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);
1006 * FIXME: This should hold, but it doesn't:
1008 * if (result->is_inflated && mono_method_get_context (result)->method_inst &&
1009 * mono_method_get_context (result)->method_inst == mono_method_get_generic_container (((MonoMethodInflated*)result)->declaring)->context.method_inst) {
1010 * g_assert (result->is_generic);
1013 * Fixing this here causes other things to break, hence a very
1014 * ugly hack in mini-trampolines.c - see
1015 * is_generic_method_definition().
1018 mono_method_inflated_lookup (iresult, TRUE);
1019 mono_loader_unlock ();
1023 mono_loader_unlock ();
1029 * mono_get_inflated_method:
1031 * Obsolete. We keep it around since it's mentioned in the public API.
1034 mono_get_inflated_method (MonoMethod *method)
1040 * mono_method_get_context_general:
1042 * @uninflated: handle uninflated methods?
1044 * Returns the generic context of a method or NULL if it doesn't have
1045 * one. For an inflated method that's the context stored in the
1046 * method. Otherwise it's in the method's generic container or in the
1047 * generic container of the method's class.
1050 mono_method_get_context_general (MonoMethod *method, gboolean uninflated)
1052 if (method->is_inflated) {
1053 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1054 return &imethod->context;
1058 if (method->is_generic)
1059 return &(mono_method_get_generic_container (method)->context);
1060 if (method->klass->generic_container)
1061 return &method->klass->generic_container->context;
1066 * mono_method_get_context:
1069 * Returns the generic context for method if it's inflated, otherwise
1073 mono_method_get_context (MonoMethod *method)
1075 return mono_method_get_context_general (method, FALSE);
1079 * mono_method_get_generic_container:
1081 * Returns the generic container of METHOD, which should be a generic method definition.
1082 * Returns NULL if METHOD is not a generic method definition.
1083 * LOCKING: Acquires the loader lock.
1085 MonoGenericContainer*
1086 mono_method_get_generic_container (MonoMethod *method)
1088 MonoGenericContainer *container;
1090 if (!method->is_generic)
1093 container = mono_image_property_lookup (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER);
1094 g_assert (container);
1100 * mono_method_set_generic_container:
1102 * Sets the generic container of METHOD to CONTAINER.
1103 * LOCKING: Acquires the loader lock.
1106 mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container)
1108 g_assert (method->is_generic);
1110 mono_image_property_insert (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER, container);
1114 * mono_class_find_enum_basetype:
1115 * @class: The enum class
1117 * Determine the basetype of an enum by iterating through its fields. We do this
1118 * in a separate function since it is cheaper than calling mono_class_setup_fields.
1121 mono_class_find_enum_basetype (MonoClass *class)
1123 MonoGenericContainer *container = NULL;
1124 MonoImage *m = class->image;
1125 const int top = class->field.count;
1128 g_assert (class->enumtype);
1130 if (class->generic_container)
1131 container = class->generic_container;
1132 else if (class->generic_class) {
1133 MonoClass *gklass = class->generic_class->container_class;
1135 container = gklass->generic_container;
1136 g_assert (container);
1140 * Fetch all the field information.
1142 for (i = 0; i < top; i++){
1144 guint32 cols [MONO_FIELD_SIZE];
1145 int idx = class->field.first + i;
1148 /* class->field.first and idx points into the fieldptr table */
1149 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1151 if (cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC) //no need to decode static fields
1154 if (!mono_verifier_verify_field_signature (class->image, cols [MONO_FIELD_SIGNATURE], NULL))
1157 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1158 mono_metadata_decode_value (sig, &sig);
1159 /* FIELD signature == 0x06 */
1163 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1166 if (class->generic_class) {
1167 //FIXME do we leak here?
1168 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
1169 ftype->attrs = cols [MONO_FIELD_FLAGS];
1179 * Checks for MonoClass::exception_type without resolving all MonoType's into MonoClass'es
1182 mono_type_has_exceptions (MonoType *type)
1184 switch (type->type) {
1185 case MONO_TYPE_CLASS:
1186 case MONO_TYPE_VALUETYPE:
1187 case MONO_TYPE_SZARRAY:
1188 return type->data.klass->exception_type;
1189 case MONO_TYPE_ARRAY:
1190 return type->data.array->eklass->exception_type;
1191 case MONO_TYPE_GENERICINST:
1192 return mono_generic_class_get_class (type->data.generic_class)->exception_type;
1200 * Allocate memory for some data belonging to CLASS, either from its image's mempool,
1204 mono_class_alloc (MonoClass *class, int size)
1206 if (class->generic_class)
1208 * This should be freed in free_generic_class () in metadata.c.
1209 * FIXME: It would be better to allocate this from the image set mempool, by
1210 * adding an image_set field to MonoGenericClass.
1212 return g_malloc (size);
1214 return mono_image_alloc (class->image, size);
1218 mono_class_alloc0 (MonoClass *class, int size)
1222 res = mono_class_alloc (class, size);
1223 memset (res, 0, size);
1227 #define mono_class_new0(class,struct_type, n_structs) \
1228 ((struct_type *) mono_class_alloc0 ((class), ((gsize) sizeof (struct_type)) * ((gsize) (n_structs))))
1231 * mono_class_setup_fields:
1232 * @class: The class to initialize
1234 * Initializes the class->fields.
1235 * LOCKING: Assumes the loader lock is held.
1238 mono_class_setup_fields (MonoClass *class)
1241 MonoImage *m = class->image;
1242 int top = class->field.count;
1243 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1244 int i, blittable = TRUE;
1245 guint32 real_size = 0;
1246 guint32 packing_size = 0;
1247 gboolean explicit_size;
1248 MonoClassField *field;
1249 MonoGenericContainer *container = NULL;
1250 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
1252 if (class->size_inited)
1255 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1257 * This happens when a generic instance of an unfinished generic typebuilder
1258 * is used as an element type for creating an array type. We can't initialize
1259 * the fields of this class using the fields of gklass, since gklass is not
1260 * finished yet, fields could be added to it later.
1266 mono_class_setup_fields (gtd);
1267 if (gtd->exception_type) {
1268 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1272 top = gtd->field.count;
1273 class->field.first = gtd->field.first;
1274 class->field.count = gtd->field.count;
1277 class->instance_size = 0;
1279 class->sizes.class_size = 0;
1281 if (class->parent) {
1282 /* For generic instances, class->parent might not have been initialized */
1283 mono_class_init (class->parent);
1284 if (!class->parent->size_inited) {
1285 mono_class_setup_fields (class->parent);
1286 if (class->parent->exception_type) {
1287 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1291 class->instance_size += class->parent->instance_size;
1292 class->min_align = class->parent->min_align;
1293 /* we use |= since it may have been set already */
1294 class->has_references |= class->parent->has_references;
1295 blittable = class->parent->blittable;
1297 class->instance_size = sizeof (MonoObject);
1298 class->min_align = 1;
1301 /* We can't really enable 16 bytes alignment until the GC supports it.
1302 The whole layout/instance size code must be reviewed because we do alignment calculation in terms of the
1303 boxed instance, which leads to unexplainable holes at the beginning of an object embedding a simd type.
1304 Bug #506144 is an example of this issue.
1306 if (class->simd_type)
1307 class->min_align = 16;
1309 /* Get the real size */
1310 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
1312 if (explicit_size) {
1313 g_assert ((packing_size & 0xfffffff0) == 0);
1314 class->packing_size = packing_size;
1315 real_size += class->instance_size;
1319 if (explicit_size && real_size) {
1320 class->instance_size = MAX (real_size, class->instance_size);
1322 class->size_inited = 1;
1323 class->blittable = blittable;
1327 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1330 /* Prevent infinite loops if the class references itself */
1331 class->size_inited = 1;
1333 class->fields = mono_class_alloc0 (class, sizeof (MonoClassField) * top);
1335 if (class->generic_container) {
1336 container = class->generic_container;
1338 container = gtd->generic_container;
1339 g_assert (container);
1343 * Fetch all the field information.
1345 for (i = 0; i < top; i++){
1346 int idx = class->field.first + i;
1347 field = &class->fields [i];
1349 field->parent = class;
1352 MonoClassField *gfield = >d->fields [i];
1354 field->name = mono_field_get_name (gfield);
1355 /*This memory must come from the image mempool as we don't have a chance to free it.*/
1356 field->type = mono_class_inflate_generic_type_no_copy (class->image, gfield->type, mono_class_get_context (class), &error);
1357 if (!mono_error_ok (&error)) {
1358 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", i, mono_error_get_message (&error));
1359 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
1361 mono_error_cleanup (&error);
1364 g_assert (field->type->attrs == gfield->type->attrs);
1365 if (mono_field_is_deleted (field))
1367 field->offset = gfield->offset;
1370 guint32 cols [MONO_FIELD_SIZE];
1372 /* class->field.first and idx points into the fieldptr table */
1373 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1374 /* The name is needed for fieldrefs */
1375 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
1376 if (!mono_verifier_verify_field_signature (class->image, cols [MONO_FIELD_SIGNATURE], NULL)) {
1377 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1380 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1381 mono_metadata_decode_value (sig, &sig);
1382 /* FIELD signature == 0x06 */
1383 g_assert (*sig == 0x06);
1384 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1386 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1389 if (mono_field_is_deleted (field))
1391 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1393 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1394 field->offset = offset;
1396 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1397 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Missing field layout info for %s", field->name));
1400 if (field->offset < -1) { /*-1 is used to encode special static fields */
1401 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Invalid negative field offset %d for %s", field->offset, field->name));
1407 /* Only do these checks if we still think this type is blittable */
1408 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1409 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1412 MonoClass *field_class = mono_class_from_mono_type (field->type);
1414 mono_class_setup_fields (field_class);
1415 if (field_class->exception_type) {
1416 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1420 if (!field_class || !field_class->blittable)
1425 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1426 class->cast_class = class->element_class = mono_class_from_mono_type (field->type);
1427 blittable = class->element_class->blittable;
1430 if (mono_type_has_exceptions (field->type)) {
1431 char *class_name = mono_type_get_full_name (class);
1432 char *type_name = mono_type_full_name (field->type);
1434 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1435 g_warning ("Invalid type %s for instance field %s:%s", type_name, class_name, field->name);
1436 g_free (class_name);
1440 /* The def_value of fields is compute lazily during vtable creation */
1443 if (class == mono_defaults.string_class)
1446 class->blittable = blittable;
1448 if (class->enumtype && !mono_class_enum_basetype (class)) {
1449 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1452 if (explicit_size && real_size) {
1453 class->instance_size = MAX (real_size, class->instance_size);
1456 if (class->exception_type)
1458 mono_class_layout_fields (class);
1460 /*valuetypes can't be neither bigger than 1Mb or empty. */
1461 if (class->valuetype && (class->instance_size <= 0 || class->instance_size > (0x100000 + sizeof (MonoObject))))
1462 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1466 * mono_class_setup_fields_locking:
1467 * @class: The class to initialize
1469 * Initializes the class->fields array of fields.
1470 * Aquires the loader lock.
1473 mono_class_setup_fields_locking (MonoClass *class)
1475 mono_loader_lock ();
1476 mono_class_setup_fields (class);
1477 mono_loader_unlock ();
1481 * mono_class_has_references:
1483 * Returns whenever @klass->has_references is set, initializing it if needed.
1484 * Aquires the loader lock.
1487 mono_class_has_references (MonoClass *klass)
1489 if (klass->init_pending) {
1490 /* Be conservative */
1493 mono_class_init (klass);
1495 return klass->has_references;
1499 /* useful until we keep track of gc-references in corlib etc. */
1501 #define IS_GC_REFERENCE(t) FALSE
1503 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1507 * mono_type_get_basic_type_from_generic:
1510 * Returns a closed type corresponding to the possibly open type
1514 mono_type_get_basic_type_from_generic (MonoType *type)
1516 /* When we do generic sharing we let type variables stand for reference types. */
1517 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1518 return &mono_defaults.object_class->byval_arg;
1523 * mono_class_layout_fields:
1526 * Compute the placement of fields inside an object or struct, according to
1527 * the layout rules and set the following fields in @class:
1528 * - has_references (if the class contains instance references firled or structs that contain references)
1529 * - has_static_refs (same, but for static fields)
1530 * - instance_size (size of the object in memory)
1531 * - class_size (size needed for the static fields)
1532 * - size_inited (flag set when the instance_size is set)
1534 * LOCKING: this is supposed to be called with the loader lock held.
1537 mono_class_layout_fields (MonoClass *class)
1540 const int top = class->field.count;
1541 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1542 guint32 pass, passes, real_size;
1543 gboolean gc_aware_layout = FALSE;
1544 MonoClassField *field;
1547 * When we do generic sharing we need to have layout
1548 * information for open generic classes (either with a generic
1549 * context containing type variables or with a generic
1550 * container), so we don't return in that case anymore.
1554 * Enable GC aware auto layout: in this mode, reference
1555 * fields are grouped together inside objects, increasing collector
1557 * Requires that all classes whose layout is known to native code be annotated
1558 * with [StructLayout (LayoutKind.Sequential)]
1559 * Value types have gc_aware_layout disabled by default, as per
1560 * what the default is for other runtimes.
1562 /* corlib is missing [StructLayout] directives in many places */
1563 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1564 if (class->image != mono_defaults.corlib &&
1565 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1566 gc_aware_layout = TRUE;
1567 /* from System.dll, used in metadata/process.h */
1568 if (strcmp (class->name, "ProcessStartInfo") == 0)
1569 gc_aware_layout = FALSE;
1572 /* Compute klass->has_references */
1574 * Process non-static fields first, since static fields might recursively
1575 * refer to the class itself.
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_references = TRUE;
1590 for (i = 0; i < top; i++) {
1593 field = &class->fields [i];
1595 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1596 ftype = mono_type_get_underlying_type (field->type);
1597 ftype = mono_type_get_basic_type_from_generic (ftype);
1598 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1599 class->has_static_refs = TRUE;
1603 for (i = 0; i < top; i++) {
1606 field = &class->fields [i];
1608 ftype = mono_type_get_underlying_type (field->type);
1609 ftype = mono_type_get_basic_type_from_generic (ftype);
1610 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1611 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1612 class->has_static_refs = TRUE;
1614 class->has_references = TRUE;
1619 * Compute field layout and total size (not considering static fields)
1623 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1624 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1626 if (gc_aware_layout)
1631 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1635 real_size = class->parent->instance_size;
1637 real_size = sizeof (MonoObject);
1639 for (pass = 0; pass < passes; ++pass) {
1640 for (i = 0; i < top; i++){
1645 field = &class->fields [i];
1647 if (mono_field_is_deleted (field))
1649 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1652 ftype = mono_type_get_underlying_type (field->type);
1653 ftype = mono_type_get_basic_type_from_generic (ftype);
1654 if (gc_aware_layout) {
1655 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1664 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1665 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1666 /* This field is a hack inserted by MCS to empty structures */
1670 size = mono_type_size (field->type, &align);
1672 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1673 align = class->packing_size ? MIN (class->packing_size, align): align;
1674 /* if the field has managed references, we need to force-align it
1677 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1678 align = MAX (align, sizeof (gpointer));
1680 class->min_align = MAX (align, class->min_align);
1681 field->offset = real_size;
1683 field->offset += align - 1;
1684 field->offset &= ~(align - 1);
1686 /*TypeBuilders produce all sort of weird things*/
1687 g_assert (class->image->dynamic || field->offset > 0);
1688 real_size = field->offset + size;
1691 class->instance_size = MAX (real_size, class->instance_size);
1693 if (class->instance_size & (class->min_align - 1)) {
1694 class->instance_size += class->min_align - 1;
1695 class->instance_size &= ~(class->min_align - 1);
1699 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1701 for (i = 0; i < top; i++) {
1706 field = &class->fields [i];
1709 * There must be info about all the fields in a type if it
1710 * uses explicit layout.
1713 if (mono_field_is_deleted (field))
1715 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1718 size = mono_type_size (field->type, &align);
1719 class->min_align = MAX (align, class->min_align);
1722 * When we get here, field->offset is already set by the
1723 * loader (for either runtime fields or fields loaded from metadata).
1724 * The offset is from the start of the object: this works for both
1725 * classes and valuetypes.
1727 field->offset += sizeof (MonoObject);
1728 ftype = mono_type_get_underlying_type (field->type);
1729 ftype = mono_type_get_basic_type_from_generic (ftype);
1730 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1731 if (field->offset % sizeof (gpointer)) {
1732 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1739 real_size = MAX (real_size, size + field->offset);
1741 class->instance_size = MAX (real_size, class->instance_size);
1745 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1747 * For small structs, set min_align to at least the struct size to improve
1748 * performance, and since the JIT memset/memcpy code assumes this and generates
1749 * unaligned accesses otherwise. See #78990 for a testcase.
1751 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1752 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1755 class->size_inited = 1;
1758 * Compute static field layout and size
1760 for (i = 0; i < top; i++){
1764 field = &class->fields [i];
1766 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1768 if (mono_field_is_deleted (field))
1771 if (mono_type_has_exceptions (field->type)) {
1772 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1776 size = mono_type_size (field->type, &align);
1777 field->offset = class->sizes.class_size;
1778 /*align is always non-zero here*/
1779 field->offset += align - 1;
1780 field->offset &= ~(align - 1);
1781 class->sizes.class_size = field->offset + size;
1786 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1790 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1791 method->klass = class;
1792 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1793 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1794 method->signature = sig;
1795 method->name = name;
1798 if (name [0] == '.') {
1799 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1801 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1807 * mono_class_setup_methods:
1810 * Initializes the 'methods' array in the klass.
1811 * Calling this method should be avoided if possible since it allocates a lot
1812 * of long-living MonoMethod structures.
1813 * Methods belonging to an interface are assigned a sequential slot starting
1816 * On failure this function sets class->exception_type
1819 mono_class_setup_methods (MonoClass *class)
1822 MonoMethod **methods;
1827 mono_loader_lock ();
1829 if (class->methods) {
1830 mono_loader_unlock ();
1834 if (class->generic_class) {
1836 MonoClass *gklass = class->generic_class->container_class;
1838 mono_class_init (gklass);
1839 if (!gklass->exception_type)
1840 mono_class_setup_methods (gklass);
1841 if (gklass->exception_type) {
1842 /*FIXME make exception_data less opaque so it's possible to dup it here*/
1843 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
1844 mono_loader_unlock ();
1848 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1849 class->method.count = gklass->method.count;
1850 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * (class->method.count + 1));
1852 for (i = 0; i < class->method.count; i++) {
1853 methods [i] = mono_class_inflate_generic_method_full_checked (
1854 gklass->methods [i], class, mono_class_get_context (class), &error);
1855 if (!mono_error_ok (&error)) {
1856 char *method = mono_method_full_name (gklass->methods [i], TRUE);
1857 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)));
1860 mono_error_cleanup (&error);
1861 mono_loader_unlock ();
1865 } else if (class->rank) {
1867 MonoMethod *amethod;
1868 MonoMethodSignature *sig;
1869 int count_generic = 0, first_generic = 0;
1872 class->method.count = 3 + (class->rank > 1? 2: 1);
1874 mono_class_setup_interfaces (class, &error);
1875 g_assert (mono_error_ok (&error)); /*FIXME can this fail for array types?*/
1877 if (class->interface_count) {
1878 count_generic = generic_array_methods (class);
1879 first_generic = class->method.count;
1880 class->method.count += class->interface_count * count_generic;
1883 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * class->method.count);
1885 sig = mono_metadata_signature_alloc (class->image, class->rank);
1886 sig->ret = &mono_defaults.void_class->byval_arg;
1887 sig->pinvoke = TRUE;
1888 sig->hasthis = TRUE;
1889 for (i = 0; i < class->rank; ++i)
1890 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1892 amethod = create_array_method (class, ".ctor", sig);
1893 methods [method_num++] = amethod;
1894 if (class->rank > 1) {
1895 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1896 sig->ret = &mono_defaults.void_class->byval_arg;
1897 sig->pinvoke = TRUE;
1898 sig->hasthis = TRUE;
1899 for (i = 0; i < class->rank * 2; ++i)
1900 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1902 amethod = create_array_method (class, ".ctor", sig);
1903 methods [method_num++] = amethod;
1905 /* element Get (idx11, [idx2, ...]) */
1906 sig = mono_metadata_signature_alloc (class->image, class->rank);
1907 sig->ret = &class->element_class->byval_arg;
1908 sig->pinvoke = TRUE;
1909 sig->hasthis = TRUE;
1910 for (i = 0; i < class->rank; ++i)
1911 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1912 amethod = create_array_method (class, "Get", sig);
1913 methods [method_num++] = amethod;
1914 /* element& Address (idx11, [idx2, ...]) */
1915 sig = mono_metadata_signature_alloc (class->image, class->rank);
1916 sig->ret = &class->element_class->this_arg;
1917 sig->pinvoke = TRUE;
1918 sig->hasthis = TRUE;
1919 for (i = 0; i < class->rank; ++i)
1920 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1921 amethod = create_array_method (class, "Address", sig);
1922 methods [method_num++] = amethod;
1923 /* void Set (idx11, [idx2, ...], element) */
1924 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1925 sig->ret = &mono_defaults.void_class->byval_arg;
1926 sig->pinvoke = TRUE;
1927 sig->hasthis = TRUE;
1928 for (i = 0; i < class->rank; ++i)
1929 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1930 sig->params [i] = &class->element_class->byval_arg;
1931 amethod = create_array_method (class, "Set", sig);
1932 methods [method_num++] = amethod;
1934 for (i = 0; i < class->interface_count; i++)
1935 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1937 methods = mono_class_alloc (class, sizeof (MonoMethod*) * class->method.count);
1938 for (i = 0; i < class->method.count; ++i) {
1939 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1940 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1944 if (MONO_CLASS_IS_INTERFACE (class)) {
1946 /*Only assign slots to virtual methods as interfaces are allowed to have static methods.*/
1947 for (i = 0; i < class->method.count; ++i) {
1948 if (methods [i]->flags & METHOD_ATTRIBUTE_VIRTUAL)
1949 methods [i]->slot = slot++;
1953 /* Needed because of the double-checking locking pattern */
1954 mono_memory_barrier ();
1956 class->methods = methods;
1958 if (mono_debugger_class_loaded_methods_func)
1959 mono_debugger_class_loaded_methods_func (class);
1961 mono_loader_unlock ();
1965 * mono_class_get_method_by_index:
1967 * Returns class->methods [index], initializing class->methods if neccesary.
1969 * LOCKING: Acquires the loader lock.
1972 mono_class_get_method_by_index (MonoClass *class, int index)
1974 /* Avoid calling setup_methods () if possible */
1975 if (class->generic_class && !class->methods) {
1976 MonoClass *gklass = class->generic_class->container_class;
1979 m = mono_class_inflate_generic_method_full (
1980 gklass->methods [index], class, mono_class_get_context (class));
1982 * If setup_methods () is called later for this class, no duplicates are created,
1983 * since inflate_generic_method guarantees that only one instance of a method
1984 * is created for each context.
1987 mono_class_setup_methods (class);
1988 g_assert (m == class->methods [index]);
1992 mono_class_setup_methods (class);
1993 if (class->exception_type) /*FIXME do proper error handling*/
1995 g_assert (index >= 0 && index < class->method.count);
1996 return class->methods [index];
2001 * mono_class_get_inflated_method:
2003 * Given an inflated class CLASS and a method METHOD which should be a method of
2004 * CLASS's generic definition, return the inflated method corresponding to METHOD.
2007 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
2009 MonoClass *gklass = class->generic_class->container_class;
2012 g_assert (method->klass == gklass);
2014 mono_class_setup_methods (gklass);
2015 g_assert (!gklass->exception_type); /*FIXME do proper error handling*/
2017 for (i = 0; i < gklass->method.count; ++i) {
2018 if (gklass->methods [i] == method) {
2020 return class->methods [i];
2022 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
2030 * mono_class_get_vtable_entry:
2032 * Returns class->vtable [offset], computing it if neccesary. Returns NULL on failure.
2033 * LOCKING: Acquires the loader lock.
2036 mono_class_get_vtable_entry (MonoClass *class, int offset)
2040 if (class->rank == 1) {
2042 * szarrays do not overwrite any methods of Array, so we can avoid
2043 * initializing their vtables in some cases.
2045 mono_class_setup_vtable (class->parent);
2046 if (offset < class->parent->vtable_size)
2047 return class->parent->vtable [offset];
2050 if (class->generic_class) {
2051 MonoClass *gklass = class->generic_class->container_class;
2052 mono_class_setup_vtable (gklass);
2053 m = gklass->vtable [offset];
2055 m = mono_class_inflate_generic_method_full (m, class, mono_class_get_context (class));
2057 mono_class_setup_vtable (class);
2058 if (class->exception_type)
2060 m = class->vtable [offset];
2067 * mono_class_get_vtable_size:
2069 * Return the vtable size for KLASS.
2072 mono_class_get_vtable_size (MonoClass *klass)
2074 mono_class_setup_vtable (klass);
2076 return klass->vtable_size;
2079 /*This method can fail the class.*/
2081 mono_class_setup_properties (MonoClass *class)
2083 guint startm, endm, i, j;
2084 guint32 cols [MONO_PROPERTY_SIZE];
2085 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2086 MonoProperty *properties;
2089 if (class->ext && class->ext->properties)
2092 mono_loader_lock ();
2094 if (class->ext && class->ext->properties) {
2095 mono_loader_unlock ();
2099 mono_class_alloc_ext (class);
2101 if (class->generic_class) {
2102 MonoClass *gklass = class->generic_class->container_class;
2104 mono_class_init (gklass);
2105 mono_class_setup_properties (gklass);
2106 if (gklass->exception_type) {
2107 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2108 mono_loader_unlock ();
2112 class->ext->property = gklass->ext->property;
2114 properties = mono_class_new0 (class, MonoProperty, class->ext->property.count + 1);
2116 for (i = 0; i < class->ext->property.count; i++) {
2117 MonoProperty *prop = &properties [i];
2119 *prop = gklass->ext->properties [i];
2122 prop->get = mono_class_inflate_generic_method_full (
2123 prop->get, class, mono_class_get_context (class));
2125 prop->set = mono_class_inflate_generic_method_full (
2126 prop->set, class, mono_class_get_context (class));
2128 prop->parent = class;
2131 int first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2132 int count = last - first;
2135 mono_class_setup_methods (class);
2136 if (class->exception_type) {
2137 mono_loader_unlock ();
2142 class->ext->property.first = first;
2143 class->ext->property.count = count;
2144 properties = mono_class_alloc0 (class, sizeof (MonoProperty) * count);
2145 for (i = first; i < last; ++i) {
2146 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
2147 properties [i - first].parent = class;
2148 properties [i - first].attrs = cols [MONO_PROPERTY_FLAGS];
2149 properties [i - first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
2151 startm = mono_metadata_methods_from_property (class->image, i, &endm);
2152 for (j = startm; j < endm; ++j) {
2155 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2157 if (class->image->uncompressed_metadata)
2158 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2159 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2161 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2163 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2164 case METHOD_SEMANTIC_SETTER:
2165 properties [i - first].set = method;
2167 case METHOD_SEMANTIC_GETTER:
2168 properties [i - first].get = method;
2176 /*Flush any pending writes as we do double checked locking on class->properties */
2177 mono_memory_barrier ();
2179 /* Leave this assignment as the last op in the function */
2180 class->ext->properties = properties;
2182 mono_loader_unlock ();
2186 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
2188 MonoMethod **om, **retval;
2191 for (om = methods, count = 0; *om; ++om, ++count)
2194 retval = g_new0 (MonoMethod*, count + 1);
2196 for (om = methods, count = 0; *om; ++om, ++count)
2197 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
2202 /*This method can fail the class.*/
2204 mono_class_setup_events (MonoClass *class)
2207 guint startm, endm, i, j;
2208 guint32 cols [MONO_EVENT_SIZE];
2209 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2213 if (class->ext && class->ext->events)
2216 mono_loader_lock ();
2218 if (class->ext && class->ext->events) {
2219 mono_loader_unlock ();
2223 mono_class_alloc_ext (class);
2225 if (class->generic_class) {
2226 MonoClass *gklass = class->generic_class->container_class;
2227 MonoGenericContext *context;
2229 mono_class_setup_events (gklass);
2230 if (gklass->exception_type) {
2231 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2232 mono_loader_unlock ();
2236 class->ext->event = gklass->ext->event;
2237 class->ext->events = mono_class_new0 (class, MonoEvent, class->ext->event.count);
2239 if (class->ext->event.count)
2240 context = mono_class_get_context (class);
2242 for (i = 0; i < class->ext->event.count; i++) {
2243 MonoEvent *event = &class->ext->events [i];
2244 MonoEvent *gevent = &gklass->ext->events [i];
2246 event->parent = class;
2247 event->name = gevent->name;
2248 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
2249 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
2250 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
2251 #ifndef MONO_SMALL_CONFIG
2252 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
2254 event->attrs = gevent->attrs;
2257 mono_loader_unlock ();
2261 first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2262 count = last - first;
2265 mono_class_setup_methods (class);
2266 if (class->exception_type) {
2267 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2268 mono_loader_unlock ();
2272 class->ext->event.first = first;
2273 class->ext->event.count = count;
2274 events = mono_class_alloc0 (class, sizeof (MonoEvent) * class->ext->event.count);
2275 for (i = first; i < last; ++i) {
2276 MonoEvent *event = &events [i - first];
2278 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
2279 event->parent = class;
2280 event->attrs = cols [MONO_EVENT_FLAGS];
2281 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
2283 startm = mono_metadata_methods_from_event (class->image, i, &endm);
2284 for (j = startm; j < endm; ++j) {
2287 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2289 if (class->image->uncompressed_metadata)
2290 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2291 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2293 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2295 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2296 case METHOD_SEMANTIC_ADD_ON:
2297 event->add = method;
2299 case METHOD_SEMANTIC_REMOVE_ON:
2300 event->remove = method;
2302 case METHOD_SEMANTIC_FIRE:
2303 event->raise = method;
2305 case METHOD_SEMANTIC_OTHER: {
2306 #ifndef MONO_SMALL_CONFIG
2309 if (event->other == NULL) {
2310 event->other = g_new0 (MonoMethod*, 2);
2312 while (event->other [n])
2314 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
2316 event->other [n] = method;
2317 /* NULL terminated */
2318 event->other [n + 1] = NULL;
2327 /*Flush any pending writes as we do double checked locking on class->properties */
2328 mono_memory_barrier ();
2330 /* Leave this assignment as the last op in the function */
2331 class->ext->events = events;
2333 mono_loader_unlock ();
2337 * Global pool of interface IDs, represented as a bitset.
2338 * LOCKING: this is supposed to be accessed with the loader lock held.
2340 static MonoBitSet *global_interface_bitset = NULL;
2343 * mono_unload_interface_ids:
2344 * @bitset: bit set of interface IDs
2346 * When an image is unloaded, the interface IDs associated with
2347 * the image are put back in the global pool of IDs so the numbers
2351 mono_unload_interface_ids (MonoBitSet *bitset)
2353 mono_loader_lock ();
2354 mono_bitset_sub (global_interface_bitset, bitset);
2355 mono_loader_unlock ();
2359 * mono_get_unique_iid:
2362 * Assign a unique integer ID to the interface represented by @class.
2363 * The ID will positive and as small as possible.
2364 * LOCKING: this is supposed to be called with the loader lock held.
2365 * Returns: the new ID.
2368 mono_get_unique_iid (MonoClass *class)
2372 g_assert (MONO_CLASS_IS_INTERFACE (class));
2374 if (!global_interface_bitset) {
2375 global_interface_bitset = mono_bitset_new (128, 0);
2378 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2380 int old_size = mono_bitset_size (global_interface_bitset);
2381 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2382 mono_bitset_free (global_interface_bitset);
2383 global_interface_bitset = new_set;
2386 mono_bitset_set (global_interface_bitset, iid);
2387 /* set the bit also in the per-image set */
2388 if (class->image->interface_bitset) {
2389 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2390 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2391 mono_bitset_free (class->image->interface_bitset);
2392 class->image->interface_bitset = new_set;
2395 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2397 mono_bitset_set (class->image->interface_bitset, iid);
2399 #ifndef MONO_SMALL_CONFIG
2400 if (mono_print_vtable) {
2402 char *type_name = mono_type_full_name (&class->byval_arg);
2403 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2404 generic_id = class->generic_class->context.class_inst->id;
2405 g_assert (generic_id != 0);
2409 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2414 g_assert (iid <= 65535);
2419 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res, MonoError *error)
2424 mono_class_setup_interfaces (klass, error);
2425 if (!mono_error_ok (error))
2428 for (i = 0; i < klass->interface_count; i++) {
2429 ic = klass->interfaces [i];
2432 *res = g_ptr_array_new ();
2433 g_ptr_array_add (*res, ic);
2434 mono_class_init (ic);
2436 collect_implemented_interfaces_aux (ic, res, error);
2437 if (!mono_error_ok (error))
2443 mono_class_get_implemented_interfaces (MonoClass *klass, MonoError *error)
2445 GPtrArray *res = NULL;
2447 collect_implemented_interfaces_aux (klass, &res, error);
2448 if (!mono_error_ok (error)) {
2450 g_ptr_array_free (res, TRUE);
2457 compare_interface_ids (const void *p_key, const void *p_element) {
2458 const MonoClass *key = p_key;
2459 const MonoClass *element = *(MonoClass**) p_element;
2461 return (key->interface_id - element->interface_id);
2464 /*FIXME verify all callers if they should switch to mono_class_interface_offset_with_variance*/
2466 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2467 MonoClass **result = bsearch (
2469 klass->interfaces_packed,
2470 klass->interface_offsets_count,
2471 sizeof (MonoClass *),
2472 compare_interface_ids);
2474 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2481 * mono_class_interface_offset_with_variance:
2483 * Return the interface offset of @itf in @klass. Sets @non_exact_match to TRUE if the match required variance check
2484 * If @itf is an interface with generic variant arguments, try to find the compatible one.
2486 * Note that this function is responsible for resolving ambiguities. Right now we use whatever ordering interfaces_packed gives us.
2488 * FIXME figure out MS disambiguation rules and fix this function.
2491 mono_class_interface_offset_with_variance (MonoClass *klass, MonoClass *itf, gboolean *non_exact_match) {
2492 int i = mono_class_interface_offset (klass, itf);
2493 *non_exact_match = FALSE;
2497 if (!mono_class_has_variant_generic_params (itf))
2500 for (i = 0; i < klass->interface_offsets_count; i++) {
2501 if (mono_class_is_variant_compatible (itf, klass->interfaces_packed [i])) {
2502 *non_exact_match = TRUE;
2503 return klass->interface_offsets_packed [i];
2511 print_implemented_interfaces (MonoClass *klass) {
2514 GPtrArray *ifaces = NULL;
2516 int ancestor_level = 0;
2518 name = mono_type_get_full_name (klass);
2519 printf ("Packed interface table for class %s has size %d\n", name, klass->interface_offsets_count);
2522 for (i = 0; i < klass->interface_offsets_count; i++)
2523 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2524 klass->interfaces_packed [i]->interface_id,
2525 klass->interface_offsets_packed [i],
2526 klass->interfaces_packed [i]->method.count,
2527 klass->interfaces_packed [i]->name_space,
2528 klass->interfaces_packed [i]->name );
2529 printf ("Interface flags: ");
2530 for (i = 0; i <= klass->max_interface_id; i++)
2531 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2532 printf ("(%d,T)", i);
2534 printf ("(%d,F)", i);
2536 printf ("Dump interface flags:");
2537 #ifdef COMPRESSED_INTERFACE_BITMAP
2539 const uint8_t* p = klass->interface_bitmap;
2540 i = klass->max_interface_id;
2542 printf (" %d x 00 %02X", p [0], p [1]);
2548 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2549 printf (" %02X", klass->interface_bitmap [i]);
2552 while (klass != NULL) {
2553 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2554 ifaces = mono_class_get_implemented_interfaces (klass, &error);
2555 if (!mono_error_ok (&error)) {
2556 printf (" Type failed due to %s\n", mono_error_get_message (&error));
2557 mono_error_cleanup (&error);
2558 } else if (ifaces) {
2559 for (i = 0; i < ifaces->len; i++) {
2560 MonoClass *ic = g_ptr_array_index (ifaces, i);
2561 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2562 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2564 mono_class_interface_offset (klass, ic),
2569 g_ptr_array_free (ifaces, TRUE);
2572 klass = klass->parent;
2577 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2580 args [0] = &arg0->byval_arg;
2582 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2586 array_class_get_if_rank (MonoClass *class, guint rank)
2588 return rank ? mono_array_class_get (class, rank) : class;
2592 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2594 valuetype_types [0] = eclass;
2595 if (eclass == mono_defaults.int16_class)
2596 valuetype_types [1] = mono_defaults.uint16_class;
2597 else if (eclass == mono_defaults.uint16_class)
2598 valuetype_types [1] = mono_defaults.int16_class;
2599 else if (eclass == mono_defaults.int32_class)
2600 valuetype_types [1] = mono_defaults.uint32_class;
2601 else if (eclass == mono_defaults.uint32_class)
2602 valuetype_types [1] = mono_defaults.int32_class;
2603 else if (eclass == mono_defaults.int64_class)
2604 valuetype_types [1] = mono_defaults.uint64_class;
2605 else if (eclass == mono_defaults.uint64_class)
2606 valuetype_types [1] = mono_defaults.int64_class;
2607 else if (eclass == mono_defaults.byte_class)
2608 valuetype_types [1] = mono_defaults.sbyte_class;
2609 else if (eclass == mono_defaults.sbyte_class)
2610 valuetype_types [1] = mono_defaults.byte_class;
2611 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2612 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2615 /* this won't be needed once bug #325495 is completely fixed
2616 * though we'll need something similar to know which interfaces to allow
2617 * in arrays when they'll be lazyly created
2619 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2620 * MS returns diferrent types based on which instance is called. For example:
2621 * object obj = new byte[10][];
2622 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2623 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2626 * Fixing this should kill quite some code, save some bits and improve compatibility.
2629 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2631 MonoClass *eclass = class->element_class;
2632 static MonoClass* generic_icollection_class = NULL;
2633 static MonoClass* generic_ienumerable_class = NULL;
2634 static MonoClass* generic_ienumerator_class = NULL;
2635 MonoClass *valuetype_types[2] = { NULL, NULL };
2636 MonoClass **interfaces = NULL;
2637 int i, interface_count, real_count, original_rank;
2639 gboolean internal_enumerator;
2640 gboolean eclass_is_valuetype;
2642 if (!mono_defaults.generic_ilist_class) {
2646 internal_enumerator = FALSE;
2647 eclass_is_valuetype = FALSE;
2648 original_rank = eclass->rank;
2649 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2650 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2652 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2654 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2655 original_rank = eclass->rank;
2656 eclass = eclass->element_class;
2657 internal_enumerator = TRUE;
2658 *is_enumerator = TRUE;
2666 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2667 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2669 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2671 if (!generic_icollection_class) {
2672 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2673 "System.Collections.Generic", "ICollection`1");
2674 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2675 "System.Collections.Generic", "IEnumerable`1");
2676 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2677 "System.Collections.Generic", "IEnumerator`1");
2680 mono_class_init (eclass);
2683 * Arrays in 2.0 need to implement a number of generic interfaces
2684 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2685 * on the element class). We collect the types needed to build the
2686 * instantiations in interfaces at intervals of 3, because 3 are
2687 * the generic interfaces needed to implement.
2689 if (eclass->valuetype) {
2690 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2692 /* IList, ICollection, IEnumerable */
2693 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2694 if (internal_enumerator) {
2696 if (valuetype_types [1])
2700 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2701 interfaces [0] = valuetype_types [0];
2702 if (valuetype_types [1])
2703 interfaces [3] = valuetype_types [1];
2705 eclass_is_valuetype = TRUE;
2708 int idepth = eclass->idepth;
2709 if (!internal_enumerator)
2712 // FIXME: This doesn't seem to work/required for generic params
2713 if (!(eclass->this_arg.type == MONO_TYPE_VAR || eclass->this_arg.type == MONO_TYPE_MVAR || (eclass->image->dynamic && !eclass->wastypebuilder)))
2714 mono_class_setup_interface_offsets (eclass);
2716 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2717 /* we add object for interfaces and the supertypes for the other
2718 * types. The last of the supertypes is the element class itself which we
2719 * already created the explicit interfaces for (so we include it for IEnumerator
2720 * and exclude it for arrays).
2722 if (MONO_CLASS_IS_INTERFACE (eclass))
2725 interface_count += idepth;
2726 if (eclass->rank && eclass->element_class->valuetype) {
2727 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2728 if (valuetype_types [1])
2731 /* IList, ICollection, IEnumerable */
2732 interface_count *= 3;
2733 real_count = interface_count;
2734 if (internal_enumerator) {
2735 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2736 if (valuetype_types [1])
2739 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2740 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2741 interfaces [0] = mono_defaults.object_class;
2745 for (i = 0; i < idepth; i++) {
2746 mono_class_init (eclass->supertypes [i]);
2747 interfaces [j] = eclass->supertypes [i];
2751 if (all_interfaces) {
2752 for (i = 0; i < eclass->interface_offsets_count; i++) {
2753 interfaces [j] = eclass->interfaces_packed [i];
2757 for (i = 0; i < eclass->interface_count; i++) {
2758 interfaces [j] = eclass->interfaces [i];
2762 if (valuetype_types [1]) {
2763 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2768 /* instantiate the generic interfaces */
2769 for (i = 0; i < interface_count; i += 3) {
2770 MonoClass *iface = interfaces [i];
2772 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2773 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2774 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2776 if (internal_enumerator) {
2778 /* instantiate IEnumerator<iface> */
2779 for (i = 0; i < interface_count; i++) {
2780 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2782 j = interface_count;
2783 if (!eclass_is_valuetype) {
2784 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2785 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2788 for (i = 0; i < eclass->idepth; i++) {
2789 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2793 for (i = 0; i < eclass->interface_offsets_count; i++) {
2794 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2798 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2800 if (valuetype_types [1])
2801 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2805 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2806 for (i = 0; i < real_count; ++i) {
2807 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2808 g_print ("%s implements %s\n", type_name, name);
2819 find_array_interface (MonoClass *klass, const char *name)
2822 for (i = 0; i < klass->interface_count; ++i) {
2823 if (strcmp (klass->interfaces [i]->name, name) == 0)
2830 * Return the number of virtual methods.
2831 * Even for interfaces we can't simply return the number of methods as all CLR types are allowed to have static methods.
2832 * Return -1 on failure.
2833 * FIXME It would be nice if this information could be cached somewhere.
2836 count_virtual_methods (MonoClass *class)
2840 class = mono_class_get_generic_type_definition (class); /*We can find this information by looking at the GTD*/
2842 if (class->methods || !MONO_CLASS_HAS_STATIC_METADATA (class)) {
2843 mono_class_setup_methods (class);
2844 if (class->exception_type)
2847 for (i = 0; i < class->method.count; ++i) {
2848 flags = class->methods [i]->flags;
2849 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2853 for (i = 0; i < class->method.count; ++i) {
2854 flags = mono_metadata_decode_table_row_col (class->image, MONO_TABLE_METHOD, class->method.first + i, MONO_METHOD_FLAGS);
2856 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2864 find_interface (int num_ifaces, MonoClass **interfaces_full, MonoClass *ic)
2872 m = (l + num_ifaces) / 2;
2873 if (interfaces_full [m] == ic)
2875 if (l == num_ifaces)
2877 if (!interfaces_full [m] || interfaces_full [m]->interface_id > ic->interface_id) {
2886 find_interface_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic)
2888 int i = find_interface (num_ifaces, interfaces_full, ic);
2890 return interface_offsets_full [i];
2895 set_interface_and_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic, int offset, mono_bool force_set)
2897 int i = find_interface (num_ifaces, interfaces_full, ic);
2901 interface_offsets_full [i] = offset;
2904 for (i = 0; i < num_ifaces; ++i) {
2905 if (interfaces_full [i]) {
2907 if (interfaces_full [i]->interface_id < ic->interface_id)
2910 while (end < num_ifaces && interfaces_full [end]) end++;
2911 memmove (interfaces_full + i + 1, interfaces_full + i, sizeof (MonoClass*) * (end - i));
2912 memmove (interface_offsets_full + i + 1, interface_offsets_full + i, sizeof (int) * (end - i));
2914 interfaces_full [i] = ic;
2915 interface_offsets_full [i] = offset;
2921 #ifdef COMPRESSED_INTERFACE_BITMAP
2924 * Compressed interface bitmap design.
2926 * Interface bitmaps take a large amount of memory, because their size is
2927 * linear with the maximum interface id assigned in the process (each interface
2928 * is assigned a unique id as it is loaded). The number of interface classes
2929 * is high because of the many implicit interfaces implemented by arrays (we'll
2930 * need to lazy-load them in the future).
2931 * Most classes implement a very small number of interfaces, so the bitmap is
2932 * sparse. This bitmap needs to be checked by interface casts, so access to the
2933 * needed bit must be fast and doable with few jit instructions.
2935 * The current compression format is as follows:
2936 * *) it is a sequence of one or more two-byte elements
2937 * *) the first byte in the element is the count of empty bitmap bytes
2938 * at the current bitmap position
2939 * *) the second byte in the element is an actual bitmap byte at the current
2942 * As an example, the following compressed bitmap bytes:
2943 * 0x07 0x01 0x00 0x7
2944 * correspond to the following bitmap:
2945 * 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x01 0x07
2947 * Each two-byte element can represent up to 2048 bitmap bits, but as few as a single
2948 * bitmap byte for non-sparse sequences. In practice the interface bitmaps created
2949 * during a gmcs bootstrap are reduced to less tha 5% of the original size.
2953 * mono_compress_bitmap:
2954 * @dest: destination buffer
2955 * @bitmap: bitmap buffer
2956 * @size: size of @bitmap in bytes
2958 * This is a mono internal function.
2959 * The @bitmap data is compressed into a format that is small but
2960 * still searchable in few instructions by the JIT and runtime.
2961 * The compressed data is stored in the buffer pointed to by the
2962 * @dest array. Passing a #NULL value for @dest allows to just compute
2963 * the size of the buffer.
2964 * This compression algorithm assumes the bits set in the bitmap are
2965 * few and far between, like in interface bitmaps.
2966 * Returns: the size of the compressed bitmap in bytes.
2969 mono_compress_bitmap (uint8_t *dest, const uint8_t *bitmap, int size)
2973 const uint8_t *end = bitmap + size;
2974 while (bitmap < end) {
2975 if (*bitmap || numz == 255) {
2999 * mono_class_interface_match:
3000 * @bitmap: a compressed bitmap buffer
3001 * @id: the index to check in the bitmap
3003 * This is a mono internal function.
3004 * Checks if a bit is set in a compressed interface bitmap. @id must
3005 * be already checked for being smaller than the maximum id encoded in the
3008 * Returns: a non-zero value if bit @id is set in the bitmap @bitmap,
3012 mono_class_interface_match (const uint8_t *bitmap, int id)
3015 id -= bitmap [0] * 8;
3019 return bitmap [1] & (1 << id);
3028 * LOCKING: this is supposed to be called with the loader lock held.
3029 * Return -1 on failure and set exception_type
3032 setup_interface_offsets (MonoClass *class, int cur_slot)
3036 int i, j, max_iid, num_ifaces;
3037 MonoClass **interfaces_full = NULL;
3038 int *interface_offsets_full = NULL;
3040 GPtrArray **ifaces_array = NULL;
3041 int interface_offsets_count;
3042 MonoClass **array_interfaces = NULL;
3043 int num_array_interfaces;
3044 int is_enumerator = FALSE;
3046 mono_class_setup_supertypes (class);
3048 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
3049 * implicit interfaces have the property that they are assigned the same slot in the
3050 * vtables for compatible interfaces
3052 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
3054 /* compute maximum number of slots and maximum interface id */
3056 num_ifaces = num_array_interfaces; /* this can include duplicated ones */
3057 ifaces_array = g_new0 (GPtrArray *, class->idepth);
3058 for (j = 0; j < class->idepth; j++) {
3059 k = class->supertypes [j];
3060 num_ifaces += k->interface_count;
3061 for (i = 0; i < k->interface_count; i++) {
3062 ic = k->interfaces [i];
3065 mono_class_init (ic);
3067 if (max_iid < ic->interface_id)
3068 max_iid = ic->interface_id;
3070 ifaces = mono_class_get_implemented_interfaces (k, &error);
3071 if (!mono_error_ok (&error)) {
3072 char *name = mono_type_get_full_name (k);
3073 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)));
3075 mono_error_cleanup (&error);
3080 num_ifaces += ifaces->len;
3081 for (i = 0; i < ifaces->len; ++i) {
3082 ic = g_ptr_array_index (ifaces, i);
3083 if (max_iid < ic->interface_id)
3084 max_iid = ic->interface_id;
3086 ifaces_array [j] = ifaces;
3090 for (i = 0; i < num_array_interfaces; ++i) {
3091 ic = array_interfaces [i];
3092 mono_class_init (ic);
3093 if (max_iid < ic->interface_id)
3094 max_iid = ic->interface_id;
3097 if (MONO_CLASS_IS_INTERFACE (class)) {
3099 if (max_iid < class->interface_id)
3100 max_iid = class->interface_id;
3102 class->max_interface_id = max_iid;
3103 /* compute vtable offset for interfaces */
3104 interfaces_full = g_malloc0 (sizeof (MonoClass*) * num_ifaces);
3105 interface_offsets_full = g_malloc (sizeof (int) * num_ifaces);
3107 for (i = 0; i < num_ifaces; i++) {
3108 interface_offsets_full [i] = -1;
3111 /* skip the current class */
3112 for (j = 0; j < class->idepth - 1; j++) {
3113 k = class->supertypes [j];
3114 ifaces = ifaces_array [j];
3117 for (i = 0; i < ifaces->len; ++i) {
3119 ic = g_ptr_array_index (ifaces, i);
3121 /*Force the sharing of interface offsets between parent and subtypes.*/
3122 io = mono_class_interface_offset (k, ic);
3124 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, io, TRUE);
3129 g_assert (class == class->supertypes [class->idepth - 1]);
3130 ifaces = ifaces_array [class->idepth - 1];
3132 for (i = 0; i < ifaces->len; ++i) {
3134 ic = g_ptr_array_index (ifaces, i);
3135 if (set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, cur_slot, FALSE))
3137 count = count_virtual_methods (ic);
3139 char *name = mono_type_get_full_name (ic);
3140 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Error calculating interface offset of %s", name));
3149 if (MONO_CLASS_IS_INTERFACE (class))
3150 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, class, cur_slot, TRUE);
3152 if (num_array_interfaces) {
3153 if (is_enumerator) {
3154 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
3155 int ienumerator_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ienumerator_idx]);
3156 g_assert (ienumerator_offset >= 0);
3157 for (i = 0; i < num_array_interfaces; ++i) {
3158 ic = array_interfaces [i];
3159 if (strcmp (ic->name, "IEnumerator`1") == 0)
3160 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, ienumerator_offset, TRUE);
3162 g_assert_not_reached ();
3163 /*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);*/
3166 int ilist_offset, icollection_offset, ienumerable_offset;
3167 int ilist_iface_idx = find_array_interface (class, "IList`1");
3168 MonoClass* ilist_class = class->interfaces [ilist_iface_idx];
3169 int icollection_iface_idx = find_array_interface (ilist_class, "ICollection`1");
3170 int ienumerable_iface_idx = find_array_interface (ilist_class, "IEnumerable`1");
3171 ilist_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ilist_iface_idx]);
3172 icollection_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [icollection_iface_idx]);
3173 ienumerable_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [ienumerable_iface_idx]);
3174 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
3175 for (i = 0; i < num_array_interfaces; ++i) {
3177 ic = array_interfaces [i];
3178 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
3179 offset = ilist_offset;
3180 else if (strcmp (ic->name, "ICollection`1") == 0)
3181 offset = icollection_offset;
3182 else if (strcmp (ic->name, "IEnumerable`1") == 0)
3183 offset = ienumerable_offset;
3185 g_assert_not_reached ();
3186 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, offset, TRUE);
3187 /*g_print ("type %s has %s offset at %d (%s)\n", class->name, ic->name, offset, class->interfaces [0]->name);*/
3192 for (interface_offsets_count = 0, i = 0; i < num_ifaces; i++) {
3193 if (interface_offsets_full [i] != -1) {
3194 interface_offsets_count ++;
3199 * We might get called twice: once from mono_class_init () then once from
3200 * mono_class_setup_vtable ().
3202 if (class->interfaces_packed) {
3203 g_assert (class->interface_offsets_count == interface_offsets_count);
3207 class->interface_offsets_count = interface_offsets_count;
3208 class->interfaces_packed = mono_class_alloc (class, sizeof (MonoClass*) * interface_offsets_count);
3209 class->interface_offsets_packed = mono_class_alloc (class, sizeof (guint16) * interface_offsets_count);
3210 bsize = (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0);
3211 #ifdef COMPRESSED_INTERFACE_BITMAP
3212 bitmap = g_malloc0 (bsize);
3214 bitmap = mono_class_alloc0 (class, bsize);
3216 for (i = 0; i < interface_offsets_count; i++) {
3217 int id = interfaces_full [i]->interface_id;
3218 bitmap [id >> 3] |= (1 << (id & 7));
3219 class->interfaces_packed [i] = interfaces_full [i];
3220 class->interface_offsets_packed [i] = interface_offsets_full [i];
3221 /*if (num_array_interfaces)
3222 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]);*/
3224 #ifdef COMPRESSED_INTERFACE_BITMAP
3225 i = mono_compress_bitmap (NULL, bitmap, bsize);
3226 class->interface_bitmap = mono_class_alloc0 (class, i);
3227 mono_compress_bitmap (class->interface_bitmap, bitmap, bsize);
3230 class->interface_bitmap = bitmap;
3235 g_free (interfaces_full);
3236 g_free (interface_offsets_full);
3237 g_free (array_interfaces);
3238 for (i = 0; i < class->idepth; i++) {
3239 ifaces = ifaces_array [i];
3241 g_ptr_array_free (ifaces, TRUE);
3243 g_free (ifaces_array);
3245 //printf ("JUST DONE: ");
3246 //print_implemented_interfaces (class);
3252 * Setup interface offsets for interfaces.
3254 * - class->max_interface_id
3255 * - class->interface_offsets_count
3256 * - class->interfaces_packed
3257 * - class->interface_offsets_packed
3258 * - class->interface_bitmap
3260 * This function can fail @class.
3263 mono_class_setup_interface_offsets (MonoClass *class)
3265 mono_loader_lock ();
3267 setup_interface_offsets (class, 0);
3269 mono_loader_unlock ();
3273 * mono_class_setup_vtable:
3275 * Creates the generic vtable of CLASS.
3276 * Initializes the following fields in MonoClass:
3279 * Plus all the fields initialized by setup_interface_offsets ().
3280 * If there is an error during vtable construction, class->exception_type is set.
3282 * LOCKING: Acquires the loader lock.
3285 mono_class_setup_vtable (MonoClass *class)
3287 MonoMethod **overrides;
3288 MonoGenericContext *context;
3296 if (mono_debug_using_mono_debugger ())
3297 /* The debugger currently depends on this */
3298 mono_class_setup_methods (class);
3300 if (MONO_CLASS_IS_INTERFACE (class)) {
3301 /* This sets method->slot for all methods if this is an interface */
3302 mono_class_setup_methods (class);
3306 if (class->exception_type)
3309 mono_loader_lock ();
3311 if (class->vtable) {
3312 mono_loader_unlock ();
3316 mono_stats.generic_vtable_count ++;
3318 if (class->generic_class) {
3319 context = mono_class_get_context (class);
3320 type_token = class->generic_class->container_class->type_token;
3322 context = (MonoGenericContext *) class->generic_container;
3323 type_token = class->type_token;
3326 if (class->image->dynamic) {
3327 /* Generic instances can have zero method overrides without causing any harm.
3328 * This is true since we don't do layout all over again for them, we simply inflate
3329 * the layout of the parent.
3331 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
3333 /* The following call fails if there are missing methods in the type */
3334 /* FIXME it's probably a good idea to avoid this for generic instances. */
3335 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
3339 mono_class_setup_vtable_general (class, overrides, onum);
3343 mono_loader_unlock ();
3348 #define DEBUG_INTERFACE_VTABLE_CODE 0
3349 #define TRACE_INTERFACE_VTABLE_CODE 0
3350 #define VERIFY_INTERFACE_VTABLE_CODE 0
3351 #define VTABLE_SELECTOR (1)
3353 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3354 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
3355 if (!(VTABLE_SELECTOR)) break; \
3359 #define DEBUG_INTERFACE_VTABLE(stmt)
3362 #if TRACE_INTERFACE_VTABLE_CODE
3363 #define TRACE_INTERFACE_VTABLE(stmt) do {\
3364 if (!(VTABLE_SELECTOR)) break; \
3368 #define TRACE_INTERFACE_VTABLE(stmt)
3371 #if VERIFY_INTERFACE_VTABLE_CODE
3372 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
3373 if (!(VTABLE_SELECTOR)) break; \
3377 #define VERIFY_INTERFACE_VTABLE(stmt)
3381 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3383 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
3387 GString *res = g_string_new ("");
3389 g_string_append_c (res, '(');
3390 for (i = 0; i < sig->param_count; ++i) {
3392 g_string_append_c (res, ',');
3393 mono_type_get_desc (res, sig->params [i], include_namespace);
3395 g_string_append (res, ")=>");
3396 if (sig->ret != NULL) {
3397 mono_type_get_desc (res, sig->ret, include_namespace);
3399 g_string_append (res, "NULL");
3402 g_string_free (res, FALSE);
3406 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
3407 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
3408 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
3409 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
3417 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) {
3418 MonoMethodSignature *cmsig, *imsig;
3419 if (strcmp (im->name, cm->name) == 0) {
3420 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
3421 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
3424 if (! slot_is_empty) {
3425 if (require_newslot) {
3426 if (! interface_is_explicitly_implemented_by_class) {
3427 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
3430 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3431 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
3435 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
3438 cmsig = mono_method_signature (cm);
3439 imsig = mono_method_signature (im);
3440 if (!cmsig || !imsig) {
3441 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not resolve the signature of a virtual method"));
3445 if (! mono_metadata_signature_equal (cmsig, imsig)) {
3446 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
3447 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3448 TRACE_INTERFACE_VTABLE (printf ("]"));
3451 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
3452 /* CAS - SecurityAction.InheritanceDemand on interface */
3453 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3454 mono_secman_inheritancedemand_method (cm, im);
3457 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3458 mono_security_core_clr_check_override (class, cm, im);
3459 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
3462 MonoClass *ic = im->klass;
3463 const char *ic_name_space = ic->name_space;
3464 const char *ic_name = ic->name;
3467 if (! require_newslot) {
3468 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
3471 if (cm->klass->rank == 0) {
3472 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
3475 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
3476 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
3477 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3478 TRACE_INTERFACE_VTABLE (printf ("]"));
3481 if (mono_class_get_image (ic) != mono_defaults.corlib) {
3482 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
3485 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
3486 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
3489 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
3490 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
3494 subname = strstr (cm->name, ic_name_space);
3495 if (subname != cm->name) {
3496 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
3499 subname += strlen (ic_name_space);
3500 if (subname [0] != '.') {
3501 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
3505 if (strstr (subname, ic_name) != subname) {
3506 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
3509 subname += strlen (ic_name);
3510 if (subname [0] != '.') {
3511 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
3515 if (strcmp (subname, im->name) != 0) {
3516 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
3520 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
3521 /* CAS - SecurityAction.InheritanceDemand on interface */
3522 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3523 mono_secman_inheritancedemand_method (cm, im);
3526 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3527 mono_security_core_clr_check_override (class, cm, im);
3529 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
3534 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3536 foreach_override (gpointer key, gpointer value, gpointer user_data) {
3537 MonoMethod *method = key;
3538 MonoMethod *override = value;
3539 MonoClass *method_class = mono_method_get_class (method);
3540 MonoClass *override_class = mono_method_get_class (override);
3542 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
3543 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
3544 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
3547 print_overrides (GHashTable *override_map, const char *message) {
3549 printf ("Override map \"%s\" START:\n", message);
3550 g_hash_table_foreach (override_map, foreach_override, NULL);
3551 printf ("Override map \"%s\" END.\n", message);
3553 printf ("Override map \"%s\" EMPTY.\n", message);
3557 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
3558 char *full_name = mono_type_full_name (&class->byval_arg);
3562 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
3564 if (print_interfaces) {
3565 print_implemented_interfaces (class);
3566 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
3569 if (class->parent) {
3570 parent_size = class->parent->vtable_size;
3574 for (i = 0; i < size; ++i) {
3575 MonoMethod *cm = vtable [i];
3577 char *cm_name = mono_method_full_name (cm, TRUE);
3578 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
3579 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
3588 #if VERIFY_INTERFACE_VTABLE_CODE
3590 mono_method_try_get_vtable_index (MonoMethod *method)
3592 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3593 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3594 if (imethod->declaring->is_generic)
3595 return imethod->declaring->slot;
3597 return method->slot;
3601 mono_class_verify_vtable (MonoClass *class)
3604 char *full_name = mono_type_full_name (&class->byval_arg);
3606 printf ("*** Verifying VTable of class '%s' \n", full_name);
3610 if (!class->methods)
3613 for (i = 0; i < class->method.count; ++i) {
3614 MonoMethod *cm = class->methods [i];
3617 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3621 full_name = mono_method_full_name (cm, TRUE);
3623 slot = mono_method_try_get_vtable_index (cm);
3625 if (slot >= class->vtable_size) {
3626 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
3630 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot])) {
3631 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
3632 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
3633 g_free (other_name);
3636 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
3643 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
3645 char *method_signature;
3648 for (index = 0; index < onum; ++index) {
3649 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
3650 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
3652 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
3653 type_name = mono_type_full_name (&class->byval_arg);
3654 printf ("no implementation for interface method %s::%s(%s) in class %s\n",
3655 mono_type_get_name (&ic->byval_arg), im->name, method_signature, type_name);
3656 g_free (method_signature);
3658 mono_class_setup_methods (class);
3659 if (class->exception_type) {
3660 char *name = mono_type_get_full_name (class);
3661 printf ("CLASS %s failed to resolve methods\n", name);
3665 for (index = 0; index < class->method.count; ++index) {
3666 MonoMethod *cm = class->methods [index];
3667 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3669 printf ("METHOD %s(%s)\n", cm->name, method_signature);
3670 g_free (method_signature);
3675 verify_class_overrides (MonoClass *class, MonoMethod **overrides, int onum)
3679 for (i = 0; i < onum; ++i) {
3680 MonoMethod *decl = overrides [i * 2];
3681 MonoMethod *body = overrides [i * 2 + 1];
3683 if (mono_class_get_generic_type_definition (body->klass) != mono_class_get_generic_type_definition (class)) {
3684 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method belongs to a different class than the declared one"));
3688 if (!(body->flags & METHOD_ATTRIBUTE_VIRTUAL) || (body->flags & METHOD_ATTRIBUTE_STATIC)) {
3689 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3690 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must not be static to override a base type"));
3692 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must be virtual to override a base type"));
3696 if (!(decl->flags & METHOD_ATTRIBUTE_VIRTUAL) || (decl->flags & METHOD_ATTRIBUTE_STATIC)) {
3697 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3698 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a static method in a base type"));
3700 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a non virtual method in a base type"));
3704 if (!mono_class_is_assignable_from_slow (decl->klass, class)) {
3705 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method overrides a class or interface that extended or implemented by this type"));
3712 * LOCKING: this is supposed to be called with the loader lock held.
3715 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
3719 MonoMethod **vtable;
3720 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3721 GPtrArray *ifaces = NULL;
3722 GHashTable *override_map = NULL;
3723 gboolean security_enabled = mono_is_security_manager_active ();
3725 gpointer class_iter;
3726 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3727 int first_non_interface_slot;
3729 GSList *virt_methods = NULL, *l;
3734 if (overrides && !verify_class_overrides (class, overrides, onum))
3737 ifaces = mono_class_get_implemented_interfaces (class, &error);
3738 if (!mono_error_ok (&error)) {
3739 char *name = mono_type_get_full_name (class);
3740 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)));
3742 mono_error_cleanup (&error);
3744 } else if (ifaces) {
3745 for (i = 0; i < ifaces->len; i++) {
3746 MonoClass *ic = g_ptr_array_index (ifaces, i);
3747 max_vtsize += ic->method.count;
3749 g_ptr_array_free (ifaces, TRUE);
3753 if (class->parent) {
3754 mono_class_init (class->parent);
3755 mono_class_setup_vtable (class->parent);
3757 if (class->parent->exception_type) {
3758 char *name = mono_type_get_full_name (class->parent);
3759 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Parent %s failed to load", name));
3764 max_vtsize += class->parent->vtable_size;
3765 cur_slot = class->parent->vtable_size;
3768 max_vtsize += class->method.count;
3770 vtable = alloca (sizeof (gpointer) * max_vtsize);
3771 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
3773 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3775 cur_slot = setup_interface_offsets (class, cur_slot);
3776 if (cur_slot == -1) /*setup_interface_offsets fails the type.*/
3779 max_iid = class->max_interface_id;
3780 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
3782 /* Optimized version for generic instances */
3783 if (class->generic_class) {
3785 MonoClass *gklass = class->generic_class->container_class;
3788 mono_class_setup_vtable (gklass);
3789 if (gklass->exception_type != MONO_EXCEPTION_NONE) {
3790 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3794 tmp = mono_class_alloc0 (class, sizeof (gpointer) * gklass->vtable_size);
3795 class->vtable_size = gklass->vtable_size;
3796 for (i = 0; i < gklass->vtable_size; ++i)
3797 if (gklass->vtable [i]) {
3798 MonoMethod *inflated = mono_class_inflate_generic_method_full_checked (gklass->vtable [i], class, mono_class_get_context (class), &error);
3799 if (!mono_error_ok (&error)) {
3800 char *err_msg = g_strdup_printf ("Could not inflate method due to %s", mono_error_get_message (&error));
3801 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
3803 mono_error_cleanup (&error);
3807 tmp [i]->slot = gklass->vtable [i]->slot;
3809 mono_memory_barrier ();
3810 class->vtable = tmp;
3812 /* Have to set method->slot for abstract virtual methods */
3813 if (class->methods && gklass->methods) {
3814 for (i = 0; i < class->method.count; ++i)
3815 if (class->methods [i]->slot == -1)
3816 class->methods [i]->slot = gklass->methods [i]->slot;
3822 if (class->parent && class->parent->vtable_size) {
3823 MonoClass *parent = class->parent;
3826 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
3828 // Also inherit parent interface vtables, just as a starting point.
3829 // This is needed otherwise bug-77127.exe fails when the property methods
3830 // have different names in the iterface and the class, because for child
3831 // classes the ".override" information is not used anymore.
3832 for (i = 0; i < parent->interface_offsets_count; i++) {
3833 MonoClass *parent_interface = parent->interfaces_packed [i];
3834 int interface_offset = mono_class_interface_offset (class, parent_interface);
3835 /*FIXME this is now dead code as this condition will never hold true.
3836 Since interface offsets are inherited then the offset of an interface implemented
3837 by a parent will never be the out of it's vtable boundary.
3839 if (interface_offset >= parent->vtable_size) {
3840 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
3843 mono_class_setup_methods (parent_interface); /*FIXME Just kill this whole chunk of dead code*/
3844 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
3845 for (j = 0; j < parent_interface->method.count && !class->exception_type; j++) {
3846 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
3847 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
3848 parent_interface_offset + j, parent_interface_offset, j,
3849 interface_offset + j, interface_offset, j));
3856 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
3857 /* override interface methods */
3858 for (i = 0; i < onum; i++) {
3859 MonoMethod *decl = overrides [i*2];
3860 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
3862 dslot = mono_method_get_vtable_slot (decl);
3864 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3868 dslot += mono_class_interface_offset (class, decl->klass);
3869 vtable [dslot] = overrides [i*2 + 1];
3870 vtable [dslot]->slot = dslot;
3872 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3874 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
3876 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3877 mono_security_core_clr_check_override (class, vtable [dslot], decl);
3880 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
3881 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
3884 * Create a list of virtual methods to avoid calling
3885 * mono_class_get_virtual_methods () which is slow because of the metadata
3889 gpointer iter = NULL;
3892 virt_methods = NULL;
3893 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
3894 virt_methods = g_slist_prepend (virt_methods, cm);
3896 if (class->exception_type)
3900 // Loop on all implemented interfaces...
3901 for (i = 0; i < class->interface_offsets_count; i++) {
3902 MonoClass *parent = class->parent;
3904 gboolean interface_is_explicitly_implemented_by_class;
3907 ic = class->interfaces_packed [i];
3908 ic_offset = mono_class_interface_offset (class, ic);
3910 mono_class_setup_methods (ic);
3911 if (ic->exception_type)
3914 // Check if this interface is explicitly implemented (instead of just inherited)
3915 if (parent != NULL) {
3916 int implemented_interfaces_index;
3917 interface_is_explicitly_implemented_by_class = FALSE;
3918 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
3919 if (ic == class->interfaces [implemented_interfaces_index]) {
3920 interface_is_explicitly_implemented_by_class = TRUE;
3925 interface_is_explicitly_implemented_by_class = TRUE;
3928 // Loop on all interface methods...
3929 for (im_index = 0; im_index < ic->method.count; im_index++) {
3930 MonoMethod *im = ic->methods [im_index];
3931 int im_slot = ic_offset + im->slot;
3932 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
3934 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3937 // If there is an explicit implementation, just use it right away,
3938 // otherwise look for a matching method
3939 if (override_im == NULL) {
3944 // First look for a suitable method among the class methods
3946 for (l = virt_methods; l; l = l->next) {
3948 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)));
3949 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
3950 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
3951 vtable [im_slot] = cm;
3952 /* Why do we need this? */
3957 TRACE_INTERFACE_VTABLE (printf ("\n"));
3958 if (class->exception_type) /*Might be set by check_interface_method_override*/
3962 // If the slot is still empty, look in all the inherited virtual methods...
3963 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
3964 MonoClass *parent = class->parent;
3965 // Reverse order, so that last added methods are preferred
3966 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
3967 MonoMethod *cm = parent->vtable [cm_index];
3969 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));
3970 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
3971 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
3972 vtable [im_slot] = cm;
3973 /* Why do we need this? */
3979 if (class->exception_type) /*Might be set by check_interface_method_override*/
3981 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
3985 g_assert (vtable [im_slot] == override_im);
3990 // If the class is not abstract, check that all its interface slots are full.
3991 // The check is done here and not directly at the end of the loop above because
3992 // it can happen (for injected generic array interfaces) that the same slot is
3993 // processed multiple times (those interfaces have overlapping slots), and it
3994 // will not always be the first pass the one that fills the slot.
3995 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3996 for (i = 0; i < class->interface_offsets_count; i++) {
4000 ic = class->interfaces_packed [i];
4001 ic_offset = mono_class_interface_offset (class, ic);
4003 for (im_index = 0; im_index < ic->method.count; im_index++) {
4004 MonoMethod *im = ic->methods [im_index];
4005 int im_slot = ic_offset + im->slot;
4007 if (im->flags & METHOD_ATTRIBUTE_STATIC)
4010 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
4011 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
4012 if (vtable [im_slot] == NULL) {
4013 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
4020 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
4022 for (l = virt_methods; l; l = l->next) {
4025 * If the method is REUSE_SLOT, we must check in the
4026 * base class for a method to override.
4028 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
4030 for (k = class->parent; k ; k = k->parent) {
4035 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
4036 MonoMethodSignature *cmsig, *m1sig;
4038 cmsig = mono_method_signature (cm);
4039 m1sig = mono_method_signature (m1);
4041 if (!cmsig || !m1sig) {
4042 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4046 if (!strcmp(cm->name, m1->name) &&
4047 mono_metadata_signature_equal (cmsig, m1sig)) {
4049 /* CAS - SecurityAction.InheritanceDemand */
4050 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
4051 mono_secman_inheritancedemand_method (cm, m1);
4054 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4055 mono_security_core_clr_check_override (class, cm, m1);
4057 slot = mono_method_get_vtable_slot (m1);
4061 g_assert (cm->slot < max_vtsize);
4063 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4064 g_hash_table_insert (override_map, m1, cm);
4068 if (k->exception_type)
4078 /*Non final newslot methods must be given a non-interface vtable slot*/
4079 if ((cm->flags & METHOD_ATTRIBUTE_NEW_SLOT) && !(cm->flags & METHOD_ATTRIBUTE_FINAL) && cm->slot >= 0)
4083 cm->slot = cur_slot++;
4085 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
4086 vtable [cm->slot] = cm;
4089 /* override non interface methods */
4090 for (i = 0; i < onum; i++) {
4091 MonoMethod *decl = overrides [i*2];
4092 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
4093 g_assert (decl->slot != -1);
4094 vtable [decl->slot] = overrides [i*2 + 1];
4095 overrides [i * 2 + 1]->slot = decl->slot;
4097 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4098 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
4100 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4101 mono_security_core_clr_check_override (class, vtable [decl->slot], decl);
4106 * If a method occupies more than one place in the vtable, and it is
4107 * overriden, then change the other occurances too.
4110 for (i = 0; i < max_vtsize; ++i)
4112 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
4117 g_hash_table_destroy (override_map);
4118 override_map = NULL;
4121 g_slist_free (virt_methods);
4122 virt_methods = NULL;
4124 /* Ensure that all vtable slots are filled with concrete instance methods */
4125 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
4126 for (i = 0; i < cur_slot; ++i) {
4127 if (vtable [i] == NULL || (vtable [i]->flags & (METHOD_ATTRIBUTE_ABSTRACT | METHOD_ATTRIBUTE_STATIC))) {
4128 char *type_name = mono_type_get_full_name (class);
4129 char *method_name = vtable [i] ? mono_method_full_name (vtable [i], TRUE) : g_strdup ("none");
4130 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));
4132 g_free (method_name);
4138 if (class->generic_class) {
4139 MonoClass *gklass = class->generic_class->container_class;
4141 mono_class_init (gklass);
4143 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
4145 /* Check that the vtable_size value computed in mono_class_init () is correct */
4146 if (class->vtable_size)
4147 g_assert (cur_slot == class->vtable_size);
4148 class->vtable_size = cur_slot;
4151 /* Try to share the vtable with our parent. */
4152 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
4153 mono_memory_barrier ();
4154 class->vtable = class->parent->vtable;
4156 MonoMethod **tmp = mono_class_alloc0 (class, sizeof (gpointer) * class->vtable_size);
4157 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
4158 mono_memory_barrier ();
4159 class->vtable = tmp;
4162 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
4163 if (mono_print_vtable) {
4166 print_implemented_interfaces (class);
4168 for (i = 0; i <= max_iid; i++)
4169 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
4172 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
4173 class->vtable_size, icount);
4175 for (i = 0; i < cur_slot; ++i) {
4180 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
4181 mono_method_full_name (cm, TRUE));
4187 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
4188 class->name, max_iid);
4190 for (i = 0; i < class->interface_count; i++) {
4191 ic = class->interfaces [i];
4192 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
4193 mono_class_interface_offset (class, ic),
4194 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4197 for (k = class->parent; k ; k = k->parent) {
4198 for (i = 0; i < k->interface_count; i++) {
4199 ic = k->interfaces [i];
4200 printf (" parent slot offset: %03d, method count: %03d, iid: %03d %s\n",
4201 mono_class_interface_offset (class, ic),
4202 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4208 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
4213 char *name = mono_type_get_full_name (class);
4214 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("VTable setup of type %s failed", name));
4217 g_hash_table_destroy (override_map);
4219 g_slist_free (virt_methods);
4224 * mono_method_get_vtable_slot:
4226 * Returns method->slot, computing it if neccesary. Return -1 on failure.
4227 * LOCKING: Acquires the loader lock.
4229 * FIXME Use proper MonoError machinery here.
4232 mono_method_get_vtable_slot (MonoMethod *method)
4234 if (method->slot == -1) {
4235 mono_class_setup_vtable (method->klass);
4236 if (method->klass->exception_type)
4238 g_assert (method->slot != -1);
4240 return method->slot;
4244 * mono_method_get_vtable_index:
4247 * Returns the index into the runtime vtable to access the method or,
4248 * in the case of a virtual generic method, the virtual generic method
4249 * thunk. Returns -1 on failure.
4251 * FIXME Use proper MonoError machinery here.
4254 mono_method_get_vtable_index (MonoMethod *method)
4256 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
4257 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
4258 if (imethod->declaring->is_generic)
4259 return mono_method_get_vtable_slot (imethod->declaring);
4261 return mono_method_get_vtable_slot (method);
4264 static MonoMethod *default_ghc = NULL;
4265 static MonoMethod *default_finalize = NULL;
4266 static int finalize_slot = -1;
4267 static int ghc_slot = -1;
4270 initialize_object_slots (MonoClass *class)
4275 if (class == mono_defaults.object_class) {
4276 mono_class_setup_vtable (class);
4277 for (i = 0; i < class->vtable_size; ++i) {
4278 MonoMethod *cm = class->vtable [i];
4280 if (!strcmp (cm->name, "GetHashCode"))
4282 else if (!strcmp (cm->name, "Finalize"))
4286 g_assert (ghc_slot > 0);
4287 default_ghc = class->vtable [ghc_slot];
4289 g_assert (finalize_slot > 0);
4290 default_finalize = class->vtable [finalize_slot];
4295 MonoMethod *array_method;
4297 } GenericArrayMethodInfo;
4299 static int generic_array_method_num = 0;
4300 static GenericArrayMethodInfo *generic_array_method_info = NULL;
4303 generic_array_methods (MonoClass *class)
4305 int i, count_generic = 0;
4306 GList *list = NULL, *tmp;
4307 if (generic_array_method_num)
4308 return generic_array_method_num;
4309 mono_class_setup_methods (class->parent); /*This is setting up System.Array*/
4310 g_assert (!class->parent->exception_type); /*So hitting this assert is a huge problem*/
4311 for (i = 0; i < class->parent->method.count; i++) {
4312 MonoMethod *m = class->parent->methods [i];
4313 if (!strncmp (m->name, "InternalArray__", 15)) {
4315 list = g_list_prepend (list, m);
4318 list = g_list_reverse (list);
4319 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
4321 for (tmp = list; tmp; tmp = tmp->next) {
4322 const char *mname, *iname;
4324 MonoMethod *m = tmp->data;
4325 generic_array_method_info [i].array_method = m;
4326 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
4327 iname = "System.Collections.Generic.ICollection`1.";
4328 mname = m->name + 27;
4329 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
4330 iname = "System.Collections.Generic.IEnumerable`1.";
4331 mname = m->name + 27;
4332 } else if (!strncmp (m->name, "InternalArray__", 15)) {
4333 iname = "System.Collections.Generic.IList`1.";
4334 mname = m->name + 15;
4336 g_assert_not_reached ();
4339 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
4340 strcpy (name, iname);
4341 strcpy (name + strlen (iname), mname);
4342 generic_array_method_info [i].name = name;
4345 /*g_print ("array generic methods: %d\n", count_generic);*/
4347 generic_array_method_num = count_generic;
4349 return generic_array_method_num;
4353 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
4355 MonoGenericContext tmp_context;
4358 tmp_context.class_inst = NULL;
4359 tmp_context.method_inst = iface->generic_class->context.class_inst;
4360 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
4362 for (i = 0; i < generic_array_method_num; i++) {
4363 MonoMethod *m = generic_array_method_info [i].array_method;
4364 MonoMethod *inflated;
4366 inflated = mono_class_inflate_generic_method (m, &tmp_context);
4367 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
4372 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
4374 int len = strlen (s1) + strlen (s2) + 2;
4375 char *s = mono_image_alloc (image, len);
4378 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
4379 g_assert (result == len - 1);
4385 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
4387 gpointer exception_data = NULL;
4389 switch (error->exception_type) {
4390 case MONO_EXCEPTION_TYPE_LOAD:
4391 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
4394 case MONO_EXCEPTION_MISSING_METHOD:
4395 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
4398 case MONO_EXCEPTION_MISSING_FIELD: {
4399 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
4400 const char *class_name;
4403 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
4405 class_name = error->klass->name;
4407 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
4410 g_free ((void*)class_name);
4414 case MONO_EXCEPTION_FILE_NOT_FOUND: {
4417 if (error->ref_only)
4418 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.";
4420 msg = "Could not load file or assembly '%s' or one of its dependencies.";
4422 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
4426 case MONO_EXCEPTION_BAD_IMAGE:
4427 exception_data = error->msg;
4431 g_assert_not_reached ();
4434 mono_class_set_failure (class, error->exception_type, exception_data);
4439 * @class: the class to initialize
4441 * Compute the instance_size, class_size and other infos that cannot be
4442 * computed at mono_class_get() time. Also compute vtable_size if possible.
4443 * Returns TRUE on success or FALSE if there was a problem in loading
4444 * the type (incorrect assemblies, missing assemblies, methods, etc).
4446 * LOCKING: Acquires the loader lock.
4449 mono_class_init (MonoClass *class)
4452 MonoCachedClassInfo cached_info;
4453 gboolean has_cached_info;
4457 /* Double-checking locking pattern */
4459 return class->exception_type == MONO_EXCEPTION_NONE;
4461 /*g_print ("Init class %s\n", class->name);*/
4463 /* We do everything inside the lock to prevent races */
4464 mono_loader_lock ();
4466 if (class->inited) {
4467 mono_loader_unlock ();
4468 /* Somebody might have gotten in before us */
4469 return class->exception_type == MONO_EXCEPTION_NONE;
4472 if (class->init_pending) {
4473 mono_loader_unlock ();
4474 /* this indicates a cyclic dependency */
4475 g_error ("pending init %s.%s\n", class->name_space, class->name);
4478 class->init_pending = 1;
4480 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
4481 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
4486 if (class->byval_arg.type == MONO_TYPE_ARRAY || class->byval_arg.type == MONO_TYPE_SZARRAY) {
4487 MonoClass *element_class = class->element_class;
4488 if (!element_class->inited)
4489 mono_class_init (element_class);
4490 if (element_class->exception_type != MONO_EXCEPTION_NONE) {
4491 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4496 /* CAS - SecurityAction.InheritanceDemand */
4497 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
4498 mono_secman_inheritancedemand_class (class, class->parent);
4501 mono_stats.initialized_class_count++;
4503 if (class->generic_class && !class->generic_class->is_dynamic) {
4504 MonoClass *gklass = class->generic_class->container_class;
4506 mono_stats.generic_class_count++;
4508 class->method = gklass->method;
4509 class->field = gklass->field;
4511 mono_class_init (gklass);
4512 // FIXME: Why is this needed ?
4513 if (!gklass->exception_type)
4514 mono_class_setup_methods (gklass);
4515 if (gklass->exception_type) {
4516 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Generic Type Defintion failed to init"));
4520 if (MONO_CLASS_IS_INTERFACE (class))
4521 class->interface_id = mono_get_unique_iid (class);
4524 if (class->parent && !class->parent->inited)
4525 mono_class_init (class->parent);
4527 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
4529 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
4530 class->nested_classes_inited = TRUE;
4533 * Computes the size used by the fields, and their locations
4535 if (has_cached_info) {
4536 class->instance_size = cached_info.instance_size;
4537 class->sizes.class_size = cached_info.class_size;
4538 class->packing_size = cached_info.packing_size;
4539 class->min_align = cached_info.min_align;
4540 class->blittable = cached_info.blittable;
4541 class->has_references = cached_info.has_references;
4542 class->has_static_refs = cached_info.has_static_refs;
4543 class->no_special_static_fields = cached_info.no_special_static_fields;
4546 if (!class->size_inited){
4547 mono_class_setup_fields (class);
4548 if (class->exception_type || mono_loader_get_last_error ())
4552 /* Initialize arrays */
4554 class->method.count = 3 + (class->rank > 1? 2: 1);
4556 if (class->interface_count) {
4557 int count_generic = generic_array_methods (class);
4558 class->method.count += class->interface_count * count_generic;
4562 mono_class_setup_supertypes (class);
4565 initialize_object_slots (class);
4568 * Initialize the rest of the data without creating a generic vtable if possible.
4569 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
4570 * also avoid computing a generic vtable.
4572 if (has_cached_info) {
4574 class->vtable_size = cached_info.vtable_size;
4575 class->has_finalize = cached_info.has_finalize;
4576 class->ghcimpl = cached_info.ghcimpl;
4577 class->has_cctor = cached_info.has_cctor;
4578 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
4579 static int szarray_vtable_size = 0;
4582 if (!szarray_vtable_size) {
4583 mono_class_setup_vtable (class);
4584 szarray_vtable_size = class->vtable_size;
4586 class->vtable_size = szarray_vtable_size;
4588 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
4589 MonoClass *gklass = class->generic_class->container_class;
4591 /* Generic instance case */
4592 class->ghcimpl = gklass->ghcimpl;
4593 class->has_finalize = gklass->has_finalize;
4594 class->has_cctor = gklass->has_cctor;
4596 mono_class_setup_vtable (gklass);
4597 if (gklass->exception_type) {
4598 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4602 class->vtable_size = gklass->vtable_size;
4606 /* ghcimpl is not currently used
4608 if (class->parent) {
4609 MonoMethod *cmethod = class->vtable [ghc_slot];
4610 if (cmethod->is_inflated)
4611 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4612 if (cmethod == default_ghc) {
4618 /* Interfaces and valuetypes are not supposed to have finalizers */
4619 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
4620 MonoMethod *cmethod = NULL;
4622 if (class->parent && class->parent->has_finalize) {
4623 class->has_finalize = 1;
4625 if (class->type_token) {
4626 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
4627 } else if (class->parent) {
4628 /* FIXME: Optimize this */
4629 mono_class_setup_vtable (class);
4630 if (class->exception_type || mono_loader_get_last_error ())
4632 cmethod = class->vtable [finalize_slot];
4636 /* Check that this is really the finalizer method */
4637 mono_class_setup_vtable (class);
4638 if (class->exception_type || mono_loader_get_last_error ())
4641 g_assert (class->vtable_size > finalize_slot);
4643 class->has_finalize = 0;
4644 if (class->parent) {
4645 cmethod = class->vtable [finalize_slot];
4647 if (cmethod->is_inflated)
4648 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4649 if (cmethod != default_finalize) {
4650 class->has_finalize = 1;
4657 /* C# doesn't allow interfaces to have cctors */
4658 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
4659 MonoMethod *cmethod = NULL;
4661 if (class->type_token) {
4662 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
4663 /* The find_method function ignores the 'flags' argument */
4664 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
4665 class->has_cctor = 1;
4667 mono_class_setup_methods (class);
4668 if (class->exception_type)
4671 for (i = 0; i < class->method.count; ++i) {
4672 MonoMethod *method = class->methods [i];
4673 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
4674 (strcmp (".cctor", method->name) == 0)) {
4675 class->has_cctor = 1;
4683 if (class->parent) {
4684 /* This will compute class->parent->vtable_size for some classes */
4685 mono_class_init (class->parent);
4686 if (class->parent->exception_type) {
4687 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4690 if (mono_loader_get_last_error ())
4692 if (!class->parent->vtable_size) {
4693 /* FIXME: Get rid of this somehow */
4694 mono_class_setup_vtable (class->parent);
4695 if (class->parent->exception_type) {
4696 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4699 if (mono_loader_get_last_error ())
4702 setup_interface_offsets (class, class->parent->vtable_size);
4704 setup_interface_offsets (class, 0);
4707 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4708 mono_security_core_clr_check_inheritance (class);
4710 if (mono_loader_get_last_error ()) {
4711 if (class->exception_type == MONO_EXCEPTION_NONE) {
4712 set_failure_from_loader_error (class, mono_loader_get_last_error ());
4714 mono_loader_clear_error ();
4720 /* Because of the double-checking locking pattern */
4721 mono_memory_barrier ();
4723 class->init_pending = 0;
4725 mono_loader_unlock ();
4727 if (mono_debugger_class_init_func)
4728 mono_debugger_class_init_func (class);
4730 return class->exception_type == MONO_EXCEPTION_NONE;
4734 mono_is_corlib_image (MonoImage *image)
4736 /* FIXME: allow the dynamic case for our compilers and with full trust */
4738 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
4740 return image == mono_defaults.corlib;
4744 * LOCKING: this assumes the loader lock is held
4747 mono_class_setup_mono_type (MonoClass *class)
4749 const char *name = class->name;
4750 const char *nspace = class->name_space;
4751 gboolean is_corlib = mono_is_corlib_image (class->image);
4753 class->this_arg.byref = 1;
4754 class->this_arg.data.klass = class;
4755 class->this_arg.type = MONO_TYPE_CLASS;
4756 class->byval_arg.data.klass = class;
4757 class->byval_arg.type = MONO_TYPE_CLASS;
4759 if (is_corlib && !strcmp (nspace, "System")) {
4760 if (!strcmp (name, "ValueType")) {
4762 * do not set the valuetype bit for System.ValueType.
4763 * class->valuetype = 1;
4765 class->blittable = TRUE;
4766 } else if (!strcmp (name, "Enum")) {
4768 * do not set the valuetype bit for System.Enum.
4769 * class->valuetype = 1;
4771 class->valuetype = 0;
4772 class->enumtype = 0;
4773 } else if (!strcmp (name, "Object")) {
4774 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
4775 } else if (!strcmp (name, "String")) {
4776 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
4777 } else if (!strcmp (name, "TypedReference")) {
4778 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
4782 if (class->valuetype) {
4783 int t = MONO_TYPE_VALUETYPE;
4785 if (is_corlib && !strcmp (nspace, "System")) {
4788 if (!strcmp (name, "Boolean")) {
4789 t = MONO_TYPE_BOOLEAN;
4790 } else if (!strcmp(name, "Byte")) {
4792 class->blittable = TRUE;
4796 if (!strcmp (name, "Char")) {
4801 if (!strcmp (name, "Double")) {
4803 class->blittable = TRUE;
4807 if (!strcmp (name, "Int32")) {
4809 class->blittable = TRUE;
4810 } else if (!strcmp(name, "Int16")) {
4812 class->blittable = TRUE;
4813 } else if (!strcmp(name, "Int64")) {
4815 class->blittable = TRUE;
4816 } else if (!strcmp(name, "IntPtr")) {
4818 class->blittable = TRUE;
4822 if (!strcmp (name, "Single")) {
4824 class->blittable = TRUE;
4825 } else if (!strcmp(name, "SByte")) {
4827 class->blittable = TRUE;
4831 if (!strcmp (name, "UInt32")) {
4833 class->blittable = TRUE;
4834 } else if (!strcmp(name, "UInt16")) {
4836 class->blittable = TRUE;
4837 } else if (!strcmp(name, "UInt64")) {
4839 class->blittable = TRUE;
4840 } else if (!strcmp(name, "UIntPtr")) {
4842 class->blittable = TRUE;
4846 if (!strcmp (name, "TypedReference")) {
4847 t = MONO_TYPE_TYPEDBYREF;
4848 class->blittable = TRUE;
4852 if (!strcmp (name, "Void")) {
4860 class->this_arg.type = class->byval_arg.type = t;
4863 if (MONO_CLASS_IS_INTERFACE (class))
4864 class->interface_id = mono_get_unique_iid (class);
4869 * COM initialization (using mono_init_com_types) is delayed until needed.
4870 * However when a [ComImport] attribute is present on a type it will trigger
4871 * the initialization. This is not a problem unless the BCL being executed
4872 * lacks the types that COM depends on (e.g. Variant on Silverlight).
4875 init_com_from_comimport (MonoClass *class)
4877 /* we don't always allow COM initialization under the CoreCLR (e.g. Moonlight does not require it) */
4878 if ((mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)) {
4879 /* but some other CoreCLR user could requires it for their platform (i.e. trusted) code */
4880 if (!mono_security_core_clr_determine_platform_image (class->image)) {
4881 /* but it can not be made available for application (i.e. user code) since all COM calls
4882 * are considered native calls. In this case we fail with a TypeLoadException (just like
4883 * Silverlight 2 does */
4884 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4888 /* FIXME : we should add an extra checks to ensure COM can be initialized properly before continuing */
4889 mono_init_com_types ();
4893 * LOCKING: this assumes the loader lock is held
4896 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
4898 gboolean system_namespace;
4899 gboolean is_corlib = mono_is_corlib_image (class->image);
4901 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
4903 /* if root of the hierarchy */
4904 if (system_namespace && !strcmp (class->name, "Object")) {
4905 class->parent = NULL;
4906 class->instance_size = sizeof (MonoObject);
4909 if (!strcmp (class->name, "<Module>")) {
4910 class->parent = NULL;
4911 class->instance_size = 0;
4915 if (!MONO_CLASS_IS_INTERFACE (class)) {
4916 /* Imported COM Objects always derive from __ComObject. */
4917 if (MONO_CLASS_IS_IMPORT (class)) {
4918 init_com_from_comimport (class);
4919 if (parent == mono_defaults.object_class)
4920 parent = mono_defaults.com_object_class;
4923 /* set the parent to something useful and safe, but mark the type as broken */
4924 parent = mono_defaults.object_class;
4925 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4928 class->parent = parent;
4930 if (parent->generic_class && !parent->name) {
4932 * If the parent is a generic instance, we may get
4933 * called before it is fully initialized, especially
4934 * before it has its name.
4939 class->marshalbyref = parent->marshalbyref;
4940 class->contextbound = parent->contextbound;
4941 class->delegate = parent->delegate;
4942 if (MONO_CLASS_IS_IMPORT (class))
4943 class->is_com_object = 1;
4945 class->is_com_object = parent->is_com_object;
4947 if (system_namespace) {
4948 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
4949 class->marshalbyref = 1;
4951 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
4952 class->contextbound = 1;
4954 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
4955 class->delegate = 1;
4958 if (class->parent->enumtype || (mono_is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
4959 (strcmp (class->parent->name_space, "System") == 0)))
4960 class->valuetype = 1;
4961 if (mono_is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
4962 class->valuetype = class->enumtype = 1;
4964 /*class->enumtype = class->parent->enumtype; */
4965 mono_class_setup_supertypes (class);
4967 /* initialize com types if COM interfaces are present */
4968 if (MONO_CLASS_IS_IMPORT (class))
4969 init_com_from_comimport (class);
4970 class->parent = NULL;
4976 * mono_class_setup_supertypes:
4979 * Build the data structure needed to make fast type checks work.
4980 * This currently sets two fields in @class:
4981 * - idepth: distance between @class and System.Object in the type
4983 * - supertypes: array of classes: each element has a class in the hierarchy
4984 * starting from @class up to System.Object
4986 * LOCKING: this assumes the loader lock is held
4989 mono_class_setup_supertypes (MonoClass *class)
4993 if (class->supertypes)
4996 if (class->parent && !class->parent->supertypes)
4997 mono_class_setup_supertypes (class->parent);
4999 class->idepth = class->parent->idepth + 1;
5003 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
5004 class->supertypes = mono_class_alloc0 (class, sizeof (MonoClass *) * ms);
5006 if (class->parent) {
5007 class->supertypes [class->idepth - 1] = class;
5008 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
5010 class->supertypes [0] = class;
5015 * mono_class_create_from_typedef:
5016 * @image: image where the token is valid
5017 * @type_token: typedef token
5019 * Create the MonoClass* representing the specified type token.
5020 * @type_token must be a TypeDef token.
5022 * FIXME: don't return NULL on failure, just the the caller figure it out.
5025 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
5027 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5028 MonoClass *class, *parent = NULL;
5029 guint32 cols [MONO_TYPEDEF_SIZE];
5030 guint32 cols_next [MONO_TYPEDEF_SIZE];
5031 guint tidx = mono_metadata_token_index (type_token);
5032 MonoGenericContext *context = NULL;
5033 const char *name, *nspace;
5035 MonoClass **interfaces;
5036 guint32 field_last, method_last;
5037 guint32 nesting_tokeen;
5039 if (mono_metadata_token_table (type_token) != MONO_TABLE_TYPEDEF || tidx > tt->rows)
5042 mono_loader_lock ();
5044 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
5045 mono_loader_unlock ();
5046 return class->exception_type ? NULL : class;
5049 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5051 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5052 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5054 class = mono_image_alloc0 (image, sizeof (MonoClass));
5057 class->name_space = nspace;
5059 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
5061 class->image = image;
5062 class->type_token = type_token;
5063 class->flags = cols [MONO_TYPEDEF_FLAGS];
5065 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
5067 classes_size += sizeof (MonoClass);
5070 * Check whether we're a generic type definition.
5072 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
5073 if (class->generic_container) {
5074 class->is_generic = 1;
5075 class->generic_container->owner.klass = class;
5076 context = &class->generic_container->context;
5079 if (cols [MONO_TYPEDEF_EXTENDS]) {
5081 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
5083 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
5084 /*WARNING: this must satisfy mono_metadata_type_hash*/
5085 class->this_arg.byref = 1;
5086 class->this_arg.data.klass = class;
5087 class->this_arg.type = MONO_TYPE_CLASS;
5088 class->byval_arg.data.klass = class;
5089 class->byval_arg.type = MONO_TYPE_CLASS;
5091 parent = mono_class_get_full (image, parent_token, context);
5093 if (parent == NULL){
5094 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load parent type"));
5095 mono_loader_unlock ();
5096 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5100 for (tmp = parent; tmp; tmp = tmp->parent) {
5102 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cycle found while resolving parent"));
5103 mono_loader_unlock ();
5104 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5110 mono_class_setup_parent (class, parent);
5112 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
5113 mono_class_setup_mono_type (class);
5116 * This might access class->byval_arg for recursion generated by generic constraints,
5117 * so it has to come after setup_mono_type ().
5119 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token))) {
5120 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
5121 if (!class->nested_in) {
5122 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load nestedin type"));
5123 mono_loader_unlock ();
5124 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5129 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
5133 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
5137 class->cast_class = class->element_class = class;
5139 if (!class->enumtype) {
5140 if (!mono_metadata_interfaces_from_typedef_full (
5141 image, type_token, &interfaces, &icount, FALSE, context)){
5142 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load interfaces"));
5143 mono_loader_unlock ();
5144 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5148 class->interfaces = interfaces;
5149 class->interface_count = icount;
5150 class->interfaces_inited = 1;
5153 /*g_print ("Load class %s\n", name);*/
5156 * Compute the field and method lists
5158 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
5159 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
5161 if (tt->rows > tidx){
5162 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
5163 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
5164 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
5166 field_last = image->tables [MONO_TABLE_FIELD].rows;
5167 method_last = image->tables [MONO_TABLE_METHOD].rows;
5170 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
5171 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
5172 class->field.count = field_last - class->field.first;
5174 class->field.count = 0;
5176 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
5177 class->method.count = method_last - class->method.first;
5179 class->method.count = 0;
5181 /* reserve space to store vector pointer in arrays */
5182 if (mono_is_corlib_image (image) && !strcmp (nspace, "System") && !strcmp (name, "Array")) {
5183 class->instance_size += 2 * sizeof (gpointer);
5184 g_assert (class->field.count == 0);
5187 if (class->enumtype) {
5188 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
5189 if (!enum_basetype) {
5190 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5191 mono_loader_unlock ();
5192 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5195 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
5199 * If we're a generic type definition, load the constraints.
5200 * We must do this after the class has been constructed to make certain recursive scenarios
5203 if (class->generic_container && !mono_metadata_load_generic_param_constraints_full (image, type_token, class->generic_container)){
5204 char *class_name = g_strdup_printf("%s.%s", class->name_space, class->name);
5205 char *error = concat_two_strings_with_zero (class->image, class_name, class->image->assembly_name);
5206 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, error);
5207 g_free (class_name);
5208 mono_loader_unlock ();
5209 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5213 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
5214 if (!strncmp (name, "Vector", 6))
5215 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");
5218 mono_loader_unlock ();
5220 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
5225 /** is klass Nullable<T>? */
5227 mono_class_is_nullable (MonoClass *klass)
5229 return klass->generic_class != NULL &&
5230 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
5234 /** if klass is T? return T */
5236 mono_class_get_nullable_param (MonoClass *klass)
5238 g_assert (mono_class_is_nullable (klass));
5239 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
5243 * Create the `MonoClass' for an instantiation of a generic type.
5244 * We only do this if we actually need it.
5247 mono_generic_class_get_class (MonoGenericClass *gclass)
5249 MonoClass *klass, *gklass;
5251 mono_loader_lock ();
5252 if (gclass->cached_class) {
5253 mono_loader_unlock ();
5254 return gclass->cached_class;
5257 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
5258 klass = gclass->cached_class;
5260 gklass = gclass->container_class;
5262 if (gklass->nested_in) {
5264 * FIXME: the nested type context should include everything the
5265 * nesting context should have, but it may also have additional
5266 * generic parameters...
5268 klass->nested_in = mono_class_inflate_generic_class (gklass->nested_in,
5269 mono_generic_class_get_context (gclass));
5272 klass->name = gklass->name;
5273 klass->name_space = gklass->name_space;
5275 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5277 klass->image = gklass->image;
5278 klass->flags = gklass->flags;
5279 klass->type_token = gklass->type_token;
5280 klass->field.count = gklass->field.count;
5282 klass->is_inflated = 1;
5283 klass->generic_class = gclass;
5285 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
5286 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
5287 klass->this_arg.byref = TRUE;
5288 klass->enumtype = gklass->enumtype;
5289 klass->valuetype = gklass->valuetype;
5291 klass->cast_class = klass->element_class = klass;
5293 if (mono_class_is_nullable (klass))
5294 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
5297 * We're not interested in the nested classes of a generic instance.
5298 * We use the generic type definition to look for nested classes.
5301 if (gklass->parent) {
5302 klass->parent = mono_class_inflate_generic_class (gklass->parent, mono_generic_class_get_context (gclass));
5306 mono_class_setup_parent (klass, klass->parent);
5308 if (klass->enumtype) {
5309 klass->cast_class = gklass->cast_class;
5310 klass->element_class = gklass->element_class;
5313 if (gclass->is_dynamic) {
5316 mono_class_setup_supertypes (klass);
5318 if (klass->enumtype) {
5320 * For enums, gklass->fields might not been set, but instance_size etc. is
5321 * already set in mono_reflection_create_internal_class (). For non-enums,
5322 * these will be computed normally in mono_class_layout_fields ().
5324 klass->instance_size = gklass->instance_size;
5325 klass->sizes.class_size = gklass->sizes.class_size;
5326 klass->size_inited = 1;
5330 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5332 inflated_classes ++;
5333 inflated_classes_size += sizeof (MonoClass);
5335 mono_loader_unlock ();
5341 make_generic_param_class (MonoGenericParam *param, MonoImage *image, gboolean is_mvar, MonoGenericParamInfo *pinfo)
5343 MonoClass *klass, **ptr;
5345 MonoGenericContainer *container = mono_generic_param_owner (param);
5349 image = mono_defaults.corlib;
5351 klass = mono_image_alloc0 (image, sizeof (MonoClass));
5352 classes_size += sizeof (MonoClass);
5355 klass->name = pinfo->name;
5357 int n = mono_generic_param_num (param);
5358 klass->name = mono_image_alloc0 (image, 16);
5359 sprintf ((char*)klass->name, "%d", n);
5364 MonoMethod *omethod = container->owner.method;
5365 klass->name_space = (omethod && omethod->klass) ? omethod->klass->name_space : "";
5367 MonoClass *oklass = container->owner.klass;
5368 klass->name_space = oklass ? oklass->name_space : "";
5371 klass->name_space = "";
5374 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5378 for (ptr = pinfo->constraints; ptr && *ptr; ptr++, count++)
5382 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (pinfo->constraints [0])) {
5383 klass->parent = pinfo->constraints [0];
5385 } else if (pinfo && pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
5386 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
5388 klass->parent = mono_defaults.object_class;
5391 if (count - pos > 0) {
5392 klass->interface_count = count - pos;
5393 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
5394 klass->interfaces_inited = TRUE;
5395 for (i = pos; i < count; i++)
5396 klass->interfaces [i - pos] = pinfo->constraints [i];
5399 klass->image = image;
5401 klass->inited = TRUE;
5402 klass->cast_class = klass->element_class = klass;
5403 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
5405 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5406 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
5407 klass->this_arg.byref = TRUE;
5409 /* We don't use type_token for VAR since only classes can use it (not arrays, pointer, VARs, etc) */
5410 klass->sizes.generic_param_token = pinfo ? pinfo->token : 0;
5412 /*Init these fields to sane values*/
5413 klass->min_align = 1;
5414 klass->instance_size = sizeof (gpointer);
5415 klass->size_inited = 1;
5417 mono_class_setup_supertypes (klass);
5419 if (count - pos > 0) {
5420 mono_class_setup_vtable (klass->parent);
5421 g_assert (!klass->parent->exception_type);
5422 setup_interface_offsets (klass, klass->parent->vtable_size);
5428 #define FAST_CACHE_SIZE 16
5429 static MonoClass *var_cache_fast [FAST_CACHE_SIZE];
5430 static MonoClass *mvar_cache_fast [FAST_CACHE_SIZE];
5431 static GHashTable *var_cache_slow;
5432 static GHashTable *mvar_cache_slow;
5435 get_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar)
5437 int n = mono_generic_param_num (param);
5440 if (n < FAST_CACHE_SIZE)
5441 return (is_mvar ? mvar_cache_fast : var_cache_fast) [n];
5442 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
5443 return ht ? g_hash_table_lookup (ht, GINT_TO_POINTER (n)) : NULL;
5447 set_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar, MonoClass *klass)
5449 int n = mono_generic_param_num (param);
5452 if (n < FAST_CACHE_SIZE) {
5453 (is_mvar ? mvar_cache_fast : var_cache_fast) [n] = klass;
5456 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
5458 ht = g_hash_table_new (NULL, NULL);
5460 mvar_cache_slow = ht;
5462 var_cache_slow = ht;
5465 g_hash_table_insert (ht, GINT_TO_POINTER (n), klass);
5469 * LOCKING: Acquires the loader lock.
5472 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
5474 MonoGenericContainer *container = mono_generic_param_owner (param);
5475 MonoGenericParamInfo *pinfo;
5478 mono_loader_lock ();
5481 pinfo = mono_generic_param_info (param);
5482 if (pinfo->pklass) {
5483 mono_loader_unlock ();
5484 return pinfo->pklass;
5490 klass = get_anon_gparam_class (param, is_mvar);
5492 mono_loader_unlock ();
5497 if (!image && container) {
5499 MonoMethod *method = container->owner.method;
5500 image = (method && method->klass) ? method->klass->image : NULL;
5502 MonoClass *klass = container->owner.klass;
5503 // FIXME: 'klass' should not be null
5504 // But, monodis creates GenericContainers without associating a owner to it
5505 image = klass ? klass->image : NULL;
5509 klass = make_generic_param_class (param, image, is_mvar, pinfo);
5511 mono_memory_barrier ();
5514 pinfo->pklass = klass;
5516 set_anon_gparam_class (param, is_mvar, klass);
5518 mono_loader_unlock ();
5520 /* FIXME: Should this go inside 'make_generic_param_klass'? */
5521 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5527 mono_ptr_class_get (MonoType *type)
5530 MonoClass *el_class;
5534 el_class = mono_class_from_mono_type (type);
5535 image = el_class->image;
5537 mono_loader_lock ();
5539 if (!image->ptr_cache)
5540 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5542 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
5543 mono_loader_unlock ();
5546 result = mono_image_alloc0 (image, sizeof (MonoClass));
5548 classes_size += sizeof (MonoClass);
5550 result->parent = NULL; /* no parent for PTR types */
5551 result->name_space = el_class->name_space;
5552 name = g_strdup_printf ("%s*", el_class->name);
5553 result->name = mono_image_strdup (image, name);
5556 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5558 result->image = el_class->image;
5559 result->inited = TRUE;
5560 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
5561 /* Can pointers get boxed? */
5562 result->instance_size = sizeof (gpointer);
5563 result->cast_class = result->element_class = el_class;
5564 result->blittable = TRUE;
5566 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
5567 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
5568 result->this_arg.byref = TRUE;
5570 mono_class_setup_supertypes (result);
5572 g_hash_table_insert (image->ptr_cache, el_class, result);
5574 mono_loader_unlock ();
5576 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5582 mono_fnptr_class_get (MonoMethodSignature *sig)
5585 static GHashTable *ptr_hash = NULL;
5587 /* FIXME: These should be allocate from a mempool as well, but which one ? */
5589 mono_loader_lock ();
5592 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5594 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
5595 mono_loader_unlock ();
5598 result = g_new0 (MonoClass, 1);
5600 result->parent = NULL; /* no parent for PTR types */
5601 result->name_space = "System";
5602 result->name = "MonoFNPtrFakeClass";
5604 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5606 result->image = mono_defaults.corlib; /* need to fix... */
5607 result->inited = TRUE;
5608 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
5609 /* Can pointers get boxed? */
5610 result->instance_size = sizeof (gpointer);
5611 result->cast_class = result->element_class = result;
5612 result->blittable = TRUE;
5614 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
5615 result->this_arg.data.method = result->byval_arg.data.method = sig;
5616 result->this_arg.byref = TRUE;
5617 result->blittable = TRUE;
5619 mono_class_setup_supertypes (result);
5621 g_hash_table_insert (ptr_hash, sig, result);
5623 mono_loader_unlock ();
5625 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5631 mono_class_from_mono_type (MonoType *type)
5633 switch (type->type) {
5634 case MONO_TYPE_OBJECT:
5635 return type->data.klass? type->data.klass: mono_defaults.object_class;
5636 case MONO_TYPE_VOID:
5637 return type->data.klass? type->data.klass: mono_defaults.void_class;
5638 case MONO_TYPE_BOOLEAN:
5639 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
5640 case MONO_TYPE_CHAR:
5641 return type->data.klass? type->data.klass: mono_defaults.char_class;
5643 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
5645 return type->data.klass? type->data.klass: mono_defaults.byte_class;
5647 return type->data.klass? type->data.klass: mono_defaults.int16_class;
5649 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
5651 return type->data.klass? type->data.klass: mono_defaults.int32_class;
5653 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
5655 return type->data.klass? type->data.klass: mono_defaults.int_class;
5657 return type->data.klass? type->data.klass: mono_defaults.uint_class;
5659 return type->data.klass? type->data.klass: mono_defaults.int64_class;
5661 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
5663 return type->data.klass? type->data.klass: mono_defaults.single_class;
5665 return type->data.klass? type->data.klass: mono_defaults.double_class;
5666 case MONO_TYPE_STRING:
5667 return type->data.klass? type->data.klass: mono_defaults.string_class;
5668 case MONO_TYPE_TYPEDBYREF:
5669 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
5670 case MONO_TYPE_ARRAY:
5671 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
5673 return mono_ptr_class_get (type->data.type);
5674 case MONO_TYPE_FNPTR:
5675 return mono_fnptr_class_get (type->data.method);
5676 case MONO_TYPE_SZARRAY:
5677 return mono_array_class_get (type->data.klass, 1);
5678 case MONO_TYPE_CLASS:
5679 case MONO_TYPE_VALUETYPE:
5680 return type->data.klass;
5681 case MONO_TYPE_GENERICINST:
5682 return mono_generic_class_get_class (type->data.generic_class);
5684 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
5685 case MONO_TYPE_MVAR:
5686 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
5688 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
5689 g_assert_not_reached ();
5696 * mono_type_retrieve_from_typespec
5697 * @image: context where the image is created
5698 * @type_spec: typespec token
5699 * @context: the generic context used to evaluate generic instantiations in
5702 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate, MonoError *error)
5704 MonoType *t = mono_type_create_from_typespec (image, type_spec);
5706 mono_error_init (error);
5707 *did_inflate = FALSE;
5710 char *name = mono_class_name_from_token (image, type_spec);
5711 char *assembly = mono_assembly_name_from_token (image, type_spec);
5712 mono_error_set_type_load_name (error, name, assembly, "Could not resolve typespec token %08x", type_spec);
5716 if (context && (context->class_inst || context->method_inst)) {
5717 MonoType *inflated = inflate_generic_type (NULL, t, context, error);
5719 if (!mono_error_ok (error))
5724 *did_inflate = TRUE;
5731 * mono_class_create_from_typespec
5732 * @image: context where the image is created
5733 * @type_spec: typespec token
5734 * @context: the generic context used to evaluate generic instantiations in
5737 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, MonoError *error)
5740 gboolean inflated = FALSE;
5741 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated, error);
5742 if (!mono_error_ok (error))
5744 ret = mono_class_from_mono_type (t);
5746 mono_metadata_free_type (t);
5751 * mono_bounded_array_class_get:
5752 * @element_class: element class
5753 * @rank: the dimension of the array class
5754 * @bounded: whenever the array has non-zero bounds
5756 * Returns: a class object describing the array with element type @element_type and
5760 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
5764 MonoClass *parent = NULL;
5765 GSList *list, *rootlist = NULL;
5768 gboolean corlib_type = FALSE;
5770 g_assert (rank <= 255);
5773 /* bounded only matters for one-dimensional arrays */
5776 image = eclass->image;
5778 if (rank == 1 && !bounded) {
5780 * This case is very frequent not just during compilation because of calls
5781 * from mono_class_from_mono_type (), mono_array_new (),
5782 * Array:CreateInstance (), etc, so use a separate cache + a separate lock.
5784 EnterCriticalSection (&image->szarray_cache_lock);
5785 if (!image->szarray_cache)
5786 image->szarray_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5787 class = g_hash_table_lookup (image->szarray_cache, eclass);
5788 LeaveCriticalSection (&image->szarray_cache_lock);
5792 mono_loader_lock ();
5794 mono_loader_lock ();
5796 if (!image->array_cache)
5797 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5799 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
5800 for (; list; list = list->next) {
5802 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
5803 mono_loader_unlock ();
5810 /* for the building corlib use System.Array from it */
5811 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
5812 parent = mono_class_from_name (image, "System", "Array");
5815 parent = mono_defaults.array_class;
5816 if (!parent->inited)
5817 mono_class_init (parent);
5820 class = mono_image_alloc0 (image, sizeof (MonoClass));
5822 class->image = image;
5823 class->name_space = eclass->name_space;
5824 nsize = strlen (eclass->name);
5825 name = g_malloc (nsize + 2 + rank + 1);
5826 memcpy (name, eclass->name, nsize);
5829 memset (name + nsize + 1, ',', rank - 1);
5831 name [nsize + rank] = '*';
5832 name [nsize + rank + bounded] = ']';
5833 name [nsize + rank + bounded + 1] = 0;
5834 class->name = mono_image_strdup (image, name);
5837 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
5839 classes_size += sizeof (MonoClass);
5841 class->type_token = 0;
5842 /* all arrays are marked serializable and sealed, bug #42779 */
5843 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED | TYPE_ATTRIBUTE_PUBLIC;
5844 class->parent = parent;
5845 class->instance_size = mono_class_instance_size (class->parent);
5847 if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
5848 if (!eclass->ref_info_handle || eclass->wastypebuilder) {
5849 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
5850 g_assert (eclass->ref_info_handle && !eclass->wastypebuilder);
5852 /* element_size -1 is ok as this is not an instantitable type*/
5853 class->sizes.element_size = -1;
5855 class->sizes.element_size = mono_class_array_element_size (eclass);
5857 mono_class_setup_supertypes (class);
5859 if (eclass->generic_class)
5860 mono_class_init (eclass);
5861 if (!eclass->size_inited)
5862 mono_class_setup_fields (eclass);
5863 if (eclass->exception_type) /*FIXME we fail the array type, but we have to let other fields be set.*/
5864 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5866 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
5870 if (eclass->enumtype)
5871 class->cast_class = eclass->element_class;
5873 class->cast_class = eclass;
5875 switch (class->cast_class->byval_arg.type) {
5877 class->cast_class = mono_defaults.byte_class;
5880 class->cast_class = mono_defaults.int16_class;
5883 #if SIZEOF_VOID_P == 4
5887 class->cast_class = mono_defaults.int32_class;
5890 #if SIZEOF_VOID_P == 8
5894 class->cast_class = mono_defaults.int64_class;
5898 class->element_class = eclass;
5900 if ((rank > 1) || bounded) {
5901 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
5902 class->byval_arg.type = MONO_TYPE_ARRAY;
5903 class->byval_arg.data.array = at;
5904 at->eklass = eclass;
5906 /* FIXME: complete.... */
5908 class->byval_arg.type = MONO_TYPE_SZARRAY;
5909 class->byval_arg.data.klass = eclass;
5911 class->this_arg = class->byval_arg;
5912 class->this_arg.byref = 1;
5917 class->generic_container = eclass->generic_container;
5919 if (rank == 1 && !bounded) {
5920 MonoClass *prev_class;
5922 EnterCriticalSection (&image->szarray_cache_lock);
5923 prev_class = g_hash_table_lookup (image->szarray_cache, eclass);
5925 /* Someone got in before us */
5928 g_hash_table_insert (image->szarray_cache, eclass, class);
5929 LeaveCriticalSection (&image->szarray_cache_lock);
5931 list = g_slist_append (rootlist, class);
5932 g_hash_table_insert (image->array_cache, eclass, list);
5935 mono_loader_unlock ();
5937 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
5943 * mono_array_class_get:
5944 * @element_class: element class
5945 * @rank: the dimension of the array class
5947 * Returns: a class object describing the array with element type @element_type and
5951 mono_array_class_get (MonoClass *eclass, guint32 rank)
5953 return mono_bounded_array_class_get (eclass, rank, FALSE);
5957 * mono_class_instance_size:
5960 * Returns: the size of an object instance
5963 mono_class_instance_size (MonoClass *klass)
5965 if (!klass->size_inited)
5966 mono_class_init (klass);
5968 return klass->instance_size;
5972 * mono_class_min_align:
5975 * Returns: minimm alignment requirements
5978 mono_class_min_align (MonoClass *klass)
5980 if (!klass->size_inited)
5981 mono_class_init (klass);
5983 return klass->min_align;
5987 * mono_class_value_size:
5990 * This function is used for value types, and return the
5991 * space and the alignment to store that kind of value object.
5993 * Returns: the size of a value of kind @klass
5996 mono_class_value_size (MonoClass *klass, guint32 *align)
6000 /* fixme: check disable, because we still have external revereces to
6001 * mscorlib and Dummy Objects
6003 /*g_assert (klass->valuetype);*/
6005 size = mono_class_instance_size (klass) - sizeof (MonoObject);
6008 *align = klass->min_align;
6014 * mono_class_data_size:
6017 * Returns: the size of the static class data
6020 mono_class_data_size (MonoClass *klass)
6023 mono_class_init (klass);
6025 /* in arrays, sizes.class_size is unioned with element_size
6026 * and arrays have no static fields
6030 return klass->sizes.class_size;
6034 * Auxiliary routine to mono_class_get_field
6036 * Takes a field index instead of a field token.
6038 static MonoClassField *
6039 mono_class_get_field_idx (MonoClass *class, int idx)
6041 mono_class_setup_fields_locking (class);
6042 if (class->exception_type)
6046 if (class->image->uncompressed_metadata) {
6048 * class->field.first points to the FieldPtr table, while idx points into the
6049 * Field table, so we have to do a search.
6051 /*FIXME this is broken for types with multiple fields with the same name.*/
6052 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
6055 for (i = 0; i < class->field.count; ++i)
6056 if (mono_field_get_name (&class->fields [i]) == name)
6057 return &class->fields [i];
6058 g_assert_not_reached ();
6060 if (class->field.count) {
6061 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
6062 return &class->fields [idx - class->field.first];
6066 class = class->parent;
6072 * mono_class_get_field:
6073 * @class: the class to lookup the field.
6074 * @field_token: the field token
6076 * Returns: A MonoClassField representing the type and offset of
6077 * the field, or a NULL value if the field does not belong to this
6081 mono_class_get_field (MonoClass *class, guint32 field_token)
6083 int idx = mono_metadata_token_index (field_token);
6085 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
6087 return mono_class_get_field_idx (class, idx - 1);
6091 * mono_class_get_field_from_name:
6092 * @klass: the class to lookup the field.
6093 * @name: the field name
6095 * Search the class @klass and it's parents for a field with the name @name.
6097 * Returns: the MonoClassField pointer of the named field or NULL
6100 mono_class_get_field_from_name (MonoClass *klass, const char *name)
6102 return mono_class_get_field_from_name_full (klass, name, NULL);
6106 * mono_class_get_field_from_name_full:
6107 * @klass: the class to lookup the field.
6108 * @name: the field name
6109 * @type: the type of the fields. This optional.
6111 * Search the class @klass and it's parents for a field with the name @name and type @type.
6113 * If @klass is an inflated generic type, the type comparison is done with the equivalent field
6114 * of its generic type definition.
6116 * Returns: the MonoClassField pointer of the named field or NULL
6119 mono_class_get_field_from_name_full (MonoClass *klass, const char *name, MonoType *type)
6123 mono_class_setup_fields_locking (klass);
6124 if (klass->exception_type)
6128 for (i = 0; i < klass->field.count; ++i) {
6129 MonoClassField *field = &klass->fields [i];
6131 if (strcmp (name, mono_field_get_name (field)) != 0)
6135 MonoType *field_type = mono_metadata_get_corresponding_field_from_generic_type_definition (field)->type;
6136 if (!mono_metadata_type_equal_full (type, field_type, TRUE))
6141 klass = klass->parent;
6147 * mono_class_get_field_token:
6148 * @field: the field we need the token of
6150 * Get the token of a field. Note that the tokesn is only valid for the image
6151 * the field was loaded from. Don't use this function for fields in dynamic types.
6153 * Returns: the token representing the field in the image it was loaded from.
6156 mono_class_get_field_token (MonoClassField *field)
6158 MonoClass *klass = field->parent;
6161 mono_class_setup_fields_locking (klass);
6162 if (klass->exception_type)
6166 for (i = 0; i < klass->field.count; ++i) {
6167 if (&klass->fields [i] == field) {
6168 int idx = klass->field.first + i + 1;
6170 if (klass->image->uncompressed_metadata)
6171 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
6172 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
6175 klass = klass->parent;
6178 g_assert_not_reached ();
6183 mono_field_get_index (MonoClassField *field)
6185 int index = field - field->parent->fields;
6187 g_assert (index >= 0 && index < field->parent->field.count);
6193 * mono_class_get_field_default_value:
6195 * Return the default value of the field as a pointer into the metadata blob.
6198 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
6201 guint32 constant_cols [MONO_CONSTANT_SIZE];
6203 MonoClass *klass = field->parent;
6205 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
6207 if (!klass->ext || !klass->ext->field_def_values) {
6208 mono_loader_lock ();
6209 mono_class_alloc_ext (klass);
6210 if (!klass->ext->field_def_values)
6211 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
6212 mono_loader_unlock ();
6215 field_index = mono_field_get_index (field);
6217 if (!klass->ext->field_def_values [field_index].data) {
6218 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
6220 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
6222 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6223 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
6224 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
6227 *def_type = klass->ext->field_def_values [field_index].def_type;
6228 return klass->ext->field_def_values [field_index].data;
6232 mono_property_get_index (MonoProperty *prop)
6234 int index = prop - prop->parent->ext->properties;
6236 g_assert (index >= 0 && index < prop->parent->ext->property.count);
6242 * mono_class_get_property_default_value:
6244 * Return the default value of the field as a pointer into the metadata blob.
6247 mono_class_get_property_default_value (MonoProperty *property, MonoTypeEnum *def_type)
6250 guint32 constant_cols [MONO_CONSTANT_SIZE];
6251 MonoClass *klass = property->parent;
6253 g_assert (property->attrs & PROPERTY_ATTRIBUTE_HAS_DEFAULT);
6255 * We don't cache here because it is not used by C# so it's quite rare, but
6256 * we still do the lookup in klass->ext because that is where the data
6257 * is stored for dynamic assemblies.
6260 if (klass->image->dynamic) {
6261 int prop_index = mono_property_get_index (property);
6262 if (klass->ext->prop_def_values && klass->ext->prop_def_values [prop_index].data) {
6263 *def_type = klass->ext->prop_def_values [prop_index].def_type;
6264 return klass->ext->prop_def_values [prop_index].data;
6268 cindex = mono_metadata_get_constant_index (klass->image, mono_class_get_property_token (property), 0);
6272 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6273 *def_type = constant_cols [MONO_CONSTANT_TYPE];
6274 return (gpointer)mono_metadata_blob_heap (klass->image, constant_cols [MONO_CONSTANT_VALUE]);
6278 mono_class_get_event_token (MonoEvent *event)
6280 MonoClass *klass = event->parent;
6285 for (i = 0; i < klass->ext->event.count; ++i) {
6286 if (&klass->ext->events [i] == event)
6287 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
6290 klass = klass->parent;
6293 g_assert_not_reached ();
6298 mono_class_get_property_from_name (MonoClass *klass, const char *name)
6302 gpointer iter = NULL;
6303 while ((p = mono_class_get_properties (klass, &iter))) {
6304 if (! strcmp (name, p->name))
6307 klass = klass->parent;
6313 mono_class_get_property_token (MonoProperty *prop)
6315 MonoClass *klass = prop->parent;
6319 gpointer iter = NULL;
6320 while ((p = mono_class_get_properties (klass, &iter))) {
6321 if (&klass->ext->properties [i] == prop)
6322 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
6326 klass = klass->parent;
6329 g_assert_not_reached ();
6334 mono_class_name_from_token (MonoImage *image, guint32 type_token)
6336 const char *name, *nspace;
6338 return g_strdup_printf ("DynamicType 0x%08x", type_token);
6340 switch (type_token & 0xff000000){
6341 case MONO_TOKEN_TYPE_DEF: {
6342 guint32 cols [MONO_TYPEDEF_SIZE];
6343 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
6344 guint tidx = mono_metadata_token_index (type_token);
6346 if (tidx > tt->rows)
6347 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6349 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
6350 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6351 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6352 if (strlen (nspace) == 0)
6353 return g_strdup_printf ("%s", name);
6355 return g_strdup_printf ("%s.%s", nspace, name);
6358 case MONO_TOKEN_TYPE_REF: {
6359 guint32 cols [MONO_TYPEREF_SIZE];
6360 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6361 guint tidx = mono_metadata_token_index (type_token);
6364 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6365 mono_metadata_decode_row (t, tidx-1, cols, MONO_TYPEREF_SIZE);
6366 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
6367 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
6368 if (strlen (nspace) == 0)
6369 return g_strdup_printf ("%s", name);
6371 return g_strdup_printf ("%s.%s", nspace, name);
6374 case MONO_TOKEN_TYPE_SPEC:
6375 return g_strdup_printf ("Typespec 0x%08x", type_token);
6377 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6382 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
6385 return g_strdup_printf ("DynamicAssembly %s", image->name);
6387 switch (type_token & 0xff000000){
6388 case MONO_TOKEN_TYPE_DEF:
6389 return mono_stringify_assembly_name (&image->assembly->aname);
6391 case MONO_TOKEN_TYPE_REF: {
6392 MonoAssemblyName aname;
6393 guint32 cols [MONO_TYPEREF_SIZE];
6394 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6395 guint32 idx = mono_metadata_token_index (type_token);
6398 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6400 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPEREF_SIZE);
6402 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
6403 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
6404 case MONO_RESOLTION_SCOPE_MODULE:
6406 return g_strdup ("");
6407 case MONO_RESOLTION_SCOPE_MODULEREF:
6409 return g_strdup ("");
6410 case MONO_RESOLTION_SCOPE_TYPEREF:
6412 return g_strdup ("");
6413 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
6414 mono_assembly_get_assemblyref (image, idx - 1, &aname);
6415 return mono_stringify_assembly_name (&aname);
6417 g_assert_not_reached ();
6421 case MONO_TOKEN_TYPE_SPEC:
6423 return g_strdup ("");
6425 g_assert_not_reached ();
6432 * mono_class_get_full:
6433 * @image: the image where the class resides
6434 * @type_token: the token for the class
6435 * @context: the generic context used to evaluate generic instantiations in
6437 * Returns: the MonoClass that represents @type_token in @image
6440 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6443 MonoClass *class = NULL;
6445 if (image->dynamic) {
6446 int table = mono_metadata_token_table (type_token);
6448 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
6449 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
6452 return mono_lookup_dynamic_token (image, type_token, context);
6455 switch (type_token & 0xff000000){
6456 case MONO_TOKEN_TYPE_DEF:
6457 class = mono_class_create_from_typedef (image, type_token);
6459 case MONO_TOKEN_TYPE_REF:
6460 class = mono_class_from_typeref (image, type_token);
6462 case MONO_TOKEN_TYPE_SPEC:
6463 class = mono_class_create_from_typespec (image, type_token, context, &error);
6464 if (!mono_error_ok (&error)) {
6465 /*FIXME don't swallow the error message*/
6466 mono_error_cleanup (&error);
6470 g_warning ("unknown token type %x", type_token & 0xff000000);
6471 g_assert_not_reached ();
6475 char *name = mono_class_name_from_token (image, type_token);
6476 char *assembly = mono_assembly_name_from_token (image, type_token);
6477 mono_loader_set_error_type_load (name, assembly);
6487 * mono_type_get_full:
6488 * @image: the image where the type resides
6489 * @type_token: the token for the type
6490 * @context: the generic context used to evaluate generic instantiations in
6492 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
6494 * Returns: the MonoType that represents @type_token in @image
6497 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6500 MonoType *type = NULL;
6501 gboolean inflated = FALSE;
6503 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
6505 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
6507 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
6508 MonoClass *class = mono_class_get_full (image, type_token, context);
6509 return class ? mono_class_get_type (class) : NULL;
6512 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated, &error);
6514 if (!mono_error_ok (&error)) {
6515 /*FIXME don't swalloc the error message.*/
6516 char *name = mono_class_name_from_token (image, type_token);
6517 char *assembly = mono_assembly_name_from_token (image, type_token);
6519 g_warning ("Error loading type %s from %s due to %s", name, assembly, mono_error_get_message (&error));
6521 mono_error_cleanup (&error);
6522 mono_loader_set_error_type_load (name, assembly);
6527 MonoType *tmp = type;
6528 type = mono_class_get_type (mono_class_from_mono_type (type));
6529 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
6530 * A MonoClass::byval_arg of a generic type definion has type CLASS.
6531 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
6533 * The long term solution is to chaise this places and make then set MonoType::type correctly.
6535 if (type->type != tmp->type)
6538 mono_metadata_free_type (tmp);
6545 mono_class_get (MonoImage *image, guint32 type_token)
6547 return mono_class_get_full (image, type_token, NULL);
6551 * mono_image_init_name_cache:
6553 * Initializes the class name cache stored in image->name_cache.
6555 * LOCKING: Acquires the corresponding image lock.
6558 mono_image_init_name_cache (MonoImage *image)
6560 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
6561 guint32 cols [MONO_TYPEDEF_SIZE];
6564 guint32 i, visib, nspace_index;
6565 GHashTable *name_cache2, *nspace_table;
6567 mono_image_lock (image);
6569 if (image->name_cache) {
6570 mono_image_unlock (image);
6574 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
6576 if (image->dynamic) {
6577 mono_image_unlock (image);
6581 /* Temporary hash table to avoid lookups in the nspace_table */
6582 name_cache2 = g_hash_table_new (NULL, NULL);
6584 for (i = 1; i <= t->rows; ++i) {
6585 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
6586 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
6588 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6589 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6591 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
6593 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6594 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6596 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
6597 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6598 if (!nspace_table) {
6599 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6600 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6601 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6604 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
6607 /* Load type names from EXPORTEDTYPES table */
6609 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
6610 guint32 cols [MONO_EXP_TYPE_SIZE];
6613 for (i = 0; i < t->rows; ++i) {
6614 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
6615 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
6616 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
6618 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
6619 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6620 if (!nspace_table) {
6621 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6622 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6623 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6626 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
6630 g_hash_table_destroy (name_cache2);
6631 mono_image_unlock (image);
6634 /*FIXME Only dynamic assemblies should allow this operation.*/
6636 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
6637 const char *name, guint32 index)
6639 GHashTable *nspace_table;
6640 GHashTable *name_cache;
6643 mono_image_lock (image);
6645 if (!image->name_cache)
6646 mono_image_init_name_cache (image);
6648 name_cache = image->name_cache;
6649 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
6650 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6651 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
6654 if ((old_index = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, (char*) name))))
6655 g_error ("overrwritting old token %x on image %s for type %s::%s", old_index, image->name, nspace, name);
6657 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
6659 mono_image_unlock (image);
6668 find_nocase (gpointer key, gpointer value, gpointer user_data)
6670 char *name = (char*)key;
6671 FindUserData *data = (FindUserData*)user_data;
6673 if (!data->value && (mono_utf8_strcasecmp (name, (char*)data->key) == 0))
6674 data->value = value;
6678 * mono_class_from_name_case:
6679 * @image: The MonoImage where the type is looked up in
6680 * @name_space: the type namespace
6681 * @name: the type short name.
6683 * Obtains a MonoClass with a given namespace and a given name which
6684 * is located in the given MonoImage. The namespace and name
6685 * lookups are case insensitive.
6688 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
6690 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
6691 guint32 cols [MONO_TYPEDEF_SIZE];
6696 if (image->dynamic) {
6698 FindUserData user_data;
6700 mono_image_lock (image);
6702 if (!image->name_cache)
6703 mono_image_init_name_cache (image);
6705 user_data.key = name_space;
6706 user_data.value = NULL;
6707 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
6709 if (user_data.value) {
6710 GHashTable *nspace_table = (GHashTable*)user_data.value;
6712 user_data.key = name;
6713 user_data.value = NULL;
6715 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
6717 if (user_data.value)
6718 token = GPOINTER_TO_UINT (user_data.value);
6721 mono_image_unlock (image);
6724 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
6730 /* add a cache if needed */
6731 for (i = 1; i <= t->rows; ++i) {
6732 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
6733 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
6735 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6736 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6738 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
6740 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6741 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6742 if (mono_utf8_strcasecmp (n, name) == 0 && mono_utf8_strcasecmp (nspace, name_space) == 0)
6743 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
6749 return_nested_in (MonoClass *class, char *nested)
6752 char *s = strchr (nested, '/');
6753 gpointer iter = NULL;
6760 while ((found = mono_class_get_nested_types (class, &iter))) {
6761 if (strcmp (found->name, nested) == 0) {
6763 return return_nested_in (found, s);
6771 search_modules (MonoImage *image, const char *name_space, const char *name)
6773 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
6774 MonoImage *file_image;
6779 * The EXPORTEDTYPES table only contains public types, so have to search the
6781 * Note: image->modules contains the contents of the MODULEREF table, while
6782 * the real module list is in the FILE table.
6784 for (i = 0; i < file_table->rows; i++) {
6785 guint32 cols [MONO_FILE_SIZE];
6786 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
6787 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
6790 file_image = mono_image_load_file_for_image (image, i + 1);
6792 class = mono_class_from_name (file_image, name_space, name);
6802 * mono_class_from_name:
6803 * @image: The MonoImage where the type is looked up in
6804 * @name_space: the type namespace
6805 * @name: the type short name.
6807 * Obtains a MonoClass with a given namespace and a given name which
6808 * is located in the given MonoImage.
6811 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
6813 GHashTable *nspace_table;
6814 MonoImage *loaded_image;
6821 if ((nested = strchr (name, '/'))) {
6822 int pos = nested - name;
6823 int len = strlen (name);
6826 memcpy (buf, name, len + 1);
6828 nested = buf + pos + 1;
6832 if (get_class_from_name) {
6833 gboolean res = get_class_from_name (image, name_space, name, &class);
6836 class = search_modules (image, name_space, name);
6838 return class ? return_nested_in (class, nested) : NULL;
6844 mono_image_lock (image);
6846 if (!image->name_cache)
6847 mono_image_init_name_cache (image);
6849 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
6852 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
6854 mono_image_unlock (image);
6856 if (!token && image->dynamic && image->modules) {
6857 /* Search modules as well */
6858 for (i = 0; i < image->module_count; ++i) {
6859 MonoImage *module = image->modules [i];
6861 class = mono_class_from_name (module, name_space, name);
6868 class = search_modules (image, name_space, name);
6876 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
6877 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
6878 guint32 cols [MONO_EXP_TYPE_SIZE];
6881 idx = mono_metadata_token_index (token);
6883 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
6885 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
6886 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
6887 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
6890 class = mono_class_from_name (loaded_image, name_space, name);
6892 return return_nested_in (class, nested);
6894 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
6895 guint32 assembly_idx;
6897 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
6899 mono_assembly_load_reference (image, assembly_idx - 1);
6900 g_assert (image->references [assembly_idx - 1]);
6901 if (image->references [assembly_idx - 1] == (gpointer)-1)
6904 /* FIXME: Cycle detection */
6905 return mono_class_from_name (image->references [assembly_idx - 1]->image, name_space, name);
6907 g_error ("not yet implemented");
6911 token = MONO_TOKEN_TYPE_DEF | token;
6913 class = mono_class_get (image, token);
6915 return return_nested_in (class, nested);
6919 /*FIXME test for interfaces with variant generic arguments*/
6921 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
6922 gboolean check_interfaces)
6924 g_assert (klassc->idepth > 0);
6925 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
6926 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
6928 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
6931 for (i = 0; i < klass->interface_count; i ++) {
6932 MonoClass *ic = klass->interfaces [i];
6937 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
6942 * MS.NET thinks interfaces are a subclass of Object, so we think it as
6945 if (klassc == mono_defaults.object_class)
6952 mono_class_has_variant_generic_params (MonoClass *klass)
6955 MonoGenericContainer *container;
6957 if (!klass->generic_class)
6960 container = klass->generic_class->container_class->generic_container;
6962 for (i = 0; i < container->type_argc; ++i)
6963 if (mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
6970 * @container the generic container from the GTD
6971 * @klass: the class to be assigned to
6972 * @oklass: the source class
6974 * Both klass and oklass must be instances of the same generic interface.
6975 * Return true if @klass can be assigned to a @klass variable
6978 mono_class_is_variant_compatible (MonoClass *klass, MonoClass *oklass)
6981 MonoType **klass_argv, **oklass_argv;
6982 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
6983 MonoGenericContainer *container = klass_gtd->generic_container;
6985 /*Viable candidates are instances of the same generic interface*/
6986 if (mono_class_get_generic_type_definition (oklass) != klass_gtd)
6989 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
6990 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
6992 for (j = 0; j < container->type_argc; ++j) {
6993 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
6994 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
6996 if (param1_class->valuetype != param2_class->valuetype)
7000 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7001 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7003 if (param1_class != param2_class) {
7004 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7005 if (!mono_class_is_assignable_from (param1_class, param2_class))
7007 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7008 if (!mono_class_is_assignable_from (param2_class, param1_class))
7018 * mono_class_is_assignable_from:
7019 * @klass: the class to be assigned to
7020 * @oklass: the source class
7022 * Return: true if an instance of object oklass can be assigned to an
7023 * instance of object @klass
7026 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
7029 mono_class_init (klass);
7031 if (!oklass->inited)
7032 mono_class_init (oklass);
7034 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
7035 return klass == oklass;
7037 if (MONO_CLASS_IS_INTERFACE (klass)) {
7038 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
7041 /* interface_offsets might not be set for dynamic classes */
7042 if (oklass->ref_info_handle && !oklass->interface_bitmap)
7044 * oklass might be a generic type parameter but they have
7045 * interface_offsets set.
7047 return mono_reflection_call_is_assignable_to (oklass, klass);
7048 if (!oklass->interface_bitmap)
7049 /* Happens with generic instances of not-yet created dynamic types */
7051 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
7054 if (mono_class_has_variant_generic_params (klass)) {
7057 mono_class_setup_interfaces (oklass, &error);
7058 if (!mono_error_ok (&error)) {
7059 mono_error_cleanup (&error);
7063 /*klass is a generic variant interface, We need to extract from oklass a list of ifaces which are viable candidates.*/
7064 for (i = 0; i < oklass->interface_offsets_count; ++i) {
7065 MonoClass *iface = oklass->interfaces_packed [i];
7067 if (mono_class_is_variant_compatible (klass, iface))
7072 } else if (klass->delegate) {
7073 if (mono_class_has_variant_generic_params (klass) && mono_class_is_variant_compatible (klass, oklass))
7075 }else if (klass->rank) {
7076 MonoClass *eclass, *eoclass;
7078 if (oklass->rank != klass->rank)
7081 /* vectors vs. one dimensional arrays */
7082 if (oklass->byval_arg.type != klass->byval_arg.type)
7085 eclass = klass->cast_class;
7086 eoclass = oklass->cast_class;
7089 * a is b does not imply a[] is b[] when a is a valuetype, and
7090 * b is a reference type.
7093 if (eoclass->valuetype) {
7094 if ((eclass == mono_defaults.enum_class) ||
7095 (eclass == mono_defaults.enum_class->parent) ||
7096 (eclass == mono_defaults.object_class))
7100 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7101 } else if (mono_class_is_nullable (klass)) {
7102 if (mono_class_is_nullable (oklass))
7103 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7105 return mono_class_is_assignable_from (klass->cast_class, oklass);
7106 } else if (klass == mono_defaults.object_class)
7109 return mono_class_has_parent (oklass, klass);
7112 /*Check if @oklass is variant compatible with @klass.*/
7114 mono_class_is_variant_compatible_slow (MonoClass *klass, MonoClass *oklass)
7117 MonoType **klass_argv, **oklass_argv;
7118 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7119 MonoGenericContainer *container = klass_gtd->generic_container;
7121 /*Viable candidates are instances of the same generic interface*/
7122 if (mono_class_get_generic_type_definition (oklass) != klass_gtd)
7125 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7126 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7128 for (j = 0; j < container->type_argc; ++j) {
7129 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7130 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7132 if (param1_class->valuetype != param2_class->valuetype)
7136 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7137 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7139 if (param1_class != param2_class) {
7140 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7141 if (!mono_class_is_assignable_from_slow (param1_class, param2_class))
7143 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7144 if (!mono_class_is_assignable_from_slow (param2_class, param1_class))
7152 /*Check if @candidate implements the interface @target*/
7154 mono_class_implement_interface_slow (MonoClass *target, MonoClass *candidate)
7158 gboolean is_variant = mono_class_has_variant_generic_params (target);
7160 if (is_variant && MONO_CLASS_IS_INTERFACE (candidate)) {
7161 if (mono_class_is_variant_compatible_slow (target, candidate))
7166 if (candidate == target)
7169 /*A TypeBuilder can have more interfaces on tb->interfaces than on candidate->interfaces*/
7170 if (candidate->image->dynamic && !candidate->wastypebuilder) {
7171 MonoReflectionTypeBuilder *tb = mono_class_get_ref_info (candidate);
7173 if (tb && tb->interfaces) {
7174 for (j = mono_array_length (tb->interfaces) - 1; j >= 0; --j) {
7175 MonoReflectionType *iface = mono_array_get (tb->interfaces, MonoReflectionType*, j);
7176 MonoClass *iface_class = mono_class_from_mono_type (iface->type);
7177 if (iface_class == target)
7179 if (is_variant && mono_class_is_variant_compatible_slow (target, iface_class))
7181 if (mono_class_implement_interface_slow (target, iface_class))
7186 /*setup_interfaces don't mono_class_init anything*/
7187 mono_class_setup_interfaces (candidate, &error);
7188 if (!mono_error_ok (&error)) {
7189 mono_error_cleanup (&error);
7193 for (i = 0; i < candidate->interface_count; ++i) {
7194 if (candidate->interfaces [i] == target)
7197 if (is_variant && mono_class_is_variant_compatible_slow (target, candidate->interfaces [i]))
7200 if (mono_class_implement_interface_slow (target, candidate->interfaces [i]))
7204 candidate = candidate->parent;
7205 } while (candidate);
7211 * Check if @oklass can be assigned to @klass.
7212 * This function does the same as mono_class_is_assignable_from but is safe to be used from mono_class_init context.
7215 mono_class_is_assignable_from_slow (MonoClass *target, MonoClass *candidate)
7217 if (candidate == target)
7219 if (target == mono_defaults.object_class)
7222 /*setup_supertypes don't mono_class_init anything */
7223 mono_class_setup_supertypes (candidate);
7224 mono_class_setup_supertypes (target);
7226 if (mono_class_has_parent (candidate, target))
7229 /*If target is not an interface there is no need to check them.*/
7230 if (MONO_CLASS_IS_INTERFACE (target))
7231 return mono_class_implement_interface_slow (target, candidate);
7233 if (target->delegate && mono_class_has_variant_generic_params (target))
7234 return mono_class_is_variant_compatible (target, candidate);
7236 /*FIXME properly handle nullables and arrays */
7242 * mono_class_get_cctor:
7243 * @klass: A MonoClass pointer
7245 * Returns: the static constructor of @klass if it exists, NULL otherwise.
7248 mono_class_get_cctor (MonoClass *klass)
7250 MonoCachedClassInfo cached_info;
7252 if (klass->image->dynamic) {
7254 * has_cctor is not set for these classes because mono_class_init () is
7257 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7260 if (!klass->has_cctor)
7263 if (mono_class_get_cached_class_info (klass, &cached_info))
7264 return mono_get_method (klass->image, cached_info.cctor_token, klass);
7266 if (klass->generic_class && !klass->methods)
7267 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
7269 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7273 * mono_class_get_finalizer:
7274 * @klass: The MonoClass pointer
7276 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
7279 mono_class_get_finalizer (MonoClass *klass)
7281 MonoCachedClassInfo cached_info;
7284 mono_class_init (klass);
7285 if (!klass->has_finalize)
7288 if (mono_class_get_cached_class_info (klass, &cached_info))
7289 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
7291 mono_class_setup_vtable (klass);
7292 return klass->vtable [finalize_slot];
7297 * mono_class_needs_cctor_run:
7298 * @klass: the MonoClass pointer
7299 * @caller: a MonoMethod describing the caller
7301 * Determines whenever the class has a static constructor and whenever it
7302 * needs to be called when executing CALLER.
7305 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
7309 method = mono_class_get_cctor (klass);
7311 return (method == caller) ? FALSE : TRUE;
7317 * mono_class_array_element_size:
7320 * Returns: the number of bytes an element of type @klass
7321 * uses when stored into an array.
7324 mono_class_array_element_size (MonoClass *klass)
7326 MonoType *type = &klass->byval_arg;
7329 switch (type->type) {
7332 case MONO_TYPE_BOOLEAN:
7336 case MONO_TYPE_CHAR:
7345 case MONO_TYPE_CLASS:
7346 case MONO_TYPE_STRING:
7347 case MONO_TYPE_OBJECT:
7348 case MONO_TYPE_SZARRAY:
7349 case MONO_TYPE_ARRAY:
7351 case MONO_TYPE_MVAR:
7352 return sizeof (gpointer);
7357 case MONO_TYPE_VALUETYPE:
7358 if (type->data.klass->enumtype) {
7359 type = mono_class_enum_basetype (type->data.klass);
7360 klass = klass->element_class;
7363 return mono_class_instance_size (klass) - sizeof (MonoObject);
7364 case MONO_TYPE_GENERICINST:
7365 type = &type->data.generic_class->container_class->byval_arg;
7368 case MONO_TYPE_VOID:
7372 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
7378 * mono_array_element_size:
7379 * @ac: pointer to a #MonoArrayClass
7381 * Returns: the size of single array element.
7384 mono_array_element_size (MonoClass *ac)
7386 g_assert (ac->rank);
7387 return ac->sizes.element_size;
7391 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
7392 MonoGenericContext *context)
7394 if (image->dynamic) {
7395 MonoClass *tmp_handle_class;
7396 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
7398 g_assert (tmp_handle_class);
7400 *handle_class = tmp_handle_class;
7402 if (tmp_handle_class == mono_defaults.typehandle_class)
7403 return &((MonoClass*)obj)->byval_arg;
7408 switch (token & 0xff000000) {
7409 case MONO_TOKEN_TYPE_DEF:
7410 case MONO_TOKEN_TYPE_REF:
7411 case MONO_TOKEN_TYPE_SPEC: {
7414 *handle_class = mono_defaults.typehandle_class;
7415 type = mono_type_get_full (image, token, context);
7418 mono_class_init (mono_class_from_mono_type (type));
7419 /* We return a MonoType* as handle */
7422 case MONO_TOKEN_FIELD_DEF: {
7424 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
7428 *handle_class = mono_defaults.fieldhandle_class;
7429 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
7432 mono_class_init (class);
7433 return mono_class_get_field (class, token);
7435 case MONO_TOKEN_METHOD_DEF:
7436 case MONO_TOKEN_METHOD_SPEC: {
7438 meth = mono_get_method_full (image, token, NULL, context);
7440 *handle_class = mono_defaults.methodhandle_class;
7443 case MONO_TOKEN_MEMBER_REF: {
7444 guint32 cols [MONO_MEMBERREF_SIZE];
7446 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
7447 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
7448 mono_metadata_decode_blob_size (sig, &sig);
7449 if (*sig == 0x6) { /* it's a field */
7451 MonoClassField *field;
7452 field = mono_field_from_token (image, token, &klass, context);
7454 *handle_class = mono_defaults.fieldhandle_class;
7458 meth = mono_get_method_full (image, token, NULL, context);
7460 *handle_class = mono_defaults.methodhandle_class;
7465 g_warning ("Unknown token 0x%08x in ldtoken", token);
7472 * This function might need to call runtime functions so it can't be part
7473 * of the metadata library.
7475 static MonoLookupDynamicToken lookup_dynamic = NULL;
7478 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
7480 lookup_dynamic = func;
7484 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
7486 MonoClass *handle_class;
7488 return lookup_dynamic (image, token, TRUE, &handle_class, context);
7492 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
7494 return lookup_dynamic (image, token, valid_token, handle_class, context);
7497 static MonoGetCachedClassInfo get_cached_class_info = NULL;
7500 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
7502 get_cached_class_info = func;
7506 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
7508 if (!get_cached_class_info)
7511 return get_cached_class_info (klass, res);
7515 mono_install_get_class_from_name (MonoGetClassFromName func)
7517 get_class_from_name = func;
7521 mono_class_get_image (MonoClass *klass)
7523 return klass->image;
7527 * mono_class_get_element_class:
7528 * @klass: the MonoClass to act on
7530 * Returns: the element class of an array or an enumeration.
7533 mono_class_get_element_class (MonoClass *klass)
7535 return klass->element_class;
7539 * mono_class_is_valuetype:
7540 * @klass: the MonoClass to act on
7542 * Returns: true if the MonoClass represents a ValueType.
7545 mono_class_is_valuetype (MonoClass *klass)
7547 return klass->valuetype;
7551 * mono_class_is_enum:
7552 * @klass: the MonoClass to act on
7554 * Returns: true if the MonoClass represents an enumeration.
7557 mono_class_is_enum (MonoClass *klass)
7559 return klass->enumtype;
7563 * mono_class_enum_basetype:
7564 * @klass: the MonoClass to act on
7566 * Returns: the underlying type representation for an enumeration.
7569 mono_class_enum_basetype (MonoClass *klass)
7571 if (klass->element_class == klass)
7572 /* SRE or broken types */
7575 return &klass->element_class->byval_arg;
7579 * mono_class_get_parent
7580 * @klass: the MonoClass to act on
7582 * Returns: the parent class for this class.
7585 mono_class_get_parent (MonoClass *klass)
7587 return klass->parent;
7591 * mono_class_get_nesting_type;
7592 * @klass: the MonoClass to act on
7594 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
7597 mono_class_get_nesting_type (MonoClass *klass)
7599 return klass->nested_in;
7603 * mono_class_get_rank:
7604 * @klass: the MonoClass to act on
7606 * Returns: the rank for the array (the number of dimensions).
7609 mono_class_get_rank (MonoClass *klass)
7615 * mono_class_get_flags:
7616 * @klass: the MonoClass to act on
7618 * The type flags from the TypeDef table from the metadata.
7619 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
7622 * Returns: the flags from the TypeDef table.
7625 mono_class_get_flags (MonoClass *klass)
7627 return klass->flags;
7631 * mono_class_get_name
7632 * @klass: the MonoClass to act on
7634 * Returns: the name of the class.
7637 mono_class_get_name (MonoClass *klass)
7643 * mono_class_get_namespace:
7644 * @klass: the MonoClass to act on
7646 * Returns: the namespace of the class.
7649 mono_class_get_namespace (MonoClass *klass)
7651 return klass->name_space;
7655 * mono_class_get_type:
7656 * @klass: the MonoClass to act on
7658 * This method returns the internal Type representation for the class.
7660 * Returns: the MonoType from the class.
7663 mono_class_get_type (MonoClass *klass)
7665 return &klass->byval_arg;
7669 * mono_class_get_type_token
7670 * @klass: the MonoClass to act on
7672 * This method returns type token for the class.
7674 * Returns: the type token for the class.
7677 mono_class_get_type_token (MonoClass *klass)
7679 return klass->type_token;
7683 * mono_class_get_byref_type:
7684 * @klass: the MonoClass to act on
7689 mono_class_get_byref_type (MonoClass *klass)
7691 return &klass->this_arg;
7695 * mono_class_num_fields:
7696 * @klass: the MonoClass to act on
7698 * Returns: the number of static and instance fields in the class.
7701 mono_class_num_fields (MonoClass *klass)
7703 return klass->field.count;
7707 * mono_class_num_methods:
7708 * @klass: the MonoClass to act on
7710 * Returns: the number of methods in the class.
7713 mono_class_num_methods (MonoClass *klass)
7715 return klass->method.count;
7719 * mono_class_num_properties
7720 * @klass: the MonoClass to act on
7722 * Returns: the number of properties in the class.
7725 mono_class_num_properties (MonoClass *klass)
7727 mono_class_setup_properties (klass);
7729 return klass->ext->property.count;
7733 * mono_class_num_events:
7734 * @klass: the MonoClass to act on
7736 * Returns: the number of events in the class.
7739 mono_class_num_events (MonoClass *klass)
7741 mono_class_setup_events (klass);
7743 return klass->ext->event.count;
7747 * mono_class_get_fields:
7748 * @klass: the MonoClass to act on
7750 * This routine is an iterator routine for retrieving the fields in a class.
7752 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7753 * iterate over all of the elements. When no more values are
7754 * available, the return value is NULL.
7756 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
7759 mono_class_get_fields (MonoClass* klass, gpointer *iter)
7761 MonoClassField* field;
7765 mono_class_setup_fields_locking (klass);
7766 if (klass->exception_type)
7768 /* start from the first */
7769 if (klass->field.count) {
7770 return *iter = &klass->fields [0];
7778 if (field < &klass->fields [klass->field.count]) {
7779 return *iter = field;
7785 * mono_class_get_methods
7786 * @klass: the MonoClass to act on
7788 * This routine is an iterator routine for retrieving the fields in a class.
7790 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7791 * iterate over all of the elements. When no more values are
7792 * available, the return value is NULL.
7794 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
7797 mono_class_get_methods (MonoClass* klass, gpointer *iter)
7799 MonoMethod** method;
7803 mono_class_init (klass);
7805 mono_class_setup_methods (klass);
7808 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
7809 * FIXME we should better report this error to the caller
7811 if (!klass->methods)
7813 /* start from the first */
7814 if (klass->method.count) {
7815 *iter = &klass->methods [0];
7816 return klass->methods [0];
7824 if (method < &klass->methods [klass->method.count]) {
7832 * mono_class_get_virtual_methods:
7834 * Iterate over the virtual methods of KLASS.
7836 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
7839 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
7841 MonoMethod** method;
7844 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
7846 mono_class_setup_methods (klass);
7848 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
7849 * FIXME we should better report this error to the caller
7851 if (!klass->methods)
7853 /* start from the first */
7854 method = &klass->methods [0];
7859 while (method < &klass->methods [klass->method.count]) {
7860 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
7864 if (method < &klass->methods [klass->method.count]) {
7871 /* Search directly in metadata to avoid calling setup_methods () */
7872 MonoMethod *res = NULL;
7878 start_index = GPOINTER_TO_UINT (*iter);
7881 for (i = start_index; i < klass->method.count; ++i) {
7884 /* class->method.first points into the methodptr table */
7885 flags = mono_metadata_decode_table_row_col (klass->image, MONO_TABLE_METHOD, klass->method.first + i, MONO_METHOD_FLAGS);
7887 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
7891 if (i < klass->method.count) {
7892 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
7893 /* Add 1 here so the if (*iter) check fails */
7894 *iter = GUINT_TO_POINTER (i + 1);
7903 * mono_class_get_properties:
7904 * @klass: the MonoClass to act on
7906 * This routine is an iterator routine for retrieving the properties in a class.
7908 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7909 * iterate over all of the elements. When no more values are
7910 * available, the return value is NULL.
7912 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
7915 mono_class_get_properties (MonoClass* klass, gpointer *iter)
7917 MonoProperty* property;
7921 mono_class_init (klass);
7923 mono_class_setup_properties (klass);
7924 /* start from the first */
7925 if (klass->ext->property.count) {
7926 return *iter = &klass->ext->properties [0];
7934 if (property < &klass->ext->properties [klass->ext->property.count]) {
7935 return *iter = property;
7941 * mono_class_get_events:
7942 * @klass: the MonoClass to act on
7944 * This routine is an iterator routine for retrieving the properties in a class.
7946 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7947 * iterate over all of the elements. When no more values are
7948 * available, the return value is NULL.
7950 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
7953 mono_class_get_events (MonoClass* klass, gpointer *iter)
7959 mono_class_init (klass);
7961 mono_class_setup_events (klass);
7962 /* start from the first */
7963 if (klass->ext->event.count) {
7964 return *iter = &klass->ext->events [0];
7972 if (event < &klass->ext->events [klass->ext->event.count]) {
7973 return *iter = event;
7979 * mono_class_get_interfaces
7980 * @klass: the MonoClass to act on
7982 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
7984 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7985 * iterate over all of the elements. When no more values are
7986 * available, the return value is NULL.
7988 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
7991 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
7999 mono_class_init (klass);
8000 if (!klass->interfaces_inited) {
8001 mono_class_setup_interfaces (klass, &error);
8002 if (!mono_error_ok (&error)) {
8003 mono_error_cleanup (&error);
8007 /* start from the first */
8008 if (klass->interface_count) {
8009 *iter = &klass->interfaces [0];
8010 return klass->interfaces [0];
8018 if (iface < &klass->interfaces [klass->interface_count]) {
8026 * mono_class_get_nested_types
8027 * @klass: the MonoClass to act on
8029 * This routine is an iterator routine for retrieving the nested types of a class.
8030 * This works only if @klass is non-generic, or a generic type definition.
8032 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8033 * iterate over all of the elements. When no more values are
8034 * available, the return value is NULL.
8036 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
8039 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
8047 mono_class_init (klass);
8048 if (!klass->nested_classes_inited) {
8049 if (!klass->type_token)
8050 klass->nested_classes_inited = TRUE;
8051 mono_loader_lock ();
8052 if (!klass->nested_classes_inited) {
8053 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
8056 guint32 cols [MONO_NESTED_CLASS_SIZE];
8057 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
8058 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
8061 mono_class_alloc_ext (klass);
8062 klass->ext->nested_classes = g_list_prepend_image (klass->image, klass->ext->nested_classes, nclass);
8064 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8067 mono_memory_barrier ();
8068 klass->nested_classes_inited = TRUE;
8069 mono_loader_unlock ();
8073 /* start from the first */
8074 if (klass->ext && klass->ext->nested_classes) {
8075 *iter = klass->ext->nested_classes;
8076 return klass->ext->nested_classes->data;
8078 /* no nested types */
8092 * mono_field_get_name:
8093 * @field: the MonoClassField to act on
8095 * Returns: the name of the field.
8098 mono_field_get_name (MonoClassField *field)
8104 * mono_field_get_type:
8105 * @field: the MonoClassField to act on
8107 * Returns: MonoType of the field.
8110 mono_field_get_type (MonoClassField *field)
8116 * mono_field_get_parent:
8117 * @field: the MonoClassField to act on
8119 * Returns: MonoClass where the field was defined.
8122 mono_field_get_parent (MonoClassField *field)
8124 return field->parent;
8128 * mono_field_get_flags;
8129 * @field: the MonoClassField to act on
8131 * The metadata flags for a field are encoded using the
8132 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8134 * Returns: the flags for the field.
8137 mono_field_get_flags (MonoClassField *field)
8139 return field->type->attrs;
8143 * mono_field_get_offset;
8144 * @field: the MonoClassField to act on
8146 * Returns: the field offset.
8149 mono_field_get_offset (MonoClassField *field)
8151 return field->offset;
8155 mono_field_get_rva (MonoClassField *field)
8159 MonoClass *klass = field->parent;
8161 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
8163 if (!klass->ext || !klass->ext->field_def_values) {
8164 mono_loader_lock ();
8165 mono_class_alloc_ext (klass);
8166 if (!klass->ext->field_def_values)
8167 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
8168 mono_loader_unlock ();
8171 field_index = mono_field_get_index (field);
8173 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
8174 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
8176 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
8177 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
8180 return klass->ext->field_def_values [field_index].data;
8184 * mono_field_get_data;
8185 * @field: the MonoClassField to act on
8187 * Returns: pointer to the metadata constant value or to the field
8188 * data if it has an RVA flag.
8191 mono_field_get_data (MonoClassField *field)
8193 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
8194 MonoTypeEnum def_type;
8196 return mono_class_get_field_default_value (field, &def_type);
8197 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
8198 return mono_field_get_rva (field);
8205 * mono_property_get_name:
8206 * @prop: the MonoProperty to act on
8208 * Returns: the name of the property
8211 mono_property_get_name (MonoProperty *prop)
8217 * mono_property_get_set_method
8218 * @prop: the MonoProperty to act on.
8220 * Returns: the setter method of the property (A MonoMethod)
8223 mono_property_get_set_method (MonoProperty *prop)
8229 * mono_property_get_get_method
8230 * @prop: the MonoProperty to act on.
8232 * Returns: the setter method of the property (A MonoMethod)
8235 mono_property_get_get_method (MonoProperty *prop)
8241 * mono_property_get_parent:
8242 * @prop: the MonoProperty to act on.
8244 * Returns: the MonoClass where the property was defined.
8247 mono_property_get_parent (MonoProperty *prop)
8249 return prop->parent;
8253 * mono_property_get_flags:
8254 * @prop: the MonoProperty to act on.
8256 * The metadata flags for a property are encoded using the
8257 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8259 * Returns: the flags for the property.
8262 mono_property_get_flags (MonoProperty *prop)
8268 * mono_event_get_name:
8269 * @event: the MonoEvent to act on
8271 * Returns: the name of the event.
8274 mono_event_get_name (MonoEvent *event)
8280 * mono_event_get_add_method:
8281 * @event: The MonoEvent to act on.
8283 * Returns: the @add' method for the event (a MonoMethod).
8286 mono_event_get_add_method (MonoEvent *event)
8292 * mono_event_get_remove_method:
8293 * @event: The MonoEvent to act on.
8295 * Returns: the @remove method for the event (a MonoMethod).
8298 mono_event_get_remove_method (MonoEvent *event)
8300 return event->remove;
8304 * mono_event_get_raise_method:
8305 * @event: The MonoEvent to act on.
8307 * Returns: the @raise method for the event (a MonoMethod).
8310 mono_event_get_raise_method (MonoEvent *event)
8312 return event->raise;
8316 * mono_event_get_parent:
8317 * @event: the MonoEvent to act on.
8319 * Returns: the MonoClass where the event is defined.
8322 mono_event_get_parent (MonoEvent *event)
8324 return event->parent;
8328 * mono_event_get_flags
8329 * @event: the MonoEvent to act on.
8331 * The metadata flags for an event are encoded using the
8332 * EVENT_* constants. See the tabledefs.h file for details.
8334 * Returns: the flags for the event.
8337 mono_event_get_flags (MonoEvent *event)
8339 return event->attrs;
8343 * mono_class_get_method_from_name:
8344 * @klass: where to look for the method
8345 * @name_space: name of the method
8346 * @param_count: number of parameters. -1 for any number.
8348 * Obtains a MonoMethod with a given name and number of parameters.
8349 * It only works if there are no multiple signatures for any given method name.
8352 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
8354 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
8358 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
8360 MonoMethod *res = NULL;
8363 /* Search directly in the metadata to avoid calling setup_methods () */
8364 for (i = 0; i < klass->method.count; ++i) {
8365 guint32 cols [MONO_METHOD_SIZE];
8368 /* class->method.first points into the methodptr table */
8369 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
8371 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
8372 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
8373 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
8384 * mono_class_get_method_from_name_flags:
8385 * @klass: where to look for the method
8386 * @name_space: name of the method
8387 * @param_count: number of parameters. -1 for any number.
8388 * @flags: flags which must be set in the method
8390 * Obtains a MonoMethod with a given name and number of parameters.
8391 * It only works if there are no multiple signatures for any given method name.
8394 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
8396 MonoMethod *res = NULL;
8399 mono_class_init (klass);
8401 if (klass->generic_class && !klass->methods) {
8402 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
8404 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
8408 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
8409 mono_class_setup_methods (klass);
8411 We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8412 See mono/tests/array_load_exception.il
8413 FIXME we should better report this error to the caller
8415 if (!klass->methods)
8417 for (i = 0; i < klass->method.count; ++i) {
8418 MonoMethod *method = klass->methods [i];
8420 if (method->name[0] == name [0] &&
8421 !strcmp (name, method->name) &&
8422 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
8423 ((method->flags & flags) == flags)) {
8430 res = find_method_in_metadata (klass, name, param_count, flags);
8437 * mono_class_set_failure:
8438 * @klass: class in which the failure was detected
8439 * @ex_type: the kind of exception/error to be thrown (later)
8440 * @ex_data: exception data (specific to each type of exception/error)
8442 * Keep a detected failure informations in the class for later processing.
8443 * Note that only the first failure is kept.
8445 * LOCKING: Acquires the loader lock.
8448 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
8450 if (klass->exception_type)
8453 mono_loader_lock ();
8454 klass->exception_type = ex_type;
8456 mono_image_property_insert (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
8457 mono_loader_unlock ();
8463 * mono_class_get_exception_data:
8465 * Return the exception_data property of KLASS.
8467 * LOCKING: Acquires the loader lock.
8470 mono_class_get_exception_data (MonoClass *klass)
8472 return mono_image_property_lookup (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
8476 * mono_classes_init:
8478 * Initialize the resources used by this module.
8481 mono_classes_init (void)
8483 mono_counters_register ("Inflated methods size",
8484 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
8485 mono_counters_register ("Inflated classes",
8486 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
8487 mono_counters_register ("Inflated classes size",
8488 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
8489 mono_counters_register ("MonoClass size",
8490 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
8491 mono_counters_register ("MonoClassExt size",
8492 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
8496 * mono_classes_cleanup:
8498 * Free the resources used by this module.
8501 mono_classes_cleanup (void)
8503 if (global_interface_bitset)
8504 mono_bitset_free (global_interface_bitset);
8508 * mono_class_get_exception_for_failure:
8509 * @klass: class in which the failure was detected
8511 * Return a constructed MonoException than the caller can then throw
8512 * using mono_raise_exception - or NULL if no failure is present (or
8513 * doesn't result in an exception).
8516 mono_class_get_exception_for_failure (MonoClass *klass)
8518 gpointer exception_data = mono_class_get_exception_data (klass);
8520 switch (klass->exception_type) {
8521 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
8522 MonoDomain *domain = mono_domain_get ();
8523 MonoSecurityManager* secman = mono_security_manager_get_methods ();
8524 MonoMethod *method = exception_data;
8525 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
8526 MonoObject *exc = NULL;
8530 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
8531 args [2] = mono_type_get_object (domain, &klass->byval_arg);
8532 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
8534 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
8535 return (MonoException*) exc;
8537 case MONO_EXCEPTION_TYPE_LOAD: {
8540 char *str = mono_type_get_full_name (klass);
8541 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
8542 name = mono_string_new (mono_domain_get (), str);
8544 ex = mono_get_exception_type_load (name, astr);
8548 case MONO_EXCEPTION_MISSING_METHOD: {
8549 char *class_name = exception_data;
8550 char *assembly_name = class_name + strlen (class_name) + 1;
8552 return mono_get_exception_missing_method (class_name, assembly_name);
8554 case MONO_EXCEPTION_MISSING_FIELD: {
8555 char *class_name = exception_data;
8556 char *member_name = class_name + strlen (class_name) + 1;
8558 return mono_get_exception_missing_field (class_name, member_name);
8560 case MONO_EXCEPTION_FILE_NOT_FOUND: {
8561 char *msg_format = exception_data;
8562 char *assembly_name = msg_format + strlen (msg_format) + 1;
8563 char *msg = g_strdup_printf (msg_format, assembly_name);
8566 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
8572 case MONO_EXCEPTION_BAD_IMAGE: {
8573 return mono_get_exception_bad_image_format (exception_data);
8576 MonoLoaderError *error;
8579 error = mono_loader_get_last_error ();
8581 ex = mono_loader_error_prepare_exception (error);
8585 /* TODO - handle other class related failures */
8592 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
8594 outer_klass = mono_class_get_generic_type_definition (outer_klass);
8595 inner_klass = mono_class_get_generic_type_definition (inner_klass);
8597 if (outer_klass == inner_klass)
8599 inner_klass = inner_klass->nested_in;
8600 } while (inner_klass);
8605 mono_class_get_generic_type_definition (MonoClass *klass)
8607 return klass->generic_class ? klass->generic_class->container_class : klass;
8611 * Check if @klass is a subtype of @parent ignoring generic instantiations.
8613 * Generic instantiations are ignored for all super types of @klass.
8615 * Visibility checks ignoring generic instantiations.
8618 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
8621 klass = mono_class_get_generic_type_definition (klass);
8622 parent = mono_class_get_generic_type_definition (parent);
8624 for (i = 0; i < klass->idepth; ++i) {
8625 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
8631 * Subtype can only access parent members with family protection if the site object
8632 * is subclass of Subtype. For example:
8633 * class A { protected int x; }
8635 * void valid_access () {
8639 * void invalid_access () {
8646 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
8648 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
8651 if (context_klass == NULL)
8653 /*if access_klass is not member_klass context_klass must be type compat*/
8654 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
8660 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
8663 if (accessing == accessed)
8665 if (!accessed || !accessing)
8668 /* extra safety under CoreCLR - the runtime does not verify the strongname signatures
8669 * anywhere so untrusted friends are not safe to access platform's code internals */
8670 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR) {
8671 if (!mono_security_core_clr_can_access_internals (accessing->image, accessed->image))
8675 mono_assembly_load_friends (accessed);
8676 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
8677 MonoAssemblyName *friend = tmp->data;
8678 /* Be conservative with checks */
8681 if (strcmp (accessing->aname.name, friend->name))
8683 if (friend->public_key_token [0]) {
8684 if (!accessing->aname.public_key_token [0])
8686 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
8695 * If klass is a generic type or if it is derived from a generic type, return the
8696 * MonoClass of the generic definition
8697 * Returns NULL if not found
8700 get_generic_definition_class (MonoClass *klass)
8703 if (klass->generic_class && klass->generic_class->container_class)
8704 return klass->generic_class->container_class;
8705 klass = klass->parent;
8711 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
8714 for (i = 0; i < ginst->type_argc; ++i) {
8715 MonoType *type = ginst->type_argv[i];
8716 switch (type->type) {
8717 case MONO_TYPE_SZARRAY:
8718 if (!can_access_type (access_klass, type->data.klass))
8721 case MONO_TYPE_ARRAY:
8722 if (!can_access_type (access_klass, type->data.array->eklass))
8726 if (!can_access_type (access_klass, mono_class_from_mono_type (type->data.type)))
8729 case MONO_TYPE_CLASS:
8730 case MONO_TYPE_VALUETYPE:
8731 case MONO_TYPE_GENERICINST:
8732 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
8740 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
8744 if (access_klass->element_class && !access_klass->enumtype)
8745 access_klass = access_klass->element_class;
8747 if (member_klass->element_class && !member_klass->enumtype)
8748 member_klass = member_klass->element_class;
8750 access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
8752 if (member_klass->byval_arg.type == MONO_TYPE_VAR || member_klass->byval_arg.type == MONO_TYPE_MVAR)
8755 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
8758 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
8761 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
8764 /*Non nested type with nested visibility. We just fail it.*/
8765 if (access_level >= TYPE_ATTRIBUTE_NESTED_PRIVATE && access_level <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM && member_klass->nested_in == NULL)
8768 switch (access_level) {
8769 case TYPE_ATTRIBUTE_NOT_PUBLIC:
8770 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8772 case TYPE_ATTRIBUTE_PUBLIC:
8775 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
8778 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
8779 return is_nesting_type (member_klass, access_klass);
8781 case TYPE_ATTRIBUTE_NESTED_FAMILY:
8782 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
8784 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
8785 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8787 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
8788 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
8789 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
8791 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
8792 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
8793 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
8798 /* FIXME: check visibility of type, too */
8800 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
8802 MonoClass *member_generic_def;
8803 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
8804 access_klass->generic_container) &&
8805 (member_generic_def = get_generic_definition_class (member_klass))) {
8806 MonoClass *access_container;
8808 if (access_klass->generic_container)
8809 access_container = access_klass;
8811 access_container = access_klass->generic_class->container_class;
8813 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
8817 /* Partition I 8.5.3.2 */
8818 /* the access level values are the same for fields and methods */
8819 switch (access_level) {
8820 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
8821 /* same compilation unit */
8822 return access_klass->image == member_klass->image;
8823 case FIELD_ATTRIBUTE_PRIVATE:
8824 return access_klass == member_klass;
8825 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
8826 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
8827 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
8830 case FIELD_ATTRIBUTE_ASSEMBLY:
8831 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8832 case FIELD_ATTRIBUTE_FAMILY:
8833 if (is_valid_family_access (access_klass, member_klass, context_klass))
8836 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
8837 if (is_valid_family_access (access_klass, member_klass, context_klass))
8839 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8840 case FIELD_ATTRIBUTE_PUBLIC:
8847 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
8849 /* FIXME: check all overlapping fields */
8850 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
8852 MonoClass *nested = method->klass->nested_in;
8854 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
8857 nested = nested->nested_in;
8864 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
8866 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
8868 MonoClass *nested = method->klass->nested_in;
8870 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
8873 nested = nested->nested_in;
8878 * with generics calls to explicit interface implementations can be expressed
8879 * directly: the method is private, but we must allow it. This may be opening
8880 * a hole or the generics code should handle this differently.
8881 * Maybe just ensure the interface type is public.
8883 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
8889 * mono_method_can_access_method_full:
8890 * @method: The caller method
8891 * @called: The called method
8892 * @context_klass: The static type on stack of the owner @called object used
8894 * This function must be used with instance calls, as they have more strict family accessibility.
8895 * It can be used with static methods, but context_klass should be NULL.
8897 * Returns: TRUE if caller have proper visibility and acessibility to @called
8900 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
8902 MonoClass *access_class = method->klass;
8903 MonoClass *member_class = called->klass;
8904 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
8906 MonoClass *nested = access_class->nested_in;
8908 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
8911 nested = nested->nested_in;
8918 can = can_access_type (access_class, member_class);
8920 MonoClass *nested = access_class->nested_in;
8922 can = can_access_type (nested, member_class);
8925 nested = nested->nested_in;
8932 if (called->is_inflated) {
8933 MonoMethodInflated * infl = (MonoMethodInflated*)called;
8934 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
8943 * mono_method_can_access_field_full:
8944 * @method: The caller method
8945 * @field: The accessed field
8946 * @context_klass: The static type on stack of the owner @field object used
8948 * This function must be used with instance fields, as they have more strict family accessibility.
8949 * It can be used with static fields, but context_klass should be NULL.
8951 * Returns: TRUE if caller have proper visibility and acessibility to @field
8954 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
8956 MonoClass *access_class = method->klass;
8957 MonoClass *member_class = field->parent;
8958 /* FIXME: check all overlapping fields */
8959 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
8961 MonoClass *nested = access_class->nested_in;
8963 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
8966 nested = nested->nested_in;
8973 can = can_access_type (access_class, member_class);
8975 MonoClass *nested = access_class->nested_in;
8977 can = can_access_type (nested, member_class);
8980 nested = nested->nested_in;
8990 * mono_type_is_valid_enum_basetype:
8991 * @type: The MonoType to check
8993 * Returns: TRUE if the type can be used as the basetype of an enum
8995 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
8996 switch (type->type) {
8999 case MONO_TYPE_BOOLEAN:
9002 case MONO_TYPE_CHAR:
9015 * mono_class_is_valid_enum:
9016 * @klass: An enum class to be validated
9018 * This method verify the required properties an enum should have.
9020 * Returns: TRUE if the informed enum class is valid
9022 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
9023 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
9024 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
9026 gboolean mono_class_is_valid_enum (MonoClass *klass) {
9027 MonoClassField * field;
9028 gpointer iter = NULL;
9029 gboolean found_base_field = FALSE;
9031 g_assert (klass->enumtype);
9032 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
9033 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
9037 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
9040 while ((field = mono_class_get_fields (klass, &iter))) {
9041 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
9042 if (found_base_field)
9044 found_base_field = TRUE;
9045 if (!mono_type_is_valid_enum_basetype (field->type))
9050 if (!found_base_field)
9053 if (klass->method.count > 0)
9060 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
9062 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
9066 * mono_class_setup_interface_id:
9068 * Initializes MonoClass::interface_id if required.
9070 * LOCKING: Acquires the loader lock.
9073 mono_class_setup_interface_id (MonoClass *class)
9075 mono_loader_lock ();
9076 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
9077 class->interface_id = mono_get_unique_iid (class);
9078 mono_loader_unlock ();
9082 * mono_class_alloc_ext:
9084 * Allocate klass->ext if not already done.
9085 * LOCKING: Assumes the loader lock is held.
9088 mono_class_alloc_ext (MonoClass *klass)
9091 klass->ext = mono_class_alloc0 (klass, sizeof (MonoClassExt));
9092 class_ext_size += sizeof (MonoClassExt);
9097 * mono_class_setup_interfaces:
9099 * Initialize class->interfaces/interfaces_count.
9100 * LOCKING: Acquires the loader lock.
9101 * This function can fail the type.
9104 mono_class_setup_interfaces (MonoClass *klass, MonoError *error)
9108 mono_error_init (error);
9110 if (klass->interfaces_inited)
9113 mono_loader_lock ();
9115 if (klass->interfaces_inited) {
9116 mono_loader_unlock ();
9120 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
9123 /* generic IList, ICollection, IEnumerable */
9124 klass->interface_count = 1;
9125 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
9127 args [0] = &klass->element_class->byval_arg;
9128 klass->interfaces [0] = mono_class_bind_generic_parameters (
9129 mono_defaults.generic_ilist_class, 1, args, FALSE);
9130 } else if (klass->generic_class) {
9131 MonoClass *gklass = klass->generic_class->container_class;
9133 klass->interface_count = gklass->interface_count;
9134 klass->interfaces = mono_class_new0 (klass, MonoClass *, klass->interface_count);
9135 for (i = 0; i < klass->interface_count; i++) {
9136 klass->interfaces [i] = mono_class_inflate_generic_class_checked (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class), error);
9137 if (!mono_error_ok (error)) {
9138 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not setup the interfaces"));
9139 g_free (klass->interfaces);
9140 klass->interfaces = NULL;
9146 mono_memory_barrier ();
9148 klass->interfaces_inited = TRUE;
9150 mono_loader_unlock ();