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>
44 #include <mono/utils/mono-logger-internal.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);
66 static void mono_field_resolve_type (MonoClassField *field, MonoError *error);
67 static guint32 mono_field_resolve_flags (MonoClassField *field);
68 static void mono_class_setup_vtable_full (MonoClass *class, GList *in_setup);
71 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
72 void (*mono_debugger_class_loaded_methods_func) (MonoClass *klass) = NULL;
75 * mono_class_from_typeref:
77 * @type_token: a TypeRef token
79 * Creates the MonoClass* structure representing the type defined by
80 * the typeref token valid inside @image.
81 * Returns: the MonoClass* representing the typeref token, NULL ifcould
85 mono_class_from_typeref (MonoImage *image, guint32 type_token)
88 guint32 cols [MONO_TYPEREF_SIZE];
89 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
91 const char *name, *nspace;
95 if (!mono_verifier_verify_typeref_row (image, (type_token & 0xffffff) - 1, &error)) {
96 mono_trace_warning (MONO_TRACE_TYPE, "Failed to resolve typeref from %s due to '%s'", image->name, mono_error_get_message (&error));
100 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
102 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
103 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
105 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
106 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
107 case MONO_RESOLTION_SCOPE_MODULE:
109 g_error ("null ResolutionScope not yet handled");
110 /* a typedef in disguise */
111 return mono_class_from_name (image, nspace, name);
112 case MONO_RESOLTION_SCOPE_MODULEREF:
113 module = mono_image_load_module (image, idx);
115 return mono_class_from_name (module, nspace, name);
117 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
120 human_name = mono_stringify_assembly_name (&image->assembly->aname);
121 mono_loader_set_error_type_load (msg, human_name);
127 case MONO_RESOLTION_SCOPE_TYPEREF: {
128 MonoClass *enclosing;
131 if (idx == mono_metadata_token_index (type_token)) {
132 mono_loader_set_error_bad_image (g_strdup_printf ("Image %s with self-referencing typeref token %08x.", image->name, type_token));
136 enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
140 if (enclosing->nested_classes_inited && enclosing->ext) {
141 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
142 for (tmp = enclosing->ext->nested_classes; tmp; tmp = tmp->next) {
144 if (strcmp (res->name, name) == 0)
148 /* Don't call mono_class_init as we might've been called by it recursively */
149 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
151 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
152 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
153 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
155 if (strcmp (nname, name) == 0)
156 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
158 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
161 g_warning ("TypeRef ResolutionScope not yet handled (%d) for %s.%s in image %s", idx, nspace, name, image->name);
164 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
168 if (idx > image->tables [MONO_TABLE_ASSEMBLYREF].rows) {
169 mono_loader_set_error_bad_image (g_strdup_printf ("Image %s with invalid assemblyref token %08x.", image->name, idx));
173 if (!image->references || !image->references [idx - 1])
174 mono_assembly_load_reference (image, idx - 1);
175 g_assert (image->references [idx - 1]);
177 /* If the assembly did not load, register this as a type load exception */
178 if (image->references [idx - 1] == REFERENCE_MISSING){
179 MonoAssemblyName aname;
182 mono_assembly_get_assemblyref (image, idx - 1, &aname);
183 human_name = mono_stringify_assembly_name (&aname);
184 mono_loader_set_error_assembly_load (human_name, image->assembly ? image->assembly->ref_only : FALSE);
190 return mono_class_from_name (image->references [idx - 1]->image, nspace, name);
195 mono_image_memdup (MonoImage *image, void *data, guint size)
197 void *res = mono_image_alloc (image, size);
198 memcpy (res, data, size);
202 /* Copy everything mono_metadata_free_array free. */
204 mono_dup_array_type (MonoImage *image, MonoArrayType *a)
207 a = mono_image_memdup (image, a, sizeof (MonoArrayType));
209 a->sizes = mono_image_memdup (image, a->sizes, a->numsizes * sizeof (int));
211 a->lobounds = mono_image_memdup (image, a->lobounds, a->numlobounds * sizeof (int));
213 a = g_memdup (a, sizeof (MonoArrayType));
215 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
217 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
222 /* Copy everything mono_metadata_free_method_signature free. */
224 mono_metadata_signature_deep_dup (MonoImage *image, MonoMethodSignature *sig)
228 sig = mono_metadata_signature_dup_full (image, sig);
230 sig->ret = mono_metadata_type_dup (image, sig->ret);
231 for (i = 0; i < sig->param_count; ++i)
232 sig->params [i] = mono_metadata_type_dup (image, sig->params [i]);
238 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
240 MonoAssembly *ta = klass->image->assembly;
243 name = mono_stringify_assembly_name (&ta->aname);
244 g_string_append_printf (str, ", %s", name);
249 mono_type_name_check_byref (MonoType *type, GString *str)
252 g_string_append_c (str, '&');
256 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
257 MonoTypeNameFormat format)
261 switch (type->type) {
262 case MONO_TYPE_ARRAY: {
263 int i, rank = type->data.array->rank;
264 MonoTypeNameFormat nested_format;
266 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
267 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
269 mono_type_get_name_recurse (
270 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
271 g_string_append_c (str, '[');
273 g_string_append_c (str, '*');
274 for (i = 1; i < rank; i++)
275 g_string_append_c (str, ',');
276 g_string_append_c (str, ']');
278 mono_type_name_check_byref (type, str);
280 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
281 _mono_type_get_assembly_name (type->data.array->eklass, str);
284 case MONO_TYPE_SZARRAY: {
285 MonoTypeNameFormat nested_format;
287 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
288 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
290 mono_type_get_name_recurse (
291 &type->data.klass->byval_arg, str, FALSE, nested_format);
292 g_string_append (str, "[]");
294 mono_type_name_check_byref (type, str);
296 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
297 _mono_type_get_assembly_name (type->data.klass, str);
300 case MONO_TYPE_PTR: {
301 MonoTypeNameFormat nested_format;
303 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
304 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
306 mono_type_get_name_recurse (
307 type->data.type, str, FALSE, nested_format);
308 g_string_append_c (str, '*');
310 mono_type_name_check_byref (type, str);
312 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
313 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
318 if (!mono_generic_param_info (type->data.generic_param))
319 g_string_append_printf (str, "%s%d", type->type == MONO_TYPE_VAR ? "!" : "!!", type->data.generic_param->num);
321 g_string_append (str, mono_generic_param_info (type->data.generic_param)->name);
323 mono_type_name_check_byref (type, str);
327 klass = mono_class_from_mono_type (type);
328 if (klass->nested_in) {
329 mono_type_get_name_recurse (
330 &klass->nested_in->byval_arg, str, TRUE, format);
331 if (format == MONO_TYPE_NAME_FORMAT_IL)
332 g_string_append_c (str, '.');
334 g_string_append_c (str, '+');
335 } else if (*klass->name_space) {
336 g_string_append (str, klass->name_space);
337 g_string_append_c (str, '.');
339 if (format == MONO_TYPE_NAME_FORMAT_IL) {
340 char *s = strchr (klass->name, '`');
341 int len = s ? s - klass->name : strlen (klass->name);
343 g_string_append_len (str, klass->name, len);
345 g_string_append (str, klass->name);
348 if (klass->generic_class) {
349 MonoGenericClass *gclass = klass->generic_class;
350 MonoGenericInst *inst = gclass->context.class_inst;
351 MonoTypeNameFormat nested_format;
354 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
355 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
357 if (format == MONO_TYPE_NAME_FORMAT_IL)
358 g_string_append_c (str, '<');
360 g_string_append_c (str, '[');
361 for (i = 0; i < inst->type_argc; i++) {
362 MonoType *t = inst->type_argv [i];
365 g_string_append_c (str, ',');
366 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
367 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
368 g_string_append_c (str, '[');
369 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
370 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
371 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
372 g_string_append_c (str, ']');
374 if (format == MONO_TYPE_NAME_FORMAT_IL)
375 g_string_append_c (str, '>');
377 g_string_append_c (str, ']');
378 } else if (klass->generic_container &&
379 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
380 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
383 if (format == MONO_TYPE_NAME_FORMAT_IL)
384 g_string_append_c (str, '<');
386 g_string_append_c (str, '[');
387 for (i = 0; i < klass->generic_container->type_argc; i++) {
389 g_string_append_c (str, ',');
390 g_string_append (str, mono_generic_container_get_param_info (klass->generic_container, i)->name);
392 if (format == MONO_TYPE_NAME_FORMAT_IL)
393 g_string_append_c (str, '>');
395 g_string_append_c (str, ']');
398 mono_type_name_check_byref (type, str);
400 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
401 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
402 _mono_type_get_assembly_name (klass, str);
408 * mono_type_get_name_full:
410 * @format: the format for the return string.
413 * Returns: the string representation in a number of formats:
415 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
416 * returned in the formatrequired by System.Reflection, this is the
417 * inverse of mono_reflection_parse_type ().
419 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
420 * be used by the IL assembler.
422 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
424 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
427 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
431 result = g_string_new ("");
433 mono_type_get_name_recurse (type, result, FALSE, format);
435 return g_string_free (result, FALSE);
439 * mono_type_get_full_name:
442 * Returns: the string representation for type as required by System.Reflection.
443 * The inverse of mono_reflection_parse_type ().
446 mono_type_get_full_name (MonoClass *class)
448 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
452 * mono_type_get_name:
455 * Returns: the string representation for type as it would be represented in IL code.
458 mono_type_get_name (MonoType *type)
460 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
464 * mono_type_get_underlying_type:
467 * Returns: the MonoType for the underlying integer type if @type
468 * is an enum and byref is false, otherwise the type itself.
471 mono_type_get_underlying_type (MonoType *type)
473 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
474 return mono_class_enum_basetype (type->data.klass);
475 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
476 return mono_class_enum_basetype (type->data.generic_class->container_class);
481 * mono_class_is_open_constructed_type:
484 * Returns TRUE if type represents a generics open constructed type.
485 * IOW, not all type parameters required for the instantiation have
486 * been provided or it's a generic type definition.
488 * An open constructed type means it's a non realizable type. Not to
489 * be mixed up with an abstract type - we can't cast or dispatch to
490 * an open type, for example.
493 mono_class_is_open_constructed_type (MonoType *t)
499 case MONO_TYPE_SZARRAY:
500 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
501 case MONO_TYPE_ARRAY:
502 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
504 return mono_class_is_open_constructed_type (t->data.type);
505 case MONO_TYPE_GENERICINST:
506 return t->data.generic_class->context.class_inst->is_open;
507 case MONO_TYPE_CLASS:
508 case MONO_TYPE_VALUETYPE:
509 return t->data.klass->generic_container != NULL;
516 inflate_generic_type (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
518 mono_error_init (error);
520 switch (type->type) {
521 case MONO_TYPE_MVAR: {
523 int num = mono_type_get_generic_param_num (type);
524 MonoGenericInst *inst = context->method_inst;
525 if (!inst || !inst->type_argv)
527 if (num >= inst->type_argc) {
528 MonoGenericParamInfo *info = mono_generic_param_info (type->data.generic_param);
529 mono_error_set_bad_image (error, image, "MVAR %d (%s) cannot be expanded in this context with %d instantiations",
530 num, info ? info->name : "", inst->type_argc);
535 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
536 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
537 * ->byref and ->attrs from @type are propagated to the returned type.
539 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
540 nt->byref = type->byref;
541 nt->attrs = type->attrs;
544 case MONO_TYPE_VAR: {
546 int num = mono_type_get_generic_param_num (type);
547 MonoGenericInst *inst = context->class_inst;
550 if (num >= inst->type_argc) {
551 MonoGenericParamInfo *info = mono_generic_param_info (type->data.generic_param);
552 mono_error_set_bad_image (error, image, "VAR %d (%s) cannot be expanded in this context with %d instantiations",
553 num, info ? info->name : "", inst->type_argc);
556 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
557 nt->byref = type->byref;
558 nt->attrs = type->attrs;
561 case MONO_TYPE_SZARRAY: {
562 MonoClass *eclass = type->data.klass;
563 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context, error);
564 if (!inflated || !mono_error_ok (error))
566 nt = mono_metadata_type_dup (image, type);
567 nt->data.klass = mono_class_from_mono_type (inflated);
568 mono_metadata_free_type (inflated);
571 case MONO_TYPE_ARRAY: {
572 MonoClass *eclass = type->data.array->eklass;
573 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context, error);
574 if (!inflated || !mono_error_ok (error))
576 nt = mono_metadata_type_dup (image, type);
577 nt->data.array->eklass = mono_class_from_mono_type (inflated);
578 mono_metadata_free_type (inflated);
581 case MONO_TYPE_GENERICINST: {
582 MonoGenericClass *gclass = type->data.generic_class;
583 MonoGenericInst *inst;
585 if (!gclass->context.class_inst->is_open)
588 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context, error);
589 if (!mono_error_ok (error))
591 if (inst != gclass->context.class_inst)
592 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
594 if (gclass == type->data.generic_class)
597 nt = mono_metadata_type_dup (image, type);
598 nt->data.generic_class = gclass;
601 case MONO_TYPE_CLASS:
602 case MONO_TYPE_VALUETYPE: {
603 MonoClass *klass = type->data.klass;
604 MonoGenericContainer *container = klass->generic_container;
605 MonoGenericInst *inst;
606 MonoGenericClass *gclass = NULL;
612 /* We can't use context->class_inst directly, since it can have more elements */
613 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context, error);
614 if (!mono_error_ok (error))
616 if (inst == container->context.class_inst)
619 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
621 nt = mono_metadata_type_dup (image, type);
622 nt->type = MONO_TYPE_GENERICINST;
623 nt->data.generic_class = gclass;
633 mono_generic_class_get_context (MonoGenericClass *gclass)
635 return &gclass->context;
639 mono_class_get_context (MonoClass *class)
641 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
645 * mono_class_get_generic_container:
647 * Return the generic container of KLASS which should be a generic type definition.
649 MonoGenericContainer*
650 mono_class_get_generic_container (MonoClass *klass)
652 g_assert (klass->is_generic);
654 return klass->generic_container;
658 * mono_class_get_generic_class:
660 * Return the MonoGenericClass of KLASS, which should be a generic instance.
663 mono_class_get_generic_class (MonoClass *klass)
665 g_assert (klass->is_inflated);
667 return klass->generic_class;
671 * mono_class_inflate_generic_type_with_mempool:
672 * @mempool: a mempool
674 * @context: a generics context
675 * @error: error context
677 * The same as mono_class_inflate_generic_type, but allocates the MonoType
678 * from mempool if it is non-NULL. If it is NULL, the MonoType is
679 * allocated on the heap and is owned by the caller.
680 * The returned type can potentially be the same as TYPE, so it should not be
681 * modified by the caller, and it should be freed using mono_metadata_free_type ().
684 mono_class_inflate_generic_type_with_mempool (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
686 MonoType *inflated = NULL;
687 mono_error_init (error);
690 inflated = inflate_generic_type (image, type, context, error);
691 if (!mono_error_ok (error))
695 MonoType *shared = mono_metadata_get_shared_type (type);
700 return mono_metadata_type_dup (image, type);
704 mono_stats.inflated_type_count++;
709 * mono_class_inflate_generic_type:
711 * @context: a generics context
713 * If @type is a generic type and @context is not NULL, instantiate it using the
714 * generics context @context.
716 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
717 * on the heap and is owned by the caller. Returns NULL on error.
719 * @deprecated Please use mono_class_inflate_generic_type_checked instead
722 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
726 result = mono_class_inflate_generic_type_checked (type, context, &error);
728 if (!mono_error_ok (&error)) {
729 mono_error_cleanup (&error);
736 * mono_class_inflate_generic_type:
738 * @context: a generics context
739 * @error: error context to use
741 * If @type is a generic type and @context is not NULL, instantiate it using the
742 * generics context @context.
744 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
745 * on the heap and is owned by the caller.
748 mono_class_inflate_generic_type_checked (MonoType *type, MonoGenericContext *context, MonoError *error)
750 return mono_class_inflate_generic_type_with_mempool (NULL, type, context, error);
754 * mono_class_inflate_generic_type_no_copy:
756 * Same as inflate_generic_type_with_mempool, but return TYPE if no inflation
760 mono_class_inflate_generic_type_no_copy (MonoImage *image, MonoType *type, MonoGenericContext *context, MonoError *error)
762 MonoType *inflated = NULL;
764 mono_error_init (error);
766 inflated = inflate_generic_type (image, type, context, error);
767 if (!mono_error_ok (error))
774 mono_stats.inflated_type_count++;
779 mono_class_inflate_generic_class_checked (MonoClass *gklass, MonoGenericContext *context, MonoError *error)
784 inflated = mono_class_inflate_generic_type_checked (&gklass->byval_arg, context, error);
785 if (!mono_error_ok (error))
788 res = mono_class_from_mono_type (inflated);
789 mono_metadata_free_type (inflated);
794 * mono_class_inflate_generic_class:
796 * Inflate the class GKLASS with CONTEXT.
799 mono_class_inflate_generic_class (MonoClass *gklass, MonoGenericContext *context)
804 res = mono_class_inflate_generic_class_checked (gklass, context, &error);
805 g_assert (mono_error_ok (&error)); /*FIXME proper error handling*/
812 static MonoGenericContext
813 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with, MonoError *error)
815 MonoGenericInst *class_inst = NULL;
816 MonoGenericInst *method_inst = NULL;
817 MonoGenericContext res = { NULL, NULL };
819 mono_error_init (error);
821 if (context->class_inst) {
822 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with, error);
823 if (!mono_error_ok (error))
827 if (context->method_inst) {
828 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with, error);
829 if (!mono_error_ok (error))
833 res.class_inst = class_inst;
834 res.method_inst = method_inst;
840 * mono_class_inflate_generic_method:
841 * @method: a generic method
842 * @context: a generics context
844 * Instantiate the generic method @method using the generics context @context.
846 * Returns: the new instantiated method
849 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
851 return mono_class_inflate_generic_method_full (method, NULL, context);
855 * mono_class_inflate_generic_method_full:
857 * Instantiate method @method with the generic context @context.
858 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
859 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
862 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
865 MonoMethod *res = mono_class_inflate_generic_method_full_checked (method, klass_hint, context, &error);
866 if (!mono_error_ok (&error))
867 /*FIXME do proper error handling - on this case, kill this function. */
868 g_error ("Could not inflate generic method due to %s", mono_error_get_message (&error));
874 * mono_class_inflate_generic_method_full_checked:
875 * Same as mono_class_inflate_generic_method_full but return failure using @error.
878 mono_class_inflate_generic_method_full_checked (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context, MonoError *error)
881 MonoMethodInflated *iresult, *cached;
882 MonoMethodSignature *sig;
883 MonoGenericContext tmp_context;
884 gboolean is_mb_open = FALSE;
886 mono_error_init (error);
888 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
889 while (method->is_inflated) {
890 MonoGenericContext *method_context = mono_method_get_context (method);
891 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
893 tmp_context = inflate_generic_context (method_context, context, error);
894 if (!mono_error_ok (error))
896 context = &tmp_context;
898 if (mono_metadata_generic_context_equal (method_context, context))
901 method = imethod->declaring;
904 if (!method->is_generic && !method->klass->generic_container)
908 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
909 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
910 * This is opposite to the way non-SRE MethodInfos behave.
912 * This happens, for example, when we want to emit a recursive generic method. Given the following C# code:
914 * void Example<T> () {
918 * In Example, the method token must be encoded as: "void Example<!!0>()"
920 * The reference to the first generic argument, "!!0", must be explicit otherwise it won't be inflated
921 * properly. To get that we need to inflate the MethodBuilder with its own arguments.
923 * On the other hand, inflating a non-SRE generic method with its own arguments should
924 * return itself. For example:
926 * MethodInfo m = ... //m is a generic method definition
927 * MethodInfo res = m.MakeGenericMethod (m.GetGenericArguments ());
930 * To allow such scenarios we must allow inflation of MethodBuilder to happen in a diferent way than
931 * what happens with regular methods.
933 * There is one last touch to this madness, once a TypeBuilder is finished, IOW CreateType() is called,
934 * everything should behave like a regular type or method.
937 is_mb_open = method->is_generic &&
938 method->klass->image->dynamic && !method->klass->wastypebuilder && /* that is a MethodBuilder from an unfinished TypeBuilder */
939 context->method_inst == mono_method_get_generic_container (method)->context.method_inst; /* and it's been instantiated with its own arguments. */
941 iresult = g_new0 (MonoMethodInflated, 1);
942 iresult->context = *context;
943 iresult->declaring = method;
944 iresult->method.method.is_mb_open = is_mb_open;
946 if (!context->method_inst && method->is_generic)
947 iresult->context.method_inst = mono_method_get_generic_container (method)->context.method_inst;
949 if (!context->class_inst) {
950 g_assert (!iresult->declaring->klass->generic_class);
951 if (iresult->declaring->klass->generic_container)
952 iresult->context.class_inst = iresult->declaring->klass->generic_container->context.class_inst;
953 else if (iresult->declaring->klass->generic_class)
954 iresult->context.class_inst = iresult->declaring->klass->generic_class->context.class_inst;
958 cached = mono_method_inflated_lookup (iresult, FALSE);
960 mono_loader_unlock ();
962 return (MonoMethod*)cached;
965 mono_stats.inflated_method_count++;
967 inflated_methods_size += sizeof (MonoMethodInflated);
969 sig = mono_method_signature (method);
971 char *name = mono_type_get_full_name (method->klass);
972 mono_error_set_bad_image (error, method->klass->image, "Could not resolve signature of method %s:%s", name, method->name);
978 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
980 memcpy (&iresult->method.method, method, sizeof (MonoMethod));
983 result = (MonoMethod *) iresult;
984 result->is_inflated = TRUE;
985 result->is_generic = FALSE;
986 result->sre_method = FALSE;
987 result->signature = NULL;
988 result->is_mb_open = is_mb_open;
990 if (!context->method_inst) {
991 /* Set the generic_container of the result to the generic_container of method */
992 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
994 if (generic_container) {
995 result->is_generic = 1;
996 mono_method_set_generic_container (result, generic_container);
1000 if (!klass_hint || !klass_hint->generic_class ||
1001 klass_hint->generic_class->container_class != method->klass ||
1002 klass_hint->generic_class->context.class_inst != context->class_inst)
1005 if (method->klass->generic_container)
1006 result->klass = klass_hint;
1008 if (!result->klass) {
1009 MonoType *inflated = inflate_generic_type (NULL, &method->klass->byval_arg, context, error);
1010 if (!mono_error_ok (error))
1013 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
1015 mono_metadata_free_type (inflated);
1019 * FIXME: This should hold, but it doesn't:
1021 * if (result->is_inflated && mono_method_get_context (result)->method_inst &&
1022 * mono_method_get_context (result)->method_inst == mono_method_get_generic_container (((MonoMethodInflated*)result)->declaring)->context.method_inst) {
1023 * g_assert (result->is_generic);
1026 * Fixing this here causes other things to break, hence a very
1027 * ugly hack in mini-trampolines.c - see
1028 * is_generic_method_definition().
1031 mono_method_inflated_lookup (iresult, TRUE);
1032 mono_loader_unlock ();
1036 mono_loader_unlock ();
1042 * mono_get_inflated_method:
1044 * Obsolete. We keep it around since it's mentioned in the public API.
1047 mono_get_inflated_method (MonoMethod *method)
1053 * mono_method_get_context_general:
1055 * @uninflated: handle uninflated methods?
1057 * Returns the generic context of a method or NULL if it doesn't have
1058 * one. For an inflated method that's the context stored in the
1059 * method. Otherwise it's in the method's generic container or in the
1060 * generic container of the method's class.
1063 mono_method_get_context_general (MonoMethod *method, gboolean uninflated)
1065 if (method->is_inflated) {
1066 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
1067 return &imethod->context;
1071 if (method->is_generic)
1072 return &(mono_method_get_generic_container (method)->context);
1073 if (method->klass->generic_container)
1074 return &method->klass->generic_container->context;
1079 * mono_method_get_context:
1082 * Returns the generic context for method if it's inflated, otherwise
1086 mono_method_get_context (MonoMethod *method)
1088 return mono_method_get_context_general (method, FALSE);
1092 * mono_method_get_generic_container:
1094 * Returns the generic container of METHOD, which should be a generic method definition.
1095 * Returns NULL if METHOD is not a generic method definition.
1096 * LOCKING: Acquires the loader lock.
1098 MonoGenericContainer*
1099 mono_method_get_generic_container (MonoMethod *method)
1101 MonoGenericContainer *container;
1103 if (!method->is_generic)
1106 container = mono_image_property_lookup (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER);
1107 g_assert (container);
1113 * mono_method_set_generic_container:
1115 * Sets the generic container of METHOD to CONTAINER.
1116 * LOCKING: Acquires the loader lock.
1119 mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container)
1121 g_assert (method->is_generic);
1123 mono_image_property_insert (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER, container);
1127 * mono_class_find_enum_basetype:
1128 * @class: The enum class
1130 * Determine the basetype of an enum by iterating through its fields. We do this
1131 * in a separate function since it is cheaper than calling mono_class_setup_fields.
1134 mono_class_find_enum_basetype (MonoClass *class)
1136 MonoGenericContainer *container = NULL;
1137 MonoImage *m = class->image;
1138 const int top = class->field.count;
1141 g_assert (class->enumtype);
1143 if (class->generic_container)
1144 container = class->generic_container;
1145 else if (class->generic_class) {
1146 MonoClass *gklass = class->generic_class->container_class;
1148 container = gklass->generic_container;
1149 g_assert (container);
1153 * Fetch all the field information.
1155 for (i = 0; i < top; i++){
1157 guint32 cols [MONO_FIELD_SIZE];
1158 int idx = class->field.first + i;
1161 /* class->field.first and idx points into the fieldptr table */
1162 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1164 if (cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC) //no need to decode static fields
1167 if (!mono_verifier_verify_field_signature (class->image, cols [MONO_FIELD_SIGNATURE], NULL))
1170 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1171 mono_metadata_decode_value (sig, &sig);
1172 /* FIELD signature == 0x06 */
1176 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1179 if (class->generic_class) {
1180 //FIXME do we leak here?
1181 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
1182 ftype->attrs = cols [MONO_FIELD_FLAGS];
1192 * Checks for MonoClass::exception_type without resolving all MonoType's into MonoClass'es
1195 mono_type_has_exceptions (MonoType *type)
1197 switch (type->type) {
1198 case MONO_TYPE_CLASS:
1199 case MONO_TYPE_VALUETYPE:
1200 case MONO_TYPE_SZARRAY:
1201 return type->data.klass->exception_type;
1202 case MONO_TYPE_ARRAY:
1203 return type->data.array->eklass->exception_type;
1204 case MONO_TYPE_GENERICINST:
1205 return mono_generic_class_get_class (type->data.generic_class)->exception_type;
1213 * Allocate memory for some data belonging to CLASS, either from its image's mempool,
1217 mono_class_alloc (MonoClass *class, int size)
1219 if (class->generic_class)
1221 * This should be freed in free_generic_class () in metadata.c.
1222 * FIXME: It would be better to allocate this from the image set mempool, by
1223 * adding an image_set field to MonoGenericClass.
1225 return g_malloc (size);
1227 return mono_image_alloc (class->image, size);
1231 mono_class_alloc0 (MonoClass *class, int size)
1235 res = mono_class_alloc (class, size);
1236 memset (res, 0, size);
1240 #define mono_class_new0(class,struct_type, n_structs) \
1241 ((struct_type *) mono_class_alloc0 ((class), ((gsize) sizeof (struct_type)) * ((gsize) (n_structs))))
1244 * mono_class_setup_basic_field_info:
1245 * @class: The class to initialize
1247 * Initializes the class->fields.
1248 * LOCKING: Assumes the loader lock is held.
1251 mono_class_setup_basic_field_info (MonoClass *class)
1253 MonoClassField *field;
1261 gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
1262 image = class->image;
1263 top = class->field.count;
1265 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1267 * This happens when a generic instance of an unfinished generic typebuilder
1268 * is used as an element type for creating an array type. We can't initialize
1269 * the fields of this class using the fields of gklass, since gklass is not
1270 * finished yet, fields could be added to it later.
1276 mono_class_setup_basic_field_info (gtd);
1278 top = gtd->field.count;
1279 class->field.first = gtd->field.first;
1280 class->field.count = gtd->field.count;
1283 class->fields = mono_class_alloc0 (class, sizeof (MonoClassField) * top);
1286 * Fetch all the field information.
1288 for (i = 0; i < top; i++){
1289 field = &class->fields [i];
1290 field->parent = class;
1293 field->name = mono_field_get_name (>d->fields [i]);
1295 int idx = class->field.first + i;
1296 /* class->field.first and idx points into the fieldptr table */
1297 guint32 name_idx = mono_metadata_decode_table_row_col (image, MONO_TABLE_FIELD, idx, MONO_FIELD_NAME);
1298 /* The name is needed for fieldrefs */
1299 field->name = mono_metadata_string_heap (image, name_idx);
1305 * mono_class_setup_fields:
1306 * @class: The class to initialize
1308 * Initializes the class->fields.
1309 * LOCKING: Assumes the loader lock is held.
1312 mono_class_setup_fields (MonoClass *class)
1315 MonoImage *m = class->image;
1317 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1318 int i, blittable = TRUE;
1319 guint32 real_size = 0;
1320 guint32 packing_size = 0;
1321 gboolean explicit_size;
1322 MonoClassField *field;
1323 MonoGenericContainer *container = NULL;
1324 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
1326 if (class->size_inited)
1329 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1331 * This happens when a generic instance of an unfinished generic typebuilder
1332 * is used as an element type for creating an array type. We can't initialize
1333 * the fields of this class using the fields of gklass, since gklass is not
1334 * finished yet, fields could be added to it later.
1339 mono_class_setup_basic_field_info (class);
1340 top = class->field.count;
1343 mono_class_setup_fields (gtd);
1344 if (gtd->exception_type) {
1345 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1350 class->instance_size = 0;
1352 class->sizes.class_size = 0;
1354 if (class->parent) {
1355 /* For generic instances, class->parent might not have been initialized */
1356 mono_class_init (class->parent);
1357 if (!class->parent->size_inited) {
1358 mono_class_setup_fields (class->parent);
1359 if (class->parent->exception_type) {
1360 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1364 class->instance_size += class->parent->instance_size;
1365 class->min_align = class->parent->min_align;
1366 /* we use |= since it may have been set already */
1367 class->has_references |= class->parent->has_references;
1368 blittable = class->parent->blittable;
1370 class->instance_size = sizeof (MonoObject);
1371 class->min_align = 1;
1374 /* We can't really enable 16 bytes alignment until the GC supports it.
1375 The whole layout/instance size code must be reviewed because we do alignment calculation in terms of the
1376 boxed instance, which leads to unexplainable holes at the beginning of an object embedding a simd type.
1377 Bug #506144 is an example of this issue.
1379 if (class->simd_type)
1380 class->min_align = 16;
1382 /* Get the real size */
1383 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
1385 if (explicit_size) {
1386 g_assert ((packing_size & 0xfffffff0) == 0);
1387 class->packing_size = packing_size;
1388 real_size += class->instance_size;
1392 if (explicit_size && real_size) {
1393 class->instance_size = MAX (real_size, class->instance_size);
1395 class->size_inited = 1;
1396 class->blittable = blittable;
1400 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1403 /* Prevent infinite loops if the class references itself */
1404 class->size_inited = 1;
1406 if (class->generic_container) {
1407 container = class->generic_container;
1409 container = gtd->generic_container;
1410 g_assert (container);
1414 * Fetch all the field information.
1416 for (i = 0; i < top; i++){
1417 int idx = class->field.first + i;
1418 field = &class->fields [i];
1420 field->parent = class;
1423 mono_field_resolve_type (field, &error);
1424 if (!mono_error_ok (&error)) {
1425 /*mono_field_resolve_type already failed class*/
1426 mono_error_cleanup (&error);
1430 g_error ("could not resolve %s:%s\n", mono_type_get_full_name(class), field->name);
1431 g_assert (field->type);
1434 if (mono_field_is_deleted (field))
1437 MonoClassField *gfield = >d->fields [i];
1438 field->offset = gfield->offset;
1440 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1442 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1443 field->offset = offset;
1445 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1446 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Missing field layout info for %s", field->name));
1449 if (field->offset < -1) { /*-1 is used to encode special static fields */
1450 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Invalid negative field offset %d for %s", field->offset, field->name));
1456 /* Only do these checks if we still think this type is blittable */
1457 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1458 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1461 MonoClass *field_class = mono_class_from_mono_type (field->type);
1463 mono_class_setup_fields (field_class);
1464 if (field_class->exception_type) {
1465 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1469 if (!field_class || !field_class->blittable)
1474 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1475 class->cast_class = class->element_class = mono_class_from_mono_type (field->type);
1476 blittable = class->element_class->blittable;
1479 if (mono_type_has_exceptions (field->type)) {
1480 char *class_name = mono_type_get_full_name (class);
1481 char *type_name = mono_type_full_name (field->type);
1483 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1484 g_warning ("Invalid type %s for instance field %s:%s", type_name, class_name, field->name);
1485 g_free (class_name);
1489 /* The def_value of fields is compute lazily during vtable creation */
1492 if (class == mono_defaults.string_class)
1495 class->blittable = blittable;
1497 if (class->enumtype && !mono_class_enum_basetype (class)) {
1498 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1501 if (explicit_size && real_size) {
1502 class->instance_size = MAX (real_size, class->instance_size);
1505 if (class->exception_type)
1507 mono_class_layout_fields (class);
1509 /*valuetypes can't be neither bigger than 1Mb or empty. */
1510 if (class->valuetype && (class->instance_size <= 0 || class->instance_size > (0x100000 + sizeof (MonoObject))))
1511 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1515 * mono_class_setup_fields_locking:
1516 * @class: The class to initialize
1518 * Initializes the class->fields array of fields.
1519 * Aquires the loader lock.
1522 mono_class_setup_fields_locking (MonoClass *class)
1524 mono_loader_lock ();
1525 mono_class_setup_fields (class);
1526 mono_loader_unlock ();
1530 * mono_class_has_references:
1532 * Returns whenever @klass->has_references is set, initializing it if needed.
1533 * Aquires the loader lock.
1536 mono_class_has_references (MonoClass *klass)
1538 if (klass->init_pending) {
1539 /* Be conservative */
1542 mono_class_init (klass);
1544 return klass->has_references;
1548 /* useful until we keep track of gc-references in corlib etc. */
1550 #define IS_GC_REFERENCE(t) FALSE
1552 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1556 * mono_type_get_basic_type_from_generic:
1559 * Returns a closed type corresponding to the possibly open type
1563 mono_type_get_basic_type_from_generic (MonoType *type)
1565 /* When we do generic sharing we let type variables stand for reference types. */
1566 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1567 return &mono_defaults.object_class->byval_arg;
1572 * mono_class_layout_fields:
1575 * Compute the placement of fields inside an object or struct, according to
1576 * the layout rules and set the following fields in @class:
1577 * - has_references (if the class contains instance references firled or structs that contain references)
1578 * - has_static_refs (same, but for static fields)
1579 * - instance_size (size of the object in memory)
1580 * - class_size (size needed for the static fields)
1581 * - size_inited (flag set when the instance_size is set)
1583 * LOCKING: this is supposed to be called with the loader lock held.
1586 mono_class_layout_fields (MonoClass *class)
1589 const int top = class->field.count;
1590 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1591 guint32 pass, passes, real_size;
1592 gboolean gc_aware_layout = FALSE;
1593 MonoClassField *field;
1596 * When we do generic sharing we need to have layout
1597 * information for open generic classes (either with a generic
1598 * context containing type variables or with a generic
1599 * container), so we don't return in that case anymore.
1603 * Enable GC aware auto layout: in this mode, reference
1604 * fields are grouped together inside objects, increasing collector
1606 * Requires that all classes whose layout is known to native code be annotated
1607 * with [StructLayout (LayoutKind.Sequential)]
1608 * Value types have gc_aware_layout disabled by default, as per
1609 * what the default is for other runtimes.
1611 /* corlib is missing [StructLayout] directives in many places */
1612 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1613 if (class->image != mono_defaults.corlib &&
1614 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1615 gc_aware_layout = TRUE;
1616 /* from System.dll, used in metadata/process.h */
1617 if (strcmp (class->name, "ProcessStartInfo") == 0)
1618 gc_aware_layout = FALSE;
1621 /* Compute klass->has_references */
1623 * Process non-static fields first, since static fields might recursively
1624 * refer to the class itself.
1626 for (i = 0; i < top; i++) {
1629 field = &class->fields [i];
1631 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1632 ftype = mono_type_get_underlying_type (field->type);
1633 ftype = mono_type_get_basic_type_from_generic (ftype);
1634 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1635 class->has_references = TRUE;
1639 for (i = 0; i < top; i++) {
1642 field = &class->fields [i];
1644 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1645 ftype = mono_type_get_underlying_type (field->type);
1646 ftype = mono_type_get_basic_type_from_generic (ftype);
1647 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1648 class->has_static_refs = TRUE;
1652 for (i = 0; i < top; i++) {
1655 field = &class->fields [i];
1657 ftype = mono_type_get_underlying_type (field->type);
1658 ftype = mono_type_get_basic_type_from_generic (ftype);
1659 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1660 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1661 class->has_static_refs = TRUE;
1663 class->has_references = TRUE;
1668 * Compute field layout and total size (not considering static fields)
1672 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1673 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1675 if (gc_aware_layout)
1680 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1684 real_size = class->parent->instance_size;
1686 real_size = sizeof (MonoObject);
1688 for (pass = 0; pass < passes; ++pass) {
1689 for (i = 0; i < top; i++){
1694 field = &class->fields [i];
1696 if (mono_field_is_deleted (field))
1698 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1701 ftype = mono_type_get_underlying_type (field->type);
1702 ftype = mono_type_get_basic_type_from_generic (ftype);
1703 if (gc_aware_layout) {
1704 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1713 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1714 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1715 /* This field is a hack inserted by MCS to empty structures */
1719 size = mono_type_size (field->type, &align);
1721 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1722 align = class->packing_size ? MIN (class->packing_size, align): align;
1723 /* if the field has managed references, we need to force-align it
1726 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1727 align = MAX (align, sizeof (gpointer));
1729 class->min_align = MAX (align, class->min_align);
1730 field->offset = real_size;
1732 field->offset += align - 1;
1733 field->offset &= ~(align - 1);
1735 /*TypeBuilders produce all sort of weird things*/
1736 g_assert (class->image->dynamic || field->offset > 0);
1737 real_size = field->offset + size;
1740 class->instance_size = MAX (real_size, class->instance_size);
1742 if (class->instance_size & (class->min_align - 1)) {
1743 class->instance_size += class->min_align - 1;
1744 class->instance_size &= ~(class->min_align - 1);
1748 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1750 for (i = 0; i < top; i++) {
1755 field = &class->fields [i];
1758 * There must be info about all the fields in a type if it
1759 * uses explicit layout.
1762 if (mono_field_is_deleted (field))
1764 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1767 size = mono_type_size (field->type, &align);
1768 class->min_align = MAX (align, class->min_align);
1771 * When we get here, field->offset is already set by the
1772 * loader (for either runtime fields or fields loaded from metadata).
1773 * The offset is from the start of the object: this works for both
1774 * classes and valuetypes.
1776 field->offset += sizeof (MonoObject);
1777 ftype = mono_type_get_underlying_type (field->type);
1778 ftype = mono_type_get_basic_type_from_generic (ftype);
1779 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1780 if (field->offset % sizeof (gpointer)) {
1781 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1788 real_size = MAX (real_size, size + field->offset);
1790 class->instance_size = MAX (real_size, class->instance_size);
1794 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1796 * For small structs, set min_align to at least the struct size to improve
1797 * performance, and since the JIT memset/memcpy code assumes this and generates
1798 * unaligned accesses otherwise. See #78990 for a testcase.
1800 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1801 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1804 class->size_inited = 1;
1807 * Compute static field layout and size
1809 for (i = 0; i < top; i++){
1813 field = &class->fields [i];
1815 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1817 if (mono_field_is_deleted (field))
1820 if (mono_type_has_exceptions (field->type)) {
1821 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1825 size = mono_type_size (field->type, &align);
1826 field->offset = class->sizes.class_size;
1827 /*align is always non-zero here*/
1828 field->offset += align - 1;
1829 field->offset &= ~(align - 1);
1830 class->sizes.class_size = field->offset + size;
1835 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1839 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1840 method->klass = class;
1841 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1842 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1843 method->signature = sig;
1844 method->name = name;
1847 if (name [0] == '.') {
1848 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1850 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1856 * mono_class_setup_methods:
1859 * Initializes the 'methods' array in the klass.
1860 * Calling this method should be avoided if possible since it allocates a lot
1861 * of long-living MonoMethod structures.
1862 * Methods belonging to an interface are assigned a sequential slot starting
1865 * On failure this function sets class->exception_type
1868 mono_class_setup_methods (MonoClass *class)
1871 MonoMethod **methods;
1876 mono_loader_lock ();
1878 if (class->methods) {
1879 mono_loader_unlock ();
1883 if (class->generic_class) {
1885 MonoClass *gklass = class->generic_class->container_class;
1887 mono_class_init (gklass);
1888 if (!gklass->exception_type)
1889 mono_class_setup_methods (gklass);
1890 if (gklass->exception_type) {
1891 /*FIXME make exception_data less opaque so it's possible to dup it here*/
1892 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
1893 mono_loader_unlock ();
1897 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1898 class->method.count = gklass->method.count;
1899 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * (class->method.count + 1));
1901 for (i = 0; i < class->method.count; i++) {
1902 methods [i] = mono_class_inflate_generic_method_full_checked (
1903 gklass->methods [i], class, mono_class_get_context (class), &error);
1904 if (!mono_error_ok (&error)) {
1905 char *method = mono_method_full_name (gklass->methods [i], TRUE);
1906 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)));
1909 mono_error_cleanup (&error);
1910 mono_loader_unlock ();
1914 } else if (class->rank) {
1916 MonoMethod *amethod;
1917 MonoMethodSignature *sig;
1918 int count_generic = 0, first_generic = 0;
1921 class->method.count = 3 + (class->rank > 1? 2: 1);
1923 mono_class_setup_interfaces (class, &error);
1924 g_assert (mono_error_ok (&error)); /*FIXME can this fail for array types?*/
1926 if (class->interface_count) {
1927 count_generic = generic_array_methods (class);
1928 first_generic = class->method.count;
1929 class->method.count += class->interface_count * count_generic;
1932 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * class->method.count);
1934 sig = mono_metadata_signature_alloc (class->image, class->rank);
1935 sig->ret = &mono_defaults.void_class->byval_arg;
1936 sig->pinvoke = TRUE;
1937 sig->hasthis = TRUE;
1938 for (i = 0; i < class->rank; ++i)
1939 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1941 amethod = create_array_method (class, ".ctor", sig);
1942 methods [method_num++] = amethod;
1943 if (class->rank > 1) {
1944 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1945 sig->ret = &mono_defaults.void_class->byval_arg;
1946 sig->pinvoke = TRUE;
1947 sig->hasthis = TRUE;
1948 for (i = 0; i < class->rank * 2; ++i)
1949 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1951 amethod = create_array_method (class, ".ctor", sig);
1952 methods [method_num++] = amethod;
1954 /* element Get (idx11, [idx2, ...]) */
1955 sig = mono_metadata_signature_alloc (class->image, class->rank);
1956 sig->ret = &class->element_class->byval_arg;
1957 sig->pinvoke = TRUE;
1958 sig->hasthis = TRUE;
1959 for (i = 0; i < class->rank; ++i)
1960 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1961 amethod = create_array_method (class, "Get", sig);
1962 methods [method_num++] = amethod;
1963 /* element& Address (idx11, [idx2, ...]) */
1964 sig = mono_metadata_signature_alloc (class->image, class->rank);
1965 sig->ret = &class->element_class->this_arg;
1966 sig->pinvoke = TRUE;
1967 sig->hasthis = TRUE;
1968 for (i = 0; i < class->rank; ++i)
1969 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1970 amethod = create_array_method (class, "Address", sig);
1971 methods [method_num++] = amethod;
1972 /* void Set (idx11, [idx2, ...], element) */
1973 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1974 sig->ret = &mono_defaults.void_class->byval_arg;
1975 sig->pinvoke = TRUE;
1976 sig->hasthis = TRUE;
1977 for (i = 0; i < class->rank; ++i)
1978 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1979 sig->params [i] = &class->element_class->byval_arg;
1980 amethod = create_array_method (class, "Set", sig);
1981 methods [method_num++] = amethod;
1983 for (i = 0; i < class->interface_count; i++)
1984 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1986 methods = mono_class_alloc (class, sizeof (MonoMethod*) * class->method.count);
1987 for (i = 0; i < class->method.count; ++i) {
1988 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1989 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1993 if (MONO_CLASS_IS_INTERFACE (class)) {
1995 /*Only assign slots to virtual methods as interfaces are allowed to have static methods.*/
1996 for (i = 0; i < class->method.count; ++i) {
1997 if (methods [i]->flags & METHOD_ATTRIBUTE_VIRTUAL)
1998 methods [i]->slot = slot++;
2002 /* Needed because of the double-checking locking pattern */
2003 mono_memory_barrier ();
2005 class->methods = methods;
2007 if (mono_debugger_class_loaded_methods_func)
2008 mono_debugger_class_loaded_methods_func (class);
2010 mono_loader_unlock ();
2014 * mono_class_get_method_by_index:
2016 * Returns class->methods [index], initializing class->methods if neccesary.
2018 * LOCKING: Acquires the loader lock.
2021 mono_class_get_method_by_index (MonoClass *class, int index)
2023 /* Avoid calling setup_methods () if possible */
2024 if (class->generic_class && !class->methods) {
2025 MonoClass *gklass = class->generic_class->container_class;
2028 m = mono_class_inflate_generic_method_full (
2029 gklass->methods [index], class, mono_class_get_context (class));
2031 * If setup_methods () is called later for this class, no duplicates are created,
2032 * since inflate_generic_method guarantees that only one instance of a method
2033 * is created for each context.
2036 mono_class_setup_methods (class);
2037 g_assert (m == class->methods [index]);
2041 mono_class_setup_methods (class);
2042 if (class->exception_type) /*FIXME do proper error handling*/
2044 g_assert (index >= 0 && index < class->method.count);
2045 return class->methods [index];
2050 * mono_class_get_inflated_method:
2052 * Given an inflated class CLASS and a method METHOD which should be a method of
2053 * CLASS's generic definition, return the inflated method corresponding to METHOD.
2056 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
2058 MonoClass *gklass = class->generic_class->container_class;
2061 g_assert (method->klass == gklass);
2063 mono_class_setup_methods (gklass);
2064 g_assert (!gklass->exception_type); /*FIXME do proper error handling*/
2066 for (i = 0; i < gklass->method.count; ++i) {
2067 if (gklass->methods [i] == method) {
2069 return class->methods [i];
2071 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
2079 * mono_class_get_vtable_entry:
2081 * Returns class->vtable [offset], computing it if neccesary. Returns NULL on failure.
2082 * LOCKING: Acquires the loader lock.
2085 mono_class_get_vtable_entry (MonoClass *class, int offset)
2089 if (class->rank == 1) {
2091 * szarrays do not overwrite any methods of Array, so we can avoid
2092 * initializing their vtables in some cases.
2094 mono_class_setup_vtable (class->parent);
2095 if (offset < class->parent->vtable_size)
2096 return class->parent->vtable [offset];
2099 if (class->generic_class) {
2100 MonoClass *gklass = class->generic_class->container_class;
2101 mono_class_setup_vtable (gklass);
2102 m = gklass->vtable [offset];
2104 m = mono_class_inflate_generic_method_full (m, class, mono_class_get_context (class));
2106 mono_class_setup_vtable (class);
2107 if (class->exception_type)
2109 m = class->vtable [offset];
2116 * mono_class_get_vtable_size:
2118 * Return the vtable size for KLASS.
2121 mono_class_get_vtable_size (MonoClass *klass)
2123 mono_class_setup_vtable (klass);
2125 return klass->vtable_size;
2128 /*This method can fail the class.*/
2130 mono_class_setup_properties (MonoClass *class)
2132 guint startm, endm, i, j;
2133 guint32 cols [MONO_PROPERTY_SIZE];
2134 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2135 MonoProperty *properties;
2138 if (class->ext && class->ext->properties)
2141 mono_loader_lock ();
2143 if (class->ext && class->ext->properties) {
2144 mono_loader_unlock ();
2148 mono_class_alloc_ext (class);
2150 if (class->generic_class) {
2151 MonoClass *gklass = class->generic_class->container_class;
2153 mono_class_init (gklass);
2154 mono_class_setup_properties (gklass);
2155 if (gklass->exception_type) {
2156 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2157 mono_loader_unlock ();
2161 class->ext->property = gklass->ext->property;
2163 properties = mono_class_new0 (class, MonoProperty, class->ext->property.count + 1);
2165 for (i = 0; i < class->ext->property.count; i++) {
2166 MonoProperty *prop = &properties [i];
2168 *prop = gklass->ext->properties [i];
2171 prop->get = mono_class_inflate_generic_method_full (
2172 prop->get, class, mono_class_get_context (class));
2174 prop->set = mono_class_inflate_generic_method_full (
2175 prop->set, class, mono_class_get_context (class));
2177 prop->parent = class;
2180 int first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2181 int count = last - first;
2184 mono_class_setup_methods (class);
2185 if (class->exception_type) {
2186 mono_loader_unlock ();
2191 class->ext->property.first = first;
2192 class->ext->property.count = count;
2193 properties = mono_class_alloc0 (class, sizeof (MonoProperty) * count);
2194 for (i = first; i < last; ++i) {
2195 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
2196 properties [i - first].parent = class;
2197 properties [i - first].attrs = cols [MONO_PROPERTY_FLAGS];
2198 properties [i - first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
2200 startm = mono_metadata_methods_from_property (class->image, i, &endm);
2201 for (j = startm; j < endm; ++j) {
2204 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2206 if (class->image->uncompressed_metadata)
2207 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2208 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2210 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2212 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2213 case METHOD_SEMANTIC_SETTER:
2214 properties [i - first].set = method;
2216 case METHOD_SEMANTIC_GETTER:
2217 properties [i - first].get = method;
2225 /*Flush any pending writes as we do double checked locking on class->properties */
2226 mono_memory_barrier ();
2228 /* Leave this assignment as the last op in the function */
2229 class->ext->properties = properties;
2231 mono_loader_unlock ();
2235 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
2237 MonoMethod **om, **retval;
2240 for (om = methods, count = 0; *om; ++om, ++count)
2243 retval = g_new0 (MonoMethod*, count + 1);
2245 for (om = methods, count = 0; *om; ++om, ++count)
2246 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
2251 /*This method can fail the class.*/
2253 mono_class_setup_events (MonoClass *class)
2256 guint startm, endm, i, j;
2257 guint32 cols [MONO_EVENT_SIZE];
2258 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2262 if (class->ext && class->ext->events)
2265 mono_loader_lock ();
2267 if (class->ext && class->ext->events) {
2268 mono_loader_unlock ();
2272 mono_class_alloc_ext (class);
2274 if (class->generic_class) {
2275 MonoClass *gklass = class->generic_class->container_class;
2276 MonoGenericContext *context;
2278 mono_class_setup_events (gklass);
2279 if (gklass->exception_type) {
2280 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2281 mono_loader_unlock ();
2285 class->ext->event = gklass->ext->event;
2286 class->ext->events = mono_class_new0 (class, MonoEvent, class->ext->event.count);
2288 if (class->ext->event.count)
2289 context = mono_class_get_context (class);
2291 for (i = 0; i < class->ext->event.count; i++) {
2292 MonoEvent *event = &class->ext->events [i];
2293 MonoEvent *gevent = &gklass->ext->events [i];
2295 event->parent = class;
2296 event->name = gevent->name;
2297 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
2298 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
2299 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
2300 #ifndef MONO_SMALL_CONFIG
2301 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
2303 event->attrs = gevent->attrs;
2306 mono_loader_unlock ();
2310 first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2311 count = last - first;
2314 mono_class_setup_methods (class);
2315 if (class->exception_type) {
2316 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2317 mono_loader_unlock ();
2321 class->ext->event.first = first;
2322 class->ext->event.count = count;
2323 events = mono_class_alloc0 (class, sizeof (MonoEvent) * class->ext->event.count);
2324 for (i = first; i < last; ++i) {
2325 MonoEvent *event = &events [i - first];
2327 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
2328 event->parent = class;
2329 event->attrs = cols [MONO_EVENT_FLAGS];
2330 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
2332 startm = mono_metadata_methods_from_event (class->image, i, &endm);
2333 for (j = startm; j < endm; ++j) {
2336 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2338 if (class->image->uncompressed_metadata)
2339 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2340 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2342 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2344 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2345 case METHOD_SEMANTIC_ADD_ON:
2346 event->add = method;
2348 case METHOD_SEMANTIC_REMOVE_ON:
2349 event->remove = method;
2351 case METHOD_SEMANTIC_FIRE:
2352 event->raise = method;
2354 case METHOD_SEMANTIC_OTHER: {
2355 #ifndef MONO_SMALL_CONFIG
2358 if (event->other == NULL) {
2359 event->other = g_new0 (MonoMethod*, 2);
2361 while (event->other [n])
2363 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
2365 event->other [n] = method;
2366 /* NULL terminated */
2367 event->other [n + 1] = NULL;
2376 /*Flush any pending writes as we do double checked locking on class->properties */
2377 mono_memory_barrier ();
2379 /* Leave this assignment as the last op in the function */
2380 class->ext->events = events;
2382 mono_loader_unlock ();
2386 * Global pool of interface IDs, represented as a bitset.
2387 * LOCKING: this is supposed to be accessed with the loader lock held.
2389 static MonoBitSet *global_interface_bitset = NULL;
2392 * mono_unload_interface_ids:
2393 * @bitset: bit set of interface IDs
2395 * When an image is unloaded, the interface IDs associated with
2396 * the image are put back in the global pool of IDs so the numbers
2400 mono_unload_interface_ids (MonoBitSet *bitset)
2402 mono_loader_lock ();
2403 mono_bitset_sub (global_interface_bitset, bitset);
2404 mono_loader_unlock ();
2408 * mono_get_unique_iid:
2411 * Assign a unique integer ID to the interface represented by @class.
2412 * The ID will positive and as small as possible.
2413 * LOCKING: this is supposed to be called with the loader lock held.
2414 * Returns: the new ID.
2417 mono_get_unique_iid (MonoClass *class)
2421 g_assert (MONO_CLASS_IS_INTERFACE (class));
2423 if (!global_interface_bitset) {
2424 global_interface_bitset = mono_bitset_new (128, 0);
2427 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2429 int old_size = mono_bitset_size (global_interface_bitset);
2430 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2431 mono_bitset_free (global_interface_bitset);
2432 global_interface_bitset = new_set;
2435 mono_bitset_set (global_interface_bitset, iid);
2436 /* set the bit also in the per-image set */
2437 if (class->image->interface_bitset) {
2438 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2439 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2440 mono_bitset_free (class->image->interface_bitset);
2441 class->image->interface_bitset = new_set;
2444 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2446 mono_bitset_set (class->image->interface_bitset, iid);
2448 #ifndef MONO_SMALL_CONFIG
2449 if (mono_print_vtable) {
2451 char *type_name = mono_type_full_name (&class->byval_arg);
2452 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2453 generic_id = class->generic_class->context.class_inst->id;
2454 g_assert (generic_id != 0);
2458 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2463 g_assert (iid <= 65535);
2468 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res, MonoError *error)
2473 mono_class_setup_interfaces (klass, error);
2474 if (!mono_error_ok (error))
2477 for (i = 0; i < klass->interface_count; i++) {
2478 ic = klass->interfaces [i];
2481 *res = g_ptr_array_new ();
2482 g_ptr_array_add (*res, ic);
2483 mono_class_init (ic);
2484 if (ic->exception_type) {
2485 mono_error_set_type_load_class (error, ic, "Error Loading class");
2489 collect_implemented_interfaces_aux (ic, res, error);
2490 if (!mono_error_ok (error))
2496 mono_class_get_implemented_interfaces (MonoClass *klass, MonoError *error)
2498 GPtrArray *res = NULL;
2500 collect_implemented_interfaces_aux (klass, &res, error);
2501 if (!mono_error_ok (error)) {
2503 g_ptr_array_free (res, TRUE);
2510 compare_interface_ids (const void *p_key, const void *p_element) {
2511 const MonoClass *key = p_key;
2512 const MonoClass *element = *(MonoClass**) p_element;
2514 return (key->interface_id - element->interface_id);
2517 /*FIXME verify all callers if they should switch to mono_class_interface_offset_with_variance*/
2519 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2520 MonoClass **result = bsearch (
2522 klass->interfaces_packed,
2523 klass->interface_offsets_count,
2524 sizeof (MonoClass *),
2525 compare_interface_ids);
2527 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2534 * mono_class_interface_offset_with_variance:
2536 * Return the interface offset of @itf in @klass. Sets @non_exact_match to TRUE if the match required variance check
2537 * If @itf is an interface with generic variant arguments, try to find the compatible one.
2539 * Note that this function is responsible for resolving ambiguities. Right now we use whatever ordering interfaces_packed gives us.
2541 * FIXME figure out MS disambiguation rules and fix this function.
2544 mono_class_interface_offset_with_variance (MonoClass *klass, MonoClass *itf, gboolean *non_exact_match) {
2545 int i = mono_class_interface_offset (klass, itf);
2546 *non_exact_match = FALSE;
2550 if (!mono_class_has_variant_generic_params (itf))
2553 for (i = 0; i < klass->interface_offsets_count; i++) {
2554 if (mono_class_is_variant_compatible (itf, klass->interfaces_packed [i])) {
2555 *non_exact_match = TRUE;
2556 return klass->interface_offsets_packed [i];
2564 print_implemented_interfaces (MonoClass *klass) {
2567 GPtrArray *ifaces = NULL;
2569 int ancestor_level = 0;
2571 name = mono_type_get_full_name (klass);
2572 printf ("Packed interface table for class %s has size %d\n", name, klass->interface_offsets_count);
2575 for (i = 0; i < klass->interface_offsets_count; i++)
2576 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2577 klass->interfaces_packed [i]->interface_id,
2578 klass->interface_offsets_packed [i],
2579 klass->interfaces_packed [i]->method.count,
2580 klass->interfaces_packed [i]->name_space,
2581 klass->interfaces_packed [i]->name );
2582 printf ("Interface flags: ");
2583 for (i = 0; i <= klass->max_interface_id; i++)
2584 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2585 printf ("(%d,T)", i);
2587 printf ("(%d,F)", i);
2589 printf ("Dump interface flags:");
2590 #ifdef COMPRESSED_INTERFACE_BITMAP
2592 const uint8_t* p = klass->interface_bitmap;
2593 i = klass->max_interface_id;
2595 printf (" %d x 00 %02X", p [0], p [1]);
2601 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2602 printf (" %02X", klass->interface_bitmap [i]);
2605 while (klass != NULL) {
2606 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2607 ifaces = mono_class_get_implemented_interfaces (klass, &error);
2608 if (!mono_error_ok (&error)) {
2609 printf (" Type failed due to %s\n", mono_error_get_message (&error));
2610 mono_error_cleanup (&error);
2611 } else if (ifaces) {
2612 for (i = 0; i < ifaces->len; i++) {
2613 MonoClass *ic = g_ptr_array_index (ifaces, i);
2614 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2615 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2617 mono_class_interface_offset (klass, ic),
2622 g_ptr_array_free (ifaces, TRUE);
2625 klass = klass->parent;
2630 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2633 args [0] = &arg0->byval_arg;
2635 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2639 array_class_get_if_rank (MonoClass *class, guint rank)
2641 return rank ? mono_array_class_get (class, rank) : class;
2645 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2647 valuetype_types [0] = eclass;
2648 if (eclass == mono_defaults.int16_class)
2649 valuetype_types [1] = mono_defaults.uint16_class;
2650 else if (eclass == mono_defaults.uint16_class)
2651 valuetype_types [1] = mono_defaults.int16_class;
2652 else if (eclass == mono_defaults.int32_class)
2653 valuetype_types [1] = mono_defaults.uint32_class;
2654 else if (eclass == mono_defaults.uint32_class)
2655 valuetype_types [1] = mono_defaults.int32_class;
2656 else if (eclass == mono_defaults.int64_class)
2657 valuetype_types [1] = mono_defaults.uint64_class;
2658 else if (eclass == mono_defaults.uint64_class)
2659 valuetype_types [1] = mono_defaults.int64_class;
2660 else if (eclass == mono_defaults.byte_class)
2661 valuetype_types [1] = mono_defaults.sbyte_class;
2662 else if (eclass == mono_defaults.sbyte_class)
2663 valuetype_types [1] = mono_defaults.byte_class;
2664 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2665 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2668 /* this won't be needed once bug #325495 is completely fixed
2669 * though we'll need something similar to know which interfaces to allow
2670 * in arrays when they'll be lazyly created
2672 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2673 * MS returns diferrent types based on which instance is called. For example:
2674 * object obj = new byte[10][];
2675 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2676 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2679 * Fixing this should kill quite some code, save some bits and improve compatibility.
2682 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2684 MonoClass *eclass = class->element_class;
2685 static MonoClass* generic_icollection_class = NULL;
2686 static MonoClass* generic_ienumerable_class = NULL;
2687 static MonoClass* generic_ienumerator_class = NULL;
2688 MonoClass *valuetype_types[2] = { NULL, NULL };
2689 MonoClass **interfaces = NULL;
2690 int i, interface_count, real_count, original_rank;
2692 gboolean internal_enumerator;
2693 gboolean eclass_is_valuetype;
2695 if (!mono_defaults.generic_ilist_class) {
2699 internal_enumerator = FALSE;
2700 eclass_is_valuetype = FALSE;
2701 original_rank = eclass->rank;
2702 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2703 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2705 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2707 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2708 original_rank = eclass->rank;
2709 eclass = eclass->element_class;
2710 internal_enumerator = TRUE;
2711 *is_enumerator = TRUE;
2719 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2720 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2722 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2724 if (!generic_icollection_class) {
2725 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2726 "System.Collections.Generic", "ICollection`1");
2727 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2728 "System.Collections.Generic", "IEnumerable`1");
2729 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2730 "System.Collections.Generic", "IEnumerator`1");
2733 mono_class_init (eclass);
2736 * Arrays in 2.0 need to implement a number of generic interfaces
2737 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2738 * on the element class). We collect the types needed to build the
2739 * instantiations in interfaces at intervals of 3, because 3 are
2740 * the generic interfaces needed to implement.
2742 if (eclass->valuetype) {
2743 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2745 /* IList, ICollection, IEnumerable */
2746 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2747 if (internal_enumerator) {
2749 if (valuetype_types [1])
2753 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2754 interfaces [0] = valuetype_types [0];
2755 if (valuetype_types [1])
2756 interfaces [3] = valuetype_types [1];
2758 eclass_is_valuetype = TRUE;
2761 int idepth = eclass->idepth;
2762 if (!internal_enumerator)
2765 // FIXME: This doesn't seem to work/required for generic params
2766 if (!(eclass->this_arg.type == MONO_TYPE_VAR || eclass->this_arg.type == MONO_TYPE_MVAR || (eclass->image->dynamic && !eclass->wastypebuilder)))
2767 mono_class_setup_interface_offsets (eclass);
2769 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2770 /* we add object for interfaces and the supertypes for the other
2771 * types. The last of the supertypes is the element class itself which we
2772 * already created the explicit interfaces for (so we include it for IEnumerator
2773 * and exclude it for arrays).
2775 if (MONO_CLASS_IS_INTERFACE (eclass))
2778 interface_count += idepth;
2779 if (eclass->rank && eclass->element_class->valuetype) {
2780 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2781 if (valuetype_types [1])
2784 /* IList, ICollection, IEnumerable */
2785 interface_count *= 3;
2786 real_count = interface_count;
2787 if (internal_enumerator) {
2788 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2789 if (valuetype_types [1])
2792 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2793 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2794 interfaces [0] = mono_defaults.object_class;
2798 for (i = 0; i < idepth; i++) {
2799 mono_class_init (eclass->supertypes [i]);
2800 interfaces [j] = eclass->supertypes [i];
2804 if (all_interfaces) {
2805 for (i = 0; i < eclass->interface_offsets_count; i++) {
2806 interfaces [j] = eclass->interfaces_packed [i];
2810 for (i = 0; i < eclass->interface_count; i++) {
2811 interfaces [j] = eclass->interfaces [i];
2815 if (valuetype_types [1]) {
2816 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2821 /* instantiate the generic interfaces */
2822 for (i = 0; i < interface_count; i += 3) {
2823 MonoClass *iface = interfaces [i];
2825 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2826 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2827 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2829 if (internal_enumerator) {
2831 /* instantiate IEnumerator<iface> */
2832 for (i = 0; i < interface_count; i++) {
2833 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2835 j = interface_count;
2836 if (!eclass_is_valuetype) {
2837 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2838 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2841 for (i = 0; i < eclass->idepth; i++) {
2842 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2846 for (i = 0; i < eclass->interface_offsets_count; i++) {
2847 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2851 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2853 if (valuetype_types [1])
2854 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2858 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2859 for (i = 0; i < real_count; ++i) {
2860 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2861 g_print ("%s implements %s\n", type_name, name);
2872 find_array_interface (MonoClass *klass, const char *name)
2875 for (i = 0; i < klass->interface_count; ++i) {
2876 if (strcmp (klass->interfaces [i]->name, name) == 0)
2883 * Return the number of virtual methods.
2884 * Even for interfaces we can't simply return the number of methods as all CLR types are allowed to have static methods.
2885 * Return -1 on failure.
2886 * FIXME It would be nice if this information could be cached somewhere.
2889 count_virtual_methods (MonoClass *class)
2893 class = mono_class_get_generic_type_definition (class); /*We can find this information by looking at the GTD*/
2895 if (class->methods || !MONO_CLASS_HAS_STATIC_METADATA (class)) {
2896 mono_class_setup_methods (class);
2897 if (class->exception_type)
2900 for (i = 0; i < class->method.count; ++i) {
2901 flags = class->methods [i]->flags;
2902 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2906 for (i = 0; i < class->method.count; ++i) {
2907 flags = mono_metadata_decode_table_row_col (class->image, MONO_TABLE_METHOD, class->method.first + i, MONO_METHOD_FLAGS);
2909 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2917 find_interface (int num_ifaces, MonoClass **interfaces_full, MonoClass *ic)
2925 m = (l + num_ifaces) / 2;
2926 if (interfaces_full [m] == ic)
2928 if (l == num_ifaces)
2930 if (!interfaces_full [m] || interfaces_full [m]->interface_id > ic->interface_id) {
2939 find_interface_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic)
2941 int i = find_interface (num_ifaces, interfaces_full, ic);
2943 return interface_offsets_full [i];
2948 set_interface_and_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic, int offset, mono_bool force_set)
2950 int i = find_interface (num_ifaces, interfaces_full, ic);
2954 interface_offsets_full [i] = offset;
2957 for (i = 0; i < num_ifaces; ++i) {
2958 if (interfaces_full [i]) {
2960 if (interfaces_full [i]->interface_id < ic->interface_id)
2963 while (end < num_ifaces && interfaces_full [end]) end++;
2964 memmove (interfaces_full + i + 1, interfaces_full + i, sizeof (MonoClass*) * (end - i));
2965 memmove (interface_offsets_full + i + 1, interface_offsets_full + i, sizeof (int) * (end - i));
2967 interfaces_full [i] = ic;
2968 interface_offsets_full [i] = offset;
2974 #ifdef COMPRESSED_INTERFACE_BITMAP
2977 * Compressed interface bitmap design.
2979 * Interface bitmaps take a large amount of memory, because their size is
2980 * linear with the maximum interface id assigned in the process (each interface
2981 * is assigned a unique id as it is loaded). The number of interface classes
2982 * is high because of the many implicit interfaces implemented by arrays (we'll
2983 * need to lazy-load them in the future).
2984 * Most classes implement a very small number of interfaces, so the bitmap is
2985 * sparse. This bitmap needs to be checked by interface casts, so access to the
2986 * needed bit must be fast and doable with few jit instructions.
2988 * The current compression format is as follows:
2989 * *) it is a sequence of one or more two-byte elements
2990 * *) the first byte in the element is the count of empty bitmap bytes
2991 * at the current bitmap position
2992 * *) the second byte in the element is an actual bitmap byte at the current
2995 * As an example, the following compressed bitmap bytes:
2996 * 0x07 0x01 0x00 0x7
2997 * correspond to the following bitmap:
2998 * 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x01 0x07
3000 * Each two-byte element can represent up to 2048 bitmap bits, but as few as a single
3001 * bitmap byte for non-sparse sequences. In practice the interface bitmaps created
3002 * during a gmcs bootstrap are reduced to less tha 5% of the original size.
3006 * mono_compress_bitmap:
3007 * @dest: destination buffer
3008 * @bitmap: bitmap buffer
3009 * @size: size of @bitmap in bytes
3011 * This is a mono internal function.
3012 * The @bitmap data is compressed into a format that is small but
3013 * still searchable in few instructions by the JIT and runtime.
3014 * The compressed data is stored in the buffer pointed to by the
3015 * @dest array. Passing a #NULL value for @dest allows to just compute
3016 * the size of the buffer.
3017 * This compression algorithm assumes the bits set in the bitmap are
3018 * few and far between, like in interface bitmaps.
3019 * Returns: the size of the compressed bitmap in bytes.
3022 mono_compress_bitmap (uint8_t *dest, const uint8_t *bitmap, int size)
3026 const uint8_t *end = bitmap + size;
3027 while (bitmap < end) {
3028 if (*bitmap || numz == 255) {
3052 * mono_class_interface_match:
3053 * @bitmap: a compressed bitmap buffer
3054 * @id: the index to check in the bitmap
3056 * This is a mono internal function.
3057 * Checks if a bit is set in a compressed interface bitmap. @id must
3058 * be already checked for being smaller than the maximum id encoded in the
3061 * Returns: a non-zero value if bit @id is set in the bitmap @bitmap,
3065 mono_class_interface_match (const uint8_t *bitmap, int id)
3068 id -= bitmap [0] * 8;
3072 return bitmap [1] & (1 << id);
3081 * LOCKING: this is supposed to be called with the loader lock held.
3082 * Return -1 on failure and set exception_type
3085 setup_interface_offsets (MonoClass *class, int cur_slot)
3089 int i, j, max_iid, num_ifaces;
3090 MonoClass **interfaces_full = NULL;
3091 int *interface_offsets_full = NULL;
3093 GPtrArray **ifaces_array = NULL;
3094 int interface_offsets_count;
3095 MonoClass **array_interfaces = NULL;
3096 int num_array_interfaces;
3097 int is_enumerator = FALSE;
3099 mono_class_setup_supertypes (class);
3101 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
3102 * implicit interfaces have the property that they are assigned the same slot in the
3103 * vtables for compatible interfaces
3105 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
3107 /* compute maximum number of slots and maximum interface id */
3109 num_ifaces = num_array_interfaces; /* this can include duplicated ones */
3110 ifaces_array = g_new0 (GPtrArray *, class->idepth);
3111 for (j = 0; j < class->idepth; j++) {
3112 k = class->supertypes [j];
3113 num_ifaces += k->interface_count;
3114 for (i = 0; i < k->interface_count; i++) {
3115 ic = k->interfaces [i];
3118 mono_class_init (ic);
3120 if (max_iid < ic->interface_id)
3121 max_iid = ic->interface_id;
3123 ifaces = mono_class_get_implemented_interfaces (k, &error);
3124 if (!mono_error_ok (&error)) {
3125 char *name = mono_type_get_full_name (k);
3126 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)));
3128 mono_error_cleanup (&error);
3133 num_ifaces += ifaces->len;
3134 for (i = 0; i < ifaces->len; ++i) {
3135 ic = g_ptr_array_index (ifaces, i);
3136 if (max_iid < ic->interface_id)
3137 max_iid = ic->interface_id;
3139 ifaces_array [j] = ifaces;
3143 for (i = 0; i < num_array_interfaces; ++i) {
3144 ic = array_interfaces [i];
3145 mono_class_init (ic);
3146 if (max_iid < ic->interface_id)
3147 max_iid = ic->interface_id;
3150 if (MONO_CLASS_IS_INTERFACE (class)) {
3152 if (max_iid < class->interface_id)
3153 max_iid = class->interface_id;
3155 class->max_interface_id = max_iid;
3156 /* compute vtable offset for interfaces */
3157 interfaces_full = g_malloc0 (sizeof (MonoClass*) * num_ifaces);
3158 interface_offsets_full = g_malloc (sizeof (int) * num_ifaces);
3160 for (i = 0; i < num_ifaces; i++) {
3161 interface_offsets_full [i] = -1;
3164 /* skip the current class */
3165 for (j = 0; j < class->idepth - 1; j++) {
3166 k = class->supertypes [j];
3167 ifaces = ifaces_array [j];
3170 for (i = 0; i < ifaces->len; ++i) {
3172 ic = g_ptr_array_index (ifaces, i);
3174 /*Force the sharing of interface offsets between parent and subtypes.*/
3175 io = mono_class_interface_offset (k, ic);
3177 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, io, TRUE);
3182 g_assert (class == class->supertypes [class->idepth - 1]);
3183 ifaces = ifaces_array [class->idepth - 1];
3185 for (i = 0; i < ifaces->len; ++i) {
3187 ic = g_ptr_array_index (ifaces, i);
3188 if (set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, cur_slot, FALSE))
3190 count = count_virtual_methods (ic);
3192 char *name = mono_type_get_full_name (ic);
3193 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Error calculating interface offset of %s", name));
3202 if (MONO_CLASS_IS_INTERFACE (class))
3203 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, class, cur_slot, TRUE);
3205 if (num_array_interfaces) {
3206 if (is_enumerator) {
3207 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
3208 int ienumerator_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ienumerator_idx]);
3209 g_assert (ienumerator_offset >= 0);
3210 for (i = 0; i < num_array_interfaces; ++i) {
3211 ic = array_interfaces [i];
3212 if (strcmp (ic->name, "IEnumerator`1") == 0)
3213 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, ienumerator_offset, TRUE);
3215 g_assert_not_reached ();
3216 /*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);*/
3219 int ilist_offset, icollection_offset, ienumerable_offset;
3220 int ilist_iface_idx = find_array_interface (class, "IList`1");
3221 MonoClass* ilist_class = class->interfaces [ilist_iface_idx];
3222 int icollection_iface_idx = find_array_interface (ilist_class, "ICollection`1");
3223 int ienumerable_iface_idx = find_array_interface (ilist_class, "IEnumerable`1");
3224 ilist_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ilist_iface_idx]);
3225 icollection_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [icollection_iface_idx]);
3226 ienumerable_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [ienumerable_iface_idx]);
3227 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
3228 for (i = 0; i < num_array_interfaces; ++i) {
3230 ic = array_interfaces [i];
3231 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
3232 offset = ilist_offset;
3233 else if (strcmp (ic->name, "ICollection`1") == 0)
3234 offset = icollection_offset;
3235 else if (strcmp (ic->name, "IEnumerable`1") == 0)
3236 offset = ienumerable_offset;
3238 g_assert_not_reached ();
3239 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, offset, TRUE);
3240 /*g_print ("type %s has %s offset at %d (%s)\n", class->name, ic->name, offset, class->interfaces [0]->name);*/
3245 for (interface_offsets_count = 0, i = 0; i < num_ifaces; i++) {
3246 if (interface_offsets_full [i] != -1) {
3247 interface_offsets_count ++;
3252 * We might get called twice: once from mono_class_init () then once from
3253 * mono_class_setup_vtable ().
3255 if (class->interfaces_packed) {
3256 g_assert (class->interface_offsets_count == interface_offsets_count);
3260 class->interface_offsets_count = interface_offsets_count;
3261 class->interfaces_packed = mono_class_alloc (class, sizeof (MonoClass*) * interface_offsets_count);
3262 class->interface_offsets_packed = mono_class_alloc (class, sizeof (guint16) * interface_offsets_count);
3263 bsize = (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0);
3264 #ifdef COMPRESSED_INTERFACE_BITMAP
3265 bitmap = g_malloc0 (bsize);
3267 bitmap = mono_class_alloc0 (class, bsize);
3269 for (i = 0; i < interface_offsets_count; i++) {
3270 int id = interfaces_full [i]->interface_id;
3271 bitmap [id >> 3] |= (1 << (id & 7));
3272 class->interfaces_packed [i] = interfaces_full [i];
3273 class->interface_offsets_packed [i] = interface_offsets_full [i];
3274 /*if (num_array_interfaces)
3275 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]);*/
3277 #ifdef COMPRESSED_INTERFACE_BITMAP
3278 i = mono_compress_bitmap (NULL, bitmap, bsize);
3279 class->interface_bitmap = mono_class_alloc0 (class, i);
3280 mono_compress_bitmap (class->interface_bitmap, bitmap, bsize);
3283 class->interface_bitmap = bitmap;
3288 g_free (interfaces_full);
3289 g_free (interface_offsets_full);
3290 g_free (array_interfaces);
3291 for (i = 0; i < class->idepth; i++) {
3292 ifaces = ifaces_array [i];
3294 g_ptr_array_free (ifaces, TRUE);
3296 g_free (ifaces_array);
3298 //printf ("JUST DONE: ");
3299 //print_implemented_interfaces (class);
3305 * Setup interface offsets for interfaces.
3307 * - class->max_interface_id
3308 * - class->interface_offsets_count
3309 * - class->interfaces_packed
3310 * - class->interface_offsets_packed
3311 * - class->interface_bitmap
3313 * This function can fail @class.
3316 mono_class_setup_interface_offsets (MonoClass *class)
3318 mono_loader_lock ();
3320 setup_interface_offsets (class, 0);
3322 mono_loader_unlock ();
3325 /*Checks if @klass has @parent as one of it's parents type gtd
3329 * Bar<T> : Foo<Bar<Bar<T>>>
3333 mono_class_has_gtd_parent (MonoClass *klass, MonoClass *parent)
3335 klass = mono_class_get_generic_type_definition (klass);
3336 parent = mono_class_get_generic_type_definition (parent);
3337 mono_class_setup_supertypes (klass);
3338 mono_class_setup_supertypes (parent);
3340 return klass->idepth >= parent->idepth &&
3341 mono_class_get_generic_type_definition (klass->supertypes [parent->idepth - 1]) == parent;
3345 mono_class_check_vtable_constraints (MonoClass *class, GList *in_setup)
3347 MonoGenericInst *ginst;
3349 if (!class->generic_class) {
3350 mono_class_setup_vtable_full (class, in_setup);
3351 return class->exception_type == 0;
3354 mono_class_setup_vtable_full (mono_class_get_generic_type_definition (class), in_setup);
3355 if (class->generic_class->container_class->exception_type) {
3356 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Failed to load generic definition vtable"));
3360 ginst = class->generic_class->context.class_inst;
3361 for (i = 0; i < ginst->type_argc; ++i) {
3363 if (ginst->type_argv [i]->type != MONO_TYPE_GENERICINST)
3365 arg = mono_class_from_mono_type (ginst->type_argv [i]);
3366 /*Those 2 will be checked by mono_class_setup_vtable itself*/
3367 if (mono_class_has_gtd_parent (class, arg) || mono_class_has_gtd_parent (arg, class))
3369 if (!mono_class_check_vtable_constraints (arg, in_setup)) {
3370 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Failed to load generic parameter %d", i));
3378 * mono_class_setup_vtable:
3380 * Creates the generic vtable of CLASS.
3381 * Initializes the following fields in MonoClass:
3384 * Plus all the fields initialized by setup_interface_offsets ().
3385 * If there is an error during vtable construction, class->exception_type is set.
3387 * LOCKING: Acquires the loader lock.
3390 mono_class_setup_vtable (MonoClass *class)
3392 mono_class_setup_vtable_full (class, NULL);
3396 mono_class_setup_vtable_full (MonoClass *class, GList *in_setup)
3398 MonoMethod **overrides;
3399 MonoGenericContext *context;
3407 if (mono_debug_using_mono_debugger ())
3408 /* The debugger currently depends on this */
3409 mono_class_setup_methods (class);
3411 if (MONO_CLASS_IS_INTERFACE (class)) {
3412 /* This sets method->slot for all methods if this is an interface */
3413 mono_class_setup_methods (class);
3417 if (class->exception_type)
3420 if (g_list_find (in_setup, class))
3423 mono_loader_lock ();
3425 if (class->vtable) {
3426 mono_loader_unlock ();
3430 mono_stats.generic_vtable_count ++;
3431 in_setup = g_list_prepend (in_setup, class);
3433 if (class->generic_class) {
3434 if (!mono_class_check_vtable_constraints (class, in_setup)) {
3435 mono_loader_unlock ();
3436 g_list_remove (in_setup, class);
3440 context = mono_class_get_context (class);
3441 type_token = class->generic_class->container_class->type_token;
3443 context = (MonoGenericContext *) class->generic_container;
3444 type_token = class->type_token;
3447 if (class->image->dynamic) {
3448 /* Generic instances can have zero method overrides without causing any harm.
3449 * This is true since we don't do layout all over again for them, we simply inflate
3450 * the layout of the parent.
3452 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
3454 /* The following call fails if there are missing methods in the type */
3455 /* FIXME it's probably a good idea to avoid this for generic instances. */
3456 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
3460 mono_class_setup_vtable_general (class, overrides, onum, in_setup);
3462 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load list of method overrides"));
3466 mono_loader_unlock ();
3467 g_list_remove (in_setup, class);
3472 #define DEBUG_INTERFACE_VTABLE_CODE 0
3473 #define TRACE_INTERFACE_VTABLE_CODE 0
3474 #define VERIFY_INTERFACE_VTABLE_CODE 0
3475 #define VTABLE_SELECTOR (1)
3477 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3478 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
3479 if (!(VTABLE_SELECTOR)) break; \
3483 #define DEBUG_INTERFACE_VTABLE(stmt)
3486 #if TRACE_INTERFACE_VTABLE_CODE
3487 #define TRACE_INTERFACE_VTABLE(stmt) do {\
3488 if (!(VTABLE_SELECTOR)) break; \
3492 #define TRACE_INTERFACE_VTABLE(stmt)
3495 #if VERIFY_INTERFACE_VTABLE_CODE
3496 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
3497 if (!(VTABLE_SELECTOR)) break; \
3501 #define VERIFY_INTERFACE_VTABLE(stmt)
3505 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3507 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
3511 GString *res = g_string_new ("");
3513 g_string_append_c (res, '(');
3514 for (i = 0; i < sig->param_count; ++i) {
3516 g_string_append_c (res, ',');
3517 mono_type_get_desc (res, sig->params [i], include_namespace);
3519 g_string_append (res, ")=>");
3520 if (sig->ret != NULL) {
3521 mono_type_get_desc (res, sig->ret, include_namespace);
3523 g_string_append (res, "NULL");
3526 g_string_free (res, FALSE);
3530 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
3531 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
3532 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
3533 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
3541 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) {
3542 MonoMethodSignature *cmsig, *imsig;
3543 if (strcmp (im->name, cm->name) == 0) {
3544 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
3545 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
3548 if (! slot_is_empty) {
3549 if (require_newslot) {
3550 if (! interface_is_explicitly_implemented_by_class) {
3551 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
3554 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3555 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
3559 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
3562 cmsig = mono_method_signature (cm);
3563 imsig = mono_method_signature (im);
3564 if (!cmsig || !imsig) {
3565 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not resolve the signature of a virtual method"));
3569 if (! mono_metadata_signature_equal (cmsig, imsig)) {
3570 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
3571 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3572 TRACE_INTERFACE_VTABLE (printf ("]"));
3575 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
3576 /* CAS - SecurityAction.InheritanceDemand on interface */
3577 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3578 mono_secman_inheritancedemand_method (cm, im);
3581 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3582 mono_security_core_clr_check_override (class, cm, im);
3583 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
3586 MonoClass *ic = im->klass;
3587 const char *ic_name_space = ic->name_space;
3588 const char *ic_name = ic->name;
3591 if (! require_newslot) {
3592 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
3595 if (cm->klass->rank == 0) {
3596 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
3599 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
3600 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
3601 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3602 TRACE_INTERFACE_VTABLE (printf ("]"));
3605 if (mono_class_get_image (ic) != mono_defaults.corlib) {
3606 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
3609 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
3610 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
3613 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
3614 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
3618 subname = strstr (cm->name, ic_name_space);
3619 if (subname != cm->name) {
3620 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
3623 subname += strlen (ic_name_space);
3624 if (subname [0] != '.') {
3625 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
3629 if (strstr (subname, ic_name) != subname) {
3630 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
3633 subname += strlen (ic_name);
3634 if (subname [0] != '.') {
3635 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
3639 if (strcmp (subname, im->name) != 0) {
3640 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
3644 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
3645 /* CAS - SecurityAction.InheritanceDemand on interface */
3646 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3647 mono_secman_inheritancedemand_method (cm, im);
3650 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3651 mono_security_core_clr_check_override (class, cm, im);
3653 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
3658 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3660 foreach_override (gpointer key, gpointer value, gpointer user_data) {
3661 MonoMethod *method = key;
3662 MonoMethod *override = value;
3663 MonoClass *method_class = mono_method_get_class (method);
3664 MonoClass *override_class = mono_method_get_class (override);
3666 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
3667 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
3668 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
3671 print_overrides (GHashTable *override_map, const char *message) {
3673 printf ("Override map \"%s\" START:\n", message);
3674 g_hash_table_foreach (override_map, foreach_override, NULL);
3675 printf ("Override map \"%s\" END.\n", message);
3677 printf ("Override map \"%s\" EMPTY.\n", message);
3681 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
3682 char *full_name = mono_type_full_name (&class->byval_arg);
3686 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
3688 if (print_interfaces) {
3689 print_implemented_interfaces (class);
3690 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
3693 if (class->parent) {
3694 parent_size = class->parent->vtable_size;
3698 for (i = 0; i < size; ++i) {
3699 MonoMethod *cm = vtable [i];
3701 char *cm_name = mono_method_full_name (cm, TRUE);
3702 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
3703 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
3712 #if VERIFY_INTERFACE_VTABLE_CODE
3714 mono_method_try_get_vtable_index (MonoMethod *method)
3716 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3717 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3718 if (imethod->declaring->is_generic)
3719 return imethod->declaring->slot;
3721 return method->slot;
3725 mono_class_verify_vtable (MonoClass *class)
3728 char *full_name = mono_type_full_name (&class->byval_arg);
3730 printf ("*** Verifying VTable of class '%s' \n", full_name);
3734 if (!class->methods)
3737 for (i = 0; i < class->method.count; ++i) {
3738 MonoMethod *cm = class->methods [i];
3741 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3745 full_name = mono_method_full_name (cm, TRUE);
3747 slot = mono_method_try_get_vtable_index (cm);
3749 if (slot >= class->vtable_size) {
3750 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
3754 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot])) {
3755 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
3756 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
3757 g_free (other_name);
3760 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
3767 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
3769 char *method_signature;
3772 for (index = 0; index < onum; ++index) {
3773 mono_trace_warning (MONO_TRACE_TYPE, " at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
3774 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
3776 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
3777 type_name = mono_type_full_name (&class->byval_arg);
3778 mono_trace_warning (MONO_TRACE_TYPE, "no implementation for interface method %s::%s(%s) in class %s\n",
3779 mono_type_get_name (&ic->byval_arg), im->name, method_signature, type_name);
3780 g_free (method_signature);
3782 mono_class_setup_methods (class);
3783 if (class->exception_type) {
3784 char *name = mono_type_get_full_name (class);
3785 mono_trace_warning (MONO_TRACE_TYPE, "CLASS %s failed to resolve methods\n", name);
3789 for (index = 0; index < class->method.count; ++index) {
3790 MonoMethod *cm = class->methods [index];
3791 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3793 mono_trace_warning (MONO_TRACE_TYPE, "METHOD %s(%s)\n", cm->name, method_signature);
3794 g_free (method_signature);
3799 verify_class_overrides (MonoClass *class, MonoMethod **overrides, int onum)
3803 for (i = 0; i < onum; ++i) {
3804 MonoMethod *decl = overrides [i * 2];
3805 MonoMethod *body = overrides [i * 2 + 1];
3807 if (mono_class_get_generic_type_definition (body->klass) != mono_class_get_generic_type_definition (class)) {
3808 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method belongs to a different class than the declared one"));
3812 if (!(body->flags & METHOD_ATTRIBUTE_VIRTUAL) || (body->flags & METHOD_ATTRIBUTE_STATIC)) {
3813 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3814 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must not be static to override a base type"));
3816 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method must be virtual to override a base type"));
3820 if (!(decl->flags & METHOD_ATTRIBUTE_VIRTUAL) || (decl->flags & METHOD_ATTRIBUTE_STATIC)) {
3821 if (body->flags & METHOD_ATTRIBUTE_STATIC)
3822 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a static method in a base type"));
3824 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cannot override a non virtual method in a base type"));
3828 if (!mono_class_is_assignable_from_slow (decl->klass, class)) {
3829 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Method overrides a class or interface that extended or implemented by this type"));
3837 mono_class_need_stelemref_method (MonoClass *class)
3839 return class->rank == 1 && MONO_TYPE_IS_REFERENCE (&class->element_class->byval_arg);
3843 * LOCKING: this is supposed to be called with the loader lock held.
3846 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum, GList *in_setup)
3850 MonoMethod **vtable;
3851 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3852 GPtrArray *ifaces = NULL;
3853 GHashTable *override_map = NULL;
3854 gboolean security_enabled = mono_is_security_manager_active ();
3856 gpointer class_iter;
3857 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3858 int first_non_interface_slot;
3860 GSList *virt_methods = NULL, *l;
3861 int stelemref_slot = 0;
3866 if (overrides && !verify_class_overrides (class, overrides, onum))
3869 ifaces = mono_class_get_implemented_interfaces (class, &error);
3870 if (!mono_error_ok (&error)) {
3871 char *name = mono_type_get_full_name (class);
3872 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)));
3874 mono_error_cleanup (&error);
3876 } else if (ifaces) {
3877 for (i = 0; i < ifaces->len; i++) {
3878 MonoClass *ic = g_ptr_array_index (ifaces, i);
3879 max_vtsize += ic->method.count;
3881 g_ptr_array_free (ifaces, TRUE);
3885 if (class->parent) {
3886 mono_class_init (class->parent);
3887 mono_class_setup_vtable_full (class->parent, in_setup);
3889 if (class->parent->exception_type) {
3890 char *name = mono_type_get_full_name (class->parent);
3891 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Parent %s failed to load", name));
3896 max_vtsize += class->parent->vtable_size;
3897 cur_slot = class->parent->vtable_size;
3900 max_vtsize += class->method.count;
3902 /*Array have a slot for stelemref*/
3903 if (mono_class_need_stelemref_method (class)) {
3904 stelemref_slot = cur_slot;
3909 vtable = alloca (sizeof (gpointer) * max_vtsize);
3910 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
3912 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3914 cur_slot = setup_interface_offsets (class, cur_slot);
3915 if (cur_slot == -1) /*setup_interface_offsets fails the type.*/
3918 max_iid = class->max_interface_id;
3919 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
3921 /* Optimized version for generic instances */
3922 if (class->generic_class) {
3924 MonoClass *gklass = class->generic_class->container_class;
3927 mono_class_setup_vtable_full (gklass, in_setup);
3928 if (gklass->exception_type != MONO_EXCEPTION_NONE) {
3929 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3933 tmp = mono_class_alloc0 (class, sizeof (gpointer) * gklass->vtable_size);
3934 class->vtable_size = gklass->vtable_size;
3935 for (i = 0; i < gklass->vtable_size; ++i)
3936 if (gklass->vtable [i]) {
3937 MonoMethod *inflated = mono_class_inflate_generic_method_full_checked (gklass->vtable [i], class, mono_class_get_context (class), &error);
3938 if (!mono_error_ok (&error)) {
3939 char *err_msg = g_strdup_printf ("Could not inflate method due to %s", mono_error_get_message (&error));
3940 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
3942 mono_error_cleanup (&error);
3946 tmp [i]->slot = gklass->vtable [i]->slot;
3948 mono_memory_barrier ();
3949 class->vtable = tmp;
3951 /* Have to set method->slot for abstract virtual methods */
3952 if (class->methods && gklass->methods) {
3953 for (i = 0; i < class->method.count; ++i)
3954 if (class->methods [i]->slot == -1)
3955 class->methods [i]->slot = gklass->methods [i]->slot;
3961 if (class->parent && class->parent->vtable_size) {
3962 MonoClass *parent = class->parent;
3965 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
3967 // Also inherit parent interface vtables, just as a starting point.
3968 // This is needed otherwise bug-77127.exe fails when the property methods
3969 // have different names in the iterface and the class, because for child
3970 // classes the ".override" information is not used anymore.
3971 for (i = 0; i < parent->interface_offsets_count; i++) {
3972 MonoClass *parent_interface = parent->interfaces_packed [i];
3973 int interface_offset = mono_class_interface_offset (class, parent_interface);
3974 /*FIXME this is now dead code as this condition will never hold true.
3975 Since interface offsets are inherited then the offset of an interface implemented
3976 by a parent will never be the out of it's vtable boundary.
3978 if (interface_offset >= parent->vtable_size) {
3979 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
3982 mono_class_setup_methods (parent_interface); /*FIXME Just kill this whole chunk of dead code*/
3983 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
3984 for (j = 0; j < parent_interface->method.count && !class->exception_type; j++) {
3985 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
3986 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
3987 parent_interface_offset + j, parent_interface_offset, j,
3988 interface_offset + j, interface_offset, j));
3995 /*Array have a slot for stelemref*/
3996 if (mono_class_need_stelemref_method (class)) {
3997 MonoMethod *method = mono_marshal_get_virtual_stelemref (class);
3999 method->slot = stelemref_slot;
4001 g_assert (method->slot == stelemref_slot);
4003 vtable [stelemref_slot] = method;
4006 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
4007 /* override interface methods */
4008 for (i = 0; i < onum; i++) {
4009 MonoMethod *decl = overrides [i*2];
4010 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
4012 dslot = mono_method_get_vtable_slot (decl);
4014 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4018 dslot += mono_class_interface_offset (class, decl->klass);
4019 vtable [dslot] = overrides [i*2 + 1];
4020 vtable [dslot]->slot = dslot;
4022 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4024 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
4026 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4027 mono_security_core_clr_check_override (class, vtable [dslot], decl);
4030 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
4031 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
4034 * Create a list of virtual methods to avoid calling
4035 * mono_class_get_virtual_methods () which is slow because of the metadata
4039 gpointer iter = NULL;
4042 virt_methods = NULL;
4043 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
4044 virt_methods = g_slist_prepend (virt_methods, cm);
4046 if (class->exception_type)
4050 // Loop on all implemented interfaces...
4051 for (i = 0; i < class->interface_offsets_count; i++) {
4052 MonoClass *parent = class->parent;
4054 gboolean interface_is_explicitly_implemented_by_class;
4057 ic = class->interfaces_packed [i];
4058 ic_offset = mono_class_interface_offset (class, ic);
4060 mono_class_setup_methods (ic);
4061 if (ic->exception_type)
4064 // Check if this interface is explicitly implemented (instead of just inherited)
4065 if (parent != NULL) {
4066 int implemented_interfaces_index;
4067 interface_is_explicitly_implemented_by_class = FALSE;
4068 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
4069 if (ic == class->interfaces [implemented_interfaces_index]) {
4070 interface_is_explicitly_implemented_by_class = TRUE;
4075 interface_is_explicitly_implemented_by_class = TRUE;
4078 // Loop on all interface methods...
4079 for (im_index = 0; im_index < ic->method.count; im_index++) {
4080 MonoMethod *im = ic->methods [im_index];
4081 int im_slot = ic_offset + im->slot;
4082 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
4084 if (im->flags & METHOD_ATTRIBUTE_STATIC)
4087 // If there is an explicit implementation, just use it right away,
4088 // otherwise look for a matching method
4089 if (override_im == NULL) {
4094 // First look for a suitable method among the class methods
4096 for (l = virt_methods; l; l = l->next) {
4098 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)));
4099 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
4100 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
4101 vtable [im_slot] = cm;
4102 /* Why do we need this? */
4107 TRACE_INTERFACE_VTABLE (printf ("\n"));
4108 if (class->exception_type) /*Might be set by check_interface_method_override*/
4112 // If the slot is still empty, look in all the inherited virtual methods...
4113 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
4114 MonoClass *parent = class->parent;
4115 // Reverse order, so that last added methods are preferred
4116 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
4117 MonoMethod *cm = parent->vtable [cm_index];
4119 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));
4120 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
4121 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
4122 vtable [im_slot] = cm;
4123 /* Why do we need this? */
4129 if (class->exception_type) /*Might be set by check_interface_method_override*/
4131 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
4135 g_assert (vtable [im_slot] == override_im);
4140 // If the class is not abstract, check that all its interface slots are full.
4141 // The check is done here and not directly at the end of the loop above because
4142 // it can happen (for injected generic array interfaces) that the same slot is
4143 // processed multiple times (those interfaces have overlapping slots), and it
4144 // will not always be the first pass the one that fills the slot.
4145 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
4146 for (i = 0; i < class->interface_offsets_count; i++) {
4150 ic = class->interfaces_packed [i];
4151 ic_offset = mono_class_interface_offset (class, ic);
4153 for (im_index = 0; im_index < ic->method.count; im_index++) {
4154 MonoMethod *im = ic->methods [im_index];
4155 int im_slot = ic_offset + im->slot;
4157 if (im->flags & METHOD_ATTRIBUTE_STATIC)
4160 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
4161 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
4162 if (vtable [im_slot] == NULL) {
4163 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
4170 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
4172 for (l = virt_methods; l; l = l->next) {
4175 * If the method is REUSE_SLOT, we must check in the
4176 * base class for a method to override.
4178 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
4180 for (k = class->parent; k ; k = k->parent) {
4185 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
4186 MonoMethodSignature *cmsig, *m1sig;
4188 cmsig = mono_method_signature (cm);
4189 m1sig = mono_method_signature (m1);
4191 if (!cmsig || !m1sig) {
4192 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4196 if (!strcmp(cm->name, m1->name) &&
4197 mono_metadata_signature_equal (cmsig, m1sig)) {
4199 /* CAS - SecurityAction.InheritanceDemand */
4200 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
4201 mono_secman_inheritancedemand_method (cm, m1);
4204 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4205 mono_security_core_clr_check_override (class, cm, m1);
4207 slot = mono_method_get_vtable_slot (m1);
4211 g_assert (cm->slot < max_vtsize);
4213 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4214 g_hash_table_insert (override_map, m1, cm);
4218 if (k->exception_type)
4228 /*Non final newslot methods must be given a non-interface vtable slot*/
4229 if ((cm->flags & METHOD_ATTRIBUTE_NEW_SLOT) && !(cm->flags & METHOD_ATTRIBUTE_FINAL) && cm->slot >= 0)
4233 cm->slot = cur_slot++;
4235 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
4236 vtable [cm->slot] = cm;
4239 /* override non interface methods */
4240 for (i = 0; i < onum; i++) {
4241 MonoMethod *decl = overrides [i*2];
4242 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
4243 g_assert (decl->slot != -1);
4244 vtable [decl->slot] = overrides [i*2 + 1];
4245 overrides [i * 2 + 1]->slot = decl->slot;
4247 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
4248 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
4250 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4251 mono_security_core_clr_check_override (class, vtable [decl->slot], decl);
4256 * If a method occupies more than one place in the vtable, and it is
4257 * overriden, then change the other occurances too.
4260 for (i = 0; i < max_vtsize; ++i)
4262 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
4267 g_hash_table_destroy (override_map);
4268 override_map = NULL;
4271 g_slist_free (virt_methods);
4272 virt_methods = NULL;
4274 /* Ensure that all vtable slots are filled with concrete instance methods */
4275 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
4276 for (i = 0; i < cur_slot; ++i) {
4277 if (vtable [i] == NULL || (vtable [i]->flags & (METHOD_ATTRIBUTE_ABSTRACT | METHOD_ATTRIBUTE_STATIC))) {
4278 char *type_name = mono_type_get_full_name (class);
4279 char *method_name = vtable [i] ? mono_method_full_name (vtable [i], TRUE) : g_strdup ("none");
4280 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));
4282 g_free (method_name);
4288 if (class->generic_class) {
4289 MonoClass *gklass = class->generic_class->container_class;
4291 mono_class_init (gklass);
4293 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
4295 /* Check that the vtable_size value computed in mono_class_init () is correct */
4296 if (class->vtable_size)
4297 g_assert (cur_slot == class->vtable_size);
4298 class->vtable_size = cur_slot;
4301 /* Try to share the vtable with our parent. */
4302 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
4303 mono_memory_barrier ();
4304 class->vtable = class->parent->vtable;
4306 MonoMethod **tmp = mono_class_alloc0 (class, sizeof (gpointer) * class->vtable_size);
4307 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
4308 mono_memory_barrier ();
4309 class->vtable = tmp;
4312 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
4313 if (mono_print_vtable) {
4316 print_implemented_interfaces (class);
4318 for (i = 0; i <= max_iid; i++)
4319 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
4322 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
4323 class->vtable_size, icount);
4325 for (i = 0; i < cur_slot; ++i) {
4330 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
4331 mono_method_full_name (cm, TRUE));
4337 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
4338 class->name, max_iid);
4340 for (i = 0; i < class->interface_count; i++) {
4341 ic = class->interfaces [i];
4342 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
4343 mono_class_interface_offset (class, ic),
4344 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4347 for (k = class->parent; k ; k = k->parent) {
4348 for (i = 0; i < k->interface_count; i++) {
4349 ic = k->interfaces [i];
4350 printf (" parent slot offset: %03d, method count: %03d, iid: %03d %s\n",
4351 mono_class_interface_offset (class, ic),
4352 count_virtual_methods (ic), ic->interface_id, mono_type_full_name (&ic->byval_arg));
4358 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
4363 char *name = mono_type_get_full_name (class);
4364 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("VTable setup of type %s failed", name));
4367 g_hash_table_destroy (override_map);
4369 g_slist_free (virt_methods);
4374 * mono_method_get_vtable_slot:
4376 * Returns method->slot, computing it if neccesary. Return -1 on failure.
4377 * LOCKING: Acquires the loader lock.
4379 * FIXME Use proper MonoError machinery here.
4382 mono_method_get_vtable_slot (MonoMethod *method)
4384 if (method->slot == -1) {
4385 mono_class_setup_vtable (method->klass);
4386 if (method->klass->exception_type)
4388 g_assert (method->slot != -1);
4390 return method->slot;
4394 * mono_method_get_vtable_index:
4397 * Returns the index into the runtime vtable to access the method or,
4398 * in the case of a virtual generic method, the virtual generic method
4399 * thunk. Returns -1 on failure.
4401 * FIXME Use proper MonoError machinery here.
4404 mono_method_get_vtable_index (MonoMethod *method)
4406 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
4407 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
4408 if (imethod->declaring->is_generic)
4409 return mono_method_get_vtable_slot (imethod->declaring);
4411 return mono_method_get_vtable_slot (method);
4414 static MonoMethod *default_ghc = NULL;
4415 static MonoMethod *default_finalize = NULL;
4416 static int finalize_slot = -1;
4417 static int ghc_slot = -1;
4420 initialize_object_slots (MonoClass *class)
4425 if (class == mono_defaults.object_class) {
4426 mono_class_setup_vtable (class);
4427 for (i = 0; i < class->vtable_size; ++i) {
4428 MonoMethod *cm = class->vtable [i];
4430 if (!strcmp (cm->name, "GetHashCode"))
4432 else if (!strcmp (cm->name, "Finalize"))
4436 g_assert (ghc_slot > 0);
4437 default_ghc = class->vtable [ghc_slot];
4439 g_assert (finalize_slot > 0);
4440 default_finalize = class->vtable [finalize_slot];
4445 MonoMethod *array_method;
4447 } GenericArrayMethodInfo;
4449 static int generic_array_method_num = 0;
4450 static GenericArrayMethodInfo *generic_array_method_info = NULL;
4453 generic_array_methods (MonoClass *class)
4455 int i, count_generic = 0;
4456 GList *list = NULL, *tmp;
4457 if (generic_array_method_num)
4458 return generic_array_method_num;
4459 mono_class_setup_methods (class->parent); /*This is setting up System.Array*/
4460 g_assert (!class->parent->exception_type); /*So hitting this assert is a huge problem*/
4461 for (i = 0; i < class->parent->method.count; i++) {
4462 MonoMethod *m = class->parent->methods [i];
4463 if (!strncmp (m->name, "InternalArray__", 15)) {
4465 list = g_list_prepend (list, m);
4468 list = g_list_reverse (list);
4469 generic_array_method_info = mono_image_alloc (mono_defaults.corlib, sizeof (GenericArrayMethodInfo) * count_generic);
4471 for (tmp = list; tmp; tmp = tmp->next) {
4472 const char *mname, *iname;
4474 MonoMethod *m = tmp->data;
4475 generic_array_method_info [i].array_method = m;
4476 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
4477 iname = "System.Collections.Generic.ICollection`1.";
4478 mname = m->name + 27;
4479 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
4480 iname = "System.Collections.Generic.IEnumerable`1.";
4481 mname = m->name + 27;
4482 } else if (!strncmp (m->name, "InternalArray__", 15)) {
4483 iname = "System.Collections.Generic.IList`1.";
4484 mname = m->name + 15;
4486 g_assert_not_reached ();
4489 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
4490 strcpy (name, iname);
4491 strcpy (name + strlen (iname), mname);
4492 generic_array_method_info [i].name = name;
4495 /*g_print ("array generic methods: %d\n", count_generic);*/
4497 generic_array_method_num = count_generic;
4499 return generic_array_method_num;
4503 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
4505 MonoGenericContext tmp_context;
4508 tmp_context.class_inst = NULL;
4509 tmp_context.method_inst = iface->generic_class->context.class_inst;
4510 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
4512 for (i = 0; i < generic_array_method_num; i++) {
4513 MonoMethod *m = generic_array_method_info [i].array_method;
4514 MonoMethod *inflated;
4516 inflated = mono_class_inflate_generic_method (m, &tmp_context);
4517 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
4522 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
4524 int null_length = strlen ("(null)");
4525 int len = (s1 ? strlen (s1) : null_length) + (s2 ? strlen (s2) : null_length) + 2;
4526 char *s = mono_image_alloc (image, len);
4529 result = g_snprintf (s, len, "%s%c%s", s1 ? s1 : "(null)", '\0', s2 ? s2 : "(null)");
4530 g_assert (result == len - 1);
4536 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
4538 gpointer exception_data = NULL;
4540 switch (error->exception_type) {
4541 case MONO_EXCEPTION_TYPE_LOAD:
4542 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
4545 case MONO_EXCEPTION_MISSING_METHOD:
4546 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
4549 case MONO_EXCEPTION_MISSING_FIELD: {
4550 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
4551 const char *class_name;
4554 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
4556 class_name = error->klass->name;
4558 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
4561 g_free ((void*)class_name);
4565 case MONO_EXCEPTION_FILE_NOT_FOUND: {
4568 if (error->ref_only)
4569 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.";
4571 msg = "Could not load file or assembly '%s' or one of its dependencies.";
4573 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
4577 case MONO_EXCEPTION_BAD_IMAGE:
4578 exception_data = error->msg;
4582 g_assert_not_reached ();
4585 mono_class_set_failure (class, error->exception_type, exception_data);
4590 * @class: the class to initialize
4592 * Compute the instance_size, class_size and other infos that cannot be
4593 * computed at mono_class_get() time. Also compute vtable_size if possible.
4594 * Returns TRUE on success or FALSE if there was a problem in loading
4595 * the type (incorrect assemblies, missing assemblies, methods, etc).
4597 * LOCKING: Acquires the loader lock.
4600 mono_class_init (MonoClass *class)
4603 MonoCachedClassInfo cached_info;
4604 gboolean has_cached_info;
4608 /* Double-checking locking pattern */
4609 if (class->inited || class->exception_type)
4610 return class->exception_type == MONO_EXCEPTION_NONE;
4612 /*g_print ("Init class %s\n", mono_type_get_full_name (class));*/
4614 /* We do everything inside the lock to prevent races */
4615 mono_loader_lock ();
4617 if (class->inited || class->exception_type) {
4618 mono_loader_unlock ();
4619 /* Somebody might have gotten in before us */
4620 return class->exception_type == MONO_EXCEPTION_NONE;
4623 if (class->init_pending) {
4624 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Recursive type definition detected"));
4628 class->init_pending = 1;
4630 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
4631 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
4636 if (class->byval_arg.type == MONO_TYPE_ARRAY || class->byval_arg.type == MONO_TYPE_SZARRAY) {
4637 MonoClass *element_class = class->element_class;
4638 if (!element_class->inited)
4639 mono_class_init (element_class);
4640 if (element_class->exception_type != MONO_EXCEPTION_NONE) {
4641 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4646 /* CAS - SecurityAction.InheritanceDemand */
4647 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
4648 mono_secman_inheritancedemand_class (class, class->parent);
4651 mono_stats.initialized_class_count++;
4653 if (class->generic_class && !class->generic_class->is_dynamic) {
4654 MonoClass *gklass = class->generic_class->container_class;
4656 mono_stats.generic_class_count++;
4658 class->method = gklass->method;
4659 class->field = gklass->field;
4661 mono_class_init (gklass);
4662 // FIXME: Why is this needed ?
4663 if (!gklass->exception_type)
4664 mono_class_setup_methods (gklass);
4665 if (gklass->exception_type) {
4666 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Generic Type Defintion failed to init"));
4670 if (MONO_CLASS_IS_INTERFACE (class))
4671 class->interface_id = mono_get_unique_iid (class);
4674 if (class->parent && !class->parent->inited)
4675 mono_class_init (class->parent);
4677 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
4679 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
4680 class->nested_classes_inited = TRUE;
4683 * Computes the size used by the fields, and their locations
4685 if (has_cached_info) {
4686 class->instance_size = cached_info.instance_size;
4687 class->sizes.class_size = cached_info.class_size;
4688 class->packing_size = cached_info.packing_size;
4689 class->min_align = cached_info.min_align;
4690 class->blittable = cached_info.blittable;
4691 class->has_references = cached_info.has_references;
4692 class->has_static_refs = cached_info.has_static_refs;
4693 class->no_special_static_fields = cached_info.no_special_static_fields;
4696 if (!class->size_inited){
4697 mono_class_setup_fields (class);
4698 if (class->exception_type || mono_loader_get_last_error ())
4702 /* Initialize arrays */
4704 class->method.count = 3 + (class->rank > 1? 2: 1);
4706 if (class->interface_count) {
4707 int count_generic = generic_array_methods (class);
4708 class->method.count += class->interface_count * count_generic;
4712 mono_class_setup_supertypes (class);
4715 initialize_object_slots (class);
4718 * Initialize the rest of the data without creating a generic vtable if possible.
4719 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
4720 * also avoid computing a generic vtable.
4722 if (has_cached_info) {
4724 class->vtable_size = cached_info.vtable_size;
4725 class->has_finalize = cached_info.has_finalize;
4726 class->ghcimpl = cached_info.ghcimpl;
4727 class->has_cctor = cached_info.has_cctor;
4728 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
4729 /* SZARRAY can have 2 vtable layouts, with and without the stelemref method.
4730 * The first slot if for array with.
4732 static int szarray_vtable_size[2] = { 0 };
4734 int slot = MONO_TYPE_IS_REFERENCE (&class->element_class->byval_arg) ? 0 : 1;
4737 if (!szarray_vtable_size [slot]) {
4738 mono_class_setup_vtable (class);
4739 szarray_vtable_size [slot] = class->vtable_size;
4741 class->vtable_size = szarray_vtable_size[slot];
4743 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
4744 MonoClass *gklass = class->generic_class->container_class;
4746 /* Generic instance case */
4747 class->ghcimpl = gklass->ghcimpl;
4748 class->has_finalize = gklass->has_finalize;
4749 class->has_cctor = gklass->has_cctor;
4751 mono_class_setup_vtable (gklass);
4752 if (gklass->exception_type) {
4753 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4757 class->vtable_size = gklass->vtable_size;
4761 /* ghcimpl is not currently used
4763 if (class->parent) {
4764 MonoMethod *cmethod = class->vtable [ghc_slot];
4765 if (cmethod->is_inflated)
4766 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4767 if (cmethod == default_ghc) {
4773 /* Interfaces and valuetypes are not supposed to have finalizers */
4774 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
4775 MonoMethod *cmethod = NULL;
4777 if (class->parent && class->parent->has_finalize) {
4778 class->has_finalize = 1;
4780 if (class->type_token) {
4781 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
4782 } else if (class->parent) {
4783 /* FIXME: Optimize this */
4784 mono_class_setup_vtable (class);
4785 if (class->exception_type || mono_loader_get_last_error ())
4787 cmethod = class->vtable [finalize_slot];
4791 /* Check that this is really the finalizer method */
4792 mono_class_setup_vtable (class);
4793 if (class->exception_type || mono_loader_get_last_error ())
4796 g_assert (class->vtable_size > finalize_slot);
4798 class->has_finalize = 0;
4799 if (class->parent) {
4800 cmethod = class->vtable [finalize_slot];
4802 if (cmethod->is_inflated)
4803 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4804 if (cmethod != default_finalize) {
4805 class->has_finalize = 1;
4812 /* C# doesn't allow interfaces to have cctors */
4813 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
4814 MonoMethod *cmethod = NULL;
4816 if (class->type_token) {
4817 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
4818 /* The find_method function ignores the 'flags' argument */
4819 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
4820 class->has_cctor = 1;
4822 mono_class_setup_methods (class);
4823 if (class->exception_type)
4826 for (i = 0; i < class->method.count; ++i) {
4827 MonoMethod *method = class->methods [i];
4828 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
4829 (strcmp (".cctor", method->name) == 0)) {
4830 class->has_cctor = 1;
4838 if (class->parent) {
4839 int first_iface_slot;
4840 /* This will compute class->parent->vtable_size for some classes */
4841 mono_class_init (class->parent);
4842 if (class->parent->exception_type) {
4843 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4846 if (mono_loader_get_last_error ())
4848 if (!class->parent->vtable_size) {
4849 /* FIXME: Get rid of this somehow */
4850 mono_class_setup_vtable (class->parent);
4851 if (class->parent->exception_type) {
4852 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4855 if (mono_loader_get_last_error ())
4858 first_iface_slot = class->parent->vtable_size;
4859 if (mono_class_need_stelemref_method (class))
4861 setup_interface_offsets (class, first_iface_slot);
4863 setup_interface_offsets (class, 0);
4866 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
4867 mono_security_core_clr_check_inheritance (class);
4869 if (mono_loader_get_last_error ()) {
4870 if (class->exception_type == MONO_EXCEPTION_NONE) {
4871 set_failure_from_loader_error (class, mono_loader_get_last_error ());
4873 mono_loader_clear_error ();
4879 /* Because of the double-checking locking pattern */
4880 mono_memory_barrier ();
4882 class->init_pending = 0;
4884 mono_loader_unlock ();
4886 if (mono_debugger_class_init_func)
4887 mono_debugger_class_init_func (class);
4889 return class->exception_type == MONO_EXCEPTION_NONE;
4893 mono_is_corlib_image (MonoImage *image)
4895 /* FIXME: allow the dynamic case for our compilers and with full trust */
4897 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
4899 return image == mono_defaults.corlib;
4903 * LOCKING: this assumes the loader lock is held
4906 mono_class_setup_mono_type (MonoClass *class)
4908 const char *name = class->name;
4909 const char *nspace = class->name_space;
4910 gboolean is_corlib = mono_is_corlib_image (class->image);
4912 class->this_arg.byref = 1;
4913 class->this_arg.data.klass = class;
4914 class->this_arg.type = MONO_TYPE_CLASS;
4915 class->byval_arg.data.klass = class;
4916 class->byval_arg.type = MONO_TYPE_CLASS;
4918 if (is_corlib && !strcmp (nspace, "System")) {
4919 if (!strcmp (name, "ValueType")) {
4921 * do not set the valuetype bit for System.ValueType.
4922 * class->valuetype = 1;
4924 class->blittable = TRUE;
4925 } else if (!strcmp (name, "Enum")) {
4927 * do not set the valuetype bit for System.Enum.
4928 * class->valuetype = 1;
4930 class->valuetype = 0;
4931 class->enumtype = 0;
4932 } else if (!strcmp (name, "Object")) {
4933 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
4934 } else if (!strcmp (name, "String")) {
4935 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
4936 } else if (!strcmp (name, "TypedReference")) {
4937 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
4941 if (class->valuetype) {
4942 int t = MONO_TYPE_VALUETYPE;
4944 if (is_corlib && !strcmp (nspace, "System")) {
4947 if (!strcmp (name, "Boolean")) {
4948 t = MONO_TYPE_BOOLEAN;
4949 } else if (!strcmp(name, "Byte")) {
4951 class->blittable = TRUE;
4955 if (!strcmp (name, "Char")) {
4960 if (!strcmp (name, "Double")) {
4962 class->blittable = TRUE;
4966 if (!strcmp (name, "Int32")) {
4968 class->blittable = TRUE;
4969 } else if (!strcmp(name, "Int16")) {
4971 class->blittable = TRUE;
4972 } else if (!strcmp(name, "Int64")) {
4974 class->blittable = TRUE;
4975 } else if (!strcmp(name, "IntPtr")) {
4977 class->blittable = TRUE;
4981 if (!strcmp (name, "Single")) {
4983 class->blittable = TRUE;
4984 } else if (!strcmp(name, "SByte")) {
4986 class->blittable = TRUE;
4990 if (!strcmp (name, "UInt32")) {
4992 class->blittable = TRUE;
4993 } else if (!strcmp(name, "UInt16")) {
4995 class->blittable = TRUE;
4996 } else if (!strcmp(name, "UInt64")) {
4998 class->blittable = TRUE;
4999 } else if (!strcmp(name, "UIntPtr")) {
5001 class->blittable = TRUE;
5005 if (!strcmp (name, "TypedReference")) {
5006 t = MONO_TYPE_TYPEDBYREF;
5007 class->blittable = TRUE;
5011 if (!strcmp (name, "Void")) {
5019 class->this_arg.type = class->byval_arg.type = t;
5022 if (MONO_CLASS_IS_INTERFACE (class))
5023 class->interface_id = mono_get_unique_iid (class);
5028 * COM initialization (using mono_init_com_types) is delayed until needed.
5029 * However when a [ComImport] attribute is present on a type it will trigger
5030 * the initialization. This is not a problem unless the BCL being executed
5031 * lacks the types that COM depends on (e.g. Variant on Silverlight).
5034 init_com_from_comimport (MonoClass *class)
5036 /* we don't always allow COM initialization under the CoreCLR (e.g. Moonlight does not require it) */
5037 if ((mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)) {
5038 /* but some other CoreCLR user could requires it for their platform (i.e. trusted) code */
5039 if (!mono_security_core_clr_determine_platform_image (class->image)) {
5040 /* but it can not be made available for application (i.e. user code) since all COM calls
5041 * are considered native calls. In this case we fail with a TypeLoadException (just like
5042 * Silverlight 2 does */
5043 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5047 /* FIXME : we should add an extra checks to ensure COM can be initialized properly before continuing */
5048 mono_init_com_types ();
5052 * LOCKING: this assumes the loader lock is held
5055 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
5057 gboolean system_namespace;
5058 gboolean is_corlib = mono_is_corlib_image (class->image);
5060 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
5062 /* if root of the hierarchy */
5063 if (system_namespace && !strcmp (class->name, "Object")) {
5064 class->parent = NULL;
5065 class->instance_size = sizeof (MonoObject);
5068 if (!strcmp (class->name, "<Module>")) {
5069 class->parent = NULL;
5070 class->instance_size = 0;
5074 if (!MONO_CLASS_IS_INTERFACE (class)) {
5075 /* Imported COM Objects always derive from __ComObject. */
5076 if (MONO_CLASS_IS_IMPORT (class)) {
5077 init_com_from_comimport (class);
5078 if (parent == mono_defaults.object_class)
5079 parent = mono_defaults.com_object_class;
5082 /* set the parent to something useful and safe, but mark the type as broken */
5083 parent = mono_defaults.object_class;
5084 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5087 class->parent = parent;
5089 if (parent->generic_class && !parent->name) {
5091 * If the parent is a generic instance, we may get
5092 * called before it is fully initialized, especially
5093 * before it has its name.
5098 class->marshalbyref = parent->marshalbyref;
5099 class->contextbound = parent->contextbound;
5100 class->delegate = parent->delegate;
5101 if (MONO_CLASS_IS_IMPORT (class))
5102 class->is_com_object = 1;
5104 class->is_com_object = parent->is_com_object;
5106 if (system_namespace) {
5107 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
5108 class->marshalbyref = 1;
5110 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
5111 class->contextbound = 1;
5113 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
5114 class->delegate = 1;
5117 if (class->parent->enumtype || (mono_is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
5118 (strcmp (class->parent->name_space, "System") == 0)))
5119 class->valuetype = 1;
5120 if (mono_is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
5121 class->valuetype = class->enumtype = 1;
5123 /*class->enumtype = class->parent->enumtype; */
5124 mono_class_setup_supertypes (class);
5126 /* initialize com types if COM interfaces are present */
5127 if (MONO_CLASS_IS_IMPORT (class))
5128 init_com_from_comimport (class);
5129 class->parent = NULL;
5135 * mono_class_setup_supertypes:
5138 * Build the data structure needed to make fast type checks work.
5139 * This currently sets two fields in @class:
5140 * - idepth: distance between @class and System.Object in the type
5142 * - supertypes: array of classes: each element has a class in the hierarchy
5143 * starting from @class up to System.Object
5145 * LOCKING: this assumes the loader lock is held
5148 mono_class_setup_supertypes (MonoClass *class)
5152 if (class->supertypes)
5155 if (class->parent && !class->parent->supertypes)
5156 mono_class_setup_supertypes (class->parent);
5158 class->idepth = class->parent->idepth + 1;
5162 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
5163 class->supertypes = mono_class_alloc0 (class, sizeof (MonoClass *) * ms);
5165 if (class->parent) {
5166 class->supertypes [class->idepth - 1] = class;
5167 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
5169 class->supertypes [0] = class;
5174 * mono_class_create_from_typedef:
5175 * @image: image where the token is valid
5176 * @type_token: typedef token
5178 * Create the MonoClass* representing the specified type token.
5179 * @type_token must be a TypeDef token.
5181 * FIXME: don't return NULL on failure, just the the caller figure it out.
5184 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
5186 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5187 MonoClass *class, *parent = NULL;
5188 guint32 cols [MONO_TYPEDEF_SIZE];
5189 guint32 cols_next [MONO_TYPEDEF_SIZE];
5190 guint tidx = mono_metadata_token_index (type_token);
5191 MonoGenericContext *context = NULL;
5192 const char *name, *nspace;
5194 MonoClass **interfaces;
5195 guint32 field_last, method_last;
5196 guint32 nesting_tokeen;
5198 if (mono_metadata_token_table (type_token) != MONO_TABLE_TYPEDEF || tidx > tt->rows)
5201 mono_loader_lock ();
5203 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
5204 mono_loader_unlock ();
5208 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5210 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5211 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5213 class = mono_image_alloc0 (image, sizeof (MonoClass));
5216 class->name_space = nspace;
5218 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
5220 class->image = image;
5221 class->type_token = type_token;
5222 class->flags = cols [MONO_TYPEDEF_FLAGS];
5224 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
5226 classes_size += sizeof (MonoClass);
5229 * Check whether we're a generic type definition.
5231 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
5232 if (class->generic_container) {
5233 class->is_generic = 1;
5234 class->generic_container->owner.klass = class;
5235 context = &class->generic_container->context;
5238 if (cols [MONO_TYPEDEF_EXTENDS]) {
5240 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
5242 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
5243 /*WARNING: this must satisfy mono_metadata_type_hash*/
5244 class->this_arg.byref = 1;
5245 class->this_arg.data.klass = class;
5246 class->this_arg.type = MONO_TYPE_CLASS;
5247 class->byval_arg.data.klass = class;
5248 class->byval_arg.type = MONO_TYPE_CLASS;
5250 parent = mono_class_get_full (image, parent_token, context);
5252 if (parent == NULL){
5253 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load parent type"));
5254 mono_loader_clear_error ();
5255 goto parent_failure;
5258 for (tmp = parent; tmp; tmp = tmp->parent) {
5260 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cycle found while resolving parent"));
5261 goto parent_failure;
5263 if (class->generic_container && tmp->generic_class && tmp->generic_class->container_class == class) {
5264 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Parent extends generic instance of this type"));
5265 goto parent_failure;
5270 mono_class_setup_parent (class, parent);
5272 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
5273 mono_class_setup_mono_type (class);
5276 * This might access class->byval_arg for recursion generated by generic constraints,
5277 * so it has to come after setup_mono_type ().
5279 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token))) {
5280 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
5281 if (!class->nested_in) {
5282 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load nestedin type"));
5283 mono_loader_unlock ();
5284 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5289 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
5293 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
5297 class->cast_class = class->element_class = class;
5299 if (!class->enumtype) {
5300 if (!mono_metadata_interfaces_from_typedef_full (
5301 image, type_token, &interfaces, &icount, FALSE, context)){
5302 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load interfaces"));
5303 mono_loader_unlock ();
5304 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5308 class->interfaces = interfaces;
5309 class->interface_count = icount;
5310 class->interfaces_inited = 1;
5313 /*g_print ("Load class %s\n", name);*/
5316 * Compute the field and method lists
5318 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
5319 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
5321 if (tt->rows > tidx){
5322 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
5323 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
5324 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
5326 field_last = image->tables [MONO_TABLE_FIELD].rows;
5327 method_last = image->tables [MONO_TABLE_METHOD].rows;
5330 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
5331 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
5332 class->field.count = field_last - class->field.first;
5334 class->field.count = 0;
5336 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
5337 class->method.count = method_last - class->method.first;
5339 class->method.count = 0;
5341 /* reserve space to store vector pointer in arrays */
5342 if (mono_is_corlib_image (image) && !strcmp (nspace, "System") && !strcmp (name, "Array")) {
5343 class->instance_size += 2 * sizeof (gpointer);
5344 g_assert (class->field.count == 0);
5347 if (class->enumtype) {
5348 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
5349 if (!enum_basetype) {
5350 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5351 mono_loader_unlock ();
5352 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5355 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
5359 * If we're a generic type definition, load the constraints.
5360 * We must do this after the class has been constructed to make certain recursive scenarios
5363 if (class->generic_container && !mono_metadata_load_generic_param_constraints_full (image, type_token, class->generic_container)){
5364 char *class_name = g_strdup_printf("%s.%s", class->name_space, class->name);
5365 char *error = concat_two_strings_with_zero (class->image, class_name, class->image->assembly_name);
5366 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, error);
5367 g_free (class_name);
5368 mono_loader_unlock ();
5369 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5373 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
5374 if (!strncmp (name, "Vector", 6))
5375 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");
5378 mono_loader_unlock ();
5380 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
5385 mono_class_setup_mono_type (class);
5386 mono_loader_unlock ();
5387 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5392 /** is klass Nullable<T>? */
5394 mono_class_is_nullable (MonoClass *klass)
5396 return klass->generic_class != NULL &&
5397 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
5401 /** if klass is T? return T */
5403 mono_class_get_nullable_param (MonoClass *klass)
5405 g_assert (mono_class_is_nullable (klass));
5406 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
5410 * Create the `MonoClass' for an instantiation of a generic type.
5411 * We only do this if we actually need it.
5414 mono_generic_class_get_class (MonoGenericClass *gclass)
5416 MonoClass *klass, *gklass;
5418 mono_loader_lock ();
5419 if (gclass->cached_class) {
5420 mono_loader_unlock ();
5421 return gclass->cached_class;
5424 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
5425 klass = gclass->cached_class;
5427 gklass = gclass->container_class;
5429 if (gklass->nested_in) {
5430 /* The nested_in type should not be inflated since it's possible to produce a nested type with less generic arguments*/
5431 klass->nested_in = gklass->nested_in;
5434 klass->name = gklass->name;
5435 klass->name_space = gklass->name_space;
5437 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5439 klass->image = gklass->image;
5440 klass->flags = gklass->flags;
5441 klass->type_token = gklass->type_token;
5442 klass->field.count = gklass->field.count;
5444 klass->is_inflated = 1;
5445 klass->generic_class = gclass;
5447 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
5448 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
5449 klass->this_arg.byref = TRUE;
5450 klass->enumtype = gklass->enumtype;
5451 klass->valuetype = gklass->valuetype;
5453 klass->cast_class = klass->element_class = klass;
5455 if (mono_class_is_nullable (klass))
5456 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
5459 * We're not interested in the nested classes of a generic instance.
5460 * We use the generic type definition to look for nested classes.
5463 if (gklass->parent) {
5464 klass->parent = mono_class_inflate_generic_class (gklass->parent, mono_generic_class_get_context (gclass));
5468 mono_class_setup_parent (klass, klass->parent);
5470 if (klass->enumtype) {
5471 klass->cast_class = gklass->cast_class;
5472 klass->element_class = gklass->element_class;
5475 if (gclass->is_dynamic) {
5478 mono_class_setup_supertypes (klass);
5480 if (klass->enumtype) {
5482 * For enums, gklass->fields might not been set, but instance_size etc. is
5483 * already set in mono_reflection_create_internal_class (). For non-enums,
5484 * these will be computed normally in mono_class_layout_fields ().
5486 klass->instance_size = gklass->instance_size;
5487 klass->sizes.class_size = gklass->sizes.class_size;
5488 klass->size_inited = 1;
5492 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5494 inflated_classes ++;
5495 inflated_classes_size += sizeof (MonoClass);
5497 mono_loader_unlock ();
5503 make_generic_param_class (MonoGenericParam *param, MonoImage *image, gboolean is_mvar, MonoGenericParamInfo *pinfo)
5505 MonoClass *klass, **ptr;
5507 MonoGenericContainer *container = mono_generic_param_owner (param);
5511 image = mono_defaults.corlib;
5513 klass = mono_image_alloc0 (image, sizeof (MonoClass));
5514 classes_size += sizeof (MonoClass);
5517 klass->name = pinfo->name;
5519 int n = mono_generic_param_num (param);
5520 klass->name = mono_image_alloc0 (image, 16);
5521 sprintf ((char*)klass->name, "%d", n);
5526 MonoMethod *omethod = container->owner.method;
5527 klass->name_space = (omethod && omethod->klass) ? omethod->klass->name_space : "";
5529 MonoClass *oklass = container->owner.klass;
5530 klass->name_space = oklass ? oklass->name_space : "";
5533 klass->name_space = "";
5536 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5540 for (ptr = pinfo->constraints; ptr && *ptr; ptr++, count++)
5544 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (pinfo->constraints [0])) {
5545 klass->parent = pinfo->constraints [0];
5547 } else if (pinfo && pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
5548 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
5550 klass->parent = mono_defaults.object_class;
5553 if (count - pos > 0) {
5554 klass->interface_count = count - pos;
5555 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
5556 klass->interfaces_inited = TRUE;
5557 for (i = pos; i < count; i++)
5558 klass->interfaces [i - pos] = pinfo->constraints [i];
5561 klass->image = image;
5563 klass->inited = TRUE;
5564 klass->cast_class = klass->element_class = klass;
5565 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
5567 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5568 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
5569 klass->this_arg.byref = TRUE;
5571 /* We don't use type_token for VAR since only classes can use it (not arrays, pointer, VARs, etc) */
5572 klass->sizes.generic_param_token = pinfo ? pinfo->token : 0;
5574 /*Init these fields to sane values*/
5575 klass->min_align = 1;
5576 klass->instance_size = sizeof (gpointer);
5577 klass->size_inited = 1;
5579 mono_class_setup_supertypes (klass);
5581 if (count - pos > 0) {
5582 mono_class_setup_vtable (klass->parent);
5583 g_assert (!klass->parent->exception_type);
5584 setup_interface_offsets (klass, klass->parent->vtable_size);
5590 #define FAST_CACHE_SIZE 16
5591 static MonoClass *var_cache_fast [FAST_CACHE_SIZE];
5592 static MonoClass *mvar_cache_fast [FAST_CACHE_SIZE];
5593 static GHashTable *var_cache_slow;
5594 static GHashTable *mvar_cache_slow;
5597 get_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar)
5599 int n = mono_generic_param_num (param);
5602 if (n < FAST_CACHE_SIZE)
5603 return (is_mvar ? mvar_cache_fast : var_cache_fast) [n];
5604 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
5605 return ht ? g_hash_table_lookup (ht, GINT_TO_POINTER (n)) : NULL;
5609 set_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar, MonoClass *klass)
5611 int n = mono_generic_param_num (param);
5614 if (n < FAST_CACHE_SIZE) {
5615 (is_mvar ? mvar_cache_fast : var_cache_fast) [n] = klass;
5618 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
5620 ht = g_hash_table_new (NULL, NULL);
5622 mvar_cache_slow = ht;
5624 var_cache_slow = ht;
5627 g_hash_table_insert (ht, GINT_TO_POINTER (n), klass);
5631 * LOCKING: Acquires the loader lock.
5634 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
5636 MonoGenericContainer *container = mono_generic_param_owner (param);
5637 MonoGenericParamInfo *pinfo;
5640 mono_loader_lock ();
5643 pinfo = mono_generic_param_info (param);
5644 if (pinfo->pklass) {
5645 mono_loader_unlock ();
5646 return pinfo->pklass;
5652 klass = get_anon_gparam_class (param, is_mvar);
5654 mono_loader_unlock ();
5659 if (!image && container) {
5661 MonoMethod *method = container->owner.method;
5662 image = (method && method->klass) ? method->klass->image : NULL;
5664 MonoClass *klass = container->owner.klass;
5665 // FIXME: 'klass' should not be null
5666 // But, monodis creates GenericContainers without associating a owner to it
5667 image = klass ? klass->image : NULL;
5671 klass = make_generic_param_class (param, image, is_mvar, pinfo);
5673 mono_memory_barrier ();
5676 pinfo->pklass = klass;
5678 set_anon_gparam_class (param, is_mvar, klass);
5680 mono_loader_unlock ();
5682 /* FIXME: Should this go inside 'make_generic_param_klass'? */
5683 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5689 mono_ptr_class_get (MonoType *type)
5692 MonoClass *el_class;
5696 el_class = mono_class_from_mono_type (type);
5697 image = el_class->image;
5699 mono_loader_lock ();
5701 if (!image->ptr_cache)
5702 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5704 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
5705 mono_loader_unlock ();
5708 result = mono_image_alloc0 (image, sizeof (MonoClass));
5710 classes_size += sizeof (MonoClass);
5712 result->parent = NULL; /* no parent for PTR types */
5713 result->name_space = el_class->name_space;
5714 name = g_strdup_printf ("%s*", el_class->name);
5715 result->name = mono_image_strdup (image, name);
5718 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5720 result->image = el_class->image;
5721 result->inited = TRUE;
5722 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
5723 /* Can pointers get boxed? */
5724 result->instance_size = sizeof (gpointer);
5725 result->cast_class = result->element_class = el_class;
5726 result->blittable = TRUE;
5728 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
5729 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
5730 result->this_arg.byref = TRUE;
5732 mono_class_setup_supertypes (result);
5734 g_hash_table_insert (image->ptr_cache, el_class, result);
5736 mono_loader_unlock ();
5738 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5744 mono_fnptr_class_get (MonoMethodSignature *sig)
5747 static GHashTable *ptr_hash = NULL;
5749 /* FIXME: These should be allocate from a mempool as well, but which one ? */
5751 mono_loader_lock ();
5754 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5756 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
5757 mono_loader_unlock ();
5760 result = g_new0 (MonoClass, 1);
5762 result->parent = NULL; /* no parent for PTR types */
5763 result->name_space = "System";
5764 result->name = "MonoFNPtrFakeClass";
5766 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5768 result->image = mono_defaults.corlib; /* need to fix... */
5769 result->inited = TRUE;
5770 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
5771 /* Can pointers get boxed? */
5772 result->instance_size = sizeof (gpointer);
5773 result->cast_class = result->element_class = result;
5774 result->blittable = TRUE;
5776 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
5777 result->this_arg.data.method = result->byval_arg.data.method = sig;
5778 result->this_arg.byref = TRUE;
5779 result->blittable = TRUE;
5781 mono_class_setup_supertypes (result);
5783 g_hash_table_insert (ptr_hash, sig, result);
5785 mono_loader_unlock ();
5787 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5793 mono_class_from_mono_type (MonoType *type)
5795 switch (type->type) {
5796 case MONO_TYPE_OBJECT:
5797 return type->data.klass? type->data.klass: mono_defaults.object_class;
5798 case MONO_TYPE_VOID:
5799 return type->data.klass? type->data.klass: mono_defaults.void_class;
5800 case MONO_TYPE_BOOLEAN:
5801 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
5802 case MONO_TYPE_CHAR:
5803 return type->data.klass? type->data.klass: mono_defaults.char_class;
5805 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
5807 return type->data.klass? type->data.klass: mono_defaults.byte_class;
5809 return type->data.klass? type->data.klass: mono_defaults.int16_class;
5811 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
5813 return type->data.klass? type->data.klass: mono_defaults.int32_class;
5815 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
5817 return type->data.klass? type->data.klass: mono_defaults.int_class;
5819 return type->data.klass? type->data.klass: mono_defaults.uint_class;
5821 return type->data.klass? type->data.klass: mono_defaults.int64_class;
5823 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
5825 return type->data.klass? type->data.klass: mono_defaults.single_class;
5827 return type->data.klass? type->data.klass: mono_defaults.double_class;
5828 case MONO_TYPE_STRING:
5829 return type->data.klass? type->data.klass: mono_defaults.string_class;
5830 case MONO_TYPE_TYPEDBYREF:
5831 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
5832 case MONO_TYPE_ARRAY:
5833 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
5835 return mono_ptr_class_get (type->data.type);
5836 case MONO_TYPE_FNPTR:
5837 return mono_fnptr_class_get (type->data.method);
5838 case MONO_TYPE_SZARRAY:
5839 return mono_array_class_get (type->data.klass, 1);
5840 case MONO_TYPE_CLASS:
5841 case MONO_TYPE_VALUETYPE:
5842 return type->data.klass;
5843 case MONO_TYPE_GENERICINST:
5844 return mono_generic_class_get_class (type->data.generic_class);
5846 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
5847 case MONO_TYPE_MVAR:
5848 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
5850 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
5851 g_assert_not_reached ();
5858 * mono_type_retrieve_from_typespec
5859 * @image: context where the image is created
5860 * @type_spec: typespec token
5861 * @context: the generic context used to evaluate generic instantiations in
5864 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate, MonoError *error)
5866 MonoType *t = mono_type_create_from_typespec (image, type_spec);
5868 mono_error_init (error);
5869 *did_inflate = FALSE;
5872 char *name = mono_class_name_from_token (image, type_spec);
5873 char *assembly = mono_assembly_name_from_token (image, type_spec);
5874 mono_error_set_type_load_name (error, name, assembly, "Could not resolve typespec token %08x", type_spec);
5878 if (context && (context->class_inst || context->method_inst)) {
5879 MonoType *inflated = inflate_generic_type (NULL, t, context, error);
5881 if (!mono_error_ok (error))
5886 *did_inflate = TRUE;
5893 * mono_class_create_from_typespec
5894 * @image: context where the image is created
5895 * @type_spec: typespec token
5896 * @context: the generic context used to evaluate generic instantiations in
5899 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, MonoError *error)
5902 gboolean inflated = FALSE;
5903 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated, error);
5904 if (!mono_error_ok (error))
5906 ret = mono_class_from_mono_type (t);
5908 mono_metadata_free_type (t);
5913 * mono_bounded_array_class_get:
5914 * @element_class: element class
5915 * @rank: the dimension of the array class
5916 * @bounded: whenever the array has non-zero bounds
5918 * Returns: a class object describing the array with element type @element_type and
5922 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
5926 MonoClass *parent = NULL;
5927 GSList *list, *rootlist = NULL;
5930 gboolean corlib_type = FALSE;
5932 g_assert (rank <= 255);
5935 /* bounded only matters for one-dimensional arrays */
5938 image = eclass->image;
5940 if (rank == 1 && !bounded) {
5942 * This case is very frequent not just during compilation because of calls
5943 * from mono_class_from_mono_type (), mono_array_new (),
5944 * Array:CreateInstance (), etc, so use a separate cache + a separate lock.
5946 EnterCriticalSection (&image->szarray_cache_lock);
5947 if (!image->szarray_cache)
5948 image->szarray_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5949 class = g_hash_table_lookup (image->szarray_cache, eclass);
5950 LeaveCriticalSection (&image->szarray_cache_lock);
5954 mono_loader_lock ();
5956 mono_loader_lock ();
5958 if (!image->array_cache)
5959 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5961 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
5962 for (; list; list = list->next) {
5964 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
5965 mono_loader_unlock ();
5972 /* for the building corlib use System.Array from it */
5973 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
5974 parent = mono_class_from_name (image, "System", "Array");
5977 parent = mono_defaults.array_class;
5978 if (!parent->inited)
5979 mono_class_init (parent);
5982 class = mono_image_alloc0 (image, sizeof (MonoClass));
5984 class->image = image;
5985 class->name_space = eclass->name_space;
5986 nsize = strlen (eclass->name);
5987 name = g_malloc (nsize + 2 + rank + 1);
5988 memcpy (name, eclass->name, nsize);
5991 memset (name + nsize + 1, ',', rank - 1);
5993 name [nsize + rank] = '*';
5994 name [nsize + rank + bounded] = ']';
5995 name [nsize + rank + bounded + 1] = 0;
5996 class->name = mono_image_strdup (image, name);
5999 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
6001 classes_size += sizeof (MonoClass);
6003 class->type_token = 0;
6004 /* all arrays are marked serializable and sealed, bug #42779 */
6005 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED | TYPE_ATTRIBUTE_PUBLIC;
6006 class->parent = parent;
6007 class->instance_size = mono_class_instance_size (class->parent);
6009 if (eclass->byval_arg.type == MONO_TYPE_TYPEDBYREF || eclass->byval_arg.type == MONO_TYPE_VOID) {
6010 /*Arrays of those two types are invalid.*/
6011 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
6012 } else if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
6013 if (!eclass->ref_info_handle || eclass->wastypebuilder) {
6014 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
6015 g_assert (eclass->ref_info_handle && !eclass->wastypebuilder);
6017 /* element_size -1 is ok as this is not an instantitable type*/
6018 class->sizes.element_size = -1;
6020 class->sizes.element_size = mono_class_array_element_size (eclass);
6022 mono_class_setup_supertypes (class);
6024 if (eclass->generic_class)
6025 mono_class_init (eclass);
6026 if (!eclass->size_inited)
6027 mono_class_setup_fields (eclass);
6028 if (eclass->exception_type) /*FIXME we fail the array type, but we have to let other fields be set.*/
6029 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
6031 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
6035 if (eclass->enumtype)
6036 class->cast_class = eclass->element_class;
6038 class->cast_class = eclass;
6040 switch (class->cast_class->byval_arg.type) {
6042 class->cast_class = mono_defaults.byte_class;
6045 class->cast_class = mono_defaults.int16_class;
6048 #if SIZEOF_VOID_P == 4
6052 class->cast_class = mono_defaults.int32_class;
6055 #if SIZEOF_VOID_P == 8
6059 class->cast_class = mono_defaults.int64_class;
6063 class->element_class = eclass;
6065 if ((rank > 1) || bounded) {
6066 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
6067 class->byval_arg.type = MONO_TYPE_ARRAY;
6068 class->byval_arg.data.array = at;
6069 at->eklass = eclass;
6071 /* FIXME: complete.... */
6073 class->byval_arg.type = MONO_TYPE_SZARRAY;
6074 class->byval_arg.data.klass = eclass;
6076 class->this_arg = class->byval_arg;
6077 class->this_arg.byref = 1;
6082 class->generic_container = eclass->generic_container;
6084 if (rank == 1 && !bounded) {
6085 MonoClass *prev_class;
6087 EnterCriticalSection (&image->szarray_cache_lock);
6088 prev_class = g_hash_table_lookup (image->szarray_cache, eclass);
6090 /* Someone got in before us */
6093 g_hash_table_insert (image->szarray_cache, eclass, class);
6094 LeaveCriticalSection (&image->szarray_cache_lock);
6096 list = g_slist_append (rootlist, class);
6097 g_hash_table_insert (image->array_cache, eclass, list);
6100 mono_loader_unlock ();
6102 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
6108 * mono_array_class_get:
6109 * @element_class: element class
6110 * @rank: the dimension of the array class
6112 * Returns: a class object describing the array with element type @element_type and
6116 mono_array_class_get (MonoClass *eclass, guint32 rank)
6118 return mono_bounded_array_class_get (eclass, rank, FALSE);
6122 * mono_class_instance_size:
6125 * Returns: the size of an object instance
6128 mono_class_instance_size (MonoClass *klass)
6130 if (!klass->size_inited)
6131 mono_class_init (klass);
6133 return klass->instance_size;
6137 * mono_class_min_align:
6140 * Returns: minimm alignment requirements
6143 mono_class_min_align (MonoClass *klass)
6145 if (!klass->size_inited)
6146 mono_class_init (klass);
6148 return klass->min_align;
6152 * mono_class_value_size:
6155 * This function is used for value types, and return the
6156 * space and the alignment to store that kind of value object.
6158 * Returns: the size of a value of kind @klass
6161 mono_class_value_size (MonoClass *klass, guint32 *align)
6165 /* fixme: check disable, because we still have external revereces to
6166 * mscorlib and Dummy Objects
6168 /*g_assert (klass->valuetype);*/
6170 size = mono_class_instance_size (klass) - sizeof (MonoObject);
6173 *align = klass->min_align;
6179 * mono_class_data_size:
6182 * Returns: the size of the static class data
6185 mono_class_data_size (MonoClass *klass)
6188 mono_class_init (klass);
6190 /* in arrays, sizes.class_size is unioned with element_size
6191 * and arrays have no static fields
6195 return klass->sizes.class_size;
6199 * Auxiliary routine to mono_class_get_field
6201 * Takes a field index instead of a field token.
6203 static MonoClassField *
6204 mono_class_get_field_idx (MonoClass *class, int idx)
6206 mono_class_setup_fields_locking (class);
6207 if (class->exception_type)
6211 if (class->image->uncompressed_metadata) {
6213 * class->field.first points to the FieldPtr table, while idx points into the
6214 * Field table, so we have to do a search.
6216 /*FIXME this is broken for types with multiple fields with the same name.*/
6217 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
6220 for (i = 0; i < class->field.count; ++i)
6221 if (mono_field_get_name (&class->fields [i]) == name)
6222 return &class->fields [i];
6223 g_assert_not_reached ();
6225 if (class->field.count) {
6226 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
6227 return &class->fields [idx - class->field.first];
6231 class = class->parent;
6237 * mono_class_get_field:
6238 * @class: the class to lookup the field.
6239 * @field_token: the field token
6241 * Returns: A MonoClassField representing the type and offset of
6242 * the field, or a NULL value if the field does not belong to this
6246 mono_class_get_field (MonoClass *class, guint32 field_token)
6248 int idx = mono_metadata_token_index (field_token);
6250 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
6252 return mono_class_get_field_idx (class, idx - 1);
6256 * mono_class_get_field_from_name:
6257 * @klass: the class to lookup the field.
6258 * @name: the field name
6260 * Search the class @klass and it's parents for a field with the name @name.
6262 * Returns: the MonoClassField pointer of the named field or NULL
6265 mono_class_get_field_from_name (MonoClass *klass, const char *name)
6267 return mono_class_get_field_from_name_full (klass, name, NULL);
6271 * mono_class_get_field_from_name_full:
6272 * @klass: the class to lookup the field.
6273 * @name: the field name
6274 * @type: the type of the fields. This optional.
6276 * Search the class @klass and it's parents for a field with the name @name and type @type.
6278 * If @klass is an inflated generic type, the type comparison is done with the equivalent field
6279 * of its generic type definition.
6281 * Returns: the MonoClassField pointer of the named field or NULL
6284 mono_class_get_field_from_name_full (MonoClass *klass, const char *name, MonoType *type)
6288 mono_class_setup_fields_locking (klass);
6289 if (klass->exception_type)
6293 for (i = 0; i < klass->field.count; ++i) {
6294 MonoClassField *field = &klass->fields [i];
6296 if (strcmp (name, mono_field_get_name (field)) != 0)
6300 MonoType *field_type = mono_metadata_get_corresponding_field_from_generic_type_definition (field)->type;
6301 if (!mono_metadata_type_equal_full (type, field_type, TRUE))
6306 klass = klass->parent;
6312 * mono_class_get_field_token:
6313 * @field: the field we need the token of
6315 * Get the token of a field. Note that the tokesn is only valid for the image
6316 * the field was loaded from. Don't use this function for fields in dynamic types.
6318 * Returns: the token representing the field in the image it was loaded from.
6321 mono_class_get_field_token (MonoClassField *field)
6323 MonoClass *klass = field->parent;
6326 mono_class_setup_fields_locking (klass);
6327 if (klass->exception_type)
6331 for (i = 0; i < klass->field.count; ++i) {
6332 if (&klass->fields [i] == field) {
6333 int idx = klass->field.first + i + 1;
6335 if (klass->image->uncompressed_metadata)
6336 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
6337 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
6340 klass = klass->parent;
6343 g_assert_not_reached ();
6348 mono_field_get_index (MonoClassField *field)
6350 int index = field - field->parent->fields;
6352 g_assert (index >= 0 && index < field->parent->field.count);
6358 * mono_class_get_field_default_value:
6360 * Return the default value of the field as a pointer into the metadata blob.
6363 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
6366 guint32 constant_cols [MONO_CONSTANT_SIZE];
6368 MonoClass *klass = field->parent;
6370 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
6372 if (!klass->ext || !klass->ext->field_def_values) {
6373 mono_loader_lock ();
6374 mono_class_alloc_ext (klass);
6375 if (!klass->ext->field_def_values)
6376 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
6377 mono_loader_unlock ();
6380 field_index = mono_field_get_index (field);
6382 if (!klass->ext->field_def_values [field_index].data) {
6383 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
6385 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
6387 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6388 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
6389 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
6392 *def_type = klass->ext->field_def_values [field_index].def_type;
6393 return klass->ext->field_def_values [field_index].data;
6397 mono_property_get_index (MonoProperty *prop)
6399 int index = prop - prop->parent->ext->properties;
6401 g_assert (index >= 0 && index < prop->parent->ext->property.count);
6407 * mono_class_get_property_default_value:
6409 * Return the default value of the field as a pointer into the metadata blob.
6412 mono_class_get_property_default_value (MonoProperty *property, MonoTypeEnum *def_type)
6415 guint32 constant_cols [MONO_CONSTANT_SIZE];
6416 MonoClass *klass = property->parent;
6418 g_assert (property->attrs & PROPERTY_ATTRIBUTE_HAS_DEFAULT);
6420 * We don't cache here because it is not used by C# so it's quite rare, but
6421 * we still do the lookup in klass->ext because that is where the data
6422 * is stored for dynamic assemblies.
6425 if (klass->image->dynamic) {
6426 int prop_index = mono_property_get_index (property);
6427 if (klass->ext->prop_def_values && klass->ext->prop_def_values [prop_index].data) {
6428 *def_type = klass->ext->prop_def_values [prop_index].def_type;
6429 return klass->ext->prop_def_values [prop_index].data;
6433 cindex = mono_metadata_get_constant_index (klass->image, mono_class_get_property_token (property), 0);
6437 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6438 *def_type = constant_cols [MONO_CONSTANT_TYPE];
6439 return (gpointer)mono_metadata_blob_heap (klass->image, constant_cols [MONO_CONSTANT_VALUE]);
6443 mono_class_get_event_token (MonoEvent *event)
6445 MonoClass *klass = event->parent;
6450 for (i = 0; i < klass->ext->event.count; ++i) {
6451 if (&klass->ext->events [i] == event)
6452 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
6455 klass = klass->parent;
6458 g_assert_not_reached ();
6463 mono_class_get_property_from_name (MonoClass *klass, const char *name)
6467 gpointer iter = NULL;
6468 while ((p = mono_class_get_properties (klass, &iter))) {
6469 if (! strcmp (name, p->name))
6472 klass = klass->parent;
6478 mono_class_get_property_token (MonoProperty *prop)
6480 MonoClass *klass = prop->parent;
6484 gpointer iter = NULL;
6485 while ((p = mono_class_get_properties (klass, &iter))) {
6486 if (&klass->ext->properties [i] == prop)
6487 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
6491 klass = klass->parent;
6494 g_assert_not_reached ();
6499 mono_class_name_from_token (MonoImage *image, guint32 type_token)
6501 const char *name, *nspace;
6503 return g_strdup_printf ("DynamicType 0x%08x", type_token);
6505 switch (type_token & 0xff000000){
6506 case MONO_TOKEN_TYPE_DEF: {
6507 guint32 cols [MONO_TYPEDEF_SIZE];
6508 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
6509 guint tidx = mono_metadata_token_index (type_token);
6511 if (tidx > tt->rows)
6512 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6514 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
6515 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6516 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6517 if (strlen (nspace) == 0)
6518 return g_strdup_printf ("%s", name);
6520 return g_strdup_printf ("%s.%s", nspace, name);
6523 case MONO_TOKEN_TYPE_REF: {
6525 guint32 cols [MONO_TYPEREF_SIZE];
6526 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6527 guint tidx = mono_metadata_token_index (type_token);
6530 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6532 if (!mono_verifier_verify_typeref_row (image, tidx - 1, &error)) {
6533 char *msg = g_strdup_printf ("Invalid type token 0x%08x due to '%s'", type_token, mono_error_get_message (&error));
6534 mono_error_cleanup (&error);
6538 mono_metadata_decode_row (t, tidx-1, cols, MONO_TYPEREF_SIZE);
6539 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
6540 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
6541 if (strlen (nspace) == 0)
6542 return g_strdup_printf ("%s", name);
6544 return g_strdup_printf ("%s.%s", nspace, name);
6547 case MONO_TOKEN_TYPE_SPEC:
6548 return g_strdup_printf ("Typespec 0x%08x", type_token);
6550 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6555 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
6558 return g_strdup_printf ("DynamicAssembly %s", image->name);
6560 switch (type_token & 0xff000000){
6561 case MONO_TOKEN_TYPE_DEF:
6562 if (image->assembly)
6563 return mono_stringify_assembly_name (&image->assembly->aname);
6564 else if (image->assembly_name)
6565 return g_strdup (image->assembly_name);
6566 return g_strdup_printf ("%s", image->name ? image->name : "[Could not resolve assembly name");
6567 case MONO_TOKEN_TYPE_REF: {
6569 MonoAssemblyName aname;
6570 guint32 cols [MONO_TYPEREF_SIZE];
6571 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6572 guint32 idx = mono_metadata_token_index (type_token);
6575 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6577 if (!mono_verifier_verify_typeref_row (image, idx - 1, &error)) {
6578 char *msg = g_strdup_printf ("Invalid type token 0x%08x due to '%s'", type_token, mono_error_get_message (&error));
6579 mono_error_cleanup (&error);
6582 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPEREF_SIZE);
6584 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
6585 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
6586 case MONO_RESOLTION_SCOPE_MODULE:
6588 return g_strdup ("");
6589 case MONO_RESOLTION_SCOPE_MODULEREF:
6591 return g_strdup ("");
6592 case MONO_RESOLTION_SCOPE_TYPEREF:
6594 return g_strdup ("");
6595 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
6596 mono_assembly_get_assemblyref (image, idx - 1, &aname);
6597 return mono_stringify_assembly_name (&aname);
6599 g_assert_not_reached ();
6603 case MONO_TOKEN_TYPE_SPEC:
6605 return g_strdup ("");
6607 g_assert_not_reached ();
6614 * mono_class_get_full:
6615 * @image: the image where the class resides
6616 * @type_token: the token for the class
6617 * @context: the generic context used to evaluate generic instantiations in
6619 * Returns: the MonoClass that represents @type_token in @image
6622 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6625 MonoClass *class = NULL;
6627 if (image->dynamic) {
6628 int table = mono_metadata_token_table (type_token);
6630 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
6631 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
6634 return mono_lookup_dynamic_token (image, type_token, context);
6637 switch (type_token & 0xff000000){
6638 case MONO_TOKEN_TYPE_DEF:
6639 class = mono_class_create_from_typedef (image, type_token);
6641 case MONO_TOKEN_TYPE_REF:
6642 class = mono_class_from_typeref (image, type_token);
6644 case MONO_TOKEN_TYPE_SPEC:
6645 class = mono_class_create_from_typespec (image, type_token, context, &error);
6646 if (!mono_error_ok (&error)) {
6647 /*FIXME don't swallow the error message*/
6648 mono_error_cleanup (&error);
6652 g_warning ("unknown token type %x", type_token & 0xff000000);
6653 g_assert_not_reached ();
6657 char *name = mono_class_name_from_token (image, type_token);
6658 char *assembly = mono_assembly_name_from_token (image, type_token);
6659 mono_loader_set_error_type_load (name, assembly);
6669 * mono_type_get_full:
6670 * @image: the image where the type resides
6671 * @type_token: the token for the type
6672 * @context: the generic context used to evaluate generic instantiations in
6674 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
6676 * Returns: the MonoType that represents @type_token in @image
6679 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6682 MonoType *type = NULL;
6683 gboolean inflated = FALSE;
6685 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
6687 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
6689 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
6690 MonoClass *class = mono_class_get_full (image, type_token, context);
6691 return class ? mono_class_get_type (class) : NULL;
6694 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated, &error);
6696 if (!mono_error_ok (&error)) {
6697 /*FIXME don't swalloc the error message.*/
6698 char *name = mono_class_name_from_token (image, type_token);
6699 char *assembly = mono_assembly_name_from_token (image, type_token);
6701 g_warning ("Error loading type %s from %s due to %s", name, assembly, mono_error_get_message (&error));
6703 mono_error_cleanup (&error);
6704 mono_loader_set_error_type_load (name, assembly);
6709 MonoType *tmp = type;
6710 type = mono_class_get_type (mono_class_from_mono_type (type));
6711 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
6712 * A MonoClass::byval_arg of a generic type definion has type CLASS.
6713 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
6715 * The long term solution is to chaise this places and make then set MonoType::type correctly.
6717 if (type->type != tmp->type)
6720 mono_metadata_free_type (tmp);
6727 mono_class_get (MonoImage *image, guint32 type_token)
6729 return mono_class_get_full (image, type_token, NULL);
6733 * mono_image_init_name_cache:
6735 * Initializes the class name cache stored in image->name_cache.
6737 * LOCKING: Acquires the corresponding image lock.
6740 mono_image_init_name_cache (MonoImage *image)
6742 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
6743 guint32 cols [MONO_TYPEDEF_SIZE];
6746 guint32 i, visib, nspace_index;
6747 GHashTable *name_cache2, *nspace_table;
6749 mono_image_lock (image);
6751 if (image->name_cache) {
6752 mono_image_unlock (image);
6756 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
6758 if (image->dynamic) {
6759 mono_image_unlock (image);
6763 /* Temporary hash table to avoid lookups in the nspace_table */
6764 name_cache2 = g_hash_table_new (NULL, NULL);
6766 for (i = 1; i <= t->rows; ++i) {
6767 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
6768 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
6770 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6771 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6773 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
6775 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6776 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6778 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
6779 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6780 if (!nspace_table) {
6781 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6782 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6783 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6786 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
6789 /* Load type names from EXPORTEDTYPES table */
6791 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
6792 guint32 cols [MONO_EXP_TYPE_SIZE];
6795 for (i = 0; i < t->rows; ++i) {
6796 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
6797 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
6798 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
6800 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
6801 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6802 if (!nspace_table) {
6803 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6804 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6805 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6808 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
6812 g_hash_table_destroy (name_cache2);
6813 mono_image_unlock (image);
6816 /*FIXME Only dynamic assemblies should allow this operation.*/
6818 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
6819 const char *name, guint32 index)
6821 GHashTable *nspace_table;
6822 GHashTable *name_cache;
6825 mono_image_lock (image);
6827 if (!image->name_cache)
6828 mono_image_init_name_cache (image);
6830 name_cache = image->name_cache;
6831 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
6832 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6833 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
6836 if ((old_index = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, (char*) name))))
6837 g_error ("overrwritting old token %x on image %s for type %s::%s", old_index, image->name, nspace, name);
6839 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
6841 mono_image_unlock (image);
6850 find_nocase (gpointer key, gpointer value, gpointer user_data)
6852 char *name = (char*)key;
6853 FindUserData *data = (FindUserData*)user_data;
6855 if (!data->value && (mono_utf8_strcasecmp (name, (char*)data->key) == 0))
6856 data->value = value;
6860 * mono_class_from_name_case:
6861 * @image: The MonoImage where the type is looked up in
6862 * @name_space: the type namespace
6863 * @name: the type short name.
6865 * Obtains a MonoClass with a given namespace and a given name which
6866 * is located in the given MonoImage. The namespace and name
6867 * lookups are case insensitive.
6870 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
6872 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
6873 guint32 cols [MONO_TYPEDEF_SIZE];
6878 if (image->dynamic) {
6880 FindUserData user_data;
6882 mono_image_lock (image);
6884 if (!image->name_cache)
6885 mono_image_init_name_cache (image);
6887 user_data.key = name_space;
6888 user_data.value = NULL;
6889 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
6891 if (user_data.value) {
6892 GHashTable *nspace_table = (GHashTable*)user_data.value;
6894 user_data.key = name;
6895 user_data.value = NULL;
6897 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
6899 if (user_data.value)
6900 token = GPOINTER_TO_UINT (user_data.value);
6903 mono_image_unlock (image);
6906 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
6912 /* add a cache if needed */
6913 for (i = 1; i <= t->rows; ++i) {
6914 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
6915 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
6917 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6918 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6920 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
6922 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6923 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6924 if (mono_utf8_strcasecmp (n, name) == 0 && mono_utf8_strcasecmp (nspace, name_space) == 0)
6925 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
6931 return_nested_in (MonoClass *class, char *nested)
6934 char *s = strchr (nested, '/');
6935 gpointer iter = NULL;
6942 while ((found = mono_class_get_nested_types (class, &iter))) {
6943 if (strcmp (found->name, nested) == 0) {
6945 return return_nested_in (found, s);
6953 search_modules (MonoImage *image, const char *name_space, const char *name)
6955 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
6956 MonoImage *file_image;
6961 * The EXPORTEDTYPES table only contains public types, so have to search the
6963 * Note: image->modules contains the contents of the MODULEREF table, while
6964 * the real module list is in the FILE table.
6966 for (i = 0; i < file_table->rows; i++) {
6967 guint32 cols [MONO_FILE_SIZE];
6968 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
6969 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
6972 file_image = mono_image_load_file_for_image (image, i + 1);
6974 class = mono_class_from_name (file_image, name_space, name);
6984 * mono_class_from_name:
6985 * @image: The MonoImage where the type is looked up in
6986 * @name_space: the type namespace
6987 * @name: the type short name.
6989 * Obtains a MonoClass with a given namespace and a given name which
6990 * is located in the given MonoImage.
6993 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
6995 GHashTable *nspace_table;
6996 MonoImage *loaded_image;
7003 if ((nested = strchr (name, '/'))) {
7004 int pos = nested - name;
7005 int len = strlen (name);
7008 memcpy (buf, name, len + 1);
7010 nested = buf + pos + 1;
7014 if (get_class_from_name) {
7015 gboolean res = get_class_from_name (image, name_space, name, &class);
7018 class = search_modules (image, name_space, name);
7020 return class ? return_nested_in (class, nested) : NULL;
7026 mono_image_lock (image);
7028 if (!image->name_cache)
7029 mono_image_init_name_cache (image);
7031 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
7034 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
7036 mono_image_unlock (image);
7038 if (!token && image->dynamic && image->modules) {
7039 /* Search modules as well */
7040 for (i = 0; i < image->module_count; ++i) {
7041 MonoImage *module = image->modules [i];
7043 class = mono_class_from_name (module, name_space, name);
7050 class = search_modules (image, name_space, name);
7058 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
7059 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
7060 guint32 cols [MONO_EXP_TYPE_SIZE];
7063 idx = mono_metadata_token_index (token);
7065 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
7067 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
7068 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
7069 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
7072 class = mono_class_from_name (loaded_image, name_space, name);
7074 return return_nested_in (class, nested);
7076 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
7077 guint32 assembly_idx;
7079 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
7081 mono_assembly_load_reference (image, assembly_idx - 1);
7082 g_assert (image->references [assembly_idx - 1]);
7083 if (image->references [assembly_idx - 1] == (gpointer)-1)
7086 /* FIXME: Cycle detection */
7087 return mono_class_from_name (image->references [assembly_idx - 1]->image, name_space, name);
7089 g_error ("not yet implemented");
7093 token = MONO_TOKEN_TYPE_DEF | token;
7095 class = mono_class_get (image, token);
7097 return return_nested_in (class, nested);
7101 /*FIXME test for interfaces with variant generic arguments*/
7103 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
7104 gboolean check_interfaces)
7106 g_assert (klassc->idepth > 0);
7107 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
7108 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
7110 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
7113 for (i = 0; i < klass->interface_count; i ++) {
7114 MonoClass *ic = klass->interfaces [i];
7119 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
7124 * MS.NET thinks interfaces are a subclass of Object, so we think it as
7127 if (klassc == mono_defaults.object_class)
7134 mono_class_has_variant_generic_params (MonoClass *klass)
7137 MonoGenericContainer *container;
7139 if (!klass->generic_class)
7142 container = klass->generic_class->container_class->generic_container;
7144 for (i = 0; i < container->type_argc; ++i)
7145 if (mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
7152 * @container the generic container from the GTD
7153 * @klass: the class to be assigned to
7154 * @oklass: the source class
7156 * Both klass and oklass must be instances of the same generic interface.
7157 * Return true if @klass can be assigned to a @klass variable
7160 mono_class_is_variant_compatible (MonoClass *klass, MonoClass *oklass)
7163 MonoType **klass_argv, **oklass_argv;
7164 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7165 MonoGenericContainer *container = klass_gtd->generic_container;
7167 /*Viable candidates are instances of the same generic interface*/
7168 if (mono_class_get_generic_type_definition (oklass) != klass_gtd)
7171 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7172 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7174 for (j = 0; j < container->type_argc; ++j) {
7175 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7176 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7178 if (param1_class->valuetype != param2_class->valuetype)
7182 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7183 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7185 if (param1_class != param2_class) {
7186 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7187 if (!mono_class_is_assignable_from (param1_class, param2_class))
7189 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7190 if (!mono_class_is_assignable_from (param2_class, param1_class))
7200 * mono_class_is_assignable_from:
7201 * @klass: the class to be assigned to
7202 * @oklass: the source class
7204 * Return: true if an instance of object oklass can be assigned to an
7205 * instance of object @klass
7208 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
7210 /*FIXME this will cause a lot of irrelevant stuff to be loaded.*/
7212 mono_class_init (klass);
7214 if (!oklass->inited)
7215 mono_class_init (oklass);
7217 if (klass->exception_type || oklass->exception_type)
7220 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
7221 return klass == oklass;
7223 if (MONO_CLASS_IS_INTERFACE (klass)) {
7224 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
7227 /* interface_offsets might not be set for dynamic classes */
7228 if (oklass->ref_info_handle && !oklass->interface_bitmap)
7230 * oklass might be a generic type parameter but they have
7231 * interface_offsets set.
7233 return mono_reflection_call_is_assignable_to (oklass, klass);
7234 if (!oklass->interface_bitmap)
7235 /* Happens with generic instances of not-yet created dynamic types */
7237 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
7240 if (mono_class_has_variant_generic_params (klass)) {
7243 mono_class_setup_interfaces (oklass, &error);
7244 if (!mono_error_ok (&error)) {
7245 mono_error_cleanup (&error);
7249 /*klass is a generic variant interface, We need to extract from oklass a list of ifaces which are viable candidates.*/
7250 for (i = 0; i < oklass->interface_offsets_count; ++i) {
7251 MonoClass *iface = oklass->interfaces_packed [i];
7253 if (mono_class_is_variant_compatible (klass, iface))
7258 } else if (klass->delegate) {
7259 if (mono_class_has_variant_generic_params (klass) && mono_class_is_variant_compatible (klass, oklass))
7261 }else if (klass->rank) {
7262 MonoClass *eclass, *eoclass;
7264 if (oklass->rank != klass->rank)
7267 /* vectors vs. one dimensional arrays */
7268 if (oklass->byval_arg.type != klass->byval_arg.type)
7271 eclass = klass->cast_class;
7272 eoclass = oklass->cast_class;
7275 * a is b does not imply a[] is b[] when a is a valuetype, and
7276 * b is a reference type.
7279 if (eoclass->valuetype) {
7280 if ((eclass == mono_defaults.enum_class) ||
7281 (eclass == mono_defaults.enum_class->parent) ||
7282 (eclass == mono_defaults.object_class))
7286 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7287 } else if (mono_class_is_nullable (klass)) {
7288 if (mono_class_is_nullable (oklass))
7289 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7291 return mono_class_is_assignable_from (klass->cast_class, oklass);
7292 } else if (klass == mono_defaults.object_class)
7295 return mono_class_has_parent (oklass, klass);
7298 /*Check if @oklass is variant compatible with @klass.*/
7300 mono_class_is_variant_compatible_slow (MonoClass *klass, MonoClass *oklass)
7303 MonoType **klass_argv, **oklass_argv;
7304 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7305 MonoGenericContainer *container = klass_gtd->generic_container;
7307 /*Viable candidates are instances of the same generic interface*/
7308 if (mono_class_get_generic_type_definition (oklass) != klass_gtd)
7311 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7312 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7314 for (j = 0; j < container->type_argc; ++j) {
7315 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7316 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7318 if (param1_class->valuetype != param2_class->valuetype)
7322 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7323 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7325 if (param1_class != param2_class) {
7326 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7327 if (!mono_class_is_assignable_from_slow (param1_class, param2_class))
7329 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7330 if (!mono_class_is_assignable_from_slow (param2_class, param1_class))
7338 /*Check if @candidate implements the interface @target*/
7340 mono_class_implement_interface_slow (MonoClass *target, MonoClass *candidate)
7344 gboolean is_variant = mono_class_has_variant_generic_params (target);
7346 if (is_variant && MONO_CLASS_IS_INTERFACE (candidate)) {
7347 if (mono_class_is_variant_compatible_slow (target, candidate))
7352 if (candidate == target)
7355 /*A TypeBuilder can have more interfaces on tb->interfaces than on candidate->interfaces*/
7356 if (candidate->image->dynamic && !candidate->wastypebuilder) {
7357 MonoReflectionTypeBuilder *tb = mono_class_get_ref_info (candidate);
7359 if (tb && tb->interfaces) {
7360 for (j = mono_array_length (tb->interfaces) - 1; j >= 0; --j) {
7361 MonoReflectionType *iface = mono_array_get (tb->interfaces, MonoReflectionType*, j);
7362 MonoClass *iface_class = mono_class_from_mono_type (iface->type);
7363 if (iface_class == target)
7365 if (is_variant && mono_class_is_variant_compatible_slow (target, iface_class))
7367 if (mono_class_implement_interface_slow (target, iface_class))
7372 /*setup_interfaces don't mono_class_init anything*/
7373 mono_class_setup_interfaces (candidate, &error);
7374 if (!mono_error_ok (&error)) {
7375 mono_error_cleanup (&error);
7379 for (i = 0; i < candidate->interface_count; ++i) {
7380 if (candidate->interfaces [i] == target)
7383 if (is_variant && mono_class_is_variant_compatible_slow (target, candidate->interfaces [i]))
7386 if (mono_class_implement_interface_slow (target, candidate->interfaces [i]))
7390 candidate = candidate->parent;
7391 } while (candidate);
7397 * Check if @oklass can be assigned to @klass.
7398 * This function does the same as mono_class_is_assignable_from but is safe to be used from mono_class_init context.
7401 mono_class_is_assignable_from_slow (MonoClass *target, MonoClass *candidate)
7403 if (candidate == target)
7405 if (target == mono_defaults.object_class)
7408 /*setup_supertypes don't mono_class_init anything */
7409 mono_class_setup_supertypes (candidate);
7410 mono_class_setup_supertypes (target);
7412 if (mono_class_has_parent (candidate, target))
7415 /*If target is not an interface there is no need to check them.*/
7416 if (MONO_CLASS_IS_INTERFACE (target))
7417 return mono_class_implement_interface_slow (target, candidate);
7419 if (target->delegate && mono_class_has_variant_generic_params (target))
7420 return mono_class_is_variant_compatible (target, candidate);
7422 /*FIXME properly handle nullables and arrays */
7428 * mono_class_get_cctor:
7429 * @klass: A MonoClass pointer
7431 * Returns: the static constructor of @klass if it exists, NULL otherwise.
7434 mono_class_get_cctor (MonoClass *klass)
7436 MonoCachedClassInfo cached_info;
7438 if (klass->image->dynamic) {
7440 * has_cctor is not set for these classes because mono_class_init () is
7443 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7446 if (!klass->has_cctor)
7449 if (mono_class_get_cached_class_info (klass, &cached_info))
7450 return mono_get_method (klass->image, cached_info.cctor_token, klass);
7452 if (klass->generic_class && !klass->methods)
7453 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
7455 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7459 * mono_class_get_finalizer:
7460 * @klass: The MonoClass pointer
7462 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
7465 mono_class_get_finalizer (MonoClass *klass)
7467 MonoCachedClassInfo cached_info;
7470 mono_class_init (klass);
7471 if (!klass->has_finalize)
7474 if (mono_class_get_cached_class_info (klass, &cached_info))
7475 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
7477 mono_class_setup_vtable (klass);
7478 return klass->vtable [finalize_slot];
7483 * mono_class_needs_cctor_run:
7484 * @klass: the MonoClass pointer
7485 * @caller: a MonoMethod describing the caller
7487 * Determines whenever the class has a static constructor and whenever it
7488 * needs to be called when executing CALLER.
7491 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
7495 method = mono_class_get_cctor (klass);
7497 return (method == caller) ? FALSE : TRUE;
7503 * mono_class_array_element_size:
7506 * Returns: the number of bytes an element of type @klass
7507 * uses when stored into an array.
7510 mono_class_array_element_size (MonoClass *klass)
7512 MonoType *type = &klass->byval_arg;
7515 switch (type->type) {
7518 case MONO_TYPE_BOOLEAN:
7522 case MONO_TYPE_CHAR:
7531 case MONO_TYPE_CLASS:
7532 case MONO_TYPE_STRING:
7533 case MONO_TYPE_OBJECT:
7534 case MONO_TYPE_SZARRAY:
7535 case MONO_TYPE_ARRAY:
7537 case MONO_TYPE_MVAR:
7538 return sizeof (gpointer);
7543 case MONO_TYPE_VALUETYPE:
7544 if (type->data.klass->enumtype) {
7545 type = mono_class_enum_basetype (type->data.klass);
7546 klass = klass->element_class;
7549 return mono_class_instance_size (klass) - sizeof (MonoObject);
7550 case MONO_TYPE_GENERICINST:
7551 type = &type->data.generic_class->container_class->byval_arg;
7554 case MONO_TYPE_VOID:
7558 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
7564 * mono_array_element_size:
7565 * @ac: pointer to a #MonoArrayClass
7567 * Returns: the size of single array element.
7570 mono_array_element_size (MonoClass *ac)
7572 g_assert (ac->rank);
7573 return ac->sizes.element_size;
7577 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
7578 MonoGenericContext *context)
7580 if (image->dynamic) {
7581 MonoClass *tmp_handle_class;
7582 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
7584 g_assert (tmp_handle_class);
7586 *handle_class = tmp_handle_class;
7588 if (tmp_handle_class == mono_defaults.typehandle_class)
7589 return &((MonoClass*)obj)->byval_arg;
7594 switch (token & 0xff000000) {
7595 case MONO_TOKEN_TYPE_DEF:
7596 case MONO_TOKEN_TYPE_REF:
7597 case MONO_TOKEN_TYPE_SPEC: {
7600 *handle_class = mono_defaults.typehandle_class;
7601 type = mono_type_get_full (image, token, context);
7604 mono_class_init (mono_class_from_mono_type (type));
7605 /* We return a MonoType* as handle */
7608 case MONO_TOKEN_FIELD_DEF: {
7610 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
7614 *handle_class = mono_defaults.fieldhandle_class;
7615 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
7618 mono_class_init (class);
7619 return mono_class_get_field (class, token);
7621 case MONO_TOKEN_METHOD_DEF:
7622 case MONO_TOKEN_METHOD_SPEC: {
7624 meth = mono_get_method_full (image, token, NULL, context);
7626 *handle_class = mono_defaults.methodhandle_class;
7629 case MONO_TOKEN_MEMBER_REF: {
7630 guint32 cols [MONO_MEMBERREF_SIZE];
7632 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
7633 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
7634 mono_metadata_decode_blob_size (sig, &sig);
7635 if (*sig == 0x6) { /* it's a field */
7637 MonoClassField *field;
7638 field = mono_field_from_token (image, token, &klass, context);
7640 *handle_class = mono_defaults.fieldhandle_class;
7644 meth = mono_get_method_full (image, token, NULL, context);
7646 *handle_class = mono_defaults.methodhandle_class;
7651 g_warning ("Unknown token 0x%08x in ldtoken", token);
7658 * This function might need to call runtime functions so it can't be part
7659 * of the metadata library.
7661 static MonoLookupDynamicToken lookup_dynamic = NULL;
7664 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
7666 lookup_dynamic = func;
7670 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
7672 MonoClass *handle_class;
7674 return lookup_dynamic (image, token, TRUE, &handle_class, context);
7678 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
7680 return lookup_dynamic (image, token, valid_token, handle_class, context);
7683 static MonoGetCachedClassInfo get_cached_class_info = NULL;
7686 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
7688 get_cached_class_info = func;
7692 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
7694 if (!get_cached_class_info)
7697 return get_cached_class_info (klass, res);
7701 mono_install_get_class_from_name (MonoGetClassFromName func)
7703 get_class_from_name = func;
7707 mono_class_get_image (MonoClass *klass)
7709 return klass->image;
7713 * mono_class_get_element_class:
7714 * @klass: the MonoClass to act on
7716 * Returns: the element class of an array or an enumeration.
7719 mono_class_get_element_class (MonoClass *klass)
7721 return klass->element_class;
7725 * mono_class_is_valuetype:
7726 * @klass: the MonoClass to act on
7728 * Returns: true if the MonoClass represents a ValueType.
7731 mono_class_is_valuetype (MonoClass *klass)
7733 return klass->valuetype;
7737 * mono_class_is_enum:
7738 * @klass: the MonoClass to act on
7740 * Returns: true if the MonoClass represents an enumeration.
7743 mono_class_is_enum (MonoClass *klass)
7745 return klass->enumtype;
7749 * mono_class_enum_basetype:
7750 * @klass: the MonoClass to act on
7752 * Returns: the underlying type representation for an enumeration.
7755 mono_class_enum_basetype (MonoClass *klass)
7757 if (klass->element_class == klass)
7758 /* SRE or broken types */
7761 return &klass->element_class->byval_arg;
7765 * mono_class_get_parent
7766 * @klass: the MonoClass to act on
7768 * Returns: the parent class for this class.
7771 mono_class_get_parent (MonoClass *klass)
7773 return klass->parent;
7777 * mono_class_get_nesting_type;
7778 * @klass: the MonoClass to act on
7780 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
7783 mono_class_get_nesting_type (MonoClass *klass)
7785 return klass->nested_in;
7789 * mono_class_get_rank:
7790 * @klass: the MonoClass to act on
7792 * Returns: the rank for the array (the number of dimensions).
7795 mono_class_get_rank (MonoClass *klass)
7801 * mono_class_get_flags:
7802 * @klass: the MonoClass to act on
7804 * The type flags from the TypeDef table from the metadata.
7805 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
7808 * Returns: the flags from the TypeDef table.
7811 mono_class_get_flags (MonoClass *klass)
7813 return klass->flags;
7817 * mono_class_get_name
7818 * @klass: the MonoClass to act on
7820 * Returns: the name of the class.
7823 mono_class_get_name (MonoClass *klass)
7829 * mono_class_get_namespace:
7830 * @klass: the MonoClass to act on
7832 * Returns: the namespace of the class.
7835 mono_class_get_namespace (MonoClass *klass)
7837 return klass->name_space;
7841 * mono_class_get_type:
7842 * @klass: the MonoClass to act on
7844 * This method returns the internal Type representation for the class.
7846 * Returns: the MonoType from the class.
7849 mono_class_get_type (MonoClass *klass)
7851 return &klass->byval_arg;
7855 * mono_class_get_type_token
7856 * @klass: the MonoClass to act on
7858 * This method returns type token for the class.
7860 * Returns: the type token for the class.
7863 mono_class_get_type_token (MonoClass *klass)
7865 return klass->type_token;
7869 * mono_class_get_byref_type:
7870 * @klass: the MonoClass to act on
7875 mono_class_get_byref_type (MonoClass *klass)
7877 return &klass->this_arg;
7881 * mono_class_num_fields:
7882 * @klass: the MonoClass to act on
7884 * Returns: the number of static and instance fields in the class.
7887 mono_class_num_fields (MonoClass *klass)
7889 return klass->field.count;
7893 * mono_class_num_methods:
7894 * @klass: the MonoClass to act on
7896 * Returns: the number of methods in the class.
7899 mono_class_num_methods (MonoClass *klass)
7901 return klass->method.count;
7905 * mono_class_num_properties
7906 * @klass: the MonoClass to act on
7908 * Returns: the number of properties in the class.
7911 mono_class_num_properties (MonoClass *klass)
7913 mono_class_setup_properties (klass);
7915 return klass->ext->property.count;
7919 * mono_class_num_events:
7920 * @klass: the MonoClass to act on
7922 * Returns: the number of events in the class.
7925 mono_class_num_events (MonoClass *klass)
7927 mono_class_setup_events (klass);
7929 return klass->ext->event.count;
7933 * mono_class_get_fields:
7934 * @klass: the MonoClass to act on
7936 * This routine is an iterator routine for retrieving the fields in a class.
7938 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7939 * iterate over all of the elements. When no more values are
7940 * available, the return value is NULL.
7942 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
7945 mono_class_get_fields (MonoClass* klass, gpointer *iter)
7947 MonoClassField* field;
7951 mono_class_setup_fields_locking (klass);
7952 if (klass->exception_type)
7954 /* start from the first */
7955 if (klass->field.count) {
7956 return *iter = &klass->fields [0];
7964 if (field < &klass->fields [klass->field.count]) {
7965 return *iter = field;
7971 * mono_class_get_methods
7972 * @klass: the MonoClass to act on
7974 * This routine is an iterator routine for retrieving the fields in a class.
7976 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7977 * iterate over all of the elements. When no more values are
7978 * available, the return value is NULL.
7980 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
7983 mono_class_get_methods (MonoClass* klass, gpointer *iter)
7985 MonoMethod** method;
7989 mono_class_setup_methods (klass);
7992 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
7993 * FIXME we should better report this error to the caller
7995 if (!klass->methods)
7997 /* start from the first */
7998 if (klass->method.count) {
7999 *iter = &klass->methods [0];
8000 return klass->methods [0];
8008 if (method < &klass->methods [klass->method.count]) {
8016 * mono_class_get_virtual_methods:
8018 * Iterate over the virtual methods of KLASS.
8020 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
8023 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
8025 MonoMethod** method;
8028 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
8030 mono_class_setup_methods (klass);
8032 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8033 * FIXME we should better report this error to the caller
8035 if (!klass->methods)
8037 /* start from the first */
8038 method = &klass->methods [0];
8043 while (method < &klass->methods [klass->method.count]) {
8044 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
8048 if (method < &klass->methods [klass->method.count]) {
8055 /* Search directly in metadata to avoid calling setup_methods () */
8056 MonoMethod *res = NULL;
8062 start_index = GPOINTER_TO_UINT (*iter);
8065 for (i = start_index; i < klass->method.count; ++i) {
8068 /* class->method.first points into the methodptr table */
8069 flags = mono_metadata_decode_table_row_col (klass->image, MONO_TABLE_METHOD, klass->method.first + i, MONO_METHOD_FLAGS);
8071 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
8075 if (i < klass->method.count) {
8076 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
8077 /* Add 1 here so the if (*iter) check fails */
8078 *iter = GUINT_TO_POINTER (i + 1);
8087 * mono_class_get_properties:
8088 * @klass: the MonoClass to act on
8090 * This routine is an iterator routine for retrieving the properties in a class.
8092 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8093 * iterate over all of the elements. When no more values are
8094 * available, the return value is NULL.
8096 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
8099 mono_class_get_properties (MonoClass* klass, gpointer *iter)
8101 MonoProperty* property;
8105 mono_class_setup_properties (klass);
8106 /* start from the first */
8107 if (klass->ext->property.count) {
8108 return *iter = &klass->ext->properties [0];
8116 if (property < &klass->ext->properties [klass->ext->property.count]) {
8117 return *iter = property;
8123 * mono_class_get_events:
8124 * @klass: the MonoClass to act on
8126 * This routine is an iterator routine for retrieving the properties in a class.
8128 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8129 * iterate over all of the elements. When no more values are
8130 * available, the return value is NULL.
8132 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
8135 mono_class_get_events (MonoClass* klass, gpointer *iter)
8141 mono_class_setup_events (klass);
8142 /* start from the first */
8143 if (klass->ext->event.count) {
8144 return *iter = &klass->ext->events [0];
8152 if (event < &klass->ext->events [klass->ext->event.count]) {
8153 return *iter = event;
8159 * mono_class_get_interfaces
8160 * @klass: the MonoClass to act on
8162 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
8164 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8165 * iterate over all of the elements. When no more values are
8166 * available, the return value is NULL.
8168 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
8171 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
8179 mono_class_init (klass);
8180 if (!klass->interfaces_inited) {
8181 mono_class_setup_interfaces (klass, &error);
8182 if (!mono_error_ok (&error)) {
8183 mono_error_cleanup (&error);
8187 /* start from the first */
8188 if (klass->interface_count) {
8189 *iter = &klass->interfaces [0];
8190 return klass->interfaces [0];
8198 if (iface < &klass->interfaces [klass->interface_count]) {
8206 * mono_class_get_nested_types
8207 * @klass: the MonoClass to act on
8209 * This routine is an iterator routine for retrieving the nested types of a class.
8210 * This works only if @klass is non-generic, or a generic type definition.
8212 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8213 * iterate over all of the elements. When no more values are
8214 * available, the return value is NULL.
8216 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
8219 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
8226 if (!klass->nested_classes_inited) {
8227 if (!klass->type_token)
8228 klass->nested_classes_inited = TRUE;
8229 mono_loader_lock ();
8230 if (!klass->nested_classes_inited) {
8231 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
8234 guint32 cols [MONO_NESTED_CLASS_SIZE];
8235 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
8236 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
8238 mono_loader_clear_error ();
8239 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8242 mono_class_alloc_ext (klass);
8243 klass->ext->nested_classes = g_list_prepend_image (klass->image, klass->ext->nested_classes, nclass);
8245 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8248 mono_memory_barrier ();
8249 klass->nested_classes_inited = TRUE;
8250 mono_loader_unlock ();
8254 /* start from the first */
8255 if (klass->ext && klass->ext->nested_classes) {
8256 *iter = klass->ext->nested_classes;
8257 return klass->ext->nested_classes->data;
8259 /* no nested types */
8273 * mono_field_get_name:
8274 * @field: the MonoClassField to act on
8276 * Returns: the name of the field.
8279 mono_field_get_name (MonoClassField *field)
8285 * mono_field_get_type:
8286 * @field: the MonoClassField to act on
8288 * Returns: MonoType of the field.
8291 mono_field_get_type (MonoClassField *field)
8294 MonoType *type = mono_field_get_type_checked (field, &error);
8295 if (!mono_error_ok (&error)) {
8296 mono_trace_warning (MONO_TRACE_TYPE, "Could not load field's type due to %s", mono_error_get_message (&error));
8297 mono_error_cleanup (&error);
8304 * mono_field_get_type_checked:
8305 * @field: the MonoClassField to act on
8306 * @error: used to return any erro found while retrieving @field type
8308 * Returns: MonoType of the field.
8311 mono_field_get_type_checked (MonoClassField *field, MonoError *error)
8313 mono_error_init (error);
8315 mono_field_resolve_type (field, error);
8320 * mono_field_get_parent:
8321 * @field: the MonoClassField to act on
8323 * Returns: MonoClass where the field was defined.
8326 mono_field_get_parent (MonoClassField *field)
8328 return field->parent;
8332 * mono_field_get_flags;
8333 * @field: the MonoClassField to act on
8335 * The metadata flags for a field are encoded using the
8336 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8338 * Returns: the flags for the field.
8341 mono_field_get_flags (MonoClassField *field)
8344 return mono_field_resolve_flags (field);
8345 return field->type->attrs;
8349 * mono_field_get_offset;
8350 * @field: the MonoClassField to act on
8352 * Returns: the field offset.
8355 mono_field_get_offset (MonoClassField *field)
8357 return field->offset;
8361 mono_field_get_rva (MonoClassField *field)
8365 MonoClass *klass = field->parent;
8367 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
8369 if (!klass->ext || !klass->ext->field_def_values) {
8370 mono_loader_lock ();
8371 mono_class_alloc_ext (klass);
8372 if (!klass->ext->field_def_values)
8373 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
8374 mono_loader_unlock ();
8377 field_index = mono_field_get_index (field);
8379 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
8380 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
8382 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
8383 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
8386 return klass->ext->field_def_values [field_index].data;
8390 * mono_field_get_data;
8391 * @field: the MonoClassField to act on
8393 * Returns: pointer to the metadata constant value or to the field
8394 * data if it has an RVA flag.
8397 mono_field_get_data (MonoClassField *field)
8399 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
8400 MonoTypeEnum def_type;
8402 return mono_class_get_field_default_value (field, &def_type);
8403 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
8404 return mono_field_get_rva (field);
8411 * mono_property_get_name:
8412 * @prop: the MonoProperty to act on
8414 * Returns: the name of the property
8417 mono_property_get_name (MonoProperty *prop)
8423 * mono_property_get_set_method
8424 * @prop: the MonoProperty to act on.
8426 * Returns: the setter method of the property (A MonoMethod)
8429 mono_property_get_set_method (MonoProperty *prop)
8435 * mono_property_get_get_method
8436 * @prop: the MonoProperty to act on.
8438 * Returns: the setter method of the property (A MonoMethod)
8441 mono_property_get_get_method (MonoProperty *prop)
8447 * mono_property_get_parent:
8448 * @prop: the MonoProperty to act on.
8450 * Returns: the MonoClass where the property was defined.
8453 mono_property_get_parent (MonoProperty *prop)
8455 return prop->parent;
8459 * mono_property_get_flags:
8460 * @prop: the MonoProperty to act on.
8462 * The metadata flags for a property are encoded using the
8463 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8465 * Returns: the flags for the property.
8468 mono_property_get_flags (MonoProperty *prop)
8474 * mono_event_get_name:
8475 * @event: the MonoEvent to act on
8477 * Returns: the name of the event.
8480 mono_event_get_name (MonoEvent *event)
8486 * mono_event_get_add_method:
8487 * @event: The MonoEvent to act on.
8489 * Returns: the @add' method for the event (a MonoMethod).
8492 mono_event_get_add_method (MonoEvent *event)
8498 * mono_event_get_remove_method:
8499 * @event: The MonoEvent to act on.
8501 * Returns: the @remove method for the event (a MonoMethod).
8504 mono_event_get_remove_method (MonoEvent *event)
8506 return event->remove;
8510 * mono_event_get_raise_method:
8511 * @event: The MonoEvent to act on.
8513 * Returns: the @raise method for the event (a MonoMethod).
8516 mono_event_get_raise_method (MonoEvent *event)
8518 return event->raise;
8522 * mono_event_get_parent:
8523 * @event: the MonoEvent to act on.
8525 * Returns: the MonoClass where the event is defined.
8528 mono_event_get_parent (MonoEvent *event)
8530 return event->parent;
8534 * mono_event_get_flags
8535 * @event: the MonoEvent to act on.
8537 * The metadata flags for an event are encoded using the
8538 * EVENT_* constants. See the tabledefs.h file for details.
8540 * Returns: the flags for the event.
8543 mono_event_get_flags (MonoEvent *event)
8545 return event->attrs;
8549 * mono_class_get_method_from_name:
8550 * @klass: where to look for the method
8551 * @name_space: name of the method
8552 * @param_count: number of parameters. -1 for any number.
8554 * Obtains a MonoMethod with a given name and number of parameters.
8555 * It only works if there are no multiple signatures for any given method name.
8558 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
8560 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
8564 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
8566 MonoMethod *res = NULL;
8569 /* Search directly in the metadata to avoid calling setup_methods () */
8570 for (i = 0; i < klass->method.count; ++i) {
8571 guint32 cols [MONO_METHOD_SIZE];
8574 /* class->method.first points into the methodptr table */
8575 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
8577 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
8578 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
8579 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
8590 * mono_class_get_method_from_name_flags:
8591 * @klass: where to look for the method
8592 * @name_space: name of the method
8593 * @param_count: number of parameters. -1 for any number.
8594 * @flags: flags which must be set in the method
8596 * Obtains a MonoMethod with a given name and number of parameters.
8597 * It only works if there are no multiple signatures for any given method name.
8600 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
8602 MonoMethod *res = NULL;
8605 mono_class_init (klass);
8607 if (klass->generic_class && !klass->methods) {
8608 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
8610 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
8614 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
8615 mono_class_setup_methods (klass);
8617 We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8618 See mono/tests/array_load_exception.il
8619 FIXME we should better report this error to the caller
8621 if (!klass->methods)
8623 for (i = 0; i < klass->method.count; ++i) {
8624 MonoMethod *method = klass->methods [i];
8626 if (method->name[0] == name [0] &&
8627 !strcmp (name, method->name) &&
8628 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
8629 ((method->flags & flags) == flags)) {
8636 res = find_method_in_metadata (klass, name, param_count, flags);
8643 * mono_class_set_failure:
8644 * @klass: class in which the failure was detected
8645 * @ex_type: the kind of exception/error to be thrown (later)
8646 * @ex_data: exception data (specific to each type of exception/error)
8648 * Keep a detected failure informations in the class for later processing.
8649 * Note that only the first failure is kept.
8651 * LOCKING: Acquires the loader lock.
8654 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
8656 if (klass->exception_type)
8659 mono_loader_lock ();
8660 klass->exception_type = ex_type;
8662 mono_image_property_insert (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
8663 mono_loader_unlock ();
8669 * mono_class_get_exception_data:
8671 * Return the exception_data property of KLASS.
8673 * LOCKING: Acquires the loader lock.
8676 mono_class_get_exception_data (MonoClass *klass)
8678 return mono_image_property_lookup (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
8682 * mono_classes_init:
8684 * Initialize the resources used by this module.
8687 mono_classes_init (void)
8689 mono_counters_register ("Inflated methods size",
8690 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
8691 mono_counters_register ("Inflated classes",
8692 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
8693 mono_counters_register ("Inflated classes size",
8694 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
8695 mono_counters_register ("MonoClass size",
8696 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
8697 mono_counters_register ("MonoClassExt size",
8698 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
8702 * mono_classes_cleanup:
8704 * Free the resources used by this module.
8707 mono_classes_cleanup (void)
8709 if (global_interface_bitset)
8710 mono_bitset_free (global_interface_bitset);
8714 * mono_class_get_exception_for_failure:
8715 * @klass: class in which the failure was detected
8717 * Return a constructed MonoException than the caller can then throw
8718 * using mono_raise_exception - or NULL if no failure is present (or
8719 * doesn't result in an exception).
8722 mono_class_get_exception_for_failure (MonoClass *klass)
8724 gpointer exception_data = mono_class_get_exception_data (klass);
8726 switch (klass->exception_type) {
8727 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
8728 MonoDomain *domain = mono_domain_get ();
8729 MonoSecurityManager* secman = mono_security_manager_get_methods ();
8730 MonoMethod *method = exception_data;
8731 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
8732 MonoObject *exc = NULL;
8736 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
8737 args [2] = mono_type_get_object (domain, &klass->byval_arg);
8738 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
8740 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
8741 return (MonoException*) exc;
8743 case MONO_EXCEPTION_TYPE_LOAD: {
8746 char *str = mono_type_get_full_name (klass);
8747 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
8748 name = mono_string_new (mono_domain_get (), str);
8750 ex = mono_get_exception_type_load (name, astr);
8754 case MONO_EXCEPTION_MISSING_METHOD: {
8755 char *class_name = exception_data;
8756 char *assembly_name = class_name + strlen (class_name) + 1;
8758 return mono_get_exception_missing_method (class_name, assembly_name);
8760 case MONO_EXCEPTION_MISSING_FIELD: {
8761 char *class_name = exception_data;
8762 char *member_name = class_name + strlen (class_name) + 1;
8764 return mono_get_exception_missing_field (class_name, member_name);
8766 case MONO_EXCEPTION_FILE_NOT_FOUND: {
8767 char *msg_format = exception_data;
8768 char *assembly_name = msg_format + strlen (msg_format) + 1;
8769 char *msg = g_strdup_printf (msg_format, assembly_name);
8772 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
8778 case MONO_EXCEPTION_BAD_IMAGE: {
8779 return mono_get_exception_bad_image_format (exception_data);
8782 MonoLoaderError *error;
8785 error = mono_loader_get_last_error ();
8787 ex = mono_loader_error_prepare_exception (error);
8791 /* TODO - handle other class related failures */
8798 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
8800 outer_klass = mono_class_get_generic_type_definition (outer_klass);
8801 inner_klass = mono_class_get_generic_type_definition (inner_klass);
8803 if (outer_klass == inner_klass)
8805 inner_klass = inner_klass->nested_in;
8806 } while (inner_klass);
8811 mono_class_get_generic_type_definition (MonoClass *klass)
8813 return klass->generic_class ? klass->generic_class->container_class : klass;
8817 * Check if @klass is a subtype of @parent ignoring generic instantiations.
8819 * Generic instantiations are ignored for all super types of @klass.
8821 * Visibility checks ignoring generic instantiations.
8824 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
8827 klass = mono_class_get_generic_type_definition (klass);
8828 parent = mono_class_get_generic_type_definition (parent);
8830 for (i = 0; i < klass->idepth; ++i) {
8831 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
8837 * Subtype can only access parent members with family protection if the site object
8838 * is subclass of Subtype. For example:
8839 * class A { protected int x; }
8841 * void valid_access () {
8845 * void invalid_access () {
8852 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
8854 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
8857 if (context_klass == NULL)
8859 /*if access_klass is not member_klass context_klass must be type compat*/
8860 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
8866 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
8869 if (accessing == accessed)
8871 if (!accessed || !accessing)
8874 /* extra safety under CoreCLR - the runtime does not verify the strongname signatures
8875 * anywhere so untrusted friends are not safe to access platform's code internals */
8876 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR) {
8877 if (!mono_security_core_clr_can_access_internals (accessing->image, accessed->image))
8881 mono_assembly_load_friends (accessed);
8882 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
8883 MonoAssemblyName *friend = tmp->data;
8884 /* Be conservative with checks */
8887 if (strcmp (accessing->aname.name, friend->name))
8889 if (friend->public_key_token [0]) {
8890 if (!accessing->aname.public_key_token [0])
8892 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
8901 * If klass is a generic type or if it is derived from a generic type, return the
8902 * MonoClass of the generic definition
8903 * Returns NULL if not found
8906 get_generic_definition_class (MonoClass *klass)
8909 if (klass->generic_class && klass->generic_class->container_class)
8910 return klass->generic_class->container_class;
8911 klass = klass->parent;
8917 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
8920 for (i = 0; i < ginst->type_argc; ++i) {
8921 MonoType *type = ginst->type_argv[i];
8922 switch (type->type) {
8923 case MONO_TYPE_SZARRAY:
8924 if (!can_access_type (access_klass, type->data.klass))
8927 case MONO_TYPE_ARRAY:
8928 if (!can_access_type (access_klass, type->data.array->eklass))
8932 if (!can_access_type (access_klass, mono_class_from_mono_type (type->data.type)))
8935 case MONO_TYPE_CLASS:
8936 case MONO_TYPE_VALUETYPE:
8937 case MONO_TYPE_GENERICINST:
8938 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
8946 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
8950 if (access_klass->element_class && !access_klass->enumtype)
8951 access_klass = access_klass->element_class;
8953 if (member_klass->element_class && !member_klass->enumtype)
8954 member_klass = member_klass->element_class;
8956 access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
8958 if (member_klass->byval_arg.type == MONO_TYPE_VAR || member_klass->byval_arg.type == MONO_TYPE_MVAR)
8961 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
8964 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
8967 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
8970 /*Non nested type with nested visibility. We just fail it.*/
8971 if (access_level >= TYPE_ATTRIBUTE_NESTED_PRIVATE && access_level <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM && member_klass->nested_in == NULL)
8974 switch (access_level) {
8975 case TYPE_ATTRIBUTE_NOT_PUBLIC:
8976 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8978 case TYPE_ATTRIBUTE_PUBLIC:
8981 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
8984 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
8985 return is_nesting_type (member_klass, access_klass);
8987 case TYPE_ATTRIBUTE_NESTED_FAMILY:
8988 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
8990 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
8991 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8993 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
8994 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
8995 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
8997 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
8998 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
8999 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
9004 /* FIXME: check visibility of type, too */
9006 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
9008 MonoClass *member_generic_def;
9009 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
9010 access_klass->generic_container) &&
9011 (member_generic_def = get_generic_definition_class (member_klass))) {
9012 MonoClass *access_container;
9014 if (access_klass->generic_container)
9015 access_container = access_klass;
9017 access_container = access_klass->generic_class->container_class;
9019 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
9023 /* Partition I 8.5.3.2 */
9024 /* the access level values are the same for fields and methods */
9025 switch (access_level) {
9026 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
9027 /* same compilation unit */
9028 return access_klass->image == member_klass->image;
9029 case FIELD_ATTRIBUTE_PRIVATE:
9030 return access_klass == member_klass;
9031 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
9032 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
9033 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
9036 case FIELD_ATTRIBUTE_ASSEMBLY:
9037 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9038 case FIELD_ATTRIBUTE_FAMILY:
9039 if (is_valid_family_access (access_klass, member_klass, context_klass))
9042 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
9043 if (is_valid_family_access (access_klass, member_klass, context_klass))
9045 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9046 case FIELD_ATTRIBUTE_PUBLIC:
9053 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
9055 /* FIXME: check all overlapping fields */
9056 int can = can_access_member (method->klass, field->parent, NULL, mono_field_get_type (field)->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9058 MonoClass *nested = method->klass->nested_in;
9060 can = can_access_member (nested, field->parent, NULL, mono_field_get_type (field)->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9063 nested = nested->nested_in;
9070 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
9072 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9074 MonoClass *nested = method->klass->nested_in;
9076 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9079 nested = nested->nested_in;
9084 * with generics calls to explicit interface implementations can be expressed
9085 * directly: the method is private, but we must allow it. This may be opening
9086 * a hole or the generics code should handle this differently.
9087 * Maybe just ensure the interface type is public.
9089 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
9095 * mono_method_can_access_method_full:
9096 * @method: The caller method
9097 * @called: The called method
9098 * @context_klass: The static type on stack of the owner @called object used
9100 * This function must be used with instance calls, as they have more strict family accessibility.
9101 * It can be used with static methods, but context_klass should be NULL.
9103 * Returns: TRUE if caller have proper visibility and acessibility to @called
9106 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
9108 MonoClass *access_class = method->klass;
9109 MonoClass *member_class = called->klass;
9110 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9112 MonoClass *nested = access_class->nested_in;
9114 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9117 nested = nested->nested_in;
9124 can = can_access_type (access_class, member_class);
9126 MonoClass *nested = access_class->nested_in;
9128 can = can_access_type (nested, member_class);
9131 nested = nested->nested_in;
9138 if (called->is_inflated) {
9139 MonoMethodInflated * infl = (MonoMethodInflated*)called;
9140 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
9149 * mono_method_can_access_field_full:
9150 * @method: The caller method
9151 * @field: The accessed field
9152 * @context_klass: The static type on stack of the owner @field object used
9154 * This function must be used with instance fields, as they have more strict family accessibility.
9155 * It can be used with static fields, but context_klass should be NULL.
9157 * Returns: TRUE if caller have proper visibility and acessibility to @field
9160 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
9162 MonoClass *access_class = method->klass;
9163 MonoClass *member_class = field->parent;
9164 /* FIXME: check all overlapping fields */
9165 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9167 MonoClass *nested = access_class->nested_in;
9169 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9172 nested = nested->nested_in;
9179 can = can_access_type (access_class, member_class);
9181 MonoClass *nested = access_class->nested_in;
9183 can = can_access_type (nested, member_class);
9186 nested = nested->nested_in;
9196 * mono_type_is_valid_enum_basetype:
9197 * @type: The MonoType to check
9199 * Returns: TRUE if the type can be used as the basetype of an enum
9201 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
9202 switch (type->type) {
9205 case MONO_TYPE_BOOLEAN:
9208 case MONO_TYPE_CHAR:
9221 * mono_class_is_valid_enum:
9222 * @klass: An enum class to be validated
9224 * This method verify the required properties an enum should have.
9226 * Returns: TRUE if the informed enum class is valid
9228 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
9229 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
9230 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
9232 gboolean mono_class_is_valid_enum (MonoClass *klass) {
9233 MonoClassField * field;
9234 gpointer iter = NULL;
9235 gboolean found_base_field = FALSE;
9237 g_assert (klass->enumtype);
9238 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
9239 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
9243 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
9246 while ((field = mono_class_get_fields (klass, &iter))) {
9247 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
9248 if (found_base_field)
9250 found_base_field = TRUE;
9251 if (!mono_type_is_valid_enum_basetype (field->type))
9256 if (!found_base_field)
9259 if (klass->method.count > 0)
9266 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
9268 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
9272 * mono_class_setup_interface_id:
9274 * Initializes MonoClass::interface_id if required.
9276 * LOCKING: Acquires the loader lock.
9279 mono_class_setup_interface_id (MonoClass *class)
9281 mono_loader_lock ();
9282 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
9283 class->interface_id = mono_get_unique_iid (class);
9284 mono_loader_unlock ();
9288 * mono_class_alloc_ext:
9290 * Allocate klass->ext if not already done.
9291 * LOCKING: Assumes the loader lock is held.
9294 mono_class_alloc_ext (MonoClass *klass)
9297 klass->ext = mono_class_alloc0 (klass, sizeof (MonoClassExt));
9298 class_ext_size += sizeof (MonoClassExt);
9303 * mono_class_setup_interfaces:
9305 * Initialize class->interfaces/interfaces_count.
9306 * LOCKING: Acquires the loader lock.
9307 * This function can fail the type.
9310 mono_class_setup_interfaces (MonoClass *klass, MonoError *error)
9314 mono_error_init (error);
9316 if (klass->interfaces_inited)
9319 mono_loader_lock ();
9321 if (klass->interfaces_inited) {
9322 mono_loader_unlock ();
9326 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
9329 /* generic IList, ICollection, IEnumerable */
9330 klass->interface_count = 1;
9331 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
9333 args [0] = &klass->element_class->byval_arg;
9334 klass->interfaces [0] = mono_class_bind_generic_parameters (
9335 mono_defaults.generic_ilist_class, 1, args, FALSE);
9336 } else if (klass->generic_class) {
9337 MonoClass *gklass = klass->generic_class->container_class;
9339 klass->interface_count = gklass->interface_count;
9340 klass->interfaces = mono_class_new0 (klass, MonoClass *, klass->interface_count);
9341 for (i = 0; i < klass->interface_count; i++) {
9342 klass->interfaces [i] = mono_class_inflate_generic_class_checked (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class), error);
9343 if (!mono_error_ok (error)) {
9344 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not setup the interfaces"));
9345 g_free (klass->interfaces);
9346 klass->interfaces = NULL;
9352 mono_memory_barrier ();
9354 klass->interfaces_inited = TRUE;
9356 mono_loader_unlock ();
9360 mono_field_resolve_type (MonoClassField *field, MonoError *error)
9362 MonoClass *class = field->parent;
9363 MonoImage *image = class->image;
9364 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
9365 int field_idx = field - class->fields;
9367 mono_error_init (error);
9370 MonoClassField *gfield = >d->fields [field_idx];
9371 MonoType *gtype = mono_field_get_type_checked (gfield, error);
9372 if (!mono_error_ok (error)) {
9373 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", field_idx, mono_error_get_message (error));
9374 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
9378 field->type = mono_class_inflate_generic_type_no_copy (image, gtype, mono_class_get_context (class), error);
9379 if (!mono_error_ok (error)) {
9380 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", field_idx, mono_error_get_message (error));
9381 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
9386 guint32 cols [MONO_FIELD_SIZE];
9387 MonoGenericContainer *container = NULL;
9388 int idx = class->field.first + field_idx;
9390 /*FIXME, in theory we do not lazy load SRE fields*/
9391 g_assert (!image->dynamic);
9393 if (class->generic_container) {
9394 container = class->generic_container;
9396 container = gtd->generic_container;
9397 g_assert (container);
9400 /* class->field.first and idx points into the fieldptr table */
9401 mono_metadata_decode_table_row (image, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
9403 if (!mono_verifier_verify_field_signature (image, cols [MONO_FIELD_SIGNATURE], NULL)) {
9404 mono_error_set_type_load_class (error, class, "Could not verify field %s signature", field->name);
9405 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
9409 sig = mono_metadata_blob_heap (image, cols [MONO_FIELD_SIGNATURE]);
9411 mono_metadata_decode_value (sig, &sig);
9412 /* FIELD signature == 0x06 */
9413 g_assert (*sig == 0x06);
9414 field->type = mono_metadata_parse_type_full (image, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
9416 mono_error_set_type_load_class (error, class, "Could not load field %s type", field->name);
9417 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
9418 mono_loader_clear_error ();
9424 mono_field_resolve_flags (MonoClassField *field)
9426 MonoClass *class = field->parent;
9427 MonoImage *image = class->image;
9428 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
9429 int field_idx = field - class->fields;
9433 MonoClassField *gfield = >d->fields [field_idx];
9434 return mono_field_get_flags (gfield);
9436 int idx = class->field.first + field_idx;
9438 /*FIXME, in theory we do not lazy load SRE fields*/
9439 g_assert (!image->dynamic);
9441 return mono_metadata_decode_table_row_col (image, MONO_TABLE_FIELD, idx, MONO_FIELD_FLAGS);
9446 * mono_class_setup_basic_field_info:
9447 * @class: The class to initialize
9449 * Initializes the class->fields array of fields.
9450 * Aquires the loader lock.
9453 mono_class_setup_basic_field_info_locking (MonoClass *class)
9455 mono_loader_lock ();
9456 mono_class_setup_basic_field_info (class);
9457 mono_loader_unlock ();
9461 * mono_class_get_fields_lazy:
9462 * @klass: the MonoClass to act on
9464 * This routine is an iterator routine for retrieving the fields in a class.
9465 * Only minimal information about fields are loaded. Accessors must be used
9466 * for all MonoClassField returned.
9468 * You must pass a gpointer that points to zero and is treated as an opaque handle to
9469 * iterate over all of the elements. When no more values are
9470 * available, the return value is NULL.
9472 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
9475 mono_class_get_fields_lazy (MonoClass* klass, gpointer *iter)
9477 MonoClassField* field;
9481 mono_class_setup_basic_field_info_locking (klass);
9484 /* start from the first */
9485 if (klass->field.count) {
9486 return *iter = &klass->fields [0];
9494 if (field < &klass->fields [klass->field.count]) {
9495 return *iter = field;