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 mono_image_set_alloc (class->generic_class->owner, 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;
1549 * mono_type_get_basic_type_from_generic:
1552 * Returns a closed type corresponding to the possibly open type
1556 mono_type_get_basic_type_from_generic (MonoType *type)
1558 /* When we do generic sharing we let type variables stand for reference types. */
1559 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1560 return &mono_defaults.object_class->byval_arg;
1565 * mono_class_layout_fields:
1568 * Compute the placement of fields inside an object or struct, according to
1569 * the layout rules and set the following fields in @class:
1570 * - has_references (if the class contains instance references firled or structs that contain references)
1571 * - has_static_refs (same, but for static fields)
1572 * - instance_size (size of the object in memory)
1573 * - class_size (size needed for the static fields)
1574 * - size_inited (flag set when the instance_size is set)
1576 * LOCKING: this is supposed to be called with the loader lock held.
1579 mono_class_layout_fields (MonoClass *class)
1582 const int top = class->field.count;
1583 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1584 guint32 pass, passes, real_size;
1585 gboolean gc_aware_layout = FALSE;
1586 MonoClassField *field;
1589 * When we do generic sharing we need to have layout
1590 * information for open generic classes (either with a generic
1591 * context containing type variables or with a generic
1592 * container), so we don't return in that case anymore.
1596 * Enable GC aware auto layout: in this mode, reference
1597 * fields are grouped together inside objects, increasing collector
1599 * Requires that all classes whose layout is known to native code be annotated
1600 * with [StructLayout (LayoutKind.Sequential)]
1601 * Value types have gc_aware_layout disabled by default, as per
1602 * what the default is for other runtimes.
1604 /* corlib is missing [StructLayout] directives in many places */
1605 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1606 if (class->image != mono_defaults.corlib &&
1607 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1608 gc_aware_layout = TRUE;
1609 /* from System.dll, used in metadata/process.h */
1610 if (strcmp (class->name, "ProcessStartInfo") == 0)
1611 gc_aware_layout = FALSE;
1614 /* Compute klass->has_references */
1616 * Process non-static fields first, since static fields might recursively
1617 * refer to the class itself.
1619 for (i = 0; i < top; i++) {
1622 field = &class->fields [i];
1624 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1625 ftype = mono_type_get_underlying_type (field->type);
1626 ftype = mono_type_get_basic_type_from_generic (ftype);
1627 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1628 class->has_references = TRUE;
1632 for (i = 0; i < top; i++) {
1635 field = &class->fields [i];
1637 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1638 ftype = mono_type_get_underlying_type (field->type);
1639 ftype = mono_type_get_basic_type_from_generic (ftype);
1640 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1641 class->has_static_refs = TRUE;
1645 for (i = 0; i < top; i++) {
1648 field = &class->fields [i];
1650 ftype = mono_type_get_underlying_type (field->type);
1651 ftype = mono_type_get_basic_type_from_generic (ftype);
1652 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1653 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1654 class->has_static_refs = TRUE;
1656 class->has_references = TRUE;
1661 * Compute field layout and total size (not considering static fields)
1665 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1666 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1668 if (gc_aware_layout)
1673 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1677 real_size = class->parent->instance_size;
1679 real_size = sizeof (MonoObject);
1681 for (pass = 0; pass < passes; ++pass) {
1682 for (i = 0; i < top; i++){
1687 field = &class->fields [i];
1689 if (mono_field_is_deleted (field))
1691 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1694 ftype = mono_type_get_underlying_type (field->type);
1695 ftype = mono_type_get_basic_type_from_generic (ftype);
1696 if (gc_aware_layout) {
1697 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1706 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1707 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1708 /* This field is a hack inserted by MCS to empty structures */
1712 size = mono_type_size (field->type, &align);
1714 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1715 align = class->packing_size ? MIN (class->packing_size, align): align;
1716 /* if the field has managed references, we need to force-align it
1719 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1720 align = MAX (align, sizeof (gpointer));
1722 class->min_align = MAX (align, class->min_align);
1723 field->offset = real_size;
1725 field->offset += align - 1;
1726 field->offset &= ~(align - 1);
1728 /*TypeBuilders produce all sort of weird things*/
1729 g_assert (class->image->dynamic || field->offset > 0);
1730 real_size = field->offset + size;
1733 class->instance_size = MAX (real_size, class->instance_size);
1735 if (class->instance_size & (class->min_align - 1)) {
1736 class->instance_size += class->min_align - 1;
1737 class->instance_size &= ~(class->min_align - 1);
1741 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1743 for (i = 0; i < top; i++) {
1748 field = &class->fields [i];
1751 * There must be info about all the fields in a type if it
1752 * uses explicit layout.
1755 if (mono_field_is_deleted (field))
1757 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1760 size = mono_type_size (field->type, &align);
1761 class->min_align = MAX (align, class->min_align);
1764 * When we get here, field->offset is already set by the
1765 * loader (for either runtime fields or fields loaded from metadata).
1766 * The offset is from the start of the object: this works for both
1767 * classes and valuetypes.
1769 field->offset += sizeof (MonoObject);
1770 ftype = mono_type_get_underlying_type (field->type);
1771 ftype = mono_type_get_basic_type_from_generic (ftype);
1772 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1773 if (field->offset % sizeof (gpointer)) {
1774 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1781 real_size = MAX (real_size, size + field->offset);
1783 class->instance_size = MAX (real_size, class->instance_size);
1787 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1789 * For small structs, set min_align to at least the struct size to improve
1790 * performance, and since the JIT memset/memcpy code assumes this and generates
1791 * unaligned accesses otherwise. See #78990 for a testcase.
1793 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1794 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1797 class->size_inited = 1;
1800 * Compute static field layout and size
1802 for (i = 0; i < top; i++){
1806 field = &class->fields [i];
1808 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1810 if (mono_field_is_deleted (field))
1813 if (mono_type_has_exceptions (field->type)) {
1814 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1818 size = mono_type_size (field->type, &align);
1819 field->offset = class->sizes.class_size;
1820 /*align is always non-zero here*/
1821 field->offset += align - 1;
1822 field->offset &= ~(align - 1);
1823 class->sizes.class_size = field->offset + size;
1828 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1832 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1833 method->klass = class;
1834 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1835 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1836 method->signature = sig;
1837 method->name = name;
1840 if (name [0] == '.') {
1841 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1843 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1849 * mono_class_setup_methods:
1852 * Initializes the 'methods' array in the klass.
1853 * Calling this method should be avoided if possible since it allocates a lot
1854 * of long-living MonoMethod structures.
1855 * Methods belonging to an interface are assigned a sequential slot starting
1858 * On failure this function sets class->exception_type
1861 mono_class_setup_methods (MonoClass *class)
1864 MonoMethod **methods;
1869 mono_loader_lock ();
1871 if (class->methods) {
1872 mono_loader_unlock ();
1876 if (class->generic_class) {
1878 MonoClass *gklass = class->generic_class->container_class;
1880 mono_class_init (gklass);
1881 if (!gklass->exception_type)
1882 mono_class_setup_methods (gklass);
1883 if (gklass->exception_type) {
1884 /*FIXME make exception_data less opaque so it's possible to dup it here*/
1885 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
1886 mono_loader_unlock ();
1890 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1891 class->method.count = gklass->method.count;
1892 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * (class->method.count + 1));
1894 for (i = 0; i < class->method.count; i++) {
1895 methods [i] = mono_class_inflate_generic_method_full_checked (
1896 gklass->methods [i], class, mono_class_get_context (class), &error);
1897 if (!mono_error_ok (&error)) {
1898 char *method = mono_method_full_name (gklass->methods [i], TRUE);
1899 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)));
1902 mono_error_cleanup (&error);
1903 mono_loader_unlock ();
1907 } else if (class->rank) {
1909 MonoMethod *amethod;
1910 MonoMethodSignature *sig;
1911 int count_generic = 0, first_generic = 0;
1914 class->method.count = 3 + (class->rank > 1? 2: 1);
1916 mono_class_setup_interfaces (class, &error);
1917 g_assert (mono_error_ok (&error)); /*FIXME can this fail for array types?*/
1919 if (class->interface_count) {
1920 count_generic = generic_array_methods (class);
1921 first_generic = class->method.count;
1922 class->method.count += class->interface_count * count_generic;
1925 methods = mono_class_alloc0 (class, sizeof (MonoMethod*) * class->method.count);
1927 sig = mono_metadata_signature_alloc (class->image, class->rank);
1928 sig->ret = &mono_defaults.void_class->byval_arg;
1929 sig->pinvoke = TRUE;
1930 sig->hasthis = TRUE;
1931 for (i = 0; i < class->rank; ++i)
1932 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1934 amethod = create_array_method (class, ".ctor", sig);
1935 methods [method_num++] = amethod;
1936 if (class->rank > 1) {
1937 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1938 sig->ret = &mono_defaults.void_class->byval_arg;
1939 sig->pinvoke = TRUE;
1940 sig->hasthis = TRUE;
1941 for (i = 0; i < class->rank * 2; ++i)
1942 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1944 amethod = create_array_method (class, ".ctor", sig);
1945 methods [method_num++] = amethod;
1947 /* element Get (idx11, [idx2, ...]) */
1948 sig = mono_metadata_signature_alloc (class->image, class->rank);
1949 sig->ret = &class->element_class->byval_arg;
1950 sig->pinvoke = TRUE;
1951 sig->hasthis = TRUE;
1952 for (i = 0; i < class->rank; ++i)
1953 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1954 amethod = create_array_method (class, "Get", sig);
1955 methods [method_num++] = amethod;
1956 /* element& Address (idx11, [idx2, ...]) */
1957 sig = mono_metadata_signature_alloc (class->image, class->rank);
1958 sig->ret = &class->element_class->this_arg;
1959 sig->pinvoke = TRUE;
1960 sig->hasthis = TRUE;
1961 for (i = 0; i < class->rank; ++i)
1962 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1963 amethod = create_array_method (class, "Address", sig);
1964 methods [method_num++] = amethod;
1965 /* void Set (idx11, [idx2, ...], element) */
1966 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1967 sig->ret = &mono_defaults.void_class->byval_arg;
1968 sig->pinvoke = TRUE;
1969 sig->hasthis = TRUE;
1970 for (i = 0; i < class->rank; ++i)
1971 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1972 sig->params [i] = &class->element_class->byval_arg;
1973 amethod = create_array_method (class, "Set", sig);
1974 methods [method_num++] = amethod;
1976 for (i = 0; i < class->interface_count; i++)
1977 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1979 methods = mono_class_alloc (class, sizeof (MonoMethod*) * class->method.count);
1980 for (i = 0; i < class->method.count; ++i) {
1981 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1982 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1986 if (MONO_CLASS_IS_INTERFACE (class)) {
1988 /*Only assign slots to virtual methods as interfaces are allowed to have static methods.*/
1989 for (i = 0; i < class->method.count; ++i) {
1990 if (methods [i]->flags & METHOD_ATTRIBUTE_VIRTUAL)
1991 methods [i]->slot = slot++;
1995 /* Needed because of the double-checking locking pattern */
1996 mono_memory_barrier ();
1998 class->methods = methods;
2000 if (mono_debugger_class_loaded_methods_func)
2001 mono_debugger_class_loaded_methods_func (class);
2003 mono_loader_unlock ();
2007 * mono_class_get_method_by_index:
2009 * Returns class->methods [index], initializing class->methods if neccesary.
2011 * LOCKING: Acquires the loader lock.
2014 mono_class_get_method_by_index (MonoClass *class, int index)
2016 /* Avoid calling setup_methods () if possible */
2017 if (class->generic_class && !class->methods) {
2018 MonoClass *gklass = class->generic_class->container_class;
2021 m = mono_class_inflate_generic_method_full (
2022 gklass->methods [index], class, mono_class_get_context (class));
2024 * If setup_methods () is called later for this class, no duplicates are created,
2025 * since inflate_generic_method guarantees that only one instance of a method
2026 * is created for each context.
2029 mono_class_setup_methods (class);
2030 g_assert (m == class->methods [index]);
2034 mono_class_setup_methods (class);
2035 if (class->exception_type) /*FIXME do proper error handling*/
2037 g_assert (index >= 0 && index < class->method.count);
2038 return class->methods [index];
2043 * mono_class_get_inflated_method:
2045 * Given an inflated class CLASS and a method METHOD which should be a method of
2046 * CLASS's generic definition, return the inflated method corresponding to METHOD.
2049 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
2051 MonoClass *gklass = class->generic_class->container_class;
2054 g_assert (method->klass == gklass);
2056 mono_class_setup_methods (gklass);
2057 g_assert (!gklass->exception_type); /*FIXME do proper error handling*/
2059 for (i = 0; i < gklass->method.count; ++i) {
2060 if (gklass->methods [i] == method) {
2062 return class->methods [i];
2064 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
2072 * mono_class_get_vtable_entry:
2074 * Returns class->vtable [offset], computing it if neccesary. Returns NULL on failure.
2075 * LOCKING: Acquires the loader lock.
2078 mono_class_get_vtable_entry (MonoClass *class, int offset)
2082 if (class->rank == 1) {
2084 * szarrays do not overwrite any methods of Array, so we can avoid
2085 * initializing their vtables in some cases.
2087 mono_class_setup_vtable (class->parent);
2088 if (offset < class->parent->vtable_size)
2089 return class->parent->vtable [offset];
2092 if (class->generic_class) {
2093 MonoClass *gklass = class->generic_class->container_class;
2094 mono_class_setup_vtable (gklass);
2095 m = gklass->vtable [offset];
2097 m = mono_class_inflate_generic_method_full (m, class, mono_class_get_context (class));
2099 mono_class_setup_vtable (class);
2100 if (class->exception_type)
2102 m = class->vtable [offset];
2109 * mono_class_get_vtable_size:
2111 * Return the vtable size for KLASS.
2114 mono_class_get_vtable_size (MonoClass *klass)
2116 mono_class_setup_vtable (klass);
2118 return klass->vtable_size;
2121 /*This method can fail the class.*/
2123 mono_class_setup_properties (MonoClass *class)
2125 guint startm, endm, i, j;
2126 guint32 cols [MONO_PROPERTY_SIZE];
2127 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2128 MonoProperty *properties;
2131 if (class->ext && class->ext->properties)
2134 mono_loader_lock ();
2136 if (class->ext && class->ext->properties) {
2137 mono_loader_unlock ();
2141 mono_class_alloc_ext (class);
2143 if (class->generic_class) {
2144 MonoClass *gklass = class->generic_class->container_class;
2146 mono_class_init (gklass);
2147 mono_class_setup_properties (gklass);
2148 if (gklass->exception_type) {
2149 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2150 mono_loader_unlock ();
2154 class->ext->property = gklass->ext->property;
2156 properties = mono_class_new0 (class, MonoProperty, class->ext->property.count + 1);
2158 for (i = 0; i < class->ext->property.count; i++) {
2159 MonoProperty *prop = &properties [i];
2161 *prop = gklass->ext->properties [i];
2164 prop->get = mono_class_inflate_generic_method_full (
2165 prop->get, class, mono_class_get_context (class));
2167 prop->set = mono_class_inflate_generic_method_full (
2168 prop->set, class, mono_class_get_context (class));
2170 prop->parent = class;
2173 int first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2174 int count = last - first;
2177 mono_class_setup_methods (class);
2178 if (class->exception_type) {
2179 mono_loader_unlock ();
2184 class->ext->property.first = first;
2185 class->ext->property.count = count;
2186 properties = mono_class_alloc0 (class, sizeof (MonoProperty) * count);
2187 for (i = first; i < last; ++i) {
2188 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
2189 properties [i - first].parent = class;
2190 properties [i - first].attrs = cols [MONO_PROPERTY_FLAGS];
2191 properties [i - first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
2193 startm = mono_metadata_methods_from_property (class->image, i, &endm);
2194 for (j = startm; j < endm; ++j) {
2197 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2199 if (class->image->uncompressed_metadata)
2200 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2201 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2203 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2205 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2206 case METHOD_SEMANTIC_SETTER:
2207 properties [i - first].set = method;
2209 case METHOD_SEMANTIC_GETTER:
2210 properties [i - first].get = method;
2218 /*Flush any pending writes as we do double checked locking on class->properties */
2219 mono_memory_barrier ();
2221 /* Leave this assignment as the last op in the function */
2222 class->ext->properties = properties;
2224 mono_loader_unlock ();
2228 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
2230 MonoMethod **om, **retval;
2233 for (om = methods, count = 0; *om; ++om, ++count)
2236 retval = g_new0 (MonoMethod*, count + 1);
2238 for (om = methods, count = 0; *om; ++om, ++count)
2239 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
2244 /*This method can fail the class.*/
2246 mono_class_setup_events (MonoClass *class)
2249 guint startm, endm, i, j;
2250 guint32 cols [MONO_EVENT_SIZE];
2251 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
2255 if (class->ext && class->ext->events)
2258 mono_loader_lock ();
2260 if (class->ext && class->ext->events) {
2261 mono_loader_unlock ();
2265 mono_class_alloc_ext (class);
2267 if (class->generic_class) {
2268 MonoClass *gklass = class->generic_class->container_class;
2269 MonoGenericContext *context;
2271 mono_class_setup_events (gklass);
2272 if (gklass->exception_type) {
2273 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2274 mono_loader_unlock ();
2278 class->ext->event = gklass->ext->event;
2279 class->ext->events = mono_class_new0 (class, MonoEvent, class->ext->event.count);
2281 if (class->ext->event.count)
2282 context = mono_class_get_context (class);
2284 for (i = 0; i < class->ext->event.count; i++) {
2285 MonoEvent *event = &class->ext->events [i];
2286 MonoEvent *gevent = &gklass->ext->events [i];
2288 event->parent = class;
2289 event->name = gevent->name;
2290 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
2291 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
2292 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
2293 #ifndef MONO_SMALL_CONFIG
2294 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
2296 event->attrs = gevent->attrs;
2299 mono_loader_unlock ();
2303 first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
2304 count = last - first;
2307 mono_class_setup_methods (class);
2308 if (class->exception_type) {
2309 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Generic type definition failed to load"));
2310 mono_loader_unlock ();
2314 class->ext->event.first = first;
2315 class->ext->event.count = count;
2316 events = mono_class_alloc0 (class, sizeof (MonoEvent) * class->ext->event.count);
2317 for (i = first; i < last; ++i) {
2318 MonoEvent *event = &events [i - first];
2320 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
2321 event->parent = class;
2322 event->attrs = cols [MONO_EVENT_FLAGS];
2323 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
2325 startm = mono_metadata_methods_from_event (class->image, i, &endm);
2326 for (j = startm; j < endm; ++j) {
2329 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
2331 if (class->image->uncompressed_metadata)
2332 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2333 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
2335 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
2337 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
2338 case METHOD_SEMANTIC_ADD_ON:
2339 event->add = method;
2341 case METHOD_SEMANTIC_REMOVE_ON:
2342 event->remove = method;
2344 case METHOD_SEMANTIC_FIRE:
2345 event->raise = method;
2347 case METHOD_SEMANTIC_OTHER: {
2348 #ifndef MONO_SMALL_CONFIG
2351 if (event->other == NULL) {
2352 event->other = g_new0 (MonoMethod*, 2);
2354 while (event->other [n])
2356 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
2358 event->other [n] = method;
2359 /* NULL terminated */
2360 event->other [n + 1] = NULL;
2369 /*Flush any pending writes as we do double checked locking on class->properties */
2370 mono_memory_barrier ();
2372 /* Leave this assignment as the last op in the function */
2373 class->ext->events = events;
2375 mono_loader_unlock ();
2379 * Global pool of interface IDs, represented as a bitset.
2380 * LOCKING: this is supposed to be accessed with the loader lock held.
2382 static MonoBitSet *global_interface_bitset = NULL;
2385 * mono_unload_interface_ids:
2386 * @bitset: bit set of interface IDs
2388 * When an image is unloaded, the interface IDs associated with
2389 * the image are put back in the global pool of IDs so the numbers
2393 mono_unload_interface_ids (MonoBitSet *bitset)
2395 mono_loader_lock ();
2396 mono_bitset_sub (global_interface_bitset, bitset);
2397 mono_loader_unlock ();
2401 * mono_get_unique_iid:
2404 * Assign a unique integer ID to the interface represented by @class.
2405 * The ID will positive and as small as possible.
2406 * LOCKING: this is supposed to be called with the loader lock held.
2407 * Returns: the new ID.
2410 mono_get_unique_iid (MonoClass *class)
2414 g_assert (MONO_CLASS_IS_INTERFACE (class));
2416 if (!global_interface_bitset) {
2417 global_interface_bitset = mono_bitset_new (128, 0);
2420 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2422 int old_size = mono_bitset_size (global_interface_bitset);
2423 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2424 mono_bitset_free (global_interface_bitset);
2425 global_interface_bitset = new_set;
2428 mono_bitset_set (global_interface_bitset, iid);
2429 /* set the bit also in the per-image set */
2430 if (class->image->interface_bitset) {
2431 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2432 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2433 mono_bitset_free (class->image->interface_bitset);
2434 class->image->interface_bitset = new_set;
2437 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2439 mono_bitset_set (class->image->interface_bitset, iid);
2441 #ifndef MONO_SMALL_CONFIG
2442 if (mono_print_vtable) {
2444 char *type_name = mono_type_full_name (&class->byval_arg);
2445 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2446 generic_id = class->generic_class->context.class_inst->id;
2447 g_assert (generic_id != 0);
2451 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2456 g_assert (iid <= 65535);
2461 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res, MonoError *error)
2466 mono_class_setup_interfaces (klass, error);
2467 if (!mono_error_ok (error))
2470 for (i = 0; i < klass->interface_count; i++) {
2471 ic = klass->interfaces [i];
2474 *res = g_ptr_array_new ();
2475 g_ptr_array_add (*res, ic);
2476 mono_class_init (ic);
2477 if (ic->exception_type) {
2478 mono_error_set_type_load_class (error, ic, "Error Loading class");
2482 collect_implemented_interfaces_aux (ic, res, error);
2483 if (!mono_error_ok (error))
2489 mono_class_get_implemented_interfaces (MonoClass *klass, MonoError *error)
2491 GPtrArray *res = NULL;
2493 collect_implemented_interfaces_aux (klass, &res, error);
2494 if (!mono_error_ok (error)) {
2496 g_ptr_array_free (res, TRUE);
2503 compare_interface_ids (const void *p_key, const void *p_element) {
2504 const MonoClass *key = p_key;
2505 const MonoClass *element = *(MonoClass**) p_element;
2507 return (key->interface_id - element->interface_id);
2510 /*FIXME verify all callers if they should switch to mono_class_interface_offset_with_variance*/
2512 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2513 MonoClass **result = bsearch (
2515 klass->interfaces_packed,
2516 klass->interface_offsets_count,
2517 sizeof (MonoClass *),
2518 compare_interface_ids);
2520 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2527 * mono_class_interface_offset_with_variance:
2529 * Return the interface offset of @itf in @klass. Sets @non_exact_match to TRUE if the match required variance check
2530 * If @itf is an interface with generic variant arguments, try to find the compatible one.
2532 * Note that this function is responsible for resolving ambiguities. Right now we use whatever ordering interfaces_packed gives us.
2534 * FIXME figure out MS disambiguation rules and fix this function.
2537 mono_class_interface_offset_with_variance (MonoClass *klass, MonoClass *itf, gboolean *non_exact_match) {
2538 int i = mono_class_interface_offset (klass, itf);
2539 *non_exact_match = FALSE;
2543 if (!mono_class_has_variant_generic_params (itf))
2546 for (i = 0; i < klass->interface_offsets_count; i++) {
2547 if (mono_class_is_variant_compatible (itf, klass->interfaces_packed [i])) {
2548 *non_exact_match = TRUE;
2549 return klass->interface_offsets_packed [i];
2557 print_implemented_interfaces (MonoClass *klass) {
2560 GPtrArray *ifaces = NULL;
2562 int ancestor_level = 0;
2564 name = mono_type_get_full_name (klass);
2565 printf ("Packed interface table for class %s has size %d\n", name, klass->interface_offsets_count);
2568 for (i = 0; i < klass->interface_offsets_count; i++)
2569 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2570 klass->interfaces_packed [i]->interface_id,
2571 klass->interface_offsets_packed [i],
2572 klass->interfaces_packed [i]->method.count,
2573 klass->interfaces_packed [i]->name_space,
2574 klass->interfaces_packed [i]->name );
2575 printf ("Interface flags: ");
2576 for (i = 0; i <= klass->max_interface_id; i++)
2577 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2578 printf ("(%d,T)", i);
2580 printf ("(%d,F)", i);
2582 printf ("Dump interface flags:");
2583 #ifdef COMPRESSED_INTERFACE_BITMAP
2585 const uint8_t* p = klass->interface_bitmap;
2586 i = klass->max_interface_id;
2588 printf (" %d x 00 %02X", p [0], p [1]);
2594 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2595 printf (" %02X", klass->interface_bitmap [i]);
2598 while (klass != NULL) {
2599 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2600 ifaces = mono_class_get_implemented_interfaces (klass, &error);
2601 if (!mono_error_ok (&error)) {
2602 printf (" Type failed due to %s\n", mono_error_get_message (&error));
2603 mono_error_cleanup (&error);
2604 } else if (ifaces) {
2605 for (i = 0; i < ifaces->len; i++) {
2606 MonoClass *ic = g_ptr_array_index (ifaces, i);
2607 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2608 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2610 mono_class_interface_offset (klass, ic),
2615 g_ptr_array_free (ifaces, TRUE);
2618 klass = klass->parent;
2623 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2626 args [0] = &arg0->byval_arg;
2628 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2632 array_class_get_if_rank (MonoClass *class, guint rank)
2634 return rank ? mono_array_class_get (class, rank) : class;
2638 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2640 valuetype_types [0] = eclass;
2641 if (eclass == mono_defaults.int16_class)
2642 valuetype_types [1] = mono_defaults.uint16_class;
2643 else if (eclass == mono_defaults.uint16_class)
2644 valuetype_types [1] = mono_defaults.int16_class;
2645 else if (eclass == mono_defaults.int32_class)
2646 valuetype_types [1] = mono_defaults.uint32_class;
2647 else if (eclass == mono_defaults.uint32_class)
2648 valuetype_types [1] = mono_defaults.int32_class;
2649 else if (eclass == mono_defaults.int64_class)
2650 valuetype_types [1] = mono_defaults.uint64_class;
2651 else if (eclass == mono_defaults.uint64_class)
2652 valuetype_types [1] = mono_defaults.int64_class;
2653 else if (eclass == mono_defaults.byte_class)
2654 valuetype_types [1] = mono_defaults.sbyte_class;
2655 else if (eclass == mono_defaults.sbyte_class)
2656 valuetype_types [1] = mono_defaults.byte_class;
2657 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2658 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2661 /* this won't be needed once bug #325495 is completely fixed
2662 * though we'll need something similar to know which interfaces to allow
2663 * in arrays when they'll be lazyly created
2665 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2666 * MS returns diferrent types based on which instance is called. For example:
2667 * object obj = new byte[10][];
2668 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2669 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2672 * Fixing this should kill quite some code, save some bits and improve compatibility.
2675 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2677 MonoClass *eclass = class->element_class;
2678 static MonoClass* generic_icollection_class = NULL;
2679 static MonoClass* generic_ienumerable_class = NULL;
2680 static MonoClass* generic_ienumerator_class = NULL;
2681 MonoClass *valuetype_types[2] = { NULL, NULL };
2682 MonoClass **interfaces = NULL;
2683 int i, interface_count, real_count, original_rank;
2685 gboolean internal_enumerator;
2686 gboolean eclass_is_valuetype;
2688 if (!mono_defaults.generic_ilist_class) {
2692 internal_enumerator = FALSE;
2693 eclass_is_valuetype = FALSE;
2694 original_rank = eclass->rank;
2695 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2696 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2698 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2700 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2701 original_rank = eclass->rank;
2702 eclass = eclass->element_class;
2703 internal_enumerator = TRUE;
2704 *is_enumerator = TRUE;
2712 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2713 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2715 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2717 if (!generic_icollection_class) {
2718 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2719 "System.Collections.Generic", "ICollection`1");
2720 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2721 "System.Collections.Generic", "IEnumerable`1");
2722 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2723 "System.Collections.Generic", "IEnumerator`1");
2726 mono_class_init (eclass);
2729 * Arrays in 2.0 need to implement a number of generic interfaces
2730 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2731 * on the element class). We collect the types needed to build the
2732 * instantiations in interfaces at intervals of 3, because 3 are
2733 * the generic interfaces needed to implement.
2735 if (eclass->valuetype) {
2736 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2738 /* IList, ICollection, IEnumerable */
2739 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2740 if (internal_enumerator) {
2742 if (valuetype_types [1])
2746 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2747 interfaces [0] = valuetype_types [0];
2748 if (valuetype_types [1])
2749 interfaces [3] = valuetype_types [1];
2751 eclass_is_valuetype = TRUE;
2754 int idepth = eclass->idepth;
2755 if (!internal_enumerator)
2758 // FIXME: This doesn't seem to work/required for generic params
2759 if (!(eclass->this_arg.type == MONO_TYPE_VAR || eclass->this_arg.type == MONO_TYPE_MVAR || (eclass->image->dynamic && !eclass->wastypebuilder)))
2760 mono_class_setup_interface_offsets (eclass);
2762 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2763 /* we add object for interfaces and the supertypes for the other
2764 * types. The last of the supertypes is the element class itself which we
2765 * already created the explicit interfaces for (so we include it for IEnumerator
2766 * and exclude it for arrays).
2768 if (MONO_CLASS_IS_INTERFACE (eclass))
2771 interface_count += idepth;
2772 if (eclass->rank && eclass->element_class->valuetype) {
2773 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2774 if (valuetype_types [1])
2777 /* IList, ICollection, IEnumerable */
2778 interface_count *= 3;
2779 real_count = interface_count;
2780 if (internal_enumerator) {
2781 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2782 if (valuetype_types [1])
2785 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2786 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2787 interfaces [0] = mono_defaults.object_class;
2791 for (i = 0; i < idepth; i++) {
2792 mono_class_init (eclass->supertypes [i]);
2793 interfaces [j] = eclass->supertypes [i];
2797 if (all_interfaces) {
2798 for (i = 0; i < eclass->interface_offsets_count; i++) {
2799 interfaces [j] = eclass->interfaces_packed [i];
2803 for (i = 0; i < eclass->interface_count; i++) {
2804 interfaces [j] = eclass->interfaces [i];
2808 if (valuetype_types [1]) {
2809 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2814 /* instantiate the generic interfaces */
2815 for (i = 0; i < interface_count; i += 3) {
2816 MonoClass *iface = interfaces [i];
2818 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2819 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2820 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2822 if (internal_enumerator) {
2824 /* instantiate IEnumerator<iface> */
2825 for (i = 0; i < interface_count; i++) {
2826 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2828 j = interface_count;
2829 if (!eclass_is_valuetype) {
2830 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2831 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2834 for (i = 0; i < eclass->idepth; i++) {
2835 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2839 for (i = 0; i < eclass->interface_offsets_count; i++) {
2840 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2844 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2846 if (valuetype_types [1])
2847 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2851 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2852 for (i = 0; i < real_count; ++i) {
2853 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2854 g_print ("%s implements %s\n", type_name, name);
2865 find_array_interface (MonoClass *klass, const char *name)
2868 for (i = 0; i < klass->interface_count; ++i) {
2869 if (strcmp (klass->interfaces [i]->name, name) == 0)
2876 * Return the number of virtual methods.
2877 * Even for interfaces we can't simply return the number of methods as all CLR types are allowed to have static methods.
2878 * Return -1 on failure.
2879 * FIXME It would be nice if this information could be cached somewhere.
2882 count_virtual_methods (MonoClass *class)
2886 class = mono_class_get_generic_type_definition (class); /*We can find this information by looking at the GTD*/
2888 if (class->methods || !MONO_CLASS_HAS_STATIC_METADATA (class)) {
2889 mono_class_setup_methods (class);
2890 if (class->exception_type)
2893 for (i = 0; i < class->method.count; ++i) {
2894 flags = class->methods [i]->flags;
2895 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2899 for (i = 0; i < class->method.count; ++i) {
2900 flags = mono_metadata_decode_table_row_col (class->image, MONO_TABLE_METHOD, class->method.first + i, MONO_METHOD_FLAGS);
2902 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
2910 find_interface (int num_ifaces, MonoClass **interfaces_full, MonoClass *ic)
2918 m = (l + num_ifaces) / 2;
2919 if (interfaces_full [m] == ic)
2921 if (l == num_ifaces)
2923 if (!interfaces_full [m] || interfaces_full [m]->interface_id > ic->interface_id) {
2932 find_interface_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic)
2934 int i = find_interface (num_ifaces, interfaces_full, ic);
2936 return interface_offsets_full [i];
2941 set_interface_and_offset (int num_ifaces, MonoClass **interfaces_full, int *interface_offsets_full, MonoClass *ic, int offset, mono_bool force_set)
2943 int i = find_interface (num_ifaces, interfaces_full, ic);
2947 interface_offsets_full [i] = offset;
2950 for (i = 0; i < num_ifaces; ++i) {
2951 if (interfaces_full [i]) {
2953 if (interfaces_full [i]->interface_id < ic->interface_id)
2956 while (end < num_ifaces && interfaces_full [end]) end++;
2957 memmove (interfaces_full + i + 1, interfaces_full + i, sizeof (MonoClass*) * (end - i));
2958 memmove (interface_offsets_full + i + 1, interface_offsets_full + i, sizeof (int) * (end - i));
2960 interfaces_full [i] = ic;
2961 interface_offsets_full [i] = offset;
2967 #ifdef COMPRESSED_INTERFACE_BITMAP
2970 * Compressed interface bitmap design.
2972 * Interface bitmaps take a large amount of memory, because their size is
2973 * linear with the maximum interface id assigned in the process (each interface
2974 * is assigned a unique id as it is loaded). The number of interface classes
2975 * is high because of the many implicit interfaces implemented by arrays (we'll
2976 * need to lazy-load them in the future).
2977 * Most classes implement a very small number of interfaces, so the bitmap is
2978 * sparse. This bitmap needs to be checked by interface casts, so access to the
2979 * needed bit must be fast and doable with few jit instructions.
2981 * The current compression format is as follows:
2982 * *) it is a sequence of one or more two-byte elements
2983 * *) the first byte in the element is the count of empty bitmap bytes
2984 * at the current bitmap position
2985 * *) the second byte in the element is an actual bitmap byte at the current
2988 * As an example, the following compressed bitmap bytes:
2989 * 0x07 0x01 0x00 0x7
2990 * correspond to the following bitmap:
2991 * 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x01 0x07
2993 * Each two-byte element can represent up to 2048 bitmap bits, but as few as a single
2994 * bitmap byte for non-sparse sequences. In practice the interface bitmaps created
2995 * during a gmcs bootstrap are reduced to less tha 5% of the original size.
2999 * mono_compress_bitmap:
3000 * @dest: destination buffer
3001 * @bitmap: bitmap buffer
3002 * @size: size of @bitmap in bytes
3004 * This is a mono internal function.
3005 * The @bitmap data is compressed into a format that is small but
3006 * still searchable in few instructions by the JIT and runtime.
3007 * The compressed data is stored in the buffer pointed to by the
3008 * @dest array. Passing a #NULL value for @dest allows to just compute
3009 * the size of the buffer.
3010 * This compression algorithm assumes the bits set in the bitmap are
3011 * few and far between, like in interface bitmaps.
3012 * Returns: the size of the compressed bitmap in bytes.
3015 mono_compress_bitmap (uint8_t *dest, const uint8_t *bitmap, int size)
3019 const uint8_t *end = bitmap + size;
3020 while (bitmap < end) {
3021 if (*bitmap || numz == 255) {
3045 * mono_class_interface_match:
3046 * @bitmap: a compressed bitmap buffer
3047 * @id: the index to check in the bitmap
3049 * This is a mono internal function.
3050 * Checks if a bit is set in a compressed interface bitmap. @id must
3051 * be already checked for being smaller than the maximum id encoded in the
3054 * Returns: a non-zero value if bit @id is set in the bitmap @bitmap,
3058 mono_class_interface_match (const uint8_t *bitmap, int id)
3061 id -= bitmap [0] * 8;
3065 return bitmap [1] & (1 << id);
3074 * LOCKING: this is supposed to be called with the loader lock held.
3075 * Return -1 on failure and set exception_type
3078 setup_interface_offsets (MonoClass *class, int cur_slot)
3082 int i, j, max_iid, num_ifaces;
3083 MonoClass **interfaces_full = NULL;
3084 int *interface_offsets_full = NULL;
3086 GPtrArray **ifaces_array = NULL;
3087 int interface_offsets_count;
3088 MonoClass **array_interfaces = NULL;
3089 int num_array_interfaces;
3090 int is_enumerator = FALSE;
3092 mono_class_setup_supertypes (class);
3094 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
3095 * implicit interfaces have the property that they are assigned the same slot in the
3096 * vtables for compatible interfaces
3098 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
3100 /* compute maximum number of slots and maximum interface id */
3102 num_ifaces = num_array_interfaces; /* this can include duplicated ones */
3103 ifaces_array = g_new0 (GPtrArray *, class->idepth);
3104 for (j = 0; j < class->idepth; j++) {
3105 k = class->supertypes [j];
3106 num_ifaces += k->interface_count;
3107 for (i = 0; i < k->interface_count; i++) {
3108 ic = k->interfaces [i];
3111 mono_class_init (ic);
3113 if (max_iid < ic->interface_id)
3114 max_iid = ic->interface_id;
3116 ifaces = mono_class_get_implemented_interfaces (k, &error);
3117 if (!mono_error_ok (&error)) {
3118 char *name = mono_type_get_full_name (k);
3119 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)));
3121 mono_error_cleanup (&error);
3126 num_ifaces += ifaces->len;
3127 for (i = 0; i < ifaces->len; ++i) {
3128 ic = g_ptr_array_index (ifaces, i);
3129 if (max_iid < ic->interface_id)
3130 max_iid = ic->interface_id;
3132 ifaces_array [j] = ifaces;
3136 for (i = 0; i < num_array_interfaces; ++i) {
3137 ic = array_interfaces [i];
3138 mono_class_init (ic);
3139 if (max_iid < ic->interface_id)
3140 max_iid = ic->interface_id;
3143 if (MONO_CLASS_IS_INTERFACE (class)) {
3145 if (max_iid < class->interface_id)
3146 max_iid = class->interface_id;
3148 class->max_interface_id = max_iid;
3149 /* compute vtable offset for interfaces */
3150 interfaces_full = g_malloc0 (sizeof (MonoClass*) * num_ifaces);
3151 interface_offsets_full = g_malloc (sizeof (int) * num_ifaces);
3153 for (i = 0; i < num_ifaces; i++) {
3154 interface_offsets_full [i] = -1;
3157 /* skip the current class */
3158 for (j = 0; j < class->idepth - 1; j++) {
3159 k = class->supertypes [j];
3160 ifaces = ifaces_array [j];
3163 for (i = 0; i < ifaces->len; ++i) {
3165 ic = g_ptr_array_index (ifaces, i);
3167 /*Force the sharing of interface offsets between parent and subtypes.*/
3168 io = mono_class_interface_offset (k, ic);
3170 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, io, TRUE);
3175 g_assert (class == class->supertypes [class->idepth - 1]);
3176 ifaces = ifaces_array [class->idepth - 1];
3178 for (i = 0; i < ifaces->len; ++i) {
3180 ic = g_ptr_array_index (ifaces, i);
3181 if (set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, cur_slot, FALSE))
3183 count = count_virtual_methods (ic);
3185 char *name = mono_type_get_full_name (ic);
3186 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Error calculating interface offset of %s", name));
3195 if (MONO_CLASS_IS_INTERFACE (class))
3196 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, class, cur_slot, TRUE);
3198 if (num_array_interfaces) {
3199 if (is_enumerator) {
3200 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
3201 int ienumerator_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ienumerator_idx]);
3202 g_assert (ienumerator_offset >= 0);
3203 for (i = 0; i < num_array_interfaces; ++i) {
3204 ic = array_interfaces [i];
3205 if (strcmp (ic->name, "IEnumerator`1") == 0)
3206 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, ienumerator_offset, TRUE);
3208 g_assert_not_reached ();
3209 /*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);*/
3212 int ilist_offset, icollection_offset, ienumerable_offset;
3213 int ilist_iface_idx = find_array_interface (class, "IList`1");
3214 MonoClass* ilist_class = class->interfaces [ilist_iface_idx];
3215 int icollection_iface_idx = find_array_interface (ilist_class, "ICollection`1");
3216 int ienumerable_iface_idx = find_array_interface (ilist_class, "IEnumerable`1");
3217 ilist_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, class->interfaces [ilist_iface_idx]);
3218 icollection_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [icollection_iface_idx]);
3219 ienumerable_offset = find_interface_offset (num_ifaces, interfaces_full, interface_offsets_full, ilist_class->interfaces [ienumerable_iface_idx]);
3220 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
3221 for (i = 0; i < num_array_interfaces; ++i) {
3223 ic = array_interfaces [i];
3224 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
3225 offset = ilist_offset;
3226 else if (strcmp (ic->name, "ICollection`1") == 0)
3227 offset = icollection_offset;
3228 else if (strcmp (ic->name, "IEnumerable`1") == 0)
3229 offset = ienumerable_offset;
3231 g_assert_not_reached ();
3232 set_interface_and_offset (num_ifaces, interfaces_full, interface_offsets_full, ic, offset, TRUE);
3233 /*g_print ("type %s has %s offset at %d (%s)\n", class->name, ic->name, offset, class->interfaces [0]->name);*/
3238 for (interface_offsets_count = 0, i = 0; i < num_ifaces; i++) {
3239 if (interface_offsets_full [i] != -1) {
3240 interface_offsets_count ++;
3245 * We might get called twice: once from mono_class_init () then once from
3246 * mono_class_setup_vtable ().
3248 if (class->interfaces_packed) {
3249 g_assert (class->interface_offsets_count == interface_offsets_count);
3253 class->interface_offsets_count = interface_offsets_count;
3254 class->interfaces_packed = mono_class_alloc (class, sizeof (MonoClass*) * interface_offsets_count);
3255 class->interface_offsets_packed = mono_class_alloc (class, sizeof (guint16) * interface_offsets_count);
3256 bsize = (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0);
3257 #ifdef COMPRESSED_INTERFACE_BITMAP
3258 bitmap = g_malloc0 (bsize);
3260 bitmap = mono_class_alloc0 (class, bsize);
3262 for (i = 0; i < interface_offsets_count; i++) {
3263 int id = interfaces_full [i]->interface_id;
3264 bitmap [id >> 3] |= (1 << (id & 7));
3265 class->interfaces_packed [i] = interfaces_full [i];
3266 class->interface_offsets_packed [i] = interface_offsets_full [i];
3267 /*if (num_array_interfaces)
3268 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]);*/
3270 #ifdef COMPRESSED_INTERFACE_BITMAP
3271 i = mono_compress_bitmap (NULL, bitmap, bsize);
3272 class->interface_bitmap = mono_class_alloc0 (class, i);
3273 mono_compress_bitmap (class->interface_bitmap, bitmap, bsize);
3276 class->interface_bitmap = bitmap;
3281 g_free (interfaces_full);
3282 g_free (interface_offsets_full);
3283 g_free (array_interfaces);
3284 for (i = 0; i < class->idepth; i++) {
3285 ifaces = ifaces_array [i];
3287 g_ptr_array_free (ifaces, TRUE);
3289 g_free (ifaces_array);
3291 //printf ("JUST DONE: ");
3292 //print_implemented_interfaces (class);
3298 * Setup interface offsets for interfaces.
3300 * - class->max_interface_id
3301 * - class->interface_offsets_count
3302 * - class->interfaces_packed
3303 * - class->interface_offsets_packed
3304 * - class->interface_bitmap
3306 * This function can fail @class.
3309 mono_class_setup_interface_offsets (MonoClass *class)
3311 mono_loader_lock ();
3313 setup_interface_offsets (class, 0);
3315 mono_loader_unlock ();
3318 /*Checks if @klass has @parent as one of it's parents type gtd
3322 * Bar<T> : Foo<Bar<Bar<T>>>
3326 mono_class_has_gtd_parent (MonoClass *klass, MonoClass *parent)
3328 klass = mono_class_get_generic_type_definition (klass);
3329 parent = mono_class_get_generic_type_definition (parent);
3330 mono_class_setup_supertypes (klass);
3331 mono_class_setup_supertypes (parent);
3333 return klass->idepth >= parent->idepth &&
3334 mono_class_get_generic_type_definition (klass->supertypes [parent->idepth - 1]) == parent;
3338 mono_class_check_vtable_constraints (MonoClass *class, GList *in_setup)
3340 MonoGenericInst *ginst;
3342 if (!class->generic_class) {
3343 mono_class_setup_vtable_full (class, in_setup);
3344 return class->exception_type == 0;
3347 mono_class_setup_vtable_full (mono_class_get_generic_type_definition (class), in_setup);
3348 if (class->generic_class->container_class->exception_type) {
3349 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Failed to load generic definition vtable"));
3353 ginst = class->generic_class->context.class_inst;
3354 for (i = 0; i < ginst->type_argc; ++i) {
3356 if (ginst->type_argv [i]->type != MONO_TYPE_GENERICINST)
3358 arg = mono_class_from_mono_type (ginst->type_argv [i]);
3359 /*Those 2 will be checked by mono_class_setup_vtable itself*/
3360 if (mono_class_has_gtd_parent (class, arg) || mono_class_has_gtd_parent (arg, class))
3362 if (!mono_class_check_vtable_constraints (arg, in_setup)) {
3363 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup_printf ("Failed to load generic parameter %d", i));
3371 * mono_class_setup_vtable:
3373 * Creates the generic vtable of CLASS.
3374 * Initializes the following fields in MonoClass:
3377 * Plus all the fields initialized by setup_interface_offsets ().
3378 * If there is an error during vtable construction, class->exception_type is set.
3380 * LOCKING: Acquires the loader lock.
3383 mono_class_setup_vtable (MonoClass *class)
3385 mono_class_setup_vtable_full (class, NULL);
3389 mono_class_setup_vtable_full (MonoClass *class, GList *in_setup)
3391 MonoMethod **overrides;
3392 MonoGenericContext *context;
3400 if (mono_debug_using_mono_debugger ())
3401 /* The debugger currently depends on this */
3402 mono_class_setup_methods (class);
3404 if (MONO_CLASS_IS_INTERFACE (class)) {
3405 /* This sets method->slot for all methods if this is an interface */
3406 mono_class_setup_methods (class);
3410 if (class->exception_type)
3413 if (g_list_find (in_setup, class))
3416 mono_loader_lock ();
3418 if (class->vtable) {
3419 mono_loader_unlock ();
3423 mono_stats.generic_vtable_count ++;
3424 in_setup = g_list_prepend (in_setup, class);
3426 if (class->generic_class) {
3427 if (!mono_class_check_vtable_constraints (class, in_setup)) {
3428 mono_loader_unlock ();
3429 g_list_remove (in_setup, class);
3433 context = mono_class_get_context (class);
3434 type_token = class->generic_class->container_class->type_token;
3436 context = (MonoGenericContext *) class->generic_container;
3437 type_token = class->type_token;
3440 if (class->image->dynamic) {
3441 /* Generic instances can have zero method overrides without causing any harm.
3442 * This is true since we don't do layout all over again for them, we simply inflate
3443 * the layout of the parent.
3445 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
3447 /* The following call fails if there are missing methods in the type */
3448 /* FIXME it's probably a good idea to avoid this for generic instances. */
3449 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
3453 mono_class_setup_vtable_general (class, overrides, onum, in_setup);
3455 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load list of method overrides"));
3459 mono_loader_unlock ();
3460 g_list_remove (in_setup, class);
3465 #define DEBUG_INTERFACE_VTABLE_CODE 0
3466 #define TRACE_INTERFACE_VTABLE_CODE 0
3467 #define VERIFY_INTERFACE_VTABLE_CODE 0
3468 #define VTABLE_SELECTOR (1)
3470 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3471 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
3472 if (!(VTABLE_SELECTOR)) break; \
3476 #define DEBUG_INTERFACE_VTABLE(stmt)
3479 #if TRACE_INTERFACE_VTABLE_CODE
3480 #define TRACE_INTERFACE_VTABLE(stmt) do {\
3481 if (!(VTABLE_SELECTOR)) break; \
3485 #define TRACE_INTERFACE_VTABLE(stmt)
3488 #if VERIFY_INTERFACE_VTABLE_CODE
3489 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
3490 if (!(VTABLE_SELECTOR)) break; \
3494 #define VERIFY_INTERFACE_VTABLE(stmt)
3498 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3500 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
3504 GString *res = g_string_new ("");
3506 g_string_append_c (res, '(');
3507 for (i = 0; i < sig->param_count; ++i) {
3509 g_string_append_c (res, ',');
3510 mono_type_get_desc (res, sig->params [i], include_namespace);
3512 g_string_append (res, ")=>");
3513 if (sig->ret != NULL) {
3514 mono_type_get_desc (res, sig->ret, include_namespace);
3516 g_string_append (res, "NULL");
3519 g_string_free (res, FALSE);
3523 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
3524 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
3525 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
3526 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
3534 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) {
3535 MonoMethodSignature *cmsig, *imsig;
3536 if (strcmp (im->name, cm->name) == 0) {
3537 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
3538 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
3541 if (! slot_is_empty) {
3542 if (require_newslot) {
3543 if (! interface_is_explicitly_implemented_by_class) {
3544 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
3547 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3548 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
3552 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
3555 cmsig = mono_method_signature (cm);
3556 imsig = mono_method_signature (im);
3557 if (!cmsig || !imsig) {
3558 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not resolve the signature of a virtual method"));
3562 if (! mono_metadata_signature_equal (cmsig, imsig)) {
3563 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
3564 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
3565 TRACE_INTERFACE_VTABLE (printf ("]"));
3568 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
3569 /* CAS - SecurityAction.InheritanceDemand on interface */
3570 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3571 mono_secman_inheritancedemand_method (cm, im);
3574 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3575 mono_security_core_clr_check_override (class, cm, im);
3576 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
3579 MonoClass *ic = im->klass;
3580 const char *ic_name_space = ic->name_space;
3581 const char *ic_name = ic->name;
3584 if (! require_newslot) {
3585 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
3588 if (cm->klass->rank == 0) {
3589 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
3592 cmsig = mono_method_signature (cm);
3593 imsig = mono_method_signature (im);
3594 if (!cmsig || !imsig) {
3595 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not resolve the signature of a virtual method"));
3599 if (! mono_metadata_signature_equal (cmsig, imsig)) {
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 ();
4876 if (class->generic_class && !mono_verifier_class_is_valid_generic_instantiation (class))
4877 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Invalid generic instantiation"));
4882 /* Because of the double-checking locking pattern */
4883 mono_memory_barrier ();
4885 class->init_pending = 0;
4887 mono_loader_unlock ();
4889 if (mono_debugger_class_init_func)
4890 mono_debugger_class_init_func (class);
4892 return class->exception_type == MONO_EXCEPTION_NONE;
4896 mono_is_corlib_image (MonoImage *image)
4898 /* FIXME: allow the dynamic case for our compilers and with full trust */
4900 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
4902 return image == mono_defaults.corlib;
4906 * LOCKING: this assumes the loader lock is held
4909 mono_class_setup_mono_type (MonoClass *class)
4911 const char *name = class->name;
4912 const char *nspace = class->name_space;
4913 gboolean is_corlib = mono_is_corlib_image (class->image);
4915 class->this_arg.byref = 1;
4916 class->this_arg.data.klass = class;
4917 class->this_arg.type = MONO_TYPE_CLASS;
4918 class->byval_arg.data.klass = class;
4919 class->byval_arg.type = MONO_TYPE_CLASS;
4921 if (is_corlib && !strcmp (nspace, "System")) {
4922 if (!strcmp (name, "ValueType")) {
4924 * do not set the valuetype bit for System.ValueType.
4925 * class->valuetype = 1;
4927 class->blittable = TRUE;
4928 } else if (!strcmp (name, "Enum")) {
4930 * do not set the valuetype bit for System.Enum.
4931 * class->valuetype = 1;
4933 class->valuetype = 0;
4934 class->enumtype = 0;
4935 } else if (!strcmp (name, "Object")) {
4936 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
4937 } else if (!strcmp (name, "String")) {
4938 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
4939 } else if (!strcmp (name, "TypedReference")) {
4940 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
4944 if (class->valuetype) {
4945 int t = MONO_TYPE_VALUETYPE;
4947 if (is_corlib && !strcmp (nspace, "System")) {
4950 if (!strcmp (name, "Boolean")) {
4951 t = MONO_TYPE_BOOLEAN;
4952 } else if (!strcmp(name, "Byte")) {
4954 class->blittable = TRUE;
4958 if (!strcmp (name, "Char")) {
4963 if (!strcmp (name, "Double")) {
4965 class->blittable = TRUE;
4969 if (!strcmp (name, "Int32")) {
4971 class->blittable = TRUE;
4972 } else if (!strcmp(name, "Int16")) {
4974 class->blittable = TRUE;
4975 } else if (!strcmp(name, "Int64")) {
4977 class->blittable = TRUE;
4978 } else if (!strcmp(name, "IntPtr")) {
4980 class->blittable = TRUE;
4984 if (!strcmp (name, "Single")) {
4986 class->blittable = TRUE;
4987 } else if (!strcmp(name, "SByte")) {
4989 class->blittable = TRUE;
4993 if (!strcmp (name, "UInt32")) {
4995 class->blittable = TRUE;
4996 } else if (!strcmp(name, "UInt16")) {
4998 class->blittable = TRUE;
4999 } else if (!strcmp(name, "UInt64")) {
5001 class->blittable = TRUE;
5002 } else if (!strcmp(name, "UIntPtr")) {
5004 class->blittable = TRUE;
5008 if (!strcmp (name, "TypedReference")) {
5009 t = MONO_TYPE_TYPEDBYREF;
5010 class->blittable = TRUE;
5014 if (!strcmp (name, "Void")) {
5022 class->this_arg.type = class->byval_arg.type = t;
5025 if (MONO_CLASS_IS_INTERFACE (class))
5026 class->interface_id = mono_get_unique_iid (class);
5031 * COM initialization (using mono_init_com_types) is delayed until needed.
5032 * However when a [ComImport] attribute is present on a type it will trigger
5033 * the initialization. This is not a problem unless the BCL being executed
5034 * lacks the types that COM depends on (e.g. Variant on Silverlight).
5037 init_com_from_comimport (MonoClass *class)
5039 /* we don't always allow COM initialization under the CoreCLR (e.g. Moonlight does not require it) */
5040 if ((mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)) {
5041 /* but some other CoreCLR user could requires it for their platform (i.e. trusted) code */
5042 if (!mono_security_core_clr_determine_platform_image (class->image)) {
5043 /* but it can not be made available for application (i.e. user code) since all COM calls
5044 * are considered native calls. In this case we fail with a TypeLoadException (just like
5045 * Silverlight 2 does */
5046 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5050 /* FIXME : we should add an extra checks to ensure COM can be initialized properly before continuing */
5051 mono_init_com_types ();
5055 * LOCKING: this assumes the loader lock is held
5058 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
5060 gboolean system_namespace;
5061 gboolean is_corlib = mono_is_corlib_image (class->image);
5063 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
5065 /* if root of the hierarchy */
5066 if (system_namespace && !strcmp (class->name, "Object")) {
5067 class->parent = NULL;
5068 class->instance_size = sizeof (MonoObject);
5071 if (!strcmp (class->name, "<Module>")) {
5072 class->parent = NULL;
5073 class->instance_size = 0;
5077 if (!MONO_CLASS_IS_INTERFACE (class)) {
5078 /* Imported COM Objects always derive from __ComObject. */
5079 if (MONO_CLASS_IS_IMPORT (class)) {
5080 init_com_from_comimport (class);
5081 if (parent == mono_defaults.object_class)
5082 parent = mono_defaults.com_object_class;
5085 /* set the parent to something useful and safe, but mark the type as broken */
5086 parent = mono_defaults.object_class;
5087 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5090 class->parent = parent;
5092 if (parent->generic_class && !parent->name) {
5094 * If the parent is a generic instance, we may get
5095 * called before it is fully initialized, especially
5096 * before it has its name.
5101 class->marshalbyref = parent->marshalbyref;
5102 class->contextbound = parent->contextbound;
5103 class->delegate = parent->delegate;
5104 if (MONO_CLASS_IS_IMPORT (class))
5105 class->is_com_object = 1;
5107 class->is_com_object = parent->is_com_object;
5109 if (system_namespace) {
5110 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
5111 class->marshalbyref = 1;
5113 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
5114 class->contextbound = 1;
5116 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
5117 class->delegate = 1;
5120 if (class->parent->enumtype || (mono_is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
5121 (strcmp (class->parent->name_space, "System") == 0)))
5122 class->valuetype = 1;
5123 if (mono_is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
5124 class->valuetype = class->enumtype = 1;
5126 /*class->enumtype = class->parent->enumtype; */
5127 mono_class_setup_supertypes (class);
5129 /* initialize com types if COM interfaces are present */
5130 if (MONO_CLASS_IS_IMPORT (class))
5131 init_com_from_comimport (class);
5132 class->parent = NULL;
5138 * mono_class_setup_supertypes:
5141 * Build the data structure needed to make fast type checks work.
5142 * This currently sets two fields in @class:
5143 * - idepth: distance between @class and System.Object in the type
5145 * - supertypes: array of classes: each element has a class in the hierarchy
5146 * starting from @class up to System.Object
5148 * LOCKING: this assumes the loader lock is held
5151 mono_class_setup_supertypes (MonoClass *class)
5155 if (class->supertypes)
5158 if (class->parent && !class->parent->supertypes)
5159 mono_class_setup_supertypes (class->parent);
5161 class->idepth = class->parent->idepth + 1;
5165 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
5166 class->supertypes = mono_class_alloc0 (class, sizeof (MonoClass *) * ms);
5168 if (class->parent) {
5169 class->supertypes [class->idepth - 1] = class;
5170 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
5172 class->supertypes [0] = class;
5177 * mono_class_create_from_typedef:
5178 * @image: image where the token is valid
5179 * @type_token: typedef token
5181 * Create the MonoClass* representing the specified type token.
5182 * @type_token must be a TypeDef token.
5184 * FIXME: don't return NULL on failure, just the the caller figure it out.
5187 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
5189 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5190 MonoClass *class, *parent = NULL;
5191 guint32 cols [MONO_TYPEDEF_SIZE];
5192 guint32 cols_next [MONO_TYPEDEF_SIZE];
5193 guint tidx = mono_metadata_token_index (type_token);
5194 MonoGenericContext *context = NULL;
5195 const char *name, *nspace;
5197 MonoClass **interfaces;
5198 guint32 field_last, method_last;
5199 guint32 nesting_tokeen;
5201 if (mono_metadata_token_table (type_token) != MONO_TABLE_TYPEDEF || tidx > tt->rows)
5204 mono_loader_lock ();
5206 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
5207 mono_loader_unlock ();
5211 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5213 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5214 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5216 class = mono_image_alloc0 (image, sizeof (MonoClass));
5219 class->name_space = nspace;
5221 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
5223 class->image = image;
5224 class->type_token = type_token;
5225 class->flags = cols [MONO_TYPEDEF_FLAGS];
5227 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
5229 classes_size += sizeof (MonoClass);
5232 * Check whether we're a generic type definition.
5234 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
5235 if (class->generic_container) {
5236 class->is_generic = 1;
5237 class->generic_container->owner.klass = class;
5238 context = &class->generic_container->context;
5241 if (cols [MONO_TYPEDEF_EXTENDS]) {
5243 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
5245 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
5246 /*WARNING: this must satisfy mono_metadata_type_hash*/
5247 class->this_arg.byref = 1;
5248 class->this_arg.data.klass = class;
5249 class->this_arg.type = MONO_TYPE_CLASS;
5250 class->byval_arg.data.klass = class;
5251 class->byval_arg.type = MONO_TYPE_CLASS;
5253 parent = mono_class_get_full (image, parent_token, context);
5255 if (parent == NULL){
5256 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load parent type"));
5257 mono_loader_clear_error ();
5258 goto parent_failure;
5261 for (tmp = parent; tmp; tmp = tmp->parent) {
5263 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Cycle found while resolving parent"));
5264 goto parent_failure;
5266 if (class->generic_container && tmp->generic_class && tmp->generic_class->container_class == class) {
5267 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Parent extends generic instance of this type"));
5268 goto parent_failure;
5273 mono_class_setup_parent (class, parent);
5275 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
5276 mono_class_setup_mono_type (class);
5279 * This might access class->byval_arg for recursion generated by generic constraints,
5280 * so it has to come after setup_mono_type ().
5282 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token))) {
5283 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
5284 if (!class->nested_in) {
5285 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load nestedin type"));
5286 mono_loader_unlock ();
5287 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5292 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
5296 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
5300 class->cast_class = class->element_class = class;
5302 if (!class->enumtype) {
5303 if (!mono_metadata_interfaces_from_typedef_full (
5304 image, type_token, &interfaces, &icount, FALSE, context)){
5305 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not load interfaces"));
5306 mono_loader_unlock ();
5307 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5311 class->interfaces = interfaces;
5312 class->interface_count = icount;
5313 class->interfaces_inited = 1;
5316 /*g_print ("Load class %s\n", name);*/
5319 * Compute the field and method lists
5321 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
5322 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
5324 if (tt->rows > tidx){
5325 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
5326 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
5327 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
5329 field_last = image->tables [MONO_TABLE_FIELD].rows;
5330 method_last = image->tables [MONO_TABLE_METHOD].rows;
5333 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
5334 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
5335 class->field.count = field_last - class->field.first;
5337 class->field.count = 0;
5339 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
5340 class->method.count = method_last - class->method.first;
5342 class->method.count = 0;
5344 /* reserve space to store vector pointer in arrays */
5345 if (mono_is_corlib_image (image) && !strcmp (nspace, "System") && !strcmp (name, "Array")) {
5346 class->instance_size += 2 * sizeof (gpointer);
5347 g_assert (class->field.count == 0);
5350 if (class->enumtype) {
5351 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
5352 if (!enum_basetype) {
5353 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
5354 mono_loader_unlock ();
5355 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5358 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
5362 * If we're a generic type definition, load the constraints.
5363 * We must do this after the class has been constructed to make certain recursive scenarios
5366 if (class->generic_container && !mono_metadata_load_generic_param_constraints_full (image, type_token, class->generic_container)){
5367 char *class_name = g_strdup_printf("%s.%s", class->name_space, class->name);
5368 char *error = concat_two_strings_with_zero (class->image, class_name, class->image->assembly_name);
5369 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, error);
5370 g_free (class_name);
5371 mono_loader_unlock ();
5372 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5376 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
5377 if (!strncmp (name, "Vector", 6))
5378 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");
5381 mono_loader_unlock ();
5383 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
5388 mono_class_setup_mono_type (class);
5389 mono_loader_unlock ();
5390 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
5395 /** is klass Nullable<T>? */
5397 mono_class_is_nullable (MonoClass *klass)
5399 return klass->generic_class != NULL &&
5400 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
5404 /** if klass is T? return T */
5406 mono_class_get_nullable_param (MonoClass *klass)
5408 g_assert (mono_class_is_nullable (klass));
5409 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
5413 * Create the `MonoClass' for an instantiation of a generic type.
5414 * We only do this if we actually need it.
5417 mono_generic_class_get_class (MonoGenericClass *gclass)
5419 MonoClass *klass, *gklass;
5421 mono_loader_lock ();
5422 if (gclass->cached_class) {
5423 mono_loader_unlock ();
5424 return gclass->cached_class;
5427 gclass->cached_class = mono_image_set_alloc0 (gclass->owner, sizeof (MonoClass));
5428 klass = gclass->cached_class;
5430 gklass = gclass->container_class;
5432 if (gklass->nested_in) {
5433 /* The nested_in type should not be inflated since it's possible to produce a nested type with less generic arguments*/
5434 klass->nested_in = gklass->nested_in;
5437 klass->name = gklass->name;
5438 klass->name_space = gklass->name_space;
5440 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5442 klass->image = gklass->image;
5443 klass->flags = gklass->flags;
5444 klass->type_token = gklass->type_token;
5445 klass->field.count = gklass->field.count;
5447 klass->is_inflated = 1;
5448 klass->generic_class = gclass;
5450 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
5451 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
5452 klass->this_arg.byref = TRUE;
5453 klass->enumtype = gklass->enumtype;
5454 klass->valuetype = gklass->valuetype;
5456 klass->cast_class = klass->element_class = klass;
5458 if (mono_class_is_nullable (klass))
5459 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
5462 * We're not interested in the nested classes of a generic instance.
5463 * We use the generic type definition to look for nested classes.
5466 if (gklass->parent) {
5467 klass->parent = mono_class_inflate_generic_class (gklass->parent, mono_generic_class_get_context (gclass));
5471 mono_class_setup_parent (klass, klass->parent);
5473 if (klass->enumtype) {
5474 klass->cast_class = gklass->cast_class;
5475 klass->element_class = gklass->element_class;
5478 if (gclass->is_dynamic) {
5481 mono_class_setup_supertypes (klass);
5483 if (klass->enumtype) {
5485 * For enums, gklass->fields might not been set, but instance_size etc. is
5486 * already set in mono_reflection_create_internal_class (). For non-enums,
5487 * these will be computed normally in mono_class_layout_fields ().
5489 klass->instance_size = gklass->instance_size;
5490 klass->sizes.class_size = gklass->sizes.class_size;
5491 klass->size_inited = 1;
5495 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5497 inflated_classes ++;
5498 inflated_classes_size += sizeof (MonoClass);
5500 mono_loader_unlock ();
5506 make_generic_param_class (MonoGenericParam *param, MonoImage *image, gboolean is_mvar, MonoGenericParamInfo *pinfo)
5508 MonoClass *klass, **ptr;
5510 MonoGenericContainer *container = mono_generic_param_owner (param);
5514 image = mono_defaults.corlib;
5516 klass = mono_image_alloc0 (image, sizeof (MonoClass));
5517 classes_size += sizeof (MonoClass);
5520 klass->name = pinfo->name;
5522 int n = mono_generic_param_num (param);
5523 klass->name = mono_image_alloc0 (image, 16);
5524 sprintf ((char*)klass->name, "%d", n);
5529 MonoMethod *omethod = container->owner.method;
5530 klass->name_space = (omethod && omethod->klass) ? omethod->klass->name_space : "";
5532 MonoClass *oklass = container->owner.klass;
5533 klass->name_space = oklass ? oklass->name_space : "";
5536 klass->name_space = "";
5539 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
5543 for (ptr = pinfo->constraints; ptr && *ptr; ptr++, count++)
5547 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (pinfo->constraints [0])) {
5548 klass->parent = pinfo->constraints [0];
5550 } else if (pinfo && pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
5551 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
5553 klass->parent = mono_defaults.object_class;
5556 if (count - pos > 0) {
5557 klass->interface_count = count - pos;
5558 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
5559 klass->interfaces_inited = TRUE;
5560 for (i = pos; i < count; i++)
5561 klass->interfaces [i - pos] = pinfo->constraints [i];
5564 klass->image = image;
5566 klass->inited = TRUE;
5567 klass->cast_class = klass->element_class = klass;
5568 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
5570 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5571 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
5572 klass->this_arg.byref = TRUE;
5574 /* We don't use type_token for VAR since only classes can use it (not arrays, pointer, VARs, etc) */
5575 klass->sizes.generic_param_token = pinfo ? pinfo->token : 0;
5577 /*Init these fields to sane values*/
5578 klass->min_align = 1;
5579 klass->instance_size = sizeof (gpointer);
5580 klass->size_inited = 1;
5582 mono_class_setup_supertypes (klass);
5584 if (count - pos > 0) {
5585 mono_class_setup_vtable (klass->parent);
5586 if (klass->parent->exception_type)
5587 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Failed to setup parent interfaces"));
5589 setup_interface_offsets (klass, klass->parent->vtable_size);
5595 #define FAST_CACHE_SIZE 16
5596 static MonoClass *var_cache_fast [FAST_CACHE_SIZE];
5597 static MonoClass *mvar_cache_fast [FAST_CACHE_SIZE];
5598 static GHashTable *var_cache_slow;
5599 static GHashTable *mvar_cache_slow;
5602 get_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar)
5604 int n = mono_generic_param_num (param);
5607 if (n < FAST_CACHE_SIZE)
5608 return (is_mvar ? mvar_cache_fast : var_cache_fast) [n];
5609 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
5610 return ht ? g_hash_table_lookup (ht, GINT_TO_POINTER (n)) : NULL;
5614 set_anon_gparam_class (MonoGenericParam *param, gboolean is_mvar, MonoClass *klass)
5616 int n = mono_generic_param_num (param);
5619 if (n < FAST_CACHE_SIZE) {
5620 (is_mvar ? mvar_cache_fast : var_cache_fast) [n] = klass;
5623 ht = is_mvar ? mvar_cache_slow : var_cache_slow;
5625 ht = g_hash_table_new (NULL, NULL);
5627 mvar_cache_slow = ht;
5629 var_cache_slow = ht;
5632 g_hash_table_insert (ht, GINT_TO_POINTER (n), klass);
5636 * LOCKING: Acquires the loader lock.
5639 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
5641 MonoGenericContainer *container = mono_generic_param_owner (param);
5642 MonoGenericParamInfo *pinfo;
5645 mono_loader_lock ();
5648 pinfo = mono_generic_param_info (param);
5649 if (pinfo->pklass) {
5650 mono_loader_unlock ();
5651 return pinfo->pklass;
5657 klass = get_anon_gparam_class (param, is_mvar);
5659 mono_loader_unlock ();
5664 if (!image && container) {
5666 MonoMethod *method = container->owner.method;
5667 image = (method && method->klass) ? method->klass->image : NULL;
5669 MonoClass *klass = container->owner.klass;
5670 // FIXME: 'klass' should not be null
5671 // But, monodis creates GenericContainers without associating a owner to it
5672 image = klass ? klass->image : NULL;
5676 klass = make_generic_param_class (param, image, is_mvar, pinfo);
5678 mono_memory_barrier ();
5681 pinfo->pklass = klass;
5683 set_anon_gparam_class (param, is_mvar, klass);
5685 mono_loader_unlock ();
5687 /* FIXME: Should this go inside 'make_generic_param_klass'? */
5688 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
5694 mono_ptr_class_get (MonoType *type)
5697 MonoClass *el_class;
5701 el_class = mono_class_from_mono_type (type);
5702 image = el_class->image;
5704 mono_loader_lock ();
5706 if (!image->ptr_cache)
5707 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5709 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
5710 mono_loader_unlock ();
5713 result = mono_image_alloc0 (image, sizeof (MonoClass));
5715 classes_size += sizeof (MonoClass);
5717 result->parent = NULL; /* no parent for PTR types */
5718 result->name_space = el_class->name_space;
5719 name = g_strdup_printf ("%s*", el_class->name);
5720 result->name = mono_image_strdup (image, name);
5723 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5725 result->image = el_class->image;
5726 result->inited = TRUE;
5727 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
5728 /* Can pointers get boxed? */
5729 result->instance_size = sizeof (gpointer);
5730 result->cast_class = result->element_class = el_class;
5731 result->blittable = TRUE;
5733 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
5734 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
5735 result->this_arg.byref = TRUE;
5737 mono_class_setup_supertypes (result);
5739 g_hash_table_insert (image->ptr_cache, el_class, result);
5741 mono_loader_unlock ();
5743 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5749 mono_fnptr_class_get (MonoMethodSignature *sig)
5752 static GHashTable *ptr_hash = NULL;
5754 /* FIXME: These should be allocate from a mempool as well, but which one ? */
5756 mono_loader_lock ();
5759 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
5761 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
5762 mono_loader_unlock ();
5765 result = g_new0 (MonoClass, 1);
5767 result->parent = NULL; /* no parent for PTR types */
5768 result->name_space = "System";
5769 result->name = "MonoFNPtrFakeClass";
5771 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
5773 result->image = mono_defaults.corlib; /* need to fix... */
5774 result->inited = TRUE;
5775 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
5776 /* Can pointers get boxed? */
5777 result->instance_size = sizeof (gpointer);
5778 result->cast_class = result->element_class = result;
5779 result->blittable = TRUE;
5781 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
5782 result->this_arg.data.method = result->byval_arg.data.method = sig;
5783 result->this_arg.byref = TRUE;
5784 result->blittable = TRUE;
5786 mono_class_setup_supertypes (result);
5788 g_hash_table_insert (ptr_hash, sig, result);
5790 mono_loader_unlock ();
5792 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
5798 mono_class_from_mono_type (MonoType *type)
5800 switch (type->type) {
5801 case MONO_TYPE_OBJECT:
5802 return type->data.klass? type->data.klass: mono_defaults.object_class;
5803 case MONO_TYPE_VOID:
5804 return type->data.klass? type->data.klass: mono_defaults.void_class;
5805 case MONO_TYPE_BOOLEAN:
5806 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
5807 case MONO_TYPE_CHAR:
5808 return type->data.klass? type->data.klass: mono_defaults.char_class;
5810 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
5812 return type->data.klass? type->data.klass: mono_defaults.byte_class;
5814 return type->data.klass? type->data.klass: mono_defaults.int16_class;
5816 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
5818 return type->data.klass? type->data.klass: mono_defaults.int32_class;
5820 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
5822 return type->data.klass? type->data.klass: mono_defaults.int_class;
5824 return type->data.klass? type->data.klass: mono_defaults.uint_class;
5826 return type->data.klass? type->data.klass: mono_defaults.int64_class;
5828 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
5830 return type->data.klass? type->data.klass: mono_defaults.single_class;
5832 return type->data.klass? type->data.klass: mono_defaults.double_class;
5833 case MONO_TYPE_STRING:
5834 return type->data.klass? type->data.klass: mono_defaults.string_class;
5835 case MONO_TYPE_TYPEDBYREF:
5836 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
5837 case MONO_TYPE_ARRAY:
5838 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
5840 return mono_ptr_class_get (type->data.type);
5841 case MONO_TYPE_FNPTR:
5842 return mono_fnptr_class_get (type->data.method);
5843 case MONO_TYPE_SZARRAY:
5844 return mono_array_class_get (type->data.klass, 1);
5845 case MONO_TYPE_CLASS:
5846 case MONO_TYPE_VALUETYPE:
5847 return type->data.klass;
5848 case MONO_TYPE_GENERICINST:
5849 return mono_generic_class_get_class (type->data.generic_class);
5851 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
5852 case MONO_TYPE_MVAR:
5853 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
5855 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
5856 g_assert_not_reached ();
5863 * mono_type_retrieve_from_typespec
5864 * @image: context where the image is created
5865 * @type_spec: typespec token
5866 * @context: the generic context used to evaluate generic instantiations in
5869 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate, MonoError *error)
5871 MonoType *t = mono_type_create_from_typespec (image, type_spec);
5873 mono_error_init (error);
5874 *did_inflate = FALSE;
5877 char *name = mono_class_name_from_token (image, type_spec);
5878 char *assembly = mono_assembly_name_from_token (image, type_spec);
5879 mono_error_set_type_load_name (error, name, assembly, "Could not resolve typespec token %08x", type_spec);
5883 if (context && (context->class_inst || context->method_inst)) {
5884 MonoType *inflated = inflate_generic_type (NULL, t, context, error);
5886 if (!mono_error_ok (error))
5891 *did_inflate = TRUE;
5898 * mono_class_create_from_typespec
5899 * @image: context where the image is created
5900 * @type_spec: typespec token
5901 * @context: the generic context used to evaluate generic instantiations in
5904 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, MonoError *error)
5907 gboolean inflated = FALSE;
5908 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated, error);
5909 if (!mono_error_ok (error))
5911 ret = mono_class_from_mono_type (t);
5913 mono_metadata_free_type (t);
5918 * mono_bounded_array_class_get:
5919 * @element_class: element class
5920 * @rank: the dimension of the array class
5921 * @bounded: whenever the array has non-zero bounds
5923 * Returns: a class object describing the array with element type @element_type and
5927 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
5931 MonoClass *parent = NULL;
5932 GSList *list, *rootlist = NULL;
5935 gboolean corlib_type = FALSE;
5937 g_assert (rank <= 255);
5940 /* bounded only matters for one-dimensional arrays */
5943 image = eclass->image;
5945 if (rank == 1 && !bounded) {
5947 * This case is very frequent not just during compilation because of calls
5948 * from mono_class_from_mono_type (), mono_array_new (),
5949 * Array:CreateInstance (), etc, so use a separate cache + a separate lock.
5951 EnterCriticalSection (&image->szarray_cache_lock);
5952 if (!image->szarray_cache)
5953 image->szarray_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5954 class = g_hash_table_lookup (image->szarray_cache, eclass);
5955 LeaveCriticalSection (&image->szarray_cache_lock);
5959 mono_loader_lock ();
5961 mono_loader_lock ();
5963 if (!image->array_cache)
5964 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
5966 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
5967 for (; list; list = list->next) {
5969 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
5970 mono_loader_unlock ();
5977 /* for the building corlib use System.Array from it */
5978 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
5979 parent = mono_class_from_name (image, "System", "Array");
5982 parent = mono_defaults.array_class;
5983 if (!parent->inited)
5984 mono_class_init (parent);
5987 class = mono_image_alloc0 (image, sizeof (MonoClass));
5989 class->image = image;
5990 class->name_space = eclass->name_space;
5991 nsize = strlen (eclass->name);
5992 name = g_malloc (nsize + 2 + rank + 1);
5993 memcpy (name, eclass->name, nsize);
5996 memset (name + nsize + 1, ',', rank - 1);
5998 name [nsize + rank] = '*';
5999 name [nsize + rank + bounded] = ']';
6000 name [nsize + rank + bounded + 1] = 0;
6001 class->name = mono_image_strdup (image, name);
6004 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
6006 classes_size += sizeof (MonoClass);
6008 class->type_token = 0;
6009 /* all arrays are marked serializable and sealed, bug #42779 */
6010 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED | TYPE_ATTRIBUTE_PUBLIC;
6011 class->parent = parent;
6012 class->instance_size = mono_class_instance_size (class->parent);
6014 if (eclass->byval_arg.type == MONO_TYPE_TYPEDBYREF || eclass->byval_arg.type == MONO_TYPE_VOID) {
6015 /*Arrays of those two types are invalid.*/
6016 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
6017 } else if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
6018 if (!eclass->ref_info_handle || eclass->wastypebuilder) {
6019 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
6020 g_assert (eclass->ref_info_handle && !eclass->wastypebuilder);
6022 /* element_size -1 is ok as this is not an instantitable type*/
6023 class->sizes.element_size = -1;
6025 class->sizes.element_size = mono_class_array_element_size (eclass);
6027 mono_class_setup_supertypes (class);
6029 if (eclass->generic_class)
6030 mono_class_init (eclass);
6031 if (!eclass->size_inited)
6032 mono_class_setup_fields (eclass);
6033 if (eclass->exception_type) /*FIXME we fail the array type, but we have to let other fields be set.*/
6034 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
6036 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
6040 if (eclass->enumtype)
6041 class->cast_class = eclass->element_class;
6043 class->cast_class = eclass;
6045 switch (class->cast_class->byval_arg.type) {
6047 class->cast_class = mono_defaults.byte_class;
6050 class->cast_class = mono_defaults.int16_class;
6053 #if SIZEOF_VOID_P == 4
6057 class->cast_class = mono_defaults.int32_class;
6060 #if SIZEOF_VOID_P == 8
6064 class->cast_class = mono_defaults.int64_class;
6068 class->element_class = eclass;
6070 if ((rank > 1) || bounded) {
6071 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
6072 class->byval_arg.type = MONO_TYPE_ARRAY;
6073 class->byval_arg.data.array = at;
6074 at->eklass = eclass;
6076 /* FIXME: complete.... */
6078 class->byval_arg.type = MONO_TYPE_SZARRAY;
6079 class->byval_arg.data.klass = eclass;
6081 class->this_arg = class->byval_arg;
6082 class->this_arg.byref = 1;
6087 class->generic_container = eclass->generic_container;
6089 if (rank == 1 && !bounded) {
6090 MonoClass *prev_class;
6092 EnterCriticalSection (&image->szarray_cache_lock);
6093 prev_class = g_hash_table_lookup (image->szarray_cache, eclass);
6095 /* Someone got in before us */
6098 g_hash_table_insert (image->szarray_cache, eclass, class);
6099 LeaveCriticalSection (&image->szarray_cache_lock);
6101 list = g_slist_append (rootlist, class);
6102 g_hash_table_insert (image->array_cache, eclass, list);
6105 mono_loader_unlock ();
6107 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
6113 * mono_array_class_get:
6114 * @element_class: element class
6115 * @rank: the dimension of the array class
6117 * Returns: a class object describing the array with element type @element_type and
6121 mono_array_class_get (MonoClass *eclass, guint32 rank)
6123 return mono_bounded_array_class_get (eclass, rank, FALSE);
6127 * mono_class_instance_size:
6130 * Returns: the size of an object instance
6133 mono_class_instance_size (MonoClass *klass)
6135 if (!klass->size_inited)
6136 mono_class_init (klass);
6138 return klass->instance_size;
6142 * mono_class_min_align:
6145 * Returns: minimm alignment requirements
6148 mono_class_min_align (MonoClass *klass)
6150 if (!klass->size_inited)
6151 mono_class_init (klass);
6153 return klass->min_align;
6157 * mono_class_value_size:
6160 * This function is used for value types, and return the
6161 * space and the alignment to store that kind of value object.
6163 * Returns: the size of a value of kind @klass
6166 mono_class_value_size (MonoClass *klass, guint32 *align)
6170 /* fixme: check disable, because we still have external revereces to
6171 * mscorlib and Dummy Objects
6173 /*g_assert (klass->valuetype);*/
6175 size = mono_class_instance_size (klass) - sizeof (MonoObject);
6178 *align = klass->min_align;
6184 * mono_class_data_size:
6187 * Returns: the size of the static class data
6190 mono_class_data_size (MonoClass *klass)
6193 mono_class_init (klass);
6195 /* in arrays, sizes.class_size is unioned with element_size
6196 * and arrays have no static fields
6200 return klass->sizes.class_size;
6204 * Auxiliary routine to mono_class_get_field
6206 * Takes a field index instead of a field token.
6208 static MonoClassField *
6209 mono_class_get_field_idx (MonoClass *class, int idx)
6211 mono_class_setup_fields_locking (class);
6212 if (class->exception_type)
6216 if (class->image->uncompressed_metadata) {
6218 * class->field.first points to the FieldPtr table, while idx points into the
6219 * Field table, so we have to do a search.
6221 /*FIXME this is broken for types with multiple fields with the same name.*/
6222 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
6225 for (i = 0; i < class->field.count; ++i)
6226 if (mono_field_get_name (&class->fields [i]) == name)
6227 return &class->fields [i];
6228 g_assert_not_reached ();
6230 if (class->field.count) {
6231 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
6232 return &class->fields [idx - class->field.first];
6236 class = class->parent;
6242 * mono_class_get_field:
6243 * @class: the class to lookup the field.
6244 * @field_token: the field token
6246 * Returns: A MonoClassField representing the type and offset of
6247 * the field, or a NULL value if the field does not belong to this
6251 mono_class_get_field (MonoClass *class, guint32 field_token)
6253 int idx = mono_metadata_token_index (field_token);
6255 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
6257 return mono_class_get_field_idx (class, idx - 1);
6261 * mono_class_get_field_from_name:
6262 * @klass: the class to lookup the field.
6263 * @name: the field name
6265 * Search the class @klass and it's parents for a field with the name @name.
6267 * Returns: the MonoClassField pointer of the named field or NULL
6270 mono_class_get_field_from_name (MonoClass *klass, const char *name)
6272 return mono_class_get_field_from_name_full (klass, name, NULL);
6276 * mono_class_get_field_from_name_full:
6277 * @klass: the class to lookup the field.
6278 * @name: the field name
6279 * @type: the type of the fields. This optional.
6281 * Search the class @klass and it's parents for a field with the name @name and type @type.
6283 * If @klass is an inflated generic type, the type comparison is done with the equivalent field
6284 * of its generic type definition.
6286 * Returns: the MonoClassField pointer of the named field or NULL
6289 mono_class_get_field_from_name_full (MonoClass *klass, const char *name, MonoType *type)
6293 mono_class_setup_fields_locking (klass);
6294 if (klass->exception_type)
6298 for (i = 0; i < klass->field.count; ++i) {
6299 MonoClassField *field = &klass->fields [i];
6301 if (strcmp (name, mono_field_get_name (field)) != 0)
6305 MonoType *field_type = mono_metadata_get_corresponding_field_from_generic_type_definition (field)->type;
6306 if (!mono_metadata_type_equal_full (type, field_type, TRUE))
6311 klass = klass->parent;
6317 * mono_class_get_field_token:
6318 * @field: the field we need the token of
6320 * Get the token of a field. Note that the tokesn is only valid for the image
6321 * the field was loaded from. Don't use this function for fields in dynamic types.
6323 * Returns: the token representing the field in the image it was loaded from.
6326 mono_class_get_field_token (MonoClassField *field)
6328 MonoClass *klass = field->parent;
6331 mono_class_setup_fields_locking (klass);
6332 if (klass->exception_type)
6336 for (i = 0; i < klass->field.count; ++i) {
6337 if (&klass->fields [i] == field) {
6338 int idx = klass->field.first + i + 1;
6340 if (klass->image->uncompressed_metadata)
6341 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
6342 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
6345 klass = klass->parent;
6348 g_assert_not_reached ();
6353 mono_field_get_index (MonoClassField *field)
6355 int index = field - field->parent->fields;
6357 g_assert (index >= 0 && index < field->parent->field.count);
6363 * mono_class_get_field_default_value:
6365 * Return the default value of the field as a pointer into the metadata blob.
6368 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
6371 guint32 constant_cols [MONO_CONSTANT_SIZE];
6373 MonoClass *klass = field->parent;
6375 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
6377 if (!klass->ext || !klass->ext->field_def_values) {
6378 mono_loader_lock ();
6379 mono_class_alloc_ext (klass);
6380 if (!klass->ext->field_def_values)
6381 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
6382 mono_loader_unlock ();
6385 field_index = mono_field_get_index (field);
6387 if (!klass->ext->field_def_values [field_index].data) {
6388 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
6390 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
6392 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6393 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
6394 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
6397 *def_type = klass->ext->field_def_values [field_index].def_type;
6398 return klass->ext->field_def_values [field_index].data;
6402 mono_property_get_index (MonoProperty *prop)
6404 int index = prop - prop->parent->ext->properties;
6406 g_assert (index >= 0 && index < prop->parent->ext->property.count);
6412 * mono_class_get_property_default_value:
6414 * Return the default value of the field as a pointer into the metadata blob.
6417 mono_class_get_property_default_value (MonoProperty *property, MonoTypeEnum *def_type)
6420 guint32 constant_cols [MONO_CONSTANT_SIZE];
6421 MonoClass *klass = property->parent;
6423 g_assert (property->attrs & PROPERTY_ATTRIBUTE_HAS_DEFAULT);
6425 * We don't cache here because it is not used by C# so it's quite rare, but
6426 * we still do the lookup in klass->ext because that is where the data
6427 * is stored for dynamic assemblies.
6430 if (klass->image->dynamic) {
6431 int prop_index = mono_property_get_index (property);
6432 if (klass->ext->prop_def_values && klass->ext->prop_def_values [prop_index].data) {
6433 *def_type = klass->ext->prop_def_values [prop_index].def_type;
6434 return klass->ext->prop_def_values [prop_index].data;
6438 cindex = mono_metadata_get_constant_index (klass->image, mono_class_get_property_token (property), 0);
6442 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
6443 *def_type = constant_cols [MONO_CONSTANT_TYPE];
6444 return (gpointer)mono_metadata_blob_heap (klass->image, constant_cols [MONO_CONSTANT_VALUE]);
6448 mono_class_get_event_token (MonoEvent *event)
6450 MonoClass *klass = event->parent;
6455 for (i = 0; i < klass->ext->event.count; ++i) {
6456 if (&klass->ext->events [i] == event)
6457 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
6460 klass = klass->parent;
6463 g_assert_not_reached ();
6468 mono_class_get_property_from_name (MonoClass *klass, const char *name)
6472 gpointer iter = NULL;
6473 while ((p = mono_class_get_properties (klass, &iter))) {
6474 if (! strcmp (name, p->name))
6477 klass = klass->parent;
6483 mono_class_get_property_token (MonoProperty *prop)
6485 MonoClass *klass = prop->parent;
6489 gpointer iter = NULL;
6490 while ((p = mono_class_get_properties (klass, &iter))) {
6491 if (&klass->ext->properties [i] == prop)
6492 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
6496 klass = klass->parent;
6499 g_assert_not_reached ();
6504 mono_class_name_from_token (MonoImage *image, guint32 type_token)
6506 const char *name, *nspace;
6508 return g_strdup_printf ("DynamicType 0x%08x", type_token);
6510 switch (type_token & 0xff000000){
6511 case MONO_TOKEN_TYPE_DEF: {
6512 guint32 cols [MONO_TYPEDEF_SIZE];
6513 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
6514 guint tidx = mono_metadata_token_index (type_token);
6516 if (tidx > tt->rows)
6517 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6519 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
6520 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6521 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6522 if (strlen (nspace) == 0)
6523 return g_strdup_printf ("%s", name);
6525 return g_strdup_printf ("%s.%s", nspace, name);
6528 case MONO_TOKEN_TYPE_REF: {
6530 guint32 cols [MONO_TYPEREF_SIZE];
6531 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6532 guint tidx = mono_metadata_token_index (type_token);
6535 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6537 if (!mono_verifier_verify_typeref_row (image, tidx - 1, &error)) {
6538 char *msg = g_strdup_printf ("Invalid type token 0x%08x due to '%s'", type_token, mono_error_get_message (&error));
6539 mono_error_cleanup (&error);
6543 mono_metadata_decode_row (t, tidx-1, cols, MONO_TYPEREF_SIZE);
6544 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
6545 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
6546 if (strlen (nspace) == 0)
6547 return g_strdup_printf ("%s", name);
6549 return g_strdup_printf ("%s.%s", nspace, name);
6552 case MONO_TOKEN_TYPE_SPEC:
6553 return g_strdup_printf ("Typespec 0x%08x", type_token);
6555 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6560 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
6563 return g_strdup_printf ("DynamicAssembly %s", image->name);
6565 switch (type_token & 0xff000000){
6566 case MONO_TOKEN_TYPE_DEF:
6567 if (image->assembly)
6568 return mono_stringify_assembly_name (&image->assembly->aname);
6569 else if (image->assembly_name)
6570 return g_strdup (image->assembly_name);
6571 return g_strdup_printf ("%s", image->name ? image->name : "[Could not resolve assembly name");
6572 case MONO_TOKEN_TYPE_REF: {
6574 MonoAssemblyName aname;
6575 guint32 cols [MONO_TYPEREF_SIZE];
6576 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
6577 guint32 idx = mono_metadata_token_index (type_token);
6580 return g_strdup_printf ("Invalid type token 0x%08x", type_token);
6582 if (!mono_verifier_verify_typeref_row (image, idx - 1, &error)) {
6583 char *msg = g_strdup_printf ("Invalid type token 0x%08x due to '%s'", type_token, mono_error_get_message (&error));
6584 mono_error_cleanup (&error);
6587 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPEREF_SIZE);
6589 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
6590 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
6591 case MONO_RESOLTION_SCOPE_MODULE:
6593 return g_strdup ("");
6594 case MONO_RESOLTION_SCOPE_MODULEREF:
6596 return g_strdup ("");
6597 case MONO_RESOLTION_SCOPE_TYPEREF:
6599 return g_strdup ("");
6600 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
6601 mono_assembly_get_assemblyref (image, idx - 1, &aname);
6602 return mono_stringify_assembly_name (&aname);
6604 g_assert_not_reached ();
6608 case MONO_TOKEN_TYPE_SPEC:
6610 return g_strdup ("");
6612 g_assert_not_reached ();
6619 * mono_class_get_full:
6620 * @image: the image where the class resides
6621 * @type_token: the token for the class
6622 * @context: the generic context used to evaluate generic instantiations in
6624 * Returns: the MonoClass that represents @type_token in @image
6627 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6630 MonoClass *class = NULL;
6632 if (image->dynamic) {
6633 int table = mono_metadata_token_table (type_token);
6635 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
6636 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
6639 return mono_lookup_dynamic_token (image, type_token, context);
6642 switch (type_token & 0xff000000){
6643 case MONO_TOKEN_TYPE_DEF:
6644 class = mono_class_create_from_typedef (image, type_token);
6646 case MONO_TOKEN_TYPE_REF:
6647 class = mono_class_from_typeref (image, type_token);
6649 case MONO_TOKEN_TYPE_SPEC:
6650 class = mono_class_create_from_typespec (image, type_token, context, &error);
6651 if (!mono_error_ok (&error)) {
6652 /*FIXME don't swallow the error message*/
6653 mono_error_cleanup (&error);
6657 g_warning ("unknown token type %x", type_token & 0xff000000);
6658 g_assert_not_reached ();
6662 char *name = mono_class_name_from_token (image, type_token);
6663 char *assembly = mono_assembly_name_from_token (image, type_token);
6664 mono_loader_set_error_type_load (name, assembly);
6674 * mono_type_get_full:
6675 * @image: the image where the type resides
6676 * @type_token: the token for the type
6677 * @context: the generic context used to evaluate generic instantiations in
6679 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
6681 * Returns: the MonoType that represents @type_token in @image
6684 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
6687 MonoType *type = NULL;
6688 gboolean inflated = FALSE;
6690 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
6692 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
6694 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
6695 MonoClass *class = mono_class_get_full (image, type_token, context);
6696 return class ? mono_class_get_type (class) : NULL;
6699 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated, &error);
6701 if (!mono_error_ok (&error)) {
6702 /*FIXME don't swalloc the error message.*/
6703 char *name = mono_class_name_from_token (image, type_token);
6704 char *assembly = mono_assembly_name_from_token (image, type_token);
6706 g_warning ("Error loading type %s from %s due to %s", name, assembly, mono_error_get_message (&error));
6708 mono_error_cleanup (&error);
6709 mono_loader_set_error_type_load (name, assembly);
6714 MonoType *tmp = type;
6715 type = mono_class_get_type (mono_class_from_mono_type (type));
6716 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
6717 * A MonoClass::byval_arg of a generic type definion has type CLASS.
6718 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
6720 * The long term solution is to chaise this places and make then set MonoType::type correctly.
6722 if (type->type != tmp->type)
6725 mono_metadata_free_type (tmp);
6732 mono_class_get (MonoImage *image, guint32 type_token)
6734 return mono_class_get_full (image, type_token, NULL);
6738 * mono_image_init_name_cache:
6740 * Initializes the class name cache stored in image->name_cache.
6742 * LOCKING: Acquires the corresponding image lock.
6745 mono_image_init_name_cache (MonoImage *image)
6747 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
6748 guint32 cols [MONO_TYPEDEF_SIZE];
6751 guint32 i, visib, nspace_index;
6752 GHashTable *name_cache2, *nspace_table;
6754 mono_image_lock (image);
6756 if (image->name_cache) {
6757 mono_image_unlock (image);
6761 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
6763 if (image->dynamic) {
6764 mono_image_unlock (image);
6768 /* Temporary hash table to avoid lookups in the nspace_table */
6769 name_cache2 = g_hash_table_new (NULL, NULL);
6771 for (i = 1; i <= t->rows; ++i) {
6772 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
6773 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
6775 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6776 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6778 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
6780 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6781 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6783 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
6784 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6785 if (!nspace_table) {
6786 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6787 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6788 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6791 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
6794 /* Load type names from EXPORTEDTYPES table */
6796 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
6797 guint32 cols [MONO_EXP_TYPE_SIZE];
6800 for (i = 0; i < t->rows; ++i) {
6801 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
6802 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
6803 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
6805 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
6806 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
6807 if (!nspace_table) {
6808 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6809 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
6810 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
6813 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
6817 g_hash_table_destroy (name_cache2);
6818 mono_image_unlock (image);
6821 /*FIXME Only dynamic assemblies should allow this operation.*/
6823 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
6824 const char *name, guint32 index)
6826 GHashTable *nspace_table;
6827 GHashTable *name_cache;
6830 mono_image_lock (image);
6832 if (!image->name_cache)
6833 mono_image_init_name_cache (image);
6835 name_cache = image->name_cache;
6836 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
6837 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
6838 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
6841 if ((old_index = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, (char*) name))))
6842 g_error ("overrwritting old token %x on image %s for type %s::%s", old_index, image->name, nspace, name);
6844 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
6846 mono_image_unlock (image);
6855 find_nocase (gpointer key, gpointer value, gpointer user_data)
6857 char *name = (char*)key;
6858 FindUserData *data = (FindUserData*)user_data;
6860 if (!data->value && (mono_utf8_strcasecmp (name, (char*)data->key) == 0))
6861 data->value = value;
6865 * mono_class_from_name_case:
6866 * @image: The MonoImage where the type is looked up in
6867 * @name_space: the type namespace
6868 * @name: the type short name.
6870 * Obtains a MonoClass with a given namespace and a given name which
6871 * is located in the given MonoImage. The namespace and name
6872 * lookups are case insensitive.
6875 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
6877 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
6878 guint32 cols [MONO_TYPEDEF_SIZE];
6883 if (image->dynamic) {
6885 FindUserData user_data;
6887 mono_image_lock (image);
6889 if (!image->name_cache)
6890 mono_image_init_name_cache (image);
6892 user_data.key = name_space;
6893 user_data.value = NULL;
6894 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
6896 if (user_data.value) {
6897 GHashTable *nspace_table = (GHashTable*)user_data.value;
6899 user_data.key = name;
6900 user_data.value = NULL;
6902 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
6904 if (user_data.value)
6905 token = GPOINTER_TO_UINT (user_data.value);
6908 mono_image_unlock (image);
6911 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
6917 /* add a cache if needed */
6918 for (i = 1; i <= t->rows; ++i) {
6919 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
6920 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
6922 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6923 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6925 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
6927 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
6928 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
6929 if (mono_utf8_strcasecmp (n, name) == 0 && mono_utf8_strcasecmp (nspace, name_space) == 0)
6930 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
6936 return_nested_in (MonoClass *class, char *nested)
6939 char *s = strchr (nested, '/');
6940 gpointer iter = NULL;
6947 while ((found = mono_class_get_nested_types (class, &iter))) {
6948 if (strcmp (found->name, nested) == 0) {
6950 return return_nested_in (found, s);
6958 search_modules (MonoImage *image, const char *name_space, const char *name)
6960 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
6961 MonoImage *file_image;
6966 * The EXPORTEDTYPES table only contains public types, so have to search the
6968 * Note: image->modules contains the contents of the MODULEREF table, while
6969 * the real module list is in the FILE table.
6971 for (i = 0; i < file_table->rows; i++) {
6972 guint32 cols [MONO_FILE_SIZE];
6973 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
6974 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
6977 file_image = mono_image_load_file_for_image (image, i + 1);
6979 class = mono_class_from_name (file_image, name_space, name);
6989 * mono_class_from_name:
6990 * @image: The MonoImage where the type is looked up in
6991 * @name_space: the type namespace
6992 * @name: the type short name.
6994 * Obtains a MonoClass with a given namespace and a given name which
6995 * is located in the given MonoImage.
6998 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
7000 GHashTable *nspace_table;
7001 MonoImage *loaded_image;
7008 if ((nested = strchr (name, '/'))) {
7009 int pos = nested - name;
7010 int len = strlen (name);
7013 memcpy (buf, name, len + 1);
7015 nested = buf + pos + 1;
7019 if (get_class_from_name) {
7020 gboolean res = get_class_from_name (image, name_space, name, &class);
7023 class = search_modules (image, name_space, name);
7025 return class ? return_nested_in (class, nested) : NULL;
7031 mono_image_lock (image);
7033 if (!image->name_cache)
7034 mono_image_init_name_cache (image);
7036 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
7039 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
7041 mono_image_unlock (image);
7043 if (!token && image->dynamic && image->modules) {
7044 /* Search modules as well */
7045 for (i = 0; i < image->module_count; ++i) {
7046 MonoImage *module = image->modules [i];
7048 class = mono_class_from_name (module, name_space, name);
7055 class = search_modules (image, name_space, name);
7063 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
7064 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
7065 guint32 cols [MONO_EXP_TYPE_SIZE];
7068 idx = mono_metadata_token_index (token);
7070 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
7072 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
7073 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
7074 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
7077 class = mono_class_from_name (loaded_image, name_space, name);
7079 return return_nested_in (class, nested);
7081 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
7082 guint32 assembly_idx;
7084 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
7086 mono_assembly_load_reference (image, assembly_idx - 1);
7087 g_assert (image->references [assembly_idx - 1]);
7088 if (image->references [assembly_idx - 1] == (gpointer)-1)
7091 /* FIXME: Cycle detection */
7092 return mono_class_from_name (image->references [assembly_idx - 1]->image, name_space, name);
7094 g_error ("not yet implemented");
7098 token = MONO_TOKEN_TYPE_DEF | token;
7100 class = mono_class_get (image, token);
7102 return return_nested_in (class, nested);
7106 /*FIXME test for interfaces with variant generic arguments*/
7108 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
7109 gboolean check_interfaces)
7111 g_assert (klassc->idepth > 0);
7112 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
7113 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
7115 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
7118 for (i = 0; i < klass->interface_count; i ++) {
7119 MonoClass *ic = klass->interfaces [i];
7124 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
7129 * MS.NET thinks interfaces are a subclass of Object, so we think it as
7132 if (klassc == mono_defaults.object_class)
7139 mono_class_has_variant_generic_params (MonoClass *klass)
7142 MonoGenericContainer *container;
7144 if (!klass->generic_class)
7147 container = klass->generic_class->container_class->generic_container;
7149 for (i = 0; i < container->type_argc; ++i)
7150 if (mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
7157 * @container the generic container from the GTD
7158 * @klass: the class to be assigned to
7159 * @oklass: the source class
7161 * Both klass and oklass must be instances of the same generic interface.
7162 * Return true if @klass can be assigned to a @klass variable
7165 mono_class_is_variant_compatible (MonoClass *klass, MonoClass *oklass)
7168 MonoType **klass_argv, **oklass_argv;
7169 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7170 MonoGenericContainer *container = klass_gtd->generic_container;
7172 /*Viable candidates are instances of the same generic interface*/
7173 if (mono_class_get_generic_type_definition (oklass) != klass_gtd)
7176 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7177 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7179 for (j = 0; j < container->type_argc; ++j) {
7180 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7181 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7183 if (param1_class->valuetype != param2_class->valuetype)
7187 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7188 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7190 if (param1_class != param2_class) {
7191 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7192 if (!mono_class_is_assignable_from (param1_class, param2_class))
7194 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7195 if (!mono_class_is_assignable_from (param2_class, param1_class))
7205 * mono_class_is_assignable_from:
7206 * @klass: the class to be assigned to
7207 * @oklass: the source class
7209 * Return: true if an instance of object oklass can be assigned to an
7210 * instance of object @klass
7213 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
7215 /*FIXME this will cause a lot of irrelevant stuff to be loaded.*/
7217 mono_class_init (klass);
7219 if (!oklass->inited)
7220 mono_class_init (oklass);
7222 if (klass->exception_type || oklass->exception_type)
7225 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
7226 return klass == oklass;
7228 if (MONO_CLASS_IS_INTERFACE (klass)) {
7229 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
7232 /* interface_offsets might not be set for dynamic classes */
7233 if (oklass->ref_info_handle && !oklass->interface_bitmap)
7235 * oklass might be a generic type parameter but they have
7236 * interface_offsets set.
7238 return mono_reflection_call_is_assignable_to (oklass, klass);
7239 if (!oklass->interface_bitmap)
7240 /* Happens with generic instances of not-yet created dynamic types */
7242 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
7245 if (mono_class_has_variant_generic_params (klass)) {
7248 mono_class_setup_interfaces (oklass, &error);
7249 if (!mono_error_ok (&error)) {
7250 mono_error_cleanup (&error);
7254 /*klass is a generic variant interface, We need to extract from oklass a list of ifaces which are viable candidates.*/
7255 for (i = 0; i < oklass->interface_offsets_count; ++i) {
7256 MonoClass *iface = oklass->interfaces_packed [i];
7258 if (mono_class_is_variant_compatible (klass, iface))
7263 } else if (klass->delegate) {
7264 if (mono_class_has_variant_generic_params (klass) && mono_class_is_variant_compatible (klass, oklass))
7266 }else if (klass->rank) {
7267 MonoClass *eclass, *eoclass;
7269 if (oklass->rank != klass->rank)
7272 /* vectors vs. one dimensional arrays */
7273 if (oklass->byval_arg.type != klass->byval_arg.type)
7276 eclass = klass->cast_class;
7277 eoclass = oklass->cast_class;
7280 * a is b does not imply a[] is b[] when a is a valuetype, and
7281 * b is a reference type.
7284 if (eoclass->valuetype) {
7285 if ((eclass == mono_defaults.enum_class) ||
7286 (eclass == mono_defaults.enum_class->parent) ||
7287 (eclass == mono_defaults.object_class))
7291 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7292 } else if (mono_class_is_nullable (klass)) {
7293 if (mono_class_is_nullable (oklass))
7294 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
7296 return mono_class_is_assignable_from (klass->cast_class, oklass);
7297 } else if (klass == mono_defaults.object_class)
7300 return mono_class_has_parent (oklass, klass);
7303 /*Check if @oklass is variant compatible with @klass.*/
7305 mono_class_is_variant_compatible_slow (MonoClass *klass, MonoClass *oklass)
7308 MonoType **klass_argv, **oklass_argv;
7309 MonoClass *klass_gtd = mono_class_get_generic_type_definition (klass);
7310 MonoGenericContainer *container = klass_gtd->generic_container;
7312 /*Viable candidates are instances of the same generic interface*/
7313 if (mono_class_get_generic_type_definition (oklass) != klass_gtd)
7316 klass_argv = &klass->generic_class->context.class_inst->type_argv [0];
7317 oklass_argv = &oklass->generic_class->context.class_inst->type_argv [0];
7319 for (j = 0; j < container->type_argc; ++j) {
7320 MonoClass *param1_class = mono_class_from_mono_type (klass_argv [j]);
7321 MonoClass *param2_class = mono_class_from_mono_type (oklass_argv [j]);
7323 if (param1_class->valuetype != param2_class->valuetype)
7327 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
7328 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
7330 if (param1_class != param2_class) {
7331 if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_VARIANT) {
7332 if (!mono_class_is_assignable_from_slow (param1_class, param2_class))
7334 } else if (mono_generic_container_get_param_info (container, j)->flags & MONO_GEN_PARAM_COVARIANT) {
7335 if (!mono_class_is_assignable_from_slow (param2_class, param1_class))
7343 /*Check if @candidate implements the interface @target*/
7345 mono_class_implement_interface_slow (MonoClass *target, MonoClass *candidate)
7349 gboolean is_variant = mono_class_has_variant_generic_params (target);
7351 if (is_variant && MONO_CLASS_IS_INTERFACE (candidate)) {
7352 if (mono_class_is_variant_compatible_slow (target, candidate))
7357 if (candidate == target)
7360 /*A TypeBuilder can have more interfaces on tb->interfaces than on candidate->interfaces*/
7361 if (candidate->image->dynamic && !candidate->wastypebuilder) {
7362 MonoReflectionTypeBuilder *tb = mono_class_get_ref_info (candidate);
7364 if (tb && tb->interfaces) {
7365 for (j = mono_array_length (tb->interfaces) - 1; j >= 0; --j) {
7366 MonoReflectionType *iface = mono_array_get (tb->interfaces, MonoReflectionType*, j);
7367 MonoClass *iface_class = mono_class_from_mono_type (iface->type);
7368 if (iface_class == target)
7370 if (is_variant && mono_class_is_variant_compatible_slow (target, iface_class))
7372 if (mono_class_implement_interface_slow (target, iface_class))
7377 /*setup_interfaces don't mono_class_init anything*/
7378 mono_class_setup_interfaces (candidate, &error);
7379 if (!mono_error_ok (&error)) {
7380 mono_error_cleanup (&error);
7384 for (i = 0; i < candidate->interface_count; ++i) {
7385 if (candidate->interfaces [i] == target)
7388 if (is_variant && mono_class_is_variant_compatible_slow (target, candidate->interfaces [i]))
7391 if (mono_class_implement_interface_slow (target, candidate->interfaces [i]))
7395 candidate = candidate->parent;
7396 } while (candidate);
7402 * Check if @oklass can be assigned to @klass.
7403 * This function does the same as mono_class_is_assignable_from but is safe to be used from mono_class_init context.
7406 mono_class_is_assignable_from_slow (MonoClass *target, MonoClass *candidate)
7408 if (candidate == target)
7410 if (target == mono_defaults.object_class)
7413 /*setup_supertypes don't mono_class_init anything */
7414 mono_class_setup_supertypes (candidate);
7415 mono_class_setup_supertypes (target);
7417 if (mono_class_has_parent (candidate, target))
7420 /*If target is not an interface there is no need to check them.*/
7421 if (MONO_CLASS_IS_INTERFACE (target))
7422 return mono_class_implement_interface_slow (target, candidate);
7424 if (target->delegate && mono_class_has_variant_generic_params (target))
7425 return mono_class_is_variant_compatible (target, candidate);
7427 /*FIXME properly handle nullables and arrays */
7433 * mono_class_get_cctor:
7434 * @klass: A MonoClass pointer
7436 * Returns: the static constructor of @klass if it exists, NULL otherwise.
7439 mono_class_get_cctor (MonoClass *klass)
7441 MonoCachedClassInfo cached_info;
7443 if (klass->image->dynamic) {
7445 * has_cctor is not set for these classes because mono_class_init () is
7448 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7451 if (!klass->has_cctor)
7454 if (mono_class_get_cached_class_info (klass, &cached_info))
7455 return mono_get_method (klass->image, cached_info.cctor_token, klass);
7457 if (klass->generic_class && !klass->methods)
7458 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
7460 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
7464 * mono_class_get_finalizer:
7465 * @klass: The MonoClass pointer
7467 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
7470 mono_class_get_finalizer (MonoClass *klass)
7472 MonoCachedClassInfo cached_info;
7475 mono_class_init (klass);
7476 if (!klass->has_finalize)
7479 if (mono_class_get_cached_class_info (klass, &cached_info))
7480 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
7482 mono_class_setup_vtable (klass);
7483 return klass->vtable [finalize_slot];
7488 * mono_class_needs_cctor_run:
7489 * @klass: the MonoClass pointer
7490 * @caller: a MonoMethod describing the caller
7492 * Determines whenever the class has a static constructor and whenever it
7493 * needs to be called when executing CALLER.
7496 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
7500 method = mono_class_get_cctor (klass);
7502 return (method == caller) ? FALSE : TRUE;
7508 * mono_class_array_element_size:
7511 * Returns: the number of bytes an element of type @klass
7512 * uses when stored into an array.
7515 mono_class_array_element_size (MonoClass *klass)
7517 MonoType *type = &klass->byval_arg;
7520 switch (type->type) {
7523 case MONO_TYPE_BOOLEAN:
7527 case MONO_TYPE_CHAR:
7536 case MONO_TYPE_CLASS:
7537 case MONO_TYPE_STRING:
7538 case MONO_TYPE_OBJECT:
7539 case MONO_TYPE_SZARRAY:
7540 case MONO_TYPE_ARRAY:
7542 case MONO_TYPE_MVAR:
7543 return sizeof (gpointer);
7548 case MONO_TYPE_VALUETYPE:
7549 if (type->data.klass->enumtype) {
7550 type = mono_class_enum_basetype (type->data.klass);
7551 klass = klass->element_class;
7554 return mono_class_instance_size (klass) - sizeof (MonoObject);
7555 case MONO_TYPE_GENERICINST:
7556 type = &type->data.generic_class->container_class->byval_arg;
7559 case MONO_TYPE_VOID:
7563 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
7569 * mono_array_element_size:
7570 * @ac: pointer to a #MonoArrayClass
7572 * Returns: the size of single array element.
7575 mono_array_element_size (MonoClass *ac)
7577 g_assert (ac->rank);
7578 return ac->sizes.element_size;
7582 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
7583 MonoGenericContext *context)
7585 if (image->dynamic) {
7586 MonoClass *tmp_handle_class;
7587 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
7589 g_assert (tmp_handle_class);
7591 *handle_class = tmp_handle_class;
7593 if (tmp_handle_class == mono_defaults.typehandle_class)
7594 return &((MonoClass*)obj)->byval_arg;
7599 switch (token & 0xff000000) {
7600 case MONO_TOKEN_TYPE_DEF:
7601 case MONO_TOKEN_TYPE_REF:
7602 case MONO_TOKEN_TYPE_SPEC: {
7605 *handle_class = mono_defaults.typehandle_class;
7606 type = mono_type_get_full (image, token, context);
7609 mono_class_init (mono_class_from_mono_type (type));
7610 /* We return a MonoType* as handle */
7613 case MONO_TOKEN_FIELD_DEF: {
7615 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
7619 *handle_class = mono_defaults.fieldhandle_class;
7620 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
7623 mono_class_init (class);
7624 return mono_class_get_field (class, token);
7626 case MONO_TOKEN_METHOD_DEF:
7627 case MONO_TOKEN_METHOD_SPEC: {
7629 meth = mono_get_method_full (image, token, NULL, context);
7631 *handle_class = mono_defaults.methodhandle_class;
7634 case MONO_TOKEN_MEMBER_REF: {
7635 guint32 cols [MONO_MEMBERREF_SIZE];
7637 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
7638 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
7639 mono_metadata_decode_blob_size (sig, &sig);
7640 if (*sig == 0x6) { /* it's a field */
7642 MonoClassField *field;
7643 field = mono_field_from_token (image, token, &klass, context);
7645 *handle_class = mono_defaults.fieldhandle_class;
7649 meth = mono_get_method_full (image, token, NULL, context);
7651 *handle_class = mono_defaults.methodhandle_class;
7656 g_warning ("Unknown token 0x%08x in ldtoken", token);
7663 * This function might need to call runtime functions so it can't be part
7664 * of the metadata library.
7666 static MonoLookupDynamicToken lookup_dynamic = NULL;
7669 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
7671 lookup_dynamic = func;
7675 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
7677 MonoClass *handle_class;
7679 return lookup_dynamic (image, token, TRUE, &handle_class, context);
7683 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
7685 return lookup_dynamic (image, token, valid_token, handle_class, context);
7688 static MonoGetCachedClassInfo get_cached_class_info = NULL;
7691 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
7693 get_cached_class_info = func;
7697 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
7699 if (!get_cached_class_info)
7702 return get_cached_class_info (klass, res);
7706 mono_install_get_class_from_name (MonoGetClassFromName func)
7708 get_class_from_name = func;
7712 mono_class_get_image (MonoClass *klass)
7714 return klass->image;
7718 * mono_class_get_element_class:
7719 * @klass: the MonoClass to act on
7721 * Returns: the element class of an array or an enumeration.
7724 mono_class_get_element_class (MonoClass *klass)
7726 return klass->element_class;
7730 * mono_class_is_valuetype:
7731 * @klass: the MonoClass to act on
7733 * Returns: true if the MonoClass represents a ValueType.
7736 mono_class_is_valuetype (MonoClass *klass)
7738 return klass->valuetype;
7742 * mono_class_is_enum:
7743 * @klass: the MonoClass to act on
7745 * Returns: true if the MonoClass represents an enumeration.
7748 mono_class_is_enum (MonoClass *klass)
7750 return klass->enumtype;
7754 * mono_class_enum_basetype:
7755 * @klass: the MonoClass to act on
7757 * Returns: the underlying type representation for an enumeration.
7760 mono_class_enum_basetype (MonoClass *klass)
7762 if (klass->element_class == klass)
7763 /* SRE or broken types */
7766 return &klass->element_class->byval_arg;
7770 * mono_class_get_parent
7771 * @klass: the MonoClass to act on
7773 * Returns: the parent class for this class.
7776 mono_class_get_parent (MonoClass *klass)
7778 return klass->parent;
7782 * mono_class_get_nesting_type;
7783 * @klass: the MonoClass to act on
7785 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
7788 mono_class_get_nesting_type (MonoClass *klass)
7790 return klass->nested_in;
7794 * mono_class_get_rank:
7795 * @klass: the MonoClass to act on
7797 * Returns: the rank for the array (the number of dimensions).
7800 mono_class_get_rank (MonoClass *klass)
7806 * mono_class_get_flags:
7807 * @klass: the MonoClass to act on
7809 * The type flags from the TypeDef table from the metadata.
7810 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
7813 * Returns: the flags from the TypeDef table.
7816 mono_class_get_flags (MonoClass *klass)
7818 return klass->flags;
7822 * mono_class_get_name
7823 * @klass: the MonoClass to act on
7825 * Returns: the name of the class.
7828 mono_class_get_name (MonoClass *klass)
7834 * mono_class_get_namespace:
7835 * @klass: the MonoClass to act on
7837 * Returns: the namespace of the class.
7840 mono_class_get_namespace (MonoClass *klass)
7842 return klass->name_space;
7846 * mono_class_get_type:
7847 * @klass: the MonoClass to act on
7849 * This method returns the internal Type representation for the class.
7851 * Returns: the MonoType from the class.
7854 mono_class_get_type (MonoClass *klass)
7856 return &klass->byval_arg;
7860 * mono_class_get_type_token
7861 * @klass: the MonoClass to act on
7863 * This method returns type token for the class.
7865 * Returns: the type token for the class.
7868 mono_class_get_type_token (MonoClass *klass)
7870 return klass->type_token;
7874 * mono_class_get_byref_type:
7875 * @klass: the MonoClass to act on
7880 mono_class_get_byref_type (MonoClass *klass)
7882 return &klass->this_arg;
7886 * mono_class_num_fields:
7887 * @klass: the MonoClass to act on
7889 * Returns: the number of static and instance fields in the class.
7892 mono_class_num_fields (MonoClass *klass)
7894 return klass->field.count;
7898 * mono_class_num_methods:
7899 * @klass: the MonoClass to act on
7901 * Returns: the number of methods in the class.
7904 mono_class_num_methods (MonoClass *klass)
7906 return klass->method.count;
7910 * mono_class_num_properties
7911 * @klass: the MonoClass to act on
7913 * Returns: the number of properties in the class.
7916 mono_class_num_properties (MonoClass *klass)
7918 mono_class_setup_properties (klass);
7920 return klass->ext->property.count;
7924 * mono_class_num_events:
7925 * @klass: the MonoClass to act on
7927 * Returns: the number of events in the class.
7930 mono_class_num_events (MonoClass *klass)
7932 mono_class_setup_events (klass);
7934 return klass->ext->event.count;
7938 * mono_class_get_fields:
7939 * @klass: the MonoClass to act on
7941 * This routine is an iterator routine for retrieving the fields in a class.
7943 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7944 * iterate over all of the elements. When no more values are
7945 * available, the return value is NULL.
7947 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
7950 mono_class_get_fields (MonoClass* klass, gpointer *iter)
7952 MonoClassField* field;
7956 mono_class_setup_fields_locking (klass);
7957 if (klass->exception_type)
7959 /* start from the first */
7960 if (klass->field.count) {
7961 return *iter = &klass->fields [0];
7969 if (field < &klass->fields [klass->field.count]) {
7970 return *iter = field;
7976 * mono_class_get_methods
7977 * @klass: the MonoClass to act on
7979 * This routine is an iterator routine for retrieving the fields in a class.
7981 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7982 * iterate over all of the elements. When no more values are
7983 * available, the return value is NULL.
7985 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
7988 mono_class_get_methods (MonoClass* klass, gpointer *iter)
7990 MonoMethod** method;
7994 mono_class_setup_methods (klass);
7997 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
7998 * FIXME we should better report this error to the caller
8000 if (!klass->methods)
8002 /* start from the first */
8003 if (klass->method.count) {
8004 *iter = &klass->methods [0];
8005 return klass->methods [0];
8013 if (method < &klass->methods [klass->method.count]) {
8021 * mono_class_get_virtual_methods:
8023 * Iterate over the virtual methods of KLASS.
8025 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
8028 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
8030 MonoMethod** method;
8033 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
8035 mono_class_setup_methods (klass);
8037 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8038 * FIXME we should better report this error to the caller
8040 if (!klass->methods)
8042 /* start from the first */
8043 method = &klass->methods [0];
8048 while (method < &klass->methods [klass->method.count]) {
8049 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
8053 if (method < &klass->methods [klass->method.count]) {
8060 /* Search directly in metadata to avoid calling setup_methods () */
8061 MonoMethod *res = NULL;
8067 start_index = GPOINTER_TO_UINT (*iter);
8070 for (i = start_index; i < klass->method.count; ++i) {
8073 /* class->method.first points into the methodptr table */
8074 flags = mono_metadata_decode_table_row_col (klass->image, MONO_TABLE_METHOD, klass->method.first + i, MONO_METHOD_FLAGS);
8076 if (flags & METHOD_ATTRIBUTE_VIRTUAL)
8080 if (i < klass->method.count) {
8081 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
8082 /* Add 1 here so the if (*iter) check fails */
8083 *iter = GUINT_TO_POINTER (i + 1);
8092 * mono_class_get_properties:
8093 * @klass: the MonoClass to act on
8095 * This routine is an iterator routine for retrieving the properties in a class.
8097 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8098 * iterate over all of the elements. When no more values are
8099 * available, the return value is NULL.
8101 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
8104 mono_class_get_properties (MonoClass* klass, gpointer *iter)
8106 MonoProperty* property;
8110 mono_class_setup_properties (klass);
8111 /* start from the first */
8112 if (klass->ext->property.count) {
8113 return *iter = &klass->ext->properties [0];
8121 if (property < &klass->ext->properties [klass->ext->property.count]) {
8122 return *iter = property;
8128 * mono_class_get_events:
8129 * @klass: the MonoClass to act on
8131 * This routine is an iterator routine for retrieving the properties in a class.
8133 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8134 * iterate over all of the elements. When no more values are
8135 * available, the return value is NULL.
8137 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
8140 mono_class_get_events (MonoClass* klass, gpointer *iter)
8146 mono_class_setup_events (klass);
8147 /* start from the first */
8148 if (klass->ext->event.count) {
8149 return *iter = &klass->ext->events [0];
8157 if (event < &klass->ext->events [klass->ext->event.count]) {
8158 return *iter = event;
8164 * mono_class_get_interfaces
8165 * @klass: the MonoClass to act on
8167 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
8169 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8170 * iterate over all of the elements. When no more values are
8171 * available, the return value is NULL.
8173 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
8176 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
8184 mono_class_init (klass);
8185 if (!klass->interfaces_inited) {
8186 mono_class_setup_interfaces (klass, &error);
8187 if (!mono_error_ok (&error)) {
8188 mono_error_cleanup (&error);
8192 /* start from the first */
8193 if (klass->interface_count) {
8194 *iter = &klass->interfaces [0];
8195 return klass->interfaces [0];
8203 if (iface < &klass->interfaces [klass->interface_count]) {
8211 * mono_class_get_nested_types
8212 * @klass: the MonoClass to act on
8214 * This routine is an iterator routine for retrieving the nested types of a class.
8215 * This works only if @klass is non-generic, or a generic type definition.
8217 * You must pass a gpointer that points to zero and is treated as an opaque handle to
8218 * iterate over all of the elements. When no more values are
8219 * available, the return value is NULL.
8221 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
8224 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
8231 if (!klass->nested_classes_inited) {
8232 if (!klass->type_token)
8233 klass->nested_classes_inited = TRUE;
8234 mono_loader_lock ();
8235 if (!klass->nested_classes_inited) {
8236 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
8239 guint32 cols [MONO_NESTED_CLASS_SIZE];
8240 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
8241 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
8243 mono_loader_clear_error ();
8244 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8247 mono_class_alloc_ext (klass);
8248 klass->ext->nested_classes = g_list_prepend_image (klass->image, klass->ext->nested_classes, nclass);
8250 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
8253 mono_memory_barrier ();
8254 klass->nested_classes_inited = TRUE;
8255 mono_loader_unlock ();
8259 /* start from the first */
8260 if (klass->ext && klass->ext->nested_classes) {
8261 *iter = klass->ext->nested_classes;
8262 return klass->ext->nested_classes->data;
8264 /* no nested types */
8278 * mono_field_get_name:
8279 * @field: the MonoClassField to act on
8281 * Returns: the name of the field.
8284 mono_field_get_name (MonoClassField *field)
8290 * mono_field_get_type:
8291 * @field: the MonoClassField to act on
8293 * Returns: MonoType of the field.
8296 mono_field_get_type (MonoClassField *field)
8299 MonoType *type = mono_field_get_type_checked (field, &error);
8300 if (!mono_error_ok (&error)) {
8301 mono_trace_warning (MONO_TRACE_TYPE, "Could not load field's type due to %s", mono_error_get_message (&error));
8302 mono_error_cleanup (&error);
8309 * mono_field_get_type_checked:
8310 * @field: the MonoClassField to act on
8311 * @error: used to return any erro found while retrieving @field type
8313 * Returns: MonoType of the field.
8316 mono_field_get_type_checked (MonoClassField *field, MonoError *error)
8318 mono_error_init (error);
8320 mono_field_resolve_type (field, error);
8325 * mono_field_get_parent:
8326 * @field: the MonoClassField to act on
8328 * Returns: MonoClass where the field was defined.
8331 mono_field_get_parent (MonoClassField *field)
8333 return field->parent;
8337 * mono_field_get_flags;
8338 * @field: the MonoClassField to act on
8340 * The metadata flags for a field are encoded using the
8341 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8343 * Returns: the flags for the field.
8346 mono_field_get_flags (MonoClassField *field)
8349 return mono_field_resolve_flags (field);
8350 return field->type->attrs;
8354 * mono_field_get_offset;
8355 * @field: the MonoClassField to act on
8357 * Returns: the field offset.
8360 mono_field_get_offset (MonoClassField *field)
8362 return field->offset;
8366 mono_field_get_rva (MonoClassField *field)
8370 MonoClass *klass = field->parent;
8372 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
8374 if (!klass->ext || !klass->ext->field_def_values) {
8375 mono_loader_lock ();
8376 mono_class_alloc_ext (klass);
8377 if (!klass->ext->field_def_values)
8378 klass->ext->field_def_values = mono_class_alloc0 (klass, sizeof (MonoFieldDefaultValue) * klass->field.count);
8379 mono_loader_unlock ();
8382 field_index = mono_field_get_index (field);
8384 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
8385 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
8387 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
8388 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
8391 return klass->ext->field_def_values [field_index].data;
8395 * mono_field_get_data;
8396 * @field: the MonoClassField to act on
8398 * Returns: pointer to the metadata constant value or to the field
8399 * data if it has an RVA flag.
8402 mono_field_get_data (MonoClassField *field)
8404 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
8405 MonoTypeEnum def_type;
8407 return mono_class_get_field_default_value (field, &def_type);
8408 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
8409 return mono_field_get_rva (field);
8416 * mono_property_get_name:
8417 * @prop: the MonoProperty to act on
8419 * Returns: the name of the property
8422 mono_property_get_name (MonoProperty *prop)
8428 * mono_property_get_set_method
8429 * @prop: the MonoProperty to act on.
8431 * Returns: the setter method of the property (A MonoMethod)
8434 mono_property_get_set_method (MonoProperty *prop)
8440 * mono_property_get_get_method
8441 * @prop: the MonoProperty to act on.
8443 * Returns: the setter method of the property (A MonoMethod)
8446 mono_property_get_get_method (MonoProperty *prop)
8452 * mono_property_get_parent:
8453 * @prop: the MonoProperty to act on.
8455 * Returns: the MonoClass where the property was defined.
8458 mono_property_get_parent (MonoProperty *prop)
8460 return prop->parent;
8464 * mono_property_get_flags:
8465 * @prop: the MonoProperty to act on.
8467 * The metadata flags for a property are encoded using the
8468 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8470 * Returns: the flags for the property.
8473 mono_property_get_flags (MonoProperty *prop)
8479 * mono_event_get_name:
8480 * @event: the MonoEvent to act on
8482 * Returns: the name of the event.
8485 mono_event_get_name (MonoEvent *event)
8491 * mono_event_get_add_method:
8492 * @event: The MonoEvent to act on.
8494 * Returns: the @add' method for the event (a MonoMethod).
8497 mono_event_get_add_method (MonoEvent *event)
8503 * mono_event_get_remove_method:
8504 * @event: The MonoEvent to act on.
8506 * Returns: the @remove method for the event (a MonoMethod).
8509 mono_event_get_remove_method (MonoEvent *event)
8511 return event->remove;
8515 * mono_event_get_raise_method:
8516 * @event: The MonoEvent to act on.
8518 * Returns: the @raise method for the event (a MonoMethod).
8521 mono_event_get_raise_method (MonoEvent *event)
8523 return event->raise;
8527 * mono_event_get_parent:
8528 * @event: the MonoEvent to act on.
8530 * Returns: the MonoClass where the event is defined.
8533 mono_event_get_parent (MonoEvent *event)
8535 return event->parent;
8539 * mono_event_get_flags
8540 * @event: the MonoEvent to act on.
8542 * The metadata flags for an event are encoded using the
8543 * EVENT_* constants. See the tabledefs.h file for details.
8545 * Returns: the flags for the event.
8548 mono_event_get_flags (MonoEvent *event)
8550 return event->attrs;
8554 * mono_class_get_method_from_name:
8555 * @klass: where to look for the method
8556 * @name_space: name of the method
8557 * @param_count: number of parameters. -1 for any number.
8559 * Obtains a MonoMethod with a given name and number of parameters.
8560 * It only works if there are no multiple signatures for any given method name.
8563 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
8565 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
8569 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
8571 MonoMethod *res = NULL;
8574 /* Search directly in the metadata to avoid calling setup_methods () */
8575 for (i = 0; i < klass->method.count; ++i) {
8576 guint32 cols [MONO_METHOD_SIZE];
8578 MonoMethodSignature *sig;
8580 /* class->method.first points into the methodptr table */
8581 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
8583 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
8584 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
8585 if (param_count == -1) {
8589 sig = mono_method_signature (method);
8590 if (sig && sig->param_count == param_count) {
8601 * mono_class_get_method_from_name_flags:
8602 * @klass: where to look for the method
8603 * @name_space: name of the method
8604 * @param_count: number of parameters. -1 for any number.
8605 * @flags: flags which must be set in the method
8607 * Obtains a MonoMethod with a given name and number of parameters.
8608 * It only works if there are no multiple signatures for any given method name.
8611 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
8613 MonoMethod *res = NULL;
8616 mono_class_init (klass);
8618 if (klass->generic_class && !klass->methods) {
8619 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
8621 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
8625 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
8626 mono_class_setup_methods (klass);
8628 We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8629 See mono/tests/array_load_exception.il
8630 FIXME we should better report this error to the caller
8632 if (!klass->methods)
8634 for (i = 0; i < klass->method.count; ++i) {
8635 MonoMethod *method = klass->methods [i];
8637 if (method->name[0] == name [0] &&
8638 !strcmp (name, method->name) &&
8639 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
8640 ((method->flags & flags) == flags)) {
8647 res = find_method_in_metadata (klass, name, param_count, flags);
8654 * mono_class_set_failure:
8655 * @klass: class in which the failure was detected
8656 * @ex_type: the kind of exception/error to be thrown (later)
8657 * @ex_data: exception data (specific to each type of exception/error)
8659 * Keep a detected failure informations in the class for later processing.
8660 * Note that only the first failure is kept.
8662 * LOCKING: Acquires the loader lock.
8665 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
8667 if (klass->exception_type)
8670 mono_loader_lock ();
8671 klass->exception_type = ex_type;
8673 mono_image_property_insert (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
8674 mono_loader_unlock ();
8680 * mono_class_get_exception_data:
8682 * Return the exception_data property of KLASS.
8684 * LOCKING: Acquires the loader lock.
8687 mono_class_get_exception_data (MonoClass *klass)
8689 return mono_image_property_lookup (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
8693 * mono_classes_init:
8695 * Initialize the resources used by this module.
8698 mono_classes_init (void)
8700 mono_counters_register ("Inflated methods size",
8701 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
8702 mono_counters_register ("Inflated classes",
8703 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
8704 mono_counters_register ("Inflated classes size",
8705 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
8706 mono_counters_register ("MonoClass size",
8707 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
8708 mono_counters_register ("MonoClassExt size",
8709 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
8713 * mono_classes_cleanup:
8715 * Free the resources used by this module.
8718 mono_classes_cleanup (void)
8720 if (global_interface_bitset)
8721 mono_bitset_free (global_interface_bitset);
8725 * mono_class_get_exception_for_failure:
8726 * @klass: class in which the failure was detected
8728 * Return a constructed MonoException than the caller can then throw
8729 * using mono_raise_exception - or NULL if no failure is present (or
8730 * doesn't result in an exception).
8733 mono_class_get_exception_for_failure (MonoClass *klass)
8735 gpointer exception_data = mono_class_get_exception_data (klass);
8737 switch (klass->exception_type) {
8738 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
8739 MonoDomain *domain = mono_domain_get ();
8740 MonoSecurityManager* secman = mono_security_manager_get_methods ();
8741 MonoMethod *method = exception_data;
8742 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
8743 MonoObject *exc = NULL;
8747 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
8748 args [2] = mono_type_get_object (domain, &klass->byval_arg);
8749 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
8751 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
8752 return (MonoException*) exc;
8754 case MONO_EXCEPTION_TYPE_LOAD: {
8757 char *str = mono_type_get_full_name (klass);
8758 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
8759 name = mono_string_new (mono_domain_get (), str);
8761 ex = mono_get_exception_type_load (name, astr);
8765 case MONO_EXCEPTION_MISSING_METHOD: {
8766 char *class_name = exception_data;
8767 char *assembly_name = class_name + strlen (class_name) + 1;
8769 return mono_get_exception_missing_method (class_name, assembly_name);
8771 case MONO_EXCEPTION_MISSING_FIELD: {
8772 char *class_name = exception_data;
8773 char *member_name = class_name + strlen (class_name) + 1;
8775 return mono_get_exception_missing_field (class_name, member_name);
8777 case MONO_EXCEPTION_FILE_NOT_FOUND: {
8778 char *msg_format = exception_data;
8779 char *assembly_name = msg_format + strlen (msg_format) + 1;
8780 char *msg = g_strdup_printf (msg_format, assembly_name);
8783 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
8789 case MONO_EXCEPTION_BAD_IMAGE: {
8790 return mono_get_exception_bad_image_format (exception_data);
8793 MonoLoaderError *error;
8796 error = mono_loader_get_last_error ();
8798 ex = mono_loader_error_prepare_exception (error);
8802 /* TODO - handle other class related failures */
8809 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
8811 outer_klass = mono_class_get_generic_type_definition (outer_klass);
8812 inner_klass = mono_class_get_generic_type_definition (inner_klass);
8814 if (outer_klass == inner_klass)
8816 inner_klass = inner_klass->nested_in;
8817 } while (inner_klass);
8822 mono_class_get_generic_type_definition (MonoClass *klass)
8824 return klass->generic_class ? klass->generic_class->container_class : klass;
8828 * Check if @klass is a subtype of @parent ignoring generic instantiations.
8830 * Generic instantiations are ignored for all super types of @klass.
8832 * Visibility checks ignoring generic instantiations.
8835 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
8838 klass = mono_class_get_generic_type_definition (klass);
8839 parent = mono_class_get_generic_type_definition (parent);
8841 for (i = 0; i < klass->idepth; ++i) {
8842 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
8848 * Subtype can only access parent members with family protection if the site object
8849 * is subclass of Subtype. For example:
8850 * class A { protected int x; }
8852 * void valid_access () {
8856 * void invalid_access () {
8863 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
8865 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
8868 if (context_klass == NULL)
8870 /*if access_klass is not member_klass context_klass must be type compat*/
8871 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
8877 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
8880 if (accessing == accessed)
8882 if (!accessed || !accessing)
8885 /* extra safety under CoreCLR - the runtime does not verify the strongname signatures
8886 * anywhere so untrusted friends are not safe to access platform's code internals */
8887 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR) {
8888 if (!mono_security_core_clr_can_access_internals (accessing->image, accessed->image))
8892 mono_assembly_load_friends (accessed);
8893 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
8894 MonoAssemblyName *friend = tmp->data;
8895 /* Be conservative with checks */
8898 if (strcmp (accessing->aname.name, friend->name))
8900 if (friend->public_key_token [0]) {
8901 if (!accessing->aname.public_key_token [0])
8903 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
8912 * If klass is a generic type or if it is derived from a generic type, return the
8913 * MonoClass of the generic definition
8914 * Returns NULL if not found
8917 get_generic_definition_class (MonoClass *klass)
8920 if (klass->generic_class && klass->generic_class->container_class)
8921 return klass->generic_class->container_class;
8922 klass = klass->parent;
8928 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
8931 for (i = 0; i < ginst->type_argc; ++i) {
8932 MonoType *type = ginst->type_argv[i];
8933 switch (type->type) {
8934 case MONO_TYPE_SZARRAY:
8935 if (!can_access_type (access_klass, type->data.klass))
8938 case MONO_TYPE_ARRAY:
8939 if (!can_access_type (access_klass, type->data.array->eklass))
8943 if (!can_access_type (access_klass, mono_class_from_mono_type (type->data.type)))
8946 case MONO_TYPE_CLASS:
8947 case MONO_TYPE_VALUETYPE:
8948 case MONO_TYPE_GENERICINST:
8949 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
8957 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
8961 if (access_klass->element_class && !access_klass->enumtype)
8962 access_klass = access_klass->element_class;
8964 if (member_klass->element_class && !member_klass->enumtype)
8965 member_klass = member_klass->element_class;
8967 access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
8969 if (member_klass->byval_arg.type == MONO_TYPE_VAR || member_klass->byval_arg.type == MONO_TYPE_MVAR)
8972 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
8975 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
8978 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
8981 /*Non nested type with nested visibility. We just fail it.*/
8982 if (access_level >= TYPE_ATTRIBUTE_NESTED_PRIVATE && access_level <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM && member_klass->nested_in == NULL)
8985 switch (access_level) {
8986 case TYPE_ATTRIBUTE_NOT_PUBLIC:
8987 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
8989 case TYPE_ATTRIBUTE_PUBLIC:
8992 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
8995 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
8996 return is_nesting_type (member_klass, access_klass);
8998 case TYPE_ATTRIBUTE_NESTED_FAMILY:
8999 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
9001 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
9002 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9004 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
9005 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
9006 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
9008 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
9009 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
9010 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
9015 /* FIXME: check visibility of type, too */
9017 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
9019 MonoClass *member_generic_def;
9020 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
9021 access_klass->generic_container) &&
9022 (member_generic_def = get_generic_definition_class (member_klass))) {
9023 MonoClass *access_container;
9025 if (access_klass->generic_container)
9026 access_container = access_klass;
9028 access_container = access_klass->generic_class->container_class;
9030 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
9034 /* Partition I 8.5.3.2 */
9035 /* the access level values are the same for fields and methods */
9036 switch (access_level) {
9037 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
9038 /* same compilation unit */
9039 return access_klass->image == member_klass->image;
9040 case FIELD_ATTRIBUTE_PRIVATE:
9041 return access_klass == member_klass;
9042 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
9043 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
9044 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
9047 case FIELD_ATTRIBUTE_ASSEMBLY:
9048 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9049 case FIELD_ATTRIBUTE_FAMILY:
9050 if (is_valid_family_access (access_klass, member_klass, context_klass))
9053 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
9054 if (is_valid_family_access (access_klass, member_klass, context_klass))
9056 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
9057 case FIELD_ATTRIBUTE_PUBLIC:
9064 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
9066 /* FIXME: check all overlapping fields */
9067 int can = can_access_member (method->klass, field->parent, NULL, mono_field_get_type (field)->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9069 MonoClass *nested = method->klass->nested_in;
9071 can = can_access_member (nested, field->parent, NULL, mono_field_get_type (field)->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9074 nested = nested->nested_in;
9081 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
9083 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9085 MonoClass *nested = method->klass->nested_in;
9087 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9090 nested = nested->nested_in;
9095 * with generics calls to explicit interface implementations can be expressed
9096 * directly: the method is private, but we must allow it. This may be opening
9097 * a hole or the generics code should handle this differently.
9098 * Maybe just ensure the interface type is public.
9100 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
9106 * mono_method_can_access_method_full:
9107 * @method: The caller method
9108 * @called: The called method
9109 * @context_klass: The static type on stack of the owner @called object used
9111 * This function must be used with instance calls, as they have more strict family accessibility.
9112 * It can be used with static methods, but context_klass should be NULL.
9114 * Returns: TRUE if caller have proper visibility and acessibility to @called
9117 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
9119 MonoClass *access_class = method->klass;
9120 MonoClass *member_class = called->klass;
9121 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9123 MonoClass *nested = access_class->nested_in;
9125 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
9128 nested = nested->nested_in;
9135 can = can_access_type (access_class, member_class);
9137 MonoClass *nested = access_class->nested_in;
9139 can = can_access_type (nested, member_class);
9142 nested = nested->nested_in;
9149 if (called->is_inflated) {
9150 MonoMethodInflated * infl = (MonoMethodInflated*)called;
9151 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
9160 * mono_method_can_access_field_full:
9161 * @method: The caller method
9162 * @field: The accessed field
9163 * @context_klass: The static type on stack of the owner @field object used
9165 * This function must be used with instance fields, as they have more strict family accessibility.
9166 * It can be used with static fields, but context_klass should be NULL.
9168 * Returns: TRUE if caller have proper visibility and acessibility to @field
9171 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
9173 MonoClass *access_class = method->klass;
9174 MonoClass *member_class = field->parent;
9175 /* FIXME: check all overlapping fields */
9176 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9178 MonoClass *nested = access_class->nested_in;
9180 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
9183 nested = nested->nested_in;
9190 can = can_access_type (access_class, member_class);
9192 MonoClass *nested = access_class->nested_in;
9194 can = can_access_type (nested, member_class);
9197 nested = nested->nested_in;
9207 * mono_type_is_valid_enum_basetype:
9208 * @type: The MonoType to check
9210 * Returns: TRUE if the type can be used as the basetype of an enum
9212 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
9213 switch (type->type) {
9216 case MONO_TYPE_BOOLEAN:
9219 case MONO_TYPE_CHAR:
9232 * mono_class_is_valid_enum:
9233 * @klass: An enum class to be validated
9235 * This method verify the required properties an enum should have.
9237 * Returns: TRUE if the informed enum class is valid
9239 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
9240 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
9241 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
9243 gboolean mono_class_is_valid_enum (MonoClass *klass) {
9244 MonoClassField * field;
9245 gpointer iter = NULL;
9246 gboolean found_base_field = FALSE;
9248 g_assert (klass->enumtype);
9249 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
9250 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
9254 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
9257 while ((field = mono_class_get_fields (klass, &iter))) {
9258 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
9259 if (found_base_field)
9261 found_base_field = TRUE;
9262 if (!mono_type_is_valid_enum_basetype (field->type))
9267 if (!found_base_field)
9270 if (klass->method.count > 0)
9277 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
9279 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
9283 * mono_class_setup_interface_id:
9285 * Initializes MonoClass::interface_id if required.
9287 * LOCKING: Acquires the loader lock.
9290 mono_class_setup_interface_id (MonoClass *class)
9292 mono_loader_lock ();
9293 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
9294 class->interface_id = mono_get_unique_iid (class);
9295 mono_loader_unlock ();
9299 * mono_class_alloc_ext:
9301 * Allocate klass->ext if not already done.
9302 * LOCKING: Assumes the loader lock is held.
9305 mono_class_alloc_ext (MonoClass *klass)
9308 klass->ext = mono_class_alloc0 (klass, sizeof (MonoClassExt));
9309 class_ext_size += sizeof (MonoClassExt);
9314 * mono_class_setup_interfaces:
9316 * Initialize class->interfaces/interfaces_count.
9317 * LOCKING: Acquires the loader lock.
9318 * This function can fail the type.
9321 mono_class_setup_interfaces (MonoClass *klass, MonoError *error)
9325 mono_error_init (error);
9327 if (klass->interfaces_inited)
9330 mono_loader_lock ();
9332 if (klass->interfaces_inited) {
9333 mono_loader_unlock ();
9337 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
9340 /* generic IList, ICollection, IEnumerable */
9341 klass->interface_count = 1;
9342 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
9344 args [0] = &klass->element_class->byval_arg;
9345 klass->interfaces [0] = mono_class_bind_generic_parameters (
9346 mono_defaults.generic_ilist_class, 1, args, FALSE);
9347 } else if (klass->generic_class) {
9348 MonoClass *gklass = klass->generic_class->container_class;
9350 klass->interface_count = gklass->interface_count;
9351 klass->interfaces = mono_class_new0 (klass, MonoClass *, klass->interface_count);
9352 for (i = 0; i < klass->interface_count; i++) {
9353 klass->interfaces [i] = mono_class_inflate_generic_class_checked (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class), error);
9354 if (!mono_error_ok (error)) {
9355 mono_class_set_failure (klass, MONO_EXCEPTION_TYPE_LOAD, g_strdup ("Could not setup the interfaces"));
9356 klass->interfaces = NULL;
9362 mono_memory_barrier ();
9364 klass->interfaces_inited = TRUE;
9366 mono_loader_unlock ();
9370 mono_field_resolve_type (MonoClassField *field, MonoError *error)
9372 MonoClass *class = field->parent;
9373 MonoImage *image = class->image;
9374 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
9375 int field_idx = field - class->fields;
9377 mono_error_init (error);
9380 MonoClassField *gfield = >d->fields [field_idx];
9381 MonoType *gtype = mono_field_get_type_checked (gfield, error);
9382 if (!mono_error_ok (error)) {
9383 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", field_idx, mono_error_get_message (error));
9384 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
9388 field->type = mono_class_inflate_generic_type_no_copy (image, gtype, mono_class_get_context (class), error);
9389 if (!mono_error_ok (error)) {
9390 char *err_msg = g_strdup_printf ("Could not load field %d type due to: %s", field_idx, mono_error_get_message (error));
9391 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, err_msg);
9396 guint32 cols [MONO_FIELD_SIZE];
9397 MonoGenericContainer *container = NULL;
9398 int idx = class->field.first + field_idx;
9400 /*FIXME, in theory we do not lazy load SRE fields*/
9401 g_assert (!image->dynamic);
9403 if (class->generic_container) {
9404 container = class->generic_container;
9406 container = gtd->generic_container;
9407 g_assert (container);
9410 /* class->field.first and idx points into the fieldptr table */
9411 mono_metadata_decode_table_row (image, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
9413 if (!mono_verifier_verify_field_signature (image, cols [MONO_FIELD_SIGNATURE], NULL)) {
9414 mono_error_set_type_load_class (error, class, "Could not verify field %s signature", field->name);
9415 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
9419 sig = mono_metadata_blob_heap (image, cols [MONO_FIELD_SIGNATURE]);
9421 mono_metadata_decode_value (sig, &sig);
9422 /* FIELD signature == 0x06 */
9423 g_assert (*sig == 0x06);
9424 field->type = mono_metadata_parse_type_full (image, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
9426 mono_error_set_type_load_class (error, class, "Could not load field %s type", field->name);
9427 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
9428 mono_loader_clear_error ();
9434 mono_field_resolve_flags (MonoClassField *field)
9436 MonoClass *class = field->parent;
9437 MonoImage *image = class->image;
9438 MonoClass *gtd = class->generic_class ? mono_class_get_generic_type_definition (class) : NULL;
9439 int field_idx = field - class->fields;
9443 MonoClassField *gfield = >d->fields [field_idx];
9444 return mono_field_get_flags (gfield);
9446 int idx = class->field.first + field_idx;
9448 /*FIXME, in theory we do not lazy load SRE fields*/
9449 g_assert (!image->dynamic);
9451 return mono_metadata_decode_table_row_col (image, MONO_TABLE_FIELD, idx, MONO_FIELD_FLAGS);
9456 * mono_class_setup_basic_field_info:
9457 * @class: The class to initialize
9459 * Initializes the class->fields array of fields.
9460 * Aquires the loader lock.
9463 mono_class_setup_basic_field_info_locking (MonoClass *class)
9465 mono_loader_lock ();
9466 mono_class_setup_basic_field_info (class);
9467 mono_loader_unlock ();
9471 * mono_class_get_fields_lazy:
9472 * @klass: the MonoClass to act on
9474 * This routine is an iterator routine for retrieving the fields in a class.
9475 * Only minimal information about fields are loaded. Accessors must be used
9476 * for all MonoClassField returned.
9478 * You must pass a gpointer that points to zero and is treated as an opaque handle to
9479 * iterate over all of the elements. When no more values are
9480 * available, the return value is NULL.
9482 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
9485 mono_class_get_fields_lazy (MonoClass* klass, gpointer *iter)
9487 MonoClassField* field;
9491 mono_class_setup_basic_field_info_locking (klass);
9494 /* start from the first */
9495 if (klass->field.count) {
9496 return *iter = &klass->fields [0];
9504 if (field < &klass->fields [klass->field.count]) {
9505 return *iter = field;