.count; ++index) {
2740 MonoMethod *cm = class->methods [index];
2741 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
2743 printf ("METHOD %s(%s)\n", cm->name, method_signature);
2744 g_free (method_signature);
2749 * LOCKING: this is supposed to be called with the loader lock held.
2752 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
2755 MonoMethod **vtable;
2756 int i, max_vtsize = 0, max_iid, cur_slot = 0;
2757 GPtrArray *ifaces, *pifaces = NULL;
2758 GHashTable *override_map = NULL;
2759 gboolean security_enabled = mono_is_security_manager_active ();
2760 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
2761 int first_non_interface_slot;
2767 ifaces = mono_class_get_implemented_interfaces (class);
2769 for (i = 0; i < ifaces->len; i++) {
2770 MonoClass *ic = g_ptr_array_index (ifaces, i);
2771 max_vtsize += ic->method.count;
2773 g_ptr_array_free (ifaces, TRUE);
2777 if (class->parent) {
2778 mono_class_init (class->parent);
2779 mono_class_setup_vtable (class->parent);
2780 max_vtsize += class->parent->vtable_size;
2781 cur_slot = class->parent->vtable_size;
2784 max_vtsize += class->method.count;
2786 vtable = alloca (sizeof (gpointer) * max_vtsize);
2787 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
2789 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
2791 cur_slot = setup_interface_offsets (class, cur_slot);
2792 max_iid = class->max_interface_id;
2793 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
2795 if (use_new_interface_vtable_code ()) {
2796 if (class->parent && class->parent->vtable_size) {
2797 MonoClass *parent = class->parent;
2800 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
2802 // Also inherit parent interface vtables, just as a starting point.
2803 // This is needed otherwise bug-77127.exe fails when the property methods
2804 // have different names in the iterface and the class, because for child
2805 // classes the ".override" information is not used anymore.
2806 for (i = 0; i < parent->interface_offsets_count; i++) {
2807 MonoClass *parent_interface = parent->interfaces_packed [i];
2808 int interface_offset = mono_class_interface_offset (class, parent_interface);
2810 if (interface_offset >= parent->vtable_size) {
2811 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
2814 mono_class_setup_methods (parent_interface);
2815 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
2816 for (j = 0; j < parent_interface->method.count; j++) {
2817 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
2818 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
2819 parent_interface_offset + j, parent_interface_offset, j,
2820 interface_offset + j, interface_offset, j));
2827 if (class->parent && class->parent->vtable_size)
2828 memcpy (vtable, class->parent->vtable, sizeof (gpointer) * class->parent->vtable_size);
2831 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
2832 /* override interface methods */
2833 for (i = 0; i < onum; i++) {
2834 MonoMethod *decl = overrides [i*2];
2835 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
2837 mono_class_setup_methods (decl->klass);
2838 g_assert (decl->slot != -1);
2839 dslot = decl->slot + mono_class_interface_offset (class, decl->klass);
2840 vtable [dslot] = overrides [i*2 + 1];
2841 vtable [dslot]->slot = dslot;
2843 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
2845 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
2847 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2848 check_core_clr_override_method (class, vtable [dslot], decl);
2851 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
2852 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
2854 if (use_new_interface_vtable_code ()) {
2855 // Loop on all implemented interfaces...
2856 for (i = 0; i < class->interface_offsets_count; i++) {
2857 MonoClass *parent = class->parent;
2859 gboolean interface_is_explicitly_implemented_by_class;
2862 ic = class->interfaces_packed [i];
2863 ic_offset = mono_class_interface_offset (class, ic);
2865 mono_class_setup_methods (ic);
2867 // Check if this interface is explicitly implemented (instead of just inherited)
2868 if (parent != NULL) {
2869 int implemented_interfaces_index;
2870 interface_is_explicitly_implemented_by_class = FALSE;
2871 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
2872 if (ic == class->interfaces [implemented_interfaces_index]) {
2873 interface_is_explicitly_implemented_by_class = TRUE;
2878 interface_is_explicitly_implemented_by_class = TRUE;
2881 // Loop on all interface methods...
2882 for (im_index = 0; im_index < ic->method.count; im_index++) {
2883 MonoMethod *im = ic->methods [im_index];
2884 int im_slot = ic_offset + im->slot;
2885 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
2887 if (im->flags & METHOD_ATTRIBUTE_STATIC)
2890 // If there is an explicit implementation, just use it right away,
2891 // otherwise look for a matching method
2892 if (override_im == NULL) {
2895 // First look for a suitable method among the class methods
2896 for (cm_index = 0; cm_index < class->method.count; cm_index++) {
2897 MonoMethod *cm = class->methods [cm_index];
2899 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)));
2900 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)) {
2901 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
2902 vtable [im_slot] = cm;
2903 /* Why do we need this? */
2908 TRACE_INTERFACE_VTABLE (printf ("\n"));
2911 // If the slot is still empty, look in all the inherited virtual methods...
2912 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
2913 MonoClass *parent = class->parent;
2914 // Reverse order, so that last added methods are preferred
2915 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
2916 MonoMethod *cm = parent->vtable [cm_index];
2918 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));
2919 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
2920 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
2921 vtable [im_slot] = cm;
2922 /* Why do we need this? */
2928 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
2932 g_assert (vtable [im_slot] == override_im);
2937 // If the class is not abstract, check that all its interface slots are full.
2938 // The check is done here and not directly at the end of the loop above because
2939 // it can happen (for injected generic array interfaces) that the same slot is
2940 // processed multiple times (those interfaces have overlapping slots), and it
2941 // will not always be the first pass the one that fills the slot.
2942 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
2943 for (i = 0; i < class->interface_offsets_count; i++) {
2947 ic = class->interfaces_packed [i];
2948 ic_offset = mono_class_interface_offset (class, ic);
2950 for (im_index = 0; im_index < ic->method.count; im_index++) {
2951 MonoMethod *im = ic->methods [im_index];
2952 int im_slot = ic_offset + im->slot;
2954 if (im->flags & METHOD_ATTRIBUTE_STATIC)
2957 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
2958 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
2959 if (vtable [im_slot] == NULL) {
2960 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
2961 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2963 g_hash_table_destroy (override_map);
2970 for (k = class; k ; k = k->parent) {
2973 ifaces = mono_class_get_implemented_interfaces (k);
2975 nifaces = ifaces->len;
2976 if (k->generic_class) {
2977 pifaces = mono_class_get_implemented_interfaces (
2978 k->generic_class->container_class);
2979 g_assert (pifaces && (pifaces->len == nifaces));
2982 for (i = 0; i < nifaces; i++) {
2983 MonoClass *pic = NULL;
2986 ic = g_ptr_array_index (ifaces, i);
2988 pic = g_ptr_array_index (pifaces, i);
2989 g_assert (ic->interface_id <= k->max_interface_id);
2990 io = mono_class_interface_offset (k, ic);
2993 g_assert (io <= max_vtsize);
2996 mono_class_setup_methods (ic);
2997 for (l = 0; l < ic->method.count; l++) {
2998 MonoMethod *im = ic->methods [l];
3000 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
3003 for (j = 0; j < class->method.count; ++j) {
3004 MonoMethod *cm = class->methods [j];
3005 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL) ||
3006 !((cm->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == METHOD_ATTRIBUTE_PUBLIC) ||
3007 !(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT))
3009 if (!strcmp(cm->name, im->name) &&
3010 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
3012 /* CAS - SecurityAction.InheritanceDemand on interface */
3013 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3014 mono_secman_inheritancedemand_method (cm, im);
3017 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3018 check_core_clr_override_method (class, cm, im);
3020 g_assert (io + l <= max_vtsize);
3021 vtable [io + l] = cm;
3022 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));
3023 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3024 TRACE_INTERFACE_VTABLE (printf ("\n"));
3029 /* already implemented */
3030 if (io >= k->vtable_size)
3034 // Override methods with the same fully qualified name
3035 for (l = 0; l < ic->method.count; l++) {
3036 MonoMethod *im = ic->methods [l];
3037 char *qname, *fqname, *cname, *the_cname;
3040 if (vtable [io + l])
3044 the_cname = mono_type_get_name_full (&pic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
3048 cname = (char*)ic->name;
3051 qname = g_strconcat (cname, ".", im->name, NULL);
3052 if (ic->name_space && ic->name_space [0])
3053 fqname = g_strconcat (ic->name_space, ".", cname, ".", im->name, NULL);
3057 for (k1 = class; k1; k1 = k1->parent) {
3058 for (j = 0; j < k1->method.count; ++j) {
3059 MonoMethod *cm = k1->methods [j];
3061 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3064 if (((fqname && !strcmp (cm->name, fqname)) || !strcmp (cm->name, qname)) &&
3065 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im)) &&
3066 ((vtable [io + l] == NULL) || mono_class_is_subclass_of (cm->klass, vtable [io + l]->klass, FALSE))) {
3068 /* CAS - SecurityAction.InheritanceDemand on interface */
3069 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3070 mono_secman_inheritancedemand_method (cm, im);
3073 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3074 check_core_clr_override_method (class, cm, im);
3076 g_assert (io + l <= max_vtsize);
3077 vtable [io + l] = cm;
3078 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));
3079 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3080 TRACE_INTERFACE_VTABLE (printf ("\n"));
3090 // Override methods with the same name
3091 for (l = 0; l < ic->method.count; l++) {
3092 MonoMethod *im = ic->methods [l];
3095 g_assert (io + l <= max_vtsize);
3097 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
3100 for (k1 = class; k1; k1 = k1->parent) {
3101 for (j = 0; j < k1->method.count; ++j) {
3102 MonoMethod *cm = k1->methods [j];
3104 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL) ||
3105 !(cm->flags & METHOD_ATTRIBUTE_PUBLIC))
3108 if (!strcmp(cm->name, im->name) &&
3109 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
3111 /* CAS - SecurityAction.InheritanceDemand on interface */
3112 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3113 mono_secman_inheritancedemand_method (cm, im);
3116 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3117 check_core_clr_override_method (class, cm, im);
3119 g_assert (io + l <= max_vtsize);
3120 vtable [io + l] = cm;
3121 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));
3122 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3123 TRACE_INTERFACE_VTABLE (printf ("\n"));
3128 g_assert (io + l <= max_vtsize);
3129 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
3134 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3135 for (l = 0; l < ic->method.count; l++) {
3137 MonoMethod *im = ic->methods [l];
3138 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3140 g_assert (io + l <= max_vtsize);
3143 * If one of our parents already implements this interface
3144 * we can inherit the implementation.
3146 if (!(vtable [io + l])) {
3147 MonoClass *parent = class->parent;
3149 for (; parent; parent = parent->parent) {
3150 if (MONO_CLASS_IMPLEMENTS_INTERFACE (parent, ic->interface_id) &&
3152 vtable [io + l] = parent->vtable [mono_class_interface_offset (parent, ic) + l];
3153 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));
3158 if (!(vtable [io + l])) {
3159 for (j = 0; j < onum; ++j) {
3160 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", io+l, overrides [j*2+1]->name,
3161 overrides [j*2+1]->slot, overrides [j*2]->name, overrides [j*2]->slot);
3163 msig = mono_signature_get_desc (mono_method_signature (im), FALSE);
3164 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
3165 mono_type_get_name (&ic->byval_arg), im->name, msig, class->name_space, class->name);
3167 for (j = 0; j < class->method.count; ++j) {
3168 MonoMethod *cm = class->methods [j];
3169 msig = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3171 printf ("METHOD %s(%s)\n", cm->name, msig);
3175 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3178 g_ptr_array_free (ifaces, TRUE);
3180 g_hash_table_destroy (override_map);
3187 for (l = 0; l < ic->method.count; l++) {
3188 MonoMethod *im = vtable [io + l];
3191 g_assert (io + l <= max_vtsize);
3193 /* FIXME: why do we need this ? */
3195 /* g_assert_not_reached (); */
3201 g_ptr_array_free (ifaces, TRUE);
3205 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
3206 for (i = 0; i < class->method.count; ++i) {
3209 cm = class->methods [i];
3212 * Non-virtual method have no place in the vtable.
3213 * This also catches static methods (since they are not virtual).
3215 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3219 * If the method is REUSE_SLOT, we must check in the
3220 * base class for a method to override.
3222 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3224 for (k = class->parent; k ; k = k->parent) {
3226 for (j = 0; j < k->method.count; ++j) {
3227 MonoMethod *m1 = k->methods [j];
3228 MonoMethodSignature *cmsig, *m1sig;
3230 if (!(m1->flags & METHOD_ATTRIBUTE_VIRTUAL))
3233 cmsig = mono_method_signature (cm);
3234 m1sig = mono_method_signature (m1);
3236 if (!cmsig || !m1sig) {
3237 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3241 if (!strcmp(cm->name, m1->name) &&
3242 mono_metadata_signature_equal (cmsig, m1sig)) {
3244 /* CAS - SecurityAction.InheritanceDemand */
3245 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3246 mono_secman_inheritancedemand_method (cm, m1);
3249 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3250 check_core_clr_override_method (class, cm, m1);
3252 slot = k->methods [j]->slot;
3253 g_assert (cm->slot < max_vtsize);
3255 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3256 g_hash_table_insert (override_map, m1, cm);
3268 cm->slot = cur_slot++;
3270 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
3271 vtable [cm->slot] = cm;
3274 /* override non interface methods */
3275 for (i = 0; i < onum; i++) {
3276 MonoMethod *decl = overrides [i*2];
3277 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
3278 g_assert (decl->slot != -1);
3279 vtable [decl->slot] = overrides [i*2 + 1];
3280 overrides [i * 2 + 1]->slot = decl->slot;
3282 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3283 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
3285 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3286 check_core_clr_override_method (class, vtable [decl->slot], decl);
3291 * If a method occupies more than one place in the vtable, and it is
3292 * overriden, then change the other occurances too.
3295 for (i = 0; i < max_vtsize; ++i)
3297 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
3302 g_hash_table_destroy (override_map);
3305 if (class->generic_class) {
3306 MonoClass *gklass = class->generic_class->container_class;
3308 mono_class_init (gklass);
3310 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
3312 /* Check that the vtable_size value computed in mono_class_init () is correct */
3313 if (class->vtable_size)
3314 g_assert (cur_slot == class->vtable_size);
3315 class->vtable_size = cur_slot;
3318 /* Try to share the vtable with our parent. */
3319 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
3320 mono_memory_barrier ();
3321 class->vtable = class->parent->vtable;
3323 MonoMethod **tmp = mono_mempool_alloc0 (class->image->mempool, sizeof (gpointer) * class->vtable_size);
3324 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
3325 mono_memory_barrier ();
3326 class->vtable = tmp;
3329 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
3330 if (mono_print_vtable) {
3333 print_implemented_interfaces (class);
3335 for (i = 0; i <= max_iid; i++)
3336 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
3339 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
3340 class->vtable_size, icount);
3342 for (i = 0; i < class->vtable_size; ++i) {
3347 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
3348 mono_method_full_name (cm, TRUE));
3354 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
3355 class->name, max_iid);
3357 for (i = 0; i < class->interface_count; i++) {
3358 ic = class->interfaces [i];
3359 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3360 mono_class_interface_offset (class, ic),
3361 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3364 for (k = class->parent; k ; k = k->parent) {
3365 for (i = 0; i < k->interface_count; i++) {
3366 ic = k->interfaces [i];
3367 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3368 mono_class_interface_offset (class, ic),
3369 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3376 static MonoMethod *default_ghc = NULL;
3377 static MonoMethod *default_finalize = NULL;
3378 static int finalize_slot = -1;
3379 static int ghc_slot = -1;
3382 initialize_object_slots (MonoClass *class)
3387 if (class == mono_defaults.object_class) {
3388 mono_class_setup_vtable (class);
3389 for (i = 0; i < class->vtable_size; ++i) {
3390 MonoMethod *cm = class->vtable [i];
3392 if (!strcmp (cm->name, "GetHashCode"))
3394 else if (!strcmp (cm->name, "Finalize"))
3398 g_assert (ghc_slot > 0);
3399 default_ghc = class->vtable [ghc_slot];
3401 g_assert (finalize_slot > 0);
3402 default_finalize = class->vtable [finalize_slot];
3407 g_list_prepend_mempool (GList* l, MonoMemPool* mp, gpointer datum)
3409 GList* n = mono_mempool_alloc (mp, sizeof (GList));
3417 MonoMethod *array_method;
3419 } GenericArrayMethodInfo;
3421 static int generic_array_method_num = 0;
3422 static GenericArrayMethodInfo *generic_array_method_info = NULL;
3425 generic_array_methods (MonoClass *class)
3427 int i, count_generic = 0;
3428 GList *list = NULL, *tmp;
3429 if (generic_array_method_num)
3430 return generic_array_method_num;
3431 mono_class_setup_methods (class->parent);
3432 for (i = 0; i < class->parent->method.count; i++) {
3433 MonoMethod *m = class->parent->methods [i];
3434 if (!strncmp (m->name, "InternalArray__", 15)) {
3436 list = g_list_prepend (list, m);
3439 list = g_list_reverse (list);
3440 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
3442 for (tmp = list; tmp; tmp = tmp->next) {
3443 const char *mname, *iname;
3445 MonoMethod *m = tmp->data;
3446 generic_array_method_info [i].array_method = m;
3447 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
3448 iname = "System.Collections.Generic.ICollection`1.";
3449 mname = m->name + 27;
3450 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
3451 iname = "System.Collections.Generic.IEnumerable`1.";
3452 mname = m->name + 27;
3453 } else if (!strncmp (m->name, "InternalArray__", 15)) {
3454 iname = "System.Collections.Generic.IList`1.";
3455 mname = m->name + 15;
3457 g_assert_not_reached ();
3460 name = mono_mempool_alloc (mono_defaults.corlib->mempool, strlen (iname) + strlen (mname) + 1);
3461 strcpy (name, iname);
3462 strcpy (name + strlen (iname), mname);
3463 generic_array_method_info [i].name = name;
3466 /*g_print ("array generic methods: %d\n", count_generic);*/
3468 generic_array_method_num = count_generic;
3469 return generic_array_method_num;
3473 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
3475 MonoGenericContext tmp_context;
3478 tmp_context.class_inst = NULL;
3479 tmp_context.method_inst = iface->generic_class->context.class_inst;
3480 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
3482 for (i = 0; i < generic_array_method_num; i++) {
3483 MonoMethod *m = generic_array_method_info [i].array_method;
3484 MonoMethod *inflated;
3486 inflated = mono_class_inflate_generic_method (m, &tmp_context);
3487 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
3492 concat_two_strings_with_zero (MonoMemPool *pool, const char *s1, const char *s2)
3494 int len = strlen (s1) + strlen (s2) + 2;
3495 char *s = mono_mempool_alloc (pool, len);
3498 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
3499 g_assert (result == len - 1);
3505 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
3507 gpointer exception_data = NULL;
3509 switch (error->exception_type) {
3510 case MONO_EXCEPTION_TYPE_LOAD:
3511 exception_data = concat_two_strings_with_zero (class->image->mempool, error->class_name, error->assembly_name);
3514 case MONO_EXCEPTION_MISSING_METHOD:
3515 exception_data = concat_two_strings_with_zero (class->image->mempool, error->class_name, error->member_name);
3518 case MONO_EXCEPTION_MISSING_FIELD: {
3519 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
3520 const char *class_name;
3523 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
3525 class_name = error->klass->name;
3527 exception_data = concat_two_strings_with_zero (class->image->mempool, class_name, error->member_name);
3530 g_free ((void*)class_name);
3534 case MONO_EXCEPTION_FILE_NOT_FOUND: {
3537 if (error->ref_only)
3538 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.";
3540 msg = "Could not load file or assembly '%s' or one of its dependencies.";
3542 exception_data = concat_two_strings_with_zero (class->image->mempool, msg, error->assembly_name);
3546 case MONO_EXCEPTION_BAD_IMAGE:
3547 exception_data = error->msg;
3551 g_assert_not_reached ();
3554 mono_class_set_failure (class, error->exception_type, exception_data);
3558 check_core_clr_inheritance (MonoClass *class)
3560 MonoSecurityCoreCLRLevel class_level, parent_level;
3561 MonoClass *parent = class->parent;
3566 class_level = mono_security_core_clr_class_level (class);
3567 parent_level = mono_security_core_clr_class_level (parent);
3569 if (class_level < parent_level)
3570 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3575 * @class: the class to initialize
3577 * Compute the instance_size, class_size and other infos that cannot be
3578 * computed at mono_class_get() time. Also compute vtable_size if possible.
3579 * Returns TRUE on success or FALSE if there was a problem in loading
3580 * the type (incorrect assemblies, missing assemblies, methods, etc).
3582 * LOCKING: Acquires the loader lock.
3585 mono_class_init (MonoClass *class)
3588 MonoCachedClassInfo cached_info;
3589 gboolean has_cached_info;
3590 int class_init_ok = TRUE;
3594 /* Double-checking locking pattern */
3596 return class->exception_type == MONO_EXCEPTION_NONE;
3598 /*g_print ("Init class %s\n", class->name);*/
3600 /* We do everything inside the lock to prevent races */
3601 mono_loader_lock ();
3603 if (class->inited) {
3604 mono_loader_unlock ();
3605 /* Somebody might have gotten in before us */
3606 return class->exception_type == MONO_EXCEPTION_NONE;
3609 if (class->init_pending) {
3610 mono_loader_unlock ();
3611 /* this indicates a cyclic dependency */
3612 g_error ("pending init %s.%s\n", class->name_space, class->name);
3615 class->init_pending = 1;
3617 /* CAS - SecurityAction.InheritanceDemand */
3618 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
3619 mono_secman_inheritancedemand_class (class, class->parent);
3622 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3623 check_core_clr_inheritance (class);
3625 mono_stats.initialized_class_count++;
3627 if (class->generic_class && !class->generic_class->is_dynamic) {
3628 MonoClass *gklass = class->generic_class->container_class;
3630 mono_stats.generic_class_count++;
3632 class->method = gklass->method;
3633 class->field = gklass->field;
3635 mono_class_init (gklass);
3636 mono_class_setup_methods (gklass);
3637 mono_class_setup_properties (gklass);
3639 if (MONO_CLASS_IS_INTERFACE (class))
3640 class->interface_id = mono_get_unique_iid (class);
3642 g_assert (class->interface_count == gklass->interface_count);
3645 if (class->parent && !class->parent->inited)
3646 mono_class_init (class->parent);
3648 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
3650 if (!class->generic_class && !class->image->dynamic && (!has_cached_info || (has_cached_info && cached_info.has_nested_classes))) {
3651 i = mono_metadata_nesting_typedef (class->image, class->type_token, 1);
3654 guint32 cols [MONO_NESTED_CLASS_SIZE];
3655 mono_metadata_decode_row (&class->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
3656 nclass = mono_class_create_from_typedef (class->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
3657 class->nested_classes = g_list_prepend_mempool (class->nested_classes, class->image->mempool, nclass);
3659 i = mono_metadata_nesting_typedef (class->image, class->type_token, i + 1);
3664 * Computes the size used by the fields, and their locations
3666 if (has_cached_info) {
3667 class->instance_size = cached_info.instance_size;
3668 class->sizes.class_size = cached_info.class_size;
3669 class->packing_size = cached_info.packing_size;
3670 class->min_align = cached_info.min_align;
3671 class->blittable = cached_info.blittable;
3672 class->has_references = cached_info.has_references;
3673 class->has_static_refs = cached_info.has_static_refs;
3674 class->no_special_static_fields = cached_info.no_special_static_fields;
3677 if (!class->size_inited){
3678 mono_class_setup_fields (class);
3679 if (class->exception_type || mono_loader_get_last_error ()){
3680 class_init_ok = FALSE;
3685 /* Initialize arrays */
3687 class->method.count = 3 + (class->rank > 1? 2: 1);
3689 if (class->interface_count) {
3690 int count_generic = generic_array_methods (class);
3691 class->method.count += class->interface_count * count_generic;
3695 mono_class_setup_supertypes (class);
3698 initialize_object_slots (class);
3701 * Initialize the rest of the data without creating a generic vtable if possible.
3702 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
3703 * also avoid computing a generic vtable.
3705 if (has_cached_info) {
3707 class->vtable_size = cached_info.vtable_size;
3708 class->has_finalize = cached_info.has_finalize;
3709 class->ghcimpl = cached_info.ghcimpl;
3710 class->has_cctor = cached_info.has_cctor;
3711 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
3712 static int szarray_vtable_size = 0;
3715 if (!szarray_vtable_size) {
3716 mono_class_setup_vtable (class);
3717 szarray_vtable_size = class->vtable_size;
3719 class->vtable_size = szarray_vtable_size;
3721 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
3722 MonoClass *gklass = class->generic_class->container_class;
3724 /* Generic instance case */
3725 class->ghcimpl = gklass->ghcimpl;
3726 class->has_finalize = gklass->has_finalize;
3727 class->has_cctor = gklass->has_cctor;
3729 mono_class_setup_vtable (gklass);
3730 if (gklass->exception_type)
3733 class->vtable_size = gklass->vtable_size;
3737 /* ghcimpl is not currently used
3739 if (class->parent) {
3740 MonoMethod *cmethod = class->vtable [ghc_slot];
3741 if (cmethod->is_inflated)
3742 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3743 if (cmethod == default_ghc) {
3749 if (!MONO_CLASS_IS_INTERFACE (class)) {
3750 MonoMethod *cmethod = NULL;
3752 if (class->type_token) {
3753 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
3754 } else if (class->parent) {
3755 /* FIXME: Optimize this */
3756 mono_class_setup_vtable (class);
3757 if (class->exception_type || mono_loader_get_last_error ())
3759 cmethod = class->vtable [finalize_slot];
3763 /* Check that this is really the finalizer method */
3764 mono_class_setup_vtable (class);
3765 if (class->exception_type || mono_loader_get_last_error ())
3768 class->has_finalize = 0;
3769 if (class->parent) {
3770 cmethod = class->vtable [finalize_slot];
3771 if (cmethod->is_inflated)
3772 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3773 if (cmethod != default_finalize) {
3774 class->has_finalize = 1;
3780 /* C# doesn't allow interfaces to have cctors */
3781 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
3782 MonoMethod *cmethod = NULL;
3784 if (class->type_token) {
3785 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
3786 /* The find_method function ignores the 'flags' argument */
3787 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
3788 class->has_cctor = 1;
3790 mono_class_setup_methods (class);
3792 for (i = 0; i < class->method.count; ++i) {
3793 MonoMethod *method = class->methods [i];
3794 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3795 (strcmp (".cctor", method->name) == 0)) {
3796 class->has_cctor = 1;
3804 if (!mono_setup_vtable_in_class_init) {
3806 * This is an embedding API break, since the caller might assume that
3807 * mono_class_init () constructs a generic vtable, so vtable construction errors
3808 * are visible right after the mono_class_init (), and not after
3809 * mono_class_vtable ().
3811 if (class->parent) {
3812 /* This will compute class->parent->vtable_size for some classes */
3813 mono_class_init (class->parent);
3814 if (class->parent->exception_type || mono_loader_get_last_error ())
3816 if (!class->parent->vtable_size) {
3817 /* FIXME: Get rid of this somehow */
3818 mono_class_setup_vtable (class->parent);
3819 if (class->parent->exception_type || mono_loader_get_last_error ())
3822 setup_interface_offsets (class, class->parent->vtable_size);
3824 setup_interface_offsets (class, 0);
3827 mono_class_setup_vtable (class);
3829 if (MONO_CLASS_IS_INTERFACE (class))
3830 setup_interface_offsets (class, 0);
3833 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
3834 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image->mempool, class->name, class->image->assembly_name));
3835 class_init_ok = FALSE;
3841 class_init_ok = FALSE;
3844 /* Because of the double-checking locking pattern */
3845 mono_memory_barrier ();
3847 class->init_pending = 0;
3849 if (mono_loader_get_last_error ()) {
3850 if (class->exception_type == MONO_EXCEPTION_NONE)
3851 set_failure_from_loader_error (class, mono_loader_get_last_error ());
3853 mono_loader_clear_error ();
3856 mono_loader_unlock ();
3858 if (mono_debugger_class_init_func)
3859 mono_debugger_class_init_func (class);
3861 return class_init_ok;
3865 is_corlib_image (MonoImage *image)
3867 /* FIXME: allow the dynamic case for our compilers and with full trust */
3869 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
3871 return image == mono_defaults.corlib;
3875 * LOCKING: this assumes the loader lock is held
3878 mono_class_setup_mono_type (MonoClass *class)
3880 const char *name = class->name;
3881 const char *nspace = class->name_space;
3882 gboolean is_corlib = is_corlib_image (class->image);
3884 class->this_arg.byref = 1;
3885 class->this_arg.data.klass = class;
3886 class->this_arg.type = MONO_TYPE_CLASS;
3887 class->byval_arg.data.klass = class;
3888 class->byval_arg.type = MONO_TYPE_CLASS;
3890 if (is_corlib && !strcmp (nspace, "System")) {
3891 if (!strcmp (name, "ValueType")) {
3893 * do not set the valuetype bit for System.ValueType.
3894 * class->valuetype = 1;
3896 class->blittable = TRUE;
3897 } else if (!strcmp (name, "Enum")) {
3899 * do not set the valuetype bit for System.Enum.
3900 * class->valuetype = 1;
3902 class->valuetype = 0;
3903 class->enumtype = 0;
3904 } else if (!strcmp (name, "Object")) {
3905 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
3906 } else if (!strcmp (name, "String")) {
3907 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
3908 } else if (!strcmp (name, "TypedReference")) {
3909 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
3913 if (class->valuetype) {
3914 int t = MONO_TYPE_VALUETYPE;
3916 if (is_corlib && !strcmp (nspace, "System")) {
3919 if (!strcmp (name, "Boolean")) {
3920 t = MONO_TYPE_BOOLEAN;
3921 } else if (!strcmp(name, "Byte")) {
3923 class->blittable = TRUE;
3927 if (!strcmp (name, "Char")) {
3932 if (!strcmp (name, "Double")) {
3934 class->blittable = TRUE;
3938 if (!strcmp (name, "Int32")) {
3940 class->blittable = TRUE;
3941 } else if (!strcmp(name, "Int16")) {
3943 class->blittable = TRUE;
3944 } else if (!strcmp(name, "Int64")) {
3946 class->blittable = TRUE;
3947 } else if (!strcmp(name, "IntPtr")) {
3949 class->blittable = TRUE;
3953 if (!strcmp (name, "Single")) {
3955 class->blittable = TRUE;
3956 } else if (!strcmp(name, "SByte")) {
3958 class->blittable = TRUE;
3962 if (!strcmp (name, "UInt32")) {
3964 class->blittable = TRUE;
3965 } else if (!strcmp(name, "UInt16")) {
3967 class->blittable = TRUE;
3968 } else if (!strcmp(name, "UInt64")) {
3970 class->blittable = TRUE;
3971 } else if (!strcmp(name, "UIntPtr")) {
3973 class->blittable = TRUE;
3977 if (!strcmp (name, "TypedReference")) {
3978 t = MONO_TYPE_TYPEDBYREF;
3979 class->blittable = TRUE;
3983 if (!strcmp (name, "Void")) {
3991 class->this_arg.type = class->byval_arg.type = t;
3994 if (MONO_CLASS_IS_INTERFACE (class))
3995 class->interface_id = mono_get_unique_iid (class);
4000 * LOCKING: this assumes the loader lock is held
4003 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
4005 gboolean system_namespace;
4006 gboolean is_corlib = is_corlib_image (class->image);
4008 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
4010 /* if root of the hierarchy */
4011 if (system_namespace && !strcmp (class->name, "Object")) {
4012 class->parent = NULL;
4013 class->instance_size = sizeof (MonoObject);
4016 if (!strcmp (class->name, "<Module>")) {
4017 class->parent = NULL;
4018 class->instance_size = 0;
4022 if (!MONO_CLASS_IS_INTERFACE (class)) {
4023 /* Imported COM Objects always derive from __ComObject. */
4024 if (MONO_CLASS_IS_IMPORT (class)) {
4025 mono_init_com_types ();
4026 if (parent == mono_defaults.object_class)
4027 parent = mono_defaults.com_object_class;
4030 /* set the parent to something useful and safe, but mark the type as broken */
4031 parent = mono_defaults.object_class;
4032 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4035 class->parent = parent;
4037 if (parent->generic_class && !parent->name) {
4039 * If the parent is a generic instance, we may get
4040 * called before it is fully initialized, especially
4041 * before it has its name.
4046 class->marshalbyref = parent->marshalbyref;
4047 class->contextbound = parent->contextbound;
4048 class->delegate = parent->delegate;
4049 if (MONO_CLASS_IS_IMPORT (class))
4050 class->is_com_object = 1;
4052 class->is_com_object = parent->is_com_object;
4054 if (system_namespace) {
4055 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
4056 class->marshalbyref = 1;
4058 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
4059 class->contextbound = 1;
4061 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
4062 class->delegate = 1;
4065 if (class->parent->enumtype || (is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
4066 (strcmp (class->parent->name_space, "System") == 0)))
4067 class->valuetype = 1;
4068 if (is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
4069 class->valuetype = class->enumtype = 1;
4071 /*class->enumtype = class->parent->enumtype; */
4072 mono_class_setup_supertypes (class);
4074 /* initialize com types if COM interfaces are present */
4075 if (MONO_CLASS_IS_IMPORT (class))
4076 mono_init_com_types ();
4077 class->parent = NULL;
4083 * mono_class_setup_supertypes:
4086 * Build the data structure needed to make fast type checks work.
4087 * This currently sets two fields in @class:
4088 * - idepth: distance between @class and System.Object in the type
4090 * - supertypes: array of classes: each element has a class in the hierarchy
4091 * starting from @class up to System.Object
4093 * LOCKING: this assumes the loader lock is held
4096 mono_class_setup_supertypes (MonoClass *class)
4100 if (class->supertypes)
4103 if (class->parent && !class->parent->supertypes)
4104 mono_class_setup_supertypes (class->parent);
4106 class->idepth = class->parent->idepth + 1;
4110 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
4111 class->supertypes = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoClass *) * ms);
4113 if (class->parent) {
4114 class->supertypes [class->idepth - 1] = class;
4115 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
4117 class->supertypes [0] = class;
4122 * mono_class_create_from_typedef:
4123 * @image: image where the token is valid
4124 * @type_token: typedef token
4126 * Create the MonoClass* representing the specified type token.
4127 * @type_token must be a TypeDef token.
4130 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
4132 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
4133 MonoClass *class, *parent = NULL;
4134 guint32 cols [MONO_TYPEDEF_SIZE];
4135 guint32 cols_next [MONO_TYPEDEF_SIZE];
4136 guint tidx = mono_metadata_token_index (type_token);
4137 MonoGenericContext *context = NULL;
4138 const char *name, *nspace;
4140 MonoClass **interfaces;
4141 guint32 field_last, method_last;
4142 guint32 nesting_tokeen;
4144 mono_loader_lock ();
4146 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
4147 mono_loader_unlock ();
4151 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
4153 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
4155 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4156 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4158 class = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
4161 class->name_space = nspace;
4163 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4165 class->image = image;
4166 class->type_token = type_token;
4167 class->flags = cols [MONO_TYPEDEF_FLAGS];
4169 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
4172 * Check whether we're a generic type definition.
4174 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
4175 if (class->generic_container) {
4176 class->generic_container->owner.klass = class;
4177 context = &class->generic_container->context;
4180 if (cols [MONO_TYPEDEF_EXTENDS]) {
4181 parent = mono_class_get_full (
4182 image, mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]), context);
4183 if (parent == NULL){
4184 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
4185 mono_loader_unlock ();
4186 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4191 /* do this early so it's available for interfaces in setup_mono_type () */
4192 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
4193 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
4195 mono_class_setup_parent (class, parent);
4197 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
4198 mono_class_setup_mono_type (class);
4200 if (!class->enumtype) {
4201 if (!mono_metadata_interfaces_from_typedef_full (
4202 image, type_token, &interfaces, &icount, context)){
4203 mono_loader_unlock ();
4204 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4208 class->interfaces = interfaces;
4209 class->interface_count = icount;
4212 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
4216 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
4220 class->cast_class = class->element_class = class;
4222 /*g_print ("Load class %s\n", name);*/
4225 * Compute the field and method lists
4227 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
4228 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
4230 if (tt->rows > tidx){
4231 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
4232 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
4233 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
4235 field_last = image->tables [MONO_TABLE_FIELD].rows;
4236 method_last = image->tables [MONO_TABLE_METHOD].rows;
4239 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
4240 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
4241 class->field.count = field_last - class->field.first;
4243 class->field.count = 0;
4245 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
4246 class->method.count = method_last - class->method.first;
4248 class->method.count = 0;
4250 /* reserve space to store vector pointer in arrays */
4251 if (!strcmp (nspace, "System") && !strcmp (name, "Array")) {
4252 class->instance_size += 2 * sizeof (gpointer);
4253 g_assert (class->field.count == 0);
4256 if (class->enumtype) {
4257 class->enum_basetype = mono_class_find_enum_basetype (class);
4258 if (!class->enum_basetype) {
4259 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4260 mono_loader_unlock ();
4263 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
4267 * If we're a generic type definition, load the constraints.
4268 * We must do this after the class has been constructed to make certain recursive scenarios
4271 if (class->generic_container)
4272 mono_metadata_load_generic_param_constraints (
4273 image, type_token, class->generic_container);
4275 mono_loader_unlock ();
4277 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4282 /** is klass Nullable<T>? */
4284 mono_class_is_nullable (MonoClass *klass)
4286 return klass->generic_class != NULL &&
4287 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
4291 /** if klass is T? return T */
4293 mono_class_get_nullable_param (MonoClass *klass)
4295 g_assert (mono_class_is_nullable (klass));
4296 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4300 * Create the `MonoClass' for an instantiation of a generic type.
4301 * We only do this if we actually need it.
4304 mono_generic_class_get_class (MonoGenericClass *gclass)
4306 MonoClass *klass, *gklass;
4309 mono_loader_lock ();
4310 if (gclass->cached_class) {
4311 mono_loader_unlock ();
4312 return gclass->cached_class;
4315 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
4316 klass = gclass->cached_class;
4318 gklass = gclass->container_class;
4320 if (gklass->nested_in) {
4322 * FIXME: the nested type context should include everything the
4323 * nesting context should have, but it may also have additional
4324 * generic parameters...
4326 MonoType *inflated = mono_class_inflate_generic_type (
4327 &gklass->nested_in->byval_arg, mono_generic_class_get_context (gclass));
4328 klass->nested_in = mono_class_from_mono_type (inflated);
4329 mono_metadata_free_type (inflated);
4332 klass->name = gklass->name;
4333 klass->name_space = gklass->name_space;
4335 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4337 klass->image = gklass->image;
4338 klass->flags = gklass->flags;
4339 klass->type_token = gklass->type_token;
4340 klass->field.count = gklass->field.count;
4341 klass->property.count = gklass->property.count;
4343 klass->generic_class = gclass;
4345 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
4346 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
4347 klass->this_arg.byref = TRUE;
4348 klass->enumtype = gklass->enumtype;
4349 klass->valuetype = gklass->valuetype;
4351 klass->cast_class = klass->element_class = klass;
4353 if (mono_class_is_nullable (klass))
4354 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
4356 klass->interface_count = gklass->interface_count;
4357 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
4358 for (i = 0; i < klass->interface_count; i++) {
4359 MonoType *it = &gklass->interfaces [i]->byval_arg;
4360 MonoType *inflated = mono_class_inflate_generic_type (it, mono_generic_class_get_context (gclass));
4361 klass->interfaces [i] = mono_class_from_mono_type (inflated);
4362 mono_metadata_free_type (inflated);
4366 * We're not interested in the nested classes of a generic instance.
4367 * We use the generic type definition to look for nested classes.
4369 klass->nested_classes = NULL;
4371 if (gklass->parent) {
4372 MonoType *inflated = mono_class_inflate_generic_type (
4373 &gklass->parent->byval_arg, mono_generic_class_get_context (gclass));
4375 klass->parent = mono_class_from_mono_type (inflated);
4376 mono_metadata_free_type (inflated);
4380 mono_class_setup_parent (klass, klass->parent);
4382 if (klass->enumtype) {
4383 klass->enum_basetype = gklass->enum_basetype;
4384 klass->cast_class = gklass->cast_class;
4387 if (gclass->is_dynamic) {
4390 mono_class_setup_supertypes (klass);
4392 if (klass->enumtype) {
4394 * For enums, gklass->fields might not been set, but instance_size etc. is
4395 * already set in mono_reflection_create_internal_class (). For non-enums,
4396 * these will be computed normally in mono_class_layout_fields ().
4398 klass->instance_size = gklass->instance_size;
4399 klass->sizes.class_size = gklass->sizes.class_size;
4400 klass->size_inited = 1;
4404 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4406 mono_loader_unlock ();
4412 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
4414 MonoClass *klass, **ptr;
4417 mono_loader_lock ();
4419 if (param->pklass) {
4420 mono_loader_unlock ();
4421 return param->pklass;
4424 if (!image && param->owner) {
4426 MonoMethod *method = param->owner->owner.method;
4427 image = (method && method->klass) ? method->klass->image : NULL;
4429 MonoClass *klass = param->owner->owner.klass;
4430 // FIXME: 'klass' should not be null
4431 // But, monodis creates GenericContainers without associating a owner to it
4432 image = klass ? klass->image : NULL;
4437 image = mono_defaults.corlib;
4439 klass = param->pklass = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
4442 klass->name = param->name;
4444 klass->name = mono_mempool_alloc0 (image->mempool, 16);
4445 sprintf ((char*)klass->name, is_mvar ? "!!%d" : "!%d", param->num);
4447 klass->name_space = "";
4448 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4450 for (count = 0, ptr = param->constraints; ptr && *ptr; ptr++, count++)
4454 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (param->constraints [0])) {
4455 klass->parent = param->constraints [0];
4457 } else if (param->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
4458 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
4460 klass->parent = mono_defaults.object_class;
4462 if (count - pos > 0) {
4463 klass->interface_count = count - pos;
4464 klass->interfaces = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass *) * (count - pos));
4465 for (i = pos; i < count; i++)
4466 klass->interfaces [i - pos] = param->constraints [i];
4470 image = mono_defaults.corlib;
4472 klass->image = image;
4474 klass->inited = TRUE;
4475 klass->cast_class = klass->element_class = klass;
4476 klass->enum_basetype = &klass->element_class->byval_arg;
4477 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
4479 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4480 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
4481 klass->this_arg.byref = TRUE;
4485 guint32 cols [MONO_GENERICPARAM_SIZE];
4486 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4489 if (is_mvar && param->owner->owner.method)
4490 i = mono_metadata_get_generic_param_row (image, param->owner->owner.method->token, &owner);
4491 else if (!is_mvar && param->owner->owner.klass)
4492 i = mono_metadata_get_generic_param_row (image, param->owner->owner.klass->type_token, &owner);
4495 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4497 if (cols [MONO_GENERICPARAM_NUMBER] == param->num) {
4498 klass->sizes.generic_param_token = i | MONO_TOKEN_GENERIC_PARAM;
4501 if (++i > tdef->rows)
4503 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4504 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
4508 mono_class_setup_supertypes (klass);
4510 mono_loader_unlock ();
4512 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4518 mono_ptr_class_get (MonoType *type)
4521 MonoClass *el_class;
4525 el_class = mono_class_from_mono_type (type);
4526 image = el_class->image;
4528 mono_loader_lock ();
4530 if (!image->ptr_cache)
4531 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4533 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
4534 mono_loader_unlock ();
4537 result = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
4539 result->parent = NULL; /* no parent for PTR types */
4540 result->name_space = el_class->name_space;
4541 name = g_strdup_printf ("%s*", el_class->name);
4542 result->name = mono_mempool_strdup (image->mempool, name);
4545 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4547 result->image = el_class->image;
4548 result->inited = TRUE;
4549 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4550 /* Can pointers get boxed? */
4551 result->instance_size = sizeof (gpointer);
4552 result->cast_class = result->element_class = el_class;
4553 result->enum_basetype = &result->element_class->byval_arg;
4554 result->blittable = TRUE;
4556 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
4557 result->this_arg.data.type = result->byval_arg.data.type = result->enum_basetype;
4558 result->this_arg.byref = TRUE;
4560 mono_class_setup_supertypes (result);
4562 g_hash_table_insert (image->ptr_cache, el_class, result);
4564 mono_loader_unlock ();
4566 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4572 mono_fnptr_class_get (MonoMethodSignature *sig)
4575 static GHashTable *ptr_hash = NULL;
4577 /* FIXME: These should be allocate from a mempool as well, but which one ? */
4579 mono_loader_lock ();
4582 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4584 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
4585 mono_loader_unlock ();
4588 result = g_new0 (MonoClass, 1);
4590 result->parent = NULL; /* no parent for PTR types */
4591 result->name_space = "System";
4592 result->name = "MonoFNPtrFakeClass";
4594 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4596 result->image = mono_defaults.corlib; /* need to fix... */
4597 result->inited = TRUE;
4598 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
4599 /* Can pointers get boxed? */
4600 result->instance_size = sizeof (gpointer);
4601 result->cast_class = result->element_class = result;
4602 result->blittable = TRUE;
4604 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
4605 result->this_arg.data.method = result->byval_arg.data.method = sig;
4606 result->this_arg.byref = TRUE;
4607 result->enum_basetype = &result->element_class->byval_arg;
4608 result->blittable = TRUE;
4610 mono_class_setup_supertypes (result);
4612 g_hash_table_insert (ptr_hash, sig, result);
4614 mono_loader_unlock ();
4616 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4622 mono_class_from_mono_type (MonoType *type)
4624 switch (type->type) {
4625 case MONO_TYPE_OBJECT:
4626 return type->data.klass? type->data.klass: mono_defaults.object_class;
4627 case MONO_TYPE_VOID:
4628 return type->data.klass? type->data.klass: mono_defaults.void_class;
4629 case MONO_TYPE_BOOLEAN:
4630 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
4631 case MONO_TYPE_CHAR:
4632 return type->data.klass? type->data.klass: mono_defaults.char_class;
4634 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
4636 return type->data.klass? type->data.klass: mono_defaults.byte_class;
4638 return type->data.klass? type->data.klass: mono_defaults.int16_class;
4640 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
4642 return type->data.klass? type->data.klass: mono_defaults.int32_class;
4644 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
4646 return type->data.klass? type->data.klass: mono_defaults.int_class;
4648 return type->data.klass? type->data.klass: mono_defaults.uint_class;
4650 return type->data.klass? type->data.klass: mono_defaults.int64_class;
4652 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
4654 return type->data.klass? type->data.klass: mono_defaults.single_class;
4656 return type->data.klass? type->data.klass: mono_defaults.double_class;
4657 case MONO_TYPE_STRING:
4658 return type->data.klass? type->data.klass: mono_defaults.string_class;
4659 case MONO_TYPE_TYPEDBYREF:
4660 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
4661 case MONO_TYPE_ARRAY:
4662 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
4664 return mono_ptr_class_get (type->data.type);
4665 case MONO_TYPE_FNPTR:
4666 return mono_fnptr_class_get (type->data.method);
4667 case MONO_TYPE_SZARRAY:
4668 return mono_array_class_get (type->data.klass, 1);
4669 case MONO_TYPE_CLASS:
4670 case MONO_TYPE_VALUETYPE:
4671 return type->data.klass;
4672 case MONO_TYPE_GENERICINST:
4673 return mono_generic_class_get_class (type->data.generic_class);
4675 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
4676 case MONO_TYPE_MVAR:
4677 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
4679 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
4680 g_assert_not_reached ();
4687 * mono_type_retrieve_from_typespec
4688 * @image: context where the image is created
4689 * @type_spec: typespec token
4690 * @context: the generic context used to evaluate generic instantiations in
4693 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate)
4695 MonoType *t = mono_type_create_from_typespec (image, type_spec);
4698 if (context && (context->class_inst || context->method_inst)) {
4699 MonoType *inflated = inflate_generic_type (NULL, t, context);
4702 *did_inflate = TRUE;
4709 * mono_class_create_from_typespec
4710 * @image: context where the image is created
4711 * @type_spec: typespec token
4712 * @context: the generic context used to evaluate generic instantiations in
4715 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
4718 gboolean inflated = FALSE;
4719 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated);
4722 ret = mono_class_from_mono_type (t);
4724 mono_metadata_free_type (t);
4729 * mono_bounded_array_class_get:
4730 * @element_class: element class
4731 * @rank: the dimension of the array class
4732 * @bounded: whenever the array has non-zero bounds
4734 * Returns: a class object describing the array with element type @element_type and
4738 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
4742 MonoClass *parent = NULL;
4743 GSList *list, *rootlist;
4746 gboolean corlib_type = FALSE;
4748 g_assert (rank <= 255);
4751 /* bounded only matters for one-dimensional arrays */
4754 image = eclass->image;
4756 mono_loader_lock ();
4758 if (!image->array_cache)
4759 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4761 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
4762 for (; list; list = list->next) {
4764 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
4765 mono_loader_unlock ();
4771 /* for the building corlib use System.Array from it */
4772 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
4773 parent = mono_class_from_name (image, "System", "Array");
4776 parent = mono_defaults.array_class;
4777 if (!parent->inited)
4778 mono_class_init (parent);
4781 class = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
4783 class->image = image;
4784 class->name_space = eclass->name_space;
4785 nsize = strlen (eclass->name);
4786 name = g_malloc (nsize + 2 + rank + 1);
4787 memcpy (name, eclass->name, nsize);
4790 memset (name + nsize + 1, ',', rank - 1);
4792 name [nsize + rank] = '*';
4793 name [nsize + rank + bounded] = ']';
4794 name [nsize + rank + bounded + 1] = 0;
4795 class->name = mono_mempool_strdup (image->mempool, name);
4798 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4800 class->type_token = 0;
4801 /* all arrays are marked serializable and sealed, bug #42779 */
4802 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
4803 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4804 class->parent = parent;
4805 class->instance_size = mono_class_instance_size (class->parent);
4807 if (eclass->enumtype && !eclass->enum_basetype) {
4808 if (!eclass->reflection_info || eclass->wastypebuilder) {
4809 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
4810 g_assert (eclass->reflection_info && !eclass->wastypebuilder);
4812 /* element_size -1 is ok as this is not an instantitable type*/
4813 class->sizes.element_size = -1;
4815 class->sizes.element_size = mono_class_array_element_size (eclass);
4817 mono_class_setup_supertypes (class);
4819 if (mono_defaults.generic_ilist_class && !bounded && rank == 1) {
4822 /* generic IList, ICollection, IEnumerable */
4823 class->interface_count = 1;
4824 class->interfaces = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass*) * class->interface_count);
4826 args [0] = &eclass->byval_arg;
4827 class->interfaces [0] = mono_class_bind_generic_parameters (
4828 mono_defaults.generic_ilist_class, 1, args, FALSE);
4831 if (eclass->generic_class)
4832 mono_class_init (eclass);
4833 if (!eclass->size_inited)
4834 mono_class_setup_fields (eclass);
4835 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
4839 if (eclass->enumtype)
4840 class->cast_class = eclass->element_class;
4842 class->cast_class = eclass;
4844 class->element_class = eclass;
4846 if ((rank > 1) || bounded) {
4847 MonoArrayType *at = mono_mempool_alloc0 (image->mempool, sizeof (MonoArrayType));
4848 class->byval_arg.type = MONO_TYPE_ARRAY;
4849 class->byval_arg.data.array = at;
4850 at->eklass = eclass;
4852 /* FIXME: complete.... */
4854 class->byval_arg.type = MONO_TYPE_SZARRAY;
4855 class->byval_arg.data.klass = eclass;
4857 class->this_arg = class->byval_arg;
4858 class->this_arg.byref = 1;
4863 class->generic_container = eclass->generic_container;
4865 list = g_slist_append (rootlist, class);
4866 g_hash_table_insert (image->array_cache, eclass, list);
4868 mono_loader_unlock ();
4870 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4876 * mono_array_class_get:
4877 * @element_class: element class
4878 * @rank: the dimension of the array class
4880 * Returns: a class object describing the array with element type @element_type and
4884 mono_array_class_get (MonoClass *eclass, guint32 rank)
4886 return mono_bounded_array_class_get (eclass, rank, FALSE);
4890 * mono_class_instance_size:
4893 * Returns: the size of an object instance
4896 mono_class_instance_size (MonoClass *klass)
4898 if (!klass->size_inited)
4899 mono_class_init (klass);
4901 return klass->instance_size;
4905 * mono_class_min_align:
4908 * Returns: minimm alignment requirements
4911 mono_class_min_align (MonoClass *klass)
4913 if (!klass->size_inited)
4914 mono_class_init (klass);
4916 return klass->min_align;
4920 * mono_class_value_size:
4923 * This function is used for value types, and return the
4924 * space and the alignment to store that kind of value object.
4926 * Returns: the size of a value of kind @klass
4929 mono_class_value_size (MonoClass *klass, guint32 *align)
4933 /* fixme: check disable, because we still have external revereces to
4934 * mscorlib and Dummy Objects
4936 /*g_assert (klass->valuetype);*/
4938 size = mono_class_instance_size (klass) - sizeof (MonoObject);
4941 *align = klass->min_align;
4947 * mono_class_data_size:
4950 * Returns: the size of the static class data
4953 mono_class_data_size (MonoClass *klass)
4956 mono_class_init (klass);
4958 /* in arrays, sizes.class_size is unioned with element_size
4959 * and arrays have no static fields
4963 return klass->sizes.class_size;
4967 * Auxiliary routine to mono_class_get_field
4969 * Takes a field index instead of a field token.
4971 static MonoClassField *
4972 mono_class_get_field_idx (MonoClass *class, int idx)
4974 mono_class_setup_fields_locking (class);
4977 if (class->image->uncompressed_metadata) {
4979 * class->field.first points to the FieldPtr table, while idx points into the
4980 * Field table, so we have to do a search.
4982 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
4985 for (i = 0; i < class->field.count; ++i)
4986 if (class->fields [i].name == name)
4987 return &class->fields [i];
4988 g_assert_not_reached ();
4990 if (class->field.count) {
4991 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
4992 return &class->fields [idx - class->field.first];
4996 class = class->parent;
5002 * mono_class_get_field:
5003 * @class: the class to lookup the field.
5004 * @field_token: the field token
5006 * Returns: A MonoClassField representing the type and offset of
5007 * the field, or a NULL value if the field does not belong to this
5011 mono_class_get_field (MonoClass *class, guint32 field_token)
5013 int idx = mono_metadata_token_index (field_token);
5015 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
5017 return mono_class_get_field_idx (class, idx - 1);
5021 * mono_class_get_field_from_name:
5022 * @klass: the class to lookup the field.
5023 * @name: the field name
5025 * Search the class @klass and it's parents for a field with the name @name.
5027 * Returns: the MonoClassField pointer of the named field or NULL
5030 mono_class_get_field_from_name (MonoClass *klass, const char *name)
5034 mono_class_setup_fields_locking (klass);
5036 for (i = 0; i < klass->field.count; ++i) {
5037 if (strcmp (name, klass->fields [i].name) == 0)
5038 return &klass->fields [i];
5040 klass = klass->parent;
5046 * mono_class_get_field_token:
5047 * @field: the field we need the token of
5049 * Get the token of a field. Note that the tokesn is only valid for the image
5050 * the field was loaded from. Don't use this function for fields in dynamic types.
5052 * Returns: the token representing the field in the image it was loaded from.
5055 mono_class_get_field_token (MonoClassField *field)
5057 MonoClass *klass = field->parent;
5060 mono_class_setup_fields_locking (klass);
5062 for (i = 0; i < klass->field.count; ++i) {
5063 if (&klass->fields [i] == field) {
5064 int idx = klass->field.first + i + 1;
5066 if (klass->image->uncompressed_metadata)
5067 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
5068 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
5071 klass = klass->parent;
5074 g_assert_not_reached ();
5079 * mono_class_get_field_default_value:
5081 * Return the default value of the field as a pointer into the metadata blob.
5084 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
5087 guint32 constant_cols [MONO_CONSTANT_SIZE];
5089 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
5092 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
5094 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
5096 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
5097 field->def_type = constant_cols [MONO_CONSTANT_TYPE];
5098 field->data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
5101 *def_type = field->def_type;
5106 mono_class_get_event_token (MonoEvent *event)
5108 MonoClass *klass = event->parent;
5112 for (i = 0; i < klass->event.count; ++i) {
5113 if (&klass->events [i] == event)
5114 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->event.first + i + 1);
5116 klass = klass->parent;
5119 g_assert_not_reached ();
5124 mono_class_get_property_from_name (MonoClass *klass, const char *name)
5128 gpointer iter = NULL;
5129 while ((p = mono_class_get_properties (klass, &iter))) {
5130 if (! strcmp (name, p->name))
5133 klass = klass->parent;
5139 mono_class_get_property_token (MonoProperty *prop)
5141 MonoClass *klass = prop->parent;
5145 gpointer iter = NULL;
5146 while ((p = mono_class_get_properties (klass, &iter))) {
5147 if (&klass->properties [i] == prop)
5148 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->property.first + i + 1);
5152 klass = klass->parent;
5155 g_assert_not_reached ();
5160 mono_class_name_from_token (MonoImage *image, guint32 type_token)
5162 const char *name, *nspace;
5164 return g_strdup_printf ("DynamicType 0x%08x", type_token);
5166 switch (type_token & 0xff000000){
5167 case MONO_TOKEN_TYPE_DEF: {
5168 guint32 cols [MONO_TYPEDEF_SIZE];
5169 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5170 guint tidx = mono_metadata_token_index (type_token);
5172 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5173 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5174 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5175 if (strlen (nspace) == 0)
5176 return g_strdup_printf ("%s", name);
5178 return g_strdup_printf ("%s.%s", nspace, name);
5181 case MONO_TOKEN_TYPE_REF: {
5182 guint32 cols [MONO_TYPEREF_SIZE];
5183 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5185 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5186 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
5187 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
5188 if (strlen (nspace) == 0)
5189 return g_strdup_printf ("%s", name);
5191 return g_strdup_printf ("%s.%s", nspace, name);
5194 case MONO_TOKEN_TYPE_SPEC:
5195 return g_strdup_printf ("Typespec 0x%08x", type_token);
5197 g_assert_not_reached ();
5204 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
5207 return g_strdup_printf ("DynamicAssembly %s", image->name);
5209 switch (type_token & 0xff000000){
5210 case MONO_TOKEN_TYPE_DEF:
5211 return mono_stringify_assembly_name (&image->assembly->aname);
5213 case MONO_TOKEN_TYPE_REF: {
5214 MonoAssemblyName aname;
5215 guint32 cols [MONO_TYPEREF_SIZE];
5216 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5219 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5221 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
5222 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
5223 case MONO_RESOLTION_SCOPE_MODULE:
5225 return g_strdup ("");
5226 case MONO_RESOLTION_SCOPE_MODULEREF:
5228 return g_strdup ("");
5229 case MONO_RESOLTION_SCOPE_TYPEREF:
5231 return g_strdup ("");
5232 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
5233 mono_assembly_get_assemblyref (image, idx - 1, &aname);
5234 return mono_stringify_assembly_name (&aname);
5236 g_assert_not_reached ();
5240 case MONO_TOKEN_TYPE_SPEC:
5242 return g_strdup ("");
5244 g_assert_not_reached ();
5251 * mono_class_get_full:
5252 * @image: the image where the class resides
5253 * @type_token: the token for the class
5254 * @context: the generic context used to evaluate generic instantiations in
5256 * Returns: the MonoClass that represents @type_token in @image
5259 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5261 MonoClass *class = NULL;
5263 if (image->dynamic) {
5264 int table = mono_metadata_token_table (type_token);
5266 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
5267 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
5270 return mono_lookup_dynamic_token (image, type_token, context);
5273 switch (type_token & 0xff000000){
5274 case MONO_TOKEN_TYPE_DEF:
5275 class = mono_class_create_from_typedef (image, type_token);
5277 case MONO_TOKEN_TYPE_REF:
5278 class = mono_class_from_typeref (image, type_token);
5280 case MONO_TOKEN_TYPE_SPEC:
5281 class = mono_class_create_from_typespec (image, type_token, context);
5284 g_warning ("unknown token type %x", type_token & 0xff000000);
5285 g_assert_not_reached ();
5289 char *name = mono_class_name_from_token (image, type_token);
5290 char *assembly = mono_assembly_name_from_token (image, type_token);
5291 mono_loader_set_error_type_load (name, assembly);
5299 * mono_type_get_full:
5300 * @image: the image where the type resides
5301 * @type_token: the token for the type
5302 * @context: the generic context used to evaluate generic instantiations in
5304 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
5306 * Returns: the MonoType that represents @type_token in @image
5309 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5311 MonoType *type = NULL;
5312 gboolean inflated = FALSE;
5314 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
5316 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
5318 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
5319 MonoClass *class = mono_class_get_full (image, type_token, context);
5320 return class ? mono_class_get_type (class) : NULL;
5323 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated);
5326 char *name = mono_class_name_from_token (image, type_token);
5327 char *assembly = mono_assembly_name_from_token (image, type_token);
5329 mono_metadata_free_type (type);
5330 mono_loader_set_error_type_load (name, assembly);
5334 MonoType *tmp = type;
5335 type = mono_class_get_type (mono_class_from_mono_type (type));
5336 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
5337 * A MonoClass::byval_arg of a generic type definion has type CLASS.
5338 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
5340 * The long term solution is to chaise this places and make then set MonoType::type correctly.
5342 if (type->type != tmp->type)
5345 mono_metadata_free_type (tmp);
5352 mono_class_get (MonoImage *image, guint32 type_token)
5354 return mono_class_get_full (image, type_token, NULL);
5358 * mono_image_init_name_cache:
5360 * Initializes the class name cache stored in image->name_cache.
5362 * LOCKING: Acquires the loader lock.
5365 mono_image_init_name_cache (MonoImage *image)
5367 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5368 guint32 cols [MONO_TYPEDEF_SIZE];
5371 guint32 i, visib, nspace_index;
5372 GHashTable *name_cache2, *nspace_table;
5374 mono_loader_lock ();
5376 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
5378 if (image->dynamic) {
5379 mono_loader_unlock ();
5383 /* Temporary hash table to avoid lookups in the nspace_table */
5384 name_cache2 = g_hash_table_new (NULL, NULL);
5386 for (i = 1; i <= t->rows; ++i) {
5387 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5388 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5390 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5391 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5393 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5395 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5396 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5398 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
5399 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5400 if (!nspace_table) {
5401 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5402 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5403 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5406 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
5409 /* Load type names from EXPORTEDTYPES table */
5411 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5412 guint32 cols [MONO_EXP_TYPE_SIZE];
5415 for (i = 0; i < t->rows; ++i) {
5416 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
5417 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
5418 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
5420 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
5421 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5422 if (!nspace_table) {
5423 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5424 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5425 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5428 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
5432 g_hash_table_destroy (name_cache2);
5434 mono_loader_unlock ();
5438 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
5439 const char *name, guint32 index)
5441 GHashTable *nspace_table;
5442 GHashTable *name_cache;
5444 mono_loader_lock ();
5446 if (!image->name_cache)
5447 mono_image_init_name_cache (image);
5449 name_cache = image->name_cache;
5450 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
5451 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5452 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
5454 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
5456 mono_loader_unlock ();
5465 find_nocase (gpointer key, gpointer value, gpointer user_data)
5467 char *name = (char*)key;
5468 FindUserData *data = (FindUserData*)user_data;
5470 if (!data->value && (g_strcasecmp (name, (char*)data->key) == 0))
5471 data->value = value;
5475 * mono_class_from_name_case:
5476 * @image: The MonoImage where the type is looked up in
5477 * @name_space: the type namespace
5478 * @name: the type short name.
5480 * Obtains a MonoClass with a given namespace and a given name which
5481 * is located in the given MonoImage. The namespace and name
5482 * lookups are case insensitive.
5485 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
5487 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5488 guint32 cols [MONO_TYPEDEF_SIZE];
5493 if (image->dynamic) {
5495 FindUserData user_data;
5497 mono_loader_lock ();
5499 if (!image->name_cache)
5500 mono_image_init_name_cache (image);
5502 user_data.key = name_space;
5503 user_data.value = NULL;
5504 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
5506 if (user_data.value) {
5507 GHashTable *nspace_table = (GHashTable*)user_data.value;
5509 user_data.key = name;
5510 user_data.value = NULL;
5512 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
5514 if (user_data.value)
5515 token = GPOINTER_TO_UINT (user_data.value);
5518 mono_loader_unlock ();
5521 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
5527 /* add a cache if needed */
5528 for (i = 1; i <= t->rows; ++i) {
5529 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5530 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5532 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5533 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5535 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5537 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5538 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5539 if (g_strcasecmp (n, name) == 0 && g_strcasecmp (nspace, name_space) == 0)
5540 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
5546 return_nested_in (MonoClass *class, char *nested) {
5548 char *s = strchr (nested, '/');
5555 for (tmp = class->nested_classes; tmp; tmp = tmp->next) {
5557 if (strcmp (found->name, nested) == 0) {
5559 return return_nested_in (found, s);
5568 * mono_class_from_name:
5569 * @image: The MonoImage where the type is looked up in
5570 * @name_space: the type namespace
5571 * @name: the type short name.
5573 * Obtains a MonoClass with a given namespace and a given name which
5574 * is located in the given MonoImage.
5577 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
5579 GHashTable *nspace_table;
5580 MonoImage *loaded_image;
5587 if ((nested = strchr (name, '/'))) {
5588 int pos = nested - name;
5589 int len = strlen (name);
5592 memcpy (buf, name, len + 1);
5594 nested = buf + pos + 1;
5598 if (get_class_from_name) {
5599 gboolean res = get_class_from_name (image, name_space, name, &class);
5602 return class ? return_nested_in (class, nested) : NULL;
5608 mono_loader_lock ();
5610 if (!image->name_cache)
5611 mono_image_init_name_cache (image);
5613 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
5616 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
5618 mono_loader_unlock ();
5620 if (!token && image->dynamic && image->modules) {
5621 /* Search modules as well */
5622 for (i = 0; i < image->module_count; ++i) {
5623 MonoImage *module = image->modules [i];
5625 class = mono_class_from_name (module, name_space, name);
5633 * The EXPORTEDTYPES table only contains public types, so have to search the
5635 * Note: image->modules contains the contents of the MODULEREF table, while
5636 * the real module list is in the FILE table.
5638 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
5639 MonoImage *file_image;
5641 for (i = 0; i < file_table->rows; i++) {
5642 guint32 cols [MONO_FILE_SIZE];
5643 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
5644 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
5647 file_image = mono_image_load_file_for_image (image, i + 1);
5649 class = mono_class_from_name (file_image, name_space, name);
5659 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
5660 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5661 guint32 cols [MONO_EXP_TYPE_SIZE];
5664 idx = mono_metadata_token_index (token);
5666 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
5668 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
5669 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
5670 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
5673 class = mono_class_from_name (loaded_image, name_space, name);
5675 return return_nested_in (class, nested);
5677 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
5678 MonoAssembly **references = image->references;
5679 if (!references [idx - 1])
5680 mono_assembly_load_reference (image, idx - 1);
5681 g_assert (references == image->references);
5682 g_assert (references [idx - 1]);
5683 if (references [idx - 1] == (gpointer)-1)
5686 /* FIXME: Cycle detection */
5687 return mono_class_from_name (references [idx - 1]->image, name_space, name);
5689 g_error ("not yet implemented");
5693 token = MONO_TOKEN_TYPE_DEF | token;
5695 class = mono_class_get (image, token);
5697 return return_nested_in (class, nested);
5702 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
5703 gboolean check_interfaces)
5705 g_assert (klassc->idepth > 0);
5706 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
5707 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
5709 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
5712 for (i = 0; i < klass->interface_count; i ++) {
5713 MonoClass *ic = klass->interfaces [i];
5718 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
5723 * MS.NET thinks interfaces are a subclass of Object, so we think it as
5726 if (klassc == mono_defaults.object_class)
5733 mono_class_has_variant_generic_params (MonoClass *klass)
5736 MonoGenericContainer *container;
5738 if (!klass->generic_class)
5741 container = klass->generic_class->container_class->generic_container;
5743 for (i = 0; i < container->type_argc; ++i)
5744 if (container->type_params [i].flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
5751 * mono_class_is_assignable_from:
5752 * @klass: the class to be assigned to
5753 * @oklass: the source class
5755 * Return: true if an instance of object oklass can be assigned to an
5756 * instance of object @klass
5759 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
5762 mono_class_init (klass);
5764 if (!oklass->inited)
5765 mono_class_init (oklass);
5767 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
5768 return klass == oklass;
5770 if (MONO_CLASS_IS_INTERFACE (klass)) {
5771 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
5774 /* interface_offsets might not be set for dynamic classes */
5775 if (oklass->reflection_info && !oklass->interface_bitmap)
5777 * oklass might be a generic type parameter but they have
5778 * interface_offsets set.
5780 return mono_reflection_call_is_assignable_to (oklass, klass);
5782 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
5785 if (mono_class_has_variant_generic_params (klass)) {
5786 if (oklass->generic_class) {
5788 gboolean match = FALSE;
5789 MonoClass *container_class1 = klass->generic_class->container_class;
5790 MonoClass *container_class2 = oklass->generic_class->container_class;
5793 * Check whenever the generic definition of oklass implements the
5794 * generic definition of klass. The IMPLEMENTS_INTERFACE stuff is not usable
5795 * here since the relevant tables are not set up.
5797 for (i = 0; i < container_class2->interface_offsets_count; ++i)
5798 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)))
5802 MonoGenericContainer *container;
5804 container = klass->generic_class->container_class->generic_container;
5807 for (i = 0; i < container->type_argc; ++i) {
5808 MonoClass *param1_class = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [i]);
5809 MonoClass *param2_class = mono_class_from_mono_type (oklass->generic_class->context.class_inst->type_argv [i]);
5811 if (param1_class->valuetype != param2_class->valuetype) {
5816 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
5817 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
5819 if (param1_class != param2_class) {
5820 if ((container->type_params [i].flags & MONO_GEN_PARAM_VARIANT) && mono_class_is_assignable_from (param1_class, param2_class))
5822 else if (((container->type_params [i].flags & MONO_GEN_PARAM_COVARIANT) && mono_class_is_assignable_from (param2_class, param1_class)))
5836 } else if (klass->rank) {
5837 MonoClass *eclass, *eoclass;
5839 if (oklass->rank != klass->rank)
5842 /* vectors vs. one dimensional arrays */
5843 if (oklass->byval_arg.type != klass->byval_arg.type)
5846 eclass = klass->cast_class;
5847 eoclass = oklass->cast_class;
5850 * a is b does not imply a[] is b[] when a is a valuetype, and
5851 * b is a reference type.
5854 if (eoclass->valuetype) {
5855 if ((eclass == mono_defaults.enum_class) ||
5856 (eclass == mono_defaults.enum_class->parent) ||
5857 (eclass == mono_defaults.object_class))
5861 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
5862 } else if (mono_class_is_nullable (klass))
5863 return (mono_class_is_assignable_from (klass->cast_class, oklass));
5864 else if (klass == mono_defaults.object_class)
5867 return mono_class_has_parent (oklass, klass);
5871 * mono_class_get_cctor:
5872 * @klass: A MonoClass pointer
5874 * Returns: the static constructor of @klass if it exists, NULL otherwise.
5877 mono_class_get_cctor (MonoClass *klass)
5879 MonoCachedClassInfo cached_info;
5881 if (!klass->has_cctor)
5884 if (mono_class_get_cached_class_info (klass, &cached_info))
5885 return mono_get_method (klass->image, cached_info.cctor_token, klass);
5887 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
5891 * mono_class_get_finalizer:
5892 * @klass: The MonoClass pointer
5894 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
5897 mono_class_get_finalizer (MonoClass *klass)
5899 MonoCachedClassInfo cached_info;
5902 mono_class_init (klass);
5903 if (!klass->has_finalize)
5906 if (mono_class_get_cached_class_info (klass, &cached_info))
5907 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
5909 mono_class_setup_vtable (klass);
5910 return klass->vtable [finalize_slot];
5915 * mono_class_needs_cctor_run:
5916 * @klass: the MonoClass pointer
5917 * @caller: a MonoMethod describing the caller
5919 * Determines whenever the class has a static constructor and whenever it
5920 * needs to be called when executing CALLER.
5923 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
5927 method = mono_class_get_cctor (klass);
5929 return (method == caller) ? FALSE : TRUE;
5935 * mono_class_array_element_size:
5938 * Returns: the number of bytes an element of type @klass
5939 * uses when stored into an array.
5942 mono_class_array_element_size (MonoClass *klass)
5944 MonoType *type = &klass->byval_arg;
5947 switch (type->type) {
5950 case MONO_TYPE_BOOLEAN:
5954 case MONO_TYPE_CHAR:
5963 case MONO_TYPE_CLASS:
5964 case MONO_TYPE_STRING:
5965 case MONO_TYPE_OBJECT:
5966 case MONO_TYPE_SZARRAY:
5967 case MONO_TYPE_ARRAY:
5969 case MONO_TYPE_MVAR:
5970 return sizeof (gpointer);
5975 case MONO_TYPE_VALUETYPE:
5976 if (type->data.klass->enumtype) {
5977 type = type->data.klass->enum_basetype;
5978 klass = klass->element_class;
5981 return mono_class_instance_size (klass) - sizeof (MonoObject);
5982 case MONO_TYPE_GENERICINST:
5983 type = &type->data.generic_class->container_class->byval_arg;
5986 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
5992 * mono_array_element_size:
5993 * @ac: pointer to a #MonoArrayClass
5995 * Returns: the size of single array element.
5998 mono_array_element_size (MonoClass *ac)
6000 g_assert (ac->rank);
6001 return ac->sizes.element_size;
6005 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
6006 MonoGenericContext *context)
6008 if (image->dynamic) {
6009 MonoClass *tmp_handle_class;
6010 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
6012 g_assert (tmp_handle_class);
6014 *handle_class = tmp_handle_class;
6016 if (tmp_handle_class == mono_defaults.typehandle_class)
6017 return &((MonoClass*)obj)->byval_arg;
6022 switch (token & 0xff000000) {
6023 case MONO_TOKEN_TYPE_DEF:
6024 case MONO_TOKEN_TYPE_REF:
6025 case MONO_TOKEN_TYPE_SPEC: {
6028 *handle_class = mono_defaults.typehandle_class;
6029 type = mono_type_get_full (image, token, context);
6032 mono_class_init (mono_class_from_mono_type (type));
6033 /* We return a MonoType* as handle */
6036 case MONO_TOKEN_FIELD_DEF: {
6038 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
6040 *handle_class = mono_defaults.fieldhandle_class;
6041 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
6044 mono_class_init (class);
6045 return mono_class_get_field (class, token);
6047 case MONO_TOKEN_METHOD_DEF:
6048 case MONO_TOKEN_METHOD_SPEC: {
6050 meth = mono_get_method_full (image, token, NULL, context);
6052 *handle_class = mono_defaults.methodhandle_class;
6055 case MONO_TOKEN_MEMBER_REF: {
6056 guint32 cols [MONO_MEMBERREF_SIZE];
6058 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
6059 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
6060 mono_metadata_decode_blob_size (sig, &sig);
6061 if (*sig == 0x6) { /* it's a field */
6063 MonoClassField *field;
6064 field = mono_field_from_token (image, token, &klass, context);
6066 *handle_class = mono_defaults.fieldhandle_class;
6070 meth = mono_get_method_full (image, token, NULL, context);
6072 *handle_class = mono_defaults.methodhandle_class;
6077 g_warning ("Unknown token 0x%08x in ldtoken", token);
6084 * This function might need to call runtime functions so it can't be part
6085 * of the metadata library.
6087 static MonoLookupDynamicToken lookup_dynamic = NULL;
6090 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
6092 lookup_dynamic = func;
6096 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
6098 MonoClass *handle_class;
6100 return lookup_dynamic (image, token, TRUE, &handle_class, context);
6104 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
6106 return lookup_dynamic (image, token, valid_token, handle_class, context);
6109 static MonoGetCachedClassInfo get_cached_class_info = NULL;
6112 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
6114 get_cached_class_info = func;
6118 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
6120 if (!get_cached_class_info)
6123 return get_cached_class_info (klass, res);
6127 mono_install_get_class_from_name (MonoGetClassFromName func)
6129 get_class_from_name = func;
6133 mono_class_get_image (MonoClass *klass)
6135 return klass->image;
6139 * mono_class_get_element_class:
6140 * @klass: the MonoClass to act on
6142 * Returns: the element class of an array or an enumeration.
6145 mono_class_get_element_class (MonoClass *klass)
6147 return klass->element_class;
6151 * mono_class_is_valuetype:
6152 * @klass: the MonoClass to act on
6154 * Returns: true if the MonoClass represents a ValueType.
6157 mono_class_is_valuetype (MonoClass *klass)
6159 return klass->valuetype;
6163 * mono_class_is_enum:
6164 * @klass: the MonoClass to act on
6166 * Returns: true if the MonoClass represents an enumeration.
6169 mono_class_is_enum (MonoClass *klass)
6171 return klass->enumtype;
6175 * mono_class_enum_basetype:
6176 * @klass: the MonoClass to act on
6178 * Returns: the underlying type representation for an enumeration.
6181 mono_class_enum_basetype (MonoClass *klass)
6183 return klass->enum_basetype;
6187 * mono_class_get_parent
6188 * @klass: the MonoClass to act on
6190 * Returns: the parent class for this class.
6193 mono_class_get_parent (MonoClass *klass)
6195 return klass->parent;
6199 * mono_class_get_nesting_type;
6200 * @klass: the MonoClass to act on
6202 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
6205 mono_class_get_nesting_type (MonoClass *klass)
6207 return klass->nested_in;
6211 * mono_class_get_rank:
6212 * @klass: the MonoClass to act on
6214 * Returns: the rank for the array (the number of dimensions).
6217 mono_class_get_rank (MonoClass *klass)
6223 * mono_class_get_flags:
6224 * @klass: the MonoClass to act on
6226 * The type flags from the TypeDef table from the metadata.
6227 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
6230 * Returns: the flags from the TypeDef table.
6233 mono_class_get_flags (MonoClass *klass)
6235 return klass->flags;
6239 * mono_class_get_name
6240 * @klass: the MonoClass to act on
6242 * Returns: the name of the class.
6245 mono_class_get_name (MonoClass *klass)
6251 * mono_class_get_namespace:
6252 * @klass: the MonoClass to act on
6254 * Returns: the namespace of the class.
6257 mono_class_get_namespace (MonoClass *klass)
6259 return klass->name_space;
6263 * mono_class_get_type:
6264 * @klass: the MonoClass to act on
6266 * This method returns the internal Type representation for the class.
6268 * Returns: the MonoType from the class.
6271 mono_class_get_type (MonoClass *klass)
6273 return &klass->byval_arg;
6277 * mono_class_get_type_token
6278 * @klass: the MonoClass to act on
6280 * This method returns type token for the class.
6282 * Returns: the type token for the class.
6285 mono_class_get_type_token (MonoClass *klass)
6287 return klass->type_token;
6291 * mono_class_get_byref_type:
6292 * @klass: the MonoClass to act on
6297 mono_class_get_byref_type (MonoClass *klass)
6299 return &klass->this_arg;
6303 * mono_class_num_fields:
6304 * @klass: the MonoClass to act on
6306 * Returns: the number of static and instance fields in the class.
6309 mono_class_num_fields (MonoClass *klass)
6311 return klass->field.count;
6315 * mono_class_num_methods:
6316 * @klass: the MonoClass to act on
6318 * Returns: the number of methods in the class.
6321 mono_class_num_methods (MonoClass *klass)
6323 return klass->method.count;
6327 * mono_class_num_properties
6328 * @klass: the MonoClass to act on
6330 * Returns: the number of properties in the class.
6333 mono_class_num_properties (MonoClass *klass)
6335 mono_class_setup_properties (klass);
6337 return klass->property.count;
6341 * mono_class_num_events:
6342 * @klass: the MonoClass to act on
6344 * Returns: the number of events in the class.
6347 mono_class_num_events (MonoClass *klass)
6349 mono_class_setup_events (klass);
6351 return klass->event.count;
6355 * mono_class_get_fields:
6356 * @klass: the MonoClass to act on
6358 * This routine is an iterator routine for retrieving the fields in a class.
6360 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6361 * iterate over all of the elements. When no more values are
6362 * available, the return value is NULL.
6364 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
6367 mono_class_get_fields (MonoClass* klass, gpointer *iter)
6369 MonoClassField* field;
6373 mono_class_setup_fields_locking (klass);
6374 /* start from the first */
6375 if (klass->field.count) {
6376 return *iter = &klass->fields [0];
6384 if (field < &klass->fields [klass->field.count]) {
6385 return *iter = field;
6391 * mono_class_get_methods
6392 * @klass: the MonoClass to act on
6394 * This routine is an iterator routine for retrieving the fields in a class.
6396 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6397 * iterate over all of the elements. When no more values are
6398 * available, the return value is NULL.
6400 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
6403 mono_class_get_methods (MonoClass* klass, gpointer *iter)
6405 MonoMethod** method;
6409 mono_class_init (klass);
6411 mono_class_setup_methods (klass);
6412 /* start from the first */
6413 if (klass->method.count) {
6414 *iter = &klass->methods [0];
6415 return klass->methods [0];
6423 if (method < &klass->methods [klass->method.count]) {
6431 * mono_class_get_properties:
6432 * @klass: the MonoClass to act on
6434 * This routine is an iterator routine for retrieving the properties in a class.
6436 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6437 * iterate over all of the elements. When no more values are
6438 * available, the return value is NULL.
6440 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
6443 mono_class_get_properties (MonoClass* klass, gpointer *iter)
6445 MonoProperty* property;
6449 mono_class_init (klass);
6451 mono_class_setup_properties (klass);
6452 /* start from the first */
6453 if (klass->property.count) {
6454 return *iter = &klass->properties [0];
6462 if (property < &klass->properties [klass->property.count]) {
6463 return *iter = property;
6469 * mono_class_get_events:
6470 * @klass: the MonoClass to act on
6472 * This routine is an iterator routine for retrieving the properties in a class.
6474 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6475 * iterate over all of the elements. When no more values are
6476 * available, the return value is NULL.
6478 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
6481 mono_class_get_events (MonoClass* klass, gpointer *iter)
6487 mono_class_init (klass);
6489 mono_class_setup_events (klass);
6490 /* start from the first */
6491 if (klass->event.count) {
6492 return *iter = &klass->events [0];
6500 if (event < &klass->events [klass->event.count]) {
6501 return *iter = event;
6507 * mono_class_get_interfaces
6508 * @klass: the MonoClass to act on
6510 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
6512 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6513 * iterate over all of the elements. When no more values are
6514 * available, the return value is NULL.
6516 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6519 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
6525 mono_class_init (klass);
6527 /* start from the first */
6528 if (klass->interface_count) {
6529 *iter = &klass->interfaces [0];
6530 return klass->interfaces [0];
6538 if (iface < &klass->interfaces [klass->interface_count]) {
6546 * mono_class_get_nested_types
6547 * @klass: the MonoClass to act on
6549 * This routine is an iterator routine for retrieving the nested types of a class.
6550 * This works only if @klass is non-generic, or a generic type definition.
6552 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6553 * iterate over all of the elements. When no more values are
6554 * available, the return value is NULL.
6556 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6559 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
6565 mono_class_init (klass);
6567 /* start from the first */
6568 if (klass->nested_classes) {
6569 *iter = klass->nested_classes;
6570 return klass->nested_classes->data;
6572 /* no nested types */
6586 * mono_field_get_name:
6587 * @field: the MonoClassField to act on
6589 * Returns: the name of the field.
6592 mono_field_get_name (MonoClassField *field)
6598 * mono_field_get_type:
6599 * @field: the MonoClassField to act on
6601 * Returns: MonoType of the field.
6604 mono_field_get_type (MonoClassField *field)
6610 * mono_field_get_type:
6611 * @field: the MonoClassField to act on
6613 * Returns: MonoClass where the field was defined.
6616 mono_field_get_parent (MonoClassField *field)
6618 return field->parent;
6622 * mono_field_get_flags;
6623 * @field: the MonoClassField to act on
6625 * The metadata flags for a field are encoded using the
6626 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6628 * Returns: the flags for the field.
6631 mono_field_get_flags (MonoClassField *field)
6633 return field->type->attrs;
6637 * mono_field_get_offset;
6638 * @field: the MonoClassField to act on
6640 * Returns: the field offset.
6643 mono_field_get_offset (MonoClassField *field)
6645 return field->offset;
6649 * mono_field_get_data;
6650 * @field: the MonoClassField to act on
6652 * Returns: pointer to the metadata constant value or to the field
6653 * data if it has an RVA flag.
6656 mono_field_get_data (MonoClassField *field)
6662 * mono_property_get_name:
6663 * @prop: the MonoProperty to act on
6665 * Returns: the name of the property
6668 mono_property_get_name (MonoProperty *prop)
6674 * mono_property_get_set_method
6675 * @prop: the MonoProperty to act on.
6677 * Returns: the setter method of the property (A MonoMethod)
6680 mono_property_get_set_method (MonoProperty *prop)
6686 * mono_property_get_get_method
6687 * @prop: the MonoProperty to act on.
6689 * Returns: the setter method of the property (A MonoMethod)
6692 mono_property_get_get_method (MonoProperty *prop)
6698 * mono_property_get_parent:
6699 * @prop: the MonoProperty to act on.
6701 * Returns: the MonoClass where the property was defined.
6704 mono_property_get_parent (MonoProperty *prop)
6706 return prop->parent;
6710 * mono_property_get_flags:
6711 * @prop: the MonoProperty to act on.
6713 * The metadata flags for a property are encoded using the
6714 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6716 * Returns: the flags for the property.
6719 mono_property_get_flags (MonoProperty *prop)
6725 * mono_event_get_name:
6726 * @event: the MonoEvent to act on
6728 * Returns: the name of the event.
6731 mono_event_get_name (MonoEvent *event)
6737 * mono_event_get_add_method:
6738 * @event: The MonoEvent to act on.
6740 * Returns: the @add' method for the event (a MonoMethod).
6743 mono_event_get_add_method (MonoEvent *event)
6749 * mono_event_get_remove_method:
6750 * @event: The MonoEvent to act on.
6752 * Returns: the @remove method for the event (a MonoMethod).
6755 mono_event_get_remove_method (MonoEvent *event)
6757 return event->remove;
6761 * mono_event_get_raise_method:
6762 * @event: The MonoEvent to act on.
6764 * Returns: the @raise method for the event (a MonoMethod).
6767 mono_event_get_raise_method (MonoEvent *event)
6769 return event->raise;
6773 * mono_event_get_parent:
6774 * @event: the MonoEvent to act on.
6776 * Returns: the MonoClass where the event is defined.
6779 mono_event_get_parent (MonoEvent *event)
6781 return event->parent;
6785 * mono_event_get_flags
6786 * @event: the MonoEvent to act on.
6788 * The metadata flags for an event are encoded using the
6789 * EVENT_* constants. See the tabledefs.h file for details.
6791 * Returns: the flags for the event.
6794 mono_event_get_flags (MonoEvent *event)
6796 return event->attrs;
6800 * mono_class_get_method_from_name:
6801 * @klass: where to look for the method
6802 * @name_space: name of the method
6803 * @param_count: number of parameters. -1 for any number.
6805 * Obtains a MonoMethod with a given name and number of parameters.
6806 * It only works if there are no multiple signatures for any given method name.
6809 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
6811 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
6815 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
6817 MonoMethod *res = NULL;
6820 /* Search directly in the metadata to avoid calling setup_methods () */
6821 for (i = 0; i < klass->method.count; ++i) {
6822 guint32 cols [MONO_METHOD_SIZE];
6825 /* class->method.first points into the methodptr table */
6826 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6828 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
6829 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6830 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
6841 * mono_class_get_method_from_name_flags:
6842 * @klass: where to look for the method
6843 * @name_space: name of the method
6844 * @param_count: number of parameters. -1 for any number.
6845 * @flags: flags which must be set in the method
6847 * Obtains a MonoMethod with a given name and number of parameters.
6848 * It only works if there are no multiple signatures for any given method name.
6851 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
6853 MonoMethod *res = NULL;
6856 mono_class_init (klass);
6858 if (klass->methods || klass->generic_class) {
6859 mono_class_setup_methods (klass);
6860 for (i = 0; i < klass->method.count; ++i) {
6861 MonoMethod *method = klass->methods [i];
6863 if (method->name[0] == name [0] &&
6864 !strcmp (name, method->name) &&
6865 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
6866 ((method->flags & flags) == flags)) {
6873 res = find_method_in_metadata (klass, name, param_count, flags);
6880 * mono_class_set_failure:
6881 * @klass: class in which the failure was detected
6882 * @ex_type: the kind of exception/error to be thrown (later)
6883 * @ex_data: exception data (specific to each type of exception/error)
6885 * Keep a detected failure informations in the class for later processing.
6886 * Note that only the first failure is kept.
6888 * LOCKING: Acquires the loader lock.
6891 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
6893 if (klass->exception_type)
6896 mono_loader_lock ();
6897 klass->exception_type = ex_type;
6899 mono_property_hash_insert (klass->image->property_hash, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
6900 mono_loader_unlock ();
6906 * mono_class_get_exception_data:
6908 * Return the exception_data property of KLASS.
6910 * LOCKING: Acquires the loader lock.
6913 mono_class_get_exception_data (MonoClass *klass)
6917 mono_loader_lock ();
6918 res = mono_property_hash_lookup (klass->image->property_hash, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
6919 mono_loader_unlock ();
6924 * mono_classes_init:
6926 * Initialize the resources used by this module.
6929 mono_classes_init (void)
6934 * mono_classes_cleanup:
6936 * Free the resources used by this module.
6939 mono_classes_cleanup (void)
6941 if (global_interface_bitset)
6942 mono_bitset_free (global_interface_bitset);
6946 * mono_class_get_exception_for_failure:
6947 * @klass: class in which the failure was detected
6949 * Return a constructed MonoException than the caller can then throw
6950 * using mono_raise_exception - or NULL if no failure is present (or
6951 * doesn't result in an exception).
6954 mono_class_get_exception_for_failure (MonoClass *klass)
6956 gpointer exception_data = mono_class_get_exception_data (klass);
6958 switch (klass->exception_type) {
6959 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
6960 MonoDomain *domain = mono_domain_get ();
6961 MonoSecurityManager* secman = mono_security_manager_get_methods ();
6962 MonoMethod *method = exception_data;
6963 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
6964 MonoObject *exc = NULL;
6968 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
6969 args [2] = mono_type_get_object (domain, &klass->byval_arg);
6970 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
6972 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
6973 return (MonoException*) exc;
6975 case MONO_EXCEPTION_TYPE_LOAD: {
6978 char *str = mono_type_get_full_name (klass);
6979 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
6980 name = mono_string_new (mono_domain_get (), str);
6982 ex = mono_get_exception_type_load (name, astr);
6986 case MONO_EXCEPTION_MISSING_METHOD: {
6987 char *class_name = exception_data;
6988 char *assembly_name = class_name + strlen (class_name) + 1;
6990 return mono_get_exception_missing_method (class_name, assembly_name);
6992 case MONO_EXCEPTION_MISSING_FIELD: {
6993 char *class_name = exception_data;
6994 char *member_name = class_name + strlen (class_name) + 1;
6996 return mono_get_exception_missing_field (class_name, member_name);
6998 case MONO_EXCEPTION_FILE_NOT_FOUND: {
6999 char *msg_format = exception_data;
7000 char *assembly_name = msg_format + strlen (msg_format) + 1;
7001 char *msg = g_strdup_printf (msg_format, assembly_name);
7004 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
7010 case MONO_EXCEPTION_BAD_IMAGE: {
7011 return mono_get_exception_bad_image_format (exception_data);
7014 MonoLoaderError *error;
7017 error = mono_loader_get_last_error ();
7019 ex = mono_loader_error_prepare_exception (error);
7023 /* TODO - handle other class related failures */
7030 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
7032 outer_klass = mono_class_get_generic_type_definition (outer_klass);
7033 inner_klass = mono_class_get_generic_type_definition (inner_klass);
7035 if (outer_klass == inner_klass)
7037 inner_klass = inner_klass->nested_in;
7038 } while (inner_klass);
7043 mono_class_get_generic_type_definition (MonoClass *klass)
7045 return klass->generic_class ? klass->generic_class->container_class : klass;
7049 * Check if @klass is a subtype of @parent ignoring generic instantiations.
7051 * Generic instantiations are ignored for all super types of @klass.
7053 * Visibility checks ignoring generic instantiations.
7056 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
7059 klass = mono_class_get_generic_type_definition (klass);
7060 parent = mono_class_get_generic_type_definition (parent);
7062 for (i = 0; i < klass->idepth; ++i) {
7063 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
7069 * Subtype can only access parent members with family protection if the site object
7070 * is subclass of Subtype. For example:
7071 * class A { protected int x; }
7073 * void valid_access () {
7077 * void invalid_access () {
7084 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
7086 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
7089 if (context_klass == NULL)
7091 /*if access_klass is not member_klass context_klass must be type compat*/
7092 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
7098 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
7101 if (accessing == accessed)
7103 if (!accessed || !accessing)
7105 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
7106 MonoAssemblyName *friend = tmp->data;
7107 /* Be conservative with checks */
7110 if (strcmp (accessing->aname.name, friend->name))
7112 if (friend->public_key_token [0]) {
7113 if (!accessing->aname.public_key_token [0])
7115 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
7124 * If klass is a generic type or if it is derived from a generic type, return the
7125 * MonoClass of the generic definition
7126 * Returns NULL if not found
7129 get_generic_definition_class (MonoClass *klass)
7132 if (klass->generic_class && klass->generic_class->container_class)
7133 return klass->generic_class->container_class;
7134 klass = klass->parent;
7140 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
7143 for (i = 0; i < ginst->type_argc; ++i) {
7144 MonoType *type = ginst->type_argv[i];
7145 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
7147 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
7154 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
7156 int access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7158 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
7161 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
7164 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
7167 switch (access_level) {
7168 case TYPE_ATTRIBUTE_NOT_PUBLIC:
7169 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7171 case TYPE_ATTRIBUTE_PUBLIC:
7174 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
7177 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
7178 return is_nesting_type (member_klass, access_klass);
7180 case TYPE_ATTRIBUTE_NESTED_FAMILY:
7181 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7183 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
7184 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7186 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
7187 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
7188 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7190 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
7191 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
7192 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7197 /* FIXME: check visibility of type, too */
7199 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
7201 MonoClass *member_generic_def;
7202 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
7203 access_klass->generic_container) &&
7204 (member_generic_def = get_generic_definition_class (member_klass))) {
7205 MonoClass *access_container;
7207 if (access_klass->generic_container)
7208 access_container = access_klass;
7210 access_container = access_klass->generic_class->container_class;
7212 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
7216 /* Partition I 8.5.3.2 */
7217 /* the access level values are the same for fields and methods */
7218 switch (access_level) {
7219 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
7220 /* same compilation unit */
7221 return access_klass->image == member_klass->image;
7222 case FIELD_ATTRIBUTE_PRIVATE:
7223 return access_klass == member_klass;
7224 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
7225 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
7226 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
7229 case FIELD_ATTRIBUTE_ASSEMBLY:
7230 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7231 case FIELD_ATTRIBUTE_FAMILY:
7232 if (is_valid_family_access (access_klass, member_klass, context_klass))
7235 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
7236 if (is_valid_family_access (access_klass, member_klass, context_klass))
7238 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7239 case FIELD_ATTRIBUTE_PUBLIC:
7246 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
7248 /* FIXME: check all overlapping fields */
7249 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7251 MonoClass *nested = method->klass->nested_in;
7253 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7256 nested = nested->nested_in;
7263 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
7265 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7267 MonoClass *nested = method->klass->nested_in;
7269 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7272 nested = nested->nested_in;
7277 * with generics calls to explicit interface implementations can be expressed
7278 * directly: the method is private, but we must allow it. This may be opening
7279 * a hole or the generics code should handle this differently.
7280 * Maybe just ensure the interface type is public.
7282 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
7288 * mono_method_can_access_method_with_context:
7289 * @method: The caller method
7290 * @called: The called method
7291 * @context_klass:TThe static type on stack of the owner @called object used
7293 * This function must be used with instance calls, as they have more strict family accessibility.
7294 * It can be used with static mehthod, but context_klass should be NULL.
7296 * Returns: TRUE if caller have proper visibility and acessibility to @called
7299 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
7301 MonoClass *access_class = method->klass;
7302 MonoClass *member_class = called->klass;
7303 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7305 MonoClass *nested = access_class->nested_in;
7307 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7310 nested = nested->nested_in;
7317 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7320 if (called->is_inflated) {
7321 MonoMethodInflated * infl = (MonoMethodInflated*)called;
7322 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
7331 * mono_method_can_access_method_with_context:
7332 * @method: The caller method
7333 * @field: The accessed field
7334 * @context_klass: The static type on stack of the owner @field object used
7336 * This function must be used with instance fields, as they have more strict family accessibility.
7337 * It can be used with static fields, but context_klass should be NULL.
7339 * Returns: TRUE if caller have proper visibility and acessibility to @field
7342 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
7344 MonoClass *access_class = method->klass;
7345 MonoClass *member_class = field->parent;
7346 /* FIXME: check all overlapping fields */
7347 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7349 MonoClass *nested = access_class->nested_in;
7351 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7354 nested = nested->nested_in;
7361 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7367 * mono_type_is_valid_enum_basetype:
7368 * @type: The MonoType to check
7370 * Returns: TRUE if the type can be used as the basetype of an enum
7372 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
7373 switch (type->type) {
7376 case MONO_TYPE_BOOLEAN:
7379 case MONO_TYPE_CHAR:
7392 * mono_class_is_valid_enum:
7393 * @klass: An enum class to be validated
7395 * This method verify the required properties an enum should have.
7397 * Returns: TRUE if the informed enum class is valid
7399 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
7400 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
7401 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
7403 gboolean mono_class_is_valid_enum (MonoClass *klass) {
7404 MonoClassField * field;
7405 gpointer iter = NULL;
7406 gboolean found_base_field = FALSE;
7408 g_assert (klass->enumtype);
7409 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
7410 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
7414 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
7417 while ((field = mono_class_get_fields (klass, &iter))) {
7418 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
7419 if (found_base_field)
7421 found_base_field = TRUE;
7422 if (!mono_type_is_valid_enum_basetype (field->type))
7427 if (!found_base_field)
7430 if (klass->method.count > 0)
7437 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
7439 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
7443 * mono_class_generic_sharing_enabled:
7446 * Returns whether generic sharing is enabled for class.
7448 * This is a stop-gap measure to slowly introduce generic sharing
7449 * until we have all the issues sorted out, at which time this
7450 * function will disappear and generic sharing will always be enabled.
7453 mono_class_generic_sharing_enabled (MonoClass *class)
7455 #if defined(__i386__) || defined(__x86_64__)
7456 static gboolean supported = TRUE;
7458 /* Not supported by the JIT backends */
7459 static gboolean supported = FALSE;
7461 static int generic_sharing = MONO_GENERIC_SHARING_NONE;
7462 static gboolean inited = FALSE;
7468 generic_sharing = MONO_GENERIC_SHARING_COLLECTIONS;
7470 generic_sharing = MONO_GENERIC_SHARING_NONE;
7472 if ((option = g_getenv ("MONO_GENERIC_SHARING"))) {
7473 if (strcmp (option, "corlib") == 0)
7474 generic_sharing = MONO_GENERIC_SHARING_CORLIB;
7475 else if (strcmp (option, "collections") == 0)
7476 generic_sharing = MONO_GENERIC_SHARING_COLLECTIONS;
7477 else if (strcmp (option, "all") == 0)
7478 generic_sharing = MONO_GENERIC_SHARING_ALL;
7479 else if (strcmp (option, "none") == 0)
7480 generic_sharing = MONO_GENERIC_SHARING_NONE;
7482 g_warning ("Unknown generic sharing option `%s'.", option);
7486 generic_sharing = MONO_GENERIC_SHARING_NONE;
7491 switch (generic_sharing) {
7492 case MONO_GENERIC_SHARING_NONE:
7494 case MONO_GENERIC_SHARING_ALL:
7496 case MONO_GENERIC_SHARING_CORLIB :
7497 return class->image == mono_defaults.corlib;
7498 case MONO_GENERIC_SHARING_COLLECTIONS:
7499 if (class->image != mono_defaults.corlib)
7501 while (class->nested_in)
7502 class = class->nested_in;
7503 return g_str_has_prefix (class->name_space, "System.Collections.Generic");
7505 g_assert_not_reached ();