2 * class.c: Class management for the Mono runtime
5 * Miguel de Icaza (miguel@ximian.com)
7 * (C) 2001-2006 Novell, Inc.
17 #include <mono/io-layer/atomic.h>
19 #include <mono/metadata/image.h>
20 #include <mono/metadata/assembly.h>
21 #include <mono/metadata/metadata.h>
22 #include <mono/metadata/metadata-internals.h>
23 #include <mono/metadata/profiler-private.h>
24 #include <mono/metadata/tabledefs.h>
25 #include <mono/metadata/tokentype.h>
26 #include <mono/metadata/class-internals.h>
27 #include <mono/metadata/object.h>
28 #include <mono/metadata/appdomain.h>
29 #include <mono/metadata/mono-endian.h>
30 #include <mono/metadata/debug-helpers.h>
31 #include <mono/metadata/reflection.h>
32 #include <mono/metadata/exception.h>
33 #include <mono/metadata/security-manager.h>
34 #include <mono/metadata/security-core-clr.h>
35 #include <mono/metadata/attrdefs.h>
36 #include <mono/metadata/gc-internal.h>
37 #include <mono/utils/mono-counters.h>
41 gboolean mono_print_vtable = FALSE;
43 /* Function supplied by the runtime to find classes by name using information from the AOT file */
44 static MonoGetClassFromName get_class_from_name = NULL;
46 static MonoClass * mono_class_create_from_typedef (MonoImage *image, guint32 type_token);
47 static gboolean mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res);
49 void (*mono_debugger_class_init_func) (MonoClass *klass) = NULL;
50 void (*mono_debugger_class_loaded_methods_func) (MonoClass *klass) = NULL;
53 * mono_class_from_typeref:
55 * @type_token: a TypeRef token
57 * Creates the MonoClass* structure representing the type defined by
58 * the typeref token valid inside @image.
59 * Returns: the MonoClass* representing the typeref token, NULL ifcould
63 mono_class_from_typeref (MonoImage *image, guint32 type_token)
65 guint32 cols [MONO_TYPEREF_SIZE];
66 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
68 const char *name, *nspace;
72 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
74 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
75 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
77 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
78 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
79 case MONO_RESOLTION_SCOPE_MODULE:
81 g_error ("null ResolutionScope not yet handled");
82 /* a typedef in disguise */
83 return mono_class_from_name (image, nspace, name);
84 case MONO_RESOLTION_SCOPE_MODULEREF:
85 module = mono_image_load_module (image, idx);
87 return mono_class_from_name (module, nspace, name);
89 char *msg = g_strdup_printf ("%s%s%s", nspace, nspace [0] ? "." : "", name);
92 human_name = mono_stringify_assembly_name (&image->assembly->aname);
93 mono_loader_set_error_type_load (msg, human_name);
99 case MONO_RESOLTION_SCOPE_TYPEREF: {
100 MonoClass *enclosing = mono_class_from_typeref (image, MONO_TOKEN_TYPE_REF | idx);
103 if (enclosing->inited) {
104 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
105 for (tmp = enclosing->nested_classes; tmp; tmp = tmp->next) {
107 if (strcmp (res->name, name) == 0)
111 /* Don't call mono_class_init as we might've been called by it recursively */
112 int i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, 1);
114 guint32 class_nested = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, MONO_NESTED_CLASS_NESTED);
115 guint32 string_offset = mono_metadata_decode_row_col (&enclosing->image->tables [MONO_TABLE_TYPEDEF], class_nested - 1, MONO_TYPEDEF_NAME);
116 const char *nname = mono_metadata_string_heap (enclosing->image, string_offset);
118 if (strcmp (nname, name) == 0)
119 return mono_class_create_from_typedef (enclosing->image, MONO_TOKEN_TYPE_DEF | class_nested);
121 i = mono_metadata_nesting_typedef (enclosing->image, enclosing->type_token, i + 1);
124 g_warning ("TypeRef ResolutionScope not yet handled (%d) for %s.%s in image %s", idx, nspace, name, image->name);
127 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
131 if (!image->references || !image->references [idx - 1])
132 mono_assembly_load_reference (image, idx - 1);
133 g_assert (image->references [idx - 1]);
135 /* If the assembly did not load, register this as a type load exception */
136 if (image->references [idx - 1] == REFERENCE_MISSING){
137 MonoAssemblyName aname;
140 mono_assembly_get_assemblyref (image, idx - 1, &aname);
141 human_name = mono_stringify_assembly_name (&aname);
142 mono_loader_set_error_assembly_load (human_name, image->assembly->ref_only);
148 return mono_class_from_name (image->references [idx - 1]->image, nspace, name);
151 /* Copy everything mono_metadata_free_array free. */
153 mono_dup_array_type (MonoArrayType *a)
155 a = g_memdup (a, sizeof (MonoArrayType));
157 a->sizes = g_memdup (a->sizes, a->numsizes * sizeof (int));
159 a->lobounds = g_memdup (a->lobounds, a->numlobounds * sizeof (int));
163 /* Copy everything mono_metadata_free_method_signature free. */
165 mono_metadata_signature_deep_dup (MonoMethodSignature *sig)
169 sig = mono_metadata_signature_dup (sig);
171 sig->ret = mono_metadata_type_dup (NULL, sig->ret);
172 for (i = 0; i < sig->param_count; ++i)
173 sig->params [i] = mono_metadata_type_dup (NULL, sig->params [i]);
179 _mono_type_get_assembly_name (MonoClass *klass, GString *str)
181 MonoAssembly *ta = klass->image->assembly;
183 g_string_append_printf (
184 str, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
186 ta->aname.major, ta->aname.minor, ta->aname.build, ta->aname.revision,
187 ta->aname.culture && *ta->aname.culture? ta->aname.culture: "neutral",
188 ta->aname.public_key_token [0] ? (char *)ta->aname.public_key_token : "null",
189 (ta->aname.flags & ASSEMBLYREF_RETARGETABLE_FLAG) ? ", Retargetable=Yes" : "");
193 mono_type_name_check_byref (MonoType *type, GString *str)
196 g_string_append_c (str, '&');
200 mono_type_get_name_recurse (MonoType *type, GString *str, gboolean is_recursed,
201 MonoTypeNameFormat format)
205 switch (type->type) {
206 case MONO_TYPE_ARRAY: {
207 int i, rank = type->data.array->rank;
208 MonoTypeNameFormat nested_format;
210 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
211 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
213 mono_type_get_name_recurse (
214 &type->data.array->eklass->byval_arg, str, FALSE, nested_format);
215 g_string_append_c (str, '[');
217 g_string_append_c (str, '*');
218 for (i = 1; i < rank; i++)
219 g_string_append_c (str, ',');
220 g_string_append_c (str, ']');
222 mono_type_name_check_byref (type, str);
224 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
225 _mono_type_get_assembly_name (type->data.array->eklass, str);
228 case MONO_TYPE_SZARRAY: {
229 MonoTypeNameFormat nested_format;
231 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
232 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
234 mono_type_get_name_recurse (
235 &type->data.klass->byval_arg, str, FALSE, nested_format);
236 g_string_append (str, "[]");
238 mono_type_name_check_byref (type, str);
240 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
241 _mono_type_get_assembly_name (type->data.klass, str);
244 case MONO_TYPE_PTR: {
245 MonoTypeNameFormat nested_format;
247 nested_format = format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED ?
248 MONO_TYPE_NAME_FORMAT_FULL_NAME : format;
250 mono_type_get_name_recurse (
251 type->data.type, str, FALSE, nested_format);
252 g_string_append_c (str, '*');
254 mono_type_name_check_byref (type, str);
256 if (format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)
257 _mono_type_get_assembly_name (mono_class_from_mono_type (type->data.type), str);
262 g_assert (type->data.generic_param->name);
263 g_string_append (str, type->data.generic_param->name);
265 mono_type_name_check_byref (type, str);
269 klass = mono_class_from_mono_type (type);
270 if (klass->nested_in) {
271 mono_type_get_name_recurse (
272 &klass->nested_in->byval_arg, str, TRUE, format);
273 if (format == MONO_TYPE_NAME_FORMAT_IL)
274 g_string_append_c (str, '.');
276 g_string_append_c (str, '+');
277 } else if (*klass->name_space) {
278 g_string_append (str, klass->name_space);
279 g_string_append_c (str, '.');
281 if (format == MONO_TYPE_NAME_FORMAT_IL) {
282 char *s = strchr (klass->name, '`');
283 int len = s ? s - klass->name : strlen (klass->name);
285 g_string_append_len (str, klass->name, len);
287 g_string_append (str, klass->name);
290 if (klass->generic_class) {
291 MonoGenericClass *gclass = klass->generic_class;
292 MonoGenericInst *inst = gclass->context.class_inst;
293 MonoTypeNameFormat nested_format;
296 nested_format = format == MONO_TYPE_NAME_FORMAT_FULL_NAME ?
297 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED : format;
299 if (format == MONO_TYPE_NAME_FORMAT_IL)
300 g_string_append_c (str, '<');
302 g_string_append_c (str, '[');
303 for (i = 0; i < inst->type_argc; i++) {
304 MonoType *t = inst->type_argv [i];
307 g_string_append_c (str, ',');
308 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
309 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
310 g_string_append_c (str, '[');
311 mono_type_get_name_recurse (inst->type_argv [i], str, FALSE, nested_format);
312 if ((nested_format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
313 (t->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
314 g_string_append_c (str, ']');
316 if (format == MONO_TYPE_NAME_FORMAT_IL)
317 g_string_append_c (str, '>');
319 g_string_append_c (str, ']');
320 } else if (klass->generic_container &&
321 (format != MONO_TYPE_NAME_FORMAT_FULL_NAME) &&
322 (format != MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED)) {
325 if (format == MONO_TYPE_NAME_FORMAT_IL)
326 g_string_append_c (str, '<');
328 g_string_append_c (str, '[');
329 for (i = 0; i < klass->generic_container->type_argc; i++) {
331 g_string_append_c (str, ',');
332 g_string_append (str, klass->generic_container->type_params [i].name);
334 if (format == MONO_TYPE_NAME_FORMAT_IL)
335 g_string_append_c (str, '>');
337 g_string_append_c (str, ']');
340 mono_type_name_check_byref (type, str);
342 if ((format == MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED) &&
343 (type->type != MONO_TYPE_VAR) && (type->type != MONO_TYPE_MVAR))
344 _mono_type_get_assembly_name (klass, str);
350 * mono_type_get_name:
352 * @format: the format for the return string.
355 * Returns: the string representation in a number of formats:
357 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
358 * returned in the formatrequired by System.Reflection, this is the
359 * inverse of mono_reflection_parse_type ().
361 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
362 * be used by the IL assembler.
364 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
366 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
369 mono_type_get_name_full (MonoType *type, MonoTypeNameFormat format)
373 result = g_string_new ("");
375 mono_type_get_name_recurse (type, result, FALSE, format);
377 return g_string_free (result, FALSE);
381 * mono_type_get_full_name:
384 * Returns: the string representation for type as required by System.Reflection.
385 * The inverse of mono_reflection_parse_type ().
388 mono_type_get_full_name (MonoClass *class)
390 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION);
394 * mono_type_get_name:
397 * Returns: the string representation for type as it would be represented in IL code.
400 mono_type_get_name (MonoType *type)
402 return mono_type_get_name_full (type, MONO_TYPE_NAME_FORMAT_IL);
406 * mono_type_get_underlying_type:
409 * Returns: the MonoType for the underlying integer type if @type
410 * is an enum and byref is false, otherwise the type itself.
413 mono_type_get_underlying_type (MonoType *type)
415 if (type->type == MONO_TYPE_VALUETYPE && type->data.klass->enumtype && !type->byref)
416 return type->data.klass->enum_basetype;
417 if (type->type == MONO_TYPE_GENERICINST && type->data.generic_class->container_class->enumtype && !type->byref)
418 return type->data.generic_class->container_class->enum_basetype;
423 * mono_class_is_open_constructed_type:
426 * Returns TRUE if type represents a generics open constructed type
427 * (not all the type parameters required for the instantiation have
431 mono_class_is_open_constructed_type (MonoType *t)
437 case MONO_TYPE_SZARRAY:
438 return mono_class_is_open_constructed_type (&t->data.klass->byval_arg);
439 case MONO_TYPE_ARRAY:
440 return mono_class_is_open_constructed_type (&t->data.array->eklass->byval_arg);
442 return mono_class_is_open_constructed_type (t->data.type);
443 case MONO_TYPE_GENERICINST:
444 return t->data.generic_class->context.class_inst->is_open;
451 inflate_generic_type (MonoType *type, MonoGenericContext *context)
453 switch (type->type) {
454 case MONO_TYPE_MVAR: {
456 int num = type->data.generic_param->num;
457 MonoGenericInst *inst = context->method_inst;
458 if (!inst || !inst->type_argv)
460 if (num >= inst->type_argc)
461 g_error ("MVAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
464 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
465 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
466 * ->byref and ->attrs from @type are propagated to the returned type.
468 nt = mono_metadata_type_dup (NULL, inst->type_argv [num]);
469 nt->byref = type->byref;
470 nt->attrs = type->attrs;
473 case MONO_TYPE_VAR: {
475 int num = type->data.generic_param->num;
476 MonoGenericInst *inst = context->class_inst;
479 if (num >= inst->type_argc)
480 g_error ("VAR %d (%s) cannot be expanded in this context with %d instantiations", num, type->data.generic_param->name, inst->type_argc);
481 nt = mono_metadata_type_dup (NULL, inst->type_argv [num]);
482 nt->byref = type->byref;
483 nt->attrs = type->attrs;
486 case MONO_TYPE_SZARRAY: {
487 MonoClass *eclass = type->data.klass;
488 MonoType *nt, *inflated = inflate_generic_type (&eclass->byval_arg, context);
491 nt = mono_metadata_type_dup (NULL, type);
492 nt->data.klass = mono_class_from_mono_type (inflated);
493 mono_metadata_free_type (inflated);
496 case MONO_TYPE_ARRAY: {
497 MonoClass *eclass = type->data.array->eklass;
498 MonoType *nt, *inflated = inflate_generic_type (&eclass->byval_arg, context);
501 nt = mono_metadata_type_dup (NULL, type);
502 nt->data.array = g_memdup (nt->data.array, sizeof (MonoArrayType));
503 nt->data.array->eklass = mono_class_from_mono_type (inflated);
504 mono_metadata_free_type (inflated);
507 case MONO_TYPE_GENERICINST: {
508 MonoGenericClass *gclass = type->data.generic_class;
509 MonoGenericInst *inst;
511 if (!gclass->context.class_inst->is_open)
514 inst = mono_metadata_inflate_generic_inst (gclass->context.class_inst, context);
515 if (inst != gclass->context.class_inst)
516 gclass = mono_metadata_lookup_generic_class (gclass->container_class, inst, gclass->is_dynamic);
518 if (gclass == type->data.generic_class)
521 nt = mono_metadata_type_dup (NULL, type);
522 nt->data.generic_class = gclass;
525 case MONO_TYPE_CLASS:
526 case MONO_TYPE_VALUETYPE: {
527 MonoClass *klass = type->data.klass;
528 MonoGenericContainer *container = klass->generic_container;
529 MonoGenericInst *inst;
530 MonoGenericClass *gclass = NULL;
536 /* We can't use context->class_inst directly, since it can have more elements */
537 inst = mono_metadata_inflate_generic_inst (container->context.class_inst, context);
538 if (inst == container->context.class_inst)
541 gclass = mono_metadata_lookup_generic_class (klass, inst, klass->image->dynamic);
543 nt = mono_metadata_type_dup (NULL, type);
544 nt->type = MONO_TYPE_GENERICINST;
545 nt->data.generic_class = gclass;
555 mono_generic_class_get_context (MonoGenericClass *gclass)
557 return &gclass->context;
561 mono_class_get_context (MonoClass *class)
563 return class->generic_class ? mono_generic_class_get_context (class->generic_class) : NULL;
567 * mono_class_inflate_generic_type:
569 * @context: a generics context
571 * Instantiate the generic type @type, using the generics context @context.
573 * Returns: the instantiated type. The returned MonoType is allocated on the heap and is
574 * owned by the caller.
577 mono_class_inflate_generic_type (MonoType *type, MonoGenericContext *context)
579 MonoType *inflated = inflate_generic_type (type, context);
582 return mono_metadata_type_dup (NULL, type);
584 mono_stats.inflated_type_count++;
588 static MonoGenericContext
589 inflate_generic_context (MonoGenericContext *context, MonoGenericContext *inflate_with)
591 MonoGenericInst *class_inst = NULL;
592 MonoGenericInst *method_inst = NULL;
593 MonoGenericContext res;
595 if (context->class_inst)
596 class_inst = mono_metadata_inflate_generic_inst (context->class_inst, inflate_with);
598 if (context->method_inst)
599 method_inst = mono_metadata_inflate_generic_inst (context->method_inst, inflate_with);
601 res.class_inst = class_inst;
602 res.method_inst = method_inst;
608 * mono_class_inflate_generic_method:
609 * @method: a generic method
610 * @context: a generics context
612 * Instantiate the generic method @method using the generics context @context.
614 * Returns: the new instantiated method
617 mono_class_inflate_generic_method (MonoMethod *method, MonoGenericContext *context)
619 return mono_class_inflate_generic_method_full (method, NULL, context);
623 * mono_class_inflate_generic_method:
625 * Instantiate method @method with the generic context @context.
626 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
627 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
630 mono_class_inflate_generic_method_full (MonoMethod *method, MonoClass *klass_hint, MonoGenericContext *context)
633 MonoMethodInflated *iresult, *cached;
634 MonoMethodSignature *sig;
635 MonoGenericContext tmp_context;
636 gboolean is_mb_open = FALSE;
638 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
639 while (method->is_inflated) {
640 MonoGenericContext *method_context = mono_method_get_context (method);
641 MonoMethodInflated *imethod = (MonoMethodInflated *) method;
643 tmp_context = inflate_generic_context (method_context, context);
644 context = &tmp_context;
646 if (mono_metadata_generic_context_equal (method_context, context))
649 method = imethod->declaring;
652 if (!method->generic_container && !method->klass->generic_container)
656 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
657 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
658 * This is opposite to the way non-SRE MethodInfos behave.
660 * FIXME: express this better, somehow!
662 is_mb_open = method->generic_container &&
663 method->klass->image->dynamic && !method->klass->wastypebuilder &&
664 context->method_inst == method->generic_container->context.method_inst;
666 mono_stats.inflated_method_count++;
667 iresult = g_new0 (MonoMethodInflated, 1);
668 iresult->context = *context;
669 iresult->declaring = method;
670 iresult->is_mb_open = is_mb_open;
672 if (!context->method_inst && method->generic_container)
673 iresult->context.method_inst = method->generic_container->context.method_inst;
676 cached = mono_method_inflated_lookup (iresult, FALSE);
678 mono_loader_unlock ();
680 return (MonoMethod*)cached;
683 sig = mono_method_signature (method);
685 memcpy (&iresult->method.pinvoke, method, sizeof (MonoMethodPInvoke));
687 memcpy (&iresult->method.normal, method, sizeof (MonoMethodNormal));
688 iresult->method.normal.header = NULL;
691 result = (MonoMethod *) iresult;
692 result->is_inflated = 1;
693 result->signature = NULL;
695 if (context->method_inst)
696 result->generic_container = NULL;
698 /* Due to the memcpy above, !context->method_inst => result->generic_container == method->generic_container */
700 if (!klass_hint || !klass_hint->generic_class ||
701 klass_hint->generic_class->container_class != method->klass ||
702 klass_hint->generic_class->context.class_inst != context->class_inst)
705 if (method->klass->generic_container)
706 result->klass = klass_hint;
708 if (!result->klass) {
709 MonoType *inflated = inflate_generic_type (&method->klass->byval_arg, context);
710 result->klass = inflated ? mono_class_from_mono_type (inflated) : method->klass;
712 mono_metadata_free_type (inflated);
715 mono_method_inflated_lookup (iresult, TRUE);
716 mono_loader_unlock ();
721 * mono_get_inflated_method:
723 * Obsolete. We keep it around since it's mentioned in the public API.
726 mono_get_inflated_method (MonoMethod *method)
732 mono_method_get_context (MonoMethod *method)
734 MonoMethodInflated *imethod;
735 if (!method->is_inflated)
737 imethod = (MonoMethodInflated *) method;
738 return &imethod->context;
742 * mono_class_find_enum_basetype:
743 * @class: The enum class
745 * Determine the basetype of an enum by iterating through its fields. We do this
746 * in a separate function since it is cheaper than calling mono_class_setup_fields.
749 mono_class_find_enum_basetype (MonoClass *class)
751 MonoImage *m = class->image;
752 const int top = class->field.count;
755 g_assert (class->enumtype);
758 * Fetch all the field information.
760 for (i = 0; i < top; i++){
762 guint32 cols [MONO_FIELD_SIZE];
763 int idx = class->field.first + i;
764 MonoGenericContainer *container = NULL;
767 /* class->field.first and idx points into the fieldptr table */
768 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
769 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
770 mono_metadata_decode_value (sig, &sig);
771 /* FIELD signature == 0x06 */
772 g_assert (*sig == 0x06);
773 if (class->generic_container)
774 container = class->generic_container;
775 else if (class->generic_class) {
776 MonoClass *gklass = class->generic_class->container_class;
778 container = gklass->generic_container;
779 g_assert (container);
781 ftype = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
784 if (class->generic_class) {
785 ftype = mono_class_inflate_generic_type (ftype, mono_class_get_context (class));
786 ftype->attrs = cols [MONO_FIELD_FLAGS];
789 if (class->enumtype && !(cols [MONO_FIELD_FLAGS] & FIELD_ATTRIBUTE_STATIC))
797 * mono_class_setup_fields:
798 * @class: The class to initialize
800 * Initializes the class->fields.
801 * LOCKING: Assumes the loader lock is held.
804 mono_class_setup_fields (MonoClass *class)
806 MonoImage *m = class->image;
807 int top = class->field.count;
808 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
809 int i, blittable = TRUE;
810 guint32 real_size = 0;
811 guint32 packing_size = 0;
812 gboolean explicit_size;
813 MonoClassField *field;
814 MonoGenericContainer *container = NULL;
815 MonoClass *gklass = NULL;
817 if (class->size_inited)
820 if (class->generic_class) {
821 MonoClass *gklass = class->generic_class->container_class;
822 mono_class_setup_fields (gklass);
823 top = gklass->field.count;
824 class->field.count = gklass->field.count;
827 class->instance_size = 0;
829 class->sizes.class_size = 0;
832 /* For generic instances, class->parent might not have been initialized */
833 mono_class_init (class->parent);
834 if (!class->parent->size_inited)
835 mono_class_setup_fields (class->parent);
836 class->instance_size += class->parent->instance_size;
837 class->min_align = class->parent->min_align;
838 /* we use |= since it may have been set already */
839 class->has_references |= class->parent->has_references;
840 blittable = class->parent->blittable;
842 class->instance_size = sizeof (MonoObject);
843 class->min_align = 1;
846 /* Get the real size */
847 explicit_size = mono_metadata_packing_from_typedef (class->image, class->type_token, &packing_size, &real_size);
850 g_assert ((packing_size & 0xfffffff0) == 0);
851 class->packing_size = packing_size;
852 real_size += class->instance_size;
856 if (explicit_size && real_size) {
857 class->instance_size = MAX (real_size, class->instance_size);
859 class->size_inited = 1;
860 class->blittable = blittable;
864 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT)
867 /* Prevent infinite loops if the class references itself */
868 class->size_inited = 1;
870 class->fields = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoClassField) * top);
872 if (class->generic_container) {
873 container = class->generic_container;
874 } else if (class->generic_class) {
875 gklass = class->generic_class->container_class;
876 container = gklass->generic_container;
877 g_assert (container);
879 mono_class_setup_fields (gklass);
883 * Fetch all the field information.
885 for (i = 0; i < top; i++){
886 int idx = class->field.first + i;
887 field = &class->fields [i];
889 field->parent = class;
891 if (class->generic_class) {
892 MonoClassField *gfield = &gklass->fields [i];
893 MonoInflatedField *ifield = g_new0 (MonoInflatedField, 1);
895 ifield->generic_type = gfield->type;
896 field->name = gfield->name;
897 field->generic_info = ifield;
898 field->type = mono_class_inflate_generic_type (gfield->type, mono_class_get_context (class));
899 field->type->attrs = gfield->type->attrs;
900 if (mono_field_is_deleted (field))
902 field->offset = gfield->offset;
903 field->data = gfield->data;
907 guint32 cols [MONO_FIELD_SIZE];
909 /* class->field.first and idx points into the fieldptr table */
910 mono_metadata_decode_table_row (m, MONO_TABLE_FIELD, idx, cols, MONO_FIELD_SIZE);
911 /* The name is needed for fieldrefs */
912 field->name = mono_metadata_string_heap (m, cols [MONO_FIELD_NAME]);
913 sig = mono_metadata_blob_heap (m, cols [MONO_FIELD_SIGNATURE]);
914 mono_metadata_decode_value (sig, &sig);
915 /* FIELD signature == 0x06 */
916 g_assert (*sig == 0x06);
917 field->type = mono_metadata_parse_type_full (m, container, MONO_PARSE_FIELD, cols [MONO_FIELD_FLAGS], sig + 1, &sig);
919 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
922 if (mono_field_is_deleted (field))
924 if (layout == TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
926 mono_metadata_field_info (m, idx, &offset, NULL, NULL);
927 field->offset = offset;
928 if (field->offset == (guint32)-1 && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC))
929 g_warning ("%s not initialized correctly (missing field layout info for %s)",
930 class->name, field->name);
933 if (field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA) {
934 mono_metadata_field_info (m, idx, NULL, &rva, NULL);
936 g_warning ("field %s in %s should have RVA data, but hasn't", field->name, class->name);
937 field->data = mono_image_rva_map (class->image, rva);
941 /* Only do these checks if we still think this type is blittable */
942 if (blittable && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
943 if (field->type->byref || MONO_TYPE_IS_REFERENCE (field->type)) {
946 MonoClass *field_class = mono_class_from_mono_type (field->type);
947 if (!field_class || !field_class->blittable)
952 if (class->enumtype && !(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
953 class->enum_basetype = field->type;
954 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
955 blittable = class->element_class->blittable;
958 /* The def_value of fields is compute lazily during vtable creation */
961 if (class == mono_defaults.string_class)
964 class->blittable = blittable;
966 if (class->enumtype && !class->enum_basetype) {
967 if (!((strcmp (class->name, "Enum") == 0) && (strcmp (class->name_space, "System") == 0)))
970 if (explicit_size && real_size) {
971 class->instance_size = MAX (real_size, class->instance_size);
974 if (class->exception_type)
976 mono_class_layout_fields (class);
980 * mono_class_setup_fields_locking:
981 * @class: The class to initialize
983 * Initializes the class->fields array of fields.
984 * Aquires the loader lock.
987 mono_class_setup_fields_locking (MonoClass *class)
990 mono_class_setup_fields (class);
991 mono_loader_unlock ();
995 * mono_class_has_references:
997 * Returns whenever @klass->has_references is set, initializing it if needed.
998 * Aquires the loader lock.
1001 mono_class_has_references (MonoClass *klass)
1003 if (klass->init_pending) {
1004 /* Be conservative */
1007 mono_class_init (klass);
1009 return klass->has_references;
1013 /* useful until we keep track of gc-references in corlib etc. */
1015 #define IS_GC_REFERENCE(t) FALSE
1017 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1021 * mono_type_get_basic_type_from_generic:
1024 * Returns a closed type corresponding to the possibly open type
1028 mono_type_get_basic_type_from_generic (MonoType *type)
1030 /* When we do generic sharing we let type variables stand for reference types. */
1031 if (!type->byref && (type->type == MONO_TYPE_VAR || type->type == MONO_TYPE_MVAR))
1032 return &mono_defaults.object_class->byval_arg;
1037 * mono_class_layout_fields:
1040 * Compute the placement of fields inside an object or struct, according to
1041 * the layout rules and set the following fields in @class:
1042 * - has_references (if the class contains instance references firled or structs that contain references)
1043 * - has_static_refs (same, but for static fields)
1044 * - instance_size (size of the object in memory)
1045 * - class_size (size needed for the static fields)
1046 * - size_inited (flag set when the instance_size is set)
1048 * LOCKING: this is supposed to be called with the loader lock held.
1051 mono_class_layout_fields (MonoClass *class)
1054 const int top = class->field.count;
1055 guint32 layout = class->flags & TYPE_ATTRIBUTE_LAYOUT_MASK;
1056 guint32 pass, passes, real_size;
1057 gboolean gc_aware_layout = FALSE;
1058 MonoClassField *field;
1061 * When we do generic sharing we need to have layout
1062 * information for open generic classes (either with a generic
1063 * context containing type variables or with a generic
1064 * container), so we don't return in that case anymore.
1068 * Enable GC aware auto layout: in this mode, reference
1069 * fields are grouped together inside objects, increasing collector
1071 * Requires that all classes whose layout is known to native code be annotated
1072 * with [StructLayout (LayoutKind.Sequential)]
1073 * Value types have gc_aware_layout disabled by default, as per
1074 * what the default is for other runtimes.
1076 /* corlib is missing [StructLayout] directives in many places */
1077 if (layout == TYPE_ATTRIBUTE_AUTO_LAYOUT) {
1078 if (class->image != mono_defaults.corlib &&
1079 class->byval_arg.type != MONO_TYPE_VALUETYPE)
1080 gc_aware_layout = TRUE;
1081 /* from System.dll, used in metadata/process.h */
1082 if (strcmp (class->name, "ProcessStartInfo") == 0)
1083 gc_aware_layout = FALSE;
1086 /* Compute klass->has_references */
1088 * Process non-static fields first, since static fields might recursively
1089 * refer to the class itself.
1091 for (i = 0; i < top; i++) {
1094 field = &class->fields [i];
1096 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
1097 ftype = mono_type_get_underlying_type (field->type);
1098 ftype = mono_type_get_basic_type_from_generic (ftype);
1099 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1100 class->has_references = TRUE;
1104 for (i = 0; i < top; i++) {
1107 field = &class->fields [i];
1109 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC) {
1110 ftype = mono_type_get_underlying_type (field->type);
1111 ftype = mono_type_get_basic_type_from_generic (ftype);
1112 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1113 class->has_static_refs = TRUE;
1117 for (i = 0; i < top; i++) {
1120 field = &class->fields [i];
1122 ftype = mono_type_get_underlying_type (field->type);
1123 ftype = mono_type_get_basic_type_from_generic (ftype);
1124 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1125 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1126 class->has_static_refs = TRUE;
1128 class->has_references = TRUE;
1133 * Compute field layout and total size (not considering static fields)
1137 case TYPE_ATTRIBUTE_AUTO_LAYOUT:
1138 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT:
1140 if (gc_aware_layout)
1145 if (layout != TYPE_ATTRIBUTE_AUTO_LAYOUT)
1149 real_size = class->parent->instance_size;
1151 real_size = sizeof (MonoObject);
1153 for (pass = 0; pass < passes; ++pass) {
1154 for (i = 0; i < top; i++){
1159 field = &class->fields [i];
1161 if (mono_field_is_deleted (field))
1163 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1166 ftype = mono_type_get_underlying_type (field->type);
1167 ftype = mono_type_get_basic_type_from_generic (ftype);
1168 if (gc_aware_layout) {
1169 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1178 if ((top == 1) && (class->instance_size == sizeof (MonoObject)) &&
1179 (strcmp (field->name, "$PRIVATE$") == 0)) {
1180 /* This field is a hack inserted by MCS to empty structures */
1184 size = mono_type_size (field->type, &align);
1186 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1187 align = class->packing_size ? MIN (class->packing_size, align): align;
1188 /* if the field has managed references, we need to force-align it
1191 if (MONO_TYPE_IS_REFERENCE (ftype) || IS_GC_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype)))))
1192 align = MAX (align, sizeof (gpointer));
1194 class->min_align = MAX (align, class->min_align);
1195 field->offset = real_size;
1196 field->offset += align - 1;
1197 field->offset &= ~(align - 1);
1198 real_size = field->offset + size;
1201 class->instance_size = MAX (real_size, class->instance_size);
1203 if (class->instance_size & (class->min_align - 1)) {
1204 class->instance_size += class->min_align - 1;
1205 class->instance_size &= ~(class->min_align - 1);
1209 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT:
1211 for (i = 0; i < top; i++) {
1216 field = &class->fields [i];
1219 * There must be info about all the fields in a type if it
1220 * uses explicit layout.
1223 if (mono_field_is_deleted (field))
1225 if (field->type->attrs & FIELD_ATTRIBUTE_STATIC)
1228 size = mono_type_size (field->type, &align);
1229 class->min_align = MAX (align, class->min_align);
1232 * When we get here, field->offset is already set by the
1233 * loader (for either runtime fields or fields loaded from metadata).
1234 * The offset is from the start of the object: this works for both
1235 * classes and valuetypes.
1237 field->offset += sizeof (MonoObject);
1238 ftype = mono_type_get_underlying_type (field->type);
1239 ftype = mono_type_get_basic_type_from_generic (ftype);
1240 if (MONO_TYPE_IS_REFERENCE (ftype) || ((MONO_TYPE_ISSTRUCT (ftype) && mono_class_has_references (mono_class_from_mono_type (ftype))))) {
1241 if (field->offset % sizeof (gpointer)) {
1242 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
1249 real_size = MAX (real_size, size + field->offset);
1251 class->instance_size = MAX (real_size, class->instance_size);
1255 if (layout != TYPE_ATTRIBUTE_EXPLICIT_LAYOUT) {
1257 * For small structs, set min_align to at least the struct size to improve
1258 * performance, and since the JIT memset/memcpy code assumes this and generates
1259 * unaligned accesses otherwise. See #78990 for a testcase.
1261 if (class->instance_size <= sizeof (MonoObject) + sizeof (gpointer))
1262 class->min_align = MAX (class->min_align, class->instance_size - sizeof (MonoObject));
1265 class->size_inited = 1;
1268 * Compute static field layout and size
1270 for (i = 0; i < top; i++){
1274 field = &class->fields [i];
1276 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC) || field->type->attrs & FIELD_ATTRIBUTE_LITERAL)
1278 if (mono_field_is_deleted (field))
1281 size = mono_type_size (field->type, &align);
1282 field->offset = class->sizes.class_size;
1283 field->offset += align - 1;
1284 field->offset &= ~(align - 1);
1285 class->sizes.class_size = field->offset + size;
1290 * mono_class_setup_methods:
1293 * Initializes the 'methods' array in the klass.
1294 * Calling this method should be avoided if possible since it allocates a lot
1295 * of long-living MonoMethod structures.
1296 * Methods belonging to an interface are assigned a sequential slot starting
1300 mono_class_setup_methods (MonoClass *class)
1303 MonoMethod **methods;
1308 mono_loader_lock ();
1310 if (class->methods) {
1311 mono_loader_unlock ();
1315 if (class->generic_class) {
1316 MonoClass *gklass = class->generic_class->container_class;
1318 mono_class_init (gklass);
1319 mono_class_setup_methods (gklass);
1321 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1322 class->method.count = gklass->method.count;
1323 methods = g_new0 (MonoMethod *, class->method.count + 1);
1325 for (i = 0; i < class->method.count; i++) {
1326 methods [i] = mono_class_inflate_generic_method_full (
1327 gklass->methods [i], class, mono_class_get_context (class));
1330 methods = mono_mempool_alloc (class->image->mempool, sizeof (MonoMethod*) * class->method.count);
1331 for (i = 0; i < class->method.count; ++i) {
1332 int idx = mono_metadata_translate_token_index (class->image, MONO_TABLE_METHOD, class->method.first + i + 1);
1333 methods [i] = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | idx, class);
1337 if (MONO_CLASS_IS_INTERFACE (class))
1338 for (i = 0; i < class->method.count; ++i)
1339 methods [i]->slot = i;
1341 /* Leave this assignment as the last op in this function */
1342 class->methods = methods;
1344 if (mono_debugger_class_loaded_methods_func)
1345 mono_debugger_class_loaded_methods_func (class);
1347 mono_loader_unlock ();
1352 mono_class_setup_properties (MonoClass *class)
1354 guint startm, endm, i, j;
1355 guint32 cols [MONO_PROPERTY_SIZE];
1356 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1357 MonoProperty *properties;
1360 if (class->properties)
1363 mono_loader_lock ();
1365 if (class->properties) {
1366 mono_loader_unlock ();
1370 if (class->generic_class) {
1371 MonoClass *gklass = class->generic_class->container_class;
1373 class->property = gklass->property;
1375 mono_class_init (gklass);
1376 mono_class_setup_properties (gklass);
1378 properties = g_new0 (MonoProperty, class->property.count + 1);
1380 for (i = 0; i < class->property.count; i++) {
1381 MonoProperty *prop = &properties [i];
1383 *prop = gklass->properties [i];
1386 prop->get = mono_class_inflate_generic_method_full (
1387 prop->get, class, mono_class_get_context (class));
1389 prop->set = mono_class_inflate_generic_method_full (
1390 prop->set, class, mono_class_get_context (class));
1392 prop->parent = class;
1395 class->property.first = mono_metadata_properties_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1396 class->property.count = last - class->property.first;
1398 if (class->property.count)
1399 mono_class_setup_methods (class);
1401 properties = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoProperty) * class->property.count);
1402 for (i = class->property.first; i < last; ++i) {
1403 mono_metadata_decode_table_row (class->image, MONO_TABLE_PROPERTY, i, cols, MONO_PROPERTY_SIZE);
1404 properties [i - class->property.first].parent = class;
1405 properties [i - class->property.first].attrs = cols [MONO_PROPERTY_FLAGS];
1406 properties [i - class->property.first].name = mono_metadata_string_heap (class->image, cols [MONO_PROPERTY_NAME]);
1408 startm = mono_metadata_methods_from_property (class->image, i, &endm);
1409 for (j = startm; j < endm; ++j) {
1412 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1414 if (class->image->uncompressed_metadata)
1415 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1416 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1418 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1420 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1421 case METHOD_SEMANTIC_SETTER:
1422 properties [i - class->property.first].set = method;
1424 case METHOD_SEMANTIC_GETTER:
1425 properties [i - class->property.first].get = method;
1434 /* Leave this assignment as the last op in the function */
1435 class->properties = properties;
1437 mono_loader_unlock ();
1441 inflate_method_listz (MonoMethod **methods, MonoClass *class, MonoGenericContext *context)
1443 MonoMethod **om, **retval;
1446 for (om = methods, count = 0; *om; ++om, ++count)
1449 retval = g_new0 (MonoMethod*, count + 1);
1451 for (om = methods, count = 0; *om; ++om, ++count)
1452 retval [count] = mono_class_inflate_generic_method_full (*om, class, context);
1458 mono_class_setup_events (MonoClass *class)
1460 guint startm, endm, i, j;
1461 guint32 cols [MONO_EVENT_SIZE];
1462 MonoTableInfo *msemt = &class->image->tables [MONO_TABLE_METHODSEMANTICS];
1469 mono_loader_lock ();
1471 if (class->events) {
1472 mono_loader_unlock ();
1476 if (class->generic_class) {
1477 MonoClass *gklass = class->generic_class->container_class;
1478 MonoGenericContext *context;
1480 mono_class_setup_events (gklass);
1481 class->event = gklass->event;
1483 class->events = g_new0 (MonoEvent, class->event.count);
1485 if (class->event.count)
1486 context = mono_class_get_context (class);
1488 for (i = 0; i < class->event.count; i++) {
1489 MonoEvent *event = &class->events [i];
1490 MonoEvent *gevent = &gklass->events [i];
1492 event->parent = class;
1493 event->name = gevent->name;
1494 event->add = gevent->add ? mono_class_inflate_generic_method_full (gevent->add, class, context) : NULL;
1495 event->remove = gevent->remove ? mono_class_inflate_generic_method_full (gevent->remove, class, context) : NULL;
1496 event->raise = gevent->raise ? mono_class_inflate_generic_method_full (gevent->raise, class, context) : NULL;
1497 event->other = gevent->other ? inflate_method_listz (gevent->other, class, context) : NULL;
1498 event->attrs = gevent->attrs;
1501 mono_loader_unlock ();
1505 class->event.first = mono_metadata_events_from_typedef (class->image, mono_metadata_token_index (class->type_token) - 1, &last);
1506 class->event.count = last - class->event.first;
1508 if (class->event.count)
1509 mono_class_setup_methods (class);
1511 events = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoEvent) * class->event.count);
1512 for (i = class->event.first; i < last; ++i) {
1513 MonoEvent *event = &events [i - class->event.first];
1515 mono_metadata_decode_table_row (class->image, MONO_TABLE_EVENT, i, cols, MONO_EVENT_SIZE);
1516 event->parent = class;
1517 event->attrs = cols [MONO_EVENT_FLAGS];
1518 event->name = mono_metadata_string_heap (class->image, cols [MONO_EVENT_NAME]);
1520 startm = mono_metadata_methods_from_event (class->image, i, &endm);
1521 for (j = startm; j < endm; ++j) {
1524 mono_metadata_decode_row (msemt, j, cols, MONO_METHOD_SEMA_SIZE);
1526 if (class->image->uncompressed_metadata)
1527 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
1528 method = mono_get_method (class->image, MONO_TOKEN_METHOD_DEF | cols [MONO_METHOD_SEMA_METHOD], class);
1530 method = class->methods [cols [MONO_METHOD_SEMA_METHOD] - 1 - class->method.first];
1532 switch (cols [MONO_METHOD_SEMA_SEMANTICS]) {
1533 case METHOD_SEMANTIC_ADD_ON:
1534 event->add = method;
1536 case METHOD_SEMANTIC_REMOVE_ON:
1537 event->remove = method;
1539 case METHOD_SEMANTIC_FIRE:
1540 event->raise = method;
1542 case METHOD_SEMANTIC_OTHER: {
1545 if (event->other == NULL) {
1546 event->other = g_new0 (MonoMethod*, 2);
1548 while (event->other [n])
1550 event->other = g_realloc (event->other, (n + 2) * sizeof (MonoMethod*));
1552 event->other [n] = method;
1553 /* NULL terminated */
1554 event->other [n + 1] = NULL;
1562 /* Leave this assignment as the last op in the function */
1563 class->events = events;
1565 mono_loader_unlock ();
1569 * Global pool of interface IDs, represented as a bitset.
1570 * LOCKING: this is supposed to be accessed with the loader lock held.
1572 static MonoBitSet *global_interface_bitset = NULL;
1575 * mono_unload_interface_ids:
1576 * @bitset: bit set of interface IDs
1578 * When an image is unloaded, the interface IDs associated with
1579 * the image are put back in the global pool of IDs so the numbers
1583 mono_unload_interface_ids (MonoBitSet *bitset)
1585 mono_loader_lock ();
1586 mono_bitset_sub (global_interface_bitset, bitset);
1587 mono_loader_unlock ();
1591 * mono_get_unique_iid:
1594 * Assign a unique integer ID to the interface represented by @class.
1595 * The ID will positive and as small as possible.
1596 * LOCKING: this is supposed to be called with the loader lock held.
1597 * Returns: the new ID.
1600 mono_get_unique_iid (MonoClass *class)
1604 g_assert (MONO_CLASS_IS_INTERFACE (class));
1606 if (!global_interface_bitset) {
1607 global_interface_bitset = mono_bitset_new (128, 0);
1610 iid = mono_bitset_find_first_unset (global_interface_bitset, -1);
1612 int old_size = mono_bitset_size (global_interface_bitset);
1613 MonoBitSet *new_set = mono_bitset_clone (global_interface_bitset, old_size * 2);
1614 mono_bitset_free (global_interface_bitset);
1615 global_interface_bitset = new_set;
1618 mono_bitset_set (global_interface_bitset, iid);
1619 /* set the bit also in the per-image set */
1620 if (class->image->interface_bitset) {
1621 if (iid >= mono_bitset_size (class->image->interface_bitset)) {
1622 MonoBitSet *new_set = mono_bitset_clone (class->image->interface_bitset, iid + 1);
1623 mono_bitset_free (class->image->interface_bitset);
1624 class->image->interface_bitset = new_set;
1627 class->image->interface_bitset = mono_bitset_new (iid + 1, 0);
1629 mono_bitset_set (class->image->interface_bitset, iid);
1631 if (mono_print_vtable) {
1633 char *type_name = mono_type_full_name (&class->byval_arg);
1634 if (class->generic_class && !class->generic_class->context.class_inst->is_open) {
1635 generic_id = class->generic_class->context.class_inst->id;
1636 g_assert (generic_id != 0);
1640 printf ("Interface: assigned id %d to %s|%s|%d\n", iid, class->image->name, type_name, generic_id);
1644 g_assert (iid <= 65535);
1649 collect_implemented_interfaces_aux (MonoClass *klass, GPtrArray **res)
1654 for (i = 0; i < klass->interface_count; i++) {
1655 ic = klass->interfaces [i];
1658 *res = g_ptr_array_new ();
1659 g_ptr_array_add (*res, ic);
1660 mono_class_init (ic);
1662 collect_implemented_interfaces_aux (ic, res);
1667 mono_class_get_implemented_interfaces (MonoClass *klass)
1669 GPtrArray *res = NULL;
1671 collect_implemented_interfaces_aux (klass, &res);
1675 typedef struct _IOffsetInfo IOffsetInfo;
1676 struct _IOffsetInfo {
1680 int data [MONO_ZERO_LEN_ARRAY];
1683 static IOffsetInfo *cached_offset_info = NULL;
1684 static int next_offset_info_size = 128;
1687 cache_interface_offsets (int max_iid, int *data)
1689 IOffsetInfo *cached_info;
1692 for (cached_info = cached_offset_info; cached_info; cached_info = cached_info->next) {
1693 cached = cached_info->data;
1694 while (cached < cached_info->data + cached_info->size && *cached) {
1695 if (*cached == max_iid) {
1696 int i, matched = TRUE;
1698 for (i = 0; i < max_iid; ++i) {
1699 if (cached [i] != data [i]) {
1708 cached += *cached + 1;
1712 /* find a free slot */
1713 for (cached_info = cached_offset_info; cached_info; cached_info = cached_info->next) {
1714 if (cached_info->size - cached_info->next_free >= max_iid + 1) {
1715 cached = &cached_info->data [cached_info->next_free];
1716 *cached++ = max_iid;
1717 memcpy (cached, data, max_iid * sizeof (int));
1718 cached_info->next_free += max_iid + 1;
1722 /* allocate a new chunk */
1723 if (max_iid + 1 < next_offset_info_size) {
1724 new_size = next_offset_info_size;
1725 if (next_offset_info_size < 4096)
1726 next_offset_info_size += next_offset_info_size >> 2;
1728 new_size = max_iid + 1;
1730 cached_info = g_malloc0 (sizeof (IOffsetInfo) + sizeof (int) * new_size);
1731 cached_info->size = new_size;
1732 /*g_print ("allocated %d offset entries at %p (total: %d)\n", new_size, cached_info->data, offset_info_total_size);*/
1733 cached = &cached_info->data [0];
1734 *cached++ = max_iid;
1735 memcpy (cached, data, max_iid * sizeof (int));
1736 cached_info->next_free += max_iid + 1;
1737 cached_info->next = cached_offset_info;
1738 cached_offset_info = cached_info;
1743 compare_interface_ids (const void *p_key, const void *p_element) {
1744 const MonoClass *key = p_key;
1745 const MonoClass *element = *(MonoClass**) p_element;
1747 return (key->interface_id - element->interface_id);
1751 mono_class_interface_offset (MonoClass *klass, MonoClass *itf) {
1752 MonoClass **result = bsearch (
1754 klass->interfaces_packed,
1755 klass->interface_offsets_count,
1756 sizeof (MonoClass *),
1757 compare_interface_ids);
1759 return klass->interface_offsets_packed [result - (klass->interfaces_packed)];
1766 print_implemented_interfaces (MonoClass *klass) {
1767 GPtrArray *ifaces = NULL;
1769 int ancestor_level = 0;
1771 printf ("Packed interface table for class %s has size %d\n", klass->name, klass->interface_offsets_count);
1772 for (i = 0; i < klass->interface_offsets_count; i++)
1773 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
1774 klass->interfaces_packed [i]->interface_id,
1775 klass->interface_offsets_packed [i],
1776 klass->interfaces_packed [i]->method.count,
1777 klass->interfaces_packed [i]->name_space,
1778 klass->interfaces_packed [i]->name );
1779 printf ("Interface flags: ");
1780 for (i = 0; i <= klass->max_interface_id; i++)
1781 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, i))
1782 printf ("(%d,T)", i);
1784 printf ("(%d,F)", i);
1786 printf ("Dump interface flags:");
1787 for (i = 0; i < ((((klass->max_interface_id + 1) >> 3)) + (((klass->max_interface_id + 1) & 7)? 1 :0)); i++)
1788 printf (" %02X", klass->interface_bitmap [i]);
1790 while (klass != NULL) {
1791 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level, klass->name);
1792 ifaces = mono_class_get_implemented_interfaces (klass);
1794 for (i = 0; i < ifaces->len; i++) {
1795 MonoClass *ic = g_ptr_array_index (ifaces, i);
1796 printf (" [UIID %d] interface %s\n", ic->interface_id, ic->name);
1797 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i,
1799 mono_class_interface_offset (klass, ic),
1804 g_ptr_array_free (ifaces, TRUE);
1807 klass = klass->parent;
1811 /* this won't be needed once bug #325495 is completely fixed
1812 * though we'll need something similar to know which interfaces to allow
1813 * in arrays when they'll be lazyly created
1816 get_implicit_generic_array_interfaces (MonoClass *class, int *num, int *is_enumerator)
1818 MonoClass *eclass = class->element_class;
1819 static MonoClass* generic_icollection_class = NULL;
1820 static MonoClass* generic_ienumerable_class = NULL;
1821 static MonoClass* generic_ienumerator_class = NULL;
1822 MonoClass *fclass = NULL;
1823 MonoClass **interfaces = NULL;
1824 int i, interface_count, real_count;
1826 gboolean internal_enumerator;
1827 gboolean eclass_is_valuetype;
1829 if (!mono_defaults.generic_ilist_class) {
1833 internal_enumerator = FALSE;
1834 eclass_is_valuetype = FALSE;
1835 if (class->byval_arg.type != MONO_TYPE_SZARRAY) {
1836 if (class->generic_class && class->nested_in == mono_defaults.array_class && strcmp (class->name, "InternalEnumerator`1") == 0) {
1838 * For a Enumerator<T[]> we need to get the list of interfaces for T.
1840 eclass = mono_class_from_mono_type (class->generic_class->context.class_inst->type_argv [0]);
1841 eclass = eclass->element_class;
1842 internal_enumerator = TRUE;
1843 *is_enumerator = TRUE;
1851 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
1852 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
1854 all_interfaces = eclass->rank && eclass->element_class->rank? FALSE: TRUE;
1856 if (!generic_icollection_class) {
1857 generic_icollection_class = mono_class_from_name (mono_defaults.corlib,
1858 "System.Collections.Generic", "ICollection`1");
1859 generic_ienumerable_class = mono_class_from_name (mono_defaults.corlib,
1860 "System.Collections.Generic", "IEnumerable`1");
1861 generic_ienumerator_class = mono_class_from_name (mono_defaults.corlib,
1862 "System.Collections.Generic", "IEnumerator`1");
1866 * Arrays in 2.0 need to implement a number of generic interfaces
1867 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
1868 * on the element class). We collect the types needed to build the
1869 * instantiations in interfaces at intervals of 3, because 3 are
1870 * the generic interfaces needed to implement.
1872 if (eclass->valuetype) {
1873 if (eclass == mono_defaults.int16_class)
1874 fclass = mono_defaults.uint16_class;
1875 else if (eclass == mono_defaults.uint16_class)
1876 fclass = mono_defaults.int16_class;
1877 else if (eclass == mono_defaults.int32_class)
1878 fclass = mono_defaults.uint32_class;
1879 else if (eclass == mono_defaults.uint32_class)
1880 fclass = mono_defaults.int32_class;
1881 else if (eclass == mono_defaults.int64_class)
1882 fclass = mono_defaults.uint64_class;
1883 else if (eclass == mono_defaults.uint64_class)
1884 fclass = mono_defaults.int64_class;
1885 else if (eclass == mono_defaults.byte_class)
1886 fclass = mono_defaults.sbyte_class;
1887 else if (eclass == mono_defaults.sbyte_class)
1888 fclass = mono_defaults.byte_class;
1890 /* No additional interfaces for other value types */
1895 /* IList, ICollection, IEnumerable */
1896 real_count = interface_count = 3;
1897 interfaces = g_malloc0 (sizeof (MonoClass*) * interface_count);
1898 interfaces [0] = fclass;
1899 eclass_is_valuetype = TRUE;
1902 int idepth = eclass->idepth;
1903 if (!internal_enumerator)
1905 interface_count = all_interfaces? eclass->interface_offsets_count: eclass->interface_count;
1906 /* we add object for interfaces and the supertypes for the other
1907 * types. The last of the supertypes is the element class itself which we
1908 * already created the explicit interfaces for (so we include it for IEnumerator
1909 * and exclude it for arrays).
1911 if (MONO_CLASS_IS_INTERFACE (eclass))
1914 interface_count += idepth;
1915 /* IList, ICollection, IEnumerable */
1916 interface_count *= 3;
1917 real_count = interface_count;
1918 if (internal_enumerator)
1919 real_count += idepth + eclass->interface_offsets_count;
1920 interfaces = g_malloc0 (sizeof (MonoClass*) * real_count);
1921 if (MONO_CLASS_IS_INTERFACE (eclass)) {
1922 interfaces [0] = mono_defaults.object_class;
1926 for (i = 0; i < idepth; i++) {
1927 mono_class_init (eclass->supertypes [i]);
1928 interfaces [j] = eclass->supertypes [i];
1932 if (all_interfaces) {
1933 for (i = 0; i < eclass->interface_offsets_count; i++) {
1934 interfaces [j] = eclass->interfaces_packed [i];
1938 for (i = 0; i < eclass->interface_count; i++) {
1939 interfaces [j] = eclass->interfaces [i];
1945 /* instantiate the generic interfaces */
1946 for (i = 0; i < interface_count; i += 3) {
1948 MonoClass *iface = interfaces [i];
1950 args [0] = &iface->byval_arg;
1951 interfaces [i] = mono_class_bind_generic_parameters (
1952 mono_defaults.generic_ilist_class, 1, args, FALSE);
1953 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));
1954 args [0] = &iface->byval_arg;
1955 interfaces [i + 1] = mono_class_bind_generic_parameters (
1956 generic_icollection_class, 1, args, FALSE);
1957 args [0] = &iface->byval_arg;
1958 interfaces [i + 2] = mono_class_bind_generic_parameters (
1959 generic_ienumerable_class, 1, args, FALSE);
1960 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i + 1]->byval_arg, 0));
1961 //g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i + 2]->byval_arg, 0));
1963 if (internal_enumerator) {
1965 /* instantiate IEnumerator<iface> */
1966 for (i = 0; i < interface_count; i++) {
1968 MonoClass *iface = interfaces [i];
1970 args [0] = &iface->byval_arg;
1971 interfaces [i] = mono_class_bind_generic_parameters (
1972 generic_ienumerator_class, 1, args, FALSE);
1973 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
1975 if (!eclass_is_valuetype) {
1976 j = interface_count;
1977 for (i = 0; i < eclass->idepth; i++) {
1979 args [0] = &eclass->supertypes [i]->byval_arg;
1980 interfaces [j] = mono_class_bind_generic_parameters (
1981 generic_ienumerator_class, 1, args, FALSE);
1982 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
1985 for (i = 0; i < eclass->interface_offsets_count; i++) {
1986 MonoClass *iface = eclass->interfaces_packed [i];
1988 args [0] = &iface->byval_arg;
1989 interfaces [j] = mono_class_bind_generic_parameters (
1990 generic_ienumerator_class, 1, args, FALSE);
1991 /*g_print ("%s implements %s\n", class->name, mono_type_get_name_full (&interfaces [i]->byval_arg, 0));*/
2001 * LOCKING: this is supposed to be called with the loader lock held.
2004 setup_interface_offsets (MonoClass *class, int cur_slot)
2008 MonoClass **interfaces_full;
2009 int *interface_offsets_full;
2011 int interface_offsets_count;
2012 MonoClass **array_interfaces;
2013 int num_array_interfaces;
2014 int is_enumerator = FALSE;
2017 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
2018 * implicit innterfaces have the property that they are assigned the same slot in the vtables
2019 * for compatible interfaces
2021 array_interfaces = get_implicit_generic_array_interfaces (class, &num_array_interfaces, &is_enumerator);
2023 /* compute maximum number of slots and maximum interface id */
2025 for (k = class; k ; k = k->parent) {
2026 for (i = 0; i < k->interface_count; i++) {
2027 ic = k->interfaces [i];
2030 mono_class_init (ic);
2032 if (max_iid < ic->interface_id)
2033 max_iid = ic->interface_id;
2035 ifaces = mono_class_get_implemented_interfaces (k);
2037 for (i = 0; i < ifaces->len; ++i) {
2038 ic = g_ptr_array_index (ifaces, i);
2039 if (max_iid < ic->interface_id)
2040 max_iid = ic->interface_id;
2042 g_ptr_array_free (ifaces, TRUE);
2045 for (i = 0; i < num_array_interfaces; ++i) {
2046 ic = array_interfaces [i];
2047 mono_class_init (ic);
2048 if (max_iid < ic->interface_id)
2049 max_iid = ic->interface_id;
2052 if (MONO_CLASS_IS_INTERFACE (class)) {
2053 if (max_iid < class->interface_id)
2054 max_iid = class->interface_id;
2056 class->max_interface_id = max_iid;
2057 /* compute vtable offset for interfaces */
2058 interfaces_full = g_malloc (sizeof (MonoClass*) * (max_iid + 1));
2059 interface_offsets_full = g_malloc (sizeof (int) * (max_iid + 1));
2061 for (i = 0; i <= max_iid; i++) {
2062 interfaces_full [i] = NULL;
2063 interface_offsets_full [i] = -1;
2066 ifaces = mono_class_get_implemented_interfaces (class);
2068 for (i = 0; i < ifaces->len; ++i) {
2069 ic = g_ptr_array_index (ifaces, i);
2070 interfaces_full [ic->interface_id] = ic;
2071 interface_offsets_full [ic->interface_id] = cur_slot;
2072 cur_slot += ic->method.count;
2074 g_ptr_array_free (ifaces, TRUE);
2077 for (k = class->parent; k ; k = k->parent) {
2078 ifaces = mono_class_get_implemented_interfaces (k);
2080 for (i = 0; i < ifaces->len; ++i) {
2081 ic = g_ptr_array_index (ifaces, i);
2083 if (interface_offsets_full [ic->interface_id] == -1) {
2084 int io = mono_class_interface_offset (k, ic);
2088 interfaces_full [ic->interface_id] = ic;
2089 interface_offsets_full [ic->interface_id] = io;
2092 g_ptr_array_free (ifaces, TRUE);
2096 if (MONO_CLASS_IS_INTERFACE (class)) {
2097 interfaces_full [class->interface_id] = class;
2098 interface_offsets_full [class->interface_id] = cur_slot;
2101 if (num_array_interfaces) {
2102 if (is_enumerator) {
2103 int ienumerator_offset;
2104 g_assert (strcmp (class->interfaces [0]->name, "IEnumerator`1") == 0);
2105 ienumerator_offset = interface_offsets_full [class->interfaces [0]->interface_id];
2106 for (i = 0; i < num_array_interfaces; ++i) {
2107 ic = array_interfaces [i];
2108 interfaces_full [ic->interface_id] = ic;
2109 if (strcmp (ic->name, "IEnumerator`1") == 0)
2110 interface_offsets_full [ic->interface_id] = ienumerator_offset;
2112 g_assert_not_reached ();
2113 /*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);*/
2116 int ilist_offset, icollection_offset, ienumerable_offset;
2117 g_assert (strcmp (class->interfaces [0]->name, "IList`1") == 0);
2118 g_assert (strcmp (class->interfaces [0]->interfaces [0]->name, "ICollection`1") == 0);
2119 g_assert (strcmp (class->interfaces [0]->interfaces [1]->name, "IEnumerable`1") == 0);
2120 ilist_offset = interface_offsets_full [class->interfaces [0]->interface_id];
2121 icollection_offset = interface_offsets_full [class->interfaces [0]->interfaces [0]->interface_id];
2122 ienumerable_offset = interface_offsets_full [class->interfaces [0]->interfaces [1]->interface_id];
2123 g_assert (ilist_offset >= 0 && icollection_offset >= 0 && ienumerable_offset >= 0);
2124 for (i = 0; i < num_array_interfaces; ++i) {
2125 ic = array_interfaces [i];
2126 interfaces_full [ic->interface_id] = ic;
2127 if (ic->generic_class->container_class == mono_defaults.generic_ilist_class)
2128 interface_offsets_full [ic->interface_id] = ilist_offset;
2129 else if (strcmp (ic->name, "ICollection`1") == 0)
2130 interface_offsets_full [ic->interface_id] = icollection_offset;
2131 else if (strcmp (ic->name, "IEnumerable`1") == 0)
2132 interface_offsets_full [ic->interface_id] = ienumerable_offset;
2134 g_assert_not_reached ();
2135 /*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);*/
2140 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2141 if (interface_offsets_full [i] != -1) {
2142 interface_offsets_count ++;
2145 class->interface_offsets_count = interface_offsets_count;
2146 class->interfaces_packed = mono_mempool_alloc (class->image->mempool, sizeof (MonoClass*) * interface_offsets_count);
2147 class->interface_offsets_packed = mono_mempool_alloc (class->image->mempool, sizeof (int) * interface_offsets_count);
2148 class->interface_bitmap = mono_mempool_alloc0 (class->image->mempool, (sizeof (guint8) * ((max_iid + 1) >> 3)) + (((max_iid + 1) & 7)? 1 :0));
2149 for (interface_offsets_count = 0, i = 0; i <= max_iid; i++) {
2150 if (interface_offsets_full [i] != -1) {
2151 class->interface_bitmap [i >> 3] |= (1 << (i & 7));
2152 class->interfaces_packed [interface_offsets_count] = interfaces_full [i];
2153 class->interface_offsets_packed [interface_offsets_count] = interface_offsets_full [i];
2154 /*if (num_array_interfaces)
2155 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]);*/
2156 interface_offsets_count ++;
2160 g_free (interfaces_full);
2161 g_free (interface_offsets_full);
2162 g_free (array_interfaces);
2164 //printf ("JUST DONE: ");
2165 //print_implemented_interfaces (class);
2171 * Setup interface offsets for interfaces. Used by Ref.Emit.
2174 mono_class_setup_interface_offsets (MonoClass *class)
2176 mono_loader_lock ();
2178 setup_interface_offsets (class, 0);
2180 mono_loader_unlock ();
2184 mono_class_setup_vtable (MonoClass *class)
2186 MonoMethod **overrides;
2187 MonoGenericContext *context;
2196 mono_class_setup_methods (class);
2198 if (MONO_CLASS_IS_INTERFACE (class))
2201 mono_loader_lock ();
2203 if (class->vtable) {
2204 mono_loader_unlock ();
2208 mono_stats.generic_vtable_count ++;
2210 if (class->generic_class) {
2211 context = mono_class_get_context (class);
2212 type_token = class->generic_class->container_class->type_token;
2214 context = (MonoGenericContext *) class->generic_container;
2215 type_token = class->type_token;
2218 if (class->image->dynamic) {
2219 if (class->generic_class) {
2220 MonoClass *gklass = class->generic_class->container_class;
2222 mono_reflection_get_dynamic_overrides (gklass, &overrides, &onum);
2223 for (i = 0; i < onum; ++i) {
2224 MonoMethod *override = overrides [(i * 2) + 1];
2225 MonoMethod *inflated = NULL;
2228 for (j = 0; j < class->method.count; ++j) {
2229 if (gklass->methods [j] == override) {
2230 inflated = class->methods [j];
2234 g_assert (inflated);
2236 overrides [(i * 2) + 1] = inflated;
2239 mono_reflection_get_dynamic_overrides (class, &overrides, &onum);
2242 /* The following call fails if there are missing methods in the type */
2243 ok = mono_class_get_overrides_full (class->image, type_token, &overrides, &onum, context);
2247 mono_class_setup_vtable_general (class, overrides, onum);
2251 mono_loader_unlock ();
2257 check_core_clr_override_method (MonoClass *class, MonoMethod *override, MonoMethod *base)
2259 MonoSecurityCoreCLRLevel override_level = mono_security_core_clr_method_level (override, FALSE);
2260 MonoSecurityCoreCLRLevel base_level = mono_security_core_clr_method_level (base, FALSE);
2262 if (override_level != base_level && base_level == MONO_SECURITY_CORE_CLR_CRITICAL) {
2263 class->exception_type = MONO_EXCEPTION_TYPE_LOAD;
2264 class->exception_data = NULL;
2269 static int __use_new_interface_vtable_code = -1;
2271 use_new_interface_vtable_code (void) {
2272 if (__use_new_interface_vtable_code == -1) {
2273 char *env_var = getenv ("MONO_USE_NEW_INTERFACE_VTABLE_CODE");
2274 if (env_var == NULL) {
2275 __use_new_interface_vtable_code = TRUE;
2277 if ((strcmp (env_var, "0") == 0) || (strcmp (env_var, "false") == 0) || (strcmp (env_var, "FALSE") == 0)) {
2278 __use_new_interface_vtable_code = FALSE;
2280 __use_new_interface_vtable_code = TRUE;
2284 return __use_new_interface_vtable_code;
2288 #define DEBUG_INTERFACE_VTABLE_CODE 0
2289 #define TRACE_INTERFACE_VTABLE_CODE 0
2291 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2292 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
2296 #define DEBUG_INTERFACE_VTABLE(stmt)
2299 #if TRACE_INTERFACE_VTABLE_CODE
2300 #define TRACE_INTERFACE_VTABLE(stmt) do {\
2304 #define TRACE_INTERFACE_VTABLE(stmt)
2308 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2310 mono_signature_get_full_desc (MonoMethodSignature *sig, gboolean include_namespace)
2314 GString *res = g_string_new ("");
2316 g_string_append_c (res, '(');
2317 for (i = 0; i < sig->param_count; ++i) {
2319 g_string_append_c (res, ',');
2320 mono_type_get_desc (res, sig->params [i], include_namespace);
2322 g_string_append (res, ")=>");
2323 if (sig->ret != NULL) {
2324 mono_type_get_desc (res, sig->ret, include_namespace);
2326 g_string_append (res, "NULL");
2329 g_string_free (res, FALSE);
2333 print_method_signatures (MonoMethod *im, MonoMethod *cm) {
2334 char *im_sig = mono_signature_get_full_desc (mono_method_signature (im), TRUE);
2335 char *cm_sig = mono_signature_get_full_desc (mono_method_signature (cm), TRUE);
2336 printf ("(IM \"%s\", CM \"%s\")", im_sig, cm_sig);
2344 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) {
2345 if (strcmp (im->name, cm->name) == 0) {
2346 if (! (cm->flags & METHOD_ATTRIBUTE_PUBLIC)) {
2347 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
2350 if (! slot_is_empty) {
2351 if (require_newslot) {
2352 if (! interface_is_explicitly_implemented_by_class) {
2353 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
2356 if (! (cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
2357 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
2361 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
2364 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2365 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
2366 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2367 TRACE_INTERFACE_VTABLE (printf ("]"));
2370 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
2371 /* CAS - SecurityAction.InheritanceDemand on interface */
2372 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2373 mono_secman_inheritancedemand_method (cm, im);
2376 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2377 check_core_clr_override_method (class, cm, im);
2378 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
2381 MonoClass *ic = im->klass;
2382 const char *ic_name_space = ic->name_space;
2383 const char *ic_name = ic->name;
2386 if (! require_newslot) {
2387 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
2390 if (cm->klass->rank == 0) {
2391 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
2394 if (! mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2395 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
2396 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2397 TRACE_INTERFACE_VTABLE (printf ("]"));
2400 if (mono_class_get_image (ic) != mono_defaults.corlib) {
2401 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
2404 if ((ic_name_space == NULL) || (strcmp (ic_name_space, "System.Collections.Generic") != 0)) {
2405 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
2408 if ((ic_name == NULL) || ((strcmp (ic_name, "IEnumerable`1") != 0) && (strcmp (ic_name, "ICollection`1") != 0) && (strcmp (ic_name, "IList`1") != 0))) {
2409 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
2413 subname = strstr (cm->name, ic_name_space);
2414 if (subname != cm->name) {
2415 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
2418 subname += strlen (ic_name_space);
2419 if (subname [0] != '.') {
2420 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
2424 if (strstr (subname, ic_name) != subname) {
2425 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
2428 subname += strlen (ic_name);
2429 if (subname [0] != '.') {
2430 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
2434 if (strcmp (subname, im->name) != 0) {
2435 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
2439 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
2440 /* CAS - SecurityAction.InheritanceDemand on interface */
2441 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2442 mono_secman_inheritancedemand_method (cm, im);
2445 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2446 check_core_clr_override_method (class, cm, im);
2448 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
2453 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
2455 foreach_override (gpointer key, gpointer value, gpointer user_data) {
2456 MonoMethod *method = key;
2457 MonoMethod *override = value;
2458 MonoClass *method_class = mono_method_get_class (method);
2459 MonoClass *override_class = mono_method_get_class (override);
2461 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
2462 mono_class_get_namespace (method_class), mono_class_get_name (method_class), mono_method_get_name (method),
2463 mono_class_get_namespace (override_class), mono_class_get_name (override_class), mono_method_get_name (override));
2466 print_overrides (GHashTable *override_map, const char *message) {
2468 printf ("Override map \"%s\" START:\n", message);
2469 g_hash_table_foreach (override_map, foreach_override, NULL);
2470 printf ("Override map \"%s\" END.\n", message);
2472 printf ("Override map \"%s\" EMPTY.\n", message);
2476 print_vtable_full (MonoClass *class, MonoMethod** vtable, int size, int first_non_interface_slot, const char *message, gboolean print_interfaces) {
2477 char *full_name = mono_type_full_name (&class->byval_arg);
2481 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name, message, size);
2483 if (print_interfaces) {
2484 print_implemented_interfaces (class);
2485 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name, size);
2488 if (class->parent) {
2489 parent_size = class->parent->vtable_size;
2493 for (i = 0; i < size; ++i) {
2494 MonoMethod *cm = vtable [i];
2496 char *cm_name = mono_method_full_name (cm, TRUE);
2497 char newness = (i < parent_size) ? 'O' : ((i < first_non_interface_slot) ? 'I' : 'N');
2498 printf (" [%c][%03d][INDEX %03d] %s\n", newness, i, cm->slot, cm_name);
2508 print_unimplemented_interface_method_info (MonoClass *class, MonoClass *ic, MonoMethod *im, int im_slot, MonoMethod **overrides, int onum) {
2510 char *method_signature;
2512 for (index = 0; index < onum; ++index) {
2513 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot, overrides [index*2+1]->name,
2514 overrides [index*2+1]->slot, overrides [index*2]->name, overrides [index*2]->slot);
2516 method_signature = mono_signature_get_desc (mono_method_signature (im), FALSE);
2517 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
2518 mono_type_get_name (&ic->byval_arg), im->name, method_signature, class->name_space, class->name);
2519 g_free (method_signature);
2520 for (index = 0; index < class->method.count; ++index) {
2521 MonoMethod *cm = class->methods [index];
2522 method_signature = mono_signature_get_desc (mono_method_signature (cm), TRUE);
2524 printf ("METHOD %s(%s)\n", cm->name, method_signature);
2525 g_free (method_signature);
2530 * LOCKING: this is supposed to be called with the loader lock held.
2533 mono_class_setup_vtable_general (MonoClass *class, MonoMethod **overrides, int onum)
2536 MonoMethod **vtable;
2537 int i, max_vtsize = 0, max_iid, cur_slot = 0;
2538 GPtrArray *ifaces, *pifaces = NULL;
2539 GHashTable *override_map = NULL;
2540 gboolean security_enabled = mono_is_security_manager_active ();
2541 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
2542 int first_non_interface_slot;
2548 ifaces = mono_class_get_implemented_interfaces (class);
2550 for (i = 0; i < ifaces->len; i++) {
2551 MonoClass *ic = g_ptr_array_index (ifaces, i);
2552 max_vtsize += ic->method.count;
2554 g_ptr_array_free (ifaces, TRUE);
2558 if (class->parent) {
2559 mono_class_init (class->parent);
2560 mono_class_setup_vtable (class->parent);
2561 max_vtsize += class->parent->vtable_size;
2562 cur_slot = class->parent->vtable_size;
2565 max_vtsize += class->method.count;
2567 vtable = alloca (sizeof (gpointer) * max_vtsize);
2568 memset (vtable, 0, sizeof (gpointer) * max_vtsize);
2570 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
2572 cur_slot = setup_interface_offsets (class, cur_slot);
2573 max_iid = class->max_interface_id;
2574 DEBUG_INTERFACE_VTABLE (first_non_interface_slot = cur_slot);
2576 if (use_new_interface_vtable_code ()) {
2577 if (class->parent && class->parent->vtable_size) {
2578 MonoClass *parent = class->parent;
2581 memcpy (vtable, parent->vtable, sizeof (gpointer) * parent->vtable_size);
2583 // Also inherit parent interface vtables, just as a starting point.
2584 // This is needed otherwise bug-77127.exe fails when the property methods
2585 // have different names in the iterface and the class, because for child
2586 // classes the ".override" information is not used anymore.
2587 for (i = 0; i < parent->interface_offsets_count; i++) {
2588 MonoClass *parent_interface = parent->interfaces_packed [i];
2589 int interface_offset = mono_class_interface_offset (class, parent_interface);
2591 if (interface_offset >= parent->vtable_size) {
2592 int parent_interface_offset = mono_class_interface_offset (parent, parent_interface);
2595 mono_class_setup_methods (parent_interface);
2596 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface->name_space, parent_interface->name));
2597 for (j = 0; j < parent_interface->method.count; j++) {
2598 vtable [interface_offset + j] = parent->vtable [parent_interface_offset + j];
2599 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
2600 parent_interface_offset + j, parent_interface_offset, j,
2601 interface_offset + j, interface_offset, j));
2608 if (class->parent && class->parent->vtable_size)
2609 memcpy (vtable, class->parent->vtable, sizeof (gpointer) * class->parent->vtable_size);
2612 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER INHERITING PARENT VTABLE", TRUE));
2613 /* override interface methods */
2614 for (i = 0; i < onum; i++) {
2615 MonoMethod *decl = overrides [i*2];
2616 if (MONO_CLASS_IS_INTERFACE (decl->klass)) {
2618 mono_class_setup_methods (decl->klass);
2619 g_assert (decl->slot != -1);
2620 dslot = decl->slot + mono_class_interface_offset (class, decl->klass);
2621 vtable [dslot] = overrides [i*2 + 1];
2622 vtable [dslot]->slot = dslot;
2624 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
2626 g_hash_table_insert (override_map, overrides [i * 2], overrides [i * 2 + 1]);
2628 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2629 check_core_clr_override_method (class, vtable [dslot], decl);
2632 TRACE_INTERFACE_VTABLE (print_overrides (override_map, "AFTER OVERRIDING INTERFACE METHODS"));
2633 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER OVERRIDING INTERFACE METHODS", FALSE));
2635 if (use_new_interface_vtable_code ()) {
2636 // Loop on all implemented interfaces...
2637 for (i = 0; i < class->interface_offsets_count; i++) {
2638 MonoClass *parent = class->parent;
2640 gboolean interface_is_explicitly_implemented_by_class;
2643 ic = class->interfaces_packed [i];
2644 ic_offset = mono_class_interface_offset (class, ic);
2646 mono_class_setup_methods (ic);
2648 // Check if this interface is explicitly implemented (instead of just inherited)
2649 if (parent != NULL) {
2650 int implemented_interfaces_index;
2651 interface_is_explicitly_implemented_by_class = FALSE;
2652 for (implemented_interfaces_index = 0; implemented_interfaces_index < class->interface_count; implemented_interfaces_index++) {
2653 if (ic == class->interfaces [implemented_interfaces_index]) {
2654 interface_is_explicitly_implemented_by_class = TRUE;
2659 interface_is_explicitly_implemented_by_class = TRUE;
2662 // Loop on all interface methods...
2663 for (im_index = 0; im_index < ic->method.count; im_index++) {
2664 MonoMethod *im = ic->methods [im_index];
2665 int im_slot = ic_offset + im->slot;
2666 MonoMethod *override_im = (override_map != NULL) ? g_hash_table_lookup (override_map, im) : NULL;
2668 if (im->flags & METHOD_ATTRIBUTE_STATIC)
2671 // If there is an explicit implementation, just use it right away,
2672 // otherwise look for a matching method
2673 if (override_im == NULL) {
2676 // First look for a suitable method among the class methods
2677 for (cm_index = 0; cm_index < class->method.count; cm_index++) {
2678 MonoMethod *cm = class->methods [cm_index];
2680 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)));
2681 if ((cm->flags & METHOD_ATTRIBUTE_VIRTUAL) && check_interface_method_override (class, im, cm, TRUE, interface_is_explicitly_implemented_by_class, (vtable [im_slot] == NULL), security_enabled)) {
2682 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
2683 vtable [im_slot] = cm;
2684 /* Why do we need this? */
2689 TRACE_INTERFACE_VTABLE (printf ("\n"));
2692 // If the slot is still empty, look in all the inherited virtual methods...
2693 if ((vtable [im_slot] == NULL) && class->parent != NULL) {
2694 MonoClass *parent = class->parent;
2695 // Reverse order, so that last added methods are preferred
2696 for (cm_index = parent->vtable_size - 1; cm_index >= 0; cm_index--) {
2697 MonoMethod *cm = parent->vtable [cm_index];
2699 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));
2700 if ((cm != NULL) && check_interface_method_override (class, im, cm, FALSE, FALSE, TRUE, security_enabled)) {
2701 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
2702 vtable [im_slot] = cm;
2703 /* Why do we need this? */
2709 TRACE_INTERFACE_VTABLE ((cm != NULL) && printf ("\n"));
2713 g_assert (vtable [im_slot] == override_im);
2718 // If the class is not abstract, check that all its interface slots are full.
2719 // The check is done here and not directly at the end of the loop above because
2720 // it can happen (for injected generic array interfaces) that the same slot is
2721 // processed multiple times (those interfaces have overlapping slots), and it
2722 // will not always be the first pass the one that fills the slot.
2723 if (! (class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
2724 for (i = 0; i < class->interface_offsets_count; i++) {
2728 ic = class->interfaces_packed [i];
2729 ic_offset = mono_class_interface_offset (class, ic);
2731 for (im_index = 0; im_index < ic->method.count; im_index++) {
2732 MonoMethod *im = ic->methods [im_index];
2733 int im_slot = ic_offset + im->slot;
2735 if (im->flags & METHOD_ATTRIBUTE_STATIC)
2738 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
2739 im_slot, ic->name_space, ic->name, im->name, (vtable [im_slot] == NULL)));
2740 if (vtable [im_slot] == NULL) {
2741 print_unimplemented_interface_method_info (class, ic, im, im_slot, overrides, onum);
2742 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2744 g_hash_table_destroy (override_map);
2751 for (k = class; k ; k = k->parent) {
2754 ifaces = mono_class_get_implemented_interfaces (k);
2756 nifaces = ifaces->len;
2757 if (k->generic_class) {
2758 pifaces = mono_class_get_implemented_interfaces (
2759 k->generic_class->container_class);
2760 g_assert (pifaces && (pifaces->len == nifaces));
2763 for (i = 0; i < nifaces; i++) {
2764 MonoClass *pic = NULL;
2767 ic = g_ptr_array_index (ifaces, i);
2769 pic = g_ptr_array_index (pifaces, i);
2770 g_assert (ic->interface_id <= k->max_interface_id);
2771 io = mono_class_interface_offset (k, ic);
2774 g_assert (io <= max_vtsize);
2777 mono_class_setup_methods (ic);
2778 for (l = 0; l < ic->method.count; l++) {
2779 MonoMethod *im = ic->methods [l];
2781 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
2784 for (j = 0; j < class->method.count; ++j) {
2785 MonoMethod *cm = class->methods [j];
2786 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL) ||
2787 !((cm->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == METHOD_ATTRIBUTE_PUBLIC) ||
2788 !(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT))
2790 if (!strcmp(cm->name, im->name) &&
2791 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
2793 /* CAS - SecurityAction.InheritanceDemand on interface */
2794 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2795 mono_secman_inheritancedemand_method (cm, im);
2798 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2799 check_core_clr_override_method (class, cm, im);
2801 g_assert (io + l <= max_vtsize);
2802 vtable [io + l] = cm;
2803 TRACE_INTERFACE_VTABLE (printf (" [NOA] Filling slot %d (%d+%d) with method '%s'.'%s':'%s' ", io + l, io, l, cm->klass->name_space, cm->klass->name, cm->name));
2804 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2805 TRACE_INTERFACE_VTABLE (printf ("\n"));
2810 /* already implemented */
2811 if (io >= k->vtable_size)
2815 // Override methods with the same fully qualified name
2816 for (l = 0; l < ic->method.count; l++) {
2817 MonoMethod *im = ic->methods [l];
2818 char *qname, *fqname, *cname, *the_cname;
2821 if (vtable [io + l])
2825 the_cname = mono_type_get_name_full (&pic->byval_arg, MONO_TYPE_NAME_FORMAT_IL);
2829 cname = (char*)ic->name;
2832 qname = g_strconcat (cname, ".", im->name, NULL);
2833 if (ic->name_space && ic->name_space [0])
2834 fqname = g_strconcat (ic->name_space, ".", cname, ".", im->name, NULL);
2838 for (k1 = class; k1; k1 = k1->parent) {
2839 for (j = 0; j < k1->method.count; ++j) {
2840 MonoMethod *cm = k1->methods [j];
2842 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
2845 if (((fqname && !strcmp (cm->name, fqname)) || !strcmp (cm->name, qname)) &&
2846 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im)) &&
2847 ((vtable [io + l] == NULL) || mono_class_is_subclass_of (cm->klass, vtable [io + l]->klass, FALSE))) {
2849 /* CAS - SecurityAction.InheritanceDemand on interface */
2850 if (security_enabled && (im->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
2851 mono_secman_inheritancedemand_method (cm, im);
2854 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
2855 check_core_clr_override_method (class, cm, im);
2857 g_assert (io + l <= max_vtsize);
2858 vtable [io + l] = cm;
2859 TRACE_INTERFACE_VTABLE (printf (" [FQN] Filling slot %d (%d+%d) with method '%s'.'%s':'%s' ", io + l, io, l, cm->klass->name_space, cm->klass->name, cm->name));
2860 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2861 TRACE_INTERFACE_VTABLE (printf ("\n"));
2871 // Override methods with the same name
2872 for (l = 0; l < ic->method.count; l++) {
2873 MonoMethod *im = ic->methods [l];
2876 g_assert (io + l <= max_vtsize);
2878 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
2881 for (k1 = class; k1; k1 = k1->parent) {
2882 for (j = 0; j < k1->method.count; ++j) {
2883 MonoMethod *cm = k1->methods [j];
2885 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL) ||
2886 !(cm->flags & METHOD_ATTRIBUTE_PUBLIC))
2889 if (!strcmp(cm->name, im->name) &&
2890 mono_metadata_signature_equal (mono_method_signature (cm), mono_method_signature (im))) {
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 check_core_clr_override_method (class, cm, im);
2900 g_assert (io + l <= max_vtsize);
2901 vtable [io + l] = cm;
2902 TRACE_INTERFACE_VTABLE (printf (" [SQN] Filling slot %d (%d+%d) with method '%s'.'%s':'%s' ", io + l, io, l, cm->klass->name_space, cm->klass->name, cm->name));
2903 TRACE_INTERFACE_VTABLE (print_method_signatures (im, cm));
2904 TRACE_INTERFACE_VTABLE (printf ("\n"));
2909 g_assert (io + l <= max_vtsize);
2910 if (vtable [io + l] && !(vtable [io + l]->flags & METHOD_ATTRIBUTE_ABSTRACT))
2915 if (!(class->flags & TYPE_ATTRIBUTE_ABSTRACT)) {
2916 for (l = 0; l < ic->method.count; l++) {
2918 MonoMethod *im = ic->methods [l];
2919 if (im->flags & METHOD_ATTRIBUTE_STATIC)
2921 g_assert (io + l <= max_vtsize);
2924 * If one of our parents already implements this interface
2925 * we can inherit the implementation.
2927 if (!(vtable [io + l])) {
2928 MonoClass *parent = class->parent;
2930 for (; parent; parent = parent->parent) {
2931 if (MONO_CLASS_IMPLEMENTS_INTERFACE (parent, ic->interface_id) &&
2933 vtable [io + l] = parent->vtable [mono_class_interface_offset (parent, ic) + l];
2934 TRACE_INTERFACE_VTABLE (printf (" [INH] Filling slot %d (%d+%d) with method '%s'.'%s':'%s'\n", io + l, io, l, vtable [io + l]->klass->name_space, vtable [io + l]->klass->name, vtable [io + l]->name));
2939 if (!(vtable [io + l])) {
2940 for (j = 0; j < onum; ++j) {
2941 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", io+l, overrides [j*2+1]->name,
2942 overrides [j*2+1]->slot, overrides [j*2]->name, overrides [j*2]->slot);
2944 msig = mono_signature_get_desc (mono_method_signature (im), FALSE);
2945 printf ("no implementation for interface method %s::%s(%s) in class %s.%s\n",
2946 mono_type_get_name (&ic->byval_arg), im->name, msig, class->name_space, class->name);
2948 for (j = 0; j < class->method.count; ++j) {
2949 MonoMethod *cm = class->methods [j];
2950 msig = mono_signature_get_desc (mono_method_signature (cm), TRUE);
2952 printf ("METHOD %s(%s)\n", cm->name, msig);
2956 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
2959 g_ptr_array_free (ifaces, TRUE);
2961 g_hash_table_destroy (override_map);
2968 for (l = 0; l < ic->method.count; l++) {
2969 MonoMethod *im = vtable [io + l];
2972 g_assert (io + l <= max_vtsize);
2974 /* FIXME: why do we need this ? */
2976 /* g_assert_not_reached (); */
2982 g_ptr_array_free (ifaces, TRUE);
2986 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable, cur_slot, first_non_interface_slot, "AFTER SETTING UP INTERFACE METHODS", FALSE));
2987 for (i = 0; i < class->method.count; ++i) {
2990 cm = class->methods [i];
2993 * Non-virtual method have no place in the vtable.
2994 * This also catches static methods (since they are not virtual).
2996 if (!(cm->flags & METHOD_ATTRIBUTE_VIRTUAL))
3000 * If the method is REUSE_SLOT, we must check in the
3001 * base class for a method to override.
3003 if (!(cm->flags & METHOD_ATTRIBUTE_NEW_SLOT)) {
3005 for (k = class->parent; k ; k = k->parent) {
3007 for (j = 0; j < k->method.count; ++j) {
3008 MonoMethod *m1 = k->methods [j];
3009 MonoMethodSignature *cmsig, *m1sig;
3011 if (!(m1->flags & METHOD_ATTRIBUTE_VIRTUAL))
3014 cmsig = mono_method_signature (cm);
3015 m1sig = mono_method_signature (m1);
3017 if (!cmsig || !m1sig) {
3018 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3022 if (!strcmp(cm->name, m1->name) &&
3023 mono_metadata_signature_equal (cmsig, m1sig)) {
3025 /* CAS - SecurityAction.InheritanceDemand */
3026 if (security_enabled && (m1->flags & METHOD_ATTRIBUTE_HAS_SECURITY)) {
3027 mono_secman_inheritancedemand_method (cm, m1);
3030 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3031 check_core_clr_override_method (class, cm, m1);
3033 slot = k->methods [j]->slot;
3034 g_assert (cm->slot < max_vtsize);
3036 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3037 g_hash_table_insert (override_map, m1, cm);
3049 cm->slot = cur_slot++;
3051 if (!(cm->flags & METHOD_ATTRIBUTE_ABSTRACT))
3052 vtable [cm->slot] = cm;
3055 /* override non interface methods */
3056 for (i = 0; i < onum; i++) {
3057 MonoMethod *decl = overrides [i*2];
3058 if (!MONO_CLASS_IS_INTERFACE (decl->klass)) {
3059 g_assert (decl->slot != -1);
3060 vtable [decl->slot] = overrides [i*2 + 1];
3061 overrides [i * 2 + 1]->slot = decl->slot;
3063 override_map = g_hash_table_new (mono_aligned_addr_hash, NULL);
3064 g_hash_table_insert (override_map, decl, overrides [i * 2 + 1]);
3066 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3067 check_core_clr_override_method (class, vtable [decl->slot], decl);
3072 * If a method occupies more than one place in the vtable, and it is
3073 * overriden, then change the other occurances too.
3076 for (i = 0; i < max_vtsize; ++i)
3078 MonoMethod *cm = g_hash_table_lookup (override_map, vtable [i]);
3083 g_hash_table_destroy (override_map);
3086 if (class->generic_class) {
3087 MonoClass *gklass = class->generic_class->container_class;
3089 mono_class_init (gklass);
3091 class->vtable_size = MAX (gklass->vtable_size, cur_slot);
3093 class->vtable_size = cur_slot;
3095 /* Try to share the vtable with our parent. */
3096 if (class->parent && (class->parent->vtable_size == class->vtable_size) && (memcmp (class->parent->vtable, vtable, sizeof (gpointer) * class->vtable_size) == 0)) {
3097 class->vtable = class->parent->vtable;
3099 class->vtable = mono_mempool_alloc0 (class->image->mempool, sizeof (gpointer) * class->vtable_size);
3100 memcpy (class->vtable, vtable, sizeof (gpointer) * class->vtable_size);
3103 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable, class->vtable_size, first_non_interface_slot, "FINALLY", FALSE));
3104 if (mono_print_vtable) {
3107 print_implemented_interfaces (class);
3109 for (i = 0; i <= max_iid; i++)
3110 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i))
3113 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg),
3114 class->vtable_size, icount);
3116 for (i = 0; i < class->vtable_size; ++i) {
3121 printf (" slot assigned: %03d, slot index: %03d %s\n", i, cm->slot,
3122 mono_method_full_name (cm, TRUE));
3128 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space,
3129 class->name, max_iid);
3131 for (i = 0; i < class->interface_count; i++) {
3132 ic = class->interfaces [i];
3133 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3134 mono_class_interface_offset (class, ic),
3135 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3138 for (k = class->parent; k ; k = k->parent) {
3139 for (i = 0; i < k->interface_count; i++) {
3140 ic = k->interfaces [i];
3141 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
3142 mono_class_interface_offset (class, ic),
3143 ic->method.count, ic->interface_id, mono_type_full_name (&ic->byval_arg));
3150 static MonoMethod *default_ghc = NULL;
3151 static MonoMethod *default_finalize = NULL;
3152 static int finalize_slot = -1;
3153 static int ghc_slot = -1;
3156 initialize_object_slots (MonoClass *class)
3161 if (class == mono_defaults.object_class) {
3162 mono_class_setup_vtable (class);
3163 for (i = 0; i < class->vtable_size; ++i) {
3164 MonoMethod *cm = class->vtable [i];
3166 if (!strcmp (cm->name, "GetHashCode"))
3168 else if (!strcmp (cm->name, "Finalize"))
3172 g_assert (ghc_slot > 0);
3173 default_ghc = class->vtable [ghc_slot];
3175 g_assert (finalize_slot > 0);
3176 default_finalize = class->vtable [finalize_slot];
3181 g_list_prepend_mempool (GList* l, MonoMemPool* mp, gpointer datum)
3183 GList* n = mono_mempool_alloc (mp, sizeof (GList));
3191 MonoMethod *array_method;
3193 } GenericArrayMethodInfo;
3195 static int generic_array_method_num = 0;
3196 static GenericArrayMethodInfo *generic_array_method_info = NULL;
3199 generic_array_methods (MonoClass *class)
3201 int i, count_generic = 0;
3202 GList *list = NULL, *tmp;
3203 if (generic_array_method_num)
3204 return generic_array_method_num;
3205 mono_class_setup_methods (class->parent);
3206 for (i = 0; i < class->parent->method.count; i++) {
3207 MonoMethod *m = class->parent->methods [i];
3208 if (!strncmp (m->name, "InternalArray__", 15)) {
3210 list = g_list_prepend (list, m);
3213 list = g_list_reverse (list);
3214 generic_array_method_info = g_malloc (sizeof (GenericArrayMethodInfo) * count_generic);
3216 for (tmp = list; tmp; tmp = tmp->next) {
3217 const char *mname, *iname;
3219 MonoMethod *m = tmp->data;
3220 generic_array_method_info [i].array_method = m;
3221 if (!strncmp (m->name, "InternalArray__ICollection_", 27)) {
3222 iname = "System.Collections.Generic.ICollection`1.";
3223 mname = m->name + 27;
3224 } else if (!strncmp (m->name, "InternalArray__IEnumerable_", 27)) {
3225 iname = "System.Collections.Generic.IEnumerable`1.";
3226 mname = m->name + 27;
3227 } else if (!strncmp (m->name, "InternalArray__", 15)) {
3228 iname = "System.Collections.Generic.IList`1.";
3229 mname = m->name + 15;
3231 g_assert_not_reached ();
3234 name = mono_mempool_alloc (mono_defaults.corlib->mempool, strlen (iname) + strlen (mname) + 1);
3235 strcpy (name, iname);
3236 strcpy (name + strlen (iname), mname);
3237 generic_array_method_info [i].name = name;
3240 /*g_print ("array generic methods: %d\n", count_generic);*/
3242 generic_array_method_num = count_generic;
3243 return generic_array_method_num;
3247 setup_generic_array_ifaces (MonoClass *class, MonoClass *iface, int pos)
3249 MonoGenericContext tmp_context;
3252 tmp_context.class_inst = NULL;
3253 tmp_context.method_inst = iface->generic_class->context.class_inst;
3254 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
3256 for (i = 0; i < generic_array_method_num; i++) {
3257 MonoMethod *m = generic_array_method_info [i].array_method;
3258 MonoMethod *inflated;
3260 inflated = mono_class_inflate_generic_method (m, &tmp_context);
3261 class->methods [pos++] = mono_marshal_get_generic_array_helper (class, iface, generic_array_method_info [i].name, inflated);
3266 create_array_method (MonoClass *class, const char *name, MonoMethodSignature *sig)
3270 method = (MonoMethod *) mono_mempool_alloc0 (class->image->mempool, sizeof (MonoMethodPInvoke));
3271 method->klass = class;
3272 method->flags = METHOD_ATTRIBUTE_PUBLIC;
3273 method->iflags = METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL;
3274 method->signature = sig;
3275 method->name = name;
3278 if (name [0] == '.') {
3279 method->flags |= METHOD_ATTRIBUTE_RT_SPECIAL_NAME | METHOD_ATTRIBUTE_SPECIAL_NAME;
3281 method->iflags |= METHOD_IMPL_ATTRIBUTE_RUNTIME;
3287 concat_two_strings_with_zero (MonoMemPool *pool, const char *s1, const char *s2)
3289 int len = strlen (s1) + strlen (s2) + 2;
3290 char *s = mono_mempool_alloc (pool, len);
3293 result = g_snprintf (s, len, "%s%c%s", s1, '\0', s2);
3294 g_assert (result == len - 1);
3300 set_failure_from_loader_error (MonoClass *class, MonoLoaderError *error)
3302 class->exception_type = error->exception_type;
3304 switch (error->exception_type) {
3305 case MONO_EXCEPTION_TYPE_LOAD:
3306 class->exception_data = concat_two_strings_with_zero (class->image->mempool, error->class_name, error->assembly_name);
3309 case MONO_EXCEPTION_MISSING_METHOD:
3310 class->exception_data = concat_two_strings_with_zero (class->image->mempool, error->class_name, error->member_name);
3313 case MONO_EXCEPTION_MISSING_FIELD: {
3314 const char *name_space = error->klass->name_space ? error->klass->name_space : NULL;
3315 const char *class_name;
3318 class_name = g_strdup_printf ("%s.%s", name_space, error->klass->name);
3320 class_name = error->klass->name;
3322 class->exception_data = concat_two_strings_with_zero (class->image->mempool, class_name, error->member_name);
3325 g_free ((void*)class_name);
3329 case MONO_EXCEPTION_FILE_NOT_FOUND: {
3332 if (error->ref_only)
3333 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.";
3335 msg = "Could not load file or assembly '%s' or one of its dependencies.";
3337 class->exception_data = concat_two_strings_with_zero (class->image->mempool, msg, error->assembly_name);
3341 case MONO_EXCEPTION_BAD_IMAGE:
3342 class->exception_data = error->msg;
3346 g_assert_not_reached ();
3351 check_core_clr_inheritance (MonoClass *class)
3353 MonoSecurityCoreCLRLevel class_level, parent_level;
3354 MonoClass *parent = class->parent;
3359 class_level = mono_security_core_clr_class_level (class);
3360 parent_level = mono_security_core_clr_class_level (parent);
3362 if (class_level < parent_level) {
3363 class->exception_type = MONO_EXCEPTION_TYPE_LOAD;
3364 class->exception_data = NULL;
3370 * @class: the class to initialize
3372 * compute the instance_size, class_size and other infos that cannot be
3373 * computed at mono_class_get() time. Also compute a generic vtable and
3374 * the method slot numbers. We use this infos later to create a domain
3377 * Returns TRUE on success or FALSE if there was a problem in loading
3378 * the type (incorrect assemblies, missing assemblies, methods, etc).
3381 mono_class_init (MonoClass *class)
3384 MonoCachedClassInfo cached_info;
3385 gboolean has_cached_info;
3386 int class_init_ok = TRUE;
3391 return class->exception_type == MONO_EXCEPTION_NONE;
3393 /*g_print ("Init class %s\n", class->name);*/
3395 /* We do everything inside the lock to prevent races */
3396 mono_loader_lock ();
3398 if (class->inited) {
3399 mono_loader_unlock ();
3400 /* Somebody might have gotten in before us */
3401 return class->exception_type == MONO_EXCEPTION_NONE;
3404 if (class->init_pending) {
3405 mono_loader_unlock ();
3406 /* this indicates a cyclic dependency */
3407 g_error ("pending init %s.%s\n", class->name_space, class->name);
3410 class->init_pending = 1;
3412 /* CAS - SecurityAction.InheritanceDemand */
3413 if (mono_is_security_manager_active () && class->parent && (class->parent->flags & TYPE_ATTRIBUTE_HAS_SECURITY)) {
3414 mono_secman_inheritancedemand_class (class, class->parent);
3417 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR)
3418 check_core_clr_inheritance (class);
3420 mono_stats.initialized_class_count++;
3422 if (class->generic_class && !class->generic_class->is_dynamic) {
3423 MonoClass *gklass = class->generic_class->container_class;
3425 mono_stats.generic_class_count++;
3427 class->method = gklass->method;
3428 class->field = gklass->field;
3430 mono_class_init (gklass);
3431 mono_class_setup_methods (gklass);
3432 mono_class_setup_properties (gklass);
3434 if (MONO_CLASS_IS_INTERFACE (class))
3435 class->interface_id = mono_get_unique_iid (class);
3437 g_assert (class->interface_count == gklass->interface_count);
3440 if (class->parent && !class->parent->inited)
3441 mono_class_init (class->parent);
3443 has_cached_info = mono_class_get_cached_class_info (class, &cached_info);
3445 if (!class->generic_class && !class->image->dynamic && (!has_cached_info || (has_cached_info && cached_info.has_nested_classes))) {
3446 i = mono_metadata_nesting_typedef (class->image, class->type_token, 1);
3449 guint32 cols [MONO_NESTED_CLASS_SIZE];
3450 mono_metadata_decode_row (&class->image->tables [MONO_TABLE_NESTEDCLASS], i - 1, cols, MONO_NESTED_CLASS_SIZE);
3451 nclass = mono_class_create_from_typedef (class->image, MONO_TOKEN_TYPE_DEF | cols [MONO_NESTED_CLASS_NESTED]);
3452 class->nested_classes = g_list_prepend_mempool (class->nested_classes, class->image->mempool, nclass);
3454 i = mono_metadata_nesting_typedef (class->image, class->type_token, i + 1);
3459 * Computes the size used by the fields, and their locations
3461 if (has_cached_info) {
3462 class->instance_size = cached_info.instance_size;
3463 class->sizes.class_size = cached_info.class_size;
3464 class->packing_size = cached_info.packing_size;
3465 class->min_align = cached_info.min_align;
3466 class->blittable = cached_info.blittable;
3467 class->has_references = cached_info.has_references;
3468 class->has_static_refs = cached_info.has_static_refs;
3469 class->no_special_static_fields = cached_info.no_special_static_fields;
3472 if (!class->size_inited){
3473 mono_class_setup_fields (class);
3474 if (class->exception_type || mono_loader_get_last_error ()){
3475 class_init_ok = FALSE;
3481 /* initialize method pointers */
3483 MonoMethod *amethod;
3484 MonoMethodSignature *sig;
3485 int count_generic = 0, first_generic = 0;
3488 class->method.count = 3 + (class->rank > 1? 2: 1);
3490 if (class->interface_count) {
3491 count_generic = generic_array_methods (class);
3492 first_generic = class->method.count;
3493 class->method.count += class->interface_count * count_generic;
3496 sig = mono_metadata_signature_alloc (class->image, class->rank);
3497 sig->ret = &mono_defaults.void_class->byval_arg;
3498 sig->pinvoke = TRUE;
3499 sig->hasthis = TRUE;
3500 for (i = 0; i < class->rank; ++i)
3501 sig->params [i] = &mono_defaults.int32_class->byval_arg;
3503 amethod = create_array_method (class, ".ctor", sig);
3504 class->methods = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoMethod*) * class->method.count);
3505 class->methods [method_num++] = amethod;
3506 if (class->rank > 1) {
3507 sig = mono_metadata_signature_alloc (class->image, class->rank * 2);
3508 sig->ret = &mono_defaults.void_class->byval_arg;
3509 sig->pinvoke = TRUE;
3510 sig->hasthis = TRUE;
3511 for (i = 0; i < class->rank * 2; ++i)
3512 sig->params [i] = &mono_defaults.int32_class->byval_arg;
3514 amethod = create_array_method (class, ".ctor", sig);
3515 class->methods [method_num++] = amethod;
3517 /* element Get (idx11, [idx2, ...]) */
3518 sig = mono_metadata_signature_alloc (class->image, class->rank);
3519 sig->ret = &class->element_class->byval_arg;
3520 sig->pinvoke = TRUE;
3521 sig->hasthis = TRUE;
3522 for (i = 0; i < class->rank; ++i)
3523 sig->params [i] = &mono_defaults.int32_class->byval_arg;
3524 amethod = create_array_method (class, "Get", sig);
3525 class->methods [method_num++] = amethod;
3526 /* element& Address (idx11, [idx2, ...]) */
3527 sig = mono_metadata_signature_alloc (class->image, class->rank);
3528 sig->ret = &class->element_class->this_arg;
3529 sig->pinvoke = TRUE;
3530 sig->hasthis = TRUE;
3531 for (i = 0; i < class->rank; ++i)
3532 sig->params [i] = &mono_defaults.int32_class->byval_arg;
3533 amethod = create_array_method (class, "Address", sig);
3534 class->methods [method_num++] = amethod;
3535 /* void Set (idx11, [idx2, ...], element) */
3536 sig = mono_metadata_signature_alloc (class->image, class->rank + 1);
3537 sig->ret = &mono_defaults.void_class->byval_arg;
3538 sig->pinvoke = TRUE;
3539 sig->hasthis = TRUE;
3540 for (i = 0; i < class->rank; ++i)
3541 sig->params [i] = &mono_defaults.int32_class->byval_arg;
3542 sig->params [i] = &class->element_class->byval_arg;
3543 amethod = create_array_method (class, "Set", sig);
3544 class->methods [method_num++] = amethod;
3546 for (i = 0; i < class->interface_count; i++)
3547 setup_generic_array_ifaces (class, class->interfaces [i], first_generic + i * count_generic);
3550 mono_class_setup_supertypes (class);
3553 initialize_object_slots (class);
3556 * If possible, avoid the creation of the generic vtable by requesting
3557 * cached info from the runtime.
3559 if (has_cached_info) {
3560 guint32 cur_slot = 0;
3562 class->vtable_size = cached_info.vtable_size;
3563 class->has_finalize = cached_info.has_finalize;
3564 class->ghcimpl = cached_info.ghcimpl;
3565 class->has_cctor = cached_info.has_cctor;
3567 if (class->parent) {
3568 mono_class_init (class->parent);
3569 cur_slot = class->parent->vtable_size;
3572 setup_interface_offsets (class, cur_slot);
3575 mono_class_setup_vtable (class);
3577 if (class->exception_type || mono_loader_get_last_error ()){
3578 class_init_ok = FALSE;
3583 if (class->parent) {
3584 MonoMethod *cmethod = class->vtable [ghc_slot];
3585 if (cmethod->is_inflated)
3586 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3587 if (cmethod == default_ghc) {
3592 /* Object::Finalize should have empty implemenatation */
3593 class->has_finalize = 0;
3594 if (class->parent) {
3595 MonoMethod *cmethod = class->vtable [finalize_slot];
3596 if (cmethod->is_inflated)
3597 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
3598 if (cmethod != default_finalize) {
3599 class->has_finalize = 1;
3603 for (i = 0; i < class->method.count; ++i) {
3604 MonoMethod *method = class->methods [i];
3605 if ((method->flags & METHOD_ATTRIBUTE_SPECIAL_NAME) &&
3606 (strcmp (".cctor", method->name) == 0)) {
3607 class->has_cctor = 1;
3613 if (MONO_CLASS_IS_INTERFACE (class)) {
3615 * knowledge of interface offsets is needed for the castclass/isinst code, so
3616 * we have to setup them for interfaces, too.
3618 setup_interface_offsets (class, 0);
3623 class->init_pending = 0;
3625 if (mono_loader_get_last_error ()) {
3626 if (class->exception_type == MONO_EXCEPTION_NONE)
3627 set_failure_from_loader_error (class, mono_loader_get_last_error ());
3629 mono_loader_clear_error ();
3632 mono_loader_unlock ();
3634 if (mono_debugger_class_init_func)
3635 mono_debugger_class_init_func (class);
3637 return class_init_ok;
3641 is_corlib_image (MonoImage *image)
3643 /* FIXME: allow the dynamic case for our compilers and with full trust */
3645 return image->assembly && !strcmp (image->assembly->aname.name, "mscorlib");
3647 return image == mono_defaults.corlib;
3651 * LOCKING: this assumes the loader lock is held
3654 mono_class_setup_mono_type (MonoClass *class)
3656 const char *name = class->name;
3657 const char *nspace = class->name_space;
3658 gboolean is_corlib = is_corlib_image (class->image);
3660 class->this_arg.byref = 1;
3661 class->this_arg.data.klass = class;
3662 class->this_arg.type = MONO_TYPE_CLASS;
3663 class->byval_arg.data.klass = class;
3664 class->byval_arg.type = MONO_TYPE_CLASS;
3666 if (is_corlib && !strcmp (nspace, "System")) {
3667 if (!strcmp (name, "ValueType")) {
3669 * do not set the valuetype bit for System.ValueType.
3670 * class->valuetype = 1;
3672 class->blittable = TRUE;
3673 } else if (!strcmp (name, "Enum")) {
3675 * do not set the valuetype bit for System.Enum.
3676 * class->valuetype = 1;
3678 class->valuetype = 0;
3679 class->enumtype = 0;
3680 } else if (!strcmp (name, "Object")) {
3681 class->this_arg.type = class->byval_arg.type = MONO_TYPE_OBJECT;
3682 } else if (!strcmp (name, "String")) {
3683 class->this_arg.type = class->byval_arg.type = MONO_TYPE_STRING;
3684 } else if (!strcmp (name, "TypedReference")) {
3685 class->this_arg.type = class->byval_arg.type = MONO_TYPE_TYPEDBYREF;
3689 if (class->valuetype) {
3690 int t = MONO_TYPE_VALUETYPE;
3692 if (is_corlib && !strcmp (nspace, "System")) {
3695 if (!strcmp (name, "Boolean")) {
3696 t = MONO_TYPE_BOOLEAN;
3697 } else if (!strcmp(name, "Byte")) {
3699 class->blittable = TRUE;
3703 if (!strcmp (name, "Char")) {
3708 if (!strcmp (name, "Double")) {
3710 class->blittable = TRUE;
3714 if (!strcmp (name, "Int32")) {
3716 class->blittable = TRUE;
3717 } else if (!strcmp(name, "Int16")) {
3719 class->blittable = TRUE;
3720 } else if (!strcmp(name, "Int64")) {
3722 class->blittable = TRUE;
3723 } else if (!strcmp(name, "IntPtr")) {
3725 class->blittable = TRUE;
3729 if (!strcmp (name, "Single")) {
3731 class->blittable = TRUE;
3732 } else if (!strcmp(name, "SByte")) {
3734 class->blittable = TRUE;
3738 if (!strcmp (name, "UInt32")) {
3740 class->blittable = TRUE;
3741 } else if (!strcmp(name, "UInt16")) {
3743 class->blittable = TRUE;
3744 } else if (!strcmp(name, "UInt64")) {
3746 class->blittable = TRUE;
3747 } else if (!strcmp(name, "UIntPtr")) {
3749 class->blittable = TRUE;
3753 if (!strcmp (name, "TypedReference")) {
3754 t = MONO_TYPE_TYPEDBYREF;
3755 class->blittable = TRUE;
3759 if (!strcmp (name, "Void")) {
3767 class->this_arg.type = class->byval_arg.type = t;
3770 if (MONO_CLASS_IS_INTERFACE (class))
3771 class->interface_id = mono_get_unique_iid (class);
3776 * LOCKING: this assumes the loader lock is held
3779 mono_class_setup_parent (MonoClass *class, MonoClass *parent)
3781 gboolean system_namespace;
3782 gboolean is_corlib = is_corlib_image (class->image);
3784 system_namespace = !strcmp (class->name_space, "System") && is_corlib;
3786 /* if root of the hierarchy */
3787 if (system_namespace && !strcmp (class->name, "Object")) {
3788 class->parent = NULL;
3789 class->instance_size = sizeof (MonoObject);
3792 if (!strcmp (class->name, "<Module>")) {
3793 class->parent = NULL;
3794 class->instance_size = 0;
3798 if (!MONO_CLASS_IS_INTERFACE (class)) {
3799 /* Imported COM Objects always derive from __ComObject. */
3800 if (MONO_CLASS_IS_IMPORT (class)) {
3801 mono_init_com_types ();
3802 if (parent == mono_defaults.object_class)
3803 parent = mono_defaults.com_object_class;
3806 /* set the parent to something useful and safe, but mark the type as broken */
3807 parent = mono_defaults.object_class;
3808 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
3811 class->parent = parent;
3813 if (parent->generic_class && !parent->name) {
3815 * If the parent is a generic instance, we may get
3816 * called before it is fully initialized, especially
3817 * before it has its name.
3822 class->marshalbyref = parent->marshalbyref;
3823 class->contextbound = parent->contextbound;
3824 class->delegate = parent->delegate;
3825 if (MONO_CLASS_IS_IMPORT (class))
3826 class->is_com_object = 1;
3828 class->is_com_object = parent->is_com_object;
3830 if (system_namespace) {
3831 if (*class->name == 'M' && !strcmp (class->name, "MarshalByRefObject"))
3832 class->marshalbyref = 1;
3834 if (*class->name == 'C' && !strcmp (class->name, "ContextBoundObject"))
3835 class->contextbound = 1;
3837 if (*class->name == 'D' && !strcmp (class->name, "Delegate"))
3838 class->delegate = 1;
3841 if (class->parent->enumtype || (is_corlib_image (class->parent->image) && (strcmp (class->parent->name, "ValueType") == 0) &&
3842 (strcmp (class->parent->name_space, "System") == 0)))
3843 class->valuetype = 1;
3844 if (is_corlib_image (class->parent->image) && ((strcmp (class->parent->name, "Enum") == 0) && (strcmp (class->parent->name_space, "System") == 0))) {
3845 class->valuetype = class->enumtype = 1;
3847 /*class->enumtype = class->parent->enumtype; */
3848 mono_class_setup_supertypes (class);
3850 /* initialize com types if COM interfaces are present */
3851 if (MONO_CLASS_IS_IMPORT (class))
3852 mono_init_com_types ();
3853 class->parent = NULL;
3859 * mono_class_setup_supertypes:
3862 * Build the data structure needed to make fast type checks work.
3863 * This currently sets two fields in @class:
3864 * - idepth: distance between @class and System.Object in the type
3866 * - supertypes: array of classes: each element has a class in the hierarchy
3867 * starting from @class up to System.Object
3869 * LOCKING: this assumes the loader lock is held
3872 mono_class_setup_supertypes (MonoClass *class)
3876 if (class->supertypes)
3879 if (class->parent && !class->parent->supertypes)
3880 mono_class_setup_supertypes (class->parent);
3882 class->idepth = class->parent->idepth + 1;
3886 ms = MAX (MONO_DEFAULT_SUPERTABLE_SIZE, class->idepth);
3887 class->supertypes = mono_mempool_alloc0 (class->image->mempool, sizeof (MonoClass *) * ms);
3889 if (class->parent) {
3890 class->supertypes [class->idepth - 1] = class;
3891 memcpy (class->supertypes, class->parent->supertypes, class->parent->idepth * sizeof (gpointer));
3893 class->supertypes [0] = class;
3898 * mono_class_create_from_typedef:
3899 * @image: image where the token is valid
3900 * @type_token: typedef token
3902 * Create the MonoClass* representing the specified type token.
3903 * @type_token must be a TypeDef token.
3906 mono_class_create_from_typedef (MonoImage *image, guint32 type_token)
3908 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
3909 MonoClass *class, *parent = NULL;
3910 guint32 cols [MONO_TYPEDEF_SIZE];
3911 guint32 cols_next [MONO_TYPEDEF_SIZE];
3912 guint tidx = mono_metadata_token_index (type_token);
3913 MonoGenericContext *context = NULL;
3914 const char *name, *nspace;
3916 MonoClass **interfaces;
3917 guint32 field_last, method_last;
3918 guint32 nesting_tokeen;
3920 mono_loader_lock ();
3922 if ((class = mono_internal_hash_table_lookup (&image->class_cache, GUINT_TO_POINTER (type_token)))) {
3923 mono_loader_unlock ();
3927 g_assert (mono_metadata_token_table (type_token) == MONO_TABLE_TYPEDEF);
3929 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
3931 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
3932 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
3934 class = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
3937 class->name_space = nspace;
3939 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
3941 class->image = image;
3942 class->type_token = type_token;
3943 class->flags = cols [MONO_TYPEDEF_FLAGS];
3945 mono_internal_hash_table_insert (&image->class_cache, GUINT_TO_POINTER (type_token), class);
3948 * Check whether we're a generic type definition.
3950 class->generic_container = mono_metadata_load_generic_params (image, class->type_token, NULL);
3951 if (class->generic_container) {
3952 class->generic_container->owner.klass = class;
3953 context = &class->generic_container->context;
3956 if (cols [MONO_TYPEDEF_EXTENDS]) {
3957 parent = mono_class_get_full (
3958 image, mono_metadata_token_from_dor (cols [MONO_TYPEDEF_EXTENDS]), context);
3959 if (parent == NULL){
3960 mono_internal_hash_table_remove (&image->class_cache, GUINT_TO_POINTER (type_token));
3961 mono_loader_unlock ();
3962 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
3967 /* do this early so it's available for interfaces in setup_mono_type () */
3968 if ((nesting_tokeen = mono_metadata_nested_in_typedef (image, type_token)))
3969 class->nested_in = mono_class_create_from_typedef (image, nesting_tokeen);
3971 mono_class_setup_parent (class, parent);
3973 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
3974 mono_class_setup_mono_type (class);
3976 if (!class->enumtype) {
3977 if (!mono_metadata_interfaces_from_typedef_full (
3978 image, type_token, &interfaces, &icount, context)){
3979 mono_loader_unlock ();
3980 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED);
3984 class->interfaces = interfaces;
3985 class->interface_count = icount;
3988 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_UNICODE_CLASS)
3992 if ((class->flags & TYPE_ATTRIBUTE_STRING_FORMAT_MASK) == TYPE_ATTRIBUTE_AUTO_CLASS)
3996 class->cast_class = class->element_class = class;
3998 /*g_print ("Load class %s\n", name);*/
4001 * Compute the field and method lists
4003 class->field.first = cols [MONO_TYPEDEF_FIELD_LIST] - 1;
4004 class->method.first = cols [MONO_TYPEDEF_METHOD_LIST] - 1;
4006 if (tt->rows > tidx){
4007 mono_metadata_decode_row (tt, tidx, cols_next, MONO_TYPEDEF_SIZE);
4008 field_last = cols_next [MONO_TYPEDEF_FIELD_LIST] - 1;
4009 method_last = cols_next [MONO_TYPEDEF_METHOD_LIST] - 1;
4011 field_last = image->tables [MONO_TABLE_FIELD].rows;
4012 method_last = image->tables [MONO_TABLE_METHOD].rows;
4015 if (cols [MONO_TYPEDEF_FIELD_LIST] &&
4016 cols [MONO_TYPEDEF_FIELD_LIST] <= image->tables [MONO_TABLE_FIELD].rows)
4017 class->field.count = field_last - class->field.first;
4019 class->field.count = 0;
4021 if (cols [MONO_TYPEDEF_METHOD_LIST] <= image->tables [MONO_TABLE_METHOD].rows)
4022 class->method.count = method_last - class->method.first;
4024 class->method.count = 0;
4026 /* reserve space to store vector pointer in arrays */
4027 if (!strcmp (nspace, "System") && !strcmp (name, "Array")) {
4028 class->instance_size += 2 * sizeof (gpointer);
4029 g_assert (class->field.count == 0);
4032 if (class->enumtype) {
4033 class->enum_basetype = mono_class_find_enum_basetype (class);
4034 if (!class->enum_basetype) {
4035 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD, NULL);
4036 mono_loader_unlock ();
4039 class->cast_class = class->element_class = mono_class_from_mono_type (class->enum_basetype);
4043 * If we're a generic type definition, load the constraints.
4044 * We must do this after the class has been constructed to make certain recursive scenarios
4047 if (class->generic_container)
4048 mono_metadata_load_generic_param_constraints (
4049 image, type_token, class->generic_container);
4051 mono_loader_unlock ();
4053 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4058 /** is klass Nullable<T>? */
4060 mono_class_is_nullable (MonoClass *klass)
4062 return klass->generic_class != NULL &&
4063 klass->generic_class->container_class == mono_defaults.generic_nullable_class;
4067 /** if klass is T? return T */
4069 mono_class_get_nullable_param (MonoClass *klass)
4071 g_assert (mono_class_is_nullable (klass));
4072 return mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [0]);
4076 * Create the `MonoClass' for an instantiation of a generic type.
4077 * We only do this if we actually need it.
4080 mono_generic_class_get_class (MonoGenericClass *gclass)
4082 MonoClass *klass, *gklass;
4085 mono_loader_lock ();
4086 if (gclass->cached_class) {
4087 mono_loader_unlock ();
4088 return gclass->cached_class;
4091 gclass->cached_class = g_malloc0 (sizeof (MonoClass));
4092 klass = gclass->cached_class;
4094 gklass = gclass->container_class;
4096 if (gklass->nested_in) {
4098 * FIXME: the nested type context should include everything the
4099 * nesting context should have, but it may also have additional
4100 * generic parameters...
4102 MonoType *inflated = mono_class_inflate_generic_type (
4103 &gklass->nested_in->byval_arg, mono_generic_class_get_context (gclass));
4104 klass->nested_in = mono_class_from_mono_type (inflated);
4105 mono_metadata_free_type (inflated);
4108 klass->name = gklass->name;
4109 klass->name_space = gklass->name_space;
4111 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4113 klass->image = gklass->image;
4114 klass->flags = gklass->flags;
4115 klass->type_token = gklass->type_token;
4116 klass->field.count = gklass->field.count;
4117 klass->property.count = gklass->property.count;
4119 klass->generic_class = gclass;
4121 klass->this_arg.type = klass->byval_arg.type = MONO_TYPE_GENERICINST;
4122 klass->this_arg.data.generic_class = klass->byval_arg.data.generic_class = gclass;
4123 klass->this_arg.byref = TRUE;
4124 klass->enumtype = gklass->enumtype;
4125 klass->valuetype = gklass->valuetype;
4127 klass->cast_class = klass->element_class = klass;
4129 if (mono_class_is_nullable (klass))
4130 klass->cast_class = klass->element_class = mono_class_get_nullable_param (klass);
4132 klass->interface_count = gklass->interface_count;
4133 klass->interfaces = g_new0 (MonoClass *, klass->interface_count);
4134 for (i = 0; i < klass->interface_count; i++) {
4135 MonoType *it = &gklass->interfaces [i]->byval_arg;
4136 MonoType *inflated = mono_class_inflate_generic_type (it, mono_generic_class_get_context (gclass));
4137 klass->interfaces [i] = mono_class_from_mono_type (inflated);
4138 mono_metadata_free_type (inflated);
4142 * We're not interested in the nested classes of a generic instance.
4143 * We use the generic type definition to look for nested classes.
4145 klass->nested_classes = NULL;
4147 if (gklass->parent) {
4148 MonoType *inflated = mono_class_inflate_generic_type (
4149 &gklass->parent->byval_arg, mono_generic_class_get_context (gclass));
4151 klass->parent = mono_class_from_mono_type (inflated);
4152 mono_metadata_free_type (inflated);
4156 mono_class_setup_parent (klass, klass->parent);
4158 if (klass->enumtype) {
4159 klass->enum_basetype = gklass->enum_basetype;
4160 klass->cast_class = gklass->cast_class;
4163 if (gclass->is_dynamic) {
4166 mono_class_setup_supertypes (klass);
4168 if (klass->enumtype) {
4170 * For enums, gklass->fields might not been set, but instance_size etc. is
4171 * already set in mono_reflection_create_internal_class (). For non-enums,
4172 * these will be computed normally in mono_class_layout_fields ().
4174 klass->instance_size = gklass->instance_size;
4175 klass->sizes.class_size = gklass->sizes.class_size;
4176 klass->size_inited = 1;
4180 if (MONO_CLASS_IS_INTERFACE (klass))
4181 setup_interface_offsets (klass, 0);
4183 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4185 mono_loader_unlock ();
4191 mono_class_from_generic_parameter (MonoGenericParam *param, MonoImage *image, gboolean is_mvar)
4193 MonoClass *klass, **ptr;
4196 mono_loader_lock ();
4198 if (param->pklass) {
4199 mono_loader_unlock ();
4200 return param->pklass;
4203 if (!image && param->owner) {
4205 MonoMethod *method = param->owner->owner.method;
4206 image = (method && method->klass) ? method->klass->image : NULL;
4208 MonoClass *klass = param->owner->owner.klass;
4209 // FIXME: 'klass' should not be null
4210 // But, monodis creates GenericContainers without associating a owner to it
4211 image = klass ? klass->image : NULL;
4216 image = mono_defaults.corlib;
4218 klass = param->pklass = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
4221 klass->name = param->name;
4223 klass->name = mono_mempool_alloc0 (image->mempool, 16);
4224 sprintf ((char*)klass->name, is_mvar ? "!!%d" : "!%d", param->num);
4226 klass->name_space = "";
4227 mono_profiler_class_event (klass, MONO_PROFILE_START_LOAD);
4229 for (count = 0, ptr = param->constraints; ptr && *ptr; ptr++, count++)
4233 if ((count > 0) && !MONO_CLASS_IS_INTERFACE (param->constraints [0])) {
4234 klass->parent = param->constraints [0];
4236 } else if (param->flags & GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT)
4237 klass->parent = mono_class_from_name (mono_defaults.corlib, "System", "ValueType");
4239 klass->parent = mono_defaults.object_class;
4241 if (count - pos > 0) {
4242 klass->interface_count = count - pos;
4243 klass->interfaces = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass *) * (count - pos));
4244 for (i = pos; i < count; i++)
4245 klass->interfaces [i - pos] = param->constraints [i];
4249 image = mono_defaults.corlib;
4251 klass->image = image;
4253 klass->inited = TRUE;
4254 klass->cast_class = klass->element_class = klass;
4255 klass->enum_basetype = &klass->element_class->byval_arg;
4256 klass->flags = TYPE_ATTRIBUTE_PUBLIC;
4258 klass->this_arg.type = klass->byval_arg.type = is_mvar ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4259 klass->this_arg.data.generic_param = klass->byval_arg.data.generic_param = param;
4260 klass->this_arg.byref = TRUE;
4262 mono_class_setup_supertypes (klass);
4264 mono_loader_unlock ();
4266 mono_profiler_class_loaded (klass, MONO_PROFILE_OK);
4272 mono_ptr_class_get (MonoType *type)
4275 MonoClass *el_class;
4279 el_class = mono_class_from_mono_type (type);
4280 image = el_class->image;
4282 mono_loader_lock ();
4284 if (!image->ptr_cache)
4285 image->ptr_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4287 if ((result = g_hash_table_lookup (image->ptr_cache, el_class))) {
4288 mono_loader_unlock ();
4291 result = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
4293 result->parent = NULL; /* no parent for PTR types */
4294 result->name_space = el_class->name_space;
4295 name = g_strdup_printf ("%s*", el_class->name);
4296 result->name = mono_mempool_strdup (image->mempool, name);
4299 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4301 result->image = el_class->image;
4302 result->inited = TRUE;
4303 result->flags = TYPE_ATTRIBUTE_CLASS | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4304 /* Can pointers get boxed? */
4305 result->instance_size = sizeof (gpointer);
4306 result->cast_class = result->element_class = el_class;
4307 result->enum_basetype = &result->element_class->byval_arg;
4308 result->blittable = TRUE;
4310 result->this_arg.type = result->byval_arg.type = MONO_TYPE_PTR;
4311 result->this_arg.data.type = result->byval_arg.data.type = result->enum_basetype;
4312 result->this_arg.byref = TRUE;
4314 mono_class_setup_supertypes (result);
4316 g_hash_table_insert (image->ptr_cache, el_class, result);
4318 mono_loader_unlock ();
4320 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4326 mono_fnptr_class_get (MonoMethodSignature *sig)
4329 static GHashTable *ptr_hash = NULL;
4331 /* FIXME: These should be allocate from a mempool as well, but which one ? */
4333 mono_loader_lock ();
4336 ptr_hash = g_hash_table_new (mono_aligned_addr_hash, NULL);
4338 if ((result = g_hash_table_lookup (ptr_hash, sig))) {
4339 mono_loader_unlock ();
4342 result = g_new0 (MonoClass, 1);
4344 result->parent = NULL; /* no parent for PTR types */
4345 result->name_space = "System";
4346 result->name = "MonoFNPtrFakeClass";
4348 mono_profiler_class_event (result, MONO_PROFILE_START_LOAD);
4350 result->image = mono_defaults.corlib; /* need to fix... */
4351 result->inited = TRUE;
4352 result->flags = TYPE_ATTRIBUTE_CLASS; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
4353 /* Can pointers get boxed? */
4354 result->instance_size = sizeof (gpointer);
4355 result->cast_class = result->element_class = result;
4356 result->blittable = TRUE;
4358 result->this_arg.type = result->byval_arg.type = MONO_TYPE_FNPTR;
4359 result->this_arg.data.method = result->byval_arg.data.method = sig;
4360 result->this_arg.byref = TRUE;
4361 result->enum_basetype = &result->element_class->byval_arg;
4362 result->blittable = TRUE;
4364 mono_class_setup_supertypes (result);
4366 g_hash_table_insert (ptr_hash, sig, result);
4368 mono_loader_unlock ();
4370 mono_profiler_class_loaded (result, MONO_PROFILE_OK);
4376 mono_class_from_mono_type (MonoType *type)
4378 switch (type->type) {
4379 case MONO_TYPE_OBJECT:
4380 return type->data.klass? type->data.klass: mono_defaults.object_class;
4381 case MONO_TYPE_VOID:
4382 return type->data.klass? type->data.klass: mono_defaults.void_class;
4383 case MONO_TYPE_BOOLEAN:
4384 return type->data.klass? type->data.klass: mono_defaults.boolean_class;
4385 case MONO_TYPE_CHAR:
4386 return type->data.klass? type->data.klass: mono_defaults.char_class;
4388 return type->data.klass? type->data.klass: mono_defaults.sbyte_class;
4390 return type->data.klass? type->data.klass: mono_defaults.byte_class;
4392 return type->data.klass? type->data.klass: mono_defaults.int16_class;
4394 return type->data.klass? type->data.klass: mono_defaults.uint16_class;
4396 return type->data.klass? type->data.klass: mono_defaults.int32_class;
4398 return type->data.klass? type->data.klass: mono_defaults.uint32_class;
4400 return type->data.klass? type->data.klass: mono_defaults.int_class;
4402 return type->data.klass? type->data.klass: mono_defaults.uint_class;
4404 return type->data.klass? type->data.klass: mono_defaults.int64_class;
4406 return type->data.klass? type->data.klass: mono_defaults.uint64_class;
4408 return type->data.klass? type->data.klass: mono_defaults.single_class;
4410 return type->data.klass? type->data.klass: mono_defaults.double_class;
4411 case MONO_TYPE_STRING:
4412 return type->data.klass? type->data.klass: mono_defaults.string_class;
4413 case MONO_TYPE_TYPEDBYREF:
4414 return type->data.klass? type->data.klass: mono_defaults.typed_reference_class;
4415 case MONO_TYPE_ARRAY:
4416 return mono_bounded_array_class_get (type->data.array->eklass, type->data.array->rank, TRUE);
4418 return mono_ptr_class_get (type->data.type);
4419 case MONO_TYPE_FNPTR:
4420 return mono_fnptr_class_get (type->data.method);
4421 case MONO_TYPE_SZARRAY:
4422 return mono_array_class_get (type->data.klass, 1);
4423 case MONO_TYPE_CLASS:
4424 case MONO_TYPE_VALUETYPE:
4425 return type->data.klass;
4426 case MONO_TYPE_GENERICINST:
4427 return mono_generic_class_get_class (type->data.generic_class);
4429 return mono_class_from_generic_parameter (type->data.generic_param, NULL, FALSE);
4430 case MONO_TYPE_MVAR:
4431 return mono_class_from_generic_parameter (type->data.generic_param, NULL, TRUE);
4433 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type->type);
4434 g_assert_not_reached ();
4441 * mono_type_retrieve_from_typespec
4442 * @image: context where the image is created
4443 * @type_spec: typespec token
4444 * @context: the generic context used to evaluate generic instantiations in
4447 mono_type_retrieve_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
4449 MonoType *t = mono_type_create_from_typespec (image, type_spec);
4452 if (context && (context->class_inst || context->method_inst)) {
4453 MonoType *inflated = inflate_generic_type (t, context);
4461 * mono_class_create_from_typespec
4462 * @image: context where the image is created
4463 * @type_spec: typespec token
4464 * @context: the generic context used to evaluate generic instantiations in
4467 mono_class_create_from_typespec (MonoImage *image, guint32 type_spec, MonoGenericContext *context)
4469 MonoType *t = mono_type_retrieve_from_typespec (image, type_spec, context);
4472 return mono_class_from_mono_type (t);
4476 * mono_bounded_array_class_get:
4477 * @element_class: element class
4478 * @rank: the dimension of the array class
4479 * @bounded: whenever the array has non-zero bounds
4481 * Returns: a class object describing the array with element type @element_type and
4485 mono_bounded_array_class_get (MonoClass *eclass, guint32 rank, gboolean bounded)
4489 MonoClass *parent = NULL;
4490 GSList *list, *rootlist;
4493 gboolean corlib_type = FALSE;
4495 g_assert (rank <= 255);
4498 /* bounded only matters for one-dimensional arrays */
4501 image = eclass->image;
4503 mono_loader_lock ();
4505 if (!image->array_cache)
4506 image->array_cache = g_hash_table_new (mono_aligned_addr_hash, NULL);
4508 if ((rootlist = list = g_hash_table_lookup (image->array_cache, eclass))) {
4509 for (; list; list = list->next) {
4511 if ((class->rank == rank) && (class->byval_arg.type == (((rank > 1) || bounded) ? MONO_TYPE_ARRAY : MONO_TYPE_SZARRAY))) {
4512 mono_loader_unlock ();
4518 /* for the building corlib use System.Array from it */
4519 if (image->assembly && image->assembly->dynamic && image->assembly_name && strcmp (image->assembly_name, "mscorlib") == 0) {
4520 parent = mono_class_from_name (image, "System", "Array");
4523 parent = mono_defaults.array_class;
4524 if (!parent->inited)
4525 mono_class_init (parent);
4528 class = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass));
4530 class->image = image;
4531 class->name_space = eclass->name_space;
4532 nsize = strlen (eclass->name);
4533 name = g_malloc (nsize + 2 + rank);
4534 memcpy (name, eclass->name, nsize);
4537 memset (name + nsize + 1, ',', rank - 1);
4538 name [nsize + rank] = ']';
4539 name [nsize + rank + 1] = 0;
4540 class->name = mono_mempool_strdup (image->mempool, name);
4543 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD);
4545 class->type_token = 0;
4546 /* all arrays are marked serializable and sealed, bug #42779 */
4547 class->flags = TYPE_ATTRIBUTE_CLASS | TYPE_ATTRIBUTE_SERIALIZABLE | TYPE_ATTRIBUTE_SEALED |
4548 (eclass->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK);
4549 class->parent = parent;
4550 class->instance_size = mono_class_instance_size (class->parent);
4552 if (eclass->enumtype && !eclass->enum_basetype) {
4553 if (!eclass->reflection_info || eclass->wastypebuilder) {
4554 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
4555 g_assert (eclass->reflection_info && !eclass->wastypebuilder);
4557 /* element_size -1 is ok as this is not an instantitable type*/
4558 class->sizes.element_size = -1;
4560 class->sizes.element_size = mono_class_array_element_size (eclass);
4562 mono_class_setup_supertypes (class);
4564 if (mono_defaults.generic_ilist_class && !bounded && rank == 1) {
4567 /* generic IList, ICollection, IEnumerable */
4568 class->interface_count = 1;
4569 class->interfaces = mono_mempool_alloc0 (image->mempool, sizeof (MonoClass*) * class->interface_count);
4571 args [0] = &eclass->byval_arg;
4572 class->interfaces [0] = mono_class_bind_generic_parameters (
4573 mono_defaults.generic_ilist_class, 1, args, FALSE);
4576 if (eclass->generic_class)
4577 mono_class_init (eclass);
4578 if (!eclass->size_inited)
4579 mono_class_setup_fields (eclass);
4580 class->has_references = MONO_TYPE_IS_REFERENCE (&eclass->byval_arg) || eclass->has_references? TRUE: FALSE;
4584 if (eclass->enumtype)
4585 class->cast_class = eclass->element_class;
4587 class->cast_class = eclass;
4589 class->element_class = eclass;
4591 if ((rank > 1) || bounded) {
4592 MonoArrayType *at = mono_mempool_alloc0 (image->mempool, sizeof (MonoArrayType));
4593 class->byval_arg.type = MONO_TYPE_ARRAY;
4594 class->byval_arg.data.array = at;
4595 at->eklass = eclass;
4597 /* FIXME: complete.... */
4599 class->byval_arg.type = MONO_TYPE_SZARRAY;
4600 class->byval_arg.data.klass = eclass;
4602 class->this_arg = class->byval_arg;
4603 class->this_arg.byref = 1;
4608 class->generic_container = eclass->generic_container;
4610 list = g_slist_append (rootlist, class);
4611 g_hash_table_insert (image->array_cache, eclass, list);
4613 mono_loader_unlock ();
4615 mono_profiler_class_loaded (class, MONO_PROFILE_OK);
4621 * mono_array_class_get:
4622 * @element_class: element class
4623 * @rank: the dimension of the array class
4625 * Returns: a class object describing the array with element type @element_type and
4629 mono_array_class_get (MonoClass *eclass, guint32 rank)
4631 return mono_bounded_array_class_get (eclass, rank, FALSE);
4635 * mono_class_instance_size:
4638 * Returns: the size of an object instance
4641 mono_class_instance_size (MonoClass *klass)
4643 if (!klass->size_inited)
4644 mono_class_init (klass);
4646 return klass->instance_size;
4650 * mono_class_min_align:
4653 * Returns: minimm alignment requirements
4656 mono_class_min_align (MonoClass *klass)
4658 if (!klass->size_inited)
4659 mono_class_init (klass);
4661 return klass->min_align;
4665 * mono_class_value_size:
4668 * This function is used for value types, and return the
4669 * space and the alignment to store that kind of value object.
4671 * Returns: the size of a value of kind @klass
4674 mono_class_value_size (MonoClass *klass, guint32 *align)
4678 /* fixme: check disable, because we still have external revereces to
4679 * mscorlib and Dummy Objects
4681 /*g_assert (klass->valuetype);*/
4683 size = mono_class_instance_size (klass) - sizeof (MonoObject);
4686 *align = klass->min_align;
4692 * mono_class_data_size:
4695 * Returns: the size of the static class data
4698 mono_class_data_size (MonoClass *klass)
4701 mono_class_init (klass);
4703 /* in arrays, sizes.class_size is unioned with element_size
4704 * and arrays have no static fields
4708 return klass->sizes.class_size;
4712 * Auxiliary routine to mono_class_get_field
4714 * Takes a field index instead of a field token.
4716 static MonoClassField *
4717 mono_class_get_field_idx (MonoClass *class, int idx)
4719 mono_class_setup_fields_locking (class);
4722 if (class->image->uncompressed_metadata) {
4724 * class->field.first points to the FieldPtr table, while idx points into the
4725 * Field table, so we have to do a search.
4727 const char *name = mono_metadata_string_heap (class->image, mono_metadata_decode_row_col (&class->image->tables [MONO_TABLE_FIELD], idx, MONO_FIELD_NAME));
4730 for (i = 0; i < class->field.count; ++i)
4731 if (class->fields [i].name == name)
4732 return &class->fields [i];
4733 g_assert_not_reached ();
4735 if (class->field.count) {
4736 if ((idx >= class->field.first) && (idx < class->field.first + class->field.count)){
4737 return &class->fields [idx - class->field.first];
4741 class = class->parent;
4747 * mono_class_get_field:
4748 * @class: the class to lookup the field.
4749 * @field_token: the field token
4751 * Returns: A MonoClassField representing the type and offset of
4752 * the field, or a NULL value if the field does not belong to this
4756 mono_class_get_field (MonoClass *class, guint32 field_token)
4758 int idx = mono_metadata_token_index (field_token);
4760 g_assert (mono_metadata_token_code (field_token) == MONO_TOKEN_FIELD_DEF);
4762 return mono_class_get_field_idx (class, idx - 1);
4766 * mono_class_get_field_from_name:
4767 * @klass: the class to lookup the field.
4768 * @name: the field name
4770 * Search the class @klass and it's parents for a field with the name @name.
4772 * Returns: the MonoClassField pointer of the named field or NULL
4775 mono_class_get_field_from_name (MonoClass *klass, const char *name)
4779 mono_class_setup_fields_locking (klass);
4781 for (i = 0; i < klass->field.count; ++i) {
4782 if (strcmp (name, klass->fields [i].name) == 0)
4783 return &klass->fields [i];
4785 klass = klass->parent;
4791 * mono_class_get_field_token:
4792 * @field: the field we need the token of
4794 * Get the token of a field. Note that the tokesn is only valid for the image
4795 * the field was loaded from. Don't use this function for fields in dynamic types.
4797 * Returns: the token representing the field in the image it was loaded from.
4800 mono_class_get_field_token (MonoClassField *field)
4802 MonoClass *klass = field->parent;
4805 mono_class_setup_fields_locking (klass);
4807 for (i = 0; i < klass->field.count; ++i) {
4808 if (&klass->fields [i] == field) {
4809 int idx = klass->field.first + i + 1;
4811 if (klass->image->uncompressed_metadata)
4812 idx = mono_metadata_translate_token_index (klass->image, MONO_TABLE_FIELD, idx);
4813 return mono_metadata_make_token (MONO_TABLE_FIELD, idx);
4816 klass = klass->parent;
4819 g_assert_not_reached ();
4824 * mono_class_get_field_default_value:
4826 * Return the default value of the field as a pointer into the metadata blob.
4829 mono_class_get_field_default_value (MonoClassField *field, MonoTypeEnum *def_type)
4832 guint32 constant_cols [MONO_CONSTANT_SIZE];
4834 g_assert (field->type->attrs & FIELD_ATTRIBUTE_HAS_DEFAULT);
4837 cindex = mono_metadata_get_constant_index (field->parent->image, mono_class_get_field_token (field), cindex + 1);
4839 g_assert (!(field->type->attrs & FIELD_ATTRIBUTE_HAS_FIELD_RVA));
4841 mono_metadata_decode_row (&field->parent->image->tables [MONO_TABLE_CONSTANT], cindex - 1, constant_cols, MONO_CONSTANT_SIZE);
4842 field->def_type = constant_cols [MONO_CONSTANT_TYPE];
4843 field->data = (gpointer)mono_metadata_blob_heap (field->parent->image, constant_cols [MONO_CONSTANT_VALUE]);
4846 *def_type = field->def_type;
4851 mono_class_get_event_token (MonoEvent *event)
4853 MonoClass *klass = event->parent;
4857 for (i = 0; i < klass->event.count; ++i) {
4858 if (&klass->events [i] == event)
4859 return mono_metadata_make_token (MONO_TABLE_EVENT, klass->event.first + i + 1);
4861 klass = klass->parent;
4864 g_assert_not_reached ();
4869 mono_class_get_property_from_name (MonoClass *klass, const char *name)
4873 gpointer iter = NULL;
4874 while ((p = mono_class_get_properties (klass, &iter))) {
4875 if (! strcmp (name, p->name))
4878 klass = klass->parent;
4884 mono_class_get_property_token (MonoProperty *prop)
4886 MonoClass *klass = prop->parent;
4890 gpointer iter = NULL;
4891 while ((p = mono_class_get_properties (klass, &iter))) {
4892 if (&klass->properties [i] == prop)
4893 return mono_metadata_make_token (MONO_TABLE_PROPERTY, klass->property.first + i + 1);
4897 klass = klass->parent;
4900 g_assert_not_reached ();
4905 mono_class_name_from_token (MonoImage *image, guint32 type_token)
4907 const char *name, *nspace;
4909 return g_strdup_printf ("DynamicType 0x%08x", type_token);
4911 switch (type_token & 0xff000000){
4912 case MONO_TOKEN_TYPE_DEF: {
4913 guint32 cols [MONO_TYPEDEF_SIZE];
4914 MonoTableInfo *tt = &image->tables [MONO_TABLE_TYPEDEF];
4915 guint tidx = mono_metadata_token_index (type_token);
4917 mono_metadata_decode_row (tt, tidx - 1, cols, MONO_TYPEDEF_SIZE);
4918 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
4919 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
4920 if (strlen (nspace) == 0)
4921 return g_strdup_printf ("%s", name);
4923 return g_strdup_printf ("%s.%s", nspace, name);
4926 case MONO_TOKEN_TYPE_REF: {
4927 guint32 cols [MONO_TYPEREF_SIZE];
4928 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
4930 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
4931 name = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAME]);
4932 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEREF_NAMESPACE]);
4933 if (strlen (nspace) == 0)
4934 return g_strdup_printf ("%s", name);
4936 return g_strdup_printf ("%s.%s", nspace, name);
4939 case MONO_TOKEN_TYPE_SPEC:
4940 return g_strdup_printf ("Typespec 0x%08x", type_token);
4942 g_assert_not_reached ();
4949 mono_assembly_name_from_token (MonoImage *image, guint32 type_token)
4952 return g_strdup_printf ("DynamicAssembly %s", image->name);
4954 switch (type_token & 0xff000000){
4955 case MONO_TOKEN_TYPE_DEF:
4956 return mono_stringify_assembly_name (&image->assembly->aname);
4958 case MONO_TOKEN_TYPE_REF: {
4959 MonoAssemblyName aname;
4960 guint32 cols [MONO_TYPEREF_SIZE];
4961 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEREF];
4964 mono_metadata_decode_row (t, (type_token&0xffffff)-1, cols, MONO_TYPEREF_SIZE);
4966 idx = cols [MONO_TYPEREF_SCOPE] >> MONO_RESOLTION_SCOPE_BITS;
4967 switch (cols [MONO_TYPEREF_SCOPE] & MONO_RESOLTION_SCOPE_MASK) {
4968 case MONO_RESOLTION_SCOPE_MODULE:
4970 return g_strdup ("");
4971 case MONO_RESOLTION_SCOPE_MODULEREF:
4973 return g_strdup ("");
4974 case MONO_RESOLTION_SCOPE_TYPEREF:
4976 return g_strdup ("");
4977 case MONO_RESOLTION_SCOPE_ASSEMBLYREF:
4978 mono_assembly_get_assemblyref (image, idx - 1, &aname);
4979 return mono_stringify_assembly_name (&aname);
4981 g_assert_not_reached ();
4985 case MONO_TOKEN_TYPE_SPEC:
4987 return g_strdup ("");
4989 g_assert_not_reached ();
4996 * mono_class_get_full:
4997 * @image: the image where the class resides
4998 * @type_token: the token for the class
4999 * @context: the generic context used to evaluate generic instantiations in
5001 * Returns: the MonoClass that represents @type_token in @image
5004 mono_class_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5006 MonoClass *class = NULL;
5008 if (image->dynamic) {
5009 int table = mono_metadata_token_table (type_token);
5011 if (table != MONO_TABLE_TYPEDEF && table != MONO_TABLE_TYPEREF && table != MONO_TABLE_TYPESPEC) {
5012 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
5015 return mono_lookup_dynamic_token (image, type_token, context);
5018 switch (type_token & 0xff000000){
5019 case MONO_TOKEN_TYPE_DEF:
5020 class = mono_class_create_from_typedef (image, type_token);
5022 case MONO_TOKEN_TYPE_REF:
5023 class = mono_class_from_typeref (image, type_token);
5025 case MONO_TOKEN_TYPE_SPEC:
5026 class = mono_class_create_from_typespec (image, type_token, context);
5029 g_warning ("unknown token type %x", type_token & 0xff000000);
5030 g_assert_not_reached ();
5034 char *name = mono_class_name_from_token (image, type_token);
5035 char *assembly = mono_assembly_name_from_token (image, type_token);
5036 mono_loader_set_error_type_load (name, assembly);
5044 * mono_type_get_full:
5045 * @image: the image where the type resides
5046 * @type_token: the token for the type
5047 * @context: the generic context used to evaluate generic instantiations in
5049 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
5051 * Returns: the MonoType that represents @type_token in @image
5054 mono_type_get_full (MonoImage *image, guint32 type_token, MonoGenericContext *context)
5056 MonoType *type = NULL;
5058 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
5060 return mono_class_get_type (mono_lookup_dynamic_token (image, type_token, context));
5062 if ((type_token & 0xff000000) != MONO_TOKEN_TYPE_SPEC) {
5063 MonoClass *class = mono_class_get_full (image, type_token, context);
5064 return class ? mono_class_get_type (class) : NULL;
5067 type = mono_type_retrieve_from_typespec (image, type_token, context);
5070 char *name = mono_class_name_from_token (image, type_token);
5071 char *assembly = mono_assembly_name_from_token (image, type_token);
5072 mono_loader_set_error_type_load (name, assembly);
5080 mono_class_get (MonoImage *image, guint32 type_token)
5082 return mono_class_get_full (image, type_token, NULL);
5086 * mono_image_init_name_cache:
5088 * Initializes the class name cache stored in image->name_cache.
5090 * LOCKING: Acquires the loader lock.
5093 mono_image_init_name_cache (MonoImage *image)
5095 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5096 guint32 cols [MONO_TYPEDEF_SIZE];
5099 guint32 i, visib, nspace_index;
5100 GHashTable *name_cache2, *nspace_table;
5102 mono_loader_lock ();
5104 image->name_cache = g_hash_table_new (g_str_hash, g_str_equal);
5106 if (image->dynamic) {
5107 mono_loader_unlock ();
5111 /* Temporary hash table to avoid lookups in the nspace_table */
5112 name_cache2 = g_hash_table_new (NULL, NULL);
5114 for (i = 1; i <= t->rows; ++i) {
5115 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5116 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5118 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5119 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5121 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5123 name = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5124 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5126 nspace_index = cols [MONO_TYPEDEF_NAMESPACE];
5127 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5128 if (!nspace_table) {
5129 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5130 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5131 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5134 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (i));
5137 /* Load type names from EXPORTEDTYPES table */
5139 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5140 guint32 cols [MONO_EXP_TYPE_SIZE];
5143 for (i = 0; i < t->rows; ++i) {
5144 mono_metadata_decode_row (t, i, cols, MONO_EXP_TYPE_SIZE);
5145 name = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAME]);
5146 nspace = mono_metadata_string_heap (image, cols [MONO_EXP_TYPE_NAMESPACE]);
5148 nspace_index = cols [MONO_EXP_TYPE_NAMESPACE];
5149 nspace_table = g_hash_table_lookup (name_cache2, GUINT_TO_POINTER (nspace_index));
5150 if (!nspace_table) {
5151 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5152 g_hash_table_insert (image->name_cache, (char*)nspace, nspace_table);
5153 g_hash_table_insert (name_cache2, GUINT_TO_POINTER (nspace_index),
5156 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE, i + 1)));
5160 g_hash_table_destroy (name_cache2);
5162 mono_loader_unlock ();
5166 mono_image_add_to_name_cache (MonoImage *image, const char *nspace,
5167 const char *name, guint32 index)
5169 GHashTable *nspace_table;
5170 GHashTable *name_cache;
5172 mono_loader_lock ();
5174 if (!image->name_cache)
5175 mono_image_init_name_cache (image);
5177 name_cache = image->name_cache;
5178 if (!(nspace_table = g_hash_table_lookup (name_cache, nspace))) {
5179 nspace_table = g_hash_table_new (g_str_hash, g_str_equal);
5180 g_hash_table_insert (name_cache, (char *)nspace, (char *)nspace_table);
5182 g_hash_table_insert (nspace_table, (char *) name, GUINT_TO_POINTER (index));
5184 mono_loader_unlock ();
5193 find_nocase (gpointer key, gpointer value, gpointer user_data)
5195 char *name = (char*)key;
5196 FindUserData *data = (FindUserData*)user_data;
5198 if (!data->value && (g_strcasecmp (name, (char*)data->key) == 0))
5199 data->value = value;
5203 * mono_class_from_name_case:
5204 * @image: The MonoImage where the type is looked up in
5205 * @name_space: the type namespace
5206 * @name: the type short name.
5208 * Obtains a MonoClass with a given namespace and a given name which
5209 * is located in the given MonoImage. The namespace and name
5210 * lookups are case insensitive.
5213 mono_class_from_name_case (MonoImage *image, const char* name_space, const char *name)
5215 MonoTableInfo *t = &image->tables [MONO_TABLE_TYPEDEF];
5216 guint32 cols [MONO_TYPEDEF_SIZE];
5221 if (image->dynamic) {
5223 FindUserData user_data;
5225 mono_loader_lock ();
5227 if (!image->name_cache)
5228 mono_image_init_name_cache (image);
5230 user_data.key = name_space;
5231 user_data.value = NULL;
5232 g_hash_table_foreach (image->name_cache, find_nocase, &user_data);
5234 if (user_data.value) {
5235 GHashTable *nspace_table = (GHashTable*)user_data.value;
5237 user_data.key = name;
5238 user_data.value = NULL;
5240 g_hash_table_foreach (nspace_table, find_nocase, &user_data);
5242 if (user_data.value)
5243 token = GPOINTER_TO_UINT (user_data.value);
5246 mono_loader_unlock ();
5249 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | token);
5255 /* add a cache if needed */
5256 for (i = 1; i <= t->rows; ++i) {
5257 mono_metadata_decode_row (t, i - 1, cols, MONO_TYPEDEF_SIZE);
5258 visib = cols [MONO_TYPEDEF_FLAGS] & TYPE_ATTRIBUTE_VISIBILITY_MASK;
5260 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
5261 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
5263 if (visib >= TYPE_ATTRIBUTE_NESTED_PUBLIC && visib <= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM)
5265 n = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAME]);
5266 nspace = mono_metadata_string_heap (image, cols [MONO_TYPEDEF_NAMESPACE]);
5267 if (g_strcasecmp (n, name) == 0 && g_strcasecmp (nspace, name_space) == 0)
5268 return mono_class_get (image, MONO_TOKEN_TYPE_DEF | i);
5274 return_nested_in (MonoClass *class, char *nested) {
5276 char *s = strchr (nested, '/');
5283 for (tmp = class->nested_classes; tmp; tmp = tmp->next) {
5285 if (strcmp (found->name, nested) == 0) {
5287 return return_nested_in (found, s);
5296 * mono_class_from_name:
5297 * @image: The MonoImage where the type is looked up in
5298 * @name_space: the type namespace
5299 * @name: the type short name.
5301 * Obtains a MonoClass with a given namespace and a given name which
5302 * is located in the given MonoImage.
5305 mono_class_from_name (MonoImage *image, const char* name_space, const char *name)
5307 GHashTable *nspace_table;
5308 MonoImage *loaded_image;
5315 if ((nested = strchr (name, '/'))) {
5316 int pos = nested - name;
5317 int len = strlen (name);
5320 memcpy (buf, name, len + 1);
5322 nested = buf + pos + 1;
5326 if (get_class_from_name) {
5327 gboolean res = get_class_from_name (image, name_space, name, &class);
5330 return class ? return_nested_in (class, nested) : NULL;
5336 mono_loader_lock ();
5338 if (!image->name_cache)
5339 mono_image_init_name_cache (image);
5341 nspace_table = g_hash_table_lookup (image->name_cache, name_space);
5344 token = GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table, name));
5346 mono_loader_unlock ();
5348 if (!token && image->dynamic && image->modules) {
5349 /* Search modules as well */
5350 for (i = 0; i < image->module_count; ++i) {
5351 MonoImage *module = image->modules [i];
5353 class = mono_class_from_name (module, name_space, name);
5362 if (mono_metadata_token_table (token) == MONO_TABLE_EXPORTEDTYPE) {
5363 MonoTableInfo *t = &image->tables [MONO_TABLE_EXPORTEDTYPE];
5364 guint32 cols [MONO_EXP_TYPE_SIZE];
5367 idx = mono_metadata_token_index (token);
5369 mono_metadata_decode_row (t, idx - 1, cols, MONO_EXP_TYPE_SIZE);
5371 impl = cols [MONO_EXP_TYPE_IMPLEMENTATION];
5372 if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_FILE) {
5373 loaded_image = mono_assembly_load_module (image->assembly, impl >> MONO_IMPLEMENTATION_BITS);
5376 class = mono_class_from_name (loaded_image, name_space, name);
5378 return return_nested_in (class, nested);
5380 } else if ((impl & MONO_IMPLEMENTATION_MASK) == MONO_IMPLEMENTATION_ASSEMBLYREF) {
5381 MonoAssembly **references = image->references;
5382 if (!references [idx - 1])
5383 mono_assembly_load_reference (image, idx - 1);
5384 g_assert (references == image->references);
5385 g_assert (references [idx - 1]);
5386 if (references [idx - 1] == (gpointer)-1)
5389 /* FIXME: Cycle detection */
5390 return mono_class_from_name (references [idx - 1]->image, name_space, name);
5392 g_error ("not yet implemented");
5396 token = MONO_TOKEN_TYPE_DEF | token;
5398 class = mono_class_get (image, token);
5400 return return_nested_in (class, nested);
5405 mono_class_is_subclass_of (MonoClass *klass, MonoClass *klassc,
5406 gboolean check_interfaces)
5408 g_assert (klassc->idepth > 0);
5409 if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && !MONO_CLASS_IS_INTERFACE (klass)) {
5410 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass, klassc->interface_id))
5412 } else if (check_interfaces && MONO_CLASS_IS_INTERFACE (klassc) && MONO_CLASS_IS_INTERFACE (klass)) {
5415 for (i = 0; i < klass->interface_count; i ++) {
5416 MonoClass *ic = klass->interfaces [i];
5421 if (!MONO_CLASS_IS_INTERFACE (klass) && mono_class_has_parent (klass, klassc))
5426 * MS.NET thinks interfaces are a subclass of Object, so we think it as
5429 if (klassc == mono_defaults.object_class)
5436 mono_class_has_variant_generic_params (MonoClass *klass)
5439 MonoGenericContainer *container;
5441 if (!klass->generic_class)
5444 container = klass->generic_class->container_class->generic_container;
5446 for (i = 0; i < container->type_argc; ++i)
5447 if (container->type_params [i].flags & (MONO_GEN_PARAM_VARIANT|MONO_GEN_PARAM_COVARIANT))
5454 * mono_class_is_assignable_from:
5455 * @klass: the class to be assigned to
5456 * @oklass: the source class
5458 * Return: true if an instance of object oklass can be assigned to an
5459 * instance of object @klass
5462 mono_class_is_assignable_from (MonoClass *klass, MonoClass *oklass)
5465 mono_class_init (klass);
5467 if (!oklass->inited)
5468 mono_class_init (oklass);
5470 if ((klass->byval_arg.type == MONO_TYPE_VAR) || (klass->byval_arg.type == MONO_TYPE_MVAR))
5471 return klass == oklass;
5473 if (MONO_CLASS_IS_INTERFACE (klass)) {
5474 if ((oklass->byval_arg.type == MONO_TYPE_VAR) || (oklass->byval_arg.type == MONO_TYPE_MVAR))
5477 /* interface_offsets might not be set for dynamic classes */
5478 if (oklass->reflection_info && !oklass->interface_bitmap)
5480 * oklass might be a generic type parameter but they have
5481 * interface_offsets set.
5483 return mono_reflection_call_is_assignable_to (oklass, klass);
5485 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass, klass->interface_id))
5488 if (mono_class_has_variant_generic_params (klass)) {
5489 if (oklass->generic_class) {
5491 gboolean match = FALSE;
5492 MonoClass *container_class1 = klass->generic_class->container_class;
5493 MonoClass *container_class2 = oklass->generic_class->container_class;
5496 * Check whenever the generic definition of oklass implements the
5497 * generic definition of klass. The IMPLEMENTS_INTERFACE stuff is not usable
5498 * here since the relevant tables are not set up.
5500 for (i = 0; i < container_class2->interface_offsets_count; ++i)
5501 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)))
5505 MonoGenericContainer *container;
5507 container = klass->generic_class->container_class->generic_container;
5510 for (i = 0; i < container->type_argc; ++i) {
5511 MonoClass *param1_class = mono_class_from_mono_type (klass->generic_class->context.class_inst->type_argv [i]);
5512 MonoClass *param2_class = mono_class_from_mono_type (oklass->generic_class->context.class_inst->type_argv [i]);
5515 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
5516 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
5518 if (param1_class != param2_class) {
5519 if ((container->type_params [i].flags & MONO_GEN_PARAM_VARIANT) && mono_class_is_assignable_from (param1_class, param2_class))
5521 else if (((container->type_params [i].flags & MONO_GEN_PARAM_COVARIANT) && mono_class_is_assignable_from (param2_class, param1_class)))
5533 } else if (klass->rank) {
5534 MonoClass *eclass, *eoclass;
5536 if (oklass->rank != klass->rank)
5539 /* vectors vs. one dimensional arrays */
5540 if (oklass->byval_arg.type != klass->byval_arg.type)
5543 eclass = klass->cast_class;
5544 eoclass = oklass->cast_class;
5547 * a is b does not imply a[] is b[] when a is a valuetype, and
5548 * b is a reference type.
5551 if (eoclass->valuetype) {
5552 if ((eclass == mono_defaults.enum_class) ||
5553 (eclass == mono_defaults.enum_class->parent) ||
5554 (eclass == mono_defaults.object_class))
5558 return mono_class_is_assignable_from (klass->cast_class, oklass->cast_class);
5559 } else if (mono_class_is_nullable (klass))
5560 return (mono_class_is_assignable_from (klass->cast_class, oklass));
5561 else if (klass == mono_defaults.object_class)
5564 return mono_class_has_parent (oklass, klass);
5568 * mono_class_get_cctor:
5569 * @klass: A MonoClass pointer
5571 * Returns: the static constructor of @klass if it exists, NULL otherwise.
5574 mono_class_get_cctor (MonoClass *klass)
5576 MonoCachedClassInfo cached_info;
5578 if (!klass->has_cctor)
5581 if (mono_class_get_cached_class_info (klass, &cached_info))
5582 return mono_get_method (klass->image, cached_info.cctor_token, klass);
5584 return mono_class_get_method_from_name_flags (klass, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME);
5588 * mono_class_get_finalizer:
5589 * @klass: The MonoClass pointer
5591 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
5594 mono_class_get_finalizer (MonoClass *klass)
5596 MonoCachedClassInfo cached_info;
5599 mono_class_init (klass);
5600 if (!klass->has_finalize)
5603 if (mono_class_get_cached_class_info (klass, &cached_info))
5604 return mono_get_method (cached_info.finalize_image, cached_info.finalize_token, NULL);
5606 mono_class_setup_vtable (klass);
5607 return klass->vtable [finalize_slot];
5612 * mono_class_needs_cctor_run:
5613 * @klass: the MonoClass pointer
5614 * @caller: a MonoMethod describing the caller
5616 * Determines whenever the class has a static constructor and whenever it
5617 * needs to be called when executing CALLER.
5620 mono_class_needs_cctor_run (MonoClass *klass, MonoMethod *caller)
5624 method = mono_class_get_cctor (klass);
5626 return (method == caller) ? FALSE : TRUE;
5632 * mono_class_array_element_size:
5635 * Returns: the number of bytes an element of type @klass
5636 * uses when stored into an array.
5639 mono_class_array_element_size (MonoClass *klass)
5641 MonoType *type = &klass->byval_arg;
5644 switch (type->type) {
5647 case MONO_TYPE_BOOLEAN:
5651 case MONO_TYPE_CHAR:
5660 case MONO_TYPE_CLASS:
5661 case MONO_TYPE_STRING:
5662 case MONO_TYPE_OBJECT:
5663 case MONO_TYPE_SZARRAY:
5664 case MONO_TYPE_ARRAY:
5666 case MONO_TYPE_MVAR:
5667 return sizeof (gpointer);
5672 case MONO_TYPE_VALUETYPE:
5673 if (type->data.klass->enumtype) {
5674 type = type->data.klass->enum_basetype;
5675 klass = klass->element_class;
5678 return mono_class_instance_size (klass) - sizeof (MonoObject);
5679 case MONO_TYPE_GENERICINST:
5680 type = &type->data.generic_class->container_class->byval_arg;
5683 g_error ("unknown type 0x%02x in mono_class_array_element_size", type->type);
5689 * mono_array_element_size:
5690 * @ac: pointer to a #MonoArrayClass
5692 * Returns: the size of single array element.
5695 mono_array_element_size (MonoClass *ac)
5697 g_assert (ac->rank);
5698 return ac->sizes.element_size;
5702 mono_ldtoken (MonoImage *image, guint32 token, MonoClass **handle_class,
5703 MonoGenericContext *context)
5705 if (image->dynamic) {
5706 MonoClass *tmp_handle_class;
5707 gpointer obj = mono_lookup_dynamic_token_class (image, token, TRUE, &tmp_handle_class, context);
5709 g_assert (tmp_handle_class);
5711 *handle_class = tmp_handle_class;
5713 if (tmp_handle_class == mono_defaults.typehandle_class)
5714 return &((MonoClass*)obj)->byval_arg;
5719 switch (token & 0xff000000) {
5720 case MONO_TOKEN_TYPE_DEF:
5721 case MONO_TOKEN_TYPE_REF:
5722 case MONO_TOKEN_TYPE_SPEC: {
5725 *handle_class = mono_defaults.typehandle_class;
5726 type = mono_type_get_full (image, token, context);
5729 mono_class_init (mono_class_from_mono_type (type));
5730 /* We return a MonoType* as handle */
5733 case MONO_TOKEN_FIELD_DEF: {
5735 guint32 type = mono_metadata_typedef_from_field (image, mono_metadata_token_index (token));
5737 *handle_class = mono_defaults.fieldhandle_class;
5738 class = mono_class_get_full (image, MONO_TOKEN_TYPE_DEF | type, context);
5741 mono_class_init (class);
5742 return mono_class_get_field (class, token);
5744 case MONO_TOKEN_METHOD_DEF:
5745 case MONO_TOKEN_METHOD_SPEC: {
5747 meth = mono_get_method_full (image, token, NULL, context);
5749 *handle_class = mono_defaults.methodhandle_class;
5752 case MONO_TOKEN_MEMBER_REF: {
5753 guint32 cols [MONO_MEMBERREF_SIZE];
5755 mono_metadata_decode_row (&image->tables [MONO_TABLE_MEMBERREF], mono_metadata_token_index (token) - 1, cols, MONO_MEMBERREF_SIZE);
5756 sig = mono_metadata_blob_heap (image, cols [MONO_MEMBERREF_SIGNATURE]);
5757 mono_metadata_decode_blob_size (sig, &sig);
5758 if (*sig == 0x6) { /* it's a field */
5760 MonoClassField *field;
5761 field = mono_field_from_token (image, token, &klass, context);
5763 *handle_class = mono_defaults.fieldhandle_class;
5767 meth = mono_get_method_full (image, token, NULL, context);
5769 *handle_class = mono_defaults.methodhandle_class;
5774 g_warning ("Unknown token 0x%08x in ldtoken", token);
5781 * This function might need to call runtime functions so it can't be part
5782 * of the metadata library.
5784 static MonoLookupDynamicToken lookup_dynamic = NULL;
5787 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func)
5789 lookup_dynamic = func;
5793 mono_lookup_dynamic_token (MonoImage *image, guint32 token, MonoGenericContext *context)
5795 MonoClass *handle_class;
5797 return lookup_dynamic (image, token, TRUE, &handle_class, context);
5801 mono_lookup_dynamic_token_class (MonoImage *image, guint32 token, gboolean valid_token, MonoClass **handle_class, MonoGenericContext *context)
5803 return lookup_dynamic (image, token, valid_token, handle_class, context);
5806 static MonoGetCachedClassInfo get_cached_class_info = NULL;
5809 mono_install_get_cached_class_info (MonoGetCachedClassInfo func)
5811 get_cached_class_info = func;
5815 mono_class_get_cached_class_info (MonoClass *klass, MonoCachedClassInfo *res)
5817 if (!get_cached_class_info)
5820 return get_cached_class_info (klass, res);
5824 mono_install_get_class_from_name (MonoGetClassFromName func)
5826 get_class_from_name = func;
5830 mono_class_get_image (MonoClass *klass)
5832 return klass->image;
5836 * mono_class_get_element_class:
5837 * @klass: the MonoClass to act on
5839 * Returns: the element class of an array or an enumeration.
5842 mono_class_get_element_class (MonoClass *klass)
5844 return klass->element_class;
5848 * mono_class_is_valuetype:
5849 * @klass: the MonoClass to act on
5851 * Returns: true if the MonoClass represents a ValueType.
5854 mono_class_is_valuetype (MonoClass *klass)
5856 return klass->valuetype;
5860 * mono_class_is_enum:
5861 * @klass: the MonoClass to act on
5863 * Returns: true if the MonoClass represents an enumeration.
5866 mono_class_is_enum (MonoClass *klass)
5868 return klass->enumtype;
5872 * mono_class_enum_basetype:
5873 * @klass: the MonoClass to act on
5875 * Returns: the underlying type representation for an enumeration.
5878 mono_class_enum_basetype (MonoClass *klass)
5880 return klass->enum_basetype;
5884 * mono_class_get_parent
5885 * @klass: the MonoClass to act on
5887 * Returns: the parent class for this class.
5890 mono_class_get_parent (MonoClass *klass)
5892 return klass->parent;
5896 * mono_class_get_nesting_type;
5897 * @klass: the MonoClass to act on
5899 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
5902 mono_class_get_nesting_type (MonoClass *klass)
5904 return klass->nested_in;
5908 * mono_class_get_rank:
5909 * @klass: the MonoClass to act on
5911 * Returns: the rank for the array (the number of dimensions).
5914 mono_class_get_rank (MonoClass *klass)
5920 * mono_class_get_flags:
5921 * @klass: the MonoClass to act on
5923 * The type flags from the TypeDef table from the metadata.
5924 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
5927 * Returns: the flags from the TypeDef table.
5930 mono_class_get_flags (MonoClass *klass)
5932 return klass->flags;
5936 * mono_class_get_name
5937 * @klass: the MonoClass to act on
5939 * Returns: the name of the class.
5942 mono_class_get_name (MonoClass *klass)
5948 * mono_class_get_namespace:
5949 * @klass: the MonoClass to act on
5951 * Returns: the namespace of the class.
5954 mono_class_get_namespace (MonoClass *klass)
5956 return klass->name_space;
5960 * mono_class_get_type:
5961 * @klass: the MonoClass to act on
5963 * This method returns the internal Type representation for the class.
5965 * Returns: the MonoType from the class.
5968 mono_class_get_type (MonoClass *klass)
5970 return &klass->byval_arg;
5974 * mono_class_get_type_token
5975 * @klass: the MonoClass to act on
5977 * This method returns type token for the class.
5979 * Returns: the type token for the class.
5982 mono_class_get_type_token (MonoClass *klass)
5984 return klass->type_token;
5988 * mono_class_get_byref_type:
5989 * @klass: the MonoClass to act on
5994 mono_class_get_byref_type (MonoClass *klass)
5996 return &klass->this_arg;
6000 * mono_class_num_fields:
6001 * @klass: the MonoClass to act on
6003 * Returns: the number of static and instance fields in the class.
6006 mono_class_num_fields (MonoClass *klass)
6008 return klass->field.count;
6012 * mono_class_num_methods:
6013 * @klass: the MonoClass to act on
6015 * Returns: the number of methods in the class.
6018 mono_class_num_methods (MonoClass *klass)
6020 return klass->method.count;
6024 * mono_class_num_properties
6025 * @klass: the MonoClass to act on
6027 * Returns: the number of properties in the class.
6030 mono_class_num_properties (MonoClass *klass)
6032 mono_class_setup_properties (klass);
6034 return klass->property.count;
6038 * mono_class_num_events:
6039 * @klass: the MonoClass to act on
6041 * Returns: the number of events in the class.
6044 mono_class_num_events (MonoClass *klass)
6046 mono_class_setup_events (klass);
6048 return klass->event.count;
6052 * mono_class_get_fields:
6053 * @klass: the MonoClass to act on
6055 * This routine is an iterator routine for retrieving the fields in a class.
6057 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6058 * iterate over all of the elements. When no more values are
6059 * available, the return value is NULL.
6061 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
6064 mono_class_get_fields (MonoClass* klass, gpointer *iter)
6066 MonoClassField* field;
6069 mono_class_setup_fields_locking (klass);
6071 /* start from the first */
6072 if (klass->field.count) {
6073 return *iter = &klass->fields [0];
6081 if (field < &klass->fields [klass->field.count]) {
6082 return *iter = field;
6088 * mono_class_get_methods
6089 * @klass: the MonoClass to act on
6091 * This routine is an iterator routine for retrieving the fields in a class.
6093 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6094 * iterate over all of the elements. When no more values are
6095 * available, the return value is NULL.
6097 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
6100 mono_class_get_methods (MonoClass* klass, gpointer *iter)
6102 MonoMethod** method;
6106 mono_class_init (klass);
6108 mono_class_setup_methods (klass);
6109 /* start from the first */
6110 if (klass->method.count) {
6111 *iter = &klass->methods [0];
6112 return klass->methods [0];
6120 if (method < &klass->methods [klass->method.count]) {
6128 * mono_class_get_properties:
6129 * @klass: the MonoClass to act on
6131 * This routine is an iterator routine for retrieving the properties in a class.
6133 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6134 * iterate over all of the elements. When no more values are
6135 * available, the return value is NULL.
6137 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
6140 mono_class_get_properties (MonoClass* klass, gpointer *iter)
6142 MonoProperty* property;
6146 mono_class_init (klass);
6148 mono_class_setup_properties (klass);
6149 /* start from the first */
6150 if (klass->property.count) {
6151 return *iter = &klass->properties [0];
6159 if (property < &klass->properties [klass->property.count]) {
6160 return *iter = property;
6166 * mono_class_get_events:
6167 * @klass: the MonoClass to act on
6169 * This routine is an iterator routine for retrieving the properties in a class.
6171 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6172 * iterate over all of the elements. When no more values are
6173 * available, the return value is NULL.
6175 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
6178 mono_class_get_events (MonoClass* klass, gpointer *iter)
6184 mono_class_init (klass);
6186 mono_class_setup_events (klass);
6187 /* start from the first */
6188 if (klass->event.count) {
6189 return *iter = &klass->events [0];
6197 if (event < &klass->events [klass->event.count]) {
6198 return *iter = event;
6204 * mono_class_get_interfaces
6205 * @klass: the MonoClass to act on
6207 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
6209 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6210 * iterate over all of the elements. When no more values are
6211 * available, the return value is NULL.
6213 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6216 mono_class_get_interfaces (MonoClass* klass, gpointer *iter)
6222 mono_class_init (klass);
6224 /* start from the first */
6225 if (klass->interface_count) {
6226 *iter = &klass->interfaces [0];
6227 return klass->interfaces [0];
6235 if (iface < &klass->interfaces [klass->interface_count]) {
6243 * mono_class_get_nested_types
6244 * @klass: the MonoClass to act on
6246 * This routine is an iterator routine for retrieving the nested types of a class.
6247 * This works only if @klass is non-generic, or a generic type definition.
6249 * You must pass a gpointer that points to zero and is treated as an opaque handle to
6250 * iterate over all of the elements. When no more values are
6251 * available, the return value is NULL.
6253 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
6256 mono_class_get_nested_types (MonoClass* klass, gpointer *iter)
6262 mono_class_init (klass);
6264 /* start from the first */
6265 if (klass->nested_classes) {
6266 *iter = klass->nested_classes;
6267 return klass->nested_classes->data;
6269 /* no nested types */
6283 * mono_field_get_name:
6284 * @field: the MonoClassField to act on
6286 * Returns: the name of the field.
6289 mono_field_get_name (MonoClassField *field)
6295 * mono_field_get_type:
6296 * @field: the MonoClassField to act on
6298 * Returns: MonoType of the field.
6301 mono_field_get_type (MonoClassField *field)
6307 * mono_field_get_type:
6308 * @field: the MonoClassField to act on
6310 * Returns: MonoClass where the field was defined.
6313 mono_field_get_parent (MonoClassField *field)
6315 return field->parent;
6319 * mono_field_get_flags;
6320 * @field: the MonoClassField to act on
6322 * The metadata flags for a field are encoded using the
6323 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6325 * Returns: the flags for the field.
6328 mono_field_get_flags (MonoClassField *field)
6330 return field->type->attrs;
6334 * mono_field_get_offset;
6335 * @field: the MonoClassField to act on
6337 * Returns: the field offset.
6340 mono_field_get_offset (MonoClassField *field)
6342 return field->offset;
6346 * mono_field_get_data;
6347 * @field: the MonoClassField to act on
6349 * Returns: pointer to the metadata constant value or to the field
6350 * data if it has an RVA flag.
6353 mono_field_get_data (MonoClassField *field)
6359 * mono_property_get_name:
6360 * @prop: the MonoProperty to act on
6362 * Returns: the name of the property
6365 mono_property_get_name (MonoProperty *prop)
6371 * mono_property_get_set_method
6372 * @prop: the MonoProperty to act on.
6374 * Returns: the setter method of the property (A MonoMethod)
6377 mono_property_get_set_method (MonoProperty *prop)
6383 * mono_property_get_get_method
6384 * @prop: the MonoProperty to act on.
6386 * Returns: the setter method of the property (A MonoMethod)
6389 mono_property_get_get_method (MonoProperty *prop)
6395 * mono_property_get_parent:
6396 * @prop: the MonoProperty to act on.
6398 * Returns: the MonoClass where the property was defined.
6401 mono_property_get_parent (MonoProperty *prop)
6403 return prop->parent;
6407 * mono_property_get_flags:
6408 * @prop: the MonoProperty to act on.
6410 * The metadata flags for a property are encoded using the
6411 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
6413 * Returns: the flags for the property.
6416 mono_property_get_flags (MonoProperty *prop)
6422 * mono_event_get_name:
6423 * @event: the MonoEvent to act on
6425 * Returns: the name of the event.
6428 mono_event_get_name (MonoEvent *event)
6434 * mono_event_get_add_method:
6435 * @event: The MonoEvent to act on.
6437 * Returns: the @add' method for the event (a MonoMethod).
6440 mono_event_get_add_method (MonoEvent *event)
6446 * mono_event_get_remove_method:
6447 * @event: The MonoEvent to act on.
6449 * Returns: the @remove method for the event (a MonoMethod).
6452 mono_event_get_remove_method (MonoEvent *event)
6454 return event->remove;
6458 * mono_event_get_raise_method:
6459 * @event: The MonoEvent to act on.
6461 * Returns: the @raise method for the event (a MonoMethod).
6464 mono_event_get_raise_method (MonoEvent *event)
6466 return event->raise;
6470 * mono_event_get_parent:
6471 * @event: the MonoEvent to act on.
6473 * Returns: the MonoClass where the event is defined.
6476 mono_event_get_parent (MonoEvent *event)
6478 return event->parent;
6482 * mono_event_get_flags
6483 * @event: the MonoEvent to act on.
6485 * The metadata flags for an event are encoded using the
6486 * EVENT_* constants. See the tabledefs.h file for details.
6488 * Returns: the flags for the event.
6491 mono_event_get_flags (MonoEvent *event)
6493 return event->attrs;
6497 * mono_class_get_method_from_name:
6498 * @klass: where to look for the method
6499 * @name_space: name of the method
6500 * @param_count: number of parameters. -1 for any number.
6502 * Obtains a MonoMethod with a given name and number of parameters.
6503 * It only works if there are no multiple signatures for any given method name.
6506 mono_class_get_method_from_name (MonoClass *klass, const char *name, int param_count)
6508 return mono_class_get_method_from_name_flags (klass, name, param_count, 0);
6512 * mono_class_get_method_from_name_flags:
6513 * @klass: where to look for the method
6514 * @name_space: name of the method
6515 * @param_count: number of parameters. -1 for any number.
6516 * @flags: flags which must be set in the method
6518 * Obtains a MonoMethod with a given name and number of parameters.
6519 * It only works if there are no multiple signatures for any given method name.
6522 mono_class_get_method_from_name_flags (MonoClass *klass, const char *name, int param_count, int flags)
6524 MonoMethod *res = NULL;
6527 mono_class_init (klass);
6529 if (klass->methods) {
6530 mono_class_setup_methods (klass);
6531 for (i = 0; i < klass->method.count; ++i) {
6532 MonoMethod *method = klass->methods [i];
6534 if (method->name[0] == name [0] &&
6535 !strcmp (name, method->name) &&
6536 (param_count == -1 || mono_method_signature (method)->param_count == param_count) &&
6537 ((method->flags & flags) == flags)) {
6544 /* Search directly in the metadata to avoid calling setup_methods () */
6545 for (i = 0; i < klass->method.count; ++i) {
6546 guint32 cols [MONO_METHOD_SIZE];
6549 /* class->method.first points into the methodptr table */
6550 mono_metadata_decode_table_row (klass->image, MONO_TABLE_METHOD, klass->method.first + i, cols, MONO_METHOD_SIZE);
6552 if (!strcmp (mono_metadata_string_heap (klass->image, cols [MONO_METHOD_NAME]), name)) {
6553 method = mono_get_method (klass->image, MONO_TOKEN_METHOD_DEF | (klass->method.first + i + 1), klass);
6554 if ((param_count == -1) || mono_method_signature (method)->param_count == param_count) {
6566 * mono_class_set_failure:
6567 * @klass: class in which the failure was detected
6568 * @ex_type: the kind of exception/error to be thrown (later)
6569 * @ex_data: exception data (specific to each type of exception/error)
6571 * Keep a detected failure informations in the class for later processing.
6572 * Note that only the first failure is kept.
6575 mono_class_set_failure (MonoClass *klass, guint32 ex_type, void *ex_data)
6577 if (klass->exception_type)
6579 klass->exception_type = ex_type;
6580 klass->exception_data = ex_data;
6585 * mono_classes_init:
6587 * Initialize the resources used by this module.
6590 mono_classes_init (void)
6595 * mono_classes_cleanup:
6597 * Free the resources used by this module.
6600 mono_classes_cleanup (void)
6602 IOffsetInfo *cached_info, *next;
6604 if (global_interface_bitset)
6605 mono_bitset_free (global_interface_bitset);
6607 for (cached_info = cached_offset_info; cached_info;) {
6608 next = cached_info->next;
6610 g_free (cached_info);
6616 * mono_class_get_exception_for_failure:
6617 * @klass: class in which the failure was detected
6619 * Return a constructed MonoException than the caller can then throw
6620 * using mono_raise_exception - or NULL if no failure is present (or
6621 * doesn't result in an exception).
6624 mono_class_get_exception_for_failure (MonoClass *klass)
6626 switch (klass->exception_type) {
6627 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND: {
6628 MonoDomain *domain = mono_domain_get ();
6629 MonoSecurityManager* secman = mono_security_manager_get_methods ();
6630 MonoMethod *method = klass->exception_data;
6631 guint32 error = (method) ? MONO_METADATA_INHERITANCEDEMAND_METHOD : MONO_METADATA_INHERITANCEDEMAND_CLASS;
6632 MonoObject *exc = NULL;
6636 args [1] = mono_assembly_get_object (domain, mono_image_get_assembly (klass->image));
6637 args [2] = mono_type_get_object (domain, &klass->byval_arg);
6638 args [3] = (method) ? mono_method_get_object (domain, method, NULL) : NULL;
6640 mono_runtime_invoke (secman->inheritsecurityexception, NULL, args, &exc);
6641 return (MonoException*) exc;
6643 case MONO_EXCEPTION_TYPE_LOAD: {
6646 char *str = mono_type_get_full_name (klass);
6647 char *astr = klass->image->assembly? mono_stringify_assembly_name (&klass->image->assembly->aname): NULL;
6648 name = mono_string_new (mono_domain_get (), str);
6650 ex = mono_get_exception_type_load (name, astr);
6654 case MONO_EXCEPTION_MISSING_METHOD: {
6655 char *class_name = klass->exception_data;
6656 char *assembly_name = class_name + strlen (class_name) + 1;
6658 return mono_get_exception_missing_method (class_name, assembly_name);
6660 case MONO_EXCEPTION_MISSING_FIELD: {
6661 char *class_name = klass->exception_data;
6662 char *member_name = class_name + strlen (class_name) + 1;
6664 return mono_get_exception_missing_field (class_name, member_name);
6666 case MONO_EXCEPTION_FILE_NOT_FOUND: {
6667 char *msg_format = klass->exception_data;
6668 char *assembly_name = msg_format + strlen (msg_format) + 1;
6669 char *msg = g_strdup_printf (msg_format, assembly_name);
6672 ex = mono_get_exception_file_not_found2 (msg, mono_string_new (mono_domain_get (), assembly_name));
6678 case MONO_EXCEPTION_BAD_IMAGE: {
6679 return mono_get_exception_bad_image_format (klass->exception_data);
6682 MonoLoaderError *error;
6685 error = mono_loader_get_last_error ();
6687 ex = mono_loader_error_prepare_exception (error);
6691 /* TODO - handle other class related failures */
6698 can_access_internals (MonoAssembly *accessing, MonoAssembly* accessed)
6701 if (accessing == accessed)
6703 if (!accessed || !accessing)
6705 for (tmp = accessed->friend_assembly_names; tmp; tmp = tmp->next) {
6706 MonoAssemblyName *friend = tmp->data;
6707 /* Be conservative with checks */
6710 if (strcmp (accessing->aname.name, friend->name))
6712 if (friend->public_key_token [0]) {
6713 if (!accessing->aname.public_key_token [0])
6715 if (!mono_public_tokens_are_equal (friend->public_key_token, accessing->aname.public_key_token))
6724 * If klass is a generic type or if it is derived from a generic type, return the
6725 * MonoClass of the generic definition
6726 * Returns NULL if not found
6729 get_generic_definition_class (MonoClass *klass)
6732 if (klass->generic_class && klass->generic_class->container_class)
6733 return klass->generic_class->container_class;
6734 klass = klass->parent;
6739 /* FIXME: check visibility of type, too */
6741 can_access_member (MonoClass *access_klass, MonoClass *member_klass, int access_level)
6743 MonoClass *member_generic_def;
6744 if (((access_klass->generic_class && access_klass->generic_class->container_class) ||
6745 access_klass->generic_container) &&
6746 (member_generic_def = get_generic_definition_class (member_klass))) {
6747 MonoClass *access_container;
6749 if (access_klass->generic_container)
6750 access_container = access_klass;
6752 access_container = access_klass->generic_class->container_class;
6754 if (can_access_member (access_container, member_generic_def, access_level))
6758 /* Partition I 8.5.3.2 */
6759 /* the access level values are the same for fields and methods */
6760 switch (access_level) {
6761 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED:
6762 /* same compilation unit */
6763 return access_klass->image == member_klass->image;
6764 case FIELD_ATTRIBUTE_PRIVATE:
6765 return access_klass == member_klass;
6766 case FIELD_ATTRIBUTE_FAM_AND_ASSEM:
6767 if (mono_class_has_parent (access_klass, member_klass) &&
6768 can_access_internals (access_klass->image->assembly, member_klass->image->assembly))
6771 case FIELD_ATTRIBUTE_ASSEMBLY:
6772 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
6773 case FIELD_ATTRIBUTE_FAMILY:
6774 if (mono_class_has_parent (access_klass, member_klass))
6777 case FIELD_ATTRIBUTE_FAM_OR_ASSEM:
6778 if (mono_class_has_parent (access_klass, member_klass))
6780 return can_access_internals (access_klass->image->assembly, member_klass->image->assembly);
6781 case FIELD_ATTRIBUTE_PUBLIC:
6788 mono_method_can_access_field (MonoMethod *method, MonoClassField *field)
6790 /* FIXME: check all overlapping fields */
6791 int can = can_access_member (method->klass, field->parent, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
6793 MonoClass *nested = method->klass->nested_in;
6795 can = can_access_member (nested, field->parent, field->type->attrs & FIELD_ATTRIBUTE_FIELD_ACCESS_MASK);
6798 nested = nested->nested_in;
6805 mono_method_can_access_method (MonoMethod *method, MonoMethod *called)
6807 int can = can_access_member (method->klass, called->klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
6809 MonoClass *nested = method->klass->nested_in;
6811 can = can_access_member (nested, called->klass, called->flags & METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK);
6814 nested = nested->nested_in;
6819 * with generics calls to explicit interface implementations can be expressed
6820 * directly: the method is private, but we must allow it. This may be opening
6821 * a hole or the generics code should handle this differently.
6822 * Maybe just ensure the interface type is public.
6824 if ((called->flags & METHOD_ATTRIBUTE_VIRTUAL) && (called->flags & METHOD_ATTRIBUTE_FINAL))
6830 * mono_type_is_valid_enum_basetype:
6831 * @type: The MonoType to check
6833 * Returns: TRUE if the type can be used as the basetype of an enum
6835 gboolean mono_type_is_valid_enum_basetype (MonoType * type) {
6836 switch (type->type) {
6839 case MONO_TYPE_BOOLEAN:
6842 case MONO_TYPE_CHAR:
6855 * mono_class_is_valid_enum:
6856 * @klass: An enum class to be validated
6858 * This method verify the required properties an enum should have.
6860 * Returns: TRUE if the informed enum class is valid
6862 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
6863 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
6864 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
6866 gboolean mono_class_is_valid_enum (MonoClass *klass) {
6867 MonoClassField * field;
6868 gpointer iter = NULL;
6869 gboolean found_base_field = FALSE;
6871 g_assert (klass->enumtype);
6872 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
6873 if (!klass->parent || strcmp (klass->parent->name, "Enum") || strcmp (klass->parent->name_space, "System") ) {
6877 if ((klass->flags & TYPE_ATTRIBUTE_LAYOUT_MASK) != TYPE_ATTRIBUTE_AUTO_LAYOUT)
6880 while ((field = mono_class_get_fields (klass, &iter))) {
6881 if (!(field->type->attrs & FIELD_ATTRIBUTE_STATIC)) {
6882 if (found_base_field)
6884 found_base_field = TRUE;
6885 if (!mono_type_is_valid_enum_basetype (field->type))
6890 if (!found_base_field)
6893 if (klass->method.count > 0)
6900 mono_generic_class_is_generic_type_definition (MonoGenericClass *gklass)
6902 return gklass->context.class_inst == gklass->container_class->generic_container->context.class_inst;
6906 * mono_class_generic_sharing_enabled:
6909 * Returns whether generic sharing is enabled for class.
6911 * This is a stop-gap measure to slowly introduce generic sharing
6912 * until we have all the issues sorted out, at which time this
6913 * function will disappear and generic sharing will always be enabled.
6916 mono_class_generic_sharing_enabled (MonoClass *class)
6918 #if defined(__i386__) || defined(__x86_64__)
6919 static int generic_sharing = MONO_GENERIC_SHARING_CORLIB;
6921 static int generic_sharing = MONO_GENERIC_SHARING_NONE;
6923 static gboolean inited = FALSE;
6928 if ((option = g_getenv ("MONO_GENERIC_SHARING"))) {
6929 if (strcmp (option, "corlib") == 0)
6930 generic_sharing = MONO_GENERIC_SHARING_CORLIB;
6931 else if (strcmp (option, "all") == 0)
6932 generic_sharing = MONO_GENERIC_SHARING_ALL;
6933 else if (strcmp (option, "none") == 0)
6934 generic_sharing = MONO_GENERIC_SHARING_NONE;
6936 g_warning ("Unknown generic sharing option `%s'.", option);
6942 switch (generic_sharing) {
6943 case MONO_GENERIC_SHARING_NONE:
6945 case MONO_GENERIC_SHARING_ALL:
6947 case MONO_GENERIC_SHARING_CORLIB :
6948 return class->image == mono_defaults.corlib;
6950 g_assert_not_reached ();