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);
1058 * Fetch all the field information.
1060 for (i = 0; i < top; i++){
1061 int idx = class->field.first + i;
1062 field = &class->fields [i];
1064 field->parent = class;
1066 if (class->generic_class) {
1067 MonoClassField *gfield = &gklass->fields [i];
1069 field->name = mono_field_get_name (gfield);
1070 /*This memory must come from the image mempool as we don't have a chance to free it.*/
1071 field->type = mono_class_inflate_generic_type_with_mempool_no_copy (class->image->mempool, gfield->type, mono_class_get_context (class));
1072 g_assert (field->type->attrs == gfield->type->attrs);
1073 if (mono_field_is_deleted (field))
1075 field->offset = gfield->offset;
1078 guint32 cols [MONO_FIELD_SIZE];
1080 /* class->field.first and idx points into the fieldptr table */
1081 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1082 /* The name is needed for fieldrefs */
1083 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
1084 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1085 mono_metadata_decode_value (sig, &sig);
1086 /* FIELD signature == 0x06 */
1087 g_assert (*sig == 0x06);
1088 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1090 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1093 if (mono_field_is_deleted (field))
1095 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1097 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1098 field->offset = offset;
1099 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1100 g_warning ("%s not initialized correctly (missing field layout info for %s)",
1101 class->name, mono_field_get_name (field));
1105 /* Only do these checks if we still think this type is blittable */
1106 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1107 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1110 MonoClass *field_class = mono_class_from_mono_type (field->type);
1112 mono_class_setup_fields (field_class);
1113 if (!field_class || !field_class->blittable)
1118 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1119 class->enum_basetype = field->type;
1120 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
1121 blittable = class->element_class->blittable;
1124 /* The def_value of fields is compute lazily during vtable creation */
1127 if (class == mono_defaults.string_class)
1130 class->blittable = blittable;
1132 if (class->enumtype && !class->enum_basetype) {
1133 if (!((strcmp (class->name, "Enum") == 0) && (strcmp (class->name_space, "System") == 0)))
1136 if (explicit_size && real_size) {
1137 class->instance_size = MAX (real_size, class->instance_size);
1140 if (class->exception_type)
1142 mono_class_layout_fields (class);
1146 * mono_class_setup_fields_locking:
1147 * @class: The class to initialize
1149 * Initializes the class->fields array of fields.
1150 * Aquires the loader lock.
1153 mono_class_setup_fields_locking (MonoClass *class)
1155 mono_loader_lock ();
1156 mono_class_setup_fields (class);
1157 mono_loader_unlock ();
1161 * mono_class_has_references:
1163 * Returns whenever @klass->has_references is set, initializing it if needed.
1164 * Aquires the loader lock.
1167 mono_class_has_references (MonoClass *klass)
1169 if (klass->init_pending) {
1170 /* Be conservative */
1173 mono_class_init (klass);
1175 return klass->has_references;
1179 /* useful until we keep track of gc-references in corlib etc. */
1181 #define IS_GC_REFERENCE(t) FALSE
1183 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1187 * mono_type_get_basic_type_from_generic:
1190 * Returns a closed type corresponding to the possibly open type
1194 mono_type_get_basic_type_from_generic (MonoType *type)
1196 /* When we do generic sharing we let type variables stand for reference types. */
1197 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1198 return &mono_defaults.object_class->byval_arg;
1203 * mono_class_layout_fields:
1206 * Compute the placement of fields inside an object or struct, according to
1207 * the layout rules and set the following fields in @class:
1208 * - has_references (if the class contains instance references firled or structs that contain references)
1209 * - has_static_refs (same, but for static fields)
1210 * - instance_size (size of the object in memory)
1211 * - class_size (size needed for the static fields)
1212 * - size_inited (flag set when the instance_size is set)
1214 * LOCKING: this is supposed to be called with the loader lock held.
1217 mono_class_layout_fields (MonoClass *class)
1220 const int top = class->field.count;
1221 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1222 guint32 pass, passes, real_size;
1223 gboolean gc_aware_layout = FALSE;
1224 MonoClassField *field;
1227 * When we do generic sharing we need to have layout
1228 * information for open generic classes (either with a generic
1229 * context containing type variables or with a generic
1230 * container), so we don't return in that case anymore.
1234 * Enable GC aware auto layout: in this mode, reference
1235 * fields are grouped together inside objects, increasing collector
1237 * Requires that all classes whose layout is known to native code be annotated
1238 * with [StructLayout (LayoutKind.Sequential)]
1239 * Value types have gc_aware_layout disabled by default, as per
1240 * what the default is for other runtimes.
1242 /* corlib is missing [StructLayout] directives in many places */
1243 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1244 if (class->image != mono_defaults.corlib &&
1245 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1246 gc_aware_layout = TRUE;
1247 /* from System.dll, used in metadata/process.h */
1248 if (strcmp (class->name, "ProcessStartInfo") == 0)
1249 gc_aware_layout = FALSE;
1252 /* Compute klass->has_references */
1254 * Process non-static fields first, since static fields might recursively
1255 * refer to the class itself.
1257 for (i = 0; i < top; i++) {
1260 field = &class->fields [i];
1262 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1263 ftype = mono_type_get_underlying_type (field->type);
1264 ftype = mono_type_get_basic_type_from_generic (ftype);
1265 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1266 class->has_references = TRUE;
1270 for (i = 0; i < top; i++) {
1273 field = &class->fields [i];
1275 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1276 ftype = mono_type_get_underlying_type (field->type);
1277 ftype = mono_type_get_basic_type_from_generic (ftype);
1278 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1279 class->has_static_refs = TRUE;
1283 for (i = 0; i < top; i++) {
1286 field = &class->fields [i];
1288 ftype = mono_type_get_underlying_type (field->type);
1289 ftype = mono_type_get_basic_type_from_generic (ftype);
1290 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1291 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1292 class->has_static_refs = TRUE;
1294 class->has_references = TRUE;
1299 * Compute field layout and total size (not considering static fields)
1303 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1304 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1306 if (gc_aware_layout)
1311 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1315 real_size = class->parent->instance_size;
1317 real_size = sizeof (MonoObject);
1319 for (pass = 0; pass < passes; ++pass) {
1320 for (i = 0; i < top; i++){
1325 field = &class->fields [i];
1327 if (mono_field_is_deleted (field))
1329 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1332 ftype = mono_type_get_underlying_type (field->type);
1333 ftype = mono_type_get_basic_type_from_generic (ftype);
1334 if (gc_aware_layout) {
1335 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1344 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1345 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1346 /* This field is a hack inserted by MCS to empty structures */
1350 size = mono_type_size (field->type, &align);
1352 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1353 align = class->packing_size ? MIN (class->packing_size, align): align;
1354 /* if the field has managed references, we need to force-align it
1357 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1358 align = MAX (align, sizeof (gpointer));
1360 class->min_align = MAX (align, class->min_align);
1361 field->offset = real_size;
1362 field->offset += align - 1;
1363 field->offset &= ~(align - 1);
1364 real_size = field->offset + size;
1367 class->instance_size = MAX (real_size, class->instance_size);
1369 if (class->instance_size & (class->min_align - 1)) {
1370 class->instance_size += class->min_align - 1;
1371 class->instance_size &= ~(class->min_align - 1);
1375 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1377 for (i = 0; i < top; i++) {
1382 field = &class->fields [i];
1385 * There must be info about all the fields in a type if it
1386 * uses explicit layout.
1389 if (mono_field_is_deleted (field))
1391 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1394 size = mono_type_size (field->type, &align);
1395 class->min_align = MAX (align, class->min_align);
1398 * When we get here, field->offset is already set by the
1399 * loader (for either runtime fields or fields loaded from metadata).
1400 * The offset is from the start of the object: this works for both
1401 * classes and valuetypes.
1403 field->offset += sizeof (MonoObject);
1404 ftype = mono_type_get_underlying_type (field->type);
1405 ftype = mono_type_get_basic_type_from_generic (ftype);
1406 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1407 if (field->offset % sizeof (gpointer)) {
1408 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1415 real_size = MAX (real_size, size + field->offset);
1417 class->instance_size = MAX (real_size, class->instance_size);
1421 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1423 * For small structs, set min_align to at least the struct size to improve
1424 * performance, and since the JIT memset/memcpy code assumes this and generates
1425 * unaligned accesses otherwise. See #78990 for a testcase.
1427 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1428 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1431 class->size_inited = 1;
1434 * Compute static field layout and size
1436 for (i = 0; i < top; i++){
1440 field = &class->fields [i];
1442 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1444 if (mono_field_is_deleted (field))
1447 size = mono_type_size (field->type, &align);
1448 field->offset = class->sizes.class_size;
1449 field->offset += align - 1;
1450 field->offset &= ~(align - 1);
1451 class->sizes.class_size = field->offset + size;
1456 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1460 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1461 method->klass = class;
1462 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1463 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1464 method->signature = sig;
1465 method->name = name;
1468 if (name [0] == '.') {
1469 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1471 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1477 * mono_class_setup_methods:
1480 * Initializes the 'methods' array in the klass.
1481 * Calling this method should be avoided if possible since it allocates a lot
1482 * of long-living MonoMethod structures.
1483 * Methods belonging to an interface are assigned a sequential slot starting
1487 mono_class_setup_methods (MonoClass *class)
1490 MonoMethod **methods;
1495 mono_loader_lock ();
1497 if (class->methods) {
1498 mono_loader_unlock ();
1502 if (class->generic_class) {
1503 MonoClass *gklass = class->generic_class->container_class;
1505 mono_class_init (gklass);
1506 mono_class_setup_methods (gklass);
1508 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1509 class->method.count = gklass->method.count;
1510 methods = g_new0 (MonoMethod *, class->method.count + 1);
1512 for (i = 0; i < class->method.count; i++) {
1513 methods [i] = mono_class_inflate_generic_method_full (
1514 gklass->methods [i], class, mono_class_get_context (class));
1516 } else if (class->rank) {
1517 MonoMethod *amethod;
1518 MonoMethodSignature *sig;
1519 int count_generic = 0, first_generic = 0;
1522 class->method.count = 3 + (class->rank > 1? 2: 1);
1524 if (class->interface_count) {
1525 count_generic = generic_array_methods (class);
1526 first_generic = class->method.count;
1527 class->method.count += class->interface_count * count_generic;
1530 methods = mono_image_alloc0 (class->image, sizeof (MonoMethod*) * class->method.count);
1532 sig = mono_metadata_signature_alloc (class->image, class->rank);
1533 sig->ret = &mono_defaults.void_class->byval_arg;
1534 sig->pinvoke = TRUE;
1535 sig->hasthis = TRUE;
1536 for (i = 0; i < class->rank; ++i)
1537 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1539 amethod = create_array_method (class, ".ctor", sig);
1540 methods [method_num++] = amethod;
1541 if (class->rank > 1) {
1542 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1543 sig->ret = &mono_defaults.void_class->byval_arg;
1544 sig->pinvoke = TRUE;
1545 sig->hasthis = TRUE;
1546 for (i = 0; i < class->rank * 2; ++i)
1547 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1549 amethod = create_array_method (class, ".ctor", sig);
1550 methods [method_num++] = amethod;
1552 /* element Get (idx11, [idx2, ...]) */
1553 sig = mono_metadata_signature_alloc (class->image, class->rank);
1554 sig->ret = &class->element_class->byval_arg;
1555 sig->pinvoke = TRUE;
1556 sig->hasthis = TRUE;
1557 for (i = 0; i < class->rank; ++i)
1558 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1559 amethod = create_array_method (class, "Get", sig);
1560 methods [method_num++] = amethod;
1561 /* element& Address (idx11, [idx2, ...]) */
1562 sig = mono_metadata_signature_alloc (class->image, class->rank);
1563 sig->ret = &class->element_class->this_arg;
1564 sig->pinvoke = TRUE;
1565 sig->hasthis = TRUE;
1566 for (i = 0; i < class->rank; ++i)
1567 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1568 amethod = create_array_method (class, "Address", sig);
1569 methods [method_num++] = amethod;
1570 /* void Set (idx11, [idx2, ...], element) */
1571 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1572 sig->ret = &mono_defaults.void_class->byval_arg;
1573 sig->pinvoke = TRUE;
1574 sig->hasthis = TRUE;
1575 for (i = 0; i < class->rank; ++i)
1576 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1577 sig->params [i] = &class->element_class->byval_arg;
1578 amethod = create_array_method (class, "Set", sig);
1579 methods [method_num++] = amethod;
1581 for (i = 0; i < class->interface_count; i++)
1582 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1584 methods = mono_image_alloc (class->image, sizeof (MonoMethod*) * class->method.count);
1585 for (i = 0; i < class->method.count; ++i) {
1586 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1587 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1591 if (MONO_CLASS_IS_INTERFACE (class))
1592 for (i = 0; i < class->method.count; ++i)
1593 methods [i]->slot = i;
1595 /* Needed because of the double-checking locking pattern */
1596 mono_memory_barrier ();
1598 class->methods = methods;
1600 if (mono_debugger_class_loaded_methods_func)
1601 mono_debugger_class_loaded_methods_func (class);
1603 mono_loader_unlock ();
1607 * mono_class_get_method_by_index:
1609 * Returns class->methods [index], initializing class->methods if neccesary.
1611 * LOCKING: Acquires the loader lock.
1614 mono_class_get_method_by_index (MonoClass *class, int index)
1616 /* Avoid calling setup_methods () if possible */
1617 if (class->generic_class && !class->methods) {
1618 MonoClass *gklass = class->generic_class->container_class;
1621 m = mono_class_inflate_generic_method_full (
1622 gklass->methods [index], class, mono_class_get_context (class));
1624 * If setup_methods () is called later for this class, no duplicates are created,
1625 * since inflate_generic_method guarantees that only one instance of a method
1626 * is created for each context.
1629 mono_class_setup_methods (class);
1630 g_assert (m == class->methods [index]);
1634 mono_class_setup_methods (class);
1635 g_assert (index >= 0 && index < class->method.count);
1636 return class->methods [index];
1641 * mono_class_get_inflated_method:
1643 * Given an inflated class CLASS and a method METHOD which should be a method of
1644 * CLASS's generic definition, return the inflated method corresponding to METHOD.
1647 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
1649 MonoClass *gklass = class->generic_class->container_class;
1652 mono_class_setup_methods (gklass);
1653 for (i = 0; i < gklass->method.count; ++i) {
1654 if (gklass->methods [i] == method) {
1656 return class->methods [i];
1658 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
1666 * mono_class_get_vtable_entry:
1668 * Returns class->vtable [offset], computing it if neccesary.
1669 * LOCKING: Acquires the loader lock.
1672 mono_class_get_vtable_entry (MonoClass *class, int offset)
1674 if (class->generic_class) {
1675 MonoClass *gklass = class->generic_class->container_class;
1676 mono_class_setup_vtable (gklass);
1677 if (gklass->vtable [offset]->wrapper_type != MONO_WRAPPER_STATIC_RGCTX_INVOKE)
1678 return mono_class_inflate_generic_method_full (gklass->vtable [offset], class, mono_class_get_context (class));
1681 if (class->rank == 1) {
1683 * szarrays do not overwrite any methods of Array, so we can avoid
1684 * initializing their vtables in some cases.
1686 mono_class_setup_vtable (class->parent);
1687 if (offset < class->parent->vtable_size)
1688 return class->parent->vtable [offset];
1691 mono_class_setup_vtable (class);
1692 return class->vtable [offset];
1696 mono_class_setup_properties (MonoClass *class)
1698 guint startm, endm, i, j;
1699 guint32 cols [MONO_PROPERTY_SIZE];
1700 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1701 MonoProperty *properties;
1704 if (class->properties)
1707 mono_loader_lock ();
1709 if (class->properties) {
1710 mono_loader_unlock ();
1714 if (class->generic_class) {
1715 MonoClass *gklass = class->generic_class->container_class;
1717 mono_class_init (gklass);
1718 mono_class_setup_properties (gklass);
1720 class->property = gklass->property;
1722 properties = g_new0 (MonoProperty, class->property.count + 1);
1724 for (i = 0; i < class->property.count; i++) {
1725 MonoProperty *prop = &properties [i];
1727 *prop = gklass->properties [i];
1730 prop->get = mono_class_inflate_generic_method_full (
1731 prop->get, class, mono_class_get_context (class));
1733 prop->set = mono_class_inflate_generic_method_full (
1734 prop->set, class, mono_class_get_context (class));
1736 prop->parent = class;
1739 class->property.first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1740 class->property.count = last - class->property.first;
1742 if (class->property.count)
1743 mono_class_setup_methods (class);
1745 properties = mono_image_alloc0 (class->image, sizeof (MonoProperty) * class->property.count);
1746 for (i = class->property.first; i < last; ++i) {
1747 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
1748 properties [i - class->property.first].parent = class;
1749 properties [i - class->property.first].attrs = cols [MONO_PROPERTY_FLAGS];
1750 properties [i - class->property.first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
1752 startm = mono_metadata_methods_from_property (class->image, i, &endm);
1753 for (j = startm; j < endm; ++j) {
1756 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1758 if (class->image->uncompressed_metadata)
1759 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1760 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1762 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1764 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1765 case METHOD_SEMANTIC_SETTER:
1766 properties [i - class->property.first].set = method;
1768 case METHOD_SEMANTIC_GETTER:
1769 properties [i - class->property.first].get = method;
1777 /*Flush any pending writes as we do double checked locking on class->properties */
1778 mono_memory_barrier ();
1780 /* Leave this assignment as the last op in the function */
1781 class->properties = properties;
1783 mono_loader_unlock ();
1787 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
1789 MonoMethod **om, **retval;
1792 for (om = methods, count = 0; *om; ++om, ++count)
1795 retval = g_new0 (MonoMethod*, count + 1);
1797 for (om = methods, count = 0; *om; ++om, ++count)
1798 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
1804 mono_class_setup_events (MonoClass *class)
1806 guint startm, endm, i, j;
1807 guint32 cols [MONO_EVENT_SIZE];
1808 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1815 mono_loader_lock ();
1817 if (class->events) {
1818 mono_loader_unlock ();
1822 if (class->generic_class) {
1823 MonoClass *gklass = class->generic_class->container_class;
1824 MonoGenericContext *context;
1826 mono_class_setup_events (gklass);
1827 class->event = gklass->event;
1829 class->events = g_new0 (MonoEvent, class->event.count);
1831 if (class->event.count)
1832 context = mono_class_get_context (class);
1834 for (i = 0; i < class->event.count; i++) {
1835 MonoEvent *event = &class->events [i];
1836 MonoEvent *gevent = &gklass->events [i];
1838 event->parent = class;
1839 event->name = gevent->name;
1840 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
1841 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
1842 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
1843 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
1844 event->attrs = gevent->attrs;
1847 mono_loader_unlock ();
1851 class->event.first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1852 class->event.count = last - class->event.first;
1854 if (class->event.count)
1855 mono_class_setup_methods (class);
1857 events = mono_image_alloc0 (class->image, sizeof (MonoEvent) * class->event.count);
1858 for (i = class->event.first; i < last; ++i) {
1859 MonoEvent *event = &events [i - class->event.first];
1861 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
1862 event->parent = class;
1863 event->attrs = cols [MONO_EVENT_FLAGS];
1864 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
1866 startm = mono_metadata_methods_from_event (class->image, i, &endm);
1867 for (j = startm; j < endm; ++j) {
1870 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1872 if (class->image->uncompressed_metadata)
1873 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1874 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1876 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1878 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1879 case METHOD_SEMANTIC_ADD_ON:
1880 event->add = method;
1882 case METHOD_SEMANTIC_REMOVE_ON:
1883 event->remove = method;
1885 case METHOD_SEMANTIC_FIRE:
1886 event->raise = method;
1888 case METHOD_SEMANTIC_OTHER: {
1891 if (event->other == NULL) {
1892 event->other = g_new0 (MonoMethod*, 2);
1894 while (event->other [n])
1896 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
1898 event->other [n] = method;
1899 /* NULL terminated */
1900 event->other [n + 1] = NULL;
1908 /*Flush any pending writes as we do double checked locking on class->properties */
1909 mono_memory_barrier ();
1911 /* Leave this assignment as the last op in the function */
1912 class->events = events;
1914 mono_loader_unlock ();
1918 * Global pool of interface IDs, represented as a bitset.
1919 * LOCKING: this is supposed to be accessed with the loader lock held.
1921 static MonoBitSet *global_interface_bitset = NULL;
1924 * mono_unload_interface_ids:
1925 * @bitset: bit set of interface IDs
1927 * When an image is unloaded, the interface IDs associated with
1928 * the image are put back in the global pool of IDs so the numbers
1932 mono_unload_interface_ids (MonoBitSet *bitset)
1934 mono_loader_lock ();
1935 mono_bitset_sub (global_interface_bitset, bitset);
1936 mono_loader_unlock ();
1940 * mono_get_unique_iid:
1943 * Assign a unique integer ID to the interface represented by @class.
1944 * The ID will positive and as small as possible.
1945 * LOCKING: this is supposed to be called with the loader lock held.
1946 * Returns: the new ID.
1949 mono_get_unique_iid (MonoClass *class)
1953 g_assert (MONO_CLASS_IS_INTERFACE (class));
1955 if (!global_interface_bitset) {
1956 global_interface_bitset = mono_bitset_new (128, 0);
1959 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
1961 int old_size = mono_bitset_size (global_interface_bitset);
1962 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
1963 mono_bitset_free (global_interface_bitset);
1964 global_interface_bitset = new_set;
1967 mono_bitset_set (global_interface_bitset, iid);
1968 /* set the bit also in the per-image set */
1969 if (class->image->interface_bitset) {
1970 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
1971 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
1972 mono_bitset_free (class->image->interface_bitset);
1973 class->image->interface_bitset = new_set;
1976 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
1978 mono_bitset_set (class->image->interface_bitset, iid);
1980 if (mono_print_vtable) {
1982 char *type_name = mono_type_full_name (&class->byval_arg);
1983 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
1984 generic_id = class->generic_class->context.class_inst->id;
1985 g_assert (generic_id != 0);
1989 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
1993 g_assert (iid <= 65535);
1998 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res)
2003 for (i = 0; i < klass->interface_count; i++) {
2004 ic = klass->interfaces [i];
2007 *res = g_ptr_array_new ();
2008 g_ptr_array_add (*res, ic);
2009 mono_class_init (ic);
2011 collect_implemented_interfaces_aux (ic, res);
2016 mono_class_get_implemented_interfaces (MonoClass *klass)
2018 GPtrArray *res = NULL;
2020 collect_implemented_interfaces_aux (klass, &res);
2025 compare_interface_ids (const void *p_key, const void *p_element) {
2026 const MonoClass *key = p_key;
2027 const MonoClass *element = *(MonoClass**) p_element;
2029 return (key->interface_id - element->interface_id);
2033 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2034 MonoClass **result = bsearch (
2036 klass->interfaces_packed,
2037 klass->interface_offsets_count,
2038 sizeof (MonoClass *),
2039 compare_interface_ids);
2041 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2048 print_implemented_interfaces (MonoClass *klass) {
2049 GPtrArray *ifaces = NULL;
2051 int ancestor_level = 0;
2053 printf ("Packed interface table for class %s has size %d\n", klass->name, klass->interface_offsets_count);
2054 for (i = 0; i < klass->interface_offsets_count; i++)
2055 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2056 klass->interfaces_packed [i]->interface_id,
2057 klass->interface_offsets_packed [i],
2058 klass->interfaces_packed [i]->method.count,
2059 klass->interfaces_packed [i]->name_space,
2060 klass->interfaces_packed [i]->name );
2061 printf ("Interface flags: ");
2062 for (i = 0; i <= klass->max_interface_id; i++)
2063 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2064 printf ("(%d,T)", i);
2066 printf ("(%d,F)", i);
2068 printf ("Dump interface flags:");
2069 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2070 printf (" %02X", klass->interface_bitmap [i]);
2072 while (klass != NULL) {
2073 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2074 ifaces = mono_class_get_implemented_interfaces (klass);
2076 for (i = 0; i < ifaces->len; i++) {
2077 MonoClass *ic = g_ptr_array_index (ifaces, i);
2078 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2079 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2081 mono_class_interface_offset (klass, ic),
2086 g_ptr_array_free (ifaces, TRUE);
2089 klass = klass->parent;
2093 /* this won't be needed once bug #325495 is completely fixed
2094 * though we'll need something similar to know which interfaces to allow
2095 * in arrays when they'll be lazyly created
2098 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2100 MonoClass *eclass = class->element_class;
2101 static MonoClass* generic_icollection_class = NULL;
2102 static MonoClass* generic_ienumerable_class = NULL;
2103 static MonoClass* generic_ienumerator_class = NULL;
2104 MonoClass *fclass = NULL;
2105 MonoClass **interfaces = NULL;
2106 int i, interface_count, real_count;
2108 gboolean internal_enumerator;
2109 gboolean eclass_is_valuetype;
2111 if (!mono_defaults.generic_ilist_class) {
2115 internal_enumerator = FALSE;
2116 eclass_is_valuetype = FALSE;
2117 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2118 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2120 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2122 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2123 eclass = eclass->element_class;
2124 internal_enumerator = TRUE;
2125 *is_enumerator = TRUE;
2133 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2134 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2136 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2138 if (!generic_icollection_class) {
2139 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2140 "System.Collections.Generic", "ICollection`1");
2141 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2142 "System.Collections.Generic", "IEnumerable`1");
2143 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2144 "System.Collections.Generic", "IEnumerator`1");
2147 mono_class_init (eclass);
2150 * Arrays in 2.0 need to implement a number of generic interfaces
2151 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2152 * on the element class). We collect the types needed to build the
2153 * instantiations in interfaces at intervals of 3, because 3 are
2154 * the generic interfaces needed to implement.
2156 if (eclass->valuetype) {
2157 if (eclass == mono_defaults.int16_class)
2158 fclass = mono_defaults.uint16_class;
2159 else if (eclass == mono_defaults.uint16_class)
2160 fclass = mono_defaults.int16_class;
2161 else if (eclass == mono_defaults.int32_class)
2162 fclass = mono_defaults.uint32_class;
2163 else if (eclass == mono_defaults.uint32_class)
2164 fclass = mono_defaults.int32_class;
2165 else if (eclass == mono_defaults.int64_class)
2166 fclass = mono_defaults.uint64_class;
2167 else if (eclass == mono_defaults.uint64_class)
2168 fclass = mono_defaults.int64_class;
2169 else if (eclass == mono_defaults.byte_class)
2170 fclass = mono_defaults.sbyte_class;
2171 else if (eclass == mono_defaults.sbyte_class)
2172 fclass = mono_defaults.byte_class;
2174 /* No additional interfaces for other value types */
2179 /* IList, ICollection, IEnumerable */
2180 real_count = interface_count = 3;
2181 interfaces = g_malloc0 (sizeof (MonoClass*) * interface_count);
2182 interfaces [0] = fclass;
2183 eclass_is_valuetype = TRUE;
2186 int idepth = eclass->idepth;
2187 if (!internal_enumerator)
2189 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2190 /* we add object for interfaces and the supertypes for the other
2191 * types. The last of the supertypes is the element class itself which we
2192 * already created the explicit interfaces for (so we include it for IEnumerator
2193 * and exclude it for arrays).
2195 if (MONO_CLASS_IS_INTERFACE (eclass))
2198 interface_count += idepth;
2199 /* IList, ICollection, IEnumerable */
2200 interface_count *= 3;
2201 real_count = interface_count;
2202 if (internal_enumerator)
2203 real_count += idepth + eclass->interface_offsets_count;
2204 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2205 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2206 interfaces [0] = mono_defaults.object_class;
2210 for (i = 0; i < idepth; i++) {
2211 mono_class_init (eclass->supertypes [i]);
2212 interfaces [j] = eclass->supertypes [i];
2216 if (all_interfaces) {
2217 for (i = 0; i < eclass->interface_offsets_count; i++) {
2218 interfaces [j] = eclass->interfaces_packed [i];
2222 for (i = 0; i < eclass->interface_count; i++) {
2223 interfaces [j] = eclass->interfaces [i];
2229 /* instantiate the generic interfaces */
2230 for (i = 0; i < interface_count; i += 3) {
2232 MonoClass *iface = interfaces [i];
2234 args [0] = &iface->byval_arg;
2235 interfaces [i] = mono_class_bind_generic_parameters (
2236 mono_defaults.generic_ilist_class, 1, args, FALSE);
2237 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));
2238 args [0] = &iface->byval_arg;
2239 interfaces [i + 1] = mono_class_bind_generic_parameters (
2240 generic_icollection_class, 1, args, FALSE);
2241 args [0] = &iface->byval_arg;
2242 interfaces [i + 2] = mono_class_bind_generic_parameters (
2243 generic_ienumerable_class, 1, args, FALSE);
2244 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i + 1]->byval_arg, 0));
2245 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i + 2]->byval_arg, 0));
2247 if (internal_enumerator) {
2249 /* instantiate IEnumerator<iface> */
2250 for (i = 0; i < interface_count; i++) {
2252 MonoClass *iface = interfaces [i];
2254 args [0] = &iface->byval_arg;
2255 interfaces [i] = mono_class_bind_generic_parameters (
2256 generic_ienumerator_class, 1, args, FALSE);
2257 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
2259 if (!eclass_is_valuetype) {
2260 j = interface_count;
2261 for (i = 0; i < eclass->idepth; i++) {
2263 args [0] = &eclass->supertypes [i]->byval_arg;
2264 interfaces [j] = mono_class_bind_generic_parameters (
2265 generic_ienumerator_class, 1, args, FALSE);
2266 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
2269 for (i = 0; i < eclass->interface_offsets_count; i++) {
2270 MonoClass *iface = eclass->interfaces_packed [i];
2272 args [0] = &iface->byval_arg;
2273 interfaces [j] = mono_class_bind_generic_parameters (
2274 generic_ienumerator_class, 1, args, FALSE);
2275 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
2285 find_array_interface (MonoClass *klass, const char *name)
2288 for (i = 0; i < klass->interface_count; ++i) {
2289 if (strcmp (klass->interfaces [i]->name, name) == 0)
2296 * LOCKING: this is supposed to be called with the loader lock held.
2299 setup_interface_offsets (MonoClass *class, int cur_slot)
2303 MonoClass **interfaces_full;
2304 int *interface_offsets_full;
2306 int interface_offsets_count;
2307 MonoClass **array_interfaces;
2308 int num_array_interfaces;
2309 int is_enumerator = FALSE;
2312 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
2313 * implicit interfaces have the property that they are assigned the same slot in the
2314 * vtables for compatible interfaces
2316 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
2318 /* compute maximum number of slots and maximum interface id */
2320 for (k = class; k ; k = k->parent) {
2321 for (i = 0; i < k->interface_count; i++) {
2322 ic = k->interfaces [i];
2325 mono_class_init (ic);
2327 if (max_iid < ic->interface_id)
2328 max_iid = ic->interface_id;
2330 ifaces = mono_class_get_implemented_interfaces (k);
2332 for (i = 0; i < ifaces->len; ++i) {
2333 ic = g_ptr_array_index (ifaces, i);
2334 if (max_iid < ic->interface_id)
2335 max_iid = ic->interface_id;
2337 g_ptr_array_free (ifaces, TRUE);
2340 for (i = 0; i < num_array_interfaces; ++i) {
2341 ic = array_interfaces [i];
2342 mono_class_init (ic);
2343 if (max_iid < ic->interface_id)
2344 max_iid = ic->interface_id;
2347 if (MONO_CLASS_IS_INTERFACE (class)) {
2348 if (max_iid < class->interface_id)
2349 max_iid = class->interface_id;
2351 class->max_interface_id = max_iid;
2352 /* compute vtable offset for interfaces */
2353 interfaces_full = g_malloc (sizeof (MonoClass*) * (max_iid + 1));
2354 interface_offsets_full = g_malloc (sizeof (int) * (max_iid + 1));
2356 for (i = 0; i <= max_iid; i++) {
2357 interfaces_full [i] = NULL;
2358 interface_offsets_full [i] = -1;
2361 ifaces = mono_class_get_implemented_interfaces (class);
2363 for (i = 0; i < ifaces->len; ++i) {
2364 ic = g_ptr_array_index (ifaces, i);
2365 interfaces_full [ic->interface_id] = ic;
2366 interface_offsets_full [ic->interface_id] = cur_slot;
2367 cur_slot += ic->method.count;
2369 g_ptr_array_free (ifaces, TRUE);
2372 for (k = class->parent; k ; k = k->parent) {
2373 ifaces = mono_class_get_implemented_interfaces (k);
2375 for (i = 0; i < ifaces->len; ++i) {
2376 ic = g_ptr_array_index (ifaces, i);
2378 if (interface_offsets_full [ic->interface_id] == -1) {
2379 int io = mono_class_interface_offset (k, ic);
2383 interfaces_full [ic->interface_id] = ic;
2384 interface_offsets_full [ic->interface_id] = io;
2387 g_ptr_array_free (ifaces, TRUE);
2391 if (MONO_CLASS_IS_INTERFACE (class)) {
2392 interfaces_full [class->interface_id] = class;
2393 interface_offsets_full [class->interface_id] = cur_slot;
2396 if (num_array_interfaces) {
2397 if (is_enumerator) {
2398 int ienumerator_offset;
2399 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
2400 ienumerator_offset = interface_offsets_full [class->interfaces [ienumerator_idx]->interface_id];
2401 for (i = 0; i < num_array_interfaces; ++i) {
2402 ic = array_interfaces [i];
2403 interfaces_full [ic->interface_id] = ic;
2404 if (strcmp (ic->name, "IEnumerator`1") == 0)
2405 interface_offsets_full [ic->interface_id] = ienumerator_offset;
2407 g_assert_not_reached ();
2408 /*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);*/
2411 int ilist_offset, icollection_offset, ienumerable_offset;
2412 int ilist_iface_idx = find_array_interface (class, "IList`1");
2413 int icollection_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "ICollection`1");
2414 int ienumerable_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "IEnumerable`1");
2415 ilist_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interface_id];
2416 icollection_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [icollection_iface_idx]->interface_id];
2417 ienumerable_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [ienumerable_iface_idx]->interface_id];
2418 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
2419 for (i = 0; i < num_array_interfaces; ++i) {
2420 ic = array_interfaces [i];
2421 interfaces_full [ic->interface_id] = ic;
2422 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
2423 interface_offsets_full [ic->interface_id] = ilist_offset;
2424 else if (strcmp (ic->name, "ICollection`1") == 0)
2425 interface_offsets_full [ic->interface_id] = icollection_offset;
2426 else if (strcmp (ic->name, "IEnumerable`1") == 0)
2427 interface_offsets_full [ic->interface_id] = ienumerable_offset;
2429 g_assert_not_reached ();
2430 /*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);*/
2435 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2436 if (interface_offsets_full [i] != -1) {
2437 interface_offsets_count ++;
2442 * We might get called twice: once from mono_class_init () then once from
2443 * mono_class_setup_vtable ().
2445 if (class->interfaces_packed) {
2446 g_assert (class->interface_offsets_count == interface_offsets_count);
2448 class->interface_offsets_count = interface_offsets_count;
2449 class->interfaces_packed = mono_image_alloc (class->image, sizeof (MonoClass*) * interface_offsets_count);
2450 class->interface_offsets_packed = mono_image_alloc (class->image, sizeof (guint16) * interface_offsets_count);
2451 class->interface_bitmap = mono_image_alloc0 (class->image, (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0));
2452 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2453 if (interface_offsets_full [i] != -1) {
2454 class->interface_bitmap [i >> 3] |= (1 << (i & 7));
2455 class->interfaces_packed [interface_offsets_count] = interfaces_full [i];
2456 class->interface_offsets_packed [interface_offsets_count] = interface_offsets_full [i];
2457 /*if (num_array_interfaces)
2458 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]);*/
2459 interface_offsets_count ++;
2464 g_free (interfaces_full);
2465 g_free (interface_offsets_full);
2466 g_free (array_interfaces);
2468 //printf ("JUST DONE: ");
2469 //print_implemented_interfaces (class);
2475 * Setup interface offsets for interfaces. Used by Ref.Emit.
2478 mono_class_setup_interface_offsets (MonoClass *class)
2480 mono_loader_lock ();
2482 setup_interface_offsets (class, 0);
2484 mono_loader_unlock ();
2488 * mono_class_setup_vtable:
2490 * Creates the generic vtable of CLASS.
2491 * Initializes the following fields in MonoClass:
2494 * Plus all the fields initialized by setup_interface_offsets ().
2495 * If there is an error during vtable construction, class->exception_type is set.
2497 * LOCKING: Acquires the loader lock.
2500 mono_class_setup_vtable (MonoClass *class)
2502 MonoMethod **overrides;
2503 MonoGenericContext *context;
2512 if (mono_debug_using_mono_debugger ())
2513 /* The debugger currently depends on this */
2514 mono_class_setup_methods (class);
2516 if (MONO_CLASS_IS_INTERFACE (class)) {
2517 /* This sets method->slot for all methods if this is an interface */
2518 mono_class_setup_methods (class);
2522 mono_loader_lock ();
2524 if (class->vtable) {
2525 mono_loader_unlock ();
2529 mono_stats.generic_vtable_count ++;
2531 if (class->generic_class) {
2532 context = mono_class_get_context (class);
2533 type_token = class->generic_class->container_class->type_token;
2535 context = (MonoGenericContext *) class->generic_container;
2536 type_token = class->type_token;
2539 if (class->image->dynamic) {
2540 if (class->generic_class) {
2541 MonoClass *gklass = class->generic_class->container_class;
2543 mono_reflection_get_dynamic_overrides (gklass, &overrides, &onum);
2544 for (i = 0; i < onum; ++i) {
2545 MonoMethod *override = overrides [(i * 2) + 1];
2546 MonoMethod *inflated = NULL;
2549 for (j = 0; j < class->method.count; ++j) {
2550 if (gklass->methods [j] == override) {
2551 inflated = class->methods [j];
2555 g_assert (inflated);
2557 overrides [(i * 2) + 1] = inflated;
2560 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
2563 /* The following call fails if there are missing methods in the type */
2564 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
2568 mono_class_setup_vtable_general (class, overrides, onum);
2572 mono_loader_unlock ();
2578 check_core_clr_override_method (MonoClass *class, MonoMethod *override, MonoMethod *base)
2580 MonoSecurityCoreCLRLevel override_level = mono_security_core_clr_method_level (override, FALSE);
2581 MonoSecurityCoreCLRLevel base_level = mono_security_core_clr_method_level (base, FALSE);
2583 if (override_level != base_level && base_level == MONO_SECURITY_CORE_CLR_CRITICAL)
2584 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2588 #define DEBUG_INTERFACE_VTABLE_CODE 0
2589 #define TRACE_INTERFACE_VTABLE_CODE 0
2591 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2592 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
2596 #define DEBUG_INTERFACE_VTABLE(stmt)
2599 #if TRACE_INTERFACE_VTABLE_CODE
2600 #define TRACE_INTERFACE_VTABLE(stmt) do {\
2604 #define TRACE_INTERFACE_VTABLE(stmt)
2608 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2610 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
2614 GString *res = g_string_new ("");
2616 g_string_append_c (res, '(');
2617 for (i = 0; i < sig->param_count; ++i) {
2619 g_string_append_c (res, ',');
2620 mono_type_get_desc (res, sig->params [i], include_namespace);
2622 g_string_append (res, ")=>");
2623 if (sig->ret != NULL) {
2624 mono_type_get_desc (res, sig->ret, include_namespace);
2626 g_string_append (res, "NULL");
2629 g_string_free (res, FALSE);
2633 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
2634 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
2635 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
2636 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
2644 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) {
2645 if (strcmp (im->name, cm->name) == 0) {
2646 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
2647 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
2650 if (! slot_is_empty) {
2651 if (require_newslot) {
2652 if (! interface_is_explicitly_implemented_by_class) {
2653 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
2656 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2657 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
2661 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
2664 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2665 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
2666 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2667 TRACE_INTERFACE_VTABLE (printf ("]"));
2670 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
2671 /* CAS - SecurityAction.InheritanceDemand on interface */
2672 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2673 mono_secman_inheritancedemand_method (cm, im);
2676 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2677 check_core_clr_override_method (class, cm, im);
2678 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
2681 MonoClass *ic = im->klass;
2682 const char *ic_name_space = ic->name_space;
2683 const char *ic_name = ic->name;
2686 if (! require_newslot) {
2687 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
2690 if (cm->klass->rank == 0) {
2691 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
2694 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2695 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
2696 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2697 TRACE_INTERFACE_VTABLE (printf ("]"));
2700 if (mono_class_get_image (ic) != mono_defaults.corlib) {
2701 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
2704 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
2705 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
2708 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
2709 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
2713 subname = strstr (cm->name, ic_name_space);
2714 if (subname != cm->name) {
2715 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
2718 subname += strlen (ic_name_space);
2719 if (subname [0] != '.') {
2720 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
2724 if (strstr (subname, ic_name) != subname) {
2725 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
2728 subname += strlen (ic_name);
2729 if (subname [0] != '.') {
2730 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
2734 if (strcmp (subname, im->name) != 0) {
2735 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
2739 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
2740 /* CAS - SecurityAction.InheritanceDemand on interface */
2741 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2742 mono_secman_inheritancedemand_method (cm, im);
2745 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2746 check_core_clr_override_method (class, cm, im);
2748 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
2753 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2755 foreach_override (gpointer key, gpointer value, gpointer user_data) {
2756 MonoMethod *method = key;
2757 MonoMethod *override = value;
2758 MonoClass *method_class = mono_method_get_class (method);
2759 MonoClass *override_class = mono_method_get_class (override);
2761 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
2762 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
2763 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
2766 print_overrides (GHashTable *override_map, const char *message) {
2768 printf ("Override map \"%s\" START:\n", message);
2769 g_hash_table_foreach (override_map, foreach_override, NULL);
2770 printf ("Override map \"%s\" END.\n", message);
2772 printf ("Override map \"%s\" EMPTY.\n", message);
2776 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
2777 char *full_name = mono_type_full_name (&class->byval_arg);
2781 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
2783 if (print_interfaces) {
2784 print_implemented_interfaces (class);
2785 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
2788 if (class->parent) {
2789 parent_size = class->parent->vtable_size;
2793 for (i = 0; i < size; ++i) {
2794 MonoMethod *cm = vtable [i];
2796 char *cm_name = mono_method_full_name (cm, TRUE);
2797 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
2798 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
2808 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
2810 char *method_signature;
2812 for (index = 0; index < onum; ++index) {
2813 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
2814 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
2816 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
2817 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
2818 mono_type_get_name (&ic->byval_arg), im->name, method_signature, class->name_space, class->name);
2819 g_free (method_signature);
2820 mono_class_setup_methods (class);
2821 for (index = 0; index < class->method.count; ++index) {
2822 MonoMethod *cm = class->methods [index];
2823 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
2825 printf ("METHOD %s(%s)\n", cm->name, method_signature);
2826 g_free (method_signature);
2831 * LOCKING: this is supposed to be called with the loader lock held.
2834 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
2837 MonoMethod **vtable;
2838 int i, max_vtsize = 0, max_iid, cur_slot = 0;
2839 GPtrArray *ifaces = NULL;
2840 GHashTable *override_map = NULL;
2841 gboolean security_enabled = mono_is_security_manager_active ();
2843 gpointer class_iter;
2844 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
2845 int first_non_interface_slot;
2851 ifaces = mono_class_get_implemented_interfaces (class);
2853 for (i = 0; i < ifaces->len; i++) {
2854 MonoClass *ic = g_ptr_array_index (ifaces, i);
2855 max_vtsize += ic->method.count;
2857 g_ptr_array_free (ifaces, TRUE);
2861 if (class->parent) {
2862 mono_class_init (class->parent);
2863 mono_class_setup_vtable (class->parent);
2864 max_vtsize += class->parent->vtable_size;
2865 cur_slot = class->parent->vtable_size;
2868 max_vtsize += class->method.count;
2870 vtable = alloca (sizeof (gpointer) * max_vtsize);
2871 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
2873 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
2875 cur_slot = setup_interface_offsets (class, cur_slot);
2876 max_iid = class->max_interface_id;
2877 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
2879 /* Optimized version for generic instances */
2880 if (class->generic_class) {
2881 MonoClass *gklass = class->generic_class->container_class;
2882 gboolean usable = TRUE;
2884 mono_class_setup_vtable (gklass);
2885 for (i = 0; i < gklass->vtable_size; ++i)
2886 if (gklass->vtable [i] && gklass->vtable [i]->wrapper_type == MONO_WRAPPER_STATIC_RGCTX_INVOKE)
2890 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * gklass->vtable_size);
2891 class->vtable_size = gklass->vtable_size;
2892 for (i = 0; i < gklass->vtable_size; ++i)
2893 if (gklass->vtable [i])
2894 tmp [i] = mono_class_inflate_generic_method_full (gklass->vtable [i], class, mono_class_get_context (class));
2895 mono_memory_barrier ();
2896 class->vtable = tmp;
2902 if (class->parent && class->parent->vtable_size) {
2903 MonoClass *parent = class->parent;
2906 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
2908 // Also inherit parent interface vtables, just as a starting point.
2909 // This is needed otherwise bug-77127.exe fails when the property methods
2910 // have different names in the iterface and the class, because for child
2911 // classes the ".override" information is not used anymore.
2912 for (i = 0; i < parent->interface_offsets_count; i++) {
2913 MonoClass *parent_interface = parent->interfaces_packed [i];
2914 int interface_offset = mono_class_interface_offset (class, parent_interface);
2916 if (interface_offset >= parent->vtable_size) {
2917 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
2920 mono_class_setup_methods (parent_interface);
2921 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
2922 for (j = 0; j < parent_interface->method.count; j++) {
2923 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
2924 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
2925 parent_interface_offset + j, parent_interface_offset, j,
2926 interface_offset + j, interface_offset, j));
2933 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
2934 /* override interface methods */
2935 for (i = 0; i < onum; i++) {
2936 MonoMethod *decl = overrides [i*2];
2937 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
2939 dslot = mono_method_get_vtable_slot (decl) + mono_class_interface_offset (class, decl->klass);
2940 vtable [dslot] = overrides [i*2 + 1];
2941 vtable [dslot]->slot = dslot;
2943 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
2945 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
2947 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2948 check_core_clr_override_method (class, vtable [dslot], decl);
2951 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
2952 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
2954 // Loop on all implemented interfaces...
2955 for (i = 0; i < class->interface_offsets_count; i++) {
2956 MonoClass *parent = class->parent;
2958 gboolean interface_is_explicitly_implemented_by_class;
2961 ic = class->interfaces_packed [i];
2962 ic_offset = mono_class_interface_offset (class, ic);
2964 mono_class_setup_methods (ic);
2966 // Check if this interface is explicitly implemented (instead of just inherited)
2967 if (parent != NULL) {
2968 int implemented_interfaces_index;
2969 interface_is_explicitly_implemented_by_class = FALSE;
2970 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
2971 if (ic == class->interfaces [implemented_interfaces_index]) {
2972 interface_is_explicitly_implemented_by_class = TRUE;
2977 interface_is_explicitly_implemented_by_class = TRUE;
2980 // Loop on all interface methods...
2981 for (im_index = 0; im_index < ic->method.count; im_index++) {
2982 MonoMethod *im = ic->methods [im_index];
2983 int im_slot = ic_offset + im->slot;
2984 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
2986 if (im->flags & METHOD_ATTRIBUTE_STATIC)
2989 // If there is an explicit implementation, just use it right away,
2990 // otherwise look for a matching method
2991 if (override_im == NULL) {
2996 // First look for a suitable method among the class methods
2998 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
2999 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)));
3000 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
3001 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
3002 vtable [im_slot] = cm;
3003 /* Why do we need this? */
3008 TRACE_INTERFACE_VTABLE (printf ("\n"));
3011 // If the slot is still empty, look in all the inherited virtual methods...
3012 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
3013 MonoClass *parent = class->parent;
3014 // Reverse order, so that last added methods are preferred
3015 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
3016 MonoMethod *cm = parent->vtable [cm_index];
3018 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));
3019 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
3020 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
3021 vtable [im_slot] = cm;
3022 /* Why do we need this? */
3028 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
3032 g_assert (vtable [im_slot] == override_im);
3037 // If the class is not abstract, check that all its interface slots are full.
3038 // The check is done here and not directly at the end of the loop above because
3039 // it can happen (for injected generic array interfaces) that the same slot is
3040 // processed multiple times (those interfaces have overlapping slots), and it
3041 // will not always be the first pass the one that fills the slot.
3042 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3043 for (i = 0; i < class->interface_offsets_count; i++) {
3047 ic = class->interfaces_packed [i];
3048 ic_offset = mono_class_interface_offset (class, ic);
3050 for (im_index = 0; im_index < ic->method.count; im_index++) {
3051 MonoMethod *im = ic->methods [im_index];
3052 int im_slot = ic_offset + im->slot;
3054 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3057 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
3058 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
3059 if (vtable [im_slot] == NULL) {
3060 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
3061 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3063 g_hash_table_destroy (override_map);
3070 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
3072 while ((cm = mono_class_get_virtual_methods (class, &class_iter))) {
3074 * If the method is REUSE_SLOT, we must check in the
3075 * base class for a method to override.
3077 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3079 for (k = class->parent; k ; k = k->parent) {
3084 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
3085 MonoMethodSignature *cmsig, *m1sig;
3087 cmsig = mono_method_signature (cm);
3088 m1sig = mono_method_signature (m1);
3090 if (!cmsig || !m1sig) {
3091 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3095 if (!strcmp(cm->name, m1->name) &&
3096 mono_metadata_signature_equal (cmsig, m1sig)) {
3098 /* CAS - SecurityAction.InheritanceDemand */
3099 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3100 mono_secman_inheritancedemand_method (cm, m1);
3103 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3104 check_core_clr_override_method (class, cm, m1);
3106 slot = mono_method_get_vtable_slot (m1);
3107 g_assert (cm->slot < max_vtsize);
3109 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3110 g_hash_table_insert (override_map, m1, cm);
3122 cm->slot = cur_slot++;
3124 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
3125 vtable [cm->slot] = cm;
3128 /* override non interface methods */
3129 for (i = 0; i < onum; i++) {
3130 MonoMethod *decl = overrides [i*2];
3131 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
3132 g_assert (decl->slot != -1);
3133 vtable [decl->slot] = overrides [i*2 + 1];
3134 overrides [i * 2 + 1]->slot = decl->slot;
3136 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3137 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
3139 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3140 check_core_clr_override_method (class, vtable [decl->slot], decl);
3145 * If a method occupies more than one place in the vtable, and it is
3146 * overriden, then change the other occurances too.
3149 for (i = 0; i < max_vtsize; ++i)
3151 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
3156 g_hash_table_destroy (override_map);
3159 if (class->generic_class) {
3160 MonoClass *gklass = class->generic_class->container_class;
3162 mono_class_init (gklass);
3164 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
3166 /* Check that the vtable_size value computed in mono_class_init () is correct */
3167 if (class->vtable_size)
3168 g_assert (cur_slot == class->vtable_size);
3169 class->vtable_size = cur_slot;
3172 /* FIXME: only do this if the class is actually sharable */
3173 if (class->valuetype && (class->generic_class || class->generic_container) &&
3174 mono_class_generic_sharing_enabled (class)) {
3175 for (i = 0; i < max_vtsize; ++i) {
3176 if (vtable [i] && vtable [i]->wrapper_type == MONO_WRAPPER_NONE)
3177 vtable [i] = mono_marshal_get_static_rgctx_invoke (vtable [i]);
3181 /* Try to share the vtable with our parent. */
3182 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
3183 mono_memory_barrier ();
3184 class->vtable = class->parent->vtable;
3186 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * class->vtable_size);
3187 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
3188 mono_memory_barrier ();
3189 class->vtable = tmp;
3192 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
3193 if (mono_print_vtable) {
3196 print_implemented_interfaces (class);
3198 for (i = 0; i <= max_iid; i++)
3199 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
3202 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
3203 class->vtable_size, icount);
3205 for (i = 0; i < class->vtable_size; ++i) {
3210 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
3211 mono_method_full_name (cm, TRUE));
3217 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
3218 class->name, max_iid);
3220 for (i = 0; i < class->interface_count; i++) {
3221 ic = class->interfaces [i];
3222 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3223 mono_class_interface_offset (class, ic),
3224 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3227 for (k = class->parent; k ; k = k->parent) {
3228 for (i = 0; i < k->interface_count; i++) {
3229 ic = k->interfaces [i];
3230 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3231 mono_class_interface_offset (class, ic),
3232 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3240 * mono_method_get_vtable_slot:
3242 * Returns method->slot, computing it if neccesary.
3243 * LOCKING: Acquires the loader lock.
3246 mono_method_get_vtable_slot (MonoMethod *method)
3248 if (method->slot == -1) {
3249 mono_class_setup_vtable (method->klass);
3250 g_assert (method->slot != -1);
3252 return method->slot;
3256 * mono_method_get_vtable_index:
3259 * Returns the index into the runtime vtable to access the method or,
3260 * in the case of a virtual generic method, the virtual generic method
3264 mono_method_get_vtable_index (MonoMethod *method)
3266 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3267 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3268 if (imethod->declaring->is_generic)
3269 return mono_method_get_vtable_slot (imethod->declaring);
3271 return mono_method_get_vtable_slot (method);
3274 static MonoMethod *default_ghc = NULL;
3275 static MonoMethod *default_finalize = NULL;
3276 static int finalize_slot = -1;
3277 static int ghc_slot = -1;
3280 initialize_object_slots (MonoClass *class)
3285 if (class == mono_defaults.object_class) {
3286 mono_class_setup_vtable (class);
3287 for (i = 0; i < class->vtable_size; ++i) {
3288 MonoMethod *cm = class->vtable [i];
3290 if (!strcmp (cm->name, "GetHashCode"))
3292 else if (!strcmp (cm->name, "Finalize"))
3296 g_assert (ghc_slot > 0);
3297 default_ghc = class->vtable [ghc_slot];
3299 g_assert (finalize_slot > 0);
3300 default_finalize = class->vtable [finalize_slot];
3305 g_list_prepend_mempool (GList* l, MonoMemPool* mp, gpointer datum)
3307 GList* n = mono_mempool_alloc (mp, sizeof (GList));
3315 MonoMethod *array_method;
3317 } GenericArrayMethodInfo;
3319 static int generic_array_method_num = 0;
3320 static GenericArrayMethodInfo *generic_array_method_info = NULL;
3323 generic_array_methods (MonoClass *class)
3325 int i, count_generic = 0;
3326 GList *list = NULL, *tmp;
3327 if (generic_array_method_num)
3328 return generic_array_method_num;
3329 mono_class_setup_methods (class->parent);
3330 for (i = 0; i < class->parent->method.count; i++) {
3331 MonoMethod *m = class->parent->methods [i];
3332 if (!strncmp (m->name, "InternalArray__", 15)) {
3334 list = g_list_prepend (list, m);
3337 list = g_list_reverse (list);
3338 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
3340 for (tmp = list; tmp; tmp = tmp->next) {
3341 const char *mname, *iname;
3343 MonoMethod *m = tmp->data;
3344 generic_array_method_info [i].array_method = m;
3345 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
3346 iname = "System.Collections.Generic.ICollection`1.";
3347 mname = m->name + 27;
3348 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
3349 iname = "System.Collections.Generic.IEnumerable`1.";
3350 mname = m->name + 27;
3351 } else if (!strncmp (m->name, "InternalArray__", 15)) {
3352 iname = "System.Collections.Generic.IList`1.";
3353 mname = m->name + 15;
3355 g_assert_not_reached ();
3358 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
3359 strcpy (name, iname);
3360 strcpy (name + strlen (iname), mname);
3361 generic_array_method_info [i].name = name;
3364 /*g_print ("array generic methods: %d\n", count_generic);*/
3366 generic_array_method_num = count_generic;
3368 return generic_array_method_num;
3372 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
3374 MonoGenericContext tmp_context;
3377 tmp_context.class_inst = NULL;
3378 tmp_context.method_inst = iface->generic_class->context.class_inst;
3379 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
3381 for (i = 0; i < generic_array_method_num; i++) {
3382 MonoMethod *m = generic_array_method_info [i].array_method;
3383 MonoMethod *inflated;
3385 inflated = mono_class_inflate_generic_method (m, &tmp_context);
3386 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
3391 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
3393 int len = strlen (s1) + strlen (s2) + 2;
3394 char *s = mono_image_alloc (image, len);
3397 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
3398 g_assert (result == len - 1);
3404 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
3406 gpointer exception_data = NULL;
3408 switch (error->exception_type) {
3409 case MONO_EXCEPTION_TYPE_LOAD:
3410 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
3413 case MONO_EXCEPTION_MISSING_METHOD:
3414 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
3417 case MONO_EXCEPTION_MISSING_FIELD: {
3418 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
3419 const char *class_name;
3422 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
3424 class_name = error->klass->name;
3426 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
3429 g_free ((void*)class_name);
3433 case MONO_EXCEPTION_FILE_NOT_FOUND: {
3436 if (error->ref_only)
3437 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.";
3439 msg = "Could not load file or assembly '%s' or one of its dependencies.";
3441 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
3445 case MONO_EXCEPTION_BAD_IMAGE:
3446 exception_data = error->msg;
3450 g_assert_not_reached ();
3453 mono_class_set_failure (class, error->exception_type, exception_data);
3457 check_core_clr_inheritance (MonoClass *class)
3459 MonoSecurityCoreCLRLevel class_level, parent_level;
3460 MonoClass *parent = class->parent;
3465 class_level = mono_security_core_clr_class_level (class);
3466 parent_level = mono_security_core_clr_class_level (parent);
3468 if (class_level < parent_level)
3469 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3474 * @class: the class to initialize
3476 * Compute the instance_size, class_size and other infos that cannot be
3477 * computed at mono_class_get() time. Also compute vtable_size if possible.
3478 * Returns TRUE on success or FALSE if there was a problem in loading
3479 * the type (incorrect assemblies, missing assemblies, methods, etc).
3481 * LOCKING: Acquires the loader lock.
3484 mono_class_init (MonoClass *class)
3487 MonoCachedClassInfo cached_info;
3488 gboolean has_cached_info;
3489 int class_init_ok = TRUE;
3493 /* Double-checking locking pattern */
3495 return class->exception_type == MONO_EXCEPTION_NONE;
3497 /*g_print ("Init class %s\n", class->name);*/
3499 /* We do everything inside the lock to prevent races */
3500 mono_loader_lock ();
3502 if (class->inited) {
3503 mono_loader_unlock ();
3504 /* Somebody might have gotten in before us */
3505 return class->exception_type == MONO_EXCEPTION_NONE;
3508 if (class->init_pending) {
3509 mono_loader_unlock ();
3510 /* this indicates a cyclic dependency */
3511 g_error ("pending init %s.%s\n", class->name_space, class->name);
3514 class->init_pending = 1;
3516 /* CAS - SecurityAction.InheritanceDemand */
3517 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
3518 mono_secman_inheritancedemand_class (class, class->parent);
3521 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3522 check_core_clr_inheritance (class);
3524 mono_stats.initialized_class_count++;
3526 if (class->generic_class && !class->generic_class->is_dynamic) {
3527 MonoClass *gklass = class->generic_class->container_class;
3529 mono_stats.generic_class_count++;
3531 class->method = gklass->method;
3532 class->field = gklass->field;
3534 mono_class_init (gklass);
3535 // FIXME: Why is this needed ?
3536 mono_class_setup_methods (gklass);
3538 if (MONO_CLASS_IS_INTERFACE (class))
3539 class->interface_id = mono_get_unique_iid (class);
3541 g_assert (class->interface_count == gklass->interface_count);
3544 if (class->parent && !class->parent->inited)
3545 mono_class_init (class->parent);
3547 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
3549 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
3550 class->nested_classes_inited = TRUE;
3553 * Computes the size used by the fields, and their locations
3555 if (has_cached_info) {
3556 class->instance_size = cached_info.instance_size;
3557 class->sizes.class_size = cached_info.class_size;
3558 class->packing_size = cached_info.packing_size;
3559 class->min_align = cached_info.min_align;
3560 class->blittable = cached_info.blittable;
3561 class->has_references = cached_info.has_references;
3562 class->has_static_refs = cached_info.has_static_refs;
3563 class->no_special_static_fields = cached_info.no_special_static_fields;
3566 if (!class->size_inited){
3567 mono_class_setup_fields (class);
3568 if (class->exception_type || mono_loader_get_last_error ()){
3569 class_init_ok = FALSE;
3574 /* Initialize arrays */
3576 class->method.count = 3 + (class->rank > 1? 2: 1);
3578 if (class->interface_count) {
3579 int count_generic = generic_array_methods (class);
3580 class->method.count += class->interface_count * count_generic;
3584 mono_class_setup_supertypes (class);
3587 initialize_object_slots (class);
3590 * Initialize the rest of the data without creating a generic vtable if possible.
3591 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
3592 * also avoid computing a generic vtable.
3594 if (has_cached_info) {
3596 class->vtable_size = cached_info.vtable_size;
3597 class->has_finalize = cached_info.has_finalize;
3598 class->ghcimpl = cached_info.ghcimpl;
3599 class->has_cctor = cached_info.has_cctor;
3600 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
3601 static int szarray_vtable_size = 0;
3604 if (!szarray_vtable_size) {
3605 mono_class_setup_vtable (class);
3606 szarray_vtable_size = class->vtable_size;
3608 class->vtable_size = szarray_vtable_size;
3610 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
3611 MonoClass *gklass = class->generic_class->container_class;
3613 /* Generic instance case */
3614 class->ghcimpl = gklass->ghcimpl;
3615 class->has_finalize = gklass->has_finalize;
3616 class->has_cctor = gklass->has_cctor;
3618 mono_class_setup_vtable (gklass);
3619 if (gklass->exception_type)
3622 class->vtable_size = gklass->vtable_size;
3626 /* ghcimpl is not currently used
3628 if (class->parent) {
3629 MonoMethod *cmethod = class->vtable [ghc_slot];
3630 if (cmethod->is_inflated)
3631 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3632 if (cmethod == default_ghc) {
3638 /* Interfaces and valuetypes are not supposed to have finalizers */
3639 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
3640 MonoMethod *cmethod = NULL;
3642 if (class->parent && class->parent->has_finalize) {
3643 class->has_finalize = 1;
3645 if (class->type_token) {
3646 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
3647 } else if (class->parent) {
3648 /* FIXME: Optimize this */
3649 mono_class_setup_vtable (class);
3650 if (class->exception_type || mono_loader_get_last_error ())
3652 cmethod = class->vtable [finalize_slot];
3656 /* Check that this is really the finalizer method */
3657 mono_class_setup_vtable (class);
3658 if (class->exception_type || mono_loader_get_last_error ())
3661 class->has_finalize = 0;
3662 if (class->parent) {
3663 cmethod = class->vtable [finalize_slot];
3664 if (cmethod->is_inflated)
3665 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3666 if (cmethod != default_finalize) {
3667 class->has_finalize = 1;
3674 /* C# doesn't allow interfaces to have cctors */
3675 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
3676 MonoMethod *cmethod = NULL;
3678 if (class->type_token) {
3679 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
3680 /* The find_method function ignores the 'flags' argument */
3681 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
3682 class->has_cctor = 1;
3684 mono_class_setup_methods (class);
3686 for (i = 0; i < class->method.count; ++i) {
3687 MonoMethod *method = class->methods [i];
3688 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3689 (strcmp (".cctor", method->name) == 0)) {
3690 class->has_cctor = 1;
3698 if (!mono_setup_vtable_in_class_init) {
3700 * This is an embedding API break, since the caller might assume that
3701 * mono_class_init () constructs a generic vtable, so vtable construction errors
3702 * are visible right after the mono_class_init (), and not after
3703 * mono_class_vtable ().
3705 if (class->parent) {
3706 /* This will compute class->parent->vtable_size for some classes */
3707 mono_class_init (class->parent);
3708 if (class->parent->exception_type || mono_loader_get_last_error ())
3710 if (!class->parent->vtable_size) {
3711 /* FIXME: Get rid of this somehow */
3712 mono_class_setup_vtable (class->parent);
3713 if (class->parent->exception_type || mono_loader_get_last_error ())
3716 setup_interface_offsets (class, class->parent->vtable_size);
3718 setup_interface_offsets (class, 0);
3721 mono_class_setup_vtable (class);
3723 if (MONO_CLASS_IS_INTERFACE (class))
3724 setup_interface_offsets (class, 0);
3727 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
3728 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
3729 class_init_ok = FALSE;
3735 class_init_ok = FALSE;
3738 /* Because of the double-checking locking pattern */
3739 mono_memory_barrier ();
3741 class->init_pending = 0;
3743 if (mono_loader_get_last_error ()) {
3744 if (class->exception_type == MONO_EXCEPTION_NONE)
3745 set_failure_from_loader_error (class, mono_loader_get_last_error ());
3747 mono_loader_clear_error ();
3750 mono_loader_unlock ();
3752 if (mono_debugger_class_init_func)
3753 mono_debugger_class_init_func (class);
3755 return class_init_ok;
3759 is_corlib_image (MonoImage *image)
3761 /* FIXME: allow the dynamic case for our compilers and with full trust */
3763 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
3765 return image == mono_defaults.corlib;
3769 * LOCKING: this assumes the loader lock is held
3772 mono_class_setup_mono_type (MonoClass *class)
3774 const char *name = class->name;
3775 const char *nspace = class->name_space;
3776 gboolean is_corlib = is_corlib_image (class->image);
3778 class->this_arg.byref = 1;
3779 class->this_arg.data.klass = class;
3780 class->this_arg.type = MONO_TYPE_CLASS;
3781 class->byval_arg.data.klass = class;
3782 class->byval_arg.type = MONO_TYPE_CLASS;
3784 if (is_corlib && !strcmp (nspace, "System")) {
3785 if (!strcmp (name, "ValueType")) {
3787 * do not set the valuetype bit for System.ValueType.
3788 * class->valuetype = 1;
3790 class->blittable = TRUE;
3791 } else if (!strcmp (name, "Enum")) {
3793 * do not set the valuetype bit for System.Enum.
3794 * class->valuetype = 1;
3796 class->valuetype = 0;
3797 class->enumtype = 0;
3798 } else if (!strcmp (name, "Object")) {
3799 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
3800 } else if (!strcmp (name, "String")) {
3801 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
3802 } else if (!strcmp (name, "TypedReference")) {
3803 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
3807 if (class->valuetype) {
3808 int t = MONO_TYPE_VALUETYPE;
3810 if (is_corlib && !strcmp (nspace, "System")) {
3813 if (!strcmp (name, "Boolean")) {
3814 t = MONO_TYPE_BOOLEAN;
3815 } else if (!strcmp(name, "Byte")) {
3817 class->blittable = TRUE;
3821 if (!strcmp (name, "Char")) {
3826 if (!strcmp (name, "Double")) {
3828 class->blittable = TRUE;
3832 if (!strcmp (name, "Int32")) {
3834 class->blittable = TRUE;
3835 } else if (!strcmp(name, "Int16")) {
3837 class->blittable = TRUE;
3838 } else if (!strcmp(name, "Int64")) {
3840 class->blittable = TRUE;
3841 } else if (!strcmp(name, "IntPtr")) {
3843 class->blittable = TRUE;
3847 if (!strcmp (name, "Single")) {
3849 class->blittable = TRUE;
3850 } else if (!strcmp(name, "SByte")) {
3852 class->blittable = TRUE;
3856 if (!strcmp (name, "UInt32")) {
3858 class->blittable = TRUE;
3859 } else if (!strcmp(name, "UInt16")) {
3861 class->blittable = TRUE;
3862 } else if (!strcmp(name, "UInt64")) {
3864 class->blittable = TRUE;
3865 } else if (!strcmp(name, "UIntPtr")) {
3867 class->blittable = TRUE;
3871 if (!strcmp (name, "TypedReference")) {
3872 t = MONO_TYPE_TYPEDBYREF;
3873 class->blittable = TRUE;
3877 if (!strcmp (name, "Void")) {
3885 class->this_arg.type = class->byval_arg.type = t;
3888 if (MONO_CLASS_IS_INTERFACE (class))
3889 class->interface_id = mono_get_unique_iid (class);
3894 * LOCKING: this assumes the loader lock is held
3897 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
3899 gboolean system_namespace;
3900 gboolean is_corlib = is_corlib_image (class->image);
3902 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
3904 /* if root of the hierarchy */
3905 if (system_namespace && !strcmp (class->name, "Object")) {
3906 class->parent = NULL;
3907 class->instance_size = sizeof (MonoObject);
3910 if (!strcmp (class->name, "<Module>")) {
3911 class->parent = NULL;
3912 class->instance_size = 0;
3916 if (!MONO_CLASS_IS_INTERFACE (class)) {
3917 /* Imported COM Objects always derive from __ComObject. */
3918 if (MONO_CLASS_IS_IMPORT (class)) {
3919 mono_init_com_types ();
3920 if (parent == mono_defaults.object_class)
3921 parent = mono_defaults.com_object_class;
3924 /* set the parent to something useful and safe, but mark the type as broken */
3925 parent = mono_defaults.object_class;
3926 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3929 class->parent = parent;
3931 if (parent->generic_class && !parent->name) {
3933 * If the parent is a generic instance, we may get
3934 * called before it is fully initialized, especially
3935 * before it has its name.
3940 class->marshalbyref = parent->marshalbyref;
3941 class->contextbound = parent->contextbound;
3942 class->delegate = parent->delegate;
3943 if (MONO_CLASS_IS_IMPORT (class))
3944 class->is_com_object = 1;
3946 class->is_com_object = parent->is_com_object;
3948 if (system_namespace) {
3949 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
3950 class->marshalbyref = 1;
3952 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
3953 class->contextbound = 1;
3955 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
3956 class->delegate = 1;
3959 if (class->parent->enumtype || (is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
3960 (strcmp (class->parent->name_space, "System") == 0)))
3961 class->valuetype = 1;
3962 if (is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
3963 class->valuetype = class->enumtype = 1;
3965 /*class->enumtype = class->parent->enumtype; */
3966 mono_class_setup_supertypes (class);
3968 /* initialize com types if COM interfaces are present */
3969 if (MONO_CLASS_IS_IMPORT (class))
3970 mono_init_com_types ();
3971 class->parent = NULL;
3977 * mono_class_setup_supertypes:
3980 * Build the data structure needed to make fast type checks work.
3981 * This currently sets two fields in @class:
3982 * - idepth: distance between @class and System.Object in the type
3984 * - supertypes: array of classes: each element has a class in the hierarchy
3985 * starting from @class up to System.Object
3987 * LOCKING: this assumes the loader lock is held
3990 mono_class_setup_supertypes (MonoClass *class)
3994 if (class->supertypes)
3997 if (class->parent && !class->parent->supertypes)
3998 mono_class_setup_supertypes (class->parent);
4000 class->idepth = class->parent->idepth + 1;
4004 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
4005 class->supertypes = mono_image_alloc0 (class->image, sizeof (MonoClass *) * ms);
4007 if (class->parent) {
4008 class->supertypes [class->idepth - 1] = class;
4009 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
4011 class->supertypes [0] = class;
4016 * mono_class_create_from_typedef:
4017 * @image: image where the token is valid
4018 * @type_token: typedef token
4020 * Create the MonoClass* representing the specified type token.
4021 * @type_token must be a TypeDef token.
4024 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
4026 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
4027 MonoClass *class, *parent = NULL;
4028 guint32 cols [MONO_TYPEDEF_SIZE];
4029 guint32 cols_next [MONO_TYPEDEF_SIZE];
4030 guint tidx = mono_metadata_token_index (type_token);
4031 MonoGenericContext *context = NULL;
4032 const char *name, *nspace;
4034 MonoClass **interfaces;
4035 guint32 field_last, method_last;
4036 guint32 nesting_tokeen;
4038 mono_loader_lock ();
4040 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
4041 mono_loader_unlock ();
4045 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
4047 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
4049 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4050 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4052 class = mono_image_alloc0 (image, sizeof (MonoClass));
4055 class->name_space = nspace;
4057 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4059 class->image = image;
4060 class->type_token = type_token;
4061 class->flags = cols [MONO_TYPEDEF_FLAGS];
4063 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
4066 * Check whether we're a generic type definition.
4068 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
4069 if (class->generic_container) {
4070 class->generic_container->owner.klass = class;
4071 context = &class->generic_container->context;
4074 if (cols [MONO_TYPEDEF_EXTENDS]) {
4075 parent = mono_class_get_full (
4076 image, mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]), context);
4077 if (parent == NULL){
4078 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
4079 mono_loader_unlock ();
4080 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4085 /* do this early so it's available for interfaces in setup_mono_type () */
4086 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
4087 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
4089 mono_class_setup_parent (class, parent);
4091 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
4092 mono_class_setup_mono_type (class);
4094 if (!class->enumtype) {
4095 if (!mono_metadata_interfaces_from_typedef_full (
4096 image, type_token, &interfaces, &icount, context)){
4097 mono_loader_unlock ();
4098 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4102 class->interfaces = interfaces;
4103 class->interface_count = icount;
4106 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
4110 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
4114 class->cast_class = class->element_class = class;
4116 /*g_print ("Load class %s\n", name);*/
4119 * Compute the field and method lists
4121 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
4122 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
4124 if (tt->rows > tidx){
4125 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
4126 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
4127 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
4129 field_last = image->tables [MONO_TABLE_FIELD].rows;
4130 method_last = image->tables [MONO_TABLE_METHOD].rows;
4133 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
4134 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
4135 class->field.count = field_last - class->field.first;
4137 class->field.count = 0;
4139 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
4140 class->method.count = method_last - class->method.first;
4142 class->method.count = 0;
4144 /* reserve space to store vector pointer in arrays */
4145 if (!strcmp (nspace, "System") && !strcmp (name, "Array")) {
4146 class->instance_size += 2 * sizeof (gpointer);
4147 g_assert (class->field.count == 0);
4150 if (class->enumtype) {
4151 class->enum_basetype = mono_class_find_enum_basetype (class);
4152 if (!class->enum_basetype) {
4153 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4154 mono_loader_unlock ();
4157 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
4161 * If we're a generic type definition, load the constraints.
4162 * We must do this after the class has been constructed to make certain recursive scenarios
4165 if (class->generic_container)
4166 mono_metadata_load_generic_param_constraints (
4167 image, type_token, class->generic_container);
4169 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
4170 if (!strncmp (name, "Vector", 6))
4171 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");
4174 mono_loader_unlock ();
4176 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4181 /** is klass Nullable<T>? */
4183 mono_class_is_nullable (MonoClass *klass)
4185 return klass->generic_class != NULL &&
4186 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
4190 /** if klass is T? return T */
4192 mono_class_get_nullable_param (MonoClass *klass)
4194 g_assert (mono_class_is_nullable (klass));
4195 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4199 * Create the `MonoClass' for an instantiation of a generic type.
4200 * We only do this if we actually need it.
4203 mono_generic_class_get_class (MonoGenericClass *gclass)
4205 MonoClass *klass, *gklass;
4208 mono_loader_lock ();
4209 if (gclass->cached_class) {
4210 mono_loader_unlock ();
4211 return gclass->cached_class;
4214 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
4215 klass = gclass->cached_class;
4217 gklass = gclass->container_class;
4219 if (gklass->nested_in) {
4221 * FIXME: the nested type context should include everything the
4222 * nesting context should have, but it may also have additional
4223 * generic parameters...
4225 MonoType *inflated = mono_class_inflate_generic_type (
4226 &gklass->nested_in->byval_arg, mono_generic_class_get_context (gclass));
4227 klass->nested_in = mono_class_from_mono_type (inflated);
4228 mono_metadata_free_type (inflated);
4231 klass->name = gklass->name;
4232 klass->name_space = gklass->name_space;
4234 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4236 klass->image = gklass->image;
4237 klass->flags = gklass->flags;
4238 klass->type_token = gklass->type_token;
4239 klass->field.count = gklass->field.count;
4240 klass->property.count = gklass->property.count;
4242 klass->generic_class = gclass;
4244 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
4245 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
4246 klass->this_arg.byref = TRUE;
4247 klass->enumtype = gklass->enumtype;
4248 klass->valuetype = gklass->valuetype;
4250 klass->cast_class = klass->element_class = klass;
4252 if (mono_class_is_nullable (klass))
4253 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
4255 klass->interface_count = gklass->interface_count;
4256 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
4257 for (i = 0; i < klass->interface_count; i++) {
4258 MonoType *it = &gklass->interfaces [i]->byval_arg;
4259 MonoType *inflated = mono_class_inflate_generic_type (it, mono_generic_class_get_context (gclass));
4260 klass->interfaces [i] = mono_class_from_mono_type (inflated);
4261 mono_metadata_free_type (inflated);
4265 * We're not interested in the nested classes of a generic instance.
4266 * We use the generic type definition to look for nested classes.
4268 klass->nested_classes = NULL;
4270 if (gklass->parent) {
4271 MonoType *inflated = mono_class_inflate_generic_type (
4272 &gklass->parent->byval_arg, mono_generic_class_get_context (gclass));
4274 klass->parent = mono_class_from_mono_type (inflated);
4275 mono_metadata_free_type (inflated);
4279 mono_class_setup_parent (klass, klass->parent);
4281 if (klass->enumtype) {
4282 klass->enum_basetype = gklass->enum_basetype;
4283 klass->cast_class = gklass->cast_class;
4286 if (gclass->is_dynamic) {
4289 mono_class_setup_supertypes (klass);
4291 if (klass->enumtype) {
4293 * For enums, gklass->fields might not been set, but instance_size etc. is
4294 * already set in mono_reflection_create_internal_class (). For non-enums,
4295 * these will be computed normally in mono_class_layout_fields ().
4297 klass->instance_size = gklass->instance_size;
4298 klass->sizes.class_size = gklass->sizes.class_size;
4299 klass->size_inited = 1;
4303 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4305 mono_loader_unlock ();
4311 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
4313 MonoClass *klass, **ptr;
4316 mono_loader_lock ();
4318 if (param->pklass) {
4319 mono_loader_unlock ();
4320 return param->pklass;
4323 if (!image && param->owner) {
4325 MonoMethod *method = param->owner->owner.method;
4326 image = (method && method->klass) ? method->klass->image : NULL;
4328 MonoClass *klass = param->owner->owner.klass;
4329 // FIXME: 'klass' should not be null
4330 // But, monodis creates GenericContainers without associating a owner to it
4331 image = klass ? klass->image : NULL;
4336 image = mono_defaults.corlib;
4338 klass = param->pklass = mono_image_alloc0 (image, sizeof (MonoClass));
4341 klass->name = param->name;
4343 klass->name = mono_image_alloc0 (image, 16);
4344 sprintf ((char*)klass->name, is_mvar ? "!!%d" : "!%d", param->num);
4346 klass->name_space = "";
4347 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4349 for (count = 0, ptr = param->constraints; ptr && *ptr; ptr++, count++)
4353 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (param->constraints [0])) {
4354 klass->parent = param->constraints [0];
4356 } else if (param->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
4357 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
4359 klass->parent = mono_defaults.object_class;
4361 if (count - pos > 0) {
4362 klass->interface_count = count - pos;
4363 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
4364 for (i = pos; i < count; i++)
4365 klass->interfaces [i - pos] = param->constraints [i];
4369 image = mono_defaults.corlib;
4371 klass->image = image;
4373 klass->inited = TRUE;
4374 klass->cast_class = klass->element_class = klass;
4375 klass->enum_basetype = &klass->element_class->byval_arg;
4376 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
4378 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4379 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
4380 klass->this_arg.byref = TRUE;
4384 guint32 cols [MONO_GENERICPARAM_SIZE];
4385 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4388 if (is_mvar && param->owner->owner.method)
4389 i = mono_metadata_get_generic_param_row (image, param->owner->owner.method->token, &owner);
4390 else if (!is_mvar && param->owner->owner.klass)
4391 i = mono_metadata_get_generic_param_row (image, param->owner->owner.klass->type_token, &owner);
4394 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4396 if (cols [MONO_GENERICPARAM_NUMBER] == param->num) {
4397 klass->sizes.generic_param_token = i | MONO_TOKEN_GENERIC_PARAM;
4400 if (++i > tdef->rows)
4402 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4403 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
4407 mono_class_setup_supertypes (klass);
4409 mono_loader_unlock ();
4411 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4417 mono_ptr_class_get (MonoType *type)
4420 MonoClass *el_class;
4424 el_class = mono_class_from_mono_type (type);
4425 image = el_class->image;
4427 mono_loader_lock ();
4429 if (!image->ptr_cache)
4430 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4432 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
4433 mono_loader_unlock ();
4436 result = mono_image_alloc0 (image, sizeof (MonoClass));
4438 result->parent = NULL; /* no parent for PTR types */
4439 result->name_space = el_class->name_space;
4440 name = g_strdup_printf ("%s*", el_class->name);
4441 result->name = mono_image_strdup (image, name);
4444 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4446 result->image = el_class->image;
4447 result->inited = TRUE;
4448 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4449 /* Can pointers get boxed? */
4450 result->instance_size = sizeof (gpointer);
4451 result->cast_class = result->element_class = el_class;
4452 result->enum_basetype = &result->element_class->byval_arg;
4453 result->blittable = TRUE;
4455 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
4456 result->this_arg.data.type = result->byval_arg.data.type = result->enum_basetype;
4457 result->this_arg.byref = TRUE;
4459 mono_class_setup_supertypes (result);
4461 g_hash_table_insert (image->ptr_cache, el_class, result);
4463 mono_loader_unlock ();
4465 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4471 mono_fnptr_class_get (MonoMethodSignature *sig)
4474 static GHashTable *ptr_hash = NULL;
4476 /* FIXME: These should be allocate from a mempool as well, but which one ? */
4478 mono_loader_lock ();
4481 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4483 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
4484 mono_loader_unlock ();
4487 result = g_new0 (MonoClass, 1);
4489 result->parent = NULL; /* no parent for PTR types */
4490 result->name_space = "System";
4491 result->name = "MonoFNPtrFakeClass";
4493 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4495 result->image = mono_defaults.corlib; /* need to fix... */
4496 result->inited = TRUE;
4497 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
4498 /* Can pointers get boxed? */
4499 result->instance_size = sizeof (gpointer);
4500 result->cast_class = result->element_class = result;
4501 result->blittable = TRUE;
4503 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
4504 result->this_arg.data.method = result->byval_arg.data.method = sig;
4505 result->this_arg.byref = TRUE;
4506 result->enum_basetype = &result->element_class->byval_arg;
4507 result->blittable = TRUE;
4509 mono_class_setup_supertypes (result);
4511 g_hash_table_insert (ptr_hash, sig, result);
4513 mono_loader_unlock ();
4515 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4521 mono_class_from_mono_type (MonoType *type)
4523 switch (type->type) {
4524 case MONO_TYPE_OBJECT:
4525 return type->data.klass? type->data.klass: mono_defaults.object_class;
4526 case MONO_TYPE_VOID:
4527 return type->data.klass? type->data.klass: mono_defaults.void_class;
4528 case MONO_TYPE_BOOLEAN:
4529 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
4530 case MONO_TYPE_CHAR:
4531 return type->data.klass? type->data.klass: mono_defaults.char_class;
4533 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
4535 return type->data.klass? type->data.klass: mono_defaults.byte_class;
4537 return type->data.klass? type->data.klass: mono_defaults.int16_class;
4539 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
4541 return type->data.klass? type->data.klass: mono_defaults.int32_class;
4543 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
4545 return type->data.klass? type->data.klass: mono_defaults.int_class;
4547 return type->data.klass? type->data.klass: mono_defaults.uint_class;
4549 return type->data.klass? type->data.klass: mono_defaults.int64_class;
4551 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
4553 return type->data.klass? type->data.klass: mono_defaults.single_class;
4555 return type->data.klass? type->data.klass: mono_defaults.double_class;
4556 case MONO_TYPE_STRING:
4557 return type->data.klass? type->data.klass: mono_defaults.string_class;
4558 case MONO_TYPE_TYPEDBYREF:
4559 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
4560 case MONO_TYPE_ARRAY:
4561 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
4563 return mono_ptr_class_get (type->data.type);
4564 case MONO_TYPE_FNPTR:
4565 return mono_fnptr_class_get (type->data.method);
4566 case MONO_TYPE_SZARRAY:
4567 return mono_array_class_get (type->data.klass, 1);
4568 case MONO_TYPE_CLASS:
4569 case MONO_TYPE_VALUETYPE:
4570 return type->data.klass;
4571 case MONO_TYPE_GENERICINST:
4572 return mono_generic_class_get_class (type->data.generic_class);
4574 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
4575 case MONO_TYPE_MVAR:
4576 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
4578 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
4579 g_assert_not_reached ();
4586 * mono_type_retrieve_from_typespec
4587 * @image: context where the image is created
4588 * @type_spec: typespec token
4589 * @context: the generic context used to evaluate generic instantiations in
4592 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate)
4594 MonoType *t = mono_type_create_from_typespec (image, type_spec);
4597 if (context && (context->class_inst || context->method_inst)) {
4598 MonoType *inflated = inflate_generic_type (NULL, t, context);
4601 *did_inflate = TRUE;
4608 * mono_class_create_from_typespec
4609 * @image: context where the image is created
4610 * @type_spec: typespec token
4611 * @context: the generic context used to evaluate generic instantiations in
4614 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
4617 gboolean inflated = FALSE;
4618 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated);
4621 ret = mono_class_from_mono_type (t);
4623 mono_metadata_free_type (t);
4628 * mono_bounded_array_class_get:
4629 * @element_class: element class
4630 * @rank: the dimension of the array class
4631 * @bounded: whenever the array has non-zero bounds
4633 * Returns: a class object describing the array with element type @element_type and
4637 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
4641 MonoClass *parent = NULL;
4642 GSList *list, *rootlist;
4645 gboolean corlib_type = FALSE;
4647 g_assert (rank <= 255);
4650 /* bounded only matters for one-dimensional arrays */
4653 image = eclass->image;
4655 mono_loader_lock ();
4657 if (!image->array_cache)
4658 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4660 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
4661 for (; list; list = list->next) {
4663 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
4664 mono_loader_unlock ();
4670 /* for the building corlib use System.Array from it */
4671 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
4672 parent = mono_class_from_name (image, "System", "Array");
4675 parent = mono_defaults.array_class;
4676 if (!parent->inited)
4677 mono_class_init (parent);
4680 class = mono_image_alloc0 (image, sizeof (MonoClass));
4682 class->image = image;
4683 class->name_space = eclass->name_space;
4684 nsize = strlen (eclass->name);
4685 name = g_malloc (nsize + 2 + rank + 1);
4686 memcpy (name, eclass->name, nsize);
4689 memset (name + nsize + 1, ',', rank - 1);
4691 name [nsize + rank] = '*';
4692 name [nsize + rank + bounded] = ']';
4693 name [nsize + rank + bounded + 1] = 0;
4694 class->name = mono_image_strdup (image, name);
4697 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4699 class->type_token = 0;
4700 /* all arrays are marked serializable and sealed, bug #42779 */
4701 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
4702 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4703 class->parent = parent;
4704 class->instance_size = mono_class_instance_size (class->parent);
4706 if (eclass->enumtype && !eclass->enum_basetype) {
4707 if (!eclass->reflection_info || eclass->wastypebuilder) {
4708 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
4709 g_assert (eclass->reflection_info && !eclass->wastypebuilder);
4711 /* element_size -1 is ok as this is not an instantitable type*/
4712 class->sizes.element_size = -1;
4714 class->sizes.element_size = mono_class_array_element_size (eclass);
4716 mono_class_setup_supertypes (class);
4718 if (mono_defaults.generic_ilist_class && !bounded && rank == 1) {
4721 /* generic IList, ICollection, IEnumerable */
4722 class->interface_count = 1;
4723 class->interfaces = mono_image_alloc0 (image, sizeof (MonoClass*) * class->interface_count);
4725 args [0] = &eclass->byval_arg;
4726 class->interfaces [0] = mono_class_bind_generic_parameters (
4727 mono_defaults.generic_ilist_class, 1, args, FALSE);
4730 if (eclass->generic_class)
4731 mono_class_init (eclass);
4732 if (!eclass->size_inited)
4733 mono_class_setup_fields (eclass);
4734 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
4738 if (eclass->enumtype)
4739 class->cast_class = eclass->element_class;
4741 class->cast_class = eclass;
4743 class->element_class = eclass;
4745 if ((rank > 1) || bounded) {
4746 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
4747 class->byval_arg.type = MONO_TYPE_ARRAY;
4748 class->byval_arg.data.array = at;
4749 at->eklass = eclass;
4751 /* FIXME: complete.... */
4753 class->byval_arg.type = MONO_TYPE_SZARRAY;
4754 class->byval_arg.data.klass = eclass;
4756 class->this_arg = class->byval_arg;
4757 class->this_arg.byref = 1;
4762 class->generic_container = eclass->generic_container;
4764 list = g_slist_append (rootlist, class);
4765 g_hash_table_insert (image->array_cache, eclass, list);
4767 mono_loader_unlock ();
4769 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4775 * mono_array_class_get:
4776 * @element_class: element class
4777 * @rank: the dimension of the array class
4779 * Returns: a class object describing the array with element type @element_type and
4783 mono_array_class_get (MonoClass *eclass, guint32 rank)
4785 return mono_bounded_array_class_get (eclass, rank, FALSE);
4789 * mono_class_instance_size:
4792 * Returns: the size of an object instance
4795 mono_class_instance_size (MonoClass *klass)
4797 if (!klass->size_inited)
4798 mono_class_init (klass);
4800 return klass->instance_size;
4804 * mono_class_min_align:
4807 * Returns: minimm alignment requirements
4810 mono_class_min_align (MonoClass *klass)
4812 if (!klass->size_inited)
4813 mono_class_init (klass);
4815 return klass->min_align;
4819 * mono_class_value_size:
4822 * This function is used for value types, and return the
4823 * space and the alignment to store that kind of value object.
4825 * Returns: the size of a value of kind @klass
4828 mono_class_value_size (MonoClass *klass, guint32 *align)
4832 /* fixme: check disable, because we still have external revereces to
4833 * mscorlib and Dummy Objects
4835 /*g_assert (klass->valuetype);*/
4837 size = mono_class_instance_size (klass) - sizeof (MonoObject);
4840 *align = klass->min_align;
4846 * mono_class_data_size:
4849 * Returns: the size of the static class data
4852 mono_class_data_size (MonoClass *klass)
4855 mono_class_init (klass);
4857 /* in arrays, sizes.class_size is unioned with element_size
4858 * and arrays have no static fields
4862 return klass->sizes.class_size;
4866 * Auxiliary routine to mono_class_get_field
4868 * Takes a field index instead of a field token.
4870 static MonoClassField *
4871 mono_class_get_field_idx (MonoClass *class, int idx)
4873 mono_class_setup_fields_locking (class);
4876 if (class->image->uncompressed_metadata) {
4878 * class->field.first points to the FieldPtr table, while idx points into the
4879 * Field table, so we have to do a search.
4881 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
4884 for (i = 0; i < class->field.count; ++i)
4885 if (mono_field_get_name (&class->fields [i]) == name)
4886 return &class->fields [i];
4887 g_assert_not_reached ();
4889 if (class->field.count) {
4890 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
4891 return &class->fields [idx - class->field.first];
4895 class = class->parent;
4901 * mono_class_get_field:
4902 * @class: the class to lookup the field.
4903 * @field_token: the field token
4905 * Returns: A MonoClassField representing the type and offset of
4906 * the field, or a NULL value if the field does not belong to this
4910 mono_class_get_field (MonoClass *class, guint32 field_token)
4912 int idx = mono_metadata_token_index (field_token);
4914 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
4916 return mono_class_get_field_idx (class, idx - 1);
4920 * mono_class_get_field_from_name:
4921 * @klass: the class to lookup the field.
4922 * @name: the field name
4924 * Search the class @klass and it's parents for a field with the name @name.
4926 * Returns: the MonoClassField pointer of the named field or NULL
4929 mono_class_get_field_from_name (MonoClass *klass, const char *name)
4933 mono_class_setup_fields_locking (klass);
4935 for (i = 0; i < klass->field.count; ++i) {
4936 if (strcmp (name, mono_field_get_name (&klass->fields [i])) == 0)
4937 return &klass->fields [i];
4939 klass = klass->parent;
4945 * mono_class_get_field_token:
4946 * @field: the field we need the token of
4948 * Get the token of a field. Note that the tokesn is only valid for the image
4949 * the field was loaded from. Don't use this function for fields in dynamic types.
4951 * Returns: the token representing the field in the image it was loaded from.
4954 mono_class_get_field_token (MonoClassField *field)
4956 MonoClass *klass = field->parent;
4959 mono_class_setup_fields_locking (klass);
4961 for (i = 0; i < klass->field.count; ++i) {
4962 if (&klass->fields [i] == field) {
4963 int idx = klass->field.first + i + 1;
4965 if (klass->image->uncompressed_metadata)
4966 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
4967 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
4970 klass = klass->parent;
4973 g_assert_not_reached ();
4978 mono_field_get_index (MonoClassField *field)
4980 int index = field - field->parent->fields;
4982 g_assert (index >= 0 && index < field->parent->field.count);
4988 * mono_class_get_field_default_value:
4990 * Return the default value of the field as a pointer into the metadata blob.
4993 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
4996 guint32 constant_cols [MONO_CONSTANT_SIZE];
4998 MonoClass *klass = field->parent;
5000 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
5002 if (!klass->field_def_values) {
5003 mono_loader_lock ();
5004 if (!klass->field_def_values)
5005 klass->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
5006 mono_loader_unlock ();
5009 field_index = mono_field_get_index (field);
5011 if (!klass->field_def_values [field_index].data) {
5012 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
5014 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
5016 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
5017 klass->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
5018 klass->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
5021 *def_type = klass->field_def_values [field_index].def_type;
5022 return klass->field_def_values [field_index].data;
5026 mono_class_get_event_token (MonoEvent *event)
5028 MonoClass *klass = event->parent;
5032 for (i = 0; i < klass->event.count; ++i) {
5033 if (&klass->events [i] == event)
5034 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->event.first + i + 1);
5036 klass = klass->parent;
5039 g_assert_not_reached ();
5044 mono_class_get_property_from_name (MonoClass *klass, const char *name)
5048 gpointer iter = NULL;
5049 while ((p = mono_class_get_properties (klass, &iter))) {
5050 if (! strcmp (name, p->name))
5053 klass = klass->parent;
5059 mono_class_get_property_token (MonoProperty *prop)
5061 MonoClass *klass = prop->parent;
5065 gpointer iter = NULL;
5066 while ((p = mono_class_get_properties (klass, &iter))) {
5067 if (&klass->properties [i] == prop)
5068 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->property.first + i + 1);
5072 klass = klass->parent;
5075 g_assert_not_reached ();
5080 mono_class_name_from_token (MonoImage *image, guint32 type_token)
5082 const char *name, *nspace;
5084 return g_strdup_printf ("DynamicType 0x%08x", type_token);
5086 switch (type_token & 0xff000000){
5087 case MONO_TOKEN_TYPE_DEF: {
5088 guint32 cols [MONO_TYPEDEF_SIZE];
5089 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5090 guint tidx = mono_metadata_token_index (type_token);
5092 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5093 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5094 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5095 if (strlen (nspace) == 0)
5096 return g_strdup_printf ("%s", name);
5098 return g_strdup_printf ("%s.%s", nspace, name);
5101 case MONO_TOKEN_TYPE_REF: {
5102 guint32 cols [MONO_TYPEREF_SIZE];
5103 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5105 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5106 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
5107 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
5108 if (strlen (nspace) == 0)
5109 return g_strdup_printf ("%s", name);
5111 return g_strdup_printf ("%s.%s", nspace, name);
5114 case MONO_TOKEN_TYPE_SPEC:
5115 return g_strdup_printf ("Typespec 0x%08x", type_token);
5117 g_assert_not_reached ();
5124 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
5127 return g_strdup_printf ("DynamicAssembly %s", image->name);
5129 switch (type_token & 0xff000000){
5130 case MONO_TOKEN_TYPE_DEF:
5131 return mono_stringify_assembly_name (&image->assembly->aname);
5133 case MONO_TOKEN_TYPE_REF: {
5134 MonoAssemblyName aname;
5135 guint32 cols [MONO_TYPEREF_SIZE];
5136 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5139 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5141 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
5142 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
5143 case MONO_RESOLTION_SCOPE_MODULE:
5145 return g_strdup ("");
5146 case MONO_RESOLTION_SCOPE_MODULEREF:
5148 return g_strdup ("");
5149 case MONO_RESOLTION_SCOPE_TYPEREF:
5151 return g_strdup ("");
5152 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
5153 mono_assembly_get_assemblyref (image, idx - 1, &aname);
5154 return mono_stringify_assembly_name (&aname);
5156 g_assert_not_reached ();
5160 case MONO_TOKEN_TYPE_SPEC:
5162 return g_strdup ("");
5164 g_assert_not_reached ();
5171 * mono_class_get_full:
5172 * @image: the image where the class resides
5173 * @type_token: the token for the class
5174 * @context: the generic context used to evaluate generic instantiations in
5176 * Returns: the MonoClass that represents @type_token in @image
5179 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5181 MonoClass *class = NULL;
5183 if (image->dynamic) {
5184 int table = mono_metadata_token_table (type_token);
5186 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
5187 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
5190 return mono_lookup_dynamic_token (image, type_token, context);
5193 switch (type_token & 0xff000000){
5194 case MONO_TOKEN_TYPE_DEF:
5195 class = mono_class_create_from_typedef (image, type_token);
5197 case MONO_TOKEN_TYPE_REF:
5198 class = mono_class_from_typeref (image, type_token);
5200 case MONO_TOKEN_TYPE_SPEC:
5201 class = mono_class_create_from_typespec (image, type_token, context);
5204 g_warning ("unknown token type %x", type_token & 0xff000000);
5205 g_assert_not_reached ();
5209 char *name = mono_class_name_from_token (image, type_token);
5210 char *assembly = mono_assembly_name_from_token (image, type_token);
5211 mono_loader_set_error_type_load (name, assembly);
5219 * mono_type_get_full:
5220 * @image: the image where the type resides
5221 * @type_token: the token for the type
5222 * @context: the generic context used to evaluate generic instantiations in
5224 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
5226 * Returns: the MonoType that represents @type_token in @image
5229 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5231 MonoType *type = NULL;
5232 gboolean inflated = FALSE;
5234 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
5236 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
5238 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
5239 MonoClass *class = mono_class_get_full (image, type_token, context);
5240 return class ? mono_class_get_type (class) : NULL;
5243 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated);
5246 char *name = mono_class_name_from_token (image, type_token);
5247 char *assembly = mono_assembly_name_from_token (image, type_token);
5249 mono_metadata_free_type (type);
5250 mono_loader_set_error_type_load (name, assembly);
5254 MonoType *tmp = type;
5255 type = mono_class_get_type (mono_class_from_mono_type (type));
5256 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
5257 * A MonoClass::byval_arg of a generic type definion has type CLASS.
5258 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
5260 * The long term solution is to chaise this places and make then set MonoType::type correctly.
5262 if (type->type != tmp->type)
5265 mono_metadata_free_type (tmp);
5272 mono_class_get (MonoImage *image, guint32 type_token)
5274 return mono_class_get_full (image, type_token, NULL);
5278 * mono_image_init_name_cache:
5280 * Initializes the class name cache stored in image->name_cache.
5282 * LOCKING: Acquires the loader lock.
5285 mono_image_init_name_cache (MonoImage *image)
5287 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5288 guint32 cols [MONO_TYPEDEF_SIZE];
5291 guint32 i, visib, nspace_index;
5292 GHashTable *name_cache2, *nspace_table;
5294 mono_loader_lock ();
5296 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
5298 if (image->dynamic) {
5299 mono_loader_unlock ();
5303 /* Temporary hash table to avoid lookups in the nspace_table */
5304 name_cache2 = g_hash_table_new (NULL, NULL);
5306 for (i = 1; i <= t->rows; ++i) {
5307 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5308 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5310 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5311 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5313 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5315 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5316 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5318 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
5319 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5320 if (!nspace_table) {
5321 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5322 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5323 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5326 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
5329 /* Load type names from EXPORTEDTYPES table */
5331 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5332 guint32 cols [MONO_EXP_TYPE_SIZE];
5335 for (i = 0; i < t->rows; ++i) {
5336 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
5337 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
5338 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
5340 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
5341 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5342 if (!nspace_table) {
5343 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5344 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5345 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5348 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
5352 g_hash_table_destroy (name_cache2);
5354 mono_loader_unlock ();
5358 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
5359 const char *name, guint32 index)
5361 GHashTable *nspace_table;
5362 GHashTable *name_cache;
5364 mono_loader_lock ();
5366 if (!image->name_cache)
5367 mono_image_init_name_cache (image);
5369 name_cache = image->name_cache;
5370 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
5371 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5372 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
5374 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
5376 mono_loader_unlock ();
5385 find_nocase (gpointer key, gpointer value, gpointer user_data)
5387 char *name = (char*)key;
5388 FindUserData *data = (FindUserData*)user_data;
5390 if (!data->value && (g_strcasecmp (name, (char*)data->key) == 0))
5391 data->value = value;
5395 * mono_class_from_name_case:
5396 * @image: The MonoImage where the type is looked up in
5397 * @name_space: the type namespace
5398 * @name: the type short name.
5400 * Obtains a MonoClass with a given namespace and a given name which
5401 * is located in the given MonoImage. The namespace and name
5402 * lookups are case insensitive.
5405 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
5407 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5408 guint32 cols [MONO_TYPEDEF_SIZE];
5413 if (image->dynamic) {
5415 FindUserData user_data;
5417 mono_loader_lock ();
5419 if (!image->name_cache)
5420 mono_image_init_name_cache (image);
5422 user_data.key = name_space;
5423 user_data.value = NULL;
5424 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
5426 if (user_data.value) {
5427 GHashTable *nspace_table = (GHashTable*)user_data.value;
5429 user_data.key = name;
5430 user_data.value = NULL;
5432 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
5434 if (user_data.value)
5435 token = GPOINTER_TO_UINT (user_data.value);
5438 mono_loader_unlock ();
5441 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
5447 /* add a cache if needed */
5448 for (i = 1; i <= t->rows; ++i) {
5449 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5450 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5452 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5453 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5455 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5457 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5458 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5459 if (g_strcasecmp (n, name) == 0 && g_strcasecmp (nspace, name_space) == 0)
5460 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
5466 return_nested_in (MonoClass *class, char *nested)
5469 char *s = strchr (nested, '/');
5470 gpointer iter = NULL;
5477 while ((found = mono_class_get_nested_types (class, &iter))) {
5478 if (strcmp (found->name, nested) == 0) {
5480 return return_nested_in (found, s);
5488 search_modules (MonoImage *image, const char *name_space, const char *name)
5490 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
5491 MonoImage *file_image;
5496 * The EXPORTEDTYPES table only contains public types, so have to search the
5498 * Note: image->modules contains the contents of the MODULEREF table, while
5499 * the real module list is in the FILE table.
5501 for (i = 0; i < file_table->rows; i++) {
5502 guint32 cols [MONO_FILE_SIZE];
5503 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
5504 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
5507 file_image = mono_image_load_file_for_image (image, i + 1);
5509 class = mono_class_from_name (file_image, name_space, name);
5519 * mono_class_from_name:
5520 * @image: The MonoImage where the type is looked up in
5521 * @name_space: the type namespace
5522 * @name: the type short name.
5524 * Obtains a MonoClass with a given namespace and a given name which
5525 * is located in the given MonoImage.
5528 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
5530 GHashTable *nspace_table;
5531 MonoImage *loaded_image;
5538 if ((nested = strchr (name, '/'))) {
5539 int pos = nested - name;
5540 int len = strlen (name);
5543 memcpy (buf, name, len + 1);
5545 nested = buf + pos + 1;
5549 if (get_class_from_name) {
5550 gboolean res = get_class_from_name (image, name_space, name, &class);
5553 class = search_modules (image, name_space, name);
5555 return class ? return_nested_in (class, nested) : NULL;
5561 mono_loader_lock ();
5563 if (!image->name_cache)
5564 mono_image_init_name_cache (image);
5566 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
5569 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
5571 mono_loader_unlock ();
5573 if (!token && image->dynamic && image->modules) {
5574 /* Search modules as well */
5575 for (i = 0; i < image->module_count; ++i) {
5576 MonoImage *module = image->modules [i];
5578 class = mono_class_from_name (module, name_space, name);
5585 class = search_modules (image, name_space, name);
5593 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
5594 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5595 guint32 cols [MONO_EXP_TYPE_SIZE];
5598 idx = mono_metadata_token_index (token);
5600 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
5602 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
5603 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
5604 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
5607 class = mono_class_from_name (loaded_image, name_space, name);
5609 return return_nested_in (class, nested);
5611 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
5612 MonoAssembly **references = image->references;
5613 guint32 assembly_idx;
5615 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
5617 if (!references [assembly_idx - 1])
5618 mono_assembly_load_reference (image, assembly_idx - 1);
5619 g_assert (references == image->references);
5620 g_assert (references [assembly_idx - 1]);
5621 if (references [assembly_idx - 1] == (gpointer)-1)
5624 /* FIXME: Cycle detection */
5625 return mono_class_from_name (references [assembly_idx - 1]->image, name_space, name);
5627 g_error ("not yet implemented");
5631 token = MONO_TOKEN_TYPE_DEF | token;
5633 class = mono_class_get (image, token);
5635 return return_nested_in (class, nested);
5640 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
5641 gboolean check_interfaces)
5643 g_assert (klassc->idepth > 0);
5644 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
5645 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
5647 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
5650 for (i = 0; i < klass->interface_count; i ++) {
5651 MonoClass *ic = klass->interfaces [i];
5656 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
5661 * MS.NET thinks interfaces are a subclass of Object, so we think it as
5664 if (klassc == mono_defaults.object_class)
5671 mono_class_has_variant_generic_params (MonoClass *klass)
5674 MonoGenericContainer *container;
5676 if (!klass->generic_class)
5679 container = klass->generic_class->container_class->generic_container;
5681 for (i = 0; i < container->type_argc; ++i)
5682 if (container->type_params [i].flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
5689 * mono_class_is_assignable_from:
5690 * @klass: the class to be assigned to
5691 * @oklass: the source class
5693 * Return: true if an instance of object oklass can be assigned to an
5694 * instance of object @klass
5697 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
5700 mono_class_init (klass);
5702 if (!oklass->inited)
5703 mono_class_init (oklass);
5705 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
5706 return klass == oklass;
5708 if (MONO_CLASS_IS_INTERFACE (klass)) {
5709 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
5712 /* interface_offsets might not be set for dynamic classes */
5713 if (oklass->reflection_info && !oklass->interface_bitmap)
5715 * oklass might be a generic type parameter but they have
5716 * interface_offsets set.
5718 return mono_reflection_call_is_assignable_to (oklass, klass);
5719 if (!oklass->interface_bitmap)
5720 /* Happens with generic instances of not-yet created dynamic types */
5722 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
5725 if (mono_class_has_variant_generic_params (klass)) {
5726 if (oklass->generic_class) {
5728 gboolean match = FALSE;
5729 MonoClass *container_class1 = klass->generic_class->container_class;
5730 MonoClass *container_class2 = oklass->generic_class->container_class;
5733 * Check whenever the generic definition of oklass implements the
5734 * generic definition of klass. The IMPLEMENTS_INTERFACE stuff is not usable
5735 * here since the relevant tables are not set up.
5737 for (i = 0; i < container_class2->interface_offsets_count; ++i)
5738 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)))
5742 MonoGenericContainer *container;
5744 container = klass->generic_class->container_class->generic_container;
5747 for (i = 0; i < container->type_argc; ++i) {
5748 MonoClass *param1_class = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [i]);
5749 MonoClass *param2_class = mono_class_from_mono_type (oklass->generic_class->context.class_inst->type_argv [i]);
5751 if (param1_class->valuetype != param2_class->valuetype) {
5756 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
5757 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
5759 if (param1_class != param2_class) {
5760 if ((container->type_params [i].flags & MONO_GEN_PARAM_VARIANT) && mono_class_is_assignable_from (param1_class, param2_class))
5762 else if (((container->type_params [i].flags & MONO_GEN_PARAM_COVARIANT) && mono_class_is_assignable_from (param2_class, param1_class)))
5776 } else if (klass->rank) {
5777 MonoClass *eclass, *eoclass;
5779 if (oklass->rank != klass->rank)
5782 /* vectors vs. one dimensional arrays */
5783 if (oklass->byval_arg.type != klass->byval_arg.type)
5786 eclass = klass->cast_class;
5787 eoclass = oklass->cast_class;
5790 * a is b does not imply a[] is b[] when a is a valuetype, and
5791 * b is a reference type.
5794 if (eoclass->valuetype) {
5795 if ((eclass == mono_defaults.enum_class) ||
5796 (eclass == mono_defaults.enum_class->parent) ||
5797 (eclass == mono_defaults.object_class))
5801 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
5802 } else if (mono_class_is_nullable (klass)) {
5803 if (mono_class_is_nullable (oklass))
5804 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
5806 return mono_class_is_assignable_from (klass->cast_class, oklass);
5807 } else if (klass == mono_defaults.object_class)
5810 return mono_class_has_parent (oklass, klass);
5814 * mono_class_get_cctor:
5815 * @klass: A MonoClass pointer
5817 * Returns: the static constructor of @klass if it exists, NULL otherwise.
5820 mono_class_get_cctor (MonoClass *klass)
5822 MonoCachedClassInfo cached_info;
5824 if (!klass->has_cctor)
5827 if (mono_class_get_cached_class_info (klass, &cached_info))
5828 return mono_get_method (klass->image, cached_info.cctor_token, klass);
5830 if (klass->generic_class && !klass->methods)
5831 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
5833 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
5837 * mono_class_get_finalizer:
5838 * @klass: The MonoClass pointer
5840 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
5843 mono_class_get_finalizer (MonoClass *klass)
5845 MonoCachedClassInfo cached_info;
5848 mono_class_init (klass);
5849 if (!klass->has_finalize)
5852 if (mono_class_get_cached_class_info (klass, &cached_info))
5853 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
5855 mono_class_setup_vtable (klass);
5856 return klass->vtable [finalize_slot];
5861 * mono_class_needs_cctor_run:
5862 * @klass: the MonoClass pointer
5863 * @caller: a MonoMethod describing the caller
5865 * Determines whenever the class has a static constructor and whenever it
5866 * needs to be called when executing CALLER.
5869 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
5873 method = mono_class_get_cctor (klass);
5875 return (method == caller) ? FALSE : TRUE;
5881 * mono_class_array_element_size:
5884 * Returns: the number of bytes an element of type @klass
5885 * uses when stored into an array.
5888 mono_class_array_element_size (MonoClass *klass)
5890 MonoType *type = &klass->byval_arg;
5893 switch (type->type) {
5896 case MONO_TYPE_BOOLEAN:
5900 case MONO_TYPE_CHAR:
5909 case MONO_TYPE_CLASS:
5910 case MONO_TYPE_STRING:
5911 case MONO_TYPE_OBJECT:
5912 case MONO_TYPE_SZARRAY:
5913 case MONO_TYPE_ARRAY:
5915 case MONO_TYPE_MVAR:
5916 return sizeof (gpointer);
5921 case MONO_TYPE_VALUETYPE:
5922 if (type->data.klass->enumtype) {
5923 type = type->data.klass->enum_basetype;
5924 klass = klass->element_class;
5927 return mono_class_instance_size (klass) - sizeof (MonoObject);
5928 case MONO_TYPE_GENERICINST:
5929 type = &type->data.generic_class->container_class->byval_arg;
5932 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
5938 * mono_array_element_size:
5939 * @ac: pointer to a #MonoArrayClass
5941 * Returns: the size of single array element.
5944 mono_array_element_size (MonoClass *ac)
5946 g_assert (ac->rank);
5947 return ac->sizes.element_size;
5951 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
5952 MonoGenericContext *context)
5954 if (image->dynamic) {
5955 MonoClass *tmp_handle_class;
5956 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
5958 g_assert (tmp_handle_class);
5960 *handle_class = tmp_handle_class;
5962 if (tmp_handle_class == mono_defaults.typehandle_class)
5963 return &((MonoClass*)obj)->byval_arg;
5968 switch (token & 0xff000000) {
5969 case MONO_TOKEN_TYPE_DEF:
5970 case MONO_TOKEN_TYPE_REF:
5971 case MONO_TOKEN_TYPE_SPEC: {
5974 *handle_class = mono_defaults.typehandle_class;
5975 type = mono_type_get_full (image, token, context);
5978 mono_class_init (mono_class_from_mono_type (type));
5979 /* We return a MonoType* as handle */
5982 case MONO_TOKEN_FIELD_DEF: {
5984 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
5986 *handle_class = mono_defaults.fieldhandle_class;
5987 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
5990 mono_class_init (class);
5991 return mono_class_get_field (class, token);
5993 case MONO_TOKEN_METHOD_DEF:
5994 case MONO_TOKEN_METHOD_SPEC: {
5996 meth = mono_get_method_full (image, token, NULL, context);
5998 *handle_class = mono_defaults.methodhandle_class;
6001 case MONO_TOKEN_MEMBER_REF: {
6002 guint32 cols [MONO_MEMBERREF_SIZE];
6004 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
6005 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
6006 mono_metadata_decode_blob_size (sig, &sig);
6007 if (*sig == 0x6) { /* it's a field */
6009 MonoClassField *field;
6010 field = mono_field_from_token (image, token, &klass, context);
6012 *handle_class = mono_defaults.fieldhandle_class;
6016 meth = mono_get_method_full (image, token, NULL, context);
6018 *handle_class = mono_defaults.methodhandle_class;
6023 g_warning ("Unknown token 0x%08x in ldtoken", token);
6030 * This function might need to call runtime functions so it can't be part
6031 * of the metadata library.
6033 static MonoLookupDynamicToken lookup_dynamic = NULL;
6036 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
6038 lookup_dynamic = func;
6042 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
6044 MonoClass *handle_class;
6046 return lookup_dynamic (image, token, TRUE, &handle_class, context);
6050 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
6052 return lookup_dynamic (image, token, valid_token, handle_class, context);
6055 static MonoGetCachedClassInfo get_cached_class_info = NULL;
6058 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
6060 get_cached_class_info = func;
6064 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
6066 if (!get_cached_class_info)
6069 return get_cached_class_info (klass, res);
6073 mono_install_get_class_from_name (MonoGetClassFromName func)
6075 get_class_from_name = func;
6079 mono_class_get_image (MonoClass *klass)
6081 return klass->image;
6085 * mono_class_get_element_class:
6086 * @klass: the MonoClass to act on
6088 * Returns: the element class of an array or an enumeration.
6091 mono_class_get_element_class (MonoClass *klass)
6093 return klass->element_class;
6097 * mono_class_is_valuetype:
6098 * @klass: the MonoClass to act on
6100 * Returns: true if the MonoClass represents a ValueType.
6103 mono_class_is_valuetype (MonoClass *klass)
6105 return klass->valuetype;
6109 * mono_class_is_enum:
6110 * @klass: the MonoClass to act on
6112 * Returns: true if the MonoClass represents an enumeration.
6115 mono_class_is_enum (MonoClass *klass)
6117 return klass->enumtype;
6121 * mono_class_enum_basetype:
6122 * @klass: the MonoClass to act on
6124 * Returns: the underlying type representation for an enumeration.
6127 mono_class_enum_basetype (MonoClass *klass)
6129 return klass->enum_basetype;
6133 * mono_class_get_parent
6134 * @klass: the MonoClass to act on
6136 * Returns: the parent class for this class.
6139 mono_class_get_parent (MonoClass *klass)
6141 return klass->parent;
6145 * mono_class_get_nesting_type;
6146 * @klass: the MonoClass to act on
6148 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
6151 mono_class_get_nesting_type (MonoClass *klass)
6153 return klass->nested_in;
6157 * mono_class_get_rank:
6158 * @klass: the MonoClass to act on
6160 * Returns: the rank for the array (the number of dimensions).
6163 mono_class_get_rank (MonoClass *klass)
6169 * mono_class_get_flags:
6170 * @klass: the MonoClass to act on
6172 * The type flags from the TypeDef table from the metadata.
6173 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
6176 * Returns: the flags from the TypeDef table.
6179 mono_class_get_flags (MonoClass *klass)
6181 return klass->flags;
6185 * mono_class_get_name
6186 * @klass: the MonoClass to act on
6188 * Returns: the name of the class.
6191 mono_class_get_name (MonoClass *klass)
6197 * mono_class_get_namespace:
6198 * @klass: the MonoClass to act on
6200 * Returns: the namespace of the class.
6203 mono_class_get_namespace (MonoClass *klass)
6205 return klass->name_space;
6209 * mono_class_get_type:
6210 * @klass: the MonoClass to act on
6212 * This method returns the internal Type representation for the class.
6214 * Returns: the MonoType from the class.
6217 mono_class_get_type (MonoClass *klass)
6219 return &klass->byval_arg;
6223 * mono_class_get_type_token
6224 * @klass: the MonoClass to act on
6226 * This method returns type token for the class.
6228 * Returns: the type token for the class.
6231 mono_class_get_type_token (MonoClass *klass)
6233 return klass->type_token;
6237 * mono_class_get_byref_type:
6238 * @klass: the MonoClass to act on
6243 mono_class_get_byref_type (MonoClass *klass)
6245 return &klass->this_arg;
6249 * mono_class_num_fields:
6250 * @klass: the MonoClass to act on
6252 * Returns: the number of static and instance fields in the class.
6255 mono_class_num_fields (MonoClass *klass)
6257 return klass->field.count;
6261 * mono_class_num_methods:
6262 * @klass: the MonoClass to act on
6264 * Returns: the number of methods in the class.
6267 mono_class_num_methods (MonoClass *klass)
6269 return klass->method.count;
6273 * mono_class_num_properties
6274 * @klass: the MonoClass to act on
6276 * Returns: the number of properties in the class.
6279 mono_class_num_properties (MonoClass *klass)
6281 mono_class_setup_properties (klass);
6283 return klass->property.count;
6287 * mono_class_num_events:
6288 * @klass: the MonoClass to act on
6290 * Returns: the number of events in the class.
6293 mono_class_num_events (MonoClass *klass)
6295 mono_class_setup_events (klass);
6297 return klass->event.count;
6301 * mono_class_get_fields:
6302 * @klass: the MonoClass to act on
6304 * This routine is an iterator routine for retrieving the fields in a class.
6306 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6307 * iterate over all of the elements. When no more values are
6308 * available, the return value is NULL.
6310 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
6313 mono_class_get_fields (MonoClass* klass, gpointer *iter)
6315 MonoClassField* field;
6319 mono_class_setup_fields_locking (klass);
6320 /* start from the first */
6321 if (klass->field.count) {
6322 return *iter = &klass->fields [0];
6330 if (field < &klass->fields [klass->field.count]) {
6331 return *iter = field;
6337 * mono_class_get_methods
6338 * @klass: the MonoClass to act on
6340 * This routine is an iterator routine for retrieving the fields in a class.
6342 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6343 * iterate over all of the elements. When no more values are
6344 * available, the return value is NULL.
6346 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
6349 mono_class_get_methods (MonoClass* klass, gpointer *iter)
6351 MonoMethod** method;
6355 mono_class_init (klass);
6357 mono_class_setup_methods (klass);
6358 /* start from the first */
6359 if (klass->method.count) {
6360 *iter = &klass->methods [0];
6361 return klass->methods [0];
6369 if (method < &klass->methods [klass->method.count]) {
6377 * mono_class_get_virtual_methods:
6379 * Iterate over the virtual methods of KLASS.
6381 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
6384 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
6386 MonoMethod** method;
6389 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
6391 mono_class_setup_methods (klass);
6392 /* start from the first */
6393 method = &klass->methods [0];
6398 while (method < &klass->methods [klass->method.count]) {
6399 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
6403 if (method < &klass->methods [klass->method.count]) {
6410 /* Search directly in metadata to avoid calling setup_methods () */
6411 MonoMethod *res = NULL;
6417 start_index = GPOINTER_TO_UINT (*iter);
6420 for (i = start_index; i < klass->method.count; ++i) {
6421 guint32 cols [MONO_METHOD_SIZE];
6423 /* class->method.first points into the methodptr table */
6424 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6426 if (cols [MONO_METHOD_FLAGS] & METHOD_ATTRIBUTE_VIRTUAL)
6430 if (i < klass->method.count) {
6431 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6432 /* Add 1 here so the if (*iter) check fails */
6433 *iter = GUINT_TO_POINTER (i + 1);
6442 * mono_class_get_properties:
6443 * @klass: the MonoClass to act on
6445 * This routine is an iterator routine for retrieving the properties in a class.
6447 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6448 * iterate over all of the elements. When no more values are
6449 * available, the return value is NULL.
6451 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
6454 mono_class_get_properties (MonoClass* klass, gpointer *iter)
6456 MonoProperty* property;
6460 mono_class_init (klass);
6462 mono_class_setup_properties (klass);
6463 /* start from the first */
6464 if (klass->property.count) {
6465 return *iter = &klass->properties [0];
6473 if (property < &klass->properties [klass->property.count]) {
6474 return *iter = property;
6480 * mono_class_get_events:
6481 * @klass: the MonoClass to act on
6483 * This routine is an iterator routine for retrieving the properties in a class.
6485 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6486 * iterate over all of the elements. When no more values are
6487 * available, the return value is NULL.
6489 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
6492 mono_class_get_events (MonoClass* klass, gpointer *iter)
6498 mono_class_init (klass);
6500 mono_class_setup_events (klass);
6501 /* start from the first */
6502 if (klass->event.count) {
6503 return *iter = &klass->events [0];
6511 if (event < &klass->events [klass->event.count]) {
6512 return *iter = event;
6518 * mono_class_get_interfaces
6519 * @klass: the MonoClass to act on
6521 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
6523 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6524 * iterate over all of the elements. When no more values are
6525 * available, the return value is NULL.
6527 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6530 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
6536 mono_class_init (klass);
6538 /* start from the first */
6539 if (klass->interface_count) {
6540 *iter = &klass->interfaces [0];
6541 return klass->interfaces [0];
6549 if (iface < &klass->interfaces [klass->interface_count]) {
6557 * mono_class_get_nested_types
6558 * @klass: the MonoClass to act on
6560 * This routine is an iterator routine for retrieving the nested types of a class.
6561 * This works only if @klass is non-generic, or a generic type definition.
6563 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6564 * iterate over all of the elements. When no more values are
6565 * available, the return value is NULL.
6567 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6570 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
6578 mono_class_init (klass);
6579 if (!klass->nested_classes_inited) {
6580 if (!klass->type_token)
6581 klass->nested_classes_inited = TRUE;
6582 mono_loader_lock ();
6583 if (!klass->nested_classes_inited) {
6584 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
6587 guint32 cols [MONO_NESTED_CLASS_SIZE];
6588 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
6589 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
6590 klass->nested_classes = g_list_prepend_mempool (klass->nested_classes, klass->image->mempool, nclass);
6592 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
6595 mono_memory_barrier ();
6596 klass->nested_classes_inited = TRUE;
6597 mono_loader_unlock ();
6601 /* start from the first */
6602 if (klass->nested_classes) {
6603 *iter = klass->nested_classes;
6604 return klass->nested_classes->data;
6606 /* no nested types */
6620 * mono_field_get_name:
6621 * @field: the MonoClassField to act on
6623 * Returns: the name of the field.
6626 mono_field_get_name (MonoClassField *field)
6632 * mono_field_get_type:
6633 * @field: the MonoClassField to act on
6635 * Returns: MonoType of the field.
6638 mono_field_get_type (MonoClassField *field)
6644 * mono_field_get_type:
6645 * @field: the MonoClassField to act on
6647 * Returns: MonoClass where the field was defined.
6650 mono_field_get_parent (MonoClassField *field)
6652 return field->parent;
6656 * mono_field_get_flags;
6657 * @field: the MonoClassField to act on
6659 * The metadata flags for a field are encoded using the
6660 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6662 * Returns: the flags for the field.
6665 mono_field_get_flags (MonoClassField *field)
6667 return field->type->attrs;
6671 * mono_field_get_offset;
6672 * @field: the MonoClassField to act on
6674 * Returns: the field offset.
6677 mono_field_get_offset (MonoClassField *field)
6679 return field->offset;
6683 mono_field_get_rva (MonoClassField *field)
6687 MonoClass *klass = field->parent;
6689 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
6691 if (!klass->field_def_values) {
6692 mono_loader_lock ();
6693 if (!klass->field_def_values)
6694 klass->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
6695 mono_loader_unlock ();
6698 field_index = mono_field_get_index (field);
6700 if (!klass->field_def_values [field_index].data && !klass->image->dynamic) {
6701 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
6703 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
6704 klass->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
6707 return klass->field_def_values [field_index].data;
6711 * mono_field_get_data;
6712 * @field: the MonoClassField to act on
6714 * Returns: pointer to the metadata constant value or to the field
6715 * data if it has an RVA flag.
6718 mono_field_get_data (MonoClassField *field)
6720 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
6721 MonoTypeEnum def_type;
6723 return mono_class_get_field_default_value (field, &def_type);
6724 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
6725 return mono_field_get_rva (field);
6732 * mono_property_get_name:
6733 * @prop: the MonoProperty to act on
6735 * Returns: the name of the property
6738 mono_property_get_name (MonoProperty *prop)
6744 * mono_property_get_set_method
6745 * @prop: the MonoProperty to act on.
6747 * Returns: the setter method of the property (A MonoMethod)
6750 mono_property_get_set_method (MonoProperty *prop)
6756 * mono_property_get_get_method
6757 * @prop: the MonoProperty to act on.
6759 * Returns: the setter method of the property (A MonoMethod)
6762 mono_property_get_get_method (MonoProperty *prop)
6768 * mono_property_get_parent:
6769 * @prop: the MonoProperty to act on.
6771 * Returns: the MonoClass where the property was defined.
6774 mono_property_get_parent (MonoProperty *prop)
6776 return prop->parent;
6780 * mono_property_get_flags:
6781 * @prop: the MonoProperty to act on.
6783 * The metadata flags for a property are encoded using the
6784 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6786 * Returns: the flags for the property.
6789 mono_property_get_flags (MonoProperty *prop)
6795 * mono_event_get_name:
6796 * @event: the MonoEvent to act on
6798 * Returns: the name of the event.
6801 mono_event_get_name (MonoEvent *event)
6807 * mono_event_get_add_method:
6808 * @event: The MonoEvent to act on.
6810 * Returns: the @add' method for the event (a MonoMethod).
6813 mono_event_get_add_method (MonoEvent *event)
6819 * mono_event_get_remove_method:
6820 * @event: The MonoEvent to act on.
6822 * Returns: the @remove method for the event (a MonoMethod).
6825 mono_event_get_remove_method (MonoEvent *event)
6827 return event->remove;
6831 * mono_event_get_raise_method:
6832 * @event: The MonoEvent to act on.
6834 * Returns: the @raise method for the event (a MonoMethod).
6837 mono_event_get_raise_method (MonoEvent *event)
6839 return event->raise;
6843 * mono_event_get_parent:
6844 * @event: the MonoEvent to act on.
6846 * Returns: the MonoClass where the event is defined.
6849 mono_event_get_parent (MonoEvent *event)
6851 return event->parent;
6855 * mono_event_get_flags
6856 * @event: the MonoEvent to act on.
6858 * The metadata flags for an event are encoded using the
6859 * EVENT_* constants. See the tabledefs.h file for details.
6861 * Returns: the flags for the event.
6864 mono_event_get_flags (MonoEvent *event)
6866 return event->attrs;
6870 * mono_class_get_method_from_name:
6871 * @klass: where to look for the method
6872 * @name_space: name of the method
6873 * @param_count: number of parameters. -1 for any number.
6875 * Obtains a MonoMethod with a given name and number of parameters.
6876 * It only works if there are no multiple signatures for any given method name.
6879 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
6881 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
6885 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
6887 MonoMethod *res = NULL;
6890 /* Search directly in the metadata to avoid calling setup_methods () */
6891 for (i = 0; i < klass->method.count; ++i) {
6892 guint32 cols [MONO_METHOD_SIZE];
6895 /* class->method.first points into the methodptr table */
6896 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6898 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
6899 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6900 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
6911 * mono_class_get_method_from_name_flags:
6912 * @klass: where to look for the method
6913 * @name_space: name of the method
6914 * @param_count: number of parameters. -1 for any number.
6915 * @flags: flags which must be set in the method
6917 * Obtains a MonoMethod with a given name and number of parameters.
6918 * It only works if there are no multiple signatures for any given method name.
6921 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
6923 MonoMethod *res = NULL;
6926 mono_class_init (klass);
6928 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
6929 mono_class_setup_methods (klass);
6930 for (i = 0; i < klass->method.count; ++i) {
6931 MonoMethod *method = klass->methods [i];
6933 if (method->name[0] == name [0] &&
6934 !strcmp (name, method->name) &&
6935 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
6936 ((method->flags & flags) == flags)) {
6943 res = find_method_in_metadata (klass, name, param_count, flags);
6950 * mono_class_set_failure:
6951 * @klass: class in which the failure was detected
6952 * @ex_type: the kind of exception/error to be thrown (later)
6953 * @ex_data: exception data (specific to each type of exception/error)
6955 * Keep a detected failure informations in the class for later processing.
6956 * Note that only the first failure is kept.
6958 * LOCKING: Acquires the loader lock.
6961 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
6963 if (klass->exception_type)
6966 mono_loader_lock ();
6967 klass->exception_type = ex_type;
6969 mono_property_hash_insert (klass->image->property_hash, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
6970 mono_loader_unlock ();
6976 * mono_class_get_exception_data:
6978 * Return the exception_data property of KLASS.
6980 * LOCKING: Acquires the loader lock.
6983 mono_class_get_exception_data (MonoClass *klass)
6987 mono_loader_lock ();
6988 res = mono_property_hash_lookup (klass->image->property_hash, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
6989 mono_loader_unlock ();
6994 * mono_classes_init:
6996 * Initialize the resources used by this module.
6999 mono_classes_init (void)
7004 * mono_classes_cleanup:
7006 * Free the resources used by this module.
7009 mono_classes_cleanup (void)
7011 if (global_interface_bitset)
7012 mono_bitset_free (global_interface_bitset);
7016 * mono_class_get_exception_for_failure:
7017 * @klass: class in which the failure was detected
7019 * Return a constructed MonoException than the caller can then throw
7020 * using mono_raise_exception - or NULL if no failure is present (or
7021 * doesn't result in an exception).
7024 mono_class_get_exception_for_failure (MonoClass *klass)
7026 gpointer exception_data = mono_class_get_exception_data (klass);
7028 switch (klass->exception_type) {
7029 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
7030 MonoDomain *domain = mono_domain_get ();
7031 MonoSecurityManager* secman = mono_security_manager_get_methods ();
7032 MonoMethod *method = exception_data;
7033 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
7034 MonoObject *exc = NULL;
7038 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
7039 args [2] = mono_type_get_object (domain, &klass->byval_arg);
7040 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
7042 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
7043 return (MonoException*) exc;
7045 case MONO_EXCEPTION_TYPE_LOAD: {
7048 char *str = mono_type_get_full_name (klass);
7049 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
7050 name = mono_string_new (mono_domain_get (), str);
7052 ex = mono_get_exception_type_load (name, astr);
7056 case MONO_EXCEPTION_MISSING_METHOD: {
7057 char *class_name = exception_data;
7058 char *assembly_name = class_name + strlen (class_name) + 1;
7060 return mono_get_exception_missing_method (class_name, assembly_name);
7062 case MONO_EXCEPTION_MISSING_FIELD: {
7063 char *class_name = exception_data;
7064 char *member_name = class_name + strlen (class_name) + 1;
7066 return mono_get_exception_missing_field (class_name, member_name);
7068 case MONO_EXCEPTION_FILE_NOT_FOUND: {
7069 char *msg_format = exception_data;
7070 char *assembly_name = msg_format + strlen (msg_format) + 1;
7071 char *msg = g_strdup_printf (msg_format, assembly_name);
7074 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
7080 case MONO_EXCEPTION_BAD_IMAGE: {
7081 return mono_get_exception_bad_image_format (exception_data);
7084 MonoLoaderError *error;
7087 error = mono_loader_get_last_error ();
7089 ex = mono_loader_error_prepare_exception (error);
7093 /* TODO - handle other class related failures */
7100 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
7102 outer_klass = mono_class_get_generic_type_definition (outer_klass);
7103 inner_klass = mono_class_get_generic_type_definition (inner_klass);
7105 if (outer_klass == inner_klass)
7107 inner_klass = inner_klass->nested_in;
7108 } while (inner_klass);
7113 mono_class_get_generic_type_definition (MonoClass *klass)
7115 return klass->generic_class ? klass->generic_class->container_class : klass;
7119 * Check if @klass is a subtype of @parent ignoring generic instantiations.
7121 * Generic instantiations are ignored for all super types of @klass.
7123 * Visibility checks ignoring generic instantiations.
7126 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
7129 klass = mono_class_get_generic_type_definition (klass);
7130 parent = mono_class_get_generic_type_definition (parent);
7132 for (i = 0; i < klass->idepth; ++i) {
7133 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
7139 * Subtype can only access parent members with family protection if the site object
7140 * is subclass of Subtype. For example:
7141 * class A { protected int x; }
7143 * void valid_access () {
7147 * void invalid_access () {
7154 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
7156 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
7159 if (context_klass == NULL)
7161 /*if access_klass is not member_klass context_klass must be type compat*/
7162 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
7168 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
7171 if (accessing == accessed)
7173 if (!accessed || !accessing)
7175 mono_assembly_load_friends (accessed);
7176 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
7177 MonoAssemblyName *friend = tmp->data;
7178 /* Be conservative with checks */
7181 if (strcmp (accessing->aname.name, friend->name))
7183 if (friend->public_key_token [0]) {
7184 if (!accessing->aname.public_key_token [0])
7186 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
7195 * If klass is a generic type or if it is derived from a generic type, return the
7196 * MonoClass of the generic definition
7197 * Returns NULL if not found
7200 get_generic_definition_class (MonoClass *klass)
7203 if (klass->generic_class && klass->generic_class->container_class)
7204 return klass->generic_class->container_class;
7205 klass = klass->parent;
7211 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
7214 for (i = 0; i < ginst->type_argc; ++i) {
7215 MonoType *type = ginst->type_argv[i];
7216 if (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR)
7218 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
7225 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
7227 int access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7229 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
7232 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
7235 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
7238 switch (access_level) {
7239 case TYPE_ATTRIBUTE_NOT_PUBLIC:
7240 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7242 case TYPE_ATTRIBUTE_PUBLIC:
7245 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
7248 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
7249 return is_nesting_type (member_klass, access_klass);
7251 case TYPE_ATTRIBUTE_NESTED_FAMILY:
7252 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7254 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
7255 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7257 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
7258 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
7259 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7261 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
7262 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
7263 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7268 /* FIXME: check visibility of type, too */
7270 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
7272 MonoClass *member_generic_def;
7273 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
7274 access_klass->generic_container) &&
7275 (member_generic_def = get_generic_definition_class (member_klass))) {
7276 MonoClass *access_container;
7278 if (access_klass->generic_container)
7279 access_container = access_klass;
7281 access_container = access_klass->generic_class->container_class;
7283 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
7287 /* Partition I 8.5.3.2 */
7288 /* the access level values are the same for fields and methods */
7289 switch (access_level) {
7290 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
7291 /* same compilation unit */
7292 return access_klass->image == member_klass->image;
7293 case FIELD_ATTRIBUTE_PRIVATE:
7294 return access_klass == member_klass;
7295 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
7296 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
7297 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
7300 case FIELD_ATTRIBUTE_ASSEMBLY:
7301 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7302 case FIELD_ATTRIBUTE_FAMILY:
7303 if (is_valid_family_access (access_klass, member_klass, context_klass))
7306 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
7307 if (is_valid_family_access (access_klass, member_klass, context_klass))
7309 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7310 case FIELD_ATTRIBUTE_PUBLIC:
7317 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
7319 /* FIXME: check all overlapping fields */
7320 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7322 MonoClass *nested = method->klass->nested_in;
7324 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7327 nested = nested->nested_in;
7334 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
7336 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7338 MonoClass *nested = method->klass->nested_in;
7340 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7343 nested = nested->nested_in;
7348 * with generics calls to explicit interface implementations can be expressed
7349 * directly: the method is private, but we must allow it. This may be opening
7350 * a hole or the generics code should handle this differently.
7351 * Maybe just ensure the interface type is public.
7353 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
7359 * mono_method_can_access_method_with_context:
7360 * @method: The caller method
7361 * @called: The called method
7362 * @context_klass:TThe static type on stack of the owner @called object used
7364 * This function must be used with instance calls, as they have more strict family accessibility.
7365 * It can be used with static mehthod, but context_klass should be NULL.
7367 * Returns: TRUE if caller have proper visibility and acessibility to @called
7370 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
7372 MonoClass *access_class = method->klass;
7373 MonoClass *member_class = called->klass;
7374 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7376 MonoClass *nested = access_class->nested_in;
7378 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7381 nested = nested->nested_in;
7388 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7391 if (called->is_inflated) {
7392 MonoMethodInflated * infl = (MonoMethodInflated*)called;
7393 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
7402 * mono_method_can_access_method_with_context:
7403 * @method: The caller method
7404 * @field: The accessed field
7405 * @context_klass: The static type on stack of the owner @field object used
7407 * This function must be used with instance fields, as they have more strict family accessibility.
7408 * It can be used with static fields, but context_klass should be NULL.
7410 * Returns: TRUE if caller have proper visibility and acessibility to @field
7413 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
7415 MonoClass *access_class = method->klass;
7416 MonoClass *member_class = field->parent;
7417 /* FIXME: check all overlapping fields */
7418 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7420 MonoClass *nested = access_class->nested_in;
7422 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7425 nested = nested->nested_in;
7432 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7438 * mono_type_is_valid_enum_basetype:
7439 * @type: The MonoType to check
7441 * Returns: TRUE if the type can be used as the basetype of an enum
7443 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
7444 switch (type->type) {
7447 case MONO_TYPE_BOOLEAN:
7450 case MONO_TYPE_CHAR:
7463 * mono_class_is_valid_enum:
7464 * @klass: An enum class to be validated
7466 * This method verify the required properties an enum should have.
7468 * Returns: TRUE if the informed enum class is valid
7470 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
7471 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
7472 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
7474 gboolean mono_class_is_valid_enum (MonoClass *klass) {
7475 MonoClassField * field;
7476 gpointer iter = NULL;
7477 gboolean found_base_field = FALSE;
7479 g_assert (klass->enumtype);
7480 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
7481 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
7485 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
7488 while ((field = mono_class_get_fields (klass, &iter))) {
7489 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
7490 if (found_base_field)
7492 found_base_field = TRUE;
7493 if (!mono_type_is_valid_enum_basetype (field->type))
7498 if (!found_base_field)
7501 if (klass->method.count > 0)
7508 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
7510 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
7514 * mono_class_generic_sharing_enabled:
7517 * Returns whether generic sharing is enabled for class.
7519 * This is a stop-gap measure to slowly introduce generic sharing
7520 * until we have all the issues sorted out, at which time this
7521 * function will disappear and generic sharing will always be enabled.
7524 mono_class_generic_sharing_enabled (MonoClass *class)
7526 #if defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__mono_ppc__)
7527 static gboolean supported = TRUE;
7529 /* Not supported by the JIT backends */
7530 static gboolean supported = FALSE;
7532 static int generic_sharing = MONO_GENERIC_SHARING_NONE;
7533 static gboolean inited = FALSE;
7539 generic_sharing = MONO_GENERIC_SHARING_ALL;
7541 generic_sharing = MONO_GENERIC_SHARING_NONE;
7543 if ((option = g_getenv ("MONO_GENERIC_SHARING"))) {
7544 if (strcmp (option, "corlib") == 0)
7545 generic_sharing = MONO_GENERIC_SHARING_CORLIB;
7546 else if (strcmp (option, "collections") == 0)
7547 generic_sharing = MONO_GENERIC_SHARING_COLLECTIONS;
7548 else if (strcmp (option, "all") == 0)
7549 generic_sharing = MONO_GENERIC_SHARING_ALL;
7550 else if (strcmp (option, "none") == 0)
7551 generic_sharing = MONO_GENERIC_SHARING_NONE;
7553 g_warning ("Unknown generic sharing option `%s'.", option);
7557 generic_sharing = MONO_GENERIC_SHARING_NONE;
7562 switch (generic_sharing) {
7563 case MONO_GENERIC_SHARING_NONE:
7565 case MONO_GENERIC_SHARING_ALL:
7567 case MONO_GENERIC_SHARING_CORLIB :
7568 return class->image == mono_defaults.corlib;
7569 case MONO_GENERIC_SHARING_COLLECTIONS:
7570 if (class->image != mono_defaults.corlib)
7572 while (class->nested_in)
7573 class = class->nested_in;
7574 return g_str_has_prefix (class->name_space, "System.Collections.Generic");
7576 g_assert_not_reached ();