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 guint32 inflated_classes, inflated_classes_size, inflated_methods_size;
51 guint32 classes_size, class_ext_size;
53 /* Function supplied by the runtime to find classes by name using information from the AOT file */
54 static MonoGetClassFromName get_class_from_name = NULL;
56 static MonoClass * mono_class_create_from_typedef (MonoImage *image, guint32 type_token);
57 static gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
58 static gboolean can_access_type (MonoClass *access_klass, MonoClass *member_klass);
59 static MonoMethod* find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags);
60 static int generic_array_methods (MonoClass *class);
61 static void setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos);
63 static MonoMethod* mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter);
64 static char* mono_assembly_name_from_token (MonoImage *image, guint32 type_token);
65 static gboolean mono_class_is_variant_compatible (MonoClass *klass, MonoClass *oklass);
68 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
69 void (*mono_debugger_class_loaded_methods_func) (MonoClass *klass) = NULL;
72 * mono_class_from_typeref:
74 * @type_token: a TypeRef token
76 * Creates the MonoClass* structure representing the type defined by
77 * the typeref token valid inside @image.
78 * Returns: the MonoClass* representing the typeref token, NULL ifcould
82 mono_class_from_typeref (MonoImage *image, guint32 type_token)
84 guint32 cols [MONO_TYPEREF_SIZE];
85 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
87 const char *name, *nspace;
91 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
93 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
94 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
96 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
97 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
98 case MONO_RESOLTION_SCOPE_MODULE:
100 g_error ("null ResolutionScope not yet handled");
101 /* a typedef in disguise */
102 return mono_class_from_name (image, nspace, name);
103 case MONO_RESOLTION_SCOPE_MODULEREF:
104 module = mono_image_load_module (image, idx);
106 return mono_class_from_name (module, nspace, name);
108 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
111 human_name = mono_stringify_assembly_name (&image->assembly->aname);
112 mono_loader_set_error_type_load (msg, human_name);
118 case MONO_RESOLTION_SCOPE_TYPEREF: {
119 MonoClass *enclosing;
122 if (idx == mono_metadata_token_index (type_token)) {
123 mono_loader_set_error_bad_image (g_strdup_printf ("Image %s with self-referencing typeref token %08x.", image->name, type_token));
127 enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
131 if (enclosing->nested_classes_inited && enclosing->ext) {
132 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
133 for (tmp = enclosing->ext->nested_classes; tmp; tmp = tmp->next) {
135 if (strcmp (res->name, name) == 0)
139 /* Don't call mono_class_init as we might've been called by it recursively */
140 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
142 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
143 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
144 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
146 if (strcmp (nname, name) == 0)
147 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
149 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
152 g_warning ("TypeRef ResolutionScope not yet handled (%d) for %s.%s in image %s", idx, nspace, name, image->name);
155 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
159 if (idx > image->tables [MONO_TABLE_ASSEMBLYREF].rows) {
160 mono_loader_set_error_bad_image (g_strdup_printf ("Image %s with invalid assemblyref token %08x.", image->name, idx));
164 if (!image->references || !image->references [idx - 1])
165 mono_assembly_load_reference (image, idx - 1);
166 g_assert (image->references [idx - 1]);
168 /* If the assembly did not load, register this as a type load exception */
169 if (image->references [idx - 1] == REFERENCE_MISSING){
170 MonoAssemblyName aname;
173 mono_assembly_get_assemblyref (image, idx - 1, &aname);
174 human_name = mono_stringify_assembly_name (&aname);
175 mono_loader_set_error_assembly_load (human_name, image->assembly ? image->assembly->ref_only : FALSE);
181 return mono_class_from_name (image->references [idx - 1]->image, nspace, name);
186 mono_image_memdup (MonoImage *image, void *data, guint size)
188 void *res = mono_image_alloc (image, size);
189 memcpy (res, data, size);
193 /* Copy everything mono_metadata_free_array free. */
195 mono_dup_array_type (MonoImage *image, MonoArrayType *a)
198 a = mono_image_memdup (image, a, sizeof (MonoArrayType));
200 a->sizes = mono_image_memdup (image, a->sizes, a->numsizes * sizeof (int));
202 a->lobounds = mono_image_memdup (image, a->lobounds, a->numlobounds * sizeof (int));
204 a = g_memdup (a, sizeof (MonoArrayType));
206 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
208 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
213 /* Copy everything mono_metadata_free_method_signature free. */
215 mono_metadata_signature_deep_dup (MonoImage *image, MonoMethodSignature *sig)
219 sig = mono_metadata_signature_dup_full (image, sig);
221 sig->ret = mono_metadata_type_dup (image, sig->ret);
222 for (i = 0; i < sig->param_count; ++i)
223 sig->params [i] = mono_metadata_type_dup (image, sig->params [i]);
229 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
231 MonoAssembly *ta = klass->image->assembly;
233 g_string_append_printf (
234 str, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
236 ta->aname.major, ta->aname.minor, ta->aname.build, ta->aname.revision,
237 ta->aname.culture && *ta->aname.culture? ta->aname.culture: "neutral",
238 ta->aname.public_key_token [0] ? (char *)ta->aname.public_key_token : "null",
239 (ta->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
243 mono_type_name_check_byref (MonoType *type, GString *str)
246 g_string_append_c (str, '&');
250 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
251 MonoTypeNameFormat format)
255 switch (type->type) {
256 case MONO_TYPE_ARRAY: {
257 int i, rank = type->data.array->rank;
258 MonoTypeNameFormat nested_format;
260 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
261 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
263 mono_type_get_name_recurse (
264 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
265 g_string_append_c (str, '[');
267 g_string_append_c (str, '*');
268 for (i = 1; i < rank; i++)
269 g_string_append_c (str, ',');
270 g_string_append_c (str, ']');
272 mono_type_name_check_byref (type, str);
274 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
275 _mono_type_get_assembly_name (type->data.array->eklass, str);
278 case MONO_TYPE_SZARRAY: {
279 MonoTypeNameFormat nested_format;
281 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
282 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
284 mono_type_get_name_recurse (
285 &type->data.klass->byval_arg, str, FALSE, nested_format);
286 g_string_append (str, "[]");
288 mono_type_name_check_byref (type, str);
290 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
291 _mono_type_get_assembly_name (type->data.klass, str);
294 case MONO_TYPE_PTR: {
295 MonoTypeNameFormat nested_format;
297 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
298 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
300 mono_type_get_name_recurse (
301 type->data.type, str, FALSE, nested_format);
302 g_string_append_c (str, '*');
304 mono_type_name_check_byref (type, str);
306 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
307 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
312 if (!mono_generic_param_info (type->data.generic_param))
313 g_string_append_printf (str, "%s%d", type->type == MONO_TYPE_VAR ? "!" : "!!", type->data.generic_param->num);
315 g_string_append (str, mono_generic_param_info (type->data.generic_param)->name);
317 mono_type_name_check_byref (type, str);
321 klass = mono_class_from_mono_type (type);
322 if (klass->nested_in) {
323 mono_type_get_name_recurse (
324 &klass->nested_in->byval_arg, str, TRUE, format);
325 if (format == MONO_TYPE_NAME_FORMAT_IL)
326 g_string_append_c (str, '.');
328 g_string_append_c (str, '+');
329 } else if (*klass->name_space) {
330 g_string_append (str, klass->name_space);
331 g_string_append_c (str, '.');
333 if (format == MONO_TYPE_NAME_FORMAT_IL) {
334 char *s = strchr (klass->name, '`');
335 int len = s ? s - klass->name : strlen (klass->name);
337 g_string_append_len (str, klass->name, len);
339 g_string_append (str, klass->name);
342 if (klass->generic_class) {
343 MonoGenericClass *gclass = klass->generic_class;
344 MonoGenericInst *inst = gclass->context.class_inst;
345 MonoTypeNameFormat nested_format;
348 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
349 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
351 if (format == MONO_TYPE_NAME_FORMAT_IL)
352 g_string_append_c (str, '<');
354 g_string_append_c (str, '[');
355 for (i = 0; i < inst->type_argc; i++) {
356 MonoType *t = inst->type_argv [i];
359 g_string_append_c (str, ',');
360 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
361 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
362 g_string_append_c (str, '[');
363 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
364 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
365 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
366 g_string_append_c (str, ']');
368 if (format == MONO_TYPE_NAME_FORMAT_IL)
369 g_string_append_c (str, '>');
371 g_string_append_c (str, ']');
372 } else if (klass->generic_container &&
373 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
374 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
377 if (format == MONO_TYPE_NAME_FORMAT_IL)
378 g_string_append_c (str, '<');
380 g_string_append_c (str, '[');
381 for (i = 0; i < klass->generic_container->type_argc; i++) {
383 g_string_append_c (str, ',');
384 g_string_append (str, mono_generic_container_get_param_info (klass->generic_container, i)->name);
386 if (format == MONO_TYPE_NAME_FORMAT_IL)
387 g_string_append_c (str, '>');
389 g_string_append_c (str, ']');
392 mono_type_name_check_byref (type, str);
394 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
395 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
396 _mono_type_get_assembly_name (klass, str);
402 * mono_type_get_name_full:
404 * @format: the format for the return string.
407 * Returns: the string representation in a number of formats:
409 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
410 * returned in the formatrequired by System.Reflection, this is the
411 * inverse of mono_reflection_parse_type ().
413 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
414 * be used by the IL assembler.
416 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
418 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
421 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
425 result = g_string_new ("");
427 mono_type_get_name_recurse (type, result, FALSE, format);
429 return g_string_free (result, FALSE);
433 * mono_type_get_full_name:
436 * Returns: the string representation for type as required by System.Reflection.
437 * The inverse of mono_reflection_parse_type ().
440 mono_type_get_full_name (MonoClass *class)
442 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
446 * mono_type_get_name:
449 * Returns: the string representation for type as it would be represented in IL code.
452 mono_type_get_name (MonoType *type)
454 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
458 * mono_type_get_underlying_type:
461 * Returns: the MonoType for the underlying integer type if @type
462 * is an enum and byref is false, otherwise the type itself.
465 mono_type_get_underlying_type (MonoType *type)
467 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
468 return mono_class_enum_basetype (type->data.klass);
469 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
470 return mono_class_enum_basetype (type->data.generic_class->container_class);
475 * mono_class_is_open_constructed_type:
478 * Returns TRUE if type represents a generics open constructed type
479 * (not all the type parameters required for the instantiation have
483 mono_class_is_open_constructed_type (MonoType *t)
489 case MONO_TYPE_SZARRAY:
490 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
491 case MONO_TYPE_ARRAY:
492 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
494 return mono_class_is_open_constructed_type (t->data.type);
495 case MONO_TYPE_GENERICINST:
496 return t->data.generic_class->context.class_inst->is_open;
503 inflate_generic_type (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
505 mono_error_init (error);
507 switch (type->type) {
508 case MONO_TYPE_MVAR: {
510 int num = mono_type_get_generic_param_num (type);
511 MonoGenericInst *inst = context->method_inst;
512 if (!inst || !inst->type_argv)
514 if (num >= inst->type_argc) {
515 MonoGenericParamInfo *info = mono_generic_param_info (type->data.generic_param);
516 mono_error_set_bad_image (error, image, "MVAR %d (%s) cannot be expanded in this context with %d instantiations",
517 num, info ? info->name : "", inst->type_argc);
522 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
523 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
524 * ->byref and ->attrs from @type are propagated to the returned type.
526 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
527 nt->byref = type->byref;
528 nt->attrs = type->attrs;
531 case MONO_TYPE_VAR: {
533 int num = mono_type_get_generic_param_num (type);
534 MonoGenericInst *inst = context->class_inst;
537 if (num >= inst->type_argc) {
538 MonoGenericParamInfo *info = mono_generic_param_info (type->data.generic_param);
539 mono_error_set_bad_image (error, image, "VAR %d (%s) cannot be expanded in this context with %d instantiations",
540 num, info ? info->name : "", inst->type_argc);
543 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
544 nt->byref = type->byref;
545 nt->attrs = type->attrs;
548 case MONO_TYPE_SZARRAY: {
549 MonoClass *eclass = type->data.klass;
550 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context, error);
551 if (!inflated || !mono_error_ok (error))
553 nt = mono_metadata_type_dup (image, type);
554 nt->data.klass = mono_class_from_mono_type (inflated);
555 mono_metadata_free_type (inflated);
558 case MONO_TYPE_ARRAY: {
559 MonoClass *eclass = type->data.array->eklass;
560 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context, error);
561 if (!inflated || !mono_error_ok (error))
563 nt = mono_metadata_type_dup (image, type);
564 nt->data.array->eklass = mono_class_from_mono_type (inflated);
565 mono_metadata_free_type (inflated);
568 case MONO_TYPE_GENERICINST: {
569 MonoGenericClass *gclass = type->data.generic_class;
570 MonoGenericInst *inst;
572 if (!gclass->context.class_inst->is_open)
575 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context, error);
576 if (!mono_error_ok (error))
578 if (inst != gclass->context.class_inst)
579 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
581 if (gclass == type->data.generic_class)
584 nt = mono_metadata_type_dup (image, type);
585 nt->data.generic_class = gclass;
588 case MONO_TYPE_CLASS:
589 case MONO_TYPE_VALUETYPE: {
590 MonoClass *klass = type->data.klass;
591 MonoGenericContainer *container = klass->generic_container;
592 MonoGenericInst *inst;
593 MonoGenericClass *gclass = NULL;
599 /* We can't use context->class_inst directly, since it can have more elements */
600 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context, error);
601 if (!mono_error_ok (error))
603 if (inst == container->context.class_inst)
606 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
608 nt = mono_metadata_type_dup (image, type);
609 nt->type = MONO_TYPE_GENERICINST;
610 nt->data.generic_class = gclass;
620 mono_generic_class_get_context (MonoGenericClass *gclass)
622 return &gclass->context;
626 mono_class_get_context (MonoClass *class)
628 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
632 * mono_class_get_generic_container:
634 * Return the generic container of KLASS which should be a generic type definition.
636 MonoGenericContainer*
637 mono_class_get_generic_container (MonoClass *klass)
639 g_assert (klass->is_generic);
641 return klass->generic_container;
645 * mono_class_get_generic_class:
647 * Return the MonoGenericClass of KLASS, which should be a generic instance.
650 mono_class_get_generic_class (MonoClass *klass)
652 g_assert (klass->is_inflated);
654 return klass->generic_class;
658 * mono_class_inflate_generic_type_with_mempool:
659 * @mempool: a mempool
661 * @context: a generics context
662 * @error: error context
664 * The same as mono_class_inflate_generic_type, but allocates the MonoType
665 * from mempool if it is non-NULL. If it is NULL, the MonoType is
666 * allocated on the heap and is owned by the caller.
667 * The returned type can potentially be the same as TYPE, so it should not be
668 * modified by the caller, and it should be freed using mono_metadata_free_type ().
671 mono_class_inflate_generic_type_with_mempool (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
673 MonoType *inflated = NULL;
674 mono_error_init (error);
677 inflated = inflate_generic_type (image, type, context, error);
678 if (!mono_error_ok (error))
682 MonoType *shared = mono_metadata_get_shared_type (type);
687 return mono_metadata_type_dup (image, type);
691 mono_stats.inflated_type_count++;
696 * mono_class_inflate_generic_type:
698 * @context: a generics context
700 * If @type is a generic type and @context is not NULL, instantiate it using the
701 * generics context @context.
703 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
704 * on the heap and is owned by the caller. Returns NULL on error.
706 * @deprecated Please use mono_class_inflate_generic_type_checked instead
709 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
713 result = mono_class_inflate_generic_type_checked (type, context, &error);
715 if (!mono_error_ok (&error)) {
716 mono_error_cleanup (&error);
723 * mono_class_inflate_generic_type:
725 * @context: a generics context
726 * @error: error context to use
728 * If @type is a generic type and @context is not NULL, instantiate it using the
729 * generics context @context.
731 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
732 * on the heap and is owned by the caller.
735 mono_class_inflate_generic_type_checked (MonoType *type, MonoGenericContext *context, MonoError *error)
737 return mono_class_inflate_generic_type_with_mempool (NULL, type, context, error);
741 * mono_class_inflate_generic_type_no_copy:
743 * Same as inflate_generic_type_with_mempool, but return TYPE if no inflation
747 mono_class_inflate_generic_type_no_copy (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
749 MonoType *inflated = NULL;
751 mono_error_init (error);
753 inflated = inflate_generic_type (image, type, context, error);
754 if (!mono_error_ok (error))
761 mono_stats.inflated_type_count++;
766 mono_class_inflate_generic_class_checked (MonoClass *gklass, MonoGenericContext *context, MonoError *error)
771 inflated = mono_class_inflate_generic_type_checked (&gklass->byval_arg, context, error);
772 if (!mono_error_ok (error))
775 res = mono_class_from_mono_type (inflated);
776 mono_metadata_free_type (inflated);
781 * mono_class_inflate_generic_class:
783 * Inflate the class GKLASS with CONTEXT.
786 mono_class_inflate_generic_class (MonoClass *gklass, MonoGenericContext *context)
791 res = mono_class_inflate_generic_class_checked (gklass, context, &error);
792 g_assert (mono_error_ok (&error)); /*FIXME proper error handling*/
799 static MonoGenericContext
800 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with, MonoError *error)
802 MonoGenericInst *class_inst = NULL;
803 MonoGenericInst *method_inst = NULL;
804 MonoGenericContext res = { NULL, NULL };
806 mono_error_init (error);
808 if (context->class_inst) {
809 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with, error);
810 if (!mono_error_ok (error))
814 if (context->method_inst) {
815 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with, error);
816 if (!mono_error_ok (error))
820 res.class_inst = class_inst;
821 res.method_inst = method_inst;
827 * mono_class_inflate_generic_method:
828 * @method: a generic method
829 * @context: a generics context
831 * Instantiate the generic method @method using the generics context @context.
833 * Returns: the new instantiated method
836 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
838 return mono_class_inflate_generic_method_full (method, NULL, context);
842 * mono_class_inflate_generic_method_full:
844 * Instantiate method @method with the generic context @context.
845 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
846 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
849 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
852 MonoMethod *res = mono_class_inflate_generic_method_full_checked (method, klass_hint, context, &error);
853 if (!mono_error_ok (&error))
854 /*FIXME do proper error handling - on this case, kill this function. */
855 g_error ("Could not inflate generic method due to %s", mono_error_get_message (&error));
861 * mono_class_inflate_generic_method_full_checked:
862 * Same as mono_class_inflate_generic_method_full but return failure using @error.
865 mono_class_inflate_generic_method_full_checked (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context, MonoError *error)
868 MonoMethodInflated *iresult, *cached;
869 MonoMethodSignature *sig;
870 MonoGenericContext tmp_context;
871 gboolean is_mb_open = FALSE;
873 mono_error_init (error);
875 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
876 while (method->is_inflated) {
877 MonoGenericContext *method_context = mono_method_get_context (method);
878 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
880 tmp_context = inflate_generic_context (method_context, context, error);
881 if (!mono_error_ok (error))
883 context = &tmp_context;
885 if (mono_metadata_generic_context_equal (method_context, context))
888 method = imethod->declaring;
891 if (!method->is_generic && !method->klass->generic_container)
895 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
896 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
897 * This is opposite to the way non-SRE MethodInfos behave.
899 * This happens, for example, when we want to emit a recursive generic method. Given the following C# code:
901 * void Example<T> () {
905 * In Example, the method token must be encoded as: "void Example<!!0>()"
907 * The reference to the first generic argument, "!!0", must be explicit otherwise it won't be inflated
908 * properly. To get that we need to inflate the MethodBuilder with its own arguments.
910 * On the other hand, inflating a non-SRE generic method with its own arguments should
911 * return itself. For example:
913 * MethodInfo m = ... //m is a generic method definition
914 * MethodInfo res = m.MakeGenericMethod (m.GetGenericArguments ());
917 * To allow such scenarios we must allow inflation of MethodBuilder to happen in a diferent way than
918 * what happens with regular methods.
920 * There is one last touch to this madness, once a TypeBuilder is finished, IOW CreateType() is called,
921 * everything should behave like a regular type or method.
924 is_mb_open = method->is_generic &&
925 method->klass->image->dynamic && !method->klass->wastypebuilder && /* that is a MethodBuilder from an unfinished TypeBuilder */
926 context->method_inst == mono_method_get_generic_container (method)->context.method_inst; /* and it's been instantiated with its own arguments. */
928 iresult = g_new0 (MonoMethodInflated, 1);
929 iresult->context = *context;
930 iresult->declaring = method;
931 iresult->method.method.is_mb_open = is_mb_open;
933 if (!context->method_inst && method->is_generic)
934 iresult->context.method_inst = mono_method_get_generic_container (method)->context.method_inst;
936 if (!context->class_inst) {
937 g_assert (!iresult->declaring->klass->generic_class);
938 if (iresult->declaring->klass->generic_container)
939 iresult->context.class_inst = iresult->declaring->klass->generic_container->context.class_inst;
940 else if (iresult->declaring->klass->generic_class)
941 iresult->context.class_inst = iresult->declaring->klass->generic_class->context.class_inst;
945 cached = mono_method_inflated_lookup (iresult, FALSE);
947 mono_loader_unlock ();
949 return (MonoMethod*)cached;
952 mono_stats.inflated_method_count++;
954 inflated_methods_size += sizeof (MonoMethodInflated);
956 sig = mono_method_signature (method);
958 char *name = mono_type_get_full_name (method->klass);
959 mono_error_set_bad_image (error, method->klass->image, "Could not resolve signature of method %s:%s", name, method->name);
965 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
967 memcpy (&iresult->method.method, method, sizeof (MonoMethod));
970 result = (MonoMethod *) iresult;
971 result->is_inflated = TRUE;
972 result->is_generic = FALSE;
973 result->sre_method = FALSE;
974 result->signature = NULL;
975 result->is_mb_open = is_mb_open;
977 if (!context->method_inst) {
978 /* Set the generic_container of the result to the generic_container of method */
979 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
981 if (generic_container) {
982 result->is_generic = 1;
983 mono_method_set_generic_container (result, generic_container);
987 if (!klass_hint || !klass_hint->generic_class ||
988 klass_hint->generic_class->container_class != method->klass ||
989 klass_hint->generic_class->context.class_inst != context->class_inst)
992 if (method->klass->generic_container)
993 result->klass = klass_hint;
995 if (!result->klass) {
996 MonoType *inflated = inflate_generic_type (NULL, &method->klass->byval_arg, context, error);
997 if (!mono_error_ok (error))
1000 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
1002 mono_metadata_free_type (inflated);
1005 mono_method_inflated_lookup (iresult, TRUE);
1006 mono_loader_unlock ();
1010 mono_loader_unlock ();
1016 * mono_get_inflated_method:
1018 * Obsolete. We keep it around since it's mentioned in the public API.
1021 mono_get_inflated_method (MonoMethod *method)
1027 * mono_method_get_context_general:
1029 * @uninflated: handle uninflated methods?
1031 * Returns the generic context of a method or NULL if it doesn't have
1032 * one. For an inflated method that's the context stored in the
1033 * method. Otherwise it's in the method's generic container or in the
1034 * generic container of the method's class.
1037 mono_method_get_context_general (MonoMethod *method, gboolean uninflated)
1039 if (method->is_inflated) {
1040 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1041 return &imethod->context;
1045 if (method->is_generic)
1046 return &(mono_method_get_generic_container (method)->context);
1047 if (method->klass->generic_container)
1048 return &method->klass->generic_container->context;
1053 * mono_method_get_context:
1056 * Returns the generic context for method if it's inflated, otherwise
1060 mono_method_get_context (MonoMethod *method)
1062 return mono_method_get_context_general (method, FALSE);
1066 * mono_method_get_generic_container:
1068 * Returns the generic container of METHOD, which should be a generic method definition.
1069 * Returns NULL if METHOD is not a generic method definition.
1070 * LOCKING: Acquires the loader lock.
1072 MonoGenericContainer*
1073 mono_method_get_generic_container (MonoMethod *method)
1075 MonoGenericContainer *container;
1077 if (!method->is_generic)
1080 container = mono_image_property_lookup (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER);
1081 g_assert (container);
1087 * mono_method_set_generic_container:
1089 * Sets the generic container of METHOD to CONTAINER.
1090 * LOCKING: Acquires the loader lock.
1093 mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container)
1095 g_assert (method->is_generic);
1097 mono_image_property_insert (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER, container);
1101 * mono_class_find_enum_basetype:
1102 * @class: The enum class
1104 * Determine the basetype of an enum by iterating through its fields. We do this
1105 * in a separate function since it is cheaper than calling mono_class_setup_fields.
1108 mono_class_find_enum_basetype (MonoClass *class)
1110 MonoGenericContainer *container = NULL;
1111 MonoImage *m = class->image;
1112 const int top = class->field.count;
1115 g_assert (class->enumtype);
1117 if (class->generic_container)
1118 container = class->generic_container;
1119 else if (class->generic_class) {
1120 MonoClass *gklass = class->generic_class->container_class;
1122 container = gklass->generic_container;
1123 g_assert (container);
1127 * Fetch all the field information.
1129 for (i = 0; i < top; i++){
1131 guint32 cols [MONO_FIELD_SIZE];
1132 int idx = class->field.first + i;
1135 /* class->field.first and idx points into the fieldptr table */
1136 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1138 if (cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC) //no need to decode static fields
1141 if (!mono_verifier_verify_field_signature (class->image, cols [MONO_FIELD_SIGNATURE], NULL))
1144 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1145 mono_metadata_decode_value (sig, &sig);
1146 /* FIELD signature == 0x06 */
1150 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1153 if (class->generic_class) {
1154 //FIXME do we leak here?
1155 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
1156 ftype->attrs = cols [MONO_FIELD_FLAGS];
1166 * Checks for MonoClass::exception_type without resolving all MonoType's into MonoClass'es
1169 mono_type_has_exceptions (MonoType *type)
1171 switch (type->type) {
1172 case MONO_TYPE_CLASS:
1173 case MONO_TYPE_VALUETYPE:
1174 case MONO_TYPE_SZARRAY:
1175 return type->data.klass->exception_type;
1176 case MONO_TYPE_ARRAY:
1177 return type->data.array->eklass->exception_type;
1178 case MONO_TYPE_GENERICINST:
1179 return mono_generic_class_get_class (type->data.generic_class)->exception_type;
1187 * Allocate memory for some data belonging to CLASS, either from its image's mempool,
1191 mono_class_alloc (MonoClass *class, int size)
1193 if (class->generic_class)
1195 * This should be freed in free_generic_class () in metadata.c.
1196 * FIXME: It would be better to allocate this from the image set mempool, by
1197 * adding an image_set field to MonoGenericClass.
1199 return g_malloc (size);
1201 return mono_image_alloc (class->image, size);
1205 mono_class_alloc0 (MonoClass *class, int size)
1209 res = mono_class_alloc (class, size);
1210 memset (res, 0, size);
1214 #define mono_class_new0(class,struct_type, n_structs) \
1215 ((struct_type *) mono_class_alloc0 ((class), ((gsize) sizeof (struct_type)) * ((gsize) (n_structs))))
1218 * mono_class_setup_fields:
1219 * @class: The class to initialize
1221 * Initializes the class->fields.
1222 * LOCKING: Assumes the loader lock is held.
1225 mono_class_setup_fields (MonoClass *class)
1228 MonoImage *m = class->image;
1229 int top = class->field.count;
1230 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1231 int i, blittable = TRUE;
1232 guint32 real_size = 0;
1233 guint32 packing_size = 0;
1234 gboolean explicit_size;
1235 MonoClassField *field;
1236 MonoGenericContainer *container = NULL;
1237 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
1239 if (class->size_inited)
1242 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1244 * This happens when a generic instance of an unfinished generic typebuilder
1245 * is used as an element type for creating an array type. We can't initialize
1246 * the fields of this class using the fields of gklass, since gklass is not
1247 * finished yet, fields could be added to it later.
1253 mono_class_setup_fields (gtd);
1254 if (gtd->exception_type) {
1255 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1259 top = gtd->field.count;
1260 class->field.first = gtd->field.first;
1261 class->field.count = gtd->field.count;
1264 class->instance_size = 0;
1266 class->sizes.class_size = 0;
1268 if (class->parent) {
1269 /* For generic instances, class->parent might not have been initialized */
1270 mono_class_init (class->parent);
1271 if (!class->parent->size_inited) {
1272 mono_class_setup_fields (class->parent);
1273 if (class->parent->exception_type) {
1274 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1278 class->instance_size += class->parent->instance_size;
1279 class->min_align = class->parent->min_align;
1280 /* we use |= since it may have been set already */
1281 class->has_references |= class->parent->has_references;
1282 blittable = class->parent->blittable;
1284 class->instance_size = sizeof (MonoObject);
1285 class->min_align = 1;
1288 /* We can't really enable 16 bytes alignment until the GC supports it.
1289 The whole layout/instance size code must be reviewed because we do alignment calculation in terms of the
1290 boxed instance, which leads to unexplainable holes at the beginning of an object embedding a simd type.
1291 Bug #506144 is an example of this issue.
1293 if (class->simd_type)
1294 class->min_align = 16;
1296 /* Get the real size */
1297 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
1299 if (explicit_size) {
1300 g_assert ((packing_size & 0xfffffff0) == 0);
1301 class->packing_size = packing_size;
1302 real_size += class->instance_size;
1306 if (explicit_size && real_size) {
1307 class->instance_size = MAX (real_size, class->instance_size);
1309 class->size_inited = 1;
1310 class->blittable = blittable;
1314 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1317 /* Prevent infinite loops if the class references itself */
1318 class->size_inited = 1;
1320 class->fields = mono_class_alloc0 (class, sizeof (MonoClassField) * top);
1322 if (class->generic_container) {
1323 container = class->generic_container;
1325 container = gtd->generic_container;
1326 g_assert (container);
1330 * Fetch all the field information.
1332 for (i = 0; i < top; i++){
1333 int idx = class->field.first + i;
1334 field = &class->fields [i];
1336 field->parent = class;
1339 MonoClassField *gfield = >d->fields [i];
1341 field->name = mono_field_get_name (gfield);
1342 /*This memory must come from the image mempool as we don't have a chance to free it.*/
1343 field->type = mono_class_inflate_generic_type_no_copy (class->image, gfield->type, mono_class_get_context (class), &error);
1344 if (!mono_error_ok (&error)) {
1345 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", i, mono_error_get_message (&error));
1346 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
1348 mono_error_cleanup (&error);
1351 g_assert (field->type->attrs == gfield->type->attrs);
1352 if (mono_field_is_deleted (field))
1354 field->offset = gfield->offset;
1357 guint32 cols [MONO_FIELD_SIZE];
1359 /* class->field.first and idx points into the fieldptr table */
1360 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1361 /* The name is needed for fieldrefs */
1362 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
1363 if (!mono_verifier_verify_field_signature (class->image, cols [MONO_FIELD_SIGNATURE], NULL)) {
1364 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1367 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1368 mono_metadata_decode_value (sig, &sig);
1369 /* FIELD signature == 0x06 */
1370 g_assert (*sig == 0x06);
1371 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1373 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1376 if (mono_field_is_deleted (field))
1378 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1380 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1381 field->offset = offset;
1383 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1384 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Missing field layout info for %s", field->name));
1387 if (field->offset < -1) { /*-1 is used to encode special static fields */
1388 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Invalid negative field offset %d for %s", field->offset, field->name));
1394 /* Only do these checks if we still think this type is blittable */
1395 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1396 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1399 MonoClass *field_class = mono_class_from_mono_type (field->type);
1401 mono_class_setup_fields (field_class);
1402 if (field_class->exception_type) {
1403 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1407 if (!field_class || !field_class->blittable)
1412 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1413 class->cast_class = class->element_class = mono_class_from_mono_type (field->type);
1414 blittable = class->element_class->blittable;
1417 if (mono_type_has_exceptions (field->type)) {
1418 char *class_name = mono_type_get_full_name (class);
1419 char *type_name = mono_type_full_name (field->type);
1421 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1422 g_warning ("Invalid type %s for instance field %s:%s", type_name, class_name, field->name);
1423 g_free (class_name);
1427 /* The def_value of fields is compute lazily during vtable creation */
1430 if (class == mono_defaults.string_class)
1433 class->blittable = blittable;
1435 if (class->enumtype && !mono_class_enum_basetype (class)) {
1436 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1439 if (explicit_size && real_size) {
1440 class->instance_size = MAX (real_size, class->instance_size);
1443 if (class->exception_type)
1445 mono_class_layout_fields (class);
1447 /*valuetypes can't be neither bigger than 1Mb or empty. */
1448 if (class->valuetype && (class->instance_size <= 0 || class->instance_size > (0x100000 + sizeof (MonoObject))))
1449 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1453 * mono_class_setup_fields_locking:
1454 * @class: The class to initialize
1456 * Initializes the class->fields array of fields.
1457 * Aquires the loader lock.
1460 mono_class_setup_fields_locking (MonoClass *class)
1462 mono_loader_lock ();
1463 mono_class_setup_fields (class);
1464 mono_loader_unlock ();
1468 * mono_class_has_references:
1470 * Returns whenever @klass->has_references is set, initializing it if needed.
1471 * Aquires the loader lock.
1474 mono_class_has_references (MonoClass *klass)
1476 if (klass->init_pending) {
1477 /* Be conservative */
1480 mono_class_init (klass);
1482 return klass->has_references;
1486 /* useful until we keep track of gc-references in corlib etc. */
1488 #define IS_GC_REFERENCE(t) FALSE
1490 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1494 * mono_type_get_basic_type_from_generic:
1497 * Returns a closed type corresponding to the possibly open type
1501 mono_type_get_basic_type_from_generic (MonoType *type)
1503 /* When we do generic sharing we let type variables stand for reference types. */
1504 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1505 return &mono_defaults.object_class->byval_arg;
1510 * mono_class_layout_fields:
1513 * Compute the placement of fields inside an object or struct, according to
1514 * the layout rules and set the following fields in @class:
1515 * - has_references (if the class contains instance references firled or structs that contain references)
1516 * - has_static_refs (same, but for static fields)
1517 * - instance_size (size of the object in memory)
1518 * - class_size (size needed for the static fields)
1519 * - size_inited (flag set when the instance_size is set)
1521 * LOCKING: this is supposed to be called with the loader lock held.
1524 mono_class_layout_fields (MonoClass *class)
1527 const int top = class->field.count;
1528 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1529 guint32 pass, passes, real_size;
1530 gboolean gc_aware_layout = FALSE;
1531 MonoClassField *field;
1534 * When we do generic sharing we need to have layout
1535 * information for open generic classes (either with a generic
1536 * context containing type variables or with a generic
1537 * container), so we don't return in that case anymore.
1541 * Enable GC aware auto layout: in this mode, reference
1542 * fields are grouped together inside objects, increasing collector
1544 * Requires that all classes whose layout is known to native code be annotated
1545 * with [StructLayout (LayoutKind.Sequential)]
1546 * Value types have gc_aware_layout disabled by default, as per
1547 * what the default is for other runtimes.
1549 /* corlib is missing [StructLayout] directives in many places */
1550 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1551 if (class->image != mono_defaults.corlib &&
1552 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1553 gc_aware_layout = TRUE;
1554 /* from System.dll, used in metadata/process.h */
1555 if (strcmp (class->name, "ProcessStartInfo") == 0)
1556 gc_aware_layout = FALSE;
1559 /* Compute klass->has_references */
1561 * Process non-static fields first, since static fields might recursively
1562 * refer to the class itself.
1564 for (i = 0; i < top; i++) {
1567 field = &class->fields [i];
1569 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1570 ftype = mono_type_get_underlying_type (field->type);
1571 ftype = mono_type_get_basic_type_from_generic (ftype);
1572 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1573 class->has_references = TRUE;
1577 for (i = 0; i < top; i++) {
1580 field = &class->fields [i];
1582 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1583 ftype = mono_type_get_underlying_type (field->type);
1584 ftype = mono_type_get_basic_type_from_generic (ftype);
1585 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1586 class->has_static_refs = TRUE;
1590 for (i = 0; i < top; i++) {
1593 field = &class->fields [i];
1595 ftype = mono_type_get_underlying_type (field->type);
1596 ftype = mono_type_get_basic_type_from_generic (ftype);
1597 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1598 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1599 class->has_static_refs = TRUE;
1601 class->has_references = TRUE;
1606 * Compute field layout and total size (not considering static fields)
1610 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1611 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1613 if (gc_aware_layout)
1618 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1622 real_size = class->parent->instance_size;
1624 real_size = sizeof (MonoObject);
1626 for (pass = 0; pass < passes; ++pass) {
1627 for (i = 0; i < top; i++){
1632 field = &class->fields [i];
1634 if (mono_field_is_deleted (field))
1636 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1639 ftype = mono_type_get_underlying_type (field->type);
1640 ftype = mono_type_get_basic_type_from_generic (ftype);
1641 if (gc_aware_layout) {
1642 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1651 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1652 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1653 /* This field is a hack inserted by MCS to empty structures */
1657 size = mono_type_size (field->type, &align);
1659 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1660 align = class->packing_size ? MIN (class->packing_size, align): align;
1661 /* if the field has managed references, we need to force-align it
1664 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1665 align = MAX (align, sizeof (gpointer));
1667 class->min_align = MAX (align, class->min_align);
1668 field->offset = real_size;
1670 field->offset += align - 1;
1671 field->offset &= ~(align - 1);
1673 /*TypeBuilders produce all sort of weird things*/
1674 g_assert (class->image->dynamic || field->offset > 0);
1675 real_size = field->offset + size;
1678 class->instance_size = MAX (real_size, class->instance_size);
1680 if (class->instance_size & (class->min_align - 1)) {
1681 class->instance_size += class->min_align - 1;
1682 class->instance_size &= ~(class->min_align - 1);
1686 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1688 for (i = 0; i < top; i++) {
1693 field = &class->fields [i];
1696 * There must be info about all the fields in a type if it
1697 * uses explicit layout.
1700 if (mono_field_is_deleted (field))
1702 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1705 size = mono_type_size (field->type, &align);
1706 class->min_align = MAX (align, class->min_align);
1709 * When we get here, field->offset is already set by the
1710 * loader (for either runtime fields or fields loaded from metadata).
1711 * The offset is from the start of the object: this works for both
1712 * classes and valuetypes.
1714 field->offset += sizeof (MonoObject);
1715 ftype = mono_type_get_underlying_type (field->type);
1716 ftype = mono_type_get_basic_type_from_generic (ftype);
1717 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1718 if (field->offset % sizeof (gpointer)) {
1719 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1726 real_size = MAX (real_size, size + field->offset);
1728 class->instance_size = MAX (real_size, class->instance_size);
1732 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1734 * For small structs, set min_align to at least the struct size to improve
1735 * performance, and since the JIT memset/memcpy code assumes this and generates
1736 * unaligned accesses otherwise. See #78990 for a testcase.
1738 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1739 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1742 class->size_inited = 1;
1745 * Compute static field layout and size
1747 for (i = 0; i < top; i++){
1751 field = &class->fields [i];
1753 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1755 if (mono_field_is_deleted (field))
1758 if (mono_type_has_exceptions (field->type)) {
1759 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1763 size = mono_type_size (field->type, &align);
1764 field->offset = class->sizes.class_size;
1765 /*align is always non-zero here*/
1766 field->offset += align - 1;
1767 field->offset &= ~(align - 1);
1768 class->sizes.class_size = field->offset + size;
1773 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1777 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1778 method->klass = class;
1779 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1780 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1781 method->signature = sig;
1782 method->name = name;
1785 if (name [0] == '.') {
1786 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1788 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1794 * mono_class_setup_methods:
1797 * Initializes the 'methods' array in the klass.
1798 * Calling this method should be avoided if possible since it allocates a lot
1799 * of long-living MonoMethod structures.
1800 * Methods belonging to an interface are assigned a sequential slot starting
1803 * On failure this function sets class->exception_type
1806 mono_class_setup_methods (MonoClass *class)
1809 MonoMethod **methods;
1814 mono_loader_lock ();
1816 if (class->methods) {
1817 mono_loader_unlock ();
1821 if (class->generic_class) {
1823 MonoClass *gklass = class->generic_class->container_class;
1825 mono_class_init (gklass);
1826 if (!gklass->exception_type)
1827 mono_class_setup_methods (gklass);
1828 if (gklass->exception_type) {
1829 /*FIXME make exception_data less opaque so it's possible to dup it here*/
1830 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
1831 mono_loader_unlock ();
1835 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1836 class->method.count = gklass->method.count;
1837 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * (class->method.count + 1));
1839 for (i = 0; i < class->method.count; i++) {
1840 methods [i] = mono_class_inflate_generic_method_full_checked (
1841 gklass->methods [i], class, mono_class_get_context (class), &error);
1842 if (!mono_error_ok (&error)) {
1843 char *method = mono_method_full_name (gklass->methods [i], TRUE);
1844 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Could not inflate method %s due to %s", method, mono_error_get_message (&error)));
1847 mono_error_cleanup (&error);
1848 mono_loader_unlock ();
1852 } else if (class->rank) {
1854 MonoMethod *amethod;
1855 MonoMethodSignature *sig;
1856 int count_generic = 0, first_generic = 0;
1859 class->method.count = 3 + (class->rank > 1? 2: 1);
1861 mono_class_setup_interfaces (class, &error);
1862 g_assert (mono_error_ok (&error)); /*FIXME can this fail for array types?*/
1864 if (class->interface_count) {
1865 count_generic = generic_array_methods (class);
1866 first_generic = class->method.count;
1867 class->method.count += class->interface_count * count_generic;
1870 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * class->method.count);
1872 sig = mono_metadata_signature_alloc (class->image, class->rank);
1873 sig->ret = &mono_defaults.void_class->byval_arg;
1874 sig->pinvoke = TRUE;
1875 sig->hasthis = TRUE;
1876 for (i = 0; i < class->rank; ++i)
1877 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1879 amethod = create_array_method (class, ".ctor", sig);
1880 methods [method_num++] = amethod;
1881 if (class->rank > 1) {
1882 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1883 sig->ret = &mono_defaults.void_class->byval_arg;
1884 sig->pinvoke = TRUE;
1885 sig->hasthis = TRUE;
1886 for (i = 0; i < class->rank * 2; ++i)
1887 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1889 amethod = create_array_method (class, ".ctor", sig);
1890 methods [method_num++] = amethod;
1892 /* element Get (idx11, [idx2, ...]) */
1893 sig = mono_metadata_signature_alloc (class->image, class->rank);
1894 sig->ret = &class->element_class->byval_arg;
1895 sig->pinvoke = TRUE;
1896 sig->hasthis = TRUE;
1897 for (i = 0; i < class->rank; ++i)
1898 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1899 amethod = create_array_method (class, "Get", sig);
1900 methods [method_num++] = amethod;
1901 /* element& Address (idx11, [idx2, ...]) */
1902 sig = mono_metadata_signature_alloc (class->image, class->rank);
1903 sig->ret = &class->element_class->this_arg;
1904 sig->pinvoke = TRUE;
1905 sig->hasthis = TRUE;
1906 for (i = 0; i < class->rank; ++i)
1907 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1908 amethod = create_array_method (class, "Address", sig);
1909 methods [method_num++] = amethod;
1910 /* void Set (idx11, [idx2, ...], element) */
1911 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1912 sig->ret = &mono_defaults.void_class->byval_arg;
1913 sig->pinvoke = TRUE;
1914 sig->hasthis = TRUE;
1915 for (i = 0; i < class->rank; ++i)
1916 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1917 sig->params [i] = &class->element_class->byval_arg;
1918 amethod = create_array_method (class, "Set", sig);
1919 methods [method_num++] = amethod;
1921 for (i = 0; i < class->interface_count; i++)
1922 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1924 methods = mono_class_alloc (class, sizeof (MonoMethod*) * class->method.count);
1925 for (i = 0; i < class->method.count; ++i) {
1926 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1927 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1931 if (MONO_CLASS_IS_INTERFACE (class)) {
1933 /*Only assign slots to virtual methods as interfaces are allowed to have static methods.*/
1934 for (i = 0; i < class->method.count; ++i) {
1935 if (methods [i]->flags & METHOD_ATTRIBUTE_VIRTUAL)
1936 methods [i]->slot = slot++;
1940 /* Needed because of the double-checking locking pattern */
1941 mono_memory_barrier ();
1943 class->methods = methods;
1945 if (mono_debugger_class_loaded_methods_func)
1946 mono_debugger_class_loaded_methods_func (class);
1948 mono_loader_unlock ();
1952 * mono_class_get_method_by_index:
1954 * Returns class->methods [index], initializing class->methods if neccesary.
1956 * LOCKING: Acquires the loader lock.
1959 mono_class_get_method_by_index (MonoClass *class, int index)
1961 /* Avoid calling setup_methods () if possible */
1962 if (class->generic_class && !class->methods) {
1963 MonoClass *gklass = class->generic_class->container_class;
1966 m = mono_class_inflate_generic_method_full (
1967 gklass->methods [index], class, mono_class_get_context (class));
1969 * If setup_methods () is called later for this class, no duplicates are created,
1970 * since inflate_generic_method guarantees that only one instance of a method
1971 * is created for each context.
1974 mono_class_setup_methods (class);
1975 g_assert (m == class->methods [index]);
1979 mono_class_setup_methods (class);
1980 if (class->exception_type) /*FIXME do proper error handling*/
1982 g_assert (index >= 0 && index < class->method.count);
1983 return class->methods [index];
1988 * mono_class_get_inflated_method:
1990 * Given an inflated class CLASS and a method METHOD which should be a method of
1991 * CLASS's generic definition, return the inflated method corresponding to METHOD.
1994 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
1996 MonoClass *gklass = class->generic_class->container_class;
1999 g_assert (method->klass == gklass);
2001 mono_class_setup_methods (gklass);
2002 g_assert (!gklass->exception_type); /*FIXME do proper error handling*/
2004 for (i = 0; i < gklass->method.count; ++i) {
2005 if (gklass->methods [i] == method) {
2007 return class->methods [i];
2009 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
2017 * mono_class_get_vtable_entry:
2019 * Returns class->vtable [offset], computing it if neccesary.
2020 * LOCKING: Acquires the loader lock.
2023 mono_class_get_vtable_entry (MonoClass *class, int offset)
2027 if (class->rank == 1) {
2029 * szarrays do not overwrite any methods of Array, so we can avoid
2030 * initializing their vtables in some cases.
2032 mono_class_setup_vtable (class->parent);
2033 if (offset < class->parent->vtable_size)
2034 return class->parent->vtable [offset];
2037 if (class->generic_class) {
2038 MonoClass *gklass = class->generic_class->container_class;
2039 mono_class_setup_vtable (gklass);
2040 m = gklass->vtable [offset];
2042 m = mono_class_inflate_generic_method_full (m, class, mono_class_get_context (class));
2044 mono_class_setup_vtable (class);
2045 m = class->vtable [offset];
2052 * mono_class_get_vtable_size:
2054 * Return the vtable size for KLASS.
2057 mono_class_get_vtable_size (MonoClass *klass)
2059 mono_class_setup_vtable (klass);
2061 return klass->vtable_size;
2064 /*This method can fail the class.*/
2066 mono_class_setup_properties (MonoClass *class)
2068 guint startm, endm, i, j;
2069 guint32 cols [MONO_PROPERTY_SIZE];
2070 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2071 MonoProperty *properties;
2074 if (class->ext && class->ext->properties)
2077 mono_loader_lock ();
2079 if (class->ext && class->ext->properties) {
2080 mono_loader_unlock ();
2084 mono_class_alloc_ext (class);
2086 if (class->generic_class) {
2087 MonoClass *gklass = class->generic_class->container_class;
2089 mono_class_init (gklass);
2090 mono_class_setup_properties (gklass);
2091 if (gklass->exception_type) {
2092 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2093 mono_loader_unlock ();
2097 class->ext->property = gklass->ext->property;
2099 properties = mono_class_new0 (class, MonoProperty, class->ext->property.count + 1);
2101 for (i = 0; i < class->ext->property.count; i++) {
2102 MonoProperty *prop = &properties [i];
2104 *prop = gklass->ext->properties [i];
2107 prop->get = mono_class_inflate_generic_method_full (
2108 prop->get, class, mono_class_get_context (class));
2110 prop->set = mono_class_inflate_generic_method_full (
2111 prop->set, class, mono_class_get_context (class));
2113 prop->parent = class;
2116 int first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2117 int count = last - first;
2120 mono_class_setup_methods (class);
2121 if (class->exception_type) {
2122 mono_loader_unlock ();
2127 class->ext->property.first = first;
2128 class->ext->property.count = count;
2129 properties = mono_class_alloc0 (class, sizeof (MonoProperty) * count);
2130 for (i = first; i < last; ++i) {
2131 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
2132 properties [i - first].parent = class;
2133 properties [i - first].attrs = cols [MONO_PROPERTY_FLAGS];
2134 properties [i - first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
2136 startm = mono_metadata_methods_from_property (class->image, i, &endm);
2137 for (j = startm; j < endm; ++j) {
2140 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2142 if (class->image->uncompressed_metadata)
2143 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2144 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2146 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2148 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2149 case METHOD_SEMANTIC_SETTER:
2150 properties [i - first].set = method;
2152 case METHOD_SEMANTIC_GETTER:
2153 properties [i - first].get = method;
2161 /*Flush any pending writes as we do double checked locking on class->properties */
2162 mono_memory_barrier ();
2164 /* Leave this assignment as the last op in the function */
2165 class->ext->properties = properties;
2167 mono_loader_unlock ();
2171 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
2173 MonoMethod **om, **retval;
2176 for (om = methods, count = 0; *om; ++om, ++count)
2179 retval = g_new0 (MonoMethod*, count + 1);
2181 for (om = methods, count = 0; *om; ++om, ++count)
2182 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
2187 /*This method can fail the class.*/
2189 mono_class_setup_events (MonoClass *class)
2192 guint startm, endm, i, j;
2193 guint32 cols [MONO_EVENT_SIZE];
2194 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2198 if (class->ext && class->ext->events)
2201 mono_loader_lock ();
2203 if (class->ext && class->ext->events) {
2204 mono_loader_unlock ();
2208 mono_class_alloc_ext (class);
2210 if (class->generic_class) {
2211 MonoClass *gklass = class->generic_class->container_class;
2212 MonoGenericContext *context;
2214 mono_class_setup_events (gklass);
2215 if (gklass->exception_type) {
2216 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2217 mono_loader_unlock ();
2221 class->ext->event = gklass->ext->event;
2222 class->ext->events = mono_class_new0 (class, MonoEvent, class->ext->event.count);
2224 if (class->ext->event.count)
2225 context = mono_class_get_context (class);
2227 for (i = 0; i < class->ext->event.count; i++) {
2228 MonoEvent *event = &class->ext->events [i];
2229 MonoEvent *gevent = &gklass->ext->events [i];
2231 event->parent = class;
2232 event->name = gevent->name;
2233 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
2234 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
2235 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
2236 #ifndef MONO_SMALL_CONFIG
2237 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
2239 event->attrs = gevent->attrs;
2242 mono_loader_unlock ();
2246 first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2247 count = last - first;
2250 mono_class_setup_methods (class);
2251 if (class->exception_type) {
2252 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2253 mono_loader_unlock ();
2257 class->ext->event.first = first;
2258 class->ext->event.count = count;
2259 events = mono_class_alloc0 (class, sizeof (MonoEvent) * class->ext->event.count);
2260 for (i = first; i < last; ++i) {
2261 MonoEvent *event = &events [i - first];
2263 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
2264 event->parent = class;
2265 event->attrs = cols [MONO_EVENT_FLAGS];
2266 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
2268 startm = mono_metadata_methods_from_event (class->image, i, &endm);
2269 for (j = startm; j < endm; ++j) {
2272 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2274 if (class->image->uncompressed_metadata)
2275 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2276 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2278 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2280 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2281 case METHOD_SEMANTIC_ADD_ON:
2282 event->add = method;
2284 case METHOD_SEMANTIC_REMOVE_ON:
2285 event->remove = method;
2287 case METHOD_SEMANTIC_FIRE:
2288 event->raise = method;
2290 case METHOD_SEMANTIC_OTHER: {
2291 #ifndef MONO_SMALL_CONFIG
2294 if (event->other == NULL) {
2295 event->other = g_new0 (MonoMethod*, 2);
2297 while (event->other [n])
2299 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
2301 event->other [n] = method;
2302 /* NULL terminated */
2303 event->other [n + 1] = NULL;
2312 /*Flush any pending writes as we do double checked locking on class->properties */
2313 mono_memory_barrier ();
2315 /* Leave this assignment as the last op in the function */
2316 class->ext->events = events;
2318 mono_loader_unlock ();
2322 * Global pool of interface IDs, represented as a bitset.
2323 * LOCKING: this is supposed to be accessed with the loader lock held.
2325 static MonoBitSet *global_interface_bitset = NULL;
2328 * mono_unload_interface_ids:
2329 * @bitset: bit set of interface IDs
2331 * When an image is unloaded, the interface IDs associated with
2332 * the image are put back in the global pool of IDs so the numbers
2336 mono_unload_interface_ids (MonoBitSet *bitset)
2338 mono_loader_lock ();
2339 mono_bitset_sub (global_interface_bitset, bitset);
2340 mono_loader_unlock ();
2344 * mono_get_unique_iid:
2347 * Assign a unique integer ID to the interface represented by @class.
2348 * The ID will positive and as small as possible.
2349 * LOCKING: this is supposed to be called with the loader lock held.
2350 * Returns: the new ID.
2353 mono_get_unique_iid (MonoClass *class)
2357 g_assert (MONO_CLASS_IS_INTERFACE (class));
2359 if (!global_interface_bitset) {
2360 global_interface_bitset = mono_bitset_new (128, 0);
2363 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2365 int old_size = mono_bitset_size (global_interface_bitset);
2366 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2367 mono_bitset_free (global_interface_bitset);
2368 global_interface_bitset = new_set;
2371 mono_bitset_set (global_interface_bitset, iid);
2372 /* set the bit also in the per-image set */
2373 if (class->image->interface_bitset) {
2374 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2375 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2376 mono_bitset_free (class->image->interface_bitset);
2377 class->image->interface_bitset = new_set;
2380 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2382 mono_bitset_set (class->image->interface_bitset, iid);
2384 #ifndef MONO_SMALL_CONFIG
2385 if (mono_print_vtable) {
2387 char *type_name = mono_type_full_name (&class->byval_arg);
2388 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2389 generic_id = class->generic_class->context.class_inst->id;
2390 g_assert (generic_id != 0);
2394 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2399 g_assert (iid <= 65535);
2404 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res, MonoError *error)
2409 mono_class_setup_interfaces (klass, error);
2410 if (!mono_error_ok (error))
2413 for (i = 0; i < klass->interface_count; i++) {
2414 ic = klass->interfaces [i];
2417 *res = g_ptr_array_new ();
2418 g_ptr_array_add (*res, ic);
2419 mono_class_init (ic);
2421 collect_implemented_interfaces_aux (ic, res, error);
2422 if (!mono_error_ok (error))
2428 mono_class_get_implemented_interfaces (MonoClass *klass, MonoError *error)
2430 GPtrArray *res = NULL;
2432 collect_implemented_interfaces_aux (klass, &res, error);
2433 if (!mono_error_ok (error)) {
2435 g_ptr_array_free (res, TRUE);
2442 compare_interface_ids (const void *p_key, const void *p_element) {
2443 const MonoClass *key = p_key;
2444 const MonoClass *element = *(MonoClass**) p_element;
2446 return (key->interface_id - element->interface_id);
2449 /*FIXME verify all callers if they should switch to mono_class_interface_offset_with_variance*/
2451 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2452 MonoClass **result = bsearch (
2454 klass->interfaces_packed,
2455 klass->interface_offsets_count,
2456 sizeof (MonoClass *),
2457 compare_interface_ids);
2459 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2466 * mono_class_interface_offset_with_variance:
2468 * Return the interface offset of @itf in @klass. Sets @non_exact_match to TRUE if the match required variance check
2469 * If @itf is an interface with generic variant arguments, try to find the compatible one.
2471 * Note that this function is responsible for resolving ambiguities. Right now we use whatever ordering interfaces_packed gives us.
2473 * FIXME figure out MS disambiguation rules and fix this function.
2476 mono_class_interface_offset_with_variance (MonoClass *klass, MonoClass *itf, gboolean *non_exact_match) {
2477 int i = mono_class_interface_offset (klass, itf);
2478 *non_exact_match = FALSE;
2482 if (!mono_class_has_variant_generic_params (itf))
2485 for (i = 0; i < klass->interface_offsets_count; i++) {
2486 if (mono_class_is_variant_compatible (itf, klass->interfaces_packed [i])) {
2487 *non_exact_match = TRUE;
2488 return klass->interface_offsets_packed [i];
2496 print_implemented_interfaces (MonoClass *klass) {
2499 GPtrArray *ifaces = NULL;
2501 int ancestor_level = 0;
2503 name = mono_type_get_full_name (klass);
2504 printf ("Packed interface table for class %s has size %d\n", name, klass->interface_offsets_count);
2507 for (i = 0; i < klass->interface_offsets_count; i++)
2508 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2509 klass->interfaces_packed [i]->interface_id,
2510 klass->interface_offsets_packed [i],
2511 klass->interfaces_packed [i]->method.count,
2512 klass->interfaces_packed [i]->name_space,
2513 klass->interfaces_packed [i]->name );
2514 printf ("Interface flags: ");
2515 for (i = 0; i <= klass->max_interface_id; i++)
2516 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2517 printf ("(%d,T)", i);
2519 printf ("(%d,F)", i);
2521 printf ("Dump interface flags:");
2522 #ifdef COMPRESSED_INTERFACE_BITMAP
2524 const uint8_t* p = klass->interface_bitmap;
2525 i = klass->max_interface_id;
2527 printf (" %d x 00 %02X", p [0], p [1]);
2533 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2534 printf (" %02X", klass->interface_bitmap [i]);
2537 while (klass != NULL) {
2538 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2539 ifaces = mono_class_get_implemented_interfaces (klass, &error);
2540 if (!mono_error_ok (&error)) {
2541 printf (" Type failed due to %s\n", mono_error_get_message (&error));
2542 mono_error_cleanup (&error);
2543 } else if (ifaces) {
2544 for (i = 0; i < ifaces->len; i++) {
2545 MonoClass *ic = g_ptr_array_index (ifaces, i);
2546 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2547 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2549 mono_class_interface_offset (klass, ic),
2554 g_ptr_array_free (ifaces, TRUE);
2557 klass = klass->parent;
2562 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2565 args [0] = &arg0->byval_arg;
2567 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2571 array_class_get_if_rank (MonoClass *class, guint rank)
2573 return rank ? mono_array_class_get (class, rank) : class;
2577 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2579 valuetype_types [0] = eclass;
2580 if (eclass == mono_defaults.int16_class)
2581 valuetype_types [1] = mono_defaults.uint16_class;
2582 else if (eclass == mono_defaults.uint16_class)
2583 valuetype_types [1] = mono_defaults.int16_class;
2584 else if (eclass == mono_defaults.int32_class)
2585 valuetype_types [1] = mono_defaults.uint32_class;
2586 else if (eclass == mono_defaults.uint32_class)
2587 valuetype_types [1] = mono_defaults.int32_class;
2588 else if (eclass == mono_defaults.int64_class)
2589 valuetype_types [1] = mono_defaults.uint64_class;
2590 else if (eclass == mono_defaults.uint64_class)
2591 valuetype_types [1] = mono_defaults.int64_class;
2592 else if (eclass == mono_defaults.byte_class)
2593 valuetype_types [1] = mono_defaults.sbyte_class;
2594 else if (eclass == mono_defaults.sbyte_class)
2595 valuetype_types [1] = mono_defaults.byte_class;
2596 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2597 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2600 /* this won't be needed once bug #325495 is completely fixed
2601 * though we'll need something similar to know which interfaces to allow
2602 * in arrays when they'll be lazyly created
2604 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2605 * MS returns diferrent types based on which instance is called. For example:
2606 * object obj = new byte[10][];
2607 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2608 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2611 * Fixing this should kill quite some code, save some bits and improve compatibility.
2614 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2616 MonoClass *eclass = class->element_class;
2617 static MonoClass* generic_icollection_class = NULL;
2618 static MonoClass* generic_ienumerable_class = NULL;
2619 static MonoClass* generic_ienumerator_class = NULL;
2620 MonoClass *valuetype_types[2] = { NULL, NULL };
2621 MonoClass **interfaces = NULL;
2622 int i, interface_count, real_count, original_rank;
2624 gboolean internal_enumerator;
2625 gboolean eclass_is_valuetype;
2627 if (!mono_defaults.generic_ilist_class) {
2631 internal_enumerator = FALSE;
2632 eclass_is_valuetype = FALSE;
2633 original_rank = eclass->rank;
2634 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2635 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2637 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2639 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2640 original_rank = eclass->rank;
2641 eclass = eclass->element_class;
2642 internal_enumerator = TRUE;
2643 *is_enumerator = TRUE;
2651 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2652 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2654 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2656 if (!generic_icollection_class) {
2657 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2658 "System.Collections.Generic", "ICollection`1");
2659 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2660 "System.Collections.Generic", "IEnumerable`1");
2661 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2662 "System.Collections.Generic", "IEnumerator`1");
2665 mono_class_init (eclass);
2668 * Arrays in 2.0 need to implement a number of generic interfaces
2669 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2670 * on the element class). We collect the types needed to build the
2671 * instantiations in interfaces at intervals of 3, because 3 are
2672 * the generic interfaces needed to implement.
2674 if (eclass->valuetype) {
2675 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2677 /* IList, ICollection, IEnumerable */
2678 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2679 if (internal_enumerator) {
2681 if (valuetype_types [1])
2685 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2686 interfaces [0] = valuetype_types [0];
2687 if (valuetype_types [1])
2688 interfaces [3] = valuetype_types [1];
2690 eclass_is_valuetype = TRUE;
2693 int idepth = eclass->idepth;
2694 if (!internal_enumerator)
2697 // FIXME: This doesn't seem to work/required for generic params
2698 if (!(eclass->this_arg.type == MONO_TYPE_VAR || eclass->this_arg.type == MONO_TYPE_MVAR || (eclass->image->dynamic && !eclass->wastypebuilder)))
2699 mono_class_setup_interface_offsets (eclass);
2701 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2702 /* we add object for interfaces and the supertypes for the other
2703 * types. The last of the supertypes is the element class itself which we
2704 * already created the explicit interfaces for (so we include it for IEnumerator
2705 * and exclude it for arrays).
2707 if (MONO_CLASS_IS_INTERFACE (eclass))
2710 interface_count += idepth;
2711 if (eclass->rank && eclass->element_class->valuetype) {
2712 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2713 if (valuetype_types [1])
2716 /* IList, ICollection, IEnumerable */
2717 interface_count *= 3;
2718 real_count = interface_count;
2719 if (internal_enumerator) {
2720 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2721 if (valuetype_types [1])
2724 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2725 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2726 interfaces [0] = mono_defaults.object_class;
2730 for (i = 0; i < idepth; i++) {
2731 mono_class_init (eclass->supertypes [i]);
2732 interfaces [j] = eclass->supertypes [i];
2736 if (all_interfaces) {
2737 for (i = 0; i < eclass->interface_offsets_count; i++) {
2738 interfaces [j] = eclass->interfaces_packed [i];
2742 for (i = 0; i < eclass->interface_count; i++) {
2743 interfaces [j] = eclass->interfaces [i];
2747 if (valuetype_types [1]) {
2748 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2753 /* instantiate the generic interfaces */
2754 for (i = 0; i < interface_count; i += 3) {
2755 MonoClass *iface = interfaces [i];
2757 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2758 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2759 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2761 if (internal_enumerator) {
2763 /* instantiate IEnumerator<iface> */
2764 for (i = 0; i < interface_count; i++) {
2765 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2767 j = interface_count;
2768 if (!eclass_is_valuetype) {
2769 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2770 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2773 for (i = 0; i < eclass->idepth; i++) {
2774 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2778 for (i = 0; i < eclass->interface_offsets_count; i++) {
2779 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2783 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2785 if (valuetype_types [1])
2786 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2790 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2791 for (i = 0; i < real_count; ++i) {
2792 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2793 g_print ("%s implements %s\n", type_name, name);
2804 find_array_interface (MonoClass *klass, const char *name)
2807 for (i = 0; i < klass->interface_count; ++i) {
2808 if (strcmp (klass->interfaces [i]->name, name) == 0)
2815 * Return the number of virtual methods.
2816 * Even for interfaces we can't simply return the number of methods as all CLR types are allowed to have static methods.
2817 * Return -1 on failure.
2818 * FIXME It would be nice if this information could be cached somewhere.
2821 count_virtual_methods (MonoClass *class)
2825 class = mono_class_get_generic_type_definition (class); /*We can find this information by looking at the GTD*/
2827 if (class->methods || !MONO_CLASS_HAS_STATIC_METADATA (class)) {
2828 mono_class_setup_methods (class);
2829 if (class->exception_type)
2832 for (i = 0; i < class->method.count; ++i) {
2833 flags = class->methods [i]->flags;
2834 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2838 for (i = 0; i < class->method.count; ++i) {
2839 flags = mono_metadata_decode_table_row_col (class->image, MONO_TABLE_METHOD, class->method.first + i, MONO_METHOD_FLAGS);
2841 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2849 find_interface (int num_ifaces, MonoClass **interfaces_full, MonoClass *ic)
2857 m = (l + num_ifaces) / 2;
2858 if (interfaces_full [m] == ic)
2860 if (l == num_ifaces)
2862 if (!interfaces_full [m] || interfaces_full [m]->interface_id > ic->interface_id) {
2871 find_interface_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic)
2873 int i = find_interface (num_ifaces, interfaces_full, ic);
2875 return interface_offsets_full [i];
2880 set_interface_and_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic, int offset, mono_bool force_set)
2882 int i = find_interface (num_ifaces, interfaces_full, ic);
2886 interface_offsets_full [i] = offset;
2889 for (i = 0; i < num_ifaces; ++i) {
2890 if (interfaces_full [i]) {
2892 if (interfaces_full [i]->interface_id < ic->interface_id)
2895 while (end < num_ifaces && interfaces_full [end]) end++;
2896 memmove (interfaces_full + i + 1, interfaces_full + i, sizeof (MonoClass*) * (end - i));
2897 memmove (interface_offsets_full + i + 1, interface_offsets_full + i, sizeof (int) * (end - i));
2899 interfaces_full [i] = ic;
2900 interface_offsets_full [i] = offset;
2906 #ifdef COMPRESSED_INTERFACE_BITMAP
2909 * Compressed interface bitmap design.
2911 * Interface bitmaps take a large amount of memory, because their size is
2912 * linear with the maximum interface id assigned in the process (each interface
2913 * is assigned a unique id as it is loaded). The number of interface classes
2914 * is high because of the many implicit interfaces implemented by arrays (we'll
2915 * need to lazy-load them in the future).
2916 * Most classes implement a very small number of interfaces, so the bitmap is
2917 * sparse. This bitmap needs to be checked by interface casts, so access to the
2918 * needed bit must be fast and doable with few jit instructions.
2920 * The current compression format is as follows:
2921 * *) it is a sequence of one or more two-byte elements
2922 * *) the first byte in the element is the count of empty bitmap bytes
2923 * at the current bitmap position
2924 * *) the second byte in the element is an actual bitmap byte at the current
2927 * As an example, the following compressed bitmap bytes:
2928 * 0x07 0x01 0x00 0x7
2929 * correspond to the following bitmap:
2930 * 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x01 0x07
2932 * Each two-byte element can represent up to 2048 bitmap bits, but as few as a single
2933 * bitmap byte for non-sparse sequences. In practice the interface bitmaps created
2934 * during a gmcs bootstrap are reduced to less tha 5% of the original size.
2938 * mono_compress_bitmap:
2939 * @dest: destination buffer
2940 * @bitmap: bitmap buffer
2941 * @size: size of @bitmap in bytes
2943 * This is a mono internal function.
2944 * The @bitmap data is compressed into a format that is small but
2945 * still searchable in few instructions by the JIT and runtime.
2946 * The compressed data is stored in the buffer pointed to by the
2947 * @dest array. Passing a #NULL value for @dest allows to just compute
2948 * the size of the buffer.
2949 * This compression algorithm assumes the bits set in the bitmap are
2950 * few and far between, like in interface bitmaps.
2951 * Returns: the size of the compressed bitmap in bytes.
2954 mono_compress_bitmap (uint8_t *dest, const uint8_t *bitmap, int size)
2958 const uint8_t *end = bitmap + size;
2959 while (bitmap < end) {
2960 if (*bitmap || numz == 255) {
2984 * mono_class_interface_match:
2985 * @bitmap: a compressed bitmap buffer
2986 * @id: the index to check in the bitmap
2988 * This is a mono internal function.
2989 * Checks if a bit is set in a compressed interface bitmap. @id must
2990 * be already checked for being smaller than the maximum id encoded in the
2993 * Returns: a non-zero value if bit @id is set in the bitmap @bitmap,
2997 mono_class_interface_match (const uint8_t *bitmap, int id)
3000 id -= bitmap [0] * 8;
3004 return bitmap [1] & (1 << id);
3013 * LOCKING: this is supposed to be called with the loader lock held.
3014 * Return -1 on failure and set exception_type
3017 setup_interface_offsets (MonoClass *class, int cur_slot)
3021 int i, j, max_iid, num_ifaces;
3022 MonoClass **interfaces_full = NULL;
3023 int *interface_offsets_full = NULL;
3025 GPtrArray **ifaces_array = NULL;
3026 int interface_offsets_count;
3027 MonoClass **array_interfaces = NULL;
3028 int num_array_interfaces;
3029 int is_enumerator = FALSE;
3031 mono_class_setup_supertypes (class);
3033 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
3034 * implicit interfaces have the property that they are assigned the same slot in the
3035 * vtables for compatible interfaces
3037 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
3039 /* compute maximum number of slots and maximum interface id */
3041 num_ifaces = num_array_interfaces; /* this can include duplicated ones */
3042 ifaces_array = g_new0 (GPtrArray *, class->idepth);
3043 for (j = 0; j < class->idepth; j++) {
3044 k = class->supertypes [j];
3045 num_ifaces += k->interface_count;
3046 for (i = 0; i < k->interface_count; i++) {
3047 ic = k->interfaces [i];
3050 mono_class_init (ic);
3052 if (max_iid < ic->interface_id)
3053 max_iid = ic->interface_id;
3055 ifaces = mono_class_get_implemented_interfaces (k, &error);
3056 if (!mono_error_ok (&error)) {
3057 char *name = mono_type_get_full_name (k);
3058 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Error getting the interfaces of %s due to %s", name, mono_error_get_message (&error)));
3060 mono_error_cleanup (&error);
3065 num_ifaces += ifaces->len;
3066 for (i = 0; i < ifaces->len; ++i) {
3067 ic = g_ptr_array_index (ifaces, i);
3068 if (max_iid < ic->interface_id)
3069 max_iid = ic->interface_id;
3071 ifaces_array [j] = ifaces;
3075 for (i = 0; i < num_array_interfaces; ++i) {
3076 ic = array_interfaces [i];
3077 mono_class_init (ic);
3078 if (max_iid < ic->interface_id)
3079 max_iid = ic->interface_id;
3082 if (MONO_CLASS_IS_INTERFACE (class)) {
3084 if (max_iid < class->interface_id)
3085 max_iid = class->interface_id;
3087 class->max_interface_id = max_iid;
3088 /* compute vtable offset for interfaces */
3089 interfaces_full = g_malloc0 (sizeof (MonoClass*) * num_ifaces);
3090 interface_offsets_full = g_malloc (sizeof (int) * num_ifaces);
3092 for (i = 0; i < num_ifaces; i++) {
3093 interface_offsets_full [i] = -1;
3096 /* skip the current class */
3097 for (j = 0; j < class->idepth - 1; j++) {
3098 k = class->supertypes [j];
3099 ifaces = ifaces_array [j];
3102 for (i = 0; i < ifaces->len; ++i) {
3104 ic = g_ptr_array_index (ifaces, i);
3106 /*Force the sharing of interface offsets between parent and subtypes.*/
3107 io = mono_class_interface_offset (k, ic);
3109 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, io, TRUE);
3114 g_assert (class == class->supertypes [class->idepth - 1]);
3115 ifaces = ifaces_array [class->idepth - 1];
3117 for (i = 0; i < ifaces->len; ++i) {
3119 ic = g_ptr_array_index (ifaces, i);
3120 if (set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, cur_slot, FALSE))
3122 count = count_virtual_methods (ic);
3124 char *name = mono_type_get_full_name (ic);
3125 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Error calculating interface offset of %s", name));
3134 if (MONO_CLASS_IS_INTERFACE (class))
3135 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, class, cur_slot, TRUE);
3137 if (num_array_interfaces) {
3138 if (is_enumerator) {
3139 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
3140 int ienumerator_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ienumerator_idx]);
3141 g_assert (ienumerator_offset >= 0);
3142 for (i = 0; i < num_array_interfaces; ++i) {
3143 ic = array_interfaces [i];
3144 if (strcmp (ic->name, "IEnumerator`1") == 0)
3145 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, ienumerator_offset, TRUE);
3147 g_assert_not_reached ();
3148 /*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);*/
3151 int ilist_offset, icollection_offset, ienumerable_offset;
3152 int ilist_iface_idx = find_array_interface (class, "IList`1");
3153 MonoClass* ilist_class = class->interfaces [ilist_iface_idx];
3154 int icollection_iface_idx = find_array_interface (ilist_class, "ICollection`1");
3155 int ienumerable_iface_idx = find_array_interface (ilist_class, "IEnumerable`1");
3156 ilist_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ilist_iface_idx]);
3157 icollection_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [icollection_iface_idx]);
3158 ienumerable_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [ienumerable_iface_idx]);
3159 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
3160 for (i = 0; i < num_array_interfaces; ++i) {
3162 ic = array_interfaces [i];
3163 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
3164 offset = ilist_offset;
3165 else if (strcmp (ic->name, "ICollection`1") == 0)
3166 offset = icollection_offset;
3167 else if (strcmp (ic->name, "IEnumerable`1") == 0)
3168 offset = ienumerable_offset;
3170 g_assert_not_reached ();
3171 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, offset, TRUE);
3172 /*g_print ("type %s has %s offset at %d (%s)\n", class->name, ic->name, offset, class->interfaces [0]->name);*/
3177 for (interface_offsets_count = 0, i = 0; i < num_ifaces; i++) {
3178 if (interface_offsets_full [i] != -1) {
3179 interface_offsets_count ++;
3184 * We might get called twice: once from mono_class_init () then once from
3185 * mono_class_setup_vtable ().
3187 if (class->interfaces_packed) {
3188 g_assert (class->interface_offsets_count == interface_offsets_count);
3192 class->interface_offsets_count = interface_offsets_count;
3193 class->interfaces_packed = mono_class_alloc (class, sizeof (MonoClass*) * interface_offsets_count);
3194 class->interface_offsets_packed = mono_class_alloc (class, sizeof (guint16) * interface_offsets_count);
3195 bsize = (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0);
3196 #ifdef COMPRESSED_INTERFACE_BITMAP
3197 bitmap = g_malloc0 (bsize);
3199 bitmap = mono_class_alloc0 (class, bsize);
3201 for (i = 0; i < interface_offsets_count; i++) {
3202 int id = interfaces_full [i]->interface_id;
3203 bitmap [id >> 3] |= (1 << (id & 7));
3204 class->interfaces_packed [i] = interfaces_full [i];
3205 class->interface_offsets_packed [i] = interface_offsets_full [i];
3206 /*if (num_array_interfaces)
3207 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]);*/
3209 #ifdef COMPRESSED_INTERFACE_BITMAP
3210 i = mono_compress_bitmap (NULL, bitmap, bsize);
3211 class->interface_bitmap = mono_class_alloc0 (class, i);
3212 mono_compress_bitmap (class->interface_bitmap, bitmap, bsize);
3215 class->interface_bitmap = bitmap;
3220 g_free (interfaces_full);
3221 g_free (interface_offsets_full);
3222 g_free (array_interfaces);
3223 for (i = 0; i < class->idepth; i++) {
3224 ifaces = ifaces_array [i];
3226 g_ptr_array_free (ifaces, TRUE);
3228 g_free (ifaces_array);
3230 //printf ("JUST DONE: ");
3231 //print_implemented_interfaces (class);
3237 * Setup interface offsets for interfaces.
3239 * - class->max_interface_id
3240 * - class->interface_offsets_count
3241 * - class->interfaces_packed
3242 * - class->interface_offsets_packed
3243 * - class->interface_bitmap
3245 * This function can fail @class.
3248 mono_class_setup_interface_offsets (MonoClass *class)
3250 mono_loader_lock ();
3252 setup_interface_offsets (class, 0);
3254 mono_loader_unlock ();
3258 * mono_class_setup_vtable:
3260 * Creates the generic vtable of CLASS.
3261 * Initializes the following fields in MonoClass:
3264 * Plus all the fields initialized by setup_interface_offsets ().
3265 * If there is an error during vtable construction, class->exception_type is set.
3267 * LOCKING: Acquires the loader lock.
3270 mono_class_setup_vtable (MonoClass *class)
3272 MonoMethod **overrides;
3273 MonoGenericContext *context;
3281 if (mono_debug_using_mono_debugger ())
3282 /* The debugger currently depends on this */
3283 mono_class_setup_methods (class);
3285 if (MONO_CLASS_IS_INTERFACE (class)) {
3286 /* This sets method->slot for all methods if this is an interface */
3287 mono_class_setup_methods (class);
3291 if (class->exception_type)
3294 mono_loader_lock ();
3296 if (class->vtable) {
3297 mono_loader_unlock ();
3301 mono_stats.generic_vtable_count ++;
3303 if (class->generic_class) {
3304 context = mono_class_get_context (class);
3305 type_token = class->generic_class->container_class->type_token;
3307 context = (MonoGenericContext *) class->generic_container;
3308 type_token = class->type_token;
3311 if (class->image->dynamic) {
3312 /* Generic instances can have zero method overrides without causing any harm.
3313 * This is true since we don't do layout all over again for them, we simply inflate
3314 * the layout of the parent.
3316 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
3318 /* The following call fails if there are missing methods in the type */
3319 /* FIXME it's probably a good idea to avoid this for generic instances. */
3320 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
3324 mono_class_setup_vtable_general (class, overrides, onum);
3328 mono_loader_unlock ();
3333 #define DEBUG_INTERFACE_VTABLE_CODE 0
3334 #define TRACE_INTERFACE_VTABLE_CODE 0
3335 #define VERIFY_INTERFACE_VTABLE_CODE 0
3336 #define VTABLE_SELECTOR (1)
3338 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3339 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
3340 if (!(VTABLE_SELECTOR)) break; \
3344 #define DEBUG_INTERFACE_VTABLE(stmt)
3347 #if TRACE_INTERFACE_VTABLE_CODE
3348 #define TRACE_INTERFACE_VTABLE(stmt) do {\
3349 if (!(VTABLE_SELECTOR)) break; \
3353 #define TRACE_INTERFACE_VTABLE(stmt)
3356 #if VERIFY_INTERFACE_VTABLE_CODE
3357 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
3358 if (!(VTABLE_SELECTOR)) break; \
3362 #define VERIFY_INTERFACE_VTABLE(stmt)
3366 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3368 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
3372 GString *res = g_string_new ("");
3374 g_string_append_c (res, '(');
3375 for (i = 0; i < sig->param_count; ++i) {
3377 g_string_append_c (res, ',');
3378 mono_type_get_desc (res, sig->params [i], include_namespace);
3380 g_string_append (res, ")=>");
3381 if (sig->ret != NULL) {
3382 mono_type_get_desc (res, sig->ret, include_namespace);
3384 g_string_append (res, "NULL");
3387 g_string_free (res, FALSE);
3391 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
3392 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
3393 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
3394 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
3402 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) {
3403 MonoMethodSignature *cmsig, *imsig;
3404 if (strcmp (im->name, cm->name) == 0) {
3405 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
3406 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
3409 if (! slot_is_empty) {
3410 if (require_newslot) {
3411 if (! interface_is_explicitly_implemented_by_class) {
3412 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
3415 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3416 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
3420 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
3423 cmsig = mono_method_signature (cm);
3424 imsig = mono_method_signature (im);
3425 if (!cmsig || !imsig) {
3426 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not resolve the signature of a virtual method"));
3430 if (! mono_metadata_signature_equal (cmsig, imsig)) {
3431 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
3432 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3433 TRACE_INTERFACE_VTABLE (printf ("]"));
3436 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
3437 /* CAS - SecurityAction.InheritanceDemand on interface */
3438 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3439 mono_secman_inheritancedemand_method (cm, im);
3442 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3443 mono_security_core_clr_check_override (class, cm, im);
3444 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
3447 MonoClass *ic = im->klass;
3448 const char *ic_name_space = ic->name_space;
3449 const char *ic_name = ic->name;
3452 if (! require_newslot) {
3453 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
3456 if (cm->klass->rank == 0) {
3457 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
3460 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
3461 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
3462 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3463 TRACE_INTERFACE_VTABLE (printf ("]"));
3466 if (mono_class_get_image (ic) != mono_defaults.corlib) {
3467 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
3470 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
3471 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
3474 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
3475 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
3479 subname = strstr (cm->name, ic_name_space);
3480 if (subname != cm->name) {
3481 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
3484 subname += strlen (ic_name_space);
3485 if (subname [0] != '.') {
3486 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
3490 if (strstr (subname, ic_name) != subname) {
3491 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
3494 subname += strlen (ic_name);
3495 if (subname [0] != '.') {
3496 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
3500 if (strcmp (subname, im->name) != 0) {
3501 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
3505 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
3506 /* CAS - SecurityAction.InheritanceDemand on interface */
3507 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3508 mono_secman_inheritancedemand_method (cm, im);
3511 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3512 mono_security_core_clr_check_override (class, cm, im);
3514 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
3519 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3521 foreach_override (gpointer key, gpointer value, gpointer user_data) {
3522 MonoMethod *method = key;
3523 MonoMethod *override = value;
3524 MonoClass *method_class = mono_method_get_class (method);
3525 MonoClass *override_class = mono_method_get_class (override);
3527 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
3528 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
3529 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
3532 print_overrides (GHashTable *override_map, const char *message) {
3534 printf ("Override map \"%s\" START:\n", message);
3535 g_hash_table_foreach (override_map, foreach_override, NULL);
3536 printf ("Override map \"%s\" END.\n", message);
3538 printf ("Override map \"%s\" EMPTY.\n", message);
3542 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
3543 char *full_name = mono_type_full_name (&class->byval_arg);
3547 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
3549 if (print_interfaces) {
3550 print_implemented_interfaces (class);
3551 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
3554 if (class->parent) {
3555 parent_size = class->parent->vtable_size;
3559 for (i = 0; i < size; ++i) {
3560 MonoMethod *cm = vtable [i];
3562 char *cm_name = mono_method_full_name (cm, TRUE);
3563 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
3564 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
3573 #if VERIFY_INTERFACE_VTABLE_CODE
3575 mono_method_try_get_vtable_index (MonoMethod *method)
3577 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3578 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3579 if (imethod->declaring->is_generic)
3580 return imethod->declaring->slot;
3582 return method->slot;
3586 mono_class_verify_vtable (MonoClass *class)
3589 char *full_name = mono_type_full_name (&class->byval_arg);
3591 printf ("*** Verifying VTable of class '%s' \n", full_name);
3595 if (!class->methods)
3598 for (i = 0; i < class->method.count; ++i) {
3599 MonoMethod *cm = class->methods [i];
3602 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3606 full_name = mono_method_full_name (cm, TRUE);
3608 slot = mono_method_try_get_vtable_index (cm);
3610 if (slot >= class->vtable_size) {
3611 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
3615 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot])) {
3616 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
3617 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
3618 g_free (other_name);
3621 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
3628 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
3630 char *method_signature;
3633 for (index = 0; index < onum; ++index) {
3634 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
3635 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
3637 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
3638 type_name = mono_type_full_name (&class->byval_arg);
3639 printf ("no implementation for interface method %s::%s(%s) in class %s\n",
3640 mono_type_get_name (&ic->byval_arg), im->name, method_signature, type_name);
3641 g_free (method_signature);
3643 mono_class_setup_methods (class);
3644 if (class->exception_type) {
3645 char *name = mono_type_get_full_name (class);
3646 printf ("CLASS %s failed to resolve methods\n", name);
3650 for (index = 0; index < class->method.count; ++index) {
3651 MonoMethod *cm = class->methods [index];
3652 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3654 printf ("METHOD %s(%s)\n", cm->name, method_signature);
3655 g_free (method_signature);
3660 verify_class_overrides (MonoClass *class, MonoMethod **overrides, int onum)
3664 for (i = 0; i < onum; ++i) {
3665 MonoMethod *decl = overrides [i * 2];
3666 MonoMethod *body = overrides [i * 2 + 1];
3668 if (mono_class_get_generic_type_definition (body->klass) != mono_class_get_generic_type_definition (class)) {
3669 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method belongs to a different class than the declared one"));
3673 if (!(body->flags & METHOD_ATTRIBUTE_VIRTUAL) || (body->flags & METHOD_ATTRIBUTE_STATIC)) {
3674 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3675 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must not be static to override a base type"));
3677 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must be virtual to override a base type"));
3681 if (!(decl->flags & METHOD_ATTRIBUTE_VIRTUAL) || (decl->flags & METHOD_ATTRIBUTE_STATIC)) {
3682 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3683 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a static method in a base type"));
3685 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a non virtual method in a base type"));
3689 if (!mono_class_is_assignable_from_slow (decl->klass, class)) {
3690 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method overrides a class or interface that extended or implemented by this type"));
3697 * LOCKING: this is supposed to be called with the loader lock held.
3700 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
3704 MonoMethod **vtable;
3705 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3706 GPtrArray *ifaces = NULL;
3707 GHashTable *override_map = NULL;
3708 gboolean security_enabled = mono_is_security_manager_active ();
3710 gpointer class_iter;
3711 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3712 int first_non_interface_slot;
3714 GSList *virt_methods = NULL, *l;
3719 if (overrides && !verify_class_overrides (class, overrides, onum))
3722 ifaces = mono_class_get_implemented_interfaces (class, &error);
3723 if (!mono_error_ok (&error)) {
3724 char *name = mono_type_get_full_name (class);
3725 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Could not resolve %s interfaces due to %s", name, mono_error_get_message (&error)));
3727 mono_error_cleanup (&error);
3729 } else if (ifaces) {
3730 for (i = 0; i < ifaces->len; i++) {
3731 MonoClass *ic = g_ptr_array_index (ifaces, i);
3732 max_vtsize += ic->method.count;
3734 g_ptr_array_free (ifaces, TRUE);
3738 if (class->parent) {
3739 mono_class_init (class->parent);
3740 mono_class_setup_vtable (class->parent);
3742 if (class->parent->exception_type) {
3743 char *name = mono_type_get_full_name (class->parent);
3744 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Parent %s failed to load", name));
3749 max_vtsize += class->parent->vtable_size;
3750 cur_slot = class->parent->vtable_size;
3753 max_vtsize += class->method.count;
3755 vtable = alloca (sizeof (gpointer) * max_vtsize);
3756 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
3758 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3760 cur_slot = setup_interface_offsets (class, cur_slot);
3761 if (cur_slot == -1) /*setup_interface_offsets fails the type.*/
3764 max_iid = class->max_interface_id;
3765 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
3767 /* Optimized version for generic instances */
3768 if (class->generic_class) {
3770 MonoClass *gklass = class->generic_class->container_class;
3773 mono_class_setup_vtable (gklass);
3774 if (gklass->exception_type != MONO_EXCEPTION_NONE) {
3775 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3779 tmp = mono_class_alloc0 (class, sizeof (gpointer) * gklass->vtable_size);
3780 class->vtable_size = gklass->vtable_size;
3781 for (i = 0; i < gklass->vtable_size; ++i)
3782 if (gklass->vtable [i]) {
3783 MonoMethod *inflated = mono_class_inflate_generic_method_full_checked (gklass->vtable [i], class, mono_class_get_context (class), &error);
3784 if (!mono_error_ok (&error)) {
3785 char *err_msg = g_strdup_printf ("Could not inflate method due to %s", mono_error_get_message (&error));
3786 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
3788 mono_error_cleanup (&error);
3792 tmp [i]->slot = gklass->vtable [i]->slot;
3794 mono_memory_barrier ();
3795 class->vtable = tmp;
3797 /* Have to set method->slot for abstract virtual methods */
3798 if (class->methods && gklass->methods) {
3799 for (i = 0; i < class->method.count; ++i)
3800 if (class->methods [i]->slot == -1)
3801 class->methods [i]->slot = gklass->methods [i]->slot;
3807 if (class->parent && class->parent->vtable_size) {
3808 MonoClass *parent = class->parent;
3811 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
3813 // Also inherit parent interface vtables, just as a starting point.
3814 // This is needed otherwise bug-77127.exe fails when the property methods
3815 // have different names in the iterface and the class, because for child
3816 // classes the ".override" information is not used anymore.
3817 for (i = 0; i < parent->interface_offsets_count; i++) {
3818 MonoClass *parent_interface = parent->interfaces_packed [i];
3819 int interface_offset = mono_class_interface_offset (class, parent_interface);
3820 /*FIXME this is now dead code as this condition will never hold true.
3821 Since interface offsets are inherited then the offset of an interface implemented
3822 by a parent will never be the out of it's vtable boundary.
3824 if (interface_offset >= parent->vtable_size) {
3825 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
3828 mono_class_setup_methods (parent_interface); /*FIXME Just kill this whole chunk of dead code*/
3829 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
3830 for (j = 0; j < parent_interface->method.count && !class->exception_type; j++) {
3831 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
3832 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
3833 parent_interface_offset + j, parent_interface_offset, j,
3834 interface_offset + j, interface_offset, j));
3841 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
3842 /* override interface methods */
3843 for (i = 0; i < onum; i++) {
3844 MonoMethod *decl = overrides [i*2];
3845 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
3847 dslot = mono_method_get_vtable_slot (decl);
3849 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3853 dslot += mono_class_interface_offset (class, decl->klass);
3854 vtable [dslot] = overrides [i*2 + 1];
3855 vtable [dslot]->slot = dslot;
3857 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3859 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
3861 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3862 mono_security_core_clr_check_override (class, vtable [dslot], decl);
3865 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
3866 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
3869 * Create a list of virtual methods to avoid calling
3870 * mono_class_get_virtual_methods () which is slow because of the metadata
3874 gpointer iter = NULL;
3877 virt_methods = NULL;
3878 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
3879 virt_methods = g_slist_prepend (virt_methods, cm);
3881 if (class->exception_type)
3885 // Loop on all implemented interfaces...
3886 for (i = 0; i < class->interface_offsets_count; i++) {
3887 MonoClass *parent = class->parent;
3889 gboolean interface_is_explicitly_implemented_by_class;
3892 ic = class->interfaces_packed [i];
3893 ic_offset = mono_class_interface_offset (class, ic);
3895 mono_class_setup_methods (ic);
3896 if (ic->exception_type)
3899 // Check if this interface is explicitly implemented (instead of just inherited)
3900 if (parent != NULL) {
3901 int implemented_interfaces_index;
3902 interface_is_explicitly_implemented_by_class = FALSE;
3903 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
3904 if (ic == class->interfaces [implemented_interfaces_index]) {
3905 interface_is_explicitly_implemented_by_class = TRUE;
3910 interface_is_explicitly_implemented_by_class = TRUE;
3913 // Loop on all interface methods...
3914 for (im_index = 0; im_index < ic->method.count; im_index++) {
3915 MonoMethod *im = ic->methods [im_index];
3916 int im_slot = ic_offset + im->slot;
3917 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
3919 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3922 // If there is an explicit implementation, just use it right away,
3923 // otherwise look for a matching method
3924 if (override_im == NULL) {
3929 // First look for a suitable method among the class methods
3931 for (l = virt_methods; l; l = l->next) {
3933 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)));
3934 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
3935 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
3936 vtable [im_slot] = cm;
3937 /* Why do we need this? */
3942 TRACE_INTERFACE_VTABLE (printf ("\n"));
3943 if (class->exception_type) /*Might be set by check_interface_method_override*/
3947 // If the slot is still empty, look in all the inherited virtual methods...
3948 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
3949 MonoClass *parent = class->parent;
3950 // Reverse order, so that last added methods are preferred
3951 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
3952 MonoMethod *cm = parent->vtable [cm_index];
3954 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));
3955 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
3956 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
3957 vtable [im_slot] = cm;
3958 /* Why do we need this? */
3964 if (class->exception_type) /*Might be set by check_interface_method_override*/
3966 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
3970 g_assert (vtable [im_slot] == override_im);
3975 // If the class is not abstract, check that all its interface slots are full.
3976 // The check is done here and not directly at the end of the loop above because
3977 // it can happen (for injected generic array interfaces) that the same slot is
3978 // processed multiple times (those interfaces have overlapping slots), and it
3979 // will not always be the first pass the one that fills the slot.
3980 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3981 for (i = 0; i < class->interface_offsets_count; i++) {
3985 ic = class->interfaces_packed [i];
3986 ic_offset = mono_class_interface_offset (class, ic);
3988 for (im_index = 0; im_index < ic->method.count; im_index++) {
3989 MonoMethod *im = ic->methods [im_index];
3990 int im_slot = ic_offset + im->slot;
3992 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3995 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
3996 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
3997 if (vtable [im_slot] == NULL) {
3998 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
4005 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
4007 for (l = virt_methods; l; l = l->next) {
4010 * If the method is REUSE_SLOT, we must check in the
4011 * base class for a method to override.
4013 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
4015 for (k = class->parent; k ; k = k->parent) {
4020 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
4021 MonoMethodSignature *cmsig, *m1sig;
4023 cmsig = mono_method_signature (cm);
4024 m1sig = mono_method_signature (m1);
4026 if (!cmsig || !m1sig) {
4027 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4031 if (!strcmp(cm->name, m1->name) &&
4032 mono_metadata_signature_equal (cmsig, m1sig)) {
4034 /* CAS - SecurityAction.InheritanceDemand */
4035 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
4036 mono_secman_inheritancedemand_method (cm, m1);
4039 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4040 mono_security_core_clr_check_override (class, cm, m1);
4042 slot = mono_method_get_vtable_slot (m1);
4046 g_assert (cm->slot < max_vtsize);
4048 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4049 g_hash_table_insert (override_map, m1, cm);
4053 if (k->exception_type)
4063 /*Non final newslot methods must be given a non-interface vtable slot*/
4064 if ((cm->flags & METHOD_ATTRIBUTE_NEW_SLOT) && !(cm->flags & METHOD_ATTRIBUTE_FINAL) && cm->slot >= 0)
4068 cm->slot = cur_slot++;
4070 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
4071 vtable [cm->slot] = cm;
4074 /* override non interface methods */
4075 for (i = 0; i < onum; i++) {
4076 MonoMethod *decl = overrides [i*2];
4077 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
4078 g_assert (decl->slot != -1);
4079 vtable [decl->slot] = overrides [i*2 + 1];
4080 overrides [i * 2 + 1]->slot = decl->slot;
4082 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4083 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
4085 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4086 mono_security_core_clr_check_override (class, vtable [decl->slot], decl);
4091 * If a method occupies more than one place in the vtable, and it is
4092 * overriden, then change the other occurances too.
4095 for (i = 0; i < max_vtsize; ++i)
4097 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
4102 g_hash_table_destroy (override_map);
4103 override_map = NULL;
4106 g_slist_free (virt_methods);
4107 virt_methods = NULL;
4109 /* Ensure that all vtable slots are filled with concrete instance methods */
4110 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
4111 for (i = 0; i < cur_slot; ++i) {
4112 if (vtable [i] == NULL || (vtable [i]->flags & (METHOD_ATTRIBUTE_ABSTRACT | METHOD_ATTRIBUTE_STATIC))) {
4113 char *type_name = mono_type_get_full_name (class);
4114 char *method_name = vtable [i] ? mono_method_full_name (vtable [i], TRUE) : g_strdup ("none");
4115 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));
4117 g_free (method_name);
4123 if (class->generic_class) {
4124 MonoClass *gklass = class->generic_class->container_class;
4126 mono_class_init (gklass);
4128 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
4130 /* Check that the vtable_size value computed in mono_class_init () is correct */
4131 if (class->vtable_size)
4132 g_assert (cur_slot == class->vtable_size);
4133 class->vtable_size = cur_slot;
4136 /* Try to share the vtable with our parent. */
4137 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
4138 mono_memory_barrier ();
4139 class->vtable = class->parent->vtable;
4141 MonoMethod **tmp = mono_class_alloc0 (class, sizeof (gpointer) * class->vtable_size);
4142 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
4143 mono_memory_barrier ();
4144 class->vtable = tmp;
4147 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
4148 if (mono_print_vtable) {
4151 print_implemented_interfaces (class);
4153 for (i = 0; i <= max_iid; i++)
4154 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
4157 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
4158 class->vtable_size, icount);
4160 for (i = 0; i < cur_slot; ++i) {
4165 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
4166 mono_method_full_name (cm, TRUE));
4172 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
4173 class->name, max_iid);
4175 for (i = 0; i < class->interface_count; i++) {
4176 ic = class->interfaces [i];
4177 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
4178 mono_class_interface_offset (class, ic),
4179 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4182 for (k = class->parent; k ; k = k->parent) {
4183 for (i = 0; i < k->interface_count; i++) {
4184 ic = k->interfaces [i];
4185 printf (" parent slot offset: %03d, method count: %03d, iid: %03d %s\n",
4186 mono_class_interface_offset (class, ic),
4187 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4193 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
4198 char *name = mono_type_get_full_name (class);
4199 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("VTable setup of type %s failed", name));
4202 g_hash_table_destroy (override_map);
4204 g_slist_free (virt_methods);
4209 * mono_method_get_vtable_slot:
4211 * Returns method->slot, computing it if neccesary. Return -1 on failure.
4212 * LOCKING: Acquires the loader lock.
4214 * FIXME Use proper MonoError machinery here.
4217 mono_method_get_vtable_slot (MonoMethod *method)
4219 if (method->slot == -1) {
4220 mono_class_setup_vtable (method->klass);
4221 if (method->klass->exception_type)
4223 g_assert (method->slot != -1);
4225 return method->slot;
4229 * mono_method_get_vtable_index:
4232 * Returns the index into the runtime vtable to access the method or,
4233 * in the case of a virtual generic method, the virtual generic method
4234 * thunk. Returns -1 on failure.
4236 * FIXME Use proper MonoError machinery here.
4239 mono_method_get_vtable_index (MonoMethod *method)
4241 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
4242 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
4243 if (imethod->declaring->is_generic)
4244 return mono_method_get_vtable_slot (imethod->declaring);
4246 return mono_method_get_vtable_slot (method);
4249 static MonoMethod *default_ghc = NULL;
4250 static MonoMethod *default_finalize = NULL;
4251 static int finalize_slot = -1;
4252 static int ghc_slot = -1;
4255 initialize_object_slots (MonoClass *class)
4260 if (class == mono_defaults.object_class) {
4261 mono_class_setup_vtable (class);
4262 for (i = 0; i < class->vtable_size; ++i) {
4263 MonoMethod *cm = class->vtable [i];
4265 if (!strcmp (cm->name, "GetHashCode"))
4267 else if (!strcmp (cm->name, "Finalize"))
4271 g_assert (ghc_slot > 0);
4272 default_ghc = class->vtable [ghc_slot];
4274 g_assert (finalize_slot > 0);
4275 default_finalize = class->vtable [finalize_slot];
4280 MonoMethod *array_method;
4282 } GenericArrayMethodInfo;
4284 static int generic_array_method_num = 0;
4285 static GenericArrayMethodInfo *generic_array_method_info = NULL;
4288 generic_array_methods (MonoClass *class)
4290 int i, count_generic = 0;
4291 GList *list = NULL, *tmp;
4292 if (generic_array_method_num)
4293 return generic_array_method_num;
4294 mono_class_setup_methods (class->parent); /*This is setting up System.Array*/
4295 g_assert (!class->parent->exception_type); /*So hitting this assert is a huge problem*/
4296 for (i = 0; i < class->parent->method.count; i++) {
4297 MonoMethod *m = class->parent->methods [i];
4298 if (!strncmp (m->name, "InternalArray__", 15)) {
4300 list = g_list_prepend (list, m);
4303 list = g_list_reverse (list);
4304 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
4306 for (tmp = list; tmp; tmp = tmp->next) {
4307 const char *mname, *iname;
4309 MonoMethod *m = tmp->data;
4310 generic_array_method_info [i].array_method = m;
4311 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
4312 iname = "System.Collections.Generic.ICollection`1.";
4313 mname = m->name + 27;
4314 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
4315 iname = "System.Collections.Generic.IEnumerable`1.";
4316 mname = m->name + 27;
4317 } else if (!strncmp (m->name, "InternalArray__", 15)) {
4318 iname = "System.Collections.Generic.IList`1.";
4319 mname = m->name + 15;
4321 g_assert_not_reached ();
4324 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
4325 strcpy (name, iname);
4326 strcpy (name + strlen (iname), mname);
4327 generic_array_method_info [i].name = name;
4330 /*g_print ("array generic methods: %d\n", count_generic);*/
4332 generic_array_method_num = count_generic;
4334 return generic_array_method_num;
4338 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
4340 MonoGenericContext tmp_context;
4343 tmp_context.class_inst = NULL;
4344 tmp_context.method_inst = iface->generic_class->context.class_inst;
4345 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
4347 for (i = 0; i < generic_array_method_num; i++) {
4348 MonoMethod *m = generic_array_method_info [i].array_method;
4349 MonoMethod *inflated;
4351 inflated = mono_class_inflate_generic_method (m, &tmp_context);
4352 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
4357 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
4359 int len = strlen (s1) + strlen (s2) + 2;
4360 char *s = mono_image_alloc (image, len);
4363 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
4364 g_assert (result == len - 1);
4370 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
4372 gpointer exception_data = NULL;
4374 switch (error->exception_type) {
4375 case MONO_EXCEPTION_TYPE_LOAD:
4376 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
4379 case MONO_EXCEPTION_MISSING_METHOD:
4380 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
4383 case MONO_EXCEPTION_MISSING_FIELD: {
4384 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
4385 const char *class_name;
4388 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
4390 class_name = error->klass->name;
4392 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
4395 g_free ((void*)class_name);
4399 case MONO_EXCEPTION_FILE_NOT_FOUND: {
4402 if (error->ref_only)
4403 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.";
4405 msg = "Could not load file or assembly '%s' or one of its dependencies.";
4407 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
4411 case MONO_EXCEPTION_BAD_IMAGE:
4412 exception_data = error->msg;
4416 g_assert_not_reached ();
4419 mono_class_set_failure (class, error->exception_type, exception_data);
4424 * @class: the class to initialize
4426 * Compute the instance_size, class_size and other infos that cannot be
4427 * computed at mono_class_get() time. Also compute vtable_size if possible.
4428 * Returns TRUE on success or FALSE if there was a problem in loading
4429 * the type (incorrect assemblies, missing assemblies, methods, etc).
4431 * LOCKING: Acquires the loader lock.
4434 mono_class_init (MonoClass *class)
4437 MonoCachedClassInfo cached_info;
4438 gboolean has_cached_info;
4442 /* Double-checking locking pattern */
4444 return class->exception_type == MONO_EXCEPTION_NONE;
4446 /*g_print ("Init class %s\n", class->name);*/
4448 /* We do everything inside the lock to prevent races */
4449 mono_loader_lock ();
4451 if (class->inited) {
4452 mono_loader_unlock ();
4453 /* Somebody might have gotten in before us */
4454 return class->exception_type == MONO_EXCEPTION_NONE;
4457 if (class->init_pending) {
4458 mono_loader_unlock ();
4459 /* this indicates a cyclic dependency */
4460 g_error ("pending init %s.%s\n", class->name_space, class->name);
4463 class->init_pending = 1;
4465 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
4466 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
4471 if (class->byval_arg.type == MONO_TYPE_ARRAY || class->byval_arg.type == MONO_TYPE_SZARRAY) {
4472 MonoClass *element_class = class->element_class;
4473 if (!element_class->inited)
4474 mono_class_init (element_class);
4475 if (element_class->exception_type != MONO_EXCEPTION_NONE) {
4476 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4481 /* CAS - SecurityAction.InheritanceDemand */
4482 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
4483 mono_secman_inheritancedemand_class (class, class->parent);
4486 mono_stats.initialized_class_count++;
4488 if (class->generic_class && !class->generic_class->is_dynamic) {
4489 MonoClass *gklass = class->generic_class->container_class;
4491 mono_stats.generic_class_count++;
4493 class->method = gklass->method;
4494 class->field = gklass->field;
4496 mono_class_init (gklass);
4497 // FIXME: Why is this needed ?
4498 if (!gklass->exception_type)
4499 mono_class_setup_methods (gklass);
4500 if (gklass->exception_type) {
4501 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Generic Type Defintion failed to init"));
4505 if (MONO_CLASS_IS_INTERFACE (class))
4506 class->interface_id = mono_get_unique_iid (class);
4509 if (class->parent && !class->parent->inited)
4510 mono_class_init (class->parent);
4512 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
4514 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
4515 class->nested_classes_inited = TRUE;
4518 * Computes the size used by the fields, and their locations
4520 if (has_cached_info) {
4521 class->instance_size = cached_info.instance_size;
4522 class->sizes.class_size = cached_info.class_size;
4523 class->packing_size = cached_info.packing_size;
4524 class->min_align = cached_info.min_align;
4525 class->blittable = cached_info.blittable;
4526 class->has_references = cached_info.has_references;
4527 class->has_static_refs = cached_info.has_static_refs;
4528 class->no_special_static_fields = cached_info.no_special_static_fields;
4531 if (!class->size_inited){
4532 mono_class_setup_fields (class);
4533 if (class->exception_type || mono_loader_get_last_error ())
4537 /* Initialize arrays */
4539 class->method.count = 3 + (class->rank > 1? 2: 1);
4541 if (class->interface_count) {
4542 int count_generic = generic_array_methods (class);
4543 class->method.count += class->interface_count * count_generic;
4547 mono_class_setup_supertypes (class);
4550 initialize_object_slots (class);
4553 * Initialize the rest of the data without creating a generic vtable if possible.
4554 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
4555 * also avoid computing a generic vtable.
4557 if (has_cached_info) {
4559 class->vtable_size = cached_info.vtable_size;
4560 class->has_finalize = cached_info.has_finalize;
4561 class->ghcimpl = cached_info.ghcimpl;
4562 class->has_cctor = cached_info.has_cctor;
4563 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
4564 static int szarray_vtable_size = 0;
4567 if (!szarray_vtable_size) {
4568 mono_class_setup_vtable (class);
4569 szarray_vtable_size = class->vtable_size;
4571 class->vtable_size = szarray_vtable_size;
4573 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
4574 MonoClass *gklass = class->generic_class->container_class;
4576 /* Generic instance case */
4577 class->ghcimpl = gklass->ghcimpl;
4578 class->has_finalize = gklass->has_finalize;
4579 class->has_cctor = gklass->has_cctor;
4581 mono_class_setup_vtable (gklass);
4582 if (gklass->exception_type) {
4583 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4587 class->vtable_size = gklass->vtable_size;
4591 /* ghcimpl is not currently used
4593 if (class->parent) {
4594 MonoMethod *cmethod = class->vtable [ghc_slot];
4595 if (cmethod->is_inflated)
4596 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4597 if (cmethod == default_ghc) {
4603 /* Interfaces and valuetypes are not supposed to have finalizers */
4604 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
4605 MonoMethod *cmethod = NULL;
4607 if (class->parent && class->parent->has_finalize) {
4608 class->has_finalize = 1;
4610 if (class->type_token) {
4611 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
4612 } else if (class->parent) {
4613 /* FIXME: Optimize this */
4614 mono_class_setup_vtable (class);
4615 if (class->exception_type || mono_loader_get_last_error ())
4617 cmethod = class->vtable [finalize_slot];
4621 /* Check that this is really the finalizer method */
4622 mono_class_setup_vtable (class);
4623 if (class->exception_type || mono_loader_get_last_error ())
4626 g_assert (class->vtable_size > finalize_slot);
4628 class->has_finalize = 0;
4629 if (class->parent) {
4630 cmethod = class->vtable [finalize_slot];
4632 if (cmethod->is_inflated)
4633 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4634 if (cmethod != default_finalize) {
4635 class->has_finalize = 1;
4642 /* C# doesn't allow interfaces to have cctors */
4643 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
4644 MonoMethod *cmethod = NULL;
4646 if (class->type_token) {
4647 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
4648 /* The find_method function ignores the 'flags' argument */
4649 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
4650 class->has_cctor = 1;
4652 mono_class_setup_methods (class);
4653 if (class->exception_type)
4656 for (i = 0; i < class->method.count; ++i) {
4657 MonoMethod *method = class->methods [i];
4658 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
4659 (strcmp (".cctor", method->name) == 0)) {
4660 class->has_cctor = 1;
4668 if (class->parent) {
4669 /* This will compute class->parent->vtable_size for some classes */
4670 mono_class_init (class->parent);
4671 if (class->parent->exception_type) {
4672 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4675 if (mono_loader_get_last_error ())
4677 if (!class->parent->vtable_size) {
4678 /* FIXME: Get rid of this somehow */
4679 mono_class_setup_vtable (class->parent);
4680 if (class->parent->exception_type) {
4681 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4684 if (mono_loader_get_last_error ())
4687 setup_interface_offsets (class, class->parent->vtable_size);
4689 setup_interface_offsets (class, 0);
4692 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4693 mono_security_core_clr_check_inheritance (class);
4695 if (mono_loader_get_last_error ()) {
4696 if (class->exception_type == MONO_EXCEPTION_NONE) {
4697 set_failure_from_loader_error (class, mono_loader_get_last_error ());
4699 mono_loader_clear_error ();
4705 /* Because of the double-checking locking pattern */
4706 mono_memory_barrier ();
4708 class->init_pending = 0;
4710 mono_loader_unlock ();
4712 if (mono_debugger_class_init_func)
4713 mono_debugger_class_init_func (class);
4715 return class->exception_type == MONO_EXCEPTION_NONE;
4719 is_corlib_image (MonoImage *image)
4721 /* FIXME: allow the dynamic case for our compilers and with full trust */
4723 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
4725 return image == mono_defaults.corlib;
4729 * LOCKING: this assumes the loader lock is held
4732 mono_class_setup_mono_type (MonoClass *class)
4734 const char *name = class->name;
4735 const char *nspace = class->name_space;
4736 gboolean is_corlib = is_corlib_image (class->image);
4738 class->this_arg.byref = 1;
4739 class->this_arg.data.klass = class;
4740 class->this_arg.type = MONO_TYPE_CLASS;
4741 class->byval_arg.data.klass = class;
4742 class->byval_arg.type = MONO_TYPE_CLASS;
4744 if (is_corlib && !strcmp (nspace, "System")) {
4745 if (!strcmp (name, "ValueType")) {
4747 * do not set the valuetype bit for System.ValueType.
4748 * class->valuetype = 1;
4750 class->blittable = TRUE;
4751 } else if (!strcmp (name, "Enum")) {
4753 * do not set the valuetype bit for System.Enum.
4754 * class->valuetype = 1;
4756 class->valuetype = 0;
4757 class->enumtype = 0;
4758 } else if (!strcmp (name, "Object")) {
4759 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
4760 } else if (!strcmp (name, "String")) {
4761 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
4762 } else if (!strcmp (name, "TypedReference")) {
4763 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
4767 if (class->valuetype) {
4768 int t = MONO_TYPE_VALUETYPE;
4770 if (is_corlib && !strcmp (nspace, "System")) {
4773 if (!strcmp (name, "Boolean")) {
4774 t = MONO_TYPE_BOOLEAN;
4775 } else if (!strcmp(name, "Byte")) {
4777 class->blittable = TRUE;
4781 if (!strcmp (name, "Char")) {
4786 if (!strcmp (name, "Double")) {
4788 class->blittable = TRUE;
4792 if (!strcmp (name, "Int32")) {
4794 class->blittable = TRUE;
4795 } else if (!strcmp(name, "Int16")) {
4797 class->blittable = TRUE;
4798 } else if (!strcmp(name, "Int64")) {
4800 class->blittable = TRUE;
4801 } else if (!strcmp(name, "IntPtr")) {
4803 class->blittable = TRUE;
4807 if (!strcmp (name, "Single")) {
4809 class->blittable = TRUE;
4810 } else if (!strcmp(name, "SByte")) {
4812 class->blittable = TRUE;
4816 if (!strcmp (name, "UInt32")) {
4818 class->blittable = TRUE;
4819 } else if (!strcmp(name, "UInt16")) {
4821 class->blittable = TRUE;
4822 } else if (!strcmp(name, "UInt64")) {
4824 class->blittable = TRUE;
4825 } else if (!strcmp(name, "UIntPtr")) {
4827 class->blittable = TRUE;
4831 if (!strcmp (name, "TypedReference")) {
4832 t = MONO_TYPE_TYPEDBYREF;
4833 class->blittable = TRUE;
4837 if (!strcmp (name, "Void")) {
4845 class->this_arg.type = class->byval_arg.type = t;
4848 if (MONO_CLASS_IS_INTERFACE (class))
4849 class->interface_id = mono_get_unique_iid (class);
4854 * COM initialization (using mono_init_com_types) is delayed until needed.
4855 * However when a [ComImport] attribute is present on a type it will trigger
4856 * the initialization. This is not a problem unless the BCL being executed
4857 * lacks the types that COM depends on (e.g. Variant on Silverlight).
4860 init_com_from_comimport (MonoClass *class)
4862 /* we don't always allow COM initialization under the CoreCLR (e.g. Moonlight does not require it) */
4863 if ((mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)) {
4864 /* but some other CoreCLR user could requires it for their platform (i.e. trusted) code */
4865 if (!mono_security_core_clr_determine_platform_image (class->image)) {
4866 /* but it can not be made available for application (i.e. user code) since all COM calls
4867 * are considered native calls. In this case we fail with a TypeLoadException (just like
4868 * Silverlight 2 does */
4869 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4873 /* FIXME : we should add an extra checks to ensure COM can be initialized properly before continuing */
4874 mono_init_com_types ();
4878 * LOCKING: this assumes the loader lock is held
4881 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
4883 gboolean system_namespace;
4884 gboolean is_corlib = is_corlib_image (class->image);
4886 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
4888 /* if root of the hierarchy */
4889 if (system_namespace && !strcmp (class->name, "Object")) {
4890 class->parent = NULL;
4891 class->instance_size = sizeof (MonoObject);
4894 if (!strcmp (class->name, "<Module>")) {
4895 class->parent = NULL;
4896 class->instance_size = 0;
4900 if (!MONO_CLASS_IS_INTERFACE (class)) {
4901 /* Imported COM Objects always derive from __ComObject. */
4902 if (MONO_CLASS_IS_IMPORT (class)) {
4903 init_com_from_comimport (class);
4904 if (parent == mono_defaults.object_class)
4905 parent = mono_defaults.com_object_class;
4908 /* set the parent to something useful and safe, but mark the type as broken */
4909 parent = mono_defaults.object_class;
4910 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4913 class->parent = parent;
4915 if (parent->generic_class && !parent->name) {
4917 * If the parent is a generic instance, we may get
4918 * called before it is fully initialized, especially
4919 * before it has its name.
4924 class->marshalbyref = parent->marshalbyref;
4925 class->contextbound = parent->contextbound;
4926 class->delegate = parent->delegate;
4927 if (MONO_CLASS_IS_IMPORT (class))
4928 class->is_com_object = 1;
4930 class->is_com_object = parent->is_com_object;
4932 if (system_namespace) {
4933 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
4934 class->marshalbyref = 1;
4936 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
4937 class->contextbound = 1;
4939 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
4940 class->delegate = 1;
4943 if (class->parent->enumtype || (is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
4944 (strcmp (class->parent->name_space, "System") == 0)))
4945 class->valuetype = 1;
4946 if (is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
4947 class->valuetype = class->enumtype = 1;
4949 /*class->enumtype = class->parent->enumtype; */
4950 mono_class_setup_supertypes (class);
4952 /* initialize com types if COM interfaces are present */
4953 if (MONO_CLASS_IS_IMPORT (class))
4954 init_com_from_comimport (class);
4955 class->parent = NULL;
4961 * mono_class_setup_supertypes:
4964 * Build the data structure needed to make fast type checks work.
4965 * This currently sets two fields in @class:
4966 * - idepth: distance between @class and System.Object in the type
4968 * - supertypes: array of classes: each element has a class in the hierarchy
4969 * starting from @class up to System.Object
4971 * LOCKING: this assumes the loader lock is held
4974 mono_class_setup_supertypes (MonoClass *class)
4978 if (class->supertypes)
4981 if (class->parent && !class->parent->supertypes)
4982 mono_class_setup_supertypes (class->parent);
4984 class->idepth = class->parent->idepth + 1;
4988 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
4989 class->supertypes = mono_class_alloc0 (class, sizeof (MonoClass *) * ms);
4991 if (class->parent) {
4992 class->supertypes [class->idepth - 1] = class;
4993 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
4995 class->supertypes [0] = class;
5000 * mono_class_create_from_typedef:
5001 * @image: image where the token is valid
5002 * @type_token: typedef token
5004 * Create the MonoClass* representing the specified type token.
5005 * @type_token must be a TypeDef token.
5008 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
5010 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5011 MonoClass *class, *parent = NULL;
5012 guint32 cols [MONO_TYPEDEF_SIZE];
5013 guint32 cols_next [MONO_TYPEDEF_SIZE];
5014 guint tidx = mono_metadata_token_index (type_token);
5015 MonoGenericContext *context = NULL;
5016 const char *name, *nspace;
5018 MonoClass **interfaces;
5019 guint32 field_last, method_last;
5020 guint32 nesting_tokeen;
5022 if (mono_metadata_token_table (type_token) != MONO_TABLE_TYPEDEF || tidx > tt->rows)
5025 mono_loader_lock ();
5027 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
5028 mono_loader_unlock ();
5032 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5034 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5035 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5037 class = mono_image_alloc0 (image, sizeof (MonoClass));
5040 class->name_space = nspace;
5042 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
5044 class->image = image;
5045 class->type_token = type_token;
5046 class->flags = cols [MONO_TYPEDEF_FLAGS];
5048 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
5050 classes_size += sizeof (MonoClass);
5053 * Check whether we're a generic type definition.
5055 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
5056 if (class->generic_container) {
5057 class->is_generic = 1;
5058 class->generic_container->owner.klass = class;
5059 context = &class->generic_container->context;
5062 if (cols [MONO_TYPEDEF_EXTENDS]) {
5063 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
5065 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
5066 /*WARNING: this must satisfy mono_metadata_type_hash*/
5067 class->this_arg.byref = 1;
5068 class->this_arg.data.klass = class;
5069 class->this_arg.type = MONO_TYPE_CLASS;
5070 class->byval_arg.data.klass = class;
5071 class->byval_arg.type = MONO_TYPE_CLASS;
5073 parent = mono_class_get_full (image, parent_token, context);
5075 if (parent == NULL){
5076 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
5077 mono_loader_unlock ();
5078 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5083 mono_class_setup_parent (class, parent);
5085 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
5086 mono_class_setup_mono_type (class);
5089 * This might access class->byval_arg for recursion generated by generic constraints,
5090 * so it has to come after setup_mono_type ().
5092 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token))) {
5093 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
5094 if (!class->nested_in) {
5095 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
5096 mono_loader_unlock ();
5097 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5102 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
5106 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
5110 class->cast_class = class->element_class = class;
5112 if (!class->enumtype) {
5113 if (!mono_metadata_interfaces_from_typedef_full (
5114 image, type_token, &interfaces, &icount, FALSE, context)){
5115 mono_loader_unlock ();
5116 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5120 class->interfaces = interfaces;
5121 class->interface_count = icount;
5122 class->interfaces_inited = 1;
5125 /*g_print ("Load class %s\n", name);*/
5128 * Compute the field and method lists
5130 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
5131 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
5133 if (tt->rows > tidx){
5134 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
5135 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
5136 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
5138 field_last = image->tables [MONO_TABLE_FIELD].rows;
5139 method_last = image->tables [MONO_TABLE_METHOD].rows;
5142 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
5143 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
5144 class->field.count = field_last - class->field.first;
5146 class->field.count = 0;
5148 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
5149 class->method.count = method_last - class->method.first;
5151 class->method.count = 0;
5153 /* reserve space to store vector pointer in arrays */
5154 if (is_corlib_image (image) && !strcmp (nspace, "System") && !strcmp (name, "Array")) {
5155 class->instance_size += 2 * sizeof (gpointer);
5156 g_assert (class->field.count == 0);
5159 if (class->enumtype) {
5160 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
5161 if (!enum_basetype) {
5162 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5163 mono_loader_unlock ();
5164 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5167 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
5171 * If we're a generic type definition, load the constraints.
5172 * We must do this after the class has been constructed to make certain recursive scenarios
5175 if (class->generic_container && !mono_metadata_load_generic_param_constraints_full (image, type_token, class->generic_container)){
5176 char *class_name = g_strdup_printf("%s.%s", class->name_space, class->name);
5177 char *error = concat_two_strings_with_zero (class->image, class_name, class->image->assembly_name);
5178 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, error);
5179 g_free (class_name);
5180 mono_loader_unlock ();
5181 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5185 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
5186 if (!strncmp (name, "Vector", 6))
5187 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");
5190 mono_loader_unlock ();
5192 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
5197 /** is klass Nullable<T>? */
5199 mono_class_is_nullable (MonoClass *klass)
5201 return klass->generic_class != NULL &&
5202 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
5206 /** if klass is T? return T */
5208 mono_class_get_nullable_param (MonoClass *klass)
5210 g_assert (mono_class_is_nullable (klass));
5211 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
5215 * Create the `MonoClass' for an instantiation of a generic type.
5216 * We only do this if we actually need it.
5219 mono_generic_class_get_class (MonoGenericClass *gclass)
5221 MonoClass *klass, *gklass;
5223 mono_loader_lock ();
5224 if (gclass->cached_class) {
5225 mono_loader_unlock ();
5226 return gclass->cached_class;
5229 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
5230 klass = gclass->cached_class;
5232 gklass = gclass->container_class;
5234 if (gklass->nested_in) {
5236 * FIXME: the nested type context should include everything the
5237 * nesting context should have, but it may also have additional
5238 * generic parameters...
5240 klass->nested_in = mono_class_inflate_generic_class (gklass->nested_in,
5241 mono_generic_class_get_context (gclass));
5244 klass->name = gklass->name;
5245 klass->name_space = gklass->name_space;
5247 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5249 klass->image = gklass->image;
5250 klass->flags = gklass->flags;
5251 klass->type_token = gklass->type_token;
5252 klass->field.count = gklass->field.count;
5254 klass->is_inflated = 1;
5255 klass->generic_class = gclass;
5257 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
5258 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
5259 klass->this_arg.byref = TRUE;
5260 klass->enumtype = gklass->enumtype;
5261 klass->valuetype = gklass->valuetype;
5263 klass->cast_class = klass->element_class = klass;
5265 if (mono_class_is_nullable (klass))
5266 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
5269 * We're not interested in the nested classes of a generic instance.
5270 * We use the generic type definition to look for nested classes.
5273 if (gklass->parent) {
5274 klass->parent = mono_class_inflate_generic_class (gklass->parent, mono_generic_class_get_context (gclass));
5278 mono_class_setup_parent (klass, klass->parent);
5280 if (klass->enumtype) {
5281 klass->cast_class = gklass->cast_class;
5282 klass->element_class = gklass->element_class;
5285 if (gclass->is_dynamic) {
5288 mono_class_setup_supertypes (klass);
5290 if (klass->enumtype) {
5292 * For enums, gklass->fields might not been set, but instance_size etc. is
5293 * already set in mono_reflection_create_internal_class (). For non-enums,
5294 * these will be computed normally in mono_class_layout_fields ().
5296 klass->instance_size = gklass->instance_size;
5297 klass->sizes.class_size = gklass->sizes.class_size;
5298 klass->size_inited = 1;
5302 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5304 inflated_classes ++;
5305 inflated_classes_size += sizeof (MonoClass);
5307 mono_loader_unlock ();
5313 make_generic_param_class (MonoGenericParam *param, MonoImage *image, gboolean is_mvar, MonoGenericParamInfo *pinfo)
5315 MonoClass *klass, **ptr;
5317 MonoGenericContainer *container = mono_generic_param_owner (param);
5321 image = mono_defaults.corlib;
5323 klass = mono_image_alloc0 (image, sizeof (MonoClass));
5324 classes_size += sizeof (MonoClass);
5327 klass->name = pinfo->name;
5329 int n = mono_generic_param_num (param);
5330 klass->name = mono_image_alloc0 (image, 16);
5331 sprintf ((char*)klass->name, "%d", n);
5336 MonoMethod *omethod = container->owner.method;
5337 klass->name_space = (omethod && omethod->klass) ? omethod->klass->name_space : "";
5339 MonoClass *oklass = container->owner.klass;
5340 klass->name_space = oklass ? oklass->name_space : "";
5343 klass->name_space = "";
5346 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5350 for (ptr = pinfo->constraints; ptr && *ptr; ptr++, count++)
5354 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (pinfo->constraints [0])) {
5355 klass->parent = pinfo->constraints [0];
5357 } else if (pinfo && pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
5358 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
5360 klass->parent = mono_defaults.object_class;
5363 if (count - pos > 0) {
5364 klass->interface_count = count - pos;
5365 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
5366 klass->interfaces_inited = TRUE;
5367 for (i = pos; i < count; i++)
5368 klass->interfaces [i - pos] = pinfo->constraints [i];
5371 klass->image = image;
5373 klass->inited = TRUE;
5374 klass->cast_class = klass->element_class = klass;
5375 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
5377 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5378 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
5379 klass->this_arg.byref = TRUE;
5381 /* We don't use type_token for VAR since only classes can use it (not arrays, pointer, VARs, etc) */
5382 klass->sizes.generic_param_token = pinfo ? pinfo->token : 0;
5384 /*Init these fields to sane values*/
5385 klass->min_align = 1;
5386 klass->instance_size = sizeof (gpointer);
5387 klass->size_inited = 1;
5389 mono_class_setup_supertypes (klass);
5391 if (count - pos > 0) {
5392 mono_class_setup_vtable (klass->parent);
5393 g_assert (!klass->parent->exception_type);
5394 setup_interface_offsets (klass, klass->parent->vtable_size);
5400 #define FAST_CACHE_SIZE 16
5401 static MonoClass *var_cache_fast [FAST_CACHE_SIZE];
5402 static MonoClass *mvar_cache_fast [FAST_CACHE_SIZE];
5403 static GHashTable *var_cache_slow;
5404 static GHashTable *mvar_cache_slow;
5407 get_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar)
5409 int n = mono_generic_param_num (param);
5412 if (n < FAST_CACHE_SIZE)
5413 return (is_mvar ? mvar_cache_fast : var_cache_fast) [n];
5414 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
5415 return ht ? g_hash_table_lookup (ht, GINT_TO_POINTER (n)) : NULL;
5419 set_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar, MonoClass *klass)
5421 int n = mono_generic_param_num (param);
5424 if (n < FAST_CACHE_SIZE) {
5425 (is_mvar ? mvar_cache_fast : var_cache_fast) [n] = klass;
5428 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
5430 ht = g_hash_table_new (NULL, NULL);
5432 mvar_cache_slow = ht;
5434 var_cache_slow = ht;
5437 g_hash_table_insert (ht, GINT_TO_POINTER (n), klass);
5441 * LOCKING: Acquires the loader lock.
5444 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
5446 MonoGenericContainer *container = mono_generic_param_owner (param);
5447 MonoGenericParamInfo *pinfo;
5450 mono_loader_lock ();
5453 pinfo = mono_generic_param_info (param);
5454 if (pinfo->pklass) {
5455 mono_loader_unlock ();
5456 return pinfo->pklass;
5462 klass = get_anon_gparam_class (param, is_mvar);
5464 mono_loader_unlock ();
5469 if (!image && container) {
5471 MonoMethod *method = container->owner.method;
5472 image = (method && method->klass) ? method->klass->image : NULL;
5474 MonoClass *klass = container->owner.klass;
5475 // FIXME: 'klass' should not be null
5476 // But, monodis creates GenericContainers without associating a owner to it
5477 image = klass ? klass->image : NULL;
5481 klass = make_generic_param_class (param, image, is_mvar, pinfo);
5483 mono_memory_barrier ();
5486 pinfo->pklass = klass;
5488 set_anon_gparam_class (param, is_mvar, klass);
5490 mono_loader_unlock ();
5492 /* FIXME: Should this go inside 'make_generic_param_klass'? */
5493 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5499 mono_ptr_class_get (MonoType *type)
5502 MonoClass *el_class;
5506 el_class = mono_class_from_mono_type (type);
5507 image = el_class->image;
5509 mono_loader_lock ();
5511 if (!image->ptr_cache)
5512 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5514 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
5515 mono_loader_unlock ();
5518 result = mono_image_alloc0 (image, sizeof (MonoClass));
5520 classes_size += sizeof (MonoClass);
5522 result->parent = NULL; /* no parent for PTR types */
5523 result->name_space = el_class->name_space;
5524 name = g_strdup_printf ("%s*", el_class->name);
5525 result->name = mono_image_strdup (image, name);
5528 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5530 result->image = el_class->image;
5531 result->inited = TRUE;
5532 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
5533 /* Can pointers get boxed? */
5534 result->instance_size = sizeof (gpointer);
5535 result->cast_class = result->element_class = el_class;
5536 result->blittable = TRUE;
5538 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
5539 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
5540 result->this_arg.byref = TRUE;
5542 mono_class_setup_supertypes (result);
5544 g_hash_table_insert (image->ptr_cache, el_class, result);
5546 mono_loader_unlock ();
5548 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5554 mono_fnptr_class_get (MonoMethodSignature *sig)
5557 static GHashTable *ptr_hash = NULL;
5559 /* FIXME: These should be allocate from a mempool as well, but which one ? */
5561 mono_loader_lock ();
5564 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5566 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
5567 mono_loader_unlock ();
5570 result = g_new0 (MonoClass, 1);
5572 result->parent = NULL; /* no parent for PTR types */
5573 result->name_space = "System";
5574 result->name = "MonoFNPtrFakeClass";
5576 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5578 result->image = mono_defaults.corlib; /* need to fix... */
5579 result->inited = TRUE;
5580 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
5581 /* Can pointers get boxed? */
5582 result->instance_size = sizeof (gpointer);
5583 result->cast_class = result->element_class = result;
5584 result->blittable = TRUE;
5586 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
5587 result->this_arg.data.method = result->byval_arg.data.method = sig;
5588 result->this_arg.byref = TRUE;
5589 result->blittable = TRUE;
5591 mono_class_setup_supertypes (result);
5593 g_hash_table_insert (ptr_hash, sig, result);
5595 mono_loader_unlock ();
5597 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5603 mono_class_from_mono_type (MonoType *type)
5605 switch (type->type) {
5606 case MONO_TYPE_OBJECT:
5607 return type->data.klass? type->data.klass: mono_defaults.object_class;
5608 case MONO_TYPE_VOID:
5609 return type->data.klass? type->data.klass: mono_defaults.void_class;
5610 case MONO_TYPE_BOOLEAN:
5611 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
5612 case MONO_TYPE_CHAR:
5613 return type->data.klass? type->data.klass: mono_defaults.char_class;
5615 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
5617 return type->data.klass? type->data.klass: mono_defaults.byte_class;
5619 return type->data.klass? type->data.klass: mono_defaults.int16_class;
5621 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
5623 return type->data.klass? type->data.klass: mono_defaults.int32_class;
5625 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
5627 return type->data.klass? type->data.klass: mono_defaults.int_class;
5629 return type->data.klass? type->data.klass: mono_defaults.uint_class;
5631 return type->data.klass? type->data.klass: mono_defaults.int64_class;
5633 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
5635 return type->data.klass? type->data.klass: mono_defaults.single_class;
5637 return type->data.klass? type->data.klass: mono_defaults.double_class;
5638 case MONO_TYPE_STRING:
5639 return type->data.klass? type->data.klass: mono_defaults.string_class;
5640 case MONO_TYPE_TYPEDBYREF:
5641 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
5642 case MONO_TYPE_ARRAY:
5643 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
5645 return mono_ptr_class_get (type->data.type);
5646 case MONO_TYPE_FNPTR:
5647 return mono_fnptr_class_get (type->data.method);
5648 case MONO_TYPE_SZARRAY:
5649 return mono_array_class_get (type->data.klass, 1);
5650 case MONO_TYPE_CLASS:
5651 case MONO_TYPE_VALUETYPE:
5652 return type->data.klass;
5653 case MONO_TYPE_GENERICINST:
5654 return mono_generic_class_get_class (type->data.generic_class);
5656 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
5657 case MONO_TYPE_MVAR:
5658 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
5660 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
5661 g_assert_not_reached ();
5668 * mono_type_retrieve_from_typespec
5669 * @image: context where the image is created
5670 * @type_spec: typespec token
5671 * @context: the generic context used to evaluate generic instantiations in
5674 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate, MonoError *error)
5676 MonoType *t = mono_type_create_from_typespec (image, type_spec);
5678 mono_error_init (error);
5679 *did_inflate = FALSE;
5682 char *name = mono_class_name_from_token (image, type_spec);
5683 char *assembly = mono_assembly_name_from_token (image, type_spec);
5684 mono_error_set_type_load_name (error, name, assembly, "Could not resolve typespec token %08x", type_spec);
5688 if (context && (context->class_inst || context->method_inst)) {
5689 MonoType *inflated = inflate_generic_type (NULL, t, context, error);
5691 if (!mono_error_ok (error))
5696 *did_inflate = TRUE;
5703 * mono_class_create_from_typespec
5704 * @image: context where the image is created
5705 * @type_spec: typespec token
5706 * @context: the generic context used to evaluate generic instantiations in
5709 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, MonoError *error)
5712 gboolean inflated = FALSE;
5713 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated, error);
5714 if (!mono_error_ok (error))
5716 ret = mono_class_from_mono_type (t);
5718 mono_metadata_free_type (t);
5723 * mono_bounded_array_class_get:
5724 * @element_class: element class
5725 * @rank: the dimension of the array class
5726 * @bounded: whenever the array has non-zero bounds
5728 * Returns: a class object describing the array with element type @element_type and
5732 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
5736 MonoClass *parent = NULL;
5737 GSList *list, *rootlist = NULL;
5740 gboolean corlib_type = FALSE;
5742 g_assert (rank <= 255);
5745 /* bounded only matters for one-dimensional arrays */
5748 image = eclass->image;
5750 if (rank == 1 && !bounded) {
5752 * This case is very frequent not just during compilation because of calls
5753 * from mono_class_from_mono_type (), mono_array_new (),
5754 * Array:CreateInstance (), etc, so use a separate cache + a separate lock.
5756 EnterCriticalSection (&image->szarray_cache_lock);
5757 if (!image->szarray_cache)
5758 image->szarray_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5759 class = g_hash_table_lookup (image->szarray_cache, eclass);
5760 LeaveCriticalSection (&image->szarray_cache_lock);
5764 mono_loader_lock ();
5766 mono_loader_lock ();
5768 if (!image->array_cache)
5769 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5771 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
5772 for (; list; list = list->next) {
5774 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
5775 mono_loader_unlock ();
5782 /* for the building corlib use System.Array from it */
5783 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
5784 parent = mono_class_from_name (image, "System", "Array");
5787 parent = mono_defaults.array_class;
5788 if (!parent->inited)
5789 mono_class_init (parent);
5792 class = mono_image_alloc0 (image, sizeof (MonoClass));
5794 class->image = image;
5795 class->name_space = eclass->name_space;
5796 nsize = strlen (eclass->name);
5797 name = g_malloc (nsize + 2 + rank + 1);
5798 memcpy (name, eclass->name, nsize);
5801 memset (name + nsize + 1, ',', rank - 1);
5803 name [nsize + rank] = '*';
5804 name [nsize + rank + bounded] = ']';
5805 name [nsize + rank + bounded + 1] = 0;
5806 class->name = mono_image_strdup (image, name);
5809 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
5811 classes_size += sizeof (MonoClass);
5813 class->type_token = 0;
5814 /* all arrays are marked serializable and sealed, bug #42779 */
5815 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED | TYPE_ATTRIBUTE_PUBLIC;
5816 class->parent = parent;
5817 class->instance_size = mono_class_instance_size (class->parent);
5819 if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
5820 if (!eclass->ref_info_handle || eclass->wastypebuilder) {
5821 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
5822 g_assert (eclass->ref_info_handle && !eclass->wastypebuilder);
5824 /* element_size -1 is ok as this is not an instantitable type*/
5825 class->sizes.element_size = -1;
5827 class->sizes.element_size = mono_class_array_element_size (eclass);
5829 mono_class_setup_supertypes (class);
5831 if (eclass->generic_class)
5832 mono_class_init (eclass);
5833 if (!eclass->size_inited)
5834 mono_class_setup_fields (eclass);
5835 if (eclass->exception_type) /*FIXME we fail the array type, but we have to let other fields be set.*/
5836 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5838 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
5842 if (eclass->enumtype)
5843 class->cast_class = eclass->element_class;
5845 class->cast_class = eclass;
5847 switch (class->cast_class->byval_arg.type) {
5849 class->cast_class = mono_defaults.byte_class;
5852 class->cast_class = mono_defaults.int16_class;
5855 #if SIZEOF_VOID_P == 4
5859 class->cast_class = mono_defaults.int32_class;
5862 #if SIZEOF_VOID_P == 8
5866 class->cast_class = mono_defaults.int64_class;
5870 class->element_class = eclass;
5872 if ((rank > 1) || bounded) {
5873 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
5874 class->byval_arg.type = MONO_TYPE_ARRAY;
5875 class->byval_arg.data.array = at;
5876 at->eklass = eclass;
5878 /* FIXME: complete.... */
5880 class->byval_arg.type = MONO_TYPE_SZARRAY;
5881 class->byval_arg.data.klass = eclass;
5883 class->this_arg = class->byval_arg;
5884 class->this_arg.byref = 1;
5889 class->generic_container = eclass->generic_container;
5891 if (rank == 1 && !bounded) {
5892 MonoClass *prev_class;
5894 EnterCriticalSection (&image->szarray_cache_lock);
5895 prev_class = g_hash_table_lookup (image->szarray_cache, eclass);
5897 /* Someone got in before us */
5900 g_hash_table_insert (image->szarray_cache, eclass, class);
5901 LeaveCriticalSection (&image->szarray_cache_lock);
5903 list = g_slist_append (rootlist, class);
5904 g_hash_table_insert (image->array_cache, eclass, list);
5907 mono_loader_unlock ();
5909 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
5915 * mono_array_class_get:
5916 * @element_class: element class
5917 * @rank: the dimension of the array class
5919 * Returns: a class object describing the array with element type @element_type and
5923 mono_array_class_get (MonoClass *eclass, guint32 rank)
5925 return mono_bounded_array_class_get (eclass, rank, FALSE);
5929 * mono_class_instance_size:
5932 * Returns: the size of an object instance
5935 mono_class_instance_size (MonoClass *klass)
5937 if (!klass->size_inited)
5938 mono_class_init (klass);
5940 return klass->instance_size;
5944 * mono_class_min_align:
5947 * Returns: minimm alignment requirements
5950 mono_class_min_align (MonoClass *klass)
5952 if (!klass->size_inited)
5953 mono_class_init (klass);
5955 return klass->min_align;
5959 * mono_class_value_size:
5962 * This function is used for value types, and return the
5963 * space and the alignment to store that kind of value object.
5965 * Returns: the size of a value of kind @klass
5968 mono_class_value_size (MonoClass *klass, guint32 *align)
5972 /* fixme: check disable, because we still have external revereces to
5973 * mscorlib and Dummy Objects
5975 /*g_assert (klass->valuetype);*/
5977 size = mono_class_instance_size (klass) - sizeof (MonoObject);
5980 *align = klass->min_align;
5986 * mono_class_data_size:
5989 * Returns: the size of the static class data
5992 mono_class_data_size (MonoClass *klass)
5995 mono_class_init (klass);
5997 /* in arrays, sizes.class_size is unioned with element_size
5998 * and arrays have no static fields
6002 return klass->sizes.class_size;
6006 * Auxiliary routine to mono_class_get_field
6008 * Takes a field index instead of a field token.
6010 static MonoClassField *
6011 mono_class_get_field_idx (MonoClass *class, int idx)
6013 mono_class_setup_fields_locking (class);
6014 if (class->exception_type)
6018 if (class->image->uncompressed_metadata) {
6020 * class->field.first points to the FieldPtr table, while idx points into the
6021 * Field table, so we have to do a search.
6023 /*FIXME this is broken for types with multiple fields with the same name.*/
6024 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
6027 for (i = 0; i < class->field.count; ++i)
6028 if (mono_field_get_name (&class->fields [i]) == name)
6029 return &class->fields [i];
6030 g_assert_not_reached ();
6032 if (class->field.count) {
6033 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
6034 return &class->fields [idx - class->field.first];
6038 class = class->parent;
6044 * mono_class_get_field:
6045 * @class: the class to lookup the field.
6046 * @field_token: the field token
6048 * Returns: A MonoClassField representing the type and offset of
6049 * the field, or a NULL value if the field does not belong to this
6053 mono_class_get_field (MonoClass *class, guint32 field_token)
6055 int idx = mono_metadata_token_index (field_token);
6057 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
6059 return mono_class_get_field_idx (class, idx - 1);
6063 * mono_class_get_field_from_name:
6064 * @klass: the class to lookup the field.
6065 * @name: the field name
6067 * Search the class @klass and it's parents for a field with the name @name.
6069 * Returns: the MonoClassField pointer of the named field or NULL
6072 mono_class_get_field_from_name (MonoClass *klass, const char *name)
6074 return mono_class_get_field_from_name_full (klass, name, NULL);
6078 * mono_class_get_field_from_name_full:
6079 * @klass: the class to lookup the field.
6080 * @name: the field name
6081 * @type: the type of the fields. This optional.
6083 * Search the class @klass and it's parents for a field with the name @name and type @type.
6085 * If @klass is an inflated generic type, the type comparison is done with the equivalent field
6086 * of its generic type definition.
6088 * Returns: the MonoClassField pointer of the named field or NULL
6091 mono_class_get_field_from_name_full (MonoClass *klass, const char *name, MonoType *type)
6095 mono_class_setup_fields_locking (klass);
6096 if (klass->exception_type)
6100 for (i = 0; i < klass->field.count; ++i) {
6101 MonoClassField *field = &klass->fields [i];
6103 if (strcmp (name, mono_field_get_name (field)) != 0)
6107 MonoType *field_type = mono_metadata_get_corresponding_field_from_generic_type_definition (field)->type;
6108 if (!mono_metadata_type_equal_full (type, field_type, TRUE))
6113 klass = klass->parent;
6119 * mono_class_get_field_token:
6120 * @field: the field we need the token of
6122 * Get the token of a field. Note that the tokesn is only valid for the image
6123 * the field was loaded from. Don't use this function for fields in dynamic types.
6125 * Returns: the token representing the field in the image it was loaded from.
6128 mono_class_get_field_token (MonoClassField *field)
6130 MonoClass *klass = field->parent;
6133 mono_class_setup_fields_locking (klass);
6134 if (klass->exception_type)
6138 for (i = 0; i < klass->field.count; ++i) {
6139 if (&klass->fields [i] == field) {
6140 int idx = klass->field.first + i + 1;
6142 if (klass->image->uncompressed_metadata)
6143 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
6144 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
6147 klass = klass->parent;
6150 g_assert_not_reached ();
6155 mono_field_get_index (MonoClassField *field)
6157 int index = field - field->parent->fields;
6159 g_assert (index >= 0 && index < field->parent->field.count);
6165 * mono_class_get_field_default_value:
6167 * Return the default value of the field as a pointer into the metadata blob.
6170 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
6173 guint32 constant_cols [MONO_CONSTANT_SIZE];
6175 MonoClass *klass = field->parent;
6177 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
6179 if (!klass->ext || !klass->ext->field_def_values) {
6180 mono_loader_lock ();
6181 mono_class_alloc_ext (klass);
6182 if (!klass->ext->field_def_values)
6183 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
6184 mono_loader_unlock ();
6187 field_index = mono_field_get_index (field);
6189 if (!klass->ext->field_def_values [field_index].data) {
6190 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
6192 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
6194 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6195 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
6196 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
6199 *def_type = klass->ext->field_def_values [field_index].def_type;
6200 return klass->ext->field_def_values [field_index].data;
6204 * mono_class_get_property_default_value:
6206 * Return the default value of the field as a pointer into the metadata blob.
6209 mono_class_get_property_default_value (MonoProperty *property, MonoTypeEnum *def_type)
6212 guint32 constant_cols [MONO_CONSTANT_SIZE];
6213 MonoClass *klass = property->parent;
6215 g_assert (property->attrs & PROPERTY_ATTRIBUTE_HAS_DEFAULT);
6216 /*We don't cache here because it is not used by C# so it's quite rare.*/
6218 cindex = mono_metadata_get_constant_index (klass->image, mono_class_get_property_token (property), 0);
6222 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6223 *def_type = constant_cols [MONO_CONSTANT_TYPE];
6224 return (gpointer)mono_metadata_blob_heap (klass->image, constant_cols [MONO_CONSTANT_VALUE]);
6228 mono_class_get_event_token (MonoEvent *event)
6230 MonoClass *klass = event->parent;
6235 for (i = 0; i < klass->ext->event.count; ++i) {
6236 if (&klass->ext->events [i] == event)
6237 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
6240 klass = klass->parent;
6243 g_assert_not_reached ();
6248 mono_class_get_property_from_name (MonoClass *klass, const char *name)
6252 gpointer iter = NULL;
6253 while ((p = mono_class_get_properties (klass, &iter))) {
6254 if (! strcmp (name, p->name))
6257 klass = klass->parent;
6263 mono_class_get_property_token (MonoProperty *prop)
6265 MonoClass *klass = prop->parent;
6269 gpointer iter = NULL;
6270 while ((p = mono_class_get_properties (klass, &iter))) {
6271 if (&klass->ext->properties [i] == prop)
6272 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
6276 klass = klass->parent;
6279 g_assert_not_reached ();
6284 mono_class_name_from_token (MonoImage *image, guint32 type_token)
6286 const char *name, *nspace;
6288 return g_strdup_printf ("DynamicType 0x%08x", type_token);
6290 switch (type_token & 0xff000000){
6291 case MONO_TOKEN_TYPE_DEF: {
6292 guint32 cols [MONO_TYPEDEF_SIZE];
6293 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
6294 guint tidx = mono_metadata_token_index (type_token);
6296 if (tidx > tt->rows)
6297 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6299 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
6300 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6301 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6302 if (strlen (nspace) == 0)
6303 return g_strdup_printf ("%s", name);
6305 return g_strdup_printf ("%s.%s", nspace, name);
6308 case MONO_TOKEN_TYPE_REF: {
6309 guint32 cols [MONO_TYPEREF_SIZE];
6310 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6311 guint tidx = mono_metadata_token_index (type_token);
6314 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6315 mono_metadata_decode_row (t, tidx-1, cols, MONO_TYPEREF_SIZE);
6316 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
6317 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
6318 if (strlen (nspace) == 0)
6319 return g_strdup_printf ("%s", name);
6321 return g_strdup_printf ("%s.%s", nspace, name);
6324 case MONO_TOKEN_TYPE_SPEC:
6325 return g_strdup_printf ("Typespec 0x%08x", type_token);
6327 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6332 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
6335 return g_strdup_printf ("DynamicAssembly %s", image->name);
6337 switch (type_token & 0xff000000){
6338 case MONO_TOKEN_TYPE_DEF:
6339 return mono_stringify_assembly_name (&image->assembly->aname);
6341 case MONO_TOKEN_TYPE_REF: {
6342 MonoAssemblyName aname;
6343 guint32 cols [MONO_TYPEREF_SIZE];
6344 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6345 guint32 idx = mono_metadata_token_index (type_token);
6348 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6350 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPEREF_SIZE);
6352 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
6353 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
6354 case MONO_RESOLTION_SCOPE_MODULE:
6356 return g_strdup ("");
6357 case MONO_RESOLTION_SCOPE_MODULEREF:
6359 return g_strdup ("");
6360 case MONO_RESOLTION_SCOPE_TYPEREF:
6362 return g_strdup ("");
6363 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
6364 mono_assembly_get_assemblyref (image, idx - 1, &aname);
6365 return mono_stringify_assembly_name (&aname);
6367 g_assert_not_reached ();
6371 case MONO_TOKEN_TYPE_SPEC:
6373 return g_strdup ("");
6375 g_assert_not_reached ();
6382 * mono_class_get_full:
6383 * @image: the image where the class resides
6384 * @type_token: the token for the class
6385 * @context: the generic context used to evaluate generic instantiations in
6387 * Returns: the MonoClass that represents @type_token in @image
6390 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6393 MonoClass *class = NULL;
6395 if (image->dynamic) {
6396 int table = mono_metadata_token_table (type_token);
6398 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
6399 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
6402 return mono_lookup_dynamic_token (image, type_token, context);
6405 switch (type_token & 0xff000000){
6406 case MONO_TOKEN_TYPE_DEF:
6407 class = mono_class_create_from_typedef (image, type_token);
6409 case MONO_TOKEN_TYPE_REF:
6410 class = mono_class_from_typeref (image, type_token);
6412 case MONO_TOKEN_TYPE_SPEC:
6413 class = mono_class_create_from_typespec (image, type_token, context, &error);
6414 if (!mono_error_ok (&error)) {
6415 /*FIXME don't swallow the error message*/
6416 mono_error_cleanup (&error);
6420 g_warning ("unknown token type %x", type_token & 0xff000000);
6421 g_assert_not_reached ();
6425 char *name = mono_class_name_from_token (image, type_token);
6426 char *assembly = mono_assembly_name_from_token (image, type_token);
6427 mono_loader_set_error_type_load (name, assembly);
6435 * mono_type_get_full:
6436 * @image: the image where the type resides
6437 * @type_token: the token for the type
6438 * @context: the generic context used to evaluate generic instantiations in
6440 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
6442 * Returns: the MonoType that represents @type_token in @image
6445 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6448 MonoType *type = NULL;
6449 gboolean inflated = FALSE;
6451 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
6453 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
6455 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
6456 MonoClass *class = mono_class_get_full (image, type_token, context);
6457 return class ? mono_class_get_type (class) : NULL;
6460 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated, &error);
6462 if (!mono_error_ok (&error)) {
6463 /*FIXME don't swalloc the error message.*/
6464 char *name = mono_class_name_from_token (image, type_token);
6465 char *assembly = mono_assembly_name_from_token (image, type_token);
6467 g_warning ("Error loading type %s from %s due to %s", name, assembly, mono_error_get_message (&error));
6469 mono_error_cleanup (&error);
6470 mono_loader_set_error_type_load (name, assembly);
6475 MonoType *tmp = type;
6476 type = mono_class_get_type (mono_class_from_mono_type (type));
6477 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
6478 * A MonoClass::byval_arg of a generic type definion has type CLASS.
6479 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
6481 * The long term solution is to chaise this places and make then set MonoType::type correctly.
6483 if (type->type != tmp->type)
6486 mono_metadata_free_type (tmp);
6493 mono_class_get (MonoImage *image, guint32 type_token)
6495 return mono_class_get_full (image, type_token, NULL);
6499 * mono_image_init_name_cache:
6501 * Initializes the class name cache stored in image->name_cache.
6503 * LOCKING: Acquires the corresponding image lock.
6506 mono_image_init_name_cache (MonoImage *image)
6508 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
6509 guint32 cols [MONO_TYPEDEF_SIZE];
6512 guint32 i, visib, nspace_index;
6513 GHashTable *name_cache2, *nspace_table;
6515 mono_image_lock (image);
6517 if (image->name_cache) {
6518 mono_image_unlock (image);
6522 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
6524 if (image->dynamic) {
6525 mono_image_unlock (image);
6529 /* Temporary hash table to avoid lookups in the nspace_table */
6530 name_cache2 = g_hash_table_new (NULL, NULL);
6532 for (i = 1; i <= t->rows; ++i) {
6533 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
6534 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
6536 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6537 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6539 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
6541 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6542 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6544 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
6545 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6546 if (!nspace_table) {
6547 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6548 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6549 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6552 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
6555 /* Load type names from EXPORTEDTYPES table */
6557 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
6558 guint32 cols [MONO_EXP_TYPE_SIZE];
6561 for (i = 0; i < t->rows; ++i) {
6562 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
6563 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
6564 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
6566 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
6567 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6568 if (!nspace_table) {
6569 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6570 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6571 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6574 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
6578 g_hash_table_destroy (name_cache2);
6579 mono_image_unlock (image);
6582 /*FIXME Only dynamic assemblies should allow this operation.*/
6584 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
6585 const char *name, guint32 index)
6587 GHashTable *nspace_table;
6588 GHashTable *name_cache;
6591 mono_image_lock (image);
6593 if (!image->name_cache)
6594 mono_image_init_name_cache (image);
6596 name_cache = image->name_cache;
6597 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
6598 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6599 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
6602 if ((old_index = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, (char*) name))))
6603 g_error ("overrwritting old token %x on image %s for type %s::%s", old_index, image->name, nspace, name);
6605 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
6607 mono_image_unlock (image);
6616 find_nocase (gpointer key, gpointer value, gpointer user_data)
6618 char *name = (char*)key;
6619 FindUserData *data = (FindUserData*)user_data;
6621 if (!data->value && (mono_utf8_strcasecmp (name, (char*)data->key) == 0))
6622 data->value = value;
6626 * mono_class_from_name_case:
6627 * @image: The MonoImage where the type is looked up in
6628 * @name_space: the type namespace
6629 * @name: the type short name.
6631 * Obtains a MonoClass with a given namespace and a given name which
6632 * is located in the given MonoImage. The namespace and name
6633 * lookups are case insensitive.
6636 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
6638 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
6639 guint32 cols [MONO_TYPEDEF_SIZE];
6644 if (image->dynamic) {
6646 FindUserData user_data;
6648 mono_image_lock (image);
6650 if (!image->name_cache)
6651 mono_image_init_name_cache (image);
6653 user_data.key = name_space;
6654 user_data.value = NULL;
6655 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
6657 if (user_data.value) {
6658 GHashTable *nspace_table = (GHashTable*)user_data.value;
6660 user_data.key = name;
6661 user_data.value = NULL;
6663 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
6665 if (user_data.value)
6666 token = GPOINTER_TO_UINT (user_data.value);
6669 mono_image_unlock (image);
6672 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
6678 /* add a cache if needed */
6679 for (i = 1; i <= t->rows; ++i) {
6680 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
6681 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
6683 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6684 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6686 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
6688 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6689 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6690 if (mono_utf8_strcasecmp (n, name) == 0 && mono_utf8_strcasecmp (nspace, name_space) == 0)
6691 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
6697 return_nested_in (MonoClass *class, char *nested)
6700 char *s = strchr (nested, '/');
6701 gpointer iter = NULL;
6708 while ((found = mono_class_get_nested_types (class, &iter))) {
6709 if (strcmp (found->name, nested) == 0) {
6711 return return_nested_in (found, s);
6719 search_modules (MonoImage *image, const char *name_space, const char *name)
6721 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
6722 MonoImage *file_image;
6727 * The EXPORTEDTYPES table only contains public types, so have to search the
6729 * Note: image->modules contains the contents of the MODULEREF table, while
6730 * the real module list is in the FILE table.
6732 for (i = 0; i < file_table->rows; i++) {
6733 guint32 cols [MONO_FILE_SIZE];
6734 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
6735 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
6738 file_image = mono_image_load_file_for_image (image, i + 1);
6740 class = mono_class_from_name (file_image, name_space, name);
6750 * mono_class_from_name:
6751 * @image: The MonoImage where the type is looked up in
6752 * @name_space: the type namespace
6753 * @name: the type short name.
6755 * Obtains a MonoClass with a given namespace and a given name which
6756 * is located in the given MonoImage.
6759 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
6761 GHashTable *nspace_table;
6762 MonoImage *loaded_image;
6769 if ((nested = strchr (name, '/'))) {
6770 int pos = nested - name;
6771 int len = strlen (name);
6774 memcpy (buf, name, len + 1);
6776 nested = buf + pos + 1;
6780 if (get_class_from_name) {
6781 gboolean res = get_class_from_name (image, name_space, name, &class);
6784 class = search_modules (image, name_space, name);
6786 return class ? return_nested_in (class, nested) : NULL;
6792 mono_image_lock (image);
6794 if (!image->name_cache)
6795 mono_image_init_name_cache (image);
6797 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
6800 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
6802 mono_image_unlock (image);
6804 if (!token && image->dynamic && image->modules) {
6805 /* Search modules as well */
6806 for (i = 0; i < image->module_count; ++i) {
6807 MonoImage *module = image->modules [i];
6809 class = mono_class_from_name (module, name_space, name);
6816 class = search_modules (image, name_space, name);
6824 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
6825 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
6826 guint32 cols [MONO_EXP_TYPE_SIZE];
6829 idx = mono_metadata_token_index (token);
6831 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
6833 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
6834 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
6835 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
6838 class = mono_class_from_name (loaded_image, name_space, name);
6840 return return_nested_in (class, nested);
6842 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
6843 guint32 assembly_idx;
6845 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
6847 mono_assembly_load_reference (image, assembly_idx - 1);
6848 g_assert (image->references [assembly_idx - 1]);
6849 if (image->references [assembly_idx - 1] == (gpointer)-1)
6852 /* FIXME: Cycle detection */
6853 return mono_class_from_name (image->references [assembly_idx - 1]->image, name_space, name);
6855 g_error ("not yet implemented");
6859 token = MONO_TOKEN_TYPE_DEF | token;
6861 class = mono_class_get (image, token);
6863 return return_nested_in (class, nested);
6867 /*FIXME test for interfaces with variant generic arguments*/
6869 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
6870 gboolean check_interfaces)
6872 g_assert (klassc->idepth > 0);
6873 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
6874 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
6876 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
6879 for (i = 0; i < klass->interface_count; i ++) {
6880 MonoClass *ic = klass->interfaces [i];
6885 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
6890 * MS.NET thinks interfaces are a subclass of Object, so we think it as
6893 if (klassc == mono_defaults.object_class)
6900 mono_class_has_variant_generic_params (MonoClass *klass)
6903 MonoGenericContainer *container;
6905 if (!klass->generic_class)
6908 container = klass->generic_class->container_class->generic_container;
6910 for (i = 0; i < container->type_argc; ++i)
6911 if (mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
6918 * @container the generic container from the GTD
6919 * @klass: the class to be assigned to
6920 * @oklass: the source class
6922 * Both klass and oklass must be instances of the same generic interface.
6923 * Return true if @klass can be assigned to a @klass variable
6926 mono_class_is_variant_compatible (MonoClass *klass, MonoClass *oklass)
6929 MonoType **klass_argv, **oklass_argv;
6930 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
6931 MonoGenericContainer *container = klass_gtd->generic_container;
6933 /*Viable candidates are instances of the same generic interface*/
6934 if (mono_class_get_generic_type_definition (oklass) != klass_gtd)
6937 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
6938 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
6940 for (j = 0; j < container->type_argc; ++j) {
6941 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
6942 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
6944 if (param1_class->valuetype != param2_class->valuetype)
6948 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
6949 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
6951 if (param1_class != param2_class) {
6952 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
6953 if (!mono_class_is_assignable_from (param1_class, param2_class))
6955 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
6956 if (!mono_class_is_assignable_from (param2_class, param1_class))
6966 * mono_class_is_assignable_from:
6967 * @klass: the class to be assigned to
6968 * @oklass: the source class
6970 * Return: true if an instance of object oklass can be assigned to an
6971 * instance of object @klass
6974 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
6977 mono_class_init (klass);
6979 if (!oklass->inited)
6980 mono_class_init (oklass);
6982 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
6983 return klass == oklass;
6985 if (MONO_CLASS_IS_INTERFACE (klass)) {
6986 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
6989 /* interface_offsets might not be set for dynamic classes */
6990 if (oklass->ref_info_handle && !oklass->interface_bitmap)
6992 * oklass might be a generic type parameter but they have
6993 * interface_offsets set.
6995 return mono_reflection_call_is_assignable_to (oklass, klass);
6996 if (!oklass->interface_bitmap)
6997 /* Happens with generic instances of not-yet created dynamic types */
6999 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
7002 if (mono_class_has_variant_generic_params (klass)) {
7005 mono_class_setup_interfaces (oklass, &error);
7006 if (!mono_error_ok (&error)) {
7007 mono_error_cleanup (&error);
7011 /*klass is a generic variant interface, We need to extract from oklass a list of ifaces which are viable candidates.*/
7012 for (i = 0; i < oklass->interface_offsets_count; ++i) {
7013 MonoClass *iface = oklass->interfaces_packed [i];
7015 if (mono_class_is_variant_compatible (klass, iface))
7020 } else if (klass->delegate) {
7021 if (mono_class_has_variant_generic_params (klass) && mono_class_is_variant_compatible (klass, oklass))
7023 }else if (klass->rank) {
7024 MonoClass *eclass, *eoclass;
7026 if (oklass->rank != klass->rank)
7029 /* vectors vs. one dimensional arrays */
7030 if (oklass->byval_arg.type != klass->byval_arg.type)
7033 eclass = klass->cast_class;
7034 eoclass = oklass->cast_class;
7037 * a is b does not imply a[] is b[] when a is a valuetype, and
7038 * b is a reference type.
7041 if (eoclass->valuetype) {
7042 if ((eclass == mono_defaults.enum_class) ||
7043 (eclass == mono_defaults.enum_class->parent) ||
7044 (eclass == mono_defaults.object_class))
7048 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7049 } else if (mono_class_is_nullable (klass)) {
7050 if (mono_class_is_nullable (oklass))
7051 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7053 return mono_class_is_assignable_from (klass->cast_class, oklass);
7054 } else if (klass == mono_defaults.object_class)
7057 return mono_class_has_parent (oklass, klass);
7060 /*Check if @oklass is variant compatible with @klass.*/
7062 mono_class_is_variant_compatible_slow (MonoClass *klass, MonoClass *oklass)
7065 MonoType **klass_argv, **oklass_argv;
7066 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7067 MonoGenericContainer *container = klass_gtd->generic_container;
7069 /*Viable candidates are instances of the same generic interface*/
7070 if (mono_class_get_generic_type_definition (oklass) != klass_gtd)
7073 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7074 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7076 for (j = 0; j < container->type_argc; ++j) {
7077 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7078 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7080 if (param1_class->valuetype != param2_class->valuetype)
7084 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7085 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7087 if (param1_class != param2_class) {
7088 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7089 if (!mono_class_is_assignable_from_slow (param1_class, param2_class))
7091 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7092 if (!mono_class_is_assignable_from_slow (param2_class, param1_class))
7100 /*Check if @candidate implements the interface @target*/
7102 mono_class_implement_interface_slow (MonoClass *target, MonoClass *candidate)
7106 gboolean is_variant = mono_class_has_variant_generic_params (target);
7108 if (is_variant && MONO_CLASS_IS_INTERFACE (candidate)) {
7109 if (mono_class_is_variant_compatible_slow (target, candidate))
7114 if (candidate == target)
7117 /*A TypeBuilder can have more interfaces on tb->interfaces than on candidate->interfaces*/
7118 if (candidate->image->dynamic && !candidate->wastypebuilder) {
7119 MonoReflectionTypeBuilder *tb = mono_class_get_ref_info (candidate);
7121 if (tb && tb->interfaces) {
7122 for (j = mono_array_length (tb->interfaces) - 1; j >= 0; --j) {
7123 MonoReflectionType *iface = mono_array_get (tb->interfaces, MonoReflectionType*, j);
7124 MonoClass *iface_class = mono_class_from_mono_type (iface->type);
7125 if (iface_class == target)
7127 if (is_variant && mono_class_is_variant_compatible_slow (target, iface_class))
7129 if (mono_class_implement_interface_slow (target, iface_class))
7134 /*setup_interfaces don't mono_class_init anything*/
7135 mono_class_setup_interfaces (candidate, &error);
7136 if (!mono_error_ok (&error)) {
7137 mono_error_cleanup (&error);
7141 for (i = 0; i < candidate->interface_count; ++i) {
7142 if (candidate->interfaces [i] == target)
7145 if (is_variant && mono_class_is_variant_compatible_slow (target, candidate->interfaces [i]))
7148 if (mono_class_implement_interface_slow (target, candidate->interfaces [i]))
7152 candidate = candidate->parent;
7153 } while (candidate);
7159 * Check if @oklass can be assigned to @klass.
7160 * This function does the same as mono_class_is_assignable_from but is safe to be used from mono_class_init context.
7163 mono_class_is_assignable_from_slow (MonoClass *target, MonoClass *candidate)
7165 if (candidate == target)
7167 if (target == mono_defaults.object_class)
7170 /*setup_supertypes don't mono_class_init anything */
7171 mono_class_setup_supertypes (candidate);
7172 mono_class_setup_supertypes (target);
7174 if (mono_class_has_parent (candidate, target))
7177 /*If target is not an interface there is no need to check them.*/
7178 if (MONO_CLASS_IS_INTERFACE (target))
7179 return mono_class_implement_interface_slow (target, candidate);
7181 if (target->delegate && mono_class_has_variant_generic_params (target))
7182 return mono_class_is_variant_compatible (target, candidate);
7184 /*FIXME properly handle nullables and arrays */
7190 * mono_class_get_cctor:
7191 * @klass: A MonoClass pointer
7193 * Returns: the static constructor of @klass if it exists, NULL otherwise.
7196 mono_class_get_cctor (MonoClass *klass)
7198 MonoCachedClassInfo cached_info;
7200 if (klass->image->dynamic) {
7202 * has_cctor is not set for these classes because mono_class_init () is
7205 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7208 if (!klass->has_cctor)
7211 if (mono_class_get_cached_class_info (klass, &cached_info))
7212 return mono_get_method (klass->image, cached_info.cctor_token, klass);
7214 if (klass->generic_class && !klass->methods)
7215 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
7217 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7221 * mono_class_get_finalizer:
7222 * @klass: The MonoClass pointer
7224 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
7227 mono_class_get_finalizer (MonoClass *klass)
7229 MonoCachedClassInfo cached_info;
7232 mono_class_init (klass);
7233 if (!klass->has_finalize)
7236 if (mono_class_get_cached_class_info (klass, &cached_info))
7237 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
7239 mono_class_setup_vtable (klass);
7240 return klass->vtable [finalize_slot];
7245 * mono_class_needs_cctor_run:
7246 * @klass: the MonoClass pointer
7247 * @caller: a MonoMethod describing the caller
7249 * Determines whenever the class has a static constructor and whenever it
7250 * needs to be called when executing CALLER.
7253 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
7257 method = mono_class_get_cctor (klass);
7259 return (method == caller) ? FALSE : TRUE;
7265 * mono_class_array_element_size:
7268 * Returns: the number of bytes an element of type @klass
7269 * uses when stored into an array.
7272 mono_class_array_element_size (MonoClass *klass)
7274 MonoType *type = &klass->byval_arg;
7277 switch (type->type) {
7280 case MONO_TYPE_BOOLEAN:
7284 case MONO_TYPE_CHAR:
7293 case MONO_TYPE_CLASS:
7294 case MONO_TYPE_STRING:
7295 case MONO_TYPE_OBJECT:
7296 case MONO_TYPE_SZARRAY:
7297 case MONO_TYPE_ARRAY:
7299 case MONO_TYPE_MVAR:
7300 return sizeof (gpointer);
7305 case MONO_TYPE_VALUETYPE:
7306 if (type->data.klass->enumtype) {
7307 type = mono_class_enum_basetype (type->data.klass);
7308 klass = klass->element_class;
7311 return mono_class_instance_size (klass) - sizeof (MonoObject);
7312 case MONO_TYPE_GENERICINST:
7313 type = &type->data.generic_class->container_class->byval_arg;
7316 case MONO_TYPE_VOID:
7320 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
7326 * mono_array_element_size:
7327 * @ac: pointer to a #MonoArrayClass
7329 * Returns: the size of single array element.
7332 mono_array_element_size (MonoClass *ac)
7334 g_assert (ac->rank);
7335 return ac->sizes.element_size;
7339 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
7340 MonoGenericContext *context)
7342 if (image->dynamic) {
7343 MonoClass *tmp_handle_class;
7344 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
7346 g_assert (tmp_handle_class);
7348 *handle_class = tmp_handle_class;
7350 if (tmp_handle_class == mono_defaults.typehandle_class)
7351 return &((MonoClass*)obj)->byval_arg;
7356 switch (token & 0xff000000) {
7357 case MONO_TOKEN_TYPE_DEF:
7358 case MONO_TOKEN_TYPE_REF:
7359 case MONO_TOKEN_TYPE_SPEC: {
7362 *handle_class = mono_defaults.typehandle_class;
7363 type = mono_type_get_full (image, token, context);
7366 mono_class_init (mono_class_from_mono_type (type));
7367 /* We return a MonoType* as handle */
7370 case MONO_TOKEN_FIELD_DEF: {
7372 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
7376 *handle_class = mono_defaults.fieldhandle_class;
7377 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
7380 mono_class_init (class);
7381 return mono_class_get_field (class, token);
7383 case MONO_TOKEN_METHOD_DEF:
7384 case MONO_TOKEN_METHOD_SPEC: {
7386 meth = mono_get_method_full (image, token, NULL, context);
7388 *handle_class = mono_defaults.methodhandle_class;
7391 case MONO_TOKEN_MEMBER_REF: {
7392 guint32 cols [MONO_MEMBERREF_SIZE];
7394 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
7395 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
7396 mono_metadata_decode_blob_size (sig, &sig);
7397 if (*sig == 0x6) { /* it's a field */
7399 MonoClassField *field;
7400 field = mono_field_from_token (image, token, &klass, context);
7402 *handle_class = mono_defaults.fieldhandle_class;
7406 meth = mono_get_method_full (image, token, NULL, context);
7408 *handle_class = mono_defaults.methodhandle_class;
7413 g_warning ("Unknown token 0x%08x in ldtoken", token);
7420 * This function might need to call runtime functions so it can't be part
7421 * of the metadata library.
7423 static MonoLookupDynamicToken lookup_dynamic = NULL;
7426 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
7428 lookup_dynamic = func;
7432 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
7434 MonoClass *handle_class;
7436 return lookup_dynamic (image, token, TRUE, &handle_class, context);
7440 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
7442 return lookup_dynamic (image, token, valid_token, handle_class, context);
7445 static MonoGetCachedClassInfo get_cached_class_info = NULL;
7448 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
7450 get_cached_class_info = func;
7454 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
7456 if (!get_cached_class_info)
7459 return get_cached_class_info (klass, res);
7463 mono_install_get_class_from_name (MonoGetClassFromName func)
7465 get_class_from_name = func;
7469 mono_class_get_image (MonoClass *klass)
7471 return klass->image;
7475 * mono_class_get_element_class:
7476 * @klass: the MonoClass to act on
7478 * Returns: the element class of an array or an enumeration.
7481 mono_class_get_element_class (MonoClass *klass)
7483 return klass->element_class;
7487 * mono_class_is_valuetype:
7488 * @klass: the MonoClass to act on
7490 * Returns: true if the MonoClass represents a ValueType.
7493 mono_class_is_valuetype (MonoClass *klass)
7495 return klass->valuetype;
7499 * mono_class_is_enum:
7500 * @klass: the MonoClass to act on
7502 * Returns: true if the MonoClass represents an enumeration.
7505 mono_class_is_enum (MonoClass *klass)
7507 return klass->enumtype;
7511 * mono_class_enum_basetype:
7512 * @klass: the MonoClass to act on
7514 * Returns: the underlying type representation for an enumeration.
7517 mono_class_enum_basetype (MonoClass *klass)
7519 if (klass->element_class == klass)
7520 /* SRE or broken types */
7523 return &klass->element_class->byval_arg;
7527 * mono_class_get_parent
7528 * @klass: the MonoClass to act on
7530 * Returns: the parent class for this class.
7533 mono_class_get_parent (MonoClass *klass)
7535 return klass->parent;
7539 * mono_class_get_nesting_type;
7540 * @klass: the MonoClass to act on
7542 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
7545 mono_class_get_nesting_type (MonoClass *klass)
7547 return klass->nested_in;
7551 * mono_class_get_rank:
7552 * @klass: the MonoClass to act on
7554 * Returns: the rank for the array (the number of dimensions).
7557 mono_class_get_rank (MonoClass *klass)
7563 * mono_class_get_flags:
7564 * @klass: the MonoClass to act on
7566 * The type flags from the TypeDef table from the metadata.
7567 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
7570 * Returns: the flags from the TypeDef table.
7573 mono_class_get_flags (MonoClass *klass)
7575 return klass->flags;
7579 * mono_class_get_name
7580 * @klass: the MonoClass to act on
7582 * Returns: the name of the class.
7585 mono_class_get_name (MonoClass *klass)
7591 * mono_class_get_namespace:
7592 * @klass: the MonoClass to act on
7594 * Returns: the namespace of the class.
7597 mono_class_get_namespace (MonoClass *klass)
7599 return klass->name_space;
7603 * mono_class_get_type:
7604 * @klass: the MonoClass to act on
7606 * This method returns the internal Type representation for the class.
7608 * Returns: the MonoType from the class.
7611 mono_class_get_type (MonoClass *klass)
7613 return &klass->byval_arg;
7617 * mono_class_get_type_token
7618 * @klass: the MonoClass to act on
7620 * This method returns type token for the class.
7622 * Returns: the type token for the class.
7625 mono_class_get_type_token (MonoClass *klass)
7627 return klass->type_token;
7631 * mono_class_get_byref_type:
7632 * @klass: the MonoClass to act on
7637 mono_class_get_byref_type (MonoClass *klass)
7639 return &klass->this_arg;
7643 * mono_class_num_fields:
7644 * @klass: the MonoClass to act on
7646 * Returns: the number of static and instance fields in the class.
7649 mono_class_num_fields (MonoClass *klass)
7651 return klass->field.count;
7655 * mono_class_num_methods:
7656 * @klass: the MonoClass to act on
7658 * Returns: the number of methods in the class.
7661 mono_class_num_methods (MonoClass *klass)
7663 return klass->method.count;
7667 * mono_class_num_properties
7668 * @klass: the MonoClass to act on
7670 * Returns: the number of properties in the class.
7673 mono_class_num_properties (MonoClass *klass)
7675 mono_class_setup_properties (klass);
7677 return klass->ext->property.count;
7681 * mono_class_num_events:
7682 * @klass: the MonoClass to act on
7684 * Returns: the number of events in the class.
7687 mono_class_num_events (MonoClass *klass)
7689 mono_class_setup_events (klass);
7691 return klass->ext->event.count;
7695 * mono_class_get_fields:
7696 * @klass: the MonoClass to act on
7698 * This routine is an iterator routine for retrieving the fields in a class.
7700 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7701 * iterate over all of the elements. When no more values are
7702 * available, the return value is NULL.
7704 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
7707 mono_class_get_fields (MonoClass* klass, gpointer *iter)
7709 MonoClassField* field;
7713 mono_class_setup_fields_locking (klass);
7714 if (klass->exception_type)
7716 /* start from the first */
7717 if (klass->field.count) {
7718 return *iter = &klass->fields [0];
7726 if (field < &klass->fields [klass->field.count]) {
7727 return *iter = field;
7733 * mono_class_get_methods
7734 * @klass: the MonoClass to act on
7736 * This routine is an iterator routine for retrieving the fields in a class.
7738 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7739 * iterate over all of the elements. When no more values are
7740 * available, the return value is NULL.
7742 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
7745 mono_class_get_methods (MonoClass* klass, gpointer *iter)
7747 MonoMethod** method;
7751 mono_class_init (klass);
7753 mono_class_setup_methods (klass);
7756 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
7757 * FIXME we should better report this error to the caller
7759 if (!klass->methods)
7761 /* start from the first */
7762 if (klass->method.count) {
7763 *iter = &klass->methods [0];
7764 return klass->methods [0];
7772 if (method < &klass->methods [klass->method.count]) {
7780 * mono_class_get_virtual_methods:
7782 * Iterate over the virtual methods of KLASS.
7784 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
7787 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
7789 MonoMethod** method;
7792 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
7794 mono_class_setup_methods (klass);
7796 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
7797 * FIXME we should better report this error to the caller
7799 if (!klass->methods)
7801 /* start from the first */
7802 method = &klass->methods [0];
7807 while (method < &klass->methods [klass->method.count]) {
7808 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
7812 if (method < &klass->methods [klass->method.count]) {
7819 /* Search directly in metadata to avoid calling setup_methods () */
7820 MonoMethod *res = NULL;
7826 start_index = GPOINTER_TO_UINT (*iter);
7829 for (i = start_index; i < klass->method.count; ++i) {
7832 /* class->method.first points into the methodptr table */
7833 flags = mono_metadata_decode_table_row_col (klass->image, MONO_TABLE_METHOD, klass->method.first + i, MONO_METHOD_FLAGS);
7835 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
7839 if (i < klass->method.count) {
7840 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
7841 /* Add 1 here so the if (*iter) check fails */
7842 *iter = GUINT_TO_POINTER (i + 1);
7851 * mono_class_get_properties:
7852 * @klass: the MonoClass to act on
7854 * This routine is an iterator routine for retrieving the properties in a class.
7856 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7857 * iterate over all of the elements. When no more values are
7858 * available, the return value is NULL.
7860 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
7863 mono_class_get_properties (MonoClass* klass, gpointer *iter)
7865 MonoProperty* property;
7869 mono_class_init (klass);
7871 mono_class_setup_properties (klass);
7872 /* start from the first */
7873 if (klass->ext->property.count) {
7874 return *iter = &klass->ext->properties [0];
7882 if (property < &klass->ext->properties [klass->ext->property.count]) {
7883 return *iter = property;
7889 * mono_class_get_events:
7890 * @klass: the MonoClass to act on
7892 * This routine is an iterator routine for retrieving the properties in a class.
7894 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7895 * iterate over all of the elements. When no more values are
7896 * available, the return value is NULL.
7898 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
7901 mono_class_get_events (MonoClass* klass, gpointer *iter)
7907 mono_class_init (klass);
7909 mono_class_setup_events (klass);
7910 /* start from the first */
7911 if (klass->ext->event.count) {
7912 return *iter = &klass->ext->events [0];
7920 if (event < &klass->ext->events [klass->ext->event.count]) {
7921 return *iter = event;
7927 * mono_class_get_interfaces
7928 * @klass: the MonoClass to act on
7930 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
7932 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7933 * iterate over all of the elements. When no more values are
7934 * available, the return value is NULL.
7936 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
7939 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
7947 mono_class_init (klass);
7948 if (!klass->interfaces_inited) {
7949 mono_class_setup_interfaces (klass, &error);
7950 if (!mono_error_ok (&error)) {
7951 mono_error_cleanup (&error);
7955 /* start from the first */
7956 if (klass->interface_count) {
7957 *iter = &klass->interfaces [0];
7958 return klass->interfaces [0];
7966 if (iface < &klass->interfaces [klass->interface_count]) {
7974 * mono_class_get_nested_types
7975 * @klass: the MonoClass to act on
7977 * This routine is an iterator routine for retrieving the nested types of a class.
7978 * This works only if @klass is non-generic, or a generic type definition.
7980 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7981 * iterate over all of the elements. When no more values are
7982 * available, the return value is NULL.
7984 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
7987 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
7995 mono_class_init (klass);
7996 if (!klass->nested_classes_inited) {
7997 if (!klass->type_token)
7998 klass->nested_classes_inited = TRUE;
7999 mono_loader_lock ();
8000 if (!klass->nested_classes_inited) {
8001 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
8004 guint32 cols [MONO_NESTED_CLASS_SIZE];
8005 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
8006 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
8009 mono_class_alloc_ext (klass);
8010 klass->ext->nested_classes = g_list_prepend_image (klass->image, klass->ext->nested_classes, nclass);
8012 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8015 mono_memory_barrier ();
8016 klass->nested_classes_inited = TRUE;
8017 mono_loader_unlock ();
8021 /* start from the first */
8022 if (klass->ext && klass->ext->nested_classes) {
8023 *iter = klass->ext->nested_classes;
8024 return klass->ext->nested_classes->data;
8026 /* no nested types */
8040 * mono_field_get_name:
8041 * @field: the MonoClassField to act on
8043 * Returns: the name of the field.
8046 mono_field_get_name (MonoClassField *field)
8052 * mono_field_get_type:
8053 * @field: the MonoClassField to act on
8055 * Returns: MonoType of the field.
8058 mono_field_get_type (MonoClassField *field)
8064 * mono_field_get_parent:
8065 * @field: the MonoClassField to act on
8067 * Returns: MonoClass where the field was defined.
8070 mono_field_get_parent (MonoClassField *field)
8072 return field->parent;
8076 * mono_field_get_flags;
8077 * @field: the MonoClassField to act on
8079 * The metadata flags for a field are encoded using the
8080 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8082 * Returns: the flags for the field.
8085 mono_field_get_flags (MonoClassField *field)
8087 return field->type->attrs;
8091 * mono_field_get_offset;
8092 * @field: the MonoClassField to act on
8094 * Returns: the field offset.
8097 mono_field_get_offset (MonoClassField *field)
8099 return field->offset;
8103 mono_field_get_rva (MonoClassField *field)
8107 MonoClass *klass = field->parent;
8109 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
8111 if (!klass->ext || !klass->ext->field_def_values) {
8112 mono_loader_lock ();
8113 mono_class_alloc_ext (klass);
8114 if (!klass->ext->field_def_values)
8115 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
8116 mono_loader_unlock ();
8119 field_index = mono_field_get_index (field);
8121 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
8122 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
8124 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
8125 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
8128 return klass->ext->field_def_values [field_index].data;
8132 * mono_field_get_data;
8133 * @field: the MonoClassField to act on
8135 * Returns: pointer to the metadata constant value or to the field
8136 * data if it has an RVA flag.
8139 mono_field_get_data (MonoClassField *field)
8141 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
8142 MonoTypeEnum def_type;
8144 return mono_class_get_field_default_value (field, &def_type);
8145 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
8146 return mono_field_get_rva (field);
8153 * mono_property_get_name:
8154 * @prop: the MonoProperty to act on
8156 * Returns: the name of the property
8159 mono_property_get_name (MonoProperty *prop)
8165 * mono_property_get_set_method
8166 * @prop: the MonoProperty to act on.
8168 * Returns: the setter method of the property (A MonoMethod)
8171 mono_property_get_set_method (MonoProperty *prop)
8177 * mono_property_get_get_method
8178 * @prop: the MonoProperty to act on.
8180 * Returns: the setter method of the property (A MonoMethod)
8183 mono_property_get_get_method (MonoProperty *prop)
8189 * mono_property_get_parent:
8190 * @prop: the MonoProperty to act on.
8192 * Returns: the MonoClass where the property was defined.
8195 mono_property_get_parent (MonoProperty *prop)
8197 return prop->parent;
8201 * mono_property_get_flags:
8202 * @prop: the MonoProperty to act on.
8204 * The metadata flags for a property are encoded using the
8205 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8207 * Returns: the flags for the property.
8210 mono_property_get_flags (MonoProperty *prop)
8216 * mono_event_get_name:
8217 * @event: the MonoEvent to act on
8219 * Returns: the name of the event.
8222 mono_event_get_name (MonoEvent *event)
8228 * mono_event_get_add_method:
8229 * @event: The MonoEvent to act on.
8231 * Returns: the @add' method for the event (a MonoMethod).
8234 mono_event_get_add_method (MonoEvent *event)
8240 * mono_event_get_remove_method:
8241 * @event: The MonoEvent to act on.
8243 * Returns: the @remove method for the event (a MonoMethod).
8246 mono_event_get_remove_method (MonoEvent *event)
8248 return event->remove;
8252 * mono_event_get_raise_method:
8253 * @event: The MonoEvent to act on.
8255 * Returns: the @raise method for the event (a MonoMethod).
8258 mono_event_get_raise_method (MonoEvent *event)
8260 return event->raise;
8264 * mono_event_get_parent:
8265 * @event: the MonoEvent to act on.
8267 * Returns: the MonoClass where the event is defined.
8270 mono_event_get_parent (MonoEvent *event)
8272 return event->parent;
8276 * mono_event_get_flags
8277 * @event: the MonoEvent to act on.
8279 * The metadata flags for an event are encoded using the
8280 * EVENT_* constants. See the tabledefs.h file for details.
8282 * Returns: the flags for the event.
8285 mono_event_get_flags (MonoEvent *event)
8287 return event->attrs;
8291 * mono_class_get_method_from_name:
8292 * @klass: where to look for the method
8293 * @name_space: name of the method
8294 * @param_count: number of parameters. -1 for any number.
8296 * Obtains a MonoMethod with a given name and number of parameters.
8297 * It only works if there are no multiple signatures for any given method name.
8300 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
8302 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
8306 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
8308 MonoMethod *res = NULL;
8311 /* Search directly in the metadata to avoid calling setup_methods () */
8312 for (i = 0; i < klass->method.count; ++i) {
8313 guint32 cols [MONO_METHOD_SIZE];
8316 /* class->method.first points into the methodptr table */
8317 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
8319 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
8320 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
8321 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
8332 * mono_class_get_method_from_name_flags:
8333 * @klass: where to look for the method
8334 * @name_space: name of the method
8335 * @param_count: number of parameters. -1 for any number.
8336 * @flags: flags which must be set in the method
8338 * Obtains a MonoMethod with a given name and number of parameters.
8339 * It only works if there are no multiple signatures for any given method name.
8342 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
8344 MonoMethod *res = NULL;
8347 mono_class_init (klass);
8349 if (klass->generic_class && !klass->methods) {
8350 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
8352 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
8356 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
8357 mono_class_setup_methods (klass);
8359 We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8360 See mono/tests/array_load_exception.il
8361 FIXME we should better report this error to the caller
8363 if (!klass->methods)
8365 for (i = 0; i < klass->method.count; ++i) {
8366 MonoMethod *method = klass->methods [i];
8368 if (method->name[0] == name [0] &&
8369 !strcmp (name, method->name) &&
8370 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
8371 ((method->flags & flags) == flags)) {
8378 res = find_method_in_metadata (klass, name, param_count, flags);
8385 * mono_class_set_failure:
8386 * @klass: class in which the failure was detected
8387 * @ex_type: the kind of exception/error to be thrown (later)
8388 * @ex_data: exception data (specific to each type of exception/error)
8390 * Keep a detected failure informations in the class for later processing.
8391 * Note that only the first failure is kept.
8393 * LOCKING: Acquires the loader lock.
8396 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
8398 if (klass->exception_type)
8401 mono_loader_lock ();
8402 klass->exception_type = ex_type;
8404 mono_image_property_insert (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
8405 mono_loader_unlock ();
8411 * mono_class_get_exception_data:
8413 * Return the exception_data property of KLASS.
8415 * LOCKING: Acquires the loader lock.
8418 mono_class_get_exception_data (MonoClass *klass)
8420 return mono_image_property_lookup (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
8424 * mono_classes_init:
8426 * Initialize the resources used by this module.
8429 mono_classes_init (void)
8431 mono_counters_register ("Inflated methods size",
8432 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
8433 mono_counters_register ("Inflated classes",
8434 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
8435 mono_counters_register ("Inflated classes size",
8436 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
8437 mono_counters_register ("MonoClass size",
8438 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
8439 mono_counters_register ("MonoClassExt size",
8440 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
8444 * mono_classes_cleanup:
8446 * Free the resources used by this module.
8449 mono_classes_cleanup (void)
8451 if (global_interface_bitset)
8452 mono_bitset_free (global_interface_bitset);
8456 * mono_class_get_exception_for_failure:
8457 * @klass: class in which the failure was detected
8459 * Return a constructed MonoException than the caller can then throw
8460 * using mono_raise_exception - or NULL if no failure is present (or
8461 * doesn't result in an exception).
8464 mono_class_get_exception_for_failure (MonoClass *klass)
8466 gpointer exception_data = mono_class_get_exception_data (klass);
8468 switch (klass->exception_type) {
8469 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
8470 MonoDomain *domain = mono_domain_get ();
8471 MonoSecurityManager* secman = mono_security_manager_get_methods ();
8472 MonoMethod *method = exception_data;
8473 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
8474 MonoObject *exc = NULL;
8478 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
8479 args [2] = mono_type_get_object (domain, &klass->byval_arg);
8480 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
8482 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
8483 return (MonoException*) exc;
8485 case MONO_EXCEPTION_TYPE_LOAD: {
8488 char *str = mono_type_get_full_name (klass);
8489 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
8490 name = mono_string_new (mono_domain_get (), str);
8492 ex = mono_get_exception_type_load (name, astr);
8496 case MONO_EXCEPTION_MISSING_METHOD: {
8497 char *class_name = exception_data;
8498 char *assembly_name = class_name + strlen (class_name) + 1;
8500 return mono_get_exception_missing_method (class_name, assembly_name);
8502 case MONO_EXCEPTION_MISSING_FIELD: {
8503 char *class_name = exception_data;
8504 char *member_name = class_name + strlen (class_name) + 1;
8506 return mono_get_exception_missing_field (class_name, member_name);
8508 case MONO_EXCEPTION_FILE_NOT_FOUND: {
8509 char *msg_format = exception_data;
8510 char *assembly_name = msg_format + strlen (msg_format) + 1;
8511 char *msg = g_strdup_printf (msg_format, assembly_name);
8514 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
8520 case MONO_EXCEPTION_BAD_IMAGE: {
8521 return mono_get_exception_bad_image_format (exception_data);
8524 MonoLoaderError *error;
8527 error = mono_loader_get_last_error ();
8529 ex = mono_loader_error_prepare_exception (error);
8533 /* TODO - handle other class related failures */
8540 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
8542 outer_klass = mono_class_get_generic_type_definition (outer_klass);
8543 inner_klass = mono_class_get_generic_type_definition (inner_klass);
8545 if (outer_klass == inner_klass)
8547 inner_klass = inner_klass->nested_in;
8548 } while (inner_klass);
8553 mono_class_get_generic_type_definition (MonoClass *klass)
8555 return klass->generic_class ? klass->generic_class->container_class : klass;
8559 * Check if @klass is a subtype of @parent ignoring generic instantiations.
8561 * Generic instantiations are ignored for all super types of @klass.
8563 * Visibility checks ignoring generic instantiations.
8566 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
8569 klass = mono_class_get_generic_type_definition (klass);
8570 parent = mono_class_get_generic_type_definition (parent);
8572 for (i = 0; i < klass->idepth; ++i) {
8573 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
8579 * Subtype can only access parent members with family protection if the site object
8580 * is subclass of Subtype. For example:
8581 * class A { protected int x; }
8583 * void valid_access () {
8587 * void invalid_access () {
8594 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
8596 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
8599 if (context_klass == NULL)
8601 /*if access_klass is not member_klass context_klass must be type compat*/
8602 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
8608 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
8611 if (accessing == accessed)
8613 if (!accessed || !accessing)
8616 /* extra safety under CoreCLR - the runtime does not verify the strongname signatures
8617 * anywhere so untrusted friends are not safe to access platform's code internals */
8618 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR) {
8619 if (!mono_security_core_clr_can_access_internals (accessing->image, accessed->image))
8623 mono_assembly_load_friends (accessed);
8624 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
8625 MonoAssemblyName *friend = tmp->data;
8626 /* Be conservative with checks */
8629 if (strcmp (accessing->aname.name, friend->name))
8631 if (friend->public_key_token [0]) {
8632 if (!accessing->aname.public_key_token [0])
8634 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
8643 * If klass is a generic type or if it is derived from a generic type, return the
8644 * MonoClass of the generic definition
8645 * Returns NULL if not found
8648 get_generic_definition_class (MonoClass *klass)
8651 if (klass->generic_class && klass->generic_class->container_class)
8652 return klass->generic_class->container_class;
8653 klass = klass->parent;
8659 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
8662 for (i = 0; i < ginst->type_argc; ++i) {
8663 MonoType *type = ginst->type_argv[i];
8664 switch (type->type) {
8665 case MONO_TYPE_SZARRAY:
8666 if (!can_access_type (access_klass, type->data.klass))
8669 case MONO_TYPE_ARRAY:
8670 if (!can_access_type (access_klass, type->data.array->eklass))
8674 if (!can_access_type (access_klass, mono_class_from_mono_type (type->data.type)))
8677 case MONO_TYPE_CLASS:
8678 case MONO_TYPE_VALUETYPE:
8679 case MONO_TYPE_GENERICINST:
8680 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
8688 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
8692 if (access_klass->element_class && !access_klass->enumtype)
8693 access_klass = access_klass->element_class;
8695 if (member_klass->element_class && !member_klass->enumtype)
8696 member_klass = member_klass->element_class;
8698 access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
8700 if (member_klass->byval_arg.type == MONO_TYPE_VAR || member_klass->byval_arg.type == MONO_TYPE_MVAR)
8703 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
8706 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
8709 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
8712 /*Non nested type with nested visibility. We just fail it.*/
8713 if (access_level >= TYPE_ATTRIBUTE_NESTED_PRIVATE && access_level <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM && member_klass->nested_in == NULL)
8716 switch (access_level) {
8717 case TYPE_ATTRIBUTE_NOT_PUBLIC:
8718 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8720 case TYPE_ATTRIBUTE_PUBLIC:
8723 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
8726 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
8727 return is_nesting_type (member_klass, access_klass);
8729 case TYPE_ATTRIBUTE_NESTED_FAMILY:
8730 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
8732 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
8733 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8735 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
8736 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
8737 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
8739 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
8740 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
8741 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
8746 /* FIXME: check visibility of type, too */
8748 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
8750 MonoClass *member_generic_def;
8751 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
8752 access_klass->generic_container) &&
8753 (member_generic_def = get_generic_definition_class (member_klass))) {
8754 MonoClass *access_container;
8756 if (access_klass->generic_container)
8757 access_container = access_klass;
8759 access_container = access_klass->generic_class->container_class;
8761 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
8765 /* Partition I 8.5.3.2 */
8766 /* the access level values are the same for fields and methods */
8767 switch (access_level) {
8768 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
8769 /* same compilation unit */
8770 return access_klass->image == member_klass->image;
8771 case FIELD_ATTRIBUTE_PRIVATE:
8772 return access_klass == member_klass;
8773 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
8774 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
8775 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
8778 case FIELD_ATTRIBUTE_ASSEMBLY:
8779 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8780 case FIELD_ATTRIBUTE_FAMILY:
8781 if (is_valid_family_access (access_klass, member_klass, context_klass))
8784 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
8785 if (is_valid_family_access (access_klass, member_klass, context_klass))
8787 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8788 case FIELD_ATTRIBUTE_PUBLIC:
8795 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
8797 /* FIXME: check all overlapping fields */
8798 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
8800 MonoClass *nested = method->klass->nested_in;
8802 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
8805 nested = nested->nested_in;
8812 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
8814 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
8816 MonoClass *nested = method->klass->nested_in;
8818 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
8821 nested = nested->nested_in;
8826 * with generics calls to explicit interface implementations can be expressed
8827 * directly: the method is private, but we must allow it. This may be opening
8828 * a hole or the generics code should handle this differently.
8829 * Maybe just ensure the interface type is public.
8831 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
8837 * mono_method_can_access_method_full:
8838 * @method: The caller method
8839 * @called: The called method
8840 * @context_klass: The static type on stack of the owner @called object used
8842 * This function must be used with instance calls, as they have more strict family accessibility.
8843 * It can be used with static methods, but context_klass should be NULL.
8845 * Returns: TRUE if caller have proper visibility and acessibility to @called
8848 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
8850 MonoClass *access_class = method->klass;
8851 MonoClass *member_class = called->klass;
8852 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
8854 MonoClass *nested = access_class->nested_in;
8856 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
8859 nested = nested->nested_in;
8866 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
8869 if (called->is_inflated) {
8870 MonoMethodInflated * infl = (MonoMethodInflated*)called;
8871 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
8880 * mono_method_can_access_field_full:
8881 * @method: The caller method
8882 * @field: The accessed field
8883 * @context_klass: The static type on stack of the owner @field object used
8885 * This function must be used with instance fields, as they have more strict family accessibility.
8886 * It can be used with static fields, but context_klass should be NULL.
8888 * Returns: TRUE if caller have proper visibility and acessibility to @field
8891 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
8893 MonoClass *access_class = method->klass;
8894 MonoClass *member_class = field->parent;
8895 /* FIXME: check all overlapping fields */
8896 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
8898 MonoClass *nested = access_class->nested_in;
8900 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
8903 nested = nested->nested_in;
8910 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
8916 * mono_type_is_valid_enum_basetype:
8917 * @type: The MonoType to check
8919 * Returns: TRUE if the type can be used as the basetype of an enum
8921 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
8922 switch (type->type) {
8925 case MONO_TYPE_BOOLEAN:
8928 case MONO_TYPE_CHAR:
8941 * mono_class_is_valid_enum:
8942 * @klass: An enum class to be validated
8944 * This method verify the required properties an enum should have.
8946 * Returns: TRUE if the informed enum class is valid
8948 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
8949 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
8950 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
8952 gboolean mono_class_is_valid_enum (MonoClass *klass) {
8953 MonoClassField * field;
8954 gpointer iter = NULL;
8955 gboolean found_base_field = FALSE;
8957 g_assert (klass->enumtype);
8958 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
8959 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
8963 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
8966 while ((field = mono_class_get_fields (klass, &iter))) {
8967 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
8968 if (found_base_field)
8970 found_base_field = TRUE;
8971 if (!mono_type_is_valid_enum_basetype (field->type))
8976 if (!found_base_field)
8979 if (klass->method.count > 0)
8986 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
8988 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
8992 * mono_class_setup_interface_id:
8994 * Initializes MonoClass::interface_id if required.
8996 * LOCKING: Acquires the loader lock.
8999 mono_class_setup_interface_id (MonoClass *class)
9001 mono_loader_lock ();
9002 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
9003 class->interface_id = mono_get_unique_iid (class);
9004 mono_loader_unlock ();
9008 * mono_class_alloc_ext:
9010 * Allocate klass->ext if not already done.
9011 * LOCKING: Assumes the loader lock is held.
9014 mono_class_alloc_ext (MonoClass *klass)
9017 klass->ext = mono_class_alloc0 (klass, sizeof (MonoClassExt));
9018 class_ext_size += sizeof (MonoClassExt);
9023 * mono_class_setup_interfaces:
9025 * Initialize class->interfaces/interfaces_count.
9026 * LOCKING: Acquires the loader lock.
9027 * This function can fail the type.
9030 mono_class_setup_interfaces (MonoClass *klass, MonoError *error)
9034 mono_error_init (error);
9036 if (klass->interfaces_inited)
9039 mono_loader_lock ();
9041 if (klass->interfaces_inited) {
9042 mono_loader_unlock ();
9046 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
9049 /* generic IList, ICollection, IEnumerable */
9050 klass->interface_count = 1;
9051 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
9053 args [0] = &klass->element_class->byval_arg;
9054 klass->interfaces [0] = mono_class_bind_generic_parameters (
9055 mono_defaults.generic_ilist_class, 1, args, FALSE);
9056 } else if (klass->generic_class) {
9057 MonoClass *gklass = klass->generic_class->container_class;
9059 klass->interface_count = gklass->interface_count;
9060 klass->interfaces = mono_class_new0 (klass, MonoClass *, klass->interface_count);
9061 for (i = 0; i < klass->interface_count; i++) {
9062 klass->interfaces [i] = mono_class_inflate_generic_class_checked (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class), error);
9063 if (!mono_error_ok (error)) {
9064 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not setup the interfaces"));
9065 g_free (klass->interfaces);
9066 klass->interfaces = NULL;
9072 mono_memory_barrier ();
9074 klass->interfaces_inited = TRUE;
9076 mono_loader_unlock ();