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>
45 gboolean mono_print_vtable = FALSE;
48 * Controls whenever mono_class_init () constructs a generic vtable. This is TRUE by
49 * default to avoid breaking embedding apps, but set to FALSE by the runtime executable
52 gboolean mono_setup_vtable_in_class_init = TRUE;
55 guint32 inflated_classes, inflated_classes_size, inflated_methods_size;
56 guint32 classes_size, class_ext_size;
58 /* Function supplied by the runtime to find classes by name using information from the AOT file */
59 static MonoGetClassFromName get_class_from_name = NULL;
61 static MonoClass * mono_class_create_from_typedef (MonoImage *image, guint32 type_token);
62 static gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
63 static gboolean can_access_type (MonoClass *access_klass, MonoClass *member_klass);
64 static MonoMethod* find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags);
65 static int generic_array_methods (MonoClass *class);
66 static void setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos);
68 static MonoMethod* mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter);
70 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
71 void (*mono_debugger_class_loaded_methods_func) (MonoClass *klass) = NULL;
74 * mono_class_from_typeref:
76 * @type_token: a TypeRef token
78 * Creates the MonoClass* structure representing the type defined by
79 * the typeref token valid inside @image.
80 * Returns: the MonoClass* representing the typeref token, NULL ifcould
84 mono_class_from_typeref (MonoImage *image, guint32 type_token)
86 guint32 cols [MONO_TYPEREF_SIZE];
87 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
89 const char *name, *nspace;
93 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
95 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
96 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
98 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
99 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
100 case MONO_RESOLTION_SCOPE_MODULE:
102 g_error ("null ResolutionScope not yet handled");
103 /* a typedef in disguise */
104 return mono_class_from_name (image, nspace, name);
105 case MONO_RESOLTION_SCOPE_MODULEREF:
106 module = mono_image_load_module (image, idx);
108 return mono_class_from_name (module, nspace, name);
110 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
113 human_name = mono_stringify_assembly_name (&image->assembly->aname);
114 mono_loader_set_error_type_load (msg, human_name);
120 case MONO_RESOLTION_SCOPE_TYPEREF: {
121 MonoClass *enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
124 if (enclosing->nested_classes_inited && enclosing->ext) {
125 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
126 for (tmp = enclosing->ext->nested_classes; tmp; tmp = tmp->next) {
128 if (strcmp (res->name, name) == 0)
132 /* Don't call mono_class_init as we might've been called by it recursively */
133 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
135 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
136 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
137 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
139 if (strcmp (nname, name) == 0)
140 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
142 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
145 g_warning ("TypeRef ResolutionScope not yet handled (%d) for %s.%s in image %s", idx, nspace, name, image->name);
148 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
152 if (!image->references || !image->references [idx - 1])
153 mono_assembly_load_reference (image, idx - 1);
154 g_assert (image->references [idx - 1]);
156 /* If the assembly did not load, register this as a type load exception */
157 if (image->references [idx - 1] == REFERENCE_MISSING){
158 MonoAssemblyName aname;
161 mono_assembly_get_assemblyref (image, idx - 1, &aname);
162 human_name = mono_stringify_assembly_name (&aname);
163 mono_loader_set_error_assembly_load (human_name, image->assembly->ref_only);
169 return mono_class_from_name (image->references [idx - 1]->image, nspace, name);
174 mono_image_memdup (MonoImage *image, void *data, guint size)
176 void *res = mono_image_alloc (image, size);
177 memcpy (res, data, size);
181 /* Copy everything mono_metadata_free_array free. */
183 mono_dup_array_type (MonoImage *image, MonoArrayType *a)
186 a = mono_image_memdup (image, a, sizeof (MonoArrayType));
188 a->sizes = mono_image_memdup (image, a->sizes, a->numsizes * sizeof (int));
190 a->lobounds = mono_image_memdup (image, a->lobounds, a->numlobounds * sizeof (int));
192 a = g_memdup (a, sizeof (MonoArrayType));
194 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
196 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
201 /* Copy everything mono_metadata_free_method_signature free. */
203 mono_metadata_signature_deep_dup (MonoImage *image, MonoMethodSignature *sig)
207 sig = mono_metadata_signature_dup_full (image, sig);
209 sig->ret = mono_metadata_type_dup (image, sig->ret);
210 for (i = 0; i < sig->param_count; ++i)
211 sig->params [i] = mono_metadata_type_dup (image, sig->params [i]);
217 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
219 MonoAssembly *ta = klass->image->assembly;
221 g_string_append_printf (
222 str, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
224 ta->aname.major, ta->aname.minor, ta->aname.build, ta->aname.revision,
225 ta->aname.culture && *ta->aname.culture? ta->aname.culture: "neutral",
226 ta->aname.public_key_token [0] ? (char *)ta->aname.public_key_token : "null",
227 (ta->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
231 mono_type_name_check_byref (MonoType *type, GString *str)
234 g_string_append_c (str, '&');
238 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
239 MonoTypeNameFormat format)
243 switch (type->type) {
244 case MONO_TYPE_ARRAY: {
245 int i, rank = type->data.array->rank;
246 MonoTypeNameFormat nested_format;
248 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
249 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
251 mono_type_get_name_recurse (
252 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
253 g_string_append_c (str, '[');
255 g_string_append_c (str, '*');
256 for (i = 1; i < rank; i++)
257 g_string_append_c (str, ',');
258 g_string_append_c (str, ']');
260 mono_type_name_check_byref (type, str);
262 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
263 _mono_type_get_assembly_name (type->data.array->eklass, str);
266 case MONO_TYPE_SZARRAY: {
267 MonoTypeNameFormat nested_format;
269 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
270 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
272 mono_type_get_name_recurse (
273 &type->data.klass->byval_arg, str, FALSE, nested_format);
274 g_string_append (str, "[]");
276 mono_type_name_check_byref (type, str);
278 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
279 _mono_type_get_assembly_name (type->data.klass, str);
282 case MONO_TYPE_PTR: {
283 MonoTypeNameFormat nested_format;
285 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
286 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
288 mono_type_get_name_recurse (
289 type->data.type, str, FALSE, nested_format);
290 g_string_append_c (str, '*');
292 mono_type_name_check_byref (type, str);
294 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
295 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
300 g_assert (mono_generic_param_info (type->data.generic_param)->name);
301 g_string_append (str, mono_generic_param_info (type->data.generic_param)->name);
303 mono_type_name_check_byref (type, str);
307 klass = mono_class_from_mono_type (type);
308 if (klass->nested_in) {
309 mono_type_get_name_recurse (
310 &klass->nested_in->byval_arg, str, TRUE, format);
311 if (format == MONO_TYPE_NAME_FORMAT_IL)
312 g_string_append_c (str, '.');
314 g_string_append_c (str, '+');
315 } else if (*klass->name_space) {
316 g_string_append (str, klass->name_space);
317 g_string_append_c (str, '.');
319 if (format == MONO_TYPE_NAME_FORMAT_IL) {
320 char *s = strchr (klass->name, '`');
321 int len = s ? s - klass->name : strlen (klass->name);
323 g_string_append_len (str, klass->name, len);
325 g_string_append (str, klass->name);
328 if (klass->generic_class) {
329 MonoGenericClass *gclass = klass->generic_class;
330 MonoGenericInst *inst = gclass->context.class_inst;
331 MonoTypeNameFormat nested_format;
334 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
335 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
337 if (format == MONO_TYPE_NAME_FORMAT_IL)
338 g_string_append_c (str, '<');
340 g_string_append_c (str, '[');
341 for (i = 0; i < inst->type_argc; i++) {
342 MonoType *t = inst->type_argv [i];
345 g_string_append_c (str, ',');
346 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
347 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
348 g_string_append_c (str, '[');
349 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
350 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
351 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
352 g_string_append_c (str, ']');
354 if (format == MONO_TYPE_NAME_FORMAT_IL)
355 g_string_append_c (str, '>');
357 g_string_append_c (str, ']');
358 } else if (klass->generic_container &&
359 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
360 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
363 if (format == MONO_TYPE_NAME_FORMAT_IL)
364 g_string_append_c (str, '<');
366 g_string_append_c (str, '[');
367 for (i = 0; i < klass->generic_container->type_argc; i++) {
369 g_string_append_c (str, ',');
370 g_string_append (str, mono_generic_container_get_param_info (klass->generic_container, i)->name);
372 if (format == MONO_TYPE_NAME_FORMAT_IL)
373 g_string_append_c (str, '>');
375 g_string_append_c (str, ']');
378 mono_type_name_check_byref (type, str);
380 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
381 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
382 _mono_type_get_assembly_name (klass, str);
388 * mono_type_get_name:
390 * @format: the format for the return string.
393 * Returns: the string representation in a number of formats:
395 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
396 * returned in the formatrequired by System.Reflection, this is the
397 * inverse of mono_reflection_parse_type ().
399 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
400 * be used by the IL assembler.
402 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
404 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
407 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
411 result = g_string_new ("");
413 mono_type_get_name_recurse (type, result, FALSE, format);
415 return g_string_free (result, FALSE);
419 * mono_type_get_full_name:
422 * Returns: the string representation for type as required by System.Reflection.
423 * The inverse of mono_reflection_parse_type ().
426 mono_type_get_full_name (MonoClass *class)
428 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
432 * mono_type_get_name:
435 * Returns: the string representation for type as it would be represented in IL code.
438 mono_type_get_name (MonoType *type)
440 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
444 * mono_type_get_underlying_type:
447 * Returns: the MonoType for the underlying integer type if @type
448 * is an enum and byref is false, otherwise the type itself.
451 mono_type_get_underlying_type (MonoType *type)
453 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
454 return mono_class_enum_basetype (type->data.klass);
455 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
456 return mono_class_enum_basetype (type->data.generic_class->container_class);
461 * mono_class_is_open_constructed_type:
464 * Returns TRUE if type represents a generics open constructed type
465 * (not all the type parameters required for the instantiation have
469 mono_class_is_open_constructed_type (MonoType *t)
475 case MONO_TYPE_SZARRAY:
476 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
477 case MONO_TYPE_ARRAY:
478 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
480 return mono_class_is_open_constructed_type (t->data.type);
481 case MONO_TYPE_GENERICINST:
482 return t->data.generic_class->context.class_inst->is_open;
489 inflate_generic_type (MonoImage *image, MonoType *type, MonoGenericContext *context)
491 switch (type->type) {
492 case MONO_TYPE_MVAR: {
494 int num = mono_type_get_generic_param_num (type);
495 MonoGenericInst *inst = context->method_inst;
496 if (!inst || !inst->type_argv)
498 if (num >= inst->type_argc)
499 g_error ("MVAR %d (%s) cannot be expanded in this context with %d instantiations",
500 num, mono_generic_param_info (type->data.generic_param)->name, inst->type_argc);
503 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
504 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
505 * ->byref and ->attrs from @type are propagated to the returned type.
507 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
508 nt->byref = type->byref;
509 nt->attrs = type->attrs;
512 case MONO_TYPE_VAR: {
514 int num = mono_type_get_generic_param_num (type);
515 MonoGenericInst *inst = context->class_inst;
518 if (num >= inst->type_argc)
519 g_error ("VAR %d (%s) cannot be expanded in this context with %d instantiations",
520 num, mono_generic_param_info (type->data.generic_param)->name, inst->type_argc);
521 nt = mono_metadata_type_dup (image, inst->type_argv [num]);
522 nt->byref = type->byref;
523 nt->attrs = type->attrs;
526 case MONO_TYPE_SZARRAY: {
527 MonoClass *eclass = type->data.klass;
528 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
531 nt = mono_metadata_type_dup (image, type);
532 nt->data.klass = mono_class_from_mono_type (inflated);
533 mono_metadata_free_type (inflated);
536 case MONO_TYPE_ARRAY: {
537 MonoClass *eclass = type->data.array->eklass;
538 MonoType *nt, *inflated = inflate_generic_type (NULL, &eclass->byval_arg, context);
541 nt = mono_metadata_type_dup (image, type);
542 nt->data.array = g_memdup (nt->data.array, sizeof (MonoArrayType));
543 nt->data.array->eklass = mono_class_from_mono_type (inflated);
544 mono_metadata_free_type (inflated);
547 case MONO_TYPE_GENERICINST: {
548 MonoGenericClass *gclass = type->data.generic_class;
549 MonoGenericInst *inst;
551 if (!gclass->context.class_inst->is_open)
554 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context);
555 if (inst != gclass->context.class_inst)
556 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
558 if (gclass == type->data.generic_class)
561 nt = mono_metadata_type_dup (image, type);
562 nt->data.generic_class = gclass;
565 case MONO_TYPE_CLASS:
566 case MONO_TYPE_VALUETYPE: {
567 MonoClass *klass = type->data.klass;
568 MonoGenericContainer *container = klass->generic_container;
569 MonoGenericInst *inst;
570 MonoGenericClass *gclass = NULL;
576 /* We can't use context->class_inst directly, since it can have more elements */
577 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context);
578 if (inst == container->context.class_inst)
581 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
583 nt = mono_metadata_type_dup (image, type);
584 nt->type = MONO_TYPE_GENERICINST;
585 nt->data.generic_class = gclass;
595 mono_generic_class_get_context (MonoGenericClass *gclass)
597 return &gclass->context;
601 mono_class_get_context (MonoClass *class)
603 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
607 * mono_class_get_generic_container:
609 * Return the generic container of KLASS which should be a generic type definition.
611 MonoGenericContainer*
612 mono_class_get_generic_container (MonoClass *klass)
614 g_assert (klass->is_generic);
616 return klass->generic_container;
620 * mono_class_get_generic_class:
622 * Return the MonoGenericClass of KLASS, which should be a generic instance.
625 mono_class_get_generic_class (MonoClass *klass)
627 g_assert (klass->is_inflated);
629 return klass->generic_class;
633 * mono_class_inflate_generic_type_with_mempool:
634 * @mempool: a mempool
636 * @context: a generics context
638 * The same as mono_class_inflate_generic_type, but allocates the MonoType
639 * from mempool if it is non-NULL. If it is NULL, the MonoType is
640 * allocated on the heap and is owned by the caller.
641 * The returned type can potentially be the same as TYPE, so it should not be
642 * modified by the caller, and it should be freed using mono_metadata_free_type ().
645 mono_class_inflate_generic_type_with_mempool (MonoImage *image, MonoType *type, MonoGenericContext *context)
647 MonoType *inflated = NULL;
650 inflated = inflate_generic_type (image, type, context);
653 MonoType *shared = mono_metadata_get_shared_type (type);
658 return mono_metadata_type_dup (image, type);
662 mono_stats.inflated_type_count++;
667 * mono_class_inflate_generic_type:
669 * @context: a generics context
671 * If @type is a generic type and @context is not NULL, instantiate it using the
672 * generics context @context.
674 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
675 * on the heap and is owned by the caller.
678 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
680 return mono_class_inflate_generic_type_with_mempool (NULL, type, context);
684 * mono_class_inflate_generic_type_no_copy:
686 * Same as inflate_generic_type_with_mempool, but return TYPE if no inflation
690 mono_class_inflate_generic_type_no_copy (MonoImage *image, MonoType *type, MonoGenericContext *context)
692 MonoType *inflated = NULL;
695 inflated = inflate_generic_type (image, type, context);
700 mono_stats.inflated_type_count++;
705 * mono_class_inflate_generic_class:
707 * Inflate the class GKLASS with CONTEXT.
710 mono_class_inflate_generic_class (MonoClass *gklass, MonoGenericContext *context)
715 inflated = mono_class_inflate_generic_type (&gklass->byval_arg, context);
717 res = mono_class_from_mono_type (inflated);
718 mono_metadata_free_type (inflated);
723 static MonoGenericContext
724 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with)
726 MonoGenericInst *class_inst = NULL;
727 MonoGenericInst *method_inst = NULL;
728 MonoGenericContext res;
730 if (context->class_inst)
731 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with);
733 if (context->method_inst)
734 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with);
736 res.class_inst = class_inst;
737 res.method_inst = method_inst;
743 * mono_class_inflate_generic_method:
744 * @method: a generic method
745 * @context: a generics context
747 * Instantiate the generic method @method using the generics context @context.
749 * Returns: the new instantiated method
752 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
754 return mono_class_inflate_generic_method_full (method, NULL, context);
758 * mono_class_inflate_generic_method:
760 * Instantiate method @method with the generic context @context.
761 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
762 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
765 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
768 MonoMethodInflated *iresult, *cached;
769 MonoMethodSignature *sig;
770 MonoGenericContext tmp_context;
771 gboolean is_mb_open = FALSE;
773 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
774 while (method->is_inflated) {
775 MonoGenericContext *method_context = mono_method_get_context (method);
776 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
778 tmp_context = inflate_generic_context (method_context, context);
779 context = &tmp_context;
781 if (mono_metadata_generic_context_equal (method_context, context))
784 method = imethod->declaring;
787 if (!method->is_generic && !method->klass->generic_container)
791 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
792 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
793 * This is opposite to the way non-SRE MethodInfos behave.
795 * This happens, for example, when we want to emit a recursive generic method. Given the following C# code:
797 * void Example<T> () {
801 * In Example, the method token must be encoded as: "void Example<!!0>()"
803 * The reference to the first generic argument, "!!0", must be explicit otherwise it won't be inflated
804 * properly. To get that we need to inflate the MethodBuilder with its own arguments.
806 * On the other hand, inflating a non-SRE generic method with its own arguments should
807 * return itself. For example:
809 * MethodInfo m = ... //m is a generic method definition
810 * MethodInfo res = m.MakeGenericMethod (m.GetGenericArguments ());
813 * To allow such scenarios we must allow inflation of MethodBuilder to happen in a diferent way than
814 * what happens with regular methods.
816 * There is one last touch to this madness, once a TypeBuilder is finished, IOW CreateType() is called,
817 * everything should behave like a regular type or method.
820 is_mb_open = method->is_generic &&
821 method->klass->image->dynamic && !method->klass->wastypebuilder && /* that is a MethodBuilder from an unfinished TypeBuilder */
822 context->method_inst == mono_method_get_generic_container (method)->context.method_inst; /* and it's been instantiated with its own arguments. */
824 iresult = g_new0 (MonoMethodInflated, 1);
825 iresult->context = *context;
826 iresult->declaring = method;
827 iresult->method.method.is_mb_open = is_mb_open;
829 if (!context->method_inst && method->is_generic)
830 iresult->context.method_inst = mono_method_get_generic_container (method)->context.method_inst;
832 if (!context->class_inst) {
833 g_assert (!iresult->declaring->klass->generic_class);
834 if (iresult->declaring->klass->generic_container)
835 iresult->context.class_inst = iresult->declaring->klass->generic_container->context.class_inst;
836 else if (iresult->declaring->klass->generic_class)
837 iresult->context.class_inst = iresult->declaring->klass->generic_class->context.class_inst;
841 cached = mono_method_inflated_lookup (iresult, FALSE);
843 mono_loader_unlock ();
845 return (MonoMethod*)cached;
848 mono_stats.inflated_method_count++;
850 inflated_methods_size += sizeof (MonoMethodInflated);
852 sig = mono_method_signature (method);
854 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
856 memcpy (&iresult->method.normal, method, sizeof (MonoMethodNormal));
857 iresult->method.normal.header = NULL;
860 result = (MonoMethod *) iresult;
861 result->is_inflated = TRUE;
862 result->is_generic = FALSE;
863 result->signature = NULL;
864 result->is_mb_open = is_mb_open;
866 if (!context->method_inst) {
867 /* Set the generic_container of the result to the generic_container of method */
868 MonoGenericContainer *generic_container = mono_method_get_generic_container (method);
870 if (generic_container) {
871 result->is_generic = 1;
872 mono_method_set_generic_container (result, generic_container);
876 if (!klass_hint || !klass_hint->generic_class ||
877 klass_hint->generic_class->container_class != method->klass ||
878 klass_hint->generic_class->context.class_inst != context->class_inst)
881 if (method->klass->generic_container)
882 result->klass = klass_hint;
884 if (!result->klass) {
885 MonoType *inflated = inflate_generic_type (NULL, &method->klass->byval_arg, context);
886 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
888 mono_metadata_free_type (inflated);
891 mono_method_inflated_lookup (iresult, TRUE);
892 mono_loader_unlock ();
897 * mono_get_inflated_method:
899 * Obsolete. We keep it around since it's mentioned in the public API.
902 mono_get_inflated_method (MonoMethod *method)
908 * mono_method_get_context_general:
910 * @uninflated: handle uninflated methods?
912 * Returns the generic context of a method or NULL if it doesn't have
913 * one. For an inflated method that's the context stored in the
914 * method. Otherwise it's in the method's generic container or in the
915 * generic container of the method's class.
918 mono_method_get_context_general (MonoMethod *method, gboolean uninflated)
920 if (method->is_inflated) {
921 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
922 return &imethod->context;
926 if (method->is_generic)
927 return &(mono_method_get_generic_container (method)->context);
928 if (method->klass->generic_container)
929 return &method->klass->generic_container->context;
934 * mono_method_get_context:
937 * Returns the generic context for method if it's inflated, otherwise
941 mono_method_get_context (MonoMethod *method)
943 return mono_method_get_context_general (method, FALSE);
947 * mono_method_get_generic_container:
949 * Returns the generic container of METHOD, which should be a generic method definition.
950 * Returns NULL if METHOD is not a generic method definition.
951 * LOCKING: Acquires the loader lock.
953 MonoGenericContainer*
954 mono_method_get_generic_container (MonoMethod *method)
956 MonoGenericContainer *container;
958 if (!method->is_generic)
961 container = mono_image_property_lookup (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER);
962 g_assert (container);
968 * mono_method_set_generic_container:
970 * Sets the generic container of METHOD to CONTAINER.
971 * LOCKING: Acquires the loader lock.
974 mono_method_set_generic_container (MonoMethod *method, MonoGenericContainer* container)
976 g_assert (method->is_generic);
978 mono_image_property_insert (method->klass->image, method, MONO_METHOD_PROP_GENERIC_CONTAINER, container);
982 * mono_class_find_enum_basetype:
983 * @class: The enum class
985 * Determine the basetype of an enum by iterating through its fields. We do this
986 * in a separate function since it is cheaper than calling mono_class_setup_fields.
989 mono_class_find_enum_basetype (MonoClass *class)
991 MonoImage *m = class->image;
992 const int top = class->field.count;
995 g_assert (class->enumtype);
998 * Fetch all the field information.
1000 for (i = 0; i < top; i++){
1002 guint32 cols [MONO_FIELD_SIZE];
1003 int idx = class->field.first + i;
1004 MonoGenericContainer *container = NULL;
1007 /* class->field.first and idx points into the fieldptr table */
1008 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1009 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1010 mono_metadata_decode_value (sig, &sig);
1011 /* FIELD signature == 0x06 */
1012 g_assert (*sig == 0x06);
1013 if (class->generic_container)
1014 container = class->generic_container;
1015 else if (class->generic_class) {
1016 MonoClass *gklass = class->generic_class->container_class;
1018 container = gklass->generic_container;
1019 g_assert (container);
1021 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1024 if (class->generic_class) {
1025 //FIXME do we leak here?
1026 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
1027 ftype->attrs = cols [MONO_FIELD_FLAGS];
1030 if (class->enumtype && !(cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC))
1038 * mono_class_setup_fields:
1039 * @class: The class to initialize
1041 * Initializes the class->fields.
1042 * LOCKING: Assumes the loader lock is held.
1045 mono_class_setup_fields (MonoClass *class)
1047 MonoImage *m = class->image;
1048 int top = class->field.count;
1049 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1050 int i, blittable = TRUE;
1051 guint32 real_size = 0;
1052 guint32 packing_size = 0;
1053 gboolean explicit_size;
1054 MonoClassField *field;
1055 MonoGenericContainer *container = NULL;
1056 MonoClass *gklass = NULL;
1058 if (class->size_inited)
1061 if (class->generic_class && class->generic_class->container_class->image->dynamic && !class->generic_class->container_class->wastypebuilder) {
1063 * This happens when a generic instance of an unfinished generic typebuilder
1064 * is used as an element type for creating an array type. We can't initialize
1065 * the fields of this class using the fields of gklass, since gklass is not
1066 * finished yet, fields could be added to it later.
1071 if (class->generic_class) {
1072 MonoClass *gklass = class->generic_class->container_class;
1073 mono_class_setup_fields (gklass);
1074 top = gklass->field.count;
1075 class->field.count = gklass->field.count;
1078 class->instance_size = 0;
1080 class->sizes.class_size = 0;
1082 if (class->parent) {
1083 /* For generic instances, class->parent might not have been initialized */
1084 mono_class_init (class->parent);
1085 if (!class->parent->size_inited)
1086 mono_class_setup_fields (class->parent);
1087 class->instance_size += class->parent->instance_size;
1088 class->min_align = class->parent->min_align;
1089 /* we use |= since it may have been set already */
1090 class->has_references |= class->parent->has_references;
1091 blittable = class->parent->blittable;
1093 class->instance_size = sizeof (MonoObject);
1094 class->min_align = 1;
1097 if (class->simd_type)
1098 class->min_align = 16;
1100 /* Get the real size */
1101 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
1103 if (explicit_size) {
1104 g_assert ((packing_size & 0xfffffff0) == 0);
1105 class->packing_size = packing_size;
1106 real_size += class->instance_size;
1110 if (explicit_size && real_size) {
1111 class->instance_size = MAX (real_size, class->instance_size);
1113 class->size_inited = 1;
1114 class->blittable = blittable;
1118 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
1121 /* Prevent infinite loops if the class references itself */
1122 class->size_inited = 1;
1124 class->fields = mono_image_alloc0 (class->image, sizeof (MonoClassField) * top);
1126 if (class->generic_container) {
1127 container = class->generic_container;
1128 } else if (class->generic_class) {
1129 gklass = class->generic_class->container_class;
1130 container = gklass->generic_container;
1131 g_assert (container);
1133 mono_class_setup_fields (gklass);
1135 if (gklass->exception_type) {
1136 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1142 * Fetch all the field information.
1144 for (i = 0; i < top; i++){
1145 int idx = class->field.first + i;
1146 field = &class->fields [i];
1148 field->parent = class;
1150 if (class->generic_class) {
1151 MonoClassField *gfield = &gklass->fields [i];
1153 field->name = mono_field_get_name (gfield);
1154 /*This memory must come from the image mempool as we don't have a chance to free it.*/
1155 field->type = mono_class_inflate_generic_type_no_copy (class->image, gfield->type, mono_class_get_context (class));
1156 g_assert (field->type->attrs == gfield->type->attrs);
1157 if (mono_field_is_deleted (field))
1159 field->offset = gfield->offset;
1162 guint32 cols [MONO_FIELD_SIZE];
1164 /* class->field.first and idx points into the fieldptr table */
1165 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
1166 /* The name is needed for fieldrefs */
1167 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
1168 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
1169 mono_metadata_decode_value (sig, &sig);
1170 /* FIELD signature == 0x06 */
1171 g_assert (*sig == 0x06);
1172 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
1174 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1177 if (mono_field_is_deleted (field))
1179 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1181 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
1182 field->offset = offset;
1183 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
1184 g_warning ("%s not initialized correctly (missing field layout info for %s)",
1185 class->name, mono_field_get_name (field));
1189 /* Only do these checks if we still think this type is blittable */
1190 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1191 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
1194 MonoClass *field_class = mono_class_from_mono_type (field->type);
1196 mono_class_setup_fields (field_class);
1197 if (!field_class || !field_class->blittable)
1202 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1203 class->cast_class = class->element_class = mono_class_from_mono_type (field->type);
1204 blittable = class->element_class->blittable;
1207 /* The def_value of fields is compute lazily during vtable creation */
1210 if (class == mono_defaults.string_class)
1213 class->blittable = blittable;
1215 if (class->enumtype && !mono_class_enum_basetype (class)) {
1216 if (!((strcmp (class->name, "Enum") == 0) && (strcmp (class->name_space, "System") == 0)))
1219 if (explicit_size && real_size) {
1220 class->instance_size = MAX (real_size, class->instance_size);
1223 if (class->exception_type)
1225 mono_class_layout_fields (class);
1229 * mono_class_setup_fields_locking:
1230 * @class: The class to initialize
1232 * Initializes the class->fields array of fields.
1233 * Aquires the loader lock.
1236 mono_class_setup_fields_locking (MonoClass *class)
1238 mono_loader_lock ();
1239 mono_class_setup_fields (class);
1240 mono_loader_unlock ();
1244 * mono_class_has_references:
1246 * Returns whenever @klass->has_references is set, initializing it if needed.
1247 * Aquires the loader lock.
1250 mono_class_has_references (MonoClass *klass)
1252 if (klass->init_pending) {
1253 /* Be conservative */
1256 mono_class_init (klass);
1258 return klass->has_references;
1262 /* useful until we keep track of gc-references in corlib etc. */
1264 #define IS_GC_REFERENCE(t) FALSE
1266 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1270 * mono_type_get_basic_type_from_generic:
1273 * Returns a closed type corresponding to the possibly open type
1277 mono_type_get_basic_type_from_generic (MonoType *type)
1279 /* When we do generic sharing we let type variables stand for reference types. */
1280 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1281 return &mono_defaults.object_class->byval_arg;
1286 * mono_class_layout_fields:
1289 * Compute the placement of fields inside an object or struct, according to
1290 * the layout rules and set the following fields in @class:
1291 * - has_references (if the class contains instance references firled or structs that contain references)
1292 * - has_static_refs (same, but for static fields)
1293 * - instance_size (size of the object in memory)
1294 * - class_size (size needed for the static fields)
1295 * - size_inited (flag set when the instance_size is set)
1297 * LOCKING: this is supposed to be called with the loader lock held.
1300 mono_class_layout_fields (MonoClass *class)
1303 const int top = class->field.count;
1304 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1305 guint32 pass, passes, real_size;
1306 gboolean gc_aware_layout = FALSE;
1307 MonoClassField *field;
1310 * When we do generic sharing we need to have layout
1311 * information for open generic classes (either with a generic
1312 * context containing type variables or with a generic
1313 * container), so we don't return in that case anymore.
1317 * Enable GC aware auto layout: in this mode, reference
1318 * fields are grouped together inside objects, increasing collector
1320 * Requires that all classes whose layout is known to native code be annotated
1321 * with [StructLayout (LayoutKind.Sequential)]
1322 * Value types have gc_aware_layout disabled by default, as per
1323 * what the default is for other runtimes.
1325 /* corlib is missing [StructLayout] directives in many places */
1326 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1327 if (class->image != mono_defaults.corlib &&
1328 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1329 gc_aware_layout = TRUE;
1330 /* from System.dll, used in metadata/process.h */
1331 if (strcmp (class->name, "ProcessStartInfo") == 0)
1332 gc_aware_layout = FALSE;
1335 /* Compute klass->has_references */
1337 * Process non-static fields first, since static fields might recursively
1338 * refer to the class itself.
1340 for (i = 0; i < top; i++) {
1343 field = &class->fields [i];
1345 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1346 ftype = mono_type_get_underlying_type (field->type);
1347 ftype = mono_type_get_basic_type_from_generic (ftype);
1348 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1349 class->has_references = TRUE;
1353 for (i = 0; i < top; i++) {
1356 field = &class->fields [i];
1358 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1359 ftype = mono_type_get_underlying_type (field->type);
1360 ftype = mono_type_get_basic_type_from_generic (ftype);
1361 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1362 class->has_static_refs = TRUE;
1366 for (i = 0; i < top; i++) {
1369 field = &class->fields [i];
1371 ftype = mono_type_get_underlying_type (field->type);
1372 ftype = mono_type_get_basic_type_from_generic (ftype);
1373 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1374 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1375 class->has_static_refs = TRUE;
1377 class->has_references = TRUE;
1382 * Compute field layout and total size (not considering static fields)
1386 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1387 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1389 if (gc_aware_layout)
1394 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1398 real_size = class->parent->instance_size;
1400 real_size = sizeof (MonoObject);
1402 for (pass = 0; pass < passes; ++pass) {
1403 for (i = 0; i < top; i++){
1408 field = &class->fields [i];
1410 if (mono_field_is_deleted (field))
1412 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1415 ftype = mono_type_get_underlying_type (field->type);
1416 ftype = mono_type_get_basic_type_from_generic (ftype);
1417 if (gc_aware_layout) {
1418 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1427 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1428 (strcmp (mono_field_get_name (field), "$PRIVATE$") == 0)) {
1429 /* This field is a hack inserted by MCS to empty structures */
1433 size = mono_type_size (field->type, &align);
1435 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1436 align = class->packing_size ? MIN (class->packing_size, align): align;
1437 /* if the field has managed references, we need to force-align it
1440 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1441 align = MAX (align, sizeof (gpointer));
1443 class->min_align = MAX (align, class->min_align);
1444 field->offset = real_size;
1445 field->offset += align - 1;
1446 field->offset &= ~(align - 1);
1447 real_size = field->offset + size;
1450 class->instance_size = MAX (real_size, class->instance_size);
1452 if (class->instance_size & (class->min_align - 1)) {
1453 class->instance_size += class->min_align - 1;
1454 class->instance_size &= ~(class->min_align - 1);
1458 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1460 for (i = 0; i < top; i++) {
1465 field = &class->fields [i];
1468 * There must be info about all the fields in a type if it
1469 * uses explicit layout.
1472 if (mono_field_is_deleted (field))
1474 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1477 size = mono_type_size (field->type, &align);
1478 class->min_align = MAX (align, class->min_align);
1481 * When we get here, field->offset is already set by the
1482 * loader (for either runtime fields or fields loaded from metadata).
1483 * The offset is from the start of the object: this works for both
1484 * classes and valuetypes.
1486 field->offset += sizeof (MonoObject);
1487 ftype = mono_type_get_underlying_type (field->type);
1488 ftype = mono_type_get_basic_type_from_generic (ftype);
1489 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1490 if (field->offset % sizeof (gpointer)) {
1491 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1498 real_size = MAX (real_size, size + field->offset);
1500 class->instance_size = MAX (real_size, class->instance_size);
1504 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1506 * For small structs, set min_align to at least the struct size to improve
1507 * performance, and since the JIT memset/memcpy code assumes this and generates
1508 * unaligned accesses otherwise. See #78990 for a testcase.
1510 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1511 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1514 class->size_inited = 1;
1517 * Compute static field layout and size
1519 for (i = 0; i < top; i++){
1523 field = &class->fields [i];
1525 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1527 if (mono_field_is_deleted (field))
1530 size = mono_type_size (field->type, &align);
1531 field->offset = class->sizes.class_size;
1532 field->offset += align - 1;
1533 field->offset &= ~(align - 1);
1534 class->sizes.class_size = field->offset + size;
1539 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
1543 method = (MonoMethod *) mono_image_alloc0 (class->image, sizeof (MonoMethodPInvoke));
1544 method->klass = class;
1545 method->flags = METHOD_ATTRIBUTE_PUBLIC;
1546 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
1547 method->signature = sig;
1548 method->name = name;
1551 if (name [0] == '.') {
1552 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
1554 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
1560 * mono_class_setup_methods:
1563 * Initializes the 'methods' array in the klass.
1564 * Calling this method should be avoided if possible since it allocates a lot
1565 * of long-living MonoMethod structures.
1566 * Methods belonging to an interface are assigned a sequential slot starting
1570 mono_class_setup_methods (MonoClass *class)
1573 MonoMethod **methods;
1578 mono_loader_lock ();
1580 if (class->methods) {
1581 mono_loader_unlock ();
1585 if (class->generic_class) {
1586 MonoClass *gklass = class->generic_class->container_class;
1588 mono_class_init (gklass);
1589 mono_class_setup_methods (gklass);
1591 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1592 class->method.count = gklass->method.count;
1593 methods = g_new0 (MonoMethod *, class->method.count + 1);
1595 for (i = 0; i < class->method.count; i++) {
1596 methods [i] = mono_class_inflate_generic_method_full (
1597 gklass->methods [i], class, mono_class_get_context (class));
1599 } else if (class->rank) {
1600 MonoMethod *amethod;
1601 MonoMethodSignature *sig;
1602 int count_generic = 0, first_generic = 0;
1605 class->method.count = 3 + (class->rank > 1? 2: 1);
1607 mono_class_setup_interfaces (class);
1609 if (class->interface_count) {
1610 count_generic = generic_array_methods (class);
1611 first_generic = class->method.count;
1612 class->method.count += class->interface_count * count_generic;
1615 methods = mono_image_alloc0 (class->image, sizeof (MonoMethod*) * class->method.count);
1617 sig = mono_metadata_signature_alloc (class->image, class->rank);
1618 sig->ret = &mono_defaults.void_class->byval_arg;
1619 sig->pinvoke = TRUE;
1620 sig->hasthis = TRUE;
1621 for (i = 0; i < class->rank; ++i)
1622 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1624 amethod = create_array_method (class, ".ctor", sig);
1625 methods [method_num++] = amethod;
1626 if (class->rank > 1) {
1627 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
1628 sig->ret = &mono_defaults.void_class->byval_arg;
1629 sig->pinvoke = TRUE;
1630 sig->hasthis = TRUE;
1631 for (i = 0; i < class->rank * 2; ++i)
1632 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1634 amethod = create_array_method (class, ".ctor", sig);
1635 methods [method_num++] = amethod;
1637 /* element Get (idx11, [idx2, ...]) */
1638 sig = mono_metadata_signature_alloc (class->image, class->rank);
1639 sig->ret = &class->element_class->byval_arg;
1640 sig->pinvoke = TRUE;
1641 sig->hasthis = TRUE;
1642 for (i = 0; i < class->rank; ++i)
1643 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1644 amethod = create_array_method (class, "Get", sig);
1645 methods [method_num++] = amethod;
1646 /* element& Address (idx11, [idx2, ...]) */
1647 sig = mono_metadata_signature_alloc (class->image, class->rank);
1648 sig->ret = &class->element_class->this_arg;
1649 sig->pinvoke = TRUE;
1650 sig->hasthis = TRUE;
1651 for (i = 0; i < class->rank; ++i)
1652 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1653 amethod = create_array_method (class, "Address", sig);
1654 methods [method_num++] = amethod;
1655 /* void Set (idx11, [idx2, ...], element) */
1656 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
1657 sig->ret = &mono_defaults.void_class->byval_arg;
1658 sig->pinvoke = TRUE;
1659 sig->hasthis = TRUE;
1660 for (i = 0; i < class->rank; ++i)
1661 sig->params [i] = &mono_defaults.int32_class->byval_arg;
1662 sig->params [i] = &class->element_class->byval_arg;
1663 amethod = create_array_method (class, "Set", sig);
1664 methods [method_num++] = amethod;
1666 for (i = 0; i < class->interface_count; i++)
1667 setup_generic_array_ifaces (class, class->interfaces [i], methods, first_generic + i * count_generic);
1669 methods = mono_image_alloc (class->image, sizeof (MonoMethod*) * class->method.count);
1670 for (i = 0; i < class->method.count; ++i) {
1671 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1672 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1676 if (MONO_CLASS_IS_INTERFACE (class))
1677 for (i = 0; i < class->method.count; ++i)
1678 methods [i]->slot = i;
1680 /* Needed because of the double-checking locking pattern */
1681 mono_memory_barrier ();
1683 class->methods = methods;
1685 if (mono_debugger_class_loaded_methods_func)
1686 mono_debugger_class_loaded_methods_func (class);
1688 mono_loader_unlock ();
1692 * mono_class_get_method_by_index:
1694 * Returns class->methods [index], initializing class->methods if neccesary.
1696 * LOCKING: Acquires the loader lock.
1699 mono_class_get_method_by_index (MonoClass *class, int index)
1701 /* Avoid calling setup_methods () if possible */
1702 if (class->generic_class && !class->methods) {
1703 MonoClass *gklass = class->generic_class->container_class;
1706 m = mono_class_inflate_generic_method_full (
1707 gklass->methods [index], class, mono_class_get_context (class));
1709 * If setup_methods () is called later for this class, no duplicates are created,
1710 * since inflate_generic_method guarantees that only one instance of a method
1711 * is created for each context.
1714 mono_class_setup_methods (class);
1715 g_assert (m == class->methods [index]);
1719 mono_class_setup_methods (class);
1720 g_assert (index >= 0 && index < class->method.count);
1721 return class->methods [index];
1726 * mono_class_get_inflated_method:
1728 * Given an inflated class CLASS and a method METHOD which should be a method of
1729 * CLASS's generic definition, return the inflated method corresponding to METHOD.
1732 mono_class_get_inflated_method (MonoClass *class, MonoMethod *method)
1734 MonoClass *gklass = class->generic_class->container_class;
1737 mono_class_setup_methods (gklass);
1738 for (i = 0; i < gklass->method.count; ++i) {
1739 if (gklass->methods [i] == method) {
1741 return class->methods [i];
1743 return mono_class_inflate_generic_method_full (gklass->methods [i], class, mono_class_get_context (class));
1751 * mono_class_get_vtable_entry:
1753 * Returns class->vtable [offset], computing it if neccesary.
1754 * LOCKING: Acquires the loader lock.
1757 mono_class_get_vtable_entry (MonoClass *class, int offset)
1761 if (class->rank == 1) {
1763 * szarrays do not overwrite any methods of Array, so we can avoid
1764 * initializing their vtables in some cases.
1766 mono_class_setup_vtable (class->parent);
1767 if (offset < class->parent->vtable_size)
1768 return class->parent->vtable [offset];
1771 if (class->generic_class) {
1772 MonoClass *gklass = class->generic_class->container_class;
1773 mono_class_setup_vtable (gklass);
1774 m = gklass->vtable [offset];
1776 m = mono_class_inflate_generic_method_full (m, class, mono_class_get_context (class));
1778 mono_class_setup_vtable (class);
1779 m = class->vtable [offset];
1783 * We have to add static rgctx wrappers somewhere, we do it here,
1784 * altough it should probably be done by the JIT.
1786 if (mono_method_needs_static_rgctx_invoke (m, FALSE))
1787 m = mono_marshal_get_static_rgctx_invoke (m);
1792 mono_class_setup_properties (MonoClass *class)
1794 guint startm, endm, i, j;
1795 guint32 cols [MONO_PROPERTY_SIZE];
1796 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1797 MonoProperty *properties;
1800 if (class->ext && class->ext->properties)
1803 mono_loader_lock ();
1805 if (class->ext && class->ext->properties) {
1806 mono_loader_unlock ();
1810 mono_class_alloc_ext (class);
1812 if (class->generic_class) {
1813 MonoClass *gklass = class->generic_class->container_class;
1815 mono_class_init (gklass);
1816 mono_class_setup_properties (gklass);
1818 class->ext->property = gklass->ext->property;
1820 properties = g_new0 (MonoProperty, class->ext->property.count + 1);
1822 for (i = 0; i < class->ext->property.count; i++) {
1823 MonoProperty *prop = &properties [i];
1825 *prop = gklass->ext->properties [i];
1828 prop->get = mono_class_inflate_generic_method_full (
1829 prop->get, class, mono_class_get_context (class));
1831 prop->set = mono_class_inflate_generic_method_full (
1832 prop->set, class, mono_class_get_context (class));
1834 prop->parent = class;
1837 class->ext->property.first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1838 class->ext->property.count = last - class->ext->property.first;
1840 if (class->ext->property.count)
1841 mono_class_setup_methods (class);
1843 properties = mono_image_alloc0 (class->image, sizeof (MonoProperty) * class->ext->property.count);
1844 for (i = class->ext->property.first; i < last; ++i) {
1845 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
1846 properties [i - class->ext->property.first].parent = class;
1847 properties [i - class->ext->property.first].attrs = cols [MONO_PROPERTY_FLAGS];
1848 properties [i - class->ext->property.first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
1850 startm = mono_metadata_methods_from_property (class->image, i, &endm);
1851 for (j = startm; j < endm; ++j) {
1854 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1856 if (class->image->uncompressed_metadata)
1857 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1858 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1860 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1862 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1863 case METHOD_SEMANTIC_SETTER:
1864 properties [i - class->ext->property.first].set = method;
1866 case METHOD_SEMANTIC_GETTER:
1867 properties [i - class->ext->property.first].get = method;
1875 /*Flush any pending writes as we do double checked locking on class->properties */
1876 mono_memory_barrier ();
1878 /* Leave this assignment as the last op in the function */
1879 class->ext->properties = properties;
1881 mono_loader_unlock ();
1885 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
1887 MonoMethod **om, **retval;
1890 for (om = methods, count = 0; *om; ++om, ++count)
1893 retval = g_new0 (MonoMethod*, count + 1);
1895 for (om = methods, count = 0; *om; ++om, ++count)
1896 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
1902 mono_class_setup_events (MonoClass *class)
1904 guint startm, endm, i, j;
1905 guint32 cols [MONO_EVENT_SIZE];
1906 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1910 if (class->ext && class->ext->events)
1913 mono_loader_lock ();
1915 if (class->ext && class->ext->events) {
1916 mono_loader_unlock ();
1920 mono_class_alloc_ext (class);
1922 if (class->generic_class) {
1923 MonoClass *gklass = class->generic_class->container_class;
1924 MonoGenericContext *context;
1926 mono_class_setup_events (gklass);
1927 class->ext->event = gklass->ext->event;
1929 class->ext->events = g_new0 (MonoEvent, class->ext->event.count);
1931 if (class->ext->event.count)
1932 context = mono_class_get_context (class);
1934 for (i = 0; i < class->ext->event.count; i++) {
1935 MonoEvent *event = &class->ext->events [i];
1936 MonoEvent *gevent = &gklass->ext->events [i];
1938 event->parent = class;
1939 event->name = gevent->name;
1940 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
1941 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
1942 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
1943 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
1944 event->attrs = gevent->attrs;
1947 mono_loader_unlock ();
1951 class->ext->event.first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1952 class->ext->event.count = last - class->ext->event.first;
1954 if (class->ext->event.count)
1955 mono_class_setup_methods (class);
1957 events = mono_image_alloc0 (class->image, sizeof (MonoEvent) * class->ext->event.count);
1958 for (i = class->ext->event.first; i < last; ++i) {
1959 MonoEvent *event = &events [i - class->ext->event.first];
1961 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
1962 event->parent = class;
1963 event->attrs = cols [MONO_EVENT_FLAGS];
1964 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
1966 startm = mono_metadata_methods_from_event (class->image, i, &endm);
1967 for (j = startm; j < endm; ++j) {
1970 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1972 if (class->image->uncompressed_metadata)
1973 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1974 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1976 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1978 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1979 case METHOD_SEMANTIC_ADD_ON:
1980 event->add = method;
1982 case METHOD_SEMANTIC_REMOVE_ON:
1983 event->remove = method;
1985 case METHOD_SEMANTIC_FIRE:
1986 event->raise = method;
1988 case METHOD_SEMANTIC_OTHER: {
1991 if (event->other == NULL) {
1992 event->other = g_new0 (MonoMethod*, 2);
1994 while (event->other [n])
1996 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
1998 event->other [n] = method;
1999 /* NULL terminated */
2000 event->other [n + 1] = NULL;
2008 /*Flush any pending writes as we do double checked locking on class->properties */
2009 mono_memory_barrier ();
2011 /* Leave this assignment as the last op in the function */
2012 class->ext->events = events;
2014 mono_loader_unlock ();
2018 * Global pool of interface IDs, represented as a bitset.
2019 * LOCKING: this is supposed to be accessed with the loader lock held.
2021 static MonoBitSet *global_interface_bitset = NULL;
2024 * mono_unload_interface_ids:
2025 * @bitset: bit set of interface IDs
2027 * When an image is unloaded, the interface IDs associated with
2028 * the image are put back in the global pool of IDs so the numbers
2032 mono_unload_interface_ids (MonoBitSet *bitset)
2034 mono_loader_lock ();
2035 mono_bitset_sub (global_interface_bitset, bitset);
2036 mono_loader_unlock ();
2040 * mono_get_unique_iid:
2043 * Assign a unique integer ID to the interface represented by @class.
2044 * The ID will positive and as small as possible.
2045 * LOCKING: this is supposed to be called with the loader lock held.
2046 * Returns: the new ID.
2049 mono_get_unique_iid (MonoClass *class)
2053 g_assert (MONO_CLASS_IS_INTERFACE (class));
2055 if (!global_interface_bitset) {
2056 global_interface_bitset = mono_bitset_new (128, 0);
2059 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
2061 int old_size = mono_bitset_size (global_interface_bitset);
2062 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
2063 mono_bitset_free (global_interface_bitset);
2064 global_interface_bitset = new_set;
2067 mono_bitset_set (global_interface_bitset, iid);
2068 /* set the bit also in the per-image set */
2069 if (class->image->interface_bitset) {
2070 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
2071 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
2072 mono_bitset_free (class->image->interface_bitset);
2073 class->image->interface_bitset = new_set;
2076 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
2078 mono_bitset_set (class->image->interface_bitset, iid);
2080 if (mono_print_vtable) {
2082 char *type_name = mono_type_full_name (&class->byval_arg);
2083 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
2084 generic_id = class->generic_class->context.class_inst->id;
2085 g_assert (generic_id != 0);
2089 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
2093 g_assert (iid <= 65535);
2098 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res)
2103 mono_class_setup_interfaces (klass);
2105 for (i = 0; i < klass->interface_count; i++) {
2106 ic = klass->interfaces [i];
2109 *res = g_ptr_array_new ();
2110 g_ptr_array_add (*res, ic);
2111 mono_class_init (ic);
2113 collect_implemented_interfaces_aux (ic, res);
2118 mono_class_get_implemented_interfaces (MonoClass *klass)
2120 GPtrArray *res = NULL;
2122 collect_implemented_interfaces_aux (klass, &res);
2127 compare_interface_ids (const void *p_key, const void *p_element) {
2128 const MonoClass *key = p_key;
2129 const MonoClass *element = *(MonoClass**) p_element;
2131 return (key->interface_id - element->interface_id);
2135 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
2136 MonoClass **result = bsearch (
2138 klass->interfaces_packed,
2139 klass->interface_offsets_count,
2140 sizeof (MonoClass *),
2141 compare_interface_ids);
2143 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
2150 print_implemented_interfaces (MonoClass *klass) {
2151 GPtrArray *ifaces = NULL;
2153 int ancestor_level = 0;
2155 printf ("Packed interface table for class %s has size %d\n", klass->name, klass->interface_offsets_count);
2156 for (i = 0; i < klass->interface_offsets_count; i++)
2157 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2158 klass->interfaces_packed [i]->interface_id,
2159 klass->interface_offsets_packed [i],
2160 klass->interfaces_packed [i]->method.count,
2161 klass->interfaces_packed [i]->name_space,
2162 klass->interfaces_packed [i]->name );
2163 printf ("Interface flags: ");
2164 for (i = 0; i <= klass->max_interface_id; i++)
2165 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
2166 printf ("(%d,T)", i);
2168 printf ("(%d,F)", i);
2170 printf ("Dump interface flags:");
2171 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
2172 printf (" %02X", klass->interface_bitmap [i]);
2174 while (klass != NULL) {
2175 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
2176 ifaces = mono_class_get_implemented_interfaces (klass);
2178 for (i = 0; i < ifaces->len; i++) {
2179 MonoClass *ic = g_ptr_array_index (ifaces, i);
2180 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
2181 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
2183 mono_class_interface_offset (klass, ic),
2188 g_ptr_array_free (ifaces, TRUE);
2191 klass = klass->parent;
2196 inflate_class_one_arg (MonoClass *gtype, MonoClass *arg0)
2199 args [0] = &arg0->byval_arg;
2201 return mono_class_bind_generic_parameters (gtype, 1, args, FALSE);
2205 array_class_get_if_rank (MonoClass *class, guint rank)
2207 return rank ? mono_array_class_get (class, rank) : class;
2211 fill_valuetype_array_derived_types (MonoClass **valuetype_types, MonoClass *eclass, int rank)
2213 valuetype_types [0] = eclass;
2214 if (eclass == mono_defaults.int16_class)
2215 valuetype_types [1] = mono_defaults.uint16_class;
2216 else if (eclass == mono_defaults.uint16_class)
2217 valuetype_types [1] = mono_defaults.int16_class;
2218 else if (eclass == mono_defaults.int32_class)
2219 valuetype_types [1] = mono_defaults.uint32_class;
2220 else if (eclass == mono_defaults.uint32_class)
2221 valuetype_types [1] = mono_defaults.int32_class;
2222 else if (eclass == mono_defaults.int64_class)
2223 valuetype_types [1] = mono_defaults.uint64_class;
2224 else if (eclass == mono_defaults.uint64_class)
2225 valuetype_types [1] = mono_defaults.int64_class;
2226 else if (eclass == mono_defaults.byte_class)
2227 valuetype_types [1] = mono_defaults.sbyte_class;
2228 else if (eclass == mono_defaults.sbyte_class)
2229 valuetype_types [1] = mono_defaults.byte_class;
2230 else if (eclass->enumtype && mono_class_enum_basetype (eclass))
2231 valuetype_types [1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass));
2234 /* this won't be needed once bug #325495 is completely fixed
2235 * though we'll need something similar to know which interfaces to allow
2236 * in arrays when they'll be lazyly created
2238 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2239 * MS returns diferrent types based on which instance is called. For example:
2240 * object obj = new byte[10][];
2241 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2242 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2245 * Fixing this should kill quite some code, save some bits and improve compatbility.
2248 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
2250 MonoClass *eclass = class->element_class;
2251 static MonoClass* generic_icollection_class = NULL;
2252 static MonoClass* generic_ienumerable_class = NULL;
2253 static MonoClass* generic_ienumerator_class = NULL;
2254 MonoClass *valuetype_types[2] = { NULL, NULL };
2255 MonoClass **interfaces = NULL;
2256 int i, interface_count, real_count, original_rank;
2258 gboolean internal_enumerator;
2259 gboolean eclass_is_valuetype;
2261 if (!mono_defaults.generic_ilist_class) {
2265 internal_enumerator = FALSE;
2266 eclass_is_valuetype = FALSE;
2267 original_rank = eclass->rank;
2268 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
2269 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
2271 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2273 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
2274 original_rank = eclass->rank;
2275 eclass = eclass->element_class;
2276 internal_enumerator = TRUE;
2277 *is_enumerator = TRUE;
2285 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2286 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2288 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
2290 if (!generic_icollection_class) {
2291 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
2292 "System.Collections.Generic", "ICollection`1");
2293 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
2294 "System.Collections.Generic", "IEnumerable`1");
2295 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
2296 "System.Collections.Generic", "IEnumerator`1");
2299 mono_class_init (eclass);
2302 * Arrays in 2.0 need to implement a number of generic interfaces
2303 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2304 * on the element class). We collect the types needed to build the
2305 * instantiations in interfaces at intervals of 3, because 3 are
2306 * the generic interfaces needed to implement.
2308 if (eclass->valuetype) {
2309 fill_valuetype_array_derived_types (valuetype_types, eclass, original_rank);
2311 /* IList, ICollection, IEnumerable */
2312 real_count = interface_count = valuetype_types [1] ? 6 : 3;
2313 if (internal_enumerator) {
2315 if (valuetype_types [1])
2319 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2320 interfaces [0] = valuetype_types [0];
2321 if (valuetype_types [1])
2322 interfaces [3] = valuetype_types [1];
2324 eclass_is_valuetype = TRUE;
2327 int idepth = eclass->idepth;
2328 if (!internal_enumerator)
2330 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
2331 /* we add object for interfaces and the supertypes for the other
2332 * types. The last of the supertypes is the element class itself which we
2333 * already created the explicit interfaces for (so we include it for IEnumerator
2334 * and exclude it for arrays).
2336 if (MONO_CLASS_IS_INTERFACE (eclass))
2339 interface_count += idepth;
2340 if (eclass->rank && eclass->element_class->valuetype) {
2341 fill_valuetype_array_derived_types (valuetype_types, eclass->element_class, original_rank);
2342 if (valuetype_types [1])
2345 /* IList, ICollection, IEnumerable */
2346 interface_count *= 3;
2347 real_count = interface_count;
2348 if (internal_enumerator) {
2349 real_count += (MONO_CLASS_IS_INTERFACE (eclass) ? 1 : idepth) + eclass->interface_offsets_count;
2350 if (valuetype_types [1])
2353 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
2354 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2355 interfaces [0] = mono_defaults.object_class;
2359 for (i = 0; i < idepth; i++) {
2360 mono_class_init (eclass->supertypes [i]);
2361 interfaces [j] = eclass->supertypes [i];
2365 if (all_interfaces) {
2366 for (i = 0; i < eclass->interface_offsets_count; i++) {
2367 interfaces [j] = eclass->interfaces_packed [i];
2371 for (i = 0; i < eclass->interface_count; i++) {
2372 interfaces [j] = eclass->interfaces [i];
2376 if (valuetype_types [1]) {
2377 interfaces [j] = array_class_get_if_rank (valuetype_types [1], original_rank);
2382 /* instantiate the generic interfaces */
2383 for (i = 0; i < interface_count; i += 3) {
2384 MonoClass *iface = interfaces [i];
2386 interfaces [i + 0] = inflate_class_one_arg (mono_defaults.generic_ilist_class, iface);
2387 interfaces [i + 1] = inflate_class_one_arg (generic_icollection_class, iface);
2388 interfaces [i + 2] = inflate_class_one_arg (generic_ienumerable_class, iface);
2390 if (internal_enumerator) {
2392 /* instantiate IEnumerator<iface> */
2393 for (i = 0; i < interface_count; i++) {
2394 interfaces [i] = inflate_class_one_arg (generic_ienumerator_class, interfaces [i]);
2396 j = interface_count;
2397 if (!eclass_is_valuetype) {
2398 if (MONO_CLASS_IS_INTERFACE (eclass)) {
2399 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, mono_defaults.object_class);
2402 for (i = 0; i < eclass->idepth; i++) {
2403 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->supertypes [i]);
2407 for (i = 0; i < eclass->interface_offsets_count; i++) {
2408 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, eclass->interfaces_packed [i]);
2412 interfaces [j++] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [0], original_rank));
2414 if (valuetype_types [1])
2415 interfaces [j] = inflate_class_one_arg (generic_ienumerator_class, array_class_get_if_rank (valuetype_types [1], original_rank));
2419 char *type_name = mono_type_get_name_full (&class->byval_arg, 0);
2420 for (i = 0; i < real_count; ++i) {
2421 char *name = mono_type_get_name_full (&interfaces [i]->byval_arg, 0);
2422 g_print ("%s implements %s\n", type_name, name);
2433 find_array_interface (MonoClass *klass, const char *name)
2436 for (i = 0; i < klass->interface_count; ++i) {
2437 if (strcmp (klass->interfaces [i]->name, name) == 0)
2444 * LOCKING: this is supposed to be called with the loader lock held.
2447 setup_interface_offsets (MonoClass *class, int cur_slot)
2451 MonoClass **interfaces_full;
2452 int *interface_offsets_full;
2454 int interface_offsets_count;
2455 MonoClass **array_interfaces;
2456 int num_array_interfaces;
2457 int is_enumerator = FALSE;
2460 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
2461 * implicit interfaces have the property that they are assigned the same slot in the
2462 * vtables for compatible interfaces
2464 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
2466 /* compute maximum number of slots and maximum interface id */
2468 for (k = class; k ; k = k->parent) {
2469 for (i = 0; i < k->interface_count; i++) {
2470 ic = k->interfaces [i];
2473 mono_class_init (ic);
2475 if (max_iid < ic->interface_id)
2476 max_iid = ic->interface_id;
2478 ifaces = mono_class_get_implemented_interfaces (k);
2480 for (i = 0; i < ifaces->len; ++i) {
2481 ic = g_ptr_array_index (ifaces, i);
2482 if (max_iid < ic->interface_id)
2483 max_iid = ic->interface_id;
2485 g_ptr_array_free (ifaces, TRUE);
2488 for (i = 0; i < num_array_interfaces; ++i) {
2489 ic = array_interfaces [i];
2490 mono_class_init (ic);
2491 if (max_iid < ic->interface_id)
2492 max_iid = ic->interface_id;
2495 if (MONO_CLASS_IS_INTERFACE (class)) {
2496 if (max_iid < class->interface_id)
2497 max_iid = class->interface_id;
2499 class->max_interface_id = max_iid;
2500 /* compute vtable offset for interfaces */
2501 interfaces_full = g_malloc (sizeof (MonoClass*) * (max_iid + 1));
2502 interface_offsets_full = g_malloc (sizeof (int) * (max_iid + 1));
2504 for (i = 0; i <= max_iid; i++) {
2505 interfaces_full [i] = NULL;
2506 interface_offsets_full [i] = -1;
2509 ifaces = mono_class_get_implemented_interfaces (class);
2511 for (i = 0; i < ifaces->len; ++i) {
2512 ic = g_ptr_array_index (ifaces, i);
2513 interfaces_full [ic->interface_id] = ic;
2514 interface_offsets_full [ic->interface_id] = cur_slot;
2515 cur_slot += ic->method.count;
2517 g_ptr_array_free (ifaces, TRUE);
2520 for (k = class->parent; k ; k = k->parent) {
2521 ifaces = mono_class_get_implemented_interfaces (k);
2523 for (i = 0; i < ifaces->len; ++i) {
2524 ic = g_ptr_array_index (ifaces, i);
2526 if (interface_offsets_full [ic->interface_id] == -1) {
2527 int io = mono_class_interface_offset (k, ic);
2531 interfaces_full [ic->interface_id] = ic;
2532 interface_offsets_full [ic->interface_id] = io;
2535 g_ptr_array_free (ifaces, TRUE);
2539 if (MONO_CLASS_IS_INTERFACE (class)) {
2540 interfaces_full [class->interface_id] = class;
2541 interface_offsets_full [class->interface_id] = cur_slot;
2544 if (num_array_interfaces) {
2545 if (is_enumerator) {
2546 int ienumerator_offset;
2547 int ienumerator_idx = find_array_interface (class, "IEnumerator`1");
2548 ienumerator_offset = interface_offsets_full [class->interfaces [ienumerator_idx]->interface_id];
2549 for (i = 0; i < num_array_interfaces; ++i) {
2550 ic = array_interfaces [i];
2551 interfaces_full [ic->interface_id] = ic;
2552 if (strcmp (ic->name, "IEnumerator`1") == 0)
2553 interface_offsets_full [ic->interface_id] = ienumerator_offset;
2555 g_assert_not_reached ();
2556 /*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);*/
2559 int ilist_offset, icollection_offset, ienumerable_offset;
2560 int ilist_iface_idx = find_array_interface (class, "IList`1");
2561 int icollection_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "ICollection`1");
2562 int ienumerable_iface_idx = find_array_interface (class->interfaces [ilist_iface_idx], "IEnumerable`1");
2563 ilist_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interface_id];
2564 icollection_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [icollection_iface_idx]->interface_id];
2565 ienumerable_offset = interface_offsets_full [class->interfaces [ilist_iface_idx]->interfaces [ienumerable_iface_idx]->interface_id];
2566 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
2567 for (i = 0; i < num_array_interfaces; ++i) {
2568 ic = array_interfaces [i];
2569 interfaces_full [ic->interface_id] = ic;
2570 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
2571 interface_offsets_full [ic->interface_id] = ilist_offset;
2572 else if (strcmp (ic->name, "ICollection`1") == 0)
2573 interface_offsets_full [ic->interface_id] = icollection_offset;
2574 else if (strcmp (ic->name, "IEnumerable`1") == 0)
2575 interface_offsets_full [ic->interface_id] = ienumerable_offset;
2577 g_assert_not_reached ();
2578 /*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);*/
2583 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2584 if (interface_offsets_full [i] != -1) {
2585 interface_offsets_count ++;
2590 * We might get called twice: once from mono_class_init () then once from
2591 * mono_class_setup_vtable ().
2593 if (class->interfaces_packed) {
2594 g_assert (class->interface_offsets_count == interface_offsets_count);
2596 class->interface_offsets_count = interface_offsets_count;
2597 class->interfaces_packed = mono_image_alloc (class->image, sizeof (MonoClass*) * interface_offsets_count);
2598 class->interface_offsets_packed = mono_image_alloc (class->image, sizeof (guint16) * interface_offsets_count);
2599 class->interface_bitmap = mono_image_alloc0 (class->image, (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0));
2600 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2601 if (interface_offsets_full [i] != -1) {
2602 class->interface_bitmap [i >> 3] |= (1 << (i & 7));
2603 class->interfaces_packed [interface_offsets_count] = interfaces_full [i];
2604 class->interface_offsets_packed [interface_offsets_count] = interface_offsets_full [i];
2605 /*if (num_array_interfaces)
2606 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]);*/
2607 interface_offsets_count ++;
2612 g_free (interfaces_full);
2613 g_free (interface_offsets_full);
2614 g_free (array_interfaces);
2616 //printf ("JUST DONE: ");
2617 //print_implemented_interfaces (class);
2623 * Setup interface offsets for interfaces.
2625 * - class->max_interface_id
2626 * - class->interface_offsets_count
2627 * - class->interfaces_packed
2628 * - class->interface_offsets_packed
2629 * - class->interface_bitmap
2632 mono_class_setup_interface_offsets (MonoClass *class)
2634 mono_loader_lock ();
2636 setup_interface_offsets (class, 0);
2638 mono_loader_unlock ();
2642 * mono_class_setup_vtable:
2644 * Creates the generic vtable of CLASS.
2645 * Initializes the following fields in MonoClass:
2648 * Plus all the fields initialized by setup_interface_offsets ().
2649 * If there is an error during vtable construction, class->exception_type is set.
2651 * LOCKING: Acquires the loader lock.
2654 mono_class_setup_vtable (MonoClass *class)
2656 MonoMethod **overrides;
2657 MonoGenericContext *context;
2666 if (mono_debug_using_mono_debugger ())
2667 /* The debugger currently depends on this */
2668 mono_class_setup_methods (class);
2670 if (MONO_CLASS_IS_INTERFACE (class)) {
2671 /* This sets method->slot for all methods if this is an interface */
2672 mono_class_setup_methods (class);
2676 mono_loader_lock ();
2678 if (class->vtable) {
2679 mono_loader_unlock ();
2683 mono_stats.generic_vtable_count ++;
2685 if (class->generic_class) {
2686 context = mono_class_get_context (class);
2687 type_token = class->generic_class->container_class->type_token;
2689 context = (MonoGenericContext *) class->generic_container;
2690 type_token = class->type_token;
2693 if (class->image->dynamic) {
2694 if (class->generic_class) {
2695 MonoClass *gklass = class->generic_class->container_class;
2697 mono_reflection_get_dynamic_overrides (gklass, &overrides, &onum);
2698 for (i = 0; i < onum; ++i) {
2699 MonoMethod *override = overrides [(i * 2) + 1];
2700 MonoMethod *inflated = NULL;
2703 for (j = 0; j < class->method.count; ++j) {
2704 if (gklass->methods [j] == override) {
2705 inflated = class->methods [j];
2709 g_assert (inflated);
2711 overrides [(i * 2) + 1] = inflated;
2714 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
2717 /* The following call fails if there are missing methods in the type */
2718 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
2722 mono_class_setup_vtable_general (class, overrides, onum);
2726 mono_loader_unlock ();
2731 #define DEBUG_INTERFACE_VTABLE_CODE 0
2732 #define TRACE_INTERFACE_VTABLE_CODE 0
2733 #define VERIFY_INTERFACE_VTABLE_CODE 0
2735 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2736 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
2740 #define DEBUG_INTERFACE_VTABLE(stmt)
2743 #if TRACE_INTERFACE_VTABLE_CODE
2744 #define TRACE_INTERFACE_VTABLE(stmt) do {\
2748 #define TRACE_INTERFACE_VTABLE(stmt)
2751 #if VERIFY_INTERFACE_VTABLE_CODE
2752 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
2756 #define VERIFY_INTERFACE_VTABLE(stmt)
2760 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2762 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
2766 GString *res = g_string_new ("");
2768 g_string_append_c (res, '(');
2769 for (i = 0; i < sig->param_count; ++i) {
2771 g_string_append_c (res, ',');
2772 mono_type_get_desc (res, sig->params [i], include_namespace);
2774 g_string_append (res, ")=>");
2775 if (sig->ret != NULL) {
2776 mono_type_get_desc (res, sig->ret, include_namespace);
2778 g_string_append (res, "NULL");
2781 g_string_free (res, FALSE);
2785 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
2786 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
2787 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
2788 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
2796 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) {
2797 if (strcmp (im->name, cm->name) == 0) {
2798 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
2799 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
2802 if (! slot_is_empty) {
2803 if (require_newslot) {
2804 if (! interface_is_explicitly_implemented_by_class) {
2805 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
2808 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2809 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
2813 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
2816 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2817 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
2818 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2819 TRACE_INTERFACE_VTABLE (printf ("]"));
2822 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
2823 /* CAS - SecurityAction.InheritanceDemand on interface */
2824 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2825 mono_secman_inheritancedemand_method (cm, im);
2828 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2829 mono_security_core_clr_check_override (class, cm, im);
2830 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
2833 MonoClass *ic = im->klass;
2834 const char *ic_name_space = ic->name_space;
2835 const char *ic_name = ic->name;
2838 if (! require_newslot) {
2839 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
2842 if (cm->klass->rank == 0) {
2843 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
2846 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2847 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
2848 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2849 TRACE_INTERFACE_VTABLE (printf ("]"));
2852 if (mono_class_get_image (ic) != mono_defaults.corlib) {
2853 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
2856 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
2857 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
2860 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
2861 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
2865 subname = strstr (cm->name, ic_name_space);
2866 if (subname != cm->name) {
2867 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
2870 subname += strlen (ic_name_space);
2871 if (subname [0] != '.') {
2872 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
2876 if (strstr (subname, ic_name) != subname) {
2877 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
2880 subname += strlen (ic_name);
2881 if (subname [0] != '.') {
2882 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
2886 if (strcmp (subname, im->name) != 0) {
2887 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
2891 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
2892 /* CAS - SecurityAction.InheritanceDemand on interface */
2893 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2894 mono_secman_inheritancedemand_method (cm, im);
2897 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2898 mono_security_core_clr_check_override (class, cm, im);
2900 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
2905 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2907 foreach_override (gpointer key, gpointer value, gpointer user_data) {
2908 MonoMethod *method = key;
2909 MonoMethod *override = value;
2910 MonoClass *method_class = mono_method_get_class (method);
2911 MonoClass *override_class = mono_method_get_class (override);
2913 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
2914 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
2915 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
2918 print_overrides (GHashTable *override_map, const char *message) {
2920 printf ("Override map \"%s\" START:\n", message);
2921 g_hash_table_foreach (override_map, foreach_override, NULL);
2922 printf ("Override map \"%s\" END.\n", message);
2924 printf ("Override map \"%s\" EMPTY.\n", message);
2928 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
2929 char *full_name = mono_type_full_name (&class->byval_arg);
2933 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
2935 if (print_interfaces) {
2936 print_implemented_interfaces (class);
2937 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
2940 if (class->parent) {
2941 parent_size = class->parent->vtable_size;
2945 for (i = 0; i < size; ++i) {
2946 MonoMethod *cm = vtable [i];
2948 char *cm_name = mono_method_full_name (cm, TRUE);
2949 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
2950 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
2959 #if VERIFY_INTERFACE_VTABLE_CODE
2961 mono_method_try_get_vtable_index (MonoMethod *method)
2963 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
2964 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
2965 if (imethod->declaring->is_generic)
2966 return imethod->declaring->slot;
2968 return method->slot;
2972 mono_class_verify_vtable (MonoClass *class)
2975 char *full_name = mono_type_full_name (&class->byval_arg);
2977 printf ("*** Verifying VTable of class '%s' \n", full_name);
2981 if (!class->methods)
2984 for (i = 0; i < class->method.count; ++i) {
2985 MonoMethod *cm = class->methods [i];
2988 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
2992 full_name = mono_method_full_name (cm, TRUE);
2994 slot = mono_method_try_get_vtable_index (cm);
2996 if (slot >= class->vtable_size) {
2997 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name, slot, class->vtable_size);
3001 if (slot >= 0 && class->vtable [slot] != cm && (class->vtable [slot])) {
3002 char *other_name = class->vtable [slot] ? mono_method_full_name (class->vtable [slot], TRUE) : g_strdup ("[null value]");
3003 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name, slot, other_name);
3004 g_free (other_name);
3007 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name);
3014 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
3016 char *method_signature;
3018 for (index = 0; index < onum; ++index) {
3019 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
3020 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
3022 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
3023 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
3024 mono_type_get_name (&ic->byval_arg), im->name, method_signature, class->name_space, class->name);
3025 g_free (method_signature);
3026 mono_class_setup_methods (class);
3027 for (index = 0; index < class->method.count; ++index) {
3028 MonoMethod *cm = class->methods [index];
3029 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
3031 printf ("METHOD %s(%s)\n", cm->name, method_signature);
3032 g_free (method_signature);
3037 * LOCKING: this is supposed to be called with the loader lock held.
3040 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
3043 MonoMethod **vtable;
3044 int i, max_vtsize = 0, max_iid, cur_slot = 0;
3045 GPtrArray *ifaces = NULL;
3046 GHashTable *override_map = NULL;
3047 gboolean security_enabled = mono_is_security_manager_active ();
3049 gpointer class_iter;
3050 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3051 int first_non_interface_slot;
3057 ifaces = mono_class_get_implemented_interfaces (class);
3059 for (i = 0; i < ifaces->len; i++) {
3060 MonoClass *ic = g_ptr_array_index (ifaces, i);
3061 max_vtsize += ic->method.count;
3063 g_ptr_array_free (ifaces, TRUE);
3067 if (class->parent) {
3068 mono_class_init (class->parent);
3069 mono_class_setup_vtable (class->parent);
3070 max_vtsize += class->parent->vtable_size;
3071 cur_slot = class->parent->vtable_size;
3074 max_vtsize += class->method.count;
3076 vtable = alloca (sizeof (gpointer) * max_vtsize);
3077 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
3079 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3081 cur_slot = setup_interface_offsets (class, cur_slot);
3082 max_iid = class->max_interface_id;
3083 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
3085 /* Optimized version for generic instances */
3086 if (class->generic_class) {
3087 MonoClass *gklass = class->generic_class->container_class;
3090 mono_class_setup_vtable (gklass);
3092 tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * gklass->vtable_size);
3093 class->vtable_size = gklass->vtable_size;
3094 for (i = 0; i < gklass->vtable_size; ++i)
3095 if (gklass->vtable [i]) {
3096 tmp [i] = mono_class_inflate_generic_method_full (gklass->vtable [i], class, mono_class_get_context (class));
3097 tmp [i]->slot = gklass->vtable [i]->slot;
3099 mono_memory_barrier ();
3100 class->vtable = tmp;
3102 /* Have to set method->slot for abstract virtual methods */
3103 if (class->methods && gklass->methods) {
3104 for (i = 0; i < class->method.count; ++i)
3105 if (class->methods [i]->slot == -1)
3106 class->methods [i]->slot = gklass->methods [i]->slot;
3112 if (class->parent && class->parent->vtable_size) {
3113 MonoClass *parent = class->parent;
3116 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
3118 // Also inherit parent interface vtables, just as a starting point.
3119 // This is needed otherwise bug-77127.exe fails when the property methods
3120 // have different names in the iterface and the class, because for child
3121 // classes the ".override" information is not used anymore.
3122 for (i = 0; i < parent->interface_offsets_count; i++) {
3123 MonoClass *parent_interface = parent->interfaces_packed [i];
3124 int interface_offset = mono_class_interface_offset (class, parent_interface);
3126 if (interface_offset >= parent->vtable_size) {
3127 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
3130 mono_class_setup_methods (parent_interface);
3131 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
3132 for (j = 0; j < parent_interface->method.count; j++) {
3133 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
3134 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
3135 parent_interface_offset + j, parent_interface_offset, j,
3136 interface_offset + j, interface_offset, j));
3143 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
3144 /* override interface methods */
3145 for (i = 0; i < onum; i++) {
3146 MonoMethod *decl = overrides [i*2];
3147 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
3149 dslot = mono_method_get_vtable_slot (decl) + mono_class_interface_offset (class, decl->klass);
3150 vtable [dslot] = overrides [i*2 + 1];
3151 vtable [dslot]->slot = dslot;
3153 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3155 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
3157 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3158 mono_security_core_clr_check_override (class, vtable [dslot], decl);
3161 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
3162 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
3164 // Loop on all implemented interfaces...
3165 for (i = 0; i < class->interface_offsets_count; i++) {
3166 MonoClass *parent = class->parent;
3168 gboolean interface_is_explicitly_implemented_by_class;
3171 ic = class->interfaces_packed [i];
3172 ic_offset = mono_class_interface_offset (class, ic);
3174 mono_class_setup_methods (ic);
3176 // Check if this interface is explicitly implemented (instead of just inherited)
3177 if (parent != NULL) {
3178 int implemented_interfaces_index;
3179 interface_is_explicitly_implemented_by_class = FALSE;
3180 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
3181 if (ic == class->interfaces [implemented_interfaces_index]) {
3182 interface_is_explicitly_implemented_by_class = TRUE;
3187 interface_is_explicitly_implemented_by_class = TRUE;
3190 // Loop on all interface methods...
3191 for (im_index = 0; im_index < ic->method.count; im_index++) {
3192 MonoMethod *im = ic->methods [im_index];
3193 int im_slot = ic_offset + im->slot;
3194 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
3196 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3199 // If there is an explicit implementation, just use it right away,
3200 // otherwise look for a matching method
3201 if (override_im == NULL) {
3206 // First look for a suitable method among the class methods
3208 while ((cm = mono_class_get_virtual_methods (class, &iter))) {
3209 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)));
3210 if (check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
3211 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
3212 vtable [im_slot] = cm;
3213 /* Why do we need this? */
3218 TRACE_INTERFACE_VTABLE (printf ("\n"));
3221 // If the slot is still empty, look in all the inherited virtual methods...
3222 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
3223 MonoClass *parent = class->parent;
3224 // Reverse order, so that last added methods are preferred
3225 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
3226 MonoMethod *cm = parent->vtable [cm_index];
3228 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));
3229 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
3230 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
3231 vtable [im_slot] = cm;
3232 /* Why do we need this? */
3238 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
3242 g_assert (vtable [im_slot] == override_im);
3247 // If the class is not abstract, check that all its interface slots are full.
3248 // The check is done here and not directly at the end of the loop above because
3249 // it can happen (for injected generic array interfaces) that the same slot is
3250 // processed multiple times (those interfaces have overlapping slots), and it
3251 // will not always be the first pass the one that fills the slot.
3252 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
3253 for (i = 0; i < class->interface_offsets_count; i++) {
3257 ic = class->interfaces_packed [i];
3258 ic_offset = mono_class_interface_offset (class, ic);
3260 for (im_index = 0; im_index < ic->method.count; im_index++) {
3261 MonoMethod *im = ic->methods [im_index];
3262 int im_slot = ic_offset + im->slot;
3264 if (im->flags & METHOD_ATTRIBUTE_STATIC)
3267 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
3268 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
3269 if (vtable [im_slot] == NULL) {
3270 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
3271 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3273 g_hash_table_destroy (override_map);
3280 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
3282 while ((cm = mono_class_get_virtual_methods (class, &class_iter))) {
3284 * If the method is REUSE_SLOT, we must check in the
3285 * base class for a method to override.
3287 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3289 for (k = class->parent; k ; k = k->parent) {
3294 while ((m1 = mono_class_get_virtual_methods (k, &k_iter))) {
3295 MonoMethodSignature *cmsig, *m1sig;
3297 cmsig = mono_method_signature (cm);
3298 m1sig = mono_method_signature (m1);
3300 if (!cmsig || !m1sig) {
3301 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3305 if (!strcmp(cm->name, m1->name) &&
3306 mono_metadata_signature_equal (cmsig, m1sig)) {
3308 /* CAS - SecurityAction.InheritanceDemand */
3309 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3310 mono_secman_inheritancedemand_method (cm, m1);
3313 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3314 mono_security_core_clr_check_override (class, cm, m1);
3316 slot = mono_method_get_vtable_slot (m1);
3317 g_assert (cm->slot < max_vtsize);
3319 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3320 g_hash_table_insert (override_map, m1, cm);
3332 cm->slot = cur_slot++;
3334 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
3335 vtable [cm->slot] = cm;
3338 /* override non interface methods */
3339 for (i = 0; i < onum; i++) {
3340 MonoMethod *decl = overrides [i*2];
3341 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
3342 g_assert (decl->slot != -1);
3343 vtable [decl->slot] = overrides [i*2 + 1];
3344 overrides [i * 2 + 1]->slot = decl->slot;
3346 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3347 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
3349 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3350 mono_security_core_clr_check_override (class, vtable [decl->slot], decl);
3355 * If a method occupies more than one place in the vtable, and it is
3356 * overriden, then change the other occurances too.
3359 for (i = 0; i < max_vtsize; ++i)
3361 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
3366 g_hash_table_destroy (override_map);
3369 if (class->generic_class) {
3370 MonoClass *gklass = class->generic_class->container_class;
3372 mono_class_init (gklass);
3374 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
3376 /* Check that the vtable_size value computed in mono_class_init () is correct */
3377 if (class->vtable_size)
3378 g_assert (cur_slot == class->vtable_size);
3379 class->vtable_size = cur_slot;
3382 /* Try to share the vtable with our parent. */
3383 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
3384 mono_memory_barrier ();
3385 class->vtable = class->parent->vtable;
3387 MonoMethod **tmp = mono_image_alloc0 (class->image, sizeof (gpointer) * class->vtable_size);
3388 memcpy (tmp, vtable, sizeof (gpointer) * class->vtable_size);
3389 mono_memory_barrier ();
3390 class->vtable = tmp;
3393 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
3394 if (mono_print_vtable) {
3397 print_implemented_interfaces (class);
3399 for (i = 0; i <= max_iid; i++)
3400 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
3403 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
3404 class->vtable_size, icount);
3406 for (i = 0; i < class->vtable_size; ++i) {
3411 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
3412 mono_method_full_name (cm, TRUE));
3418 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
3419 class->name, max_iid);
3421 for (i = 0; i < class->interface_count; i++) {
3422 ic = class->interfaces [i];
3423 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3424 mono_class_interface_offset (class, ic),
3425 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3428 for (k = class->parent; k ; k = k->parent) {
3429 for (i = 0; i < k->interface_count; i++) {
3430 ic = k->interfaces [i];
3431 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3432 mono_class_interface_offset (class, ic),
3433 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3439 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
3443 * mono_method_get_vtable_slot:
3445 * Returns method->slot, computing it if neccesary.
3446 * LOCKING: Acquires the loader lock.
3449 mono_method_get_vtable_slot (MonoMethod *method)
3451 if (method->slot == -1) {
3452 mono_class_setup_vtable (method->klass);
3453 g_assert (method->slot != -1);
3455 return method->slot;
3459 * mono_method_get_vtable_index:
3462 * Returns the index into the runtime vtable to access the method or,
3463 * in the case of a virtual generic method, the virtual generic method
3467 mono_method_get_vtable_index (MonoMethod *method)
3469 if (method->is_inflated && (method->flags & METHOD_ATTRIBUTE_VIRTUAL)) {
3470 MonoMethodInflated *imethod = (MonoMethodInflated*)method;
3471 if (imethod->declaring->is_generic)
3472 return mono_method_get_vtable_slot (imethod->declaring);
3474 return mono_method_get_vtable_slot (method);
3477 static MonoMethod *default_ghc = NULL;
3478 static MonoMethod *default_finalize = NULL;
3479 static int finalize_slot = -1;
3480 static int ghc_slot = -1;
3483 initialize_object_slots (MonoClass *class)
3488 if (class == mono_defaults.object_class) {
3489 mono_class_setup_vtable (class);
3490 for (i = 0; i < class->vtable_size; ++i) {
3491 MonoMethod *cm = class->vtable [i];
3493 if (!strcmp (cm->name, "GetHashCode"))
3495 else if (!strcmp (cm->name, "Finalize"))
3499 g_assert (ghc_slot > 0);
3500 default_ghc = class->vtable [ghc_slot];
3502 g_assert (finalize_slot > 0);
3503 default_finalize = class->vtable [finalize_slot];
3508 MonoMethod *array_method;
3510 } GenericArrayMethodInfo;
3512 static int generic_array_method_num = 0;
3513 static GenericArrayMethodInfo *generic_array_method_info = NULL;
3516 generic_array_methods (MonoClass *class)
3518 int i, count_generic = 0;
3519 GList *list = NULL, *tmp;
3520 if (generic_array_method_num)
3521 return generic_array_method_num;
3522 mono_class_setup_methods (class->parent);
3523 for (i = 0; i < class->parent->method.count; i++) {
3524 MonoMethod *m = class->parent->methods [i];
3525 if (!strncmp (m->name, "InternalArray__", 15)) {
3527 list = g_list_prepend (list, m);
3530 list = g_list_reverse (list);
3531 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
3533 for (tmp = list; tmp; tmp = tmp->next) {
3534 const char *mname, *iname;
3536 MonoMethod *m = tmp->data;
3537 generic_array_method_info [i].array_method = m;
3538 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
3539 iname = "System.Collections.Generic.ICollection`1.";
3540 mname = m->name + 27;
3541 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
3542 iname = "System.Collections.Generic.IEnumerable`1.";
3543 mname = m->name + 27;
3544 } else if (!strncmp (m->name, "InternalArray__", 15)) {
3545 iname = "System.Collections.Generic.IList`1.";
3546 mname = m->name + 15;
3548 g_assert_not_reached ();
3551 name = mono_image_alloc (mono_defaults.corlib, strlen (iname) + strlen (mname) + 1);
3552 strcpy (name, iname);
3553 strcpy (name + strlen (iname), mname);
3554 generic_array_method_info [i].name = name;
3557 /*g_print ("array generic methods: %d\n", count_generic);*/
3559 generic_array_method_num = count_generic;
3561 return generic_array_method_num;
3565 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, MonoMethod **methods, int pos)
3567 MonoGenericContext tmp_context;
3570 tmp_context.class_inst = NULL;
3571 tmp_context.method_inst = iface->generic_class->context.class_inst;
3572 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
3574 for (i = 0; i < generic_array_method_num; i++) {
3575 MonoMethod *m = generic_array_method_info [i].array_method;
3576 MonoMethod *inflated;
3578 inflated = mono_class_inflate_generic_method (m, &tmp_context);
3579 methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
3584 concat_two_strings_with_zero (MonoImage *image, const char *s1, const char *s2)
3586 int len = strlen (s1) + strlen (s2) + 2;
3587 char *s = mono_image_alloc (image, len);
3590 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
3591 g_assert (result == len - 1);
3597 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
3599 gpointer exception_data = NULL;
3601 switch (error->exception_type) {
3602 case MONO_EXCEPTION_TYPE_LOAD:
3603 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->assembly_name);
3606 case MONO_EXCEPTION_MISSING_METHOD:
3607 exception_data = concat_two_strings_with_zero (class->image, error->class_name, error->member_name);
3610 case MONO_EXCEPTION_MISSING_FIELD: {
3611 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
3612 const char *class_name;
3615 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
3617 class_name = error->klass->name;
3619 exception_data = concat_two_strings_with_zero (class->image, class_name, error->member_name);
3622 g_free ((void*)class_name);
3626 case MONO_EXCEPTION_FILE_NOT_FOUND: {
3629 if (error->ref_only)
3630 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.";
3632 msg = "Could not load file or assembly '%s' or one of its dependencies.";
3634 exception_data = concat_two_strings_with_zero (class->image, msg, error->assembly_name);
3638 case MONO_EXCEPTION_BAD_IMAGE:
3639 exception_data = error->msg;
3643 g_assert_not_reached ();
3646 mono_class_set_failure (class, error->exception_type, exception_data);
3651 * @class: the class to initialize
3653 * Compute the instance_size, class_size and other infos that cannot be
3654 * computed at mono_class_get() time. Also compute vtable_size if possible.
3655 * Returns TRUE on success or FALSE if there was a problem in loading
3656 * the type (incorrect assemblies, missing assemblies, methods, etc).
3658 * LOCKING: Acquires the loader lock.
3661 mono_class_init (MonoClass *class)
3664 MonoCachedClassInfo cached_info;
3665 gboolean has_cached_info;
3666 int class_init_ok = TRUE;
3670 /* Double-checking locking pattern */
3672 return class->exception_type == MONO_EXCEPTION_NONE;
3674 /*g_print ("Init class %s\n", class->name);*/
3676 /* We do everything inside the lock to prevent races */
3677 mono_loader_lock ();
3679 if (class->inited) {
3680 mono_loader_unlock ();
3681 /* Somebody might have gotten in before us */
3682 return class->exception_type == MONO_EXCEPTION_NONE;
3685 if (class->init_pending) {
3686 mono_loader_unlock ();
3687 /* this indicates a cyclic dependency */
3688 g_error ("pending init %s.%s\n", class->name_space, class->name);
3691 class->init_pending = 1;
3693 /* CAS - SecurityAction.InheritanceDemand */
3694 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
3695 mono_secman_inheritancedemand_class (class, class->parent);
3698 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3699 mono_security_core_clr_check_inheritance (class);
3701 mono_stats.initialized_class_count++;
3703 if (class->generic_class && !class->generic_class->is_dynamic) {
3704 MonoClass *gklass = class->generic_class->container_class;
3706 mono_stats.generic_class_count++;
3708 class->method = gklass->method;
3709 class->field = gklass->field;
3711 mono_class_init (gklass);
3712 // FIXME: Why is this needed ?
3713 mono_class_setup_methods (gklass);
3715 if (MONO_CLASS_IS_INTERFACE (class))
3716 class->interface_id = mono_get_unique_iid (class);
3719 if (class->parent && !class->parent->inited)
3720 mono_class_init (class->parent);
3722 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
3724 if (class->generic_class || class->image->dynamic || !class->type_token || (has_cached_info && !cached_info.has_nested_classes))
3725 class->nested_classes_inited = TRUE;
3728 * Computes the size used by the fields, and their locations
3730 if (has_cached_info) {
3731 class->instance_size = cached_info.instance_size;
3732 class->sizes.class_size = cached_info.class_size;
3733 class->packing_size = cached_info.packing_size;
3734 class->min_align = cached_info.min_align;
3735 class->blittable = cached_info.blittable;
3736 class->has_references = cached_info.has_references;
3737 class->has_static_refs = cached_info.has_static_refs;
3738 class->no_special_static_fields = cached_info.no_special_static_fields;
3741 if (!class->size_inited){
3742 mono_class_setup_fields (class);
3743 if (class->exception_type || mono_loader_get_last_error ()){
3744 class_init_ok = FALSE;
3749 /* Initialize arrays */
3751 class->method.count = 3 + (class->rank > 1? 2: 1);
3753 if (class->interface_count) {
3754 int count_generic = generic_array_methods (class);
3755 class->method.count += class->interface_count * count_generic;
3759 mono_class_setup_supertypes (class);
3762 initialize_object_slots (class);
3765 * Initialize the rest of the data without creating a generic vtable if possible.
3766 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
3767 * also avoid computing a generic vtable.
3769 if (has_cached_info) {
3771 class->vtable_size = cached_info.vtable_size;
3772 class->has_finalize = cached_info.has_finalize;
3773 class->ghcimpl = cached_info.ghcimpl;
3774 class->has_cctor = cached_info.has_cctor;
3775 } else if (class->rank == 1 && class->byval_arg.type == MONO_TYPE_SZARRAY) {
3776 static int szarray_vtable_size = 0;
3779 if (!szarray_vtable_size) {
3780 mono_class_setup_vtable (class);
3781 szarray_vtable_size = class->vtable_size;
3783 class->vtable_size = szarray_vtable_size;
3785 } else if (class->generic_class && !MONO_CLASS_IS_INTERFACE (class)) {
3786 MonoClass *gklass = class->generic_class->container_class;
3788 /* Generic instance case */
3789 class->ghcimpl = gklass->ghcimpl;
3790 class->has_finalize = gklass->has_finalize;
3791 class->has_cctor = gklass->has_cctor;
3793 mono_class_setup_vtable (gklass);
3794 if (gklass->exception_type)
3797 class->vtable_size = gklass->vtable_size;
3801 /* ghcimpl is not currently used
3803 if (class->parent) {
3804 MonoMethod *cmethod = class->vtable [ghc_slot];
3805 if (cmethod->is_inflated)
3806 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3807 if (cmethod == default_ghc) {
3813 /* Interfaces and valuetypes are not supposed to have finalizers */
3814 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype)) {
3815 MonoMethod *cmethod = NULL;
3817 if (class->parent && class->parent->has_finalize) {
3818 class->has_finalize = 1;
3820 if (class->type_token) {
3821 cmethod = find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL);
3822 } else if (class->parent) {
3823 /* FIXME: Optimize this */
3824 mono_class_setup_vtable (class);
3825 if (class->exception_type || mono_loader_get_last_error ())
3827 cmethod = class->vtable [finalize_slot];
3831 /* Check that this is really the finalizer method */
3832 mono_class_setup_vtable (class);
3833 if (class->exception_type || mono_loader_get_last_error ())
3836 class->has_finalize = 0;
3837 if (class->parent) {
3838 cmethod = class->vtable [finalize_slot];
3839 if (cmethod->is_inflated)
3840 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3841 if (cmethod != default_finalize) {
3842 class->has_finalize = 1;
3849 /* C# doesn't allow interfaces to have cctors */
3850 if (!MONO_CLASS_IS_INTERFACE (class) || class->image != mono_defaults.corlib) {
3851 MonoMethod *cmethod = NULL;
3853 if (class->type_token) {
3854 cmethod = find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME);
3855 /* The find_method function ignores the 'flags' argument */
3856 if (cmethod && (cmethod->flags & METHOD_ATTRIBUTE_SPECIAL_NAME))
3857 class->has_cctor = 1;
3859 mono_class_setup_methods (class);
3861 for (i = 0; i < class->method.count; ++i) {
3862 MonoMethod *method = class->methods [i];
3863 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3864 (strcmp (".cctor", method->name) == 0)) {
3865 class->has_cctor = 1;
3873 if (!mono_setup_vtable_in_class_init) {
3875 * This is an embedding API break, since the caller might assume that
3876 * mono_class_init () constructs a generic vtable, so vtable construction errors
3877 * are visible right after the mono_class_init (), and not after
3878 * mono_class_vtable ().
3880 if (class->parent) {
3881 /* This will compute class->parent->vtable_size for some classes */
3882 mono_class_init (class->parent);
3883 if (class->parent->exception_type || mono_loader_get_last_error ())
3885 if (!class->parent->vtable_size) {
3886 /* FIXME: Get rid of this somehow */
3887 mono_class_setup_vtable (class->parent);
3888 if (class->parent->exception_type || mono_loader_get_last_error ())
3891 setup_interface_offsets (class, class->parent->vtable_size);
3893 setup_interface_offsets (class, 0);
3896 mono_class_setup_vtable (class);
3898 if (MONO_CLASS_IS_INTERFACE (class))
3899 setup_interface_offsets (class, 0);
3902 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
3903 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, concat_two_strings_with_zero (class->image, class->name, class->image->assembly_name));
3904 class_init_ok = FALSE;
3910 class_init_ok = FALSE;
3913 /* Because of the double-checking locking pattern */
3914 mono_memory_barrier ();
3916 class->init_pending = 0;
3918 if (mono_loader_get_last_error ()) {
3919 if (class->exception_type == MONO_EXCEPTION_NONE)
3920 set_failure_from_loader_error (class, mono_loader_get_last_error ());
3922 mono_loader_clear_error ();
3925 mono_loader_unlock ();
3927 if (mono_debugger_class_init_func)
3928 mono_debugger_class_init_func (class);
3930 return class_init_ok;
3934 is_corlib_image (MonoImage *image)
3936 /* FIXME: allow the dynamic case for our compilers and with full trust */
3938 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
3940 return image == mono_defaults.corlib;
3944 * LOCKING: this assumes the loader lock is held
3947 mono_class_setup_mono_type (MonoClass *class)
3949 const char *name = class->name;
3950 const char *nspace = class->name_space;
3951 gboolean is_corlib = is_corlib_image (class->image);
3953 class->this_arg.byref = 1;
3954 class->this_arg.data.klass = class;
3955 class->this_arg.type = MONO_TYPE_CLASS;
3956 class->byval_arg.data.klass = class;
3957 class->byval_arg.type = MONO_TYPE_CLASS;
3959 if (is_corlib && !strcmp (nspace, "System")) {
3960 if (!strcmp (name, "ValueType")) {
3962 * do not set the valuetype bit for System.ValueType.
3963 * class->valuetype = 1;
3965 class->blittable = TRUE;
3966 } else if (!strcmp (name, "Enum")) {
3968 * do not set the valuetype bit for System.Enum.
3969 * class->valuetype = 1;
3971 class->valuetype = 0;
3972 class->enumtype = 0;
3973 } else if (!strcmp (name, "Object")) {
3974 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
3975 } else if (!strcmp (name, "String")) {
3976 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
3977 } else if (!strcmp (name, "TypedReference")) {
3978 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
3982 if (class->valuetype) {
3983 int t = MONO_TYPE_VALUETYPE;
3985 if (is_corlib && !strcmp (nspace, "System")) {
3988 if (!strcmp (name, "Boolean")) {
3989 t = MONO_TYPE_BOOLEAN;
3990 } else if (!strcmp(name, "Byte")) {
3992 class->blittable = TRUE;
3996 if (!strcmp (name, "Char")) {
4001 if (!strcmp (name, "Double")) {
4003 class->blittable = TRUE;
4007 if (!strcmp (name, "Int32")) {
4009 class->blittable = TRUE;
4010 } else if (!strcmp(name, "Int16")) {
4012 class->blittable = TRUE;
4013 } else if (!strcmp(name, "Int64")) {
4015 class->blittable = TRUE;
4016 } else if (!strcmp(name, "IntPtr")) {
4018 class->blittable = TRUE;
4022 if (!strcmp (name, "Single")) {
4024 class->blittable = TRUE;
4025 } else if (!strcmp(name, "SByte")) {
4027 class->blittable = TRUE;
4031 if (!strcmp (name, "UInt32")) {
4033 class->blittable = TRUE;
4034 } else if (!strcmp(name, "UInt16")) {
4036 class->blittable = TRUE;
4037 } else if (!strcmp(name, "UInt64")) {
4039 class->blittable = TRUE;
4040 } else if (!strcmp(name, "UIntPtr")) {
4042 class->blittable = TRUE;
4046 if (!strcmp (name, "TypedReference")) {
4047 t = MONO_TYPE_TYPEDBYREF;
4048 class->blittable = TRUE;
4052 if (!strcmp (name, "Void")) {
4060 class->this_arg.type = class->byval_arg.type = t;
4063 if (MONO_CLASS_IS_INTERFACE (class))
4064 class->interface_id = mono_get_unique_iid (class);
4069 * LOCKING: this assumes the loader lock is held
4072 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
4074 gboolean system_namespace;
4075 gboolean is_corlib = is_corlib_image (class->image);
4077 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
4079 /* if root of the hierarchy */
4080 if (system_namespace && !strcmp (class->name, "Object")) {
4081 class->parent = NULL;
4082 class->instance_size = sizeof (MonoObject);
4085 if (!strcmp (class->name, "<Module>")) {
4086 class->parent = NULL;
4087 class->instance_size = 0;
4091 if (!MONO_CLASS_IS_INTERFACE (class)) {
4092 /* Imported COM Objects always derive from __ComObject. */
4093 if (MONO_CLASS_IS_IMPORT (class)) {
4094 mono_init_com_types ();
4095 if (parent == mono_defaults.object_class)
4096 parent = mono_defaults.com_object_class;
4099 /* set the parent to something useful and safe, but mark the type as broken */
4100 parent = mono_defaults.object_class;
4101 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4104 class->parent = parent;
4106 if (parent->generic_class && !parent->name) {
4108 * If the parent is a generic instance, we may get
4109 * called before it is fully initialized, especially
4110 * before it has its name.
4115 class->marshalbyref = parent->marshalbyref;
4116 class->contextbound = parent->contextbound;
4117 class->delegate = parent->delegate;
4118 if (MONO_CLASS_IS_IMPORT (class))
4119 class->is_com_object = 1;
4121 class->is_com_object = parent->is_com_object;
4123 if (system_namespace) {
4124 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
4125 class->marshalbyref = 1;
4127 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
4128 class->contextbound = 1;
4130 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
4131 class->delegate = 1;
4134 if (class->parent->enumtype || (is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
4135 (strcmp (class->parent->name_space, "System") == 0)))
4136 class->valuetype = 1;
4137 if (is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
4138 class->valuetype = class->enumtype = 1;
4140 /*class->enumtype = class->parent->enumtype; */
4141 mono_class_setup_supertypes (class);
4143 /* initialize com types if COM interfaces are present */
4144 if (MONO_CLASS_IS_IMPORT (class))
4145 mono_init_com_types ();
4146 class->parent = NULL;
4152 * mono_class_setup_supertypes:
4155 * Build the data structure needed to make fast type checks work.
4156 * This currently sets two fields in @class:
4157 * - idepth: distance between @class and System.Object in the type
4159 * - supertypes: array of classes: each element has a class in the hierarchy
4160 * starting from @class up to System.Object
4162 * LOCKING: this assumes the loader lock is held
4165 mono_class_setup_supertypes (MonoClass *class)
4169 if (class->supertypes)
4172 if (class->parent && !class->parent->supertypes)
4173 mono_class_setup_supertypes (class->parent);
4175 class->idepth = class->parent->idepth + 1;
4179 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
4180 class->supertypes = mono_image_alloc0 (class->image, sizeof (MonoClass *) * ms);
4182 if (class->parent) {
4183 class->supertypes [class->idepth - 1] = class;
4184 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
4186 class->supertypes [0] = class;
4191 * mono_class_create_from_typedef:
4192 * @image: image where the token is valid
4193 * @type_token: typedef token
4195 * Create the MonoClass* representing the specified type token.
4196 * @type_token must be a TypeDef token.
4199 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
4201 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
4202 MonoClass *class, *parent = NULL;
4203 guint32 cols [MONO_TYPEDEF_SIZE];
4204 guint32 cols_next [MONO_TYPEDEF_SIZE];
4205 guint tidx = mono_metadata_token_index (type_token);
4206 MonoGenericContext *context = NULL;
4207 const char *name, *nspace;
4209 MonoClass **interfaces;
4210 guint32 field_last, method_last;
4211 guint32 nesting_tokeen;
4213 mono_loader_lock ();
4215 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
4216 mono_loader_unlock ();
4220 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
4222 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
4224 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4225 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4227 class = mono_image_alloc0 (image, sizeof (MonoClass));
4230 class->name_space = nspace;
4232 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4234 class->image = image;
4235 class->type_token = type_token;
4236 class->flags = cols [MONO_TYPEDEF_FLAGS];
4238 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
4240 classes_size += sizeof (MonoClass);
4243 * Check whether we're a generic type definition.
4245 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
4246 if (class->generic_container) {
4247 class->is_generic = 1;
4248 class->generic_container->owner.klass = class;
4249 context = &class->generic_container->context;
4252 if (cols [MONO_TYPEDEF_EXTENDS]) {
4253 guint32 parent_token = mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]);
4255 if (mono_metadata_token_table (parent_token) == MONO_TABLE_TYPESPEC) {
4256 /*WARNING: this must satisfy mono_metadata_type_hash*/
4257 class->this_arg.byref = 1;
4258 class->this_arg.data.klass = class;
4259 class->this_arg.type = MONO_TYPE_CLASS;
4260 class->byval_arg.data.klass = class;
4261 class->byval_arg.type = MONO_TYPE_CLASS;
4263 parent = mono_class_get_full (image, parent_token, context);
4265 if (parent == NULL){
4266 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
4267 mono_loader_unlock ();
4268 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4273 /* do this early so it's available for interfaces in setup_mono_type () */
4274 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
4275 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
4277 mono_class_setup_parent (class, parent);
4279 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
4280 mono_class_setup_mono_type (class);
4282 if (!class->enumtype) {
4283 if (!mono_metadata_interfaces_from_typedef_full (
4284 image, type_token, &interfaces, &icount, context)){
4285 mono_loader_unlock ();
4286 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
4290 class->interfaces = interfaces;
4291 class->interface_count = icount;
4292 class->interfaces_inited = 1;
4295 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
4299 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
4303 class->cast_class = class->element_class = class;
4305 /*g_print ("Load class %s\n", name);*/
4308 * Compute the field and method lists
4310 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
4311 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
4313 if (tt->rows > tidx){
4314 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
4315 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
4316 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
4318 field_last = image->tables [MONO_TABLE_FIELD].rows;
4319 method_last = image->tables [MONO_TABLE_METHOD].rows;
4322 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
4323 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
4324 class->field.count = field_last - class->field.first;
4326 class->field.count = 0;
4328 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
4329 class->method.count = method_last - class->method.first;
4331 class->method.count = 0;
4333 /* reserve space to store vector pointer in arrays */
4334 if (!strcmp (nspace, "System") && !strcmp (name, "Array")) {
4335 class->instance_size += 2 * sizeof (gpointer);
4336 g_assert (class->field.count == 0);
4339 if (class->enumtype) {
4340 MonoType *enum_basetype = mono_class_find_enum_basetype (class);
4341 if (!enum_basetype) {
4342 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4343 mono_loader_unlock ();
4346 class->cast_class = class->element_class = mono_class_from_mono_type (enum_basetype);
4350 * If we're a generic type definition, load the constraints.
4351 * We must do this after the class has been constructed to make certain recursive scenarios
4354 if (class->generic_container)
4355 mono_metadata_load_generic_param_constraints (
4356 image, type_token, class->generic_container);
4358 if (class->image->assembly_name && !strcmp (class->image->assembly_name, "Mono.Simd") && !strcmp (nspace, "Mono.Simd")) {
4359 if (!strncmp (name, "Vector", 6))
4360 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");
4363 mono_loader_unlock ();
4365 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4370 /** is klass Nullable<T>? */
4372 mono_class_is_nullable (MonoClass *klass)
4374 return klass->generic_class != NULL &&
4375 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
4379 /** if klass is T? return T */
4381 mono_class_get_nullable_param (MonoClass *klass)
4383 g_assert (mono_class_is_nullable (klass));
4384 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4388 * Create the `MonoClass' for an instantiation of a generic type.
4389 * We only do this if we actually need it.
4392 mono_generic_class_get_class (MonoGenericClass *gclass)
4394 MonoClass *klass, *gklass;
4396 mono_loader_lock ();
4397 if (gclass->cached_class) {
4398 mono_loader_unlock ();
4399 return gclass->cached_class;
4402 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
4403 klass = gclass->cached_class;
4405 gklass = gclass->container_class;
4407 if (gklass->nested_in) {
4409 * FIXME: the nested type context should include everything the
4410 * nesting context should have, but it may also have additional
4411 * generic parameters...
4413 klass->nested_in = mono_class_inflate_generic_class (gklass->nested_in,
4414 mono_generic_class_get_context (gclass));
4417 klass->name = gklass->name;
4418 klass->name_space = gklass->name_space;
4420 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4422 klass->image = gklass->image;
4423 klass->flags = gklass->flags;
4424 klass->type_token = gklass->type_token;
4425 klass->field.count = gklass->field.count;
4427 klass->is_inflated = 1;
4428 klass->generic_class = gclass;
4430 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
4431 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
4432 klass->this_arg.byref = TRUE;
4433 klass->enumtype = gklass->enumtype;
4434 klass->valuetype = gklass->valuetype;
4436 klass->cast_class = klass->element_class = klass;
4438 if (mono_class_is_nullable (klass))
4439 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
4442 * We're not interested in the nested classes of a generic instance.
4443 * We use the generic type definition to look for nested classes.
4446 if (gklass->parent) {
4447 klass->parent = mono_class_inflate_generic_class (gklass->parent, mono_generic_class_get_context (gclass));
4451 mono_class_setup_parent (klass, klass->parent);
4453 if (klass->enumtype) {
4454 klass->cast_class = gklass->cast_class;
4455 klass->element_class = gklass->element_class;
4458 if (gclass->is_dynamic) {
4461 mono_class_setup_supertypes (klass);
4463 if (klass->enumtype) {
4465 * For enums, gklass->fields might not been set, but instance_size etc. is
4466 * already set in mono_reflection_create_internal_class (). For non-enums,
4467 * these will be computed normally in mono_class_layout_fields ().
4469 klass->instance_size = gklass->instance_size;
4470 klass->sizes.class_size = gklass->sizes.class_size;
4471 klass->size_inited = 1;
4475 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4477 inflated_classes ++;
4478 inflated_classes_size += sizeof (MonoClass);
4480 mono_loader_unlock ();
4486 * LOCKING: Acquires the loader lock.
4489 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
4491 MonoGenericParamInfo *pinfo = mono_generic_param_info (param);
4492 MonoGenericContainer *container;
4493 MonoClass *klass, **ptr;
4496 mono_loader_lock ();
4498 if (pinfo->pklass) {
4499 mono_loader_unlock ();
4500 return pinfo->pklass;
4503 container = mono_generic_param_owner (param);
4504 if (!image && container) {
4506 MonoMethod *method = container->owner.method;
4507 image = (method && method->klass) ? method->klass->image : NULL;
4509 MonoClass *klass = container->owner.klass;
4510 // FIXME: 'klass' should not be null
4511 // But, monodis creates GenericContainers without associating a owner to it
4512 image = klass ? klass->image : NULL;
4517 image = mono_defaults.corlib;
4519 klass = mono_image_alloc0 (image, sizeof (MonoClass));
4521 classes_size += sizeof (MonoClass);
4524 klass->name = pinfo->name;
4526 int n = mono_generic_param_num (param);
4527 klass->name = mono_image_alloc0 (image, 16);
4528 sprintf ((char*)klass->name, is_mvar ? "!!%d" : "!%d", n);
4530 klass->name_space = "";
4531 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4533 for (count = 0, ptr = pinfo->constraints; ptr && *ptr; ptr++, count++)
4537 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (pinfo->constraints [0])) {
4538 klass->parent = pinfo->constraints [0];
4540 } else if (pinfo->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
4541 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
4543 klass->parent = mono_defaults.object_class;
4545 if (count - pos > 0) {
4546 klass->interface_count = count - pos;
4547 klass->interfaces = mono_image_alloc0 (image, sizeof (MonoClass *) * (count - pos));
4548 for (i = pos; i < count; i++)
4549 klass->interfaces [i - pos] = pinfo->constraints [i];
4553 image = mono_defaults.corlib;
4555 klass->image = image;
4557 klass->inited = TRUE;
4558 klass->cast_class = klass->element_class = klass;
4559 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
4561 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4562 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
4563 klass->this_arg.byref = TRUE;
4565 /* FIXME: shouldn't this be ->type_token? */
4566 klass->sizes.generic_param_token = pinfo->token;
4568 mono_class_setup_supertypes (klass);
4570 mono_memory_barrier ();
4572 pinfo->pklass = klass;
4574 mono_loader_unlock ();
4576 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4582 mono_ptr_class_get (MonoType *type)
4585 MonoClass *el_class;
4589 el_class = mono_class_from_mono_type (type);
4590 image = el_class->image;
4592 mono_loader_lock ();
4594 if (!image->ptr_cache)
4595 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4597 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
4598 mono_loader_unlock ();
4601 result = mono_image_alloc0 (image, sizeof (MonoClass));
4603 classes_size += sizeof (MonoClass);
4605 result->parent = NULL; /* no parent for PTR types */
4606 result->name_space = el_class->name_space;
4607 name = g_strdup_printf ("%s*", el_class->name);
4608 result->name = mono_image_strdup (image, name);
4611 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4613 result->image = el_class->image;
4614 result->inited = TRUE;
4615 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4616 /* Can pointers get boxed? */
4617 result->instance_size = sizeof (gpointer);
4618 result->cast_class = result->element_class = el_class;
4619 result->blittable = TRUE;
4621 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
4622 result->this_arg.data.type = result->byval_arg.data.type = &result->element_class->byval_arg;
4623 result->this_arg.byref = TRUE;
4625 mono_class_setup_supertypes (result);
4627 g_hash_table_insert (image->ptr_cache, el_class, result);
4629 mono_loader_unlock ();
4631 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4637 mono_fnptr_class_get (MonoMethodSignature *sig)
4640 static GHashTable *ptr_hash = NULL;
4642 /* FIXME: These should be allocate from a mempool as well, but which one ? */
4644 mono_loader_lock ();
4647 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4649 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
4650 mono_loader_unlock ();
4653 result = g_new0 (MonoClass, 1);
4655 result->parent = NULL; /* no parent for PTR types */
4656 result->name_space = "System";
4657 result->name = "MonoFNPtrFakeClass";
4659 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4661 result->image = mono_defaults.corlib; /* need to fix... */
4662 result->inited = TRUE;
4663 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
4664 /* Can pointers get boxed? */
4665 result->instance_size = sizeof (gpointer);
4666 result->cast_class = result->element_class = result;
4667 result->blittable = TRUE;
4669 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
4670 result->this_arg.data.method = result->byval_arg.data.method = sig;
4671 result->this_arg.byref = TRUE;
4672 result->blittable = TRUE;
4674 mono_class_setup_supertypes (result);
4676 g_hash_table_insert (ptr_hash, sig, result);
4678 mono_loader_unlock ();
4680 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4686 mono_class_from_mono_type (MonoType *type)
4688 switch (type->type) {
4689 case MONO_TYPE_OBJECT:
4690 return type->data.klass? type->data.klass: mono_defaults.object_class;
4691 case MONO_TYPE_VOID:
4692 return type->data.klass? type->data.klass: mono_defaults.void_class;
4693 case MONO_TYPE_BOOLEAN:
4694 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
4695 case MONO_TYPE_CHAR:
4696 return type->data.klass? type->data.klass: mono_defaults.char_class;
4698 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
4700 return type->data.klass? type->data.klass: mono_defaults.byte_class;
4702 return type->data.klass? type->data.klass: mono_defaults.int16_class;
4704 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
4706 return type->data.klass? type->data.klass: mono_defaults.int32_class;
4708 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
4710 return type->data.klass? type->data.klass: mono_defaults.int_class;
4712 return type->data.klass? type->data.klass: mono_defaults.uint_class;
4714 return type->data.klass? type->data.klass: mono_defaults.int64_class;
4716 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
4718 return type->data.klass? type->data.klass: mono_defaults.single_class;
4720 return type->data.klass? type->data.klass: mono_defaults.double_class;
4721 case MONO_TYPE_STRING:
4722 return type->data.klass? type->data.klass: mono_defaults.string_class;
4723 case MONO_TYPE_TYPEDBYREF:
4724 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
4725 case MONO_TYPE_ARRAY:
4726 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
4728 return mono_ptr_class_get (type->data.type);
4729 case MONO_TYPE_FNPTR:
4730 return mono_fnptr_class_get (type->data.method);
4731 case MONO_TYPE_SZARRAY:
4732 return mono_array_class_get (type->data.klass, 1);
4733 case MONO_TYPE_CLASS:
4734 case MONO_TYPE_VALUETYPE:
4735 return type->data.klass;
4736 case MONO_TYPE_GENERICINST:
4737 return mono_generic_class_get_class (type->data.generic_class);
4739 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
4740 case MONO_TYPE_MVAR:
4741 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
4743 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
4744 g_assert_not_reached ();
4751 * mono_type_retrieve_from_typespec
4752 * @image: context where the image is created
4753 * @type_spec: typespec token
4754 * @context: the generic context used to evaluate generic instantiations in
4757 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context, gboolean *did_inflate)
4759 MonoType *t = mono_type_create_from_typespec (image, type_spec);
4762 if (context && (context->class_inst || context->method_inst)) {
4763 MonoType *inflated = inflate_generic_type (NULL, t, context);
4766 *did_inflate = TRUE;
4773 * mono_class_create_from_typespec
4774 * @image: context where the image is created
4775 * @type_spec: typespec token
4776 * @context: the generic context used to evaluate generic instantiations in
4779 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
4782 gboolean inflated = FALSE;
4783 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context, &inflated);
4786 ret = mono_class_from_mono_type (t);
4788 mono_metadata_free_type (t);
4793 * mono_bounded_array_class_get:
4794 * @element_class: element class
4795 * @rank: the dimension of the array class
4796 * @bounded: whenever the array has non-zero bounds
4798 * Returns: a class object describing the array with element type @element_type and
4802 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
4806 MonoClass *parent = NULL;
4807 GSList *list, *rootlist;
4810 gboolean corlib_type = FALSE;
4812 g_assert (rank <= 255);
4815 /* bounded only matters for one-dimensional arrays */
4818 image = eclass->image;
4820 if (rank == 1 && !bounded) {
4822 * This case is very frequent not just during compilation because of calls
4823 * from mono_class_from_mono_type (), mono_array_new (),
4824 * Array:CreateInstance (), etc, so use a separate cache + a separate lock.
4826 EnterCriticalSection (&image->szarray_cache_lock);
4827 if (!image->szarray_cache)
4828 image->szarray_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4829 class = g_hash_table_lookup (image->szarray_cache, eclass);
4830 LeaveCriticalSection (&image->szarray_cache_lock);
4834 mono_loader_lock ();
4836 mono_loader_lock ();
4838 if (!image->array_cache)
4839 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4841 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
4842 for (; list; list = list->next) {
4844 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
4845 mono_loader_unlock ();
4852 /* for the building corlib use System.Array from it */
4853 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
4854 parent = mono_class_from_name (image, "System", "Array");
4857 parent = mono_defaults.array_class;
4858 if (!parent->inited)
4859 mono_class_init (parent);
4862 class = mono_image_alloc0 (image, sizeof (MonoClass));
4864 class->image = image;
4865 class->name_space = eclass->name_space;
4866 nsize = strlen (eclass->name);
4867 name = g_malloc (nsize + 2 + rank + 1);
4868 memcpy (name, eclass->name, nsize);
4871 memset (name + nsize + 1, ',', rank - 1);
4873 name [nsize + rank] = '*';
4874 name [nsize + rank + bounded] = ']';
4875 name [nsize + rank + bounded + 1] = 0;
4876 class->name = mono_image_strdup (image, name);
4879 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4881 classes_size += sizeof (MonoClass);
4883 class->type_token = 0;
4884 /* all arrays are marked serializable and sealed, bug #42779 */
4885 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
4886 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4887 class->parent = parent;
4888 class->instance_size = mono_class_instance_size (class->parent);
4890 if (eclass->enumtype && !mono_class_enum_basetype (eclass)) {
4891 if (!eclass->reflection_info || eclass->wastypebuilder) {
4892 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
4893 g_assert (eclass->reflection_info && !eclass->wastypebuilder);
4895 /* element_size -1 is ok as this is not an instantitable type*/
4896 class->sizes.element_size = -1;
4898 class->sizes.element_size = mono_class_array_element_size (eclass);
4900 mono_class_setup_supertypes (class);
4902 if (eclass->generic_class)
4903 mono_class_init (eclass);
4904 if (!eclass->size_inited)
4905 mono_class_setup_fields (eclass);
4906 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
4910 if (eclass->enumtype)
4911 class->cast_class = eclass->element_class;
4913 class->cast_class = eclass;
4915 class->element_class = eclass;
4917 if ((rank > 1) || bounded) {
4918 MonoArrayType *at = mono_image_alloc0 (image, sizeof (MonoArrayType));
4919 class->byval_arg.type = MONO_TYPE_ARRAY;
4920 class->byval_arg.data.array = at;
4921 at->eklass = eclass;
4923 /* FIXME: complete.... */
4925 class->byval_arg.type = MONO_TYPE_SZARRAY;
4926 class->byval_arg.data.klass = eclass;
4928 class->this_arg = class->byval_arg;
4929 class->this_arg.byref = 1;
4934 class->generic_container = eclass->generic_container;
4936 if (rank == 1 && !bounded) {
4937 MonoClass *prev_class;
4939 EnterCriticalSection (&image->szarray_cache_lock);
4940 prev_class = g_hash_table_lookup (image->szarray_cache, eclass);
4942 /* Someone got in before us */
4945 g_hash_table_insert (image->szarray_cache, eclass, class);
4946 LeaveCriticalSection (&image->szarray_cache_lock);
4948 list = g_slist_append (rootlist, class);
4949 g_hash_table_insert (image->array_cache, eclass, list);
4952 mono_loader_unlock ();
4954 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4960 * mono_array_class_get:
4961 * @element_class: element class
4962 * @rank: the dimension of the array class
4964 * Returns: a class object describing the array with element type @element_type and
4968 mono_array_class_get (MonoClass *eclass, guint32 rank)
4970 return mono_bounded_array_class_get (eclass, rank, FALSE);
4974 * mono_class_instance_size:
4977 * Returns: the size of an object instance
4980 mono_class_instance_size (MonoClass *klass)
4982 if (!klass->size_inited)
4983 mono_class_init (klass);
4985 return klass->instance_size;
4989 * mono_class_min_align:
4992 * Returns: minimm alignment requirements
4995 mono_class_min_align (MonoClass *klass)
4997 if (!klass->size_inited)
4998 mono_class_init (klass);
5000 return klass->min_align;
5004 * mono_class_value_size:
5007 * This function is used for value types, and return the
5008 * space and the alignment to store that kind of value object.
5010 * Returns: the size of a value of kind @klass
5013 mono_class_value_size (MonoClass *klass, guint32 *align)
5017 /* fixme: check disable, because we still have external revereces to
5018 * mscorlib and Dummy Objects
5020 /*g_assert (klass->valuetype);*/
5022 size = mono_class_instance_size (klass) - sizeof (MonoObject);
5025 *align = klass->min_align;
5031 * mono_class_data_size:
5034 * Returns: the size of the static class data
5037 mono_class_data_size (MonoClass *klass)
5040 mono_class_init (klass);
5042 /* in arrays, sizes.class_size is unioned with element_size
5043 * and arrays have no static fields
5047 return klass->sizes.class_size;
5051 * Auxiliary routine to mono_class_get_field
5053 * Takes a field index instead of a field token.
5055 static MonoClassField *
5056 mono_class_get_field_idx (MonoClass *class, int idx)
5058 mono_class_setup_fields_locking (class);
5061 if (class->image->uncompressed_metadata) {
5063 * class->field.first points to the FieldPtr table, while idx points into the
5064 * Field table, so we have to do a search.
5066 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
5069 for (i = 0; i < class->field.count; ++i)
5070 if (mono_field_get_name (&class->fields [i]) == name)
5071 return &class->fields [i];
5072 g_assert_not_reached ();
5074 if (class->field.count) {
5075 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
5076 return &class->fields [idx - class->field.first];
5080 class = class->parent;
5086 * mono_class_get_field:
5087 * @class: the class to lookup the field.
5088 * @field_token: the field token
5090 * Returns: A MonoClassField representing the type and offset of
5091 * the field, or a NULL value if the field does not belong to this
5095 mono_class_get_field (MonoClass *class, guint32 field_token)
5097 int idx = mono_metadata_token_index (field_token);
5099 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
5101 return mono_class_get_field_idx (class, idx - 1);
5105 * mono_class_get_field_from_name:
5106 * @klass: the class to lookup the field.
5107 * @name: the field name
5109 * Search the class @klass and it's parents for a field with the name @name.
5111 * Returns: the MonoClassField pointer of the named field or NULL
5114 mono_class_get_field_from_name (MonoClass *klass, const char *name)
5118 mono_class_setup_fields_locking (klass);
5120 for (i = 0; i < klass->field.count; ++i) {
5121 if (strcmp (name, mono_field_get_name (&klass->fields [i])) == 0)
5122 return &klass->fields [i];
5124 klass = klass->parent;
5130 * mono_class_get_field_token:
5131 * @field: the field we need the token of
5133 * Get the token of a field. Note that the tokesn is only valid for the image
5134 * the field was loaded from. Don't use this function for fields in dynamic types.
5136 * Returns: the token representing the field in the image it was loaded from.
5139 mono_class_get_field_token (MonoClassField *field)
5141 MonoClass *klass = field->parent;
5144 mono_class_setup_fields_locking (klass);
5146 for (i = 0; i < klass->field.count; ++i) {
5147 if (&klass->fields [i] == field) {
5148 int idx = klass->field.first + i + 1;
5150 if (klass->image->uncompressed_metadata)
5151 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
5152 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
5155 klass = klass->parent;
5158 g_assert_not_reached ();
5163 mono_field_get_index (MonoClassField *field)
5165 int index = field - field->parent->fields;
5167 g_assert (index >= 0 && index < field->parent->field.count);
5173 * mono_class_get_field_default_value:
5175 * Return the default value of the field as a pointer into the metadata blob.
5178 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
5181 guint32 constant_cols [MONO_CONSTANT_SIZE];
5183 MonoClass *klass = field->parent;
5185 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
5187 if (!klass->ext || !klass->ext->field_def_values) {
5188 mono_loader_lock ();
5189 mono_class_alloc_ext (klass);
5190 if (!klass->ext->field_def_values)
5191 klass->ext->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
5192 mono_loader_unlock ();
5195 field_index = mono_field_get_index (field);
5197 if (!klass->ext->field_def_values [field_index].data) {
5198 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), 0);
5200 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
5202 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
5203 klass->ext->field_def_values [field_index].def_type = constant_cols [MONO_CONSTANT_TYPE];
5204 klass->ext->field_def_values [field_index].data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
5207 *def_type = klass->ext->field_def_values [field_index].def_type;
5208 return klass->ext->field_def_values [field_index].data;
5212 mono_class_get_event_token (MonoEvent *event)
5214 MonoClass *klass = event->parent;
5219 for (i = 0; i < klass->ext->event.count; ++i) {
5220 if (&klass->ext->events [i] == event)
5221 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->ext->event.first + i + 1);
5224 klass = klass->parent;
5227 g_assert_not_reached ();
5232 mono_class_get_property_from_name (MonoClass *klass, const char *name)
5236 gpointer iter = NULL;
5237 while ((p = mono_class_get_properties (klass, &iter))) {
5238 if (! strcmp (name, p->name))
5241 klass = klass->parent;
5247 mono_class_get_property_token (MonoProperty *prop)
5249 MonoClass *klass = prop->parent;
5253 gpointer iter = NULL;
5254 while ((p = mono_class_get_properties (klass, &iter))) {
5255 if (&klass->ext->properties [i] == prop)
5256 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->ext->property.first + i + 1);
5260 klass = klass->parent;
5263 g_assert_not_reached ();
5268 mono_class_name_from_token (MonoImage *image, guint32 type_token)
5270 const char *name, *nspace;
5272 return g_strdup_printf ("DynamicType 0x%08x", type_token);
5274 switch (type_token & 0xff000000){
5275 case MONO_TOKEN_TYPE_DEF: {
5276 guint32 cols [MONO_TYPEDEF_SIZE];
5277 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
5278 guint tidx = mono_metadata_token_index (type_token);
5280 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
5281 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5282 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5283 if (strlen (nspace) == 0)
5284 return g_strdup_printf ("%s", name);
5286 return g_strdup_printf ("%s.%s", nspace, name);
5289 case MONO_TOKEN_TYPE_REF: {
5290 guint32 cols [MONO_TYPEREF_SIZE];
5291 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5293 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5294 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
5295 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
5296 if (strlen (nspace) == 0)
5297 return g_strdup_printf ("%s", name);
5299 return g_strdup_printf ("%s.%s", nspace, name);
5302 case MONO_TOKEN_TYPE_SPEC:
5303 return g_strdup_printf ("Typespec 0x%08x", type_token);
5305 g_assert_not_reached ();
5312 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
5315 return g_strdup_printf ("DynamicAssembly %s", image->name);
5317 switch (type_token & 0xff000000){
5318 case MONO_TOKEN_TYPE_DEF:
5319 return mono_stringify_assembly_name (&image->assembly->aname);
5321 case MONO_TOKEN_TYPE_REF: {
5322 MonoAssemblyName aname;
5323 guint32 cols [MONO_TYPEREF_SIZE];
5324 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
5327 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
5329 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
5330 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
5331 case MONO_RESOLTION_SCOPE_MODULE:
5333 return g_strdup ("");
5334 case MONO_RESOLTION_SCOPE_MODULEREF:
5336 return g_strdup ("");
5337 case MONO_RESOLTION_SCOPE_TYPEREF:
5339 return g_strdup ("");
5340 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
5341 mono_assembly_get_assemblyref (image, idx - 1, &aname);
5342 return mono_stringify_assembly_name (&aname);
5344 g_assert_not_reached ();
5348 case MONO_TOKEN_TYPE_SPEC:
5350 return g_strdup ("");
5352 g_assert_not_reached ();
5359 * mono_class_get_full:
5360 * @image: the image where the class resides
5361 * @type_token: the token for the class
5362 * @context: the generic context used to evaluate generic instantiations in
5364 * Returns: the MonoClass that represents @type_token in @image
5367 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5369 MonoClass *class = NULL;
5371 if (image->dynamic) {
5372 int table = mono_metadata_token_table (type_token);
5374 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
5375 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
5378 return mono_lookup_dynamic_token (image, type_token, context);
5381 switch (type_token & 0xff000000){
5382 case MONO_TOKEN_TYPE_DEF:
5383 class = mono_class_create_from_typedef (image, type_token);
5385 case MONO_TOKEN_TYPE_REF:
5386 class = mono_class_from_typeref (image, type_token);
5388 case MONO_TOKEN_TYPE_SPEC:
5389 class = mono_class_create_from_typespec (image, type_token, context);
5392 g_warning ("unknown token type %x", type_token & 0xff000000);
5393 g_assert_not_reached ();
5397 char *name = mono_class_name_from_token (image, type_token);
5398 char *assembly = mono_assembly_name_from_token (image, type_token);
5399 mono_loader_set_error_type_load (name, assembly);
5407 * mono_type_get_full:
5408 * @image: the image where the type resides
5409 * @type_token: the token for the type
5410 * @context: the generic context used to evaluate generic instantiations in
5412 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
5414 * Returns: the MonoType that represents @type_token in @image
5417 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5419 MonoType *type = NULL;
5420 gboolean inflated = FALSE;
5422 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
5424 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
5426 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
5427 MonoClass *class = mono_class_get_full (image, type_token, context);
5428 return class ? mono_class_get_type (class) : NULL;
5431 type = mono_type_retrieve_from_typespec (image, type_token, context, &inflated);
5434 char *name = mono_class_name_from_token (image, type_token);
5435 char *assembly = mono_assembly_name_from_token (image, type_token);
5437 mono_metadata_free_type (type);
5438 mono_loader_set_error_type_load (name, assembly);
5442 MonoType *tmp = type;
5443 type = mono_class_get_type (mono_class_from_mono_type (type));
5444 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
5445 * A MonoClass::byval_arg of a generic type definion has type CLASS.
5446 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
5448 * The long term solution is to chaise this places and make then set MonoType::type correctly.
5450 if (type->type != tmp->type)
5453 mono_metadata_free_type (tmp);
5460 mono_class_get (MonoImage *image, guint32 type_token)
5462 return mono_class_get_full (image, type_token, NULL);
5466 * mono_image_init_name_cache:
5468 * Initializes the class name cache stored in image->name_cache.
5470 * LOCKING: Acquires the loader lock.
5473 mono_image_init_name_cache (MonoImage *image)
5475 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5476 guint32 cols [MONO_TYPEDEF_SIZE];
5479 guint32 i, visib, nspace_index;
5480 GHashTable *name_cache2, *nspace_table;
5482 mono_loader_lock ();
5484 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
5486 if (image->dynamic) {
5487 mono_loader_unlock ();
5491 /* Temporary hash table to avoid lookups in the nspace_table */
5492 name_cache2 = g_hash_table_new (NULL, NULL);
5494 for (i = 1; i <= t->rows; ++i) {
5495 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5496 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5498 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5499 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5501 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5503 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5504 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5506 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
5507 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5508 if (!nspace_table) {
5509 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5510 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5511 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5514 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
5517 /* Load type names from EXPORTEDTYPES table */
5519 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5520 guint32 cols [MONO_EXP_TYPE_SIZE];
5523 for (i = 0; i < t->rows; ++i) {
5524 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
5525 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
5526 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
5528 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
5529 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5530 if (!nspace_table) {
5531 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5532 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5533 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5536 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
5540 g_hash_table_destroy (name_cache2);
5542 mono_loader_unlock ();
5546 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
5547 const char *name, guint32 index)
5549 GHashTable *nspace_table;
5550 GHashTable *name_cache;
5552 mono_loader_lock ();
5554 if (!image->name_cache)
5555 mono_image_init_name_cache (image);
5557 name_cache = image->name_cache;
5558 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
5559 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5560 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
5562 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
5564 mono_loader_unlock ();
5573 find_nocase (gpointer key, gpointer value, gpointer user_data)
5575 char *name = (char*)key;
5576 FindUserData *data = (FindUserData*)user_data;
5578 if (!data->value && (g_strcasecmp (name, (char*)data->key) == 0))
5579 data->value = value;
5583 * mono_class_from_name_case:
5584 * @image: The MonoImage where the type is looked up in
5585 * @name_space: the type namespace
5586 * @name: the type short name.
5588 * Obtains a MonoClass with a given namespace and a given name which
5589 * is located in the given MonoImage. The namespace and name
5590 * lookups are case insensitive.
5593 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
5595 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5596 guint32 cols [MONO_TYPEDEF_SIZE];
5601 if (image->dynamic) {
5603 FindUserData user_data;
5605 mono_loader_lock ();
5607 if (!image->name_cache)
5608 mono_image_init_name_cache (image);
5610 user_data.key = name_space;
5611 user_data.value = NULL;
5612 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
5614 if (user_data.value) {
5615 GHashTable *nspace_table = (GHashTable*)user_data.value;
5617 user_data.key = name;
5618 user_data.value = NULL;
5620 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
5622 if (user_data.value)
5623 token = GPOINTER_TO_UINT (user_data.value);
5626 mono_loader_unlock ();
5629 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
5635 /* add a cache if needed */
5636 for (i = 1; i <= t->rows; ++i) {
5637 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5638 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5640 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5641 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5643 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5645 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5646 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5647 if (g_strcasecmp (n, name) == 0 && g_strcasecmp (nspace, name_space) == 0)
5648 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
5654 return_nested_in (MonoClass *class, char *nested)
5657 char *s = strchr (nested, '/');
5658 gpointer iter = NULL;
5665 while ((found = mono_class_get_nested_types (class, &iter))) {
5666 if (strcmp (found->name, nested) == 0) {
5668 return return_nested_in (found, s);
5676 search_modules (MonoImage *image, const char *name_space, const char *name)
5678 MonoTableInfo *file_table = &image->tables [MONO_TABLE_FILE];
5679 MonoImage *file_image;
5684 * The EXPORTEDTYPES table only contains public types, so have to search the
5686 * Note: image->modules contains the contents of the MODULEREF table, while
5687 * the real module list is in the FILE table.
5689 for (i = 0; i < file_table->rows; i++) {
5690 guint32 cols [MONO_FILE_SIZE];
5691 mono_metadata_decode_row (file_table, i, cols, MONO_FILE_SIZE);
5692 if (cols [MONO_FILE_FLAGS] == FILE_CONTAINS_NO_METADATA)
5695 file_image = mono_image_load_file_for_image (image, i + 1);
5697 class = mono_class_from_name (file_image, name_space, name);
5707 * mono_class_from_name:
5708 * @image: The MonoImage where the type is looked up in
5709 * @name_space: the type namespace
5710 * @name: the type short name.
5712 * Obtains a MonoClass with a given namespace and a given name which
5713 * is located in the given MonoImage.
5716 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
5718 GHashTable *nspace_table;
5719 MonoImage *loaded_image;
5726 if ((nested = strchr (name, '/'))) {
5727 int pos = nested - name;
5728 int len = strlen (name);
5731 memcpy (buf, name, len + 1);
5733 nested = buf + pos + 1;
5737 if (get_class_from_name) {
5738 gboolean res = get_class_from_name (image, name_space, name, &class);
5741 class = search_modules (image, name_space, name);
5743 return class ? return_nested_in (class, nested) : NULL;
5749 mono_loader_lock ();
5751 if (!image->name_cache)
5752 mono_image_init_name_cache (image);
5754 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
5757 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
5759 mono_loader_unlock ();
5761 if (!token && image->dynamic && image->modules) {
5762 /* Search modules as well */
5763 for (i = 0; i < image->module_count; ++i) {
5764 MonoImage *module = image->modules [i];
5766 class = mono_class_from_name (module, name_space, name);
5773 class = search_modules (image, name_space, name);
5781 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
5782 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5783 guint32 cols [MONO_EXP_TYPE_SIZE];
5786 idx = mono_metadata_token_index (token);
5788 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
5790 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
5791 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
5792 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
5795 class = mono_class_from_name (loaded_image, name_space, name);
5797 return return_nested_in (class, nested);
5799 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
5800 MonoAssembly **references = image->references;
5801 guint32 assembly_idx;
5803 assembly_idx = impl >> MONO_IMPLEMENTATION_BITS;
5805 if (!references [assembly_idx - 1])
5806 mono_assembly_load_reference (image, assembly_idx - 1);
5807 g_assert (references == image->references);
5808 g_assert (references [assembly_idx - 1]);
5809 if (references [assembly_idx - 1] == (gpointer)-1)
5812 /* FIXME: Cycle detection */
5813 return mono_class_from_name (references [assembly_idx - 1]->image, name_space, name);
5815 g_error ("not yet implemented");
5819 token = MONO_TOKEN_TYPE_DEF | token;
5821 class = mono_class_get (image, token);
5823 return return_nested_in (class, nested);
5828 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
5829 gboolean check_interfaces)
5831 g_assert (klassc->idepth > 0);
5832 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
5833 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
5835 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
5838 for (i = 0; i < klass->interface_count; i ++) {
5839 MonoClass *ic = klass->interfaces [i];
5844 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
5849 * MS.NET thinks interfaces are a subclass of Object, so we think it as
5852 if (klassc == mono_defaults.object_class)
5859 mono_class_has_variant_generic_params (MonoClass *klass)
5862 MonoGenericContainer *container;
5864 if (!klass->generic_class)
5867 container = klass->generic_class->container_class->generic_container;
5869 for (i = 0; i < container->type_argc; ++i)
5870 if (mono_generic_container_get_param_info (container, i)->flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
5877 * mono_class_is_assignable_from:
5878 * @klass: the class to be assigned to
5879 * @oklass: the source class
5881 * Return: true if an instance of object oklass can be assigned to an
5882 * instance of object @klass
5885 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
5888 mono_class_init (klass);
5890 if (!oklass->inited)
5891 mono_class_init (oklass);
5893 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
5894 return klass == oklass;
5896 if (MONO_CLASS_IS_INTERFACE (klass)) {
5897 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
5900 /* interface_offsets might not be set for dynamic classes */
5901 if (oklass->reflection_info && !oklass->interface_bitmap)
5903 * oklass might be a generic type parameter but they have
5904 * interface_offsets set.
5906 return mono_reflection_call_is_assignable_to (oklass, klass);
5907 if (!oklass->interface_bitmap)
5908 /* Happens with generic instances of not-yet created dynamic types */
5910 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
5913 if (mono_class_has_variant_generic_params (klass)) {
5914 if (oklass->generic_class) {
5916 gboolean match = FALSE;
5917 MonoClass *container_class1 = klass->generic_class->container_class;
5918 MonoClass *container_class2 = oklass->generic_class->container_class;
5921 * Check whenever the generic definition of oklass implements the
5922 * generic definition of klass. The IMPLEMENTS_INTERFACE stuff is not usable
5923 * here since the relevant tables are not set up.
5925 for (i = 0; i < container_class2->interface_offsets_count; ++i)
5926 if ((container_class2->interfaces_packed [i] == container_class1) || (container_class2->interfaces_packed [i]->generic_class && (container_class2->interfaces_packed [i]->generic_class->container_class == container_class1)))
5930 MonoGenericContainer *container;
5932 container = klass->generic_class->container_class->generic_container;
5935 for (i = 0; i < container->type_argc; ++i) {
5936 MonoClass *param1_class = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [i]);
5937 MonoClass *param2_class = mono_class_from_mono_type (oklass->generic_class->context.class_inst->type_argv [i]);
5939 if (param1_class->valuetype != param2_class->valuetype) {
5944 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
5945 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
5947 if (param1_class != param2_class) {
5948 if ((mono_generic_container_get_param_info (container, i)->flags & MONO_GEN_PARAM_VARIANT) && mono_class_is_assignable_from (param1_class, param2_class))
5950 else if (((mono_generic_container_get_param_info (container, i)->flags & MONO_GEN_PARAM_COVARIANT) && mono_class_is_assignable_from (param2_class, param1_class)))
5964 } else if (klass->rank) {
5965 MonoClass *eclass, *eoclass;
5967 if (oklass->rank != klass->rank)
5970 /* vectors vs. one dimensional arrays */
5971 if (oklass->byval_arg.type != klass->byval_arg.type)
5974 eclass = klass->cast_class;
5975 eoclass = oklass->cast_class;
5978 * a is b does not imply a[] is b[] when a is a valuetype, and
5979 * b is a reference type.
5982 if (eoclass->valuetype) {
5983 if ((eclass == mono_defaults.enum_class) ||
5984 (eclass == mono_defaults.enum_class->parent) ||
5985 (eclass == mono_defaults.object_class))
5989 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
5990 } else if (mono_class_is_nullable (klass)) {
5991 if (mono_class_is_nullable (oklass))
5992 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
5994 return mono_class_is_assignable_from (klass->cast_class, oklass);
5995 } else if (klass == mono_defaults.object_class)
5998 return mono_class_has_parent (oklass, klass);
6002 * mono_class_get_cctor:
6003 * @klass: A MonoClass pointer
6005 * Returns: the static constructor of @klass if it exists, NULL otherwise.
6008 mono_class_get_cctor (MonoClass *klass)
6010 MonoCachedClassInfo cached_info;
6012 if (!klass->has_cctor)
6015 if (mono_class_get_cached_class_info (klass, &cached_info))
6016 return mono_get_method (klass->image, cached_info.cctor_token, klass);
6018 if (klass->generic_class && !klass->methods)
6019 return mono_class_get_inflated_method (klass, mono_class_get_cctor (klass->generic_class->container_class));
6021 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
6025 * mono_class_get_finalizer:
6026 * @klass: The MonoClass pointer
6028 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
6031 mono_class_get_finalizer (MonoClass *klass)
6033 MonoCachedClassInfo cached_info;
6036 mono_class_init (klass);
6037 if (!klass->has_finalize)
6040 if (mono_class_get_cached_class_info (klass, &cached_info))
6041 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
6043 mono_class_setup_vtable (klass);
6044 return klass->vtable [finalize_slot];
6049 * mono_class_needs_cctor_run:
6050 * @klass: the MonoClass pointer
6051 * @caller: a MonoMethod describing the caller
6053 * Determines whenever the class has a static constructor and whenever it
6054 * needs to be called when executing CALLER.
6057 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
6061 method = mono_class_get_cctor (klass);
6063 return (method == caller) ? FALSE : TRUE;
6069 * mono_class_array_element_size:
6072 * Returns: the number of bytes an element of type @klass
6073 * uses when stored into an array.
6076 mono_class_array_element_size (MonoClass *klass)
6078 MonoType *type = &klass->byval_arg;
6081 switch (type->type) {
6084 case MONO_TYPE_BOOLEAN:
6088 case MONO_TYPE_CHAR:
6097 case MONO_TYPE_CLASS:
6098 case MONO_TYPE_STRING:
6099 case MONO_TYPE_OBJECT:
6100 case MONO_TYPE_SZARRAY:
6101 case MONO_TYPE_ARRAY:
6103 case MONO_TYPE_MVAR:
6104 return sizeof (gpointer);
6109 case MONO_TYPE_VALUETYPE:
6110 if (type->data.klass->enumtype) {
6111 type = mono_class_enum_basetype (type->data.klass);
6112 klass = klass->element_class;
6115 return mono_class_instance_size (klass) - sizeof (MonoObject);
6116 case MONO_TYPE_GENERICINST:
6117 type = &type->data.generic_class->container_class->byval_arg;
6120 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
6126 * mono_array_element_size:
6127 * @ac: pointer to a #MonoArrayClass
6129 * Returns: the size of single array element.
6132 mono_array_element_size (MonoClass *ac)
6134 g_assert (ac->rank);
6135 return ac->sizes.element_size;
6139 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
6140 MonoGenericContext *context)
6142 if (image->dynamic) {
6143 MonoClass *tmp_handle_class;
6144 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
6146 g_assert (tmp_handle_class);
6148 *handle_class = tmp_handle_class;
6150 if (tmp_handle_class == mono_defaults.typehandle_class)
6151 return &((MonoClass*)obj)->byval_arg;
6156 switch (token & 0xff000000) {
6157 case MONO_TOKEN_TYPE_DEF:
6158 case MONO_TOKEN_TYPE_REF:
6159 case MONO_TOKEN_TYPE_SPEC: {
6162 *handle_class = mono_defaults.typehandle_class;
6163 type = mono_type_get_full (image, token, context);
6166 mono_class_init (mono_class_from_mono_type (type));
6167 /* We return a MonoType* as handle */
6170 case MONO_TOKEN_FIELD_DEF: {
6172 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
6174 *handle_class = mono_defaults.fieldhandle_class;
6175 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
6178 mono_class_init (class);
6179 return mono_class_get_field (class, token);
6181 case MONO_TOKEN_METHOD_DEF:
6182 case MONO_TOKEN_METHOD_SPEC: {
6184 meth = mono_get_method_full (image, token, NULL, context);
6186 *handle_class = mono_defaults.methodhandle_class;
6189 case MONO_TOKEN_MEMBER_REF: {
6190 guint32 cols [MONO_MEMBERREF_SIZE];
6192 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
6193 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
6194 mono_metadata_decode_blob_size (sig, &sig);
6195 if (*sig == 0x6) { /* it's a field */
6197 MonoClassField *field;
6198 field = mono_field_from_token (image, token, &klass, context);
6200 *handle_class = mono_defaults.fieldhandle_class;
6204 meth = mono_get_method_full (image, token, NULL, context);
6206 *handle_class = mono_defaults.methodhandle_class;
6211 g_warning ("Unknown token 0x%08x in ldtoken", token);
6218 * This function might need to call runtime functions so it can't be part
6219 * of the metadata library.
6221 static MonoLookupDynamicToken lookup_dynamic = NULL;
6224 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
6226 lookup_dynamic = func;
6230 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
6232 MonoClass *handle_class;
6234 return lookup_dynamic (image, token, TRUE, &handle_class, context);
6238 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
6240 return lookup_dynamic (image, token, valid_token, handle_class, context);
6243 static MonoGetCachedClassInfo get_cached_class_info = NULL;
6246 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
6248 get_cached_class_info = func;
6252 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
6254 if (!get_cached_class_info)
6257 return get_cached_class_info (klass, res);
6261 mono_install_get_class_from_name (MonoGetClassFromName func)
6263 get_class_from_name = func;
6267 mono_class_get_image (MonoClass *klass)
6269 return klass->image;
6273 * mono_class_get_element_class:
6274 * @klass: the MonoClass to act on
6276 * Returns: the element class of an array or an enumeration.
6279 mono_class_get_element_class (MonoClass *klass)
6281 return klass->element_class;
6285 * mono_class_is_valuetype:
6286 * @klass: the MonoClass to act on
6288 * Returns: true if the MonoClass represents a ValueType.
6291 mono_class_is_valuetype (MonoClass *klass)
6293 return klass->valuetype;
6297 * mono_class_is_enum:
6298 * @klass: the MonoClass to act on
6300 * Returns: true if the MonoClass represents an enumeration.
6303 mono_class_is_enum (MonoClass *klass)
6305 return klass->enumtype;
6309 * mono_class_enum_basetype:
6310 * @klass: the MonoClass to act on
6312 * Returns: the underlying type representation for an enumeration.
6315 mono_class_enum_basetype (MonoClass *klass)
6317 if (klass->element_class == klass)
6321 return &klass->element_class->byval_arg;
6325 * mono_class_get_parent
6326 * @klass: the MonoClass to act on
6328 * Returns: the parent class for this class.
6331 mono_class_get_parent (MonoClass *klass)
6333 return klass->parent;
6337 * mono_class_get_nesting_type;
6338 * @klass: the MonoClass to act on
6340 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
6343 mono_class_get_nesting_type (MonoClass *klass)
6345 return klass->nested_in;
6349 * mono_class_get_rank:
6350 * @klass: the MonoClass to act on
6352 * Returns: the rank for the array (the number of dimensions).
6355 mono_class_get_rank (MonoClass *klass)
6361 * mono_class_get_flags:
6362 * @klass: the MonoClass to act on
6364 * The type flags from the TypeDef table from the metadata.
6365 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
6368 * Returns: the flags from the TypeDef table.
6371 mono_class_get_flags (MonoClass *klass)
6373 return klass->flags;
6377 * mono_class_get_name
6378 * @klass: the MonoClass to act on
6380 * Returns: the name of the class.
6383 mono_class_get_name (MonoClass *klass)
6389 * mono_class_get_namespace:
6390 * @klass: the MonoClass to act on
6392 * Returns: the namespace of the class.
6395 mono_class_get_namespace (MonoClass *klass)
6397 return klass->name_space;
6401 * mono_class_get_type:
6402 * @klass: the MonoClass to act on
6404 * This method returns the internal Type representation for the class.
6406 * Returns: the MonoType from the class.
6409 mono_class_get_type (MonoClass *klass)
6411 return &klass->byval_arg;
6415 * mono_class_get_type_token
6416 * @klass: the MonoClass to act on
6418 * This method returns type token for the class.
6420 * Returns: the type token for the class.
6423 mono_class_get_type_token (MonoClass *klass)
6425 return klass->type_token;
6429 * mono_class_get_byref_type:
6430 * @klass: the MonoClass to act on
6435 mono_class_get_byref_type (MonoClass *klass)
6437 return &klass->this_arg;
6441 * mono_class_num_fields:
6442 * @klass: the MonoClass to act on
6444 * Returns: the number of static and instance fields in the class.
6447 mono_class_num_fields (MonoClass *klass)
6449 return klass->field.count;
6453 * mono_class_num_methods:
6454 * @klass: the MonoClass to act on
6456 * Returns: the number of methods in the class.
6459 mono_class_num_methods (MonoClass *klass)
6461 return klass->method.count;
6465 * mono_class_num_properties
6466 * @klass: the MonoClass to act on
6468 * Returns: the number of properties in the class.
6471 mono_class_num_properties (MonoClass *klass)
6473 mono_class_setup_properties (klass);
6475 return klass->ext->property.count;
6479 * mono_class_num_events:
6480 * @klass: the MonoClass to act on
6482 * Returns: the number of events in the class.
6485 mono_class_num_events (MonoClass *klass)
6487 mono_class_setup_events (klass);
6489 return klass->ext->event.count;
6493 * mono_class_get_fields:
6494 * @klass: the MonoClass to act on
6496 * This routine is an iterator routine for retrieving the fields in a class.
6498 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6499 * iterate over all of the elements. When no more values are
6500 * available, the return value is NULL.
6502 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
6505 mono_class_get_fields (MonoClass* klass, gpointer *iter)
6507 MonoClassField* field;
6511 mono_class_setup_fields_locking (klass);
6512 if (klass->exception_type)
6514 /* start from the first */
6515 if (klass->field.count) {
6516 return *iter = &klass->fields [0];
6524 if (field < &klass->fields [klass->field.count]) {
6525 return *iter = field;
6531 * mono_class_get_methods
6532 * @klass: the MonoClass to act on
6534 * This routine is an iterator routine for retrieving the fields in a class.
6536 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6537 * iterate over all of the elements. When no more values are
6538 * available, the return value is NULL.
6540 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
6543 mono_class_get_methods (MonoClass* klass, gpointer *iter)
6545 MonoMethod** method;
6549 mono_class_init (klass);
6551 mono_class_setup_methods (klass);
6552 /* start from the first */
6553 if (klass->method.count) {
6554 *iter = &klass->methods [0];
6555 return klass->methods [0];
6563 if (method < &klass->methods [klass->method.count]) {
6571 * mono_class_get_virtual_methods:
6573 * Iterate over the virtual methods of KLASS.
6575 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
6578 mono_class_get_virtual_methods (MonoClass* klass, gpointer *iter)
6580 MonoMethod** method;
6583 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass) || mono_debug_using_mono_debugger ()) {
6585 mono_class_setup_methods (klass);
6586 /* start from the first */
6587 method = &klass->methods [0];
6592 while (method < &klass->methods [klass->method.count]) {
6593 if (((*method)->flags & METHOD_ATTRIBUTE_VIRTUAL))
6597 if (method < &klass->methods [klass->method.count]) {
6604 /* Search directly in metadata to avoid calling setup_methods () */
6605 MonoMethod *res = NULL;
6611 start_index = GPOINTER_TO_UINT (*iter);
6614 for (i = start_index; i < klass->method.count; ++i) {
6615 guint32 cols [MONO_METHOD_SIZE];
6617 /* class->method.first points into the methodptr table */
6618 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6620 if (cols [MONO_METHOD_FLAGS] & METHOD_ATTRIBUTE_VIRTUAL)
6624 if (i < klass->method.count) {
6625 res = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6626 /* Add 1 here so the if (*iter) check fails */
6627 *iter = GUINT_TO_POINTER (i + 1);
6636 * mono_class_get_properties:
6637 * @klass: the MonoClass to act on
6639 * This routine is an iterator routine for retrieving the properties in a class.
6641 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6642 * iterate over all of the elements. When no more values are
6643 * available, the return value is NULL.
6645 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
6648 mono_class_get_properties (MonoClass* klass, gpointer *iter)
6650 MonoProperty* property;
6654 mono_class_init (klass);
6656 mono_class_setup_properties (klass);
6657 /* start from the first */
6658 if (klass->ext->property.count) {
6659 return *iter = &klass->ext->properties [0];
6667 if (property < &klass->ext->properties [klass->ext->property.count]) {
6668 return *iter = property;
6674 * mono_class_get_events:
6675 * @klass: the MonoClass to act on
6677 * This routine is an iterator routine for retrieving the properties in a class.
6679 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6680 * iterate over all of the elements. When no more values are
6681 * available, the return value is NULL.
6683 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
6686 mono_class_get_events (MonoClass* klass, gpointer *iter)
6692 mono_class_init (klass);
6694 mono_class_setup_events (klass);
6695 /* start from the first */
6696 if (klass->ext->event.count) {
6697 return *iter = &klass->ext->events [0];
6705 if (event < &klass->ext->events [klass->ext->event.count]) {
6706 return *iter = event;
6712 * mono_class_get_interfaces
6713 * @klass: the MonoClass to act on
6715 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
6717 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6718 * iterate over all of the elements. When no more values are
6719 * available, the return value is NULL.
6721 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6724 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
6731 mono_class_init (klass);
6732 if (!klass->interfaces_inited)
6733 mono_class_setup_interfaces (klass);
6734 /* start from the first */
6735 if (klass->interface_count) {
6736 *iter = &klass->interfaces [0];
6737 return klass->interfaces [0];
6745 if (iface < &klass->interfaces [klass->interface_count]) {
6753 * mono_class_get_nested_types
6754 * @klass: the MonoClass to act on
6756 * This routine is an iterator routine for retrieving the nested types of a class.
6757 * This works only if @klass is non-generic, or a generic type definition.
6759 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6760 * iterate over all of the elements. When no more values are
6761 * available, the return value is NULL.
6763 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6766 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
6774 mono_class_init (klass);
6775 if (!klass->nested_classes_inited) {
6776 if (!klass->type_token)
6777 klass->nested_classes_inited = TRUE;
6778 mono_loader_lock ();
6779 if (!klass->nested_classes_inited) {
6780 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, 1);
6783 guint32 cols [MONO_NESTED_CLASS_SIZE];
6784 mono_metadata_decode_row (&klass->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
6785 nclass = mono_class_create_from_typedef (klass->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
6786 mono_class_alloc_ext (klass);
6787 klass->ext->nested_classes = g_list_prepend_image (klass->image, klass->ext->nested_classes, nclass);
6789 i = mono_metadata_nesting_typedef (klass->image, klass->type_token, i + 1);
6792 mono_memory_barrier ();
6793 klass->nested_classes_inited = TRUE;
6794 mono_loader_unlock ();
6798 /* start from the first */
6799 if (klass->ext && klass->ext->nested_classes) {
6800 *iter = klass->ext->nested_classes;
6801 return klass->ext->nested_classes->data;
6803 /* no nested types */
6817 * mono_field_get_name:
6818 * @field: the MonoClassField to act on
6820 * Returns: the name of the field.
6823 mono_field_get_name (MonoClassField *field)
6829 * mono_field_get_type:
6830 * @field: the MonoClassField to act on
6832 * Returns: MonoType of the field.
6835 mono_field_get_type (MonoClassField *field)
6841 * mono_field_get_type:
6842 * @field: the MonoClassField to act on
6844 * Returns: MonoClass where the field was defined.
6847 mono_field_get_parent (MonoClassField *field)
6849 return field->parent;
6853 * mono_field_get_flags;
6854 * @field: the MonoClassField to act on
6856 * The metadata flags for a field are encoded using the
6857 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6859 * Returns: the flags for the field.
6862 mono_field_get_flags (MonoClassField *field)
6864 return field->type->attrs;
6868 * mono_field_get_offset;
6869 * @field: the MonoClassField to act on
6871 * Returns: the field offset.
6874 mono_field_get_offset (MonoClassField *field)
6876 return field->offset;
6880 mono_field_get_rva (MonoClassField *field)
6884 MonoClass *klass = field->parent;
6886 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA);
6888 if (!klass->ext || !klass->ext->field_def_values) {
6889 mono_loader_lock ();
6890 mono_class_alloc_ext (klass);
6891 if (!klass->ext->field_def_values)
6892 klass->ext->field_def_values = mono_image_alloc0 (klass->image, sizeof (MonoFieldDefaultValue) * klass->field.count);
6893 mono_loader_unlock ();
6896 field_index = mono_field_get_index (field);
6898 if (!klass->ext->field_def_values [field_index].data && !klass->image->dynamic) {
6899 mono_metadata_field_info (field->parent->image, klass->field.first + field_index, NULL, &rva, NULL);
6901 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field), field->parent->name);
6902 klass->ext->field_def_values [field_index].data = mono_image_rva_map (field->parent->image, rva);
6905 return klass->ext->field_def_values [field_index].data;
6909 * mono_field_get_data;
6910 * @field: the MonoClassField to act on
6912 * Returns: pointer to the metadata constant value or to the field
6913 * data if it has an RVA flag.
6916 mono_field_get_data (MonoClassField *field)
6918 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT) {
6919 MonoTypeEnum def_type;
6921 return mono_class_get_field_default_value (field, &def_type);
6922 } else if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
6923 return mono_field_get_rva (field);
6930 * mono_property_get_name:
6931 * @prop: the MonoProperty to act on
6933 * Returns: the name of the property
6936 mono_property_get_name (MonoProperty *prop)
6942 * mono_property_get_set_method
6943 * @prop: the MonoProperty to act on.
6945 * Returns: the setter method of the property (A MonoMethod)
6948 mono_property_get_set_method (MonoProperty *prop)
6954 * mono_property_get_get_method
6955 * @prop: the MonoProperty to act on.
6957 * Returns: the setter method of the property (A MonoMethod)
6960 mono_property_get_get_method (MonoProperty *prop)
6966 * mono_property_get_parent:
6967 * @prop: the MonoProperty to act on.
6969 * Returns: the MonoClass where the property was defined.
6972 mono_property_get_parent (MonoProperty *prop)
6974 return prop->parent;
6978 * mono_property_get_flags:
6979 * @prop: the MonoProperty to act on.
6981 * The metadata flags for a property are encoded using the
6982 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6984 * Returns: the flags for the property.
6987 mono_property_get_flags (MonoProperty *prop)
6993 * mono_event_get_name:
6994 * @event: the MonoEvent to act on
6996 * Returns: the name of the event.
6999 mono_event_get_name (MonoEvent *event)
7005 * mono_event_get_add_method:
7006 * @event: The MonoEvent to act on.
7008 * Returns: the @add' method for the event (a MonoMethod).
7011 mono_event_get_add_method (MonoEvent *event)
7017 * mono_event_get_remove_method:
7018 * @event: The MonoEvent to act on.
7020 * Returns: the @remove method for the event (a MonoMethod).
7023 mono_event_get_remove_method (MonoEvent *event)
7025 return event->remove;
7029 * mono_event_get_raise_method:
7030 * @event: The MonoEvent to act on.
7032 * Returns: the @raise method for the event (a MonoMethod).
7035 mono_event_get_raise_method (MonoEvent *event)
7037 return event->raise;
7041 * mono_event_get_parent:
7042 * @event: the MonoEvent to act on.
7044 * Returns: the MonoClass where the event is defined.
7047 mono_event_get_parent (MonoEvent *event)
7049 return event->parent;
7053 * mono_event_get_flags
7054 * @event: the MonoEvent to act on.
7056 * The metadata flags for an event are encoded using the
7057 * EVENT_* constants. See the tabledefs.h file for details.
7059 * Returns: the flags for the event.
7062 mono_event_get_flags (MonoEvent *event)
7064 return event->attrs;
7068 * mono_class_get_method_from_name:
7069 * @klass: where to look for the method
7070 * @name_space: name of the method
7071 * @param_count: number of parameters. -1 for any number.
7073 * Obtains a MonoMethod with a given name and number of parameters.
7074 * It only works if there are no multiple signatures for any given method name.
7077 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
7079 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
7083 find_method_in_metadata (MonoClass *klass, const char *name, int param_count, int flags)
7085 MonoMethod *res = NULL;
7088 /* Search directly in the metadata to avoid calling setup_methods () */
7089 for (i = 0; i < klass->method.count; ++i) {
7090 guint32 cols [MONO_METHOD_SIZE];
7093 /* class->method.first points into the methodptr table */
7094 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
7096 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
7097 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
7098 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
7109 * mono_class_get_method_from_name_flags:
7110 * @klass: where to look for the method
7111 * @name_space: name of the method
7112 * @param_count: number of parameters. -1 for any number.
7113 * @flags: flags which must be set in the method
7115 * Obtains a MonoMethod with a given name and number of parameters.
7116 * It only works if there are no multiple signatures for any given method name.
7119 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
7121 MonoMethod *res = NULL;
7124 mono_class_init (klass);
7126 if (klass->generic_class && !klass->methods) {
7127 res = mono_class_get_method_from_name_flags (klass->generic_class->container_class, name, param_count, flags);
7129 res = mono_class_inflate_generic_method_full (res, klass, mono_class_get_context (klass));
7133 if (klass->methods || !MONO_CLASS_HAS_STATIC_METADATA (klass)) {
7134 mono_class_setup_methods (klass);
7135 for (i = 0; i < klass->method.count; ++i) {
7136 MonoMethod *method = klass->methods [i];
7138 if (method->name[0] == name [0] &&
7139 !strcmp (name, method->name) &&
7140 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
7141 ((method->flags & flags) == flags)) {
7148 res = find_method_in_metadata (klass, name, param_count, flags);
7155 * mono_class_set_failure:
7156 * @klass: class in which the failure was detected
7157 * @ex_type: the kind of exception/error to be thrown (later)
7158 * @ex_data: exception data (specific to each type of exception/error)
7160 * Keep a detected failure informations in the class for later processing.
7161 * Note that only the first failure is kept.
7163 * LOCKING: Acquires the loader lock.
7166 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
7168 if (klass->exception_type)
7171 mono_loader_lock ();
7172 klass->exception_type = ex_type;
7174 mono_image_property_insert (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA, ex_data);
7175 mono_loader_unlock ();
7181 * mono_class_get_exception_data:
7183 * Return the exception_data property of KLASS.
7185 * LOCKING: Acquires the loader lock.
7188 mono_class_get_exception_data (MonoClass *klass)
7190 return mono_image_property_lookup (klass->image, klass, MONO_CLASS_PROP_EXCEPTION_DATA);
7194 * mono_classes_init:
7196 * Initialize the resources used by this module.
7199 mono_classes_init (void)
7201 mono_counters_register ("Inflated methods size",
7202 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_methods_size);
7203 mono_counters_register ("Inflated classes",
7204 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes);
7205 mono_counters_register ("Inflated classes size",
7206 MONO_COUNTER_GENERICS | MONO_COUNTER_INT, &inflated_classes_size);
7207 mono_counters_register ("MonoClass size",
7208 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &classes_size);
7209 mono_counters_register ("MonoClassExt size",
7210 MONO_COUNTER_METADATA | MONO_COUNTER_INT, &class_ext_size);
7214 * mono_classes_cleanup:
7216 * Free the resources used by this module.
7219 mono_classes_cleanup (void)
7221 if (global_interface_bitset)
7222 mono_bitset_free (global_interface_bitset);
7226 * mono_class_get_exception_for_failure:
7227 * @klass: class in which the failure was detected
7229 * Return a constructed MonoException than the caller can then throw
7230 * using mono_raise_exception - or NULL if no failure is present (or
7231 * doesn't result in an exception).
7234 mono_class_get_exception_for_failure (MonoClass *klass)
7236 gpointer exception_data = mono_class_get_exception_data (klass);
7238 switch (klass->exception_type) {
7239 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
7240 MonoDomain *domain = mono_domain_get ();
7241 MonoSecurityManager* secman = mono_security_manager_get_methods ();
7242 MonoMethod *method = exception_data;
7243 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
7244 MonoObject *exc = NULL;
7248 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
7249 args [2] = mono_type_get_object (domain, &klass->byval_arg);
7250 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
7252 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
7253 return (MonoException*) exc;
7255 case MONO_EXCEPTION_TYPE_LOAD: {
7258 char *str = mono_type_get_full_name (klass);
7259 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
7260 name = mono_string_new (mono_domain_get (), str);
7262 ex = mono_get_exception_type_load (name, astr);
7266 case MONO_EXCEPTION_MISSING_METHOD: {
7267 char *class_name = exception_data;
7268 char *assembly_name = class_name + strlen (class_name) + 1;
7270 return mono_get_exception_missing_method (class_name, assembly_name);
7272 case MONO_EXCEPTION_MISSING_FIELD: {
7273 char *class_name = exception_data;
7274 char *member_name = class_name + strlen (class_name) + 1;
7276 return mono_get_exception_missing_field (class_name, member_name);
7278 case MONO_EXCEPTION_FILE_NOT_FOUND: {
7279 char *msg_format = exception_data;
7280 char *assembly_name = msg_format + strlen (msg_format) + 1;
7281 char *msg = g_strdup_printf (msg_format, assembly_name);
7284 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
7290 case MONO_EXCEPTION_BAD_IMAGE: {
7291 return mono_get_exception_bad_image_format (exception_data);
7294 MonoLoaderError *error;
7297 error = mono_loader_get_last_error ();
7299 ex = mono_loader_error_prepare_exception (error);
7303 /* TODO - handle other class related failures */
7310 is_nesting_type (MonoClass *outer_klass, MonoClass *inner_klass)
7312 outer_klass = mono_class_get_generic_type_definition (outer_klass);
7313 inner_klass = mono_class_get_generic_type_definition (inner_klass);
7315 if (outer_klass == inner_klass)
7317 inner_klass = inner_klass->nested_in;
7318 } while (inner_klass);
7323 mono_class_get_generic_type_definition (MonoClass *klass)
7325 return klass->generic_class ? klass->generic_class->container_class : klass;
7329 * Check if @klass is a subtype of @parent ignoring generic instantiations.
7331 * Generic instantiations are ignored for all super types of @klass.
7333 * Visibility checks ignoring generic instantiations.
7336 mono_class_has_parent_and_ignore_generics (MonoClass *klass, MonoClass *parent)
7339 klass = mono_class_get_generic_type_definition (klass);
7340 parent = mono_class_get_generic_type_definition (parent);
7342 for (i = 0; i < klass->idepth; ++i) {
7343 if (parent == mono_class_get_generic_type_definition (klass->supertypes [i]))
7349 * Subtype can only access parent members with family protection if the site object
7350 * is subclass of Subtype. For example:
7351 * class A { protected int x; }
7353 * void valid_access () {
7357 * void invalid_access () {
7364 is_valid_family_access (MonoClass *access_klass, MonoClass *member_klass, MonoClass *context_klass)
7366 if (!mono_class_has_parent_and_ignore_generics (access_klass, member_klass))
7369 if (context_klass == NULL)
7371 /*if access_klass is not member_klass context_klass must be type compat*/
7372 if (access_klass != member_klass && !mono_class_has_parent_and_ignore_generics (context_klass, access_klass))
7378 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
7381 if (accessing == accessed)
7383 if (!accessed || !accessing)
7385 mono_assembly_load_friends (accessed);
7386 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
7387 MonoAssemblyName *friend = tmp->data;
7388 /* Be conservative with checks */
7391 if (strcmp (accessing->aname.name, friend->name))
7393 if (friend->public_key_token [0]) {
7394 if (!accessing->aname.public_key_token [0])
7396 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
7405 * If klass is a generic type or if it is derived from a generic type, return the
7406 * MonoClass of the generic definition
7407 * Returns NULL if not found
7410 get_generic_definition_class (MonoClass *klass)
7413 if (klass->generic_class && klass->generic_class->container_class)
7414 return klass->generic_class->container_class;
7415 klass = klass->parent;
7421 can_access_instantiation (MonoClass *access_klass, MonoGenericInst *ginst)
7424 for (i = 0; i < ginst->type_argc; ++i) {
7425 MonoType *type = ginst->type_argv[i];
7426 switch (type->type) {
7427 case MONO_TYPE_SZARRAY:
7428 if (!can_access_type (access_klass, type->data.klass))
7431 case MONO_TYPE_ARRAY:
7432 if (!can_access_type (access_klass, type->data.array->eklass))
7436 if (!can_access_type (access_klass, mono_class_from_mono_type (type->data.type)))
7439 case MONO_TYPE_CLASS:
7440 case MONO_TYPE_VALUETYPE:
7441 case MONO_TYPE_GENERICINST:
7442 if (!can_access_type (access_klass, mono_class_from_mono_type (type)))
7450 can_access_type (MonoClass *access_klass, MonoClass *member_klass)
7454 if (access_klass->element_class && !access_klass->enumtype)
7455 access_klass = access_klass->element_class;
7457 if (member_klass->element_class && !member_klass->enumtype)
7458 member_klass = member_klass->element_class;
7460 access_level = member_klass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK;
7462 if (member_klass->byval_arg.type == MONO_TYPE_VAR || member_klass->byval_arg.type == MONO_TYPE_MVAR)
7465 if (member_klass->generic_class && !can_access_instantiation (access_klass, member_klass->generic_class->context.class_inst))
7468 if (is_nesting_type (access_klass, member_klass) || (access_klass->nested_in && is_nesting_type (access_klass->nested_in, member_klass)))
7471 if (member_klass->nested_in && !can_access_type (access_klass, member_klass->nested_in))
7474 switch (access_level) {
7475 case TYPE_ATTRIBUTE_NOT_PUBLIC:
7476 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7478 case TYPE_ATTRIBUTE_PUBLIC:
7481 case TYPE_ATTRIBUTE_NESTED_PUBLIC:
7484 case TYPE_ATTRIBUTE_NESTED_PRIVATE:
7485 return is_nesting_type (member_klass, access_klass);
7487 case TYPE_ATTRIBUTE_NESTED_FAMILY:
7488 return mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7490 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY:
7491 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7493 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM:
7494 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) &&
7495 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7497 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM:
7498 return can_access_internals (access_klass->image->assembly, member_klass->nested_in->image->assembly) ||
7499 mono_class_has_parent_and_ignore_generics (access_klass, member_klass->nested_in);
7504 /* FIXME: check visibility of type, too */
7506 can_access_member (MonoClass *access_klass, MonoClass *member_klass, MonoClass* context_klass, int access_level)
7508 MonoClass *member_generic_def;
7509 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
7510 access_klass->generic_container) &&
7511 (member_generic_def = get_generic_definition_class (member_klass))) {
7512 MonoClass *access_container;
7514 if (access_klass->generic_container)
7515 access_container = access_klass;
7517 access_container = access_klass->generic_class->container_class;
7519 if (can_access_member (access_container, member_generic_def, context_klass, access_level))
7523 /* Partition I 8.5.3.2 */
7524 /* the access level values are the same for fields and methods */
7525 switch (access_level) {
7526 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
7527 /* same compilation unit */
7528 return access_klass->image == member_klass->image;
7529 case FIELD_ATTRIBUTE_PRIVATE:
7530 return access_klass == member_klass;
7531 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
7532 if (is_valid_family_access (access_klass, member_klass, context_klass) &&
7533 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
7536 case FIELD_ATTRIBUTE_ASSEMBLY:
7537 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7538 case FIELD_ATTRIBUTE_FAMILY:
7539 if (is_valid_family_access (access_klass, member_klass, context_klass))
7542 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
7543 if (is_valid_family_access (access_klass, member_klass, context_klass))
7545 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
7546 case FIELD_ATTRIBUTE_PUBLIC:
7553 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
7555 /* FIXME: check all overlapping fields */
7556 int can = can_access_member (method->klass, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7558 MonoClass *nested = method->klass->nested_in;
7560 can = can_access_member (nested, field->parent, NULL, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7563 nested = nested->nested_in;
7570 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
7572 int can = can_access_member (method->klass, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7574 MonoClass *nested = method->klass->nested_in;
7576 can = can_access_member (nested, called->klass, NULL, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7579 nested = nested->nested_in;
7584 * with generics calls to explicit interface implementations can be expressed
7585 * directly: the method is private, but we must allow it. This may be opening
7586 * a hole or the generics code should handle this differently.
7587 * Maybe just ensure the interface type is public.
7589 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
7595 * mono_method_can_access_method_full:
7596 * @method: The caller method
7597 * @called: The called method
7598 * @context_klass: The static type on stack of the owner @called object used
7600 * This function must be used with instance calls, as they have more strict family accessibility.
7601 * It can be used with static methods, but context_klass should be NULL.
7603 * Returns: TRUE if caller have proper visibility and acessibility to @called
7606 mono_method_can_access_method_full (MonoMethod *method, MonoMethod *called, MonoClass *context_klass)
7608 MonoClass *access_class = method->klass;
7609 MonoClass *member_class = called->klass;
7610 int can = can_access_member (access_class, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7612 MonoClass *nested = access_class->nested_in;
7614 can = can_access_member (nested, member_class, context_klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
7617 nested = nested->nested_in;
7624 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7627 if (called->is_inflated) {
7628 MonoMethodInflated * infl = (MonoMethodInflated*)called;
7629 if (infl->context.method_inst && !can_access_instantiation (access_class, infl->context.method_inst))
7638 * mono_method_can_access_method_with_context:
7639 * @method: The caller method
7640 * @field: The accessed field
7641 * @context_klass: The static type on stack of the owner @field object used
7643 * This function must be used with instance fields, as they have more strict family accessibility.
7644 * It can be used with static fields, but context_klass should be NULL.
7646 * Returns: TRUE if caller have proper visibility and acessibility to @field
7649 mono_method_can_access_field_full (MonoMethod *method, MonoClassField *field, MonoClass *context_klass)
7651 MonoClass *access_class = method->klass;
7652 MonoClass *member_class = field->parent;
7653 /* FIXME: check all overlapping fields */
7654 int can = can_access_member (access_class, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7656 MonoClass *nested = access_class->nested_in;
7658 can = can_access_member (nested, member_class, context_klass, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
7661 nested = nested->nested_in;
7668 if (!can_access_type (access_class, member_class) && (!access_class->nested_in || !can_access_type (access_class->nested_in, member_class)))
7674 * mono_type_is_valid_enum_basetype:
7675 * @type: The MonoType to check
7677 * Returns: TRUE if the type can be used as the basetype of an enum
7679 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
7680 switch (type->type) {
7683 case MONO_TYPE_BOOLEAN:
7686 case MONO_TYPE_CHAR:
7699 * mono_class_is_valid_enum:
7700 * @klass: An enum class to be validated
7702 * This method verify the required properties an enum should have.
7704 * Returns: TRUE if the informed enum class is valid
7706 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
7707 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
7708 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
7710 gboolean mono_class_is_valid_enum (MonoClass *klass) {
7711 MonoClassField * field;
7712 gpointer iter = NULL;
7713 gboolean found_base_field = FALSE;
7715 g_assert (klass->enumtype);
7716 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
7717 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
7721 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
7724 while ((field = mono_class_get_fields (klass, &iter))) {
7725 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
7726 if (found_base_field)
7728 found_base_field = TRUE;
7729 if (!mono_type_is_valid_enum_basetype (field->type))
7734 if (!found_base_field)
7737 if (klass->method.count > 0)
7744 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
7746 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
7750 * mono_class_generic_sharing_enabled:
7753 * Returns whether generic sharing is enabled for class.
7755 * This is a stop-gap measure to slowly introduce generic sharing
7756 * until we have all the issues sorted out, at which time this
7757 * function will disappear and generic sharing will always be enabled.
7760 mono_class_generic_sharing_enabled (MonoClass *class)
7762 #if defined(__i386__) || defined(__x86_64__) || defined(__arm__) || defined(__mono_ppc__)
7763 static gboolean supported = TRUE;
7765 /* Not supported by the JIT backends */
7766 static gboolean supported = FALSE;
7768 static int generic_sharing = MONO_GENERIC_SHARING_NONE;
7769 static gboolean inited = FALSE;
7775 generic_sharing = MONO_GENERIC_SHARING_ALL;
7777 generic_sharing = MONO_GENERIC_SHARING_NONE;
7779 if ((option = g_getenv ("MONO_GENERIC_SHARING"))) {
7780 if (strcmp (option, "corlib") == 0)
7781 generic_sharing = MONO_GENERIC_SHARING_CORLIB;
7782 else if (strcmp (option, "collections") == 0)
7783 generic_sharing = MONO_GENERIC_SHARING_COLLECTIONS;
7784 else if (strcmp (option, "all") == 0)
7785 generic_sharing = MONO_GENERIC_SHARING_ALL;
7786 else if (strcmp (option, "none") == 0)
7787 generic_sharing = MONO_GENERIC_SHARING_NONE;
7789 g_warning ("Unknown generic sharing option `%s'.", option);
7793 generic_sharing = MONO_GENERIC_SHARING_NONE;
7798 switch (generic_sharing) {
7799 case MONO_GENERIC_SHARING_NONE:
7801 case MONO_GENERIC_SHARING_ALL:
7803 case MONO_GENERIC_SHARING_CORLIB :
7804 return class->image == mono_defaults.corlib;
7805 case MONO_GENERIC_SHARING_COLLECTIONS:
7806 if (class->image != mono_defaults.corlib)
7808 while (class->nested_in)
7809 class = class->nested_in;
7810 return g_str_has_prefix (class->name_space, "System.Collections.Generic");
7812 g_assert_not_reached ();
7817 * mono_class_setup_interface_id:
7819 * Initializes MonoClass::interface_id if required.
7821 * LOCKING: Acquires the loader lock.
7824 mono_class_setup_interface_id (MonoClass *class)
7826 mono_loader_lock ();
7827 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id)
7828 class->interface_id = mono_get_unique_iid (class);
7829 mono_loader_unlock ();
7833 * mono_class_alloc_ext:
7835 * Allocate klass->ext if not already done.
7836 * LOCKING: Assumes the loader lock is held.
7839 mono_class_alloc_ext (MonoClass *klass)
7842 if (klass->generic_class) {
7843 klass->ext = g_new0 (MonoClassExt, 1);
7845 klass->ext = mono_image_alloc0 (klass->image, sizeof (MonoClassExt));
7847 class_ext_size += sizeof (MonoClassExt);
7852 * mono_class_setup_interfaces:
7854 * Initialize class->interfaces/interfaces_count.
7855 * LOCKING: Acquires the loader lock.
7858 mono_class_setup_interfaces (MonoClass *klass)
7862 if (klass->interfaces_inited)
7865 mono_loader_lock ();
7867 if (klass->interfaces_inited) {
7868 mono_loader_unlock ();
7872 if (klass->rank == 1 && klass->byval_arg.type != MONO_TYPE_ARRAY && mono_defaults.generic_ilist_class) {
7875 /* generic IList, ICollection, IEnumerable */
7876 klass->interface_count = 1;
7877 klass->interfaces = mono_image_alloc0 (klass->image, sizeof (MonoClass*) * klass->interface_count);
7879 args [0] = &klass->element_class->byval_arg;
7880 klass->interfaces [0] = mono_class_bind_generic_parameters (
7881 mono_defaults.generic_ilist_class, 1, args, FALSE);
7882 } else if (klass->generic_class) {
7883 MonoClass *gklass = klass->generic_class->container_class;
7885 klass->interface_count = gklass->interface_count;
7886 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
7887 for (i = 0; i < klass->interface_count; i++)
7888 klass->interfaces [i] = mono_class_inflate_generic_class (gklass->interfaces [i], mono_generic_class_get_context (klass->generic_class));
7891 mono_memory_barrier ();
7893 klass->interfaces_inited = TRUE;
7895 mono_loader_unlock ();