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/metadata/mono-debug.h>
39 #include <mono/utils/mono-counters.h>
43 gboolean mono_print_vtable = FALSE;
46 * Controls whenever mono_class_init () constructs a generic vtable. This is TRUE by
47 * default to avoid breaking embedding apps, but set to FALSE by the runtime executable
50 gboolean mono_setup_vtable_in_class_init = TRUE;
52 /* Function supplied by the runtime to find classes by name using information from the AOT file */
53 static MonoGetClassFromName get_class_from_name = NULL;
55 static MonoClass * mono_class_create_from_typedef (MonoImage *image, guint32 type_token);
56 static gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
57 static gboolean can_access_type (MonoClass *access_klass, MonoClass *member_klass);
58 static MonoMethod* find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags);
59 static int generic_array_methods (MonoClass *class);
60 static void setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos);
62 static MonoMethod* mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter);
64 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
65 void (*mono_debugger_class_loaded_methods_func) (MonoClass *klass) = NULL;
68 * mono_class_from_typeref:
70 * @type_token: a TypeRef token
72 * Creates the MonoClass* structure representing the type defined by
73 * the typeref token valid inside @image.
74 * Returns: the MonoClass* representing the typeref token, NULL ifcould
78 mono_class_from_typeref (MonoImage *image, guint32 type_token)
80 guint32 cols [MONO_TYPEREF_SIZE];
81 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
83 const char *name, *nspace;
87 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
89 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
90 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
92 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
93 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
94 case MONO_RESOLTION_SCOPE_MODULE:
96 g_error ("null ResolutionScope not yet handled");
97 /* a typedef in disguise */
98 return mono_class_from_name (image, nspace, name);
99 case MONO_RESOLTION_SCOPE_MODULEREF:
100 module = mono_image_load_module (image, idx);
102 return mono_class_from_name (module, nspace, name);
104 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
107 human_name = mono_stringify_assembly_name (&image->assembly->aname);
108 mono_loader_set_error_type_load (msg, human_name);
114 case MONO_RESOLTION_SCOPE_TYPEREF: {
115 MonoClass *enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
118 if (enclosing->nested_classes_inited) {
119 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
120 for (tmp = enclosing->nested_classes; tmp; tmp = tmp->next) {
122 if (strcmp (res->name, name) == 0)
126 /* Don't call mono_class_init as we might've been called by it recursively */
127 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
129 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
130 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
131 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
133 if (strcmp (nname, name) == 0)
134 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
136 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
139 g_warning ("TypeRef ResolutionScope not yet handled (%d) for %s.%s in image %s", idx, nspace, name, image->name);
142 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
146 if (!image->references || !image->references [idx - 1])
147 mono_assembly_load_reference (image, idx - 1);
148 g_assert (image->references [idx - 1]);
150 /* If the assembly did not load, register this as a type load exception */
151 if (image->references [idx - 1] == REFERENCE_MISSING){
152 MonoAssemblyName aname;
155 mono_assembly_get_assemblyref (image, idx - 1, &aname);
156 human_name = mono_stringify_assembly_name (&aname);
157 mono_loader_set_error_assembly_load (human_name, image->assembly->ref_only);
163 return mono_class_from_name (image->references [idx - 1]->image, nspace, name);
168 mono_mempool_dup (MonoMemPool *mp, void *data, guint size)
170 void *res = mono_mempool_alloc (mp, size);
171 memcpy (res, data, size);
175 /* Copy everything mono_metadata_free_array free. */
177 mono_dup_array_type (MonoMemPool *mp, MonoArrayType *a)
181 a = mono_mempool_dup (mp, a, sizeof (MonoArrayType));
183 a->sizes = mono_mempool_dup (mp, a->sizes, a->numsizes * sizeof (int));
185 a->lobounds = mono_mempool_dup (mp, a->lobounds, a->numlobounds * sizeof (int));
186 mono_loader_unlock ();
188 a = g_memdup (a, sizeof (MonoArrayType));
190 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
192 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
197 /* Copy everything mono_metadata_free_method_signature free. */
199 mono_metadata_signature_deep_dup (MonoMemPool *mp, MonoMethodSignature *sig)
203 sig = mono_metadata_signature_dup_full (mp, sig);
205 sig->ret = mono_metadata_type_dup (mp, sig->ret);
206 for (i = 0; i < sig->param_count; ++i)
207 sig->params [i] = mono_metadata_type_dup (mp, sig->params [i]);
213 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
215 MonoAssembly *ta = klass->image->assembly;
217 g_string_append_printf (
218 str, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
220 ta->aname.major, ta->aname.minor, ta->aname.build, ta->aname.revision,
221 ta->aname.culture && *ta->aname.culture? ta->aname.culture: "neutral",
222 ta->aname.public_key_token [0] ? (char *)ta->aname.public_key_token : "null",
223 (ta->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
227 mono_type_name_check_byref (MonoType *type, GString *str)
230 g_string_append_c (str, '&');
234 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
235 MonoTypeNameFormat format)
239 switch (type->type) {
240 case MONO_TYPE_ARRAY: {
241 int i, rank = type->data.array->rank;
242 MonoTypeNameFormat nested_format;
244 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
245 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
247 mono_type_get_name_recurse (
248 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
249 g_string_append_c (str, '[');
251 g_string_append_c (str, '*');
252 for (i = 1; i < rank; i++)
253 g_string_append_c (str, ',');
254 g_string_append_c (str, ']');
256 mono_type_name_check_byref (type, str);
258 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
259 _mono_type_get_assembly_name (type->data.array->eklass, str);
262 case MONO_TYPE_SZARRAY: {
263 MonoTypeNameFormat nested_format;
265 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
266 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
268 mono_type_get_name_recurse (
269 &type->data.klass->byval_arg, str, FALSE, nested_format);
270 g_string_append (str, "[]");
272 mono_type_name_check_byref (type, str);
274 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
275 _mono_type_get_assembly_name (type->data.klass, str);
278 case MONO_TYPE_PTR: {
279 MonoTypeNameFormat nested_format;
281 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
282 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
284 mono_type_get_name_recurse (
285 type->data.type, str, FALSE, nested_format);
286 g_string_append_c (str, '*');
288 mono_type_name_check_byref (type, str);
290 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
291 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
296 g_assert (type->data.generic_param->name);
297 g_string_append (str, type->data.generic_param->name);
299 mono_type_name_check_byref (type, str);
303 klass = mono_class_from_mono_type (type);
304 if (klass->nested_in) {
305 mono_type_get_name_recurse (
306 &klass->nested_in->byval_arg, str, TRUE, format);
307 if (format == MONO_TYPE_NAME_FORMAT_IL)
308 g_string_append_c (str, '.');
310 g_string_append_c (str, '+');
311 } else if (*klass->name_space) {
312 g_string_append (str, klass->name_space);
313 g_string_append_c (str, '.');
315 if (format == MONO_TYPE_NAME_FORMAT_IL) {
316 char *s = strchr (klass->name, '`');
317 int len = s ? s - klass->name : strlen (klass->name);
319 g_string_append_len (str, klass->name, len);
321 g_string_append (str, klass->name);
324 if (klass->generic_class) {
325 MonoGenericClass *gclass = klass->generic_class;
326 MonoGenericInst *inst = gclass->context.class_inst;
327 MonoTypeNameFormat nested_format;
330 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
331 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
333 if (format == MONO_TYPE_NAME_FORMAT_IL)
334 g_string_append_c (str, '<');
336 g_string_append_c (str, '[');
337 for (i = 0; i < inst->type_argc; i++) {
338 MonoType *t = inst->type_argv [i];
341 g_string_append_c (str, ',');
342 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
343 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
344 g_string_append_c (str, '[');
345 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
346 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
347 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
348 g_string_append_c (str, ']');
350 if (format == MONO_TYPE_NAME_FORMAT_IL)
351 g_string_append_c (str, '>');
353 g_string_append_c (str, ']');
354 } else if (klass->generic_container &&
355 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
356 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
359 if (format == MONO_TYPE_NAME_FORMAT_IL)
360 g_string_append_c (str, '<');
362 g_string_append_c (str, '[');
363 for (i = 0; i < klass->generic_container->type_argc; i++) {
365 g_string_append_c (str, ',');
366 g_string_append (str, klass->generic_container->type_params [i].name);
368 if (format == MONO_TYPE_NAME_FORMAT_IL)
369 g_string_append_c (str, '>');
371 g_string_append_c (str, ']');
374 mono_type_name_check_byref (type, str);
376 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
377 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
378 _mono_type_get_assembly_name (klass, str);
384 * mono_type_get_name:
386 * @format: the format for the return string.
389 * Returns: the string representation in a number of formats:
391 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
392 * returned in the formatrequired by System.Reflection, this is the
393 * inverse of mono_reflection_parse_type ().
395 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
396 * be used by the IL assembler.
398 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
400 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
403 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
407 result = g_string_new ("");
409 mono_type_get_name_recurse (type, result, FALSE, format);
411 return g_string_free (result, FALSE);
415 * mono_type_get_full_name:
418 * Returns: the string representation for type as required by System.Reflection.
419 * The inverse of mono_reflection_parse_type ().
422 mono_type_get_full_name (MonoClass *class)
424 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
428 * mono_type_get_name:
431 * Returns: the string representation for type as it would be represented in IL code.
434 mono_type_get_name (MonoType *type)
436 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
440 * mono_type_get_underlying_type:
443 * Returns: the MonoType for the underlying integer type if @type
444 * is an enum and byref is false, otherwise the type itself.
447 mono_type_get_underlying_type (MonoType *type)
449 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
450 return type->data.klass->enum_basetype;
451 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
452 return type->data.generic_class->container_class->enum_basetype;
457 * mono_class_is_open_constructed_type:
460 * Returns TRUE if type represents a generics open constructed type
461 * (not all the type parameters required for the instantiation have
465 mono_class_is_open_constructed_type (MonoType *t)
471 case MONO_TYPE_SZARRAY:
472 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
473 case MONO_TYPE_ARRAY:
474 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
476 return mono_class_is_open_constructed_type (t->data.type);
477 case MONO_TYPE_GENERICINST:
478 return t->data.generic_class->context.class_inst->is_open;
485 inflate_generic_type (MonoMemPool *mempool, MonoType *type, MonoGenericContext *context)
487 switch (type->type) {
488 case MONO_TYPE_MVAR: {
490 int num = type->data.generic_param->num;
491 MonoGenericInst *inst = context->method_inst;
492 if (!inst || !inst->type_argv)
494 if (num >= inst->type_argc)
495 g_error ("MVAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
498 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
499 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
500 * ->byref and ->attrs from @type are propagated to the returned type.
502 nt = mono_metadata_type_dup (mempool, inst->type_argv [num]);
503 nt->byref = type->byref;
504 nt->attrs = type->attrs;
507 case MONO_TYPE_VAR: {
509 int num = type->data.generic_param->num;
510 MonoGenericInst *inst = context->class_inst;
513 if (num >= inst->type_argc)
514 g_error ("VAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
515 nt = mono_metadata_type_dup (mempool, inst->type_argv [num]);
516 nt->byref = type->byref;
517 nt->attrs = type->attrs;
520 case MONO_TYPE_SZARRAY: {
521 MonoClass *eclass = type->data.klass;
522 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
525 nt = mono_metadata_type_dup (mempool, type);
526 nt->data.klass = mono_class_from_mono_type (inflated);
527 mono_metadata_free_type (inflated);
530 case MONO_TYPE_ARRAY: {
531 MonoClass *eclass = type->data.array->eklass;
532 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
535 nt = mono_metadata_type_dup (mempool, type);
536 nt->data.array = g_memdup (nt->data.array, sizeof (MonoArrayType));
537 nt->data.array->eklass = mono_class_from_mono_type (inflated);
538 mono_metadata_free_type (inflated);
541 case MONO_TYPE_GENERICINST: {
542 MonoGenericClass *gclass = type->data.generic_class;
543 MonoGenericInst *inst;
545 if (!gclass->context.class_inst->is_open)
548 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context);
549 if (inst != gclass->context.class_inst)
550 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
552 if (gclass == type->data.generic_class)
555 nt = mono_metadata_type_dup (mempool, type);
556 nt->data.generic_class = gclass;
559 case MONO_TYPE_CLASS:
560 case MONO_TYPE_VALUETYPE: {
561 MonoClass *klass = type->data.klass;
562 MonoGenericContainer *container = klass->generic_container;
563 MonoGenericInst *inst;
564 MonoGenericClass *gclass = NULL;
570 /* We can't use context->class_inst directly, since it can have more elements */
571 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context);
572 if (inst == container->context.class_inst)
575 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
577 nt = mono_metadata_type_dup (mempool, type);
578 nt->type = MONO_TYPE_GENERICINST;
579 nt->data.generic_class = gclass;
589 mono_generic_class_get_context (MonoGenericClass *gclass)
591 return &gclass->context;
595 mono_class_get_context (MonoClass *class)
597 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
601 * mono_class_inflate_generic_type_with_mempool:
602 * @mempool: a mempool
604 * @context: a generics context
606 * The same as mono_class_inflate_generic_type, but allocates the MonoType
607 * from mempool if it is non-NULL. If it is NULL, the MonoType is
608 * allocated on the heap and is owned by the caller.
609 * The returned type can potentially be the same as TYPE, so it should not be
610 * modified by the caller, and it should be freed using mono_metadata_free_type ().
613 mono_class_inflate_generic_type_with_mempool (MonoMemPool *mempool, MonoType *type, MonoGenericContext *context)
615 MonoType *inflated = NULL;
618 inflated = inflate_generic_type (mempool, type, context);
621 MonoType *shared = mono_metadata_get_shared_type (type);
626 return mono_metadata_type_dup (mempool, type);
630 mono_stats.inflated_type_count++;
635 * mono_class_inflate_generic_type:
637 * @context: a generics context
639 * If @type is a generic type and @context is not NULL, instantiate it using the
640 * generics context @context.
642 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
643 * on the heap and is owned by the caller.
646 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
648 return mono_class_inflate_generic_type_with_mempool (NULL, type, context);
652 * mono_class_inflate_generic_type_with_mempool_no_copy:
654 * Same as inflate_generic_type_with_mempool, but return TYPE if no inflation
658 mono_class_inflate_generic_type_with_mempool_no_copy (MonoMemPool *mempool, MonoType *type, MonoGenericContext *context)
660 MonoType *inflated = NULL;
663 inflated = inflate_generic_type (mempool, type, context);
668 mono_stats.inflated_type_count++;
672 static MonoGenericContext
673 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with)
675 MonoGenericInst *class_inst = NULL;
676 MonoGenericInst *method_inst = NULL;
677 MonoGenericContext res;
679 if (context->class_inst)
680 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with);
682 if (context->method_inst)
683 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with);
685 res.class_inst = class_inst;
686 res.method_inst = method_inst;
692 * mono_class_inflate_generic_method:
693 * @method: a generic method
694 * @context: a generics context
696 * Instantiate the generic method @method using the generics context @context.
698 * Returns: the new instantiated method
701 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
703 return mono_class_inflate_generic_method_full (method, NULL, context);
707 * mono_class_inflate_generic_method:
709 * Instantiate method @method with the generic context @context.
710 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
711 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
714 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
717 MonoMethodInflated *iresult, *cached;
718 MonoMethodSignature *sig;
719 MonoGenericContext tmp_context;
720 gboolean is_mb_open = FALSE;
722 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
723 while (method->is_inflated) {
724 MonoGenericContext *method_context = mono_method_get_context (method);
725 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
727 tmp_context = inflate_generic_context (method_context, context);
728 context = &tmp_context;
730 if (mono_metadata_generic_context_equal (method_context, context))
733 method = imethod->declaring;
736 if (!method->is_generic && !method->klass->generic_container)
740 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
741 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
742 * This is opposite to the way non-SRE MethodInfos behave.
744 * This happens, for example, when we want to emit a recursive generic method. Given the following C# code:
746 * void Example<T> () {
750 * In Example, the method token must be encoded as: "void Example<!!0>()"
752 * The reference to the first generic argument, "!!0", must be explicit otherwise it won't be inflated
753 * properly. To get that we need to inflate the MethodBuilder with its own arguments.
755 * On the other hand, inflating a non-SRE generic method with its own arguments should
756 * return itself. For example:
758 * MethodInfo m = ... //m is a generic method definition
759 * MethodInfo res = m.MakeGenericMethod (m.GetGenericArguments ());
762 * To allow such scenarios we must allow inflation of MethodBuilder to happen in a diferent way than
763 * what happens with regular methods.
765 * There is one last touch to this madness, once a TypeBuilder is finished, IOW CreateType() is called,
766 * everything should behave like a regular type or method.
769 is_mb_open = method->is_generic &&
770 method->klass->image->dynamic && !method->klass->wastypebuilder && /* that is a MethodBuilder from an unfinished TypeBuilder */
771 context->method_inst == mono_method_get_generic_container (method)->context.method_inst; /* and it's been instantiated with its own arguments. */
773 iresult = g_new0 (MonoMethodInflated, 1);
774 iresult->context = *context;
775 iresult->declaring = method;
776 iresult->is_mb_open = is_mb_open;
778 if (!context->method_inst && method->is_generic)
779 iresult->context.method_inst = mono_method_get_generic_container (method)->context.method_inst;
781 if (!context->class_inst) {
782 g_assert (!iresult->declaring->klass->generic_class);
783 if (iresult->declaring->klass->generic_container)
784 iresult->context.class_inst = iresult->declaring->klass->generic_container->context.class_inst;
785 else if (iresult->declaring->klass->generic_class)
786 iresult->context.class_inst = iresult->declaring->klass->generic_class->context.class_inst;
790 cached = mono_method_inflated_lookup (iresult, FALSE);
792 mono_loader_unlock ();
794 return (MonoMethod*)cached;
797 mono_stats.inflated_method_count++;
799 sig = mono_method_signature (method);
801 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
803 memcpy (&iresult->method.normal, method, sizeof (MonoMethodNormal));
804 iresult->method.normal.header = NULL;
807 result = (MonoMethod *) iresult;
808 result->is_inflated = TRUE;
809 result->is_generic = FALSE;
810 result->signature = NULL;
812 if (!context->method_inst) {
813 /* Set the generic_container of the result to the generic_container of method */
814 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
816 if (generic_container) {
817 result->is_generic = 1;
818 mono_method_set_generic_container (result, generic_container);
822 if (!klass_hint || !klass_hint->generic_class ||
823 klass_hint->generic_class->container_class != method->klass ||
824 klass_hint->generic_class->context.class_inst != context->class_inst)
827 if (method->klass->generic_container)
828 result->klass = klass_hint;
830 if (!result->klass) {
831 MonoType *inflated = inflate_generic_type (NULL, &method->klass->byval_arg, context);
832 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
834 mono_metadata_free_type (inflated);
837 mono_method_inflated_lookup (iresult, TRUE);
838 mono_loader_unlock ();
843 * mono_get_inflated_method:
845 * Obsolete. We keep it around since it's mentioned in the public API.
848 mono_get_inflated_method (MonoMethod *method)
854 mono_method_get_context (MonoMethod *method)
856 MonoMethodInflated *imethod;
857 if (!method->is_inflated)
859 imethod = (MonoMethodInflated *) method;
860 return &imethod->context;
864 * mono_method_get_generic_container:
866 * Returns the generic container of METHOD, which should be a generic method definition.
867 * Returns NULL if METHOD is not a generic method definition.
868 * LOCKING: Acquires the loader lock.
870 MonoGenericContainer*
871 mono_method_get_generic_container (MonoMethod *method)
873 MonoGenericContainer *container;
875 if (!method->is_generic)
879 container = mono_property_hash_lookup (method->klass->image->property_hash, method, MONO_METHOD_PROP_GENERIC_CONTAINER);
880 mono_loader_unlock ();
881 g_assert (container);
887 * mono_method_set_generic_container:
889 * Sets the generic container of METHOD to CONTAINER.
890 * LOCKING: Acquires the loader lock.
893 mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container)
895 g_assert (method->is_generic);
898 mono_property_hash_insert (method->klass->image->property_hash, method, MONO_METHOD_PROP_GENERIC_CONTAINER, container);
899 mono_loader_unlock ();
903 * mono_class_find_enum_basetype:
904 * @class: The enum class
906 * Determine the basetype of an enum by iterating through its fields. We do this
907 * in a separate function since it is cheaper than calling mono_class_setup_fields.
910 mono_class_find_enum_basetype (MonoClass *class)
912 MonoImage *m = class->image;
913 const int top = class->field.count;
916 g_assert (class->enumtype);
919 * Fetch all the field information.
921 for (i = 0; i < top; i++){
923 guint32 cols [MONO_FIELD_SIZE];
924 int idx = class->field.first + i;
925 MonoGenericContainer *container = NULL;
928 /* class->field.first and idx points into the fieldptr table */
929 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
930 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
931 mono_metadata_decode_value (sig, &sig);
932 /* FIELD signature == 0x06 */
933 g_assert (*sig == 0x06);
934 if (class->generic_container)
935 container = class->generic_container;
936 else if (class->generic_class) {
937 MonoClass *gklass = class->generic_class->container_class;
939 container = gklass->generic_container;
940 g_assert (container);
942 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
945 if (class->generic_class) {
946 //FIXME do we leak here?
947 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
948 ftype->attrs = cols [MONO_FIELD_FLAGS];
951 if (class->enumtype && !(cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC))
959 * mono_class_setup_fields:
960 * @class: The class to initialize
962 * Initializes the class->fields.
963 * LOCKING: Assumes the loader lock is held.
966 mono_class_setup_fields (MonoClass *class)
968 MonoImage *m = class->image;
969 int top = class->field.count;
970 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
971 int i, blittable = TRUE;
972 guint32 real_size = 0;
973 guint32 packing_size = 0;
974 gboolean explicit_size;
975 MonoClassField *field;
976 MonoGenericContainer *container = NULL;
977 MonoClass *gklass = NULL;
979 if (class->size_inited)
982 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
984 * This happens when a generic instance of an unfinished generic typebuilder
985 * is used as an element type for creating an array type. We can't initialize
986 * the fields of this class using the fields of gklass, since gklass is not
987 * finished yet, fields could be added to it later.
992 if (class->generic_class) {
993 MonoClass *gklass = class->generic_class->container_class;
994 mono_class_setup_fields (gklass);
995 top = gklass->field.count;
996 class->field.count = gklass->field.count;
999 class->instance_size = 0;
1001 class->sizes.class_size = 0;
1003 if (class->parent) {
1004 /* For generic instances, class->parent might not have been initialized */
1005 mono_class_init (class->parent);
1006 if (!class->parent->size_inited)
1007 mono_class_setup_fields (class->parent);
1008 class->instance_size += class->parent->instance_size;
1009 class->min_align = class->parent->min_align;
1010 /* we use |= since it may have been set already */
1011 class->has_references |= class->parent->has_references;
1012 blittable = class->parent->blittable;
1014 class->instance_size = sizeof (MonoObject);
1015 class->min_align = 1;
1018 if (class->simd_type)
1019 class->min_align = 16;
1021 /* Get the real size */
1022 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
1024 if (explicit_size) {
1025 g_assert ((packing_size & 0xfffffff0) == 0);
1026 class->packing_size = packing_size;
1027 real_size += class->instance_size;
1031 if (explicit_size && real_size) {
1032 class->instance_size = MAX (real_size, class->instance_size);
1034 class->size_inited = 1;
1035 class->blittable = blittable;
1039 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1042 /* Prevent infinite loops if the class references itself */
1043 class->size_inited = 1;
1045 class->fields = mono_image_alloc0 (class->image, sizeof (MonoClassField) * top);
1047 if (class->generic_container) {
1048 container = class->generic_container;
1049 } else if (class->generic_class) {
1050 gklass = class->generic_class->container_class;
1051 container = gklass->generic_container;
1052 g_assert (container);
1054 mono_class_setup_fields (gklass);
1056 if (gklass->exception_type) {
1057 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1063 * Fetch all the field information.
1065 for (i = 0; i < top; i++){
1066 int idx = class->field.first + i;
1067 field = &class->fields [i];
1069 field->parent = class;
1071 if (class->generic_class) {
1072 MonoClassField *gfield = &gklass->fields [i];
1074 field->name = mono_field_get_name (gfield);
1075 /*This memory must come from the image mempool as we don't have a chance to free it.*/
1076 field->type = mono_class_inflate_generic_type_with_mempool_no_copy (class->image->mempool, gfield->type, mono_class_get_context (class));
1077 g_assert (field->type->attrs == gfield->type->attrs);
1078 if (mono_field_is_deleted (field))
1080 field->offset = gfield->offset;
1083 guint32 cols [MONO_FIELD_SIZE];
1085 /* class->field.first and idx points into the fieldptr table */
1086 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1087 /* The name is needed for fieldrefs */
1088 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
1089 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1090 mono_metadata_decode_value (sig, &sig);
1091 /* FIELD signature == 0x06 */
1092 g_assert (*sig == 0x06);
1093 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1095 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1098 if (mono_field_is_deleted (field))
1100 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1102 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1103 field->offset = offset;
1104 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1105 g_warning ("%s not initialized correctly (missing field layout info for %s)",
1106 class->name, mono_field_get_name (field));
1110 /* Only do these checks if we still think this type is blittable */
1111 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1112 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1115 MonoClass *field_class = mono_class_from_mono_type (field->type);
1117 mono_class_setup_fields (field_class);
1118 if (!field_class || !field_class->blittable)
1123 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1124 class->enum_basetype = field->type;
1125 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
1126 blittable = class->element_class->blittable;
1129 /* The def_value of fields is compute lazily during vtable creation */
1132 if (class == mono_defaults.string_class)
1135 class->blittable = blittable;
1137 if (class->enumtype && !class->enum_basetype) {
1138 if (!((strcmp (class->name, "Enum") == 0) && (strcmp (class->name_space, "System") == 0)))
1141 if (explicit_size && real_size) {
1142 class->instance_size = MAX (real_size, class->instance_size);
1145 if (class->exception_type)
1147 mono_class_layout_fields (class);
1151 * mono_class_setup_fields_locking:
1152 * @class: The class to initialize
1154 * Initializes the class->fields array of fields.
1155 * Aquires the loader lock.
1158 mono_class_setup_fields_locking (MonoClass *class)
1160 mono_loader_lock ();
1161 mono_class_setup_fields (class);
1162 mono_loader_unlock ();
1166 * mono_class_has_references:
1168 * Returns whenever @klass->has_references is set, initializing it if needed.
1169 * Aquires the loader lock.
1172 mono_class_has_references (MonoClass *klass)
1174 if (klass->init_pending) {
1175 /* Be conservative */
1178 mono_class_init (klass);
1180 return klass->has_references;
1184 /* useful until we keep track of gc-references in corlib etc. */
1186 #define IS_GC_REFERENCE(t) FALSE
1188 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1192 * mono_type_get_basic_type_from_generic:
1195 * Returns a closed type corresponding to the possibly open type
1199 mono_type_get_basic_type_from_generic (MonoType *type)
1201 /* When we do generic sharing we let type variables stand for reference types. */
1202 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1203 return &mono_defaults.object_class->byval_arg;
1208 * mono_class_layout_fields:
1211 * Compute the placement of fields inside an object or struct, according to
1212 * the layout rules and set the following fields in @class:
1213 * - has_references (if the class contains instance references firled or structs that contain references)
1214 * - has_static_refs (same, but for static fields)
1215 * - instance_size (size of the object in memory)
1216 * - class_size (size needed for the static fields)
1217 * - size_inited (flag set when the instance_size is set)
1219 * LOCKING: this is supposed to be called with the loader lock held.
1222 mono_class_layout_fields (MonoClass *class)
1225 const int top = class->field.count;
1226 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1227 guint32 pass, passes, real_size;
1228 gboolean gc_aware_layout = FALSE;
1229 MonoClassField *field;
1232 * When we do generic sharing we need to have layout
1233 * information for open generic classes (either with a generic
1234 * context containing type variables or with a generic
1235 * container), so we don't return in that case anymore.
1239 * Enable GC aware auto layout: in this mode, reference
1240 * fields are grouped together inside objects, increasing collector
1242 * Requires that all classes whose layout is known to native code be annotated
1243 * with [StructLayout (LayoutKind.Sequential)]
1244 * Value types have gc_aware_layout disabled by default, as per
1245 * what the default is for other runtimes.
1247 /* corlib is missing [StructLayout] directives in many places */
1248 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1249 if (class->image != mono_defaults.corlib &&
1250 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1251 gc_aware_layout = TRUE;
1252 /* from System.dll, used in metadata/process.h */
1253 if (strcmp (class->name, "ProcessStartInfo") == 0)
1254 gc_aware_layout = FALSE;
1257 /* Compute klass->has_references */
1259 * Process non-static fields first, since static fields might recursively
1260 * refer to the class itself.
1262 for (i = 0; i < top; i++) {
1265 field = &class->fields [i];
1267 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1268 ftype = mono_type_get_underlying_type (field->type);
1269 ftype = mono_type_get_basic_type_from_generic (ftype);
1270 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1271 class->has_references = TRUE;
1275 for (i = 0; i < top; i++) {
1278 field = &class->fields [i];
1280 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1281 ftype = mono_type_get_underlying_type (field->type);
1282 ftype = mono_type_get_basic_type_from_generic (ftype);
1283 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1284 class->has_static_refs = TRUE;
1288 for (i = 0; i < top; i++) {
1291 field = &class->fields [i];
1293 ftype = mono_type_get_underlying_type (field->type);
1294 ftype = mono_type_get_basic_type_from_generic (ftype);
1295 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1296 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1297 class->has_static_refs = TRUE;
1299 class->has_references = TRUE;
1304 * Compute field layout and total size (not considering static fields)
1308 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1309 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1311 if (gc_aware_layout)
1316 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1320 real_size = class->parent->instance_size;
1322 real_size = sizeof (MonoObject);
1324 for (pass = 0; pass < passes; ++pass) {
1325 for (i = 0; i < top; i++){
1330 field = &class->fields [i];
1332 if (mono_field_is_deleted (field))
1334 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1337 ftype = mono_type_get_underlying_type (field->type);
1338 ftype = mono_type_get_basic_type_from_generic (ftype);
1339 if (gc_aware_layout) {
1340 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1349 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1350 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1351 /* This field is a hack inserted by MCS to empty structures */
1355 size = mono_type_size (field->type, &align);
1357 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1358 align = class->packing_size ? MIN (class->packing_size, align): align;
1359 /* if the field has managed references, we need to force-align it
1362 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1363 align = MAX (align, sizeof (gpointer));
1365 class->min_align = MAX (align, class->min_align);
1366 field->offset = real_size;
1367 field->offset += align - 1;
1368 field->offset &= ~(align - 1);
1369 real_size = field->offset + size;
1372 class->instance_size = MAX (real_size, class->instance_size);
1374 if (class->instance_size & (class->min_align - 1)) {
1375 class->instance_size += class->min_align - 1;
1376 class->instance_size &= ~(class->min_align - 1);
1380 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1382 for (i = 0; i < top; i++) {
1387 field = &class->fields [i];
1390 * There must be info about all the fields in a type if it
1391 * uses explicit layout.
1394 if (mono_field_is_deleted (field))
1396 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1399 size = mono_type_size (field->type, &align);
1400 class->min_align = MAX (align, class->min_align);
1403 * When we get here, field->offset is already set by the
1404 * loader (for either runtime fields or fields loaded from metadata).
1405 * The offset is from the start of the object: this works for both
1406 * classes and valuetypes.
1408 field->offset += sizeof (MonoObject);
1409 ftype = mono_type_get_underlying_type (field->type);
1410 ftype = mono_type_get_basic_type_from_generic (ftype);
1411 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1412 if (field->offset % sizeof (gpointer)) {
1413 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1420 real_size = MAX (real_size, size + field->offset);
1422 class->instance_size = MAX (real_size, class->instance_size);
1426 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1428 * For small structs, set min_align to at least the struct size to improve
1429 * performance, and since the JIT memset/memcpy code assumes this and generates
1430 * unaligned accesses otherwise. See #78990 for a testcase.
1432 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1433 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1436 class->size_inited = 1;
1439 * Compute static field layout and size
1441 for (i = 0; i < top; i++){
1445 field = &class->fields [i];
1447 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1449 if (mono_field_is_deleted (field))
1452 size = mono_type_size (field->type, &align);
1453 field->offset = class->sizes.class_size;
1454 field->offset += align - 1;
1455 field->offset &= ~(align - 1);
1456 class->sizes.class_size = field->offset + size;
1461 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1465 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1466 method->klass = class;
1467 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1468 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1469 method->signature = sig;
1470 method->name = name;
1473 if (name [0] == '.') {
1474 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1476 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1482 * mono_class_setup_methods:
1485 * Initializes the 'methods' array in the klass.
1486 * Calling this method should be avoided if possible since it allocates a lot
1487 * of long-living MonoMethod structures.
1488 * Methods belonging to an interface are assigned a sequential slot starting
1492 mono_class_setup_methods (MonoClass *class)
1495 MonoMethod **methods;
1500 mono_loader_lock ();
1502 if (class->methods) {
1503 mono_loader_unlock ();
1507 if (class->generic_class) {
1508 MonoClass *gklass = class->generic_class->container_class;
1510 mono_class_init (gklass);
1511 mono_class_setup_methods (gklass);
1513 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1514 class->method.count = gklass->method.count;
1515 methods = g_new0 (MonoMethod *, class->method.count + 1);
1517 for (i = 0; i < class->method.count; i++) {
1518 methods [i] = mono_class_inflate_generic_method_full (
1519 gklass->methods [i], class, mono_class_get_context (class));
1521 } else if (class->rank) {
1522 MonoMethod *amethod;
1523 MonoMethodSignature *sig;
1524 int count_generic = 0, first_generic = 0;
1527 class->method.count = 3 + (class->rank > 1? 2: 1);
1529 if (class->interface_count) {
1530 count_generic = generic_array_methods (class);
1531 first_generic = class->method.count;
1532 class->method.count += class->interface_count * count_generic;
1535 methods = mono_image_alloc0 (class->image, sizeof (MonoMethod*) * class->method.count);
1537 sig = mono_metadata_signature_alloc (class->image, class->rank);
1538 sig->ret = &mono_defaults.void_class->byval_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;
1544 amethod = create_array_method (class, ".ctor", sig);
1545 methods [method_num++] = amethod;
1546 if (class->rank > 1) {
1547 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1548 sig->ret = &mono_defaults.void_class->byval_arg;
1549 sig->pinvoke = TRUE;
1550 sig->hasthis = TRUE;
1551 for (i = 0; i < class->rank * 2; ++i)
1552 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1554 amethod = create_array_method (class, ".ctor", sig);
1555 methods [method_num++] = amethod;
1557 /* element Get (idx11, [idx2, ...]) */
1558 sig = mono_metadata_signature_alloc (class->image, class->rank);
1559 sig->ret = &class->element_class->byval_arg;
1560 sig->pinvoke = TRUE;
1561 sig->hasthis = TRUE;
1562 for (i = 0; i < class->rank; ++i)
1563 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1564 amethod = create_array_method (class, "Get", sig);
1565 methods [method_num++] = amethod;
1566 /* element& Address (idx11, [idx2, ...]) */
1567 sig = mono_metadata_signature_alloc (class->image, class->rank);
1568 sig->ret = &class->element_class->this_arg;
1569 sig->pinvoke = TRUE;
1570 sig->hasthis = TRUE;
1571 for (i = 0; i < class->rank; ++i)
1572 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1573 amethod = create_array_method (class, "Address", sig);
1574 methods [method_num++] = amethod;
1575 /* void Set (idx11, [idx2, ...], element) */
1576 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1577 sig->ret = &mono_defaults.void_class->byval_arg;
1578 sig->pinvoke = TRUE;
1579 sig->hasthis = TRUE;
1580 for (i = 0; i < class->rank; ++i)
1581 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1582 sig->params [i] = &class->element_class->byval_arg;
1583 amethod = create_array_method (class, "Set", sig);
1584 methods [method_num++] = amethod;
1586 for (i = 0; i < class->interface_count; i++)
1587 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1589 methods = mono_image_alloc (class->image, sizeof (MonoMethod*) * class->method.count);
1590 for (i = 0; i < class->method.count; ++i) {
1591 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1592 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1596 if (MONO_CLASS_IS_INTERFACE (class))
1597 for (i = 0; i < class->method.count; ++i)
1598 methods [i]->slot = i;
1600 /* Needed because of the double-checking locking pattern */
1601 mono_memory_barrier ();
1603 class->methods = methods;
1605 if (mono_debugger_class_loaded_methods_func)
1606 mono_debugger_class_loaded_methods_func (class);
1608 mono_loader_unlock ();
1612 * mono_class_get_method_by_index:
1614 * Returns class->methods [index], initializing class->methods if neccesary.
1616 * LOCKING: Acquires the loader lock.
1619 mono_class_get_method_by_index (MonoClass *class, int index)
1621 /* Avoid calling setup_methods () if possible */
1622 if (class->generic_class && !class->methods) {
1623 MonoClass *gklass = class->generic_class->container_class;
1626 m = mono_class_inflate_generic_method_full (
1627 gklass->methods [index], class, mono_class_get_context (class));
1629 * If setup_methods () is called later for this class, no duplicates are created,
1630 * since inflate_generic_method guarantees that only one instance of a method
1631 * is created for each context.
1634 mono_class_setup_methods (class);
1635 g_assert (m == class->methods [index]);
1639 mono_class_setup_methods (class);
1640 g_assert (index >= 0 && index < class->method.count);
1641 return class->methods [index];
1646 * mono_class_get_inflated_method:
1648 * Given an inflated class CLASS and a method METHOD which should be a method of
1649 * CLASS's generic definition, return the inflated method corresponding to METHOD.
1652 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
1654 MonoClass *gklass = class->generic_class->container_class;
1657 mono_class_setup_methods (gklass);
1658 for (i = 0; i < gklass->method.count; ++i) {
1659 if (gklass->methods [i] == method) {
1661 return class->methods [i];
1663 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
1671 * mono_class_get_vtable_entry:
1673 * Returns class->vtable [offset], computing it if neccesary.
1674 * LOCKING: Acquires the loader lock.
1677 mono_class_get_vtable_entry (MonoClass *class, int offset)
1679 if (class->generic_class) {
1680 MonoClass *gklass = class->generic_class->container_class;
1681 mono_class_setup_vtable (gklass);
1682 if (gklass->vtable [offset]->wrapper_type != MONO_WRAPPER_STATIC_RGCTX_INVOKE)
1683 return mono_class_inflate_generic_method_full (gklass->vtable [offset], class, mono_class_get_context (class));
1686 if (class->rank == 1) {
1688 * szarrays do not overwrite any methods of Array, so we can avoid
1689 * initializing their vtables in some cases.
1691 mono_class_setup_vtable (class->parent);
1692 if (offset < class->parent->vtable_size)
1693 return class->parent->vtable [offset];
1696 mono_class_setup_vtable (class);
1697 return class->vtable [offset];
1701 mono_class_setup_properties (MonoClass *class)
1703 guint startm, endm, i, j;
1704 guint32 cols [MONO_PROPERTY_SIZE];
1705 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1706 MonoProperty *properties;
1709 if (class->properties)
1712 mono_loader_lock ();
1714 if (class->properties) {
1715 mono_loader_unlock ();
1719 if (class->generic_class) {
1720 MonoClass *gklass = class->generic_class->container_class;
1722 mono_class_init (gklass);
1723 mono_class_setup_properties (gklass);
1725 class->property = gklass->property;
1727 properties = g_new0 (MonoProperty, class->property.count + 1);
1729 for (i = 0; i < class->property.count; i++) {
1730 MonoProperty *prop = &properties [i];
1732 *prop = gklass->properties [i];
1735 prop->get = mono_class_inflate_generic_method_full (
1736 prop->get, class, mono_class_get_context (class));
1738 prop->set = mono_class_inflate_generic_method_full (
1739 prop->set, class, mono_class_get_context (class));
1741 prop->parent = class;
1744 class->property.first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1745 class->property.count = last - class->property.first;
1747 if (class->property.count)
1748 mono_class_setup_methods (class);
1750 properties = mono_image_alloc0 (class->image, sizeof (MonoProperty) * class->property.count);
1751 for (i = class->property.first; i < last; ++i) {
1752 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
1753 properties [i - class->property.first].parent = class;
1754 properties [i - class->property.first].attrs = cols [MONO_PROPERTY_FLAGS];
1755 properties [i - class->property.first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
1757 startm = mono_metadata_methods_from_property (class->image, i, &endm);
1758 for (j = startm; j < endm; ++j) {
1761 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1763 if (class->image->uncompressed_metadata)
1764 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1765 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1767 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1769 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1770 case METHOD_SEMANTIC_SETTER:
1771 properties [i - class->property.first].set = method;
1773 case METHOD_SEMANTIC_GETTER:
1774 properties [i - class->property.first].get = method;
1782 /*Flush any pending writes as we do double checked locking on class->properties */
1783 mono_memory_barrier ();
1785 /* Leave this assignment as the last op in the function */
1786 class->properties = properties;
1788 mono_loader_unlock ();
1792 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
1794 MonoMethod **om, **retval;
1797 for (om = methods, count = 0; *om; ++om, ++count)
1800 retval = g_new0 (MonoMethod*, count + 1);
1802 for (om = methods, count = 0; *om; ++om, ++count)
1803 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
1809 mono_class_setup_events (MonoClass *class)
1811 guint startm, endm, i, j;
1812 guint32 cols [MONO_EVENT_SIZE];
1813 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1820 mono_loader_lock ();
1822 if (class->events) {
1823 mono_loader_unlock ();
1827 if (class->generic_class) {
1828 MonoClass *gklass = class->generic_class->container_class;
1829 MonoGenericContext *context;
1831 mono_class_setup_events (gklass);
1832 class->event = gklass->event;
1834 class->events = g_new0 (MonoEvent, class->event.count);
1836 if (class->event.count)
1837 context = mono_class_get_context (class);
1839 for (i = 0; i < class->event.count; i++) {
1840 MonoEvent *event = &class->events [i];
1841 MonoEvent *gevent = &gklass->events [i];
1843 event->parent = class;
1844 event->name = gevent->name;
1845 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
1846 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
1847 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
1848 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
1849 event->attrs = gevent->attrs;
1852 mono_loader_unlock ();
1856 class->event.first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1857 class->event.count = last - class->event.first;
1859 if (class->event.count)
1860 mono_class_setup_methods (class);
1862 events = mono_image_alloc0 (class->image, sizeof (MonoEvent) * class->event.count);
1863 for (i = class->event.first; i < last; ++i) {
1864 MonoEvent *event = &events [i - class->event.first];
1866 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
1867 event->parent = class;
1868 event->attrs = cols [MONO_EVENT_FLAGS];
1869 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
1871 startm = mono_metadata_methods_from_event (class->image, i, &endm);
1872 for (j = startm; j < endm; ++j) {
1875 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1877 if (class->image->uncompressed_metadata)
1878 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1879 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1881 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1883 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1884 case METHOD_SEMANTIC_ADD_ON:
1885 event->add = method;
1887 case METHOD_SEMANTIC_REMOVE_ON:
1888 event->remove = method;
1890 case METHOD_SEMANTIC_FIRE:
1891 event->raise = method;
1893 case METHOD_SEMANTIC_OTHER: {
1896 if (event->other == NULL) {
1897 event->other = g_new0 (MonoMethod*, 2);
1899 while (event->other [n])
1901 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
1903 event->other [n] = method;
1904 /* NULL terminated */
1905 event->other [n + 1] = NULL;
1913 /*Flush any pending writes as we do double checked locking on class->properties */
1914 mono_memory_barrier ();
1916 /* Leave this assignment as the last op in the function */
1917 class->events = events;
1919 mono_loader_unlock ();
1923 * Global pool of interface IDs, represented as a bitset.
1924 * LOCKING: this is supposed to be accessed with the loader lock held.
1926 static MonoBitSet *global_interface_bitset = NULL;
1929 * mono_unload_interface_ids:
1930 * @bitset: bit set of interface IDs
1932 * When an image is unloaded, the interface IDs associated with
1933 * the image are put back in the global pool of IDs so the numbers
1937 mono_unload_interface_ids (MonoBitSet *bitset)
1939 mono_loader_lock ();
1940 mono_bitset_sub (global_interface_bitset, bitset);
1941 mono_loader_unlock ();
1945 * mono_get_unique_iid:
1948 * Assign a unique integer ID to the interface represented by @class.
1949 * The ID will positive and as small as possible.
1950 * LOCKING: this is supposed to be called with the loader lock held.
1951 * Returns: the new ID.
1954 mono_get_unique_iid (MonoClass *class)
1958 g_assert (MONO_CLASS_IS_INTERFACE (class));
1960 if (!global_interface_bitset) {
1961 global_interface_bitset = mono_bitset_new (128, 0);
1964 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
1966 int old_size = mono_bitset_size (global_interface_bitset);
1967 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
1968 mono_bitset_free (global_interface_bitset);
1969 global_interface_bitset = new_set;
1972 mono_bitset_set (global_interface_bitset, iid);
1973 /* set the bit also in the per-image set */
1974 if (class->image->interface_bitset) {
1975 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
1976 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
1977 mono_bitset_free (class->image->interface_bitset);
1978 class->image->interface_bitset = new_set;
1981 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
1983 mono_bitset_set (class->image->interface_bitset, iid);
1985 if (mono_print_vtable) {
1987 char *type_name = mono_type_full_name (&class->byval_arg);
1988 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
1989 generic_id = class->generic_class->context.class_inst->id;
1990 g_assert (generic_id != 0);
1994 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
1998 g_assert (iid <= 65535);
2003 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res)
2008 for (i = 0; i < klass->interface_count; i++) {
2009 ic = klass->interfaces [i];
2012 *res = g_ptr_array_new ();
2013 g_ptr_array_add (*res, ic);
2014 mono_class_init (ic);
2016 collect_implemented_interfaces_aux (ic, res);
2021 mono_class_get_implemented_interfaces (MonoClass *klass)
2023 GPtrArray *res = NULL;
2025 collect_implemented_interfaces_aux (klass, &res);
2030 compare_interface_ids (const void *p_key, const void *p_element) {
2031 const MonoClass *key = p_key;
2032 const MonoClass *element = *(MonoClass**) p_element;
2034 return (key->interface_id - element->interface_id);
2038 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2039 MonoClass **result = bsearch (
2041 klass->interfaces_packed,
2042 klass->interface_offsets_count,
2043 sizeof (MonoClass *),
2044 compare_interface_ids);
2046 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2053 print_implemented_interfaces (MonoClass *klass) {
2054 GPtrArray *ifaces = NULL;
2056 int ancestor_level = 0;
2058 printf ("Packed interface table for class %s has size %d\n", klass->name, klass->interface_offsets_count);
2059 for (i = 0; i < klass->interface_offsets_count; i++)
2060 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2061 klass->interfaces_packed [i]->interface_id,
2062 klass->interface_offsets_packed [i],
2063 klass->interfaces_packed [i]->method.count,
2064 klass->interfaces_packed [i]->name_space,
2065 klass->interfaces_packed [i]->name );
2066 printf ("Interface flags: ");
2067 for (i = 0; i <= klass->max_interface_id; i++)
2068 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2069 printf ("(%d,T)", i);
2071 printf ("(%d,F)", i);
2073 printf ("Dump interface flags:");
2074 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2075 printf (" %02X", klass->interface_bitmap [i]);
2077 while (klass != NULL) {
2078 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2079 ifaces = mono_class_get_implemented_interfaces (klass);
2081 for (i = 0; i < ifaces->len; i++) {
2082 MonoClass *ic = g_ptr_array_index (ifaces, i);
2083 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2084 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2086 mono_class_interface_offset (klass, ic),
2091 g_ptr_array_free (ifaces, TRUE);
2094 klass = klass->parent;
2099 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2102 args [0] = &arg0->byval_arg;
2104 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2108 array_class_get_if_rank (MonoClass *class, guint rank)
2110 return rank ? mono_array_class_get (class, rank) : class;
2114 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2116 valuetype_types [0] = eclass;
2117 if (eclass == mono_defaults.int16_class)
2118 valuetype_types [1] = mono_defaults.uint16_class;
2119 else if (eclass == mono_defaults.uint16_class)
2120 valuetype_types [1] = mono_defaults.int16_class;
2121 else if (eclass == mono_defaults.int32_class)
2122 valuetype_types [1] = mono_defaults.uint32_class;
2123 else if (eclass == mono_defaults.uint32_class)
2124 valuetype_types [1] = mono_defaults.int32_class;
2125 else if (eclass == mono_defaults.int64_class)
2126 valuetype_types [1] = mono_defaults.uint64_class;
2127 else if (eclass == mono_defaults.uint64_class)
2128 valuetype_types [1] = mono_defaults.int64_class;
2129 else if (eclass == mono_defaults.byte_class)
2130 valuetype_types [1] = mono_defaults.sbyte_class;
2131 else if (eclass == mono_defaults.sbyte_class)
2132 valuetype_types [1] = mono_defaults.byte_class;
2133 else if (eclass->enumtype && eclass->enum_basetype)
2134 valuetype_types [1] = mono_class_from_mono_type (eclass->enum_basetype);
2137 /* this won't be needed once bug #325495 is completely fixed
2138 * though we'll need something similar to know which interfaces to allow
2139 * in arrays when they'll be lazyly created
2141 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2142 * MS returns diferrent types based on which instance is called. For example:
2143 * object obj = new byte[10][];
2144 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2145 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2148 * Fixing this should kill quite some code, save some bits and improve compatbility.
2151 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2153 MonoClass *eclass = class->element_class;
2154 static MonoClass* generic_icollection_class = NULL;
2155 static MonoClass* generic_ienumerable_class = NULL;
2156 static MonoClass* generic_ienumerator_class = NULL;
2157 MonoClass *valuetype_types[2] = { NULL, NULL };
2158 MonoClass **interfaces = NULL;
2159 int i, interface_count, real_count, original_rank;
2161 gboolean internal_enumerator;
2162 gboolean eclass_is_valuetype;
2164 if (!mono_defaults.generic_ilist_class) {
2168 internal_enumerator = FALSE;
2169 eclass_is_valuetype = FALSE;
2170 original_rank = eclass->rank;
2171 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2172 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2174 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2176 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2177 original_rank = eclass->rank;
2178 eclass = eclass->element_class;
2179 internal_enumerator = TRUE;
2180 *is_enumerator = TRUE;
2188 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2189 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2191 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2193 if (!generic_icollection_class) {
2194 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2195 "System.Collections.Generic", "ICollection`1");
2196 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2197 "System.Collections.Generic", "IEnumerable`1");
2198 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2199 "System.Collections.Generic", "IEnumerator`1");
2202 mono_class_init (eclass);
2205 * Arrays in 2.0 need to implement a number of generic interfaces
2206 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2207 * on the element class). We collect the types needed to build the
2208 * instantiations in interfaces at intervals of 3, because 3 are
2209 * the generic interfaces needed to implement.
2211 if (eclass->valuetype) {
2212 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2214 /* IList, ICollection, IEnumerable */
2215 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2216 if (internal_enumerator) {
2218 if (valuetype_types [1])
2222 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2223 interfaces [0] = valuetype_types [0];
2224 if (valuetype_types [1])
2225 interfaces [3] = valuetype_types [1];
2227 eclass_is_valuetype = TRUE;
2230 int idepth = eclass->idepth;
2231 if (!internal_enumerator)
2233 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2234 /* we add object for interfaces and the supertypes for the other
2235 * types. The last of the supertypes is the element class itself which we
2236 * already created the explicit interfaces for (so we include it for IEnumerator
2237 * and exclude it for arrays).
2239 if (MONO_CLASS_IS_INTERFACE (eclass))
2242 interface_count += idepth;
2243 if (eclass->rank && eclass->element_class->valuetype) {
2244 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2245 if (valuetype_types [1])
2248 /* IList, ICollection, IEnumerable */
2249 interface_count *= 3;
2250 real_count = interface_count;
2251 if (internal_enumerator) {
2252 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2253 if (valuetype_types [1])
2256 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2257 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2258 interfaces [0] = mono_defaults.object_class;
2262 for (i = 0; i < idepth; i++) {
2263 mono_class_init (eclass->supertypes [i]);
2264 interfaces [j] = eclass->supertypes [i];
2268 if (all_interfaces) {
2269 for (i = 0; i < eclass->interface_offsets_count; i++) {
2270 interfaces [j] = eclass->interfaces_packed [i];
2274 for (i = 0; i < eclass->interface_count; i++) {
2275 interfaces [j] = eclass->interfaces [i];
2279 if (valuetype_types [1]) {
2280 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2285 /* instantiate the generic interfaces */
2286 for (i = 0; i < interface_count; i += 3) {
2287 MonoClass *iface = interfaces [i];
2289 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2290 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2291 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2293 if (internal_enumerator) {
2295 /* instantiate IEnumerator<iface> */
2296 for (i = 0; i < interface_count; i++) {
2297 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2299 j = interface_count;
2300 if (!eclass_is_valuetype) {
2301 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2302 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2305 for (i = 0; i < eclass->idepth; i++) {
2306 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2310 for (i = 0; i < eclass->interface_offsets_count; i++) {
2311 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2315 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2317 if (valuetype_types [1])
2318 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2321 for (i = 0; i < real_count; ++i) {
2322 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2323 g_print ("%s implements %s\n", class->name, name);
2332 find_array_interface (MonoClass *klass, const char *name)
2335 for (i = 0; i < klass->interface_count; ++i) {
2336 if (strcmp (klass->interfaces [i]->name, name) == 0)
2343 * LOCKING: this is supposed to be called with the loader lock held.
2346 setup_interface_offsets (MonoClass *class, int cur_slot)
2350 MonoClass **interfaces_full;
2351 int *interface_offsets_full;
2353 int interface_offsets_count;
2354 MonoClass **array_interfaces;
2355 int num_array_interfaces;
2356 int is_enumerator = FALSE;
2359 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
2360 * implicit interfaces have the property that they are assigned the same slot in the
2361 * vtables for compatible interfaces
2363 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
2365 /* compute maximum number of slots and maximum interface id */
2367 for (k = class; k ; k = k->parent) {
2368 for (i = 0; i < k->interface_count; i++) {
2369 ic = k->interfaces [i];
2372 mono_class_init (ic);
2374 if (max_iid < ic->interface_id)
2375 max_iid = ic->interface_id;
2377 ifaces = mono_class_get_implemented_interfaces (k);
2379 for (i = 0; i < ifaces->len; ++i) {
2380 ic = g_ptr_array_index (ifaces, i);
2381 if (max_iid < ic->interface_id)
2382 max_iid = ic->interface_id;
2384 g_ptr_array_free (ifaces, TRUE);
2387 for (i = 0; i < num_array_interfaces; ++i) {
2388 ic = array_interfaces [i];
2389 mono_class_init (ic);
2390 if (max_iid < ic->interface_id)
2391 max_iid = ic->interface_id;
2394 if (MONO_CLASS_IS_INTERFACE (class)) {
2395 if (max_iid < class->interface_id)
2396 max_iid = class->interface_id;
2398 class->max_interface_id = max_iid;
2399 /* compute vtable offset for interfaces */
2400 interfaces_full = g_malloc (sizeof (MonoClass*) * (max_iid + 1));
2401 interface_offsets_full = g_malloc (sizeof (int) * (max_iid + 1));
2403 for (i = 0; i <= max_iid; i++) {
2404 interfaces_full [i] = NULL;
2405 interface_offsets_full [i] = -1;
2408 ifaces = mono_class_get_implemented_interfaces (class);
2410 for (i = 0; i < ifaces->len; ++i) {
2411 ic = g_ptr_array_index (ifaces, i);
2412 interfaces_full [ic->interface_id] = ic;
2413 interface_offsets_full [ic->interface_id] = cur_slot;
2414 cur_slot += ic->method.count;
2416 g_ptr_array_free (ifaces, TRUE);
2419 for (k = class->parent; k ; k = k->parent) {
2420 ifaces = mono_class_get_implemented_interfaces (k);
2422 for (i = 0; i < ifaces->len; ++i) {
2423 ic = g_ptr_array_index (ifaces, i);
2425 if (interface_offsets_full [ic->interface_id] == -1) {
2426 int io = mono_class_interface_offset (k, ic);
2430 interfaces_full [ic->interface_id] = ic;
2431 interface_offsets_full [ic->interface_id] = io;
2434 g_ptr_array_free (ifaces, TRUE);
2438 if (MONO_CLASS_IS_INTERFACE (class)) {
2439 interfaces_full [class->interface_id] = class;
2440 interface_offsets_full [class->interface_id] = cur_slot;
2443 if (num_array_interfaces) {
2444 if (is_enumerator) {
2445 int ienumerator_offset;
2446 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
2447 ienumerator_offset = interface_offsets_full [class->interfaces [ienumerator_idx]->interface_id];
2448 for (i = 0; i < num_array_interfaces; ++i) {
2449 ic = array_interfaces [i];
2450 interfaces_full [ic->interface_id] = ic;
2451 if (strcmp (ic->name, "IEnumerator`1") == 0)
2452 interface_offsets_full [ic->interface_id] = ienumerator_offset;
2454 g_assert_not_reached ();
2455 /*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);*/
2458 int ilist_offset, icollection_offset, ienumerable_offset;
2459 int ilist_iface_idx = find_array_interface (class, "IList`1");
2460 int icollection_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "ICollection`1");
2461 int ienumerable_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "IEnumerable`1");
2462 ilist_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interface_id];
2463 icollection_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [icollection_iface_idx]->interface_id];
2464 ienumerable_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [ienumerable_iface_idx]->interface_id];
2465 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
2466 for (i = 0; i < num_array_interfaces; ++i) {
2467 ic = array_interfaces [i];
2468 interfaces_full [ic->interface_id] = ic;
2469 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
2470 interface_offsets_full [ic->interface_id] = ilist_offset;
2471 else if (strcmp (ic->name, "ICollection`1") == 0)
2472 interface_offsets_full [ic->interface_id] = icollection_offset;
2473 else if (strcmp (ic->name, "IEnumerable`1") == 0)
2474 interface_offsets_full [ic->interface_id] = ienumerable_offset;
2476 g_assert_not_reached ();
2477 /*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);*/
2482 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2483 if (interface_offsets_full [i] != -1) {
2484 interface_offsets_count ++;
2489 * We might get called twice: once from mono_class_init () then once from
2490 * mono_class_setup_vtable ().
2492 if (class->interfaces_packed) {
2493 g_assert (class->interface_offsets_count == interface_offsets_count);
2495 class->interface_offsets_count = interface_offsets_count;
2496 class->interfaces_packed = mono_image_alloc (class->image, sizeof (MonoClass*) * interface_offsets_count);
2497 class->interface_offsets_packed = mono_image_alloc (class->image, sizeof (guint16) * interface_offsets_count);
2498 class->interface_bitmap = mono_image_alloc0 (class->image, (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0));
2499 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2500 if (interface_offsets_full [i] != -1) {
2501 class->interface_bitmap [i >> 3] |= (1 << (i & 7));
2502 class->interfaces_packed [interface_offsets_count] = interfaces_full [i];
2503 class->interface_offsets_packed [interface_offsets_count] = interface_offsets_full [i];
2504 /*if (num_array_interfaces)
2505 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]);*/
2506 interface_offsets_count ++;
2511 g_free (interfaces_full);
2512 g_free (interface_offsets_full);
2513 g_free (array_interfaces);
2515 //printf ("JUST DONE: ");
2516 //print_implemented_interfaces (class);
2522 * Setup interface offsets for interfaces. Used by Ref.Emit.
2525 mono_class_setup_interface_offsets (MonoClass *class)
2527 mono_loader_lock ();
2529 setup_interface_offsets (class, 0);
2531 mono_loader_unlock ();
2535 * mono_class_setup_vtable:
2537 * Creates the generic vtable of CLASS.
2538 * Initializes the following fields in MonoClass:
2541 * Plus all the fields initialized by setup_interface_offsets ().
2542 * If there is an error during vtable construction, class->exception_type is set.
2544 * LOCKING: Acquires the loader lock.
2547 mono_class_setup_vtable (MonoClass *class)
2549 MonoMethod **overrides;
2550 MonoGenericContext *context;
2559 if (mono_debug_using_mono_debugger ())
2560 /* The debugger currently depends on this */
2561 mono_class_setup_methods (class);
2563 if (MONO_CLASS_IS_INTERFACE (class)) {
2564 /* This sets method->slot for all methods if this is an interface */
2565 mono_class_setup_methods (class);
2569 mono_loader_lock ();
2571 if (class->vtable) {
2572 mono_loader_unlock ();
2576 mono_stats.generic_vtable_count ++;
2578 if (class->generic_class) {
2579 context = mono_class_get_context (class);
2580 type_token = class->generic_class->container_class->type_token;
2582 context = (MonoGenericContext *) class->generic_container;
2583 type_token = class->type_token;
2586 if (class->image->dynamic) {
2587 if (class->generic_class) {
2588 MonoClass *gklass = class->generic_class->container_class;
2590 mono_reflection_get_dynamic_overrides (gklass, &overrides, &onum);
2591 for (i = 0; i < onum; ++i) {
2592 MonoMethod *override = overrides [(i * 2) + 1];
2593 MonoMethod *inflated = NULL;
2596 for (j = 0; j < class->method.count; ++j) {
2597 if (gklass->methods [j] == override) {
2598 inflated = class->methods [j];
2602 g_assert (inflated);
2604 overrides [(i * 2) + 1] = inflated;
2607 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
2610 /* The following call fails if there are missing methods in the type */
2611 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
2615 mono_class_setup_vtable_general (class, overrides, onum);
2619 mono_loader_unlock ();
2625 check_core_clr_override_method (MonoClass *class, MonoMethod *override, MonoMethod *base)
2627 MonoSecurityCoreCLRLevel override_level = mono_security_core_clr_method_level (override, FALSE);
2628 MonoSecurityCoreCLRLevel base_level = mono_security_core_clr_method_level (base, FALSE);
2630 if (override_level != base_level && base_level == MONO_SECURITY_CORE_CLR_CRITICAL)
2631 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2635 #define DEBUG_INTERFACE_VTABLE_CODE 0
2636 #define TRACE_INTERFACE_VTABLE_CODE 0
2637 #define VERIFY_INTERFACE_VTABLE_CODE 0
2639 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2640 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
2644 #define DEBUG_INTERFACE_VTABLE(stmt)
2647 #if TRACE_INTERFACE_VTABLE_CODE
2648 #define TRACE_INTERFACE_VTABLE(stmt) do {\
2652 #define TRACE_INTERFACE_VTABLE(stmt)
2655 #if VERIFY_INTERFACE_VTABLE_CODE
2656 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
2660 #define VERIFY_INTERFACE_VTABLE(stmt)
2664 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2666 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
2670 GString *res = g_string_new ("");
2672 g_string_append_c (res, '(');
2673 for (i = 0; i < sig->param_count; ++i) {
2675 g_string_append_c (res, ',');
2676 mono_type_get_desc (res, sig->params [i], include_namespace);
2678 g_string_append (res, ")=>");
2679 if (sig->ret != NULL) {
2680 mono_type_get_desc (res, sig->ret, include_namespace);
2682 g_string_append (res, "NULL");
2685 g_string_free (res, FALSE);
2689 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
2690 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
2691 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
2692 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
2700 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) {
2701 if (strcmp (im->name, cm->name) == 0) {
2702 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
2703 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
2706 if (! slot_is_empty) {
2707 if (require_newslot) {
2708 if (! interface_is_explicitly_implemented_by_class) {
2709 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
2712 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2713 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
2717 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
2720 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2721 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
2722 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2723 TRACE_INTERFACE_VTABLE (printf ("]"));
2726 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
2727 /* CAS - SecurityAction.InheritanceDemand on interface */
2728 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2729 mono_secman_inheritancedemand_method (cm, im);
2732 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2733 check_core_clr_override_method (class, cm, im);
2734 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
2737 MonoClass *ic = im->klass;
2738 const char *ic_name_space = ic->name_space;
2739 const char *ic_name = ic->name;
2742 if (! require_newslot) {
2743 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
2746 if (cm->klass->rank == 0) {
2747 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
2750 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2751 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
2752 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2753 TRACE_INTERFACE_VTABLE (printf ("]"));
2756 if (mono_class_get_image (ic) != mono_defaults.corlib) {
2757 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
2760 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
2761 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
2764 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
2765 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
2769 subname = strstr (cm->name, ic_name_space);
2770 if (subname != cm->name) {
2771 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
2774 subname += strlen (ic_name_space);
2775 if (subname [0] != '.') {
2776 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
2780 if (strstr (subname, ic_name) != subname) {
2781 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
2784 subname += strlen (ic_name);
2785 if (subname [0] != '.') {
2786 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
2790 if (strcmp (subname, im->name) != 0) {
2791 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
2795 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
2796 /* CAS - SecurityAction.InheritanceDemand on interface */
2797 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2798 mono_secman_inheritancedemand_method (cm, im);
2801 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2802 check_core_clr_override_method (class, cm, im);
2804 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
2809 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2811 foreach_override (gpointer key, gpointer value, gpointer user_data) {
2812 MonoMethod *method = key;
2813 MonoMethod *override = value;
2814 MonoClass *method_class = mono_method_get_class (method);
2815 MonoClass *override_class = mono_method_get_class (override);
2817 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
2818 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
2819 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
2822 print_overrides (GHashTable *override_map, const char *message) {
2824 printf ("Override map \"%s\" START:\n", message);
2825 g_hash_table_foreach (override_map, foreach_override, NULL);
2826 printf ("Override map \"%s\" END.\n", message);
2828 printf ("Override map \"%s\" EMPTY.\n", message);
2832 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
2833 char *full_name = mono_type_full_name (&class->byval_arg);
2837 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
2839 if (print_interfaces) {
2840 print_implemented_interfaces (class);
2841 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
2844 if (class->parent) {
2845 parent_size = class->parent->vtable_size;
2849 for (i = 0; i < size; ++i) {
2850 MonoMethod *cm = vtable [i];
2852 char *cm_name = mono_method_full_name (cm, TRUE);
2853 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
2854 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
2863 #if VERIFY_INTERFACE_VTABLE_CODE
2865 mono_method_try_get_vtable_index (MonoMethod *method)
2867 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
2868 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
2869 if (imethod->declaring->is_generic)
2870 return imethod->declaring->slot;
2872 return method->slot;
2876 mono_class_verify_vtable (MonoClass *class)
2879 char *full_name = mono_type_full_name (&class->byval_arg);
2881 printf ("*** Verifying VTable of class '%s' \n", full_name);
2885 if (!class->methods)
2888 for (i = 0; i < class->method.count; ++i) {
2889 MonoMethod *cm = class->methods [i];
2892 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
2896 full_name = mono_method_full_name (cm, TRUE);
2898 slot = mono_method_try_get_vtable_index (cm);
2900 if (slot >= class->vtable_size) {
2901 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
2905 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot] && class->vtable [slot]->wrapper_type != MONO_WRAPPER_STATIC_RGCTX_INVOKE)) {
2906 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
2907 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
2908 g_free (other_name);
2911 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
2918 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
2920 char *method_signature;
2922 for (index = 0; index < onum; ++index) {
2923 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
2924 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
2926 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
2927 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
2928 mono_type_get_name (&ic->byval_arg), im->name, method_signature, class->name_space, class->name);
2929 g_free (method_signature);
2930 mono_class_setup_methods (class);
2931 for (index = 0; index < class->method.count; ++index) {
2932 MonoMethod *cm = class->methods [index];
2933 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
2935 printf ("METHOD %s(%s)\n", cm->name, method_signature);
2936 g_free (method_signature);
2941 * LOCKING: this is supposed to be called with the loader lock held.
2944 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
2947 MonoMethod **vtable;
2948 int i, max_vtsize = 0, max_iid, cur_slot = 0;
2949 GPtrArray *ifaces = NULL;
2950 GHashTable *override_map = NULL;
2951 gboolean security_enabled = mono_is_security_manager_active ();
2953 gpointer class_iter;
2954 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
2955 int first_non_interface_slot;
2961 ifaces = mono_class_get_implemented_interfaces (class);
2963 for (i = 0; i < ifaces->len; i++) {
2964 MonoClass *ic = g_ptr_array_index (ifaces, i);
2965 max_vtsize += ic->method.count;
2967 g_ptr_array_free (ifaces, TRUE);
2971 if (class->parent) {
2972 mono_class_init (class->parent);
2973 mono_class_setup_vtable (class->parent);
2974 max_vtsize += class->parent->vtable_size;
2975 cur_slot = class->parent->vtable_size;
2978 max_vtsize += class->method.count;
2980 vtable = alloca (sizeof (gpointer) * max_vtsize);
2981 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
2983 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
2985 cur_slot = setup_interface_offsets (class, cur_slot);
2986 max_iid = class->max_interface_id;
2987 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
2989 /* Optimized version for generic instances */
2990 if (class->generic_class) {
2991 MonoClass *gklass = class->generic_class->container_class;
2992 gboolean usable = TRUE;
2994 mono_class_setup_vtable (gklass);
2995 for (i = 0; i < gklass->vtable_size; ++i)
2996 if (gklass->vtable [i] && gklass->vtable [i]->wrapper_type == MONO_WRAPPER_STATIC_RGCTX_INVOKE)
3000 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * gklass->vtable_size);
3001 class->vtable_size = gklass->vtable_size;
3002 for (i = 0; i < gklass->vtable_size; ++i)
3003 if (gklass->vtable [i])
3004 tmp [i] = mono_class_inflate_generic_method_full (gklass->vtable [i], class, mono_class_get_context (class));
3005 mono_memory_barrier ();
3006 class->vtable = tmp;
3012 if (class->parent && class->parent->vtable_size) {
3013 MonoClass *parent = class->parent;
3016 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
3018 // Also inherit parent interface vtables, just as a starting point.
3019 // This is needed otherwise bug-77127.exe fails when the property methods
3020 // have different names in the iterface and the class, because for child
3021 // classes the ".override" information is not used anymore.
3022 for (i = 0; i < parent->interface_offsets_count; i++) {
3023 MonoClass *parent_interface = parent->interfaces_packed [i];
3024 int interface_offset = mono_class_interface_offset (class, parent_interface);
3026 if (interface_offset >= parent->vtable_size) {
3027 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
3030 mono_class_setup_methods (parent_interface);
3031 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
3032 for (j = 0; j < parent_interface->method.count; j++) {
3033 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
3034 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
3035 parent_interface_offset + j, parent_interface_offset, j,
3036 interface_offset + j, interface_offset, j));
3043 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
3044 /* override interface methods */
3045 for (i = 0; i < onum; i++) {
3046 MonoMethod *decl = overrides [i*2];
3047 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
3049 dslot = mono_method_get_vtable_slot (decl) + mono_class_interface_offset (class, decl->klass);
3050 vtable [dslot] = overrides [i*2 + 1];
3051 vtable [dslot]->slot = dslot;
3053 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3055 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
3057 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3058 check_core_clr_override_method (class, vtable [dslot], decl);
3061 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
3062 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
3064 // Loop on all implemented interfaces...
3065 for (i = 0; i < class->interface_offsets_count; i++) {
3066 MonoClass *parent = class->parent;
3068 gboolean interface_is_explicitly_implemented_by_class;
3071 ic = class->interfaces_packed [i];
3072 ic_offset = mono_class_interface_offset (class, ic);
3074 mono_class_setup_methods (ic);
3076 // Check if this interface is explicitly implemented (instead of just inherited)
3077 if (parent != NULL) {
3078 int implemented_interfaces_index;
3079 interface_is_explicitly_implemented_by_class = FALSE;
3080 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
3081 if (ic == class->interfaces [implemented_interfaces_index]) {
3082 interface_is_explicitly_implemented_by_class = TRUE;
3087 interface_is_explicitly_implemented_by_class = TRUE;
3090 // Loop on all interface methods...
3091 for (im_index = 0; im_index < ic->method.count; im_index++) {
3092 MonoMethod *im = ic->methods [im_index];
3093 int im_slot = ic_offset + im->slot;
3094 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
3096 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3099 // If there is an explicit implementation, just use it right away,
3100 // otherwise look for a matching method
3101 if (override_im == NULL) {
3106 // First look for a suitable method among the class methods
3108 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
3109 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)));
3110 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
3111 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
3112 vtable [im_slot] = cm;
3113 /* Why do we need this? */
3118 TRACE_INTERFACE_VTABLE (printf ("\n"));
3121 // If the slot is still empty, look in all the inherited virtual methods...
3122 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
3123 MonoClass *parent = class->parent;
3124 // Reverse order, so that last added methods are preferred
3125 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
3126 MonoMethod *cm = parent->vtable [cm_index];
3128 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));
3129 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
3130 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
3131 vtable [im_slot] = cm;
3132 /* Why do we need this? */
3138 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
3142 g_assert (vtable [im_slot] == override_im);
3147 // If the class is not abstract, check that all its interface slots are full.
3148 // The check is done here and not directly at the end of the loop above because
3149 // it can happen (for injected generic array interfaces) that the same slot is
3150 // processed multiple times (those interfaces have overlapping slots), and it
3151 // will not always be the first pass the one that fills the slot.
3152 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3153 for (i = 0; i < class->interface_offsets_count; i++) {
3157 ic = class->interfaces_packed [i];
3158 ic_offset = mono_class_interface_offset (class, ic);
3160 for (im_index = 0; im_index < ic->method.count; im_index++) {
3161 MonoMethod *im = ic->methods [im_index];
3162 int im_slot = ic_offset + im->slot;
3164 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3167 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
3168 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
3169 if (vtable [im_slot] == NULL) {
3170 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
3171 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3173 g_hash_table_destroy (override_map);
3180 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
3182 while ((cm = mono_class_get_virtual_methods (class, &class_iter))) {
3184 * If the method is REUSE_SLOT, we must check in the
3185 * base class for a method to override.
3187 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3189 for (k = class->parent; k ; k = k->parent) {
3194 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
3195 MonoMethodSignature *cmsig, *m1sig;
3197 cmsig = mono_method_signature (cm);
3198 m1sig = mono_method_signature (m1);
3200 if (!cmsig || !m1sig) {
3201 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3205 if (!strcmp(cm->name, m1->name) &&
3206 mono_metadata_signature_equal (cmsig, m1sig)) {
3208 /* CAS - SecurityAction.InheritanceDemand */
3209 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3210 mono_secman_inheritancedemand_method (cm, m1);
3213 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3214 check_core_clr_override_method (class, cm, m1);
3216 slot = mono_method_get_vtable_slot (m1);
3217 g_assert (cm->slot < max_vtsize);
3219 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3220 g_hash_table_insert (override_map, m1, cm);
3232 cm->slot = cur_slot++;
3234 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
3235 vtable [cm->slot] = cm;
3238 /* override non interface methods */
3239 for (i = 0; i < onum; i++) {
3240 MonoMethod *decl = overrides [i*2];
3241 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
3242 g_assert (decl->slot != -1);
3243 vtable [decl->slot] = overrides [i*2 + 1];
3244 overrides [i * 2 + 1]->slot = decl->slot;
3246 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3247 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
3249 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3250 check_core_clr_override_method (class, vtable [decl->slot], decl);
3255 * If a method occupies more than one place in the vtable, and it is
3256 * overriden, then change the other occurances too.
3259 for (i = 0; i < max_vtsize; ++i)
3261 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
3266 g_hash_table_destroy (override_map);
3269 if (class->generic_class) {
3270 MonoClass *gklass = class->generic_class->container_class;
3272 mono_class_init (gklass);
3274 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
3276 /* Check that the vtable_size value computed in mono_class_init () is correct */
3277 if (class->vtable_size)
3278 g_assert (cur_slot == class->vtable_size);
3279 class->vtable_size = cur_slot;
3282 /* FIXME: only do this if the class is actually sharable */
3283 if (class->valuetype && (class->generic_class || class->generic_container) &&
3284 mono_class_generic_sharing_enabled (class)) {
3285 for (i = 0; i < max_vtsize; ++i) {
3286 if (vtable [i] && vtable [i]->wrapper_type == MONO_WRAPPER_NONE)
3287 vtable [i] = mono_marshal_get_static_rgctx_invoke (vtable [i]);
3291 /* Try to share the vtable with our parent. */
3292 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
3293 mono_memory_barrier ();
3294 class->vtable = class->parent->vtable;
3296 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * class->vtable_size);
3297 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
3298 mono_memory_barrier ();
3299 class->vtable = tmp;
3302 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
3303 if (mono_print_vtable) {
3306 print_implemented_interfaces (class);
3308 for (i = 0; i <= max_iid; i++)
3309 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
3312 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
3313 class->vtable_size, icount);
3315 for (i = 0; i < class->vtable_size; ++i) {
3320 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
3321 mono_method_full_name (cm, TRUE));
3327 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
3328 class->name, max_iid);
3330 for (i = 0; i < class->interface_count; i++) {
3331 ic = class->interfaces [i];
3332 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3333 mono_class_interface_offset (class, ic),
3334 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3337 for (k = class->parent; k ; k = k->parent) {
3338 for (i = 0; i < k->interface_count; i++) {
3339 ic = k->interfaces [i];
3340 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3341 mono_class_interface_offset (class, ic),
3342 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3348 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
3352 * mono_method_get_vtable_slot:
3354 * Returns method->slot, computing it if neccesary.
3355 * LOCKING: Acquires the loader lock.
3358 mono_method_get_vtable_slot (MonoMethod *method)
3360 if (method->slot == -1) {
3361 mono_class_setup_vtable (method->klass);
3362 g_assert (method->slot != -1);
3364 return method->slot;
3368 * mono_method_get_vtable_index:
3371 * Returns the index into the runtime vtable to access the method or,
3372 * in the case of a virtual generic method, the virtual generic method
3376 mono_method_get_vtable_index (MonoMethod *method)
3378 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3379 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3380 if (imethod->declaring->is_generic)
3381 return mono_method_get_vtable_slot (imethod->declaring);
3383 return mono_method_get_vtable_slot (method);
3386 static MonoMethod *default_ghc = NULL;
3387 static MonoMethod *default_finalize = NULL;
3388 static int finalize_slot = -1;
3389 static int ghc_slot = -1;
3392 initialize_object_slots (MonoClass *class)
3397 if (class == mono_defaults.object_class) {
3398 mono_class_setup_vtable (class);
3399 for (i = 0; i < class->vtable_size; ++i) {
3400 MonoMethod *cm = class->vtable [i];
3402 if (!strcmp (cm->name, "GetHashCode"))
3404 else if (!strcmp (cm->name, "Finalize"))
3408 g_assert (ghc_slot > 0);
3409 default_ghc = class->vtable [ghc_slot];
3411 g_assert (finalize_slot > 0);
3412 default_finalize = class->vtable [finalize_slot];
3417 g_list_prepend_mempool (GList* l, MonoMemPool* mp, gpointer datum)
3419 GList* n = mono_mempool_alloc (mp, sizeof (GList));
3427 MonoMethod *array_method;
3429 } GenericArrayMethodInfo;
3431 static int generic_array_method_num = 0;
3432 static GenericArrayMethodInfo *generic_array_method_info = NULL;
3435 generic_array_methods (MonoClass *class)
3437 int i, count_generic = 0;
3438 GList *list = NULL, *tmp;
3439 if (generic_array_method_num)
3440 return generic_array_method_num;
3441 mono_class_setup_methods (class->parent);
3442 for (i = 0; i < class->parent->method.count; i++) {
3443 MonoMethod *m = class->parent->methods [i];
3444 if (!strncmp (m->name, "InternalArray__", 15)) {
3446 list = g_list_prepend (list, m);
3449 list = g_list_reverse (list);
3450 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
3452 for (tmp = list; tmp; tmp = tmp->next) {
3453 const char *mname, *iname;
3455 MonoMethod *m = tmp->data;
3456 generic_array_method_info [i].array_method = m;
3457 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
3458 iname = "System.Collections.Generic.ICollection`1.";
3459 mname = m->name + 27;
3460 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
3461 iname = "System.Collections.Generic.IEnumerable`1.";
3462 mname = m->name + 27;
3463 } else if (!strncmp (m->name, "InternalArray__", 15)) {
3464 iname = "System.Collections.Generic.IList`1.";
3465 mname = m->name + 15;
3467 g_assert_not_reached ();
3470 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
3471 strcpy (name, iname);
3472 strcpy (name + strlen (iname), mname);
3473 generic_array_method_info [i].name = name;
3476 /*g_print ("array generic methods: %d\n", count_generic);*/
3478 generic_array_method_num = count_generic;
3480 return generic_array_method_num;
3484 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
3486 MonoGenericContext tmp_context;
3489 tmp_context.class_inst = NULL;
3490 tmp_context.method_inst = iface->generic_class->context.class_inst;
3491 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
3493 for (i = 0; i < generic_array_method_num; i++) {
3494 MonoMethod *m = generic_array_method_info [i].array_method;
3495 MonoMethod *inflated;
3497 inflated = mono_class_inflate_generic_method (m, &tmp_context);
3498 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
3503 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
3505 int len = strlen (s1) + strlen (s2) + 2;
3506 char *s = mono_image_alloc (image, len);
3509 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
3510 g_assert (result == len - 1);
3516 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
3518 gpointer exception_data = NULL;
3520 switch (error->exception_type) {
3521 case MONO_EXCEPTION_TYPE_LOAD:
3522 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
3525 case MONO_EXCEPTION_MISSING_METHOD:
3526 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
3529 case MONO_EXCEPTION_MISSING_FIELD: {
3530 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
3531 const char *class_name;
3534 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
3536 class_name = error->klass->name;
3538 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
3541 g_free ((void*)class_name);
3545 case MONO_EXCEPTION_FILE_NOT_FOUND: {
3548 if (error->ref_only)
3549 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.";
3551 msg = "Could not load file or assembly '%s' or one of its dependencies.";
3553 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
3557 case MONO_EXCEPTION_BAD_IMAGE:
3558 exception_data = error->msg;
3562 g_assert_not_reached ();
3565 mono_class_set_failure (class, error->exception_type, exception_data);
3569 check_core_clr_inheritance (MonoClass *class)
3571 MonoSecurityCoreCLRLevel class_level, parent_level;
3572 MonoClass *parent = class->parent;
3577 class_level = mono_security_core_clr_class_level (class);
3578 parent_level = mono_security_core_clr_class_level (parent);
3580 if (class_level < parent_level)
3581 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3586 * @class: the class to initialize
3588 * Compute the instance_size, class_size and other infos that cannot be
3589 * computed at mono_class_get() time. Also compute vtable_size if possible.
3590 * Returns TRUE on success or FALSE if there was a problem in loading
3591 * the type (incorrect assemblies, missing assemblies, methods, etc).
3593 * LOCKING: Acquires the loader lock.
3596 mono_class_init (MonoClass *class)
3599 MonoCachedClassInfo cached_info;
3600 gboolean has_cached_info;
3601 int class_init_ok = TRUE;
3605 /* Double-checking locking pattern */
3607 return class->exception_type == MONO_EXCEPTION_NONE;
3609 /*g_print ("Init class %s\n", class->name);*/
3611 /* We do everything inside the lock to prevent races */
3612 mono_loader_lock ();
3614 if (class->inited) {
3615 mono_loader_unlock ();
3616 /* Somebody might have gotten in before us */
3617 return class->exception_type == MONO_EXCEPTION_NONE;
3620 if (class->init_pending) {
3621 mono_loader_unlock ();
3622 /* this indicates a cyclic dependency */
3623 g_error ("pending init %s.%s\n", class->name_space, class->name);
3626 class->init_pending = 1;
3628 /* CAS - SecurityAction.InheritanceDemand */
3629 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
3630 mono_secman_inheritancedemand_class (class, class->parent);
3633 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3634 check_core_clr_inheritance (class);
3636 mono_stats.initialized_class_count++;
3638 if (class->generic_class && !class->generic_class->is_dynamic) {
3639 MonoClass *gklass = class->generic_class->container_class;
3641 mono_stats.generic_class_count++;
3643 class->method = gklass->method;
3644 class->field = gklass->field;
3646 mono_class_init (gklass);
3647 // FIXME: Why is this needed ?
3648 mono_class_setup_methods (gklass);
3650 if (MONO_CLASS_IS_INTERFACE (class))
3651 class->interface_id = mono_get_unique_iid (class);
3653 g_assert (class->interface_count == gklass->interface_count);
3656 if (class->parent && !class->parent->inited)
3657 mono_class_init (class->parent);
3659 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
3661 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
3662 class->nested_classes_inited = TRUE;
3665 * Computes the size used by the fields, and their locations
3667 if (has_cached_info) {
3668 class->instance_size = cached_info.instance_size;
3669 class->sizes.class_size = cached_info.class_size;
3670 class->packing_size = cached_info.packing_size;
3671 class->min_align = cached_info.min_align;
3672 class->blittable = cached_info.blittable;
3673 class->has_references = cached_info.has_references;
3674 class->has_static_refs = cached_info.has_static_refs;
3675 class->no_special_static_fields = cached_info.no_special_static_fields;
3678 if (!class->size_inited){
3679 mono_class_setup_fields (class);
3680 if (class->exception_type || mono_loader_get_last_error ()){
3681 class_init_ok = FALSE;
3686 /* Initialize arrays */
3688 class->method.count = 3 + (class->rank > 1? 2: 1);
3690 if (class->interface_count) {
3691 int count_generic = generic_array_methods (class);
3692 class->method.count += class->interface_count * count_generic;
3696 mono_class_setup_supertypes (class);
3699 initialize_object_slots (class);
3702 * Initialize the rest of the data without creating a generic vtable if possible.
3703 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
3704 * also avoid computing a generic vtable.
3706 if (has_cached_info) {
3708 class->vtable_size = cached_info.vtable_size;
3709 class->has_finalize = cached_info.has_finalize;
3710 class->ghcimpl = cached_info.ghcimpl;
3711 class->has_cctor = cached_info.has_cctor;
3712 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
3713 static int szarray_vtable_size = 0;
3716 if (!szarray_vtable_size) {
3717 mono_class_setup_vtable (class);
3718 szarray_vtable_size = class->vtable_size;
3720 class->vtable_size = szarray_vtable_size;
3722 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
3723 MonoClass *gklass = class->generic_class->container_class;
3725 /* Generic instance case */
3726 class->ghcimpl = gklass->ghcimpl;
3727 class->has_finalize = gklass->has_finalize;
3728 class->has_cctor = gklass->has_cctor;
3730 mono_class_setup_vtable (gklass);
3731 if (gklass->exception_type)
3734 class->vtable_size = gklass->vtable_size;
3738 /* ghcimpl is not currently used
3740 if (class->parent) {
3741 MonoMethod *cmethod = class->vtable [ghc_slot];
3742 if (cmethod->is_inflated)
3743 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3744 if (cmethod == default_ghc) {
3750 /* Interfaces and valuetypes are not supposed to have finalizers */
3751 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
3752 MonoMethod *cmethod = NULL;
3754 if (class->parent && class->parent->has_finalize) {
3755 class->has_finalize = 1;
3757 if (class->type_token) {
3758 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
3759 } else if (class->parent) {
3760 /* FIXME: Optimize this */
3761 mono_class_setup_vtable (class);
3762 if (class->exception_type || mono_loader_get_last_error ())
3764 cmethod = class->vtable [finalize_slot];
3768 /* Check that this is really the finalizer method */
3769 mono_class_setup_vtable (class);
3770 if (class->exception_type || mono_loader_get_last_error ())
3773 class->has_finalize = 0;
3774 if (class->parent) {
3775 cmethod = class->vtable [finalize_slot];
3776 if (cmethod->is_inflated)
3777 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3778 if (cmethod != default_finalize) {
3779 class->has_finalize = 1;
3786 /* C# doesn't allow interfaces to have cctors */
3787 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
3788 MonoMethod *cmethod = NULL;
3790 if (class->type_token) {
3791 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
3792 /* The find_method function ignores the 'flags' argument */
3793 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
3794 class->has_cctor = 1;
3796 mono_class_setup_methods (class);
3798 for (i = 0; i < class->method.count; ++i) {
3799 MonoMethod *method = class->methods [i];
3800 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3801 (strcmp (".cctor", method->name) == 0)) {
3802 class->has_cctor = 1;
3810 if (!mono_setup_vtable_in_class_init) {
3812 * This is an embedding API break, since the caller might assume that
3813 * mono_class_init () constructs a generic vtable, so vtable construction errors
3814 * are visible right after the mono_class_init (), and not after
3815 * mono_class_vtable ().
3817 if (class->parent) {
3818 /* This will compute class->parent->vtable_size for some classes */
3819 mono_class_init (class->parent);
3820 if (class->parent->exception_type || mono_loader_get_last_error ())
3822 if (!class->parent->vtable_size) {
3823 /* FIXME: Get rid of this somehow */
3824 mono_class_setup_vtable (class->parent);
3825 if (class->parent->exception_type || mono_loader_get_last_error ())
3828 setup_interface_offsets (class, class->parent->vtable_size);
3830 setup_interface_offsets (class, 0);
3833 mono_class_setup_vtable (class);
3835 if (MONO_CLASS_IS_INTERFACE (class))
3836 setup_interface_offsets (class, 0);
3839 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
3840 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
3841 class_init_ok = FALSE;
3847 class_init_ok = FALSE;
3850 /* Because of the double-checking locking pattern */
3851 mono_memory_barrier ();
3853 class->init_pending = 0;
3855 if (mono_loader_get_last_error ()) {
3856 if (class->exception_type == MONO_EXCEPTION_NONE)
3857 set_failure_from_loader_error (class, mono_loader_get_last_error ());
3859 mono_loader_clear_error ();
3862 mono_loader_unlock ();
3864 if (mono_debugger_class_init_func)
3865 mono_debugger_class_init_func (class);
3867 return class_init_ok;
3871 is_corlib_image (MonoImage *image)
3873 /* FIXME: allow the dynamic case for our compilers and with full trust */
3875 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
3877 return image == mono_defaults.corlib;
3881 * LOCKING: this assumes the loader lock is held
3884 mono_class_setup_mono_type (MonoClass *class)
3886 const char *name = class->name;
3887 const char *nspace = class->name_space;
3888 gboolean is_corlib = is_corlib_image (class->image);
3890 class->this_arg.byref = 1;
3891 class->this_arg.data.klass = class;
3892 class->this_arg.type = MONO_TYPE_CLASS;
3893 class->byval_arg.data.klass = class;
3894 class->byval_arg.type = MONO_TYPE_CLASS;
3896 if (is_corlib && !strcmp (nspace, "System")) {
3897 if (!strcmp (name, "ValueType")) {
3899 * do not set the valuetype bit for System.ValueType.
3900 * class->valuetype = 1;
3902 class->blittable = TRUE;
3903 } else if (!strcmp (name, "Enum")) {
3905 * do not set the valuetype bit for System.Enum.
3906 * class->valuetype = 1;
3908 class->valuetype = 0;
3909 class->enumtype = 0;
3910 } else if (!strcmp (name, "Object")) {
3911 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
3912 } else if (!strcmp (name, "String")) {
3913 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
3914 } else if (!strcmp (name, "TypedReference")) {
3915 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
3919 if (class->valuetype) {
3920 int t = MONO_TYPE_VALUETYPE;
3922 if (is_corlib && !strcmp (nspace, "System")) {
3925 if (!strcmp (name, "Boolean")) {
3926 t = MONO_TYPE_BOOLEAN;
3927 } else if (!strcmp(name, "Byte")) {
3929 class->blittable = TRUE;
3933 if (!strcmp (name, "Char")) {
3938 if (!strcmp (name, "Double")) {
3940 class->blittable = TRUE;
3944 if (!strcmp (name, "Int32")) {
3946 class->blittable = TRUE;
3947 } else if (!strcmp(name, "Int16")) {
3949 class->blittable = TRUE;
3950 } else if (!strcmp(name, "Int64")) {
3952 class->blittable = TRUE;
3953 } else if (!strcmp(name, "IntPtr")) {
3955 class->blittable = TRUE;
3959 if (!strcmp (name, "Single")) {
3961 class->blittable = TRUE;
3962 } else if (!strcmp(name, "SByte")) {
3964 class->blittable = TRUE;
3968 if (!strcmp (name, "UInt32")) {
3970 class->blittable = TRUE;
3971 } else if (!strcmp(name, "UInt16")) {
3973 class->blittable = TRUE;
3974 } else if (!strcmp(name, "UInt64")) {
3976 class->blittable = TRUE;
3977 } else if (!strcmp(name, "UIntPtr")) {
3979 class->blittable = TRUE;
3983 if (!strcmp (name, "TypedReference")) {
3984 t = MONO_TYPE_TYPEDBYREF;
3985 class->blittable = TRUE;
3989 if (!strcmp (name, "Void")) {
3997 class->this_arg.type = class->byval_arg.type = t;
4000 if (MONO_CLASS_IS_INTERFACE (class))
4001 class->interface_id = mono_get_unique_iid (class);
4006 * LOCKING: this assumes the loader lock is held
4009 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
4011 gboolean system_namespace;
4012 gboolean is_corlib = is_corlib_image (class->image);
4014 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
4016 /* if root of the hierarchy */
4017 if (system_namespace && !strcmp (class->name, "Object")) {
4018 class->parent = NULL;
4019 class->instance_size = sizeof (MonoObject);
4022 if (!strcmp (class->name, "<Module>")) {
4023 class->parent = NULL;
4024 class->instance_size = 0;
4028 if (!MONO_CLASS_IS_INTERFACE (class)) {
4029 /* Imported COM Objects always derive from __ComObject. */
4030 if (MONO_CLASS_IS_IMPORT (class)) {
4031 mono_init_com_types ();
4032 if (parent == mono_defaults.object_class)
4033 parent = mono_defaults.com_object_class;
4036 /* set the parent to something useful and safe, but mark the type as broken */
4037 parent = mono_defaults.object_class;
4038 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4041 class->parent = parent;
4043 if (parent->generic_class && !parent->name) {
4045 * If the parent is a generic instance, we may get
4046 * called before it is fully initialized, especially
4047 * before it has its name.
4052 class->marshalbyref = parent->marshalbyref;
4053 class->contextbound = parent->contextbound;
4054 class->delegate = parent->delegate;
4055 if (MONO_CLASS_IS_IMPORT (class))
4056 class->is_com_object = 1;
4058 class->is_com_object = parent->is_com_object;
4060 if (system_namespace) {
4061 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
4062 class->marshalbyref = 1;
4064 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
4065 class->contextbound = 1;
4067 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
4068 class->delegate = 1;
4071 if (class->parent->enumtype || (is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
4072 (strcmp (class->parent->name_space, "System") == 0)))
4073 class->valuetype = 1;
4074 if (is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
4075 class->valuetype = class->enumtype = 1;
4077 /*class->enumtype = class->parent->enumtype; */
4078 mono_class_setup_supertypes (class);
4080 /* initialize com types if COM interfaces are present */
4081 if (MONO_CLASS_IS_IMPORT (class))
4082 mono_init_com_types ();
4083 class->parent = NULL;
4089 * mono_class_setup_supertypes:
4092 * Build the data structure needed to make fast type checks work.
4093 * This currently sets two fields in @class:
4094 * - idepth: distance between @class and System.Object in the type
4096 * - supertypes: array of classes: each element has a class in the hierarchy
4097 * starting from @class up to System.Object
4099 * LOCKING: this assumes the loader lock is held
4102 mono_class_setup_supertypes (MonoClass *class)
4106 if (class->supertypes)
4109 if (class->parent && !class->parent->supertypes)
4110 mono_class_setup_supertypes (class->parent);
4112 class->idepth = class->parent->idepth + 1;
4116 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
4117 class->supertypes = mono_image_alloc0 (class->image, sizeof (MonoClass *) * ms);
4119 if (class->parent) {
4120 class->supertypes [class->idepth - 1] = class;
4121 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
4123 class->supertypes [0] = class;
4128 * mono_class_create_from_typedef:
4129 * @image: image where the token is valid
4130 * @type_token: typedef token
4132 * Create the MonoClass* representing the specified type token.
4133 * @type_token must be a TypeDef token.
4136 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
4138 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
4139 MonoClass *class, *parent = NULL;
4140 guint32 cols [MONO_TYPEDEF_SIZE];
4141 guint32 cols_next [MONO_TYPEDEF_SIZE];
4142 guint tidx = mono_metadata_token_index (type_token);
4143 MonoGenericContext *context = NULL;
4144 const char *name, *nspace;
4146 MonoClass **interfaces;
4147 guint32 field_last, method_last;
4148 guint32 nesting_tokeen;
4150 mono_loader_lock ();
4152 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
4153 mono_loader_unlock ();
4157 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
4159 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
4161 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4162 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4164 class = mono_image_alloc0 (image, sizeof (MonoClass));
4167 class->name_space = nspace;
4169 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4171 class->image = image;
4172 class->type_token = type_token;
4173 class->flags = cols [MONO_TYPEDEF_FLAGS];
4175 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
4178 * Check whether we're a generic type definition.
4180 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
4181 if (class->generic_container) {
4182 class->generic_container->owner.klass = class;
4183 context = &class->generic_container->context;
4186 if (cols [MONO_TYPEDEF_EXTENDS]) {
4187 parent = mono_class_get_full (
4188 image, mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]), context);
4189 if (parent == NULL){
4190 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
4191 mono_loader_unlock ();
4192 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4197 /* do this early so it's available for interfaces in setup_mono_type () */
4198 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
4199 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
4201 mono_class_setup_parent (class, parent);
4203 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
4204 mono_class_setup_mono_type (class);
4206 if (!class->enumtype) {
4207 if (!mono_metadata_interfaces_from_typedef_full (
4208 image, type_token, &interfaces, &icount, context)){
4209 mono_loader_unlock ();
4210 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4214 class->interfaces = interfaces;
4215 class->interface_count = icount;
4218 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
4222 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
4226 class->cast_class = class->element_class = class;
4228 /*g_print ("Load class %s\n", name);*/
4231 * Compute the field and method lists
4233 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
4234 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
4236 if (tt->rows > tidx){
4237 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
4238 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
4239 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
4241 field_last = image->tables [MONO_TABLE_FIELD].rows;
4242 method_last = image->tables [MONO_TABLE_METHOD].rows;
4245 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
4246 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
4247 class->field.count = field_last - class->field.first;
4249 class->field.count = 0;
4251 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
4252 class->method.count = method_last - class->method.first;
4254 class->method.count = 0;
4256 /* reserve space to store vector pointer in arrays */
4257 if (!strcmp (nspace, "System") && !strcmp (name, "Array")) {
4258 class->instance_size += 2 * sizeof (gpointer);
4259 g_assert (class->field.count == 0);
4262 if (class->enumtype) {
4263 class->enum_basetype = mono_class_find_enum_basetype (class);
4264 if (!class->enum_basetype) {
4265 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4266 mono_loader_unlock ();
4269 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
4273 * If we're a generic type definition, load the constraints.
4274 * We must do this after the class has been constructed to make certain recursive scenarios
4277 if (class->generic_container)
4278 mono_metadata_load_generic_param_constraints (
4279 image, type_token, class->generic_container);
4281 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
4282 if (!strncmp (name, "Vector", 6))
4283 class->simd_type = !strcmp (name + 6, "2d") || !strcmp (name + 6, "2ul") || !strcmp (name + 6, "2l") || !strcmp (name + 6, "4f") || !strcmp (name + 6, "4ui") || !strcmp (name + 6, "4i") || !strcmp (name + 6, "8s") || !strcmp (name + 6, "8us") || !strcmp (name + 6, "16b") || !strcmp (name + 6, "16sb");
4286 mono_loader_unlock ();
4288 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4293 /** is klass Nullable<T>? */
4295 mono_class_is_nullable (MonoClass *klass)
4297 return klass->generic_class != NULL &&
4298 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
4302 /** if klass is T? return T */
4304 mono_class_get_nullable_param (MonoClass *klass)
4306 g_assert (mono_class_is_nullable (klass));
4307 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4311 * Create the `MonoClass' for an instantiation of a generic type.
4312 * We only do this if we actually need it.
4315 mono_generic_class_get_class (MonoGenericClass *gclass)
4317 MonoClass *klass, *gklass;
4320 mono_loader_lock ();
4321 if (gclass->cached_class) {
4322 mono_loader_unlock ();
4323 return gclass->cached_class;
4326 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
4327 klass = gclass->cached_class;
4329 gklass = gclass->container_class;
4331 if (gklass->nested_in) {
4333 * FIXME: the nested type context should include everything the
4334 * nesting context should have, but it may also have additional
4335 * generic parameters...
4337 MonoType *inflated = mono_class_inflate_generic_type (
4338 &gklass->nested_in->byval_arg, mono_generic_class_get_context (gclass));
4339 klass->nested_in = mono_class_from_mono_type (inflated);
4340 mono_metadata_free_type (inflated);
4343 klass->name = gklass->name;
4344 klass->name_space = gklass->name_space;
4346 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4348 klass->image = gklass->image;
4349 klass->flags = gklass->flags;
4350 klass->type_token = gklass->type_token;
4351 klass->field.count = gklass->field.count;
4352 klass->property.count = gklass->property.count;
4354 klass->generic_class = gclass;
4356 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
4357 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
4358 klass->this_arg.byref = TRUE;
4359 klass->enumtype = gklass->enumtype;
4360 klass->valuetype = gklass->valuetype;
4362 klass->cast_class = klass->element_class = klass;
4364 if (mono_class_is_nullable (klass))
4365 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
4367 klass->interface_count = gklass->interface_count;
4368 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
4369 for (i = 0; i < klass->interface_count; i++) {
4370 MonoType *it = &gklass->interfaces [i]->byval_arg;
4371 MonoType *inflated = mono_class_inflate_generic_type (it, mono_generic_class_get_context (gclass));
4372 klass->interfaces [i] = mono_class_from_mono_type (inflated);
4373 mono_metadata_free_type (inflated);
4377 * We're not interested in the nested classes of a generic instance.
4378 * We use the generic type definition to look for nested classes.
4380 klass->nested_classes = NULL;
4382 if (gklass->parent) {
4383 MonoType *inflated = mono_class_inflate_generic_type (
4384 &gklass->parent->byval_arg, mono_generic_class_get_context (gclass));
4386 klass->parent = mono_class_from_mono_type (inflated);
4387 mono_metadata_free_type (inflated);
4391 mono_class_setup_parent (klass, klass->parent);
4393 if (klass->enumtype) {
4394 klass->enum_basetype = gklass->enum_basetype;
4395 klass->cast_class = gklass->cast_class;
4398 if (gclass->is_dynamic) {
4401 mono_class_setup_supertypes (klass);
4403 if (klass->enumtype) {
4405 * For enums, gklass->fields might not been set, but instance_size etc. is
4406 * already set in mono_reflection_create_internal_class (). For non-enums,
4407 * these will be computed normally in mono_class_layout_fields ().
4409 klass->instance_size = gklass->instance_size;
4410 klass->sizes.class_size = gklass->sizes.class_size;
4411 klass->size_inited = 1;
4415 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4417 mono_loader_unlock ();
4423 * LOCKING: Acquires the loader lock.
4426 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
4428 MonoClass *klass, **ptr;
4431 mono_loader_lock ();
4433 if (param->pklass) {
4434 mono_loader_unlock ();
4435 return param->pklass;
4438 if (!image && param->owner) {
4440 MonoMethod *method = param->owner->owner.method;
4441 image = (method && method->klass) ? method->klass->image : NULL;
4443 MonoClass *klass = param->owner->owner.klass;
4444 // FIXME: 'klass' should not be null
4445 // But, monodis creates GenericContainers without associating a owner to it
4446 image = klass ? klass->image : NULL;
4451 image = mono_defaults.corlib;
4453 klass = mono_image_alloc0 (image, sizeof (MonoClass));
4456 klass->name = param->name;
4458 klass->name = mono_image_alloc0 (image, 16);
4459 sprintf ((char*)klass->name, is_mvar ? "!!%d" : "!%d", param->num);
4461 klass->name_space = "";
4462 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4464 for (count = 0, ptr = param->constraints; ptr && *ptr; ptr++, count++)
4468 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (param->constraints [0])) {
4469 klass->parent = param->constraints [0];
4471 } else if (param->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
4472 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
4474 klass->parent = mono_defaults.object_class;
4476 if (count - pos > 0) {
4477 klass->interface_count = count - pos;
4478 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
4479 for (i = pos; i < count; i++)
4480 klass->interfaces [i - pos] = param->constraints [i];
4484 image = mono_defaults.corlib;
4486 klass->image = image;
4488 klass->inited = TRUE;
4489 klass->cast_class = klass->element_class = klass;
4490 klass->enum_basetype = &klass->element_class->byval_arg;
4491 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
4493 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4494 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
4495 klass->this_arg.byref = TRUE;
4499 guint32 cols [MONO_GENERICPARAM_SIZE];
4500 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4503 if (is_mvar && param->owner->owner.method)
4504 i = mono_metadata_get_generic_param_row (image, param->owner->owner.method->token, &owner);
4505 else if (!is_mvar && param->owner->owner.klass)
4506 i = mono_metadata_get_generic_param_row (image, param->owner->owner.klass->type_token, &owner);
4509 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4511 if (cols [MONO_GENERICPARAM_NUMBER] == param->num) {
4512 klass->sizes.generic_param_token = i | MONO_TOKEN_GENERIC_PARAM;
4515 if (++i > tdef->rows)
4517 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4518 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
4522 mono_class_setup_supertypes (klass);
4524 mono_memory_barrier ();
4526 param->pklass = klass;
4528 mono_loader_unlock ();
4530 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4536 mono_ptr_class_get (MonoType *type)
4539 MonoClass *el_class;
4543 el_class = mono_class_from_mono_type (type);
4544 image = el_class->image;
4546 mono_loader_lock ();
4548 if (!image->ptr_cache)
4549 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4551 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
4552 mono_loader_unlock ();
4555 result = mono_image_alloc0 (image, sizeof (MonoClass));
4557 result->parent = NULL; /* no parent for PTR types */
4558 result->name_space = el_class->name_space;
4559 name = g_strdup_printf ("%s*", el_class->name);
4560 result->name = mono_image_strdup (image, name);
4563 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4565 result->image = el_class->image;
4566 result->inited = TRUE;
4567 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4568 /* Can pointers get boxed? */
4569 result->instance_size = sizeof (gpointer);
4570 result->cast_class = result->element_class = el_class;
4571 result->enum_basetype = &result->element_class->byval_arg;
4572 result->blittable = TRUE;
4574 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
4575 result->this_arg.data.type = result->byval_arg.data.type = result->enum_basetype;
4576 result->this_arg.byref = TRUE;
4578 mono_class_setup_supertypes (result);
4580 g_hash_table_insert (image->ptr_cache, el_class, result);
4582 mono_loader_unlock ();
4584 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4590 mono_fnptr_class_get (MonoMethodSignature *sig)
4593 static GHashTable *ptr_hash = NULL;
4595 /* FIXME: These should be allocate from a mempool as well, but which one ? */
4597 mono_loader_lock ();
4600 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4602 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
4603 mono_loader_unlock ();
4606 result = g_new0 (MonoClass, 1);
4608 result->parent = NULL; /* no parent for PTR types */
4609 result->name_space = "System";
4610 result->name = "MonoFNPtrFakeClass";
4612 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4614 result->image = mono_defaults.corlib; /* need to fix... */
4615 result->inited = TRUE;
4616 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
4617 /* Can pointers get boxed? */
4618 result->instance_size = sizeof (gpointer);
4619 result->cast_class = result->element_class = result;
4620 result->blittable = TRUE;
4622 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
4623 result->this_arg.data.method = result->byval_arg.data.method = sig;
4624 result->this_arg.byref = TRUE;
4625 result->enum_basetype = &result->element_class->byval_arg;
4626 result->blittable = TRUE;
4628 mono_class_setup_supertypes (result);
4630 g_hash_table_insert (ptr_hash, sig, result);
4632 mono_loader_unlock ();
4634 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4640 mono_class_from_mono_type (MonoType *type)
4642 switch (type->type) {
4643 case MONO_TYPE_OBJECT:
4644 return type->data.klass? type->data.klass: mono_defaults.object_class;
4645 case MONO_TYPE_VOID:
4646 return type->data.klass? type->data.klass: mono_defaults.void_class;
4647 case MONO_TYPE_BOOLEAN:
4648 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
4649 case MONO_TYPE_CHAR:
4650 return type->data.klass? type->data.klass: mono_defaults.char_class;
4652 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
4654 return type->data.klass? type->data.klass: mono_defaults.byte_class;
4656 return type->data.klass? type->data.klass: mono_defaults.int16_class;
4658 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
4660 return type->data.klass? type->data.klass: mono_defaults.int32_class;
4662 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
4664 return type->data.klass? type->data.klass: mono_defaults.int_class;
4666 return type->data.klass? type->data.klass: mono_defaults.uint_class;
4668 return type->data.klass? type->data.klass: mono_defaults.int64_class;
4670 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
4672 return type->data.klass? type->data.klass: mono_defaults.single_class;
4674 return type->data.klass? type->data.klass: mono_defaults.double_class;
4675 case MONO_TYPE_STRING:
4676 return type->data.klass? type->data.klass: mono_defaults.string_class;
4677 case MONO_TYPE_TYPEDBYREF:
4678 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
4679 case MONO_TYPE_ARRAY:
4680 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
4682 return mono_ptr_class_get (type->data.type);
4683 case MONO_TYPE_FNPTR:
4684 return mono_fnptr_class_get (type->data.method);
4685 case MONO_TYPE_SZARRAY:
4686 return mono_array_class_get (type->data.klass, 1);
4687 case MONO_TYPE_CLASS:
4688 case MONO_TYPE_VALUETYPE:
4689 return type->data.klass;
4690 case MONO_TYPE_GENERICINST:
4691 return mono_generic_class_get_class (type->data.generic_class);
4693 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
4694 case MONO_TYPE_MVAR:
4695 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
4697 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
4698 g_assert_not_reached ();
4705 * mono_type_retrieve_from_typespec
4706 * @image: context where the image is created
4707 * @type_spec: typespec token
4708 * @context: the generic context used to evaluate generic instantiations in
4711 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate)
4713 MonoType *t = mono_type_create_from_typespec (image, type_spec);
4716 if (context && (context->class_inst || context->method_inst)) {
4717 MonoType *inflated = inflate_generic_type (NULL, t, context);
4720 *did_inflate = TRUE;
4727 * mono_class_create_from_typespec
4728 * @image: context where the image is created
4729 * @type_spec: typespec token
4730 * @context: the generic context used to evaluate generic instantiations in
4733 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
4736 gboolean inflated = FALSE;
4737 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated);
4740 ret = mono_class_from_mono_type (t);
4742 mono_metadata_free_type (t);
4747 * mono_bounded_array_class_get:
4748 * @element_class: element class
4749 * @rank: the dimension of the array class
4750 * @bounded: whenever the array has non-zero bounds
4752 * Returns: a class object describing the array with element type @element_type and
4756 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
4760 MonoClass *parent = NULL;
4761 GSList *list, *rootlist;
4764 gboolean corlib_type = FALSE;
4766 g_assert (rank <= 255);
4769 /* bounded only matters for one-dimensional arrays */
4772 image = eclass->image;
4774 mono_loader_lock ();
4776 if (!image->array_cache)
4777 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4779 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
4780 for (; list; list = list->next) {
4782 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
4783 mono_loader_unlock ();
4789 /* for the building corlib use System.Array from it */
4790 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
4791 parent = mono_class_from_name (image, "System", "Array");
4794 parent = mono_defaults.array_class;
4795 if (!parent->inited)
4796 mono_class_init (parent);
4799 class = mono_image_alloc0 (image, sizeof (MonoClass));
4801 class->image = image;
4802 class->name_space = eclass->name_space;
4803 nsize = strlen (eclass->name);
4804 name = g_malloc (nsize + 2 + rank + 1);
4805 memcpy (name, eclass->name, nsize);
4808 memset (name + nsize + 1, ',', rank - 1);
4810 name [nsize + rank] = '*';
4811 name [nsize + rank + bounded] = ']';
4812 name [nsize + rank + bounded + 1] = 0;
4813 class->name = mono_image_strdup (image, name);
4816 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4818 class->type_token = 0;
4819 /* all arrays are marked serializable and sealed, bug #42779 */
4820 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
4821 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4822 class->parent = parent;
4823 class->instance_size = mono_class_instance_size (class->parent);
4825 if (eclass->enumtype && !eclass->enum_basetype) {
4826 if (!eclass->reflection_info || eclass->wastypebuilder) {
4827 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
4828 g_assert (eclass->reflection_info && !eclass->wastypebuilder);
4830 /* element_size -1 is ok as this is not an instantitable type*/
4831 class->sizes.element_size = -1;
4833 class->sizes.element_size = mono_class_array_element_size (eclass);
4835 mono_class_setup_supertypes (class);
4837 if (mono_defaults.generic_ilist_class && !bounded && rank == 1) {
4840 /* generic IList, ICollection, IEnumerable */
4841 class->interface_count = 1;
4842 class->interfaces = mono_image_alloc0 (image, sizeof (MonoClass*) * class->interface_count);
4844 args [0] = &eclass->byval_arg;
4845 class->interfaces [0] = mono_class_bind_generic_parameters (
4846 mono_defaults.generic_ilist_class, 1, args, FALSE);
4849 if (eclass->generic_class)
4850 mono_class_init (eclass);
4851 if (!eclass->size_inited)
4852 mono_class_setup_fields (eclass);
4853 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
4857 if (eclass->enumtype)
4858 class->cast_class = eclass->element_class;
4860 class->cast_class = eclass;
4862 class->element_class = eclass;
4864 if ((rank > 1) || bounded) {
4865 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
4866 class->byval_arg.type = MONO_TYPE_ARRAY;
4867 class->byval_arg.data.array = at;
4868 at->eklass = eclass;
4870 /* FIXME: complete.... */
4872 class->byval_arg.type = MONO_TYPE_SZARRAY;
4873 class->byval_arg.data.klass = eclass;
4875 class->this_arg = class->byval_arg;
4876 class->this_arg.byref = 1;
4881 class->generic_container = eclass->generic_container;
4883 list = g_slist_append (rootlist, class);
4884 g_hash_table_insert (image->array_cache, eclass, list);
4886 mono_loader_unlock ();
4888 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4894 * mono_array_class_get:
4895 * @element_class: element class
4896 * @rank: the dimension of the array class
4898 * Returns: a class object describing the array with element type @element_type and
4902 mono_array_class_get (MonoClass *eclass, guint32 rank)
4904 return mono_bounded_array_class_get (eclass, rank, FALSE);
4908 * mono_class_instance_size:
4911 * Returns: the size of an object instance
4914 mono_class_instance_size (MonoClass *klass)
4916 if (!klass->size_inited)
4917 mono_class_init (klass);
4919 return klass->instance_size;
4923 * mono_class_min_align:
4926 * Returns: minimm alignment requirements
4929 mono_class_min_align (MonoClass *klass)
4931 if (!klass->size_inited)
4932 mono_class_init (klass);
4934 return klass->min_align;
4938 * mono_class_value_size:
4941 * This function is used for value types, and return the
4942 * space and the alignment to store that kind of value object.
4944 * Returns: the size of a value of kind @klass
4947 mono_class_value_size (MonoClass *klass, guint32 *align)
4951 /* fixme: check disable, because we still have external revereces to
4952 * mscorlib and Dummy Objects
4954 /*g_assert (klass->valuetype);*/
4956 size = mono_class_instance_size (klass) - sizeof (MonoObject);
4959 *align = klass->min_align;
4965 * mono_class_data_size:
4968 * Returns: the size of the static class data
4971 mono_class_data_size (MonoClass *klass)
4974 mono_class_init (klass);
4976 /* in arrays, sizes.class_size is unioned with element_size
4977 * and arrays have no static fields
4981 return klass->sizes.class_size;
4985 * Auxiliary routine to mono_class_get_field
4987 * Takes a field index instead of a field token.
4989 static MonoClassField *
4990 mono_class_get_field_idx (MonoClass *class, int idx)
4992 mono_class_setup_fields_locking (class);
4995 if (class->image->uncompressed_metadata) {
4997 * class->field.first points to the FieldPtr table, while idx points into the
4998 * Field table, so we have to do a search.
5000 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
5003 for (i = 0; i < class->field.count; ++i)
5004 if (mono_field_get_name (&class->fields [i]) == name)
5005 return &class->fields [i];
5006 g_assert_not_reached ();
5008 if (class->field.count) {
5009 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
5010 return &class->fields [idx - class->field.first];
5014 class = class->parent;
5020 * mono_class_get_field:
5021 * @class: the class to lookup the field.
5022 * @field_token: the field token
5024 * Returns: A MonoClassField representing the type and offset of
5025 * the field, or a NULL value if the field does not belong to this
5029 mono_class_get_field (MonoClass *class, guint32 field_token)
5031 int idx = mono_metadata_token_index (field_token);
5033 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
5035 return mono_class_get_field_idx (class, idx - 1);
5039 * mono_class_get_field_from_name:
5040 * @klass: the class to lookup the field.
5041 * @name: the field name
5043 * Search the class @klass and it's parents for a field with the name @name.
5045 * Returns: the MonoClassField pointer of the named field or NULL
5048 mono_class_get_field_from_name (MonoClass *klass, const char *name)
5052 mono_class_setup_fields_locking (klass);
5054 for (i = 0; i < klass->field.count; ++i) {
5055 if (strcmp (name, mono_field_get_name (&klass->fields [i])) == 0)
5056 return &klass->fields [i];
5058 klass = klass->parent;
5064 * mono_class_get_field_token:
5065 * @field: the field we need the token of
5067 * Get the token of a field. Note that the tokesn is only valid for the image
5068 * the field was loaded from. Don't use this function for fields in dynamic types.
5070 * Returns: the token representing the field in the image it was loaded from.
5073 mono_class_get_field_token (MonoClassField *field)
5075 MonoClass *klass = field->parent;
5078 mono_class_setup_fields_locking (klass);
5080 for (i = 0; i < klass->field.count; ++i) {
5081 if (&klass->fields [i] == field) {
5082 int idx = klass->field.first + i + 1;
5084 if (klass->image->uncompressed_metadata)
5085 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
5086 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
5089 klass = klass->parent;
5092 g_assert_not_reached ();
5097 mono_field_get_index (MonoClassField *field)
5099 int index = field - field->parent->fields;
5101 g_assert (index >= 0 && index < field->parent->field.count);
5107 * mono_class_get_field_default_value:
5109 * Return the default value of the field as a pointer into the metadata blob.
5112 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
5115 guint32 constant_cols [MONO_CONSTANT_SIZE];
5117 MonoClass *klass = field->parent;
5119 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
5121 if (!klass->field_def_values) {
5122 mono_loader_lock ();
5123 if (!klass->field_def_values)
5124 klass->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
5125 mono_loader_unlock ();
5128 field_index = mono_field_get_index (field);
5130 if (!klass->field_def_values [field_index].data) {
5131 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
5133 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
5135 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
5136 klass->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
5137 klass->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
5140 *def_type = klass->field_def_values [field_index].def_type;
5141 return klass->field_def_values [field_index].data;
5145 mono_class_get_event_token (MonoEvent *event)
5147 MonoClass *klass = event->parent;
5151 for (i = 0; i < klass->event.count; ++i) {
5152 if (&klass->events [i] == event)
5153 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->event.first + i + 1);
5155 klass = klass->parent;
5158 g_assert_not_reached ();
5163 mono_class_get_property_from_name (MonoClass *klass, const char *name)
5167 gpointer iter = NULL;
5168 while ((p = mono_class_get_properties (klass, &iter))) {
5169 if (! strcmp (name, p->name))
5172 klass = klass->parent;
5178 mono_class_get_property_token (MonoProperty *prop)
5180 MonoClass *klass = prop->parent;
5184 gpointer iter = NULL;
5185 while ((p = mono_class_get_properties (klass, &iter))) {
5186 if (&klass->properties [i] == prop)
5187 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->property.first + i + 1);
5191 klass = klass->parent;
5194 g_assert_not_reached ();
5199 mono_class_name_from_token (MonoImage *image, guint32 type_token)
5201 const char *name, *nspace;
5203 return g_strdup_printf ("DynamicType 0x%08x", type_token);
5205 switch (type_token & 0xff000000){
5206 case MONO_TOKEN_TYPE_DEF: {
5207 guint32 cols [MONO_TYPEDEF_SIZE];
5208 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5209 guint tidx = mono_metadata_token_index (type_token);
5211 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5212 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5213 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5214 if (strlen (nspace) == 0)
5215 return g_strdup_printf ("%s", name);
5217 return g_strdup_printf ("%s.%s", nspace, name);
5220 case MONO_TOKEN_TYPE_REF: {
5221 guint32 cols [MONO_TYPEREF_SIZE];
5222 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5224 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5225 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
5226 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
5227 if (strlen (nspace) == 0)
5228 return g_strdup_printf ("%s", name);
5230 return g_strdup_printf ("%s.%s", nspace, name);
5233 case MONO_TOKEN_TYPE_SPEC:
5234 return g_strdup_printf ("Typespec 0x%08x", type_token);
5236 g_assert_not_reached ();
5243 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
5246 return g_strdup_printf ("DynamicAssembly %s", image->name);
5248 switch (type_token & 0xff000000){
5249 case MONO_TOKEN_TYPE_DEF:
5250 return mono_stringify_assembly_name (&image->assembly->aname);
5252 case MONO_TOKEN_TYPE_REF: {
5253 MonoAssemblyName aname;
5254 guint32 cols [MONO_TYPEREF_SIZE];
5255 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5258 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5260 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
5261 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
5262 case MONO_RESOLTION_SCOPE_MODULE:
5264 return g_strdup ("");
5265 case MONO_RESOLTION_SCOPE_MODULEREF:
5267 return g_strdup ("");
5268 case MONO_RESOLTION_SCOPE_TYPEREF:
5270 return g_strdup ("");
5271 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
5272 mono_assembly_get_assemblyref (image, idx - 1, &aname);
5273 return mono_stringify_assembly_name (&aname);
5275 g_assert_not_reached ();
5279 case MONO_TOKEN_TYPE_SPEC:
5281 return g_strdup ("");
5283 g_assert_not_reached ();
5290 * mono_class_get_full:
5291 * @image: the image where the class resides
5292 * @type_token: the token for the class
5293 * @context: the generic context used to evaluate generic instantiations in
5295 * Returns: the MonoClass that represents @type_token in @image
5298 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5300 MonoClass *class = NULL;
5302 if (image->dynamic) {
5303 int table = mono_metadata_token_table (type_token);
5305 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
5306 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
5309 return mono_lookup_dynamic_token (image, type_token, context);
5312 switch (type_token & 0xff000000){
5313 case MONO_TOKEN_TYPE_DEF:
5314 class = mono_class_create_from_typedef (image, type_token);
5316 case MONO_TOKEN_TYPE_REF:
5317 class = mono_class_from_typeref (image, type_token);
5319 case MONO_TOKEN_TYPE_SPEC:
5320 class = mono_class_create_from_typespec (image, type_token, context);
5323 g_warning ("unknown token type %x", type_token & 0xff000000);
5324 g_assert_not_reached ();
5328 char *name = mono_class_name_from_token (image, type_token);
5329 char *assembly = mono_assembly_name_from_token (image, type_token);
5330 mono_loader_set_error_type_load (name, assembly);
5338 * mono_type_get_full:
5339 * @image: the image where the type resides
5340 * @type_token: the token for the type
5341 * @context: the generic context used to evaluate generic instantiations in
5343 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
5345 * Returns: the MonoType that represents @type_token in @image
5348 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5350 MonoType *type = NULL;
5351 gboolean inflated = FALSE;
5353 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
5355 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
5357 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
5358 MonoClass *class = mono_class_get_full (image, type_token, context);
5359 return class ? mono_class_get_type (class) : NULL;
5362 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated);
5365 char *name = mono_class_name_from_token (image, type_token);
5366 char *assembly = mono_assembly_name_from_token (image, type_token);
5368 mono_metadata_free_type (type);
5369 mono_loader_set_error_type_load (name, assembly);
5373 MonoType *tmp = type;
5374 type = mono_class_get_type (mono_class_from_mono_type (type));
5375 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
5376 * A MonoClass::byval_arg of a generic type definion has type CLASS.
5377 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
5379 * The long term solution is to chaise this places and make then set MonoType::type correctly.
5381 if (type->type != tmp->type)
5384 mono_metadata_free_type (tmp);
5391 mono_class_get (MonoImage *image, guint32 type_token)
5393 return mono_class_get_full (image, type_token, NULL);
5397 * mono_image_init_name_cache:
5399 * Initializes the class name cache stored in image->name_cache.
5401 * LOCKING: Acquires the loader lock.
5404 mono_image_init_name_cache (MonoImage *image)
5406 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5407 guint32 cols [MONO_TYPEDEF_SIZE];
5410 guint32 i, visib, nspace_index;
5411 GHashTable *name_cache2, *nspace_table;
5413 mono_loader_lock ();
5415 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
5417 if (image->dynamic) {
5418 mono_loader_unlock ();
5422 /* Temporary hash table to avoid lookups in the nspace_table */
5423 name_cache2 = g_hash_table_new (NULL, NULL);
5425 for (i = 1; i <= t->rows; ++i) {
5426 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5427 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5429 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5430 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5432 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5434 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5435 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5437 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
5438 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5439 if (!nspace_table) {
5440 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5441 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5442 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5445 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
5448 /* Load type names from EXPORTEDTYPES table */
5450 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5451 guint32 cols [MONO_EXP_TYPE_SIZE];
5454 for (i = 0; i < t->rows; ++i) {
5455 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
5456 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
5457 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
5459 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
5460 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5461 if (!nspace_table) {
5462 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5463 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5464 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5467 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
5471 g_hash_table_destroy (name_cache2);
5473 mono_loader_unlock ();
5477 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
5478 const char *name, guint32 index)
5480 GHashTable *nspace_table;
5481 GHashTable *name_cache;
5483 mono_loader_lock ();
5485 if (!image->name_cache)
5486 mono_image_init_name_cache (image);
5488 name_cache = image->name_cache;
5489 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
5490 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5491 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
5493 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
5495 mono_loader_unlock ();
5504 find_nocase (gpointer key, gpointer value, gpointer user_data)
5506 char *name = (char*)key;
5507 FindUserData *data = (FindUserData*)user_data;
5509 if (!data->value && (g_strcasecmp (name, (char*)data->key) == 0))
5510 data->value = value;
5514 * mono_class_from_name_case:
5515 * @image: The MonoImage where the type is looked up in
5516 * @name_space: the type namespace
5517 * @name: the type short name.
5519 * Obtains a MonoClass with a given namespace and a given name which
5520 * is located in the given MonoImage. The namespace and name
5521 * lookups are case insensitive.
5524 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
5526 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5527 guint32 cols [MONO_TYPEDEF_SIZE];
5532 if (image->dynamic) {
5534 FindUserData user_data;
5536 mono_loader_lock ();
5538 if (!image->name_cache)
5539 mono_image_init_name_cache (image);
5541 user_data.key = name_space;
5542 user_data.value = NULL;
5543 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
5545 if (user_data.value) {
5546 GHashTable *nspace_table = (GHashTable*)user_data.value;
5548 user_data.key = name;
5549 user_data.value = NULL;
5551 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
5553 if (user_data.value)
5554 token = GPOINTER_TO_UINT (user_data.value);
5557 mono_loader_unlock ();
5560 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
5566 /* add a cache if needed */
5567 for (i = 1; i <= t->rows; ++i) {
5568 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5569 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5571 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5572 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5574 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5576 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5577 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5578 if (g_strcasecmp (n, name) == 0 && g_strcasecmp (nspace, name_space) == 0)
5579 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
5585 return_nested_in (MonoClass *class, char *nested)
5588 char *s = strchr (nested, '/');
5589 gpointer iter = NULL;
5596 while ((found = mono_class_get_nested_types (class, &iter))) {
5597 if (strcmp (found->name, nested) == 0) {
5599 return return_nested_in (found, s);
5607 search_modules (MonoImage *image, const char *name_space, const char *name)
5609 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
5610 MonoImage *file_image;
5615 * The EXPORTEDTYPES table only contains public types, so have to search the
5617 * Note: image->modules contains the contents of the MODULEREF table, while
5618 * the real module list is in the FILE table.
5620 for (i = 0; i < file_table->rows; i++) {
5621 guint32 cols [MONO_FILE_SIZE];
5622 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
5623 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
5626 file_image = mono_image_load_file_for_image (image, i + 1);
5628 class = mono_class_from_name (file_image, name_space, name);
5638 * mono_class_from_name:
5639 * @image: The MonoImage where the type is looked up in
5640 * @name_space: the type namespace
5641 * @name: the type short name.
5643 * Obtains a MonoClass with a given namespace and a given name which
5644 * is located in the given MonoImage.
5647 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
5649 GHashTable *nspace_table;
5650 MonoImage *loaded_image;
5657 if ((nested = strchr (name, '/'))) {
5658 int pos = nested - name;
5659 int len = strlen (name);
5662 memcpy (buf, name, len + 1);
5664 nested = buf + pos + 1;
5668 if (get_class_from_name) {
5669 gboolean res = get_class_from_name (image, name_space, name, &class);
5672 class = search_modules (image, name_space, name);
5674 return class ? return_nested_in (class, nested) : NULL;
5680 mono_loader_lock ();
5682 if (!image->name_cache)
5683 mono_image_init_name_cache (image);
5685 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
5688 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
5690 mono_loader_unlock ();
5692 if (!token && image->dynamic && image->modules) {
5693 /* Search modules as well */
5694 for (i = 0; i < image->module_count; ++i) {
5695 MonoImage *module = image->modules [i];
5697 class = mono_class_from_name (module, name_space, name);
5704 class = search_modules (image, name_space, name);
5712 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
5713 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5714 guint32 cols [MONO_EXP_TYPE_SIZE];
5717 idx = mono_metadata_token_index (token);
5719 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
5721 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
5722 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
5723 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
5726 class = mono_class_from_name (loaded_image, name_space, name);
5728 return return_nested_in (class, nested);
5730 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
5731 MonoAssembly **references = image->references;
5732 guint32 assembly_idx;
5734 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
5736 if (!references [assembly_idx - 1])
5737 mono_assembly_load_reference (image, assembly_idx - 1);
5738 g_assert (references == image->references);
5739 g_assert (references [assembly_idx - 1]);
5740 if (references [assembly_idx - 1] == (gpointer)-1)
5743 /* FIXME: Cycle detection */
5744 return mono_class_from_name (references [assembly_idx - 1]->image, name_space, name);
5746 g_error ("not yet implemented");
5750 token = MONO_TOKEN_TYPE_DEF | token;
5752 class = mono_class_get (image, token);
5754 return return_nested_in (class, nested);
5759 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
5760 gboolean check_interfaces)
5762 g_assert (klassc->idepth > 0);
5763 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
5764 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
5766 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
5769 for (i = 0; i < klass->interface_count; i ++) {
5770 MonoClass *ic = klass->interfaces [i];
5775 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
5780 * MS.NET thinks interfaces are a subclass of Object, so we think it as
5783 if (klassc == mono_defaults.object_class)
5790 mono_class_has_variant_generic_params (MonoClass *klass)
5793 MonoGenericContainer *container;
5795 if (!klass->generic_class)
5798 container = klass->generic_class->container_class->generic_container;
5800 for (i = 0; i < container->type_argc; ++i)
5801 if (container->type_params [i].flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
5808 * mono_class_is_assignable_from:
5809 * @klass: the class to be assigned to
5810 * @oklass: the source class
5812 * Return: true if an instance of object oklass can be assigned to an
5813 * instance of object @klass
5816 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
5819 mono_class_init (klass);
5821 if (!oklass->inited)
5822 mono_class_init (oklass);
5824 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
5825 return klass == oklass;
5827 if (MONO_CLASS_IS_INTERFACE (klass)) {
5828 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
5831 /* interface_offsets might not be set for dynamic classes */
5832 if (oklass->reflection_info && !oklass->interface_bitmap)
5834 * oklass might be a generic type parameter but they have
5835 * interface_offsets set.
5837 return mono_reflection_call_is_assignable_to (oklass, klass);
5838 if (!oklass->interface_bitmap)
5839 /* Happens with generic instances of not-yet created dynamic types */
5841 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
5844 if (mono_class_has_variant_generic_params (klass)) {
5845 if (oklass->generic_class) {
5847 gboolean match = FALSE;
5848 MonoClass *container_class1 = klass->generic_class->container_class;
5849 MonoClass *container_class2 = oklass->generic_class->container_class;
5852 * Check whenever the generic definition of oklass implements the
5853 * generic definition of klass. The IMPLEMENTS_INTERFACE stuff is not usable
5854 * here since the relevant tables are not set up.
5856 for (i = 0; i < container_class2->interface_offsets_count; ++i)
5857 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)))
5861 MonoGenericContainer *container;
5863 container = klass->generic_class->container_class->generic_container;
5866 for (i = 0; i < container->type_argc; ++i) {
5867 MonoClass *param1_class = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [i]);
5868 MonoClass *param2_class = mono_class_from_mono_type (oklass->generic_class->context.class_inst->type_argv [i]);
5870 if (param1_class->valuetype != param2_class->valuetype) {
5875 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
5876 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
5878 if (param1_class != param2_class) {
5879 if ((container->type_params [i].flags & MONO_GEN_PARAM_VARIANT) && mono_class_is_assignable_from (param1_class, param2_class))
5881 else if (((container->type_params [i].flags & MONO_GEN_PARAM_COVARIANT) && mono_class_is_assignable_from (param2_class, param1_class)))
5895 } else if (klass->rank) {
5896 MonoClass *eclass, *eoclass;
5898 if (oklass->rank != klass->rank)
5901 /* vectors vs. one dimensional arrays */
5902 if (oklass->byval_arg.type != klass->byval_arg.type)
5905 eclass = klass->cast_class;
5906 eoclass = oklass->cast_class;
5909 * a is b does not imply a[] is b[] when a is a valuetype, and
5910 * b is a reference type.
5913 if (eoclass->valuetype) {
5914 if ((eclass == mono_defaults.enum_class) ||
5915 (eclass == mono_defaults.enum_class->parent) ||
5916 (eclass == mono_defaults.object_class))
5920 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
5921 } else if (mono_class_is_nullable (klass)) {
5922 if (mono_class_is_nullable (oklass))
5923 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
5925 return mono_class_is_assignable_from (klass->cast_class, oklass);
5926 } else if (klass == mono_defaults.object_class)
5929 return mono_class_has_parent (oklass, klass);
5933 * mono_class_get_cctor:
5934 * @klass: A MonoClass pointer
5936 * Returns: the static constructor of @klass if it exists, NULL otherwise.
5939 mono_class_get_cctor (MonoClass *klass)
5941 MonoCachedClassInfo cached_info;
5943 if (!klass->has_cctor)
5946 if (mono_class_get_cached_class_info (klass, &cached_info))
5947 return mono_get_method (klass->image, cached_info.cctor_token, klass);
5949 if (klass->generic_class && !klass->methods)
5950 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
5952 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
5956 * mono_class_get_finalizer:
5957 * @klass: The MonoClass pointer
5959 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
5962 mono_class_get_finalizer (MonoClass *klass)
5964 MonoCachedClassInfo cached_info;
5967 mono_class_init (klass);
5968 if (!klass->has_finalize)
5971 if (mono_class_get_cached_class_info (klass, &cached_info))
5972 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
5974 mono_class_setup_vtable (klass);
5975 return klass->vtable [finalize_slot];
5980 * mono_class_needs_cctor_run:
5981 * @klass: the MonoClass pointer
5982 * @caller: a MonoMethod describing the caller
5984 * Determines whenever the class has a static constructor and whenever it
5985 * needs to be called when executing CALLER.
5988 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
5992 method = mono_class_get_cctor (klass);
5994 return (method == caller) ? FALSE : TRUE;
6000 * mono_class_array_element_size:
6003 * Returns: the number of bytes an element of type @klass
6004 * uses when stored into an array.
6007 mono_class_array_element_size (MonoClass *klass)
6009 MonoType *type = &klass->byval_arg;
6012 switch (type->type) {
6015 case MONO_TYPE_BOOLEAN:
6019 case MONO_TYPE_CHAR:
6028 case MONO_TYPE_CLASS:
6029 case MONO_TYPE_STRING:
6030 case MONO_TYPE_OBJECT:
6031 case MONO_TYPE_SZARRAY:
6032 case MONO_TYPE_ARRAY:
6034 case MONO_TYPE_MVAR:
6035 return sizeof (gpointer);
6040 case MONO_TYPE_VALUETYPE:
6041 if (type->data.klass->enumtype) {
6042 type = type->data.klass->enum_basetype;
6043 klass = klass->element_class;
6046 return mono_class_instance_size (klass) - sizeof (MonoObject);
6047 case MONO_TYPE_GENERICINST:
6048 type = &type->data.generic_class->container_class->byval_arg;
6051 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
6057 * mono_array_element_size:
6058 * @ac: pointer to a #MonoArrayClass
6060 * Returns: the size of single array element.
6063 mono_array_element_size (MonoClass *ac)
6065 g_assert (ac->rank);
6066 return ac->sizes.element_size;
6070 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
6071 MonoGenericContext *context)
6073 if (image->dynamic) {
6074 MonoClass *tmp_handle_class;
6075 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
6077 g_assert (tmp_handle_class);
6079 *handle_class = tmp_handle_class;
6081 if (tmp_handle_class == mono_defaults.typehandle_class)
6082 return &((MonoClass*)obj)->byval_arg;
6087 switch (token & 0xff000000) {
6088 case MONO_TOKEN_TYPE_DEF:
6089 case MONO_TOKEN_TYPE_REF:
6090 case MONO_TOKEN_TYPE_SPEC: {
6093 *handle_class = mono_defaults.typehandle_class;
6094 type = mono_type_get_full (image, token, context);
6097 mono_class_init (mono_class_from_mono_type (type));
6098 /* We return a MonoType* as handle */
6101 case MONO_TOKEN_FIELD_DEF: {
6103 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
6105 *handle_class = mono_defaults.fieldhandle_class;
6106 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
6109 mono_class_init (class);
6110 return mono_class_get_field (class, token);
6112 case MONO_TOKEN_METHOD_DEF:
6113 case MONO_TOKEN_METHOD_SPEC: {
6115 meth = mono_get_method_full (image, token, NULL, context);
6117 *handle_class = mono_defaults.methodhandle_class;
6120 case MONO_TOKEN_MEMBER_REF: {
6121 guint32 cols [MONO_MEMBERREF_SIZE];
6123 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
6124 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
6125 mono_metadata_decode_blob_size (sig, &sig);
6126 if (*sig == 0x6) { /* it's a field */
6128 MonoClassField *field;
6129 field = mono_field_from_token (image, token, &klass, context);
6131 *handle_class = mono_defaults.fieldhandle_class;
6135 meth = mono_get_method_full (image, token, NULL, context);
6137 *handle_class = mono_defaults.methodhandle_class;
6142 g_warning ("Unknown token 0x%08x in ldtoken", token);
6149 * This function might need to call runtime functions so it can't be part
6150 * of the metadata library.
6152 static MonoLookupDynamicToken lookup_dynamic = NULL;
6155 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
6157 lookup_dynamic = func;
6161 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
6163 MonoClass *handle_class;
6165 return lookup_dynamic (image, token, TRUE, &handle_class, context);
6169 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
6171 return lookup_dynamic (image, token, valid_token, handle_class, context);
6174 static MonoGetCachedClassInfo get_cached_class_info = NULL;
6177 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
6179 get_cached_class_info = func;
6183 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
6185 if (!get_cached_class_info)
6188 return get_cached_class_info (klass, res);
6192 mono_install_get_class_from_name (MonoGetClassFromName func)
6194 get_class_from_name = func;
6198 mono_class_get_image (MonoClass *klass)
6200 return klass->image;
6204 * mono_class_get_element_class:
6205 * @klass: the MonoClass to act on
6207 * Returns: the element class of an array or an enumeration.
6210 mono_class_get_element_class (MonoClass *klass)
6212 return klass->element_class;
6216 * mono_class_is_valuetype:
6217 * @klass: the MonoClass to act on
6219 * Returns: true if the MonoClass represents a ValueType.
6222 mono_class_is_valuetype (MonoClass *klass)
6224 return klass->valuetype;
6228 * mono_class_is_enum:
6229 * @klass: the MonoClass to act on
6231 * Returns: true if the MonoClass represents an enumeration.
6234 mono_class_is_enum (MonoClass *klass)
6236 return klass->enumtype;
6240 * mono_class_enum_basetype:
6241 * @klass: the MonoClass to act on
6243 * Returns: the underlying type representation for an enumeration.
6246 mono_class_enum_basetype (MonoClass *klass)
6248 return klass->enum_basetype;
6252 * mono_class_get_parent
6253 * @klass: the MonoClass to act on
6255 * Returns: the parent class for this class.
6258 mono_class_get_parent (MonoClass *klass)
6260 return klass->parent;
6264 * mono_class_get_nesting_type;
6265 * @klass: the MonoClass to act on
6267 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
6270 mono_class_get_nesting_type (MonoClass *klass)
6272 return klass->nested_in;
6276 * mono_class_get_rank:
6277 * @klass: the MonoClass to act on
6279 * Returns: the rank for the array (the number of dimensions).
6282 mono_class_get_rank (MonoClass *klass)
6288 * mono_class_get_flags:
6289 * @klass: the MonoClass to act on
6291 * The type flags from the TypeDef table from the metadata.
6292 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
6295 * Returns: the flags from the TypeDef table.
6298 mono_class_get_flags (MonoClass *klass)
6300 return klass->flags;
6304 * mono_class_get_name
6305 * @klass: the MonoClass to act on
6307 * Returns: the name of the class.
6310 mono_class_get_name (MonoClass *klass)
6316 * mono_class_get_namespace:
6317 * @klass: the MonoClass to act on
6319 * Returns: the namespace of the class.
6322 mono_class_get_namespace (MonoClass *klass)
6324 return klass->name_space;
6328 * mono_class_get_type:
6329 * @klass: the MonoClass to act on
6331 * This method returns the internal Type representation for the class.
6333 * Returns: the MonoType from the class.
6336 mono_class_get_type (MonoClass *klass)
6338 return &klass->byval_arg;
6342 * mono_class_get_type_token
6343 * @klass: the MonoClass to act on
6345 * This method returns type token for the class.
6347 * Returns: the type token for the class.
6350 mono_class_get_type_token (MonoClass *klass)
6352 return klass->type_token;
6356 * mono_class_get_byref_type:
6357 * @klass: the MonoClass to act on
6362 mono_class_get_byref_type (MonoClass *klass)
6364 return &klass->this_arg;
6368 * mono_class_num_fields:
6369 * @klass: the MonoClass to act on
6371 * Returns: the number of static and instance fields in the class.
6374 mono_class_num_fields (MonoClass *klass)
6376 return klass->field.count;
6380 * mono_class_num_methods:
6381 * @klass: the MonoClass to act on
6383 * Returns: the number of methods in the class.
6386 mono_class_num_methods (MonoClass *klass)
6388 return klass->method.count;
6392 * mono_class_num_properties
6393 * @klass: the MonoClass to act on
6395 * Returns: the number of properties in the class.
6398 mono_class_num_properties (MonoClass *klass)
6400 mono_class_setup_properties (klass);
6402 return klass->property.count;
6406 * mono_class_num_events:
6407 * @klass: the MonoClass to act on
6409 * Returns: the number of events in the class.
6412 mono_class_num_events (MonoClass *klass)
6414 mono_class_setup_events (klass);
6416 return klass->event.count;
6420 * mono_class_get_fields:
6421 * @klass: the MonoClass to act on
6423 * This routine is an iterator routine for retrieving the fields in a class.
6425 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6426 * iterate over all of the elements. When no more values are
6427 * available, the return value is NULL.
6429 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
6432 mono_class_get_fields (MonoClass* klass, gpointer *iter)
6434 MonoClassField* field;
6438 mono_class_setup_fields_locking (klass);
6439 if (klass->exception_type)
6441 /* start from the first */
6442 if (klass->field.count) {
6443 return *iter = &klass->fields [0];
6451 if (field < &klass->fields [klass->field.count]) {
6452 return *iter = field;
6458 * mono_class_get_methods
6459 * @klass: the MonoClass to act on
6461 * This routine is an iterator routine for retrieving the fields in a class.
6463 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6464 * iterate over all of the elements. When no more values are
6465 * available, the return value is NULL.
6467 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
6470 mono_class_get_methods (MonoClass* klass, gpointer *iter)
6472 MonoMethod** method;
6476 mono_class_init (klass);
6478 mono_class_setup_methods (klass);
6479 /* start from the first */
6480 if (klass->method.count) {
6481 *iter = &klass->methods [0];
6482 return klass->methods [0];
6490 if (method < &klass->methods [klass->method.count]) {
6498 * mono_class_get_virtual_methods:
6500 * Iterate over the virtual methods of KLASS.
6502 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
6505 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
6507 MonoMethod** method;
6510 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
6512 mono_class_setup_methods (klass);
6513 /* start from the first */
6514 method = &klass->methods [0];
6519 while (method < &klass->methods [klass->method.count]) {
6520 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
6524 if (method < &klass->methods [klass->method.count]) {
6531 /* Search directly in metadata to avoid calling setup_methods () */
6532 MonoMethod *res = NULL;
6538 start_index = GPOINTER_TO_UINT (*iter);
6541 for (i = start_index; i < klass->method.count; ++i) {
6542 guint32 cols [MONO_METHOD_SIZE];
6544 /* class->method.first points into the methodptr table */
6545 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6547 if (cols [MONO_METHOD_FLAGS] & METHOD_ATTRIBUTE_VIRTUAL)
6551 if (i < klass->method.count) {
6552 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6553 /* Add 1 here so the if (*iter) check fails */
6554 *iter = GUINT_TO_POINTER (i + 1);
6563 * mono_class_get_properties:
6564 * @klass: the MonoClass to act on
6566 * This routine is an iterator routine for retrieving the properties in a class.
6568 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6569 * iterate over all of the elements. When no more values are
6570 * available, the return value is NULL.
6572 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
6575 mono_class_get_properties (MonoClass* klass, gpointer *iter)
6577 MonoProperty* property;
6581 mono_class_init (klass);
6583 mono_class_setup_properties (klass);
6584 /* start from the first */
6585 if (klass->property.count) {
6586 return *iter = &klass->properties [0];
6594 if (property < &klass->properties [klass->property.count]) {
6595 return *iter = property;
6601 * mono_class_get_events:
6602 * @klass: the MonoClass to act on
6604 * This routine is an iterator routine for retrieving the properties in a class.
6606 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6607 * iterate over all of the elements. When no more values are
6608 * available, the return value is NULL.
6610 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
6613 mono_class_get_events (MonoClass* klass, gpointer *iter)
6619 mono_class_init (klass);
6621 mono_class_setup_events (klass);
6622 /* start from the first */
6623 if (klass->event.count) {
6624 return *iter = &klass->events [0];
6632 if (event < &klass->events [klass->event.count]) {
6633 return *iter = event;
6639 * mono_class_get_interfaces
6640 * @klass: the MonoClass to act on
6642 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
6644 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6645 * iterate over all of the elements. When no more values are
6646 * available, the return value is NULL.
6648 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6651 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
6657 mono_class_init (klass);
6659 /* start from the first */
6660 if (klass->interface_count) {
6661 *iter = &klass->interfaces [0];
6662 return klass->interfaces [0];
6670 if (iface < &klass->interfaces [klass->interface_count]) {
6678 * mono_class_get_nested_types
6679 * @klass: the MonoClass to act on
6681 * This routine is an iterator routine for retrieving the nested types of a class.
6682 * This works only if @klass is non-generic, or a generic type definition.
6684 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6685 * iterate over all of the elements. When no more values are
6686 * available, the return value is NULL.
6688 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6691 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
6699 mono_class_init (klass);
6700 if (!klass->nested_classes_inited) {
6701 if (!klass->type_token)
6702 klass->nested_classes_inited = TRUE;
6703 mono_loader_lock ();
6704 if (!klass->nested_classes_inited) {
6705 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
6708 guint32 cols [MONO_NESTED_CLASS_SIZE];
6709 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
6710 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
6711 klass->nested_classes = g_list_prepend_mempool (klass->nested_classes, klass->image->mempool, nclass);
6713 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
6716 mono_memory_barrier ();
6717 klass->nested_classes_inited = TRUE;
6718 mono_loader_unlock ();
6722 /* start from the first */
6723 if (klass->nested_classes) {
6724 *iter = klass->nested_classes;
6725 return klass->nested_classes->data;
6727 /* no nested types */
6741 * mono_field_get_name:
6742 * @field: the MonoClassField to act on
6744 * Returns: the name of the field.
6747 mono_field_get_name (MonoClassField *field)
6753 * mono_field_get_type:
6754 * @field: the MonoClassField to act on
6756 * Returns: MonoType of the field.
6759 mono_field_get_type (MonoClassField *field)
6765 * mono_field_get_type:
6766 * @field: the MonoClassField to act on
6768 * Returns: MonoClass where the field was defined.
6771 mono_field_get_parent (MonoClassField *field)
6773 return field->parent;
6777 * mono_field_get_flags;
6778 * @field: the MonoClassField to act on
6780 * The metadata flags for a field are encoded using the
6781 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6783 * Returns: the flags for the field.
6786 mono_field_get_flags (MonoClassField *field)
6788 return field->type->attrs;
6792 * mono_field_get_offset;
6793 * @field: the MonoClassField to act on
6795 * Returns: the field offset.
6798 mono_field_get_offset (MonoClassField *field)
6800 return field->offset;
6804 mono_field_get_rva (MonoClassField *field)
6808 MonoClass *klass = field->parent;
6810 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
6812 if (!klass->field_def_values) {
6813 mono_loader_lock ();
6814 if (!klass->field_def_values)
6815 klass->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
6816 mono_loader_unlock ();
6819 field_index = mono_field_get_index (field);
6821 if (!klass->field_def_values [field_index].data && !klass->image->dynamic) {
6822 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
6824 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
6825 klass->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
6828 return klass->field_def_values [field_index].data;
6832 * mono_field_get_data;
6833 * @field: the MonoClassField to act on
6835 * Returns: pointer to the metadata constant value or to the field
6836 * data if it has an RVA flag.
6839 mono_field_get_data (MonoClassField *field)
6841 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
6842 MonoTypeEnum def_type;
6844 return mono_class_get_field_default_value (field, &def_type);
6845 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
6846 return mono_field_get_rva (field);
6853 * mono_property_get_name:
6854 * @prop: the MonoProperty to act on
6856 * Returns: the name of the property
6859 mono_property_get_name (MonoProperty *prop)
6865 * mono_property_get_set_method
6866 * @prop: the MonoProperty to act on.
6868 * Returns: the setter method of the property (A MonoMethod)
6871 mono_property_get_set_method (MonoProperty *prop)
6877 * mono_property_get_get_method
6878 * @prop: the MonoProperty to act on.
6880 * Returns: the setter method of the property (A MonoMethod)
6883 mono_property_get_get_method (MonoProperty *prop)
6889 * mono_property_get_parent:
6890 * @prop: the MonoProperty to act on.
6892 * Returns: the MonoClass where the property was defined.
6895 mono_property_get_parent (MonoProperty *prop)
6897 return prop->parent;
6901 * mono_property_get_flags:
6902 * @prop: the MonoProperty to act on.
6904 * The metadata flags for a property are encoded using the
6905 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6907 * Returns: the flags for the property.
6910 mono_property_get_flags (MonoProperty *prop)
6916 * mono_event_get_name:
6917 * @event: the MonoEvent to act on
6919 * Returns: the name of the event.
6922 mono_event_get_name (MonoEvent *event)
6928 * mono_event_get_add_method:
6929 * @event: The MonoEvent to act on.
6931 * Returns: the @add' method for the event (a MonoMethod).
6934 mono_event_get_add_method (MonoEvent *event)
6940 * mono_event_get_remove_method:
6941 * @event: The MonoEvent to act on.
6943 * Returns: the @remove method for the event (a MonoMethod).
6946 mono_event_get_remove_method (MonoEvent *event)
6948 return event->remove;
6952 * mono_event_get_raise_method:
6953 * @event: The MonoEvent to act on.
6955 * Returns: the @raise method for the event (a MonoMethod).
6958 mono_event_get_raise_method (MonoEvent *event)
6960 return event->raise;
6964 * mono_event_get_parent:
6965 * @event: the MonoEvent to act on.
6967 * Returns: the MonoClass where the event is defined.
6970 mono_event_get_parent (MonoEvent *event)
6972 return event->parent;
6976 * mono_event_get_flags
6977 * @event: the MonoEvent to act on.
6979 * The metadata flags for an event are encoded using the
6980 * EVENT_* constants. See the tabledefs.h file for details.
6982 * Returns: the flags for the event.
6985 mono_event_get_flags (MonoEvent *event)
6987 return event->attrs;
6991 * mono_class_get_method_from_name:
6992 * @klass: where to look for the method
6993 * @name_space: name of the method
6994 * @param_count: number of parameters. -1 for any number.
6996 * Obtains a MonoMethod with a given name and number of parameters.
6997 * It only works if there are no multiple signatures for any given method name.
7000 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
7002 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
7006 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
7008 MonoMethod *res = NULL;
7011 /* Search directly in the metadata to avoid calling setup_methods () */
7012 for (i = 0; i < klass->method.count; ++i) {
7013 guint32 cols [MONO_METHOD_SIZE];
7016 /* class->method.first points into the methodptr table */
7017 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
7019 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
7020 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
7021 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
7032 * mono_class_get_method_from_name_flags:
7033 * @klass: where to look for the method
7034 * @name_space: name of the method
7035 * @param_count: number of parameters. -1 for any number.
7036 * @flags: flags which must be set in the method
7038 * Obtains a MonoMethod with a given name and number of parameters.
7039 * It only works if there are no multiple signatures for any given method name.
7042 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
7044 MonoMethod *res = NULL;
7047 mono_class_init (klass);
7049 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
7050 mono_class_setup_methods (klass);
7051 for (i = 0; i < klass->method.count; ++i) {
7052 MonoMethod *method = klass->methods [i];
7054 if (method->name[0] == name [0] &&
7055 !strcmp (name, method->name) &&
7056 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
7057 ((method->flags & flags) == flags)) {
7064 res = find_method_in_metadata (klass, name, param_count, flags);
7071 * mono_class_set_failure:
7072 * @klass: class in which the failure was detected
7073 * @ex_type: the kind of exception/error to be thrown (later)
7074 * @ex_data: exception data (specific to each type of exception/error)
7076 * Keep a detected failure informations in the class for later processing.
7077 * Note that only the first failure is kept.
7079 * LOCKING: Acquires the loader lock.
7082 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
7084 if (klass->exception_type)
7087 mono_loader_lock ();
7088 klass->exception_type = ex_type;
7090 mono_property_hash_insert (klass->image->property_hash, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
7091 mono_loader_unlock ();
7097 * mono_class_get_exception_data:
7099 * Return the exception_data property of KLASS.
7101 * LOCKING: Acquires the loader lock.
7104 mono_class_get_exception_data (MonoClass *klass)
7108 mono_loader_lock ();
7109 res = mono_property_hash_lookup (klass->image->property_hash, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
7110 mono_loader_unlock ();
7115 * mono_classes_init:
7117 * Initialize the resources used by this module.
7120 mono_classes_init (void)
7125 * mono_classes_cleanup:
7127 * Free the resources used by this module.
7130 mono_classes_cleanup (void)
7132 if (global_interface_bitset)
7133 mono_bitset_free (global_interface_bitset);
7137 * mono_class_get_exception_for_failure:
7138 * @klass: class in which the failure was detected
7140 * Return a constructed MonoException than the caller can then throw
7141 * using mono_raise_exception - or NULL if no failure is present (or
7142 * doesn't result in an exception).
7145 mono_class_get_exception_for_failure (MonoClass *klass)
7147 gpointer exception_data = mono_class_get_exception_data (klass);
7149 switch (klass->exception_type) {
7150 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
7151 MonoDomain *domain = mono_domain_get ();
7152 MonoSecurityManager* secman = mono_security_manager_get_methods ();
7153 MonoMethod *method = exception_data;
7154 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
7155 MonoObject *exc = NULL;
7159 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
7160 args [2] = mono_type_get_object (domain, &klass->byval_arg);
7161 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
7163 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
7164 return (MonoException*) exc;
7166 case MONO_EXCEPTION_TYPE_LOAD: {
7169 char *str = mono_type_get_full_name (klass);
7170 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
7171 name = mono_string_new (mono_domain_get (), str);
7173 ex = mono_get_exception_type_load (name, astr);
7177 case MONO_EXCEPTION_MISSING_METHOD: {
7178 char *class_name = exception_data;
7179 char *assembly_name = class_name + strlen (class_name) + 1;
7181 return mono_get_exception_missing_method (class_name, assembly_name);
7183 case MONO_EXCEPTION_MISSING_FIELD: {
7184 char *class_name = exception_data;
7185 char *member_name = class_name + strlen (class_name) + 1;
7187 return mono_get_exception_missing_field (class_name, member_name);
7189 case MONO_EXCEPTION_FILE_NOT_FOUND: {
7190 char *msg_format = exception_data;
7191 char *assembly_name = msg_format + strlen (msg_format) + 1;
7192 char *msg = g_strdup_printf (msg_format, assembly_name);
7195 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
7201 case MONO_EXCEPTION_BAD_IMAGE: {
7202 return mono_get_exception_bad_image_format (exception_data);
7205 MonoLoaderError *error;
7208 error = mono_loader_get_last_error ();
7210 ex = mono_loader_error_prepare_exception (error);
7214 /* TODO - handle other class related failures */
7221 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
7223 outer_klass = mono_class_get_generic_type_definition (outer_klass);
7224 inner_klass = mono_class_get_generic_type_definition (inner_klass);
7226 if (outer_klass == inner_klass)
7228 inner_klass = inner_klass->nested_in;
7229 } while (inner_klass);
7234 mono_class_get_generic_type_definition (MonoClass *klass)
7236 return klass->generic_class ? klass->generic_class->container_class : klass;
7240 * Check if @klass is a subtype of @parent ignoring generic instantiations.
7242 * Generic instantiations are ignored for all super types of @klass.
7244 * Visibility checks ignoring generic instantiations.
7247 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
7250 klass = mono_class_get_generic_type_definition (klass);
7251 parent = mono_class_get_generic_type_definition (parent);
7253 for (i = 0; i < klass->idepth; ++i) {
7254 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
7260 * Subtype can only access parent members with family protection if the site object
7261 * is subclass of Subtype. For example:
7262 * class A { protected int x; }
7264 * void valid_access () {
7268 * void invalid_access () {
7275 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
7277 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
7280 if (context_klass == NULL)
7282 /*if access_klass is not member_klass context_klass must be type compat*/
7283 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
7289 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
7292 if (accessing == accessed)
7294 if (!accessed || !accessing)
7296 mono_assembly_load_friends (accessed);
7297 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
7298 MonoAssemblyName *friend = tmp->data;
7299 /* Be conservative with checks */
7302 if (strcmp (accessing->aname.name, friend->name))
7304 if (friend->public_key_token [0]) {
7305 if (!accessing->aname.public_key_token [0])
7307 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
7316 * If klass is a generic type or if it is derived from a generic type, return the
7317 * MonoClass of the generic definition
7318 * Returns NULL if not found
7321 get_generic_definition_class (MonoClass *klass)
7324 if (klass->generic_class && klass->generic_class->container_class)
7325 return klass->generic_class->container_class;
7326 klass = klass->parent;
7332 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
7335 for (i = 0; i < ginst->type_argc; ++i) {
7336 MonoType *type = ginst->type_argv[i];
7337 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
7339 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
7346 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
7348 int access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7350 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
7353 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
7356 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
7359 switch (access_level) {
7360 case TYPE_ATTRIBUTE_NOT_PUBLIC:
7361 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7363 case TYPE_ATTRIBUTE_PUBLIC:
7366 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
7369 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
7370 return is_nesting_type (member_klass, access_klass);
7372 case TYPE_ATTRIBUTE_NESTED_FAMILY:
7373 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7375 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
7376 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7378 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
7379 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
7380 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7382 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
7383 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
7384 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7389 /* FIXME: check visibility of type, too */
7391 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
7393 MonoClass *member_generic_def;
7394 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
7395 access_klass->generic_container) &&
7396 (member_generic_def = get_generic_definition_class (member_klass))) {
7397 MonoClass *access_container;
7399 if (access_klass->generic_container)
7400 access_container = access_klass;
7402 access_container = access_klass->generic_class->container_class;
7404 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
7408 /* Partition I 8.5.3.2 */
7409 /* the access level values are the same for fields and methods */
7410 switch (access_level) {
7411 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
7412 /* same compilation unit */
7413 return access_klass->image == member_klass->image;
7414 case FIELD_ATTRIBUTE_PRIVATE:
7415 return access_klass == member_klass;
7416 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
7417 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
7418 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
7421 case FIELD_ATTRIBUTE_ASSEMBLY:
7422 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7423 case FIELD_ATTRIBUTE_FAMILY:
7424 if (is_valid_family_access (access_klass, member_klass, context_klass))
7427 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
7428 if (is_valid_family_access (access_klass, member_klass, context_klass))
7430 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7431 case FIELD_ATTRIBUTE_PUBLIC:
7438 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
7440 /* FIXME: check all overlapping fields */
7441 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7443 MonoClass *nested = method->klass->nested_in;
7445 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7448 nested = nested->nested_in;
7455 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
7457 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7459 MonoClass *nested = method->klass->nested_in;
7461 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7464 nested = nested->nested_in;
7469 * with generics calls to explicit interface implementations can be expressed
7470 * directly: the method is private, but we must allow it. This may be opening
7471 * a hole or the generics code should handle this differently.
7472 * Maybe just ensure the interface type is public.
7474 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
7480 * mono_method_can_access_method_with_context:
7481 * @method: The caller method
7482 * @called: The called method
7483 * @context_klass:TThe static type on stack of the owner @called object used
7485 * This function must be used with instance calls, as they have more strict family accessibility.
7486 * It can be used with static mehthod, but context_klass should be NULL.
7488 * Returns: TRUE if caller have proper visibility and acessibility to @called
7491 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
7493 MonoClass *access_class = method->klass;
7494 MonoClass *member_class = called->klass;
7495 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7497 MonoClass *nested = access_class->nested_in;
7499 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7502 nested = nested->nested_in;
7509 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7512 if (called->is_inflated) {
7513 MonoMethodInflated * infl = (MonoMethodInflated*)called;
7514 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
7523 * mono_method_can_access_method_with_context:
7524 * @method: The caller method
7525 * @field: The accessed field
7526 * @context_klass: The static type on stack of the owner @field object used
7528 * This function must be used with instance fields, as they have more strict family accessibility.
7529 * It can be used with static fields, but context_klass should be NULL.
7531 * Returns: TRUE if caller have proper visibility and acessibility to @field
7534 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
7536 MonoClass *access_class = method->klass;
7537 MonoClass *member_class = field->parent;
7538 /* FIXME: check all overlapping fields */
7539 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7541 MonoClass *nested = access_class->nested_in;
7543 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7546 nested = nested->nested_in;
7553 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7559 * mono_type_is_valid_enum_basetype:
7560 * @type: The MonoType to check
7562 * Returns: TRUE if the type can be used as the basetype of an enum
7564 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
7565 switch (type->type) {
7568 case MONO_TYPE_BOOLEAN:
7571 case MONO_TYPE_CHAR:
7584 * mono_class_is_valid_enum:
7585 * @klass: An enum class to be validated
7587 * This method verify the required properties an enum should have.
7589 * Returns: TRUE if the informed enum class is valid
7591 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
7592 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
7593 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
7595 gboolean mono_class_is_valid_enum (MonoClass *klass) {
7596 MonoClassField * field;
7597 gpointer iter = NULL;
7598 gboolean found_base_field = FALSE;
7600 g_assert (klass->enumtype);
7601 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
7602 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
7606 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
7609 while ((field = mono_class_get_fields (klass, &iter))) {
7610 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
7611 if (found_base_field)
7613 found_base_field = TRUE;
7614 if (!mono_type_is_valid_enum_basetype (field->type))
7619 if (!found_base_field)
7622 if (klass->method.count > 0)
7629 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
7631 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
7635 * mono_class_generic_sharing_enabled:
7638 * Returns whether generic sharing is enabled for class.
7640 * This is a stop-gap measure to slowly introduce generic sharing
7641 * until we have all the issues sorted out, at which time this
7642 * function will disappear and generic sharing will always be enabled.
7645 mono_class_generic_sharing_enabled (MonoClass *class)
7647 #if defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__mono_ppc__)
7648 static gboolean supported = TRUE;
7650 /* Not supported by the JIT backends */
7651 static gboolean supported = FALSE;
7653 static int generic_sharing = MONO_GENERIC_SHARING_NONE;
7654 static gboolean inited = FALSE;
7660 generic_sharing = MONO_GENERIC_SHARING_ALL;
7662 generic_sharing = MONO_GENERIC_SHARING_NONE;
7664 if ((option = g_getenv ("MONO_GENERIC_SHARING"))) {
7665 if (strcmp (option, "corlib") == 0)
7666 generic_sharing = MONO_GENERIC_SHARING_CORLIB;
7667 else if (strcmp (option, "collections") == 0)
7668 generic_sharing = MONO_GENERIC_SHARING_COLLECTIONS;
7669 else if (strcmp (option, "all") == 0)
7670 generic_sharing = MONO_GENERIC_SHARING_ALL;
7671 else if (strcmp (option, "none") == 0)
7672 generic_sharing = MONO_GENERIC_SHARING_NONE;
7674 g_warning ("Unknown generic sharing option `%s'.", option);
7678 generic_sharing = MONO_GENERIC_SHARING_NONE;
7683 switch (generic_sharing) {
7684 case MONO_GENERIC_SHARING_NONE:
7686 case MONO_GENERIC_SHARING_ALL:
7688 case MONO_GENERIC_SHARING_CORLIB :
7689 return class->image == mono_defaults.corlib;
7690 case MONO_GENERIC_SHARING_COLLECTIONS:
7691 if (class->image != mono_defaults.corlib)
7693 while (class->nested_in)
7694 class = class->nested_in;
7695 return g_str_has_prefix (class->name_space, "System.Collections.Generic");
7697 g_assert_not_reached ();
7702 * mono_class_setup_interface_id:
7704 * Initializes MonoClass::interface_id if required.
7706 * LOCKING: Acquires the loader lock.
7709 mono_class_setup_interface_id (MonoClass *class)
7711 mono_loader_lock ();
7712 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
7713 class->interface_id = mono_get_unique_iid (class);
7714 mono_loader_unlock ();