2 * class.c: Class management for the Mono runtime
5 * Miguel de Icaza (miguel@ximian.com)
7 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
19 #include <mono/io-layer/atomic.h>
21 #include <mono/metadata/image.h>
22 #include <mono/metadata/assembly.h>
23 #include <mono/metadata/metadata.h>
24 #include <mono/metadata/metadata-internals.h>
25 #include <mono/metadata/profiler-private.h>
26 #include <mono/metadata/tabledefs.h>
27 #include <mono/metadata/tokentype.h>
28 #include <mono/metadata/class-internals.h>
29 #include <mono/metadata/object.h>
30 #include <mono/metadata/appdomain.h>
31 #include <mono/metadata/mono-endian.h>
32 #include <mono/metadata/debug-helpers.h>
33 #include <mono/metadata/reflection.h>
34 #include <mono/metadata/exception.h>
35 #include <mono/metadata/security-manager.h>
36 #include <mono/metadata/security-core-clr.h>
37 #include <mono/metadata/attrdefs.h>
38 #include <mono/metadata/gc-internal.h>
39 #include <mono/metadata/verify-internals.h>
40 #include <mono/metadata/mono-debug.h>
41 #include <mono/utils/mono-counters.h>
42 #include <mono/utils/mono-string.h>
43 #include <mono/utils/mono-error-internals.h>
47 gboolean mono_print_vtable = FALSE;
50 * Controls whenever mono_class_init () constructs a generic vtable. This is TRUE by
51 * default to avoid breaking embedding apps, but set to FALSE by the runtime executable
54 gboolean mono_setup_vtable_in_class_init = TRUE;
57 guint32 inflated_classes, inflated_classes_size, inflated_methods_size;
58 guint32 classes_size, class_ext_size;
60 /* Function supplied by the runtime to find classes by name using information from the AOT file */
61 static MonoGetClassFromName get_class_from_name = NULL;
63 static MonoClass * mono_class_create_from_typedef (MonoImage *image, guint32 type_token);
64 static gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
65 static gboolean can_access_type (MonoClass *access_klass, MonoClass *member_klass);
66 static MonoMethod* find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags);
67 static int generic_array_methods (MonoClass *class);
68 static void setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos);
70 static MonoMethod* mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter);
72 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
73 void (*mono_debugger_class_loaded_methods_func) (MonoClass *klass) = NULL;
76 * mono_class_from_typeref:
78 * @type_token: a TypeRef token
80 * Creates the MonoClass* structure representing the type defined by
81 * the typeref token valid inside @image.
82 * Returns: the MonoClass* representing the typeref token, NULL ifcould
86 mono_class_from_typeref (MonoImage *image, guint32 type_token)
88 guint32 cols [MONO_TYPEREF_SIZE];
89 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
91 const char *name, *nspace;
95 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
97 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
98 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
100 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
101 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
102 case MONO_RESOLTION_SCOPE_MODULE:
104 g_error ("null ResolutionScope not yet handled");
105 /* a typedef in disguise */
106 return mono_class_from_name (image, nspace, name);
107 case MONO_RESOLTION_SCOPE_MODULEREF:
108 module = mono_image_load_module (image, idx);
110 return mono_class_from_name (module, nspace, name);
112 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
115 human_name = mono_stringify_assembly_name (&image->assembly->aname);
116 mono_loader_set_error_type_load (msg, human_name);
122 case MONO_RESOLTION_SCOPE_TYPEREF: {
123 MonoClass *enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
129 if (enclosing->nested_classes_inited && enclosing->ext) {
130 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
131 for (tmp = enclosing->ext->nested_classes; tmp; tmp = tmp->next) {
133 if (strcmp (res->name, name) == 0)
137 /* Don't call mono_class_init as we might've been called by it recursively */
138 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
140 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
141 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
142 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
144 if (strcmp (nname, name) == 0)
145 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
147 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
150 g_warning ("TypeRef ResolutionScope not yet handled (%d) for %s.%s in image %s", idx, nspace, name, image->name);
153 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
157 if (!image->references || !image->references [idx - 1])
158 mono_assembly_load_reference (image, idx - 1);
159 g_assert (image->references [idx - 1]);
161 /* If the assembly did not load, register this as a type load exception */
162 if (image->references [idx - 1] == REFERENCE_MISSING){
163 MonoAssemblyName aname;
166 mono_assembly_get_assemblyref (image, idx - 1, &aname);
167 human_name = mono_stringify_assembly_name (&aname);
168 mono_loader_set_error_assembly_load (human_name, image->assembly->ref_only);
174 return mono_class_from_name (image->references [idx - 1]->image, nspace, name);
179 mono_image_memdup (MonoImage *image, void *data, guint size)
181 void *res = mono_image_alloc (image, size);
182 memcpy (res, data, size);
186 /* Copy everything mono_metadata_free_array free. */
188 mono_dup_array_type (MonoImage *image, MonoArrayType *a)
191 a = mono_image_memdup (image, a, sizeof (MonoArrayType));
193 a->sizes = mono_image_memdup (image, a->sizes, a->numsizes * sizeof (int));
195 a->lobounds = mono_image_memdup (image, a->lobounds, a->numlobounds * sizeof (int));
197 a = g_memdup (a, sizeof (MonoArrayType));
199 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
201 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
206 /* Copy everything mono_metadata_free_method_signature free. */
208 mono_metadata_signature_deep_dup (MonoImage *image, MonoMethodSignature *sig)
212 sig = mono_metadata_signature_dup_full (image, sig);
214 sig->ret = mono_metadata_type_dup (image, sig->ret);
215 for (i = 0; i < sig->param_count; ++i)
216 sig->params [i] = mono_metadata_type_dup (image, sig->params [i]);
222 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
224 MonoAssembly *ta = klass->image->assembly;
226 g_string_append_printf (
227 str, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
229 ta->aname.major, ta->aname.minor, ta->aname.build, ta->aname.revision,
230 ta->aname.culture && *ta->aname.culture? ta->aname.culture: "neutral",
231 ta->aname.public_key_token [0] ? (char *)ta->aname.public_key_token : "null",
232 (ta->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
236 mono_type_name_check_byref (MonoType *type, GString *str)
239 g_string_append_c (str, '&');
243 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
244 MonoTypeNameFormat format)
248 switch (type->type) {
249 case MONO_TYPE_ARRAY: {
250 int i, rank = type->data.array->rank;
251 MonoTypeNameFormat nested_format;
253 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
254 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
256 mono_type_get_name_recurse (
257 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
258 g_string_append_c (str, '[');
260 g_string_append_c (str, '*');
261 for (i = 1; i < rank; i++)
262 g_string_append_c (str, ',');
263 g_string_append_c (str, ']');
265 mono_type_name_check_byref (type, str);
267 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
268 _mono_type_get_assembly_name (type->data.array->eklass, str);
271 case MONO_TYPE_SZARRAY: {
272 MonoTypeNameFormat nested_format;
274 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
275 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
277 mono_type_get_name_recurse (
278 &type->data.klass->byval_arg, str, FALSE, nested_format);
279 g_string_append (str, "[]");
281 mono_type_name_check_byref (type, str);
283 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
284 _mono_type_get_assembly_name (type->data.klass, str);
287 case MONO_TYPE_PTR: {
288 MonoTypeNameFormat nested_format;
290 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
291 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
293 mono_type_get_name_recurse (
294 type->data.type, str, FALSE, nested_format);
295 g_string_append_c (str, '*');
297 mono_type_name_check_byref (type, str);
299 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
300 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
305 if (!mono_generic_param_info (type->data.generic_param))
306 g_string_append_printf (str, "%s%d", type->type == MONO_TYPE_VAR ? "!" : "!!", type->data.generic_param->num);
308 g_string_append (str, mono_generic_param_info (type->data.generic_param)->name);
310 mono_type_name_check_byref (type, str);
314 klass = mono_class_from_mono_type (type);
315 if (klass->nested_in) {
316 mono_type_get_name_recurse (
317 &klass->nested_in->byval_arg, str, TRUE, format);
318 if (format == MONO_TYPE_NAME_FORMAT_IL)
319 g_string_append_c (str, '.');
321 g_string_append_c (str, '+');
322 } else if (*klass->name_space) {
323 g_string_append (str, klass->name_space);
324 g_string_append_c (str, '.');
326 if (format == MONO_TYPE_NAME_FORMAT_IL) {
327 char *s = strchr (klass->name, '`');
328 int len = s ? s - klass->name : strlen (klass->name);
330 g_string_append_len (str, klass->name, len);
332 g_string_append (str, klass->name);
335 if (klass->generic_class) {
336 MonoGenericClass *gclass = klass->generic_class;
337 MonoGenericInst *inst = gclass->context.class_inst;
338 MonoTypeNameFormat nested_format;
341 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
342 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
344 if (format == MONO_TYPE_NAME_FORMAT_IL)
345 g_string_append_c (str, '<');
347 g_string_append_c (str, '[');
348 for (i = 0; i < inst->type_argc; i++) {
349 MonoType *t = inst->type_argv [i];
352 g_string_append_c (str, ',');
353 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
354 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
355 g_string_append_c (str, '[');
356 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
357 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
358 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
359 g_string_append_c (str, ']');
361 if (format == MONO_TYPE_NAME_FORMAT_IL)
362 g_string_append_c (str, '>');
364 g_string_append_c (str, ']');
365 } else if (klass->generic_container &&
366 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
367 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
370 if (format == MONO_TYPE_NAME_FORMAT_IL)
371 g_string_append_c (str, '<');
373 g_string_append_c (str, '[');
374 for (i = 0; i < klass->generic_container->type_argc; i++) {
376 g_string_append_c (str, ',');
377 g_string_append (str, mono_generic_container_get_param_info (klass->generic_container, i)->name);
379 if (format == MONO_TYPE_NAME_FORMAT_IL)
380 g_string_append_c (str, '>');
382 g_string_append_c (str, ']');
385 mono_type_name_check_byref (type, str);
387 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
388 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
389 _mono_type_get_assembly_name (klass, str);
395 * mono_type_get_name_full:
397 * @format: the format for the return string.
400 * Returns: the string representation in a number of formats:
402 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
403 * returned in the formatrequired by System.Reflection, this is the
404 * inverse of mono_reflection_parse_type ().
406 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
407 * be used by the IL assembler.
409 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
411 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
414 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
418 result = g_string_new ("");
420 mono_type_get_name_recurse (type, result, FALSE, format);
422 return g_string_free (result, FALSE);
426 * mono_type_get_full_name:
429 * Returns: the string representation for type as required by System.Reflection.
430 * The inverse of mono_reflection_parse_type ().
433 mono_type_get_full_name (MonoClass *class)
435 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
439 * mono_type_get_name:
442 * Returns: the string representation for type as it would be represented in IL code.
445 mono_type_get_name (MonoType *type)
447 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
451 * mono_type_get_underlying_type:
454 * Returns: the MonoType for the underlying integer type if @type
455 * is an enum and byref is false, otherwise the type itself.
458 mono_type_get_underlying_type (MonoType *type)
460 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
461 return mono_class_enum_basetype (type->data.klass);
462 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
463 return mono_class_enum_basetype (type->data.generic_class->container_class);
468 * mono_class_is_open_constructed_type:
471 * Returns TRUE if type represents a generics open constructed type
472 * (not all the type parameters required for the instantiation have
476 mono_class_is_open_constructed_type (MonoType *t)
482 case MONO_TYPE_SZARRAY:
483 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
484 case MONO_TYPE_ARRAY:
485 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
487 return mono_class_is_open_constructed_type (t->data.type);
488 case MONO_TYPE_GENERICINST:
489 return t->data.generic_class->context.class_inst->is_open;
496 inflate_generic_type (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
498 mono_error_init (error);
500 switch (type->type) {
501 case MONO_TYPE_MVAR: {
503 int num = mono_type_get_generic_param_num (type);
504 MonoGenericInst *inst = context->method_inst;
505 if (!inst || !inst->type_argv)
507 if (num >= inst->type_argc) {
508 MonoGenericParamInfo *info = mono_generic_param_info (type->data.generic_param);
509 mono_error_set_bad_image (error, image->module_name, "MVAR %d (%s) cannot be expanded in this context with %d instantiations",
510 num, info ? info->name : "", inst->type_argc);
515 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
516 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
517 * ->byref and ->attrs from @type are propagated to the returned type.
519 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
520 nt->byref = type->byref;
521 nt->attrs = type->attrs;
524 case MONO_TYPE_VAR: {
526 int num = mono_type_get_generic_param_num (type);
527 MonoGenericInst *inst = context->class_inst;
530 if (num >= inst->type_argc) {
531 MonoGenericParamInfo *info = mono_generic_param_info (type->data.generic_param);
532 mono_error_set_bad_image (error, image->module_name, "VAR %d (%s) cannot be expanded in this context with %d instantiations",
533 num, info ? info->name : "", inst->type_argc);
536 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
537 nt->byref = type->byref;
538 nt->attrs = type->attrs;
541 case MONO_TYPE_SZARRAY: {
542 MonoClass *eclass = type->data.klass;
543 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context, error);
544 if (!inflated || !mono_error_ok (error))
546 nt = mono_metadata_type_dup (image, type);
547 nt->data.klass = mono_class_from_mono_type (inflated);
548 mono_metadata_free_type (inflated);
551 case MONO_TYPE_ARRAY: {
552 MonoClass *eclass = type->data.array->eklass;
553 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context, error);
554 if (!inflated || !mono_error_ok (error))
556 nt = mono_metadata_type_dup (image, type);
557 nt->data.array = g_memdup (nt->data.array, sizeof (MonoArrayType));
558 nt->data.array->eklass = mono_class_from_mono_type (inflated);
559 mono_metadata_free_type (inflated);
562 case MONO_TYPE_GENERICINST: {
563 MonoGenericClass *gclass = type->data.generic_class;
564 MonoGenericInst *inst;
566 if (!gclass->context.class_inst->is_open)
569 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context);
570 if (inst != gclass->context.class_inst)
571 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
573 if (gclass == type->data.generic_class)
576 nt = mono_metadata_type_dup (image, type);
577 nt->data.generic_class = gclass;
580 case MONO_TYPE_CLASS:
581 case MONO_TYPE_VALUETYPE: {
582 MonoClass *klass = type->data.klass;
583 MonoGenericContainer *container = klass->generic_container;
584 MonoGenericInst *inst;
585 MonoGenericClass *gclass = NULL;
591 /* We can't use context->class_inst directly, since it can have more elements */
592 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context);
593 if (inst == container->context.class_inst)
596 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
598 nt = mono_metadata_type_dup (image, type);
599 nt->type = MONO_TYPE_GENERICINST;
600 nt->data.generic_class = gclass;
610 mono_generic_class_get_context (MonoGenericClass *gclass)
612 return &gclass->context;
616 mono_class_get_context (MonoClass *class)
618 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
622 * mono_class_get_generic_container:
624 * Return the generic container of KLASS which should be a generic type definition.
626 MonoGenericContainer*
627 mono_class_get_generic_container (MonoClass *klass)
629 g_assert (klass->is_generic);
631 return klass->generic_container;
635 * mono_class_get_generic_class:
637 * Return the MonoGenericClass of KLASS, which should be a generic instance.
640 mono_class_get_generic_class (MonoClass *klass)
642 g_assert (klass->is_inflated);
644 return klass->generic_class;
648 * mono_class_inflate_generic_type_with_mempool:
649 * @mempool: a mempool
651 * @context: a generics context
652 * @error: error context
654 * The same as mono_class_inflate_generic_type, but allocates the MonoType
655 * from mempool if it is non-NULL. If it is NULL, the MonoType is
656 * allocated on the heap and is owned by the caller.
657 * The returned type can potentially be the same as TYPE, so it should not be
658 * modified by the caller, and it should be freed using mono_metadata_free_type ().
661 mono_class_inflate_generic_type_with_mempool (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
663 MonoType *inflated = NULL;
666 inflated = inflate_generic_type (image, type, context, error);
667 if (!mono_error_ok (error))
671 MonoType *shared = mono_metadata_get_shared_type (type);
676 return mono_metadata_type_dup (image, type);
680 mono_stats.inflated_type_count++;
685 * mono_class_inflate_generic_type:
687 * @context: a generics context
689 * If @type is a generic type and @context is not NULL, instantiate it using the
690 * generics context @context.
692 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
693 * on the heap and is owned by the caller. Returns NULL on error.
695 * @deprecated Please use mono_class_inflate_generic_type_checked instead
698 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
702 result = mono_class_inflate_generic_type_checked (type, context, &error);
704 if (!mono_error_ok (&error)) {
705 mono_error_cleanup (&error);
712 * mono_class_inflate_generic_type:
714 * @context: a generics context
715 * @error: error context to use
717 * If @type is a generic type and @context is not NULL, instantiate it using the
718 * generics context @context.
720 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
721 * on the heap and is owned by the caller.
724 mono_class_inflate_generic_type_checked (MonoType *type, MonoGenericContext *context, MonoError *error)
726 return mono_class_inflate_generic_type_with_mempool (NULL, type, context, error);
730 * mono_class_inflate_generic_type_no_copy:
732 * Same as inflate_generic_type_with_mempool, but return TYPE if no inflation
736 mono_class_inflate_generic_type_no_copy (MonoImage *image, MonoType *type, MonoGenericContext *context)
739 MonoType *inflated = NULL;
742 inflated = inflate_generic_type (image, type, context, &error);
743 g_assert (mono_error_ok (&error)); /*FIXME proper error handling*/
749 mono_stats.inflated_type_count++;
754 * mono_class_inflate_generic_class:
756 * Inflate the class GKLASS with CONTEXT.
759 mono_class_inflate_generic_class (MonoClass *gklass, MonoGenericContext *context)
765 inflated = mono_class_inflate_generic_type_checked (&gklass->byval_arg, context, &error);
766 g_assert (mono_error_ok (&error)); /*FIXME proper error handling*/
768 res = mono_class_from_mono_type (inflated);
769 mono_metadata_free_type (inflated);
774 static MonoGenericContext
775 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with)
777 MonoGenericInst *class_inst = NULL;
778 MonoGenericInst *method_inst = NULL;
779 MonoGenericContext res;
781 if (context->class_inst)
782 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with);
784 if (context->method_inst)
785 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with);
787 res.class_inst = class_inst;
788 res.method_inst = method_inst;
794 * mono_class_inflate_generic_method:
795 * @method: a generic method
796 * @context: a generics context
798 * Instantiate the generic method @method using the generics context @context.
800 * Returns: the new instantiated method
803 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
805 return mono_class_inflate_generic_method_full (method, NULL, context);
809 * mono_class_inflate_generic_method_full:
811 * Instantiate method @method with the generic context @context.
812 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
813 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
816 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
819 MonoMethodInflated *iresult, *cached;
820 MonoMethodSignature *sig;
821 MonoGenericContext tmp_context;
822 gboolean is_mb_open = FALSE;
824 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
825 while (method->is_inflated) {
826 MonoGenericContext *method_context = mono_method_get_context (method);
827 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
829 tmp_context = inflate_generic_context (method_context, context);
830 context = &tmp_context;
832 if (mono_metadata_generic_context_equal (method_context, context))
835 method = imethod->declaring;
838 if (!method->is_generic && !method->klass->generic_container)
842 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
843 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
844 * This is opposite to the way non-SRE MethodInfos behave.
846 * This happens, for example, when we want to emit a recursive generic method. Given the following C# code:
848 * void Example<T> () {
852 * In Example, the method token must be encoded as: "void Example<!!0>()"
854 * The reference to the first generic argument, "!!0", must be explicit otherwise it won't be inflated
855 * properly. To get that we need to inflate the MethodBuilder with its own arguments.
857 * On the other hand, inflating a non-SRE generic method with its own arguments should
858 * return itself. For example:
860 * MethodInfo m = ... //m is a generic method definition
861 * MethodInfo res = m.MakeGenericMethod (m.GetGenericArguments ());
864 * To allow such scenarios we must allow inflation of MethodBuilder to happen in a diferent way than
865 * what happens with regular methods.
867 * There is one last touch to this madness, once a TypeBuilder is finished, IOW CreateType() is called,
868 * everything should behave like a regular type or method.
871 is_mb_open = method->is_generic &&
872 method->klass->image->dynamic && !method->klass->wastypebuilder && /* that is a MethodBuilder from an unfinished TypeBuilder */
873 context->method_inst == mono_method_get_generic_container (method)->context.method_inst; /* and it's been instantiated with its own arguments. */
875 iresult = g_new0 (MonoMethodInflated, 1);
876 iresult->context = *context;
877 iresult->declaring = method;
878 iresult->method.method.is_mb_open = is_mb_open;
880 if (!context->method_inst && method->is_generic)
881 iresult->context.method_inst = mono_method_get_generic_container (method)->context.method_inst;
883 if (!context->class_inst) {
884 g_assert (!iresult->declaring->klass->generic_class);
885 if (iresult->declaring->klass->generic_container)
886 iresult->context.class_inst = iresult->declaring->klass->generic_container->context.class_inst;
887 else if (iresult->declaring->klass->generic_class)
888 iresult->context.class_inst = iresult->declaring->klass->generic_class->context.class_inst;
892 cached = mono_method_inflated_lookup (iresult, FALSE);
894 mono_loader_unlock ();
896 return (MonoMethod*)cached;
899 mono_stats.inflated_method_count++;
901 inflated_methods_size += sizeof (MonoMethodInflated);
903 sig = mono_method_signature (method);
905 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
907 memcpy (&iresult->method.normal, method, sizeof (MonoMethodNormal));
908 iresult->method.normal.header = NULL;
911 result = (MonoMethod *) iresult;
912 result->is_inflated = TRUE;
913 result->is_generic = FALSE;
914 result->signature = NULL;
915 result->is_mb_open = is_mb_open;
917 if (!context->method_inst) {
918 /* Set the generic_container of the result to the generic_container of method */
919 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
921 if (generic_container) {
922 result->is_generic = 1;
923 mono_method_set_generic_container (result, generic_container);
927 if (!klass_hint || !klass_hint->generic_class ||
928 klass_hint->generic_class->container_class != method->klass ||
929 klass_hint->generic_class->context.class_inst != context->class_inst)
932 if (method->klass->generic_container)
933 result->klass = klass_hint;
935 if (!result->klass) {
937 MonoType *inflated = inflate_generic_type (NULL, &method->klass->byval_arg, context, &error);
939 g_assert (mono_error_ok (&error)); /*FIXME proper error handling*/
941 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
943 mono_metadata_free_type (inflated);
946 mono_method_inflated_lookup (iresult, TRUE);
947 mono_loader_unlock ();
952 * mono_get_inflated_method:
954 * Obsolete. We keep it around since it's mentioned in the public API.
957 mono_get_inflated_method (MonoMethod *method)
963 * mono_method_get_context_general:
965 * @uninflated: handle uninflated methods?
967 * Returns the generic context of a method or NULL if it doesn't have
968 * one. For an inflated method that's the context stored in the
969 * method. Otherwise it's in the method's generic container or in the
970 * generic container of the method's class.
973 mono_method_get_context_general (MonoMethod *method, gboolean uninflated)
975 if (method->is_inflated) {
976 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
977 return &imethod->context;
981 if (method->is_generic)
982 return &(mono_method_get_generic_container (method)->context);
983 if (method->klass->generic_container)
984 return &method->klass->generic_container->context;
989 * mono_method_get_context:
992 * Returns the generic context for method if it's inflated, otherwise
996 mono_method_get_context (MonoMethod *method)
998 return mono_method_get_context_general (method, FALSE);
1002 * mono_method_get_generic_container:
1004 * Returns the generic container of METHOD, which should be a generic method definition.
1005 * Returns NULL if METHOD is not a generic method definition.
1006 * LOCKING: Acquires the loader lock.
1008 MonoGenericContainer*
1009 mono_method_get_generic_container (MonoMethod *method)
1011 MonoGenericContainer *container;
1013 if (!method->is_generic)
1016 container = mono_image_property_lookup (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER);
1017 g_assert (container);
1023 * mono_method_set_generic_container:
1025 * Sets the generic container of METHOD to CONTAINER.
1026 * LOCKING: Acquires the loader lock.
1029 mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container)
1031 g_assert (method->is_generic);
1033 mono_image_property_insert (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER, container);
1037 * mono_class_find_enum_basetype:
1038 * @class: The enum class
1040 * Determine the basetype of an enum by iterating through its fields. We do this
1041 * in a separate function since it is cheaper than calling mono_class_setup_fields.
1044 mono_class_find_enum_basetype (MonoClass *class)
1046 MonoGenericContainer *container = NULL;
1047 MonoImage *m = class->image;
1048 const int top = class->field.count;
1051 g_assert (class->enumtype);
1053 if (class->generic_container)
1054 container = class->generic_container;
1055 else if (class->generic_class) {
1056 MonoClass *gklass = class->generic_class->container_class;
1058 container = gklass->generic_container;
1059 g_assert (container);
1063 * Fetch all the field information.
1065 for (i = 0; i < top; i++){
1067 guint32 cols [MONO_FIELD_SIZE];
1068 int idx = class->field.first + i;
1071 /* class->field.first and idx points into the fieldptr table */
1072 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1074 if (cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC) //no need to decode static fields
1077 if (!mono_verifier_verify_field_signature (class->image, cols [MONO_FIELD_SIGNATURE], NULL))
1080 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1081 mono_metadata_decode_value (sig, &sig);
1082 /* FIELD signature == 0x06 */
1086 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1089 if (class->generic_class) {
1090 //FIXME do we leak here?
1091 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
1092 ftype->attrs = cols [MONO_FIELD_FLAGS];
1102 * mono_class_setup_fields:
1103 * @class: The class to initialize
1105 * Initializes the class->fields.
1106 * LOCKING: Assumes the loader lock is held.
1109 mono_class_setup_fields (MonoClass *class)
1111 MonoImage *m = class->image;
1112 int top = class->field.count;
1113 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1114 int i, blittable = TRUE;
1115 guint32 real_size = 0;
1116 guint32 packing_size = 0;
1117 gboolean explicit_size;
1118 MonoClassField *field;
1119 MonoGenericContainer *container = NULL;
1120 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
1122 if (class->size_inited)
1125 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1127 * This happens when a generic instance of an unfinished generic typebuilder
1128 * is used as an element type for creating an array type. We can't initialize
1129 * the fields of this class using the fields of gklass, since gklass is not
1130 * finished yet, fields could be added to it later.
1136 mono_class_setup_fields (gtd);
1137 if (gtd->exception_type) {
1138 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1142 top = gtd->field.count;
1143 class->field.first = gtd->field.first;
1144 class->field.count = gtd->field.count;
1147 class->instance_size = 0;
1149 class->sizes.class_size = 0;
1151 if (class->parent) {
1152 /* For generic instances, class->parent might not have been initialized */
1153 mono_class_init (class->parent);
1154 if (!class->parent->size_inited)
1155 mono_class_setup_fields (class->parent);
1156 class->instance_size += class->parent->instance_size;
1157 class->min_align = class->parent->min_align;
1158 /* we use |= since it may have been set already */
1159 class->has_references |= class->parent->has_references;
1160 blittable = class->parent->blittable;
1162 class->instance_size = sizeof (MonoObject);
1163 class->min_align = 1;
1166 /* We can't really enable 16 bytes alignment until the GC supports it.
1167 The whole layout/instance size code must be reviewed because we do alignment calculation in terms of the
1168 boxed instance, which leads to unexplainable holes at the beginning of an object embedding a simd type.
1169 Bug #506144 is an example of this issue.
1171 if (class->simd_type)
1172 class->min_align = 16;
1174 /* Get the real size */
1175 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
1177 if (explicit_size) {
1178 g_assert ((packing_size & 0xfffffff0) == 0);
1179 class->packing_size = packing_size;
1180 real_size += class->instance_size;
1184 if (explicit_size && real_size) {
1185 class->instance_size = MAX (real_size, class->instance_size);
1187 class->size_inited = 1;
1188 class->blittable = blittable;
1192 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1195 /* Prevent infinite loops if the class references itself */
1196 class->size_inited = 1;
1198 class->fields = mono_image_alloc0 (class->image, sizeof (MonoClassField) * top);
1200 if (class->generic_container) {
1201 container = class->generic_container;
1203 container = gtd->generic_container;
1204 g_assert (container);
1208 * Fetch all the field information.
1210 for (i = 0; i < top; i++){
1211 int idx = class->field.first + i;
1212 field = &class->fields [i];
1214 field->parent = class;
1217 MonoClassField *gfield = >d->fields [i];
1219 field->name = mono_field_get_name (gfield);
1220 /*This memory must come from the image mempool as we don't have a chance to free it.*/
1221 field->type = mono_class_inflate_generic_type_no_copy (class->image, gfield->type, mono_class_get_context (class));
1222 g_assert (field->type->attrs == gfield->type->attrs);
1223 if (mono_field_is_deleted (field))
1225 field->offset = gfield->offset;
1228 guint32 cols [MONO_FIELD_SIZE];
1230 /* class->field.first and idx points into the fieldptr table */
1231 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1232 /* The name is needed for fieldrefs */
1233 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
1234 if (!mono_verifier_verify_field_signature (class->image, cols [MONO_FIELD_SIGNATURE], NULL)) {
1235 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1238 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1239 mono_metadata_decode_value (sig, &sig);
1240 /* FIELD signature == 0x06 */
1241 g_assert (*sig == 0x06);
1242 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1244 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1247 if (mono_field_is_deleted (field))
1249 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1251 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1252 field->offset = offset;
1253 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1254 g_warning ("%s not initialized correctly (missing field layout info for %s)",
1255 class->name, mono_field_get_name (field));
1259 /* Only do these checks if we still think this type is blittable */
1260 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1261 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1264 MonoClass *field_class = mono_class_from_mono_type (field->type);
1266 mono_class_setup_fields (field_class);
1267 if (!field_class || !field_class->blittable)
1272 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1273 class->cast_class = class->element_class = mono_class_from_mono_type (field->type);
1274 blittable = class->element_class->blittable;
1277 /* The def_value of fields is compute lazily during vtable creation */
1280 if (class == mono_defaults.string_class)
1283 class->blittable = blittable;
1285 if (class->enumtype && !mono_class_enum_basetype (class)) {
1286 if (!((strcmp (class->name, "Enum") == 0) && (strcmp (class->name_space, "System") == 0)))
1289 if (explicit_size && real_size) {
1290 class->instance_size = MAX (real_size, class->instance_size);
1293 if (class->exception_type)
1295 mono_class_layout_fields (class);
1299 * mono_class_setup_fields_locking:
1300 * @class: The class to initialize
1302 * Initializes the class->fields array of fields.
1303 * Aquires the loader lock.
1306 mono_class_setup_fields_locking (MonoClass *class)
1308 mono_loader_lock ();
1309 mono_class_setup_fields (class);
1310 mono_loader_unlock ();
1314 * mono_class_has_references:
1316 * Returns whenever @klass->has_references is set, initializing it if needed.
1317 * Aquires the loader lock.
1320 mono_class_has_references (MonoClass *klass)
1322 if (klass->init_pending) {
1323 /* Be conservative */
1326 mono_class_init (klass);
1328 return klass->has_references;
1332 /* useful until we keep track of gc-references in corlib etc. */
1334 #define IS_GC_REFERENCE(t) FALSE
1336 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1340 * mono_type_get_basic_type_from_generic:
1343 * Returns a closed type corresponding to the possibly open type
1347 mono_type_get_basic_type_from_generic (MonoType *type)
1349 /* When we do generic sharing we let type variables stand for reference types. */
1350 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1351 return &mono_defaults.object_class->byval_arg;
1356 * mono_class_layout_fields:
1359 * Compute the placement of fields inside an object or struct, according to
1360 * the layout rules and set the following fields in @class:
1361 * - has_references (if the class contains instance references firled or structs that contain references)
1362 * - has_static_refs (same, but for static fields)
1363 * - instance_size (size of the object in memory)
1364 * - class_size (size needed for the static fields)
1365 * - size_inited (flag set when the instance_size is set)
1367 * LOCKING: this is supposed to be called with the loader lock held.
1370 mono_class_layout_fields (MonoClass *class)
1373 const int top = class->field.count;
1374 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1375 guint32 pass, passes, real_size;
1376 gboolean gc_aware_layout = FALSE;
1377 MonoClassField *field;
1380 * When we do generic sharing we need to have layout
1381 * information for open generic classes (either with a generic
1382 * context containing type variables or with a generic
1383 * container), so we don't return in that case anymore.
1387 * Enable GC aware auto layout: in this mode, reference
1388 * fields are grouped together inside objects, increasing collector
1390 * Requires that all classes whose layout is known to native code be annotated
1391 * with [StructLayout (LayoutKind.Sequential)]
1392 * Value types have gc_aware_layout disabled by default, as per
1393 * what the default is for other runtimes.
1395 /* corlib is missing [StructLayout] directives in many places */
1396 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1397 if (class->image != mono_defaults.corlib &&
1398 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1399 gc_aware_layout = TRUE;
1400 /* from System.dll, used in metadata/process.h */
1401 if (strcmp (class->name, "ProcessStartInfo") == 0)
1402 gc_aware_layout = FALSE;
1405 /* Compute klass->has_references */
1407 * Process non-static fields first, since static fields might recursively
1408 * refer to the class itself.
1410 for (i = 0; i < top; i++) {
1413 field = &class->fields [i];
1415 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1416 ftype = mono_type_get_underlying_type (field->type);
1417 ftype = mono_type_get_basic_type_from_generic (ftype);
1418 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1419 class->has_references = TRUE;
1423 for (i = 0; i < top; i++) {
1426 field = &class->fields [i];
1428 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1429 ftype = mono_type_get_underlying_type (field->type);
1430 ftype = mono_type_get_basic_type_from_generic (ftype);
1431 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1432 class->has_static_refs = TRUE;
1436 for (i = 0; i < top; i++) {
1439 field = &class->fields [i];
1441 ftype = mono_type_get_underlying_type (field->type);
1442 ftype = mono_type_get_basic_type_from_generic (ftype);
1443 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1444 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1445 class->has_static_refs = TRUE;
1447 class->has_references = TRUE;
1452 * Compute field layout and total size (not considering static fields)
1456 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1457 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1459 if (gc_aware_layout)
1464 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1468 real_size = class->parent->instance_size;
1470 real_size = sizeof (MonoObject);
1472 for (pass = 0; pass < passes; ++pass) {
1473 for (i = 0; i < top; i++){
1478 field = &class->fields [i];
1480 if (mono_field_is_deleted (field))
1482 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1485 ftype = mono_type_get_underlying_type (field->type);
1486 ftype = mono_type_get_basic_type_from_generic (ftype);
1487 if (gc_aware_layout) {
1488 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1497 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1498 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1499 /* This field is a hack inserted by MCS to empty structures */
1503 size = mono_type_size (field->type, &align);
1505 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1506 align = class->packing_size ? MIN (class->packing_size, align): align;
1507 /* if the field has managed references, we need to force-align it
1510 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1511 align = MAX (align, sizeof (gpointer));
1513 class->min_align = MAX (align, class->min_align);
1514 field->offset = real_size;
1515 field->offset += align - 1;
1516 field->offset &= ~(align - 1);
1517 real_size = field->offset + size;
1520 class->instance_size = MAX (real_size, class->instance_size);
1522 if (class->instance_size & (class->min_align - 1)) {
1523 class->instance_size += class->min_align - 1;
1524 class->instance_size &= ~(class->min_align - 1);
1528 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1530 for (i = 0; i < top; i++) {
1535 field = &class->fields [i];
1538 * There must be info about all the fields in a type if it
1539 * uses explicit layout.
1542 if (mono_field_is_deleted (field))
1544 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1547 size = mono_type_size (field->type, &align);
1548 class->min_align = MAX (align, class->min_align);
1551 * When we get here, field->offset is already set by the
1552 * loader (for either runtime fields or fields loaded from metadata).
1553 * The offset is from the start of the object: this works for both
1554 * classes and valuetypes.
1556 field->offset += sizeof (MonoObject);
1557 ftype = mono_type_get_underlying_type (field->type);
1558 ftype = mono_type_get_basic_type_from_generic (ftype);
1559 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1560 if (field->offset % sizeof (gpointer)) {
1561 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1568 real_size = MAX (real_size, size + field->offset);
1570 class->instance_size = MAX (real_size, class->instance_size);
1574 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1576 * For small structs, set min_align to at least the struct size to improve
1577 * performance, and since the JIT memset/memcpy code assumes this and generates
1578 * unaligned accesses otherwise. See #78990 for a testcase.
1580 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1581 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1584 class->size_inited = 1;
1587 * Compute static field layout and size
1589 for (i = 0; i < top; i++){
1593 field = &class->fields [i];
1595 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1597 if (mono_field_is_deleted (field))
1600 size = mono_type_size (field->type, &align);
1601 field->offset = class->sizes.class_size;
1602 field->offset += align - 1;
1603 field->offset &= ~(align - 1);
1604 class->sizes.class_size = field->offset + size;
1609 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1613 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1614 method->klass = class;
1615 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1616 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1617 method->signature = sig;
1618 method->name = name;
1621 if (name [0] == '.') {
1622 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1624 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1630 * mono_class_setup_methods:
1633 * Initializes the 'methods' array in the klass.
1634 * Calling this method should be avoided if possible since it allocates a lot
1635 * of long-living MonoMethod structures.
1636 * Methods belonging to an interface are assigned a sequential slot starting
1640 mono_class_setup_methods (MonoClass *class)
1643 MonoMethod **methods;
1648 mono_loader_lock ();
1650 if (class->methods) {
1651 mono_loader_unlock ();
1655 if (class->generic_class) {
1656 MonoClass *gklass = class->generic_class->container_class;
1658 mono_class_init (gklass);
1659 mono_class_setup_methods (gklass);
1661 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1662 class->method.count = gklass->method.count;
1663 methods = g_new0 (MonoMethod *, class->method.count + 1);
1665 for (i = 0; i < class->method.count; i++) {
1666 methods [i] = mono_class_inflate_generic_method_full (
1667 gklass->methods [i], class, mono_class_get_context (class));
1669 } else if (class->rank) {
1670 MonoMethod *amethod;
1671 MonoMethodSignature *sig;
1672 int count_generic = 0, first_generic = 0;
1675 class->method.count = 3 + (class->rank > 1? 2: 1);
1677 mono_class_setup_interfaces (class);
1679 if (class->interface_count) {
1680 count_generic = generic_array_methods (class);
1681 first_generic = class->method.count;
1682 class->method.count += class->interface_count * count_generic;
1685 methods = mono_image_alloc0 (class->image, sizeof (MonoMethod*) * class->method.count);
1687 sig = mono_metadata_signature_alloc (class->image, class->rank);
1688 sig->ret = &mono_defaults.void_class->byval_arg;
1689 sig->pinvoke = TRUE;
1690 sig->hasthis = TRUE;
1691 for (i = 0; i < class->rank; ++i)
1692 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1694 amethod = create_array_method (class, ".ctor", sig);
1695 methods [method_num++] = amethod;
1696 if (class->rank > 1) {
1697 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1698 sig->ret = &mono_defaults.void_class->byval_arg;
1699 sig->pinvoke = TRUE;
1700 sig->hasthis = TRUE;
1701 for (i = 0; i < class->rank * 2; ++i)
1702 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1704 amethod = create_array_method (class, ".ctor", sig);
1705 methods [method_num++] = amethod;
1707 /* element Get (idx11, [idx2, ...]) */
1708 sig = mono_metadata_signature_alloc (class->image, class->rank);
1709 sig->ret = &class->element_class->byval_arg;
1710 sig->pinvoke = TRUE;
1711 sig->hasthis = TRUE;
1712 for (i = 0; i < class->rank; ++i)
1713 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1714 amethod = create_array_method (class, "Get", sig);
1715 methods [method_num++] = amethod;
1716 /* element& Address (idx11, [idx2, ...]) */
1717 sig = mono_metadata_signature_alloc (class->image, class->rank);
1718 sig->ret = &class->element_class->this_arg;
1719 sig->pinvoke = TRUE;
1720 sig->hasthis = TRUE;
1721 for (i = 0; i < class->rank; ++i)
1722 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1723 amethod = create_array_method (class, "Address", sig);
1724 methods [method_num++] = amethod;
1725 /* void Set (idx11, [idx2, ...], element) */
1726 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1727 sig->ret = &mono_defaults.void_class->byval_arg;
1728 sig->pinvoke = TRUE;
1729 sig->hasthis = TRUE;
1730 for (i = 0; i < class->rank; ++i)
1731 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1732 sig->params [i] = &class->element_class->byval_arg;
1733 amethod = create_array_method (class, "Set", sig);
1734 methods [method_num++] = amethod;
1736 for (i = 0; i < class->interface_count; i++)
1737 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1739 methods = mono_image_alloc (class->image, sizeof (MonoMethod*) * class->method.count);
1740 for (i = 0; i < class->method.count; ++i) {
1741 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1742 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1746 if (MONO_CLASS_IS_INTERFACE (class))
1747 for (i = 0; i < class->method.count; ++i)
1748 methods [i]->slot = i;
1750 /* Needed because of the double-checking locking pattern */
1751 mono_memory_barrier ();
1753 class->methods = methods;
1755 if (mono_debugger_class_loaded_methods_func)
1756 mono_debugger_class_loaded_methods_func (class);
1758 mono_loader_unlock ();
1762 * mono_class_get_method_by_index:
1764 * Returns class->methods [index], initializing class->methods if neccesary.
1766 * LOCKING: Acquires the loader lock.
1769 mono_class_get_method_by_index (MonoClass *class, int index)
1771 /* Avoid calling setup_methods () if possible */
1772 if (class->generic_class && !class->methods) {
1773 MonoClass *gklass = class->generic_class->container_class;
1776 m = mono_class_inflate_generic_method_full (
1777 gklass->methods [index], class, mono_class_get_context (class));
1779 * If setup_methods () is called later for this class, no duplicates are created,
1780 * since inflate_generic_method guarantees that only one instance of a method
1781 * is created for each context.
1784 mono_class_setup_methods (class);
1785 g_assert (m == class->methods [index]);
1789 mono_class_setup_methods (class);
1790 g_assert (index >= 0 && index < class->method.count);
1791 return class->methods [index];
1796 * mono_class_get_inflated_method:
1798 * Given an inflated class CLASS and a method METHOD which should be a method of
1799 * CLASS's generic definition, return the inflated method corresponding to METHOD.
1802 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
1804 MonoClass *gklass = class->generic_class->container_class;
1807 mono_class_setup_methods (gklass);
1808 for (i = 0; i < gklass->method.count; ++i) {
1809 if (gklass->methods [i] == method) {
1811 return class->methods [i];
1813 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
1821 * mono_class_get_vtable_entry:
1823 * Returns class->vtable [offset], computing it if neccesary.
1824 * LOCKING: Acquires the loader lock.
1827 mono_class_get_vtable_entry (MonoClass *class, int offset)
1831 if (class->rank == 1) {
1833 * szarrays do not overwrite any methods of Array, so we can avoid
1834 * initializing their vtables in some cases.
1836 mono_class_setup_vtable (class->parent);
1837 if (offset < class->parent->vtable_size)
1838 return class->parent->vtable [offset];
1841 if (class->generic_class) {
1842 MonoClass *gklass = class->generic_class->container_class;
1843 mono_class_setup_vtable (gklass);
1844 m = gklass->vtable [offset];
1846 m = mono_class_inflate_generic_method_full (m, class, mono_class_get_context (class));
1848 mono_class_setup_vtable (class);
1849 m = class->vtable [offset];
1856 * mono_class_get_vtable_size:
1858 * Return the vtable size for KLASS.
1861 mono_class_get_vtable_size (MonoClass *klass)
1863 mono_class_setup_vtable (klass);
1865 return klass->vtable_size;
1869 mono_class_setup_properties (MonoClass *class)
1871 guint startm, endm, i, j;
1872 guint32 cols [MONO_PROPERTY_SIZE];
1873 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1874 MonoProperty *properties;
1877 if (class->ext && class->ext->properties)
1880 mono_loader_lock ();
1882 if (class->ext && class->ext->properties) {
1883 mono_loader_unlock ();
1887 mono_class_alloc_ext (class);
1889 if (class->generic_class) {
1890 MonoClass *gklass = class->generic_class->container_class;
1892 mono_class_init (gklass);
1893 mono_class_setup_properties (gklass);
1895 class->ext->property = gklass->ext->property;
1897 properties = g_new0 (MonoProperty, class->ext->property.count + 1);
1899 for (i = 0; i < class->ext->property.count; i++) {
1900 MonoProperty *prop = &properties [i];
1902 *prop = gklass->ext->properties [i];
1905 prop->get = mono_class_inflate_generic_method_full (
1906 prop->get, class, mono_class_get_context (class));
1908 prop->set = mono_class_inflate_generic_method_full (
1909 prop->set, class, mono_class_get_context (class));
1911 prop->parent = class;
1914 class->ext->property.first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1915 class->ext->property.count = last - class->ext->property.first;
1917 if (class->ext->property.count)
1918 mono_class_setup_methods (class);
1920 properties = mono_image_alloc0 (class->image, sizeof (MonoProperty) * class->ext->property.count);
1921 for (i = class->ext->property.first; i < last; ++i) {
1922 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
1923 properties [i - class->ext->property.first].parent = class;
1924 properties [i - class->ext->property.first].attrs = cols [MONO_PROPERTY_FLAGS];
1925 properties [i - class->ext->property.first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
1927 startm = mono_metadata_methods_from_property (class->image, i, &endm);
1928 for (j = startm; j < endm; ++j) {
1931 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1933 if (class->image->uncompressed_metadata)
1934 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1935 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1937 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1939 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1940 case METHOD_SEMANTIC_SETTER:
1941 properties [i - class->ext->property.first].set = method;
1943 case METHOD_SEMANTIC_GETTER:
1944 properties [i - class->ext->property.first].get = method;
1952 /*Flush any pending writes as we do double checked locking on class->properties */
1953 mono_memory_barrier ();
1955 /* Leave this assignment as the last op in the function */
1956 class->ext->properties = properties;
1958 mono_loader_unlock ();
1962 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
1964 MonoMethod **om, **retval;
1967 for (om = methods, count = 0; *om; ++om, ++count)
1970 retval = g_new0 (MonoMethod*, count + 1);
1972 for (om = methods, count = 0; *om; ++om, ++count)
1973 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
1979 mono_class_setup_events (MonoClass *class)
1981 guint startm, endm, i, j;
1982 guint32 cols [MONO_EVENT_SIZE];
1983 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1987 if (class->ext && class->ext->events)
1990 mono_loader_lock ();
1992 if (class->ext && class->ext->events) {
1993 mono_loader_unlock ();
1997 mono_class_alloc_ext (class);
1999 if (class->generic_class) {
2000 MonoClass *gklass = class->generic_class->container_class;
2001 MonoGenericContext *context;
2003 mono_class_setup_events (gklass);
2004 class->ext->event = gklass->ext->event;
2006 class->ext->events = g_new0 (MonoEvent, class->ext->event.count);
2008 if (class->ext->event.count)
2009 context = mono_class_get_context (class);
2011 for (i = 0; i < class->ext->event.count; i++) {
2012 MonoEvent *event = &class->ext->events [i];
2013 MonoEvent *gevent = &gklass->ext->events [i];
2015 event->parent = class;
2016 event->name = gevent->name;
2017 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
2018 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
2019 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
2020 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
2021 event->attrs = gevent->attrs;
2024 mono_loader_unlock ();
2028 class->ext->event.first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2029 class->ext->event.count = last - class->ext->event.first;
2031 if (class->ext->event.count)
2032 mono_class_setup_methods (class);
2034 events = mono_image_alloc0 (class->image, sizeof (MonoEvent) * class->ext->event.count);
2035 for (i = class->ext->event.first; i < last; ++i) {
2036 MonoEvent *event = &events [i - class->ext->event.first];
2038 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
2039 event->parent = class;
2040 event->attrs = cols [MONO_EVENT_FLAGS];
2041 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
2043 startm = mono_metadata_methods_from_event (class->image, i, &endm);
2044 for (j = startm; j < endm; ++j) {
2047 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2049 if (class->image->uncompressed_metadata)
2050 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2051 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2053 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2055 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2056 case METHOD_SEMANTIC_ADD_ON:
2057 event->add = method;
2059 case METHOD_SEMANTIC_REMOVE_ON:
2060 event->remove = method;
2062 case METHOD_SEMANTIC_FIRE:
2063 event->raise = method;
2065 case METHOD_SEMANTIC_OTHER: {
2068 if (event->other == NULL) {
2069 event->other = g_new0 (MonoMethod*, 2);
2071 while (event->other [n])
2073 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
2075 event->other [n] = method;
2076 /* NULL terminated */
2077 event->other [n + 1] = NULL;
2085 /*Flush any pending writes as we do double checked locking on class->properties */
2086 mono_memory_barrier ();
2088 /* Leave this assignment as the last op in the function */
2089 class->ext->events = events;
2091 mono_loader_unlock ();
2095 * Global pool of interface IDs, represented as a bitset.
2096 * LOCKING: this is supposed to be accessed with the loader lock held.
2098 static MonoBitSet *global_interface_bitset = NULL;
2101 * mono_unload_interface_ids:
2102 * @bitset: bit set of interface IDs
2104 * When an image is unloaded, the interface IDs associated with
2105 * the image are put back in the global pool of IDs so the numbers
2109 mono_unload_interface_ids (MonoBitSet *bitset)
2111 mono_loader_lock ();
2112 mono_bitset_sub (global_interface_bitset, bitset);
2113 mono_loader_unlock ();
2117 * mono_get_unique_iid:
2120 * Assign a unique integer ID to the interface represented by @class.
2121 * The ID will positive and as small as possible.
2122 * LOCKING: this is supposed to be called with the loader lock held.
2123 * Returns: the new ID.
2126 mono_get_unique_iid (MonoClass *class)
2130 g_assert (MONO_CLASS_IS_INTERFACE (class));
2132 if (!global_interface_bitset) {
2133 global_interface_bitset = mono_bitset_new (128, 0);
2136 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2138 int old_size = mono_bitset_size (global_interface_bitset);
2139 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2140 mono_bitset_free (global_interface_bitset);
2141 global_interface_bitset = new_set;
2144 mono_bitset_set (global_interface_bitset, iid);
2145 /* set the bit also in the per-image set */
2146 if (class->image->interface_bitset) {
2147 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2148 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2149 mono_bitset_free (class->image->interface_bitset);
2150 class->image->interface_bitset = new_set;
2153 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2155 mono_bitset_set (class->image->interface_bitset, iid);
2157 if (mono_print_vtable) {
2159 char *type_name = mono_type_full_name (&class->byval_arg);
2160 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2161 generic_id = class->generic_class->context.class_inst->id;
2162 g_assert (generic_id != 0);
2166 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2170 g_assert (iid <= 65535);
2175 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res)
2180 mono_class_setup_interfaces (klass);
2182 for (i = 0; i < klass->interface_count; i++) {
2183 ic = klass->interfaces [i];
2186 *res = g_ptr_array_new ();
2187 g_ptr_array_add (*res, ic);
2188 mono_class_init (ic);
2190 collect_implemented_interfaces_aux (ic, res);
2195 mono_class_get_implemented_interfaces (MonoClass *klass)
2197 GPtrArray *res = NULL;
2199 collect_implemented_interfaces_aux (klass, &res);
2204 compare_interface_ids (const void *p_key, const void *p_element) {
2205 const MonoClass *key = p_key;
2206 const MonoClass *element = *(MonoClass**) p_element;
2208 return (key->interface_id - element->interface_id);
2212 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2213 MonoClass **result = bsearch (
2215 klass->interfaces_packed,
2216 klass->interface_offsets_count,
2217 sizeof (MonoClass *),
2218 compare_interface_ids);
2220 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2227 print_implemented_interfaces (MonoClass *klass) {
2228 GPtrArray *ifaces = NULL;
2230 int ancestor_level = 0;
2232 printf ("Packed interface table for class %s has size %d\n", klass->name, klass->interface_offsets_count);
2233 for (i = 0; i < klass->interface_offsets_count; i++)
2234 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2235 klass->interfaces_packed [i]->interface_id,
2236 klass->interface_offsets_packed [i],
2237 klass->interfaces_packed [i]->method.count,
2238 klass->interfaces_packed [i]->name_space,
2239 klass->interfaces_packed [i]->name );
2240 printf ("Interface flags: ");
2241 for (i = 0; i <= klass->max_interface_id; i++)
2242 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2243 printf ("(%d,T)", i);
2245 printf ("(%d,F)", i);
2247 printf ("Dump interface flags:");
2248 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2249 printf (" %02X", klass->interface_bitmap [i]);
2251 while (klass != NULL) {
2252 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2253 ifaces = mono_class_get_implemented_interfaces (klass);
2255 for (i = 0; i < ifaces->len; i++) {
2256 MonoClass *ic = g_ptr_array_index (ifaces, i);
2257 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2258 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2260 mono_class_interface_offset (klass, ic),
2265 g_ptr_array_free (ifaces, TRUE);
2268 klass = klass->parent;
2273 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2276 args [0] = &arg0->byval_arg;
2278 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2282 array_class_get_if_rank (MonoClass *class, guint rank)
2284 return rank ? mono_array_class_get (class, rank) : class;
2288 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2290 valuetype_types [0] = eclass;
2291 if (eclass == mono_defaults.int16_class)
2292 valuetype_types [1] = mono_defaults.uint16_class;
2293 else if (eclass == mono_defaults.uint16_class)
2294 valuetype_types [1] = mono_defaults.int16_class;
2295 else if (eclass == mono_defaults.int32_class)
2296 valuetype_types [1] = mono_defaults.uint32_class;
2297 else if (eclass == mono_defaults.uint32_class)
2298 valuetype_types [1] = mono_defaults.int32_class;
2299 else if (eclass == mono_defaults.int64_class)
2300 valuetype_types [1] = mono_defaults.uint64_class;
2301 else if (eclass == mono_defaults.uint64_class)
2302 valuetype_types [1] = mono_defaults.int64_class;
2303 else if (eclass == mono_defaults.byte_class)
2304 valuetype_types [1] = mono_defaults.sbyte_class;
2305 else if (eclass == mono_defaults.sbyte_class)
2306 valuetype_types [1] = mono_defaults.byte_class;
2307 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2308 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2311 /* this won't be needed once bug #325495 is completely fixed
2312 * though we'll need something similar to know which interfaces to allow
2313 * in arrays when they'll be lazyly created
2315 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2316 * MS returns diferrent types based on which instance is called. For example:
2317 * object obj = new byte[10][];
2318 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2319 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2322 * Fixing this should kill quite some code, save some bits and improve compatibility.
2325 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2327 MonoClass *eclass = class->element_class;
2328 static MonoClass* generic_icollection_class = NULL;
2329 static MonoClass* generic_ienumerable_class = NULL;
2330 static MonoClass* generic_ienumerator_class = NULL;
2331 MonoClass *valuetype_types[2] = { NULL, NULL };
2332 MonoClass **interfaces = NULL;
2333 int i, interface_count, real_count, original_rank;
2335 gboolean internal_enumerator;
2336 gboolean eclass_is_valuetype;
2338 if (!mono_defaults.generic_ilist_class) {
2342 internal_enumerator = FALSE;
2343 eclass_is_valuetype = FALSE;
2344 original_rank = eclass->rank;
2345 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2346 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2348 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2350 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2351 original_rank = eclass->rank;
2352 eclass = eclass->element_class;
2353 internal_enumerator = TRUE;
2354 *is_enumerator = TRUE;
2362 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2363 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2365 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2367 if (!generic_icollection_class) {
2368 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2369 "System.Collections.Generic", "ICollection`1");
2370 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2371 "System.Collections.Generic", "IEnumerable`1");
2372 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2373 "System.Collections.Generic", "IEnumerator`1");
2376 mono_class_init (eclass);
2379 * Arrays in 2.0 need to implement a number of generic interfaces
2380 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2381 * on the element class). We collect the types needed to build the
2382 * instantiations in interfaces at intervals of 3, because 3 are
2383 * the generic interfaces needed to implement.
2385 if (eclass->valuetype) {
2386 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2388 /* IList, ICollection, IEnumerable */
2389 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2390 if (internal_enumerator) {
2392 if (valuetype_types [1])
2396 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2397 interfaces [0] = valuetype_types [0];
2398 if (valuetype_types [1])
2399 interfaces [3] = valuetype_types [1];
2401 eclass_is_valuetype = TRUE;
2404 int idepth = eclass->idepth;
2405 if (!internal_enumerator)
2407 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2408 /* we add object for interfaces and the supertypes for the other
2409 * types. The last of the supertypes is the element class itself which we
2410 * already created the explicit interfaces for (so we include it for IEnumerator
2411 * and exclude it for arrays).
2413 if (MONO_CLASS_IS_INTERFACE (eclass))
2416 interface_count += idepth;
2417 if (eclass->rank && eclass->element_class->valuetype) {
2418 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2419 if (valuetype_types [1])
2422 /* IList, ICollection, IEnumerable */
2423 interface_count *= 3;
2424 real_count = interface_count;
2425 if (internal_enumerator) {
2426 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2427 if (valuetype_types [1])
2430 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2431 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2432 interfaces [0] = mono_defaults.object_class;
2436 for (i = 0; i < idepth; i++) {
2437 mono_class_init (eclass->supertypes [i]);
2438 interfaces [j] = eclass->supertypes [i];
2442 if (all_interfaces) {
2443 for (i = 0; i < eclass->interface_offsets_count; i++) {
2444 interfaces [j] = eclass->interfaces_packed [i];
2448 for (i = 0; i < eclass->interface_count; i++) {
2449 interfaces [j] = eclass->interfaces [i];
2453 if (valuetype_types [1]) {
2454 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2459 /* instantiate the generic interfaces */
2460 for (i = 0; i < interface_count; i += 3) {
2461 MonoClass *iface = interfaces [i];
2463 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2464 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2465 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2467 if (internal_enumerator) {
2469 /* instantiate IEnumerator<iface> */
2470 for (i = 0; i < interface_count; i++) {
2471 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2473 j = interface_count;
2474 if (!eclass_is_valuetype) {
2475 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2476 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2479 for (i = 0; i < eclass->idepth; i++) {
2480 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2484 for (i = 0; i < eclass->interface_offsets_count; i++) {
2485 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2489 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2491 if (valuetype_types [1])
2492 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2496 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2497 for (i = 0; i < real_count; ++i) {
2498 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2499 g_print ("%s implements %s\n", type_name, name);
2510 find_array_interface (MonoClass *klass, const char *name)
2513 for (i = 0; i < klass->interface_count; ++i) {
2514 if (strcmp (klass->interfaces [i]->name, name) == 0)
2521 * Return the number of virtual methods.
2522 * Even for interfaces we can't simply return the number of methods as all CLR types are allowed to have static methods.
2523 * FIXME It would be nice if this information could be cached somewhere.
2526 count_virtual_methods (MonoClass *class)
2530 class = mono_class_get_generic_type_definition (class); /*We can find this information by looking at the GTD*/
2532 if (class->methods || !MONO_CLASS_HAS_STATIC_METADATA (class)) {
2533 mono_class_setup_methods (class);
2535 for (i = 0; i < class->method.count; ++i) {
2536 flags = class->methods [i]->flags;
2537 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2541 for (i = 0; i < class->method.count; ++i) {
2542 flags = mono_metadata_decode_table_row_col (class->image, MONO_TABLE_METHOD, class->method.first + i, MONO_METHOD_FLAGS);
2544 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2552 * LOCKING: this is supposed to be called with the loader lock held.
2555 setup_interface_offsets (MonoClass *class, int cur_slot)
2559 MonoClass **interfaces_full;
2560 int *interface_offsets_full;
2562 int interface_offsets_count;
2563 MonoClass **array_interfaces;
2564 int num_array_interfaces;
2565 int is_enumerator = FALSE;
2568 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
2569 * implicit interfaces have the property that they are assigned the same slot in the
2570 * vtables for compatible interfaces
2572 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
2574 /* compute maximum number of slots and maximum interface id */
2576 for (k = class; k ; k = k->parent) {
2577 for (i = 0; i < k->interface_count; i++) {
2578 ic = k->interfaces [i];
2581 mono_class_init (ic);
2583 if (max_iid < ic->interface_id)
2584 max_iid = ic->interface_id;
2586 ifaces = mono_class_get_implemented_interfaces (k);
2588 for (i = 0; i < ifaces->len; ++i) {
2589 ic = g_ptr_array_index (ifaces, i);
2590 if (max_iid < ic->interface_id)
2591 max_iid = ic->interface_id;
2593 g_ptr_array_free (ifaces, TRUE);
2596 for (i = 0; i < num_array_interfaces; ++i) {
2597 ic = array_interfaces [i];
2598 mono_class_init (ic);
2599 if (max_iid < ic->interface_id)
2600 max_iid = ic->interface_id;
2603 if (MONO_CLASS_IS_INTERFACE (class)) {
2604 if (max_iid < class->interface_id)
2605 max_iid = class->interface_id;
2607 class->max_interface_id = max_iid;
2608 /* compute vtable offset for interfaces */
2609 interfaces_full = g_malloc (sizeof (MonoClass*) * (max_iid + 1));
2610 interface_offsets_full = g_malloc (sizeof (int) * (max_iid + 1));
2612 for (i = 0; i <= max_iid; i++) {
2613 interfaces_full [i] = NULL;
2614 interface_offsets_full [i] = -1;
2617 for (k = class->parent; k ; k = k->parent) {
2618 ifaces = mono_class_get_implemented_interfaces (k);
2620 for (i = 0; i < ifaces->len; ++i) {
2622 ic = g_ptr_array_index (ifaces, i);
2624 /*Force the sharing of interface offsets between parent and subtypes.*/
2625 io = mono_class_interface_offset (k, ic);
2627 interfaces_full [ic->interface_id] = ic;
2628 interface_offsets_full [ic->interface_id] = io;
2630 g_ptr_array_free (ifaces, TRUE);
2635 ifaces = mono_class_get_implemented_interfaces (class);
2637 for (i = 0; i < ifaces->len; ++i) {
2638 ic = g_ptr_array_index (ifaces, i);
2639 if (interfaces_full [ic->interface_id] != NULL)
2641 interfaces_full [ic->interface_id] = ic;
2642 interface_offsets_full [ic->interface_id] = cur_slot;
2643 cur_slot += count_virtual_methods (ic);
2645 g_ptr_array_free (ifaces, TRUE);
2648 if (MONO_CLASS_IS_INTERFACE (class)) {
2649 interfaces_full [class->interface_id] = class;
2650 interface_offsets_full [class->interface_id] = cur_slot;
2653 if (num_array_interfaces) {
2654 if (is_enumerator) {
2655 int ienumerator_offset;
2656 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
2657 ienumerator_offset = interface_offsets_full [class->interfaces [ienumerator_idx]->interface_id];
2658 for (i = 0; i < num_array_interfaces; ++i) {
2659 ic = array_interfaces [i];
2660 interfaces_full [ic->interface_id] = ic;
2661 if (strcmp (ic->name, "IEnumerator`1") == 0)
2662 interface_offsets_full [ic->interface_id] = ienumerator_offset;
2664 g_assert_not_reached ();
2665 /*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);*/
2668 int ilist_offset, icollection_offset, ienumerable_offset;
2669 int ilist_iface_idx = find_array_interface (class, "IList`1");
2670 int icollection_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "ICollection`1");
2671 int ienumerable_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "IEnumerable`1");
2672 ilist_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interface_id];
2673 icollection_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [icollection_iface_idx]->interface_id];
2674 ienumerable_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [ienumerable_iface_idx]->interface_id];
2675 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
2676 for (i = 0; i < num_array_interfaces; ++i) {
2677 ic = array_interfaces [i];
2678 interfaces_full [ic->interface_id] = ic;
2679 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
2680 interface_offsets_full [ic->interface_id] = ilist_offset;
2681 else if (strcmp (ic->name, "ICollection`1") == 0)
2682 interface_offsets_full [ic->interface_id] = icollection_offset;
2683 else if (strcmp (ic->name, "IEnumerable`1") == 0)
2684 interface_offsets_full [ic->interface_id] = ienumerable_offset;
2686 g_assert_not_reached ();
2687 /*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);*/
2692 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2693 if (interface_offsets_full [i] != -1) {
2694 interface_offsets_count ++;
2699 * We might get called twice: once from mono_class_init () then once from
2700 * mono_class_setup_vtable ().
2702 if (class->interfaces_packed) {
2703 g_assert (class->interface_offsets_count == interface_offsets_count);
2705 class->interface_offsets_count = interface_offsets_count;
2706 class->interfaces_packed = mono_image_alloc (class->image, sizeof (MonoClass*) * interface_offsets_count);
2707 class->interface_offsets_packed = mono_image_alloc (class->image, sizeof (guint16) * interface_offsets_count);
2708 class->interface_bitmap = mono_image_alloc0 (class->image, (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0));
2709 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2710 if (interface_offsets_full [i] != -1) {
2711 class->interface_bitmap [i >> 3] |= (1 << (i & 7));
2712 class->interfaces_packed [interface_offsets_count] = interfaces_full [i];
2713 class->interface_offsets_packed [interface_offsets_count] = interface_offsets_full [i];
2714 /*if (num_array_interfaces)
2715 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]);*/
2716 interface_offsets_count ++;
2721 g_free (interfaces_full);
2722 g_free (interface_offsets_full);
2723 g_free (array_interfaces);
2725 //printf ("JUST DONE: ");
2726 //print_implemented_interfaces (class);
2732 * Setup interface offsets for interfaces.
2734 * - class->max_interface_id
2735 * - class->interface_offsets_count
2736 * - class->interfaces_packed
2737 * - class->interface_offsets_packed
2738 * - class->interface_bitmap
2741 mono_class_setup_interface_offsets (MonoClass *class)
2743 mono_loader_lock ();
2745 setup_interface_offsets (class, 0);
2747 mono_loader_unlock ();
2751 * mono_class_setup_vtable:
2753 * Creates the generic vtable of CLASS.
2754 * Initializes the following fields in MonoClass:
2757 * Plus all the fields initialized by setup_interface_offsets ().
2758 * If there is an error during vtable construction, class->exception_type is set.
2760 * LOCKING: Acquires the loader lock.
2763 mono_class_setup_vtable (MonoClass *class)
2765 MonoMethod **overrides;
2766 MonoGenericContext *context;
2775 if (mono_debug_using_mono_debugger ())
2776 /* The debugger currently depends on this */
2777 mono_class_setup_methods (class);
2779 if (MONO_CLASS_IS_INTERFACE (class)) {
2780 /* This sets method->slot for all methods if this is an interface */
2781 mono_class_setup_methods (class);
2785 mono_loader_lock ();
2787 if (class->vtable) {
2788 mono_loader_unlock ();
2792 mono_stats.generic_vtable_count ++;
2794 if (class->generic_class) {
2795 context = mono_class_get_context (class);
2796 type_token = class->generic_class->container_class->type_token;
2798 context = (MonoGenericContext *) class->generic_container;
2799 type_token = class->type_token;
2802 if (class->image->dynamic) {
2803 if (class->generic_class) {
2804 MonoClass *gklass = class->generic_class->container_class;
2806 mono_reflection_get_dynamic_overrides (gklass, &overrides, &onum);
2807 for (i = 0; i < onum; ++i) {
2808 MonoMethod *override = overrides [(i * 2) + 1];
2809 MonoMethod *inflated = NULL;
2812 for (j = 0; j < class->method.count; ++j) {
2813 if (gklass->methods [j] == override) {
2814 inflated = class->methods [j];
2818 g_assert (inflated);
2820 overrides [(i * 2) + 1] = inflated;
2823 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
2826 /* The following call fails if there are missing methods in the type */
2827 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
2831 mono_class_setup_vtable_general (class, overrides, onum);
2835 mono_loader_unlock ();
2840 #define DEBUG_INTERFACE_VTABLE_CODE 0
2841 #define TRACE_INTERFACE_VTABLE_CODE 0
2842 #define VERIFY_INTERFACE_VTABLE_CODE 0
2843 #define VTABLE_SELECTOR (1)
2845 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2846 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
2847 if (!(VTABLE_SELECTOR)) break; \
2851 #define DEBUG_INTERFACE_VTABLE(stmt)
2854 #if TRACE_INTERFACE_VTABLE_CODE
2855 #define TRACE_INTERFACE_VTABLE(stmt) do {\
2856 if (!(VTABLE_SELECTOR)) break; \
2860 #define TRACE_INTERFACE_VTABLE(stmt)
2863 #if VERIFY_INTERFACE_VTABLE_CODE
2864 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
2865 if (!(VTABLE_SELECTOR)) break; \
2869 #define VERIFY_INTERFACE_VTABLE(stmt)
2873 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2875 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
2879 GString *res = g_string_new ("");
2881 g_string_append_c (res, '(');
2882 for (i = 0; i < sig->param_count; ++i) {
2884 g_string_append_c (res, ',');
2885 mono_type_get_desc (res, sig->params [i], include_namespace);
2887 g_string_append (res, ")=>");
2888 if (sig->ret != NULL) {
2889 mono_type_get_desc (res, sig->ret, include_namespace);
2891 g_string_append (res, "NULL");
2894 g_string_free (res, FALSE);
2898 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
2899 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
2900 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
2901 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
2909 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) {
2910 if (strcmp (im->name, cm->name) == 0) {
2911 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
2912 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
2915 if (! slot_is_empty) {
2916 if (require_newslot) {
2917 if (! interface_is_explicitly_implemented_by_class) {
2918 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
2921 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2922 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
2926 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
2929 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2930 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
2931 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2932 TRACE_INTERFACE_VTABLE (printf ("]"));
2935 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
2936 /* CAS - SecurityAction.InheritanceDemand on interface */
2937 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2938 mono_secman_inheritancedemand_method (cm, im);
2941 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2942 mono_security_core_clr_check_override (class, cm, im);
2943 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
2946 MonoClass *ic = im->klass;
2947 const char *ic_name_space = ic->name_space;
2948 const char *ic_name = ic->name;
2951 if (! require_newslot) {
2952 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
2955 if (cm->klass->rank == 0) {
2956 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
2959 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2960 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
2961 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2962 TRACE_INTERFACE_VTABLE (printf ("]"));
2965 if (mono_class_get_image (ic) != mono_defaults.corlib) {
2966 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
2969 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
2970 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
2973 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
2974 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
2978 subname = strstr (cm->name, ic_name_space);
2979 if (subname != cm->name) {
2980 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
2983 subname += strlen (ic_name_space);
2984 if (subname [0] != '.') {
2985 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
2989 if (strstr (subname, ic_name) != subname) {
2990 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
2993 subname += strlen (ic_name);
2994 if (subname [0] != '.') {
2995 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
2999 if (strcmp (subname, im->name) != 0) {
3000 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
3004 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
3005 /* CAS - SecurityAction.InheritanceDemand on interface */
3006 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3007 mono_secman_inheritancedemand_method (cm, im);
3010 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3011 mono_security_core_clr_check_override (class, cm, im);
3013 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
3018 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3020 foreach_override (gpointer key, gpointer value, gpointer user_data) {
3021 MonoMethod *method = key;
3022 MonoMethod *override = value;
3023 MonoClass *method_class = mono_method_get_class (method);
3024 MonoClass *override_class = mono_method_get_class (override);
3026 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
3027 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
3028 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
3031 print_overrides (GHashTable *override_map, const char *message) {
3033 printf ("Override map \"%s\" START:\n", message);
3034 g_hash_table_foreach (override_map, foreach_override, NULL);
3035 printf ("Override map \"%s\" END.\n", message);
3037 printf ("Override map \"%s\" EMPTY.\n", message);
3041 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
3042 char *full_name = mono_type_full_name (&class->byval_arg);
3046 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
3048 if (print_interfaces) {
3049 print_implemented_interfaces (class);
3050 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
3053 if (class->parent) {
3054 parent_size = class->parent->vtable_size;
3058 for (i = 0; i < size; ++i) {
3059 MonoMethod *cm = vtable [i];
3061 char *cm_name = mono_method_full_name (cm, TRUE);
3062 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
3063 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
3072 #if VERIFY_INTERFACE_VTABLE_CODE
3074 mono_method_try_get_vtable_index (MonoMethod *method)
3076 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3077 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3078 if (imethod->declaring->is_generic)
3079 return imethod->declaring->slot;
3081 return method->slot;
3085 mono_class_verify_vtable (MonoClass *class)
3088 char *full_name = mono_type_full_name (&class->byval_arg);
3090 printf ("*** Verifying VTable of class '%s' \n", full_name);
3094 if (!class->methods)
3097 for (i = 0; i < class->method.count; ++i) {
3098 MonoMethod *cm = class->methods [i];
3101 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3105 full_name = mono_method_full_name (cm, TRUE);
3107 slot = mono_method_try_get_vtable_index (cm);
3109 if (slot >= class->vtable_size) {
3110 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
3114 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot])) {
3115 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
3116 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
3117 g_free (other_name);
3120 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
3127 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
3129 char *method_signature;
3132 for (index = 0; index < onum; ++index) {
3133 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
3134 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
3136 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
3137 type_name = mono_type_full_name (&class->byval_arg);
3138 printf ("no implementation for interface method %s::%s(%s) in class %s\n",
3139 mono_type_get_name (&ic->byval_arg), im->name, method_signature, type_name);
3140 g_free (method_signature);
3142 mono_class_setup_methods (class);
3143 for (index = 0; index < class->method.count; ++index) {
3144 MonoMethod *cm = class->methods [index];
3145 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3147 printf ("METHOD %s(%s)\n", cm->name, method_signature);
3148 g_free (method_signature);
3153 verify_class_overrides (MonoClass *class, MonoMethod **overrides, int onum)
3157 for (i = 0; i < onum; ++i) {
3158 MonoMethod *decl = overrides [i * 2];
3159 MonoMethod *body = overrides [i * 2 + 1];
3161 if (mono_class_get_generic_type_definition (body->klass) != mono_class_get_generic_type_definition (class)) {
3162 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method belongs to a different class than the declared one"));
3166 if (!(body->flags & METHOD_ATTRIBUTE_VIRTUAL) || (body->flags & METHOD_ATTRIBUTE_STATIC)) {
3167 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3168 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must not be static to override a base type"));
3170 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must be virtual to override a base type"));
3174 if (!(decl->flags & METHOD_ATTRIBUTE_VIRTUAL) || (decl->flags & METHOD_ATTRIBUTE_STATIC)) {
3175 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3176 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a static method in a base type"));
3178 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a non virtual method in a base type"));
3182 if (!mono_class_is_assignable_from_slow (decl->klass, class)) {
3183 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method overrides a class or interface that extended or implemented by this type"));
3190 * LOCKING: this is supposed to be called with the loader lock held.
3193 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
3196 MonoMethod **vtable;
3197 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3198 GPtrArray *ifaces = NULL;
3199 GHashTable *override_map = NULL;
3200 gboolean security_enabled = mono_is_security_manager_active ();
3202 gpointer class_iter;
3203 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3204 int first_non_interface_slot;
3210 if (overrides && !verify_class_overrides (class, overrides, onum))
3213 ifaces = mono_class_get_implemented_interfaces (class);
3216 for (i = 0; i < ifaces->len; i++) {
3217 MonoClass *ic = g_ptr_array_index (ifaces, i);
3218 max_vtsize += ic->method.count;
3220 g_ptr_array_free (ifaces, TRUE);
3224 if (class->parent) {
3225 mono_class_init (class->parent);
3226 mono_class_setup_vtable (class->parent);
3227 max_vtsize += class->parent->vtable_size;
3228 cur_slot = class->parent->vtable_size;
3231 max_vtsize += class->method.count;
3233 vtable = alloca (sizeof (gpointer) * max_vtsize);
3234 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
3236 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3238 cur_slot = setup_interface_offsets (class, cur_slot);
3239 max_iid = class->max_interface_id;
3240 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
3242 /* Optimized version for generic instances */
3243 if (class->generic_class) {
3244 MonoClass *gklass = class->generic_class->container_class;
3247 mono_class_setup_vtable (gklass);
3248 if (gklass->exception_type != MONO_EXCEPTION_NONE) {
3249 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3253 tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * gklass->vtable_size);
3254 class->vtable_size = gklass->vtable_size;
3255 for (i = 0; i < gklass->vtable_size; ++i)
3256 if (gklass->vtable [i]) {
3257 tmp [i] = mono_class_inflate_generic_method_full (gklass->vtable [i], class, mono_class_get_context (class));
3258 tmp [i]->slot = gklass->vtable [i]->slot;
3260 mono_memory_barrier ();
3261 class->vtable = tmp;
3263 /* Have to set method->slot for abstract virtual methods */
3264 if (class->methods && gklass->methods) {
3265 for (i = 0; i < class->method.count; ++i)
3266 if (class->methods [i]->slot == -1)
3267 class->methods [i]->slot = gklass->methods [i]->slot;
3273 if (class->parent && class->parent->vtable_size) {
3274 MonoClass *parent = class->parent;
3277 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
3279 // Also inherit parent interface vtables, just as a starting point.
3280 // This is needed otherwise bug-77127.exe fails when the property methods
3281 // have different names in the iterface and the class, because for child
3282 // classes the ".override" information is not used anymore.
3283 for (i = 0; i < parent->interface_offsets_count; i++) {
3284 MonoClass *parent_interface = parent->interfaces_packed [i];
3285 int interface_offset = mono_class_interface_offset (class, parent_interface);
3287 if (interface_offset >= parent->vtable_size) {
3288 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
3291 mono_class_setup_methods (parent_interface);
3292 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
3293 for (j = 0; j < parent_interface->method.count; j++) {
3294 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
3295 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
3296 parent_interface_offset + j, parent_interface_offset, j,
3297 interface_offset + j, interface_offset, j));
3304 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
3305 /* override interface methods */
3306 for (i = 0; i < onum; i++) {
3307 MonoMethod *decl = overrides [i*2];
3308 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
3310 dslot = mono_method_get_vtable_slot (decl) + mono_class_interface_offset (class, decl->klass);
3311 vtable [dslot] = overrides [i*2 + 1];
3312 vtable [dslot]->slot = dslot;
3314 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3316 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
3318 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3319 mono_security_core_clr_check_override (class, vtable [dslot], decl);
3322 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
3323 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
3325 // Loop on all implemented interfaces...
3326 for (i = 0; i < class->interface_offsets_count; i++) {
3327 MonoClass *parent = class->parent;
3329 gboolean interface_is_explicitly_implemented_by_class;
3332 ic = class->interfaces_packed [i];
3333 ic_offset = mono_class_interface_offset (class, ic);
3335 mono_class_setup_methods (ic);
3337 // Check if this interface is explicitly implemented (instead of just inherited)
3338 if (parent != NULL) {
3339 int implemented_interfaces_index;
3340 interface_is_explicitly_implemented_by_class = FALSE;
3341 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
3342 if (ic == class->interfaces [implemented_interfaces_index]) {
3343 interface_is_explicitly_implemented_by_class = TRUE;
3348 interface_is_explicitly_implemented_by_class = TRUE;
3351 // Loop on all interface methods...
3352 for (im_index = 0; im_index < ic->method.count; im_index++) {
3353 MonoMethod *im = ic->methods [im_index];
3354 int im_slot = ic_offset + im->slot;
3355 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
3357 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3360 // If there is an explicit implementation, just use it right away,
3361 // otherwise look for a matching method
3362 if (override_im == NULL) {
3367 // First look for a suitable method among the class methods
3369 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
3370 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)));
3371 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
3372 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
3373 vtable [im_slot] = cm;
3374 /* Why do we need this? */
3379 TRACE_INTERFACE_VTABLE (printf ("\n"));
3382 // If the slot is still empty, look in all the inherited virtual methods...
3383 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
3384 MonoClass *parent = class->parent;
3385 // Reverse order, so that last added methods are preferred
3386 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
3387 MonoMethod *cm = parent->vtable [cm_index];
3389 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));
3390 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
3391 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
3392 vtable [im_slot] = cm;
3393 /* Why do we need this? */
3399 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
3403 g_assert (vtable [im_slot] == override_im);
3408 // If the class is not abstract, check that all its interface slots are full.
3409 // The check is done here and not directly at the end of the loop above because
3410 // it can happen (for injected generic array interfaces) that the same slot is
3411 // processed multiple times (those interfaces have overlapping slots), and it
3412 // will not always be the first pass the one that fills the slot.
3413 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3414 for (i = 0; i < class->interface_offsets_count; i++) {
3418 ic = class->interfaces_packed [i];
3419 ic_offset = mono_class_interface_offset (class, ic);
3421 for (im_index = 0; im_index < ic->method.count; im_index++) {
3422 MonoMethod *im = ic->methods [im_index];
3423 int im_slot = ic_offset + im->slot;
3425 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3428 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
3429 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
3430 if (vtable [im_slot] == NULL) {
3431 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
3432 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3434 g_hash_table_destroy (override_map);
3441 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
3443 while ((cm = mono_class_get_virtual_methods (class, &class_iter))) {
3445 * If the method is REUSE_SLOT, we must check in the
3446 * base class for a method to override.
3448 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3450 for (k = class->parent; k ; k = k->parent) {
3455 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
3456 MonoMethodSignature *cmsig, *m1sig;
3458 cmsig = mono_method_signature (cm);
3459 m1sig = mono_method_signature (m1);
3461 if (!cmsig || !m1sig) {
3462 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3466 if (!strcmp(cm->name, m1->name) &&
3467 mono_metadata_signature_equal (cmsig, m1sig)) {
3469 /* CAS - SecurityAction.InheritanceDemand */
3470 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3471 mono_secman_inheritancedemand_method (cm, m1);
3474 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3475 mono_security_core_clr_check_override (class, cm, m1);
3477 slot = mono_method_get_vtable_slot (m1);
3478 g_assert (cm->slot < max_vtsize);
3480 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3481 g_hash_table_insert (override_map, m1, cm);
3492 /*Non final newslot methods must be given a non-interface vtable slot*/
3493 if ((cm->flags & METHOD_ATTRIBUTE_NEW_SLOT) && !(cm->flags & METHOD_ATTRIBUTE_FINAL) && cm->slot >= 0)
3497 cm->slot = cur_slot++;
3499 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
3500 vtable [cm->slot] = cm;
3503 /* override non interface methods */
3504 for (i = 0; i < onum; i++) {
3505 MonoMethod *decl = overrides [i*2];
3506 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
3507 g_assert (decl->slot != -1);
3508 vtable [decl->slot] = overrides [i*2 + 1];
3509 overrides [i * 2 + 1]->slot = decl->slot;
3511 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3512 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
3514 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3515 mono_security_core_clr_check_override (class, vtable [decl->slot], decl);
3520 * If a method occupies more than one place in the vtable, and it is
3521 * overriden, then change the other occurances too.
3524 for (i = 0; i < max_vtsize; ++i)
3526 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
3531 g_hash_table_destroy (override_map);
3534 /* Ensure that all vtable slots are filled with concrete instance methods */
3535 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3536 for (i = 0; i < cur_slot; ++i) {
3537 if (vtable [i] == NULL || (vtable [i]->flags & (METHOD_ATTRIBUTE_ABSTRACT | METHOD_ATTRIBUTE_STATIC))) {
3538 char *type_name = mono_type_get_full_name (class);
3539 char *method_name = vtable [i] ? mono_method_full_name (vtable [i], TRUE) : g_strdup ("none");
3540 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Type %s has invalid vtable method slot %d with method %s", type_name, i, method_name));
3542 g_free (method_name);
3548 if (class->generic_class) {
3549 MonoClass *gklass = class->generic_class->container_class;
3551 mono_class_init (gklass);
3553 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
3555 /* Check that the vtable_size value computed in mono_class_init () is correct */
3556 if (class->vtable_size)
3557 g_assert (cur_slot == class->vtable_size);
3558 class->vtable_size = cur_slot;
3561 /* Try to share the vtable with our parent. */
3562 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
3563 mono_memory_barrier ();
3564 class->vtable = class->parent->vtable;
3566 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * class->vtable_size);
3567 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
3568 mono_memory_barrier ();
3569 class->vtable = tmp;
3572 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
3573 if (mono_print_vtable) {
3576 print_implemented_interfaces (class);
3578 for (i = 0; i <= max_iid; i++)
3579 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
3582 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
3583 class->vtable_size, icount);
3585 for (i = 0; i < class->vtable_size; ++i) {
3590 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
3591 mono_method_full_name (cm, TRUE));
3597 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
3598 class->name, max_iid);
3600 for (i = 0; i < class->interface_count; i++) {
3601 ic = class->interfaces [i];
3602 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3603 mono_class_interface_offset (class, ic),
3604 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3607 for (k = class->parent; k ; k = k->parent) {
3608 for (i = 0; i < k->interface_count; i++) {
3609 ic = k->interfaces [i];
3610 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3611 mono_class_interface_offset (class, ic),
3612 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3618 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
3622 * mono_method_get_vtable_slot:
3624 * Returns method->slot, computing it if neccesary.
3625 * LOCKING: Acquires the loader lock.
3628 mono_method_get_vtable_slot (MonoMethod *method)
3630 if (method->slot == -1) {
3631 mono_class_setup_vtable (method->klass);
3632 g_assert (method->slot != -1);
3634 return method->slot;
3638 * mono_method_get_vtable_index:
3641 * Returns the index into the runtime vtable to access the method or,
3642 * in the case of a virtual generic method, the virtual generic method
3646 mono_method_get_vtable_index (MonoMethod *method)
3648 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3649 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3650 if (imethod->declaring->is_generic)
3651 return mono_method_get_vtable_slot (imethod->declaring);
3653 return mono_method_get_vtable_slot (method);
3656 static MonoMethod *default_ghc = NULL;
3657 static MonoMethod *default_finalize = NULL;
3658 static int finalize_slot = -1;
3659 static int ghc_slot = -1;
3662 initialize_object_slots (MonoClass *class)
3667 if (class == mono_defaults.object_class) {
3668 mono_class_setup_vtable (class);
3669 for (i = 0; i < class->vtable_size; ++i) {
3670 MonoMethod *cm = class->vtable [i];
3672 if (!strcmp (cm->name, "GetHashCode"))
3674 else if (!strcmp (cm->name, "Finalize"))
3678 g_assert (ghc_slot > 0);
3679 default_ghc = class->vtable [ghc_slot];
3681 g_assert (finalize_slot > 0);
3682 default_finalize = class->vtable [finalize_slot];
3687 MonoMethod *array_method;
3689 } GenericArrayMethodInfo;
3691 static int generic_array_method_num = 0;
3692 static GenericArrayMethodInfo *generic_array_method_info = NULL;
3695 generic_array_methods (MonoClass *class)
3697 int i, count_generic = 0;
3698 GList *list = NULL, *tmp;
3699 if (generic_array_method_num)
3700 return generic_array_method_num;
3701 mono_class_setup_methods (class->parent);
3702 for (i = 0; i < class->parent->method.count; i++) {
3703 MonoMethod *m = class->parent->methods [i];
3704 if (!strncmp (m->name, "InternalArray__", 15)) {
3706 list = g_list_prepend (list, m);
3709 list = g_list_reverse (list);
3710 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
3712 for (tmp = list; tmp; tmp = tmp->next) {
3713 const char *mname, *iname;
3715 MonoMethod *m = tmp->data;
3716 generic_array_method_info [i].array_method = m;
3717 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
3718 iname = "System.Collections.Generic.ICollection`1.";
3719 mname = m->name + 27;
3720 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
3721 iname = "System.Collections.Generic.IEnumerable`1.";
3722 mname = m->name + 27;
3723 } else if (!strncmp (m->name, "InternalArray__", 15)) {
3724 iname = "System.Collections.Generic.IList`1.";
3725 mname = m->name + 15;
3727 g_assert_not_reached ();
3730 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
3731 strcpy (name, iname);
3732 strcpy (name + strlen (iname), mname);
3733 generic_array_method_info [i].name = name;
3736 /*g_print ("array generic methods: %d\n", count_generic);*/
3738 generic_array_method_num = count_generic;
3740 return generic_array_method_num;
3744 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
3746 MonoGenericContext tmp_context;
3749 tmp_context.class_inst = NULL;
3750 tmp_context.method_inst = iface->generic_class->context.class_inst;
3751 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
3753 for (i = 0; i < generic_array_method_num; i++) {
3754 MonoMethod *m = generic_array_method_info [i].array_method;
3755 MonoMethod *inflated;
3757 inflated = mono_class_inflate_generic_method (m, &tmp_context);
3758 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
3763 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
3765 int len = strlen (s1) + strlen (s2) + 2;
3766 char *s = mono_image_alloc (image, len);
3769 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
3770 g_assert (result == len - 1);
3776 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
3778 gpointer exception_data = NULL;
3780 switch (error->exception_type) {
3781 case MONO_EXCEPTION_TYPE_LOAD:
3782 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
3785 case MONO_EXCEPTION_MISSING_METHOD:
3786 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
3789 case MONO_EXCEPTION_MISSING_FIELD: {
3790 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
3791 const char *class_name;
3794 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
3796 class_name = error->klass->name;
3798 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
3801 g_free ((void*)class_name);
3805 case MONO_EXCEPTION_FILE_NOT_FOUND: {
3808 if (error->ref_only)
3809 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.";
3811 msg = "Could not load file or assembly '%s' or one of its dependencies.";
3813 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
3817 case MONO_EXCEPTION_BAD_IMAGE:
3818 exception_data = error->msg;
3822 g_assert_not_reached ();
3825 mono_class_set_failure (class, error->exception_type, exception_data);
3830 * @class: the class to initialize
3832 * Compute the instance_size, class_size and other infos that cannot be
3833 * computed at mono_class_get() time. Also compute vtable_size if possible.
3834 * Returns TRUE on success or FALSE if there was a problem in loading
3835 * the type (incorrect assemblies, missing assemblies, methods, etc).
3837 * LOCKING: Acquires the loader lock.
3840 mono_class_init (MonoClass *class)
3843 MonoCachedClassInfo cached_info;
3844 gboolean has_cached_info;
3845 int class_init_ok = TRUE;
3849 /* Double-checking locking pattern */
3851 return class->exception_type == MONO_EXCEPTION_NONE;
3853 /*g_print ("Init class %s\n", class->name);*/
3855 /* We do everything inside the lock to prevent races */
3856 mono_loader_lock ();
3858 if (class->inited) {
3859 mono_loader_unlock ();
3860 /* Somebody might have gotten in before us */
3861 return class->exception_type == MONO_EXCEPTION_NONE;
3864 if (class->init_pending) {
3865 mono_loader_unlock ();
3866 /* this indicates a cyclic dependency */
3867 g_error ("pending init %s.%s\n", class->name_space, class->name);
3870 class->init_pending = 1;
3872 if (class->byval_arg.type == MONO_TYPE_ARRAY || class->byval_arg.type == MONO_TYPE_SZARRAY) {
3873 MonoClass *element_class = class->element_class;
3874 if (!element_class->inited)
3875 mono_class_init (element_class);
3876 if (element_class->exception_type != MONO_EXCEPTION_NONE) {
3877 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3882 /* CAS - SecurityAction.InheritanceDemand */
3883 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
3884 mono_secman_inheritancedemand_class (class, class->parent);
3887 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3888 mono_security_core_clr_check_inheritance (class);
3890 mono_stats.initialized_class_count++;
3892 if (class->generic_class && !class->generic_class->is_dynamic) {
3893 MonoClass *gklass = class->generic_class->container_class;
3895 mono_stats.generic_class_count++;
3897 class->method = gklass->method;
3898 class->field = gklass->field;
3900 mono_class_init (gklass);
3901 // FIXME: Why is this needed ?
3902 mono_class_setup_methods (gklass);
3904 if (MONO_CLASS_IS_INTERFACE (class))
3905 class->interface_id = mono_get_unique_iid (class);
3908 if (class->parent && !class->parent->inited)
3909 mono_class_init (class->parent);
3911 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
3913 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
3914 class->nested_classes_inited = TRUE;
3917 * Computes the size used by the fields, and their locations
3919 if (has_cached_info) {
3920 class->instance_size = cached_info.instance_size;
3921 class->sizes.class_size = cached_info.class_size;
3922 class->packing_size = cached_info.packing_size;
3923 class->min_align = cached_info.min_align;
3924 class->blittable = cached_info.blittable;
3925 class->has_references = cached_info.has_references;
3926 class->has_static_refs = cached_info.has_static_refs;
3927 class->no_special_static_fields = cached_info.no_special_static_fields;
3930 if (!class->size_inited){
3931 mono_class_setup_fields (class);
3932 if (class->exception_type || mono_loader_get_last_error ()){
3933 class_init_ok = FALSE;
3938 /* Initialize arrays */
3940 class->method.count = 3 + (class->rank > 1? 2: 1);
3942 if (class->interface_count) {
3943 int count_generic = generic_array_methods (class);
3944 class->method.count += class->interface_count * count_generic;
3948 mono_class_setup_supertypes (class);
3951 initialize_object_slots (class);
3954 * Initialize the rest of the data without creating a generic vtable if possible.
3955 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
3956 * also avoid computing a generic vtable.
3958 if (has_cached_info) {
3960 class->vtable_size = cached_info.vtable_size;
3961 class->has_finalize = cached_info.has_finalize;
3962 class->ghcimpl = cached_info.ghcimpl;
3963 class->has_cctor = cached_info.has_cctor;
3964 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
3965 static int szarray_vtable_size = 0;
3968 if (!szarray_vtable_size) {
3969 mono_class_setup_vtable (class);
3970 szarray_vtable_size = class->vtable_size;
3972 class->vtable_size = szarray_vtable_size;
3974 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
3975 MonoClass *gklass = class->generic_class->container_class;
3977 /* Generic instance case */
3978 class->ghcimpl = gklass->ghcimpl;
3979 class->has_finalize = gklass->has_finalize;
3980 class->has_cctor = gklass->has_cctor;
3982 mono_class_setup_vtable (gklass);
3983 if (gklass->exception_type) {
3984 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3988 class->vtable_size = gklass->vtable_size;
3992 /* ghcimpl is not currently used
3994 if (class->parent) {
3995 MonoMethod *cmethod = class->vtable [ghc_slot];
3996 if (cmethod->is_inflated)
3997 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3998 if (cmethod == default_ghc) {
4004 /* Interfaces and valuetypes are not supposed to have finalizers */
4005 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
4006 MonoMethod *cmethod = NULL;
4008 if (class->parent && class->parent->has_finalize) {
4009 class->has_finalize = 1;
4011 if (class->type_token) {
4012 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
4013 } else if (class->parent) {
4014 /* FIXME: Optimize this */
4015 mono_class_setup_vtable (class);
4016 if (class->exception_type || mono_loader_get_last_error ())
4018 cmethod = class->vtable [finalize_slot];
4022 /* Check that this is really the finalizer method */
4023 mono_class_setup_vtable (class);
4024 if (class->exception_type || mono_loader_get_last_error ())
4027 class->has_finalize = 0;
4028 if (class->parent) {
4029 cmethod = class->vtable [finalize_slot];
4030 if (cmethod->is_inflated)
4031 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4032 if (cmethod != default_finalize) {
4033 class->has_finalize = 1;
4040 /* C# doesn't allow interfaces to have cctors */
4041 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
4042 MonoMethod *cmethod = NULL;
4044 if (class->type_token) {
4045 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
4046 /* The find_method function ignores the 'flags' argument */
4047 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
4048 class->has_cctor = 1;
4050 mono_class_setup_methods (class);
4052 for (i = 0; i < class->method.count; ++i) {
4053 MonoMethod *method = class->methods [i];
4054 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
4055 (strcmp (".cctor", method->name) == 0)) {
4056 class->has_cctor = 1;
4064 if (!mono_setup_vtable_in_class_init) {
4066 * This is an embedding API break, since the caller might assume that
4067 * mono_class_init () constructs a generic vtable, so vtable construction errors
4068 * are visible right after the mono_class_init (), and not after
4069 * mono_class_vtable ().
4071 if (class->parent) {
4072 /* This will compute class->parent->vtable_size for some classes */
4073 mono_class_init (class->parent);
4074 if (class->parent->exception_type) {
4075 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4078 if (mono_loader_get_last_error ())
4080 if (!class->parent->vtable_size) {
4081 /* FIXME: Get rid of this somehow */
4082 mono_class_setup_vtable (class->parent);
4083 if (class->parent->exception_type) {
4084 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4087 if (mono_loader_get_last_error ())
4090 setup_interface_offsets (class, class->parent->vtable_size);
4092 setup_interface_offsets (class, 0);
4095 mono_class_setup_vtable (class);
4097 if (MONO_CLASS_IS_INTERFACE (class))
4098 setup_interface_offsets (class, 0);
4101 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
4102 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
4103 class_init_ok = FALSE;
4109 class_init_ok = FALSE;
4112 /* Because of the double-checking locking pattern */
4113 mono_memory_barrier ();
4115 class->init_pending = 0;
4117 if (mono_loader_get_last_error ()) {
4118 if (class->exception_type == MONO_EXCEPTION_NONE)
4119 set_failure_from_loader_error (class, mono_loader_get_last_error ());
4121 mono_loader_clear_error ();
4124 mono_loader_unlock ();
4126 if (mono_debugger_class_init_func)
4127 mono_debugger_class_init_func (class);
4129 return class_init_ok;
4133 is_corlib_image (MonoImage *image)
4135 /* FIXME: allow the dynamic case for our compilers and with full trust */
4137 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
4139 return image == mono_defaults.corlib;
4143 * LOCKING: this assumes the loader lock is held
4146 mono_class_setup_mono_type (MonoClass *class)
4148 const char *name = class->name;
4149 const char *nspace = class->name_space;
4150 gboolean is_corlib = is_corlib_image (class->image);
4152 class->this_arg.byref = 1;
4153 class->this_arg.data.klass = class;
4154 class->this_arg.type = MONO_TYPE_CLASS;
4155 class->byval_arg.data.klass = class;
4156 class->byval_arg.type = MONO_TYPE_CLASS;
4158 if (is_corlib && !strcmp (nspace, "System")) {
4159 if (!strcmp (name, "ValueType")) {
4161 * do not set the valuetype bit for System.ValueType.
4162 * class->valuetype = 1;
4164 class->blittable = TRUE;
4165 } else if (!strcmp (name, "Enum")) {
4167 * do not set the valuetype bit for System.Enum.
4168 * class->valuetype = 1;
4170 class->valuetype = 0;
4171 class->enumtype = 0;
4172 } else if (!strcmp (name, "Object")) {
4173 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
4174 } else if (!strcmp (name, "String")) {
4175 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
4176 } else if (!strcmp (name, "TypedReference")) {
4177 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
4181 if (class->valuetype) {
4182 int t = MONO_TYPE_VALUETYPE;
4184 if (is_corlib && !strcmp (nspace, "System")) {
4187 if (!strcmp (name, "Boolean")) {
4188 t = MONO_TYPE_BOOLEAN;
4189 } else if (!strcmp(name, "Byte")) {
4191 class->blittable = TRUE;
4195 if (!strcmp (name, "Char")) {
4200 if (!strcmp (name, "Double")) {
4202 class->blittable = TRUE;
4206 if (!strcmp (name, "Int32")) {
4208 class->blittable = TRUE;
4209 } else if (!strcmp(name, "Int16")) {
4211 class->blittable = TRUE;
4212 } else if (!strcmp(name, "Int64")) {
4214 class->blittable = TRUE;
4215 } else if (!strcmp(name, "IntPtr")) {
4217 class->blittable = TRUE;
4221 if (!strcmp (name, "Single")) {
4223 class->blittable = TRUE;
4224 } else if (!strcmp(name, "SByte")) {
4226 class->blittable = TRUE;
4230 if (!strcmp (name, "UInt32")) {
4232 class->blittable = TRUE;
4233 } else if (!strcmp(name, "UInt16")) {
4235 class->blittable = TRUE;
4236 } else if (!strcmp(name, "UInt64")) {
4238 class->blittable = TRUE;
4239 } else if (!strcmp(name, "UIntPtr")) {
4241 class->blittable = TRUE;
4245 if (!strcmp (name, "TypedReference")) {
4246 t = MONO_TYPE_TYPEDBYREF;
4247 class->blittable = TRUE;
4251 if (!strcmp (name, "Void")) {
4259 class->this_arg.type = class->byval_arg.type = t;
4262 if (MONO_CLASS_IS_INTERFACE (class))
4263 class->interface_id = mono_get_unique_iid (class);
4268 * LOCKING: this assumes the loader lock is held
4271 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
4273 gboolean system_namespace;
4274 gboolean is_corlib = is_corlib_image (class->image);
4276 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
4278 /* if root of the hierarchy */
4279 if (system_namespace && !strcmp (class->name, "Object")) {
4280 class->parent = NULL;
4281 class->instance_size = sizeof (MonoObject);
4284 if (!strcmp (class->name, "<Module>")) {
4285 class->parent = NULL;
4286 class->instance_size = 0;
4290 if (!MONO_CLASS_IS_INTERFACE (class)) {
4291 /* Imported COM Objects always derive from __ComObject. */
4292 if (MONO_CLASS_IS_IMPORT (class)) {
4293 mono_init_com_types ();
4294 if (parent == mono_defaults.object_class)
4295 parent = mono_defaults.com_object_class;
4298 /* set the parent to something useful and safe, but mark the type as broken */
4299 parent = mono_defaults.object_class;
4300 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4303 class->parent = parent;
4305 if (parent->generic_class && !parent->name) {
4307 * If the parent is a generic instance, we may get
4308 * called before it is fully initialized, especially
4309 * before it has its name.
4314 class->marshalbyref = parent->marshalbyref;
4315 class->contextbound = parent->contextbound;
4316 class->delegate = parent->delegate;
4317 if (MONO_CLASS_IS_IMPORT (class))
4318 class->is_com_object = 1;
4320 class->is_com_object = parent->is_com_object;
4322 if (system_namespace) {
4323 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
4324 class->marshalbyref = 1;
4326 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
4327 class->contextbound = 1;
4329 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
4330 class->delegate = 1;
4333 if (class->parent->enumtype || (is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
4334 (strcmp (class->parent->name_space, "System") == 0)))
4335 class->valuetype = 1;
4336 if (is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
4337 class->valuetype = class->enumtype = 1;
4339 /*class->enumtype = class->parent->enumtype; */
4340 mono_class_setup_supertypes (class);
4342 /* initialize com types if COM interfaces are present */
4343 if (MONO_CLASS_IS_IMPORT (class))
4344 mono_init_com_types ();
4345 class->parent = NULL;
4351 * mono_class_setup_supertypes:
4354 * Build the data structure needed to make fast type checks work.
4355 * This currently sets two fields in @class:
4356 * - idepth: distance between @class and System.Object in the type
4358 * - supertypes: array of classes: each element has a class in the hierarchy
4359 * starting from @class up to System.Object
4361 * LOCKING: this assumes the loader lock is held
4364 mono_class_setup_supertypes (MonoClass *class)
4368 if (class->supertypes)
4371 if (class->parent && !class->parent->supertypes)
4372 mono_class_setup_supertypes (class->parent);
4374 class->idepth = class->parent->idepth + 1;
4378 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
4379 class->supertypes = mono_image_alloc0 (class->image, sizeof (MonoClass *) * ms);
4381 if (class->parent) {
4382 class->supertypes [class->idepth - 1] = class;
4383 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
4385 class->supertypes [0] = class;
4390 * mono_class_create_from_typedef:
4391 * @image: image where the token is valid
4392 * @type_token: typedef token
4394 * Create the MonoClass* representing the specified type token.
4395 * @type_token must be a TypeDef token.
4398 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
4400 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
4401 MonoClass *class, *parent = NULL;
4402 guint32 cols [MONO_TYPEDEF_SIZE];
4403 guint32 cols_next [MONO_TYPEDEF_SIZE];
4404 guint tidx = mono_metadata_token_index (type_token);
4405 MonoGenericContext *context = NULL;
4406 const char *name, *nspace;
4408 MonoClass **interfaces;
4409 guint32 field_last, method_last;
4410 guint32 nesting_tokeen;
4412 mono_loader_lock ();
4414 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
4415 mono_loader_unlock ();
4419 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
4421 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
4423 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4424 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4426 class = mono_image_alloc0 (image, sizeof (MonoClass));
4429 class->name_space = nspace;
4431 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4433 class->image = image;
4434 class->type_token = type_token;
4435 class->flags = cols [MONO_TYPEDEF_FLAGS];
4437 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
4439 classes_size += sizeof (MonoClass);
4442 * Check whether we're a generic type definition.
4444 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
4445 if (class->generic_container) {
4446 class->is_generic = 1;
4447 class->generic_container->owner.klass = class;
4448 context = &class->generic_container->context;
4451 if (cols [MONO_TYPEDEF_EXTENDS]) {
4452 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
4454 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
4455 /*WARNING: this must satisfy mono_metadata_type_hash*/
4456 class->this_arg.byref = 1;
4457 class->this_arg.data.klass = class;
4458 class->this_arg.type = MONO_TYPE_CLASS;
4459 class->byval_arg.data.klass = class;
4460 class->byval_arg.type = MONO_TYPE_CLASS;
4462 parent = mono_class_get_full (image, parent_token, context);
4464 if (parent == NULL){
4465 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
4466 mono_loader_unlock ();
4467 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4472 /* do this early so it's available for interfaces in setup_mono_type () */
4473 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
4474 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
4476 mono_class_setup_parent (class, parent);
4478 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
4479 mono_class_setup_mono_type (class);
4481 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
4484 #ifdef PLATFORM_WIN32
4485 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
4489 class->cast_class = class->element_class = class;
4491 if (!class->enumtype) {
4492 if (!mono_metadata_interfaces_from_typedef_full (
4493 image, type_token, &interfaces, &icount, FALSE, context)){
4494 mono_loader_unlock ();
4495 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4499 class->interfaces = interfaces;
4500 class->interface_count = icount;
4501 class->interfaces_inited = 1;
4504 /*g_print ("Load class %s\n", name);*/
4507 * Compute the field and method lists
4509 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
4510 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
4512 if (tt->rows > tidx){
4513 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
4514 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
4515 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
4517 field_last = image->tables [MONO_TABLE_FIELD].rows;
4518 method_last = image->tables [MONO_TABLE_METHOD].rows;
4521 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
4522 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
4523 class->field.count = field_last - class->field.first;
4525 class->field.count = 0;
4527 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
4528 class->method.count = method_last - class->method.first;
4530 class->method.count = 0;
4532 /* reserve space to store vector pointer in arrays */
4533 if (is_corlib_image (image) && !strcmp (nspace, "System") && !strcmp (name, "Array")) {
4534 class->instance_size += 2 * sizeof (gpointer);
4535 g_assert (class->field.count == 0);
4538 if (class->enumtype) {
4539 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
4540 if (!enum_basetype) {
4541 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4542 mono_loader_unlock ();
4543 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4546 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
4550 * If we're a generic type definition, load the constraints.
4551 * We must do this after the class has been constructed to make certain recursive scenarios
4554 if (class->generic_container && !mono_metadata_load_generic_param_constraints_full (image, type_token, class->generic_container)){
4555 char *class_name = g_strdup_printf("%s.%s", class->name_space, class->name);
4556 char *error = concat_two_strings_with_zero (class->image, class_name, class->image->assembly_name);
4557 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, error);
4558 g_free (class_name);
4559 mono_loader_unlock ();
4560 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4564 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
4565 if (!strncmp (name, "Vector", 6))
4566 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");
4569 mono_loader_unlock ();
4571 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4576 /** is klass Nullable<T>? */
4578 mono_class_is_nullable (MonoClass *klass)
4580 return klass->generic_class != NULL &&
4581 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
4585 /** if klass is T? return T */
4587 mono_class_get_nullable_param (MonoClass *klass)
4589 g_assert (mono_class_is_nullable (klass));
4590 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4594 * Create the `MonoClass' for an instantiation of a generic type.
4595 * We only do this if we actually need it.
4598 mono_generic_class_get_class (MonoGenericClass *gclass)
4600 MonoClass *klass, *gklass;
4602 mono_loader_lock ();
4603 if (gclass->cached_class) {
4604 mono_loader_unlock ();
4605 return gclass->cached_class;
4608 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
4609 klass = gclass->cached_class;
4611 gklass = gclass->container_class;
4613 if (gklass->nested_in) {
4615 * FIXME: the nested type context should include everything the
4616 * nesting context should have, but it may also have additional
4617 * generic parameters...
4619 klass->nested_in = mono_class_inflate_generic_class (gklass->nested_in,
4620 mono_generic_class_get_context (gclass));
4623 klass->name = gklass->name;
4624 klass->name_space = gklass->name_space;
4626 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4628 klass->image = gklass->image;
4629 klass->flags = gklass->flags;
4630 klass->type_token = gklass->type_token;
4631 klass->field.count = gklass->field.count;
4633 klass->is_inflated = 1;
4634 klass->generic_class = gclass;
4636 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
4637 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
4638 klass->this_arg.byref = TRUE;
4639 klass->enumtype = gklass->enumtype;
4640 klass->valuetype = gklass->valuetype;
4642 klass->cast_class = klass->element_class = klass;
4644 if (mono_class_is_nullable (klass))
4645 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
4648 * We're not interested in the nested classes of a generic instance.
4649 * We use the generic type definition to look for nested classes.
4652 if (gklass->parent) {
4653 klass->parent = mono_class_inflate_generic_class (gklass->parent, mono_generic_class_get_context (gclass));
4657 mono_class_setup_parent (klass, klass->parent);
4659 if (klass->enumtype) {
4660 klass->cast_class = gklass->cast_class;
4661 klass->element_class = gklass->element_class;
4664 if (gclass->is_dynamic) {
4667 mono_class_setup_supertypes (klass);
4669 if (klass->enumtype) {
4671 * For enums, gklass->fields might not been set, but instance_size etc. is
4672 * already set in mono_reflection_create_internal_class (). For non-enums,
4673 * these will be computed normally in mono_class_layout_fields ().
4675 klass->instance_size = gklass->instance_size;
4676 klass->sizes.class_size = gklass->sizes.class_size;
4677 klass->size_inited = 1;
4681 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4683 inflated_classes ++;
4684 inflated_classes_size += sizeof (MonoClass);
4686 mono_loader_unlock ();
4692 make_generic_param_class (MonoGenericParam *param, MonoImage *image, gboolean is_mvar, MonoGenericParamInfo *pinfo)
4694 MonoClass *klass, **ptr;
4699 image = mono_defaults.corlib;
4701 klass = mono_image_alloc0 (image, sizeof (MonoClass));
4702 classes_size += sizeof (MonoClass);
4705 klass->name = pinfo->name;
4707 int n = mono_generic_param_num (param);
4708 klass->name = mono_image_alloc0 (image, 16);
4709 sprintf ((char*)klass->name, "%d", n);
4712 klass->name_space = "";
4713 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4717 for (ptr = pinfo->constraints; ptr && *ptr; ptr++, count++)
4721 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (pinfo->constraints [0])) {
4722 klass->parent = pinfo->constraints [0];
4724 } else if (pinfo && pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
4725 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
4727 klass->parent = mono_defaults.object_class;
4730 if (count - pos > 0) {
4731 klass->interface_count = count - pos;
4732 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
4733 for (i = pos; i < count; i++)
4734 klass->interfaces [i - pos] = pinfo->constraints [i];
4737 klass->image = image;
4739 klass->inited = TRUE;
4740 klass->cast_class = klass->element_class = klass;
4741 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
4743 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4744 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
4745 klass->this_arg.byref = TRUE;
4747 /* FIXME: shouldn't this be ->type_token? */
4748 klass->sizes.generic_param_token = pinfo ? pinfo->token : 0;
4750 mono_class_setup_supertypes (klass);
4755 #define FAST_CACHE_SIZE 1024
4756 static MonoClass *var_cache_fast [FAST_CACHE_SIZE];
4757 static MonoClass *mvar_cache_fast [FAST_CACHE_SIZE];
4758 static GHashTable *var_cache_slow;
4759 static GHashTable *mvar_cache_slow;
4762 get_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar)
4764 int n = mono_generic_param_num (param);
4767 if (n < FAST_CACHE_SIZE)
4768 return (is_mvar ? mvar_cache_fast : var_cache_fast) [n];
4769 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
4770 return ht ? g_hash_table_lookup (ht, GINT_TO_POINTER (n)) : NULL;
4774 set_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar, MonoClass *klass)
4776 int n = mono_generic_param_num (param);
4779 if (n < FAST_CACHE_SIZE) {
4780 (is_mvar ? mvar_cache_fast : var_cache_fast) [n] = klass;
4783 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
4785 ht = g_hash_table_new (NULL, NULL);
4787 mvar_cache_slow = ht;
4789 var_cache_slow = ht;
4792 g_hash_table_insert (ht, GINT_TO_POINTER (n), klass);
4796 * LOCKING: Acquires the loader lock.
4799 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
4801 MonoGenericContainer *container = mono_generic_param_owner (param);
4802 MonoGenericParamInfo *pinfo;
4805 mono_loader_lock ();
4808 pinfo = mono_generic_param_info (param);
4809 if (pinfo->pklass) {
4810 mono_loader_unlock ();
4811 return pinfo->pklass;
4817 klass = get_anon_gparam_class (param, is_mvar);
4819 mono_loader_unlock ();
4824 if (!image && container) {
4826 MonoMethod *method = container->owner.method;
4827 image = (method && method->klass) ? method->klass->image : NULL;
4829 MonoClass *klass = container->owner.klass;
4830 // FIXME: 'klass' should not be null
4831 // But, monodis creates GenericContainers without associating a owner to it
4832 image = klass ? klass->image : NULL;
4836 klass = make_generic_param_class (param, image, is_mvar, pinfo);
4838 mono_memory_barrier ();
4841 pinfo->pklass = klass;
4843 set_anon_gparam_class (param, is_mvar, klass);
4845 mono_loader_unlock ();
4847 /* FIXME: Should this go inside 'make_generic_param_klass'? */
4848 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4854 mono_ptr_class_get (MonoType *type)
4857 MonoClass *el_class;
4861 el_class = mono_class_from_mono_type (type);
4862 image = el_class->image;
4864 mono_loader_lock ();
4866 if (!image->ptr_cache)
4867 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4869 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
4870 mono_loader_unlock ();
4873 result = mono_image_alloc0 (image, sizeof (MonoClass));
4875 classes_size += sizeof (MonoClass);
4877 result->parent = NULL; /* no parent for PTR types */
4878 result->name_space = el_class->name_space;
4879 name = g_strdup_printf ("%s*", el_class->name);
4880 result->name = mono_image_strdup (image, name);
4883 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4885 result->image = el_class->image;
4886 result->inited = TRUE;
4887 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4888 /* Can pointers get boxed? */
4889 result->instance_size = sizeof (gpointer);
4890 result->cast_class = result->element_class = el_class;
4891 result->blittable = TRUE;
4893 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
4894 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
4895 result->this_arg.byref = TRUE;
4897 mono_class_setup_supertypes (result);
4899 g_hash_table_insert (image->ptr_cache, el_class, result);
4901 mono_loader_unlock ();
4903 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4909 mono_fnptr_class_get (MonoMethodSignature *sig)
4912 static GHashTable *ptr_hash = NULL;
4914 /* FIXME: These should be allocate from a mempool as well, but which one ? */
4916 mono_loader_lock ();
4919 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4921 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
4922 mono_loader_unlock ();
4925 result = g_new0 (MonoClass, 1);
4927 result->parent = NULL; /* no parent for PTR types */
4928 result->name_space = "System";
4929 result->name = "MonoFNPtrFakeClass";
4931 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4933 result->image = mono_defaults.corlib; /* need to fix... */
4934 result->inited = TRUE;
4935 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
4936 /* Can pointers get boxed? */
4937 result->instance_size = sizeof (gpointer);
4938 result->cast_class = result->element_class = result;
4939 result->blittable = TRUE;
4941 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
4942 result->this_arg.data.method = result->byval_arg.data.method = sig;
4943 result->this_arg.byref = TRUE;
4944 result->blittable = TRUE;
4946 mono_class_setup_supertypes (result);
4948 g_hash_table_insert (ptr_hash, sig, result);
4950 mono_loader_unlock ();
4952 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4958 mono_class_from_mono_type (MonoType *type)
4960 switch (type->type) {
4961 case MONO_TYPE_OBJECT:
4962 return type->data.klass? type->data.klass: mono_defaults.object_class;
4963 case MONO_TYPE_VOID:
4964 return type->data.klass? type->data.klass: mono_defaults.void_class;
4965 case MONO_TYPE_BOOLEAN:
4966 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
4967 case MONO_TYPE_CHAR:
4968 return type->data.klass? type->data.klass: mono_defaults.char_class;
4970 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
4972 return type->data.klass? type->data.klass: mono_defaults.byte_class;
4974 return type->data.klass? type->data.klass: mono_defaults.int16_class;
4976 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
4978 return type->data.klass? type->data.klass: mono_defaults.int32_class;
4980 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
4982 return type->data.klass? type->data.klass: mono_defaults.int_class;
4984 return type->data.klass? type->data.klass: mono_defaults.uint_class;
4986 return type->data.klass? type->data.klass: mono_defaults.int64_class;
4988 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
4990 return type->data.klass? type->data.klass: mono_defaults.single_class;
4992 return type->data.klass? type->data.klass: mono_defaults.double_class;
4993 case MONO_TYPE_STRING:
4994 return type->data.klass? type->data.klass: mono_defaults.string_class;
4995 case MONO_TYPE_TYPEDBYREF:
4996 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
4997 case MONO_TYPE_ARRAY:
4998 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
5000 return mono_ptr_class_get (type->data.type);
5001 case MONO_TYPE_FNPTR:
5002 return mono_fnptr_class_get (type->data.method);
5003 case MONO_TYPE_SZARRAY:
5004 return mono_array_class_get (type->data.klass, 1);
5005 case MONO_TYPE_CLASS:
5006 case MONO_TYPE_VALUETYPE:
5007 return type->data.klass;
5008 case MONO_TYPE_GENERICINST:
5009 return mono_generic_class_get_class (type->data.generic_class);
5011 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
5012 case MONO_TYPE_MVAR:
5013 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
5015 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
5016 g_assert_not_reached ();
5023 * mono_type_retrieve_from_typespec
5024 * @image: context where the image is created
5025 * @type_spec: typespec token
5026 * @context: the generic context used to evaluate generic instantiations in
5029 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate)
5032 MonoType *t = mono_type_create_from_typespec (image, type_spec);
5035 if (context && (context->class_inst || context->method_inst)) {
5036 MonoType *inflated = inflate_generic_type (NULL, t, context, &error);
5037 g_assert (mono_error_ok (&error)); /*FIXME proper error handling*/
5041 *did_inflate = TRUE;
5048 * mono_class_create_from_typespec
5049 * @image: context where the image is created
5050 * @type_spec: typespec token
5051 * @context: the generic context used to evaluate generic instantiations in
5054 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
5057 gboolean inflated = FALSE;
5058 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated);
5061 ret = mono_class_from_mono_type (t);
5063 mono_metadata_free_type (t);
5068 * mono_bounded_array_class_get:
5069 * @element_class: element class
5070 * @rank: the dimension of the array class
5071 * @bounded: whenever the array has non-zero bounds
5073 * Returns: a class object describing the array with element type @element_type and
5077 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
5081 MonoClass *parent = NULL;
5082 GSList *list, *rootlist = NULL;
5085 gboolean corlib_type = FALSE;
5087 g_assert (rank <= 255);
5090 /* bounded only matters for one-dimensional arrays */
5093 image = eclass->image;
5095 if (rank == 1 && !bounded) {
5097 * This case is very frequent not just during compilation because of calls
5098 * from mono_class_from_mono_type (), mono_array_new (),
5099 * Array:CreateInstance (), etc, so use a separate cache + a separate lock.
5101 EnterCriticalSection (&image->szarray_cache_lock);
5102 if (!image->szarray_cache)
5103 image->szarray_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5104 class = g_hash_table_lookup (image->szarray_cache, eclass);
5105 LeaveCriticalSection (&image->szarray_cache_lock);
5109 mono_loader_lock ();
5111 mono_loader_lock ();
5113 if (!image->array_cache)
5114 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5116 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
5117 for (; list; list = list->next) {
5119 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
5120 mono_loader_unlock ();
5127 /* for the building corlib use System.Array from it */
5128 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
5129 parent = mono_class_from_name (image, "System", "Array");
5132 parent = mono_defaults.array_class;
5133 if (!parent->inited)
5134 mono_class_init (parent);
5137 class = mono_image_alloc0 (image, sizeof (MonoClass));
5139 class->image = image;
5140 class->name_space = eclass->name_space;
5141 nsize = strlen (eclass->name);
5142 name = g_malloc (nsize + 2 + rank + 1);
5143 memcpy (name, eclass->name, nsize);
5146 memset (name + nsize + 1, ',', rank - 1);
5148 name [nsize + rank] = '*';
5149 name [nsize + rank + bounded] = ']';
5150 name [nsize + rank + bounded + 1] = 0;
5151 class->name = mono_image_strdup (image, name);
5154 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
5156 classes_size += sizeof (MonoClass);
5158 class->type_token = 0;
5159 /* all arrays are marked serializable and sealed, bug #42779 */
5160 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
5161 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
5162 class->parent = parent;
5163 class->instance_size = mono_class_instance_size (class->parent);
5165 if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
5166 if (!eclass->reflection_info || eclass->wastypebuilder) {
5167 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
5168 g_assert (eclass->reflection_info && !eclass->wastypebuilder);
5170 /* element_size -1 is ok as this is not an instantitable type*/
5171 class->sizes.element_size = -1;
5173 class->sizes.element_size = mono_class_array_element_size (eclass);
5175 mono_class_setup_supertypes (class);
5177 if (eclass->generic_class)
5178 mono_class_init (eclass);
5179 if (!eclass->size_inited)
5180 mono_class_setup_fields (eclass);
5181 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
5185 if (eclass->enumtype)
5186 class->cast_class = eclass->element_class;
5188 class->cast_class = eclass;
5190 class->element_class = eclass;
5192 if ((rank > 1) || bounded) {
5193 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
5194 class->byval_arg.type = MONO_TYPE_ARRAY;
5195 class->byval_arg.data.array = at;
5196 at->eklass = eclass;
5198 /* FIXME: complete.... */
5200 class->byval_arg.type = MONO_TYPE_SZARRAY;
5201 class->byval_arg.data.klass = eclass;
5203 class->this_arg = class->byval_arg;
5204 class->this_arg.byref = 1;
5209 class->generic_container = eclass->generic_container;
5211 if (rank == 1 && !bounded) {
5212 MonoClass *prev_class;
5214 EnterCriticalSection (&image->szarray_cache_lock);
5215 prev_class = g_hash_table_lookup (image->szarray_cache, eclass);
5217 /* Someone got in before us */
5220 g_hash_table_insert (image->szarray_cache, eclass, class);
5221 LeaveCriticalSection (&image->szarray_cache_lock);
5223 list = g_slist_append (rootlist, class);
5224 g_hash_table_insert (image->array_cache, eclass, list);
5227 mono_loader_unlock ();
5229 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
5235 * mono_array_class_get:
5236 * @element_class: element class
5237 * @rank: the dimension of the array class
5239 * Returns: a class object describing the array with element type @element_type and
5243 mono_array_class_get (MonoClass *eclass, guint32 rank)
5245 return mono_bounded_array_class_get (eclass, rank, FALSE);
5249 * mono_class_instance_size:
5252 * Returns: the size of an object instance
5255 mono_class_instance_size (MonoClass *klass)
5257 if (!klass->size_inited)
5258 mono_class_init (klass);
5260 return klass->instance_size;
5264 * mono_class_min_align:
5267 * Returns: minimm alignment requirements
5270 mono_class_min_align (MonoClass *klass)
5272 if (!klass->size_inited)
5273 mono_class_init (klass);
5275 return klass->min_align;
5279 * mono_class_value_size:
5282 * This function is used for value types, and return the
5283 * space and the alignment to store that kind of value object.
5285 * Returns: the size of a value of kind @klass
5288 mono_class_value_size (MonoClass *klass, guint32 *align)
5292 /* fixme: check disable, because we still have external revereces to
5293 * mscorlib and Dummy Objects
5295 /*g_assert (klass->valuetype);*/
5297 size = mono_class_instance_size (klass) - sizeof (MonoObject);
5300 *align = klass->min_align;
5306 * mono_class_data_size:
5309 * Returns: the size of the static class data
5312 mono_class_data_size (MonoClass *klass)
5315 mono_class_init (klass);
5317 /* in arrays, sizes.class_size is unioned with element_size
5318 * and arrays have no static fields
5322 return klass->sizes.class_size;
5326 * Auxiliary routine to mono_class_get_field
5328 * Takes a field index instead of a field token.
5330 static MonoClassField *
5331 mono_class_get_field_idx (MonoClass *class, int idx)
5333 mono_class_setup_fields_locking (class);
5336 if (class->image->uncompressed_metadata) {
5338 * class->field.first points to the FieldPtr table, while idx points into the
5339 * Field table, so we have to do a search.
5341 /*FIXME this is broken for types with multiple fields with the same name.*/
5342 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
5345 for (i = 0; i < class->field.count; ++i)
5346 if (mono_field_get_name (&class->fields [i]) == name)
5347 return &class->fields [i];
5348 g_assert_not_reached ();
5350 if (class->field.count) {
5351 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
5352 return &class->fields [idx - class->field.first];
5356 class = class->parent;
5362 * mono_class_get_field:
5363 * @class: the class to lookup the field.
5364 * @field_token: the field token
5366 * Returns: A MonoClassField representing the type and offset of
5367 * the field, or a NULL value if the field does not belong to this
5371 mono_class_get_field (MonoClass *class, guint32 field_token)
5373 int idx = mono_metadata_token_index (field_token);
5375 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
5377 return mono_class_get_field_idx (class, idx - 1);
5381 * mono_class_get_field_from_name:
5382 * @klass: the class to lookup the field.
5383 * @name: the field name
5385 * Search the class @klass and it's parents for a field with the name @name.
5387 * Returns: the MonoClassField pointer of the named field or NULL
5390 mono_class_get_field_from_name (MonoClass *klass, const char *name)
5392 return mono_class_get_field_from_name_full (klass, name, NULL);
5396 * mono_class_get_field_from_name_full:
5397 * @klass: the class to lookup the field.
5398 * @name: the field name
5399 * @type: the type of the fields. This optional.
5401 * Search the class @klass and it's parents for a field with the name @name and type @type.
5403 * If @klass is an inflated generic type, the type comparison is done with the equivalent field
5404 * of its generic type definition.
5406 * Returns: the MonoClassField pointer of the named field or NULL
5409 mono_class_get_field_from_name_full (MonoClass *klass, const char *name, MonoType *type)
5413 mono_class_setup_fields_locking (klass);
5415 for (i = 0; i < klass->field.count; ++i) {
5416 MonoClassField *field = &klass->fields [i];
5418 if (strcmp (name, mono_field_get_name (field)) != 0)
5422 MonoType *field_type = mono_metadata_get_corresponding_field_from_generic_type_definition (field)->type;
5423 if (!mono_metadata_type_equal_full (type, field_type, TRUE))
5428 klass = klass->parent;
5434 * mono_class_get_field_token:
5435 * @field: the field we need the token of
5437 * Get the token of a field. Note that the tokesn is only valid for the image
5438 * the field was loaded from. Don't use this function for fields in dynamic types.
5440 * Returns: the token representing the field in the image it was loaded from.
5443 mono_class_get_field_token (MonoClassField *field)
5445 MonoClass *klass = field->parent;
5448 mono_class_setup_fields_locking (klass);
5450 for (i = 0; i < klass->field.count; ++i) {
5451 if (&klass->fields [i] == field) {
5452 int idx = klass->field.first + i + 1;
5454 if (klass->image->uncompressed_metadata)
5455 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
5456 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
5459 klass = klass->parent;
5462 g_assert_not_reached ();
5467 mono_field_get_index (MonoClassField *field)
5469 int index = field - field->parent->fields;
5471 g_assert (index >= 0 && index < field->parent->field.count);
5477 * mono_class_get_field_default_value:
5479 * Return the default value of the field as a pointer into the metadata blob.
5482 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
5485 guint32 constant_cols [MONO_CONSTANT_SIZE];
5487 MonoClass *klass = field->parent;
5489 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
5491 if (!klass->ext || !klass->ext->field_def_values) {
5492 mono_loader_lock ();
5493 mono_class_alloc_ext (klass);
5494 if (!klass->ext->field_def_values)
5495 klass->ext->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
5496 mono_loader_unlock ();
5499 field_index = mono_field_get_index (field);
5501 if (!klass->ext->field_def_values [field_index].data) {
5502 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
5504 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
5506 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
5507 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
5508 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
5511 *def_type = klass->ext->field_def_values [field_index].def_type;
5512 return klass->ext->field_def_values [field_index].data;
5516 mono_class_get_event_token (MonoEvent *event)
5518 MonoClass *klass = event->parent;
5523 for (i = 0; i < klass->ext->event.count; ++i) {
5524 if (&klass->ext->events [i] == event)
5525 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
5528 klass = klass->parent;
5531 g_assert_not_reached ();
5536 mono_class_get_property_from_name (MonoClass *klass, const char *name)
5540 gpointer iter = NULL;
5541 while ((p = mono_class_get_properties (klass, &iter))) {
5542 if (! strcmp (name, p->name))
5545 klass = klass->parent;
5551 mono_class_get_property_token (MonoProperty *prop)
5553 MonoClass *klass = prop->parent;
5557 gpointer iter = NULL;
5558 while ((p = mono_class_get_properties (klass, &iter))) {
5559 if (&klass->ext->properties [i] == prop)
5560 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
5564 klass = klass->parent;
5567 g_assert_not_reached ();
5572 mono_class_name_from_token (MonoImage *image, guint32 type_token)
5574 const char *name, *nspace;
5576 return g_strdup_printf ("DynamicType 0x%08x", type_token);
5578 switch (type_token & 0xff000000){
5579 case MONO_TOKEN_TYPE_DEF: {
5580 guint32 cols [MONO_TYPEDEF_SIZE];
5581 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5582 guint tidx = mono_metadata_token_index (type_token);
5584 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5585 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5586 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5587 if (strlen (nspace) == 0)
5588 return g_strdup_printf ("%s", name);
5590 return g_strdup_printf ("%s.%s", nspace, name);
5593 case MONO_TOKEN_TYPE_REF: {
5594 guint32 cols [MONO_TYPEREF_SIZE];
5595 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5597 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5598 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
5599 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
5600 if (strlen (nspace) == 0)
5601 return g_strdup_printf ("%s", name);
5603 return g_strdup_printf ("%s.%s", nspace, name);
5606 case MONO_TOKEN_TYPE_SPEC:
5607 return g_strdup_printf ("Typespec 0x%08x", type_token);
5609 g_assert_not_reached ();
5616 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
5619 return g_strdup_printf ("DynamicAssembly %s", image->name);
5621 switch (type_token & 0xff000000){
5622 case MONO_TOKEN_TYPE_DEF:
5623 return mono_stringify_assembly_name (&image->assembly->aname);
5625 case MONO_TOKEN_TYPE_REF: {
5626 MonoAssemblyName aname;
5627 guint32 cols [MONO_TYPEREF_SIZE];
5628 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5631 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5633 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
5634 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
5635 case MONO_RESOLTION_SCOPE_MODULE:
5637 return g_strdup ("");
5638 case MONO_RESOLTION_SCOPE_MODULEREF:
5640 return g_strdup ("");
5641 case MONO_RESOLTION_SCOPE_TYPEREF:
5643 return g_strdup ("");
5644 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
5645 mono_assembly_get_assemblyref (image, idx - 1, &aname);
5646 return mono_stringify_assembly_name (&aname);
5648 g_assert_not_reached ();
5652 case MONO_TOKEN_TYPE_SPEC:
5654 return g_strdup ("");
5656 g_assert_not_reached ();
5663 * mono_class_get_full:
5664 * @image: the image where the class resides
5665 * @type_token: the token for the class
5666 * @context: the generic context used to evaluate generic instantiations in
5668 * Returns: the MonoClass that represents @type_token in @image
5671 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5673 MonoClass *class = NULL;
5675 if (image->dynamic) {
5676 int table = mono_metadata_token_table (type_token);
5678 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
5679 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
5682 return mono_lookup_dynamic_token (image, type_token, context);
5685 switch (type_token & 0xff000000){
5686 case MONO_TOKEN_TYPE_DEF:
5687 class = mono_class_create_from_typedef (image, type_token);
5689 case MONO_TOKEN_TYPE_REF:
5690 class = mono_class_from_typeref (image, type_token);
5692 case MONO_TOKEN_TYPE_SPEC:
5693 class = mono_class_create_from_typespec (image, type_token, context);
5696 g_warning ("unknown token type %x", type_token & 0xff000000);
5697 g_assert_not_reached ();
5701 char *name = mono_class_name_from_token (image, type_token);
5702 char *assembly = mono_assembly_name_from_token (image, type_token);
5703 mono_loader_set_error_type_load (name, assembly);
5711 * mono_type_get_full:
5712 * @image: the image where the type resides
5713 * @type_token: the token for the type
5714 * @context: the generic context used to evaluate generic instantiations in
5716 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
5718 * Returns: the MonoType that represents @type_token in @image
5721 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5723 MonoType *type = NULL;
5724 gboolean inflated = FALSE;
5726 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
5728 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
5730 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
5731 MonoClass *class = mono_class_get_full (image, type_token, context);
5732 return class ? mono_class_get_type (class) : NULL;
5735 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated);
5738 char *name = mono_class_name_from_token (image, type_token);
5739 char *assembly = mono_assembly_name_from_token (image, type_token);
5740 mono_loader_set_error_type_load (name, assembly);
5745 MonoType *tmp = type;
5746 type = mono_class_get_type (mono_class_from_mono_type (type));
5747 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
5748 * A MonoClass::byval_arg of a generic type definion has type CLASS.
5749 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
5751 * The long term solution is to chaise this places and make then set MonoType::type correctly.
5753 if (type->type != tmp->type)
5756 mono_metadata_free_type (tmp);
5763 mono_class_get (MonoImage *image, guint32 type_token)
5765 return mono_class_get_full (image, type_token, NULL);
5769 * mono_image_init_name_cache:
5771 * Initializes the class name cache stored in image->name_cache.
5773 * LOCKING: Acquires the corresponding image lock.
5776 mono_image_init_name_cache (MonoImage *image)
5778 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5779 guint32 cols [MONO_TYPEDEF_SIZE];
5782 guint32 i, visib, nspace_index;
5783 GHashTable *name_cache2, *nspace_table;
5785 mono_image_lock (image);
5787 if (image->name_cache) {
5788 mono_image_unlock (image);
5792 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
5794 if (image->dynamic) {
5795 mono_image_unlock (image);
5799 /* Temporary hash table to avoid lookups in the nspace_table */
5800 name_cache2 = g_hash_table_new (NULL, NULL);
5802 for (i = 1; i <= t->rows; ++i) {
5803 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5804 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5806 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5807 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5809 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5811 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5812 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5814 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
5815 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5816 if (!nspace_table) {
5817 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5818 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5819 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5822 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
5825 /* Load type names from EXPORTEDTYPES table */
5827 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5828 guint32 cols [MONO_EXP_TYPE_SIZE];
5831 for (i = 0; i < t->rows; ++i) {
5832 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
5833 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
5834 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
5836 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
5837 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5838 if (!nspace_table) {
5839 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5840 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5841 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5844 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
5848 g_hash_table_destroy (name_cache2);
5849 mono_image_unlock (image);
5852 /*FIXME Only dynamic assemblies should allow this operation.*/
5854 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
5855 const char *name, guint32 index)
5857 GHashTable *nspace_table;
5858 GHashTable *name_cache;
5860 mono_image_lock (image);
5862 if (!image->name_cache)
5863 mono_image_init_name_cache (image);
5865 name_cache = image->name_cache;
5866 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
5867 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5868 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
5870 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
5872 mono_image_unlock (image);
5881 find_nocase (gpointer key, gpointer value, gpointer user_data)
5883 char *name = (char*)key;
5884 FindUserData *data = (FindUserData*)user_data;
5886 if (!data->value && (mono_utf8_strcasecmp (name, (char*)data->key) == 0))
5887 data->value = value;
5891 * mono_class_from_name_case:
5892 * @image: The MonoImage where the type is looked up in
5893 * @name_space: the type namespace
5894 * @name: the type short name.
5896 * Obtains a MonoClass with a given namespace and a given name which
5897 * is located in the given MonoImage. The namespace and name
5898 * lookups are case insensitive.
5901 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
5903 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5904 guint32 cols [MONO_TYPEDEF_SIZE];
5909 if (image->dynamic) {
5911 FindUserData user_data;
5913 mono_image_lock (image);
5915 if (!image->name_cache)
5916 mono_image_init_name_cache (image);
5918 user_data.key = name_space;
5919 user_data.value = NULL;
5920 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
5922 if (user_data.value) {
5923 GHashTable *nspace_table = (GHashTable*)user_data.value;
5925 user_data.key = name;
5926 user_data.value = NULL;
5928 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
5930 if (user_data.value)
5931 token = GPOINTER_TO_UINT (user_data.value);
5934 mono_image_unlock (image);
5937 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
5943 /* add a cache if needed */
5944 for (i = 1; i <= t->rows; ++i) {
5945 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5946 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5948 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5949 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5951 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5953 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5954 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5955 if (mono_utf8_strcasecmp (n, name) == 0 && mono_utf8_strcasecmp (nspace, name_space) == 0)
5956 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
5962 return_nested_in (MonoClass *class, char *nested)
5965 char *s = strchr (nested, '/');
5966 gpointer iter = NULL;
5973 while ((found = mono_class_get_nested_types (class, &iter))) {
5974 if (strcmp (found->name, nested) == 0) {
5976 return return_nested_in (found, s);
5984 search_modules (MonoImage *image, const char *name_space, const char *name)
5986 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
5987 MonoImage *file_image;
5992 * The EXPORTEDTYPES table only contains public types, so have to search the
5994 * Note: image->modules contains the contents of the MODULEREF table, while
5995 * the real module list is in the FILE table.
5997 for (i = 0; i < file_table->rows; i++) {
5998 guint32 cols [MONO_FILE_SIZE];
5999 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
6000 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
6003 file_image = mono_image_load_file_for_image (image, i + 1);
6005 class = mono_class_from_name (file_image, name_space, name);
6015 * mono_class_from_name:
6016 * @image: The MonoImage where the type is looked up in
6017 * @name_space: the type namespace
6018 * @name: the type short name.
6020 * Obtains a MonoClass with a given namespace and a given name which
6021 * is located in the given MonoImage.
6024 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
6026 GHashTable *nspace_table;
6027 MonoImage *loaded_image;
6034 if ((nested = strchr (name, '/'))) {
6035 int pos = nested - name;
6036 int len = strlen (name);
6039 memcpy (buf, name, len + 1);
6041 nested = buf + pos + 1;
6045 if (get_class_from_name) {
6046 gboolean res = get_class_from_name (image, name_space, name, &class);
6049 class = search_modules (image, name_space, name);
6051 return class ? return_nested_in (class, nested) : NULL;
6057 mono_image_lock (image);
6059 if (!image->name_cache)
6060 mono_image_init_name_cache (image);
6062 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
6065 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
6067 mono_image_unlock (image);
6069 if (!token && image->dynamic && image->modules) {
6070 /* Search modules as well */
6071 for (i = 0; i < image->module_count; ++i) {
6072 MonoImage *module = image->modules [i];
6074 class = mono_class_from_name (module, name_space, name);
6081 class = search_modules (image, name_space, name);
6089 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
6090 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
6091 guint32 cols [MONO_EXP_TYPE_SIZE];
6094 idx = mono_metadata_token_index (token);
6096 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
6098 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
6099 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
6100 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
6103 class = mono_class_from_name (loaded_image, name_space, name);
6105 return return_nested_in (class, nested);
6107 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
6108 guint32 assembly_idx;
6110 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
6112 mono_assembly_load_reference (image, assembly_idx - 1);
6113 g_assert (image->references [assembly_idx - 1]);
6114 if (image->references [assembly_idx - 1] == (gpointer)-1)
6117 /* FIXME: Cycle detection */
6118 return mono_class_from_name (image->references [assembly_idx - 1]->image, name_space, name);
6120 g_error ("not yet implemented");
6124 token = MONO_TOKEN_TYPE_DEF | token;
6126 class = mono_class_get (image, token);
6128 return return_nested_in (class, nested);
6133 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
6134 gboolean check_interfaces)
6136 g_assert (klassc->idepth > 0);
6137 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
6138 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
6140 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
6143 for (i = 0; i < klass->interface_count; i ++) {
6144 MonoClass *ic = klass->interfaces [i];
6149 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
6154 * MS.NET thinks interfaces are a subclass of Object, so we think it as
6157 if (klassc == mono_defaults.object_class)
6164 mono_class_has_variant_generic_params (MonoClass *klass)
6167 MonoGenericContainer *container;
6169 if (!klass->generic_class)
6172 container = klass->generic_class->container_class->generic_container;
6174 for (i = 0; i < container->type_argc; ++i)
6175 if (mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
6182 * mono_class_is_assignable_from:
6183 * @klass: the class to be assigned to
6184 * @oklass: the source class
6186 * Return: true if an instance of object oklass can be assigned to an
6187 * instance of object @klass
6190 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
6193 mono_class_init (klass);
6195 if (!oklass->inited)
6196 mono_class_init (oklass);
6198 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
6199 return klass == oklass;
6201 if (MONO_CLASS_IS_INTERFACE (klass)) {
6202 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
6205 /* interface_offsets might not be set for dynamic classes */
6206 if (oklass->reflection_info && !oklass->interface_bitmap)
6208 * oklass might be a generic type parameter but they have
6209 * interface_offsets set.
6211 return mono_reflection_call_is_assignable_to (oklass, klass);
6212 if (!oklass->interface_bitmap)
6213 /* Happens with generic instances of not-yet created dynamic types */
6215 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
6218 if (mono_class_has_variant_generic_params (klass)) {
6219 if (oklass->generic_class) {
6221 gboolean match = FALSE;
6222 MonoClass *container_class1 = klass->generic_class->container_class;
6223 MonoClass *container_class2 = oklass->generic_class->container_class;
6226 * Check whenever the generic definition of oklass implements the
6227 * generic definition of klass. The IMPLEMENTS_INTERFACE stuff is not usable
6228 * here since the relevant tables are not set up.
6230 for (i = 0; i < container_class2->interface_offsets_count; ++i)
6231 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)))
6235 MonoGenericContainer *container;
6237 container = klass->generic_class->container_class->generic_container;
6240 for (i = 0; i < container->type_argc; ++i) {
6241 MonoClass *param1_class = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [i]);
6242 MonoClass *param2_class = mono_class_from_mono_type (oklass->generic_class->context.class_inst->type_argv [i]);
6244 if (param1_class->valuetype != param2_class->valuetype) {
6249 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
6250 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
6252 if (param1_class != param2_class) {
6253 if ((mono_generic_container_get_param_info (container, i)->flags & MONO_GEN_PARAM_VARIANT) && mono_class_is_assignable_from (param1_class, param2_class))
6255 else if (((mono_generic_container_get_param_info (container, i)->flags & MONO_GEN_PARAM_COVARIANT) && mono_class_is_assignable_from (param2_class, param1_class)))
6269 } else if (klass->rank) {
6270 MonoClass *eclass, *eoclass;
6272 if (oklass->rank != klass->rank)
6275 /* vectors vs. one dimensional arrays */
6276 if (oklass->byval_arg.type != klass->byval_arg.type)
6279 eclass = klass->cast_class;
6280 eoclass = oklass->cast_class;
6283 * a is b does not imply a[] is b[] when a is a valuetype, and
6284 * b is a reference type.
6287 if (eoclass->valuetype) {
6288 if ((eclass == mono_defaults.enum_class) ||
6289 (eclass == mono_defaults.enum_class->parent) ||
6290 (eclass == mono_defaults.object_class))
6294 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
6295 } else if (mono_class_is_nullable (klass)) {
6296 if (mono_class_is_nullable (oklass))
6297 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
6299 return mono_class_is_assignable_from (klass->cast_class, oklass);
6300 } else if (klass == mono_defaults.object_class)
6303 return mono_class_has_parent (oklass, klass);
6306 /*Check if @candidate implements the interface @target*/
6308 mono_class_implement_interface_slow (MonoClass *target, MonoClass *candidate)
6313 if (candidate == target)
6316 /*A TypeBuilder can have more interfaces on tb->interfaces than on candidate->interfaces*/
6317 if (candidate->image->dynamic && !candidate->wastypebuilder) {
6318 MonoReflectionTypeBuilder *tb = candidate->reflection_info;
6320 if (tb->interfaces) {
6321 for (j = mono_array_length (tb->interfaces) - 1; j >= 0; --j) {
6322 MonoReflectionType *iface = mono_array_get (tb->interfaces, MonoReflectionType*, j);
6323 MonoClass *iface_class = mono_class_from_mono_type (iface->type);
6324 if (iface_class == target || mono_class_implement_interface_slow (target, iface_class))
6329 /*setup_interfaces don't mono_class_init anything*/
6330 mono_class_setup_interfaces (candidate);
6331 for (i = 0; i < candidate->interface_count; ++i) {
6332 if (candidate->interfaces [i] == target || mono_class_implement_interface_slow (target, candidate->interfaces [i]))
6336 candidate = candidate->parent;
6337 } while (candidate);
6343 * Check if @oklass can be assigned to @klass.
6344 * This function does the same as mono_class_is_assignable_from but is safe to be used from mono_class_init context.
6347 mono_class_is_assignable_from_slow (MonoClass *target, MonoClass *candidate)
6349 if (candidate == target)
6351 if (target == mono_defaults.object_class)
6354 /*setup_supertypes don't mono_class_init anything */
6355 mono_class_setup_supertypes (candidate);
6356 mono_class_setup_supertypes (target);
6358 if (mono_class_has_parent (candidate, target))
6361 /*If target is not an interface there is no need to check them.*/
6362 if (!MONO_CLASS_IS_INTERFACE (target))
6364 return mono_class_implement_interface_slow (target, candidate);
6368 * mono_class_get_cctor:
6369 * @klass: A MonoClass pointer
6371 * Returns: the static constructor of @klass if it exists, NULL otherwise.
6374 mono_class_get_cctor (MonoClass *klass)
6376 MonoCachedClassInfo cached_info;
6378 if (!klass->has_cctor)
6381 if (mono_class_get_cached_class_info (klass, &cached_info))
6382 return mono_get_method (klass->image, cached_info.cctor_token, klass);
6384 if (klass->generic_class && !klass->methods)
6385 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
6387 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
6391 * mono_class_get_finalizer:
6392 * @klass: The MonoClass pointer
6394 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
6397 mono_class_get_finalizer (MonoClass *klass)
6399 MonoCachedClassInfo cached_info;
6402 mono_class_init (klass);
6403 if (!klass->has_finalize)
6406 if (mono_class_get_cached_class_info (klass, &cached_info))
6407 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
6409 mono_class_setup_vtable (klass);
6410 return klass->vtable [finalize_slot];
6415 * mono_class_needs_cctor_run:
6416 * @klass: the MonoClass pointer
6417 * @caller: a MonoMethod describing the caller
6419 * Determines whenever the class has a static constructor and whenever it
6420 * needs to be called when executing CALLER.
6423 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
6427 method = mono_class_get_cctor (klass);
6429 return (method == caller) ? FALSE : TRUE;
6435 * mono_class_array_element_size:
6438 * Returns: the number of bytes an element of type @klass
6439 * uses when stored into an array.
6442 mono_class_array_element_size (MonoClass *klass)
6444 MonoType *type = &klass->byval_arg;
6447 switch (type->type) {
6450 case MONO_TYPE_BOOLEAN:
6454 case MONO_TYPE_CHAR:
6463 case MONO_TYPE_CLASS:
6464 case MONO_TYPE_STRING:
6465 case MONO_TYPE_OBJECT:
6466 case MONO_TYPE_SZARRAY:
6467 case MONO_TYPE_ARRAY:
6469 case MONO_TYPE_MVAR:
6470 return sizeof (gpointer);
6475 case MONO_TYPE_VALUETYPE:
6476 if (type->data.klass->enumtype) {
6477 type = mono_class_enum_basetype (type->data.klass);
6478 klass = klass->element_class;
6481 return mono_class_instance_size (klass) - sizeof (MonoObject);
6482 case MONO_TYPE_GENERICINST:
6483 type = &type->data.generic_class->container_class->byval_arg;
6486 case MONO_TYPE_VOID:
6490 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
6496 * mono_array_element_size:
6497 * @ac: pointer to a #MonoArrayClass
6499 * Returns: the size of single array element.
6502 mono_array_element_size (MonoClass *ac)
6504 g_assert (ac->rank);
6505 return ac->sizes.element_size;
6509 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
6510 MonoGenericContext *context)
6512 if (image->dynamic) {
6513 MonoClass *tmp_handle_class;
6514 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
6516 g_assert (tmp_handle_class);
6518 *handle_class = tmp_handle_class;
6520 if (tmp_handle_class == mono_defaults.typehandle_class)
6521 return &((MonoClass*)obj)->byval_arg;
6526 switch (token & 0xff000000) {
6527 case MONO_TOKEN_TYPE_DEF:
6528 case MONO_TOKEN_TYPE_REF:
6529 case MONO_TOKEN_TYPE_SPEC: {
6532 *handle_class = mono_defaults.typehandle_class;
6533 type = mono_type_get_full (image, token, context);
6536 mono_class_init (mono_class_from_mono_type (type));
6537 /* We return a MonoType* as handle */
6540 case MONO_TOKEN_FIELD_DEF: {
6542 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
6544 *handle_class = mono_defaults.fieldhandle_class;
6545 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
6548 mono_class_init (class);
6549 return mono_class_get_field (class, token);
6551 case MONO_TOKEN_METHOD_DEF:
6552 case MONO_TOKEN_METHOD_SPEC: {
6554 meth = mono_get_method_full (image, token, NULL, context);
6556 *handle_class = mono_defaults.methodhandle_class;
6559 case MONO_TOKEN_MEMBER_REF: {
6560 guint32 cols [MONO_MEMBERREF_SIZE];
6562 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
6563 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
6564 mono_metadata_decode_blob_size (sig, &sig);
6565 if (*sig == 0x6) { /* it's a field */
6567 MonoClassField *field;
6568 field = mono_field_from_token (image, token, &klass, context);
6570 *handle_class = mono_defaults.fieldhandle_class;
6574 meth = mono_get_method_full (image, token, NULL, context);
6576 *handle_class = mono_defaults.methodhandle_class;
6581 g_warning ("Unknown token 0x%08x in ldtoken", token);
6588 * This function might need to call runtime functions so it can't be part
6589 * of the metadata library.
6591 static MonoLookupDynamicToken lookup_dynamic = NULL;
6594 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
6596 lookup_dynamic = func;
6600 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
6602 MonoClass *handle_class;
6604 return lookup_dynamic (image, token, TRUE, &handle_class, context);
6608 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
6610 return lookup_dynamic (image, token, valid_token, handle_class, context);
6613 static MonoGetCachedClassInfo get_cached_class_info = NULL;
6616 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
6618 get_cached_class_info = func;
6622 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
6624 if (!get_cached_class_info)
6627 return get_cached_class_info (klass, res);
6631 mono_install_get_class_from_name (MonoGetClassFromName func)
6633 get_class_from_name = func;
6637 mono_class_get_image (MonoClass *klass)
6639 return klass->image;
6643 * mono_class_get_element_class:
6644 * @klass: the MonoClass to act on
6646 * Returns: the element class of an array or an enumeration.
6649 mono_class_get_element_class (MonoClass *klass)
6651 return klass->element_class;
6655 * mono_class_is_valuetype:
6656 * @klass: the MonoClass to act on
6658 * Returns: true if the MonoClass represents a ValueType.
6661 mono_class_is_valuetype (MonoClass *klass)
6663 return klass->valuetype;
6667 * mono_class_is_enum:
6668 * @klass: the MonoClass to act on
6670 * Returns: true if the MonoClass represents an enumeration.
6673 mono_class_is_enum (MonoClass *klass)
6675 return klass->enumtype;
6679 * mono_class_enum_basetype:
6680 * @klass: the MonoClass to act on
6682 * Returns: the underlying type representation for an enumeration.
6685 mono_class_enum_basetype (MonoClass *klass)
6687 if (klass->element_class == klass)
6691 return &klass->element_class->byval_arg;
6695 * mono_class_get_parent
6696 * @klass: the MonoClass to act on
6698 * Returns: the parent class for this class.
6701 mono_class_get_parent (MonoClass *klass)
6703 return klass->parent;
6707 * mono_class_get_nesting_type;
6708 * @klass: the MonoClass to act on
6710 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
6713 mono_class_get_nesting_type (MonoClass *klass)
6715 return klass->nested_in;
6719 * mono_class_get_rank:
6720 * @klass: the MonoClass to act on
6722 * Returns: the rank for the array (the number of dimensions).
6725 mono_class_get_rank (MonoClass *klass)
6731 * mono_class_get_flags:
6732 * @klass: the MonoClass to act on
6734 * The type flags from the TypeDef table from the metadata.
6735 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
6738 * Returns: the flags from the TypeDef table.
6741 mono_class_get_flags (MonoClass *klass)
6743 return klass->flags;
6747 * mono_class_get_name
6748 * @klass: the MonoClass to act on
6750 * Returns: the name of the class.
6753 mono_class_get_name (MonoClass *klass)
6759 * mono_class_get_namespace:
6760 * @klass: the MonoClass to act on
6762 * Returns: the namespace of the class.
6765 mono_class_get_namespace (MonoClass *klass)
6767 return klass->name_space;
6771 * mono_class_get_type:
6772 * @klass: the MonoClass to act on
6774 * This method returns the internal Type representation for the class.
6776 * Returns: the MonoType from the class.
6779 mono_class_get_type (MonoClass *klass)
6781 return &klass->byval_arg;
6785 * mono_class_get_type_token
6786 * @klass: the MonoClass to act on
6788 * This method returns type token for the class.
6790 * Returns: the type token for the class.
6793 mono_class_get_type_token (MonoClass *klass)
6795 return klass->type_token;
6799 * mono_class_get_byref_type:
6800 * @klass: the MonoClass to act on
6805 mono_class_get_byref_type (MonoClass *klass)
6807 return &klass->this_arg;
6811 * mono_class_num_fields:
6812 * @klass: the MonoClass to act on
6814 * Returns: the number of static and instance fields in the class.
6817 mono_class_num_fields (MonoClass *klass)
6819 return klass->field.count;
6823 * mono_class_num_methods:
6824 * @klass: the MonoClass to act on
6826 * Returns: the number of methods in the class.
6829 mono_class_num_methods (MonoClass *klass)
6831 return klass->method.count;
6835 * mono_class_num_properties
6836 * @klass: the MonoClass to act on
6838 * Returns: the number of properties in the class.
6841 mono_class_num_properties (MonoClass *klass)
6843 mono_class_setup_properties (klass);
6845 return klass->ext->property.count;
6849 * mono_class_num_events:
6850 * @klass: the MonoClass to act on
6852 * Returns: the number of events in the class.
6855 mono_class_num_events (MonoClass *klass)
6857 mono_class_setup_events (klass);
6859 return klass->ext->event.count;
6863 * mono_class_get_fields:
6864 * @klass: the MonoClass to act on
6866 * This routine is an iterator routine for retrieving the fields in a class.
6868 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6869 * iterate over all of the elements. When no more values are
6870 * available, the return value is NULL.
6872 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
6875 mono_class_get_fields (MonoClass* klass, gpointer *iter)
6877 MonoClassField* field;
6881 mono_class_setup_fields_locking (klass);
6882 if (klass->exception_type)
6884 /* start from the first */
6885 if (klass->field.count) {
6886 return *iter = &klass->fields [0];
6894 if (field < &klass->fields [klass->field.count]) {
6895 return *iter = field;
6901 * mono_class_get_methods
6902 * @klass: the MonoClass to act on
6904 * This routine is an iterator routine for retrieving the fields in a class.
6906 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6907 * iterate over all of the elements. When no more values are
6908 * available, the return value is NULL.
6910 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
6913 mono_class_get_methods (MonoClass* klass, gpointer *iter)
6915 MonoMethod** method;
6919 mono_class_init (klass);
6921 mono_class_setup_methods (klass);
6922 /* start from the first */
6923 if (klass->method.count) {
6924 *iter = &klass->methods [0];
6925 return klass->methods [0];
6933 if (method < &klass->methods [klass->method.count]) {
6941 * mono_class_get_virtual_methods:
6943 * Iterate over the virtual methods of KLASS.
6945 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
6948 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
6950 MonoMethod** method;
6953 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
6955 mono_class_setup_methods (klass);
6956 /* start from the first */
6957 method = &klass->methods [0];
6962 while (method < &klass->methods [klass->method.count]) {
6963 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
6967 if (method < &klass->methods [klass->method.count]) {
6974 /* Search directly in metadata to avoid calling setup_methods () */
6975 MonoMethod *res = NULL;
6981 start_index = GPOINTER_TO_UINT (*iter);
6984 for (i = start_index; i < klass->method.count; ++i) {
6985 guint32 cols [MONO_METHOD_SIZE];
6987 /* class->method.first points into the methodptr table */
6988 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6990 if (cols [MONO_METHOD_FLAGS] & METHOD_ATTRIBUTE_VIRTUAL)
6994 if (i < klass->method.count) {
6995 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6996 /* Add 1 here so the if (*iter) check fails */
6997 *iter = GUINT_TO_POINTER (i + 1);
7006 * mono_class_get_properties:
7007 * @klass: the MonoClass to act on
7009 * This routine is an iterator routine for retrieving the properties in a class.
7011 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7012 * iterate over all of the elements. When no more values are
7013 * available, the return value is NULL.
7015 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
7018 mono_class_get_properties (MonoClass* klass, gpointer *iter)
7020 MonoProperty* property;
7024 mono_class_init (klass);
7026 mono_class_setup_properties (klass);
7027 /* start from the first */
7028 if (klass->ext->property.count) {
7029 return *iter = &klass->ext->properties [0];
7037 if (property < &klass->ext->properties [klass->ext->property.count]) {
7038 return *iter = property;
7044 * mono_class_get_events:
7045 * @klass: the MonoClass to act on
7047 * This routine is an iterator routine for retrieving the properties in a class.
7049 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7050 * iterate over all of the elements. When no more values are
7051 * available, the return value is NULL.
7053 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
7056 mono_class_get_events (MonoClass* klass, gpointer *iter)
7062 mono_class_init (klass);
7064 mono_class_setup_events (klass);
7065 /* start from the first */
7066 if (klass->ext->event.count) {
7067 return *iter = &klass->ext->events [0];
7075 if (event < &klass->ext->events [klass->ext->event.count]) {
7076 return *iter = event;
7082 * mono_class_get_interfaces
7083 * @klass: the MonoClass to act on
7085 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
7087 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7088 * iterate over all of the elements. When no more values are
7089 * available, the return value is NULL.
7091 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
7094 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
7101 mono_class_init (klass);
7102 if (!klass->interfaces_inited)
7103 mono_class_setup_interfaces (klass);
7104 /* start from the first */
7105 if (klass->interface_count) {
7106 *iter = &klass->interfaces [0];
7107 return klass->interfaces [0];
7115 if (iface < &klass->interfaces [klass->interface_count]) {
7123 * mono_class_get_nested_types
7124 * @klass: the MonoClass to act on
7126 * This routine is an iterator routine for retrieving the nested types of a class.
7127 * This works only if @klass is non-generic, or a generic type definition.
7129 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7130 * iterate over all of the elements. When no more values are
7131 * available, the return value is NULL.
7133 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
7136 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
7144 mono_class_init (klass);
7145 if (!klass->nested_classes_inited) {
7146 if (!klass->type_token)
7147 klass->nested_classes_inited = TRUE;
7148 mono_loader_lock ();
7149 if (!klass->nested_classes_inited) {
7150 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
7153 guint32 cols [MONO_NESTED_CLASS_SIZE];
7154 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
7155 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
7156 mono_class_alloc_ext (klass);
7157 klass->ext->nested_classes = g_list_prepend_image (klass->image, klass->ext->nested_classes, nclass);
7159 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
7162 mono_memory_barrier ();
7163 klass->nested_classes_inited = TRUE;
7164 mono_loader_unlock ();
7168 /* start from the first */
7169 if (klass->ext && klass->ext->nested_classes) {
7170 *iter = klass->ext->nested_classes;
7171 return klass->ext->nested_classes->data;
7173 /* no nested types */
7187 * mono_field_get_name:
7188 * @field: the MonoClassField to act on
7190 * Returns: the name of the field.
7193 mono_field_get_name (MonoClassField *field)
7199 * mono_field_get_type:
7200 * @field: the MonoClassField to act on
7202 * Returns: MonoType of the field.
7205 mono_field_get_type (MonoClassField *field)
7211 * mono_field_get_parent:
7212 * @field: the MonoClassField to act on
7214 * Returns: MonoClass where the field was defined.
7217 mono_field_get_parent (MonoClassField *field)
7219 return field->parent;
7223 * mono_field_get_flags;
7224 * @field: the MonoClassField to act on
7226 * The metadata flags for a field are encoded using the
7227 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
7229 * Returns: the flags for the field.
7232 mono_field_get_flags (MonoClassField *field)
7234 return field->type->attrs;
7238 * mono_field_get_offset;
7239 * @field: the MonoClassField to act on
7241 * Returns: the field offset.
7244 mono_field_get_offset (MonoClassField *field)
7246 return field->offset;
7250 mono_field_get_rva (MonoClassField *field)
7254 MonoClass *klass = field->parent;
7256 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
7258 if (!klass->ext || !klass->ext->field_def_values) {
7259 mono_loader_lock ();
7260 mono_class_alloc_ext (klass);
7261 if (!klass->ext->field_def_values)
7262 klass->ext->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
7263 mono_loader_unlock ();
7266 field_index = mono_field_get_index (field);
7268 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
7269 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
7271 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
7272 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
7275 return klass->ext->field_def_values [field_index].data;
7279 * mono_field_get_data;
7280 * @field: the MonoClassField to act on
7282 * Returns: pointer to the metadata constant value or to the field
7283 * data if it has an RVA flag.
7286 mono_field_get_data (MonoClassField *field)
7288 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
7289 MonoTypeEnum def_type;
7291 return mono_class_get_field_default_value (field, &def_type);
7292 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
7293 return mono_field_get_rva (field);
7300 * mono_property_get_name:
7301 * @prop: the MonoProperty to act on
7303 * Returns: the name of the property
7306 mono_property_get_name (MonoProperty *prop)
7312 * mono_property_get_set_method
7313 * @prop: the MonoProperty to act on.
7315 * Returns: the setter method of the property (A MonoMethod)
7318 mono_property_get_set_method (MonoProperty *prop)
7324 * mono_property_get_get_method
7325 * @prop: the MonoProperty to act on.
7327 * Returns: the setter method of the property (A MonoMethod)
7330 mono_property_get_get_method (MonoProperty *prop)
7336 * mono_property_get_parent:
7337 * @prop: the MonoProperty to act on.
7339 * Returns: the MonoClass where the property was defined.
7342 mono_property_get_parent (MonoProperty *prop)
7344 return prop->parent;
7348 * mono_property_get_flags:
7349 * @prop: the MonoProperty to act on.
7351 * The metadata flags for a property are encoded using the
7352 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
7354 * Returns: the flags for the property.
7357 mono_property_get_flags (MonoProperty *prop)
7363 * mono_event_get_name:
7364 * @event: the MonoEvent to act on
7366 * Returns: the name of the event.
7369 mono_event_get_name (MonoEvent *event)
7375 * mono_event_get_add_method:
7376 * @event: The MonoEvent to act on.
7378 * Returns: the @add' method for the event (a MonoMethod).
7381 mono_event_get_add_method (MonoEvent *event)
7387 * mono_event_get_remove_method:
7388 * @event: The MonoEvent to act on.
7390 * Returns: the @remove method for the event (a MonoMethod).
7393 mono_event_get_remove_method (MonoEvent *event)
7395 return event->remove;
7399 * mono_event_get_raise_method:
7400 * @event: The MonoEvent to act on.
7402 * Returns: the @raise method for the event (a MonoMethod).
7405 mono_event_get_raise_method (MonoEvent *event)
7407 return event->raise;
7411 * mono_event_get_parent:
7412 * @event: the MonoEvent to act on.
7414 * Returns: the MonoClass where the event is defined.
7417 mono_event_get_parent (MonoEvent *event)
7419 return event->parent;
7423 * mono_event_get_flags
7424 * @event: the MonoEvent to act on.
7426 * The metadata flags for an event are encoded using the
7427 * EVENT_* constants. See the tabledefs.h file for details.
7429 * Returns: the flags for the event.
7432 mono_event_get_flags (MonoEvent *event)
7434 return event->attrs;
7438 * mono_class_get_method_from_name:
7439 * @klass: where to look for the method
7440 * @name_space: name of the method
7441 * @param_count: number of parameters. -1 for any number.
7443 * Obtains a MonoMethod with a given name and number of parameters.
7444 * It only works if there are no multiple signatures for any given method name.
7447 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
7449 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
7453 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
7455 MonoMethod *res = NULL;
7458 /* Search directly in the metadata to avoid calling setup_methods () */
7459 for (i = 0; i < klass->method.count; ++i) {
7460 guint32 cols [MONO_METHOD_SIZE];
7463 /* class->method.first points into the methodptr table */
7464 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
7466 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
7467 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
7468 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
7479 * mono_class_get_method_from_name_flags:
7480 * @klass: where to look for the method
7481 * @name_space: name of the method
7482 * @param_count: number of parameters. -1 for any number.
7483 * @flags: flags which must be set in the method
7485 * Obtains a MonoMethod with a given name and number of parameters.
7486 * It only works if there are no multiple signatures for any given method name.
7489 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
7491 MonoMethod *res = NULL;
7494 mono_class_init (klass);
7496 if (klass->generic_class && !klass->methods) {
7497 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
7499 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
7503 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
7504 mono_class_setup_methods (klass);
7505 for (i = 0; i < klass->method.count; ++i) {
7506 MonoMethod *method = klass->methods [i];
7508 if (method->name[0] == name [0] &&
7509 !strcmp (name, method->name) &&
7510 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
7511 ((method->flags & flags) == flags)) {
7518 res = find_method_in_metadata (klass, name, param_count, flags);
7525 * mono_class_set_failure:
7526 * @klass: class in which the failure was detected
7527 * @ex_type: the kind of exception/error to be thrown (later)
7528 * @ex_data: exception data (specific to each type of exception/error)
7530 * Keep a detected failure informations in the class for later processing.
7531 * Note that only the first failure is kept.
7533 * LOCKING: Acquires the loader lock.
7536 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
7538 if (klass->exception_type)
7541 mono_loader_lock ();
7542 klass->exception_type = ex_type;
7544 mono_image_property_insert (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
7545 mono_loader_unlock ();
7551 * mono_class_get_exception_data:
7553 * Return the exception_data property of KLASS.
7555 * LOCKING: Acquires the loader lock.
7558 mono_class_get_exception_data (MonoClass *klass)
7560 return mono_image_property_lookup (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
7564 * mono_classes_init:
7566 * Initialize the resources used by this module.
7569 mono_classes_init (void)
7571 mono_counters_register ("Inflated methods size",
7572 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
7573 mono_counters_register ("Inflated classes",
7574 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
7575 mono_counters_register ("Inflated classes size",
7576 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
7577 mono_counters_register ("MonoClass size",
7578 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
7579 mono_counters_register ("MonoClassExt size",
7580 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
7584 * mono_classes_cleanup:
7586 * Free the resources used by this module.
7589 mono_classes_cleanup (void)
7591 if (global_interface_bitset)
7592 mono_bitset_free (global_interface_bitset);
7596 * mono_class_get_exception_for_failure:
7597 * @klass: class in which the failure was detected
7599 * Return a constructed MonoException than the caller can then throw
7600 * using mono_raise_exception - or NULL if no failure is present (or
7601 * doesn't result in an exception).
7604 mono_class_get_exception_for_failure (MonoClass *klass)
7606 gpointer exception_data = mono_class_get_exception_data (klass);
7608 switch (klass->exception_type) {
7609 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
7610 MonoDomain *domain = mono_domain_get ();
7611 MonoSecurityManager* secman = mono_security_manager_get_methods ();
7612 MonoMethod *method = exception_data;
7613 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
7614 MonoObject *exc = NULL;
7618 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
7619 args [2] = mono_type_get_object (domain, &klass->byval_arg);
7620 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
7622 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
7623 return (MonoException*) exc;
7625 case MONO_EXCEPTION_TYPE_LOAD: {
7628 char *str = mono_type_get_full_name (klass);
7629 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
7630 name = mono_string_new (mono_domain_get (), str);
7632 ex = mono_get_exception_type_load (name, astr);
7636 case MONO_EXCEPTION_MISSING_METHOD: {
7637 char *class_name = exception_data;
7638 char *assembly_name = class_name + strlen (class_name) + 1;
7640 return mono_get_exception_missing_method (class_name, assembly_name);
7642 case MONO_EXCEPTION_MISSING_FIELD: {
7643 char *class_name = exception_data;
7644 char *member_name = class_name + strlen (class_name) + 1;
7646 return mono_get_exception_missing_field (class_name, member_name);
7648 case MONO_EXCEPTION_FILE_NOT_FOUND: {
7649 char *msg_format = exception_data;
7650 char *assembly_name = msg_format + strlen (msg_format) + 1;
7651 char *msg = g_strdup_printf (msg_format, assembly_name);
7654 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
7660 case MONO_EXCEPTION_BAD_IMAGE: {
7661 return mono_get_exception_bad_image_format (exception_data);
7664 MonoLoaderError *error;
7667 error = mono_loader_get_last_error ();
7669 ex = mono_loader_error_prepare_exception (error);
7673 /* TODO - handle other class related failures */
7680 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
7682 outer_klass = mono_class_get_generic_type_definition (outer_klass);
7683 inner_klass = mono_class_get_generic_type_definition (inner_klass);
7685 if (outer_klass == inner_klass)
7687 inner_klass = inner_klass->nested_in;
7688 } while (inner_klass);
7693 mono_class_get_generic_type_definition (MonoClass *klass)
7695 return klass->generic_class ? klass->generic_class->container_class : klass;
7699 * Check if @klass is a subtype of @parent ignoring generic instantiations.
7701 * Generic instantiations are ignored for all super types of @klass.
7703 * Visibility checks ignoring generic instantiations.
7706 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
7709 klass = mono_class_get_generic_type_definition (klass);
7710 parent = mono_class_get_generic_type_definition (parent);
7712 for (i = 0; i < klass->idepth; ++i) {
7713 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
7719 * Subtype can only access parent members with family protection if the site object
7720 * is subclass of Subtype. For example:
7721 * class A { protected int x; }
7723 * void valid_access () {
7727 * void invalid_access () {
7734 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
7736 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
7739 if (context_klass == NULL)
7741 /*if access_klass is not member_klass context_klass must be type compat*/
7742 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
7748 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
7751 if (accessing == accessed)
7753 if (!accessed || !accessing)
7755 mono_assembly_load_friends (accessed);
7756 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
7757 MonoAssemblyName *friend = tmp->data;
7758 /* Be conservative with checks */
7761 if (strcmp (accessing->aname.name, friend->name))
7763 if (friend->public_key_token [0]) {
7764 if (!accessing->aname.public_key_token [0])
7766 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
7775 * If klass is a generic type or if it is derived from a generic type, return the
7776 * MonoClass of the generic definition
7777 * Returns NULL if not found
7780 get_generic_definition_class (MonoClass *klass)
7783 if (klass->generic_class && klass->generic_class->container_class)
7784 return klass->generic_class->container_class;
7785 klass = klass->parent;
7791 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
7794 for (i = 0; i < ginst->type_argc; ++i) {
7795 MonoType *type = ginst->type_argv[i];
7796 switch (type->type) {
7797 case MONO_TYPE_SZARRAY:
7798 if (!can_access_type (access_klass, type->data.klass))
7801 case MONO_TYPE_ARRAY:
7802 if (!can_access_type (access_klass, type->data.array->eklass))
7806 if (!can_access_type (access_klass, mono_class_from_mono_type (type->data.type)))
7809 case MONO_TYPE_CLASS:
7810 case MONO_TYPE_VALUETYPE:
7811 case MONO_TYPE_GENERICINST:
7812 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
7820 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
7824 if (access_klass->element_class && !access_klass->enumtype)
7825 access_klass = access_klass->element_class;
7827 if (member_klass->element_class && !member_klass->enumtype)
7828 member_klass = member_klass->element_class;
7830 access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7832 if (member_klass->byval_arg.type == MONO_TYPE_VAR || member_klass->byval_arg.type == MONO_TYPE_MVAR)
7835 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
7838 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
7841 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
7844 /*Non nested type with nested visibility. We just fail it.*/
7845 if (access_level >= TYPE_ATTRIBUTE_NESTED_PRIVATE && access_level <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM && member_klass->nested_in == NULL)
7848 switch (access_level) {
7849 case TYPE_ATTRIBUTE_NOT_PUBLIC:
7850 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7852 case TYPE_ATTRIBUTE_PUBLIC:
7855 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
7858 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
7859 return is_nesting_type (member_klass, access_klass);
7861 case TYPE_ATTRIBUTE_NESTED_FAMILY:
7862 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7864 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
7865 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7867 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
7868 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
7869 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7871 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
7872 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
7873 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7878 /* FIXME: check visibility of type, too */
7880 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
7882 MonoClass *member_generic_def;
7883 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
7884 access_klass->generic_container) &&
7885 (member_generic_def = get_generic_definition_class (member_klass))) {
7886 MonoClass *access_container;
7888 if (access_klass->generic_container)
7889 access_container = access_klass;
7891 access_container = access_klass->generic_class->container_class;
7893 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
7897 /* Partition I 8.5.3.2 */
7898 /* the access level values are the same for fields and methods */
7899 switch (access_level) {
7900 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
7901 /* same compilation unit */
7902 return access_klass->image == member_klass->image;
7903 case FIELD_ATTRIBUTE_PRIVATE:
7904 return access_klass == member_klass;
7905 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
7906 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
7907 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
7910 case FIELD_ATTRIBUTE_ASSEMBLY:
7911 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7912 case FIELD_ATTRIBUTE_FAMILY:
7913 if (is_valid_family_access (access_klass, member_klass, context_klass))
7916 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
7917 if (is_valid_family_access (access_klass, member_klass, context_klass))
7919 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7920 case FIELD_ATTRIBUTE_PUBLIC:
7927 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
7929 /* FIXME: check all overlapping fields */
7930 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7932 MonoClass *nested = method->klass->nested_in;
7934 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7937 nested = nested->nested_in;
7944 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
7946 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7948 MonoClass *nested = method->klass->nested_in;
7950 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7953 nested = nested->nested_in;
7958 * with generics calls to explicit interface implementations can be expressed
7959 * directly: the method is private, but we must allow it. This may be opening
7960 * a hole or the generics code should handle this differently.
7961 * Maybe just ensure the interface type is public.
7963 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
7969 * mono_method_can_access_method_full:
7970 * @method: The caller method
7971 * @called: The called method
7972 * @context_klass: The static type on stack of the owner @called object used
7974 * This function must be used with instance calls, as they have more strict family accessibility.
7975 * It can be used with static methods, but context_klass should be NULL.
7977 * Returns: TRUE if caller have proper visibility and acessibility to @called
7980 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
7982 MonoClass *access_class = method->klass;
7983 MonoClass *member_class = called->klass;
7984 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7986 MonoClass *nested = access_class->nested_in;
7988 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7991 nested = nested->nested_in;
7998 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
8001 if (called->is_inflated) {
8002 MonoMethodInflated * infl = (MonoMethodInflated*)called;
8003 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
8012 * mono_method_can_access_field_full:
8013 * @method: The caller method
8014 * @field: The accessed field
8015 * @context_klass: The static type on stack of the owner @field object used
8017 * This function must be used with instance fields, as they have more strict family accessibility.
8018 * It can be used with static fields, but context_klass should be NULL.
8020 * Returns: TRUE if caller have proper visibility and acessibility to @field
8023 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
8025 MonoClass *access_class = method->klass;
8026 MonoClass *member_class = field->parent;
8027 /* FIXME: check all overlapping fields */
8028 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
8030 MonoClass *nested = access_class->nested_in;
8032 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
8035 nested = nested->nested_in;
8042 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
8048 * mono_type_is_valid_enum_basetype:
8049 * @type: The MonoType to check
8051 * Returns: TRUE if the type can be used as the basetype of an enum
8053 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
8054 switch (type->type) {
8057 case MONO_TYPE_BOOLEAN:
8060 case MONO_TYPE_CHAR:
8073 * mono_class_is_valid_enum:
8074 * @klass: An enum class to be validated
8076 * This method verify the required properties an enum should have.
8078 * Returns: TRUE if the informed enum class is valid
8080 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
8081 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
8082 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
8084 gboolean mono_class_is_valid_enum (MonoClass *klass) {
8085 MonoClassField * field;
8086 gpointer iter = NULL;
8087 gboolean found_base_field = FALSE;
8089 g_assert (klass->enumtype);
8090 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
8091 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
8095 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
8098 while ((field = mono_class_get_fields (klass, &iter))) {
8099 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
8100 if (found_base_field)
8102 found_base_field = TRUE;
8103 if (!mono_type_is_valid_enum_basetype (field->type))
8108 if (!found_base_field)
8111 if (klass->method.count > 0)
8118 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
8120 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
8123 static gboolean gshared_supported;
8126 mono_set_generic_sharing_supported (gboolean supported)
8128 gshared_supported = supported;
8132 * mono_class_generic_sharing_enabled:
8135 * Returns whether generic sharing is enabled for class.
8137 * This is a stop-gap measure to slowly introduce generic sharing
8138 * until we have all the issues sorted out, at which time this
8139 * function will disappear and generic sharing will always be enabled.
8142 mono_class_generic_sharing_enabled (MonoClass *class)
8144 static int generic_sharing = MONO_GENERIC_SHARING_NONE;
8145 static gboolean inited = FALSE;
8150 if (gshared_supported)
8151 generic_sharing = MONO_GENERIC_SHARING_ALL;
8153 generic_sharing = MONO_GENERIC_SHARING_NONE;
8155 if ((option = g_getenv ("MONO_GENERIC_SHARING"))) {
8156 if (strcmp (option, "corlib") == 0)
8157 generic_sharing = MONO_GENERIC_SHARING_CORLIB;
8158 else if (strcmp (option, "collections") == 0)
8159 generic_sharing = MONO_GENERIC_SHARING_COLLECTIONS;
8160 else if (strcmp (option, "all") == 0)
8161 generic_sharing = MONO_GENERIC_SHARING_ALL;
8162 else if (strcmp (option, "none") == 0)
8163 generic_sharing = MONO_GENERIC_SHARING_NONE;
8165 g_warning ("Unknown generic sharing option `%s'.", option);
8168 if (!gshared_supported)
8169 generic_sharing = MONO_GENERIC_SHARING_NONE;
8174 switch (generic_sharing) {
8175 case MONO_GENERIC_SHARING_NONE:
8177 case MONO_GENERIC_SHARING_ALL:
8179 case MONO_GENERIC_SHARING_CORLIB :
8180 return class->image == mono_defaults.corlib;
8181 case MONO_GENERIC_SHARING_COLLECTIONS:
8182 if (class->image != mono_defaults.corlib)
8184 while (class->nested_in)
8185 class = class->nested_in;
8186 return g_str_has_prefix (class->name_space, "System.Collections.Generic");
8188 g_assert_not_reached ();
8193 * mono_class_setup_interface_id:
8195 * Initializes MonoClass::interface_id if required.
8197 * LOCKING: Acquires the loader lock.
8200 mono_class_setup_interface_id (MonoClass *class)
8202 mono_loader_lock ();
8203 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
8204 class->interface_id = mono_get_unique_iid (class);
8205 mono_loader_unlock ();
8209 * mono_class_alloc_ext:
8211 * Allocate klass->ext if not already done.
8212 * LOCKING: Assumes the loader lock is held.
8215 mono_class_alloc_ext (MonoClass *klass)
8218 if (klass->generic_class) {
8219 klass->ext = g_new0 (MonoClassExt, 1);
8221 klass->ext = mono_image_alloc0 (klass->image, sizeof (MonoClassExt));
8223 class_ext_size += sizeof (MonoClassExt);
8228 * mono_class_setup_interfaces:
8230 * Initialize class->interfaces/interfaces_count.
8231 * LOCKING: Acquires the loader lock.
8234 mono_class_setup_interfaces (MonoClass *klass)
8238 if (klass->interfaces_inited)
8241 mono_loader_lock ();
8243 if (klass->interfaces_inited) {
8244 mono_loader_unlock ();
8248 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
8251 /* generic IList, ICollection, IEnumerable */
8252 klass->interface_count = 1;
8253 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
8255 args [0] = &klass->element_class->byval_arg;
8256 klass->interfaces [0] = mono_class_bind_generic_parameters (
8257 mono_defaults.generic_ilist_class, 1, args, FALSE);
8258 } else if (klass->generic_class) {
8259 MonoClass *gklass = klass->generic_class->container_class;
8261 klass->interface_count = gklass->interface_count;
8262 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
8263 for (i = 0; i < klass->interface_count; i++)
8264 klass->interfaces [i] = mono_class_inflate_generic_class (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class));
8267 mono_memory_barrier ();
8269 klass->interfaces_inited = TRUE;
8271 mono_loader_unlock ();