2 * metadata.c: Routines for accessing the metadata
5 * Miguel de Icaza (miguel@ximian.com)
6 * Paolo Molaro (lupus@ximian.com)
8 * (C) 2001-2002 Ximian, Inc.
20 #include "tabledefs.h"
21 #include "mono-endian.h"
23 #include "tokentype.h"
24 #include "metadata-internals.h"
25 #include "class-internals.h"
28 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
29 const char *ptr, const char **rptr);
31 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
32 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
33 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
34 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
35 gboolean signature_only);
36 static void free_generic_inst (MonoGenericInst *ginst);
37 static void free_generic_class (MonoGenericClass *ginst);
38 static void free_inflated_method (MonoMethodInflated *method);
41 * This enumeration is used to describe the data types in the metadata
52 /* Index into Blob heap */
55 /* Index into String heap */
61 /* Pointer into a table */
64 /* HasConstant:Parent pointer (Param, Field or Property) */
67 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
70 /* CustomAttributeType encoded index */
73 /* HasDeclSecurity index: TypeDef Method or Assembly */
76 /* Implementation coded index: File, Export AssemblyRef */
79 /* HasFieldMarshal coded index: Field or Param table */
82 /* MemberForwardedIndex: Field or Method */
85 /* TypeDefOrRef coded index: typedef, typeref, typespec */
88 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
91 /* MethodDefOrRef coded index: Method or Member Ref table */
94 /* HasSemantic coded index: Event or Property */
97 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
101 const static unsigned char TableSchemas [] = {
102 #define ASSEMBLY_SCHEMA_OFFSET 0
103 MONO_MT_UINT32, /* "HashId" }, */
104 MONO_MT_UINT16, /* "Major" }, */
105 MONO_MT_UINT16, /* "Minor" }, */
106 MONO_MT_UINT16, /* "BuildNumber" }, */
107 MONO_MT_UINT16, /* "RevisionNumber" }, */
108 MONO_MT_UINT32, /* "Flags" }, */
109 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
110 MONO_MT_STRING_IDX, /* "Name" }, */
111 MONO_MT_STRING_IDX, /* "Culture" }, */
114 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
115 MONO_MT_UINT32, /* "OSPlatformID" }, */
116 MONO_MT_UINT32, /* "OSMajor" }, */
117 MONO_MT_UINT32, /* "OSMinor" }, */
120 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
121 MONO_MT_UINT32, /* "Processor" }, */
124 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
125 MONO_MT_UINT16, /* "Major" }, */
126 MONO_MT_UINT16, /* "Minor" }, */
127 MONO_MT_UINT16, /* "Build" }, */
128 MONO_MT_UINT16, /* "Revision" }, */
129 MONO_MT_UINT32, /* "Flags" }, */
130 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
131 MONO_MT_STRING_IDX, /* "Name" }, */
132 MONO_MT_STRING_IDX, /* "Culture" }, */
133 MONO_MT_BLOB_IDX, /* "HashValue" }, */
136 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
137 MONO_MT_UINT32, /* "OSPlatformID" }, */
138 MONO_MT_UINT32, /* "OSMajorVersion" }, */
139 MONO_MT_UINT32, /* "OSMinorVersion" }, */
140 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
143 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
144 MONO_MT_UINT32, /* "Processor" }, */
145 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
148 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
149 MONO_MT_UINT16, /* "PackingSize" }, */
150 MONO_MT_UINT32, /* "ClassSize" }, */
151 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
154 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
155 MONO_MT_UINT8, /* "Type" }, */
156 MONO_MT_UINT8, /* "PaddingZero" }, */
157 MONO_MT_CONST_IDX, /* "Parent" }, */
158 MONO_MT_BLOB_IDX, /* "Value" }, */
161 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
162 MONO_MT_HASCAT_IDX, /* "Parent" }, */
163 MONO_MT_CAT_IDX, /* "Type" }, */
164 MONO_MT_BLOB_IDX, /* "Value" }, */
167 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
168 MONO_MT_UINT16, /* "Action" }, */
169 MONO_MT_HASDEC_IDX, /* "Parent" }, */
170 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
173 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
174 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
175 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
178 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
179 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
180 MONO_MT_STRING_IDX, /* "Name" }, */
181 MONO_MT_TABLE_IDX, /* "EventType" }, TypeDef or TypeRef */
184 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
185 MONO_MT_TABLE_IDX, /* "Event" }, */
188 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
189 MONO_MT_UINT32, /* "Flags" }, */
190 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
191 MONO_MT_STRING_IDX, /* "TypeName" }, */
192 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
193 MONO_MT_IMPL_IDX, /* "Implementation" }, */
196 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
197 MONO_MT_UINT16, /* "Flags" }, */
198 MONO_MT_STRING_IDX, /* "Name" }, */
199 MONO_MT_BLOB_IDX, /* "Signature" }, */
202 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
203 MONO_MT_UINT32, /* "Offset" }, */
204 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
207 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
208 MONO_MT_HFM_IDX, /* "Parent" }, */
209 MONO_MT_BLOB_IDX, /* "NativeType" }, */
212 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
213 MONO_MT_UINT32, /* "RVA" }, */
214 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
217 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
218 MONO_MT_TABLE_IDX, /* "Field" }, */
221 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
222 MONO_MT_UINT32, /* "Flags" }, */
223 MONO_MT_STRING_IDX, /* "Name" }, */
224 MONO_MT_BLOB_IDX, /* "Value" }, */
227 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
228 MONO_MT_UINT16, /* "MappingFlag" }, */
229 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
230 MONO_MT_STRING_IDX, /* "ImportName" }, */
231 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
234 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
235 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
236 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
239 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
240 MONO_MT_UINT32, /* "Offset" }, */
241 MONO_MT_UINT32, /* "Flags" }, */
242 MONO_MT_STRING_IDX, /* "Name" }, */
243 MONO_MT_IMPL_IDX, /* "Implementation" }, */
246 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
247 MONO_MT_MRP_IDX, /* "Class" }, */
248 MONO_MT_STRING_IDX, /* "Name" }, */
249 MONO_MT_BLOB_IDX, /* "Signature" }, */
252 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
253 MONO_MT_UINT32, /* "RVA" }, */
254 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
255 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
256 MONO_MT_STRING_IDX, /* "Name" }, */
257 MONO_MT_BLOB_IDX, /* "Signature" }, */
258 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
261 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
262 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
263 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
264 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
267 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
268 MONO_MT_UINT16, /* "MethodSemantic" }, */
269 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
270 MONO_MT_HS_IDX, /* "Association" }, */
273 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
274 MONO_MT_TABLE_IDX, /* "Method" }, */
277 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
278 MONO_MT_UINT16, /* "Generation" }, */
279 MONO_MT_STRING_IDX, /* "Name" }, */
280 MONO_MT_GUID_IDX, /* "MVID" }, */
281 MONO_MT_GUID_IDX, /* "EncID" }, */
282 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
285 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
286 MONO_MT_STRING_IDX, /* "Name" }, */
289 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
290 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
291 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
294 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
295 MONO_MT_UINT16, /* "Flags" }, */
296 MONO_MT_UINT16, /* "Sequence" }, */
297 MONO_MT_STRING_IDX, /* "Name" }, */
300 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
301 MONO_MT_TABLE_IDX, /* "Param" }, */
304 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
305 MONO_MT_UINT16, /* "Flags" }, */
306 MONO_MT_STRING_IDX, /* "Name" }, */
307 MONO_MT_BLOB_IDX, /* "Type" }, */
310 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
311 MONO_MT_TABLE_IDX, /* "Property" }, */
314 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
315 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
316 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
319 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
320 MONO_MT_BLOB_IDX, /* "Signature" }, */
323 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
324 MONO_MT_UINT32, /* "Flags" }, */
325 MONO_MT_STRING_IDX, /* "Name" }, */
326 MONO_MT_STRING_IDX, /* "Namespace" }, */
327 MONO_MT_TDOR_IDX, /* "Extends" }, */
328 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
329 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
332 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
333 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
334 MONO_MT_STRING_IDX, /* "Name" }, */
335 MONO_MT_STRING_IDX, /* "Namespace" }, */
338 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
339 MONO_MT_BLOB_IDX, /* "Signature" }, */
342 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
343 MONO_MT_UINT16, /* "Number" }, */
344 MONO_MT_UINT16, /* "Flags" }, */
345 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
346 MONO_MT_STRING_IDX, /* "Name" }, */
349 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
350 MONO_MT_MDOR_IDX, /* "Method" }, */
351 MONO_MT_BLOB_IDX, /* "Signature" }, */
354 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
355 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
356 MONO_MT_TDOR_IDX, /* "Constraint" }, */
359 #define NULL_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
363 /* Must be the same order as MONO_TABLE_* */
364 const static unsigned char
365 table_description [] = {
366 MODULE_SCHEMA_OFFSET,
367 TYPEREF_SCHEMA_OFFSET,
368 TYPEDEF_SCHEMA_OFFSET,
369 FIELD_POINTER_SCHEMA_OFFSET,
371 METHOD_POINTER_SCHEMA_OFFSET,
372 METHOD_SCHEMA_OFFSET,
373 PARAM_POINTER_SCHEMA_OFFSET,
375 IFACEMAP_SCHEMA_OFFSET,
376 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
377 CONSTANT_SCHEMA_OFFSET,
378 CUSTOM_ATTR_SCHEMA_OFFSET,
379 FIELD_MARSHAL_SCHEMA_OFFSET,
380 DECL_SEC_SCHEMA_OFFSET,
381 CLASS_LAYOUT_SCHEMA_OFFSET,
382 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
383 STDALON_SIG_SCHEMA_OFFSET,
384 EVENTMAP_SCHEMA_OFFSET,
385 EVENT_POINTER_SCHEMA_OFFSET,
387 PROPERTY_MAP_SCHEMA_OFFSET,
388 PROPERTY_POINTER_SCHEMA_OFFSET,
389 PROPERTY_SCHEMA_OFFSET,
390 METHOD_SEMA_SCHEMA_OFFSET,
391 METHOD_IMPL_SCHEMA_OFFSET,
392 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
393 TYPESPEC_SCHEMA_OFFSET,
394 IMPLMAP_SCHEMA_OFFSET,
395 FIELD_RVA_SCHEMA_OFFSET,
398 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
399 ASSEMBLYPROC_SCHEMA_OFFSET,
400 ASSEMBLYOS_SCHEMA_OFFSET,
401 ASSEMBLYREF_SCHEMA_OFFSET,
402 ASSEMBLYREFPROC_SCHEMA_OFFSET,
403 ASSEMBLYREFOS_SCHEMA_OFFSET,
405 EXPORTED_TYPE_SCHEMA_OFFSET,
406 MANIFEST_SCHEMA_OFFSET,
407 NESTED_CLASS_SCHEMA_OFFSET,
408 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
409 METHOD_SPEC_SCHEMA_OFFSET,
410 GEN_CONSTRAINT_SCHEMA_OFFSET
413 #ifdef HAVE_ARRAY_ELEM_INIT
414 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
415 #define MSGSTRFIELD1(line) str##line
416 static const struct msgstr_t {
417 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
418 #include "mono/cil/tables.def"
421 #define TABLEDEF(a,b) b,
422 #include "mono/cil/tables.def"
425 static const gint16 tableidx [] = {
426 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
427 #include "mono/cil/tables.def"
432 #define TABLEDEF(a,b) b,
433 static const char* const
434 mono_tables_names [] = {
435 #include "mono/cil/tables.def"
441 /* Auxiliary structure used for caching inflated signatures */
443 MonoMethodSignature *sig;
444 MonoGenericContext context;
445 } MonoInflatedMethodSignature;
448 * mono_image_alloc_lock:
450 * Same as mono_image_alloc, but do the locking as well.
451 * LOCKING: Acquires the loader lock.
454 mono_image_alloc_lock (MonoImage *image, guint size)
459 res = mono_image_alloc (image, size);
460 mono_loader_unlock ();
466 * mono_image_alloc0_lock:
468 * Same as mono_image_alloc, but do the locking as well.
469 * LOCKING: Acquires the loader lock.
472 mono_image_alloc0_lock (MonoImage *image, guint size)
477 res = mono_image_alloc0 (image, size);
478 mono_loader_unlock ();
484 * mono_meta_table_name:
485 * @table: table index
487 * Returns the name of the given ECMA metadata logical format table
488 * as described in ECMA 335, Partition II, Section 22.
490 * Returns: the name for the @table index
493 mono_meta_table_name (int table)
495 if ((table < 0) || (table > MONO_TABLE_LAST))
498 #ifdef HAVE_ARRAY_ELEM_INIT
499 return (const char*)&tablestr + tableidx [table];
501 return mono_tables_names [table];
505 /* The guy who wrote the spec for this should not be allowed near a
508 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
509 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
510 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
511 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
512 inverse of this mapping.
515 #define rtsize(s,b) (((s) < (1 << (b)) ? 2 : 4))
516 #define idx_size(tableidx) (meta->tables [(tableidx)].rows < 65536 ? 2 : 4)
518 /* Reference: Partition II - 23.2.6 */
520 * mono_metadata_compute_size:
521 * @meta: metadata context
522 * @tableindex: metadata table number
523 * @result_bitfield: pointer to guint32 where to store additional info
525 * mono_metadata_compute_size() computes the lenght in bytes of a single
526 * row in a metadata table. The size of each column is encoded in the
527 * @result_bitfield return value along with the number of columns in the table.
528 * the resulting bitfield should be handed to the mono_metadata_table_size()
529 * and mono_metadata_table_count() macros.
530 * This is a Mono runtime internal only function.
533 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
535 guint32 bitfield = 0;
536 int size = 0, field_size = 0;
539 const unsigned char *description = TableSchemas + table_description [tableindex];
541 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
544 field_size = 4; break;
547 field_size = 2; break;
550 field_size = 1; break;
552 case MONO_MT_BLOB_IDX:
553 field_size = meta->idx_blob_wide ? 4 : 2; break;
555 case MONO_MT_STRING_IDX:
556 field_size = meta->idx_string_wide ? 4 : 2; break;
558 case MONO_MT_GUID_IDX:
559 field_size = meta->idx_guid_wide ? 4 : 2; break;
561 case MONO_MT_TABLE_IDX:
562 /* Uhm, a table index can point to other tables besides the current one
563 * so, it's not correct to use the rowcount of the current table to
564 * get the size for this column - lupus
566 switch (tableindex) {
567 case MONO_TABLE_ASSEMBLYREFOS:
569 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
570 case MONO_TABLE_ASSEMBLYPROCESSOR:
572 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
573 case MONO_TABLE_CLASSLAYOUT:
575 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
576 case MONO_TABLE_EVENTMAP:
577 g_assert (i == 0 || i == 1);
578 field_size = i ? idx_size (MONO_TABLE_EVENT):
579 idx_size(MONO_TABLE_TYPEDEF);
581 case MONO_TABLE_EVENT:
583 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows, meta->tables [MONO_TABLE_TYPEREF].rows);
584 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
585 /*This is a coded token for 3 tables, so takes 2 bits */
586 field_size = rtsize (n, 16 - MONO_TYPEDEFORREF_BITS);
588 case MONO_TABLE_EVENT_POINTER:
590 field_size = idx_size (MONO_TABLE_EVENT); break;
591 case MONO_TABLE_EXPORTEDTYPE:
593 /* the index is in another metadata file, so it must be 4 */
594 field_size = 4; break;
595 case MONO_TABLE_FIELDLAYOUT:
597 field_size = idx_size (MONO_TABLE_FIELD); break;
598 case MONO_TABLE_FIELDRVA:
600 field_size = idx_size (MONO_TABLE_FIELD); break;
601 case MONO_TABLE_FIELD_POINTER:
603 field_size = idx_size (MONO_TABLE_FIELD); break;
604 case MONO_TABLE_IMPLMAP:
606 field_size = idx_size (MONO_TABLE_MODULEREF); break;
607 case MONO_TABLE_INTERFACEIMPL:
609 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
610 case MONO_TABLE_METHOD:
612 field_size = idx_size (MONO_TABLE_PARAM); break;
613 case MONO_TABLE_METHODIMPL:
615 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
616 case MONO_TABLE_METHODSEMANTICS:
618 field_size = idx_size (MONO_TABLE_METHOD); break;
619 case MONO_TABLE_METHOD_POINTER:
621 field_size = idx_size (MONO_TABLE_METHOD); break;
622 case MONO_TABLE_NESTEDCLASS:
623 g_assert (i == 0 || i == 1);
624 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
625 case MONO_TABLE_PARAM_POINTER:
627 field_size = idx_size (MONO_TABLE_PARAM); break;
628 case MONO_TABLE_PROPERTYMAP:
629 g_assert (i == 0 || i == 1);
630 field_size = i ? idx_size (MONO_TABLE_PROPERTY):
631 idx_size(MONO_TABLE_TYPEDEF);
633 case MONO_TABLE_PROPERTY_POINTER:
635 field_size = idx_size (MONO_TABLE_PROPERTY); break;
636 case MONO_TABLE_TYPEDEF:
637 g_assert (i == 4 || i == 5);
638 field_size = i == 4 ? idx_size (MONO_TABLE_FIELD):
639 idx_size(MONO_TABLE_METHOD);
641 case MONO_TABLE_GENERICPARAM:
642 g_assert (i == 2 || i == 4 || i == 5);
644 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
645 /*This is a coded token for 2 tables, so takes 1 bit */
646 field_size = rtsize (n, 16 - MONO_TYPEORMETHOD_BITS);
648 field_size = idx_size (MONO_TABLE_TYPEDEF);
650 field_size = idx_size (MONO_TABLE_TYPEDEF);
653 case MONO_TABLE_GENERICPARAMCONSTRAINT:
655 field_size = idx_size (MONO_TABLE_GENERICPARAM);
659 g_assert_not_reached ();
664 * HasConstant: ParamDef, FieldDef, Property
666 case MONO_MT_CONST_IDX:
667 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
668 meta->tables [MONO_TABLE_FIELD].rows);
669 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
671 /* 2 bits to encode tag */
672 field_size = rtsize (n, 16-2);
676 * HasCustomAttribute: points to any table but
679 case MONO_MT_HASCAT_IDX:
681 * We believe that since the signature and
682 * permission are indexing the Blob heap,
683 * we should consider the blob size first
685 /* I'm not a believer - lupus
686 if (meta->idx_blob_wide){
691 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
692 meta->tables [MONO_TABLE_FIELD].rows);
693 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
694 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
695 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
696 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
697 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
698 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
699 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
700 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
701 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
702 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
703 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
704 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
705 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
706 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
707 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
708 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
709 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
711 /* 5 bits to encode */
712 field_size = rtsize (n, 16-5);
716 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
717 * MemberRef and String.
719 case MONO_MT_CAT_IDX:
720 /* String is a heap, if it is wide, we know the size */
722 if (meta->idx_string_wide){
727 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
728 meta->tables [MONO_TABLE_TYPEDEF].rows);
729 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
730 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
732 /* 3 bits to encode */
733 field_size = rtsize (n, 16-3);
737 * HasDeclSecurity: Typedef, MethodDef, Assembly
739 case MONO_MT_HASDEC_IDX:
740 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
741 meta->tables [MONO_TABLE_METHOD].rows);
742 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
744 /* 2 bits to encode */
745 field_size = rtsize (n, 16-2);
749 * Implementation: File, AssemblyRef, ExportedType
751 case MONO_MT_IMPL_IDX:
752 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
753 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
754 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
756 /* 2 bits to encode tag */
757 field_size = rtsize (n, 16-2);
761 * HasFieldMarshall: FieldDef, ParamDef
763 case MONO_MT_HFM_IDX:
764 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
765 meta->tables [MONO_TABLE_PARAM].rows);
767 /* 1 bit used to encode tag */
768 field_size = rtsize (n, 16-1);
772 * MemberForwarded: FieldDef, MethodDef
775 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
776 meta->tables [MONO_TABLE_METHOD].rows);
778 /* 1 bit used to encode tag */
779 field_size = rtsize (n, 16-1);
783 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
785 * It is TypeDef, _TypeRef_, TypeSpec, instead.
787 case MONO_MT_TDOR_IDX:
788 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
789 meta->tables [MONO_TABLE_TYPEREF].rows);
790 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
792 /* 2 bits to encode */
793 field_size = rtsize (n, 16-2);
797 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
799 case MONO_MT_MRP_IDX:
800 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
801 meta->tables [MONO_TABLE_TYPEREF].rows);
802 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
803 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
804 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
805 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
807 /* 3 bits to encode */
808 field_size = rtsize (n, 16 - 3);
812 * MethodDefOrRef: MethodDef, MemberRef
814 case MONO_MT_MDOR_IDX:
815 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
816 meta->tables [MONO_TABLE_MEMBERREF].rows);
818 /* 1 bit used to encode tag */
819 field_size = rtsize (n, 16-1);
823 * HasSemantics: Property, Event
826 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
827 meta->tables [MONO_TABLE_EVENT].rows);
829 /* 1 bit used to encode tag */
830 field_size = rtsize (n, 16-1);
834 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
837 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
838 meta->tables [MONO_TABLE_MODULEREF].rows);
839 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
840 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
842 /* 2 bits used to encode tag (ECMA spec claims 3) */
843 field_size = rtsize (n, 16 - 2);
848 * encode field size as follows (we just need to
855 bitfield |= (field_size-1) << shift;
858 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
861 *result_bitfield = (i << 24) | bitfield;
866 * mono_metadata_compute_table_bases:
867 * @meta: metadata context to compute table values
869 * Computes the table bases for the metadata structure.
870 * This is an internal function used by the image loader code.
873 mono_metadata_compute_table_bases (MonoImage *meta)
876 const char *base = meta->tables_base;
878 for (i = 0; i < MONO_TABLE_NUM; i++) {
879 MonoTableInfo *table = &meta->tables [i];
880 if (table->rows == 0)
883 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
885 base += table->rows * table->row_size;
890 * mono_metadata_locate:
891 * @meta: metadata context
892 * @table: table code.
893 * @idx: index of element to retrieve from @table.
895 * Returns: a pointer to the @idx element in the metadata table
896 * whose code is @table.
899 mono_metadata_locate (MonoImage *meta, int table, int idx)
901 /* idx == 0 refers always to NULL */
902 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, "");
904 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
908 * mono_metadata_locate_token:
909 * @meta: metadata context
910 * @token: metadata token
912 * Returns: a pointer to the data in the metadata represented by the
916 mono_metadata_locate_token (MonoImage *meta, guint32 token)
918 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
922 * mono_metadata_string_heap:
923 * @meta: metadata context
924 * @index: index into the string heap.
926 * Returns: an in-memory pointer to the @index in the string heap.
929 mono_metadata_string_heap (MonoImage *meta, guint32 index)
931 g_return_val_if_fail (index < meta->heap_strings.size, "");
932 return meta->heap_strings.data + index;
936 * mono_metadata_user_string:
937 * @meta: metadata context
938 * @index: index into the user string heap.
940 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
943 mono_metadata_user_string (MonoImage *meta, guint32 index)
945 g_return_val_if_fail (index < meta->heap_us.size, "");
946 return meta->heap_us.data + index;
950 * mono_metadata_blob_heap:
951 * @meta: metadata context
952 * @index: index into the blob.
954 * Returns: an in-memory pointer to the @index in the Blob heap.
957 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
959 g_return_val_if_fail (index < meta->heap_blob.size, "");
960 return meta->heap_blob.data + index;
964 * mono_metadata_guid_heap:
965 * @meta: metadata context
966 * @index: index into the guid heap.
968 * Returns: an in-memory pointer to the @index in the guid heap.
971 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
974 index *= 16; /* adjust for guid size and 1-based index */
975 g_return_val_if_fail (index < meta->heap_guid.size, "");
976 return meta->heap_guid.data + index;
979 static const unsigned char *
980 dword_align (const unsigned char *ptr)
982 #if SIZEOF_VOID_P == 8
983 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
985 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
990 * mono_metadata_decode_row:
991 * @t: table to extract information from.
992 * @idx: index in table.
993 * @res: array of @res_size cols to store the results in
995 * This decompresses the metadata element @idx in table @t
996 * into the guint32 @res array that has res_size elements
999 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
1001 guint32 bitfield = t->size_bitfield;
1002 int i, count = mono_metadata_table_count (bitfield);
1005 g_assert (idx < t->rows);
1006 data = t->base + idx * t->row_size;
1008 g_assert (res_size == count);
1010 for (i = 0; i < count; i++) {
1011 int n = mono_metadata_table_size (bitfield, i);
1015 res [i] = *data; break;
1017 res [i] = read16 (data); break;
1019 res [i] = read32 (data); break;
1021 g_assert_not_reached ();
1028 * mono_metadata_decode_row_col:
1029 * @t: table to extract information from.
1030 * @idx: index for row in table.
1031 * @col: column in the row.
1033 * This function returns the value of column @col from the @idx
1034 * row in the table @t.
1037 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
1039 guint32 bitfield = t->size_bitfield;
1041 register const char *data;
1044 g_assert (idx < t->rows);
1045 g_assert (col < mono_metadata_table_count (bitfield));
1046 data = t->base + idx * t->row_size;
1048 n = mono_metadata_table_size (bitfield, 0);
1049 for (i = 0; i < col; ++i) {
1051 n = mono_metadata_table_size (bitfield, i + 1);
1057 return read16 (data);
1059 return read32 (data);
1061 g_assert_not_reached ();
1067 * mono_metadata_decode_blob_size:
1068 * @ptr: pointer to a blob object
1069 * @rptr: the new position of the pointer
1071 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1073 * Returns: the size of the blob object
1076 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1078 const unsigned char *ptr = (const unsigned char *)xptr;
1081 if ((*ptr & 0x80) == 0){
1082 size = ptr [0] & 0x7f;
1084 } else if ((*ptr & 0x40) == 0){
1085 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1088 size = ((ptr [0] & 0x1f) << 24) +
1100 * mono_metadata_decode_value:
1101 * @ptr: pointer to decode from
1102 * @rptr: the new position of the pointer
1104 * This routine decompresses 32-bit values as specified in the "Blob and
1105 * Signature" section (22.2)
1107 * Returns: the decoded value
1110 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1112 const unsigned char *ptr = (const unsigned char *) _ptr;
1113 unsigned char b = *ptr;
1116 if ((b & 0x80) == 0){
1119 } else if ((b & 0x40) == 0){
1120 len = ((b & 0x3f) << 8 | ptr [1]);
1123 len = ((b & 0x1f) << 24) |
1136 * mono_metadata_decode_signed_value:
1137 * @ptr: pointer to decode from
1138 * @rptr: the new position of the pointer
1140 * This routine decompresses 32-bit signed values
1141 * (not specified in the spec)
1143 * Returns: the decoded value
1146 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1148 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1149 gint32 ival = uval >> 1;
1152 /* ival is a truncated 2's complement negative number. */
1154 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1157 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1158 return ival - 0x2000;
1159 if (ival < 0x10000000)
1160 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1161 return ival - 0x10000000;
1162 g_assert (ival < 0x20000000);
1163 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1164 return ival - 0x20000000;
1168 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1169 * using the *Ptr tables in uncompressed metadata, if they are available.
1171 * FIXME: The caller is not forced to call this function, which is error-prone, since
1172 * forgetting to call it would only show up as a bug on uncompressed metadata.
1175 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1177 if (!image->uncompressed_metadata)
1181 case MONO_TABLE_METHOD:
1182 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1183 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1186 case MONO_TABLE_FIELD:
1187 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1188 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1191 case MONO_TABLE_EVENT:
1192 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1193 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1196 case MONO_TABLE_PROPERTY:
1197 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1198 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1201 case MONO_TABLE_PARAM:
1202 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1203 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1212 * mono_metadata_decode_table_row:
1214 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1215 * uncompressed metadata into account, so it should be used to access the
1216 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1217 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1220 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1222 if (image->uncompressed_metadata)
1223 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1225 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1229 * mono_metadata_decode_table_row_col:
1231 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1232 * uncompressed metadata into account, so it should be used to access the
1233 * Method, Field, Param and Event tables.
1235 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1237 if (image->uncompressed_metadata)
1238 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1240 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1244 * mono_metadata_parse_typedef_or_ref:
1245 * @m: a metadata context.
1246 * @ptr: a pointer to an encoded TypedefOrRef in @m
1247 * @rptr: pointer updated to match the end of the decoded stream
1249 * Returns: a token valid in the @m metadata decoded from
1250 * the compressed representation.
1253 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1256 token = mono_metadata_decode_value (ptr, &ptr);
1259 return mono_metadata_token_from_dor (token);
1263 * mono_metadata_parse_custom_mod:
1264 * @m: a metadata context.
1265 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1266 * @ptr: a pointer to (possibly) the start of a custom modifier list
1267 * @rptr: pointer updated to match the end of the decoded stream
1269 * Checks if @ptr points to a type custom modifier compressed representation.
1271 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1274 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1276 MonoCustomMod local;
1277 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1280 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1281 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1288 * mono_metadata_parse_array_full:
1289 * @m: a metadata context.
1290 * @ptr: a pointer to an encoded array description.
1291 * @rptr: pointer updated to match the end of the decoded stream
1293 * Decodes the compressed array description found in the metadata @m at @ptr.
1295 * Returns: a #MonoArrayType structure describing the array type
1296 * and dimensions. Memory is allocated from the image mempool.
1298 * LOCKING: Acquires the loader lock
1301 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1302 const char *ptr, const char **rptr)
1305 MonoArrayType *array;
1308 array = mono_image_alloc0_lock (m, sizeof (MonoArrayType));
1309 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1312 array->eklass = mono_class_from_mono_type (etype);
1313 array->rank = mono_metadata_decode_value (ptr, &ptr);
1315 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1316 if (array->numsizes)
1317 array->sizes = g_new0 (int, array->numsizes);
1318 for (i = 0; i < array->numsizes; ++i)
1319 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1321 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1322 if (array->numlobounds)
1323 array->lobounds = g_new0 (int, array->numlobounds);
1324 for (i = 0; i < array->numlobounds; ++i)
1325 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1333 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1335 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1339 * mono_metadata_free_array:
1340 * @array: array description
1342 * Frees the array description returned from mono_metadata_parse_array().
1345 mono_metadata_free_array (MonoArrayType *array)
1347 g_free (array->sizes);
1348 g_free (array->lobounds);
1353 * need to add common field and param attributes combinations:
1356 * public static literal
1359 * private static literal
1361 static const MonoType
1363 /* data, attrs, type, nmods, byref, pinned */
1364 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1365 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1366 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1367 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1368 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1369 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1370 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1371 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1372 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1373 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1374 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1375 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1376 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1377 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1378 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1379 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1380 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1381 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1382 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1383 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1384 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1385 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1386 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1387 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1388 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1389 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1390 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1391 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1392 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1393 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1394 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1395 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1396 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1397 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1400 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1402 static GHashTable *type_cache = NULL;
1403 static GHashTable *generic_inst_cache = NULL;
1404 static GHashTable *generic_class_cache = NULL;
1405 static int next_generic_inst_id = 0;
1408 * Protected by the loader lock.
1409 * It has a MonoMethodInflated* as key and value.
1410 * The key lookup will just access the declaring and context fields
1412 static GHashTable *generic_method_cache = NULL;
1415 * Protected by the loader lock.
1416 * It has a MonoInflatedMethodSignature* as key and value.
1418 static GHashTable *generic_signature_cache = NULL;
1420 static guint mono_generic_class_hash (gconstpointer data);
1423 * MonoTypes with modifies are never cached, so we never check or use that field.
1426 mono_type_hash (gconstpointer data)
1428 const MonoType *type = (const MonoType *) data;
1429 if (type->type == MONO_TYPE_GENERICINST)
1430 return mono_generic_class_hash (type->data.generic_class);
1432 return type->type | (type->byref << 8) | (type->attrs << 9);
1436 mono_type_equal (gconstpointer ka, gconstpointer kb)
1438 const MonoType *a = (const MonoType *) ka;
1439 const MonoType *b = (const MonoType *) kb;
1441 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1443 /* need other checks */
1448 mono_metadata_generic_inst_hash (gconstpointer data)
1450 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1454 for (i = 0; i < ginst->type_argc; ++i) {
1456 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1459 return hash ^ (ginst->is_open << 8);
1463 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1467 if (a->id && b->id) {
1470 if (!signature_only)
1474 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1476 for (i = 0; i < a->type_argc; ++i) {
1477 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1484 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1486 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1487 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1489 return mono_generic_inst_equal_full (a, b, FALSE);
1493 mono_generic_class_hash (gconstpointer data)
1495 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1496 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1499 hash += gclass->is_tb_open;
1500 hash += mono_metadata_generic_context_hash (&gclass->context);
1506 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1508 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1509 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1511 return _mono_metadata_generic_class_equal (a, b, FALSE);
1515 * mono_metadata_init:
1517 * Initialize the global variables of this module.
1518 * This is a Mono runtime internal function.
1521 mono_metadata_init (void)
1525 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1526 generic_inst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
1527 generic_class_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
1529 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1530 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1534 * mono_metadata_cleanup:
1536 * Free all resources used by this module.
1537 * This is a Mono runtime internal function.
1540 mono_metadata_cleanup (void)
1542 g_hash_table_destroy (type_cache);
1543 g_hash_table_destroy (generic_inst_cache);
1544 g_hash_table_destroy (generic_class_cache);
1545 if (generic_method_cache)
1546 g_hash_table_destroy (generic_method_cache);
1547 if (generic_signature_cache)
1548 g_hash_table_destroy (generic_signature_cache);
1550 generic_inst_cache = NULL;
1551 generic_class_cache = NULL;
1552 generic_method_cache = NULL;
1553 generic_signature_cache = NULL;
1557 * mono_metadata_parse_type:
1558 * @m: metadata context
1559 * @mode: king of type that may be found at @ptr
1560 * @opt_attrs: optional attributes to store in the returned type
1561 * @ptr: pointer to the type representation
1562 * @rptr: pointer updated to match the end of the decoded stream
1564 * Decode a compressed type description found at @ptr in @m.
1565 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1566 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1567 * This function can be used to decode type descriptions in method signatures,
1568 * field signatures, locals signatures etc.
1570 * To parse a generic type, `generic_container' points to the current class'es
1571 * (the `generic_container' field in the MonoClass) or the current generic method's
1572 * (the `generic_container' field in the MonoMethodNormal) generic container.
1573 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1574 * this MonoGenericContainer.
1575 * This is a Mono runtime internal function.
1577 * LOCKING: Acquires the loader lock.
1579 * Returns: a #MonoType structure representing the decoded type.
1582 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1583 short opt_attrs, const char *ptr, const char **rptr)
1585 MonoType *type, *cached;
1587 gboolean byref = FALSE;
1588 gboolean pinned = FALSE;
1589 const char *tmp_ptr;
1594 * According to the spec, custom modifiers should come before the byref
1595 * flag, but the IL produced by ilasm from the following signature:
1596 * object modopt(...) &
1597 * starts with a byref flag, followed by the modifiers. (bug #49802)
1598 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1599 * it would be better to treat byref as real type constructor instead of
1601 * Also, pinned should come before anything else, but some MSV++ produced
1602 * assemblies violate this (#bug 61990).
1605 /* Count the modifiers first */
1610 case MONO_TYPE_PINNED:
1611 case MONO_TYPE_BYREF:
1614 case MONO_TYPE_CMOD_REQD:
1615 case MONO_TYPE_CMOD_OPT:
1617 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1625 type = mono_image_alloc0_lock (m, sizeof (MonoType) + ((gint32)count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod));
1626 type->num_mods = count;
1628 g_warning ("got more than 64 modifiers in type");
1631 memset (type, 0, sizeof (MonoType));
1634 /* Parse pinned, byref and custom modifiers */
1639 case MONO_TYPE_PINNED:
1643 case MONO_TYPE_BYREF:
1647 case MONO_TYPE_CMOD_REQD:
1648 case MONO_TYPE_CMOD_OPT:
1649 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1657 type->attrs = opt_attrs;
1658 type->byref = byref;
1659 type->pinned = pinned ? 1 : 0;
1661 if (!do_mono_metadata_parse_type (type, m, container, ptr, &ptr)) {
1668 if (!type->num_mods) {
1669 /* no need to free type here, because it is on the stack */
1670 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1671 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1673 /* Consider the case:
1675 class Foo<T> { class Bar {} }
1676 class Test : Foo<Test>.Bar {}
1678 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1679 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1681 We ensure that the MonoClass is in a state that we can canonicalize to:
1683 klass->byval_arg.data.klass == klass
1684 klass->this_arg.data.klass == klass
1686 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1688 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1689 of a MonoClass which currently holds the loader lock. 'type' is local.
1691 if (ret->data.klass == type->data.klass) {
1695 /* No need to use locking since nobody is modifying the hash table */
1696 if ((cached = g_hash_table_lookup (type_cache, type))) {
1701 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1703 if (type == &stype) {
1704 type = mono_image_alloc_lock (m, sizeof (MonoType));
1705 memcpy (type, &stype, sizeof (MonoType));
1711 * LOCKING: Acquires the loader lock.
1714 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1715 const char *ptr, const char **rptr)
1717 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1721 * mono_metadata_get_param_attrs:
1723 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1724 * returned memory needs to be freed by the caller. If all the param attributes are
1725 * 0, then NULL is returned.
1728 mono_metadata_get_param_attrs (MonoImage *m, int def)
1730 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1731 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1732 guint32 cols [MONO_PARAM_SIZE];
1733 guint lastp, i, param_index = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def - 1, MONO_METHOD_PARAMLIST);
1736 if (def < methodt->rows)
1737 lastp = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def, MONO_METHOD_PARAMLIST);
1739 lastp = paramt->rows + 1;
1741 for (i = param_index; i < lastp; ++i) {
1742 mono_metadata_decode_row (&m->tables [MONO_TABLE_PARAM], i - 1, cols, MONO_PARAM_SIZE);
1743 if (cols [MONO_PARAM_FLAGS]) {
1745 pattrs = g_new0 (int, 1 + (lastp - param_index));
1746 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1754 * mono_metadata_parse_signature_full:
1755 * @image: metadata context
1756 * @generic_container: generic container
1757 * @toke: metadata token
1759 * Decode a method signature stored in the STANDALONESIG table
1761 * LOCKING: Assumes the loader lock is held.
1763 * Returns: a MonoMethodSignature describing the signature.
1765 MonoMethodSignature*
1766 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1768 MonoTableInfo *tables = image->tables;
1769 guint32 idx = mono_metadata_token_index (token);
1774 return mono_lookup_dynamic_token (image, token, NULL);
1776 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1778 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1780 ptr = mono_metadata_blob_heap (image, sig);
1781 mono_metadata_decode_blob_size (ptr, &ptr);
1783 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1787 * mono_metadata_parse_signature:
1788 * @image: metadata context
1789 * @toke: metadata token
1791 * Decode a method signature stored in the STANDALONESIG table
1793 * Returns: a MonoMethodSignature describing the signature.
1795 MonoMethodSignature*
1796 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1798 return mono_metadata_parse_signature_full (image, NULL, token);
1802 * mono_metadata_signature_alloc:
1803 * @image: metadata context
1804 * @nparmas: number of parameters in the signature
1806 * Allocate a MonoMethodSignature structure with the specified number of params.
1807 * The return type and the params types need to be filled later.
1808 * This is a Mono runtime internal function.
1810 * LOCKING: Assumes the loader lock is held.
1812 * Returns: the new MonoMethodSignature structure.
1814 MonoMethodSignature*
1815 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1817 MonoMethodSignature *sig;
1819 sig = mono_image_alloc0_lock (m, sizeof (MonoMethodSignature) + ((gint32)nparams - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
1820 sig->param_count = nparams;
1821 sig->sentinelpos = -1;
1826 MonoMethodSignature*
1827 mono_metadata_signature_dup_full (MonoMemPool *mp, MonoMethodSignature *sig)
1831 sigsize = sizeof (MonoMethodSignature) + (sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *);
1834 MonoMethodSignature *ret;
1835 mono_loader_lock ();
1836 ret = mono_mempool_alloc (mp, sigsize);
1837 mono_loader_unlock ();
1839 memcpy (ret, sig, sigsize);
1842 return g_memdup (sig, sigsize);
1847 * mono_metadata_signature_dup:
1848 * @sig: method signature
1850 * Duplicate an existing MonoMethodSignature so it can be modified.
1851 * This is a Mono runtime internal function.
1853 * Returns: the new MonoMethodSignature structure.
1855 MonoMethodSignature*
1856 mono_metadata_signature_dup (MonoMethodSignature *sig)
1858 return mono_metadata_signature_dup_full (NULL, sig);
1862 * mono_metadata_parse_method_signature:
1863 * @m: metadata context
1864 * @generic_container: generics container
1865 * @def: the MethodDef index or 0 for Ref signatures.
1866 * @ptr: pointer to the signature metadata representation
1867 * @rptr: pointer updated to match the end of the decoded stream
1869 * Decode a method signature stored at @ptr.
1870 * This is a Mono runtime internal function.
1872 * LOCKING: Assumes the loader lock is held.
1874 * Returns: a MonoMethodSignature describing the signature.
1876 MonoMethodSignature *
1877 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1878 int def, const char *ptr, const char **rptr)
1880 MonoMethodSignature *method;
1881 int i, *pattrs = NULL;
1882 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1883 guint32 gen_param_count = 0;
1884 gboolean is_open = FALSE;
1887 gen_param_count = 1;
1892 call_convention = *ptr & 0x0F;
1894 if (gen_param_count)
1895 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1896 param_count = mono_metadata_decode_value (ptr, &ptr);
1899 pattrs = mono_metadata_get_param_attrs (m, def);
1900 method = mono_metadata_signature_alloc (m, param_count);
1901 method->hasthis = hasthis;
1902 method->explicit_this = explicit_this;
1903 method->call_convention = call_convention;
1904 method->generic_param_count = gen_param_count;
1906 if (call_convention != 0xa) {
1907 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1909 mono_metadata_free_method_signature (method);
1913 is_open = mono_class_is_open_constructed_type (method->ret);
1916 for (i = 0; i < method->param_count; ++i) {
1917 if (*ptr == MONO_TYPE_SENTINEL) {
1918 if (method->call_convention != MONO_CALL_VARARG || def)
1919 g_error ("found sentinel for methoddef or no vararg method");
1920 if (method->sentinelpos >= 0)
1921 g_error ("found sentinel twice in the same signature");
1922 method->sentinelpos = i;
1925 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1926 if (!method->params [i]) {
1927 mono_metadata_free_method_signature (method);
1932 is_open = mono_class_is_open_constructed_type (method->params [i]);
1935 /* The sentinel could be missing if the caller does not pass any additional arguments */
1936 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1937 method->sentinelpos = method->param_count;
1939 method->has_type_parameters = is_open;
1941 if (def && (method->call_convention == MONO_CALL_VARARG))
1942 method->sentinelpos = method->param_count;
1949 * Add signature to a cache and increase ref count...
1956 * mono_metadata_parse_method_signature:
1957 * @m: metadata context
1958 * @def: the MethodDef index or 0 for Ref signatures.
1959 * @ptr: pointer to the signature metadata representation
1960 * @rptr: pointer updated to match the end of the decoded stream
1962 * Decode a method signature stored at @ptr.
1963 * This is a Mono runtime internal function.
1965 * LOCKING: Assumes the loader lock is held.
1967 * Returns: a MonoMethodSignature describing the signature.
1969 MonoMethodSignature *
1970 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1972 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1976 * mono_metadata_free_method_signature:
1977 * @sig: signature to destroy
1979 * Free the memory allocated in the signature @sig.
1980 * This method needs to be robust and work also on partially-built
1981 * signatures, so it does extra checks.
1984 mono_metadata_free_method_signature (MonoMethodSignature *sig)
1986 /* Everything is allocated from mempools */
1990 mono_metadata_free_type (sig->ret);
1991 for (i = 0; i < sig->param_count; ++i) {
1992 if (sig->params [i])
1993 mono_metadata_free_type (sig->params [i]);
1999 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2003 /* Allocated in inflate_generic_signature () */
2005 mono_metadata_free_type (sig->ret);
2006 for (i = 0; i < sig->param_count; ++i) {
2007 if (sig->params [i])
2008 mono_metadata_free_type (sig->params [i]);
2014 inflated_method_equal (gconstpointer a, gconstpointer b)
2016 const MonoMethodInflated *ma = a;
2017 const MonoMethodInflated *mb = b;
2018 if (ma->declaring != mb->declaring)
2020 if (ma->is_mb_open != mb->is_mb_open)
2022 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2026 inflated_method_hash (gconstpointer a)
2028 const MonoMethodInflated *ma = a;
2029 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring)) + ma->is_mb_open;
2033 inflated_signature_equal (gconstpointer a, gconstpointer b)
2035 const MonoInflatedMethodSignature *sig1 = a;
2036 const MonoInflatedMethodSignature *sig2 = b;
2038 /* sig->sig is assumed to be canonized */
2039 if (sig1->sig != sig2->sig)
2041 /* The generic instances are canonized */
2042 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2046 inflated_signature_hash (gconstpointer a)
2048 const MonoInflatedMethodSignature *sig = a;
2050 /* sig->sig is assumed to be canonized */
2051 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2055 dump_ginst (MonoGenericInst *ginst)
2060 g_print ("Ginst: <");
2061 for (i = 0; i < ginst->type_argc; ++i) {
2064 name = mono_type_get_name (ginst->type_argv [i]);
2065 g_print ("%s", name);
2071 static gboolean type_in_image (MonoType *type, MonoImage *image);
2074 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2076 gpointer iter = NULL;
2079 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2080 if (type_in_image (p, image))
2083 return type_in_image (mono_signature_get_return_type (sig), image);
2087 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2091 for (i = 0; i < ginst->type_argc; ++i) {
2092 if (type_in_image (ginst->type_argv [i], image))
2100 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2102 return gclass->container_class->image == image ||
2103 ginst_in_image (gclass->context.class_inst, image);
2107 type_in_image (MonoType *type, MonoImage *image)
2110 switch (type->type) {
2111 case MONO_TYPE_GENERICINST:
2112 return gclass_in_image (type->data.generic_class, image);
2114 type = type->data.type;
2116 case MONO_TYPE_SZARRAY:
2117 type = &type->data.klass->byval_arg;
2119 case MONO_TYPE_ARRAY:
2120 type = &type->data.array->eklass->byval_arg;
2122 case MONO_TYPE_FNPTR:
2123 return signature_in_image (type->data.method, image);
2125 if (type->data.generic_param->owner) {
2126 g_assert (!type->data.generic_param->owner->is_method);
2128 * FIXME: The following check is here solely
2129 * for monodis, which uses the internal
2131 * mono_metadata_load_generic_params(). The
2132 * caller of that function needs to fill in
2133 * owner->klass or owner->method of the
2134 * returned struct, but monodis doesn't do
2135 * that. The image unloading depends on that,
2136 * however, so a crash results without this
2139 if (!type->data.generic_param->owner->owner.klass)
2141 return type->data.generic_param->owner->owner.klass->image == image;
2143 return type->data.generic_param->image == image;
2145 case MONO_TYPE_MVAR:
2146 if (type->data.generic_param->owner) {
2147 g_assert (type->data.generic_param->owner->is_method);
2148 if (!type->data.generic_param->owner->owner.method)
2149 /* RefEmit created generic param whose method is not finished */
2151 return type->data.generic_param->owner->owner.method->klass->image == image;
2153 return type->data.generic_param->image == image;
2156 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2157 return image == mono_class_from_mono_type (type)->image;
2164 } CleanForImageUserData;
2167 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2169 MonoGenericClass *gclass = key;
2170 CleanForImageUserData *user_data = data;
2172 if (!gclass_in_image (gclass, user_data->image))
2175 user_data->list = g_slist_prepend (user_data->list, gclass);
2180 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2182 MonoGenericInst *ginst = key;
2183 CleanForImageUserData *user_data = data;
2185 if (!ginst_in_image (ginst, user_data->image))
2188 user_data->list = g_slist_prepend (user_data->list, ginst);
2193 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2195 MonoImage *image = data;
2196 MonoMethodInflated *method = key;
2199 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2200 return method->declaring->klass->image == image ||
2201 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2202 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || signature_in_image (mono_method_signature ((MonoMethod*)method), image);
2206 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2208 MonoImage *image = data;
2209 MonoInflatedMethodSignature *sig = key;
2211 return signature_in_image (sig->sig, image) ||
2212 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2213 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2217 mono_metadata_clean_for_image (MonoImage *image)
2219 CleanForImageUserData ginst_data, gclass_data;
2222 /* The data structures could reference each other so we delete them in two phases */
2223 ginst_data.image = gclass_data.image = image;
2224 ginst_data.list = gclass_data.list = NULL;
2226 mono_loader_lock ();
2227 /* Collect the items to delete and remove them from the hash table */
2228 g_hash_table_foreach_steal (generic_inst_cache, steal_ginst_in_image, &ginst_data);
2229 g_hash_table_foreach_steal (generic_class_cache, steal_gclass_in_image, &gclass_data);
2230 if (generic_method_cache)
2231 g_hash_table_foreach_remove (generic_method_cache, inflated_method_in_image, image);
2232 if (generic_signature_cache)
2233 g_hash_table_foreach_remove (generic_signature_cache, inflated_signature_in_image, image);
2234 /* Delete the removed items */
2235 for (l = ginst_data.list; l; l = l->next)
2236 free_generic_inst (l->data);
2237 for (l = gclass_data.list; l; l = l->next)
2238 free_generic_class (l->data);
2239 g_slist_free (ginst_data.list);
2240 g_slist_free (gclass_data.list);
2241 mono_class_unregister_image_generic_subclasses (image);
2242 mono_loader_unlock ();
2246 free_inflated_method (MonoMethodInflated *imethod)
2249 MonoMethod *method = (MonoMethod*)imethod;
2251 if (method->signature)
2252 mono_metadata_free_inflated_signature (method->signature);
2254 if (!((method->flags & METHOD_ATTRIBUTE_ABSTRACT) || (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) || (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) || (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))) {
2255 MonoMethodNormal* mn = (MonoMethodNormal*) method;
2256 MonoMethodHeader *header = mn->header;
2259 /* Allocated in inflate_generic_header () */
2260 for (i = 0; i < header->num_locals; ++i)
2261 mono_metadata_free_type (header->locals [i]);
2262 g_free (header->clauses);
2271 free_generic_inst (MonoGenericInst *ginst)
2275 for (i = 0; i < ginst->type_argc; ++i)
2276 mono_metadata_free_type (ginst->type_argv [i]);
2282 free_generic_class (MonoGenericClass *gclass)
2286 /* FIXME: The dynamic case */
2287 if (gclass->cached_class && !gclass->cached_class->image->dynamic && !mono_generic_class_is_generic_type_definition (gclass)) {
2288 MonoClass *class = gclass->cached_class;
2290 /* Allocated in mono_class_init () */
2291 g_free (class->methods);
2292 g_free (class->properties);
2293 /* Allocated in mono_generic_class_get_class () */
2294 g_free (class->interfaces);
2296 } else if (gclass->is_dynamic) {
2297 MonoDynamicGenericClass *dgclass = (MonoDynamicGenericClass *)gclass;
2299 for (i = 0; i < dgclass->count_fields; ++i) {
2300 MonoClassField *field = dgclass->fields + i;
2301 mono_metadata_free_type (field->type);
2302 g_free ((char*)field->name);
2304 for (i = 0; i < dgclass->count_properties; ++i) {
2305 MonoProperty *property = dgclass->properties + i;
2306 g_free ((char*)property->name);
2308 for (i = 0; i < dgclass->count_events; ++i) {
2309 MonoEvent *event = dgclass->events + i;
2310 g_free ((char*)event->name);
2313 g_free (dgclass->methods);
2314 g_free (dgclass->ctors);
2315 g_free (dgclass->fields);
2316 g_free (dgclass->properties);
2317 g_free (dgclass->events);
2318 g_free (dgclass->field_objects);
2319 g_free (dgclass->field_generic_types);
2320 if (!mono_generic_class_is_generic_type_definition (gclass))
2321 g_free (gclass->cached_class);
2327 free_inflated_signature (MonoInflatedMethodSignature *sig)
2329 mono_metadata_free_inflated_signature (sig->sig);
2334 * LOCKING: assumes the loader lock is held.
2337 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2340 if (!generic_method_cache)
2341 generic_method_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2342 g_hash_table_insert (generic_method_cache, method, method);
2345 if (generic_method_cache)
2346 return g_hash_table_lookup (generic_method_cache, method);
2352 * mono_metadata_get_inflated_signature:
2354 * Given an inflated signature and a generic context, return a canonical copy of the
2355 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2357 MonoMethodSignature *
2358 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2360 MonoInflatedMethodSignature helper;
2361 MonoInflatedMethodSignature *res;
2363 mono_loader_lock ();
2364 if (!generic_signature_cache)
2365 generic_signature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2368 helper.context.class_inst = context->class_inst;
2369 helper.context.method_inst = context->method_inst;
2370 res = g_hash_table_lookup (generic_signature_cache, &helper);
2372 res = g_new0 (MonoInflatedMethodSignature, 1);
2374 res->context.class_inst = context->class_inst;
2375 res->context.method_inst = context->method_inst;
2376 g_hash_table_insert (generic_signature_cache, res, res);
2379 mono_loader_unlock ();
2384 * mono_metadata_get_generic_inst:
2386 * Given a list of types, return a MonoGenericInst that represents that list.
2387 * The returned MonoGenericInst has its own copy of the list of types. The list
2388 * passed in the argument can be freed, modified or disposed of.
2392 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2394 MonoGenericInst *ginst;
2397 int size = sizeof (MonoGenericInst) + (type_argc - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *);
2399 for (i = 0; i < type_argc; ++i)
2400 if (mono_class_is_open_constructed_type (type_argv [i]))
2402 is_open = (i < type_argc);
2404 ginst = alloca (size);
2406 ginst->is_open = is_open;
2407 ginst->type_argc = type_argc;
2408 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2410 mono_loader_lock ();
2412 ginst = g_hash_table_lookup (generic_inst_cache, ginst);
2414 ginst = g_malloc (size);
2415 ginst->id = ++next_generic_inst_id;
2416 ginst->is_open = is_open;
2417 ginst->type_argc = type_argc;
2419 for (i = 0; i < type_argc; ++i)
2420 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2422 g_hash_table_insert (generic_inst_cache, ginst, ginst);
2425 mono_loader_unlock ();
2430 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2432 MonoGenericContainer *container = container_class->generic_container;
2434 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2436 return inst == container->context.class_inst;
2440 * mono_metadata_lookup_generic_class:
2442 * Returns a MonoGenericClass with the given properties.
2446 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2448 MonoGenericClass *gclass;
2449 MonoGenericClass helper;
2450 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2452 helper.container_class = container_class;
2453 helper.context.class_inst = inst;
2454 helper.context.method_inst = NULL;
2455 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2456 helper.is_tb_open = is_tb_open;
2457 helper.cached_class = NULL;
2459 mono_loader_lock ();
2461 gclass = g_hash_table_lookup (generic_class_cache, &helper);
2463 /* A tripwire just to keep us honest */
2464 g_assert (!helper.cached_class);
2467 mono_loader_unlock ();
2472 MonoDynamicGenericClass *dgclass = g_new0 (MonoDynamicGenericClass, 1);
2473 gclass = &dgclass->generic_class;
2474 gclass->is_dynamic = 1;
2476 gclass = g_new0 (MonoGenericClass, 1);
2479 gclass->is_tb_open = is_tb_open;
2480 gclass->container_class = container_class;
2481 gclass->context.class_inst = inst;
2482 gclass->context.method_inst = NULL;
2483 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2484 gclass->cached_class = container_class;
2486 g_hash_table_insert (generic_class_cache, gclass, gclass);
2488 mono_loader_unlock ();
2494 * mono_metadata_inflate_generic_inst:
2496 * Instantiate the generic instance @ginst with the context @context.
2500 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context)
2502 MonoType **type_argv;
2503 MonoGenericInst *nginst;
2506 if (!ginst->is_open)
2509 type_argv = g_new0 (MonoType*, ginst->type_argc);
2511 for (i = 0; i < ginst->type_argc; i++)
2512 type_argv [i] = mono_class_inflate_generic_type (ginst->type_argv [i], context);
2514 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2516 for (i = 0; i < ginst->type_argc; i++)
2517 mono_metadata_free_type (type_argv [i]);
2524 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2525 int count, const char *ptr, const char **rptr)
2527 MonoType **type_argv;
2528 MonoGenericInst *ginst;
2531 type_argv = g_new0 (MonoType*, count);
2533 for (i = 0; i < count; i++) {
2534 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2545 ginst = mono_metadata_get_generic_inst (count, type_argv);
2553 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2554 const char *ptr, const char **rptr)
2556 MonoGenericInst *inst;
2561 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
2565 gklass = mono_class_from_mono_type (gtype);
2566 if (!gklass->generic_container)
2569 count = mono_metadata_decode_value (ptr, &ptr);
2570 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
2577 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
2583 * @gc: The generic container to normalize
2584 * @type: The kind of generic parameters the resulting generic-container should contain
2587 static MonoGenericContainer *
2588 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
2590 gboolean is_var = (type == MONO_TYPE_VAR);
2594 g_assert (is_var || type == MONO_TYPE_MVAR);
2597 if (gc->is_method || gc->parent)
2599 * The current MonoGenericContainer is a generic method -> its `parent'
2600 * points to the containing class'es container.
2609 * mono_metadata_parse_generic_param:
2610 * @generic_container: Our MonoClass's or MonoMethodNormal's MonoGenericContainer;
2611 * see mono_metadata_parse_type_full() for details.
2612 * Internal routine to parse a generic type parameter.
2613 * LOCKING: Acquires the loader lock
2615 static MonoGenericParam *
2616 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
2617 MonoTypeEnum type, const char *ptr, const char **rptr)
2619 int index = mono_metadata_decode_value (ptr, &ptr);
2623 generic_container = select_container (generic_container, type);
2624 if (!generic_container) {
2625 /* Create dummy MonoGenericParam */
2626 MonoGenericParam *param;
2628 param = mono_image_alloc0_lock (m, sizeof (MonoGenericParam));
2629 param->name = mono_image_alloc0_lock (m, 8);
2630 sprintf ((char*)param->name, "%d", index);
2637 g_assert (index < generic_container->type_argc);
2638 return &generic_container->type_params [index];
2642 * mono_metadata_get_shared_type:
2644 * Return a shared instance of TYPE, if available, NULL otherwise.
2645 * Shared MonoType instances help save memory. Their contents should not be modified
2646 * by the caller. They do not need to be freed as their lifetime is bound by either
2647 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
2648 * instance they are embedded in. If they are freed, they should be freed using
2649 * mono_metadata_free_type () instead of g_free ().
2652 mono_metadata_get_shared_type (MonoType *type)
2656 /* No need to use locking since nobody is modifying the hash table */
2657 if ((cached = g_hash_table_lookup (type_cache, type)))
2660 switch (type->type){
2661 case MONO_TYPE_CLASS:
2662 case MONO_TYPE_VALUETYPE:
2663 if (type == &type->data.klass->byval_arg)
2665 if (type == &type->data.klass->this_arg)
2674 * do_mono_metadata_parse_type:
2675 * @type: MonoType to be filled in with the return value
2677 * @generic_context: generics_context
2678 * @ptr: pointer to the encoded type
2679 * @rptr: pointer where the end of the encoded type is saved
2681 * Internal routine used to "fill" the contents of @type from an
2682 * allocated pointer. This is done this way to avoid doing too
2683 * many mini-allocations (particularly for the MonoFieldType which
2684 * most of the time is just a MonoType, but sometimes might be augmented).
2686 * This routine is used by mono_metadata_parse_type and
2687 * mono_metadata_parse_field_type
2689 * This extracts a Type as specified in Partition II (22.2.12)
2691 * Returns: FALSE if the type could not be loaded
2694 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2695 const char *ptr, const char **rptr)
2698 type->type = mono_metadata_decode_value (ptr, &ptr);
2700 switch (type->type){
2701 case MONO_TYPE_VOID:
2702 case MONO_TYPE_BOOLEAN:
2703 case MONO_TYPE_CHAR:
2716 case MONO_TYPE_STRING:
2717 case MONO_TYPE_OBJECT:
2718 case MONO_TYPE_TYPEDBYREF:
2720 case MONO_TYPE_VALUETYPE:
2721 case MONO_TYPE_CLASS: {
2723 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
2724 type->data.klass = mono_class_get (m, token);
2725 if (!type->data.klass)
2729 case MONO_TYPE_SZARRAY: {
2730 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2733 type->data.klass = mono_class_from_mono_type (etype);
2737 type->data.type = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2738 if (!type->data.type)
2741 case MONO_TYPE_FNPTR:
2742 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
2744 case MONO_TYPE_ARRAY:
2745 type->data.array = mono_metadata_parse_array_full (m, container, ptr, &ptr);
2747 case MONO_TYPE_MVAR:
2749 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
2751 case MONO_TYPE_GENERICINST:
2752 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
2755 g_error ("type 0x%02x not handled in do_mono_metadata_parse_type", type->type);
2764 * mono_metadata_free_type:
2765 * @type: type to free
2767 * Free the memory allocated for type @type which is allocated on the heap.
2770 mono_metadata_free_type (MonoType *type)
2772 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
2775 switch (type->type){
2776 case MONO_TYPE_OBJECT:
2777 case MONO_TYPE_STRING:
2778 if (!type->data.klass)
2781 case MONO_TYPE_CLASS:
2782 case MONO_TYPE_VALUETYPE:
2783 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
2787 mono_metadata_free_type (type->data.type);
2789 case MONO_TYPE_FNPTR:
2790 mono_metadata_free_method_signature (type->data.method);
2792 case MONO_TYPE_ARRAY:
2793 mono_metadata_free_array (type->data.array);
2802 hex_dump (const char *buffer, int base, int count)
2804 int show_header = 1;
2812 for (i = 0; i < count; i++){
2815 printf ("\n0x%08x: ", (unsigned char) base + i);
2817 printf ("%02x ", (unsigned char) (buffer [i]));
2824 * @mh: The Method header
2825 * @ptr: Points to the beginning of the Section Data (25.3)
2828 parse_section_data (MonoImage *m, MonoMethodHeader *mh, const unsigned char *ptr)
2830 unsigned char sect_data_flags;
2831 const unsigned char *sptr;
2833 guint32 sect_data_len;
2836 /* align on 32-bit boundary */
2837 sptr = ptr = dword_align (ptr);
2838 sect_data_flags = *ptr;
2841 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
2843 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
2846 sect_data_len = ptr [0];
2850 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
2851 hex_dump (sptr, 0, sect_data_len+8);
2852 g_print ("\nheader: ");
2853 hex_dump (sptr-4, 0, 4);
2857 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
2858 const unsigned char *p = dword_align (ptr);
2860 mh->num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
2861 /* we could just store a pointer if we don't need to byteswap */
2862 mh->clauses = mono_image_alloc0_lock (m, sizeof (MonoExceptionClause) * mh->num_clauses);
2863 for (i = 0; i < mh->num_clauses; ++i) {
2864 MonoExceptionClause *ec = &mh->clauses [i];
2867 ec->flags = read32 (p);
2868 ec->try_offset = read32 (p + 4);
2869 ec->try_len = read32 (p + 8);
2870 ec->handler_offset = read32 (p + 12);
2871 ec->handler_len = read32 (p + 16);
2872 tof_value = read32 (p + 20);
2875 ec->flags = read16 (p);
2876 ec->try_offset = read16 (p + 2);
2877 ec->try_len = *(p + 4);
2878 ec->handler_offset = read16 (p + 5);
2879 ec->handler_len = *(p + 7);
2880 tof_value = read32 (p + 8);
2883 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2884 ec->data.filter_offset = tof_value;
2885 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
2886 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
2888 ec->data.catch_class = NULL;
2890 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
2894 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
2895 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
2902 * mono_metadata_parse_mh_full:
2903 * @m: metadata context
2904 * @generic_context: generics context
2905 * @ptr: pointer to the method header.
2907 * Decode the method header at @ptr, including pointer to the IL code,
2908 * info about local variables and optional exception tables.
2909 * This is a Mono runtime internal function.
2911 * LOCKING: Acquires the loader lock.
2913 * Returns: a MonoMethodHeader allocated from the image mempool.
2916 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
2918 MonoMethodHeader *mh;
2919 unsigned char flags = *(const unsigned char *) ptr;
2920 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
2922 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
2923 const unsigned char *code;
2926 g_return_val_if_fail (ptr != NULL, NULL);
2929 case METHOD_HEADER_TINY_FORMAT:
2930 mh = mono_image_alloc0_lock (m, sizeof (MonoMethodHeader));
2933 local_var_sig_tok = 0;
2934 mh->code_size = flags >> 2;
2935 mh->code = (unsigned char*)ptr;
2937 case METHOD_HEADER_TINY_FORMAT1:
2938 mh = mono_image_alloc0_lock (m, sizeof (MonoMethodHeader));
2941 local_var_sig_tok = 0;
2944 * The spec claims 3 bits, but the Beta2 is
2947 mh->code_size = flags >> 2;
2948 mh->code = (unsigned char*)ptr;
2950 case METHOD_HEADER_FAT_FORMAT:
2951 fat_flags = read16 (ptr);
2953 hsize = (fat_flags >> 12) & 0xf;
2954 max_stack = read16 (ptr);
2956 code_size = read32 (ptr);
2958 local_var_sig_tok = read32 (ptr);
2961 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
2966 code = (unsigned char*)ptr;
2968 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
2972 * There are more sections
2974 ptr = (char*)code + code_size;
2980 if (local_var_sig_tok) {
2981 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
2982 const char *locals_ptr;
2983 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
2984 int len=0, i, bsize;
2986 mono_metadata_decode_row (t, (local_var_sig_tok & 0xffffff)-1, cols, 1);
2987 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
2988 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
2989 if (*locals_ptr != 0x07)
2990 g_warning ("wrong signature for locals blob");
2992 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
2993 mh = mono_image_alloc0_lock (m, sizeof (MonoMethodHeader) + (len - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
2994 mh->num_locals = len;
2995 for (i = 0; i < len; ++i) {
2996 mh->locals [i] = mono_metadata_parse_type_full (
2997 m, container, MONO_PARSE_LOCAL, 0, locals_ptr, &locals_ptr);
2998 if (!mh->locals [i]) {
3003 mh = mono_image_alloc0_lock (m, sizeof (MonoMethodHeader));
3006 mh->code_size = code_size;
3007 mh->max_stack = max_stack;
3008 mh->init_locals = init_locals;
3009 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3010 parse_section_data (m, mh, (const unsigned char*)ptr);
3015 * mono_metadata_parse_mh:
3016 * @generic_context: generics context
3017 * @ptr: pointer to the method header.
3019 * Decode the method header at @ptr, including pointer to the IL code,
3020 * info about local variables and optional exception tables.
3021 * This is a Mono runtime internal function.
3023 * Returns: a MonoMethodHeader.
3026 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3028 MonoMethodHeader *res;
3030 mono_loader_lock ();
3032 res = mono_metadata_parse_mh_full (m, NULL, ptr);
3034 mono_loader_unlock ();
3040 * mono_metadata_free_mh:
3041 * @mh: a method header
3043 * Free the memory allocated for the method header.
3044 * This is a Mono runtime internal function.
3047 mono_metadata_free_mh (MonoMethodHeader *mh)
3049 /* Allocated from the mempool */
3053 * mono_method_header_get_code:
3054 * @header: a MonoMethodHeader pointer
3055 * @code_size: memory location for returning the code size
3056 * @max_stack: memory location for returning the max stack
3058 * Method header accessor to retreive info about the IL code properties:
3059 * a pointer to the IL code itself, the size of the code and the max number
3060 * of stack slots used by the code.
3062 * Returns: pointer to the IL code represented by the method header.
3064 const unsigned char*
3065 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3068 *code_size = header->code_size;
3070 *max_stack = header->max_stack;
3071 return header->code;
3075 * mono_method_header_get_locals:
3076 * @header: a MonoMethodHeader pointer
3077 * @num_locals: memory location for returning the number of local variables
3078 * @init_locals: memory location for returning the init_locals flag
3080 * Method header accessor to retreive info about the local variables:
3081 * an array of local types, the number of locals and whether the locals
3082 * are supposed to be initialized to 0 on method entry
3084 * Returns: pointer to an array of types of the local variables
3087 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3090 *num_locals = header->num_locals;
3092 *init_locals = header->init_locals;
3093 return header->locals;
3097 * mono_method_header_get_num_clauses:
3098 * @header: a MonoMethodHeader pointer
3100 * Method header accessor to retreive the number of exception clauses.
3102 * Returns: the number of exception clauses present
3105 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3107 return header->num_clauses;
3111 * mono_method_header_get_clauses:
3112 * @header: a MonoMethodHeader pointer
3113 * @method: MonoMethod the header belongs to
3114 * @iter: pointer to a iterator
3115 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3117 * Get the info about the exception clauses in the method. Set *iter to NULL to
3118 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3119 * At each iteration, the structure pointed to by clause if filled with the
3120 * exception clause information.
3122 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3126 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3128 MonoExceptionClause *sc;
3129 /* later we'll be able to use this interface to parse the clause info on demand,
3130 * without allocating anything.
3132 if (!iter || !header->num_clauses)
3135 *iter = sc = header->clauses;
3141 if (sc < header->clauses + header->num_clauses) {
3150 * mono_metadata_parse_field_type:
3151 * @m: metadata context to extract information from
3152 * @ptr: pointer to the field signature
3153 * @rptr: pointer updated to match the end of the decoded stream
3155 * Parses the field signature, and returns the type information for it.
3157 * Returns: The MonoType that was extracted from @ptr.
3160 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3162 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3166 * mono_metadata_parse_param:
3167 * @m: metadata context to extract information from
3168 * @ptr: pointer to the param signature
3169 * @rptr: pointer updated to match the end of the decoded stream
3171 * Parses the param signature, and returns the type information for it.
3173 * Returns: The MonoType that was extracted from @ptr.
3176 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3178 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3182 * mono_metadata_token_from_dor:
3183 * @dor_token: A TypeDefOrRef coded index
3185 * dor_token is a TypeDefOrRef coded index: it contains either
3186 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3187 * bits contain an index into the table.
3189 * Returns: an expanded token
3192 mono_metadata_token_from_dor (guint32 dor_index)
3196 table = dor_index & 0x03;
3197 idx = dor_index >> 2;
3200 case 0: /* TypeDef */
3201 return MONO_TOKEN_TYPE_DEF | idx;
3202 case 1: /* TypeRef */
3203 return MONO_TOKEN_TYPE_REF | idx;
3204 case 2: /* TypeSpec */
3205 return MONO_TOKEN_TYPE_SPEC | idx;
3207 g_assert_not_reached ();
3214 * We use this to pass context information to the row locator
3217 int idx; /* The index that we are trying to locate */
3218 int col_idx; /* The index in the row where idx may be stored */
3219 MonoTableInfo *t; /* pointer to the table */
3224 * How the row locator works.
3229 * ___|___------> _______
3232 * A column in the rows of table A references an index in table B.
3233 * For example A may be the TYPEDEF table and B the METHODDEF table.
3235 * Given an index in table B we want to get the row in table A
3236 * where the column n references our index in B.
3238 * In the locator_t structure:
3240 * col_idx is the column number
3241 * index is the index in table B
3242 * result will be the index in table A
3245 * Table A Table B column (in table A)
3246 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3247 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3248 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3249 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3250 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3252 * Note that we still don't support encoded indexes.
3256 typedef_locator (const void *a, const void *b)
3258 locator_t *loc = (locator_t *) a;
3259 const char *bb = (const char *) b;
3260 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3261 guint32 col, col_next;
3263 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3269 * Need to check that the next row is valid.
3271 if (typedef_index + 1 < loc->t->rows) {
3272 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3273 if (loc->idx >= col_next)
3276 if (col == col_next)
3280 loc->result = typedef_index;
3286 table_locator (const void *a, const void *b)
3288 locator_t *loc = (locator_t *) a;
3289 const char *bb = (const char *) b;
3290 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3293 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3295 if (loc->idx == col) {
3296 loc->result = table_index;
3306 declsec_locator (const void *a, const void *b)
3308 locator_t *loc = (locator_t *) a;
3309 const char *bb = (const char *) b;
3310 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3313 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3315 if (loc->idx == col) {
3316 loc->result = table_index;
3328 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3329 * which contains IDX.
3332 search_ptr_table (MonoImage *image, int table, int idx)
3334 MonoTableInfo *ptrdef = &image->tables [table];
3337 /* Use a linear search to find our index in the table */
3338 for (i = 0; i < ptrdef->rows; i ++)
3339 /* All the Ptr tables have the same structure */
3340 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3343 if (i < ptrdef->rows)
3350 * mono_metadata_typedef_from_field:
3351 * @meta: metadata context
3352 * @index: FieldDef token
3354 * Returns: the 1-based index into the TypeDef table of the type that
3355 * declared the field described by @index, or 0 if not found.
3358 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3360 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3366 loc.idx = mono_metadata_token_index (index);
3367 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3370 if (meta->uncompressed_metadata)
3371 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3373 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3374 g_assert_not_reached ();
3376 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3377 return loc.result + 1;
3381 * mono_metadata_typedef_from_method:
3382 * @meta: metadata context
3383 * @index: MethodDef token
3385 * Returns: the 1-based index into the TypeDef table of the type that
3386 * declared the method described by @index. 0 if not found.
3389 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3391 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3397 loc.idx = mono_metadata_token_index (index);
3398 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3401 if (meta->uncompressed_metadata)
3402 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3404 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3405 g_assert_not_reached ();
3407 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3408 return loc.result + 1;
3412 * mono_metadata_interfaces_from_typedef_full:
3413 * @meta: metadata context
3414 * @index: typedef token
3416 * The array of interfaces that the @index typedef token implements is returned in
3417 * @interfaces. The number of elemnts in the array is returned in @count.
3419 * LOCKING: Assumes the loader lock is held.
3421 * Returns: TRUE on success, FALSE on failure.
3424 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, MonoGenericContext *context)
3426 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3429 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3438 loc.idx = mono_metadata_token_index (index);
3439 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3442 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3447 * We may end up in the middle of the rows...
3450 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
3456 while (pos < tdef->rows) {
3457 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3458 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3463 result = mono_image_alloc0_lock (meta, sizeof (MonoClass*) * (pos - start));
3466 while (pos < tdef->rows) {
3469 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3470 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3472 iface = mono_class_get_full (
3473 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
3476 result [pos - start] = iface;
3479 *count = pos - start;
3480 *interfaces = result;
3485 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
3487 MonoClass **interfaces;
3490 mono_loader_lock ();
3491 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, NULL);
3492 mono_loader_unlock ();
3500 * mono_metadata_nested_in_typedef:
3501 * @meta: metadata context
3502 * @index: typedef token
3504 * Returns: the 1-based index into the TypeDef table of the type
3505 * where the type described by @index is nested.
3506 * Retruns 0 if @index describes a non-nested type.
3509 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
3511 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3517 loc.idx = mono_metadata_token_index (index);
3518 loc.col_idx = MONO_NESTED_CLASS_NESTED;
3521 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3524 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3525 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
3529 * mono_metadata_nesting_typedef:
3530 * @meta: metadata context
3531 * @index: typedef token
3533 * Returns: the 1-based index into the TypeDef table of the first type
3534 * that is nested inside the type described by @index. The search starts at
3535 * @start_index. returns 0 if no such type is found.
3538 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
3540 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3542 guint32 class_index = mono_metadata_token_index (index);
3547 start = start_index;
3549 while (start <= tdef->rows) {
3550 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
3556 if (start > tdef->rows)
3563 * mono_metadata_packing_from_typedef:
3564 * @meta: metadata context
3565 * @index: token representing a type
3567 * Returns: the info stored in the ClassLAyout table for the given typedef token
3568 * into the @packing and @size pointers.
3569 * Returns 0 if the info is not found.
3572 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
3574 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
3576 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
3581 loc.idx = mono_metadata_token_index (index);
3582 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
3585 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3588 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
3590 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
3592 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
3594 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3595 return loc.result + 1;
3599 * mono_metadata_custom_attrs_from_index:
3600 * @meta: metadata context
3601 * @index: token representing the parent
3603 * Returns: the 1-based index into the CustomAttribute table of the first
3604 * attribute which belongs to the metadata object described by @index.
3605 * Returns 0 if no such attribute is found.
3608 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
3610 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
3617 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
3620 /* FIXME: Index translation */
3622 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3625 /* Find the first entry by searching backwards */
3626 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
3629 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3630 return loc.result + 1;
3634 * mono_metadata_declsec_from_index:
3635 * @meta: metadata context
3636 * @index: token representing the parent
3638 * Returns: the 0-based index into the DeclarativeSecurity table of the first
3639 * attribute which belongs to the metadata object described by @index.
3640 * Returns -1 if no such attribute is found.
3643 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
3645 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
3652 loc.col_idx = MONO_DECL_SECURITY_PARENT;
3655 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
3658 /* Find the first entry by searching backwards */
3659 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
3667 mono_backtrace (int limit)
3672 backtrace (array, limit);
3673 names = backtrace_symbols (array, limit);
3674 for (i =0; i < limit; ++i) {
3675 g_print ("\t%s\n", names [i]);
3682 /*#define __alignof__(a) sizeof(a)*/
3683 #define __alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
3688 * @t: the type to return the size of
3690 * Returns: the number of bytes required to hold an instance of this
3694 mono_type_size (MonoType *t, int *align)
3701 *align = __alignof__(gpointer);
3702 return sizeof (gpointer);
3706 case MONO_TYPE_VOID:
3709 case MONO_TYPE_BOOLEAN:
3710 *align = __alignof__(gint8);
3714 *align = __alignof__(gint8);
3716 case MONO_TYPE_CHAR:
3719 *align = __alignof__(gint16);
3723 *align = __alignof__(gint32);
3726 *align = __alignof__(float);
3730 *align = __alignof__(gint64);
3733 *align = __alignof__(double);
3737 *align = __alignof__(gpointer);
3738 return sizeof (gpointer);
3739 case MONO_TYPE_STRING:
3740 *align = __alignof__(gpointer);
3741 return sizeof (gpointer);
3742 case MONO_TYPE_OBJECT:
3743 *align = __alignof__(gpointer);
3744 return sizeof (gpointer);
3745 case MONO_TYPE_VALUETYPE: {
3746 if (t->data.klass->enumtype)
3747 return mono_type_size (t->data.klass->enum_basetype, align);
3749 return mono_class_value_size (t->data.klass, (guint32*)align);
3751 case MONO_TYPE_CLASS:
3752 case MONO_TYPE_SZARRAY:
3754 case MONO_TYPE_FNPTR:
3755 case MONO_TYPE_ARRAY:
3756 *align = __alignof__(gpointer);
3757 return sizeof (gpointer);
3758 case MONO_TYPE_TYPEDBYREF:
3759 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
3760 case MONO_TYPE_GENERICINST: {
3761 MonoGenericClass *gclass = t->data.generic_class;
3762 MonoClass *container_class = gclass->container_class;
3764 // g_assert (!gclass->inst->is_open);
3766 if (container_class->valuetype) {
3767 if (container_class->enumtype)
3768 return mono_type_size (container_class->enum_basetype, align);
3770 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3772 *align = __alignof__(gpointer);
3773 return sizeof (gpointer);
3777 case MONO_TYPE_MVAR:
3778 /* FIXME: Martin, this is wrong. */
3779 *align = __alignof__(gpointer);
3780 return sizeof (gpointer);
3782 g_error ("mono_type_size: type 0x%02x unknown", t->type);
3788 * mono_type_stack_size:
3789 * @t: the type to return the size it uses on the stack
3791 * Returns: the number of bytes required to hold an instance of this
3792 * type on the runtime stack
3795 mono_type_stack_size (MonoType *t, int *align)
3797 return mono_type_stack_size_internal (t, align, FALSE);
3801 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
3804 #if SIZEOF_VOID_P == SIZEOF_REGISTER
3805 int stack_slot_size = sizeof (gpointer);
3806 int stack_slot_align = __alignof__ (gpointer);
3807 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
3808 int stack_slot_size = SIZEOF_REGISTER;
3809 int stack_slot_align = SIZEOF_REGISTER;
3812 g_assert (t != NULL);
3818 *align = stack_slot_align;
3819 return stack_slot_size;
3823 case MONO_TYPE_BOOLEAN:
3824 case MONO_TYPE_CHAR:
3833 case MONO_TYPE_STRING:
3834 case MONO_TYPE_OBJECT:
3835 case MONO_TYPE_CLASS:
3836 case MONO_TYPE_SZARRAY:
3838 case MONO_TYPE_FNPTR:
3839 case MONO_TYPE_ARRAY:
3840 *align = stack_slot_align;
3841 return stack_slot_size;
3843 case MONO_TYPE_MVAR:
3844 g_assert (allow_open);
3845 *align = stack_slot_align;
3846 return stack_slot_size;
3847 case MONO_TYPE_TYPEDBYREF:
3848 *align = stack_slot_align;
3849 return stack_slot_size * 3;
3851 *align = __alignof__(float);
3852 return sizeof (float);
3855 *align = __alignof__(gint64);
3856 return sizeof (gint64);
3858 *align = __alignof__(double);
3859 return sizeof (double);
3860 case MONO_TYPE_VALUETYPE: {
3863 if (t->data.klass->enumtype)
3864 return mono_type_stack_size_internal (t->data.klass->enum_basetype, align, allow_open);
3866 size = mono_class_value_size (t->data.klass, (guint32*)align);
3868 *align = *align + stack_slot_align - 1;
3869 *align &= ~(stack_slot_align - 1);
3871 size += stack_slot_size - 1;
3872 size &= ~(stack_slot_size - 1);
3877 case MONO_TYPE_GENERICINST: {
3878 MonoGenericClass *gclass = t->data.generic_class;
3879 MonoClass *container_class = gclass->container_class;
3882 g_assert (!gclass->context.class_inst->is_open);
3884 if (container_class->valuetype) {
3885 if (container_class->enumtype)
3886 return mono_type_stack_size_internal (container_class->enum_basetype, align, allow_open);
3888 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3890 *align = *align + stack_slot_align - 1;
3891 *align &= ~(stack_slot_align - 1);
3893 size += stack_slot_size - 1;
3894 size &= ~(stack_slot_size - 1);
3899 *align = stack_slot_align;
3900 return stack_slot_size;
3904 g_error ("type 0x%02x unknown", t->type);
3910 mono_type_generic_inst_is_valuetype (MonoType *type)
3912 g_assert (type->type == MONO_TYPE_GENERICINST);
3913 return type->data.generic_class->container_class->valuetype;
3917 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
3919 return gclass->container_class->valuetype;
3923 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
3925 MonoGenericInst *i1 = g1->context.class_inst;
3926 MonoGenericInst *i2 = g2->context.class_inst;
3928 if (g1->is_dynamic != g2->is_dynamic)
3930 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
3932 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
3934 return g1->is_tb_open == g2->is_tb_open;
3938 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
3940 MonoGenericInst *i1 = g1->context.class_inst;
3941 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
3943 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
3945 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
3947 return !g1->is_tb_open;
3951 mono_metadata_generic_context_hash (const MonoGenericContext *context)
3953 /* FIXME: check if this seed is good enough */
3954 guint hash = 0xc01dfee7;
3955 if (context->class_inst)
3956 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
3957 if (context->method_inst)
3958 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
3963 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
3965 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
3969 * mono_metadata_type_hash:
3972 * Computes an hash value for @t1 to be used in GHashTable.
3975 mono_metadata_type_hash (MonoType *t1)
3977 guint hash = t1->type;
3979 hash |= t1->byref << 6; /* do not collide with t1->type values */
3981 case MONO_TYPE_VALUETYPE:
3982 case MONO_TYPE_CLASS:
3983 case MONO_TYPE_SZARRAY:
3984 /* check if the distribution is good enough */
3985 return ((hash << 5) - hash) ^ g_str_hash (t1->data.klass->name);
3987 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
3988 case MONO_TYPE_ARRAY:
3989 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
3990 case MONO_TYPE_GENERICINST:
3991 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
3997 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4001 if (p1->num != p2->num)
4005 * We have to compare the image as well because if we didn't,
4006 * the generic_inst_cache lookup wouldn't care about the image
4007 * of generic params, so what could happen is that a generic
4008 * inst with params from image A is put into the cache, then
4009 * image B gets that generic inst from the cache, image A is
4010 * unloaded, so the inst is deleted, but image B still retains
4013 * The AOT runtime doesn't set the image when it's decoding
4014 * types, so we only compare it when the owner is NULL.
4016 if (p1->owner == p2->owner && (p1->owner || p1->image == p2->image))
4020 * If `signature_only' is true, we're comparing two (method) signatures.
4021 * In this case, the owner of two type parameters doesn't need to match.
4024 return signature_only;
4028 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4032 if (c1->generic_class && c2->generic_class)
4033 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4034 if (c1->generic_class && c2->generic_container)
4035 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4036 if (c1->generic_container && c2->generic_class)
4037 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4038 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4039 return mono_metadata_generic_param_equal (
4040 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4041 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4042 return mono_metadata_generic_param_equal (
4043 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4044 if (signature_only &&
4045 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4046 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4051 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4053 gpointer iter1 = 0, iter2 = 0;
4057 if (s1->call_convention != s2->call_convention)
4059 if (s1->sentinelpos != s2->sentinelpos)
4061 if (s1->hasthis != s2->hasthis)
4063 if (s1->explicit_this != s2->explicit_this)
4065 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4067 if (s1->param_count != s2->param_count)
4071 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4072 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4074 if (t1 == NULL || t2 == NULL)
4076 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4082 * mono_metadata_type_equal:
4086 * Determine if @t1 and @t2 represent the same type.
4087 * Returns: #TRUE if @t1 and @t2 are equal.
4090 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4092 if (t1->type != t2->type || t1->byref != t2->byref)
4096 case MONO_TYPE_VOID:
4097 case MONO_TYPE_BOOLEAN:
4098 case MONO_TYPE_CHAR:
4109 case MONO_TYPE_STRING:
4112 case MONO_TYPE_OBJECT:
4113 case MONO_TYPE_TYPEDBYREF:
4115 case MONO_TYPE_VALUETYPE:
4116 case MONO_TYPE_CLASS:
4117 case MONO_TYPE_SZARRAY:
4118 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4120 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4121 case MONO_TYPE_ARRAY:
4122 if (t1->data.array->rank != t2->data.array->rank)
4124 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4125 case MONO_TYPE_GENERICINST:
4126 return _mono_metadata_generic_class_equal (
4127 t1->data.generic_class, t2->data.generic_class, signature_only);
4129 return mono_metadata_generic_param_equal (
4130 t1->data.generic_param, t2->data.generic_param, signature_only);
4131 case MONO_TYPE_MVAR:
4132 return mono_metadata_generic_param_equal (
4133 t1->data.generic_param, t2->data.generic_param, signature_only);
4134 case MONO_TYPE_FNPTR:
4135 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4137 g_error ("implement type compare for %0x!", t1->type);
4145 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
4147 return do_mono_metadata_type_equal (t1, t2, FALSE);
4151 * mono_metadata_type_equal_full:
4154 * @signature_only: if signature only comparison should be made
4156 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
4157 * behaves the same way as mono_metadata_type_equal.
4158 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
4159 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
4162 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
4164 return do_mono_metadata_type_equal (t1, t2, signature_only);
4168 * mono_metadata_signature_equal:
4169 * @sig1: a signature
4170 * @sig2: another signature
4172 * Determine if @sig1 and @sig2 represent the same signature, with the
4173 * same number of arguments and the same types.
4174 * Returns: #TRUE if @sig1 and @sig2 are equal.
4177 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4181 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4184 if (sig1->generic_param_count != sig2->generic_param_count)
4188 * We're just comparing the signatures of two methods here:
4190 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4191 * U and V are equal here.
4193 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4196 for (i = 0; i < sig1->param_count; i++) {
4197 MonoType *p1 = sig1->params[i];
4198 MonoType *p2 = sig2->params[i];
4200 /* if (p1->attrs != p2->attrs)
4203 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
4207 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4213 * mono_metadata_type_dup:
4214 * @mp: mempool to use
4215 * @original: type to duplicate
4217 * Returns: copy of type allocated from mempool (or from the heap, if @mp is null).
4220 mono_metadata_type_dup (MonoMemPool *mp, const MonoType *o)
4223 int sizeof_o = sizeof (MonoType);
4225 sizeof_o += (o->num_mods - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod);
4227 mono_loader_lock ();
4228 r = mp ? mono_mempool_alloc0 (mp, sizeof_o) : g_malloc (sizeof_o);
4229 mono_loader_unlock ();
4231 memcpy (r, o, sizeof_o);
4233 if (o->type == MONO_TYPE_PTR) {
4234 r->data.type = mono_metadata_type_dup (mp, o->data.type);
4235 } else if (o->type == MONO_TYPE_ARRAY) {
4236 r->data.array = mono_dup_array_type (mp, o->data.array);
4237 } else if (o->type == MONO_TYPE_FNPTR) {
4238 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
4239 r->data.method = mono_metadata_signature_deep_dup (mp, o->data.method);
4245 mono_signature_hash (MonoMethodSignature *sig)
4247 guint i, res = sig->ret->type;
4249 for (i = 0; i < sig->param_count; i++)
4250 res = (res << 5) - res + mono_type_hash (sig->params[i]);
4256 * mono_metadata_encode_value:
4257 * @value: value to encode
4258 * @buf: buffer where to write the compressed representation
4259 * @endbuf: pointer updated to point at the end of the encoded output
4261 * Encodes the value @value in the compressed representation used
4262 * in metadata and stores the result in @buf. @buf needs to be big
4263 * enough to hold the data (4 bytes).
4266 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
4272 else if (value < 0x4000) {
4273 p [0] = 0x80 | (value >> 8);
4274 p [1] = value & 0xff;
4277 p [0] = (value >> 24) | 0xc0;
4278 p [1] = (value >> 16) & 0xff;
4279 p [2] = (value >> 8) & 0xff;
4280 p [3] = value & 0xff;
4288 * mono_metadata_field_info:
4289 * @meta: the Image the field is defined in
4290 * @index: the index in the field table representing the field
4291 * @offset: a pointer to an integer where to store the offset that
4292 * may have been specified for the field in a FieldLayout table
4293 * @rva: a pointer to the RVA of the field data in the image that
4294 * may have been defined in a FieldRVA table
4295 * @marshal_spec: a pointer to the marshal spec that may have been
4296 * defined for the field in a FieldMarshal table.
4298 * Gather info for field @index that may have been defined in the FieldLayout,
4299 * FieldRVA and FieldMarshal tables.
4300 * Either of offset, rva and marshal_spec can be NULL if you're not interested
4304 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4305 MonoMarshalSpec **marshal_spec)
4307 mono_metadata_field_info_with_mempool (NULL, meta, index, offset, rva, marshal_spec);
4311 mono_metadata_field_info_with_mempool (MonoMemPool *mempool, MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4312 MonoMarshalSpec **marshal_spec)
4314 MonoTableInfo *tdef;
4317 loc.idx = index + 1;
4318 if (meta->uncompressed_metadata)
4319 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4322 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
4324 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
4327 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4328 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
4330 *offset = (guint32)-1;
4334 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
4336 loc.col_idx = MONO_FIELD_RVA_FIELD;
4339 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4341 * LAMESPEC: There is no signature, no nothing, just the raw data.
4343 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
4351 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
4352 *marshal_spec = mono_metadata_parse_marshal_spec_with_mempool (mempool, p);
4359 * mono_metadata_get_constant_index:
4360 * @meta: the Image the field is defined in
4361 * @index: the token that may have a row defined in the constants table
4362 * @hint: possible position for the row
4364 * @token must be a FieldDef, ParamDef or PropertyDef token.
4366 * Returns: the index into the Constants table or 0 if not found.
4369 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4371 MonoTableInfo *tdef;
4373 guint32 index = mono_metadata_token_index (token);
4375 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4376 index <<= MONO_HASCONSTANT_BITS;
4377 switch (mono_metadata_token_table (token)) {
4378 case MONO_TABLE_FIELD:
4379 index |= MONO_HASCONSTANT_FIEDDEF;
4381 case MONO_TABLE_PARAM:
4382 index |= MONO_HASCONSTANT_PARAM;
4384 case MONO_TABLE_PROPERTY:
4385 index |= MONO_HASCONSTANT_PROPERTY;
4388 g_warning ("Not a valid token for the constant table: 0x%08x", token);
4392 loc.col_idx = MONO_CONSTANT_PARENT;
4395 /* FIXME: Index translation */
4397 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
4400 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4401 return loc.result + 1;
4407 * mono_metadata_events_from_typedef:
4408 * @meta: metadata context
4409 * @index: 0-based index (in the TypeDef table) describing a type
4411 * Returns: the 0-based index in the Event table for the events in the
4412 * type. The last event that belongs to the type (plus 1) is stored
4413 * in the @end_idx pointer.
4416 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4420 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
4428 loc.col_idx = MONO_EVENT_MAP_PARENT;
4429 loc.idx = index + 1;
4431 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4434 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
4435 if (loc.result + 1 < tdef->rows) {
4436 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
4438 end = meta->tables [MONO_TABLE_EVENT].rows;
4446 * mono_metadata_methods_from_event:
4447 * @meta: metadata context
4448 * @index: 0-based index (in the Event table) describing a event
4450 * Returns: the 0-based index in the MethodDef table for the methods in the
4451 * event. The last method that belongs to the event (plus 1) is stored
4452 * in the @end_idx pointer.
4455 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
4459 guint32 cols [MONO_METHOD_SEMA_SIZE];
4460 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4466 if (meta->uncompressed_metadata)
4467 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
4470 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4471 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
4473 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4478 * We may end up in the middle of the rows...
4481 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4487 while (end < msemt->rows) {
4488 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4489 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4498 * mono_metadata_properties_from_typedef:
4499 * @meta: metadata context
4500 * @index: 0-based index (in the TypeDef table) describing a type
4502 * Returns: the 0-based index in the Property table for the properties in the
4503 * type. The last property that belongs to the type (plus 1) is stored
4504 * in the @end_idx pointer.
4507 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4511 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
4519 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
4520 loc.idx = index + 1;
4522 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4525 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
4526 if (loc.result + 1 < tdef->rows) {
4527 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
4529 end = meta->tables [MONO_TABLE_PROPERTY].rows;
4537 * mono_metadata_methods_from_property:
4538 * @meta: metadata context
4539 * @index: 0-based index (in the PropertyDef table) describing a property
4541 * Returns: the 0-based index in the MethodDef table for the methods in the
4542 * property. The last method that belongs to the property (plus 1) is stored
4543 * in the @end_idx pointer.
4546 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
4550 guint32 cols [MONO_METHOD_SEMA_SIZE];
4551 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4557 if (meta->uncompressed_metadata)
4558 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
4561 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4562 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
4564 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4569 * We may end up in the middle of the rows...
4572 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4578 while (end < msemt->rows) {
4579 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4580 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4589 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
4592 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
4597 /* No index translation seems to be needed */
4600 loc.col_idx = MONO_IMPLMAP_MEMBER;
4601 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
4603 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4606 return loc.result + 1;
4610 * @image: context where the image is created
4611 * @type_spec: typespec token
4613 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
4617 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
4619 guint32 idx = mono_metadata_token_index (type_spec);
4621 guint32 cols [MONO_TYPESPEC_SIZE];
4624 MonoType *type, *type2;
4626 mono_loader_lock ();
4628 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4630 mono_loader_unlock ();
4634 t = &image->tables [MONO_TABLE_TYPESPEC];
4636 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
4637 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
4638 len = mono_metadata_decode_value (ptr, &ptr);
4640 type = mono_image_alloc0 (image, sizeof (MonoType));
4642 if (*ptr == MONO_TYPE_BYREF) {
4647 if (!do_mono_metadata_parse_type (type, image, NULL, ptr, &ptr)) {
4648 mono_loader_unlock ();
4652 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4655 mono_loader_unlock ();
4659 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type);
4661 mono_loader_unlock ();
4668 mono_mempool_strndup (MonoMemPool *mp, const char *data, guint len)
4672 return g_strndup (data, len);
4673 res = mono_mempool_alloc (mp, len + 1);
4674 memcpy (res, data, len);
4680 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
4682 return mono_metadata_parse_marshal_spec_with_mempool (NULL, ptr);
4686 mono_metadata_parse_marshal_spec_with_mempool (MonoMemPool *mempool, const char *ptr)
4688 MonoMarshalSpec *res;
4690 const char *start = ptr;
4692 /* fixme: this is incomplete, but I cant find more infos in the specs */
4695 res = mono_mempool_alloc0 (mempool, sizeof (MonoMarshalSpec));
4697 res = g_new0 (MonoMarshalSpec, 1);
4699 len = mono_metadata_decode_value (ptr, &ptr);
4700 res->native = *ptr++;
4702 if (res->native == MONO_NATIVE_LPARRAY) {
4703 res->data.array_data.param_num = -1;
4704 res->data.array_data.num_elem = -1;
4705 res->data.array_data.elem_mult = -1;
4707 if (ptr - start <= len)
4708 res->data.array_data.elem_type = *ptr++;
4709 if (ptr - start <= len)
4710 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
4711 if (ptr - start <= len)
4712 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4713 if (ptr - start <= len) {
4715 * LAMESPEC: Older spec versions say this parameter comes before
4716 * num_elem. Never spec versions don't talk about elem_mult at
4717 * all, but csc still emits it, and it is used to distinguish
4718 * between param_num being 0, and param_num being omitted.
4719 * So if (param_num == 0) && (num_elem > 0), then
4720 * elem_mult == 0 -> the array size is num_elem
4721 * elem_mult == 1 -> the array size is @param_num + num_elem
4723 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
4727 if (res->native == MONO_NATIVE_BYVALTSTR) {
4728 if (ptr - start <= len)
4729 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4732 if (res->native == MONO_NATIVE_BYVALARRAY) {
4733 if (ptr - start <= len)
4734 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4737 if (res->native == MONO_NATIVE_CUSTOM) {
4738 /* skip unused type guid */
4739 len = mono_metadata_decode_value (ptr, &ptr);
4741 /* skip unused native type name */
4742 len = mono_metadata_decode_value (ptr, &ptr);
4744 /* read custom marshaler type name */
4745 len = mono_metadata_decode_value (ptr, &ptr);
4746 res->data.custom_data.custom_name = mono_mempool_strndup (mempool, ptr, len);
4748 /* read cookie string */
4749 len = mono_metadata_decode_value (ptr, &ptr);
4750 res->data.custom_data.cookie = mono_mempool_strndup (mempool, ptr, len);
4753 if (res->native == MONO_NATIVE_SAFEARRAY) {
4754 res->data.safearray_data.elem_type = 0;
4755 res->data.safearray_data.num_elem = 0;
4756 if (ptr - start <= len)
4757 res->data.safearray_data.elem_type = *ptr++;
4758 if (ptr - start <= len)
4759 res->data.safearray_data.num_elem = *ptr++;
4765 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
4767 if (spec->native == MONO_NATIVE_CUSTOM) {
4768 g_free (spec->data.custom_data.custom_name);
4769 g_free (spec->data.custom_data.cookie);
4775 * mono_type_to_unmanaged:
4777 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
4778 * describing the underlying native reprensetation of the type.
4780 * In addition the value pointed by
4781 * "conv" will contain the kind of marshalling required for this
4782 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
4785 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
4786 gboolean unicode, MonoMarshalConv *conv)
4788 MonoMarshalConv dummy_conv;
4794 *conv = MONO_MARSHAL_CONV_NONE;
4797 return MONO_NATIVE_UINT;
4801 case MONO_TYPE_BOOLEAN:
4803 switch (mspec->native) {
4804 case MONO_NATIVE_VARIANTBOOL:
4805 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
4806 return MONO_NATIVE_VARIANTBOOL;
4807 case MONO_NATIVE_BOOLEAN:
4808 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4809 return MONO_NATIVE_BOOLEAN;
4810 case MONO_NATIVE_I1:
4811 case MONO_NATIVE_U1:
4812 return mspec->native;
4814 g_error ("cant marshal bool to native type %02x", mspec->native);
4817 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4818 return MONO_NATIVE_BOOLEAN;
4819 case MONO_TYPE_CHAR: return MONO_NATIVE_U2;
4820 case MONO_TYPE_I1: return MONO_NATIVE_I1;
4821 case MONO_TYPE_U1: return MONO_NATIVE_U1;
4822 case MONO_TYPE_I2: return MONO_NATIVE_I2;
4823 case MONO_TYPE_U2: return MONO_NATIVE_U2;
4824 case MONO_TYPE_I4: return MONO_NATIVE_I4;
4825 case MONO_TYPE_U4: return MONO_NATIVE_U4;
4826 case MONO_TYPE_I8: return MONO_NATIVE_I8;
4827 case MONO_TYPE_U8: return MONO_NATIVE_U8;
4828 case MONO_TYPE_R4: return MONO_NATIVE_R4;
4829 case MONO_TYPE_R8: return MONO_NATIVE_R8;
4830 case MONO_TYPE_STRING:
4832 switch (mspec->native) {
4833 case MONO_NATIVE_BSTR:
4834 *conv = MONO_MARSHAL_CONV_STR_BSTR;
4835 return MONO_NATIVE_BSTR;
4836 case MONO_NATIVE_LPSTR:
4837 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4838 return MONO_NATIVE_LPSTR;
4839 case MONO_NATIVE_LPWSTR:
4840 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4841 return MONO_NATIVE_LPWSTR;
4842 case MONO_NATIVE_LPTSTR:
4843 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
4844 return MONO_NATIVE_LPTSTR;
4845 case MONO_NATIVE_ANSIBSTR:
4846 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
4847 return MONO_NATIVE_ANSIBSTR;
4848 case MONO_NATIVE_TBSTR:
4849 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
4850 return MONO_NATIVE_TBSTR;
4851 case MONO_NATIVE_BYVALTSTR:
4853 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
4855 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
4856 return MONO_NATIVE_BYVALTSTR;
4858 g_error ("Can not marshal string to native type '%02x': Invalid managed/unmanaged type combination (String fields must be paired with LPStr, LPWStr, BStr or ByValTStr).", mspec->native);
4862 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4863 return MONO_NATIVE_LPWSTR;
4866 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4867 return MONO_NATIVE_LPSTR;
4869 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
4870 case MONO_TYPE_VALUETYPE: /*FIXME*/
4871 if (type->data.klass->enumtype) {
4872 t = type->data.klass->enum_basetype->type;
4875 if (type->data.klass == mono_defaults.handleref_class){
4876 *conv = MONO_MARSHAL_CONV_HANDLEREF;
4877 return MONO_NATIVE_INT;
4879 return MONO_NATIVE_STRUCT;
4880 case MONO_TYPE_SZARRAY:
4881 case MONO_TYPE_ARRAY:
4883 switch (mspec->native) {
4884 case MONO_NATIVE_BYVALARRAY:
4885 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
4886 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
4888 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
4889 return MONO_NATIVE_BYVALARRAY;
4890 case MONO_NATIVE_SAFEARRAY:
4891 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
4892 return MONO_NATIVE_SAFEARRAY;
4893 case MONO_NATIVE_LPARRAY:
4894 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4895 return MONO_NATIVE_LPARRAY;
4897 g_error ("cant marshal array as native type %02x", mspec->native);
4901 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4902 return MONO_NATIVE_LPARRAY;
4903 case MONO_TYPE_I: return MONO_NATIVE_INT;
4904 case MONO_TYPE_U: return MONO_NATIVE_UINT;
4905 case MONO_TYPE_CLASS:
4906 case MONO_TYPE_OBJECT: {
4907 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
4909 switch (mspec->native) {
4910 case MONO_NATIVE_STRUCT:
4911 return MONO_NATIVE_STRUCT;
4912 case MONO_NATIVE_CUSTOM:
4913 return MONO_NATIVE_CUSTOM;
4914 case MONO_NATIVE_INTERFACE:
4915 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
4916 return MONO_NATIVE_INTERFACE;
4917 case MONO_NATIVE_IDISPATCH:
4918 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
4919 return MONO_NATIVE_IDISPATCH;
4920 case MONO_NATIVE_IUNKNOWN:
4921 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
4922 return MONO_NATIVE_IUNKNOWN;
4923 case MONO_NATIVE_FUNC:
4924 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4925 type->data.klass == mono_defaults.delegate_class ||
4926 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4927 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4928 return MONO_NATIVE_FUNC;
4932 g_error ("cant marshal object as native type %02x", mspec->native);
4935 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4936 type->data.klass == mono_defaults.delegate_class ||
4937 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4938 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4939 return MONO_NATIVE_FUNC;
4941 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
4942 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
4943 return MONO_NATIVE_INT;
4945 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
4946 return MONO_NATIVE_STRUCT;
4948 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
4949 case MONO_TYPE_GENERICINST:
4950 type = &type->data.generic_class->container_class->byval_arg;
4953 case MONO_TYPE_TYPEDBYREF:
4955 g_error ("type 0x%02x not handled in marshal", t);
4957 return MONO_NATIVE_MAX;
4961 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
4964 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
4970 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
4971 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
4973 /* FIXME: Index translation */
4975 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4978 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
4982 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
4984 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
4986 switch (tok & MONO_METHODDEFORREF_MASK) {
4987 case MONO_METHODDEFORREF_METHODDEF:
4988 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
4989 case MONO_METHODDEFORREF_METHODREF:
4990 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
4992 g_assert_not_reached ();
4997 * mono_class_get_overrides_full:
4999 * Return the method overrides belonging to class @type_token in @overrides, and
5000 * the number of overrides in @num_overrides.
5002 * Returns: TRUE on success, FALSE on failure.
5005 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5006 MonoGenericContext *generic_context)
5009 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5012 guint32 cols [MONO_METHODIMPL_SIZE];
5013 MonoMethod **result;
5024 loc.col_idx = MONO_METHODIMPL_CLASS;
5025 loc.idx = mono_metadata_token_index (type_token);
5027 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5033 * We may end up in the middle of the rows...
5036 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5041 while (end < tdef->rows) {
5042 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5048 result = g_new (MonoMethod*, num * 2);
5049 for (i = 0; i < num; ++i) {
5052 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5053 method = method_from_method_def_or_ref (
5054 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
5057 result [i * 2] = method;
5058 method = method_from_method_def_or_ref (
5059 image, cols [MONO_METHODIMPL_BODY], generic_context);
5062 result [i * 2 + 1] = method;
5065 *overrides = result;
5067 *num_overrides = num;
5072 * mono_guid_to_string:
5074 * Converts a 16 byte Microsoft GUID to the standard string representation.
5077 mono_guid_to_string (const guint8 *guid)
5079 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5080 guid[3], guid[2], guid[1], guid[0],
5084 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
5088 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
5090 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
5091 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
5092 guint32 i, token, found;
5093 MonoClass *klass, **res;
5094 GList *cons = NULL, *tmp;
5095 MonoGenericContext *context = &container->context;
5097 *constraints = NULL;
5099 for (i = 0; i < tdef->rows; ++i) {
5100 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
5101 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
5102 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
5103 klass = mono_class_get_full (image, token, context);
5104 cons = g_list_append (cons, klass);
5107 /* contiguous list finished */
5114 res = g_new0 (MonoClass*, found + 1);
5115 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
5116 res [i] = tmp->data;
5124 * mono_metadata_get_generic_param_row:
5127 * @token: TypeOrMethodDef token, owner for GenericParam
5128 * @owner: coded token, set on return
5130 * Returns: 1-based row-id in the GenericParam table whose
5131 * owner is @token. 0 if not found.
5134 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
5136 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5143 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
5144 *owner = MONO_TYPEORMETHOD_TYPE;
5145 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5146 *owner = MONO_TYPEORMETHOD_METHOD;
5148 g_error ("wrong token %x to get_generic_param_row", token);
5151 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
5154 loc.col_idx = MONO_GENERICPARAM_OWNER;
5157 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5160 /* Find the first entry by searching backwards */
5161 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
5164 return loc.result + 1;
5168 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
5171 return mono_metadata_get_generic_param_row (image, token, &owner);
5175 * mono_metadata_load_generic_param_constraints:
5177 * Load the generic parameter constraints for the newly created generic type or method
5178 * represented by @token and @container. The @container is the new container which has
5179 * been returned by a call to mono_metadata_load_generic_params() with this @token.
5182 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
5183 MonoGenericContainer *container)
5185 guint32 start_row, i, owner;
5186 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
5188 for (i = 0; i < container->type_argc; i++)
5189 get_constraints (image, start_row + i, &container->type_params [i].constraints, container);
5193 * mono_metadata_load_generic_params:
5195 * Load the type parameters from the type or method definition @token.
5197 * Use this method after parsing a type or method definition to figure out whether it's a generic
5198 * type / method. When parsing a method definition, @parent_container points to the generic container
5199 * of the current class, if any.
5201 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
5202 * creating the type.
5204 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
5206 * LOCKING: Acquires the loader lock
5209 MonoGenericContainer *
5210 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
5212 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5213 guint32 cols [MONO_GENERICPARAM_SIZE];
5214 guint32 i, owner = 0, n;
5215 MonoGenericContainer *container;
5216 MonoGenericParam *params;
5217 MonoGenericContext *context;
5219 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
5221 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5224 container = mono_image_alloc0_lock (image, sizeof (MonoGenericContainer));
5227 params = g_realloc (params, sizeof (MonoGenericParam) * n);
5228 memset (¶ms [n - 1], 0, sizeof (MonoGenericParam));
5229 params [n - 1].owner = container;
5230 params [n - 1].flags = cols [MONO_GENERICPARAM_FLAGS];
5231 params [n - 1].num = cols [MONO_GENERICPARAM_NUMBER];
5232 params [n - 1].name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
5233 if (++i > tdef->rows)
5235 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5236 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
5238 container->type_argc = n;
5239 container->type_params = mono_image_alloc0_lock (image, sizeof (MonoGenericParam) * n);
5240 memcpy (container->type_params, params, sizeof (MonoGenericParam) * n);
5242 container->parent = parent_container;
5244 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5245 container->is_method = 1;
5247 g_assert (container->parent == NULL || container->is_method);
5249 context = &container->context;
5250 if (container->is_method) {
5251 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
5252 context->method_inst = mono_get_shared_generic_inst (container);
5254 context->class_inst = mono_get_shared_generic_inst (container);
5261 mono_get_shared_generic_inst (MonoGenericContainer *container)
5263 MonoType **type_argv;
5265 MonoGenericInst *nginst;
5268 type_argv = g_new0 (MonoType *, container->type_argc);
5269 helper = g_new0 (MonoType, container->type_argc);
5271 for (i = 0; i < container->type_argc; i++) {
5272 MonoType *t = &helper [i];
5274 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5275 t->data.generic_param = &container->type_params [i];
5280 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
5289 mono_type_is_byref (MonoType *type)
5295 mono_type_get_type (MonoType *type)
5300 /* For MONO_TYPE_FNPTR */
5301 MonoMethodSignature*
5302 mono_type_get_signature (MonoType *type)
5304 return type->data.method;
5307 /* For MONO_TYPE_CLASS, VALUETYPE */
5309 mono_type_get_class (MonoType *type)
5311 return type->data.klass;
5314 /* For MONO_TYPE_ARRAY */
5316 mono_type_get_array_type (MonoType *type)
5318 return type->data.array;
5321 /* For MONO_TYPE_PTR */
5323 mono_type_get_ptr_type (MonoType *type)
5325 return type->data.type;
5329 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
5331 /* FIXME: implement */
5336 mono_signature_get_return_type (MonoMethodSignature *sig)
5342 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
5348 /* start from the first */
5349 if (sig->param_count) {
5350 *iter = &sig->params [0];
5351 return sig->params [0];
5359 if (type < &sig->params [sig->param_count]) {
5367 mono_signature_get_param_count (MonoMethodSignature *sig)
5369 return sig->param_count;
5373 mono_signature_get_call_conv (MonoMethodSignature *sig)
5375 return sig->call_convention;
5379 mono_signature_vararg_start (MonoMethodSignature *sig)
5381 return sig->sentinelpos;
5385 mono_signature_is_instance (MonoMethodSignature *sig)
5387 return sig->hasthis;
5391 mono_signature_explicit_this (MonoMethodSignature *sig)
5393 return sig->explicit_this;
5396 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
5398 mono_aligned_addr_hash (gconstpointer ptr)
5400 return GPOINTER_TO_UINT (ptr) >> 3;
5404 * If @field belongs to an inflated generic class, return the corresponding field of the
5405 * generic type definition class.
5408 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
5413 if (!field->parent->generic_class)
5416 gtd = field->parent->generic_class->container_class;
5417 offset = field - field->parent->fields;
5418 return gtd->fields + offset;
5422 * If @event belongs to an inflated generic class, return the corresponding event of the
5423 * generic type definition class.
5426 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
5431 if (!event->parent->generic_class)
5434 gtd = event->parent->generic_class->container_class;
5435 offset = event - event->parent->events;
5436 return gtd->events + offset;
5440 * If @property belongs to an inflated generic class, return the corresponding property of the
5441 * generic type definition class.
5444 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
5449 if (!property->parent->generic_class)
5452 gtd = property->parent->generic_class->container_class;
5453 offset = property - property->parent->properties;
5454 return gtd->properties + offset;