2 * class.c: Class management for the Mono runtime
5 * Miguel de Icaza (miguel@ximian.com)
7 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
8 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
19 #include <mono/io-layer/atomic.h>
21 #include <mono/metadata/image.h>
22 #include <mono/metadata/assembly.h>
23 #include <mono/metadata/metadata.h>
24 #include <mono/metadata/metadata-internals.h>
25 #include <mono/metadata/profiler-private.h>
26 #include <mono/metadata/tabledefs.h>
27 #include <mono/metadata/tokentype.h>
28 #include <mono/metadata/class-internals.h>
29 #include <mono/metadata/object.h>
30 #include <mono/metadata/appdomain.h>
31 #include <mono/metadata/mono-endian.h>
32 #include <mono/metadata/debug-helpers.h>
33 #include <mono/metadata/reflection.h>
34 #include <mono/metadata/exception.h>
35 #include <mono/metadata/security-manager.h>
36 #include <mono/metadata/security-core-clr.h>
37 #include <mono/metadata/attrdefs.h>
38 #include <mono/metadata/gc-internal.h>
39 #include <mono/metadata/verify-internals.h>
40 #include <mono/metadata/mono-debug.h>
41 #include <mono/utils/mono-counters.h>
42 #include <mono/utils/mono-string.h>
43 #include <mono/utils/mono-error-internals.h>
47 gboolean mono_print_vtable
= FALSE
;
50 guint32 inflated_classes
, inflated_classes_size
, inflated_methods_size
;
51 guint32 classes_size
, class_ext_size
;
53 /* Function supplied by the runtime to find classes by name using information from the AOT file */
54 static MonoGetClassFromName get_class_from_name
= NULL
;
56 static MonoClass
* mono_class_create_from_typedef (MonoImage
*image
, guint32 type_token
);
57 static gboolean
mono_class_get_cached_class_info (MonoClass
*klass
, MonoCachedClassInfo
*res
);
58 static gboolean
can_access_type (MonoClass
*access_klass
, MonoClass
*member_klass
);
59 static MonoMethod
* find_method_in_metadata (MonoClass
*klass
, const char *name
, int param_count
, int flags
);
60 static int generic_array_methods (MonoClass
*class);
61 static void setup_generic_array_ifaces (MonoClass
*class, MonoClass
*iface
, MonoMethod
**methods
, int pos
);
63 static MonoMethod
* mono_class_get_virtual_methods (MonoClass
* klass
, gpointer
*iter
);
64 static char* mono_assembly_name_from_token (MonoImage
*image
, guint32 type_token
);
65 static gboolean
mono_class_is_variant_compatible (MonoClass
*klass
, MonoClass
*oklass
);
68 void (*mono_debugger_class_init_func
) (MonoClass
*klass
) = NULL
;
69 void (*mono_debugger_class_loaded_methods_func
) (MonoClass
*klass
) = NULL
;
72 * mono_class_from_typeref:
74 * @type_token: a TypeRef token
76 * Creates the MonoClass* structure representing the type defined by
77 * the typeref token valid inside @image.
78 * Returns: the MonoClass* representing the typeref token, NULL ifcould
82 mono_class_from_typeref (MonoImage
*image
, guint32 type_token
)
84 guint32 cols
[MONO_TYPEREF_SIZE
];
85 MonoTableInfo
*t
= &image
->tables
[MONO_TABLE_TYPEREF
];
87 const char *name
, *nspace
;
91 mono_metadata_decode_row (t
, (type_token
&0xffffff)-1, cols
, MONO_TYPEREF_SIZE
);
93 name
= mono_metadata_string_heap (image
, cols
[MONO_TYPEREF_NAME
]);
94 nspace
= mono_metadata_string_heap (image
, cols
[MONO_TYPEREF_NAMESPACE
]);
96 idx
= cols
[MONO_TYPEREF_SCOPE
] >> MONO_RESOLTION_SCOPE_BITS
;
97 switch (cols
[MONO_TYPEREF_SCOPE
] & MONO_RESOLTION_SCOPE_MASK
) {
98 case MONO_RESOLTION_SCOPE_MODULE
:
100 g_error ("null ResolutionScope not yet handled");
101 /* a typedef in disguise */
102 return mono_class_from_name (image
, nspace
, name
);
103 case MONO_RESOLTION_SCOPE_MODULEREF
:
104 module
= mono_image_load_module (image
, idx
);
106 return mono_class_from_name (module
, nspace
, name
);
108 char *msg
= g_strdup_printf ("%s%s%s", nspace
, nspace
[0] ? "." : "", name
);
111 human_name
= mono_stringify_assembly_name (&image
->assembly
->aname
);
112 mono_loader_set_error_type_load (msg
, human_name
);
118 case MONO_RESOLTION_SCOPE_TYPEREF
: {
119 MonoClass
*enclosing
;
122 if (idx
== mono_metadata_token_index (type_token
)) {
123 mono_loader_set_error_bad_image (g_strdup_printf ("Image %s with self-referencing typeref token %08x.", image
->name
, type_token
));
127 enclosing
= mono_class_from_typeref (image
, MONO_TOKEN_TYPE_REF
| idx
);
131 if (enclosing
->nested_classes_inited
&& enclosing
->ext
) {
132 /* Micro-optimization: don't scan the metadata tables if enclosing is already inited */
133 for (tmp
= enclosing
->ext
->nested_classes
; tmp
; tmp
= tmp
->next
) {
135 if (strcmp (res
->name
, name
) == 0)
139 /* Don't call mono_class_init as we might've been called by it recursively */
140 int i
= mono_metadata_nesting_typedef (enclosing
->image
, enclosing
->type_token
, 1);
142 guint32 class_nested
= mono_metadata_decode_row_col (&enclosing
->image
->tables
[MONO_TABLE_NESTEDCLASS
], i
- 1, MONO_NESTED_CLASS_NESTED
);
143 guint32 string_offset
= mono_metadata_decode_row_col (&enclosing
->image
->tables
[MONO_TABLE_TYPEDEF
], class_nested
- 1, MONO_TYPEDEF_NAME
);
144 const char *nname
= mono_metadata_string_heap (enclosing
->image
, string_offset
);
146 if (strcmp (nname
, name
) == 0)
147 return mono_class_create_from_typedef (enclosing
->image
, MONO_TOKEN_TYPE_DEF
| class_nested
);
149 i
= mono_metadata_nesting_typedef (enclosing
->image
, enclosing
->type_token
, i
+ 1);
152 g_warning ("TypeRef ResolutionScope not yet handled (%d) for %s.%s in image %s", idx
, nspace
, name
, image
->name
);
155 case MONO_RESOLTION_SCOPE_ASSEMBLYREF
:
159 if (idx
> image
->tables
[MONO_TABLE_ASSEMBLYREF
].rows
) {
160 mono_loader_set_error_bad_image (g_strdup_printf ("Image %s with invalid assemblyref token %08x.", image
->name
, idx
));
164 if (!image
->references
|| !image
->references
[idx
- 1])
165 mono_assembly_load_reference (image
, idx
- 1);
166 g_assert (image
->references
[idx
- 1]);
168 /* If the assembly did not load, register this as a type load exception */
169 if (image
->references
[idx
- 1] == REFERENCE_MISSING
){
170 MonoAssemblyName aname
;
173 mono_assembly_get_assemblyref (image
, idx
- 1, &aname
);
174 human_name
= mono_stringify_assembly_name (&aname
);
175 mono_loader_set_error_assembly_load (human_name
, image
->assembly
->ref_only
);
181 return mono_class_from_name (image
->references
[idx
- 1]->image
, nspace
, name
);
186 mono_image_memdup (MonoImage
*image
, void *data
, guint size
)
188 void *res
= mono_image_alloc (image
, size
);
189 memcpy (res
, data
, size
);
193 /* Copy everything mono_metadata_free_array free. */
195 mono_dup_array_type (MonoImage
*image
, MonoArrayType
*a
)
198 a
= mono_image_memdup (image
, a
, sizeof (MonoArrayType
));
200 a
->sizes
= mono_image_memdup (image
, a
->sizes
, a
->numsizes
* sizeof (int));
202 a
->lobounds
= mono_image_memdup (image
, a
->lobounds
, a
->numlobounds
* sizeof (int));
204 a
= g_memdup (a
, sizeof (MonoArrayType
));
206 a
->sizes
= g_memdup (a
->sizes
, a
->numsizes
* sizeof (int));
208 a
->lobounds
= g_memdup (a
->lobounds
, a
->numlobounds
* sizeof (int));
213 /* Copy everything mono_metadata_free_method_signature free. */
215 mono_metadata_signature_deep_dup (MonoImage
*image
, MonoMethodSignature
*sig
)
219 sig
= mono_metadata_signature_dup_full (image
, sig
);
221 sig
->ret
= mono_metadata_type_dup (image
, sig
->ret
);
222 for (i
= 0; i
< sig
->param_count
; ++i
)
223 sig
->params
[i
] = mono_metadata_type_dup (image
, sig
->params
[i
]);
229 _mono_type_get_assembly_name (MonoClass
*klass
, GString
*str
)
231 MonoAssembly
*ta
= klass
->image
->assembly
;
233 g_string_append_printf (
234 str
, ", %s, Version=%d.%d.%d.%d, Culture=%s, PublicKeyToken=%s%s",
236 ta
->aname
.major
, ta
->aname
.minor
, ta
->aname
.build
, ta
->aname
.revision
,
237 ta
->aname
.culture
&& *ta
->aname
.culture
? ta
->aname
.culture
: "neutral",
238 ta
->aname
.public_key_token
[0] ? (char *)ta
->aname
.public_key_token
: "null",
239 (ta
->aname
.flags
& ASSEMBLYREF_RETARGETABLE_FLAG
) ? ", Retargetable=Yes" : "");
243 mono_type_name_check_byref (MonoType
*type
, GString
*str
)
246 g_string_append_c (str
, '&');
250 mono_type_get_name_recurse (MonoType
*type
, GString
*str
, gboolean is_recursed
,
251 MonoTypeNameFormat format
)
255 switch (type
->type
) {
256 case MONO_TYPE_ARRAY
: {
257 int i
, rank
= type
->data
.array
->rank
;
258 MonoTypeNameFormat nested_format
;
260 nested_format
= format
== MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
?
261 MONO_TYPE_NAME_FORMAT_FULL_NAME
: format
;
263 mono_type_get_name_recurse (
264 &type
->data
.array
->eklass
->byval_arg
, str
, FALSE
, nested_format
);
265 g_string_append_c (str
, '[');
267 g_string_append_c (str
, '*');
268 for (i
= 1; i
< rank
; i
++)
269 g_string_append_c (str
, ',');
270 g_string_append_c (str
, ']');
272 mono_type_name_check_byref (type
, str
);
274 if (format
== MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
)
275 _mono_type_get_assembly_name (type
->data
.array
->eklass
, str
);
278 case MONO_TYPE_SZARRAY
: {
279 MonoTypeNameFormat nested_format
;
281 nested_format
= format
== MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
?
282 MONO_TYPE_NAME_FORMAT_FULL_NAME
: format
;
284 mono_type_get_name_recurse (
285 &type
->data
.klass
->byval_arg
, str
, FALSE
, nested_format
);
286 g_string_append (str
, "[]");
288 mono_type_name_check_byref (type
, str
);
290 if (format
== MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
)
291 _mono_type_get_assembly_name (type
->data
.klass
, str
);
294 case MONO_TYPE_PTR
: {
295 MonoTypeNameFormat nested_format
;
297 nested_format
= format
== MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
?
298 MONO_TYPE_NAME_FORMAT_FULL_NAME
: format
;
300 mono_type_get_name_recurse (
301 type
->data
.type
, str
, FALSE
, nested_format
);
302 g_string_append_c (str
, '*');
304 mono_type_name_check_byref (type
, str
);
306 if (format
== MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
)
307 _mono_type_get_assembly_name (mono_class_from_mono_type (type
->data
.type
), str
);
312 if (!mono_generic_param_info (type
->data
.generic_param
))
313 g_string_append_printf (str
, "%s%d", type
->type
== MONO_TYPE_VAR
? "!" : "!!", type
->data
.generic_param
->num
);
315 g_string_append (str
, mono_generic_param_info (type
->data
.generic_param
)->name
);
317 mono_type_name_check_byref (type
, str
);
321 klass
= mono_class_from_mono_type (type
);
322 if (klass
->nested_in
) {
323 mono_type_get_name_recurse (
324 &klass
->nested_in
->byval_arg
, str
, TRUE
, format
);
325 if (format
== MONO_TYPE_NAME_FORMAT_IL
)
326 g_string_append_c (str
, '.');
328 g_string_append_c (str
, '+');
329 } else if (*klass
->name_space
) {
330 g_string_append (str
, klass
->name_space
);
331 g_string_append_c (str
, '.');
333 if (format
== MONO_TYPE_NAME_FORMAT_IL
) {
334 char *s
= strchr (klass
->name
, '`');
335 int len
= s
? s
- klass
->name
: strlen (klass
->name
);
337 g_string_append_len (str
, klass
->name
, len
);
339 g_string_append (str
, klass
->name
);
342 if (klass
->generic_class
) {
343 MonoGenericClass
*gclass
= klass
->generic_class
;
344 MonoGenericInst
*inst
= gclass
->context
.class_inst
;
345 MonoTypeNameFormat nested_format
;
348 nested_format
= format
== MONO_TYPE_NAME_FORMAT_FULL_NAME
?
349 MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
: format
;
351 if (format
== MONO_TYPE_NAME_FORMAT_IL
)
352 g_string_append_c (str
, '<');
354 g_string_append_c (str
, '[');
355 for (i
= 0; i
< inst
->type_argc
; i
++) {
356 MonoType
*t
= inst
->type_argv
[i
];
359 g_string_append_c (str
, ',');
360 if ((nested_format
== MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
) &&
361 (t
->type
!= MONO_TYPE_VAR
) && (type
->type
!= MONO_TYPE_MVAR
))
362 g_string_append_c (str
, '[');
363 mono_type_get_name_recurse (inst
->type_argv
[i
], str
, FALSE
, nested_format
);
364 if ((nested_format
== MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
) &&
365 (t
->type
!= MONO_TYPE_VAR
) && (type
->type
!= MONO_TYPE_MVAR
))
366 g_string_append_c (str
, ']');
368 if (format
== MONO_TYPE_NAME_FORMAT_IL
)
369 g_string_append_c (str
, '>');
371 g_string_append_c (str
, ']');
372 } else if (klass
->generic_container
&&
373 (format
!= MONO_TYPE_NAME_FORMAT_FULL_NAME
) &&
374 (format
!= MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
)) {
377 if (format
== MONO_TYPE_NAME_FORMAT_IL
)
378 g_string_append_c (str
, '<');
380 g_string_append_c (str
, '[');
381 for (i
= 0; i
< klass
->generic_container
->type_argc
; i
++) {
383 g_string_append_c (str
, ',');
384 g_string_append (str
, mono_generic_container_get_param_info (klass
->generic_container
, i
)->name
);
386 if (format
== MONO_TYPE_NAME_FORMAT_IL
)
387 g_string_append_c (str
, '>');
389 g_string_append_c (str
, ']');
392 mono_type_name_check_byref (type
, str
);
394 if ((format
== MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
) &&
395 (type
->type
!= MONO_TYPE_VAR
) && (type
->type
!= MONO_TYPE_MVAR
))
396 _mono_type_get_assembly_name (klass
, str
);
402 * mono_type_get_name_full:
404 * @format: the format for the return string.
407 * Returns: the string representation in a number of formats:
409 * if format is MONO_TYPE_NAME_FORMAT_REFLECTION, the return string is
410 * returned in the formatrequired by System.Reflection, this is the
411 * inverse of mono_reflection_parse_type ().
413 * if format is MONO_TYPE_NAME_FORMAT_IL, it returns a syntax that can
414 * be used by the IL assembler.
416 * if format is MONO_TYPE_NAME_FORMAT_FULL_NAME
418 * if format is MONO_TYPE_NAME_FORMAT_ASSEMBLY_QUALIFIED
421 mono_type_get_name_full (MonoType
*type
, MonoTypeNameFormat format
)
425 result
= g_string_new ("");
427 mono_type_get_name_recurse (type
, result
, FALSE
, format
);
429 return g_string_free (result
, FALSE
);
433 * mono_type_get_full_name:
436 * Returns: the string representation for type as required by System.Reflection.
437 * The inverse of mono_reflection_parse_type ().
440 mono_type_get_full_name (MonoClass
*class)
442 return mono_type_get_name_full (mono_class_get_type (class), MONO_TYPE_NAME_FORMAT_REFLECTION
);
446 * mono_type_get_name:
449 * Returns: the string representation for type as it would be represented in IL code.
452 mono_type_get_name (MonoType
*type
)
454 return mono_type_get_name_full (type
, MONO_TYPE_NAME_FORMAT_IL
);
458 * mono_type_get_underlying_type:
461 * Returns: the MonoType for the underlying integer type if @type
462 * is an enum and byref is false, otherwise the type itself.
465 mono_type_get_underlying_type (MonoType
*type
)
467 if (type
->type
== MONO_TYPE_VALUETYPE
&& type
->data
.klass
->enumtype
&& !type
->byref
)
468 return mono_class_enum_basetype (type
->data
.klass
);
469 if (type
->type
== MONO_TYPE_GENERICINST
&& type
->data
.generic_class
->container_class
->enumtype
&& !type
->byref
)
470 return mono_class_enum_basetype (type
->data
.generic_class
->container_class
);
475 * mono_class_is_open_constructed_type:
478 * Returns TRUE if type represents a generics open constructed type
479 * (not all the type parameters required for the instantiation have
483 mono_class_is_open_constructed_type (MonoType
*t
)
489 case MONO_TYPE_SZARRAY
:
490 return mono_class_is_open_constructed_type (&t
->data
.klass
->byval_arg
);
491 case MONO_TYPE_ARRAY
:
492 return mono_class_is_open_constructed_type (&t
->data
.array
->eklass
->byval_arg
);
494 return mono_class_is_open_constructed_type (t
->data
.type
);
495 case MONO_TYPE_GENERICINST
:
496 return t
->data
.generic_class
->context
.class_inst
->is_open
;
503 inflate_generic_type (MonoImage
*image
, MonoType
*type
, MonoGenericContext
*context
, MonoError
*error
)
505 mono_error_init (error
);
507 switch (type
->type
) {
508 case MONO_TYPE_MVAR
: {
510 int num
= mono_type_get_generic_param_num (type
);
511 MonoGenericInst
*inst
= context
->method_inst
;
512 if (!inst
|| !inst
->type_argv
)
514 if (num
>= inst
->type_argc
) {
515 MonoGenericParamInfo
*info
= mono_generic_param_info (type
->data
.generic_param
);
516 mono_error_set_bad_image (error
, image
, "MVAR %d (%s) cannot be expanded in this context with %d instantiations",
517 num
, info
? info
->name
: "", inst
->type_argc
);
522 * Note that the VAR/MVAR cases are different from the rest. The other cases duplicate @type,
523 * while the VAR/MVAR duplicates a type from the context. So, we need to ensure that the
524 * ->byref and ->attrs from @type are propagated to the returned type.
526 nt
= mono_metadata_type_dup (image
, inst
->type_argv
[num
]);
527 nt
->byref
= type
->byref
;
528 nt
->attrs
= type
->attrs
;
531 case MONO_TYPE_VAR
: {
533 int num
= mono_type_get_generic_param_num (type
);
534 MonoGenericInst
*inst
= context
->class_inst
;
537 if (num
>= inst
->type_argc
) {
538 MonoGenericParamInfo
*info
= mono_generic_param_info (type
->data
.generic_param
);
539 mono_error_set_bad_image (error
, image
, "VAR %d (%s) cannot be expanded in this context with %d instantiations",
540 num
, info
? info
->name
: "", inst
->type_argc
);
543 nt
= mono_metadata_type_dup (image
, inst
->type_argv
[num
]);
544 nt
->byref
= type
->byref
;
545 nt
->attrs
= type
->attrs
;
548 case MONO_TYPE_SZARRAY
: {
549 MonoClass
*eclass
= type
->data
.klass
;
550 MonoType
*nt
, *inflated
= inflate_generic_type (NULL
, &eclass
->byval_arg
, context
, error
);
551 if (!inflated
|| !mono_error_ok (error
))
553 nt
= mono_metadata_type_dup (image
, type
);
554 nt
->data
.klass
= mono_class_from_mono_type (inflated
);
555 mono_metadata_free_type (inflated
);
558 case MONO_TYPE_ARRAY
: {
559 MonoClass
*eclass
= type
->data
.array
->eklass
;
560 MonoType
*nt
, *inflated
= inflate_generic_type (NULL
, &eclass
->byval_arg
, context
, error
);
561 if (!inflated
|| !mono_error_ok (error
))
563 nt
= mono_metadata_type_dup (image
, type
);
564 nt
->data
.array
->eklass
= mono_class_from_mono_type (inflated
);
565 mono_metadata_free_type (inflated
);
568 case MONO_TYPE_GENERICINST
: {
569 MonoGenericClass
*gclass
= type
->data
.generic_class
;
570 MonoGenericInst
*inst
;
572 if (!gclass
->context
.class_inst
->is_open
)
575 inst
= mono_metadata_inflate_generic_inst (gclass
->context
.class_inst
, context
, error
);
576 if (!mono_error_ok (error
))
578 if (inst
!= gclass
->context
.class_inst
)
579 gclass
= mono_metadata_lookup_generic_class (gclass
->container_class
, inst
, gclass
->is_dynamic
);
581 if (gclass
== type
->data
.generic_class
)
584 nt
= mono_metadata_type_dup (image
, type
);
585 nt
->data
.generic_class
= gclass
;
588 case MONO_TYPE_CLASS
:
589 case MONO_TYPE_VALUETYPE
: {
590 MonoClass
*klass
= type
->data
.klass
;
591 MonoGenericContainer
*container
= klass
->generic_container
;
592 MonoGenericInst
*inst
;
593 MonoGenericClass
*gclass
= NULL
;
599 /* We can't use context->class_inst directly, since it can have more elements */
600 inst
= mono_metadata_inflate_generic_inst (container
->context
.class_inst
, context
, error
);
601 if (!mono_error_ok (error
))
603 if (inst
== container
->context
.class_inst
)
606 gclass
= mono_metadata_lookup_generic_class (klass
, inst
, klass
->image
->dynamic
);
608 nt
= mono_metadata_type_dup (image
, type
);
609 nt
->type
= MONO_TYPE_GENERICINST
;
610 nt
->data
.generic_class
= gclass
;
620 mono_generic_class_get_context (MonoGenericClass
*gclass
)
622 return &gclass
->context
;
626 mono_class_get_context (MonoClass
*class)
628 return class->generic_class
? mono_generic_class_get_context (class->generic_class
) : NULL
;
632 * mono_class_get_generic_container:
634 * Return the generic container of KLASS which should be a generic type definition.
636 MonoGenericContainer
*
637 mono_class_get_generic_container (MonoClass
*klass
)
639 g_assert (klass
->is_generic
);
641 return klass
->generic_container
;
645 * mono_class_get_generic_class:
647 * Return the MonoGenericClass of KLASS, which should be a generic instance.
650 mono_class_get_generic_class (MonoClass
*klass
)
652 g_assert (klass
->is_inflated
);
654 return klass
->generic_class
;
658 * mono_class_inflate_generic_type_with_mempool:
659 * @mempool: a mempool
661 * @context: a generics context
662 * @error: error context
664 * The same as mono_class_inflate_generic_type, but allocates the MonoType
665 * from mempool if it is non-NULL. If it is NULL, the MonoType is
666 * allocated on the heap and is owned by the caller.
667 * The returned type can potentially be the same as TYPE, so it should not be
668 * modified by the caller, and it should be freed using mono_metadata_free_type ().
671 mono_class_inflate_generic_type_with_mempool (MonoImage
*image
, MonoType
*type
, MonoGenericContext
*context
, MonoError
*error
)
673 MonoType
*inflated
= NULL
;
674 mono_error_init (error
);
677 inflated
= inflate_generic_type (image
, type
, context
, error
);
678 if (!mono_error_ok (error
))
682 MonoType
*shared
= mono_metadata_get_shared_type (type
);
687 return mono_metadata_type_dup (image
, type
);
691 mono_stats
.inflated_type_count
++;
696 * mono_class_inflate_generic_type:
698 * @context: a generics context
700 * If @type is a generic type and @context is not NULL, instantiate it using the
701 * generics context @context.
703 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
704 * on the heap and is owned by the caller. Returns NULL on error.
706 * @deprecated Please use mono_class_inflate_generic_type_checked instead
709 mono_class_inflate_generic_type (MonoType
*type
, MonoGenericContext
*context
)
713 result
= mono_class_inflate_generic_type_checked (type
, context
, &error
);
715 if (!mono_error_ok (&error
)) {
716 mono_error_cleanup (&error
);
723 * mono_class_inflate_generic_type:
725 * @context: a generics context
726 * @error: error context to use
728 * If @type is a generic type and @context is not NULL, instantiate it using the
729 * generics context @context.
731 * Returns: the instantiated type or a copy of @type. The returned MonoType is allocated
732 * on the heap and is owned by the caller.
735 mono_class_inflate_generic_type_checked (MonoType
*type
, MonoGenericContext
*context
, MonoError
*error
)
737 return mono_class_inflate_generic_type_with_mempool (NULL
, type
, context
, error
);
741 * mono_class_inflate_generic_type_no_copy:
743 * Same as inflate_generic_type_with_mempool, but return TYPE if no inflation
747 mono_class_inflate_generic_type_no_copy (MonoImage
*image
, MonoType
*type
, MonoGenericContext
*context
)
750 MonoType
*inflated
= NULL
;
753 inflated
= inflate_generic_type (image
, type
, context
, &error
);
754 g_assert (mono_error_ok (&error
)); /*FIXME proper error handling*/
760 mono_stats
.inflated_type_count
++;
765 mono_class_inflate_generic_class_checked (MonoClass
*gklass
, MonoGenericContext
*context
, MonoError
*error
)
770 inflated
= mono_class_inflate_generic_type_checked (&gklass
->byval_arg
, context
, error
);
771 if (!mono_error_ok (error
))
774 res
= mono_class_from_mono_type (inflated
);
775 mono_metadata_free_type (inflated
);
780 * mono_class_inflate_generic_class:
782 * Inflate the class GKLASS with CONTEXT.
785 mono_class_inflate_generic_class (MonoClass
*gklass
, MonoGenericContext
*context
)
790 res
= mono_class_inflate_generic_class_checked (gklass
, context
, &error
);
791 g_assert (mono_error_ok (&error
)); /*FIXME proper error handling*/
798 static MonoGenericContext
799 inflate_generic_context (MonoGenericContext
*context
, MonoGenericContext
*inflate_with
, MonoError
*error
)
801 MonoGenericInst
*class_inst
= NULL
;
802 MonoGenericInst
*method_inst
= NULL
;
803 MonoGenericContext res
= { NULL
, NULL
};
805 mono_error_init (error
);
807 if (context
->class_inst
) {
808 class_inst
= mono_metadata_inflate_generic_inst (context
->class_inst
, inflate_with
, error
);
809 if (!mono_error_ok (error
))
813 if (context
->method_inst
) {
814 method_inst
= mono_metadata_inflate_generic_inst (context
->method_inst
, inflate_with
, error
);
815 if (!mono_error_ok (error
))
819 res
.class_inst
= class_inst
;
820 res
.method_inst
= method_inst
;
826 * mono_class_inflate_generic_method:
827 * @method: a generic method
828 * @context: a generics context
830 * Instantiate the generic method @method using the generics context @context.
832 * Returns: the new instantiated method
835 mono_class_inflate_generic_method (MonoMethod
*method
, MonoGenericContext
*context
)
837 return mono_class_inflate_generic_method_full (method
, NULL
, context
);
841 * mono_class_inflate_generic_method_full:
843 * Instantiate method @method with the generic context @context.
844 * BEWARE: All non-trivial fields are invalid, including klass, signature, and header.
845 * Use mono_method_signature () and mono_method_get_header () to get the correct values.
848 mono_class_inflate_generic_method_full (MonoMethod
*method
, MonoClass
*klass_hint
, MonoGenericContext
*context
)
851 MonoMethod
*res
= mono_class_inflate_generic_method_full_checked (method
, klass_hint
, context
, &error
);
852 if (!mono_error_ok (&error
))
853 /*FIXME do proper error handling - on this case, kill this function. */
854 g_error ("Could not inflate generic method due to %s", mono_error_get_message (&error
));
860 * mono_class_inflate_generic_method_full_checked:
861 * Same as mono_class_inflate_generic_method_full but return failure using @error.
864 mono_class_inflate_generic_method_full_checked (MonoMethod
*method
, MonoClass
*klass_hint
, MonoGenericContext
*context
, MonoError
*error
)
867 MonoMethodInflated
*iresult
, *cached
;
868 MonoMethodSignature
*sig
;
869 MonoGenericContext tmp_context
;
870 gboolean is_mb_open
= FALSE
;
872 mono_error_init (error
);
874 /* The `method' has already been instantiated before => we need to peel out the instantiation and create a new context */
875 while (method
->is_inflated
) {
876 MonoGenericContext
*method_context
= mono_method_get_context (method
);
877 MonoMethodInflated
*imethod
= (MonoMethodInflated
*) method
;
879 tmp_context
= inflate_generic_context (method_context
, context
, error
);
880 if (!mono_error_ok (error
))
882 context
= &tmp_context
;
884 if (mono_metadata_generic_context_equal (method_context
, context
))
887 method
= imethod
->declaring
;
890 if (!method
->is_generic
&& !method
->klass
->generic_container
)
894 * The reason for this hack is to fix the behavior of inflating generic methods that come from a MethodBuilder.
895 * What happens is that instantiating a generic MethodBuilder with its own arguments should create a diferent object.
896 * This is opposite to the way non-SRE MethodInfos behave.
898 * This happens, for example, when we want to emit a recursive generic method. Given the following C# code:
900 * void Example<T> () {
904 * In Example, the method token must be encoded as: "void Example<!!0>()"
906 * The reference to the first generic argument, "!!0", must be explicit otherwise it won't be inflated
907 * properly. To get that we need to inflate the MethodBuilder with its own arguments.
909 * On the other hand, inflating a non-SRE generic method with its own arguments should
910 * return itself. For example:
912 * MethodInfo m = ... //m is a generic method definition
913 * MethodInfo res = m.MakeGenericMethod (m.GetGenericArguments ());
916 * To allow such scenarios we must allow inflation of MethodBuilder to happen in a diferent way than
917 * what happens with regular methods.
919 * There is one last touch to this madness, once a TypeBuilder is finished, IOW CreateType() is called,
920 * everything should behave like a regular type or method.
923 is_mb_open
= method
->is_generic
&&
924 method
->klass
->image
->dynamic
&& !method
->klass
->wastypebuilder
&& /* that is a MethodBuilder from an unfinished TypeBuilder */
925 context
->method_inst
== mono_method_get_generic_container (method
)->context
.method_inst
; /* and it's been instantiated with its own arguments. */
927 iresult
= g_new0 (MonoMethodInflated
, 1);
928 iresult
->context
= *context
;
929 iresult
->declaring
= method
;
930 iresult
->method
.method
.is_mb_open
= is_mb_open
;
932 if (!context
->method_inst
&& method
->is_generic
)
933 iresult
->context
.method_inst
= mono_method_get_generic_container (method
)->context
.method_inst
;
935 if (!context
->class_inst
) {
936 g_assert (!iresult
->declaring
->klass
->generic_class
);
937 if (iresult
->declaring
->klass
->generic_container
)
938 iresult
->context
.class_inst
= iresult
->declaring
->klass
->generic_container
->context
.class_inst
;
939 else if (iresult
->declaring
->klass
->generic_class
)
940 iresult
->context
.class_inst
= iresult
->declaring
->klass
->generic_class
->context
.class_inst
;
944 cached
= mono_method_inflated_lookup (iresult
, FALSE
);
946 mono_loader_unlock ();
948 return (MonoMethod
*)cached
;
951 mono_stats
.inflated_method_count
++;
953 inflated_methods_size
+= sizeof (MonoMethodInflated
);
955 sig
= mono_method_signature (method
);
957 char *name
= mono_type_get_full_name (method
->klass
);
958 mono_error_set_bad_image (error
, method
->klass
->image
, "Could not resolve signature of method %s:%s", name
, method
->name
);
964 memcpy (&iresult
->method
.pinvoke
, method
, sizeof (MonoMethodPInvoke
));
966 memcpy (&iresult
->method
.method
, method
, sizeof (MonoMethod
));
969 result
= (MonoMethod
*) iresult
;
970 result
->is_inflated
= TRUE
;
971 result
->is_generic
= FALSE
;
972 result
->sre_method
= FALSE
;
973 result
->signature
= NULL
;
974 result
->is_mb_open
= is_mb_open
;
976 if (!context
->method_inst
) {
977 /* Set the generic_container of the result to the generic_container of method */
978 MonoGenericContainer
*generic_container
= mono_method_get_generic_container (method
);
980 if (generic_container
) {
981 result
->is_generic
= 1;
982 mono_method_set_generic_container (result
, generic_container
);
986 if (!klass_hint
|| !klass_hint
->generic_class
||
987 klass_hint
->generic_class
->container_class
!= method
->klass
||
988 klass_hint
->generic_class
->context
.class_inst
!= context
->class_inst
)
991 if (method
->klass
->generic_container
)
992 result
->klass
= klass_hint
;
994 if (!result
->klass
) {
995 MonoType
*inflated
= inflate_generic_type (NULL
, &method
->klass
->byval_arg
, context
, error
);
996 if (!mono_error_ok (error
))
999 result
->klass
= inflated
? mono_class_from_mono_type (inflated
) : method
->klass
;
1001 mono_metadata_free_type (inflated
);
1004 mono_method_inflated_lookup (iresult
, TRUE
);
1005 mono_loader_unlock ();
1009 mono_loader_unlock ();
1015 * mono_get_inflated_method:
1017 * Obsolete. We keep it around since it's mentioned in the public API.
1020 mono_get_inflated_method (MonoMethod
*method
)
1026 * mono_method_get_context_general:
1028 * @uninflated: handle uninflated methods?
1030 * Returns the generic context of a method or NULL if it doesn't have
1031 * one. For an inflated method that's the context stored in the
1032 * method. Otherwise it's in the method's generic container or in the
1033 * generic container of the method's class.
1036 mono_method_get_context_general (MonoMethod
*method
, gboolean uninflated
)
1038 if (method
->is_inflated
) {
1039 MonoMethodInflated
*imethod
= (MonoMethodInflated
*) method
;
1040 return &imethod
->context
;
1044 if (method
->is_generic
)
1045 return &(mono_method_get_generic_container (method
)->context
);
1046 if (method
->klass
->generic_container
)
1047 return &method
->klass
->generic_container
->context
;
1052 * mono_method_get_context:
1055 * Returns the generic context for method if it's inflated, otherwise
1059 mono_method_get_context (MonoMethod
*method
)
1061 return mono_method_get_context_general (method
, FALSE
);
1065 * mono_method_get_generic_container:
1067 * Returns the generic container of METHOD, which should be a generic method definition.
1068 * Returns NULL if METHOD is not a generic method definition.
1069 * LOCKING: Acquires the loader lock.
1071 MonoGenericContainer
*
1072 mono_method_get_generic_container (MonoMethod
*method
)
1074 MonoGenericContainer
*container
;
1076 if (!method
->is_generic
)
1079 container
= mono_image_property_lookup (method
->klass
->image
, method
, MONO_METHOD_PROP_GENERIC_CONTAINER
);
1080 g_assert (container
);
1086 * mono_method_set_generic_container:
1088 * Sets the generic container of METHOD to CONTAINER.
1089 * LOCKING: Acquires the loader lock.
1092 mono_method_set_generic_container (MonoMethod
*method
, MonoGenericContainer
* container
)
1094 g_assert (method
->is_generic
);
1096 mono_image_property_insert (method
->klass
->image
, method
, MONO_METHOD_PROP_GENERIC_CONTAINER
, container
);
1100 * mono_class_find_enum_basetype:
1101 * @class: The enum class
1103 * Determine the basetype of an enum by iterating through its fields. We do this
1104 * in a separate function since it is cheaper than calling mono_class_setup_fields.
1107 mono_class_find_enum_basetype (MonoClass
*class)
1109 MonoGenericContainer
*container
= NULL
;
1110 MonoImage
*m
= class->image
;
1111 const int top
= class->field
.count
;
1114 g_assert (class->enumtype
);
1116 if (class->generic_container
)
1117 container
= class->generic_container
;
1118 else if (class->generic_class
) {
1119 MonoClass
*gklass
= class->generic_class
->container_class
;
1121 container
= gklass
->generic_container
;
1122 g_assert (container
);
1126 * Fetch all the field information.
1128 for (i
= 0; i
< top
; i
++){
1130 guint32 cols
[MONO_FIELD_SIZE
];
1131 int idx
= class->field
.first
+ i
;
1134 /* class->field.first and idx points into the fieldptr table */
1135 mono_metadata_decode_table_row (m
, MONO_TABLE_FIELD
, idx
, cols
, MONO_FIELD_SIZE
);
1137 if (cols
[MONO_FIELD_FLAGS
] & FIELD_ATTRIBUTE_STATIC
) //no need to decode static fields
1140 if (!mono_verifier_verify_field_signature (class->image
, cols
[MONO_FIELD_SIGNATURE
], NULL
))
1143 sig
= mono_metadata_blob_heap (m
, cols
[MONO_FIELD_SIGNATURE
]);
1144 mono_metadata_decode_value (sig
, &sig
);
1145 /* FIELD signature == 0x06 */
1149 ftype
= mono_metadata_parse_type_full (m
, container
, MONO_PARSE_FIELD
, cols
[MONO_FIELD_FLAGS
], sig
+ 1, &sig
);
1152 if (class->generic_class
) {
1153 //FIXME do we leak here?
1154 ftype
= mono_class_inflate_generic_type (ftype
, mono_class_get_context (class));
1155 ftype
->attrs
= cols
[MONO_FIELD_FLAGS
];
1165 * Checks for MonoClass::exception_type without resolving all MonoType's into MonoClass'es
1168 mono_type_has_exceptions (MonoType
*type
)
1170 switch (type
->type
) {
1171 case MONO_TYPE_CLASS
:
1172 case MONO_TYPE_VALUETYPE
:
1173 case MONO_TYPE_SZARRAY
:
1174 return type
->data
.klass
->exception_type
;
1175 case MONO_TYPE_ARRAY
:
1176 return type
->data
.array
->eklass
->exception_type
;
1177 case MONO_TYPE_GENERICINST
:
1178 return mono_generic_class_get_class (type
->data
.generic_class
)->exception_type
;
1184 * mono_class_setup_fields:
1185 * @class: The class to initialize
1187 * Initializes the class->fields.
1188 * LOCKING: Assumes the loader lock is held.
1191 mono_class_setup_fields (MonoClass
*class)
1193 MonoImage
*m
= class->image
;
1194 int top
= class->field
.count
;
1195 guint32 layout
= class->flags
& TYPE_ATTRIBUTE_LAYOUT_MASK
;
1196 int i
, blittable
= TRUE
;
1197 guint32 real_size
= 0;
1198 guint32 packing_size
= 0;
1199 gboolean explicit_size
;
1200 MonoClassField
*field
;
1201 MonoGenericContainer
*container
= NULL
;
1202 MonoClass
*gtd
= class->generic_class
? mono_class_get_generic_type_definition (class) : NULL
;
1204 if (class->size_inited
)
1207 if (class->generic_class
&& class->generic_class
->container_class
->image
->dynamic
&& !class->generic_class
->container_class
->wastypebuilder
) {
1209 * This happens when a generic instance of an unfinished generic typebuilder
1210 * is used as an element type for creating an array type. We can't initialize
1211 * the fields of this class using the fields of gklass, since gklass is not
1212 * finished yet, fields could be added to it later.
1218 mono_class_setup_fields (gtd
);
1219 if (gtd
->exception_type
) {
1220 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
1224 top
= gtd
->field
.count
;
1225 class->field
.first
= gtd
->field
.first
;
1226 class->field
.count
= gtd
->field
.count
;
1229 class->instance_size
= 0;
1231 class->sizes
.class_size
= 0;
1233 if (class->parent
) {
1234 /* For generic instances, class->parent might not have been initialized */
1235 mono_class_init (class->parent
);
1236 if (!class->parent
->size_inited
) {
1237 mono_class_setup_fields (class->parent
);
1238 if (class->parent
->exception_type
) {
1239 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
1243 class->instance_size
+= class->parent
->instance_size
;
1244 class->min_align
= class->parent
->min_align
;
1245 /* we use |= since it may have been set already */
1246 class->has_references
|= class->parent
->has_references
;
1247 blittable
= class->parent
->blittable
;
1249 class->instance_size
= sizeof (MonoObject
);
1250 class->min_align
= 1;
1253 /* We can't really enable 16 bytes alignment until the GC supports it.
1254 The whole layout/instance size code must be reviewed because we do alignment calculation in terms of the
1255 boxed instance, which leads to unexplainable holes at the beginning of an object embedding a simd type.
1256 Bug #506144 is an example of this issue.
1258 if (class->simd_type)
1259 class->min_align = 16;
1261 /* Get the real size */
1262 explicit_size
= mono_metadata_packing_from_typedef (class->image
, class->type_token
, &packing_size
, &real_size
);
1264 if (explicit_size
) {
1265 g_assert ((packing_size
& 0xfffffff0) == 0);
1266 class->packing_size
= packing_size
;
1267 real_size
+= class->instance_size
;
1271 if (explicit_size
&& real_size
) {
1272 class->instance_size
= MAX (real_size
, class->instance_size
);
1274 class->size_inited
= 1;
1275 class->blittable
= blittable
;
1279 if (layout
== TYPE_ATTRIBUTE_AUTO_LAYOUT
)
1282 /* Prevent infinite loops if the class references itself */
1283 class->size_inited
= 1;
1285 class->fields
= mono_image_alloc0 (class->image
, sizeof (MonoClassField
) * top
);
1287 if (class->generic_container
) {
1288 container
= class->generic_container
;
1290 container
= gtd
->generic_container
;
1291 g_assert (container
);
1295 * Fetch all the field information.
1297 for (i
= 0; i
< top
; i
++){
1298 int idx
= class->field
.first
+ i
;
1299 field
= &class->fields
[i
];
1301 field
->parent
= class;
1304 MonoClassField
*gfield
= >d
->fields
[i
];
1306 field
->name
= mono_field_get_name (gfield
);
1307 /*This memory must come from the image mempool as we don't have a chance to free it.*/
1308 field
->type
= mono_class_inflate_generic_type_no_copy (class->image
, gfield
->type
, mono_class_get_context (class));
1309 g_assert (field
->type
->attrs
== gfield
->type
->attrs
);
1310 if (mono_field_is_deleted (field
))
1312 field
->offset
= gfield
->offset
;
1315 guint32 cols
[MONO_FIELD_SIZE
];
1317 /* class->field.first and idx points into the fieldptr table */
1318 mono_metadata_decode_table_row (m
, MONO_TABLE_FIELD
, idx
, cols
, MONO_FIELD_SIZE
);
1319 /* The name is needed for fieldrefs */
1320 field
->name
= mono_metadata_string_heap (m
, cols
[MONO_FIELD_NAME
]);
1321 if (!mono_verifier_verify_field_signature (class->image
, cols
[MONO_FIELD_SIGNATURE
], NULL
)) {
1322 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
1325 sig
= mono_metadata_blob_heap (m
, cols
[MONO_FIELD_SIGNATURE
]);
1326 mono_metadata_decode_value (sig
, &sig
);
1327 /* FIELD signature == 0x06 */
1328 g_assert (*sig
== 0x06);
1329 field
->type
= mono_metadata_parse_type_full (m
, container
, MONO_PARSE_FIELD
, cols
[MONO_FIELD_FLAGS
], sig
+ 1, &sig
);
1331 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
1334 if (mono_field_is_deleted (field
))
1336 if (layout
== TYPE_ATTRIBUTE_EXPLICIT_LAYOUT
) {
1338 mono_metadata_field_info (m
, idx
, &offset
, NULL
, NULL
);
1339 field
->offset
= offset
;
1341 if (field
->offset
== (guint32
)-1 && !(field
->type
->attrs
& FIELD_ATTRIBUTE_STATIC
)) {
1342 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup_printf ("Missing field layout info for %s", field
->name
));
1345 if (field
->offset
< -1) { /*-1 is used to encode special static fields */
1346 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup_printf ("Invalid negative field offset %d for %s", field
->offset
, field
->name
));
1352 /* Only do these checks if we still think this type is blittable */
1353 if (blittable
&& !(field
->type
->attrs
& FIELD_ATTRIBUTE_STATIC
)) {
1354 if (field
->type
->byref
|| MONO_TYPE_IS_REFERENCE (field
->type
)) {
1357 MonoClass
*field_class
= mono_class_from_mono_type (field
->type
);
1359 mono_class_setup_fields (field_class
);
1360 if (field_class
->exception_type
) {
1361 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
1365 if (!field_class
|| !field_class
->blittable
)
1370 if (class->enumtype
&& !(field
->type
->attrs
& FIELD_ATTRIBUTE_STATIC
)) {
1371 class->cast_class
= class->element_class
= mono_class_from_mono_type (field
->type
);
1372 blittable
= class->element_class
->blittable
;
1375 if (mono_type_has_exceptions (field
->type
)) {
1376 char *class_name
= mono_type_get_full_name (class);
1377 char *type_name
= mono_type_full_name (field
->type
);
1379 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
1380 g_warning ("Invalid type %s for instance field %s:%s", type_name
, class_name
, field
->name
);
1381 g_free (class_name
);
1385 /* The def_value of fields is compute lazily during vtable creation */
1388 if (class == mono_defaults
.string_class
)
1391 class->blittable
= blittable
;
1393 if (class->enumtype
&& !mono_class_enum_basetype (class)) {
1394 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
1397 if (explicit_size
&& real_size
) {
1398 class->instance_size
= MAX (real_size
, class->instance_size
);
1401 if (class->exception_type
)
1403 mono_class_layout_fields (class);
1405 /*valuetypes can't be neither bigger than 1Mb or empty. */
1406 if (class->valuetype
&& (class->instance_size
<= 0 || class->instance_size
> (0x100000 + sizeof (MonoObject
))))
1407 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
1411 * mono_class_setup_fields_locking:
1412 * @class: The class to initialize
1414 * Initializes the class->fields array of fields.
1415 * Aquires the loader lock.
1418 mono_class_setup_fields_locking (MonoClass
*class)
1420 mono_loader_lock ();
1421 mono_class_setup_fields (class);
1422 mono_loader_unlock ();
1426 * mono_class_has_references:
1428 * Returns whenever @klass->has_references is set, initializing it if needed.
1429 * Aquires the loader lock.
1432 mono_class_has_references (MonoClass
*klass
)
1434 if (klass
->init_pending
) {
1435 /* Be conservative */
1438 mono_class_init (klass
);
1440 return klass
->has_references
;
1444 /* useful until we keep track of gc-references in corlib etc. */
1446 #define IS_GC_REFERENCE(t) FALSE
1448 #define IS_GC_REFERENCE(t) ((t)->type == MONO_TYPE_U && class->image == mono_defaults.corlib)
1452 * mono_type_get_basic_type_from_generic:
1455 * Returns a closed type corresponding to the possibly open type
1459 mono_type_get_basic_type_from_generic (MonoType
*type
)
1461 /* When we do generic sharing we let type variables stand for reference types. */
1462 if (!type
->byref
&& (type
->type
== MONO_TYPE_VAR
|| type
->type
== MONO_TYPE_MVAR
))
1463 return &mono_defaults
.object_class
->byval_arg
;
1468 * mono_class_layout_fields:
1471 * Compute the placement of fields inside an object or struct, according to
1472 * the layout rules and set the following fields in @class:
1473 * - has_references (if the class contains instance references firled or structs that contain references)
1474 * - has_static_refs (same, but for static fields)
1475 * - instance_size (size of the object in memory)
1476 * - class_size (size needed for the static fields)
1477 * - size_inited (flag set when the instance_size is set)
1479 * LOCKING: this is supposed to be called with the loader lock held.
1482 mono_class_layout_fields (MonoClass
*class)
1485 const int top
= class->field
.count
;
1486 guint32 layout
= class->flags
& TYPE_ATTRIBUTE_LAYOUT_MASK
;
1487 guint32 pass
, passes
, real_size
;
1488 gboolean gc_aware_layout
= FALSE
;
1489 MonoClassField
*field
;
1492 * When we do generic sharing we need to have layout
1493 * information for open generic classes (either with a generic
1494 * context containing type variables or with a generic
1495 * container), so we don't return in that case anymore.
1499 * Enable GC aware auto layout: in this mode, reference
1500 * fields are grouped together inside objects, increasing collector
1502 * Requires that all classes whose layout is known to native code be annotated
1503 * with [StructLayout (LayoutKind.Sequential)]
1504 * Value types have gc_aware_layout disabled by default, as per
1505 * what the default is for other runtimes.
1507 /* corlib is missing [StructLayout] directives in many places */
1508 if (layout
== TYPE_ATTRIBUTE_AUTO_LAYOUT
) {
1509 if (class->image
!= mono_defaults
.corlib
&&
1510 class->byval_arg
.type
!= MONO_TYPE_VALUETYPE
)
1511 gc_aware_layout
= TRUE
;
1512 /* from System.dll, used in metadata/process.h */
1513 if (strcmp (class->name
, "ProcessStartInfo") == 0)
1514 gc_aware_layout
= FALSE
;
1517 /* Compute klass->has_references */
1519 * Process non-static fields first, since static fields might recursively
1520 * refer to the class itself.
1522 for (i
= 0; i
< top
; i
++) {
1525 field
= &class->fields
[i
];
1527 if (!(field
->type
->attrs
& FIELD_ATTRIBUTE_STATIC
)) {
1528 ftype
= mono_type_get_underlying_type (field
->type
);
1529 ftype
= mono_type_get_basic_type_from_generic (ftype
);
1530 if (MONO_TYPE_IS_REFERENCE (ftype
) || IS_GC_REFERENCE (ftype
) || ((MONO_TYPE_ISSTRUCT (ftype
) && mono_class_has_references (mono_class_from_mono_type (ftype
)))))
1531 class->has_references
= TRUE
;
1535 for (i
= 0; i
< top
; i
++) {
1538 field
= &class->fields
[i
];
1540 if (field
->type
->attrs
& FIELD_ATTRIBUTE_STATIC
) {
1541 ftype
= mono_type_get_underlying_type (field
->type
);
1542 ftype
= mono_type_get_basic_type_from_generic (ftype
);
1543 if (MONO_TYPE_IS_REFERENCE (ftype
) || IS_GC_REFERENCE (ftype
) || ((MONO_TYPE_ISSTRUCT (ftype
) && mono_class_has_references (mono_class_from_mono_type (ftype
)))))
1544 class->has_static_refs
= TRUE
;
1548 for (i
= 0; i
< top
; i
++) {
1551 field
= &class->fields
[i
];
1553 ftype
= mono_type_get_underlying_type (field
->type
);
1554 ftype
= mono_type_get_basic_type_from_generic (ftype
);
1555 if (MONO_TYPE_IS_REFERENCE (ftype
) || IS_GC_REFERENCE (ftype
) || ((MONO_TYPE_ISSTRUCT (ftype
) && mono_class_has_references (mono_class_from_mono_type (ftype
))))) {
1556 if (field
->type
->attrs
& FIELD_ATTRIBUTE_STATIC
)
1557 class->has_static_refs
= TRUE
;
1559 class->has_references
= TRUE
;
1564 * Compute field layout and total size (not considering static fields)
1568 case TYPE_ATTRIBUTE_AUTO_LAYOUT
:
1569 case TYPE_ATTRIBUTE_SEQUENTIAL_LAYOUT
:
1571 if (gc_aware_layout
)
1576 if (layout
!= TYPE_ATTRIBUTE_AUTO_LAYOUT
)
1580 real_size
= class->parent
->instance_size
;
1582 real_size
= sizeof (MonoObject
);
1584 for (pass
= 0; pass
< passes
; ++pass
) {
1585 for (i
= 0; i
< top
; i
++){
1590 field
= &class->fields
[i
];
1592 if (mono_field_is_deleted (field
))
1594 if (field
->type
->attrs
& FIELD_ATTRIBUTE_STATIC
)
1597 ftype
= mono_type_get_underlying_type (field
->type
);
1598 ftype
= mono_type_get_basic_type_from_generic (ftype
);
1599 if (gc_aware_layout
) {
1600 if (MONO_TYPE_IS_REFERENCE (ftype
) || IS_GC_REFERENCE (ftype
) || ((MONO_TYPE_ISSTRUCT (ftype
) && mono_class_has_references (mono_class_from_mono_type (ftype
))))) {
1609 if ((top
== 1) && (class->instance_size
== sizeof (MonoObject
)) &&
1610 (strcmp (mono_field_get_name (field
), "$PRIVATE$") == 0)) {
1611 /* This field is a hack inserted by MCS to empty structures */
1615 size
= mono_type_size (field
->type
, &align
);
1617 /* FIXME (LAMESPEC): should we also change the min alignment according to pack? */
1618 align
= class->packing_size
? MIN (class->packing_size
, align
): align
;
1619 /* if the field has managed references, we need to force-align it
1622 if (MONO_TYPE_IS_REFERENCE (ftype
) || IS_GC_REFERENCE (ftype
) || ((MONO_TYPE_ISSTRUCT (ftype
) && mono_class_has_references (mono_class_from_mono_type (ftype
)))))
1623 align
= MAX (align
, sizeof (gpointer
));
1625 class->min_align
= MAX (align
, class->min_align
);
1626 field
->offset
= real_size
;
1627 field
->offset
+= align
- 1;
1628 field
->offset
&= ~(align
- 1);
1629 real_size
= field
->offset
+ size
;
1632 class->instance_size
= MAX (real_size
, class->instance_size
);
1634 if (class->instance_size
& (class->min_align
- 1)) {
1635 class->instance_size
+= class->min_align
- 1;
1636 class->instance_size
&= ~(class->min_align
- 1);
1640 case TYPE_ATTRIBUTE_EXPLICIT_LAYOUT
:
1642 for (i
= 0; i
< top
; i
++) {
1647 field
= &class->fields
[i
];
1650 * There must be info about all the fields in a type if it
1651 * uses explicit layout.
1654 if (mono_field_is_deleted (field
))
1656 if (field
->type
->attrs
& FIELD_ATTRIBUTE_STATIC
)
1659 size
= mono_type_size (field
->type
, &align
);
1660 class->min_align
= MAX (align
, class->min_align
);
1663 * When we get here, field->offset is already set by the
1664 * loader (for either runtime fields or fields loaded from metadata).
1665 * The offset is from the start of the object: this works for both
1666 * classes and valuetypes.
1668 field
->offset
+= sizeof (MonoObject
);
1669 ftype
= mono_type_get_underlying_type (field
->type
);
1670 ftype
= mono_type_get_basic_type_from_generic (ftype
);
1671 if (MONO_TYPE_IS_REFERENCE (ftype
) || ((MONO_TYPE_ISSTRUCT (ftype
) && mono_class_has_references (mono_class_from_mono_type (ftype
))))) {
1672 if (field
->offset
% sizeof (gpointer
)) {
1673 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
1680 real_size
= MAX (real_size
, size
+ field
->offset
);
1682 class->instance_size
= MAX (real_size
, class->instance_size
);
1686 if (layout
!= TYPE_ATTRIBUTE_EXPLICIT_LAYOUT
) {
1688 * For small structs, set min_align to at least the struct size to improve
1689 * performance, and since the JIT memset/memcpy code assumes this and generates
1690 * unaligned accesses otherwise. See #78990 for a testcase.
1692 if (class->instance_size
<= sizeof (MonoObject
) + sizeof (gpointer
))
1693 class->min_align
= MAX (class->min_align
, class->instance_size
- sizeof (MonoObject
));
1696 class->size_inited
= 1;
1699 * Compute static field layout and size
1701 for (i
= 0; i
< top
; i
++){
1705 field
= &class->fields
[i
];
1707 if (!(field
->type
->attrs
& FIELD_ATTRIBUTE_STATIC
) || field
->type
->attrs
& FIELD_ATTRIBUTE_LITERAL
)
1709 if (mono_field_is_deleted (field
))
1712 if (mono_type_has_exceptions (field
->type
)) {
1713 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
1717 size
= mono_type_size (field
->type
, &align
);
1718 field
->offset
= class->sizes
.class_size
;
1719 field
->offset
+= align
- 1;
1720 field
->offset
&= ~(align
- 1);
1721 class->sizes
.class_size
= field
->offset
+ size
;
1726 create_array_method (MonoClass
*class, const char *name
, MonoMethodSignature
*sig
)
1730 method
= (MonoMethod
*) mono_image_alloc0 (class->image
, sizeof (MonoMethodPInvoke
));
1731 method
->klass
= class;
1732 method
->flags
= METHOD_ATTRIBUTE_PUBLIC
;
1733 method
->iflags
= METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL
;
1734 method
->signature
= sig
;
1735 method
->name
= name
;
1738 if (name
[0] == '.') {
1739 method
->flags
|= METHOD_ATTRIBUTE_RT_SPECIAL_NAME
| METHOD_ATTRIBUTE_SPECIAL_NAME
;
1741 method
->iflags
|= METHOD_IMPL_ATTRIBUTE_RUNTIME
;
1747 * mono_class_setup_methods:
1750 * Initializes the 'methods' array in the klass.
1751 * Calling this method should be avoided if possible since it allocates a lot
1752 * of long-living MonoMethod structures.
1753 * Methods belonging to an interface are assigned a sequential slot starting
1756 * On failure this function sets class->exception_type
1759 mono_class_setup_methods (MonoClass
*class)
1762 MonoMethod
**methods
;
1767 mono_loader_lock ();
1769 if (class->methods
) {
1770 mono_loader_unlock ();
1774 if (class->generic_class
) {
1776 MonoClass
*gklass
= class->generic_class
->container_class
;
1778 mono_class_init (gklass
);
1779 if (!gklass
->exception_type
)
1780 mono_class_setup_methods (gklass
);
1781 if (gklass
->exception_type
) {
1782 /*FIXME make exception_data less opaque so it's possible to dup it here*/
1783 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup ("Generic type definition failed to load"));
1784 mono_loader_unlock ();
1788 /* The + 1 makes this always non-NULL to pass the check in mono_class_setup_methods () */
1789 class->method
.count
= gklass
->method
.count
;
1790 methods
= g_new0 (MonoMethod
*, class->method
.count
+ 1);
1792 for (i
= 0; i
< class->method
.count
; i
++) {
1793 methods
[i
] = mono_class_inflate_generic_method_full_checked (
1794 gklass
->methods
[i
], class, mono_class_get_context (class), &error
);
1795 if (!mono_error_ok (&error
)) {
1796 char *method
= mono_method_full_name (gklass
->methods
[i
], TRUE
);
1797 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup_printf ("Could not inflate method %s due to %s", method
, mono_error_get_message (&error
)));
1800 mono_error_cleanup (&error
);
1801 mono_loader_unlock ();
1805 } else if (class->rank
) {
1807 MonoMethod
*amethod
;
1808 MonoMethodSignature
*sig
;
1809 int count_generic
= 0, first_generic
= 0;
1812 class->method
.count
= 3 + (class->rank
> 1? 2: 1);
1814 mono_class_setup_interfaces (class, &error
);
1815 g_assert (mono_error_ok (&error
)); /*FIXME can this fail for array types?*/
1817 if (class->interface_count
) {
1818 count_generic
= generic_array_methods (class);
1819 first_generic
= class->method
.count
;
1820 class->method
.count
+= class->interface_count
* count_generic
;
1823 methods
= mono_image_alloc0 (class->image
, sizeof (MonoMethod
*) * class->method
.count
);
1825 sig
= mono_metadata_signature_alloc (class->image
, class->rank
);
1826 sig
->ret
= &mono_defaults
.void_class
->byval_arg
;
1827 sig
->pinvoke
= TRUE
;
1828 sig
->hasthis
= TRUE
;
1829 for (i
= 0; i
< class->rank
; ++i
)
1830 sig
->params
[i
] = &mono_defaults
.int32_class
->byval_arg
;
1832 amethod
= create_array_method (class, ".ctor", sig
);
1833 methods
[method_num
++] = amethod
;
1834 if (class->rank
> 1) {
1835 sig
= mono_metadata_signature_alloc (class->image
, class->rank
* 2);
1836 sig
->ret
= &mono_defaults
.void_class
->byval_arg
;
1837 sig
->pinvoke
= TRUE
;
1838 sig
->hasthis
= TRUE
;
1839 for (i
= 0; i
< class->rank
* 2; ++i
)
1840 sig
->params
[i
] = &mono_defaults
.int32_class
->byval_arg
;
1842 amethod
= create_array_method (class, ".ctor", sig
);
1843 methods
[method_num
++] = amethod
;
1845 /* element Get (idx11, [idx2, ...]) */
1846 sig
= mono_metadata_signature_alloc (class->image
, class->rank
);
1847 sig
->ret
= &class->element_class
->byval_arg
;
1848 sig
->pinvoke
= TRUE
;
1849 sig
->hasthis
= TRUE
;
1850 for (i
= 0; i
< class->rank
; ++i
)
1851 sig
->params
[i
] = &mono_defaults
.int32_class
->byval_arg
;
1852 amethod
= create_array_method (class, "Get", sig
);
1853 methods
[method_num
++] = amethod
;
1854 /* element& Address (idx11, [idx2, ...]) */
1855 sig
= mono_metadata_signature_alloc (class->image
, class->rank
);
1856 sig
->ret
= &class->element_class
->this_arg
;
1857 sig
->pinvoke
= TRUE
;
1858 sig
->hasthis
= TRUE
;
1859 for (i
= 0; i
< class->rank
; ++i
)
1860 sig
->params
[i
] = &mono_defaults
.int32_class
->byval_arg
;
1861 amethod
= create_array_method (class, "Address", sig
);
1862 methods
[method_num
++] = amethod
;
1863 /* void Set (idx11, [idx2, ...], element) */
1864 sig
= mono_metadata_signature_alloc (class->image
, class->rank
+ 1);
1865 sig
->ret
= &mono_defaults
.void_class
->byval_arg
;
1866 sig
->pinvoke
= TRUE
;
1867 sig
->hasthis
= TRUE
;
1868 for (i
= 0; i
< class->rank
; ++i
)
1869 sig
->params
[i
] = &mono_defaults
.int32_class
->byval_arg
;
1870 sig
->params
[i
] = &class->element_class
->byval_arg
;
1871 amethod
= create_array_method (class, "Set", sig
);
1872 methods
[method_num
++] = amethod
;
1874 for (i
= 0; i
< class->interface_count
; i
++)
1875 setup_generic_array_ifaces (class, class->interfaces
[i
], methods
, first_generic
+ i
* count_generic
);
1877 methods
= mono_image_alloc (class->image
, sizeof (MonoMethod
*) * class->method
.count
);
1878 for (i
= 0; i
< class->method
.count
; ++i
) {
1879 int idx
= mono_metadata_translate_token_index (class->image
, MONO_TABLE_METHOD
, class->method
.first
+ i
+ 1);
1880 methods
[i
] = mono_get_method (class->image
, MONO_TOKEN_METHOD_DEF
| idx
, class);
1884 if (MONO_CLASS_IS_INTERFACE (class)) {
1886 /*Only assign slots to virtual methods as interfaces are allowed to have static methods.*/
1887 for (i
= 0; i
< class->method
.count
; ++i
) {
1888 if (methods
[i
]->flags
& METHOD_ATTRIBUTE_VIRTUAL
)
1889 methods
[i
]->slot
= slot
++;
1893 /* Needed because of the double-checking locking pattern */
1894 mono_memory_barrier ();
1896 class->methods
= methods
;
1898 if (mono_debugger_class_loaded_methods_func
)
1899 mono_debugger_class_loaded_methods_func (class);
1901 mono_loader_unlock ();
1905 * mono_class_get_method_by_index:
1907 * Returns class->methods [index], initializing class->methods if neccesary.
1909 * LOCKING: Acquires the loader lock.
1912 mono_class_get_method_by_index (MonoClass
*class, int index
)
1914 /* Avoid calling setup_methods () if possible */
1915 if (class->generic_class
&& !class->methods
) {
1916 MonoClass
*gklass
= class->generic_class
->container_class
;
1919 m
= mono_class_inflate_generic_method_full (
1920 gklass
->methods
[index
], class, mono_class_get_context (class));
1922 * If setup_methods () is called later for this class, no duplicates are created,
1923 * since inflate_generic_method guarantees that only one instance of a method
1924 * is created for each context.
1927 mono_class_setup_methods (class);
1928 g_assert (m == class->methods [index]);
1932 mono_class_setup_methods (class);
1933 g_assert (!class->exception_type
); /*FIXME do proper error handling*/
1934 g_assert (index
>= 0 && index
< class->method
.count
);
1935 return class->methods
[index
];
1940 * mono_class_get_inflated_method:
1942 * Given an inflated class CLASS and a method METHOD which should be a method of
1943 * CLASS's generic definition, return the inflated method corresponding to METHOD.
1946 mono_class_get_inflated_method (MonoClass
*class, MonoMethod
*method
)
1948 MonoClass
*gklass
= class->generic_class
->container_class
;
1951 g_assert (method
->klass
== gklass
);
1953 mono_class_setup_methods (gklass
);
1954 g_assert (!gklass
->exception_type
); /*FIXME do proper error handling*/
1956 for (i
= 0; i
< gklass
->method
.count
; ++i
) {
1957 if (gklass
->methods
[i
] == method
) {
1959 return class->methods
[i
];
1961 return mono_class_inflate_generic_method_full (gklass
->methods
[i
], class, mono_class_get_context (class));
1969 * mono_class_get_vtable_entry:
1971 * Returns class->vtable [offset], computing it if neccesary.
1972 * LOCKING: Acquires the loader lock.
1975 mono_class_get_vtable_entry (MonoClass
*class, int offset
)
1979 if (class->rank
== 1) {
1981 * szarrays do not overwrite any methods of Array, so we can avoid
1982 * initializing their vtables in some cases.
1984 mono_class_setup_vtable (class->parent
);
1985 if (offset
< class->parent
->vtable_size
)
1986 return class->parent
->vtable
[offset
];
1989 if (class->generic_class
) {
1990 MonoClass
*gklass
= class->generic_class
->container_class
;
1991 mono_class_setup_vtable (gklass
);
1992 m
= gklass
->vtable
[offset
];
1994 m
= mono_class_inflate_generic_method_full (m
, class, mono_class_get_context (class));
1996 mono_class_setup_vtable (class);
1997 m
= class->vtable
[offset
];
2004 * mono_class_get_vtable_size:
2006 * Return the vtable size for KLASS.
2009 mono_class_get_vtable_size (MonoClass
*klass
)
2011 mono_class_setup_vtable (klass
);
2013 return klass
->vtable_size
;
2016 /*This method can fail the class.*/
2018 mono_class_setup_properties (MonoClass
*class)
2020 guint startm
, endm
, i
, j
;
2021 guint32 cols
[MONO_PROPERTY_SIZE
];
2022 MonoTableInfo
*msemt
= &class->image
->tables
[MONO_TABLE_METHODSEMANTICS
];
2023 MonoProperty
*properties
;
2026 if (class->ext
&& class->ext
->properties
)
2029 mono_loader_lock ();
2031 if (class->ext
&& class->ext
->properties
) {
2032 mono_loader_unlock ();
2036 mono_class_alloc_ext (class);
2038 if (class->generic_class
) {
2039 MonoClass
*gklass
= class->generic_class
->container_class
;
2041 mono_class_init (gklass
);
2042 mono_class_setup_properties (gklass
);
2043 if (gklass
->exception_type
) {
2044 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup ("Generic type definition failed to load"));
2045 mono_loader_unlock ();
2049 class->ext
->property
= gklass
->ext
->property
;
2051 properties
= g_new0 (MonoProperty
, class->ext
->property
.count
+ 1);
2053 for (i
= 0; i
< class->ext
->property
.count
; i
++) {
2054 MonoProperty
*prop
= &properties
[i
];
2056 *prop
= gklass
->ext
->properties
[i
];
2059 prop
->get
= mono_class_inflate_generic_method_full (
2060 prop
->get
, class, mono_class_get_context (class));
2062 prop
->set
= mono_class_inflate_generic_method_full (
2063 prop
->set
, class, mono_class_get_context (class));
2065 prop
->parent
= class;
2068 int first
= mono_metadata_properties_from_typedef (class->image
, mono_metadata_token_index (class->type_token
) - 1, &last
);
2069 int count
= last
- first
;
2072 mono_class_setup_methods (class);
2073 if (class->exception_type
) {
2074 mono_loader_unlock ();
2079 class->ext
->property
.first
= first
;
2080 class->ext
->property
.count
= count
;
2081 properties
= mono_image_alloc0 (class->image
, sizeof (MonoProperty
) * count
);
2082 for (i
= first
; i
< last
; ++i
) {
2083 mono_metadata_decode_table_row (class->image
, MONO_TABLE_PROPERTY
, i
, cols
, MONO_PROPERTY_SIZE
);
2084 properties
[i
- first
].parent
= class;
2085 properties
[i
- first
].attrs
= cols
[MONO_PROPERTY_FLAGS
];
2086 properties
[i
- first
].name
= mono_metadata_string_heap (class->image
, cols
[MONO_PROPERTY_NAME
]);
2088 startm
= mono_metadata_methods_from_property (class->image
, i
, &endm
);
2089 for (j
= startm
; j
< endm
; ++j
) {
2092 mono_metadata_decode_row (msemt
, j
, cols
, MONO_METHOD_SEMA_SIZE
);
2094 if (class->image
->uncompressed_metadata
)
2095 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2096 method
= mono_get_method (class->image
, MONO_TOKEN_METHOD_DEF
| cols
[MONO_METHOD_SEMA_METHOD
], class);
2098 method
= class->methods
[cols
[MONO_METHOD_SEMA_METHOD
] - 1 - class->method
.first
];
2100 switch (cols
[MONO_METHOD_SEMA_SEMANTICS
]) {
2101 case METHOD_SEMANTIC_SETTER
:
2102 properties
[i
- first
].set
= method
;
2104 case METHOD_SEMANTIC_GETTER
:
2105 properties
[i
- first
].get
= method
;
2113 /*Flush any pending writes as we do double checked locking on class->properties */
2114 mono_memory_barrier ();
2116 /* Leave this assignment as the last op in the function */
2117 class->ext
->properties
= properties
;
2119 mono_loader_unlock ();
2123 inflate_method_listz (MonoMethod
**methods
, MonoClass
*class, MonoGenericContext
*context
)
2125 MonoMethod
**om
, **retval
;
2128 for (om
= methods
, count
= 0; *om
; ++om
, ++count
)
2131 retval
= g_new0 (MonoMethod
*, count
+ 1);
2133 for (om
= methods
, count
= 0; *om
; ++om
, ++count
)
2134 retval
[count
] = mono_class_inflate_generic_method_full (*om
, class, context
);
2139 /*This method can fail the class.*/
2141 mono_class_setup_events (MonoClass
*class)
2144 guint startm
, endm
, i
, j
;
2145 guint32 cols
[MONO_EVENT_SIZE
];
2146 MonoTableInfo
*msemt
= &class->image
->tables
[MONO_TABLE_METHODSEMANTICS
];
2150 if (class->ext
&& class->ext
->events
)
2153 mono_loader_lock ();
2155 if (class->ext
&& class->ext
->events
) {
2156 mono_loader_unlock ();
2160 mono_class_alloc_ext (class);
2162 if (class->generic_class
) {
2163 MonoClass
*gklass
= class->generic_class
->container_class
;
2164 MonoGenericContext
*context
;
2166 mono_class_setup_events (gklass
);
2167 if (gklass
->exception_type
) {
2168 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup ("Generic type definition failed to load"));
2169 mono_loader_unlock ();
2173 class->ext
->event
= gklass
->ext
->event
;
2174 class->ext
->events
= g_new0 (MonoEvent
, class->ext
->event
.count
);
2176 if (class->ext
->event
.count
)
2177 context
= mono_class_get_context (class);
2179 for (i
= 0; i
< class->ext
->event
.count
; i
++) {
2180 MonoEvent
*event
= &class->ext
->events
[i
];
2181 MonoEvent
*gevent
= &gklass
->ext
->events
[i
];
2183 event
->parent
= class;
2184 event
->name
= gevent
->name
;
2185 event
->add
= gevent
->add
? mono_class_inflate_generic_method_full (gevent
->add
, class, context
) : NULL
;
2186 event
->remove
= gevent
->remove
? mono_class_inflate_generic_method_full (gevent
->remove
, class, context
) : NULL
;
2187 event
->raise
= gevent
->raise
? mono_class_inflate_generic_method_full (gevent
->raise
, class, context
) : NULL
;
2188 #ifndef MONO_SMALL_CONFIG
2189 event
->other
= gevent
->other
? inflate_method_listz (gevent
->other
, class, context
) : NULL
;
2191 event
->attrs
= gevent
->attrs
;
2194 mono_loader_unlock ();
2198 first
= mono_metadata_events_from_typedef (class->image
, mono_metadata_token_index (class->type_token
) - 1, &last
);
2199 count
= last
- first
;
2202 mono_class_setup_methods (class);
2203 if (class->exception_type
) {
2204 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup ("Generic type definition failed to load"));
2205 mono_loader_unlock ();
2209 class->ext
->event
.first
= first
;
2210 class->ext
->event
.count
= count
;
2211 events
= mono_image_alloc0 (class->image
, sizeof (MonoEvent
) * class->ext
->event
.count
);
2212 for (i
= first
; i
< last
; ++i
) {
2213 MonoEvent
*event
= &events
[i
- first
];
2215 mono_metadata_decode_table_row (class->image
, MONO_TABLE_EVENT
, i
, cols
, MONO_EVENT_SIZE
);
2216 event
->parent
= class;
2217 event
->attrs
= cols
[MONO_EVENT_FLAGS
];
2218 event
->name
= mono_metadata_string_heap (class->image
, cols
[MONO_EVENT_NAME
]);
2220 startm
= mono_metadata_methods_from_event (class->image
, i
, &endm
);
2221 for (j
= startm
; j
< endm
; ++j
) {
2224 mono_metadata_decode_row (msemt
, j
, cols
, MONO_METHOD_SEMA_SIZE
);
2226 if (class->image
->uncompressed_metadata
)
2227 /* It seems like the MONO_METHOD_SEMA_METHOD column needs no remapping */
2228 method
= mono_get_method (class->image
, MONO_TOKEN_METHOD_DEF
| cols
[MONO_METHOD_SEMA_METHOD
], class);
2230 method
= class->methods
[cols
[MONO_METHOD_SEMA_METHOD
] - 1 - class->method
.first
];
2232 switch (cols
[MONO_METHOD_SEMA_SEMANTICS
]) {
2233 case METHOD_SEMANTIC_ADD_ON
:
2234 event
->add
= method
;
2236 case METHOD_SEMANTIC_REMOVE_ON
:
2237 event
->remove
= method
;
2239 case METHOD_SEMANTIC_FIRE
:
2240 event
->raise
= method
;
2242 case METHOD_SEMANTIC_OTHER
: {
2243 #ifndef MONO_SMALL_CONFIG
2246 if (event
->other
== NULL
) {
2247 event
->other
= g_new0 (MonoMethod
*, 2);
2249 while (event
->other
[n
])
2251 event
->other
= g_realloc (event
->other
, (n
+ 2) * sizeof (MonoMethod
*));
2253 event
->other
[n
] = method
;
2254 /* NULL terminated */
2255 event
->other
[n
+ 1] = NULL
;
2264 /*Flush any pending writes as we do double checked locking on class->properties */
2265 mono_memory_barrier ();
2267 /* Leave this assignment as the last op in the function */
2268 class->ext
->events
= events
;
2270 mono_loader_unlock ();
2274 * Global pool of interface IDs, represented as a bitset.
2275 * LOCKING: this is supposed to be accessed with the loader lock held.
2277 static MonoBitSet
*global_interface_bitset
= NULL
;
2280 * mono_unload_interface_ids:
2281 * @bitset: bit set of interface IDs
2283 * When an image is unloaded, the interface IDs associated with
2284 * the image are put back in the global pool of IDs so the numbers
2288 mono_unload_interface_ids (MonoBitSet
*bitset
)
2290 mono_loader_lock ();
2291 mono_bitset_sub (global_interface_bitset
, bitset
);
2292 mono_loader_unlock ();
2296 * mono_get_unique_iid:
2299 * Assign a unique integer ID to the interface represented by @class.
2300 * The ID will positive and as small as possible.
2301 * LOCKING: this is supposed to be called with the loader lock held.
2302 * Returns: the new ID.
2305 mono_get_unique_iid (MonoClass
*class)
2309 g_assert (MONO_CLASS_IS_INTERFACE (class));
2311 if (!global_interface_bitset
) {
2312 global_interface_bitset
= mono_bitset_new (128, 0);
2315 iid
= mono_bitset_find_first_unset (global_interface_bitset
, -1);
2317 int old_size
= mono_bitset_size (global_interface_bitset
);
2318 MonoBitSet
*new_set
= mono_bitset_clone (global_interface_bitset
, old_size
* 2);
2319 mono_bitset_free (global_interface_bitset
);
2320 global_interface_bitset
= new_set
;
2323 mono_bitset_set (global_interface_bitset
, iid
);
2324 /* set the bit also in the per-image set */
2325 if (class->image
->interface_bitset
) {
2326 if (iid
>= mono_bitset_size (class->image
->interface_bitset
)) {
2327 MonoBitSet
*new_set
= mono_bitset_clone (class->image
->interface_bitset
, iid
+ 1);
2328 mono_bitset_free (class->image
->interface_bitset
);
2329 class->image
->interface_bitset
= new_set
;
2332 class->image
->interface_bitset
= mono_bitset_new (iid
+ 1, 0);
2334 mono_bitset_set (class->image
->interface_bitset
, iid
);
2336 #ifndef MONO_SMALL_CONFIG
2337 if (mono_print_vtable
) {
2339 char *type_name
= mono_type_full_name (&class->byval_arg
);
2340 if (class->generic_class
&& !class->generic_class
->context
.class_inst
->is_open
) {
2341 generic_id
= class->generic_class
->context
.class_inst
->id
;
2342 g_assert (generic_id
!= 0);
2346 printf ("Interface: assigned id %d to %s|%s|%d\n", iid
, class->image
->name
, type_name
, generic_id
);
2351 g_assert (iid
<= 65535);
2356 collect_implemented_interfaces_aux (MonoClass
*klass
, GPtrArray
**res
, MonoError
*error
)
2361 mono_class_setup_interfaces (klass
, error
);
2362 if (!mono_error_ok (error
))
2365 for (i
= 0; i
< klass
->interface_count
; i
++) {
2366 ic
= klass
->interfaces
[i
];
2369 *res
= g_ptr_array_new ();
2370 g_ptr_array_add (*res
, ic
);
2371 mono_class_init (ic
);
2373 collect_implemented_interfaces_aux (ic
, res
, error
);
2374 if (!mono_error_ok (error
))
2380 mono_class_get_implemented_interfaces (MonoClass
*klass
, MonoError
*error
)
2382 GPtrArray
*res
= NULL
;
2384 collect_implemented_interfaces_aux (klass
, &res
, error
);
2385 if (!mono_error_ok (error
)) {
2387 g_ptr_array_free (res
, TRUE
);
2394 compare_interface_ids (const void *p_key
, const void *p_element
) {
2395 const MonoClass
*key
= p_key
;
2396 const MonoClass
*element
= *(MonoClass
**) p_element
;
2398 return (key
->interface_id
- element
->interface_id
);
2401 /*FIXME verify all callers if they should switch to mono_class_interface_offset_with_variance*/
2403 mono_class_interface_offset (MonoClass
*klass
, MonoClass
*itf
) {
2404 MonoClass
**result
= bsearch (
2406 klass
->interfaces_packed
,
2407 klass
->interface_offsets_count
,
2408 sizeof (MonoClass
*),
2409 compare_interface_ids
);
2411 return klass
->interface_offsets_packed
[result
- (klass
->interfaces_packed
)];
2418 * mono_class_interface_offset_with_variance:
2420 * Return the interface offset of @itf in @klass. Sets @non_exact_match to TRUE if the match required variance check
2421 * If @itf is an interface with generic variant arguments, try to find the compatible one.
2423 * Note that this function is responsible for resolving ambiguities. Right now we use whatever ordering interfaces_packed gives us.
2425 * FIXME figure out MS disambiguation rules and fix this function.
2428 mono_class_interface_offset_with_variance (MonoClass
*klass
, MonoClass
*itf
, gboolean
*non_exact_match
) {
2429 int i
= mono_class_interface_offset (klass
, itf
);
2430 *non_exact_match
= FALSE
;
2434 if (!mono_class_has_variant_generic_params (itf
))
2437 for (i
= 0; i
< klass
->interface_offsets_count
; i
++) {
2438 if (mono_class_is_variant_compatible (itf
, klass
->interfaces_packed
[i
])) {
2439 *non_exact_match
= TRUE
;
2440 return klass
->interface_offsets_packed
[i
];
2448 print_implemented_interfaces (MonoClass
*klass
) {
2451 GPtrArray
*ifaces
= NULL
;
2453 int ancestor_level
= 0;
2455 name
= mono_type_get_full_name (klass
);
2456 printf ("Packed interface table for class %s has size %d\n", name
, klass
->interface_offsets_count
);
2459 for (i
= 0; i
< klass
->interface_offsets_count
; i
++)
2460 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i
,
2461 klass
->interfaces_packed
[i
]->interface_id
,
2462 klass
->interface_offsets_packed
[i
],
2463 klass
->interfaces_packed
[i
]->method
.count
,
2464 klass
->interfaces_packed
[i
]->name_space
,
2465 klass
->interfaces_packed
[i
]->name
);
2466 printf ("Interface flags: ");
2467 for (i
= 0; i
<= klass
->max_interface_id
; i
++)
2468 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass
, i
))
2469 printf ("(%d,T)", i
);
2471 printf ("(%d,F)", i
);
2473 printf ("Dump interface flags:");
2474 #ifdef COMPRESSED_INTERFACE_BITMAP
2476 const uint8_t* p
= klass
->interface_bitmap
;
2477 i
= klass
->max_interface_id
;
2479 printf (" %d x 00 %02X", p
[0], p
[1]);
2485 for (i
= 0; i
< ((((klass
->max_interface_id
+ 1) >> 3)) + (((klass
->max_interface_id
+ 1) & 7)? 1 :0)); i
++)
2486 printf (" %02X", klass
->interface_bitmap
[i
]);
2489 while (klass
!= NULL
) {
2490 printf ("[LEVEL %d] Implemented interfaces by class %s:\n", ancestor_level
, klass
->name
);
2491 ifaces
= mono_class_get_implemented_interfaces (klass
, &error
);
2492 if (!mono_error_ok (&error
)) {
2493 printf (" Type failed due to %s\n", mono_error_get_message (&error
));
2494 mono_error_cleanup (&error
);
2495 } else if (ifaces
) {
2496 for (i
= 0; i
< ifaces
->len
; i
++) {
2497 MonoClass
*ic
= g_ptr_array_index (ifaces
, i
);
2498 printf (" [UIID %d] interface %s\n", ic
->interface_id
, ic
->name
);
2499 printf (" [%03d][UUID %03d][SLOT %03d][SIZE %03d] interface %s.%s\n", i
,
2501 mono_class_interface_offset (klass
, ic
),
2506 g_ptr_array_free (ifaces
, TRUE
);
2509 klass
= klass
->parent
;
2514 inflate_class_one_arg (MonoClass
*gtype
, MonoClass
*arg0
)
2517 args
[0] = &arg0
->byval_arg
;
2519 return mono_class_bind_generic_parameters (gtype
, 1, args
, FALSE
);
2523 array_class_get_if_rank (MonoClass
*class, guint rank
)
2525 return rank
? mono_array_class_get (class, rank
) : class;
2529 fill_valuetype_array_derived_types (MonoClass
**valuetype_types
, MonoClass
*eclass
, int rank
)
2531 valuetype_types
[0] = eclass
;
2532 if (eclass
== mono_defaults
.int16_class
)
2533 valuetype_types
[1] = mono_defaults
.uint16_class
;
2534 else if (eclass
== mono_defaults
.uint16_class
)
2535 valuetype_types
[1] = mono_defaults
.int16_class
;
2536 else if (eclass
== mono_defaults
.int32_class
)
2537 valuetype_types
[1] = mono_defaults
.uint32_class
;
2538 else if (eclass
== mono_defaults
.uint32_class
)
2539 valuetype_types
[1] = mono_defaults
.int32_class
;
2540 else if (eclass
== mono_defaults
.int64_class
)
2541 valuetype_types
[1] = mono_defaults
.uint64_class
;
2542 else if (eclass
== mono_defaults
.uint64_class
)
2543 valuetype_types
[1] = mono_defaults
.int64_class
;
2544 else if (eclass
== mono_defaults
.byte_class
)
2545 valuetype_types
[1] = mono_defaults
.sbyte_class
;
2546 else if (eclass
== mono_defaults
.sbyte_class
)
2547 valuetype_types
[1] = mono_defaults
.byte_class
;
2548 else if (eclass
->enumtype
&& mono_class_enum_basetype (eclass
))
2549 valuetype_types
[1] = mono_class_from_mono_type (mono_class_enum_basetype (eclass
));
2552 /* this won't be needed once bug #325495 is completely fixed
2553 * though we'll need something similar to know which interfaces to allow
2554 * in arrays when they'll be lazyly created
2556 * FIXME: System.Array/InternalEnumerator don't need all this interface fabrication machinery.
2557 * MS returns diferrent types based on which instance is called. For example:
2558 * object obj = new byte[10][];
2559 * Type a = ((IEnumerable<byte[]>)obj).GetEnumerator ().GetType ();
2560 * Type b = ((IEnumerable<IList<byte>>)obj).GetEnumerator ().GetType ();
2563 * Fixing this should kill quite some code, save some bits and improve compatibility.
2566 get_implicit_generic_array_interfaces (MonoClass
*class, int *num
, int *is_enumerator
)
2568 MonoClass
*eclass
= class->element_class
;
2569 static MonoClass
* generic_icollection_class
= NULL
;
2570 static MonoClass
* generic_ienumerable_class
= NULL
;
2571 static MonoClass
* generic_ienumerator_class
= NULL
;
2572 MonoClass
*valuetype_types
[2] = { NULL
, NULL
};
2573 MonoClass
**interfaces
= NULL
;
2574 int i
, interface_count
, real_count
, original_rank
;
2576 gboolean internal_enumerator
;
2577 gboolean eclass_is_valuetype
;
2579 if (!mono_defaults
.generic_ilist_class
) {
2583 internal_enumerator
= FALSE
;
2584 eclass_is_valuetype
= FALSE
;
2585 original_rank
= eclass
->rank
;
2586 if (class->byval_arg
.type
!= MONO_TYPE_SZARRAY
) {
2587 if (class->generic_class
&& class->nested_in
== mono_defaults
.array_class
&& strcmp (class->name
, "InternalEnumerator`1") == 0) {
2589 * For a Enumerator<T[]> we need to get the list of interfaces for T.
2591 eclass
= mono_class_from_mono_type (class->generic_class
->context
.class_inst
->type_argv
[0]);
2592 original_rank
= eclass
->rank
;
2593 eclass
= eclass
->element_class
;
2594 internal_enumerator
= TRUE
;
2595 *is_enumerator
= TRUE
;
2603 * with this non-lazy impl we can't implement all the interfaces so we do just the minimal stuff
2604 * for deep levels of arrays of arrays (string[][] has all the interfaces, string[][][] doesn't)
2606 all_interfaces
= eclass
->rank
&& eclass
->element_class
->rank
? FALSE
: TRUE
;
2608 if (!generic_icollection_class
) {
2609 generic_icollection_class
= mono_class_from_name (mono_defaults
.corlib
,
2610 "System.Collections.Generic", "ICollection`1");
2611 generic_ienumerable_class
= mono_class_from_name (mono_defaults
.corlib
,
2612 "System.Collections.Generic", "IEnumerable`1");
2613 generic_ienumerator_class
= mono_class_from_name (mono_defaults
.corlib
,
2614 "System.Collections.Generic", "IEnumerator`1");
2617 mono_class_init (eclass
);
2620 * Arrays in 2.0 need to implement a number of generic interfaces
2621 * (IList`1, ICollection`1, IEnumerable`1 for a number of types depending
2622 * on the element class). We collect the types needed to build the
2623 * instantiations in interfaces at intervals of 3, because 3 are
2624 * the generic interfaces needed to implement.
2626 if (eclass
->valuetype
) {
2627 fill_valuetype_array_derived_types (valuetype_types
, eclass
, original_rank
);
2629 /* IList, ICollection, IEnumerable */
2630 real_count
= interface_count
= valuetype_types
[1] ? 6 : 3;
2631 if (internal_enumerator
) {
2633 if (valuetype_types
[1])
2637 interfaces
= g_malloc0 (sizeof (MonoClass
*) * real_count
);
2638 interfaces
[0] = valuetype_types
[0];
2639 if (valuetype_types
[1])
2640 interfaces
[3] = valuetype_types
[1];
2642 eclass_is_valuetype
= TRUE
;
2645 int idepth
= eclass
->idepth
;
2646 if (!internal_enumerator
)
2649 // FIXME: This doesn't seem to work/required for generic params
2650 if (!(eclass
->this_arg
.type
== MONO_TYPE_VAR
|| eclass
->this_arg
.type
== MONO_TYPE_MVAR
|| (eclass
->image
->dynamic
&& !eclass
->wastypebuilder
)))
2651 mono_class_setup_interface_offsets (eclass
);
2653 interface_count
= all_interfaces
? eclass
->interface_offsets_count
: eclass
->interface_count
;
2654 /* we add object for interfaces and the supertypes for the other
2655 * types. The last of the supertypes is the element class itself which we
2656 * already created the explicit interfaces for (so we include it for IEnumerator
2657 * and exclude it for arrays).
2659 if (MONO_CLASS_IS_INTERFACE (eclass
))
2662 interface_count
+= idepth
;
2663 if (eclass
->rank
&& eclass
->element_class
->valuetype
) {
2664 fill_valuetype_array_derived_types (valuetype_types
, eclass
->element_class
, original_rank
);
2665 if (valuetype_types
[1])
2668 /* IList, ICollection, IEnumerable */
2669 interface_count
*= 3;
2670 real_count
= interface_count
;
2671 if (internal_enumerator
) {
2672 real_count
+= (MONO_CLASS_IS_INTERFACE (eclass
) ? 1 : idepth
) + eclass
->interface_offsets_count
;
2673 if (valuetype_types
[1])
2676 interfaces
= g_malloc0 (sizeof (MonoClass
*) * real_count
);
2677 if (MONO_CLASS_IS_INTERFACE (eclass
)) {
2678 interfaces
[0] = mono_defaults
.object_class
;
2682 for (i
= 0; i
< idepth
; i
++) {
2683 mono_class_init (eclass
->supertypes
[i
]);
2684 interfaces
[j
] = eclass
->supertypes
[i
];
2688 if (all_interfaces
) {
2689 for (i
= 0; i
< eclass
->interface_offsets_count
; i
++) {
2690 interfaces
[j
] = eclass
->interfaces_packed
[i
];
2694 for (i
= 0; i
< eclass
->interface_count
; i
++) {
2695 interfaces
[j
] = eclass
->interfaces
[i
];
2699 if (valuetype_types
[1]) {
2700 interfaces
[j
] = array_class_get_if_rank (valuetype_types
[1], original_rank
);
2705 /* instantiate the generic interfaces */
2706 for (i
= 0; i
< interface_count
; i
+= 3) {
2707 MonoClass
*iface
= interfaces
[i
];
2709 interfaces
[i
+ 0] = inflate_class_one_arg (mono_defaults
.generic_ilist_class
, iface
);
2710 interfaces
[i
+ 1] = inflate_class_one_arg (generic_icollection_class
, iface
);
2711 interfaces
[i
+ 2] = inflate_class_one_arg (generic_ienumerable_class
, iface
);
2713 if (internal_enumerator
) {
2715 /* instantiate IEnumerator<iface> */
2716 for (i
= 0; i
< interface_count
; i
++) {
2717 interfaces
[i
] = inflate_class_one_arg (generic_ienumerator_class
, interfaces
[i
]);
2719 j
= interface_count
;
2720 if (!eclass_is_valuetype
) {
2721 if (MONO_CLASS_IS_INTERFACE (eclass
)) {
2722 interfaces
[j
] = inflate_class_one_arg (generic_ienumerator_class
, mono_defaults
.object_class
);
2725 for (i
= 0; i
< eclass
->idepth
; i
++) {
2726 interfaces
[j
] = inflate_class_one_arg (generic_ienumerator_class
, eclass
->supertypes
[i
]);
2730 for (i
= 0; i
< eclass
->interface_offsets_count
; i
++) {
2731 interfaces
[j
] = inflate_class_one_arg (generic_ienumerator_class
, eclass
->interfaces_packed
[i
]);
2735 interfaces
[j
++] = inflate_class_one_arg (generic_ienumerator_class
, array_class_get_if_rank (valuetype_types
[0], original_rank
));
2737 if (valuetype_types
[1])
2738 interfaces
[j
] = inflate_class_one_arg (generic_ienumerator_class
, array_class_get_if_rank (valuetype_types
[1], original_rank
));
2742 char *type_name
= mono_type_get_name_full (&class->byval_arg
, 0);
2743 for (i
= 0; i
< real_count
; ++i
) {
2744 char *name
= mono_type_get_name_full (&interfaces
[i
]->byval_arg
, 0);
2745 g_print ("%s implements %s\n", type_name
, name
);
2756 find_array_interface (MonoClass
*klass
, const char *name
)
2759 for (i
= 0; i
< klass
->interface_count
; ++i
) {
2760 if (strcmp (klass
->interfaces
[i
]->name
, name
) == 0)
2767 * Return the number of virtual methods.
2768 * Even for interfaces we can't simply return the number of methods as all CLR types are allowed to have static methods.
2769 * Return -1 on failure.
2770 * FIXME It would be nice if this information could be cached somewhere.
2773 count_virtual_methods (MonoClass
*class)
2777 class = mono_class_get_generic_type_definition (class); /*We can find this information by looking at the GTD*/
2779 if (class->methods
|| !MONO_CLASS_HAS_STATIC_METADATA (class)) {
2780 mono_class_setup_methods (class);
2781 if (class->exception_type
)
2784 for (i
= 0; i
< class->method
.count
; ++i
) {
2785 flags
= class->methods
[i
]->flags
;
2786 if (flags
& METHOD_ATTRIBUTE_VIRTUAL
)
2790 for (i
= 0; i
< class->method
.count
; ++i
) {
2791 flags
= mono_metadata_decode_table_row_col (class->image
, MONO_TABLE_METHOD
, class->method
.first
+ i
, MONO_METHOD_FLAGS
);
2793 if (flags
& METHOD_ATTRIBUTE_VIRTUAL
)
2801 find_interface (int num_ifaces
, MonoClass
**interfaces_full
, MonoClass
*ic
)
2809 m
= (l
+ num_ifaces
) / 2;
2810 if (interfaces_full
[m
] == ic
)
2812 if (l
== num_ifaces
)
2814 if (!interfaces_full
[m
] || interfaces_full
[m
]->interface_id
> ic
->interface_id
) {
2823 find_interface_offset (int num_ifaces
, MonoClass
**interfaces_full
, int *interface_offsets_full
, MonoClass
*ic
)
2825 int i
= find_interface (num_ifaces
, interfaces_full
, ic
);
2827 return interface_offsets_full
[i
];
2832 set_interface_and_offset (int num_ifaces
, MonoClass
**interfaces_full
, int *interface_offsets_full
, MonoClass
*ic
, int offset
, mono_bool force_set
)
2834 int i
= find_interface (num_ifaces
, interfaces_full
, ic
);
2838 interface_offsets_full
[i
] = offset
;
2841 for (i
= 0; i
< num_ifaces
; ++i
) {
2842 if (interfaces_full
[i
]) {
2844 if (interfaces_full
[i
]->interface_id
< ic
->interface_id
)
2847 while (end
< num_ifaces
&& interfaces_full
[end
]) end
++;
2848 memmove (interfaces_full
+ i
+ 1, interfaces_full
+ i
, sizeof (MonoClass
*) * (end
- i
));
2849 memmove (interface_offsets_full
+ i
+ 1, interface_offsets_full
+ i
, sizeof (int) * (end
- i
));
2851 interfaces_full
[i
] = ic
;
2852 interface_offsets_full
[i
] = offset
;
2858 #ifdef COMPRESSED_INTERFACE_BITMAP
2861 * Compressed interface bitmap design.
2863 * Interface bitmaps take a large amount of memory, because their size is
2864 * linear with the maximum interface id assigned in the process (each interface
2865 * is assigned a unique id as it is loaded). The number of interface classes
2866 * is high because of the many implicit interfaces implemented by arrays (we'll
2867 * need to lazy-load them in the future).
2868 * Most classes implement a very small number of interfaces, so the bitmap is
2869 * sparse. This bitmap needs to be checked by interface casts, so access to the
2870 * needed bit must be fast and doable with few jit instructions.
2872 * The current compression format is as follows:
2873 * *) it is a sequence of one or more two-byte elements
2874 * *) the first byte in the element is the count of empty bitmap bytes
2875 * at the current bitmap position
2876 * *) the second byte in the element is an actual bitmap byte at the current
2879 * As an example, the following compressed bitmap bytes:
2880 * 0x07 0x01 0x00 0x7
2881 * correspond to the following bitmap:
2882 * 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x01 0x07
2884 * Each two-byte element can represent up to 2048 bitmap bits, but as few as a single
2885 * bitmap byte for non-sparse sequences. In practice the interface bitmaps created
2886 * during a gmcs bootstrap are reduced to less tha 5% of the original size.
2890 * mono_compress_bitmap:
2891 * @dest: destination buffer
2892 * @bitmap: bitmap buffer
2893 * @size: size of @bitmap in bytes
2895 * This is a mono internal function.
2896 * The @bitmap data is compressed into a format that is small but
2897 * still searchable in few instructions by the JIT and runtime.
2898 * The compressed data is stored in the buffer pointed to by the
2899 * @dest array. Passing a #NULL value for @dest allows to just compute
2900 * the size of the buffer.
2901 * This compression algorithm assumes the bits set in the bitmap are
2902 * few and far between, like in interface bitmaps.
2903 * Returns: the size of the compressed bitmap in bytes.
2906 mono_compress_bitmap (uint8_t *dest
, const uint8_t *bitmap
, int size
)
2910 const uint8_t *end
= bitmap
+ size
;
2911 while (bitmap
< end
) {
2912 if (*bitmap
|| numz
== 255) {
2936 * mono_class_interface_match:
2937 * @bitmap: a compressed bitmap buffer
2938 * @id: the index to check in the bitmap
2940 * This is a mono internal function.
2941 * Checks if a bit is set in a compressed interface bitmap. @id must
2942 * be already checked for being smaller than the maximum id encoded in the
2945 * Returns: a non-zero value if bit @id is set in the bitmap @bitmap,
2949 mono_class_interface_match (const uint8_t *bitmap
, int id
)
2952 id
-= bitmap
[0] * 8;
2956 return bitmap
[1] & (1 << id
);
2965 * LOCKING: this is supposed to be called with the loader lock held.
2966 * Return -1 on failure and set exception_type
2969 setup_interface_offsets (MonoClass
*class, int cur_slot
)
2973 int i
, j
, max_iid
, num_ifaces
;
2974 MonoClass
**interfaces_full
= NULL
;
2975 int *interface_offsets_full
= NULL
;
2977 GPtrArray
**ifaces_array
= NULL
;
2978 int interface_offsets_count
;
2979 MonoClass
**array_interfaces
= NULL
;
2980 int num_array_interfaces
;
2981 int is_enumerator
= FALSE
;
2983 mono_class_setup_supertypes (class);
2985 * get the implicit generic interfaces for either the arrays or for System.Array/InternalEnumerator<T>
2986 * implicit interfaces have the property that they are assigned the same slot in the
2987 * vtables for compatible interfaces
2989 array_interfaces
= get_implicit_generic_array_interfaces (class, &num_array_interfaces
, &is_enumerator
);
2991 /* compute maximum number of slots and maximum interface id */
2993 num_ifaces
= num_array_interfaces
; /* this can include duplicated ones */
2994 ifaces_array
= g_new0 (GPtrArray
*, class->idepth
);
2995 for (j
= 0; j
< class->idepth
; j
++) {
2996 k
= class->supertypes
[j
];
2997 num_ifaces
+= k
->interface_count
;
2998 for (i
= 0; i
< k
->interface_count
; i
++) {
2999 ic
= k
->interfaces
[i
];
3002 mono_class_init (ic
);
3004 if (max_iid
< ic
->interface_id
)
3005 max_iid
= ic
->interface_id
;
3007 ifaces
= mono_class_get_implemented_interfaces (k
, &error
);
3008 if (!mono_error_ok (&error
)) {
3009 char *name
= mono_type_get_full_name (k
);
3010 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup_printf ("Error getting the interfaces of %s due to %s", name
, mono_error_get_message (&error
)));
3012 mono_error_cleanup (&error
);
3017 num_ifaces
+= ifaces
->len
;
3018 for (i
= 0; i
< ifaces
->len
; ++i
) {
3019 ic
= g_ptr_array_index (ifaces
, i
);
3020 if (max_iid
< ic
->interface_id
)
3021 max_iid
= ic
->interface_id
;
3023 ifaces_array
[j
] = ifaces
;
3027 for (i
= 0; i
< num_array_interfaces
; ++i
) {
3028 ic
= array_interfaces
[i
];
3029 mono_class_init (ic
);
3030 if (max_iid
< ic
->interface_id
)
3031 max_iid
= ic
->interface_id
;
3034 if (MONO_CLASS_IS_INTERFACE (class)) {
3036 if (max_iid
< class->interface_id
)
3037 max_iid
= class->interface_id
;
3039 class->max_interface_id
= max_iid
;
3040 /* compute vtable offset for interfaces */
3041 interfaces_full
= g_malloc0 (sizeof (MonoClass
*) * num_ifaces
);
3042 interface_offsets_full
= g_malloc (sizeof (int) * num_ifaces
);
3044 for (i
= 0; i
< num_ifaces
; i
++) {
3045 interface_offsets_full
[i
] = -1;
3048 /* skip the current class */
3049 for (j
= 0; j
< class->idepth
- 1; j
++) {
3050 k
= class->supertypes
[j
];
3051 ifaces
= ifaces_array
[j
];
3054 for (i
= 0; i
< ifaces
->len
; ++i
) {
3056 ic
= g_ptr_array_index (ifaces
, i
);
3058 /*Force the sharing of interface offsets between parent and subtypes.*/
3059 io
= mono_class_interface_offset (k
, ic
);
3061 set_interface_and_offset (num_ifaces
, interfaces_full
, interface_offsets_full
, ic
, io
, TRUE
);
3066 g_assert (class == class->supertypes
[class->idepth
- 1]);
3067 ifaces
= ifaces_array
[class->idepth
- 1];
3069 for (i
= 0; i
< ifaces
->len
; ++i
) {
3071 ic
= g_ptr_array_index (ifaces
, i
);
3072 if (set_interface_and_offset (num_ifaces
, interfaces_full
, interface_offsets_full
, ic
, cur_slot
, FALSE
))
3074 count
= count_virtual_methods (ic
);
3076 char *name
= mono_type_get_full_name (ic
);
3077 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup_printf ("Error calculating interface offset of %s", name
));
3086 if (MONO_CLASS_IS_INTERFACE (class))
3087 set_interface_and_offset (num_ifaces
, interfaces_full
, interface_offsets_full
, class, cur_slot
, TRUE
);
3089 if (num_array_interfaces
) {
3090 if (is_enumerator
) {
3091 int ienumerator_idx
= find_array_interface (class, "IEnumerator`1");
3092 int ienumerator_offset
= find_interface_offset (num_ifaces
, interfaces_full
, interface_offsets_full
, class->interfaces
[ienumerator_idx
]);
3093 g_assert (ienumerator_offset
>= 0);
3094 for (i
= 0; i
< num_array_interfaces
; ++i
) {
3095 ic
= array_interfaces
[i
];
3096 if (strcmp (ic
->name
, "IEnumerator`1") == 0)
3097 set_interface_and_offset (num_ifaces
, interfaces_full
, interface_offsets_full
, ic
, ienumerator_offset
, TRUE
);
3099 g_assert_not_reached ();
3100 /*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);*/
3103 int ilist_offset
, icollection_offset
, ienumerable_offset
;
3104 int ilist_iface_idx
= find_array_interface (class, "IList`1");
3105 MonoClass
* ilist_class
= class->interfaces
[ilist_iface_idx
];
3106 int icollection_iface_idx
= find_array_interface (ilist_class
, "ICollection`1");
3107 int ienumerable_iface_idx
= find_array_interface (ilist_class
, "IEnumerable`1");
3108 ilist_offset
= find_interface_offset (num_ifaces
, interfaces_full
, interface_offsets_full
, class->interfaces
[ilist_iface_idx
]);
3109 icollection_offset
= find_interface_offset (num_ifaces
, interfaces_full
, interface_offsets_full
, ilist_class
->interfaces
[icollection_iface_idx
]);
3110 ienumerable_offset
= find_interface_offset (num_ifaces
, interfaces_full
, interface_offsets_full
, ilist_class
->interfaces
[ienumerable_iface_idx
]);
3111 g_assert (ilist_offset
>= 0 && icollection_offset
>= 0 && ienumerable_offset
>= 0);
3112 for (i
= 0; i
< num_array_interfaces
; ++i
) {
3114 ic
= array_interfaces
[i
];
3115 if (ic
->generic_class
->container_class
== mono_defaults
.generic_ilist_class
)
3116 offset
= ilist_offset
;
3117 else if (strcmp (ic
->name
, "ICollection`1") == 0)
3118 offset
= icollection_offset
;
3119 else if (strcmp (ic
->name
, "IEnumerable`1") == 0)
3120 offset
= ienumerable_offset
;
3122 g_assert_not_reached ();
3123 set_interface_and_offset (num_ifaces
, interfaces_full
, interface_offsets_full
, ic
, offset
, TRUE
);
3124 /*g_print ("type %s has %s offset at %d (%s)\n", class->name, ic->name, offset, class->interfaces [0]->name);*/
3129 for (interface_offsets_count
= 0, i
= 0; i
< num_ifaces
; i
++) {
3130 if (interface_offsets_full
[i
] != -1) {
3131 interface_offsets_count
++;
3136 * We might get called twice: once from mono_class_init () then once from
3137 * mono_class_setup_vtable ().
3139 if (class->interfaces_packed
) {
3140 g_assert (class->interface_offsets_count
== interface_offsets_count
);
3144 class->interface_offsets_count
= interface_offsets_count
;
3145 class->interfaces_packed
= mono_image_alloc (class->image
, sizeof (MonoClass
*) * interface_offsets_count
);
3146 class->interface_offsets_packed
= mono_image_alloc (class->image
, sizeof (guint16
) * interface_offsets_count
);
3147 bsize
= (sizeof (guint8
) * ((max_iid
+ 1) >> 3)) + (((max_iid
+ 1) & 7)? 1 :0);
3148 #ifdef COMPRESSED_INTERFACE_BITMAP
3149 bitmap
= g_malloc0 (bsize
);
3151 bitmap
= mono_image_alloc0 (class->image
, bsize
);
3153 for (i
= 0; i
< interface_offsets_count
; i
++) {
3154 int id
= interfaces_full
[i
]->interface_id
;
3155 bitmap
[id
>> 3] |= (1 << (id
& 7));
3156 class->interfaces_packed
[i
] = interfaces_full
[i
];
3157 class->interface_offsets_packed
[i
] = interface_offsets_full
[i
];
3158 /*if (num_array_interfaces)
3159 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]);*/
3161 #ifdef COMPRESSED_INTERFACE_BITMAP
3162 i
= mono_compress_bitmap (NULL
, bitmap
, bsize
);
3163 class->interface_bitmap
= mono_image_alloc0 (class->image
, i
);
3164 mono_compress_bitmap (class->interface_bitmap
, bitmap
, bsize
);
3167 class->interface_bitmap
= bitmap
;
3172 g_free (interfaces_full
);
3173 g_free (interface_offsets_full
);
3174 g_free (array_interfaces
);
3175 for (i
= 0; i
< class->idepth
; i
++) {
3176 ifaces
= ifaces_array
[i
];
3178 g_ptr_array_free (ifaces
, TRUE
);
3180 g_free (ifaces_array
);
3182 //printf ("JUST DONE: ");
3183 //print_implemented_interfaces (class);
3189 * Setup interface offsets for interfaces.
3191 * - class->max_interface_id
3192 * - class->interface_offsets_count
3193 * - class->interfaces_packed
3194 * - class->interface_offsets_packed
3195 * - class->interface_bitmap
3197 * This function can fail @class.
3200 mono_class_setup_interface_offsets (MonoClass
*class)
3202 mono_loader_lock ();
3204 setup_interface_offsets (class, 0);
3206 mono_loader_unlock ();
3210 * mono_class_setup_vtable:
3212 * Creates the generic vtable of CLASS.
3213 * Initializes the following fields in MonoClass:
3216 * Plus all the fields initialized by setup_interface_offsets ().
3217 * If there is an error during vtable construction, class->exception_type is set.
3219 * LOCKING: Acquires the loader lock.
3222 mono_class_setup_vtable (MonoClass
*class)
3224 MonoMethod
**overrides
;
3225 MonoGenericContext
*context
;
3233 if (mono_debug_using_mono_debugger ())
3234 /* The debugger currently depends on this */
3235 mono_class_setup_methods (class);
3237 if (MONO_CLASS_IS_INTERFACE (class)) {
3238 /* This sets method->slot for all methods if this is an interface */
3239 mono_class_setup_methods (class);
3243 if (class->exception_type
)
3246 mono_loader_lock ();
3248 if (class->vtable
) {
3249 mono_loader_unlock ();
3253 mono_stats
.generic_vtable_count
++;
3255 if (class->generic_class
) {
3256 context
= mono_class_get_context (class);
3257 type_token
= class->generic_class
->container_class
->type_token
;
3259 context
= (MonoGenericContext
*) class->generic_container
;
3260 type_token
= class->type_token
;
3263 if (class->image
->dynamic
) {
3264 /* Generic instances can have zero method overrides without causing any harm.
3265 * This is true since we don't do layout all over again for them, we simply inflate
3266 * the layout of the parent.
3268 mono_reflection_get_dynamic_overrides (class, &overrides
, &onum
);
3270 /* The following call fails if there are missing methods in the type */
3271 /* FIXME it's probably a good idea to avoid this for generic instances. */
3272 ok
= mono_class_get_overrides_full (class->image
, type_token
, &overrides
, &onum
, context
);
3276 mono_class_setup_vtable_general (class, overrides
, onum
);
3280 mono_loader_unlock ();
3285 #define DEBUG_INTERFACE_VTABLE_CODE 0
3286 #define TRACE_INTERFACE_VTABLE_CODE 0
3287 #define VERIFY_INTERFACE_VTABLE_CODE 0
3288 #define VTABLE_SELECTOR (1)
3290 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3291 #define DEBUG_INTERFACE_VTABLE(stmt) do {\
3292 if (!(VTABLE_SELECTOR)) break; \
3296 #define DEBUG_INTERFACE_VTABLE(stmt)
3299 #if TRACE_INTERFACE_VTABLE_CODE
3300 #define TRACE_INTERFACE_VTABLE(stmt) do {\
3301 if (!(VTABLE_SELECTOR)) break; \
3305 #define TRACE_INTERFACE_VTABLE(stmt)
3308 #if VERIFY_INTERFACE_VTABLE_CODE
3309 #define VERIFY_INTERFACE_VTABLE(stmt) do {\
3310 if (!(VTABLE_SELECTOR)) break; \
3314 #define VERIFY_INTERFACE_VTABLE(stmt)
3318 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3320 mono_signature_get_full_desc (MonoMethodSignature
*sig
, gboolean include_namespace
)
3324 GString
*res
= g_string_new ("");
3326 g_string_append_c (res
, '(');
3327 for (i
= 0; i
< sig
->param_count
; ++i
) {
3329 g_string_append_c (res
, ',');
3330 mono_type_get_desc (res
, sig
->params
[i
], include_namespace
);
3332 g_string_append (res
, ")=>");
3333 if (sig
->ret
!= NULL
) {
3334 mono_type_get_desc (res
, sig
->ret
, include_namespace
);
3336 g_string_append (res
, "NULL");
3339 g_string_free (res
, FALSE
);
3343 print_method_signatures (MonoMethod
*im
, MonoMethod
*cm
) {
3344 char *im_sig
= mono_signature_get_full_desc (mono_method_signature (im
), TRUE
);
3345 char *cm_sig
= mono_signature_get_full_desc (mono_method_signature (cm
), TRUE
);
3346 printf ("(IM \"%s\", CM \"%s\")", im_sig
, cm_sig
);
3354 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
) {
3355 MonoMethodSignature
*cmsig
, *imsig
;
3356 if (strcmp (im
->name
, cm
->name
) == 0) {
3357 if (! (cm
->flags
& METHOD_ATTRIBUTE_PUBLIC
)) {
3358 TRACE_INTERFACE_VTABLE (printf ("[PUBLIC CHECK FAILED]"));
3361 if (! slot_is_empty
) {
3362 if (require_newslot
) {
3363 if (! interface_is_explicitly_implemented_by_class
) {
3364 TRACE_INTERFACE_VTABLE (printf ("[NOT EXPLICIT IMPLEMENTATION IN FULL SLOT REFUSED]"));
3367 if (! (cm
->flags
& METHOD_ATTRIBUTE_NEW_SLOT
)) {
3368 TRACE_INTERFACE_VTABLE (printf ("[NEWSLOT CHECK FAILED]"));
3372 TRACE_INTERFACE_VTABLE (printf ("[FULL SLOT REFUSED]"));
3375 cmsig
= mono_method_signature (cm
);
3376 imsig
= mono_method_signature (im
);
3377 if (!cmsig
|| !imsig
) {
3378 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup ("Could not resolve the signature of a virtual method"));
3382 if (! mono_metadata_signature_equal (cmsig
, imsig
)) {
3383 TRACE_INTERFACE_VTABLE (printf ("[SIGNATURE CHECK FAILED "));
3384 TRACE_INTERFACE_VTABLE (print_method_signatures (im
, cm
));
3385 TRACE_INTERFACE_VTABLE (printf ("]"));
3388 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS]"));
3389 /* CAS - SecurityAction.InheritanceDemand on interface */
3390 if (security_enabled
&& (im
->flags
& METHOD_ATTRIBUTE_HAS_SECURITY
)) {
3391 mono_secman_inheritancedemand_method (cm
, im
);
3394 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR
)
3395 mono_security_core_clr_check_override (class, cm
, im
);
3396 TRACE_INTERFACE_VTABLE (printf ("[NAME CHECK OK]"));
3399 MonoClass
*ic
= im
->klass
;
3400 const char *ic_name_space
= ic
->name_space
;
3401 const char *ic_name
= ic
->name
;
3404 if (! require_newslot
) {
3405 TRACE_INTERFACE_VTABLE (printf ("[INJECTED METHOD REFUSED]"));
3408 if (cm
->klass
->rank
== 0) {
3409 TRACE_INTERFACE_VTABLE (printf ("[RANK CHECK FAILED]"));
3412 if (! mono_metadata_signature_equal (mono_method_signature (cm
), mono_method_signature (im
))) {
3413 TRACE_INTERFACE_VTABLE (printf ("[(INJECTED) SIGNATURE CHECK FAILED "));
3414 TRACE_INTERFACE_VTABLE (print_method_signatures (im
, cm
));
3415 TRACE_INTERFACE_VTABLE (printf ("]"));
3418 if (mono_class_get_image (ic
) != mono_defaults
.corlib
) {
3419 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE CORLIB CHECK FAILED]"));
3422 if ((ic_name_space
== NULL
) || (strcmp (ic_name_space
, "System.Collections.Generic") != 0)) {
3423 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAMESPACE CHECK FAILED]"));
3426 if ((ic_name
== NULL
) || ((strcmp (ic_name
, "IEnumerable`1") != 0) && (strcmp (ic_name
, "ICollection`1") != 0) && (strcmp (ic_name
, "IList`1") != 0))) {
3427 TRACE_INTERFACE_VTABLE (printf ("[INTERFACE NAME CHECK FAILED]"));
3431 subname
= strstr (cm
->name
, ic_name_space
);
3432 if (subname
!= cm
->name
) {
3433 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL NAMESPACE CHECK FAILED]"));
3436 subname
+= strlen (ic_name_space
);
3437 if (subname
[0] != '.') {
3438 TRACE_INTERFACE_VTABLE (printf ("[FIRST DOT CHECK FAILED]"));
3442 if (strstr (subname
, ic_name
) != subname
) {
3443 TRACE_INTERFACE_VTABLE (printf ("[ACTUAL CLASS NAME CHECK FAILED]"));
3446 subname
+= strlen (ic_name
);
3447 if (subname
[0] != '.') {
3448 TRACE_INTERFACE_VTABLE (printf ("[SECOND DOT CHECK FAILED]"));
3452 if (strcmp (subname
, im
->name
) != 0) {
3453 TRACE_INTERFACE_VTABLE (printf ("[METHOD NAME CHECK FAILED]"));
3457 TRACE_INTERFACE_VTABLE (printf ("[SECURITY CHECKS (INJECTED CASE)]"));
3458 /* CAS - SecurityAction.InheritanceDemand on interface */
3459 if (security_enabled
&& (im
->flags
& METHOD_ATTRIBUTE_HAS_SECURITY
)) {
3460 mono_secman_inheritancedemand_method (cm
, im
);
3463 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR
)
3464 mono_security_core_clr_check_override (class, cm
, im
);
3466 TRACE_INTERFACE_VTABLE (printf ("[INJECTED INTERFACE CHECK OK]"));
3471 #if (TRACE_INTERFACE_VTABLE_CODE|DEBUG_INTERFACE_VTABLE_CODE)
3473 foreach_override (gpointer key
, gpointer value
, gpointer user_data
) {
3474 MonoMethod
*method
= key
;
3475 MonoMethod
*override
= value
;
3476 MonoClass
*method_class
= mono_method_get_class (method
);
3477 MonoClass
*override_class
= mono_method_get_class (override
);
3479 printf (" Method '%s.%s:%s' has override '%s.%s:%s'\n",
3480 mono_class_get_namespace (method_class
), mono_class_get_name (method_class
), mono_method_get_name (method
),
3481 mono_class_get_namespace (override_class
), mono_class_get_name (override_class
), mono_method_get_name (override
));
3484 print_overrides (GHashTable
*override_map
, const char *message
) {
3486 printf ("Override map \"%s\" START:\n", message
);
3487 g_hash_table_foreach (override_map
, foreach_override
, NULL
);
3488 printf ("Override map \"%s\" END.\n", message
);
3490 printf ("Override map \"%s\" EMPTY.\n", message
);
3494 print_vtable_full (MonoClass
*class, MonoMethod
** vtable
, int size
, int first_non_interface_slot
, const char *message
, gboolean print_interfaces
) {
3495 char *full_name
= mono_type_full_name (&class->byval_arg
);
3499 printf ("*** Vtable for class '%s' at \"%s\" (size %d)\n", full_name
, message
, size
);
3501 if (print_interfaces
) {
3502 print_implemented_interfaces (class);
3503 printf ("* Interfaces for class '%s' done.\nStarting vtable (size %d):\n", full_name
, size
);
3506 if (class->parent
) {
3507 parent_size
= class->parent
->vtable_size
;
3511 for (i
= 0; i
< size
; ++i
) {
3512 MonoMethod
*cm
= vtable
[i
];
3514 char *cm_name
= mono_method_full_name (cm
, TRUE
);
3515 char newness
= (i
< parent_size
) ? 'O' : ((i
< first_non_interface_slot
) ? 'I' : 'N');
3516 printf (" [%c][%03d][INDEX %03d] %s\n", newness
, i
, cm
->slot
, cm_name
);
3525 #if VERIFY_INTERFACE_VTABLE_CODE
3527 mono_method_try_get_vtable_index (MonoMethod
*method
)
3529 if (method
->is_inflated
&& (method
->flags
& METHOD_ATTRIBUTE_VIRTUAL
)) {
3530 MonoMethodInflated
*imethod
= (MonoMethodInflated
*)method
;
3531 if (imethod
->declaring
->is_generic
)
3532 return imethod
->declaring
->slot
;
3534 return method
->slot
;
3538 mono_class_verify_vtable (MonoClass
*class)
3541 char *full_name
= mono_type_full_name (&class->byval_arg
);
3543 printf ("*** Verifying VTable of class '%s' \n", full_name
);
3547 if (!class->methods
)
3550 for (i
= 0; i
< class->method
.count
; ++i
) {
3551 MonoMethod
*cm
= class->methods
[i
];
3554 if (!(cm
->flags
& METHOD_ATTRIBUTE_VIRTUAL
))
3558 full_name
= mono_method_full_name (cm
, TRUE
);
3560 slot
= mono_method_try_get_vtable_index (cm
);
3562 if (slot
>= class->vtable_size
) {
3563 printf ("\tInvalid method %s at index %d with vtable of length %d\n", full_name
, slot
, class->vtable_size
);
3567 if (slot
>= 0 && class->vtable
[slot
] != cm
&& (class->vtable
[slot
])) {
3568 char *other_name
= class->vtable
[slot
] ? mono_method_full_name (class->vtable
[slot
], TRUE
) : g_strdup ("[null value]");
3569 printf ("\tMethod %s has slot %d but vtable has %s on it\n", full_name
, slot
, other_name
);
3570 g_free (other_name
);
3573 printf ("\tVirtual method %s does n't have an assigned slot\n", full_name
);
3580 print_unimplemented_interface_method_info (MonoClass
*class, MonoClass
*ic
, MonoMethod
*im
, int im_slot
, MonoMethod
**overrides
, int onum
) {
3582 char *method_signature
;
3585 for (index
= 0; index
< onum
; ++index
) {
3586 g_print (" at slot %d: %s (%d) overrides %s (%d)\n", im_slot
, overrides
[index
*2+1]->name
,
3587 overrides
[index
*2+1]->slot
, overrides
[index
*2]->name
, overrides
[index
*2]->slot
);
3589 method_signature
= mono_signature_get_desc (mono_method_signature (im
), FALSE
);
3590 type_name
= mono_type_full_name (&class->byval_arg
);
3591 printf ("no implementation for interface method %s::%s(%s) in class %s\n",
3592 mono_type_get_name (&ic
->byval_arg
), im
->name
, method_signature
, type_name
);
3593 g_free (method_signature
);
3595 mono_class_setup_methods (class);
3596 if (class->exception_type
) {
3597 char *name
= mono_type_get_full_name (class);
3598 printf ("CLASS %s failed to resolve methods\n", name
);
3602 for (index
= 0; index
< class->method
.count
; ++index
) {
3603 MonoMethod
*cm
= class->methods
[index
];
3604 method_signature
= mono_signature_get_desc (mono_method_signature (cm
), TRUE
);
3606 printf ("METHOD %s(%s)\n", cm
->name
, method_signature
);
3607 g_free (method_signature
);
3612 verify_class_overrides (MonoClass
*class, MonoMethod
**overrides
, int onum
)
3616 for (i
= 0; i
< onum
; ++i
) {
3617 MonoMethod
*decl
= overrides
[i
* 2];
3618 MonoMethod
*body
= overrides
[i
* 2 + 1];
3620 if (mono_class_get_generic_type_definition (body
->klass
) != mono_class_get_generic_type_definition (class)) {
3621 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup ("Method belongs to a different class than the declared one"));
3625 if (!(body
->flags
& METHOD_ATTRIBUTE_VIRTUAL
) || (body
->flags
& METHOD_ATTRIBUTE_STATIC
)) {
3626 if (body
->flags
& METHOD_ATTRIBUTE_STATIC
)
3627 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup ("Method must not be static to override a base type"));
3629 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup ("Method must be virtual to override a base type"));
3633 if (!(decl
->flags
& METHOD_ATTRIBUTE_VIRTUAL
) || (decl
->flags
& METHOD_ATTRIBUTE_STATIC
)) {
3634 if (body
->flags
& METHOD_ATTRIBUTE_STATIC
)
3635 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup ("Cannot override a static method in a base type"));
3637 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup ("Cannot override a non virtual method in a base type"));
3641 if (!mono_class_is_assignable_from_slow (decl
->klass
, class)) {
3642 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup ("Method overrides a class or interface that extended or implemented by this type"));
3649 * LOCKING: this is supposed to be called with the loader lock held.
3652 mono_class_setup_vtable_general (MonoClass
*class, MonoMethod
**overrides
, int onum
)
3656 MonoMethod
**vtable
;
3657 int i
, max_vtsize
= 0, max_iid
, cur_slot
= 0;
3658 GPtrArray
*ifaces
= NULL
;
3659 GHashTable
*override_map
= NULL
;
3660 gboolean security_enabled
= mono_is_security_manager_active ();
3662 gpointer class_iter
;
3663 #if (DEBUG_INTERFACE_VTABLE_CODE|TRACE_INTERFACE_VTABLE_CODE)
3664 int first_non_interface_slot
;
3666 GSList
*virt_methods
= NULL
, *l
;
3671 if (overrides
&& !verify_class_overrides (class, overrides
, onum
))
3674 ifaces
= mono_class_get_implemented_interfaces (class, &error
);
3675 if (!mono_error_ok (&error
)) {
3676 char *name
= mono_type_get_full_name (class);
3677 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup_printf ("Could not resolve %s interfaces due to %s", name
, mono_error_get_message (&error
)));
3679 mono_error_cleanup (&error
);
3681 } else if (ifaces
) {
3682 for (i
= 0; i
< ifaces
->len
; i
++) {
3683 MonoClass
*ic
= g_ptr_array_index (ifaces
, i
);
3684 max_vtsize
+= ic
->method
.count
;
3686 g_ptr_array_free (ifaces
, TRUE
);
3690 if (class->parent
) {
3691 mono_class_init (class->parent
);
3692 mono_class_setup_vtable (class->parent
);
3694 if (class->parent
->exception_type
) {
3695 char *name
= mono_type_get_full_name (class->parent
);
3696 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup_printf ("Parent %s failed to load", name
));
3701 max_vtsize
+= class->parent
->vtable_size
;
3702 cur_slot
= class->parent
->vtable_size
;
3705 max_vtsize
+= class->method
.count
;
3707 vtable
= alloca (sizeof (gpointer
) * max_vtsize
);
3708 memset (vtable
, 0, sizeof (gpointer
) * max_vtsize
);
3710 /* printf ("METAINIT %s.%s\n", class->name_space, class->name); */
3712 cur_slot
= setup_interface_offsets (class, cur_slot
);
3713 if (cur_slot
== -1) /*setup_interface_offsets fails the type.*/
3716 max_iid
= class->max_interface_id
;
3717 DEBUG_INTERFACE_VTABLE (first_non_interface_slot
= cur_slot
);
3719 /* Optimized version for generic instances */
3720 if (class->generic_class
) {
3721 MonoClass
*gklass
= class->generic_class
->container_class
;
3724 mono_class_setup_vtable (gklass
);
3725 if (gklass
->exception_type
!= MONO_EXCEPTION_NONE
) {
3726 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
3730 tmp
= mono_image_alloc0 (class->image
, sizeof (gpointer
) * gklass
->vtable_size
);
3731 class->vtable_size
= gklass
->vtable_size
;
3732 for (i
= 0; i
< gklass
->vtable_size
; ++i
)
3733 if (gklass
->vtable
[i
]) {
3734 tmp
[i
] = mono_class_inflate_generic_method_full (gklass
->vtable
[i
], class, mono_class_get_context (class));
3735 tmp
[i
]->slot
= gklass
->vtable
[i
]->slot
;
3737 mono_memory_barrier ();
3738 class->vtable
= tmp
;
3740 /* Have to set method->slot for abstract virtual methods */
3741 if (class->methods
&& gklass
->methods
) {
3742 for (i
= 0; i
< class->method
.count
; ++i
)
3743 if (class->methods
[i
]->slot
== -1)
3744 class->methods
[i
]->slot
= gklass
->methods
[i
]->slot
;
3750 if (class->parent
&& class->parent
->vtable_size
) {
3751 MonoClass
*parent
= class->parent
;
3754 memcpy (vtable
, parent
->vtable
, sizeof (gpointer
) * parent
->vtable_size
);
3756 // Also inherit parent interface vtables, just as a starting point.
3757 // This is needed otherwise bug-77127.exe fails when the property methods
3758 // have different names in the iterface and the class, because for child
3759 // classes the ".override" information is not used anymore.
3760 for (i
= 0; i
< parent
->interface_offsets_count
; i
++) {
3761 MonoClass
*parent_interface
= parent
->interfaces_packed
[i
];
3762 int interface_offset
= mono_class_interface_offset (class, parent_interface
);
3763 /*FIXME this is now dead code as this condition will never hold true.
3764 Since interface offsets are inherited then the offset of an interface implemented
3765 by a parent will never be the out of it's vtable boundary.
3767 if (interface_offset
>= parent
->vtable_size
) {
3768 int parent_interface_offset
= mono_class_interface_offset (parent
, parent_interface
);
3771 mono_class_setup_methods (parent_interface
); /*FIXME Just kill this whole chunk of dead code*/
3772 TRACE_INTERFACE_VTABLE (printf (" +++ Inheriting interface %s.%s\n", parent_interface
->name_space
, parent_interface
->name
));
3773 for (j
= 0; j
< parent_interface
->method
.count
&& !class->exception_type
; j
++) {
3774 vtable
[interface_offset
+ j
] = parent
->vtable
[parent_interface_offset
+ j
];
3775 TRACE_INTERFACE_VTABLE (printf (" --- Inheriting: [%03d][(%03d)+(%03d)] => [%03d][(%03d)+(%03d)]\n",
3776 parent_interface_offset
+ j
, parent_interface_offset
, j
,
3777 interface_offset
+ j
, interface_offset
, j
));
3784 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable
, cur_slot
, first_non_interface_slot
, "AFTER INHERITING PARENT VTABLE", TRUE
));
3785 /* override interface methods */
3786 for (i
= 0; i
< onum
; i
++) {
3787 MonoMethod
*decl
= overrides
[i
*2];
3788 if (MONO_CLASS_IS_INTERFACE (decl
->klass
)) {
3790 dslot
= mono_method_get_vtable_slot (decl
);
3792 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
3796 dslot
+= mono_class_interface_offset (class, decl
->klass
);
3797 vtable
[dslot
] = overrides
[i
*2 + 1];
3798 vtable
[dslot
]->slot
= dslot
;
3800 override_map
= g_hash_table_new (mono_aligned_addr_hash
, NULL
);
3802 g_hash_table_insert (override_map
, overrides
[i
* 2], overrides
[i
* 2 + 1]);
3804 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR
)
3805 mono_security_core_clr_check_override (class, vtable
[dslot
], decl
);
3808 TRACE_INTERFACE_VTABLE (print_overrides (override_map
, "AFTER OVERRIDING INTERFACE METHODS"));
3809 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable
, cur_slot
, first_non_interface_slot
, "AFTER OVERRIDING INTERFACE METHODS", FALSE
));
3812 * Create a list of virtual methods to avoid calling
3813 * mono_class_get_virtual_methods () which is slow because of the metadata
3817 gpointer iter
= NULL
;
3820 virt_methods
= NULL
;
3821 while ((cm
= mono_class_get_virtual_methods (class, &iter
))) {
3822 virt_methods
= g_slist_prepend (virt_methods
, cm
);
3824 if (class->exception_type
)
3828 // Loop on all implemented interfaces...
3829 for (i
= 0; i
< class->interface_offsets_count
; i
++) {
3830 MonoClass
*parent
= class->parent
;
3832 gboolean interface_is_explicitly_implemented_by_class
;
3835 ic
= class->interfaces_packed
[i
];
3836 ic_offset
= mono_class_interface_offset (class, ic
);
3838 mono_class_setup_methods (ic
);
3839 if (ic
->exception_type
)
3842 // Check if this interface is explicitly implemented (instead of just inherited)
3843 if (parent
!= NULL
) {
3844 int implemented_interfaces_index
;
3845 interface_is_explicitly_implemented_by_class
= FALSE
;
3846 for (implemented_interfaces_index
= 0; implemented_interfaces_index
< class->interface_count
; implemented_interfaces_index
++) {
3847 if (ic
== class->interfaces
[implemented_interfaces_index
]) {
3848 interface_is_explicitly_implemented_by_class
= TRUE
;
3853 interface_is_explicitly_implemented_by_class
= TRUE
;
3856 // Loop on all interface methods...
3857 for (im_index
= 0; im_index
< ic
->method
.count
; im_index
++) {
3858 MonoMethod
*im
= ic
->methods
[im_index
];
3859 int im_slot
= ic_offset
+ im
->slot
;
3860 MonoMethod
*override_im
= (override_map
!= NULL
) ? g_hash_table_lookup (override_map
, im
) : NULL
;
3862 if (im
->flags
& METHOD_ATTRIBUTE_STATIC
)
3865 // If there is an explicit implementation, just use it right away,
3866 // otherwise look for a matching method
3867 if (override_im
== NULL
) {
3872 // First look for a suitable method among the class methods
3874 for (l
= virt_methods
; l
; l
= l
->next
) {
3876 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
)));
3877 if (check_interface_method_override (class, im
, cm
, TRUE
, interface_is_explicitly_implemented_by_class
, (vtable
[im_slot
] == NULL
), security_enabled
)) {
3878 TRACE_INTERFACE_VTABLE (printf ("[check ok]: ASSIGNING"));
3879 vtable
[im_slot
] = cm
;
3880 /* Why do we need this? */
3885 TRACE_INTERFACE_VTABLE (printf ("\n"));
3886 if (class->exception_type
) /*Might be set by check_interface_method_override*/
3890 // If the slot is still empty, look in all the inherited virtual methods...
3891 if ((vtable
[im_slot
] == NULL
) && class->parent
!= NULL
) {
3892 MonoClass
*parent
= class->parent
;
3893 // Reverse order, so that last added methods are preferred
3894 for (cm_index
= parent
->vtable_size
- 1; cm_index
>= 0; cm_index
--) {
3895 MonoMethod
*cm
= parent
->vtable
[cm_index
];
3897 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
));
3898 if ((cm
!= NULL
) && check_interface_method_override (class, im
, cm
, FALSE
, FALSE
, TRUE
, security_enabled
)) {
3899 TRACE_INTERFACE_VTABLE (printf ("[everything ok]: ASSIGNING"));
3900 vtable
[im_slot
] = cm
;
3901 /* Why do we need this? */
3907 if (class->exception_type
) /*Might be set by check_interface_method_override*/
3909 TRACE_INTERFACE_VTABLE ((cm
!= NULL
) && printf ("\n"));
3913 g_assert (vtable
[im_slot
] == override_im
);
3918 // If the class is not abstract, check that all its interface slots are full.
3919 // The check is done here and not directly at the end of the loop above because
3920 // it can happen (for injected generic array interfaces) that the same slot is
3921 // processed multiple times (those interfaces have overlapping slots), and it
3922 // will not always be the first pass the one that fills the slot.
3923 if (! (class->flags
& TYPE_ATTRIBUTE_ABSTRACT
)) {
3924 for (i
= 0; i
< class->interface_offsets_count
; i
++) {
3928 ic
= class->interfaces_packed
[i
];
3929 ic_offset
= mono_class_interface_offset (class, ic
);
3931 for (im_index
= 0; im_index
< ic
->method
.count
; im_index
++) {
3932 MonoMethod
*im
= ic
->methods
[im_index
];
3933 int im_slot
= ic_offset
+ im
->slot
;
3935 if (im
->flags
& METHOD_ATTRIBUTE_STATIC
)
3938 TRACE_INTERFACE_VTABLE (printf (" [class is not abstract, checking slot %d for interface '%s'.'%s', method %s, slot check is %d]\n",
3939 im_slot
, ic
->name_space
, ic
->name
, im
->name
, (vtable
[im_slot
] == NULL
)));
3940 if (vtable
[im_slot
] == NULL
) {
3941 print_unimplemented_interface_method_info (class, ic
, im
, im_slot
, overrides
, onum
);
3948 TRACE_INTERFACE_VTABLE (print_vtable_full (class, vtable
, cur_slot
, first_non_interface_slot
, "AFTER SETTING UP INTERFACE METHODS", FALSE
));
3950 for (l
= virt_methods
; l
; l
= l
->next
) {
3953 * If the method is REUSE_SLOT, we must check in the
3954 * base class for a method to override.
3956 if (!(cm
->flags
& METHOD_ATTRIBUTE_NEW_SLOT
)) {
3958 for (k
= class->parent
; k
; k
= k
->parent
) {
3963 while ((m1
= mono_class_get_virtual_methods (k
, &k_iter
))) {
3964 MonoMethodSignature
*cmsig
, *m1sig
;
3966 cmsig
= mono_method_signature (cm
);
3967 m1sig
= mono_method_signature (m1
);
3969 if (!cmsig
|| !m1sig
) {
3970 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
3974 if (!strcmp(cm
->name
, m1
->name
) &&
3975 mono_metadata_signature_equal (cmsig
, m1sig
)) {
3977 /* CAS - SecurityAction.InheritanceDemand */
3978 if (security_enabled
&& (m1
->flags
& METHOD_ATTRIBUTE_HAS_SECURITY
)) {
3979 mono_secman_inheritancedemand_method (cm
, m1
);
3982 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR
)
3983 mono_security_core_clr_check_override (class, cm
, m1
);
3985 slot
= mono_method_get_vtable_slot (m1
);
3989 g_assert (cm
->slot
< max_vtsize
);
3991 override_map
= g_hash_table_new (mono_aligned_addr_hash
, NULL
);
3992 g_hash_table_insert (override_map
, m1
, cm
);
3996 if (k
->exception_type
)
4006 /*Non final newslot methods must be given a non-interface vtable slot*/
4007 if ((cm
->flags
& METHOD_ATTRIBUTE_NEW_SLOT
) && !(cm
->flags
& METHOD_ATTRIBUTE_FINAL
) && cm
->slot
>= 0)
4011 cm
->slot
= cur_slot
++;
4013 if (!(cm
->flags
& METHOD_ATTRIBUTE_ABSTRACT
))
4014 vtable
[cm
->slot
] = cm
;
4017 /* override non interface methods */
4018 for (i
= 0; i
< onum
; i
++) {
4019 MonoMethod
*decl
= overrides
[i
*2];
4020 if (!MONO_CLASS_IS_INTERFACE (decl
->klass
)) {
4021 g_assert (decl
->slot
!= -1);
4022 vtable
[decl
->slot
] = overrides
[i
*2 + 1];
4023 overrides
[i
* 2 + 1]->slot
= decl
->slot
;
4025 override_map
= g_hash_table_new (mono_aligned_addr_hash
, NULL
);
4026 g_hash_table_insert (override_map
, decl
, overrides
[i
* 2 + 1]);
4028 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR
)
4029 mono_security_core_clr_check_override (class, vtable
[decl
->slot
], decl
);
4034 * If a method occupies more than one place in the vtable, and it is
4035 * overriden, then change the other occurances too.
4038 for (i
= 0; i
< max_vtsize
; ++i
)
4040 MonoMethod
*cm
= g_hash_table_lookup (override_map
, vtable
[i
]);
4045 g_hash_table_destroy (override_map
);
4046 override_map
= NULL
;
4049 g_slist_free (virt_methods
);
4050 virt_methods
= NULL
;
4052 /* Ensure that all vtable slots are filled with concrete instance methods */
4053 if (!(class->flags
& TYPE_ATTRIBUTE_ABSTRACT
)) {
4054 for (i
= 0; i
< cur_slot
; ++i
) {
4055 if (vtable
[i
] == NULL
|| (vtable
[i
]->flags
& (METHOD_ATTRIBUTE_ABSTRACT
| METHOD_ATTRIBUTE_STATIC
))) {
4056 char *type_name
= mono_type_get_full_name (class);
4057 char *method_name
= vtable
[i
] ? mono_method_full_name (vtable
[i
], TRUE
) : g_strdup ("none");
4058 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup_printf ("Type %s has invalid vtable method slot %d with method %s", type_name
, i
, method_name
));
4060 g_free (method_name
);
4066 if (class->generic_class
) {
4067 MonoClass
*gklass
= class->generic_class
->container_class
;
4069 mono_class_init (gklass
);
4071 class->vtable_size
= MAX (gklass
->vtable_size
, cur_slot
);
4073 /* Check that the vtable_size value computed in mono_class_init () is correct */
4074 if (class->vtable_size
)
4075 g_assert (cur_slot
== class->vtable_size
);
4076 class->vtable_size
= cur_slot
;
4079 /* Try to share the vtable with our parent. */
4080 if (class->parent
&& (class->parent
->vtable_size
== class->vtable_size
) && (memcmp (class->parent
->vtable
, vtable
, sizeof (gpointer
) * class->vtable_size
) == 0)) {
4081 mono_memory_barrier ();
4082 class->vtable
= class->parent
->vtable
;
4084 MonoMethod
**tmp
= mono_image_alloc0 (class->image
, sizeof (gpointer
) * class->vtable_size
);
4085 memcpy (tmp
, vtable
, sizeof (gpointer
) * class->vtable_size
);
4086 mono_memory_barrier ();
4087 class->vtable
= tmp
;
4090 DEBUG_INTERFACE_VTABLE (print_vtable_full (class, class->vtable
, class->vtable_size
, first_non_interface_slot
, "FINALLY", FALSE
));
4091 if (mono_print_vtable
) {
4094 print_implemented_interfaces (class);
4096 for (i
= 0; i
<= max_iid
; i
++)
4097 if (MONO_CLASS_IMPLEMENTS_INTERFACE (class, i
))
4100 printf ("VTable %s (vtable entries = %d, interfaces = %d)\n", mono_type_full_name (&class->byval_arg
),
4101 class->vtable_size
, icount
);
4103 for (i
= 0; i
< cur_slot
; ++i
) {
4108 printf (" slot assigned: %03d, slot index: %03d %s\n", i
, cm
->slot
,
4109 mono_method_full_name (cm
, TRUE
));
4115 printf ("Interfaces %s.%s (max_iid = %d)\n", class->name_space
,
4116 class->name
, max_iid
);
4118 for (i
= 0; i
< class->interface_count
; i
++) {
4119 ic
= class->interfaces
[i
];
4120 printf (" slot offset: %03d, method count: %03d, iid: %03d %s\n",
4121 mono_class_interface_offset (class, ic
),
4122 count_virtual_methods (ic
), ic
->interface_id
, mono_type_full_name (&ic
->byval_arg
));
4125 for (k
= class->parent
; k
; k
= k
->parent
) {
4126 for (i
= 0; i
< k
->interface_count
; i
++) {
4127 ic
= k
->interfaces
[i
];
4128 printf (" parent slot offset: %03d, method count: %03d, iid: %03d %s\n",
4129 mono_class_interface_offset (class, ic
),
4130 count_virtual_methods (ic
), ic
->interface_id
, mono_type_full_name (&ic
->byval_arg
));
4136 VERIFY_INTERFACE_VTABLE (mono_class_verify_vtable (class));
4141 char *name
= mono_type_get_full_name (class);
4142 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup_printf ("VTable setup of type %s failed", name
));
4145 g_hash_table_destroy (override_map
);
4147 g_slist_free (virt_methods
);
4152 * mono_method_get_vtable_slot:
4154 * Returns method->slot, computing it if neccesary. Return -1 on failure.
4155 * LOCKING: Acquires the loader lock.
4157 * FIXME Use proper MonoError machinery here.
4160 mono_method_get_vtable_slot (MonoMethod
*method
)
4162 if (method
->slot
== -1) {
4163 mono_class_setup_vtable (method
->klass
);
4164 if (method
->klass
->exception_type
)
4166 g_assert (method
->slot
!= -1);
4168 return method
->slot
;
4172 * mono_method_get_vtable_index:
4175 * Returns the index into the runtime vtable to access the method or,
4176 * in the case of a virtual generic method, the virtual generic method
4177 * thunk. Returns -1 on failure.
4179 * FIXME Use proper MonoError machinery here.
4182 mono_method_get_vtable_index (MonoMethod
*method
)
4184 if (method
->is_inflated
&& (method
->flags
& METHOD_ATTRIBUTE_VIRTUAL
)) {
4185 MonoMethodInflated
*imethod
= (MonoMethodInflated
*)method
;
4186 if (imethod
->declaring
->is_generic
)
4187 return mono_method_get_vtable_slot (imethod
->declaring
);
4189 return mono_method_get_vtable_slot (method
);
4192 static MonoMethod
*default_ghc
= NULL
;
4193 static MonoMethod
*default_finalize
= NULL
;
4194 static int finalize_slot
= -1;
4195 static int ghc_slot
= -1;
4198 initialize_object_slots (MonoClass
*class)
4203 if (class == mono_defaults
.object_class
) {
4204 mono_class_setup_vtable (class);
4205 for (i
= 0; i
< class->vtable_size
; ++i
) {
4206 MonoMethod
*cm
= class->vtable
[i
];
4208 if (!strcmp (cm
->name
, "GetHashCode"))
4210 else if (!strcmp (cm
->name
, "Finalize"))
4214 g_assert (ghc_slot
> 0);
4215 default_ghc
= class->vtable
[ghc_slot
];
4217 g_assert (finalize_slot
> 0);
4218 default_finalize
= class->vtable
[finalize_slot
];
4223 MonoMethod
*array_method
;
4225 } GenericArrayMethodInfo
;
4227 static int generic_array_method_num
= 0;
4228 static GenericArrayMethodInfo
*generic_array_method_info
= NULL
;
4231 generic_array_methods (MonoClass
*class)
4233 int i
, count_generic
= 0;
4234 GList
*list
= NULL
, *tmp
;
4235 if (generic_array_method_num
)
4236 return generic_array_method_num
;
4237 mono_class_setup_methods (class->parent
); /*This is setting up System.Array*/
4238 g_assert (!class->parent
->exception_type
); /*So hitting this assert is a huge problem*/
4239 for (i
= 0; i
< class->parent
->method
.count
; i
++) {
4240 MonoMethod
*m
= class->parent
->methods
[i
];
4241 if (!strncmp (m
->name
, "InternalArray__", 15)) {
4243 list
= g_list_prepend (list
, m
);
4246 list
= g_list_reverse (list
);
4247 generic_array_method_info
= g_malloc (sizeof (GenericArrayMethodInfo
) * count_generic
);
4249 for (tmp
= list
; tmp
; tmp
= tmp
->next
) {
4250 const char *mname
, *iname
;
4252 MonoMethod
*m
= tmp
->data
;
4253 generic_array_method_info
[i
].array_method
= m
;
4254 if (!strncmp (m
->name
, "InternalArray__ICollection_", 27)) {
4255 iname
= "System.Collections.Generic.ICollection`1.";
4256 mname
= m
->name
+ 27;
4257 } else if (!strncmp (m
->name
, "InternalArray__IEnumerable_", 27)) {
4258 iname
= "System.Collections.Generic.IEnumerable`1.";
4259 mname
= m
->name
+ 27;
4260 } else if (!strncmp (m
->name
, "InternalArray__", 15)) {
4261 iname
= "System.Collections.Generic.IList`1.";
4262 mname
= m
->name
+ 15;
4264 g_assert_not_reached ();
4267 name
= mono_image_alloc (mono_defaults
.corlib
, strlen (iname
) + strlen (mname
) + 1);
4268 strcpy (name
, iname
);
4269 strcpy (name
+ strlen (iname
), mname
);
4270 generic_array_method_info
[i
].name
= name
;
4273 /*g_print ("array generic methods: %d\n", count_generic);*/
4275 generic_array_method_num
= count_generic
;
4277 return generic_array_method_num
;
4281 setup_generic_array_ifaces (MonoClass
*class, MonoClass
*iface
, MonoMethod
**methods
, int pos
)
4283 MonoGenericContext tmp_context
;
4286 tmp_context
.class_inst
= NULL
;
4287 tmp_context
.method_inst
= iface
->generic_class
->context
.class_inst
;
4288 //g_print ("setting up array interface: %s\n", mono_type_get_name_full (&iface->byval_arg, 0));
4290 for (i
= 0; i
< generic_array_method_num
; i
++) {
4291 MonoMethod
*m
= generic_array_method_info
[i
].array_method
;
4292 MonoMethod
*inflated
;
4294 inflated
= mono_class_inflate_generic_method (m
, &tmp_context
);
4295 methods
[pos
++] = mono_marshal_get_generic_array_helper (class, iface
, generic_array_method_info
[i
].name
, inflated
);
4300 concat_two_strings_with_zero (MonoImage
*image
, const char *s1
, const char *s2
)
4302 int len
= strlen (s1
) + strlen (s2
) + 2;
4303 char *s
= mono_image_alloc (image
, len
);
4306 result
= g_snprintf (s
, len
, "%s%c%s", s1
, '\0', s2
);
4307 g_assert (result
== len
- 1);
4313 set_failure_from_loader_error (MonoClass
*class, MonoLoaderError
*error
)
4315 gpointer exception_data
= NULL
;
4317 switch (error
->exception_type
) {
4318 case MONO_EXCEPTION_TYPE_LOAD
:
4319 exception_data
= concat_two_strings_with_zero (class->image
, error
->class_name
, error
->assembly_name
);
4322 case MONO_EXCEPTION_MISSING_METHOD
:
4323 exception_data
= concat_two_strings_with_zero (class->image
, error
->class_name
, error
->member_name
);
4326 case MONO_EXCEPTION_MISSING_FIELD
: {
4327 const char *name_space
= error
->klass
->name_space
? error
->klass
->name_space
: NULL
;
4328 const char *class_name
;
4331 class_name
= g_strdup_printf ("%s.%s", name_space
, error
->klass
->name
);
4333 class_name
= error
->klass
->name
;
4335 exception_data
= concat_two_strings_with_zero (class->image
, class_name
, error
->member_name
);
4338 g_free ((void*)class_name
);
4342 case MONO_EXCEPTION_FILE_NOT_FOUND
: {
4345 if (error
->ref_only
)
4346 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.";
4348 msg
= "Could not load file or assembly '%s' or one of its dependencies.";
4350 exception_data
= concat_two_strings_with_zero (class->image
, msg
, error
->assembly_name
);
4354 case MONO_EXCEPTION_BAD_IMAGE
:
4355 exception_data
= error
->msg
;
4359 g_assert_not_reached ();
4362 mono_class_set_failure (class, error
->exception_type
, exception_data
);
4367 * @class: the class to initialize
4369 * Compute the instance_size, class_size and other infos that cannot be
4370 * computed at mono_class_get() time. Also compute vtable_size if possible.
4371 * Returns TRUE on success or FALSE if there was a problem in loading
4372 * the type (incorrect assemblies, missing assemblies, methods, etc).
4374 * LOCKING: Acquires the loader lock.
4377 mono_class_init (MonoClass
*class)
4380 MonoCachedClassInfo cached_info
;
4381 gboolean has_cached_info
;
4385 /* Double-checking locking pattern */
4387 return class->exception_type
== MONO_EXCEPTION_NONE
;
4389 /*g_print ("Init class %s\n", class->name);*/
4391 /* We do everything inside the lock to prevent races */
4392 mono_loader_lock ();
4394 if (class->inited
) {
4395 mono_loader_unlock ();
4396 /* Somebody might have gotten in before us */
4397 return class->exception_type
== MONO_EXCEPTION_NONE
;
4400 if (class->init_pending
) {
4401 mono_loader_unlock ();
4402 /* this indicates a cyclic dependency */
4403 g_error ("pending init %s.%s\n", class->name_space
, class->name
);
4406 class->init_pending
= 1;
4408 if (mono_verifier_is_enabled_for_class (class) && !mono_verifier_verify_class (class)) {
4409 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, concat_two_strings_with_zero (class->image
, class->name
, class->image
->assembly_name
));
4414 if (class->byval_arg
.type
== MONO_TYPE_ARRAY
|| class->byval_arg
.type
== MONO_TYPE_SZARRAY
) {
4415 MonoClass
*element_class
= class->element_class
;
4416 if (!element_class
->inited
)
4417 mono_class_init (element_class
);
4418 if (element_class
->exception_type
!= MONO_EXCEPTION_NONE
) {
4419 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
4424 /* CAS - SecurityAction.InheritanceDemand */
4425 if (mono_is_security_manager_active () && class->parent
&& (class->parent
->flags
& TYPE_ATTRIBUTE_HAS_SECURITY
)) {
4426 mono_secman_inheritancedemand_class (class, class->parent
);
4429 mono_stats
.initialized_class_count
++;
4431 if (class->generic_class
&& !class->generic_class
->is_dynamic
) {
4432 MonoClass
*gklass
= class->generic_class
->container_class
;
4434 mono_stats
.generic_class_count
++;
4436 class->method
= gklass
->method
;
4437 class->field
= gklass
->field
;
4439 mono_class_init (gklass
);
4440 // FIXME: Why is this needed ?
4441 if (!gklass
->exception_type
)
4442 mono_class_setup_methods (gklass
);
4443 if (gklass
->exception_type
) {
4444 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, g_strdup_printf ("Generic Type Defintion failed to init"));
4448 if (MONO_CLASS_IS_INTERFACE (class))
4449 class->interface_id
= mono_get_unique_iid (class);
4452 if (class->parent
&& !class->parent
->inited
)
4453 mono_class_init (class->parent
);
4455 has_cached_info
= mono_class_get_cached_class_info (class, &cached_info
);
4457 if (class->generic_class
|| class->image
->dynamic
|| !class->type_token
|| (has_cached_info
&& !cached_info
.has_nested_classes
))
4458 class->nested_classes_inited
= TRUE
;
4461 * Computes the size used by the fields, and their locations
4463 if (has_cached_info
) {
4464 class->instance_size
= cached_info
.instance_size
;
4465 class->sizes
.class_size
= cached_info
.class_size
;
4466 class->packing_size
= cached_info
.packing_size
;
4467 class->min_align
= cached_info
.min_align
;
4468 class->blittable
= cached_info
.blittable
;
4469 class->has_references
= cached_info
.has_references
;
4470 class->has_static_refs
= cached_info
.has_static_refs
;
4471 class->no_special_static_fields
= cached_info
.no_special_static_fields
;
4474 if (!class->size_inited
){
4475 mono_class_setup_fields (class);
4476 if (class->exception_type
|| mono_loader_get_last_error ())
4480 /* Initialize arrays */
4482 class->method
.count
= 3 + (class->rank
> 1? 2: 1);
4484 if (class->interface_count
) {
4485 int count_generic
= generic_array_methods (class);
4486 class->method
.count
+= class->interface_count
* count_generic
;
4490 mono_class_setup_supertypes (class);
4493 initialize_object_slots (class);
4496 * Initialize the rest of the data without creating a generic vtable if possible.
4497 * If possible, also compute vtable_size, so mono_class_create_runtime_vtable () can
4498 * also avoid computing a generic vtable.
4500 if (has_cached_info
) {
4502 class->vtable_size
= cached_info
.vtable_size
;
4503 class->has_finalize
= cached_info
.has_finalize
;
4504 class->ghcimpl
= cached_info
.ghcimpl
;
4505 class->has_cctor
= cached_info
.has_cctor
;
4506 } else if (class->rank
== 1 && class->byval_arg
.type
== MONO_TYPE_SZARRAY
) {
4507 static int szarray_vtable_size
= 0;
4510 if (!szarray_vtable_size
) {
4511 mono_class_setup_vtable (class);
4512 szarray_vtable_size
= class->vtable_size
;
4514 class->vtable_size
= szarray_vtable_size
;
4516 } else if (class->generic_class
&& !MONO_CLASS_IS_INTERFACE (class)) {
4517 MonoClass
*gklass
= class->generic_class
->container_class
;
4519 /* Generic instance case */
4520 class->ghcimpl
= gklass
->ghcimpl
;
4521 class->has_finalize
= gklass
->has_finalize
;
4522 class->has_cctor
= gklass
->has_cctor
;
4524 mono_class_setup_vtable (gklass
);
4525 if (gklass
->exception_type
) {
4526 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
4530 class->vtable_size
= gklass
->vtable_size
;
4534 /* ghcimpl is not currently used
4536 if (class->parent) {
4537 MonoMethod *cmethod = class->vtable [ghc_slot];
4538 if (cmethod->is_inflated)
4539 cmethod = ((MonoMethodInflated*)cmethod)->declaring;
4540 if (cmethod == default_ghc) {
4546 /* Interfaces and valuetypes are not supposed to have finalizers */
4547 if (!(MONO_CLASS_IS_INTERFACE (class) || class->valuetype
)) {
4548 MonoMethod
*cmethod
= NULL
;
4550 if (class->parent
&& class->parent
->has_finalize
) {
4551 class->has_finalize
= 1;
4553 if (class->type_token
) {
4554 cmethod
= find_method_in_metadata (class, "Finalize", 0, METHOD_ATTRIBUTE_VIRTUAL
);
4555 } else if (class->parent
) {
4556 /* FIXME: Optimize this */
4557 mono_class_setup_vtable (class);
4558 if (class->exception_type
|| mono_loader_get_last_error ())
4560 cmethod
= class->vtable
[finalize_slot
];
4564 /* Check that this is really the finalizer method */
4565 mono_class_setup_vtable (class);
4566 if (class->exception_type
|| mono_loader_get_last_error ())
4569 g_assert (class->vtable_size
> finalize_slot
);
4571 class->has_finalize
= 0;
4572 if (class->parent
) {
4573 cmethod
= class->vtable
[finalize_slot
];
4575 if (cmethod
->is_inflated
)
4576 cmethod
= ((MonoMethodInflated
*)cmethod
)->declaring
;
4577 if (cmethod
!= default_finalize
) {
4578 class->has_finalize
= 1;
4585 /* C# doesn't allow interfaces to have cctors */
4586 if (!MONO_CLASS_IS_INTERFACE (class) || class->image
!= mono_defaults
.corlib
) {
4587 MonoMethod
*cmethod
= NULL
;
4589 if (class->type_token
) {
4590 cmethod
= find_method_in_metadata (class, ".cctor", 0, METHOD_ATTRIBUTE_SPECIAL_NAME
);
4591 /* The find_method function ignores the 'flags' argument */
4592 if (cmethod
&& (cmethod
->flags
& METHOD_ATTRIBUTE_SPECIAL_NAME
))
4593 class->has_cctor
= 1;
4595 mono_class_setup_methods (class);
4596 if (class->exception_type
)
4599 for (i
= 0; i
< class->method
.count
; ++i
) {
4600 MonoMethod
*method
= class->methods
[i
];
4601 if ((method
->flags
& METHOD_ATTRIBUTE_SPECIAL_NAME
) &&
4602 (strcmp (".cctor", method
->name
) == 0)) {
4603 class->has_cctor
= 1;
4611 if (class->parent
) {
4612 /* This will compute class->parent->vtable_size for some classes */
4613 mono_class_init (class->parent
);
4614 if (class->parent
->exception_type
) {
4615 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
4618 if (mono_loader_get_last_error ())
4620 if (!class->parent
->vtable_size
) {
4621 /* FIXME: Get rid of this somehow */
4622 mono_class_setup_vtable (class->parent
);
4623 if (class->parent
->exception_type
) {
4624 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
4627 if (mono_loader_get_last_error ())
4630 setup_interface_offsets (class, class->parent
->vtable_size
);
4632 setup_interface_offsets (class, 0);
4635 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR
)
4636 mono_security_core_clr_check_inheritance (class);
4638 if (mono_loader_get_last_error ()) {
4639 if (class->exception_type
== MONO_EXCEPTION_NONE
) {
4640 set_failure_from_loader_error (class, mono_loader_get_last_error ());
4642 mono_loader_clear_error ();
4648 /* Because of the double-checking locking pattern */
4649 mono_memory_barrier ();
4651 class->init_pending
= 0;
4653 mono_loader_unlock ();
4655 if (mono_debugger_class_init_func
)
4656 mono_debugger_class_init_func (class);
4658 return class->exception_type
== MONO_EXCEPTION_NONE
;
4662 is_corlib_image (MonoImage
*image
)
4664 /* FIXME: allow the dynamic case for our compilers and with full trust */
4666 return image
->assembly
&& !strcmp (image
->assembly
->aname
.name
, "mscorlib");
4668 return image
== mono_defaults
.corlib
;
4672 * LOCKING: this assumes the loader lock is held
4675 mono_class_setup_mono_type (MonoClass
*class)
4677 const char *name
= class->name
;
4678 const char *nspace
= class->name_space
;
4679 gboolean is_corlib
= is_corlib_image (class->image
);
4681 class->this_arg
.byref
= 1;
4682 class->this_arg
.data
.klass
= class;
4683 class->this_arg
.type
= MONO_TYPE_CLASS
;
4684 class->byval_arg
.data
.klass
= class;
4685 class->byval_arg
.type
= MONO_TYPE_CLASS
;
4687 if (is_corlib
&& !strcmp (nspace
, "System")) {
4688 if (!strcmp (name
, "ValueType")) {
4690 * do not set the valuetype bit for System.ValueType.
4691 * class->valuetype = 1;
4693 class->blittable
= TRUE
;
4694 } else if (!strcmp (name
, "Enum")) {
4696 * do not set the valuetype bit for System.Enum.
4697 * class->valuetype = 1;
4699 class->valuetype
= 0;
4700 class->enumtype
= 0;
4701 } else if (!strcmp (name
, "Object")) {
4702 class->this_arg
.type
= class->byval_arg
.type
= MONO_TYPE_OBJECT
;
4703 } else if (!strcmp (name
, "String")) {
4704 class->this_arg
.type
= class->byval_arg
.type
= MONO_TYPE_STRING
;
4705 } else if (!strcmp (name
, "TypedReference")) {
4706 class->this_arg
.type
= class->byval_arg
.type
= MONO_TYPE_TYPEDBYREF
;
4710 if (class->valuetype
) {
4711 int t
= MONO_TYPE_VALUETYPE
;
4713 if (is_corlib
&& !strcmp (nspace
, "System")) {
4716 if (!strcmp (name
, "Boolean")) {
4717 t
= MONO_TYPE_BOOLEAN
;
4718 } else if (!strcmp(name
, "Byte")) {
4720 class->blittable
= TRUE
;
4724 if (!strcmp (name
, "Char")) {
4729 if (!strcmp (name
, "Double")) {
4731 class->blittable
= TRUE
;
4735 if (!strcmp (name
, "Int32")) {
4737 class->blittable
= TRUE
;
4738 } else if (!strcmp(name
, "Int16")) {
4740 class->blittable
= TRUE
;
4741 } else if (!strcmp(name
, "Int64")) {
4743 class->blittable
= TRUE
;
4744 } else if (!strcmp(name
, "IntPtr")) {
4746 class->blittable
= TRUE
;
4750 if (!strcmp (name
, "Single")) {
4752 class->blittable
= TRUE
;
4753 } else if (!strcmp(name
, "SByte")) {
4755 class->blittable
= TRUE
;
4759 if (!strcmp (name
, "UInt32")) {
4761 class->blittable
= TRUE
;
4762 } else if (!strcmp(name
, "UInt16")) {
4764 class->blittable
= TRUE
;
4765 } else if (!strcmp(name
, "UInt64")) {
4767 class->blittable
= TRUE
;
4768 } else if (!strcmp(name
, "UIntPtr")) {
4770 class->blittable
= TRUE
;
4774 if (!strcmp (name
, "TypedReference")) {
4775 t
= MONO_TYPE_TYPEDBYREF
;
4776 class->blittable
= TRUE
;
4780 if (!strcmp (name
, "Void")) {
4788 class->this_arg
.type
= class->byval_arg
.type
= t
;
4791 if (MONO_CLASS_IS_INTERFACE (class))
4792 class->interface_id
= mono_get_unique_iid (class);
4797 * COM initialization (using mono_init_com_types) is delayed until needed.
4798 * However when a [ComImport] attribute is present on a type it will trigger
4799 * the initialization. This is not a problem unless the BCL being executed
4800 * lacks the types that COM depends on (e.g. Variant on Silverlight).
4803 init_com_from_comimport (MonoClass
*class)
4805 /* we don't always allow COM initialization under the CoreCLR (e.g. Moonlight does not require it) */
4806 if ((mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR
)) {
4807 /* but some other CoreCLR user could requires it for their platform (i.e. trusted) code */
4808 if (!mono_security_core_clr_determine_platform_image (class->image
)) {
4809 /* but it can not be made available for application (i.e. user code) since all COM calls
4810 * are considered native calls. In this case we fail with a TypeLoadException (just like
4811 * Silverlight 2 does */
4812 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
4816 /* FIXME : we should add an extra checks to ensure COM can be initialized properly before continuing */
4817 mono_init_com_types ();
4821 * LOCKING: this assumes the loader lock is held
4824 mono_class_setup_parent (MonoClass
*class, MonoClass
*parent
)
4826 gboolean system_namespace
;
4827 gboolean is_corlib
= is_corlib_image (class->image
);
4829 system_namespace
= !strcmp (class->name_space
, "System") && is_corlib
;
4831 /* if root of the hierarchy */
4832 if (system_namespace
&& !strcmp (class->name
, "Object")) {
4833 class->parent
= NULL
;
4834 class->instance_size
= sizeof (MonoObject
);
4837 if (!strcmp (class->name
, "<Module>")) {
4838 class->parent
= NULL
;
4839 class->instance_size
= 0;
4843 if (!MONO_CLASS_IS_INTERFACE (class)) {
4844 /* Imported COM Objects always derive from __ComObject. */
4845 if (MONO_CLASS_IS_IMPORT (class)) {
4846 init_com_from_comimport (class);
4847 if (parent
== mono_defaults
.object_class
)
4848 parent
= mono_defaults
.com_object_class
;
4851 /* set the parent to something useful and safe, but mark the type as broken */
4852 parent
= mono_defaults
.object_class
;
4853 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
4856 class->parent
= parent
;
4858 if (parent
->generic_class
&& !parent
->name
) {
4860 * If the parent is a generic instance, we may get
4861 * called before it is fully initialized, especially
4862 * before it has its name.
4867 class->marshalbyref
= parent
->marshalbyref
;
4868 class->contextbound
= parent
->contextbound
;
4869 class->delegate
= parent
->delegate
;
4870 if (MONO_CLASS_IS_IMPORT (class))
4871 class->is_com_object
= 1;
4873 class->is_com_object
= parent
->is_com_object
;
4875 if (system_namespace
) {
4876 if (*class->name
== 'M' && !strcmp (class->name
, "MarshalByRefObject"))
4877 class->marshalbyref
= 1;
4879 if (*class->name
== 'C' && !strcmp (class->name
, "ContextBoundObject"))
4880 class->contextbound
= 1;
4882 if (*class->name
== 'D' && !strcmp (class->name
, "Delegate"))
4883 class->delegate
= 1;
4886 if (class->parent
->enumtype
|| (is_corlib_image (class->parent
->image
) && (strcmp (class->parent
->name
, "ValueType") == 0) &&
4887 (strcmp (class->parent
->name_space
, "System") == 0)))
4888 class->valuetype
= 1;
4889 if (is_corlib_image (class->parent
->image
) && ((strcmp (class->parent
->name
, "Enum") == 0) && (strcmp (class->parent
->name_space
, "System") == 0))) {
4890 class->valuetype
= class->enumtype
= 1;
4892 /*class->enumtype = class->parent->enumtype; */
4893 mono_class_setup_supertypes (class);
4895 /* initialize com types if COM interfaces are present */
4896 if (MONO_CLASS_IS_IMPORT (class))
4897 init_com_from_comimport (class);
4898 class->parent
= NULL
;
4904 * mono_class_setup_supertypes:
4907 * Build the data structure needed to make fast type checks work.
4908 * This currently sets two fields in @class:
4909 * - idepth: distance between @class and System.Object in the type
4911 * - supertypes: array of classes: each element has a class in the hierarchy
4912 * starting from @class up to System.Object
4914 * LOCKING: this assumes the loader lock is held
4917 mono_class_setup_supertypes (MonoClass
*class)
4921 if (class->supertypes
)
4924 if (class->parent
&& !class->parent
->supertypes
)
4925 mono_class_setup_supertypes (class->parent
);
4927 class->idepth
= class->parent
->idepth
+ 1;
4931 ms
= MAX (MONO_DEFAULT_SUPERTABLE_SIZE
, class->idepth
);
4932 class->supertypes
= mono_image_alloc0 (class->image
, sizeof (MonoClass
*) * ms
);
4934 if (class->parent
) {
4935 class->supertypes
[class->idepth
- 1] = class;
4936 memcpy (class->supertypes
, class->parent
->supertypes
, class->parent
->idepth
* sizeof (gpointer
));
4938 class->supertypes
[0] = class;
4943 * mono_class_create_from_typedef:
4944 * @image: image where the token is valid
4945 * @type_token: typedef token
4947 * Create the MonoClass* representing the specified type token.
4948 * @type_token must be a TypeDef token.
4951 mono_class_create_from_typedef (MonoImage
*image
, guint32 type_token
)
4953 MonoTableInfo
*tt
= &image
->tables
[MONO_TABLE_TYPEDEF
];
4954 MonoClass
*class, *parent
= NULL
;
4955 guint32 cols
[MONO_TYPEDEF_SIZE
];
4956 guint32 cols_next
[MONO_TYPEDEF_SIZE
];
4957 guint tidx
= mono_metadata_token_index (type_token
);
4958 MonoGenericContext
*context
= NULL
;
4959 const char *name
, *nspace
;
4961 MonoClass
**interfaces
;
4962 guint32 field_last
, method_last
;
4963 guint32 nesting_tokeen
;
4965 if (mono_metadata_token_table (type_token
) != MONO_TABLE_TYPEDEF
|| tidx
> tt
->rows
)
4968 mono_loader_lock ();
4970 if ((class = mono_internal_hash_table_lookup (&image
->class_cache
, GUINT_TO_POINTER (type_token
)))) {
4971 mono_loader_unlock ();
4975 mono_metadata_decode_row (tt
, tidx
- 1, cols
, MONO_TYPEDEF_SIZE
);
4977 name
= mono_metadata_string_heap (image
, cols
[MONO_TYPEDEF_NAME
]);
4978 nspace
= mono_metadata_string_heap (image
, cols
[MONO_TYPEDEF_NAMESPACE
]);
4980 class = mono_image_alloc0 (image
, sizeof (MonoClass
));
4983 class->name_space
= nspace
;
4985 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD
);
4987 class->image
= image
;
4988 class->type_token
= type_token
;
4989 class->flags
= cols
[MONO_TYPEDEF_FLAGS
];
4991 mono_internal_hash_table_insert (&image
->class_cache
, GUINT_TO_POINTER (type_token
), class);
4993 classes_size
+= sizeof (MonoClass
);
4996 * Check whether we're a generic type definition.
4998 class->generic_container
= mono_metadata_load_generic_params (image
, class->type_token
, NULL
);
4999 if (class->generic_container
) {
5000 class->is_generic
= 1;
5001 class->generic_container
->owner
.klass
= class;
5002 context
= &class->generic_container
->context
;
5005 if (cols
[MONO_TYPEDEF_EXTENDS
]) {
5006 guint32 parent_token
= mono_metadata_token_from_dor (cols
[MONO_TYPEDEF_EXTENDS
]);
5008 if (mono_metadata_token_table (parent_token
) == MONO_TABLE_TYPESPEC
) {
5009 /*WARNING: this must satisfy mono_metadata_type_hash*/
5010 class->this_arg
.byref
= 1;
5011 class->this_arg
.data
.klass
= class;
5012 class->this_arg
.type
= MONO_TYPE_CLASS
;
5013 class->byval_arg
.data
.klass
= class;
5014 class->byval_arg
.type
= MONO_TYPE_CLASS
;
5016 parent
= mono_class_get_full (image
, parent_token
, context
);
5018 if (parent
== NULL
){
5019 mono_internal_hash_table_remove (&image
->class_cache
, GUINT_TO_POINTER (type_token
));
5020 mono_loader_unlock ();
5021 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED
);
5026 /* do this early so it's available for interfaces in setup_mono_type () */
5027 if ((nesting_tokeen
= mono_metadata_nested_in_typedef (image
, type_token
))) {
5028 class->nested_in
= mono_class_create_from_typedef (image
, nesting_tokeen
);
5029 if (!class->nested_in
) {
5030 mono_internal_hash_table_remove (&image
->class_cache
, GUINT_TO_POINTER (type_token
));
5031 mono_loader_unlock ();
5032 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED
);
5037 mono_class_setup_parent (class, parent
);
5039 /* uses ->valuetype, which is initialized by mono_class_setup_parent above */
5040 mono_class_setup_mono_type (class);
5042 if ((class->flags
& TYPE_ATTRIBUTE_STRING_FORMAT_MASK
) == TYPE_ATTRIBUTE_UNICODE_CLASS
)
5046 if ((class->flags
& TYPE_ATTRIBUTE_STRING_FORMAT_MASK
) == TYPE_ATTRIBUTE_AUTO_CLASS
)
5050 class->cast_class
= class->element_class
= class;
5052 if (!class->enumtype
) {
5053 if (!mono_metadata_interfaces_from_typedef_full (
5054 image
, type_token
, &interfaces
, &icount
, FALSE
, context
)){
5055 mono_loader_unlock ();
5056 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED
);
5060 class->interfaces
= interfaces
;
5061 class->interface_count
= icount
;
5062 class->interfaces_inited
= 1;
5065 /*g_print ("Load class %s\n", name);*/
5068 * Compute the field and method lists
5070 class->field
.first
= cols
[MONO_TYPEDEF_FIELD_LIST
] - 1;
5071 class->method
.first
= cols
[MONO_TYPEDEF_METHOD_LIST
] - 1;
5073 if (tt
->rows
> tidx
){
5074 mono_metadata_decode_row (tt
, tidx
, cols_next
, MONO_TYPEDEF_SIZE
);
5075 field_last
= cols_next
[MONO_TYPEDEF_FIELD_LIST
] - 1;
5076 method_last
= cols_next
[MONO_TYPEDEF_METHOD_LIST
] - 1;
5078 field_last
= image
->tables
[MONO_TABLE_FIELD
].rows
;
5079 method_last
= image
->tables
[MONO_TABLE_METHOD
].rows
;
5082 if (cols
[MONO_TYPEDEF_FIELD_LIST
] &&
5083 cols
[MONO_TYPEDEF_FIELD_LIST
] <= image
->tables
[MONO_TABLE_FIELD
].rows
)
5084 class->field
.count
= field_last
- class->field
.first
;
5086 class->field
.count
= 0;
5088 if (cols
[MONO_TYPEDEF_METHOD_LIST
] <= image
->tables
[MONO_TABLE_METHOD
].rows
)
5089 class->method
.count
= method_last
- class->method
.first
;
5091 class->method
.count
= 0;
5093 /* reserve space to store vector pointer in arrays */
5094 if (is_corlib_image (image
) && !strcmp (nspace
, "System") && !strcmp (name
, "Array")) {
5095 class->instance_size
+= 2 * sizeof (gpointer
);
5096 g_assert (class->field
.count
== 0);
5099 if (class->enumtype
) {
5100 MonoType
*enum_basetype
= mono_class_find_enum_basetype (class);
5101 if (!enum_basetype
) {
5102 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
5103 mono_loader_unlock ();
5104 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED
);
5107 class->cast_class
= class->element_class
= mono_class_from_mono_type (enum_basetype
);
5111 * If we're a generic type definition, load the constraints.
5112 * We must do this after the class has been constructed to make certain recursive scenarios
5115 if (class->generic_container
&& !mono_metadata_load_generic_param_constraints_full (image
, type_token
, class->generic_container
)){
5116 char *class_name
= g_strdup_printf("%s.%s", class->name_space
, class->name
);
5117 char *error
= concat_two_strings_with_zero (class->image
, class_name
, class->image
->assembly_name
);
5118 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, error
);
5119 g_free (class_name
);
5120 mono_loader_unlock ();
5121 mono_profiler_class_loaded (class, MONO_PROFILE_FAILED
);
5125 if (class->image
->assembly_name
&& !strcmp (class->image
->assembly_name
, "Mono.Simd") && !strcmp (nspace
, "Mono.Simd")) {
5126 if (!strncmp (name
, "Vector", 6))
5127 class->simd_type
= !strcmp (name
+ 6, "2d") || !strcmp (name
+ 6, "2ul") || !strcmp (name
+ 6, "2l") || !strcmp (name
+ 6, "4f") || !strcmp (name
+ 6, "4ui") || !strcmp (name
+ 6, "4i") || !strcmp (name
+ 6, "8s") || !strcmp (name
+ 6, "8us") || !strcmp (name
+ 6, "16b") || !strcmp (name
+ 6, "16sb");
5130 mono_loader_unlock ();
5132 mono_profiler_class_loaded (class, MONO_PROFILE_OK
);
5137 /** is klass Nullable<T>? */
5139 mono_class_is_nullable (MonoClass
*klass
)
5141 return klass
->generic_class
!= NULL
&&
5142 klass
->generic_class
->container_class
== mono_defaults
.generic_nullable_class
;
5146 /** if klass is T? return T */
5148 mono_class_get_nullable_param (MonoClass
*klass
)
5150 g_assert (mono_class_is_nullable (klass
));
5151 return mono_class_from_mono_type (klass
->generic_class
->context
.class_inst
->type_argv
[0]);
5155 * Create the `MonoClass' for an instantiation of a generic type.
5156 * We only do this if we actually need it.
5159 mono_generic_class_get_class (MonoGenericClass
*gclass
)
5161 MonoClass
*klass
, *gklass
;
5163 mono_loader_lock ();
5164 if (gclass
->cached_class
) {
5165 mono_loader_unlock ();
5166 return gclass
->cached_class
;
5169 gclass
->cached_class
= g_malloc0 (sizeof (MonoClass
));
5170 klass
= gclass
->cached_class
;
5172 gklass
= gclass
->container_class
;
5174 if (gklass
->nested_in
) {
5176 * FIXME: the nested type context should include everything the
5177 * nesting context should have, but it may also have additional
5178 * generic parameters...
5180 klass
->nested_in
= mono_class_inflate_generic_class (gklass
->nested_in
,
5181 mono_generic_class_get_context (gclass
));
5184 klass
->name
= gklass
->name
;
5185 klass
->name_space
= gklass
->name_space
;
5187 mono_profiler_class_event (klass
, MONO_PROFILE_START_LOAD
);
5189 klass
->image
= gklass
->image
;
5190 klass
->flags
= gklass
->flags
;
5191 klass
->type_token
= gklass
->type_token
;
5192 klass
->field
.count
= gklass
->field
.count
;
5194 klass
->is_inflated
= 1;
5195 klass
->generic_class
= gclass
;
5197 klass
->this_arg
.type
= klass
->byval_arg
.type
= MONO_TYPE_GENERICINST
;
5198 klass
->this_arg
.data
.generic_class
= klass
->byval_arg
.data
.generic_class
= gclass
;
5199 klass
->this_arg
.byref
= TRUE
;
5200 klass
->enumtype
= gklass
->enumtype
;
5201 klass
->valuetype
= gklass
->valuetype
;
5203 klass
->cast_class
= klass
->element_class
= klass
;
5205 if (mono_class_is_nullable (klass
))
5206 klass
->cast_class
= klass
->element_class
= mono_class_get_nullable_param (klass
);
5209 * We're not interested in the nested classes of a generic instance.
5210 * We use the generic type definition to look for nested classes.
5213 if (gklass
->parent
) {
5214 klass
->parent
= mono_class_inflate_generic_class (gklass
->parent
, mono_generic_class_get_context (gclass
));
5218 mono_class_setup_parent (klass
, klass
->parent
);
5220 if (klass
->enumtype
) {
5221 klass
->cast_class
= gklass
->cast_class
;
5222 klass
->element_class
= gklass
->element_class
;
5225 if (gclass
->is_dynamic
) {
5228 mono_class_setup_supertypes (klass
);
5230 if (klass
->enumtype
) {
5232 * For enums, gklass->fields might not been set, but instance_size etc. is
5233 * already set in mono_reflection_create_internal_class (). For non-enums,
5234 * these will be computed normally in mono_class_layout_fields ().
5236 klass
->instance_size
= gklass
->instance_size
;
5237 klass
->sizes
.class_size
= gklass
->sizes
.class_size
;
5238 klass
->size_inited
= 1;
5242 mono_profiler_class_loaded (klass
, MONO_PROFILE_OK
);
5244 inflated_classes
++;
5245 inflated_classes_size
+= sizeof (MonoClass
);
5247 mono_loader_unlock ();
5253 make_generic_param_class (MonoGenericParam
*param
, MonoImage
*image
, gboolean is_mvar
, MonoGenericParamInfo
*pinfo
)
5255 MonoClass
*klass
, **ptr
;
5257 MonoGenericContainer
*container
= mono_generic_param_owner (param
);
5261 image
= mono_defaults
.corlib
;
5263 klass
= mono_image_alloc0 (image
, sizeof (MonoClass
));
5264 classes_size
+= sizeof (MonoClass
);
5267 klass
->name
= pinfo
->name
;
5269 int n
= mono_generic_param_num (param
);
5270 klass
->name
= mono_image_alloc0 (image
, 16);
5271 sprintf ((char*)klass
->name
, "%d", n
);
5276 MonoMethod
*omethod
= container
->owner
.method
;
5277 klass
->name_space
= (omethod
&& omethod
->klass
) ? omethod
->klass
->name_space
: "";
5279 MonoClass
*oklass
= container
->owner
.klass
;
5280 klass
->name_space
= oklass
? oklass
->name_space
: "";
5283 klass
->name_space
= "";
5286 mono_profiler_class_event (klass
, MONO_PROFILE_START_LOAD
);
5290 for (ptr
= pinfo
->constraints
; ptr
&& *ptr
; ptr
++, count
++)
5294 if ((count
> 0) && !MONO_CLASS_IS_INTERFACE (pinfo
->constraints
[0])) {
5295 klass
->parent
= pinfo
->constraints
[0];
5297 } else if (pinfo
&& pinfo
->flags
& GENERIC_PARAMETER_ATTRIBUTE_VALUE_TYPE_CONSTRAINT
)
5298 klass
->parent
= mono_class_from_name (mono_defaults
.corlib
, "System", "ValueType");
5300 klass
->parent
= mono_defaults
.object_class
;
5303 if (count
- pos
> 0) {
5304 klass
->interface_count
= count
- pos
;
5305 klass
->interfaces
= mono_image_alloc0 (image
, sizeof (MonoClass
*) * (count
- pos
));
5306 klass
->interfaces_inited
= TRUE
;
5307 for (i
= pos
; i
< count
; i
++)
5308 klass
->interfaces
[i
- pos
] = pinfo
->constraints
[i
];
5311 klass
->image
= image
;
5313 klass
->inited
= TRUE
;
5314 klass
->cast_class
= klass
->element_class
= klass
;
5315 klass
->flags
= TYPE_ATTRIBUTE_PUBLIC
;
5317 klass
->this_arg
.type
= klass
->byval_arg
.type
= is_mvar
? MONO_TYPE_MVAR
: MONO_TYPE_VAR
;
5318 klass
->this_arg
.data
.generic_param
= klass
->byval_arg
.data
.generic_param
= param
;
5319 klass
->this_arg
.byref
= TRUE
;
5321 /* FIXME: shouldn't this be ->type_token? */
5322 klass
->sizes
.generic_param_token
= pinfo
? pinfo
->token
: 0;
5324 mono_class_setup_supertypes (klass
);
5326 if (count
- pos
> 0) {
5327 mono_class_setup_vtable (klass
->parent
);
5328 g_assert (!klass
->parent
->exception_type
);
5329 setup_interface_offsets (klass
, klass
->parent
->vtable_size
);
5335 #define FAST_CACHE_SIZE 16
5336 static MonoClass
*var_cache_fast
[FAST_CACHE_SIZE
];
5337 static MonoClass
*mvar_cache_fast
[FAST_CACHE_SIZE
];
5338 static GHashTable
*var_cache_slow
;
5339 static GHashTable
*mvar_cache_slow
;
5342 get_anon_gparam_class (MonoGenericParam
*param
, gboolean is_mvar
)
5344 int n
= mono_generic_param_num (param
);
5347 if (n
< FAST_CACHE_SIZE
)
5348 return (is_mvar
? mvar_cache_fast
: var_cache_fast
) [n
];
5349 ht
= is_mvar
? mvar_cache_slow
: var_cache_slow
;
5350 return ht
? g_hash_table_lookup (ht
, GINT_TO_POINTER (n
)) : NULL
;
5354 set_anon_gparam_class (MonoGenericParam
*param
, gboolean is_mvar
, MonoClass
*klass
)
5356 int n
= mono_generic_param_num (param
);
5359 if (n
< FAST_CACHE_SIZE
) {
5360 (is_mvar
? mvar_cache_fast
: var_cache_fast
) [n
] = klass
;
5363 ht
= is_mvar
? mvar_cache_slow
: var_cache_slow
;
5365 ht
= g_hash_table_new (NULL
, NULL
);
5367 mvar_cache_slow
= ht
;
5369 var_cache_slow
= ht
;
5372 g_hash_table_insert (ht
, GINT_TO_POINTER (n
), klass
);
5376 * LOCKING: Acquires the loader lock.
5379 mono_class_from_generic_parameter (MonoGenericParam
*param
, MonoImage
*image
, gboolean is_mvar
)
5381 MonoGenericContainer
*container
= mono_generic_param_owner (param
);
5382 MonoGenericParamInfo
*pinfo
;
5385 mono_loader_lock ();
5388 pinfo
= mono_generic_param_info (param
);
5389 if (pinfo
->pklass
) {
5390 mono_loader_unlock ();
5391 return pinfo
->pklass
;
5397 klass
= get_anon_gparam_class (param
, is_mvar
);
5399 mono_loader_unlock ();
5404 if (!image
&& container
) {
5406 MonoMethod
*method
= container
->owner
.method
;
5407 image
= (method
&& method
->klass
) ? method
->klass
->image
: NULL
;
5409 MonoClass
*klass
= container
->owner
.klass
;
5410 // FIXME: 'klass' should not be null
5411 // But, monodis creates GenericContainers without associating a owner to it
5412 image
= klass
? klass
->image
: NULL
;
5416 klass
= make_generic_param_class (param
, image
, is_mvar
, pinfo
);
5418 mono_memory_barrier ();
5421 pinfo
->pklass
= klass
;
5423 set_anon_gparam_class (param
, is_mvar
, klass
);
5425 mono_loader_unlock ();
5427 /* FIXME: Should this go inside 'make_generic_param_klass'? */
5428 mono_profiler_class_loaded (klass
, MONO_PROFILE_OK
);
5434 mono_ptr_class_get (MonoType
*type
)
5437 MonoClass
*el_class
;
5441 el_class
= mono_class_from_mono_type (type
);
5442 image
= el_class
->image
;
5444 mono_loader_lock ();
5446 if (!image
->ptr_cache
)
5447 image
->ptr_cache
= g_hash_table_new (mono_aligned_addr_hash
, NULL
);
5449 if ((result
= g_hash_table_lookup (image
->ptr_cache
, el_class
))) {
5450 mono_loader_unlock ();
5453 result
= mono_image_alloc0 (image
, sizeof (MonoClass
));
5455 classes_size
+= sizeof (MonoClass
);
5457 result
->parent
= NULL
; /* no parent for PTR types */
5458 result
->name_space
= el_class
->name_space
;
5459 name
= g_strdup_printf ("%s*", el_class
->name
);
5460 result
->name
= mono_image_strdup (image
, name
);
5463 mono_profiler_class_event (result
, MONO_PROFILE_START_LOAD
);
5465 result
->image
= el_class
->image
;
5466 result
->inited
= TRUE
;
5467 result
->flags
= TYPE_ATTRIBUTE_CLASS
| (el_class
->flags
& TYPE_ATTRIBUTE_VISIBILITY_MASK
);
5468 /* Can pointers get boxed? */
5469 result
->instance_size
= sizeof (gpointer
);
5470 result
->cast_class
= result
->element_class
= el_class
;
5471 result
->blittable
= TRUE
;
5473 result
->this_arg
.type
= result
->byval_arg
.type
= MONO_TYPE_PTR
;
5474 result
->this_arg
.data
.type
= result
->byval_arg
.data
.type
= &result
->element_class
->byval_arg
;
5475 result
->this_arg
.byref
= TRUE
;
5477 mono_class_setup_supertypes (result
);
5479 g_hash_table_insert (image
->ptr_cache
, el_class
, result
);
5481 mono_loader_unlock ();
5483 mono_profiler_class_loaded (result
, MONO_PROFILE_OK
);
5489 mono_fnptr_class_get (MonoMethodSignature
*sig
)
5492 static GHashTable
*ptr_hash
= NULL
;
5494 /* FIXME: These should be allocate from a mempool as well, but which one ? */
5496 mono_loader_lock ();
5499 ptr_hash
= g_hash_table_new (mono_aligned_addr_hash
, NULL
);
5501 if ((result
= g_hash_table_lookup (ptr_hash
, sig
))) {
5502 mono_loader_unlock ();
5505 result
= g_new0 (MonoClass
, 1);
5507 result
->parent
= NULL
; /* no parent for PTR types */
5508 result
->name_space
= "System";
5509 result
->name
= "MonoFNPtrFakeClass";
5511 mono_profiler_class_event (result
, MONO_PROFILE_START_LOAD
);
5513 result
->image
= mono_defaults
.corlib
; /* need to fix... */
5514 result
->inited
= TRUE
;
5515 result
->flags
= TYPE_ATTRIBUTE_CLASS
; /* | (el_class->flags & TYPE_ATTRIBUTE_VISIBILITY_MASK); */
5516 /* Can pointers get boxed? */
5517 result
->instance_size
= sizeof (gpointer
);
5518 result
->cast_class
= result
->element_class
= result
;
5519 result
->blittable
= TRUE
;
5521 result
->this_arg
.type
= result
->byval_arg
.type
= MONO_TYPE_FNPTR
;
5522 result
->this_arg
.data
.method
= result
->byval_arg
.data
.method
= sig
;
5523 result
->this_arg
.byref
= TRUE
;
5524 result
->blittable
= TRUE
;
5526 mono_class_setup_supertypes (result
);
5528 g_hash_table_insert (ptr_hash
, sig
, result
);
5530 mono_loader_unlock ();
5532 mono_profiler_class_loaded (result
, MONO_PROFILE_OK
);
5538 mono_class_from_mono_type (MonoType
*type
)
5540 switch (type
->type
) {
5541 case MONO_TYPE_OBJECT
:
5542 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.object_class
;
5543 case MONO_TYPE_VOID
:
5544 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.void_class
;
5545 case MONO_TYPE_BOOLEAN
:
5546 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.boolean_class
;
5547 case MONO_TYPE_CHAR
:
5548 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.char_class
;
5550 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.sbyte_class
;
5552 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.byte_class
;
5554 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.int16_class
;
5556 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.uint16_class
;
5558 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.int32_class
;
5560 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.uint32_class
;
5562 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.int_class
;
5564 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.uint_class
;
5566 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.int64_class
;
5568 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.uint64_class
;
5570 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.single_class
;
5572 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.double_class
;
5573 case MONO_TYPE_STRING
:
5574 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.string_class
;
5575 case MONO_TYPE_TYPEDBYREF
:
5576 return type
->data
.klass
? type
->data
.klass
: mono_defaults
.typed_reference_class
;
5577 case MONO_TYPE_ARRAY
:
5578 return mono_bounded_array_class_get (type
->data
.array
->eklass
, type
->data
.array
->rank
, TRUE
);
5580 return mono_ptr_class_get (type
->data
.type
);
5581 case MONO_TYPE_FNPTR
:
5582 return mono_fnptr_class_get (type
->data
.method
);
5583 case MONO_TYPE_SZARRAY
:
5584 return mono_array_class_get (type
->data
.klass
, 1);
5585 case MONO_TYPE_CLASS
:
5586 case MONO_TYPE_VALUETYPE
:
5587 return type
->data
.klass
;
5588 case MONO_TYPE_GENERICINST
:
5589 return mono_generic_class_get_class (type
->data
.generic_class
);
5591 return mono_class_from_generic_parameter (type
->data
.generic_param
, NULL
, FALSE
);
5592 case MONO_TYPE_MVAR
:
5593 return mono_class_from_generic_parameter (type
->data
.generic_param
, NULL
, TRUE
);
5595 g_warning ("mono_class_from_mono_type: implement me 0x%02x\n", type
->type
);
5596 g_assert_not_reached ();
5603 * mono_type_retrieve_from_typespec
5604 * @image: context where the image is created
5605 * @type_spec: typespec token
5606 * @context: the generic context used to evaluate generic instantiations in
5609 mono_type_retrieve_from_typespec (MonoImage
*image
, guint32 type_spec
, MonoGenericContext
*context
, gboolean
*did_inflate
, MonoError
*error
)
5611 MonoType
*t
= mono_type_create_from_typespec (image
, type_spec
);
5613 mono_error_init (error
);
5614 *did_inflate
= FALSE
;
5617 char *name
= mono_class_name_from_token (image
, type_spec
);
5618 char *assembly
= mono_assembly_name_from_token (image
, type_spec
);
5619 mono_error_set_type_load_name (error
, name
, assembly
, "Could not resolve typespec token %08x", type_spec
);
5623 if (context
&& (context
->class_inst
|| context
->method_inst
)) {
5624 MonoType
*inflated
= inflate_generic_type (NULL
, t
, context
, error
);
5626 if (!mono_error_ok (error
))
5631 *did_inflate
= TRUE
;
5638 * mono_class_create_from_typespec
5639 * @image: context where the image is created
5640 * @type_spec: typespec token
5641 * @context: the generic context used to evaluate generic instantiations in
5644 mono_class_create_from_typespec (MonoImage
*image
, guint32 type_spec
, MonoGenericContext
*context
, MonoError
*error
)
5647 gboolean inflated
= FALSE
;
5648 MonoType
*t
= mono_type_retrieve_from_typespec (image
, type_spec
, context
, &inflated
, error
);
5649 if (!mono_error_ok (error
))
5651 ret
= mono_class_from_mono_type (t
);
5653 mono_metadata_free_type (t
);
5658 * mono_bounded_array_class_get:
5659 * @element_class: element class
5660 * @rank: the dimension of the array class
5661 * @bounded: whenever the array has non-zero bounds
5663 * Returns: a class object describing the array with element type @element_type and
5667 mono_bounded_array_class_get (MonoClass
*eclass
, guint32 rank
, gboolean bounded
)
5671 MonoClass
*parent
= NULL
;
5672 GSList
*list
, *rootlist
= NULL
;
5675 gboolean corlib_type
= FALSE
;
5677 g_assert (rank
<= 255);
5680 /* bounded only matters for one-dimensional arrays */
5683 image
= eclass
->image
;
5685 if (rank
== 1 && !bounded
) {
5687 * This case is very frequent not just during compilation because of calls
5688 * from mono_class_from_mono_type (), mono_array_new (),
5689 * Array:CreateInstance (), etc, so use a separate cache + a separate lock.
5691 EnterCriticalSection (&image
->szarray_cache_lock
);
5692 if (!image
->szarray_cache
)
5693 image
->szarray_cache
= g_hash_table_new (mono_aligned_addr_hash
, NULL
);
5694 class = g_hash_table_lookup (image
->szarray_cache
, eclass
);
5695 LeaveCriticalSection (&image
->szarray_cache_lock
);
5699 mono_loader_lock ();
5701 mono_loader_lock ();
5703 if (!image
->array_cache
)
5704 image
->array_cache
= g_hash_table_new (mono_aligned_addr_hash
, NULL
);
5706 if ((rootlist
= list
= g_hash_table_lookup (image
->array_cache
, eclass
))) {
5707 for (; list
; list
= list
->next
) {
5709 if ((class->rank
== rank
) && (class->byval_arg
.type
== (((rank
> 1) || bounded
) ? MONO_TYPE_ARRAY
: MONO_TYPE_SZARRAY
))) {
5710 mono_loader_unlock ();
5717 /* for the building corlib use System.Array from it */
5718 if (image
->assembly
&& image
->assembly
->dynamic
&& image
->assembly_name
&& strcmp (image
->assembly_name
, "mscorlib") == 0) {
5719 parent
= mono_class_from_name (image
, "System", "Array");
5722 parent
= mono_defaults
.array_class
;
5723 if (!parent
->inited
)
5724 mono_class_init (parent
);
5727 class = mono_image_alloc0 (image
, sizeof (MonoClass
));
5729 class->image
= image
;
5730 class->name_space
= eclass
->name_space
;
5731 nsize
= strlen (eclass
->name
);
5732 name
= g_malloc (nsize
+ 2 + rank
+ 1);
5733 memcpy (name
, eclass
->name
, nsize
);
5736 memset (name
+ nsize
+ 1, ',', rank
- 1);
5738 name
[nsize
+ rank
] = '*';
5739 name
[nsize
+ rank
+ bounded
] = ']';
5740 name
[nsize
+ rank
+ bounded
+ 1] = 0;
5741 class->name
= mono_image_strdup (image
, name
);
5744 mono_profiler_class_event (class, MONO_PROFILE_START_LOAD
);
5746 classes_size
+= sizeof (MonoClass
);
5748 class->type_token
= 0;
5749 /* all arrays are marked serializable and sealed, bug #42779 */
5750 class->flags
= TYPE_ATTRIBUTE_CLASS
| TYPE_ATTRIBUTE_SERIALIZABLE
| TYPE_ATTRIBUTE_SEALED
| TYPE_ATTRIBUTE_PUBLIC
;
5751 class->parent
= parent
;
5752 class->instance_size
= mono_class_instance_size (class->parent
);
5754 if (eclass
->enumtype
&& !mono_class_enum_basetype (eclass
)) {
5755 if (!eclass
->ref_info_handle
|| eclass
->wastypebuilder
) {
5756 g_warning ("Only incomplete TypeBuilder objects are allowed to be an enum without base_type");
5757 g_assert (eclass
->ref_info_handle
&& !eclass
->wastypebuilder
);
5759 /* element_size -1 is ok as this is not an instantitable type*/
5760 class->sizes
.element_size
= -1;
5762 class->sizes
.element_size
= mono_class_array_element_size (eclass
);
5764 mono_class_setup_supertypes (class);
5766 if (eclass
->generic_class
)
5767 mono_class_init (eclass
);
5768 if (!eclass
->size_inited
)
5769 mono_class_setup_fields (eclass
);
5770 if (eclass
->exception_type
) /*FIXME we fail the array type, but we have to let other fields be set.*/
5771 mono_class_set_failure (class, MONO_EXCEPTION_TYPE_LOAD
, NULL
);
5773 class->has_references
= MONO_TYPE_IS_REFERENCE (&eclass
->byval_arg
) || eclass
->has_references
? TRUE
: FALSE
;
5777 if (eclass
->enumtype
)
5778 class->cast_class
= eclass
->element_class
;
5780 class->cast_class
= eclass
;
5782 class->element_class
= eclass
;
5784 if ((rank
> 1) || bounded
) {
5785 MonoArrayType
*at
= mono_image_alloc0 (image
, sizeof (MonoArrayType
));
5786 class->byval_arg
.type
= MONO_TYPE_ARRAY
;
5787 class->byval_arg
.data
.array
= at
;
5788 at
->eklass
= eclass
;
5790 /* FIXME: complete.... */
5792 class->byval_arg
.type
= MONO_TYPE_SZARRAY
;
5793 class->byval_arg
.data
.klass
= eclass
;
5795 class->this_arg
= class->byval_arg
;
5796 class->this_arg
.byref
= 1;
5801 class->generic_container
= eclass
->generic_container
;
5803 if (rank
== 1 && !bounded
) {
5804 MonoClass
*prev_class
;
5806 EnterCriticalSection (&image
->szarray_cache_lock
);
5807 prev_class
= g_hash_table_lookup (image
->szarray_cache
, eclass
);
5809 /* Someone got in before us */
5812 g_hash_table_insert (image
->szarray_cache
, eclass
, class);
5813 LeaveCriticalSection (&image
->szarray_cache_lock
);
5815 list
= g_slist_append (rootlist
, class);
5816 g_hash_table_insert (image
->array_cache
, eclass
, list
);
5819 mono_loader_unlock ();
5821 mono_profiler_class_loaded (class, MONO_PROFILE_OK
);
5827 * mono_array_class_get:
5828 * @element_class: element class
5829 * @rank: the dimension of the array class
5831 * Returns: a class object describing the array with element type @element_type and
5835 mono_array_class_get (MonoClass
*eclass
, guint32 rank
)
5837 return mono_bounded_array_class_get (eclass
, rank
, FALSE
);
5841 * mono_class_instance_size:
5844 * Returns: the size of an object instance
5847 mono_class_instance_size (MonoClass
*klass
)
5849 if (!klass
->size_inited
)
5850 mono_class_init (klass
);
5852 return klass
->instance_size
;
5856 * mono_class_min_align:
5859 * Returns: minimm alignment requirements
5862 mono_class_min_align (MonoClass
*klass
)
5864 if (!klass
->size_inited
)
5865 mono_class_init (klass
);
5867 return klass
->min_align
;
5871 * mono_class_value_size:
5874 * This function is used for value types, and return the
5875 * space and the alignment to store that kind of value object.
5877 * Returns: the size of a value of kind @klass
5880 mono_class_value_size (MonoClass
*klass
, guint32
*align
)
5884 /* fixme: check disable, because we still have external revereces to
5885 * mscorlib and Dummy Objects
5887 /*g_assert (klass->valuetype);*/
5889 size
= mono_class_instance_size (klass
) - sizeof (MonoObject
);
5892 *align
= klass
->min_align
;
5898 * mono_class_data_size:
5901 * Returns: the size of the static class data
5904 mono_class_data_size (MonoClass
*klass
)
5907 mono_class_init (klass
);
5909 /* in arrays, sizes.class_size is unioned with element_size
5910 * and arrays have no static fields
5914 return klass
->sizes
.class_size
;
5918 * Auxiliary routine to mono_class_get_field
5920 * Takes a field index instead of a field token.
5922 static MonoClassField
*
5923 mono_class_get_field_idx (MonoClass
*class, int idx
)
5925 mono_class_setup_fields_locking (class);
5926 if (class->exception_type
)
5930 if (class->image
->uncompressed_metadata
) {
5932 * class->field.first points to the FieldPtr table, while idx points into the
5933 * Field table, so we have to do a search.
5935 /*FIXME this is broken for types with multiple fields with the same name.*/
5936 const char *name
= mono_metadata_string_heap (class->image
, mono_metadata_decode_row_col (&class->image
->tables
[MONO_TABLE_FIELD
], idx
, MONO_FIELD_NAME
));
5939 for (i
= 0; i
< class->field
.count
; ++i
)
5940 if (mono_field_get_name (&class->fields
[i
]) == name
)
5941 return &class->fields
[i
];
5942 g_assert_not_reached ();
5944 if (class->field
.count
) {
5945 if ((idx
>= class->field
.first
) && (idx
< class->field
.first
+ class->field
.count
)){
5946 return &class->fields
[idx
- class->field
.first
];
5950 class = class->parent
;
5956 * mono_class_get_field:
5957 * @class: the class to lookup the field.
5958 * @field_token: the field token
5960 * Returns: A MonoClassField representing the type and offset of
5961 * the field, or a NULL value if the field does not belong to this
5965 mono_class_get_field (MonoClass
*class, guint32 field_token
)
5967 int idx
= mono_metadata_token_index (field_token
);
5969 g_assert (mono_metadata_token_code (field_token
) == MONO_TOKEN_FIELD_DEF
);
5971 return mono_class_get_field_idx (class, idx
- 1);
5975 * mono_class_get_field_from_name:
5976 * @klass: the class to lookup the field.
5977 * @name: the field name
5979 * Search the class @klass and it's parents for a field with the name @name.
5981 * Returns: the MonoClassField pointer of the named field or NULL
5984 mono_class_get_field_from_name (MonoClass
*klass
, const char *name
)
5986 return mono_class_get_field_from_name_full (klass
, name
, NULL
);
5990 * mono_class_get_field_from_name_full:
5991 * @klass: the class to lookup the field.
5992 * @name: the field name
5993 * @type: the type of the fields. This optional.
5995 * Search the class @klass and it's parents for a field with the name @name and type @type.
5997 * If @klass is an inflated generic type, the type comparison is done with the equivalent field
5998 * of its generic type definition.
6000 * Returns: the MonoClassField pointer of the named field or NULL
6003 mono_class_get_field_from_name_full (MonoClass
*klass
, const char *name
, MonoType
*type
)
6007 mono_class_setup_fields_locking (klass
);
6008 if (klass
->exception_type
)
6012 for (i
= 0; i
< klass
->field
.count
; ++i
) {
6013 MonoClassField
*field
= &klass
->fields
[i
];
6015 if (strcmp (name
, mono_field_get_name (field
)) != 0)
6019 MonoType
*field_type
= mono_metadata_get_corresponding_field_from_generic_type_definition (field
)->type
;
6020 if (!mono_metadata_type_equal_full (type
, field_type
, TRUE
))
6025 klass
= klass
->parent
;
6031 * mono_class_get_field_token:
6032 * @field: the field we need the token of
6034 * Get the token of a field. Note that the tokesn is only valid for the image
6035 * the field was loaded from. Don't use this function for fields in dynamic types.
6037 * Returns: the token representing the field in the image it was loaded from.
6040 mono_class_get_field_token (MonoClassField
*field
)
6042 MonoClass
*klass
= field
->parent
;
6045 mono_class_setup_fields_locking (klass
);
6046 if (klass
->exception_type
)
6050 for (i
= 0; i
< klass
->field
.count
; ++i
) {
6051 if (&klass
->fields
[i
] == field
) {
6052 int idx
= klass
->field
.first
+ i
+ 1;
6054 if (klass
->image
->uncompressed_metadata
)
6055 idx
= mono_metadata_translate_token_index (klass
->image
, MONO_TABLE_FIELD
, idx
);
6056 return mono_metadata_make_token (MONO_TABLE_FIELD
, idx
);
6059 klass
= klass
->parent
;
6062 g_assert_not_reached ();
6067 mono_field_get_index (MonoClassField
*field
)
6069 int index
= field
- field
->parent
->fields
;
6071 g_assert (index
>= 0 && index
< field
->parent
->field
.count
);
6077 * mono_class_get_field_default_value:
6079 * Return the default value of the field as a pointer into the metadata blob.
6082 mono_class_get_field_default_value (MonoClassField
*field
, MonoTypeEnum
*def_type
)
6085 guint32 constant_cols
[MONO_CONSTANT_SIZE
];
6087 MonoClass
*klass
= field
->parent
;
6089 g_assert (field
->type
->attrs
& FIELD_ATTRIBUTE_HAS_DEFAULT
);
6091 if (!klass
->ext
|| !klass
->ext
->field_def_values
) {
6092 mono_loader_lock ();
6093 mono_class_alloc_ext (klass
);
6094 if (!klass
->ext
->field_def_values
)
6095 klass
->ext
->field_def_values
= mono_image_alloc0 (klass
->image
, sizeof (MonoFieldDefaultValue
) * klass
->field
.count
);
6096 mono_loader_unlock ();
6099 field_index
= mono_field_get_index (field
);
6101 if (!klass
->ext
->field_def_values
[field_index
].data
) {
6102 cindex
= mono_metadata_get_constant_index (field
->parent
->image
, mono_class_get_field_token (field
), 0);
6104 g_assert (!(field
->type
->attrs
& FIELD_ATTRIBUTE_HAS_FIELD_RVA
));
6106 mono_metadata_decode_row (&field
->parent
->image
->tables
[MONO_TABLE_CONSTANT
], cindex
- 1, constant_cols
, MONO_CONSTANT_SIZE
);
6107 klass
->ext
->field_def_values
[field_index
].def_type
= constant_cols
[MONO_CONSTANT_TYPE
];
6108 klass
->ext
->field_def_values
[field_index
].data
= (gpointer
)mono_metadata_blob_heap (field
->parent
->image
, constant_cols
[MONO_CONSTANT_VALUE
]);
6111 *def_type
= klass
->ext
->field_def_values
[field_index
].def_type
;
6112 return klass
->ext
->field_def_values
[field_index
].data
;
6116 * mono_class_get_property_default_value:
6118 * Return the default value of the field as a pointer into the metadata blob.
6121 mono_class_get_property_default_value (MonoProperty
*property
, MonoTypeEnum
*def_type
)
6124 guint32 constant_cols
[MONO_CONSTANT_SIZE
];
6125 MonoClass
*klass
= property
->parent
;
6127 g_assert (property
->attrs
& PROPERTY_ATTRIBUTE_HAS_DEFAULT
);
6128 /*We don't cache here because it is not used by C# so it's quite rare.*/
6130 cindex
= mono_metadata_get_constant_index (klass
->image
, mono_class_get_property_token (property
), 0);
6134 mono_metadata_decode_row (&klass
->image
->tables
[MONO_TABLE_CONSTANT
], cindex
- 1, constant_cols
, MONO_CONSTANT_SIZE
);
6135 *def_type
= constant_cols
[MONO_CONSTANT_TYPE
];
6136 return (gpointer
)mono_metadata_blob_heap (klass
->image
, constant_cols
[MONO_CONSTANT_VALUE
]);
6140 mono_class_get_event_token (MonoEvent
*event
)
6142 MonoClass
*klass
= event
->parent
;
6147 for (i
= 0; i
< klass
->ext
->event
.count
; ++i
) {
6148 if (&klass
->ext
->events
[i
] == event
)
6149 return mono_metadata_make_token (MONO_TABLE_EVENT
, klass
->ext
->event
.first
+ i
+ 1);
6152 klass
= klass
->parent
;
6155 g_assert_not_reached ();
6160 mono_class_get_property_from_name (MonoClass
*klass
, const char *name
)
6164 gpointer iter
= NULL
;
6165 while ((p
= mono_class_get_properties (klass
, &iter
))) {
6166 if (! strcmp (name
, p
->name
))
6169 klass
= klass
->parent
;
6175 mono_class_get_property_token (MonoProperty
*prop
)
6177 MonoClass
*klass
= prop
->parent
;
6181 gpointer iter
= NULL
;
6182 while ((p
= mono_class_get_properties (klass
, &iter
))) {
6183 if (&klass
->ext
->properties
[i
] == prop
)
6184 return mono_metadata_make_token (MONO_TABLE_PROPERTY
, klass
->ext
->property
.first
+ i
+ 1);
6188 klass
= klass
->parent
;
6191 g_assert_not_reached ();
6196 mono_class_name_from_token (MonoImage
*image
, guint32 type_token
)
6198 const char *name
, *nspace
;
6200 return g_strdup_printf ("DynamicType 0x%08x", type_token
);
6202 switch (type_token
& 0xff000000){
6203 case MONO_TOKEN_TYPE_DEF
: {
6204 guint32 cols
[MONO_TYPEDEF_SIZE
];
6205 MonoTableInfo
*tt
= &image
->tables
[MONO_TABLE_TYPEDEF
];
6206 guint tidx
= mono_metadata_token_index (type_token
);
6208 if (tidx
> tt
->rows
)
6209 return g_strdup_printf ("Invalid type token 0x%08x", type_token
);
6211 mono_metadata_decode_row (tt
, tidx
- 1, cols
, MONO_TYPEDEF_SIZE
);
6212 name
= mono_metadata_string_heap (image
, cols
[MONO_TYPEDEF_NAME
]);
6213 nspace
= mono_metadata_string_heap (image
, cols
[MONO_TYPEDEF_NAMESPACE
]);
6214 if (strlen (nspace
) == 0)
6215 return g_strdup_printf ("%s", name
);
6217 return g_strdup_printf ("%s.%s", nspace
, name
);
6220 case MONO_TOKEN_TYPE_REF
: {
6221 guint32 cols
[MONO_TYPEREF_SIZE
];
6222 MonoTableInfo
*t
= &image
->tables
[MONO_TABLE_TYPEREF
];
6223 guint tidx
= mono_metadata_token_index (type_token
);
6226 return g_strdup_printf ("Invalid type token 0x%08x", type_token
);
6227 mono_metadata_decode_row (t
, tidx
-1, cols
, MONO_TYPEREF_SIZE
);
6228 name
= mono_metadata_string_heap (image
, cols
[MONO_TYPEREF_NAME
]);
6229 nspace
= mono_metadata_string_heap (image
, cols
[MONO_TYPEREF_NAMESPACE
]);
6230 if (strlen (nspace
) == 0)
6231 return g_strdup_printf ("%s", name
);
6233 return g_strdup_printf ("%s.%s", nspace
, name
);
6236 case MONO_TOKEN_TYPE_SPEC
:
6237 return g_strdup_printf ("Typespec 0x%08x", type_token
);
6239 return g_strdup_printf ("Invalid type token 0x%08x", type_token
);
6244 mono_assembly_name_from_token (MonoImage
*image
, guint32 type_token
)
6247 return g_strdup_printf ("DynamicAssembly %s", image
->name
);
6249 switch (type_token
& 0xff000000){
6250 case MONO_TOKEN_TYPE_DEF
:
6251 return mono_stringify_assembly_name (&image
->assembly
->aname
);
6253 case MONO_TOKEN_TYPE_REF
: {
6254 MonoAssemblyName aname
;
6255 guint32 cols
[MONO_TYPEREF_SIZE
];
6256 MonoTableInfo
*t
= &image
->tables
[MONO_TABLE_TYPEREF
];
6257 guint32 idx
= mono_metadata_token_index (type_token
);
6260 return g_strdup_printf ("Invalid type token 0x%08x", type_token
);
6262 mono_metadata_decode_row (t
, idx
-1, cols
, MONO_TYPEREF_SIZE
);
6264 idx
= cols
[MONO_TYPEREF_SCOPE
] >> MONO_RESOLTION_SCOPE_BITS
;
6265 switch (cols
[MONO_TYPEREF_SCOPE
] & MONO_RESOLTION_SCOPE_MASK
) {
6266 case MONO_RESOLTION_SCOPE_MODULE
:
6268 return g_strdup ("");
6269 case MONO_RESOLTION_SCOPE_MODULEREF
:
6271 return g_strdup ("");
6272 case MONO_RESOLTION_SCOPE_TYPEREF
:
6274 return g_strdup ("");
6275 case MONO_RESOLTION_SCOPE_ASSEMBLYREF
:
6276 mono_assembly_get_assemblyref (image
, idx
- 1, &aname
);
6277 return mono_stringify_assembly_name (&aname
);
6279 g_assert_not_reached ();
6283 case MONO_TOKEN_TYPE_SPEC
:
6285 return g_strdup ("");
6287 g_assert_not_reached ();
6294 * mono_class_get_full:
6295 * @image: the image where the class resides
6296 * @type_token: the token for the class
6297 * @context: the generic context used to evaluate generic instantiations in
6299 * Returns: the MonoClass that represents @type_token in @image
6302 mono_class_get_full (MonoImage
*image
, guint32 type_token
, MonoGenericContext
*context
)
6305 MonoClass
*class = NULL
;
6307 if (image
->dynamic
) {
6308 int table
= mono_metadata_token_table (type_token
);
6310 if (table
!= MONO_TABLE_TYPEDEF
&& table
!= MONO_TABLE_TYPEREF
&& table
!= MONO_TABLE_TYPESPEC
) {
6311 mono_loader_set_error_bad_image (g_strdup ("Bad type token."));
6314 return mono_lookup_dynamic_token (image
, type_token
, context
);
6317 switch (type_token
& 0xff000000){
6318 case MONO_TOKEN_TYPE_DEF
:
6319 class = mono_class_create_from_typedef (image
, type_token
);
6321 case MONO_TOKEN_TYPE_REF
:
6322 class = mono_class_from_typeref (image
, type_token
);
6324 case MONO_TOKEN_TYPE_SPEC
:
6325 class = mono_class_create_from_typespec (image
, type_token
, context
, &error
);
6326 if (!mono_error_ok (&error
)) {
6327 /*FIXME don't swallow the error message*/
6328 mono_error_cleanup (&error
);
6332 g_warning ("unknown token type %x", type_token
& 0xff000000);
6333 g_assert_not_reached ();
6337 char *name
= mono_class_name_from_token (image
, type_token
);
6338 char *assembly
= mono_assembly_name_from_token (image
, type_token
);
6339 mono_loader_set_error_type_load (name
, assembly
);
6347 * mono_type_get_full:
6348 * @image: the image where the type resides
6349 * @type_token: the token for the type
6350 * @context: the generic context used to evaluate generic instantiations in
6352 * This functions exists to fullfill the fact that sometimes it's desirable to have access to the
6354 * Returns: the MonoType that represents @type_token in @image
6357 mono_type_get_full (MonoImage
*image
, guint32 type_token
, MonoGenericContext
*context
)
6360 MonoType
*type
= NULL
;
6361 gboolean inflated
= FALSE
;
6363 //FIXME: this will not fix the very issue for which mono_type_get_full exists -but how to do it then?
6365 return mono_class_get_type (mono_lookup_dynamic_token (image
, type_token
, context
));
6367 if ((type_token
& 0xff000000) != MONO_TOKEN_TYPE_SPEC
) {
6368 MonoClass
*class = mono_class_get_full (image
, type_token
, context
);
6369 return class ? mono_class_get_type (class) : NULL
;
6372 type
= mono_type_retrieve_from_typespec (image
, type_token
, context
, &inflated
, &error
);
6374 if (!mono_error_ok (&error
)) {
6375 /*FIXME don't swalloc the error message.*/
6376 char *name
= mono_class_name_from_token (image
, type_token
);
6377 char *assembly
= mono_assembly_name_from_token (image
, type_token
);
6379 g_warning ("Error loading type %s from %s due to %s", name
, assembly
, mono_error_get_message (&error
));
6381 mono_error_cleanup (&error
);
6382 mono_loader_set_error_type_load (name
, assembly
);
6387 MonoType
*tmp
= type
;
6388 type
= mono_class_get_type (mono_class_from_mono_type (type
));
6389 /* FIXME: This is a workaround fo the fact that a typespec token sometimes reference to the generic type definition.
6390 * A MonoClass::byval_arg of a generic type definion has type CLASS.
6391 * Some parts of mono create a GENERICINST to reference a generic type definition and this generates confict with byval_arg.
6393 * The long term solution is to chaise this places and make then set MonoType::type correctly.
6395 if (type
->type
!= tmp
->type
)
6398 mono_metadata_free_type (tmp
);
6405 mono_class_get (MonoImage
*image
, guint32 type_token
)
6407 return mono_class_get_full (image
, type_token
, NULL
);
6411 * mono_image_init_name_cache:
6413 * Initializes the class name cache stored in image->name_cache.
6415 * LOCKING: Acquires the corresponding image lock.
6418 mono_image_init_name_cache (MonoImage
*image
)
6420 MonoTableInfo
*t
= &image
->tables
[MONO_TABLE_TYPEDEF
];
6421 guint32 cols
[MONO_TYPEDEF_SIZE
];
6424 guint32 i
, visib
, nspace_index
;
6425 GHashTable
*name_cache2
, *nspace_table
;
6427 mono_image_lock (image
);
6429 if (image
->name_cache
) {
6430 mono_image_unlock (image
);
6434 image
->name_cache
= g_hash_table_new (g_str_hash
, g_str_equal
);
6436 if (image
->dynamic
) {
6437 mono_image_unlock (image
);
6441 /* Temporary hash table to avoid lookups in the nspace_table */
6442 name_cache2
= g_hash_table_new (NULL
, NULL
);
6444 for (i
= 1; i
<= t
->rows
; ++i
) {
6445 mono_metadata_decode_row (t
, i
- 1, cols
, MONO_TYPEDEF_SIZE
);
6446 visib
= cols
[MONO_TYPEDEF_FLAGS
] & TYPE_ATTRIBUTE_VISIBILITY_MASK
;
6448 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6449 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6451 if (visib
>= TYPE_ATTRIBUTE_NESTED_PUBLIC
&& visib
<= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM
)
6453 name
= mono_metadata_string_heap (image
, cols
[MONO_TYPEDEF_NAME
]);
6454 nspace
= mono_metadata_string_heap (image
, cols
[MONO_TYPEDEF_NAMESPACE
]);
6456 nspace_index
= cols
[MONO_TYPEDEF_NAMESPACE
];
6457 nspace_table
= g_hash_table_lookup (name_cache2
, GUINT_TO_POINTER (nspace_index
));
6458 if (!nspace_table
) {
6459 nspace_table
= g_hash_table_new (g_str_hash
, g_str_equal
);
6460 g_hash_table_insert (image
->name_cache
, (char*)nspace
, nspace_table
);
6461 g_hash_table_insert (name_cache2
, GUINT_TO_POINTER (nspace_index
),
6464 g_hash_table_insert (nspace_table
, (char *) name
, GUINT_TO_POINTER (i
));
6467 /* Load type names from EXPORTEDTYPES table */
6469 MonoTableInfo
*t
= &image
->tables
[MONO_TABLE_EXPORTEDTYPE
];
6470 guint32 cols
[MONO_EXP_TYPE_SIZE
];
6473 for (i
= 0; i
< t
->rows
; ++i
) {
6474 mono_metadata_decode_row (t
, i
, cols
, MONO_EXP_TYPE_SIZE
);
6475 name
= mono_metadata_string_heap (image
, cols
[MONO_EXP_TYPE_NAME
]);
6476 nspace
= mono_metadata_string_heap (image
, cols
[MONO_EXP_TYPE_NAMESPACE
]);
6478 nspace_index
= cols
[MONO_EXP_TYPE_NAMESPACE
];
6479 nspace_table
= g_hash_table_lookup (name_cache2
, GUINT_TO_POINTER (nspace_index
));
6480 if (!nspace_table
) {
6481 nspace_table
= g_hash_table_new (g_str_hash
, g_str_equal
);
6482 g_hash_table_insert (image
->name_cache
, (char*)nspace
, nspace_table
);
6483 g_hash_table_insert (name_cache2
, GUINT_TO_POINTER (nspace_index
),
6486 g_hash_table_insert (nspace_table
, (char *) name
, GUINT_TO_POINTER (mono_metadata_make_token (MONO_TABLE_EXPORTEDTYPE
, i
+ 1)));
6490 g_hash_table_destroy (name_cache2
);
6491 mono_image_unlock (image
);
6494 /*FIXME Only dynamic assemblies should allow this operation.*/
6496 mono_image_add_to_name_cache (MonoImage
*image
, const char *nspace
,
6497 const char *name
, guint32 index
)
6499 GHashTable
*nspace_table
;
6500 GHashTable
*name_cache
;
6503 mono_image_lock (image
);
6505 if (!image
->name_cache
)
6506 mono_image_init_name_cache (image
);
6508 name_cache
= image
->name_cache
;
6509 if (!(nspace_table
= g_hash_table_lookup (name_cache
, nspace
))) {
6510 nspace_table
= g_hash_table_new (g_str_hash
, g_str_equal
);
6511 g_hash_table_insert (name_cache
, (char *)nspace
, (char *)nspace_table
);
6514 if ((old_index
= GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table
, (char*) name
))))
6515 g_error ("overrwritting old token %x on image %s for type %s::%s", old_index
, image
->name
, nspace
, name
);
6517 g_hash_table_insert (nspace_table
, (char *) name
, GUINT_TO_POINTER (index
));
6519 mono_image_unlock (image
);
6528 find_nocase (gpointer key
, gpointer value
, gpointer user_data
)
6530 char *name
= (char*)key
;
6531 FindUserData
*data
= (FindUserData
*)user_data
;
6533 if (!data
->value
&& (mono_utf8_strcasecmp (name
, (char*)data
->key
) == 0))
6534 data
->value
= value
;
6538 * mono_class_from_name_case:
6539 * @image: The MonoImage where the type is looked up in
6540 * @name_space: the type namespace
6541 * @name: the type short name.
6543 * Obtains a MonoClass with a given namespace and a given name which
6544 * is located in the given MonoImage. The namespace and name
6545 * lookups are case insensitive.
6548 mono_class_from_name_case (MonoImage
*image
, const char* name_space
, const char *name
)
6550 MonoTableInfo
*t
= &image
->tables
[MONO_TABLE_TYPEDEF
];
6551 guint32 cols
[MONO_TYPEDEF_SIZE
];
6556 if (image
->dynamic
) {
6558 FindUserData user_data
;
6560 mono_image_lock (image
);
6562 if (!image
->name_cache
)
6563 mono_image_init_name_cache (image
);
6565 user_data
.key
= name_space
;
6566 user_data
.value
= NULL
;
6567 g_hash_table_foreach (image
->name_cache
, find_nocase
, &user_data
);
6569 if (user_data
.value
) {
6570 GHashTable
*nspace_table
= (GHashTable
*)user_data
.value
;
6572 user_data
.key
= name
;
6573 user_data
.value
= NULL
;
6575 g_hash_table_foreach (nspace_table
, find_nocase
, &user_data
);
6577 if (user_data
.value
)
6578 token
= GPOINTER_TO_UINT (user_data
.value
);
6581 mono_image_unlock (image
);
6584 return mono_class_get (image
, MONO_TOKEN_TYPE_DEF
| token
);
6590 /* add a cache if needed */
6591 for (i
= 1; i
<= t
->rows
; ++i
) {
6592 mono_metadata_decode_row (t
, i
- 1, cols
, MONO_TYPEDEF_SIZE
);
6593 visib
= cols
[MONO_TYPEDEF_FLAGS
] & TYPE_ATTRIBUTE_VISIBILITY_MASK
;
6595 * Nested types are accessed from the nesting name. We use the fact that nested types use different visibility flags
6596 * than toplevel types, thus avoiding the need to grovel through the NESTED_TYPE table
6598 if (visib
>= TYPE_ATTRIBUTE_NESTED_PUBLIC
&& visib
<= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM
)
6600 n
= mono_metadata_string_heap (image
, cols
[MONO_TYPEDEF_NAME
]);
6601 nspace
= mono_metadata_string_heap (image
, cols
[MONO_TYPEDEF_NAMESPACE
]);
6602 if (mono_utf8_strcasecmp (n
, name
) == 0 && mono_utf8_strcasecmp (nspace
, name_space
) == 0)
6603 return mono_class_get (image
, MONO_TOKEN_TYPE_DEF
| i
);
6609 return_nested_in (MonoClass
*class, char *nested
)
6612 char *s
= strchr (nested
, '/');
6613 gpointer iter
= NULL
;
6620 while ((found
= mono_class_get_nested_types (class, &iter
))) {
6621 if (strcmp (found
->name
, nested
) == 0) {
6623 return return_nested_in (found
, s
);
6631 search_modules (MonoImage
*image
, const char *name_space
, const char *name
)
6633 MonoTableInfo
*file_table
= &image
->tables
[MONO_TABLE_FILE
];
6634 MonoImage
*file_image
;
6639 * The EXPORTEDTYPES table only contains public types, so have to search the
6641 * Note: image->modules contains the contents of the MODULEREF table, while
6642 * the real module list is in the FILE table.
6644 for (i
= 0; i
< file_table
->rows
; i
++) {
6645 guint32 cols
[MONO_FILE_SIZE
];
6646 mono_metadata_decode_row (file_table
, i
, cols
, MONO_FILE_SIZE
);
6647 if (cols
[MONO_FILE_FLAGS
] == FILE_CONTAINS_NO_METADATA
)
6650 file_image
= mono_image_load_file_for_image (image
, i
+ 1);
6652 class = mono_class_from_name (file_image
, name_space
, name
);
6662 * mono_class_from_name:
6663 * @image: The MonoImage where the type is looked up in
6664 * @name_space: the type namespace
6665 * @name: the type short name.
6667 * Obtains a MonoClass with a given namespace and a given name which
6668 * is located in the given MonoImage.
6671 mono_class_from_name (MonoImage
*image
, const char* name_space
, const char *name
)
6673 GHashTable
*nspace_table
;
6674 MonoImage
*loaded_image
;
6681 if ((nested
= strchr (name
, '/'))) {
6682 int pos
= nested
- name
;
6683 int len
= strlen (name
);
6686 memcpy (buf
, name
, len
+ 1);
6688 nested
= buf
+ pos
+ 1;
6692 if (get_class_from_name
) {
6693 gboolean res
= get_class_from_name (image
, name_space
, name
, &class);
6696 class = search_modules (image
, name_space
, name
);
6698 return class ? return_nested_in (class, nested
) : NULL
;
6704 mono_image_lock (image
);
6706 if (!image
->name_cache
)
6707 mono_image_init_name_cache (image
);
6709 nspace_table
= g_hash_table_lookup (image
->name_cache
, name_space
);
6712 token
= GPOINTER_TO_UINT (g_hash_table_lookup (nspace_table
, name
));
6714 mono_image_unlock (image
);
6716 if (!token
&& image
->dynamic
&& image
->modules
) {
6717 /* Search modules as well */
6718 for (i
= 0; i
< image
->module_count
; ++i
) {
6719 MonoImage
*module
= image
->modules
[i
];
6721 class = mono_class_from_name (module
, name_space
, name
);
6728 class = search_modules (image
, name_space
, name
);
6736 if (mono_metadata_token_table (token
) == MONO_TABLE_EXPORTEDTYPE
) {
6737 MonoTableInfo
*t
= &image
->tables
[MONO_TABLE_EXPORTEDTYPE
];
6738 guint32 cols
[MONO_EXP_TYPE_SIZE
];
6741 idx
= mono_metadata_token_index (token
);
6743 mono_metadata_decode_row (t
, idx
- 1, cols
, MONO_EXP_TYPE_SIZE
);
6745 impl
= cols
[MONO_EXP_TYPE_IMPLEMENTATION
];
6746 if ((impl
& MONO_IMPLEMENTATION_MASK
) == MONO_IMPLEMENTATION_FILE
) {
6747 loaded_image
= mono_assembly_load_module (image
->assembly
, impl
>> MONO_IMPLEMENTATION_BITS
);
6750 class = mono_class_from_name (loaded_image
, name_space
, name
);
6752 return return_nested_in (class, nested
);
6754 } else if ((impl
& MONO_IMPLEMENTATION_MASK
) == MONO_IMPLEMENTATION_ASSEMBLYREF
) {
6755 guint32 assembly_idx
;
6757 assembly_idx
= impl
>> MONO_IMPLEMENTATION_BITS
;
6759 mono_assembly_load_reference (image
, assembly_idx
- 1);
6760 g_assert (image
->references
[assembly_idx
- 1]);
6761 if (image
->references
[assembly_idx
- 1] == (gpointer
)-1)
6764 /* FIXME: Cycle detection */
6765 return mono_class_from_name (image
->references
[assembly_idx
- 1]->image
, name_space
, name
);
6767 g_error ("not yet implemented");
6771 token
= MONO_TOKEN_TYPE_DEF
| token
;
6773 class = mono_class_get (image
, token
);
6775 return return_nested_in (class, nested
);
6779 /*FIXME test for interfaces with variant generic arguments*/
6781 mono_class_is_subclass_of (MonoClass
*klass
, MonoClass
*klassc
,
6782 gboolean check_interfaces
)
6784 g_assert (klassc
->idepth
> 0);
6785 if (check_interfaces
&& MONO_CLASS_IS_INTERFACE (klassc
) && !MONO_CLASS_IS_INTERFACE (klass
)) {
6786 if (MONO_CLASS_IMPLEMENTS_INTERFACE (klass
, klassc
->interface_id
))
6788 } else if (check_interfaces
&& MONO_CLASS_IS_INTERFACE (klassc
) && MONO_CLASS_IS_INTERFACE (klass
)) {
6791 for (i
= 0; i
< klass
->interface_count
; i
++) {
6792 MonoClass
*ic
= klass
->interfaces
[i
];
6797 if (!MONO_CLASS_IS_INTERFACE (klass
) && mono_class_has_parent (klass
, klassc
))
6802 * MS.NET thinks interfaces are a subclass of Object, so we think it as
6805 if (klassc
== mono_defaults
.object_class
)
6812 mono_class_has_variant_generic_params (MonoClass
*klass
)
6815 MonoGenericContainer
*container
;
6817 if (!klass
->generic_class
)
6820 container
= klass
->generic_class
->container_class
->generic_container
;
6822 for (i
= 0; i
< container
->type_argc
; ++i
)
6823 if (mono_generic_container_get_param_info (container
, i
)->flags
& (MONO_GEN_PARAM_VARIANT
|MONO_GEN_PARAM_COVARIANT
))
6830 * @container the generic container from the GTD
6831 * @klass: the class to be assigned to
6832 * @oklass: the source class
6834 * Both klass and oklass must be instances of the same generic interface.
6835 * Return true if @klass can be assigned to a @klass variable
6838 mono_class_is_variant_compatible (MonoClass
*klass
, MonoClass
*oklass
)
6841 MonoType
**klass_argv
, **oklass_argv
;
6842 MonoClass
*klass_gtd
= mono_class_get_generic_type_definition (klass
);
6843 MonoGenericContainer
*container
= klass_gtd
->generic_container
;
6845 /*Viable candidates are instances of the same generic interface*/
6846 if (mono_class_get_generic_type_definition (oklass
) != klass_gtd
)
6849 klass_argv
= &klass
->generic_class
->context
.class_inst
->type_argv
[0];
6850 oklass_argv
= &oklass
->generic_class
->context
.class_inst
->type_argv
[0];
6852 for (j
= 0; j
< container
->type_argc
; ++j
) {
6853 MonoClass
*param1_class
= mono_class_from_mono_type (klass_argv
[j
]);
6854 MonoClass
*param2_class
= mono_class_from_mono_type (oklass_argv
[j
]);
6856 if (param1_class
->valuetype
!= param2_class
->valuetype
)
6860 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
6861 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
6863 if (param1_class
!= param2_class
) {
6864 if (mono_generic_container_get_param_info (container
, j
)->flags
& MONO_GEN_PARAM_VARIANT
) {
6865 if (!mono_class_is_assignable_from (param1_class
, param2_class
))
6867 } else if (mono_generic_container_get_param_info (container
, j
)->flags
& MONO_GEN_PARAM_COVARIANT
) {
6868 if (!mono_class_is_assignable_from (param2_class
, param1_class
))
6878 * mono_class_is_assignable_from:
6879 * @klass: the class to be assigned to
6880 * @oklass: the source class
6882 * Return: true if an instance of object oklass can be assigned to an
6883 * instance of object @klass
6886 mono_class_is_assignable_from (MonoClass
*klass
, MonoClass
*oklass
)
6889 mono_class_init (klass
);
6891 if (!oklass
->inited
)
6892 mono_class_init (oklass
);
6894 if ((klass
->byval_arg
.type
== MONO_TYPE_VAR
) || (klass
->byval_arg
.type
== MONO_TYPE_MVAR
))
6895 return klass
== oklass
;
6897 if (MONO_CLASS_IS_INTERFACE (klass
)) {
6898 if ((oklass
->byval_arg
.type
== MONO_TYPE_VAR
) || (oklass
->byval_arg
.type
== MONO_TYPE_MVAR
))
6901 /* interface_offsets might not be set for dynamic classes */
6902 if (oklass
->ref_info_handle
&& !oklass
->interface_bitmap
)
6904 * oklass might be a generic type parameter but they have
6905 * interface_offsets set.
6907 return mono_reflection_call_is_assignable_to (oklass
, klass
);
6908 if (!oklass
->interface_bitmap
)
6909 /* Happens with generic instances of not-yet created dynamic types */
6911 if (MONO_CLASS_IMPLEMENTS_INTERFACE (oklass
, klass
->interface_id
))
6914 if (mono_class_has_variant_generic_params (klass
)) {
6917 mono_class_setup_interfaces (oklass
, &error
);
6918 if (!mono_error_ok (&error
)) {
6919 mono_error_cleanup (&error
);
6923 /*klass is a generic variant interface, We need to extract from oklass a list of ifaces which are viable candidates.*/
6924 for (i
= 0; i
< oklass
->interface_offsets_count
; ++i
) {
6925 MonoClass
*iface
= oklass
->interfaces_packed
[i
];
6927 if (mono_class_is_variant_compatible (klass
, iface
))
6932 } else if (klass
->delegate
) {
6933 if (mono_class_has_variant_generic_params (klass
) && mono_class_is_variant_compatible (klass
, oklass
))
6935 }else if (klass
->rank
) {
6936 MonoClass
*eclass
, *eoclass
;
6938 if (oklass
->rank
!= klass
->rank
)
6941 /* vectors vs. one dimensional arrays */
6942 if (oklass
->byval_arg
.type
!= klass
->byval_arg
.type
)
6945 eclass
= klass
->cast_class
;
6946 eoclass
= oklass
->cast_class
;
6949 * a is b does not imply a[] is b[] when a is a valuetype, and
6950 * b is a reference type.
6953 if (eoclass
->valuetype
) {
6954 if ((eclass
== mono_defaults
.enum_class
) ||
6955 (eclass
== mono_defaults
.enum_class
->parent
) ||
6956 (eclass
== mono_defaults
.object_class
))
6960 return mono_class_is_assignable_from (klass
->cast_class
, oklass
->cast_class
);
6961 } else if (mono_class_is_nullable (klass
)) {
6962 if (mono_class_is_nullable (oklass
))
6963 return mono_class_is_assignable_from (klass
->cast_class
, oklass
->cast_class
);
6965 return mono_class_is_assignable_from (klass
->cast_class
, oklass
);
6966 } else if (klass
== mono_defaults
.object_class
)
6969 return mono_class_has_parent (oklass
, klass
);
6972 /*Check if @oklass is variant compatible with @klass.*/
6974 mono_class_is_variant_compatible_slow (MonoClass
*klass
, MonoClass
*oklass
)
6977 MonoType
**klass_argv
, **oklass_argv
;
6978 MonoClass
*klass_gtd
= mono_class_get_generic_type_definition (klass
);
6979 MonoGenericContainer
*container
= klass_gtd
->generic_container
;
6981 /*Viable candidates are instances of the same generic interface*/
6982 if (mono_class_get_generic_type_definition (oklass
) != klass_gtd
)
6985 klass_argv
= &klass
->generic_class
->context
.class_inst
->type_argv
[0];
6986 oklass_argv
= &oklass
->generic_class
->context
.class_inst
->type_argv
[0];
6988 for (j
= 0; j
< container
->type_argc
; ++j
) {
6989 MonoClass
*param1_class
= mono_class_from_mono_type (klass_argv
[j
]);
6990 MonoClass
*param2_class
= mono_class_from_mono_type (oklass_argv
[j
]);
6992 if (param1_class
->valuetype
!= param2_class
->valuetype
)
6996 * The _VARIANT and _COVARIANT constants should read _COVARIANT and
6997 * _CONTRAVARIANT, but they are in a public header so we can't fix it.
6999 if (param1_class
!= param2_class
) {
7000 if (mono_generic_container_get_param_info (container
, j
)->flags
& MONO_GEN_PARAM_VARIANT
) {
7001 if (!mono_class_is_assignable_from_slow (param1_class
, param2_class
))
7003 } else if (mono_generic_container_get_param_info (container
, j
)->flags
& MONO_GEN_PARAM_COVARIANT
) {
7004 if (!mono_class_is_assignable_from_slow (param2_class
, param1_class
))
7012 /*Check if @candidate implements the interface @target*/
7014 mono_class_implement_interface_slow (MonoClass
*target
, MonoClass
*candidate
)
7018 gboolean is_variant
= mono_class_has_variant_generic_params (target
);
7020 if (is_variant
&& MONO_CLASS_IS_INTERFACE (candidate
)) {
7021 if (mono_class_is_variant_compatible_slow (target
, candidate
))
7026 if (candidate
== target
)
7029 /*A TypeBuilder can have more interfaces on tb->interfaces than on candidate->interfaces*/
7030 if (candidate
->image
->dynamic
&& !candidate
->wastypebuilder
) {
7031 MonoReflectionTypeBuilder
*tb
= mono_class_get_ref_info (candidate
);
7033 if (tb
&& tb
->interfaces
) {
7034 for (j
= mono_array_length (tb
->interfaces
) - 1; j
>= 0; --j
) {
7035 MonoReflectionType
*iface
= mono_array_get (tb
->interfaces
, MonoReflectionType
*, j
);
7036 MonoClass
*iface_class
= mono_class_from_mono_type (iface
->type
);
7037 if (iface_class
== target
)
7039 if (is_variant
&& mono_class_is_variant_compatible_slow (target
, iface_class
))
7041 if (mono_class_implement_interface_slow (target
, iface_class
))
7046 /*setup_interfaces don't mono_class_init anything*/
7047 mono_class_setup_interfaces (candidate
, &error
);
7048 if (!mono_error_ok (&error
)) {
7049 mono_error_cleanup (&error
);
7053 for (i
= 0; i
< candidate
->interface_count
; ++i
) {
7054 if (candidate
->interfaces
[i
] == target
)
7057 if (is_variant
&& mono_class_is_variant_compatible_slow (target
, candidate
->interfaces
[i
]))
7060 if (mono_class_implement_interface_slow (target
, candidate
->interfaces
[i
]))
7064 candidate
= candidate
->parent
;
7065 } while (candidate
);
7071 * Check if @oklass can be assigned to @klass.
7072 * This function does the same as mono_class_is_assignable_from but is safe to be used from mono_class_init context.
7075 mono_class_is_assignable_from_slow (MonoClass
*target
, MonoClass
*candidate
)
7077 if (candidate
== target
)
7079 if (target
== mono_defaults
.object_class
)
7082 /*setup_supertypes don't mono_class_init anything */
7083 mono_class_setup_supertypes (candidate
);
7084 mono_class_setup_supertypes (target
);
7086 if (mono_class_has_parent (candidate
, target
))
7089 /*If target is not an interface there is no need to check them.*/
7090 if (MONO_CLASS_IS_INTERFACE (target
))
7091 return mono_class_implement_interface_slow (target
, candidate
);
7093 if (target
->delegate
&& mono_class_has_variant_generic_params (target
))
7094 return mono_class_is_variant_compatible (target
, candidate
);
7096 /*FIXME properly handle nullables and arrays */
7102 * mono_class_get_cctor:
7103 * @klass: A MonoClass pointer
7105 * Returns: the static constructor of @klass if it exists, NULL otherwise.
7108 mono_class_get_cctor (MonoClass
*klass
)
7110 MonoCachedClassInfo cached_info
;
7112 if (klass
->image
->dynamic
) {
7114 * has_cctor is not set for these classes because mono_class_init () is
7117 return mono_class_get_method_from_name_flags (klass
, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME
);
7120 if (!klass
->has_cctor
)
7123 if (mono_class_get_cached_class_info (klass
, &cached_info
))
7124 return mono_get_method (klass
->image
, cached_info
.cctor_token
, klass
);
7126 if (klass
->generic_class
&& !klass
->methods
)
7127 return mono_class_get_inflated_method (klass
, mono_class_get_cctor (klass
->generic_class
->container_class
));
7129 return mono_class_get_method_from_name_flags (klass
, ".cctor", -1, METHOD_ATTRIBUTE_SPECIAL_NAME
);
7133 * mono_class_get_finalizer:
7134 * @klass: The MonoClass pointer
7136 * Returns: the finalizer method of @klass if it exists, NULL otherwise.
7139 mono_class_get_finalizer (MonoClass
*klass
)
7141 MonoCachedClassInfo cached_info
;
7144 mono_class_init (klass
);
7145 if (!klass
->has_finalize
)
7148 if (mono_class_get_cached_class_info (klass
, &cached_info
))
7149 return mono_get_method (cached_info
.finalize_image
, cached_info
.finalize_token
, NULL
);
7151 mono_class_setup_vtable (klass
);
7152 return klass
->vtable
[finalize_slot
];
7157 * mono_class_needs_cctor_run:
7158 * @klass: the MonoClass pointer
7159 * @caller: a MonoMethod describing the caller
7161 * Determines whenever the class has a static constructor and whenever it
7162 * needs to be called when executing CALLER.
7165 mono_class_needs_cctor_run (MonoClass
*klass
, MonoMethod
*caller
)
7169 method
= mono_class_get_cctor (klass
);
7171 return (method
== caller
) ? FALSE
: TRUE
;
7177 * mono_class_array_element_size:
7180 * Returns: the number of bytes an element of type @klass
7181 * uses when stored into an array.
7184 mono_class_array_element_size (MonoClass
*klass
)
7186 MonoType
*type
= &klass
->byval_arg
;
7189 switch (type
->type
) {
7192 case MONO_TYPE_BOOLEAN
:
7196 case MONO_TYPE_CHAR
:
7205 case MONO_TYPE_CLASS
:
7206 case MONO_TYPE_STRING
:
7207 case MONO_TYPE_OBJECT
:
7208 case MONO_TYPE_SZARRAY
:
7209 case MONO_TYPE_ARRAY
:
7211 case MONO_TYPE_MVAR
:
7212 return sizeof (gpointer
);
7217 case MONO_TYPE_VALUETYPE
:
7218 if (type
->data
.klass
->enumtype
) {
7219 type
= mono_class_enum_basetype (type
->data
.klass
);
7220 klass
= klass
->element_class
;
7223 return mono_class_instance_size (klass
) - sizeof (MonoObject
);
7224 case MONO_TYPE_GENERICINST
:
7225 type
= &type
->data
.generic_class
->container_class
->byval_arg
;
7228 case MONO_TYPE_VOID
:
7232 g_error ("unknown type 0x%02x in mono_class_array_element_size", type
->type
);
7238 * mono_array_element_size:
7239 * @ac: pointer to a #MonoArrayClass
7241 * Returns: the size of single array element.
7244 mono_array_element_size (MonoClass
*ac
)
7246 g_assert (ac
->rank
);
7247 return ac
->sizes
.element_size
;
7251 mono_ldtoken (MonoImage
*image
, guint32 token
, MonoClass
**handle_class
,
7252 MonoGenericContext
*context
)
7254 if (image
->dynamic
) {
7255 MonoClass
*tmp_handle_class
;
7256 gpointer obj
= mono_lookup_dynamic_token_class (image
, token
, TRUE
, &tmp_handle_class
, context
);
7258 g_assert (tmp_handle_class
);
7260 *handle_class
= tmp_handle_class
;
7262 if (tmp_handle_class
== mono_defaults
.typehandle_class
)
7263 return &((MonoClass
*)obj
)->byval_arg
;
7268 switch (token
& 0xff000000) {
7269 case MONO_TOKEN_TYPE_DEF
:
7270 case MONO_TOKEN_TYPE_REF
:
7271 case MONO_TOKEN_TYPE_SPEC
: {
7274 *handle_class
= mono_defaults
.typehandle_class
;
7275 type
= mono_type_get_full (image
, token
, context
);
7278 mono_class_init (mono_class_from_mono_type (type
));
7279 /* We return a MonoType* as handle */
7282 case MONO_TOKEN_FIELD_DEF
: {
7284 guint32 type
= mono_metadata_typedef_from_field (image
, mono_metadata_token_index (token
));
7288 *handle_class
= mono_defaults
.fieldhandle_class
;
7289 class = mono_class_get_full (image
, MONO_TOKEN_TYPE_DEF
| type
, context
);
7292 mono_class_init (class);
7293 return mono_class_get_field (class, token
);
7295 case MONO_TOKEN_METHOD_DEF
:
7296 case MONO_TOKEN_METHOD_SPEC
: {
7298 meth
= mono_get_method_full (image
, token
, NULL
, context
);
7300 *handle_class
= mono_defaults
.methodhandle_class
;
7303 case MONO_TOKEN_MEMBER_REF
: {
7304 guint32 cols
[MONO_MEMBERREF_SIZE
];
7306 mono_metadata_decode_row (&image
->tables
[MONO_TABLE_MEMBERREF
], mono_metadata_token_index (token
) - 1, cols
, MONO_MEMBERREF_SIZE
);
7307 sig
= mono_metadata_blob_heap (image
, cols
[MONO_MEMBERREF_SIGNATURE
]);
7308 mono_metadata_decode_blob_size (sig
, &sig
);
7309 if (*sig
== 0x6) { /* it's a field */
7311 MonoClassField
*field
;
7312 field
= mono_field_from_token (image
, token
, &klass
, context
);
7314 *handle_class
= mono_defaults
.fieldhandle_class
;
7318 meth
= mono_get_method_full (image
, token
, NULL
, context
);
7320 *handle_class
= mono_defaults
.methodhandle_class
;
7325 g_warning ("Unknown token 0x%08x in ldtoken", token
);
7332 * This function might need to call runtime functions so it can't be part
7333 * of the metadata library.
7335 static MonoLookupDynamicToken lookup_dynamic
= NULL
;
7338 mono_install_lookup_dynamic_token (MonoLookupDynamicToken func
)
7340 lookup_dynamic
= func
;
7344 mono_lookup_dynamic_token (MonoImage
*image
, guint32 token
, MonoGenericContext
*context
)
7346 MonoClass
*handle_class
;
7348 return lookup_dynamic (image
, token
, TRUE
, &handle_class
, context
);
7352 mono_lookup_dynamic_token_class (MonoImage
*image
, guint32 token
, gboolean valid_token
, MonoClass
**handle_class
, MonoGenericContext
*context
)
7354 return lookup_dynamic (image
, token
, valid_token
, handle_class
, context
);
7357 static MonoGetCachedClassInfo get_cached_class_info
= NULL
;
7360 mono_install_get_cached_class_info (MonoGetCachedClassInfo func
)
7362 get_cached_class_info
= func
;
7366 mono_class_get_cached_class_info (MonoClass
*klass
, MonoCachedClassInfo
*res
)
7368 if (!get_cached_class_info
)
7371 return get_cached_class_info (klass
, res
);
7375 mono_install_get_class_from_name (MonoGetClassFromName func
)
7377 get_class_from_name
= func
;
7381 mono_class_get_image (MonoClass
*klass
)
7383 return klass
->image
;
7387 * mono_class_get_element_class:
7388 * @klass: the MonoClass to act on
7390 * Returns: the element class of an array or an enumeration.
7393 mono_class_get_element_class (MonoClass
*klass
)
7395 return klass
->element_class
;
7399 * mono_class_is_valuetype:
7400 * @klass: the MonoClass to act on
7402 * Returns: true if the MonoClass represents a ValueType.
7405 mono_class_is_valuetype (MonoClass
*klass
)
7407 return klass
->valuetype
;
7411 * mono_class_is_enum:
7412 * @klass: the MonoClass to act on
7414 * Returns: true if the MonoClass represents an enumeration.
7417 mono_class_is_enum (MonoClass
*klass
)
7419 return klass
->enumtype
;
7423 * mono_class_enum_basetype:
7424 * @klass: the MonoClass to act on
7426 * Returns: the underlying type representation for an enumeration.
7429 mono_class_enum_basetype (MonoClass
*klass
)
7431 if (klass
->element_class
== klass
)
7432 /* SRE or broken types */
7435 return &klass
->element_class
->byval_arg
;
7439 * mono_class_get_parent
7440 * @klass: the MonoClass to act on
7442 * Returns: the parent class for this class.
7445 mono_class_get_parent (MonoClass
*klass
)
7447 return klass
->parent
;
7451 * mono_class_get_nesting_type;
7452 * @klass: the MonoClass to act on
7454 * Returns: the container type where this type is nested or NULL if this type is not a nested type.
7457 mono_class_get_nesting_type (MonoClass
*klass
)
7459 return klass
->nested_in
;
7463 * mono_class_get_rank:
7464 * @klass: the MonoClass to act on
7466 * Returns: the rank for the array (the number of dimensions).
7469 mono_class_get_rank (MonoClass
*klass
)
7475 * mono_class_get_flags:
7476 * @klass: the MonoClass to act on
7478 * The type flags from the TypeDef table from the metadata.
7479 * see the TYPE_ATTRIBUTE_* definitions on tabledefs.h for the
7482 * Returns: the flags from the TypeDef table.
7485 mono_class_get_flags (MonoClass
*klass
)
7487 return klass
->flags
;
7491 * mono_class_get_name
7492 * @klass: the MonoClass to act on
7494 * Returns: the name of the class.
7497 mono_class_get_name (MonoClass
*klass
)
7503 * mono_class_get_namespace:
7504 * @klass: the MonoClass to act on
7506 * Returns: the namespace of the class.
7509 mono_class_get_namespace (MonoClass
*klass
)
7511 return klass
->name_space
;
7515 * mono_class_get_type:
7516 * @klass: the MonoClass to act on
7518 * This method returns the internal Type representation for the class.
7520 * Returns: the MonoType from the class.
7523 mono_class_get_type (MonoClass
*klass
)
7525 return &klass
->byval_arg
;
7529 * mono_class_get_type_token
7530 * @klass: the MonoClass to act on
7532 * This method returns type token for the class.
7534 * Returns: the type token for the class.
7537 mono_class_get_type_token (MonoClass
*klass
)
7539 return klass
->type_token
;
7543 * mono_class_get_byref_type:
7544 * @klass: the MonoClass to act on
7549 mono_class_get_byref_type (MonoClass
*klass
)
7551 return &klass
->this_arg
;
7555 * mono_class_num_fields:
7556 * @klass: the MonoClass to act on
7558 * Returns: the number of static and instance fields in the class.
7561 mono_class_num_fields (MonoClass
*klass
)
7563 return klass
->field
.count
;
7567 * mono_class_num_methods:
7568 * @klass: the MonoClass to act on
7570 * Returns: the number of methods in the class.
7573 mono_class_num_methods (MonoClass
*klass
)
7575 return klass
->method
.count
;
7579 * mono_class_num_properties
7580 * @klass: the MonoClass to act on
7582 * Returns: the number of properties in the class.
7585 mono_class_num_properties (MonoClass
*klass
)
7587 mono_class_setup_properties (klass
);
7589 return klass
->ext
->property
.count
;
7593 * mono_class_num_events:
7594 * @klass: the MonoClass to act on
7596 * Returns: the number of events in the class.
7599 mono_class_num_events (MonoClass
*klass
)
7601 mono_class_setup_events (klass
);
7603 return klass
->ext
->event
.count
;
7607 * mono_class_get_fields:
7608 * @klass: the MonoClass to act on
7610 * This routine is an iterator routine for retrieving the fields in a class.
7612 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7613 * iterate over all of the elements. When no more values are
7614 * available, the return value is NULL.
7616 * Returns: a @MonoClassField* on each iteration, or NULL when no more fields are available.
7619 mono_class_get_fields (MonoClass
* klass
, gpointer
*iter
)
7621 MonoClassField
* field
;
7625 mono_class_setup_fields_locking (klass
);
7626 if (klass
->exception_type
)
7628 /* start from the first */
7629 if (klass
->field
.count
) {
7630 return *iter
= &klass
->fields
[0];
7638 if (field
< &klass
->fields
[klass
->field
.count
]) {
7639 return *iter
= field
;
7645 * mono_class_get_methods
7646 * @klass: the MonoClass to act on
7648 * This routine is an iterator routine for retrieving the fields in a class.
7650 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7651 * iterate over all of the elements. When no more values are
7652 * available, the return value is NULL.
7654 * Returns: a MonoMethod on each iteration or NULL when no more methods are available.
7657 mono_class_get_methods (MonoClass
* klass
, gpointer
*iter
)
7659 MonoMethod
** method
;
7663 mono_class_init (klass
);
7665 mono_class_setup_methods (klass
);
7668 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
7669 * FIXME we should better report this error to the caller
7671 if (!klass
->methods
)
7673 /* start from the first */
7674 if (klass
->method
.count
) {
7675 *iter
= &klass
->methods
[0];
7676 return klass
->methods
[0];
7684 if (method
< &klass
->methods
[klass
->method
.count
]) {
7692 * mono_class_get_virtual_methods:
7694 * Iterate over the virtual methods of KLASS.
7696 * LOCKING: Assumes the loader lock is held (because of the klass->methods check).
7699 mono_class_get_virtual_methods (MonoClass
* klass
, gpointer
*iter
)
7701 MonoMethod
** method
;
7704 if (klass
->methods
|| !MONO_CLASS_HAS_STATIC_METADATA (klass
) || mono_debug_using_mono_debugger ()) {
7706 mono_class_setup_methods (klass
);
7708 * We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
7709 * FIXME we should better report this error to the caller
7711 if (!klass
->methods
)
7713 /* start from the first */
7714 method
= &klass
->methods
[0];
7719 while (method
< &klass
->methods
[klass
->method
.count
]) {
7720 if (((*method
)->flags
& METHOD_ATTRIBUTE_VIRTUAL
))
7724 if (method
< &klass
->methods
[klass
->method
.count
]) {
7731 /* Search directly in metadata to avoid calling setup_methods () */
7732 MonoMethod
*res
= NULL
;
7738 start_index
= GPOINTER_TO_UINT (*iter
);
7741 for (i
= start_index
; i
< klass
->method
.count
; ++i
) {
7744 /* class->method.first points into the methodptr table */
7745 flags
= mono_metadata_decode_table_row_col (klass
->image
, MONO_TABLE_METHOD
, klass
->method
.first
+ i
, MONO_METHOD_FLAGS
);
7747 if (flags
& METHOD_ATTRIBUTE_VIRTUAL
)
7751 if (i
< klass
->method
.count
) {
7752 res
= mono_get_method (klass
->image
, MONO_TOKEN_METHOD_DEF
| (klass
->method
.first
+ i
+ 1), klass
);
7753 /* Add 1 here so the if (*iter) check fails */
7754 *iter
= GUINT_TO_POINTER (i
+ 1);
7763 * mono_class_get_properties:
7764 * @klass: the MonoClass to act on
7766 * This routine is an iterator routine for retrieving the properties in a class.
7768 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7769 * iterate over all of the elements. When no more values are
7770 * available, the return value is NULL.
7772 * Returns: a @MonoProperty* on each invocation, or NULL when no more are available.
7775 mono_class_get_properties (MonoClass
* klass
, gpointer
*iter
)
7777 MonoProperty
* property
;
7781 mono_class_init (klass
);
7783 mono_class_setup_properties (klass
);
7784 /* start from the first */
7785 if (klass
->ext
->property
.count
) {
7786 return *iter
= &klass
->ext
->properties
[0];
7794 if (property
< &klass
->ext
->properties
[klass
->ext
->property
.count
]) {
7795 return *iter
= property
;
7801 * mono_class_get_events:
7802 * @klass: the MonoClass to act on
7804 * This routine is an iterator routine for retrieving the properties in a class.
7806 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7807 * iterate over all of the elements. When no more values are
7808 * available, the return value is NULL.
7810 * Returns: a @MonoEvent* on each invocation, or NULL when no more are available.
7813 mono_class_get_events (MonoClass
* klass
, gpointer
*iter
)
7819 mono_class_init (klass
);
7821 mono_class_setup_events (klass
);
7822 /* start from the first */
7823 if (klass
->ext
->event
.count
) {
7824 return *iter
= &klass
->ext
->events
[0];
7832 if (event
< &klass
->ext
->events
[klass
->ext
->event
.count
]) {
7833 return *iter
= event
;
7839 * mono_class_get_interfaces
7840 * @klass: the MonoClass to act on
7842 * This routine is an iterator routine for retrieving the interfaces implemented by this class.
7844 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7845 * iterate over all of the elements. When no more values are
7846 * available, the return value is NULL.
7848 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
7851 mono_class_get_interfaces (MonoClass
* klass
, gpointer
*iter
)
7859 mono_class_init (klass
);
7860 if (!klass
->interfaces_inited
) {
7861 mono_class_setup_interfaces (klass
, &error
);
7862 if (!mono_error_ok (&error
)) {
7863 mono_error_cleanup (&error
);
7867 /* start from the first */
7868 if (klass
->interface_count
) {
7869 *iter
= &klass
->interfaces
[0];
7870 return klass
->interfaces
[0];
7878 if (iface
< &klass
->interfaces
[klass
->interface_count
]) {
7886 * mono_class_get_nested_types
7887 * @klass: the MonoClass to act on
7889 * This routine is an iterator routine for retrieving the nested types of a class.
7890 * This works only if @klass is non-generic, or a generic type definition.
7892 * You must pass a gpointer that points to zero and is treated as an opaque handle to
7893 * iterate over all of the elements. When no more values are
7894 * available, the return value is NULL.
7896 * Returns: a @Monoclass* on each invocation, or NULL when no more are available.
7899 mono_class_get_nested_types (MonoClass
* klass
, gpointer
*iter
)
7907 mono_class_init (klass
);
7908 if (!klass
->nested_classes_inited
) {
7909 if (!klass
->type_token
)
7910 klass
->nested_classes_inited
= TRUE
;
7911 mono_loader_lock ();
7912 if (!klass
->nested_classes_inited
) {
7913 i
= mono_metadata_nesting_typedef (klass
->image
, klass
->type_token
, 1);
7916 guint32 cols
[MONO_NESTED_CLASS_SIZE
];
7917 mono_metadata_decode_row (&klass
->image
->tables
[MONO_TABLE_NESTEDCLASS
], i
- 1, cols
, MONO_NESTED_CLASS_SIZE
);
7918 nclass
= mono_class_create_from_typedef (klass
->image
, MONO_TOKEN_TYPE_DEF
| cols
[MONO_NESTED_CLASS_NESTED
]);
7921 mono_class_alloc_ext (klass
);
7922 klass
->ext
->nested_classes
= g_list_prepend_image (klass
->image
, klass
->ext
->nested_classes
, nclass
);
7924 i
= mono_metadata_nesting_typedef (klass
->image
, klass
->type_token
, i
+ 1);
7927 mono_memory_barrier ();
7928 klass
->nested_classes_inited
= TRUE
;
7929 mono_loader_unlock ();
7933 /* start from the first */
7934 if (klass
->ext
&& klass
->ext
->nested_classes
) {
7935 *iter
= klass
->ext
->nested_classes
;
7936 return klass
->ext
->nested_classes
->data
;
7938 /* no nested types */
7952 * mono_field_get_name:
7953 * @field: the MonoClassField to act on
7955 * Returns: the name of the field.
7958 mono_field_get_name (MonoClassField
*field
)
7964 * mono_field_get_type:
7965 * @field: the MonoClassField to act on
7967 * Returns: MonoType of the field.
7970 mono_field_get_type (MonoClassField
*field
)
7976 * mono_field_get_parent:
7977 * @field: the MonoClassField to act on
7979 * Returns: MonoClass where the field was defined.
7982 mono_field_get_parent (MonoClassField
*field
)
7984 return field
->parent
;
7988 * mono_field_get_flags;
7989 * @field: the MonoClassField to act on
7991 * The metadata flags for a field are encoded using the
7992 * FIELD_ATTRIBUTE_* constants. See the tabledefs.h file for details.
7994 * Returns: the flags for the field.
7997 mono_field_get_flags (MonoClassField
*field
)
7999 return field
->type
->attrs
;
8003 * mono_field_get_offset;
8004 * @field: the MonoClassField to act on
8006 * Returns: the field offset.
8009 mono_field_get_offset (MonoClassField
*field
)
8011 return field
->offset
;
8015 mono_field_get_rva (MonoClassField
*field
)
8019 MonoClass
*klass
= field
->parent
;
8021 g_assert (field
->type
->attrs
& FIELD_ATTRIBUTE_HAS_FIELD_RVA
);
8023 if (!klass
->ext
|| !klass
->ext
->field_def_values
) {
8024 mono_loader_lock ();
8025 mono_class_alloc_ext (klass
);
8026 if (!klass
->ext
->field_def_values
)
8027 klass
->ext
->field_def_values
= mono_image_alloc0 (klass
->image
, sizeof (MonoFieldDefaultValue
) * klass
->field
.count
);
8028 mono_loader_unlock ();
8031 field_index
= mono_field_get_index (field
);
8033 if (!klass
->ext
->field_def_values
[field_index
].data
&& !klass
->image
->dynamic
) {
8034 mono_metadata_field_info (field
->parent
->image
, klass
->field
.first
+ field_index
, NULL
, &rva
, NULL
);
8036 g_warning ("field %s in %s should have RVA data, but hasn't", mono_field_get_name (field
), field
->parent
->name
);
8037 klass
->ext
->field_def_values
[field_index
].data
= mono_image_rva_map (field
->parent
->image
, rva
);
8040 return klass
->ext
->field_def_values
[field_index
].data
;
8044 * mono_field_get_data;
8045 * @field: the MonoClassField to act on
8047 * Returns: pointer to the metadata constant value or to the field
8048 * data if it has an RVA flag.
8051 mono_field_get_data (MonoClassField
*field
)
8053 if (field
->type
->attrs
& FIELD_ATTRIBUTE_HAS_DEFAULT
) {
8054 MonoTypeEnum def_type
;
8056 return mono_class_get_field_default_value (field
, &def_type
);
8057 } else if (field
->type
->attrs
& FIELD_ATTRIBUTE_HAS_FIELD_RVA
) {
8058 return mono_field_get_rva (field
);
8065 * mono_property_get_name:
8066 * @prop: the MonoProperty to act on
8068 * Returns: the name of the property
8071 mono_property_get_name (MonoProperty
*prop
)
8077 * mono_property_get_set_method
8078 * @prop: the MonoProperty to act on.
8080 * Returns: the setter method of the property (A MonoMethod)
8083 mono_property_get_set_method (MonoProperty
*prop
)
8089 * mono_property_get_get_method
8090 * @prop: the MonoProperty to act on.
8092 * Returns: the setter method of the property (A MonoMethod)
8095 mono_property_get_get_method (MonoProperty
*prop
)
8101 * mono_property_get_parent:
8102 * @prop: the MonoProperty to act on.
8104 * Returns: the MonoClass where the property was defined.
8107 mono_property_get_parent (MonoProperty
*prop
)
8109 return prop
->parent
;
8113 * mono_property_get_flags:
8114 * @prop: the MonoProperty to act on.
8116 * The metadata flags for a property are encoded using the
8117 * PROPERTY_ATTRIBUTE_* constants. See the tabledefs.h file for details.
8119 * Returns: the flags for the property.
8122 mono_property_get_flags (MonoProperty
*prop
)
8128 * mono_event_get_name:
8129 * @event: the MonoEvent to act on
8131 * Returns: the name of the event.
8134 mono_event_get_name (MonoEvent
*event
)
8140 * mono_event_get_add_method:
8141 * @event: The MonoEvent to act on.
8143 * Returns: the @add' method for the event (a MonoMethod).
8146 mono_event_get_add_method (MonoEvent
*event
)
8152 * mono_event_get_remove_method:
8153 * @event: The MonoEvent to act on.
8155 * Returns: the @remove method for the event (a MonoMethod).
8158 mono_event_get_remove_method (MonoEvent
*event
)
8160 return event
->remove
;
8164 * mono_event_get_raise_method:
8165 * @event: The MonoEvent to act on.
8167 * Returns: the @raise method for the event (a MonoMethod).
8170 mono_event_get_raise_method (MonoEvent
*event
)
8172 return event
->raise
;
8176 * mono_event_get_parent:
8177 * @event: the MonoEvent to act on.
8179 * Returns: the MonoClass where the event is defined.
8182 mono_event_get_parent (MonoEvent
*event
)
8184 return event
->parent
;
8188 * mono_event_get_flags
8189 * @event: the MonoEvent to act on.
8191 * The metadata flags for an event are encoded using the
8192 * EVENT_* constants. See the tabledefs.h file for details.
8194 * Returns: the flags for the event.
8197 mono_event_get_flags (MonoEvent
*event
)
8199 return event
->attrs
;
8203 * mono_class_get_method_from_name:
8204 * @klass: where to look for the method
8205 * @name_space: name of the method
8206 * @param_count: number of parameters. -1 for any number.
8208 * Obtains a MonoMethod with a given name and number of parameters.
8209 * It only works if there are no multiple signatures for any given method name.
8212 mono_class_get_method_from_name (MonoClass
*klass
, const char *name
, int param_count
)
8214 return mono_class_get_method_from_name_flags (klass
, name
, param_count
, 0);
8218 find_method_in_metadata (MonoClass
*klass
, const char *name
, int param_count
, int flags
)
8220 MonoMethod
*res
= NULL
;
8223 /* Search directly in the metadata to avoid calling setup_methods () */
8224 for (i
= 0; i
< klass
->method
.count
; ++i
) {
8225 guint32 cols
[MONO_METHOD_SIZE
];
8228 /* class->method.first points into the methodptr table */
8229 mono_metadata_decode_table_row (klass
->image
, MONO_TABLE_METHOD
, klass
->method
.first
+ i
, cols
, MONO_METHOD_SIZE
);
8231 if (!strcmp (mono_metadata_string_heap (klass
->image
, cols
[MONO_METHOD_NAME
]), name
)) {
8232 method
= mono_get_method (klass
->image
, MONO_TOKEN_METHOD_DEF
| (klass
->method
.first
+ i
+ 1), klass
);
8233 if ((param_count
== -1) || mono_method_signature (method
)->param_count
== param_count
) {
8244 * mono_class_get_method_from_name_flags:
8245 * @klass: where to look for the method
8246 * @name_space: name of the method
8247 * @param_count: number of parameters. -1 for any number.
8248 * @flags: flags which must be set in the method
8250 * Obtains a MonoMethod with a given name and number of parameters.
8251 * It only works if there are no multiple signatures for any given method name.
8254 mono_class_get_method_from_name_flags (MonoClass
*klass
, const char *name
, int param_count
, int flags
)
8256 MonoMethod
*res
= NULL
;
8259 mono_class_init (klass
);
8261 if (klass
->generic_class
&& !klass
->methods
) {
8262 res
= mono_class_get_method_from_name_flags (klass
->generic_class
->container_class
, name
, param_count
, flags
);
8264 res
= mono_class_inflate_generic_method_full (res
, klass
, mono_class_get_context (klass
));
8268 if (klass
->methods
|| !MONO_CLASS_HAS_STATIC_METADATA (klass
)) {
8269 mono_class_setup_methods (klass
);
8271 We can't fail lookup of methods otherwise the runtime will burst in flames on all sort of places.
8272 See mono/tests/array_load_exception.il
8273 FIXME we should better report this error to the caller
8275 if (!klass
->methods
)
8277 for (i
= 0; i
< klass
->method
.count
; ++i
) {
8278 MonoMethod
*method
= klass
->methods
[i
];
8280 if (method
->name
[0] == name
[0] &&
8281 !strcmp (name
, method
->name
) &&
8282 (param_count
== -1 || mono_method_signature (method
)->param_count
== param_count
) &&
8283 ((method
->flags
& flags
) == flags
)) {
8290 res
= find_method_in_metadata (klass
, name
, param_count
, flags
);
8297 * mono_class_set_failure:
8298 * @klass: class in which the failure was detected
8299 * @ex_type: the kind of exception/error to be thrown (later)
8300 * @ex_data: exception data (specific to each type of exception/error)
8302 * Keep a detected failure informations in the class for later processing.
8303 * Note that only the first failure is kept.
8305 * LOCKING: Acquires the loader lock.
8308 mono_class_set_failure (MonoClass
*klass
, guint32 ex_type
, void *ex_data
)
8310 if (klass
->exception_type
)
8313 mono_loader_lock ();
8314 klass
->exception_type
= ex_type
;
8316 mono_image_property_insert (klass
->image
, klass
, MONO_CLASS_PROP_EXCEPTION_DATA
, ex_data
);
8317 mono_loader_unlock ();
8323 * mono_class_get_exception_data:
8325 * Return the exception_data property of KLASS.
8327 * LOCKING: Acquires the loader lock.
8330 mono_class_get_exception_data (MonoClass
*klass
)
8332 return mono_image_property_lookup (klass
->image
, klass
, MONO_CLASS_PROP_EXCEPTION_DATA
);
8336 * mono_classes_init:
8338 * Initialize the resources used by this module.
8341 mono_classes_init (void)
8343 mono_counters_register ("Inflated methods size",
8344 MONO_COUNTER_GENERICS
| MONO_COUNTER_INT
, &inflated_methods_size
);
8345 mono_counters_register ("Inflated classes",
8346 MONO_COUNTER_GENERICS
| MONO_COUNTER_INT
, &inflated_classes
);
8347 mono_counters_register ("Inflated classes size",
8348 MONO_COUNTER_GENERICS
| MONO_COUNTER_INT
, &inflated_classes_size
);
8349 mono_counters_register ("MonoClass size",
8350 MONO_COUNTER_METADATA
| MONO_COUNTER_INT
, &classes_size
);
8351 mono_counters_register ("MonoClassExt size",
8352 MONO_COUNTER_METADATA
| MONO_COUNTER_INT
, &class_ext_size
);
8356 * mono_classes_cleanup:
8358 * Free the resources used by this module.
8361 mono_classes_cleanup (void)
8363 if (global_interface_bitset
)
8364 mono_bitset_free (global_interface_bitset
);
8368 * mono_class_get_exception_for_failure:
8369 * @klass: class in which the failure was detected
8371 * Return a constructed MonoException than the caller can then throw
8372 * using mono_raise_exception - or NULL if no failure is present (or
8373 * doesn't result in an exception).
8376 mono_class_get_exception_for_failure (MonoClass
*klass
)
8378 gpointer exception_data
= mono_class_get_exception_data (klass
);
8380 switch (klass
->exception_type
) {
8381 case MONO_EXCEPTION_SECURITY_INHERITANCEDEMAND
: {
8382 MonoDomain
*domain
= mono_domain_get ();
8383 MonoSecurityManager
* secman
= mono_security_manager_get_methods ();
8384 MonoMethod
*method
= exception_data
;
8385 guint32 error
= (method
) ? MONO_METADATA_INHERITANCEDEMAND_METHOD
: MONO_METADATA_INHERITANCEDEMAND_CLASS
;
8386 MonoObject
*exc
= NULL
;
8390 args
[1] = mono_assembly_get_object (domain
, mono_image_get_assembly (klass
->image
));
8391 args
[2] = mono_type_get_object (domain
, &klass
->byval_arg
);
8392 args
[3] = (method
) ? mono_method_get_object (domain
, method
, NULL
) : NULL
;
8394 mono_runtime_invoke (secman
->inheritsecurityexception
, NULL
, args
, &exc
);
8395 return (MonoException
*) exc
;
8397 case MONO_EXCEPTION_TYPE_LOAD
: {
8400 char *str
= mono_type_get_full_name (klass
);
8401 char *astr
= klass
->image
->assembly
? mono_stringify_assembly_name (&klass
->image
->assembly
->aname
): NULL
;
8402 name
= mono_string_new (mono_domain_get (), str
);
8404 ex
= mono_get_exception_type_load (name
, astr
);
8408 case MONO_EXCEPTION_MISSING_METHOD
: {
8409 char *class_name
= exception_data
;
8410 char *assembly_name
= class_name
+ strlen (class_name
) + 1;
8412 return mono_get_exception_missing_method (class_name
, assembly_name
);
8414 case MONO_EXCEPTION_MISSING_FIELD
: {
8415 char *class_name
= exception_data
;
8416 char *member_name
= class_name
+ strlen (class_name
) + 1;
8418 return mono_get_exception_missing_field (class_name
, member_name
);
8420 case MONO_EXCEPTION_FILE_NOT_FOUND
: {
8421 char *msg_format
= exception_data
;
8422 char *assembly_name
= msg_format
+ strlen (msg_format
) + 1;
8423 char *msg
= g_strdup_printf (msg_format
, assembly_name
);
8426 ex
= mono_get_exception_file_not_found2 (msg
, mono_string_new (mono_domain_get (), assembly_name
));
8432 case MONO_EXCEPTION_BAD_IMAGE
: {
8433 return mono_get_exception_bad_image_format (exception_data
);
8436 MonoLoaderError
*error
;
8439 error
= mono_loader_get_last_error ();
8441 ex
= mono_loader_error_prepare_exception (error
);
8445 /* TODO - handle other class related failures */
8452 is_nesting_type (MonoClass
*outer_klass
, MonoClass
*inner_klass
)
8454 outer_klass
= mono_class_get_generic_type_definition (outer_klass
);
8455 inner_klass
= mono_class_get_generic_type_definition (inner_klass
);
8457 if (outer_klass
== inner_klass
)
8459 inner_klass
= inner_klass
->nested_in
;
8460 } while (inner_klass
);
8465 mono_class_get_generic_type_definition (MonoClass
*klass
)
8467 return klass
->generic_class
? klass
->generic_class
->container_class
: klass
;
8471 * Check if @klass is a subtype of @parent ignoring generic instantiations.
8473 * Generic instantiations are ignored for all super types of @klass.
8475 * Visibility checks ignoring generic instantiations.
8478 mono_class_has_parent_and_ignore_generics (MonoClass
*klass
, MonoClass
*parent
)
8481 klass
= mono_class_get_generic_type_definition (klass
);
8482 parent
= mono_class_get_generic_type_definition (parent
);
8484 for (i
= 0; i
< klass
->idepth
; ++i
) {
8485 if (parent
== mono_class_get_generic_type_definition (klass
->supertypes
[i
]))
8491 * Subtype can only access parent members with family protection if the site object
8492 * is subclass of Subtype. For example:
8493 * class A { protected int x; }
8495 * void valid_access () {
8499 * void invalid_access () {
8506 is_valid_family_access (MonoClass
*access_klass
, MonoClass
*member_klass
, MonoClass
*context_klass
)
8508 if (!mono_class_has_parent_and_ignore_generics (access_klass
, member_klass
))
8511 if (context_klass
== NULL
)
8513 /*if access_klass is not member_klass context_klass must be type compat*/
8514 if (access_klass
!= member_klass
&& !mono_class_has_parent_and_ignore_generics (context_klass
, access_klass
))
8520 can_access_internals (MonoAssembly
*accessing
, MonoAssembly
* accessed
)
8523 if (accessing
== accessed
)
8525 if (!accessed
|| !accessing
)
8528 /* extra safety under CoreCLR - the runtime does not verify the strongname signatures
8529 * anywhere so untrusted friends are not safe to access platform's code internals */
8530 if (mono_security_get_mode () == MONO_SECURITY_MODE_CORE_CLR
) {
8531 if (!mono_security_core_clr_can_access_internals (accessing
->image
, accessed
->image
))
8535 mono_assembly_load_friends (accessed
);
8536 for (tmp
= accessed
->friend_assembly_names
; tmp
; tmp
= tmp
->next
) {
8537 MonoAssemblyName
*friend = tmp
->data
;
8538 /* Be conservative with checks */
8541 if (strcmp (accessing
->aname
.name
, friend->name
))
8543 if (friend->public_key_token
[0]) {
8544 if (!accessing
->aname
.public_key_token
[0])
8546 if (!mono_public_tokens_are_equal (friend->public_key_token
, accessing
->aname
.public_key_token
))
8555 * If klass is a generic type or if it is derived from a generic type, return the
8556 * MonoClass of the generic definition
8557 * Returns NULL if not found
8560 get_generic_definition_class (MonoClass
*klass
)
8563 if (klass
->generic_class
&& klass
->generic_class
->container_class
)
8564 return klass
->generic_class
->container_class
;
8565 klass
= klass
->parent
;
8571 can_access_instantiation (MonoClass
*access_klass
, MonoGenericInst
*ginst
)
8574 for (i
= 0; i
< ginst
->type_argc
; ++i
) {
8575 MonoType
*type
= ginst
->type_argv
[i
];
8576 switch (type
->type
) {
8577 case MONO_TYPE_SZARRAY
:
8578 if (!can_access_type (access_klass
, type
->data
.klass
))
8581 case MONO_TYPE_ARRAY
:
8582 if (!can_access_type (access_klass
, type
->data
.array
->eklass
))
8586 if (!can_access_type (access_klass
, mono_class_from_mono_type (type
->data
.type
)))
8589 case MONO_TYPE_CLASS
:
8590 case MONO_TYPE_VALUETYPE
:
8591 case MONO_TYPE_GENERICINST
:
8592 if (!can_access_type (access_klass
, mono_class_from_mono_type (type
)))
8600 can_access_type (MonoClass
*access_klass
, MonoClass
*member_klass
)
8604 if (access_klass
->element_class
&& !access_klass
->enumtype
)
8605 access_klass
= access_klass
->element_class
;
8607 if (member_klass
->element_class
&& !member_klass
->enumtype
)
8608 member_klass
= member_klass
->element_class
;
8610 access_level
= member_klass
->flags
& TYPE_ATTRIBUTE_VISIBILITY_MASK
;
8612 if (member_klass
->byval_arg
.type
== MONO_TYPE_VAR
|| member_klass
->byval_arg
.type
== MONO_TYPE_MVAR
)
8615 if (member_klass
->generic_class
&& !can_access_instantiation (access_klass
, member_klass
->generic_class
->context
.class_inst
))
8618 if (is_nesting_type (access_klass
, member_klass
) || (access_klass
->nested_in
&& is_nesting_type (access_klass
->nested_in
, member_klass
)))
8621 if (member_klass
->nested_in
&& !can_access_type (access_klass
, member_klass
->nested_in
))
8624 /*Non nested type with nested visibility. We just fail it.*/
8625 if (access_level
>= TYPE_ATTRIBUTE_NESTED_PRIVATE
&& access_level
<= TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM
&& member_klass
->nested_in
== NULL
)
8628 switch (access_level
) {
8629 case TYPE_ATTRIBUTE_NOT_PUBLIC
:
8630 return can_access_internals (access_klass
->image
->assembly
, member_klass
->image
->assembly
);
8632 case TYPE_ATTRIBUTE_PUBLIC
:
8635 case TYPE_ATTRIBUTE_NESTED_PUBLIC
:
8638 case TYPE_ATTRIBUTE_NESTED_PRIVATE
:
8639 return is_nesting_type (member_klass
, access_klass
);
8641 case TYPE_ATTRIBUTE_NESTED_FAMILY
:
8642 return mono_class_has_parent_and_ignore_generics (access_klass
, member_klass
->nested_in
);
8644 case TYPE_ATTRIBUTE_NESTED_ASSEMBLY
:
8645 return can_access_internals (access_klass
->image
->assembly
, member_klass
->image
->assembly
);
8647 case TYPE_ATTRIBUTE_NESTED_FAM_AND_ASSEM
:
8648 return can_access_internals (access_klass
->image
->assembly
, member_klass
->nested_in
->image
->assembly
) &&
8649 mono_class_has_parent_and_ignore_generics (access_klass
, member_klass
->nested_in
);
8651 case TYPE_ATTRIBUTE_NESTED_FAM_OR_ASSEM
:
8652 return can_access_internals (access_klass
->image
->assembly
, member_klass
->nested_in
->image
->assembly
) ||
8653 mono_class_has_parent_and_ignore_generics (access_klass
, member_klass
->nested_in
);
8658 /* FIXME: check visibility of type, too */
8660 can_access_member (MonoClass
*access_klass
, MonoClass
*member_klass
, MonoClass
* context_klass
, int access_level
)
8662 MonoClass
*member_generic_def
;
8663 if (((access_klass
->generic_class
&& access_klass
->generic_class
->container_class
) ||
8664 access_klass
->generic_container
) &&
8665 (member_generic_def
= get_generic_definition_class (member_klass
))) {
8666 MonoClass
*access_container
;
8668 if (access_klass
->generic_container
)
8669 access_container
= access_klass
;
8671 access_container
= access_klass
->generic_class
->container_class
;
8673 if (can_access_member (access_container
, member_generic_def
, context_klass
, access_level
))
8677 /* Partition I 8.5.3.2 */
8678 /* the access level values are the same for fields and methods */
8679 switch (access_level
) {
8680 case FIELD_ATTRIBUTE_COMPILER_CONTROLLED
:
8681 /* same compilation unit */
8682 return access_klass
->image
== member_klass
->image
;
8683 case FIELD_ATTRIBUTE_PRIVATE
:
8684 return access_klass
== member_klass
;
8685 case FIELD_ATTRIBUTE_FAM_AND_ASSEM
:
8686 if (is_valid_family_access (access_klass
, member_klass
, context_klass
) &&
8687 can_access_internals (access_klass
->image
->assembly
, member_klass
->image
->assembly
))
8690 case FIELD_ATTRIBUTE_ASSEMBLY
:
8691 return can_access_internals (access_klass
->image
->assembly
, member_klass
->image
->assembly
);
8692 case FIELD_ATTRIBUTE_FAMILY
:
8693 if (is_valid_family_access (access_klass
, member_klass
, context_klass
))
8696 case FIELD_ATTRIBUTE_FAM_OR_ASSEM
:
8697 if (is_valid_family_access (access_klass
, member_klass
, context_klass
))
8699 return can_access_internals (access_klass
->image
->assembly
, member_klass
->image
->assembly
);
8700 case FIELD_ATTRIBUTE_PUBLIC
:
8707 mono_method_can_access_field (MonoMethod
*method
, MonoClassField
*field
)
8709 /* FIXME: check all overlapping fields */
8710 int can
= can_access_member (method
->klass
, field
->parent
, NULL
, field
->type
->attrs
& FIELD_ATTRIBUTE_FIELD_ACCESS_MASK
);
8712 MonoClass
*nested
= method
->klass
->nested_in
;
8714 can
= can_access_member (nested
, field
->parent
, NULL
, field
->type
->attrs
& FIELD_ATTRIBUTE_FIELD_ACCESS_MASK
);
8717 nested
= nested
->nested_in
;
8724 mono_method_can_access_method (MonoMethod
*method
, MonoMethod
*called
)
8726 int can
= can_access_member (method
->klass
, called
->klass
, NULL
, called
->flags
& METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK
);
8728 MonoClass
*nested
= method
->klass
->nested_in
;
8730 can
= can_access_member (nested
, called
->klass
, NULL
, called
->flags
& METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK
);
8733 nested
= nested
->nested_in
;
8738 * with generics calls to explicit interface implementations can be expressed
8739 * directly: the method is private, but we must allow it. This may be opening
8740 * a hole or the generics code should handle this differently.
8741 * Maybe just ensure the interface type is public.
8743 if ((called
->flags
& METHOD_ATTRIBUTE_VIRTUAL
) && (called
->flags
& METHOD_ATTRIBUTE_FINAL
))
8749 * mono_method_can_access_method_full:
8750 * @method: The caller method
8751 * @called: The called method
8752 * @context_klass: The static type on stack of the owner @called object used
8754 * This function must be used with instance calls, as they have more strict family accessibility.
8755 * It can be used with static methods, but context_klass should be NULL.
8757 * Returns: TRUE if caller have proper visibility and acessibility to @called
8760 mono_method_can_access_method_full (MonoMethod
*method
, MonoMethod
*called
, MonoClass
*context_klass
)
8762 MonoClass
*access_class
= method
->klass
;
8763 MonoClass
*member_class
= called
->klass
;
8764 int can
= can_access_member (access_class
, member_class
, context_klass
, called
->flags
& METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK
);
8766 MonoClass
*nested
= access_class
->nested_in
;
8768 can
= can_access_member (nested
, member_class
, context_klass
, called
->flags
& METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK
);
8771 nested
= nested
->nested_in
;
8778 if (!can_access_type (access_class
, member_class
) && (!access_class
->nested_in
|| !can_access_type (access_class
->nested_in
, member_class
)))
8781 if (called
->is_inflated
) {
8782 MonoMethodInflated
* infl
= (MonoMethodInflated
*)called
;
8783 if (infl
->context
.method_inst
&& !can_access_instantiation (access_class
, infl
->context
.method_inst
))
8792 * mono_method_can_access_field_full:
8793 * @method: The caller method
8794 * @field: The accessed field
8795 * @context_klass: The static type on stack of the owner @field object used
8797 * This function must be used with instance fields, as they have more strict family accessibility.
8798 * It can be used with static fields, but context_klass should be NULL.
8800 * Returns: TRUE if caller have proper visibility and acessibility to @field
8803 mono_method_can_access_field_full (MonoMethod
*method
, MonoClassField
*field
, MonoClass
*context_klass
)
8805 MonoClass
*access_class
= method
->klass
;
8806 MonoClass
*member_class
= field
->parent
;
8807 /* FIXME: check all overlapping fields */
8808 int can
= can_access_member (access_class
, member_class
, context_klass
, field
->type
->attrs
& FIELD_ATTRIBUTE_FIELD_ACCESS_MASK
);
8810 MonoClass
*nested
= access_class
->nested_in
;
8812 can
= can_access_member (nested
, member_class
, context_klass
, field
->type
->attrs
& FIELD_ATTRIBUTE_FIELD_ACCESS_MASK
);
8815 nested
= nested
->nested_in
;
8822 if (!can_access_type (access_class
, member_class
) && (!access_class
->nested_in
|| !can_access_type (access_class
->nested_in
, member_class
)))
8828 * mono_type_is_valid_enum_basetype:
8829 * @type: The MonoType to check
8831 * Returns: TRUE if the type can be used as the basetype of an enum
8833 gboolean
mono_type_is_valid_enum_basetype (MonoType
* type
) {
8834 switch (type
->type
) {
8837 case MONO_TYPE_BOOLEAN
:
8840 case MONO_TYPE_CHAR
:
8853 * mono_class_is_valid_enum:
8854 * @klass: An enum class to be validated
8856 * This method verify the required properties an enum should have.
8858 * Returns: TRUE if the informed enum class is valid
8860 * FIXME: TypeBuilder enums are allowed to implement interfaces, but since they cannot have methods, only empty interfaces are possible
8861 * FIXME: enum types are not allowed to have a cctor, but mono_reflection_create_runtime_class sets has_cctor to 1 for all types
8862 * FIXME: TypeBuilder enums can have any kind of static fields, but the spec is very explicit about that (P II 14.3)
8864 gboolean
mono_class_is_valid_enum (MonoClass
*klass
) {
8865 MonoClassField
* field
;
8866 gpointer iter
= NULL
;
8867 gboolean found_base_field
= FALSE
;
8869 g_assert (klass
->enumtype
);
8870 /* we cannot test against mono_defaults.enum_class, or mcs won't be able to compile the System namespace*/
8871 if (!klass
->parent
|| strcmp (klass
->parent
->name
, "Enum") || strcmp (klass
->parent
->name_space
, "System") ) {
8875 if ((klass
->flags
& TYPE_ATTRIBUTE_LAYOUT_MASK
) != TYPE_ATTRIBUTE_AUTO_LAYOUT
)
8878 while ((field
= mono_class_get_fields (klass
, &iter
))) {
8879 if (!(field
->type
->attrs
& FIELD_ATTRIBUTE_STATIC
)) {
8880 if (found_base_field
)
8882 found_base_field
= TRUE
;
8883 if (!mono_type_is_valid_enum_basetype (field
->type
))
8888 if (!found_base_field
)
8891 if (klass
->method
.count
> 0)
8898 mono_generic_class_is_generic_type_definition (MonoGenericClass
*gklass
)
8900 return gklass
->context
.class_inst
== gklass
->container_class
->generic_container
->context
.class_inst
;
8904 * mono_class_setup_interface_id:
8906 * Initializes MonoClass::interface_id if required.
8908 * LOCKING: Acquires the loader lock.
8911 mono_class_setup_interface_id (MonoClass
*class)
8913 mono_loader_lock ();
8914 if (MONO_CLASS_IS_INTERFACE (class) && !class->interface_id
)
8915 class->interface_id
= mono_get_unique_iid (class);
8916 mono_loader_unlock ();
8920 * mono_class_alloc_ext:
8922 * Allocate klass->ext if not already done.
8923 * LOCKING: Assumes the loader lock is held.
8926 mono_class_alloc_ext (MonoClass
*klass
)
8929 if (klass
->generic_class
) {
8930 klass
->ext
= g_new0 (MonoClassExt
, 1);
8932 klass
->ext
= mono_image_alloc0 (klass
->image
, sizeof (MonoClassExt
));
8934 class_ext_size
+= sizeof (MonoClassExt
);
8939 * mono_class_setup_interfaces:
8941 * Initialize class->interfaces/interfaces_count.
8942 * LOCKING: Acquires the loader lock.
8943 * This function can fail the type.
8946 mono_class_setup_interfaces (MonoClass
*klass
, MonoError
*error
)
8950 mono_error_init (error
);
8952 if (klass
->interfaces_inited
)
8955 mono_loader_lock ();
8957 if (klass
->interfaces_inited
) {
8958 mono_loader_unlock ();
8962 if (klass
->rank
== 1 && klass
->byval_arg
.type
!= MONO_TYPE_ARRAY
&& mono_defaults
.generic_ilist_class
) {
8965 /* generic IList, ICollection, IEnumerable */
8966 klass
->interface_count
= 1;
8967 klass
->interfaces
= mono_image_alloc0 (klass
->image
, sizeof (MonoClass
*) * klass
->interface_count
);
8969 args
[0] = &klass
->element_class
->byval_arg
;
8970 klass
->interfaces
[0] = mono_class_bind_generic_parameters (
8971 mono_defaults
.generic_ilist_class
, 1, args
, FALSE
);
8972 } else if (klass
->generic_class
) {
8973 MonoClass
*gklass
= klass
->generic_class
->container_class
;
8975 klass
->interface_count
= gklass
->interface_count
;
8976 klass
->interfaces
= g_new0 (MonoClass
*, klass
->interface_count
);
8977 for (i
= 0; i
< klass
->interface_count
; i
++) {
8978 klass
->interfaces
[i
] = mono_class_inflate_generic_class_checked (gklass
->interfaces
[i
], mono_generic_class_get_context (klass
->generic_class
), error
);
8979 if (!mono_error_ok (error
)) {
8980 mono_class_set_failure (klass
, MONO_EXCEPTION_TYPE_LOAD
, g_strdup ("Could not setup the interfaces"));
8981 g_free (klass
->interfaces
);
8982 klass
->interfaces
= NULL
;
8988 mono_memory_barrier ();
8990 klass
->interfaces_inited
= TRUE
;
8992 mono_loader_unlock ();