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.
17 #include "tabledefs.h"
18 #include "mono-endian.h"
20 #include "tokentype.h"
21 #include "metadata-internals.h"
22 #include "class-internals.h"
25 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
26 const char *ptr, const char **rptr);
28 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
29 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
30 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
31 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
32 gboolean signature_only);
33 static void free_generic_inst (MonoGenericInst *ginst);
34 static void free_generic_class (MonoGenericClass *ginst);
35 static void free_inflated_method (MonoMethodInflated *method);
38 * This enumeration is used to describe the data types in the metadata
49 /* Index into Blob heap */
52 /* Index into String heap */
58 /* Pointer into a table */
61 /* HasConstant:Parent pointer (Param, Field or Property) */
64 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
67 /* CustomAttributeType encoded index */
70 /* HasDeclSecurity index: TypeDef Method or Assembly */
73 /* Implementation coded index: File, Export AssemblyRef */
76 /* HasFieldMarshal coded index: Field or Param table */
79 /* MemberForwardedIndex: Field or Method */
82 /* TypeDefOrRef coded index: typedef, typeref, typespec */
85 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
88 /* MethodDefOrRef coded index: Method or Member Ref table */
91 /* HasSemantic coded index: Event or Property */
94 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
98 const static unsigned char TableSchemas [] = {
99 #define ASSEMBLY_SCHEMA_OFFSET 0
100 MONO_MT_UINT32, /* "HashId" }, */
101 MONO_MT_UINT16, /* "Major" }, */
102 MONO_MT_UINT16, /* "Minor" }, */
103 MONO_MT_UINT16, /* "BuildNumber" }, */
104 MONO_MT_UINT16, /* "RevisionNumber" }, */
105 MONO_MT_UINT32, /* "Flags" }, */
106 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
107 MONO_MT_STRING_IDX, /* "Name" }, */
108 MONO_MT_STRING_IDX, /* "Culture" }, */
111 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
112 MONO_MT_UINT32, /* "OSPlatformID" }, */
113 MONO_MT_UINT32, /* "OSMajor" }, */
114 MONO_MT_UINT32, /* "OSMinor" }, */
117 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
118 MONO_MT_UINT32, /* "Processor" }, */
121 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
122 MONO_MT_UINT16, /* "Major" }, */
123 MONO_MT_UINT16, /* "Minor" }, */
124 MONO_MT_UINT16, /* "Build" }, */
125 MONO_MT_UINT16, /* "Revision" }, */
126 MONO_MT_UINT32, /* "Flags" }, */
127 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
128 MONO_MT_STRING_IDX, /* "Name" }, */
129 MONO_MT_STRING_IDX, /* "Culture" }, */
130 MONO_MT_BLOB_IDX, /* "HashValue" }, */
133 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
134 MONO_MT_UINT32, /* "OSPlatformID" }, */
135 MONO_MT_UINT32, /* "OSMajorVersion" }, */
136 MONO_MT_UINT32, /* "OSMinorVersion" }, */
137 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
140 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
141 MONO_MT_UINT32, /* "Processor" }, */
142 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
145 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
146 MONO_MT_UINT16, /* "PackingSize" }, */
147 MONO_MT_UINT32, /* "ClassSize" }, */
148 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
151 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
152 MONO_MT_UINT8, /* "Type" }, */
153 MONO_MT_UINT8, /* "PaddingZero" }, */
154 MONO_MT_CONST_IDX, /* "Parent" }, */
155 MONO_MT_BLOB_IDX, /* "Value" }, */
158 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
159 MONO_MT_HASCAT_IDX, /* "Parent" }, */
160 MONO_MT_CAT_IDX, /* "Type" }, */
161 MONO_MT_BLOB_IDX, /* "Value" }, */
164 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
165 MONO_MT_UINT16, /* "Action" }, */
166 MONO_MT_HASDEC_IDX, /* "Parent" }, */
167 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
170 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
171 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
172 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
175 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
176 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
177 MONO_MT_STRING_IDX, /* "Name" }, */
178 MONO_MT_TABLE_IDX, /* "EventType" }, TypeDef or TypeRef */
181 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
182 MONO_MT_TABLE_IDX, /* "Event" }, */
185 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
186 MONO_MT_UINT32, /* "Flags" }, */
187 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
188 MONO_MT_STRING_IDX, /* "TypeName" }, */
189 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
190 MONO_MT_IMPL_IDX, /* "Implementation" }, */
193 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
194 MONO_MT_UINT16, /* "Flags" }, */
195 MONO_MT_STRING_IDX, /* "Name" }, */
196 MONO_MT_BLOB_IDX, /* "Signature" }, */
199 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
200 MONO_MT_UINT32, /* "Offset" }, */
201 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
204 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
205 MONO_MT_HFM_IDX, /* "Parent" }, */
206 MONO_MT_BLOB_IDX, /* "NativeType" }, */
209 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
210 MONO_MT_UINT32, /* "RVA" }, */
211 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
214 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
215 MONO_MT_TABLE_IDX, /* "Field" }, */
218 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
219 MONO_MT_UINT32, /* "Flags" }, */
220 MONO_MT_STRING_IDX, /* "Name" }, */
221 MONO_MT_BLOB_IDX, /* "Value" }, */
224 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
225 MONO_MT_UINT16, /* "MappingFlag" }, */
226 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
227 MONO_MT_STRING_IDX, /* "ImportName" }, */
228 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
231 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
232 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
233 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
236 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
237 MONO_MT_UINT32, /* "Offset" }, */
238 MONO_MT_UINT32, /* "Flags" }, */
239 MONO_MT_STRING_IDX, /* "Name" }, */
240 MONO_MT_IMPL_IDX, /* "Implementation" }, */
243 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
244 MONO_MT_MRP_IDX, /* "Class" }, */
245 MONO_MT_STRING_IDX, /* "Name" }, */
246 MONO_MT_BLOB_IDX, /* "Signature" }, */
249 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
250 MONO_MT_UINT32, /* "RVA" }, */
251 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
252 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
253 MONO_MT_STRING_IDX, /* "Name" }, */
254 MONO_MT_BLOB_IDX, /* "Signature" }, */
255 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
258 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
259 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
260 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
261 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
264 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
265 MONO_MT_UINT16, /* "MethodSemantic" }, */
266 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
267 MONO_MT_HS_IDX, /* "Association" }, */
270 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
271 MONO_MT_TABLE_IDX, /* "Method" }, */
274 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
275 MONO_MT_UINT16, /* "Generation" }, */
276 MONO_MT_STRING_IDX, /* "Name" }, */
277 MONO_MT_GUID_IDX, /* "MVID" }, */
278 MONO_MT_GUID_IDX, /* "EncID" }, */
279 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
282 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
283 MONO_MT_STRING_IDX, /* "Name" }, */
286 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
287 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
288 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
291 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
292 MONO_MT_UINT16, /* "Flags" }, */
293 MONO_MT_UINT16, /* "Sequence" }, */
294 MONO_MT_STRING_IDX, /* "Name" }, */
297 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
298 MONO_MT_TABLE_IDX, /* "Param" }, */
301 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
302 MONO_MT_UINT16, /* "Flags" }, */
303 MONO_MT_STRING_IDX, /* "Name" }, */
304 MONO_MT_BLOB_IDX, /* "Type" }, */
307 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
308 MONO_MT_TABLE_IDX, /* "Property" }, */
311 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
312 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
313 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
316 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
317 MONO_MT_BLOB_IDX, /* "Signature" }, */
320 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
321 MONO_MT_UINT32, /* "Flags" }, */
322 MONO_MT_STRING_IDX, /* "Name" }, */
323 MONO_MT_STRING_IDX, /* "Namespace" }, */
324 MONO_MT_TDOR_IDX, /* "Extends" }, */
325 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
326 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
329 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
330 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
331 MONO_MT_STRING_IDX, /* "Name" }, */
332 MONO_MT_STRING_IDX, /* "Namespace" }, */
335 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
336 MONO_MT_BLOB_IDX, /* "Signature" }, */
339 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
340 MONO_MT_UINT16, /* "Number" }, */
341 MONO_MT_UINT16, /* "Flags" }, */
342 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
343 MONO_MT_STRING_IDX, /* "Name" }, */
346 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
347 MONO_MT_MDOR_IDX, /* "Method" }, */
348 MONO_MT_BLOB_IDX, /* "Signature" }, */
351 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
352 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
353 MONO_MT_TDOR_IDX, /* "Constraint" }, */
356 #define NULL_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
360 /* Must be the same order as MONO_TABLE_* */
361 const static unsigned char
362 table_description [] = {
363 MODULE_SCHEMA_OFFSET,
364 TYPEREF_SCHEMA_OFFSET,
365 TYPEDEF_SCHEMA_OFFSET,
366 FIELD_POINTER_SCHEMA_OFFSET,
368 METHOD_POINTER_SCHEMA_OFFSET,
369 METHOD_SCHEMA_OFFSET,
370 PARAM_POINTER_SCHEMA_OFFSET,
372 IFACEMAP_SCHEMA_OFFSET,
373 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
374 CONSTANT_SCHEMA_OFFSET,
375 CUSTOM_ATTR_SCHEMA_OFFSET,
376 FIELD_MARSHAL_SCHEMA_OFFSET,
377 DECL_SEC_SCHEMA_OFFSET,
378 CLASS_LAYOUT_SCHEMA_OFFSET,
379 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
380 STDALON_SIG_SCHEMA_OFFSET,
381 EVENTMAP_SCHEMA_OFFSET,
382 EVENT_POINTER_SCHEMA_OFFSET,
384 PROPERTY_MAP_SCHEMA_OFFSET,
385 PROPERTY_POINTER_SCHEMA_OFFSET,
386 PROPERTY_SCHEMA_OFFSET,
387 METHOD_SEMA_SCHEMA_OFFSET,
388 METHOD_IMPL_SCHEMA_OFFSET,
389 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
390 TYPESPEC_SCHEMA_OFFSET,
391 IMPLMAP_SCHEMA_OFFSET,
392 FIELD_RVA_SCHEMA_OFFSET,
395 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
396 ASSEMBLYPROC_SCHEMA_OFFSET,
397 ASSEMBLYOS_SCHEMA_OFFSET,
398 ASSEMBLYREF_SCHEMA_OFFSET,
399 ASSEMBLYREFPROC_SCHEMA_OFFSET,
400 ASSEMBLYREFOS_SCHEMA_OFFSET,
402 EXPORTED_TYPE_SCHEMA_OFFSET,
403 MANIFEST_SCHEMA_OFFSET,
404 NESTED_CLASS_SCHEMA_OFFSET,
405 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
406 METHOD_SPEC_SCHEMA_OFFSET,
407 GEN_CONSTRAINT_SCHEMA_OFFSET
410 #ifdef HAVE_ARRAY_ELEM_INIT
411 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
412 #define MSGSTRFIELD1(line) str##line
413 static const struct msgstr_t {
414 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
415 #include "mono/cil/tables.def"
418 #define TABLEDEF(a,b) b,
419 #include "mono/cil/tables.def"
422 static const gint16 tableidx [] = {
423 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
424 #include "mono/cil/tables.def"
429 #define TABLEDEF(a,b) b,
430 static const char* const
431 mono_tables_names [] = {
432 #include "mono/cil/tables.def"
438 /* Auxiliary structure used for caching inflated signatures */
440 MonoMethodSignature *sig;
441 MonoGenericContext context;
442 } MonoInflatedMethodSignature;
445 * mono_meta_table_name:
446 * @table: table index
448 * Returns: the name for the @table index
451 mono_meta_table_name (int table)
453 if ((table < 0) || (table > MONO_TABLE_LAST))
456 #ifdef HAVE_ARRAY_ELEM_INIT
457 return (const char*)&tablestr + tableidx [table];
459 return mono_tables_names [table];
463 /* The guy who wrote the spec for this should not be allowed near a
466 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
467 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
468 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
469 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
470 inverse of this mapping.
473 #define rtsize(s,b) (((s) < (1 << (b)) ? 2 : 4))
474 #define idx_size(tableidx) (meta->tables [(tableidx)].rows < 65536 ? 2 : 4)
476 /* Reference: Partition II - 23.2.6 */
478 * mono_metadata_compute_size:
479 * @meta: metadata context
480 * @tableindex: metadata table number
481 * @result_bitfield: pointer to guint32 where to store additional info
483 * mono_metadata_compute_size() computes the lenght in bytes of a single
484 * row in a metadata table. The size of each column is encoded in the
485 * @result_bitfield return value along with the number of columns in the table.
486 * the resulting bitfield should be handed to the mono_metadata_table_size()
487 * and mono_metadata_table_count() macros.
488 * This is a Mono runtime internal only function.
491 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
493 guint32 bitfield = 0;
494 int size = 0, field_size = 0;
497 const unsigned char *description = TableSchemas + table_description [tableindex];
499 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
502 field_size = 4; break;
505 field_size = 2; break;
508 field_size = 1; break;
510 case MONO_MT_BLOB_IDX:
511 field_size = meta->idx_blob_wide ? 4 : 2; break;
513 case MONO_MT_STRING_IDX:
514 field_size = meta->idx_string_wide ? 4 : 2; break;
516 case MONO_MT_GUID_IDX:
517 field_size = meta->idx_guid_wide ? 4 : 2; break;
519 case MONO_MT_TABLE_IDX:
520 /* Uhm, a table index can point to other tables besides the current one
521 * so, it's not correct to use the rowcount of the current table to
522 * get the size for this column - lupus
524 switch (tableindex) {
525 case MONO_TABLE_ASSEMBLYREFOS:
527 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
528 case MONO_TABLE_ASSEMBLYPROCESSOR:
530 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
531 case MONO_TABLE_CLASSLAYOUT:
533 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
534 case MONO_TABLE_EVENTMAP:
535 g_assert (i == 0 || i == 1);
536 field_size = i ? idx_size (MONO_TABLE_EVENT):
537 idx_size(MONO_TABLE_TYPEDEF);
539 case MONO_TABLE_EVENT:
541 field_size = MAX (idx_size (MONO_TABLE_TYPEDEF), idx_size(MONO_TABLE_TYPEREF));
542 field_size = MAX (field_size, idx_size(MONO_TABLE_TYPESPEC));
544 case MONO_TABLE_EVENT_POINTER:
546 field_size = idx_size (MONO_TABLE_EVENT); break;
547 case MONO_TABLE_EXPORTEDTYPE:
549 /* the index is in another metadata file, so it must be 4 */
550 field_size = 4; break;
551 case MONO_TABLE_FIELDLAYOUT:
553 field_size = idx_size (MONO_TABLE_FIELD); break;
554 case MONO_TABLE_FIELDRVA:
556 field_size = idx_size (MONO_TABLE_FIELD); break;
557 case MONO_TABLE_FIELD_POINTER:
559 field_size = idx_size (MONO_TABLE_FIELD); break;
560 case MONO_TABLE_IMPLMAP:
562 field_size = idx_size (MONO_TABLE_MODULEREF); break;
563 case MONO_TABLE_INTERFACEIMPL:
565 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
566 case MONO_TABLE_METHOD:
568 field_size = idx_size (MONO_TABLE_PARAM); break;
569 case MONO_TABLE_METHODIMPL:
571 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
572 case MONO_TABLE_METHODSEMANTICS:
574 field_size = idx_size (MONO_TABLE_METHOD); break;
575 case MONO_TABLE_METHOD_POINTER:
577 field_size = idx_size (MONO_TABLE_METHOD); break;
578 case MONO_TABLE_NESTEDCLASS:
579 g_assert (i == 0 || i == 1);
580 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
581 case MONO_TABLE_PARAM_POINTER:
583 field_size = idx_size (MONO_TABLE_PARAM); break;
584 case MONO_TABLE_PROPERTYMAP:
585 g_assert (i == 0 || i == 1);
586 field_size = i ? idx_size (MONO_TABLE_PROPERTY):
587 idx_size(MONO_TABLE_TYPEDEF);
589 case MONO_TABLE_PROPERTY_POINTER:
591 field_size = idx_size (MONO_TABLE_PROPERTY); break;
592 case MONO_TABLE_TYPEDEF:
593 g_assert (i == 4 || i == 5);
594 field_size = i == 4 ? idx_size (MONO_TABLE_FIELD):
595 idx_size(MONO_TABLE_METHOD);
597 case MONO_TABLE_GENERICPARAM:
598 g_assert (i == 2 || i == 4 || i == 5);
600 field_size = MAX (idx_size (MONO_TABLE_METHOD), idx_size (MONO_TABLE_TYPEDEF));
602 field_size = idx_size (MONO_TABLE_TYPEDEF);
604 field_size = idx_size (MONO_TABLE_TYPEDEF);
607 case MONO_TABLE_GENERICPARAMCONSTRAINT:
609 field_size = idx_size (MONO_TABLE_GENERICPARAM);
613 g_assert_not_reached ();
618 * HasConstant: ParamDef, FieldDef, Property
620 case MONO_MT_CONST_IDX:
621 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
622 meta->tables [MONO_TABLE_FIELD].rows);
623 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
625 /* 2 bits to encode tag */
626 field_size = rtsize (n, 16-2);
630 * HasCustomAttribute: points to any table but
633 case MONO_MT_HASCAT_IDX:
635 * We believe that since the signature and
636 * permission are indexing the Blob heap,
637 * we should consider the blob size first
639 /* I'm not a believer - lupus
640 if (meta->idx_blob_wide){
645 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
646 meta->tables [MONO_TABLE_FIELD].rows);
647 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
648 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
649 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
650 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
651 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
652 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
653 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
654 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
655 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
656 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
657 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
658 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
659 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
660 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
661 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
662 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
663 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
665 /* 5 bits to encode */
666 field_size = rtsize (n, 16-5);
670 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
671 * MemberRef and String.
673 case MONO_MT_CAT_IDX:
674 /* String is a heap, if it is wide, we know the size */
676 if (meta->idx_string_wide){
681 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
682 meta->tables [MONO_TABLE_TYPEDEF].rows);
683 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
684 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
686 /* 3 bits to encode */
687 field_size = rtsize (n, 16-3);
691 * HasDeclSecurity: Typedef, MethodDef, Assembly
693 case MONO_MT_HASDEC_IDX:
694 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
695 meta->tables [MONO_TABLE_METHOD].rows);
696 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
698 /* 2 bits to encode */
699 field_size = rtsize (n, 16-2);
703 * Implementation: File, AssemblyRef, ExportedType
705 case MONO_MT_IMPL_IDX:
706 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
707 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
708 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
710 /* 2 bits to encode tag */
711 field_size = rtsize (n, 16-2);
715 * HasFieldMarshall: FieldDef, ParamDef
717 case MONO_MT_HFM_IDX:
718 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
719 meta->tables [MONO_TABLE_PARAM].rows);
721 /* 1 bit used to encode tag */
722 field_size = rtsize (n, 16-1);
726 * MemberForwarded: FieldDef, MethodDef
729 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
730 meta->tables [MONO_TABLE_METHOD].rows);
732 /* 1 bit used to encode tag */
733 field_size = rtsize (n, 16-1);
737 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
739 * It is TypeDef, _TypeRef_, TypeSpec, instead.
741 case MONO_MT_TDOR_IDX:
742 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
743 meta->tables [MONO_TABLE_TYPEREF].rows);
744 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
746 /* 2 bits to encode */
747 field_size = rtsize (n, 16-2);
751 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
753 case MONO_MT_MRP_IDX:
754 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
755 meta->tables [MONO_TABLE_TYPEREF].rows);
756 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
757 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
758 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
759 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
761 /* 3 bits to encode */
762 field_size = rtsize (n, 16 - 3);
766 * MethodDefOrRef: MethodDef, MemberRef
768 case MONO_MT_MDOR_IDX:
769 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
770 meta->tables [MONO_TABLE_MEMBERREF].rows);
772 /* 1 bit used to encode tag */
773 field_size = rtsize (n, 16-1);
777 * HasSemantics: Property, Event
780 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
781 meta->tables [MONO_TABLE_EVENT].rows);
783 /* 1 bit used to encode tag */
784 field_size = rtsize (n, 16-1);
788 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
791 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
792 meta->tables [MONO_TABLE_MODULEREF].rows);
793 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
794 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
796 /* 2 bits used to encode tag (ECMA spec claims 3) */
797 field_size = rtsize (n, 16 - 2);
802 * encode field size as follows (we just need to
809 bitfield |= (field_size-1) << shift;
812 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
815 *result_bitfield = (i << 24) | bitfield;
820 * mono_metadata_compute_table_bases:
821 * @meta: metadata context to compute table values
823 * Computes the table bases for the metadata structure.
824 * This is an internal function used by the image loader code.
827 mono_metadata_compute_table_bases (MonoImage *meta)
830 const char *base = meta->tables_base;
832 for (i = 0; i < MONO_TABLE_NUM; i++) {
833 MonoTableInfo *table = &meta->tables [i];
834 if (table->rows == 0)
837 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
839 base += table->rows * table->row_size;
844 * mono_metadata_locate:
845 * @meta: metadata context
846 * @table: table code.
847 * @idx: index of element to retrieve from @table.
849 * Returns: a pointer to the @idx element in the metadata table
850 * whose code is @table.
853 mono_metadata_locate (MonoImage *meta, int table, int idx)
855 /* idx == 0 refers always to NULL */
856 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, "");
858 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
862 * mono_metadata_locate_token:
863 * @meta: metadata context
864 * @token: metadata token
866 * Returns: a pointer to the data in the metadata represented by the
870 mono_metadata_locate_token (MonoImage *meta, guint32 token)
872 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
876 * mono_metadata_string_heap:
877 * @meta: metadata context
878 * @index: index into the string heap.
880 * Returns: an in-memory pointer to the @index in the string heap.
883 mono_metadata_string_heap (MonoImage *meta, guint32 index)
885 g_return_val_if_fail (index < meta->heap_strings.size, "");
886 return meta->heap_strings.data + index;
890 * mono_metadata_user_string:
891 * @meta: metadata context
892 * @index: index into the user string heap.
894 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
897 mono_metadata_user_string (MonoImage *meta, guint32 index)
899 g_return_val_if_fail (index < meta->heap_us.size, "");
900 return meta->heap_us.data + index;
904 * mono_metadata_blob_heap:
905 * @meta: metadata context
906 * @index: index into the blob.
908 * Returns: an in-memory pointer to the @index in the Blob heap.
911 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
913 g_return_val_if_fail (index < meta->heap_blob.size, "");
914 return meta->heap_blob.data + index;
918 * mono_metadata_guid_heap:
919 * @meta: metadata context
920 * @index: index into the guid heap.
922 * Returns: an in-memory pointer to the @index in the guid heap.
925 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
928 index *= 16; /* adjust for guid size and 1-based index */
929 g_return_val_if_fail (index < meta->heap_guid.size, "");
930 return meta->heap_guid.data + index;
933 static const unsigned char *
934 dword_align (const unsigned char *ptr)
936 #if SIZEOF_VOID_P == 8
937 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
939 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
944 * mono_metadata_decode_row:
945 * @t: table to extract information from.
946 * @idx: index in table.
947 * @res: array of @res_size cols to store the results in
949 * This decompresses the metadata element @idx in table @t
950 * into the guint32 @res array that has res_size elements
953 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
955 guint32 bitfield = t->size_bitfield;
956 int i, count = mono_metadata_table_count (bitfield);
959 g_assert (idx < t->rows);
960 data = t->base + idx * t->row_size;
962 g_assert (res_size == count);
964 for (i = 0; i < count; i++) {
965 int n = mono_metadata_table_size (bitfield, i);
969 res [i] = *data; break;
971 res [i] = read16 (data); break;
973 res [i] = read32 (data); break;
975 g_assert_not_reached ();
982 * mono_metadata_decode_row_col:
983 * @t: table to extract information from.
984 * @idx: index for row in table.
985 * @col: column in the row.
987 * This function returns the value of column @col from the @idx
988 * row in the table @t.
991 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
993 guint32 bitfield = t->size_bitfield;
995 register const char *data;
998 g_assert (idx < t->rows);
999 g_assert (col < mono_metadata_table_count (bitfield));
1000 data = t->base + idx * t->row_size;
1002 n = mono_metadata_table_size (bitfield, 0);
1003 for (i = 0; i < col; ++i) {
1005 n = mono_metadata_table_size (bitfield, i + 1);
1011 return read16 (data);
1013 return read32 (data);
1015 g_assert_not_reached ();
1021 * mono_metadata_decode_blob_size:
1022 * @ptr: pointer to a blob object
1023 * @rptr: the new position of the pointer
1025 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1027 * Returns: the size of the blob object
1030 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1032 const unsigned char *ptr = (const unsigned char *)xptr;
1035 if ((*ptr & 0x80) == 0){
1036 size = ptr [0] & 0x7f;
1038 } else if ((*ptr & 0x40) == 0){
1039 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1042 size = ((ptr [0] & 0x1f) << 24) +
1054 * mono_metadata_decode_value:
1055 * @ptr: pointer to decode from
1056 * @rptr: the new position of the pointer
1058 * This routine decompresses 32-bit values as specified in the "Blob and
1059 * Signature" section (22.2)
1061 * Returns: the decoded value
1064 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1066 const unsigned char *ptr = (const unsigned char *) _ptr;
1067 unsigned char b = *ptr;
1070 if ((b & 0x80) == 0){
1073 } else if ((b & 0x40) == 0){
1074 len = ((b & 0x3f) << 8 | ptr [1]);
1077 len = ((b & 0x1f) << 24) |
1090 * mono_metadata_decode_signed_value:
1091 * @ptr: pointer to decode from
1092 * @rptr: the new position of the pointer
1094 * This routine decompresses 32-bit signed values
1095 * (not specified in the spec)
1097 * Returns: the decoded value
1100 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1102 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1103 gint32 ival = uval >> 1;
1106 /* ival is a truncated 2's complement negative number. */
1108 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1111 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1112 return ival - 0x2000;
1113 if (ival < 0x10000000)
1114 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1115 return ival - 0x10000000;
1116 g_assert (ival < 0x20000000);
1117 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1118 return ival - 0x20000000;
1122 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1123 * using the *Ptr tables in uncompressed metadata, if they are available.
1125 * FIXME: The caller is not forced to call this function, which is error-prone, since
1126 * forgetting to call it would only show up as a bug on uncompressed metadata.
1129 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1131 if (!image->uncompressed_metadata)
1135 case MONO_TABLE_METHOD:
1136 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1137 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1140 case MONO_TABLE_FIELD:
1141 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1142 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1145 case MONO_TABLE_EVENT:
1146 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1147 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1150 case MONO_TABLE_PROPERTY:
1151 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1152 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1155 case MONO_TABLE_PARAM:
1156 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1157 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1166 * mono_metadata_decode_table_row:
1168 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1169 * uncompressed metadata into account, so it should be used to access the
1170 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1171 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1174 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1176 if (image->uncompressed_metadata)
1177 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1179 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1183 * mono_metadata_decode_table_row_col:
1185 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1186 * uncompressed metadata into account, so it should be used to access the
1187 * Method, Field, Param and Event tables.
1189 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1191 if (image->uncompressed_metadata)
1192 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1194 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1198 * mono_metadata_parse_typedef_or_ref:
1199 * @m: a metadata context.
1200 * @ptr: a pointer to an encoded TypedefOrRef in @m
1201 * @rptr: pointer updated to match the end of the decoded stream
1203 * Returns: a token valid in the @m metadata decoded from
1204 * the compressed representation.
1207 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1210 token = mono_metadata_decode_value (ptr, &ptr);
1213 return mono_metadata_token_from_dor (token);
1217 * mono_metadata_parse_custom_mod:
1218 * @m: a metadata context.
1219 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1220 * @ptr: a pointer to (possibly) the start of a custom modifier list
1221 * @rptr: pointer updated to match the end of the decoded stream
1223 * Checks if @ptr points to a type custom modifier compressed representation.
1225 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1228 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1230 MonoCustomMod local;
1231 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1234 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1235 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1242 * mono_metadata_parse_array_full:
1243 * @m: a metadata context.
1244 * @ptr: a pointer to an encoded array description.
1245 * @rptr: pointer updated to match the end of the decoded stream
1247 * Decodes the compressed array description found in the metadata @m at @ptr.
1249 * Returns: a #MonoArrayType structure describing the array type
1250 * and dimensions. Memory is allocated from the image mempool.
1252 * LOCKING: Assumes the loader lock is held.
1255 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1256 const char *ptr, const char **rptr)
1259 MonoArrayType *array = mono_mempool_alloc0 (m->mempool, sizeof (MonoArrayType));
1262 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1265 array->eklass = mono_class_from_mono_type (etype);
1266 array->rank = mono_metadata_decode_value (ptr, &ptr);
1268 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1269 if (array->numsizes)
1270 array->sizes = g_new0 (int, array->numsizes);
1271 for (i = 0; i < array->numsizes; ++i)
1272 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1274 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1275 if (array->numlobounds)
1276 array->lobounds = g_new0 (int, array->numlobounds);
1277 for (i = 0; i < array->numlobounds; ++i)
1278 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1286 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1288 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1292 * mono_metadata_free_array:
1293 * @array: array description
1295 * Frees the array description returned from mono_metadata_parse_array().
1298 mono_metadata_free_array (MonoArrayType *array)
1300 g_free (array->sizes);
1301 g_free (array->lobounds);
1306 * need to add common field and param attributes combinations:
1309 * public static literal
1312 * private static literal
1314 static const MonoType
1316 /* data, attrs, type, nmods, byref, pinned */
1317 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1318 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1319 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1320 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1321 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1322 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1323 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1324 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1325 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1326 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1327 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1328 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1329 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1330 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1331 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1332 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1333 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1334 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1335 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1336 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1337 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1338 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1339 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1340 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1341 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1342 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1343 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1344 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1345 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1346 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1347 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1348 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1349 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1350 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1353 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1355 static GHashTable *type_cache = NULL;
1356 static GHashTable *generic_inst_cache = NULL;
1357 static GHashTable *generic_class_cache = NULL;
1358 static int next_generic_inst_id = 0;
1361 * Protected by the loader lock.
1362 * It has a MonoMethodInflated* as key and value.
1363 * The key lookup will just access the declaring and context fields
1365 static GHashTable *generic_method_cache = NULL;
1368 * Protected by the loader lock.
1369 * It has a MonoInflatedMethodSignature* as key and value.
1371 static GHashTable *generic_signature_cache = NULL;
1373 static guint mono_generic_class_hash (gconstpointer data);
1376 * MonoTypes with modifies are never cached, so we never check or use that field.
1379 mono_type_hash (gconstpointer data)
1381 const MonoType *type = (const MonoType *) data;
1382 if (type->type == MONO_TYPE_GENERICINST)
1383 return mono_generic_class_hash (type->data.generic_class);
1385 return type->type | (type->byref << 8) | (type->attrs << 9);
1389 mono_type_equal (gconstpointer ka, gconstpointer kb)
1391 const MonoType *a = (const MonoType *) ka;
1392 const MonoType *b = (const MonoType *) kb;
1394 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1396 /* need other checks */
1401 mono_generic_inst_hash (gconstpointer data)
1403 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1407 for (i = 0; i < ginst->type_argc; ++i) {
1409 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1412 return hash ^ (ginst->is_open << 8);
1416 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1420 if (a->id && b->id) {
1423 if (!signature_only)
1427 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1429 for (i = 0; i < a->type_argc; ++i) {
1430 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1437 mono_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1439 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1440 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1442 return mono_generic_inst_equal_full (a, b, FALSE);
1446 mono_generic_class_hash (gconstpointer data)
1448 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1449 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1452 hash += gclass->is_tb_open;
1453 hash += mono_metadata_generic_context_hash (&gclass->context);
1459 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1461 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1462 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1464 return _mono_metadata_generic_class_equal (a, b, FALSE);
1468 * mono_metadata_init:
1470 * Initialize the global variables of this module.
1471 * This is a Mono runtime internal function.
1474 mono_metadata_init (void)
1478 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1479 generic_inst_cache = g_hash_table_new_full (mono_generic_inst_hash, mono_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
1480 generic_class_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
1482 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1483 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1487 * mono_metadata_cleanup:
1489 * Free all resources used by this module.
1490 * This is a Mono runtime internal function.
1493 mono_metadata_cleanup (void)
1495 g_hash_table_destroy (type_cache);
1496 g_hash_table_destroy (generic_inst_cache);
1497 g_hash_table_destroy (generic_class_cache);
1498 if (generic_method_cache)
1499 g_hash_table_destroy (generic_method_cache);
1500 if (generic_signature_cache)
1501 g_hash_table_destroy (generic_signature_cache);
1503 generic_inst_cache = NULL;
1504 generic_class_cache = NULL;
1505 generic_method_cache = NULL;
1506 generic_signature_cache = NULL;
1510 * mono_metadata_parse_type:
1511 * @m: metadata context
1512 * @mode: king of type that may be found at @ptr
1513 * @opt_attrs: optional attributes to store in the returned type
1514 * @ptr: pointer to the type representation
1515 * @rptr: pointer updated to match the end of the decoded stream
1517 * Decode a compressed type description found at @ptr in @m.
1518 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1519 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1520 * This function can be used to decode type descriptions in method signatures,
1521 * field signatures, locals signatures etc.
1523 * To parse a generic type, `generic_container' points to the current class'es
1524 * (the `generic_container' field in the MonoClass) or the current generic method's
1525 * (the `generic_container' field in the MonoMethodNormal) generic container.
1526 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1527 * this MonoGenericContainer.
1528 * This is a Mono runtime internal function.
1530 * LOCKING: Acquires the loader lock.
1532 * Returns: a #MonoType structure representing the decoded type.
1535 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1536 short opt_attrs, const char *ptr, const char **rptr)
1538 MonoType *type, *cached;
1540 gboolean byref = FALSE;
1541 gboolean pinned = FALSE;
1542 const char *tmp_ptr;
1546 mono_loader_lock ();
1548 * According to the spec, custom modifiers should come before the byref
1549 * flag, but the IL produced by ilasm from the following signature:
1550 * object modopt(...) &
1551 * starts with a byref flag, followed by the modifiers. (bug #49802)
1552 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1553 * it would be better to treat byref as real type constructor instead of
1555 * Also, pinned should come before anything else, but some MSV++ produced
1556 * assemblies violate this (#bug 61990).
1559 /* Count the modifiers first */
1564 case MONO_TYPE_PINNED:
1565 case MONO_TYPE_BYREF:
1568 case MONO_TYPE_CMOD_REQD:
1569 case MONO_TYPE_CMOD_OPT:
1571 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1579 type = mono_mempool_alloc0 (m->mempool, sizeof (MonoType) + ((gint32)count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod));
1580 type->num_mods = count;
1582 g_warning ("got more than 64 modifiers in type");
1585 memset (type, 0, sizeof (MonoType));
1588 /* Parse pinned, byref and custom modifiers */
1593 case MONO_TYPE_PINNED:
1597 case MONO_TYPE_BYREF:
1601 case MONO_TYPE_CMOD_REQD:
1602 case MONO_TYPE_CMOD_OPT:
1603 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1611 type->attrs = opt_attrs;
1612 type->byref = byref;
1613 type->pinned = pinned ? 1 : 0;
1615 if (!do_mono_metadata_parse_type (type, m, container, ptr, &ptr)) {
1616 mono_loader_unlock ();
1623 if (!type->num_mods) {
1624 /* no need to free type here, because it is on the stack */
1625 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1626 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1628 /* Consider the case:
1630 class Foo<T> { class Bar {} }
1631 class Test : Foo<Test>.Bar {}
1633 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1634 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1636 We ensure that the MonoClass is in a state that we can canonicalize to:
1638 klass->byval_arg.data.klass == klass
1639 klass->this_arg.data.klass == klass
1641 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1643 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1644 of a MonoClass which currently holds the loader lock. 'type' is local.
1646 if (ret->data.klass == type->data.klass) {
1647 mono_loader_unlock ();
1651 /* No need to use locking since nobody is modifying the hash table */
1652 if ((cached = g_hash_table_lookup (type_cache, type))) {
1653 mono_loader_unlock ();
1658 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1660 if (type == &stype) {
1661 type = mono_mempool_alloc (m->mempool, sizeof (MonoType));
1662 memcpy (type, &stype, sizeof (MonoType));
1664 mono_loader_unlock ();
1669 * LOCKING: Assumes the loader lock is held.
1672 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1673 const char *ptr, const char **rptr)
1675 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1679 * mono_metadata_get_param_attrs:
1681 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1682 * returned memory needs to be freed by the caller. If all the param attributes are
1683 * 0, then NULL is returned.
1686 mono_metadata_get_param_attrs (MonoImage *m, int def)
1688 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1689 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1690 guint32 cols [MONO_PARAM_SIZE];
1691 guint lastp, i, param_index = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def - 1, MONO_METHOD_PARAMLIST);
1694 if (def < methodt->rows)
1695 lastp = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def, MONO_METHOD_PARAMLIST);
1697 lastp = paramt->rows + 1;
1699 for (i = param_index; i < lastp; ++i) {
1700 mono_metadata_decode_row (&m->tables [MONO_TABLE_PARAM], i - 1, cols, MONO_PARAM_SIZE);
1701 if (cols [MONO_PARAM_FLAGS]) {
1703 pattrs = g_new0 (int, 1 + (lastp - param_index));
1704 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1712 * mono_metadata_parse_signature_full:
1713 * @image: metadata context
1714 * @generic_container: generic container
1715 * @toke: metadata token
1717 * Decode a method signature stored in the STANDALONESIG table
1719 * LOCKING: Assumes the loader lock is held.
1721 * Returns: a MonoMethodSignature describing the signature.
1723 MonoMethodSignature*
1724 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1726 MonoTableInfo *tables = image->tables;
1727 guint32 idx = mono_metadata_token_index (token);
1732 return mono_lookup_dynamic_token (image, token, NULL);
1734 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1736 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1738 ptr = mono_metadata_blob_heap (image, sig);
1739 mono_metadata_decode_blob_size (ptr, &ptr);
1741 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1745 * mono_metadata_parse_signature:
1746 * @image: metadata context
1747 * @toke: metadata token
1749 * Decode a method signature stored in the STANDALONESIG table
1751 * Returns: a MonoMethodSignature describing the signature.
1753 MonoMethodSignature*
1754 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1756 return mono_metadata_parse_signature_full (image, NULL, token);
1760 * mono_metadata_signature_alloc:
1761 * @image: metadata context
1762 * @nparmas: number of parameters in the signature
1764 * Allocate a MonoMethodSignature structure with the specified number of params.
1765 * The return type and the params types need to be filled later.
1766 * This is a Mono runtime internal function.
1768 * LOCKING: Assumes the loader lock is held.
1770 * Returns: the new MonoMethodSignature structure.
1772 MonoMethodSignature*
1773 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1775 MonoMethodSignature *sig;
1777 mono_loader_lock ();
1778 sig = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodSignature) + ((gint32)nparams - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
1779 sig->param_count = nparams;
1780 sig->sentinelpos = -1;
1781 mono_loader_unlock ();
1787 * mono_metadata_signature_dup:
1788 * @sig: method signature
1790 * Duplicate an existing MonoMethodSignature so it can be modified.
1791 * This is a Mono runtime internal function.
1793 * Returns: the new MonoMethodSignature structure.
1795 MonoMethodSignature*
1796 mono_metadata_signature_dup (MonoMethodSignature *sig)
1800 sigsize = sizeof (MonoMethodSignature) + (sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *);
1801 return g_memdup (sig, sigsize);
1805 * mono_metadata_parse_method_signature:
1806 * @m: metadata context
1807 * @generic_container: generics container
1808 * @def: the MethodDef index or 0 for Ref signatures.
1809 * @ptr: pointer to the signature metadata representation
1810 * @rptr: pointer updated to match the end of the decoded stream
1812 * Decode a method signature stored at @ptr.
1813 * This is a Mono runtime internal function.
1815 * LOCKING: Assumes the loader lock is held.
1817 * Returns: a MonoMethodSignature describing the signature.
1819 MonoMethodSignature *
1820 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1821 int def, const char *ptr, const char **rptr)
1823 MonoMethodSignature *method;
1824 int i, *pattrs = NULL;
1825 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1826 guint32 gen_param_count = 0;
1827 gboolean is_open = FALSE;
1830 gen_param_count = 1;
1835 call_convention = *ptr & 0x0F;
1837 if (gen_param_count)
1838 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1839 param_count = mono_metadata_decode_value (ptr, &ptr);
1842 pattrs = mono_metadata_get_param_attrs (m, def);
1843 method = mono_metadata_signature_alloc (m, param_count);
1844 method->hasthis = hasthis;
1845 method->explicit_this = explicit_this;
1846 method->call_convention = call_convention;
1847 method->generic_param_count = gen_param_count;
1849 if (call_convention != 0xa) {
1850 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1852 mono_metadata_free_method_signature (method);
1856 is_open = mono_class_is_open_constructed_type (method->ret);
1859 for (i = 0; i < method->param_count; ++i) {
1860 if (*ptr == MONO_TYPE_SENTINEL) {
1861 if (method->call_convention != MONO_CALL_VARARG || def)
1862 g_error ("found sentinel for methoddef or no vararg method");
1863 if (method->sentinelpos >= 0)
1864 g_error ("found sentinel twice in the same signature");
1865 method->sentinelpos = i;
1868 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1869 if (!method->params [i]) {
1870 mono_metadata_free_method_signature (method);
1875 is_open = mono_class_is_open_constructed_type (method->params [i]);
1878 /* The sentinel could be missing if the caller does not pass any additional arguments */
1879 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1880 method->sentinelpos = method->param_count;
1882 method->has_type_parameters = is_open;
1884 if (def && (method->call_convention == MONO_CALL_VARARG))
1885 method->sentinelpos = method->param_count;
1892 * Add signature to a cache and increase ref count...
1899 * mono_metadata_parse_method_signature:
1900 * @m: metadata context
1901 * @def: the MethodDef index or 0 for Ref signatures.
1902 * @ptr: pointer to the signature metadata representation
1903 * @rptr: pointer updated to match the end of the decoded stream
1905 * Decode a method signature stored at @ptr.
1906 * This is a Mono runtime internal function.
1908 * LOCKING: Assumes the loader lock is held.
1910 * Returns: a MonoMethodSignature describing the signature.
1912 MonoMethodSignature *
1913 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1915 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1919 * mono_metadata_free_method_signature:
1920 * @sig: signature to destroy
1922 * Free the memory allocated in the signature @sig.
1923 * This method needs to be robust and work also on partially-built
1924 * signatures, so it does extra checks.
1927 mono_metadata_free_method_signature (MonoMethodSignature *sig)
1929 /* Everything is allocated from mempools */
1933 mono_metadata_free_type (sig->ret);
1934 for (i = 0; i < sig->param_count; ++i) {
1935 if (sig->params [i])
1936 mono_metadata_free_type (sig->params [i]);
1942 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
1946 /* Allocated in inflate_generic_signature () */
1948 mono_metadata_free_type (sig->ret);
1949 for (i = 0; i < sig->param_count; ++i) {
1950 if (sig->params [i])
1951 mono_metadata_free_type (sig->params [i]);
1957 inflated_method_equal (gconstpointer a, gconstpointer b)
1959 const MonoMethodInflated *ma = a;
1960 const MonoMethodInflated *mb = b;
1961 if (ma->declaring != mb->declaring)
1963 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
1967 inflated_method_hash (gconstpointer a)
1969 const MonoMethodInflated *ma = a;
1970 return mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring);
1974 inflated_signature_equal (gconstpointer a, gconstpointer b)
1976 const MonoInflatedMethodSignature *sig1 = a;
1977 const MonoInflatedMethodSignature *sig2 = b;
1979 /* sig->sig is assumed to be canonized */
1980 if (sig1->sig != sig2->sig)
1982 /* The generic instances are canonized */
1983 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
1987 inflated_signature_hash (gconstpointer a)
1989 const MonoInflatedMethodSignature *sig = a;
1991 /* sig->sig is assumed to be canonized */
1992 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
1996 dump_ginst (MonoGenericInst *ginst)
2001 g_print ("Ginst: <");
2002 for (i = 0; i < ginst->type_argc; ++i) {
2005 name = mono_type_get_name (ginst->type_argv [i]);
2006 g_print ("%s", name);
2012 static gboolean type_in_image (MonoType *type, MonoImage *image);
2015 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2017 gpointer iter = NULL;
2020 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2021 if (type_in_image (p, image))
2024 return type_in_image (mono_signature_get_return_type (sig), image);
2028 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2032 for (i = 0; i < ginst->type_argc; ++i) {
2033 if (type_in_image (ginst->type_argv [i], image))
2041 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2043 return gclass->container_class->image == image ||
2044 ginst_in_image (gclass->context.class_inst, image);
2048 type_in_image (MonoType *type, MonoImage *image)
2051 switch (type->type) {
2052 case MONO_TYPE_GENERICINST:
2053 return gclass_in_image (type->data.generic_class, image);
2055 type = type->data.type;
2057 case MONO_TYPE_SZARRAY:
2058 type = &type->data.klass->byval_arg;
2060 case MONO_TYPE_ARRAY:
2061 type = &type->data.array->eklass->byval_arg;
2063 case MONO_TYPE_FNPTR:
2064 return signature_in_image (type->data.method, image);
2066 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2067 return image == mono_class_from_mono_type (type)->image;
2074 } CleanForImageUserData;
2077 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2079 MonoGenericClass *gclass = key;
2080 CleanForImageUserData *user_data = data;
2082 if (!gclass_in_image (gclass, user_data->image))
2085 user_data->list = g_slist_prepend (user_data->list, gclass);
2090 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2092 MonoGenericInst *ginst = key;
2093 CleanForImageUserData *user_data = data;
2095 if (!ginst_in_image (ginst, user_data->image))
2098 user_data->list = g_slist_prepend (user_data->list, ginst);
2103 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2105 MonoImage *image = data;
2106 MonoMethodInflated *method = key;
2108 return method->declaring->klass->image == image ||
2109 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2110 (method->context.method_inst && ginst_in_image (method->context.method_inst, image));
2114 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2116 MonoImage *image = data;
2117 MonoInflatedMethodSignature *sig = key;
2119 return /* signature_in_image (sig->sig, image) || */
2120 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2121 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2125 mono_metadata_clean_for_image (MonoImage *image)
2127 CleanForImageUserData ginst_data, gclass_data;
2130 /* The data structures could reference each other so we delete them in two phases */
2131 ginst_data.image = gclass_data.image = image;
2132 ginst_data.list = gclass_data.list = NULL;
2134 mono_loader_lock ();
2135 /* Collect the items to delete and remove them from the hash table */
2136 g_hash_table_foreach_steal (generic_inst_cache, steal_ginst_in_image, &ginst_data);
2137 g_hash_table_foreach_steal (generic_class_cache, steal_gclass_in_image, &gclass_data);
2138 if (generic_method_cache)
2139 g_hash_table_foreach_remove (generic_method_cache, inflated_method_in_image, image);
2140 if (generic_signature_cache)
2141 g_hash_table_foreach_remove (generic_signature_cache, inflated_signature_in_image, image);
2142 /* Delete the removed items */
2143 for (l = ginst_data.list; l; l = l->next)
2144 free_generic_inst (l->data);
2145 for (l = gclass_data.list; l; l = l->next)
2146 free_generic_class (l->data);
2147 g_slist_free (ginst_data.list);
2148 g_slist_free (gclass_data.list);
2149 mono_loader_unlock ();
2153 free_inflated_method (MonoMethodInflated *imethod)
2156 MonoMethod *method = (MonoMethod*)imethod;
2158 if (method->signature)
2159 mono_metadata_free_inflated_signature (method->signature);
2161 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))) {
2162 MonoMethodNormal* mn = (MonoMethodNormal*) method;
2163 MonoMethodHeader *header = mn->header;
2166 /* Allocated in inflate_generic_header () */
2167 for (i = 0; i < header->num_locals; ++i)
2168 mono_metadata_free_type (header->locals [i]);
2169 g_free (header->clauses);
2178 free_generic_inst (MonoGenericInst *ginst)
2182 for (i = 0; i < ginst->type_argc; ++i)
2183 mono_metadata_free_type (ginst->type_argv [i]);
2184 g_free (ginst->type_argv);
2190 free_generic_class (MonoGenericClass *gclass)
2194 /* FIXME: The dynamic case */
2195 if (gclass->cached_class && !gclass->cached_class->image->dynamic && !mono_generic_class_is_generic_type_definition (gclass)) {
2196 MonoClass *class = gclass->cached_class;
2198 /* Allocated in mono_class_init () */
2199 g_free (class->methods);
2200 g_free (class->properties);
2201 /* Allocated in mono_class_setup_fields () */
2202 if (class->fields) {
2203 for (i = 0; i < class->field.count; ++i) {
2204 g_free (class->fields [i].generic_info);
2205 mono_metadata_free_type (class->fields [i].type);
2208 /* Allocated in mono_generic_class_get_class () */
2209 g_free (class->interfaces);
2216 free_inflated_signature (MonoInflatedMethodSignature *sig)
2218 mono_metadata_free_inflated_signature (sig->sig);
2223 * LOCKING: assumes the loader lock is held.
2226 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2229 if (!generic_method_cache)
2230 generic_method_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2231 g_hash_table_insert (generic_method_cache, method, method);
2234 if (generic_method_cache)
2235 return g_hash_table_lookup (generic_method_cache, method);
2241 * mono_metadata_get_inflated_signature:
2243 * Given an inflated signature and a generic context, return a canonical copy of the
2244 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2246 MonoMethodSignature *
2247 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2249 MonoInflatedMethodSignature helper;
2250 MonoInflatedMethodSignature *res;
2252 mono_loader_lock ();
2253 if (!generic_signature_cache)
2254 generic_signature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2257 helper.context.class_inst = context->class_inst;
2258 helper.context.method_inst = context->method_inst;
2259 res = g_hash_table_lookup (generic_signature_cache, &helper);
2261 res = g_new0 (MonoInflatedMethodSignature, 1);
2263 res->context.class_inst = context->class_inst;
2264 res->context.method_inst = context->method_inst;
2265 g_hash_table_insert (generic_signature_cache, res, res);
2268 mono_loader_unlock ();
2273 * mono_metadata_get_generic_inst:
2275 * Given a list of types, return a MonoGenericInst that represents that list.
2276 * The returned MonoGenericInst has its own copy of the list of types. The list
2277 * passed in the argument can be freed, modified or disposed of.
2281 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2283 MonoGenericInst *ginst;
2284 MonoGenericInst helper;
2287 helper.type_argc = type_argc;
2288 helper.type_argv = type_argv;
2291 for (i = 0; i < type_argc; ++i)
2292 if (mono_class_is_open_constructed_type (type_argv [i]))
2294 helper.is_open = (i < type_argc);
2296 /*dump_ginst (&helper);*/
2297 mono_loader_lock ();
2298 ginst = g_hash_table_lookup (generic_inst_cache, &helper);
2300 mono_loader_unlock ();
2301 /*g_print (" found cached\n");*/
2305 ginst = g_new0 (MonoGenericInst, 1);
2306 ginst->type_argc = type_argc;
2307 ginst->type_argv = g_new (MonoType*, type_argc);
2308 ginst->id = ++next_generic_inst_id;
2309 ginst->is_open = helper.is_open;
2311 for (i = 0; i < type_argc; ++i)
2312 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2314 g_hash_table_insert (generic_inst_cache, ginst, ginst);
2316 mono_loader_unlock ();
2317 /*g_print (" inserted\n");*/
2322 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2324 MonoGenericContainer *container = container_class->generic_container;
2326 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2328 return inst == container->context.class_inst;
2332 * mono_metadata_lookup_generic_class:
2334 * Returns a MonoGenericClass with the given properties.
2338 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2340 MonoGenericClass *gclass;
2341 MonoGenericClass helper;
2342 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2344 helper.container_class = container_class;
2345 helper.context.class_inst = inst;
2346 helper.context.method_inst = NULL;
2347 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2348 helper.is_tb_open = is_tb_open;
2349 helper.cached_class = NULL;
2351 mono_loader_lock ();
2353 gclass = g_hash_table_lookup (generic_class_cache, &helper);
2355 /* A tripwire just to keep us honest */
2356 g_assert (!helper.cached_class);
2359 mono_loader_unlock ();
2364 MonoDynamicGenericClass *dgclass = g_new0 (MonoDynamicGenericClass, 1);
2365 gclass = &dgclass->generic_class;
2366 gclass->is_dynamic = 1;
2368 gclass = g_new0 (MonoGenericClass, 1);
2371 gclass->is_tb_open = is_tb_open;
2372 gclass->container_class = container_class;
2373 gclass->context.class_inst = inst;
2374 gclass->context.method_inst = NULL;
2375 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2376 gclass->cached_class = container_class;
2378 g_hash_table_insert (generic_class_cache, gclass, gclass);
2380 mono_loader_unlock ();
2386 * mono_metadata_inflate_generic_inst:
2388 * Instantiate the generic instance @ginst with the context @context.
2392 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context)
2394 MonoType **type_argv;
2395 MonoGenericInst *nginst;
2398 if (!ginst->is_open)
2401 type_argv = g_new0 (MonoType*, ginst->type_argc);
2403 for (i = 0; i < ginst->type_argc; i++)
2404 type_argv [i] = mono_class_inflate_generic_type (ginst->type_argv [i], context);
2406 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2408 for (i = 0; i < ginst->type_argc; i++)
2409 mono_metadata_free_type (type_argv [i]);
2416 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2417 int count, const char *ptr, const char **rptr)
2419 MonoType **type_argv;
2420 MonoGenericInst *ginst;
2423 type_argv = g_new0 (MonoType*, count);
2425 for (i = 0; i < count; i++) {
2426 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2437 ginst = mono_metadata_get_generic_inst (count, type_argv);
2445 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2446 const char *ptr, const char **rptr)
2448 MonoGenericInst *inst;
2453 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
2457 gklass = mono_class_from_mono_type (gtype);
2458 if (!gklass->generic_container)
2461 count = mono_metadata_decode_value (ptr, &ptr);
2462 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
2469 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
2475 * @gc: The generic container to normalize
2476 * @type: The kind of generic parameters the resulting generic-container should contain
2479 static MonoGenericContainer *
2480 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
2482 gboolean is_var = (type == MONO_TYPE_VAR);
2486 g_assert (is_var || type == MONO_TYPE_MVAR);
2489 if (gc->is_method || gc->parent)
2491 * The current MonoGenericContainer is a generic method -> its `parent'
2492 * points to the containing class'es container.
2501 * mono_metadata_parse_generic_param:
2502 * @generic_container: Our MonoClass's or MonoMethodNormal's MonoGenericContainer;
2503 * see mono_metadata_parse_type_full() for details.
2504 * Internal routine to parse a generic type parameter.
2505 * LOCKING: Assumes the loader lock is held.
2507 static MonoGenericParam *
2508 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
2509 MonoTypeEnum type, const char *ptr, const char **rptr)
2511 int index = mono_metadata_decode_value (ptr, &ptr);
2515 generic_container = select_container (generic_container, type);
2516 if (!generic_container) {
2517 /* Create dummy MonoGenericParam */
2518 MonoGenericParam *param = mono_mempool_alloc0 (m->mempool, sizeof (MonoGenericParam));
2519 param->name = mono_mempool_alloc0 (m->mempool, 8);
2520 sprintf ((char*)param->name, "%d", index);
2526 g_assert (index < generic_container->type_argc);
2527 return &generic_container->type_params [index];
2531 * do_mono_metadata_parse_type:
2532 * @type: MonoType to be filled in with the return value
2534 * @generic_context: generics_context
2535 * @ptr: pointer to the encoded type
2536 * @rptr: pointer where the end of the encoded type is saved
2538 * Internal routine used to "fill" the contents of @type from an
2539 * allocated pointer. This is done this way to avoid doing too
2540 * many mini-allocations (particularly for the MonoFieldType which
2541 * most of the time is just a MonoType, but sometimes might be augmented).
2543 * This routine is used by mono_metadata_parse_type and
2544 * mono_metadata_parse_field_type
2546 * This extracts a Type as specified in Partition II (22.2.12)
2548 * Returns: FALSE if the type could not be loaded
2551 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2552 const char *ptr, const char **rptr)
2555 type->type = mono_metadata_decode_value (ptr, &ptr);
2557 switch (type->type){
2558 case MONO_TYPE_VOID:
2559 case MONO_TYPE_BOOLEAN:
2560 case MONO_TYPE_CHAR:
2573 case MONO_TYPE_STRING:
2574 case MONO_TYPE_OBJECT:
2575 case MONO_TYPE_TYPEDBYREF:
2577 case MONO_TYPE_VALUETYPE:
2578 case MONO_TYPE_CLASS: {
2580 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
2581 type->data.klass = mono_class_get (m, token);
2582 if (!type->data.klass)
2586 case MONO_TYPE_SZARRAY: {
2587 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2590 type->data.klass = mono_class_from_mono_type (etype);
2594 type->data.type = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2595 if (!type->data.type)
2598 case MONO_TYPE_FNPTR:
2599 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
2601 case MONO_TYPE_ARRAY:
2602 type->data.array = mono_metadata_parse_array_full (m, container, ptr, &ptr);
2604 case MONO_TYPE_MVAR:
2606 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
2608 case MONO_TYPE_GENERICINST:
2609 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
2612 g_error ("type 0x%02x not handled in do_mono_metadata_parse_type", type->type);
2621 * mono_metadata_free_type:
2622 * @type: type to free
2624 * Free the memory allocated for type @type which is allocated on the heap.
2627 mono_metadata_free_type (MonoType *type)
2629 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
2632 switch (type->type){
2633 case MONO_TYPE_OBJECT:
2634 case MONO_TYPE_STRING:
2635 if (!type->data.klass)
2638 case MONO_TYPE_CLASS:
2639 case MONO_TYPE_VALUETYPE:
2640 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
2644 mono_metadata_free_type (type->data.type);
2646 case MONO_TYPE_FNPTR:
2647 mono_metadata_free_method_signature (type->data.method);
2649 case MONO_TYPE_ARRAY:
2650 mono_metadata_free_array (type->data.array);
2659 hex_dump (const char *buffer, int base, int count)
2661 int show_header = 1;
2669 for (i = 0; i < count; i++){
2672 printf ("\n0x%08x: ", (unsigned char) base + i);
2674 printf ("%02x ", (unsigned char) (buffer [i]));
2681 * @mh: The Method header
2682 * @ptr: Points to the beginning of the Section Data (25.3)
2685 parse_section_data (MonoImage *m, MonoMethodHeader *mh, const unsigned char *ptr)
2687 unsigned char sect_data_flags;
2688 const unsigned char *sptr;
2690 guint32 sect_data_len;
2693 /* align on 32-bit boundary */
2694 sptr = ptr = dword_align (ptr);
2695 sect_data_flags = *ptr;
2698 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
2700 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
2703 sect_data_len = ptr [0];
2707 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
2708 hex_dump (sptr, 0, sect_data_len+8);
2709 g_print ("\nheader: ");
2710 hex_dump (sptr-4, 0, 4);
2714 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
2715 const unsigned char *p = dword_align (ptr);
2717 mh->num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
2718 /* we could just store a pointer if we don't need to byteswap */
2719 mh->clauses = mono_mempool_alloc0 (m->mempool, sizeof (MonoExceptionClause) * mh->num_clauses);
2720 for (i = 0; i < mh->num_clauses; ++i) {
2721 MonoExceptionClause *ec = &mh->clauses [i];
2724 ec->flags = read32 (p);
2725 ec->try_offset = read32 (p + 4);
2726 ec->try_len = read32 (p + 8);
2727 ec->handler_offset = read32 (p + 12);
2728 ec->handler_len = read32 (p + 16);
2729 tof_value = read32 (p + 20);
2732 ec->flags = read16 (p);
2733 ec->try_offset = read16 (p + 2);
2734 ec->try_len = *(p + 4);
2735 ec->handler_offset = read16 (p + 5);
2736 ec->handler_len = *(p + 7);
2737 tof_value = read32 (p + 8);
2740 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2741 ec->data.filter_offset = tof_value;
2742 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
2743 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
2745 ec->data.catch_class = NULL;
2747 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
2751 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
2752 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
2759 * mono_metadata_parse_mh_full:
2760 * @m: metadata context
2761 * @generic_context: generics context
2762 * @ptr: pointer to the method header.
2764 * Decode the method header at @ptr, including pointer to the IL code,
2765 * info about local variables and optional exception tables.
2766 * This is a Mono runtime internal function.
2768 * LOCKING: Assumes the loader lock is held.
2770 * Returns: a MonoMethodHeader allocated from the image mempool.
2773 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
2775 MonoMethodHeader *mh;
2776 unsigned char flags = *(const unsigned char *) ptr;
2777 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
2779 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
2780 const unsigned char *code;
2783 g_return_val_if_fail (ptr != NULL, NULL);
2785 mono_loader_lock ();
2787 case METHOD_HEADER_TINY_FORMAT:
2788 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader));
2791 local_var_sig_tok = 0;
2792 mh->code_size = flags >> 2;
2793 mh->code = (unsigned char*)ptr;
2794 mono_loader_unlock ();
2796 case METHOD_HEADER_TINY_FORMAT1:
2797 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader));
2800 local_var_sig_tok = 0;
2803 * The spec claims 3 bits, but the Beta2 is
2806 mh->code_size = flags >> 2;
2807 mh->code = (unsigned char*)ptr;
2808 mono_loader_unlock ();
2810 case METHOD_HEADER_FAT_FORMAT:
2811 fat_flags = read16 (ptr);
2813 hsize = (fat_flags >> 12) & 0xf;
2814 max_stack = read16 (ptr);
2816 code_size = read32 (ptr);
2818 local_var_sig_tok = read32 (ptr);
2821 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
2826 code = (unsigned char*)ptr;
2828 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
2832 * There are more sections
2834 ptr = (char*)code + code_size;
2837 mono_loader_unlock ();
2841 if (local_var_sig_tok) {
2842 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
2843 const char *locals_ptr;
2844 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
2845 int len=0, i, bsize;
2847 mono_metadata_decode_row (t, (local_var_sig_tok & 0xffffff)-1, cols, 1);
2848 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
2849 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
2850 if (*locals_ptr != 0x07)
2851 g_warning ("wrong signature for locals blob");
2853 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
2854 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader) + (len - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
2855 mh->num_locals = len;
2856 for (i = 0; i < len; ++i) {
2857 mh->locals [i] = mono_metadata_parse_type_full (
2858 m, container, MONO_PARSE_LOCAL, 0, locals_ptr, &locals_ptr);
2859 if (!mh->locals [i]) {
2860 mono_loader_unlock ();
2865 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader));
2868 mh->code_size = code_size;
2869 mh->max_stack = max_stack;
2870 mh->init_locals = init_locals;
2871 if (fat_flags & METHOD_HEADER_MORE_SECTS)
2872 parse_section_data (m, mh, (const unsigned char*)ptr);
2873 mono_loader_unlock ();
2878 * mono_metadata_parse_mh:
2879 * @generic_context: generics context
2880 * @ptr: pointer to the method header.
2882 * Decode the method header at @ptr, including pointer to the IL code,
2883 * info about local variables and optional exception tables.
2884 * This is a Mono runtime internal function.
2886 * Returns: a MonoMethodHeader.
2889 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
2891 MonoMethodHeader *res;
2893 mono_loader_lock ();
2895 res = mono_metadata_parse_mh_full (m, NULL, ptr);
2897 mono_loader_unlock ();
2903 * mono_metadata_free_mh:
2904 * @mh: a method header
2906 * Free the memory allocated for the method header.
2907 * This is a Mono runtime internal function.
2910 mono_metadata_free_mh (MonoMethodHeader *mh)
2912 /* Allocated from the mempool */
2916 * mono_method_header_get_code:
2917 * @header: a MonoMethodHeader pointer
2918 * @code_size: memory location for returning the code size
2919 * @max_stack: memory location for returning the max stack
2921 * Method header accessor to retreive info about the IL code properties:
2922 * a pointer to the IL code itself, the size of the code and the max number
2923 * of stack slots used by the code.
2925 * Returns: pointer to the IL code represented by the method header.
2927 const unsigned char*
2928 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
2931 *code_size = header->code_size;
2933 *max_stack = header->max_stack;
2934 return header->code;
2938 * mono_method_header_get_locals:
2939 * @header: a MonoMethodHeader pointer
2940 * @num_locals: memory location for returning the number of local variables
2941 * @init_locals: memory location for returning the init_locals flag
2943 * Method header accessor to retreive info about the local variables:
2944 * an array of local types, the number of locals and whether the locals
2945 * are supposed to be initialized to 0 on method entry
2947 * Returns: pointer to an array of types of the local variables
2950 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
2953 *num_locals = header->num_locals;
2955 *init_locals = header->init_locals;
2956 return header->locals;
2960 * mono_method_header_get_num_clauses:
2961 * @header: a MonoMethodHeader pointer
2963 * Method header accessor to retreive the number of exception clauses.
2965 * Returns: the number of exception clauses present
2968 mono_method_header_get_num_clauses (MonoMethodHeader *header)
2970 return header->num_clauses;
2974 * mono_method_header_get_clauses:
2975 * @header: a MonoMethodHeader pointer
2976 * @method: MonoMethod the header belongs to
2977 * @iter: pointer to a iterator
2978 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
2980 * Get the info about the exception clauses in the method. Set *iter to NULL to
2981 * initiate the iteration, then call the method repeatedly until it returns FALSE.
2982 * At each iteration, the structure pointed to by clause if filled with the
2983 * exception clause information.
2985 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
2989 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
2991 MonoExceptionClause *sc;
2992 /* later we'll be able to use this interface to parse the clause info on demand,
2993 * without allocating anything.
2995 if (!iter || !header->num_clauses)
2998 *iter = sc = header->clauses;
3004 if (sc < header->clauses + header->num_clauses) {
3013 * mono_metadata_parse_field_type:
3014 * @m: metadata context to extract information from
3015 * @ptr: pointer to the field signature
3016 * @rptr: pointer updated to match the end of the decoded stream
3018 * Parses the field signature, and returns the type information for it.
3020 * Returns: The MonoType that was extracted from @ptr.
3023 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3025 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3029 * mono_metadata_parse_param:
3030 * @m: metadata context to extract information from
3031 * @ptr: pointer to the param signature
3032 * @rptr: pointer updated to match the end of the decoded stream
3034 * Parses the param signature, and returns the type information for it.
3036 * Returns: The MonoType that was extracted from @ptr.
3039 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3041 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3045 * mono_metadata_token_from_dor:
3046 * @dor_token: A TypeDefOrRef coded index
3048 * dor_token is a TypeDefOrRef coded index: it contains either
3049 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3050 * bits contain an index into the table.
3052 * Returns: an expanded token
3055 mono_metadata_token_from_dor (guint32 dor_index)
3059 table = dor_index & 0x03;
3060 idx = dor_index >> 2;
3063 case 0: /* TypeDef */
3064 return MONO_TOKEN_TYPE_DEF | idx;
3065 case 1: /* TypeRef */
3066 return MONO_TOKEN_TYPE_REF | idx;
3067 case 2: /* TypeSpec */
3068 return MONO_TOKEN_TYPE_SPEC | idx;
3070 g_assert_not_reached ();
3077 * We use this to pass context information to the row locator
3080 int idx; /* The index that we are trying to locate */
3081 int col_idx; /* The index in the row where idx may be stored */
3082 MonoTableInfo *t; /* pointer to the table */
3087 * How the row locator works.
3092 * ___|___------> _______
3095 * A column in the rows of table A references an index in table B.
3096 * For example A may be the TYPEDEF table and B the METHODDEF table.
3098 * Given an index in table B we want to get the row in table A
3099 * where the column n references our index in B.
3101 * In the locator_t structure:
3103 * col_idx is the column number
3104 * index is the index in table B
3105 * result will be the index in table A
3108 * Table A Table B column (in table A)
3109 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3110 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3111 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3112 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3113 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3115 * Note that we still don't support encoded indexes.
3119 typedef_locator (const void *a, const void *b)
3121 locator_t *loc = (locator_t *) a;
3122 const char *bb = (const char *) b;
3123 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3124 guint32 col, col_next;
3126 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3132 * Need to check that the next row is valid.
3134 if (typedef_index + 1 < loc->t->rows) {
3135 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3136 if (loc->idx >= col_next)
3139 if (col == col_next)
3143 loc->result = typedef_index;
3149 table_locator (const void *a, const void *b)
3151 locator_t *loc = (locator_t *) a;
3152 const char *bb = (const char *) b;
3153 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3156 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3158 if (loc->idx == col) {
3159 loc->result = table_index;
3169 declsec_locator (const void *a, const void *b)
3171 locator_t *loc = (locator_t *) a;
3172 const char *bb = (const char *) b;
3173 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3176 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3178 if (loc->idx == col) {
3179 loc->result = table_index;
3191 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3192 * which contains IDX.
3195 search_ptr_table (MonoImage *image, int table, int idx)
3197 MonoTableInfo *ptrdef = &image->tables [table];
3200 /* Use a linear search to find our index in the table */
3201 for (i = 0; i < ptrdef->rows; i ++)
3202 /* All the Ptr tables have the same structure */
3203 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3206 if (i < ptrdef->rows)
3213 * mono_metadata_typedef_from_field:
3214 * @meta: metadata context
3215 * @index: FieldDef token
3217 * Returns: the 1-based index into the TypeDef table of the type that
3218 * declared the field described by @index, or 0 if not found.
3221 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3223 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3229 loc.idx = mono_metadata_token_index (index);
3230 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3233 if (meta->uncompressed_metadata)
3234 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3236 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3237 g_assert_not_reached ();
3239 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3240 return loc.result + 1;
3244 * mono_metadata_typedef_from_method:
3245 * @meta: metadata context
3246 * @index: MethodDef token
3248 * Returns: the 1-based index into the TypeDef table of the type that
3249 * declared the method described by @index. 0 if not found.
3252 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3254 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3260 loc.idx = mono_metadata_token_index (index);
3261 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3264 if (meta->uncompressed_metadata)
3265 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3267 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3268 g_assert_not_reached ();
3270 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3271 return loc.result + 1;
3275 * mono_metadata_interfaces_from_typedef_full:
3276 * @meta: metadata context
3277 * @index: typedef token
3279 * The array of interfaces that the @index typedef token implements is returned in
3280 * @interfaces. The number of elemnts in the array is returned in @count.
3282 * LOCKING: Assumes the loader lock is held.
3284 * Returns: TRUE on success, FALSE on failure.
3287 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, MonoGenericContext *context)
3289 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3292 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3301 loc.idx = mono_metadata_token_index (index);
3302 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3305 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3310 * We may end up in the middle of the rows...
3313 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
3319 while (pos < tdef->rows) {
3320 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3321 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3326 mono_loader_lock ();
3327 result = mono_mempool_alloc0 (meta->mempool, sizeof (MonoClass*) * (pos - start));
3328 mono_loader_unlock ();
3331 while (pos < tdef->rows) {
3334 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3335 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3337 iface = mono_class_get_full (
3338 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
3341 result [pos - start] = iface;
3344 *count = pos - start;
3345 *interfaces = result;
3350 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
3352 MonoClass **interfaces;
3355 mono_loader_lock ();
3356 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, NULL);
3357 mono_loader_unlock ();
3365 * mono_metadata_nested_in_typedef:
3366 * @meta: metadata context
3367 * @index: typedef token
3369 * Returns: the 1-based index into the TypeDef table of the type
3370 * where the type described by @index is nested.
3371 * Retruns 0 if @index describes a non-nested type.
3374 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
3376 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3382 loc.idx = mono_metadata_token_index (index);
3383 loc.col_idx = MONO_NESTED_CLASS_NESTED;
3386 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3389 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3390 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
3394 * mono_metadata_nesting_typedef:
3395 * @meta: metadata context
3396 * @index: typedef token
3398 * Returns: the 1-based index into the TypeDef table of the first type
3399 * that is nested inside the type described by @index. The search starts at
3400 * @start_index. returns 0 if no such type is found.
3403 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
3405 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3407 guint32 class_index = mono_metadata_token_index (index);
3412 start = start_index;
3414 while (start <= tdef->rows) {
3415 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
3421 if (start > tdef->rows)
3428 * mono_metadata_packing_from_typedef:
3429 * @meta: metadata context
3430 * @index: token representing a type
3432 * Returns: the info stored in the ClassLAyout table for the given typedef token
3433 * into the @packing and @size pointers.
3434 * Returns 0 if the info is not found.
3437 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
3439 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
3441 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
3446 loc.idx = mono_metadata_token_index (index);
3447 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
3450 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3453 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
3455 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
3457 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
3459 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3460 return loc.result + 1;
3464 * mono_metadata_custom_attrs_from_index:
3465 * @meta: metadata context
3466 * @index: token representing the parent
3468 * Returns: the 1-based index into the CustomAttribute table of the first
3469 * attribute which belongs to the metadata object described by @index.
3470 * Returns 0 if no such attribute is found.
3473 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
3475 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
3482 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
3485 /* FIXME: Index translation */
3487 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3490 /* Find the first entry by searching backwards */
3491 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
3494 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3495 return loc.result + 1;
3499 * mono_metadata_declsec_from_index:
3500 * @meta: metadata context
3501 * @index: token representing the parent
3503 * Returns: the 0-based index into the DeclarativeSecurity table of the first
3504 * attribute which belongs to the metadata object described by @index.
3505 * Returns -1 if no such attribute is found.
3508 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
3510 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
3517 loc.col_idx = MONO_DECL_SECURITY_PARENT;
3520 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
3523 /* Find the first entry by searching backwards */
3524 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
3532 mono_backtrace (int limit)
3537 backtrace (array, limit);
3538 names = backtrace_symbols (array, limit);
3539 for (i =0; i < limit; ++i) {
3540 g_print ("\t%s\n", names [i]);
3547 /*#define __alignof__(a) sizeof(a)*/
3548 #define __alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
3553 * @t: the type to return the size of
3555 * Returns: the number of bytes required to hold an instance of this
3559 mono_type_size (MonoType *t, int *align)
3566 *align = __alignof__(gpointer);
3567 return sizeof (gpointer);
3571 case MONO_TYPE_VOID:
3574 case MONO_TYPE_BOOLEAN:
3575 *align = __alignof__(gint8);
3579 *align = __alignof__(gint8);
3581 case MONO_TYPE_CHAR:
3584 *align = __alignof__(gint16);
3588 *align = __alignof__(gint32);
3591 *align = __alignof__(float);
3595 *align = __alignof__(gint64);
3598 *align = __alignof__(double);
3602 *align = __alignof__(gpointer);
3603 return sizeof (gpointer);
3604 case MONO_TYPE_STRING:
3605 *align = __alignof__(gpointer);
3606 return sizeof (gpointer);
3607 case MONO_TYPE_OBJECT:
3608 *align = __alignof__(gpointer);
3609 return sizeof (gpointer);
3610 case MONO_TYPE_VALUETYPE: {
3611 if (t->data.klass->enumtype)
3612 return mono_type_size (t->data.klass->enum_basetype, align);
3614 return mono_class_value_size (t->data.klass, (guint32*)align);
3616 case MONO_TYPE_CLASS:
3617 case MONO_TYPE_SZARRAY:
3619 case MONO_TYPE_FNPTR:
3620 case MONO_TYPE_ARRAY:
3621 *align = __alignof__(gpointer);
3622 return sizeof (gpointer);
3623 case MONO_TYPE_TYPEDBYREF:
3624 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
3625 case MONO_TYPE_GENERICINST: {
3626 MonoGenericClass *gclass = t->data.generic_class;
3627 MonoClass *container_class = gclass->container_class;
3629 // g_assert (!gclass->inst->is_open);
3631 if (container_class->valuetype) {
3632 if (container_class->enumtype)
3633 return mono_type_size (container_class->enum_basetype, align);
3635 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3637 *align = __alignof__(gpointer);
3638 return sizeof (gpointer);
3642 case MONO_TYPE_MVAR:
3643 /* FIXME: Martin, this is wrong. */
3644 *align = __alignof__(gpointer);
3645 return sizeof (gpointer);
3647 g_error ("mono_type_size: type 0x%02x unknown", t->type);
3653 * mono_type_stack_size:
3654 * @t: the type to return the size it uses on the stack
3656 * Returns: the number of bytes required to hold an instance of this
3657 * type on the runtime stack
3660 mono_type_stack_size (MonoType *t, int *align)
3662 return mono_type_stack_size_internal (t, align, FALSE);
3666 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
3670 g_assert (t != NULL);
3676 *align = __alignof__(gpointer);
3677 return sizeof (gpointer);
3681 case MONO_TYPE_BOOLEAN:
3682 case MONO_TYPE_CHAR:
3691 case MONO_TYPE_STRING:
3692 case MONO_TYPE_OBJECT:
3693 case MONO_TYPE_CLASS:
3694 case MONO_TYPE_SZARRAY:
3696 case MONO_TYPE_FNPTR:
3697 case MONO_TYPE_ARRAY:
3698 *align = __alignof__(gpointer);
3699 return sizeof (gpointer);
3700 case MONO_TYPE_TYPEDBYREF:
3701 *align = __alignof__(gpointer);
3702 return sizeof (gpointer) * 3;
3704 *align = __alignof__(float);
3705 return sizeof (float);
3708 *align = __alignof__(gint64);
3709 return sizeof (gint64);
3711 *align = __alignof__(double);
3712 return sizeof (double);
3713 case MONO_TYPE_VALUETYPE: {
3716 if (t->data.klass->enumtype)
3717 return mono_type_stack_size_internal (t->data.klass->enum_basetype, align, allow_open);
3719 size = mono_class_value_size (t->data.klass, (guint32*)align);
3721 *align = *align + __alignof__(gpointer) - 1;
3722 *align &= ~(__alignof__(gpointer) - 1);
3724 size += sizeof (gpointer) - 1;
3725 size &= ~(sizeof (gpointer) - 1);
3730 case MONO_TYPE_GENERICINST: {
3731 MonoGenericClass *gclass = t->data.generic_class;
3732 MonoClass *container_class = gclass->container_class;
3735 g_assert (!gclass->context.class_inst->is_open);
3737 if (container_class->valuetype) {
3738 if (container_class->enumtype)
3739 return mono_type_stack_size_internal (container_class->enum_basetype, align, allow_open);
3741 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3743 *align = *align + __alignof__(gpointer) - 1;
3744 *align &= ~(__alignof__(gpointer) - 1);
3746 size += sizeof (gpointer) - 1;
3747 size &= ~(sizeof (gpointer) - 1);
3752 *align = __alignof__(gpointer);
3753 return sizeof (gpointer);
3757 g_error ("type 0x%02x unknown", t->type);
3763 mono_type_generic_inst_is_valuetype (MonoType *type)
3765 g_assert (type->type == MONO_TYPE_GENERICINST);
3766 return type->data.generic_class->container_class->valuetype;
3770 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
3772 return gclass->container_class->valuetype;
3776 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
3778 MonoGenericInst *i1 = g1->context.class_inst;
3779 MonoGenericInst *i2 = g2->context.class_inst;
3781 if (g1->is_dynamic != g2->is_dynamic)
3783 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
3785 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
3787 return g1->is_tb_open == g2->is_tb_open;
3791 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
3793 MonoGenericInst *i1 = g1->context.class_inst;
3794 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
3796 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
3798 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
3800 return !g1->is_tb_open;
3804 mono_metadata_generic_context_hash (const MonoGenericContext *context)
3806 /* FIXME: check if this seed is good enough */
3807 guint hash = 0xc01dfee7;
3808 if (context->class_inst)
3809 hash = ((hash << 5) - hash) ^ context->class_inst->id;
3810 if (context->method_inst)
3811 hash = ((hash << 5) - hash) ^ context->method_inst->id;
3816 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
3818 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
3822 * mono_metadata_type_hash:
3825 * Computes an hash value for @t1 to be used in GHashTable.
3828 mono_metadata_type_hash (MonoType *t1)
3830 guint hash = t1->type;
3832 hash |= t1->byref << 6; /* do not collide with t1->type values */
3834 case MONO_TYPE_VALUETYPE:
3835 case MONO_TYPE_CLASS:
3836 case MONO_TYPE_SZARRAY:
3837 /* check if the distribution is good enough */
3838 return ((hash << 5) - hash) ^ g_str_hash (t1->data.klass->name);
3840 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
3841 case MONO_TYPE_ARRAY:
3842 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
3843 case MONO_TYPE_GENERICINST:
3844 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
3850 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
3854 if (p1->num != p2->num)
3857 if (p1->owner == p2->owner)
3861 * If `signature_only' is true, we're comparing two (method) signatures.
3862 * In this case, the owner of two type parameters doesn't need to match.
3865 return signature_only;
3869 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
3873 if (c1->generic_class && c2->generic_class)
3874 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
3875 if (c1->generic_class && c2->generic_container)
3876 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
3877 if (c1->generic_container && c2->generic_class)
3878 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
3879 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
3880 return mono_metadata_generic_param_equal (
3881 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
3882 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
3883 return mono_metadata_generic_param_equal (
3884 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
3885 if (signature_only &&
3886 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
3887 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
3892 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
3894 gpointer iter1 = 0, iter2 = 0;
3898 if (s1->call_convention != s2->call_convention)
3900 if (s1->sentinelpos != s2->sentinelpos)
3902 if (s1->hasthis != s2->hasthis)
3904 if (s1->explicit_this != s2->explicit_this)
3906 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
3908 if (s1->param_count != s2->param_count)
3912 MonoType *t1 = mono_signature_get_params (s1, &iter1);
3913 MonoType *t2 = mono_signature_get_params (s2, &iter2);
3915 if (t1 == NULL || t2 == NULL)
3917 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
3923 * mono_metadata_type_equal:
3927 * Determine if @t1 and @t2 represent the same type.
3928 * Returns: #TRUE if @t1 and @t2 are equal.
3931 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
3933 if (t1->type != t2->type || t1->byref != t2->byref)
3937 case MONO_TYPE_VOID:
3938 case MONO_TYPE_BOOLEAN:
3939 case MONO_TYPE_CHAR:
3950 case MONO_TYPE_STRING:
3953 case MONO_TYPE_OBJECT:
3954 case MONO_TYPE_TYPEDBYREF:
3956 case MONO_TYPE_VALUETYPE:
3957 case MONO_TYPE_CLASS:
3958 case MONO_TYPE_SZARRAY:
3959 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
3961 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
3962 case MONO_TYPE_ARRAY:
3963 if (t1->data.array->rank != t2->data.array->rank)
3965 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
3966 case MONO_TYPE_GENERICINST:
3967 return _mono_metadata_generic_class_equal (
3968 t1->data.generic_class, t2->data.generic_class, signature_only);
3970 return mono_metadata_generic_param_equal (
3971 t1->data.generic_param, t2->data.generic_param, signature_only);
3972 case MONO_TYPE_MVAR:
3973 return mono_metadata_generic_param_equal (
3974 t1->data.generic_param, t2->data.generic_param, signature_only);
3975 case MONO_TYPE_FNPTR:
3976 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
3978 g_error ("implement type compare for %0x!", t1->type);
3986 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
3988 return do_mono_metadata_type_equal (t1, t2, FALSE);
3992 * mono_metadata_signature_equal:
3993 * @sig1: a signature
3994 * @sig2: another signature
3996 * Determine if @sig1 and @sig2 represent the same signature, with the
3997 * same number of arguments and the same types.
3998 * Returns: #TRUE if @sig1 and @sig2 are equal.
4001 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4005 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4008 if (sig1->generic_param_count != sig2->generic_param_count)
4012 * We're just comparing the signatures of two methods here:
4014 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4015 * U and V are equal here.
4017 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4020 for (i = 0; i < sig1->param_count; i++) {
4021 MonoType *p1 = sig1->params[i];
4022 MonoType *p2 = sig2->params[i];
4024 /* if (p1->attrs != p2->attrs)
4027 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
4031 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4037 * mono_metadata_type_dup:
4038 * @mp: mempool to use
4039 * @original: type to duplicate
4041 * Returns: copy of type allocated from mempool (or from the heap, if @mp is null).
4044 mono_metadata_type_dup (MonoMemPool *mp, const MonoType *o)
4047 int sizeof_o = sizeof (MonoType);
4049 sizeof_o += (o->num_mods - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod);
4051 mono_loader_lock ();
4052 r = mp ? mono_mempool_alloc0 (mp, sizeof_o) : g_malloc (sizeof_o);
4053 mono_loader_unlock ();
4055 memcpy (r, o, sizeof_o);
4057 if (o->type == MONO_TYPE_PTR) {
4058 r->data.type = mono_metadata_type_dup (mp, o->data.type);
4059 } else if (o->type == MONO_TYPE_ARRAY) {
4060 /* FIXME: should mono_dup_array_type() use mempools? */
4062 r->data.array = mono_dup_array_type (o->data.array);
4063 } else if (o->type == MONO_TYPE_FNPTR) {
4064 /* FIXME: should mono_metadata_signature_deep_dup() use mempools? */
4066 r->data.method = mono_metadata_signature_deep_dup (o->data.method);
4072 mono_signature_hash (MonoMethodSignature *sig)
4074 guint i, res = sig->ret->type;
4076 for (i = 0; i < sig->param_count; i++)
4077 res = (res << 5) - res + mono_type_hash (sig->params[i]);
4083 * mono_metadata_encode_value:
4084 * @value: value to encode
4085 * @buf: buffer where to write the compressed representation
4086 * @endbuf: pointer updated to point at the end of the encoded output
4088 * Encodes the value @value in the compressed representation used
4089 * in metadata and stores the result in @buf. @buf needs to be big
4090 * enough to hold the data (4 bytes).
4093 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
4099 else if (value < 0x4000) {
4100 p [0] = 0x80 | (value >> 8);
4101 p [1] = value & 0xff;
4104 p [0] = (value >> 24) | 0xc0;
4105 p [1] = (value >> 16) & 0xff;
4106 p [2] = (value >> 8) & 0xff;
4107 p [3] = value & 0xff;
4115 * mono_metadata_field_info:
4116 * @meta: the Image the field is defined in
4117 * @index: the index in the field table representing the field
4118 * @offset: a pointer to an integer where to store the offset that
4119 * may have been specified for the field in a FieldLayout table
4120 * @rva: a pointer to the RVA of the field data in the image that
4121 * may have been defined in a FieldRVA table
4122 * @marshal_spec: a pointer to the marshal spec that may have been
4123 * defined for the field in a FieldMarshal table.
4125 * Gather info for field @index that may have been defined in the FieldLayout,
4126 * FieldRVA and FieldMarshal tables.
4127 * Either of offset, rva and marshal_spec can be NULL if you're not interested
4131 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4132 MonoMarshalSpec **marshal_spec)
4134 MonoTableInfo *tdef;
4137 loc.idx = index + 1;
4138 if (meta->uncompressed_metadata)
4139 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4142 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
4144 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
4147 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4148 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
4150 *offset = (guint32)-1;
4154 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
4156 loc.col_idx = MONO_FIELD_RVA_FIELD;
4159 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4161 * LAMESPEC: There is no signature, no nothing, just the raw data.
4163 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
4171 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
4172 *marshal_spec = mono_metadata_parse_marshal_spec (meta, p);
4179 * mono_metadata_get_constant_index:
4180 * @meta: the Image the field is defined in
4181 * @index: the token that may have a row defined in the constants table
4182 * @hint: possible position for the row
4184 * @token must be a FieldDef, ParamDef or PropertyDef token.
4186 * Returns: the index into the Constants table or 0 if not found.
4189 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4191 MonoTableInfo *tdef;
4193 guint32 index = mono_metadata_token_index (token);
4195 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4196 index <<= MONO_HASCONSTANT_BITS;
4197 switch (mono_metadata_token_table (token)) {
4198 case MONO_TABLE_FIELD:
4199 index |= MONO_HASCONSTANT_FIEDDEF;
4201 case MONO_TABLE_PARAM:
4202 index |= MONO_HASCONSTANT_PARAM;
4204 case MONO_TABLE_PROPERTY:
4205 index |= MONO_HASCONSTANT_PROPERTY;
4208 g_warning ("Not a valid token for the constant table: 0x%08x", token);
4212 loc.col_idx = MONO_CONSTANT_PARENT;
4215 /* FIXME: Index translation */
4217 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
4220 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4221 return loc.result + 1;
4227 * mono_metadata_events_from_typedef:
4228 * @meta: metadata context
4229 * @index: 0-based index (in the TypeDef table) describing a type
4231 * Returns: the 0-based index in the Event table for the events in the
4232 * type. The last event that belongs to the type (plus 1) is stored
4233 * in the @end_idx pointer.
4236 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4240 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
4248 loc.col_idx = MONO_EVENT_MAP_PARENT;
4249 loc.idx = index + 1;
4251 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4254 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
4255 if (loc.result + 1 < tdef->rows) {
4256 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
4258 end = meta->tables [MONO_TABLE_EVENT].rows;
4266 * mono_metadata_methods_from_event:
4267 * @meta: metadata context
4268 * @index: 0-based index (in the Event table) describing a event
4270 * Returns: the 0-based index in the MethodDef table for the methods in the
4271 * event. The last method that belongs to the event (plus 1) is stored
4272 * in the @end_idx pointer.
4275 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
4279 guint32 cols [MONO_METHOD_SEMA_SIZE];
4280 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4286 if (meta->uncompressed_metadata)
4287 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
4290 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4291 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
4293 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4298 * We may end up in the middle of the rows...
4301 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4307 while (end < msemt->rows) {
4308 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4309 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4318 * mono_metadata_properties_from_typedef:
4319 * @meta: metadata context
4320 * @index: 0-based index (in the TypeDef table) describing a type
4322 * Returns: the 0-based index in the Property table for the properties in the
4323 * type. The last property that belongs to the type (plus 1) is stored
4324 * in the @end_idx pointer.
4327 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4331 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
4339 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
4340 loc.idx = index + 1;
4342 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4345 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
4346 if (loc.result + 1 < tdef->rows) {
4347 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
4349 end = meta->tables [MONO_TABLE_PROPERTY].rows;
4357 * mono_metadata_methods_from_property:
4358 * @meta: metadata context
4359 * @index: 0-based index (in the PropertyDef table) describing a property
4361 * Returns: the 0-based index in the MethodDef table for the methods in the
4362 * property. The last method that belongs to the property (plus 1) is stored
4363 * in the @end_idx pointer.
4366 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
4370 guint32 cols [MONO_METHOD_SEMA_SIZE];
4371 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4377 if (meta->uncompressed_metadata)
4378 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
4381 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4382 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
4384 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4389 * We may end up in the middle of the rows...
4392 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4398 while (end < msemt->rows) {
4399 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4400 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4409 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
4412 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
4417 /* No index translation seems to be needed */
4420 loc.col_idx = MONO_IMPLMAP_MEMBER;
4421 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
4423 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4426 return loc.result + 1;
4430 * @image: context where the image is created
4431 * @type_spec: typespec token
4433 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
4437 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
4439 guint32 idx = mono_metadata_token_index (type_spec);
4441 guint32 cols [MONO_TYPESPEC_SIZE];
4444 MonoType *type, *type2;
4446 mono_loader_lock ();
4448 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4450 mono_loader_unlock ();
4454 t = &image->tables [MONO_TABLE_TYPESPEC];
4456 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
4457 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
4458 len = mono_metadata_decode_value (ptr, &ptr);
4460 type = mono_mempool_alloc0 (image->mempool, sizeof (MonoType));
4462 if (*ptr == MONO_TYPE_BYREF) {
4467 if (!do_mono_metadata_parse_type (type, image, NULL, ptr, &ptr)) {
4468 mono_loader_unlock ();
4472 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4475 mono_loader_unlock ();
4479 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type);
4481 mono_loader_unlock ();
4487 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
4489 MonoMarshalSpec *res;
4491 const char *start = ptr;
4493 /* fixme: this is incomplete, but I cant find more infos in the specs */
4495 res = g_new0 (MonoMarshalSpec, 1);
4497 len = mono_metadata_decode_value (ptr, &ptr);
4498 res->native = *ptr++;
4500 if (res->native == MONO_NATIVE_LPARRAY) {
4501 res->data.array_data.param_num = -1;
4502 res->data.array_data.num_elem = -1;
4503 res->data.array_data.elem_mult = -1;
4505 if (ptr - start <= len)
4506 res->data.array_data.elem_type = *ptr++;
4507 if (ptr - start <= len)
4508 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
4509 if (ptr - start <= len)
4510 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4511 if (ptr - start <= len) {
4513 * LAMESPEC: Older spec versions say this parameter comes before
4514 * num_elem. Never spec versions don't talk about elem_mult at
4515 * all, but csc still emits it, and it is used to distinguish
4516 * between param_num being 0, and param_num being omitted.
4517 * So if (param_num == 0) && (num_elem > 0), then
4518 * elem_mult == 0 -> the array size is num_elem
4519 * elem_mult == 1 -> the array size is @param_num + num_elem
4521 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
4525 if (res->native == MONO_NATIVE_BYVALTSTR) {
4526 if (ptr - start <= len)
4527 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4530 if (res->native == MONO_NATIVE_BYVALARRAY) {
4531 if (ptr - start <= len)
4532 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4535 if (res->native == MONO_NATIVE_CUSTOM) {
4536 /* skip unused type guid */
4537 len = mono_metadata_decode_value (ptr, &ptr);
4539 /* skip unused native type name */
4540 len = mono_metadata_decode_value (ptr, &ptr);
4542 /* read custom marshaler type name */
4543 len = mono_metadata_decode_value (ptr, &ptr);
4544 res->data.custom_data.custom_name = g_strndup (ptr, len);
4546 /* read cookie string */
4547 len = mono_metadata_decode_value (ptr, &ptr);
4548 res->data.custom_data.cookie = g_strndup (ptr, len);
4551 if (res->native == MONO_NATIVE_SAFEARRAY) {
4552 res->data.safearray_data.elem_type = 0;
4553 res->data.safearray_data.num_elem = 0;
4554 if (ptr - start <= len)
4555 res->data.safearray_data.elem_type = *ptr++;
4556 if (ptr - start <= len)
4557 res->data.safearray_data.num_elem = *ptr++;
4563 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
4565 if (spec->native == MONO_NATIVE_CUSTOM) {
4566 g_free (spec->data.custom_data.custom_name);
4567 g_free (spec->data.custom_data.cookie);
4573 * mono_type_to_unmanaged:
4575 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
4576 * describing the underlying native reprensetation of the type.
4578 * In addition the value pointed by
4579 * "conv" will contain the kind of marshalling required for this
4580 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
4583 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
4584 gboolean unicode, MonoMarshalConv *conv)
4586 MonoMarshalConv dummy_conv;
4592 *conv = MONO_MARSHAL_CONV_NONE;
4595 return MONO_NATIVE_UINT;
4599 case MONO_TYPE_BOOLEAN:
4601 switch (mspec->native) {
4602 case MONO_NATIVE_VARIANTBOOL:
4603 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
4604 return MONO_NATIVE_VARIANTBOOL;
4605 case MONO_NATIVE_BOOLEAN:
4606 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4607 return MONO_NATIVE_BOOLEAN;
4608 case MONO_NATIVE_I1:
4609 case MONO_NATIVE_U1:
4610 return mspec->native;
4612 g_error ("cant marshal bool to native type %02x", mspec->native);
4615 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4616 return MONO_NATIVE_BOOLEAN;
4617 case MONO_TYPE_CHAR: return MONO_NATIVE_U2;
4618 case MONO_TYPE_I1: return MONO_NATIVE_I1;
4619 case MONO_TYPE_U1: return MONO_NATIVE_U1;
4620 case MONO_TYPE_I2: return MONO_NATIVE_I2;
4621 case MONO_TYPE_U2: return MONO_NATIVE_U2;
4622 case MONO_TYPE_I4: return MONO_NATIVE_I4;
4623 case MONO_TYPE_U4: return MONO_NATIVE_U4;
4624 case MONO_TYPE_I8: return MONO_NATIVE_I8;
4625 case MONO_TYPE_U8: return MONO_NATIVE_U8;
4626 case MONO_TYPE_R4: return MONO_NATIVE_R4;
4627 case MONO_TYPE_R8: return MONO_NATIVE_R8;
4628 case MONO_TYPE_STRING:
4630 switch (mspec->native) {
4631 case MONO_NATIVE_BSTR:
4632 *conv = MONO_MARSHAL_CONV_STR_BSTR;
4633 return MONO_NATIVE_BSTR;
4634 case MONO_NATIVE_LPSTR:
4635 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4636 return MONO_NATIVE_LPSTR;
4637 case MONO_NATIVE_LPWSTR:
4638 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4639 return MONO_NATIVE_LPWSTR;
4640 case MONO_NATIVE_LPTSTR:
4641 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
4642 return MONO_NATIVE_LPTSTR;
4643 case MONO_NATIVE_ANSIBSTR:
4644 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
4645 return MONO_NATIVE_ANSIBSTR;
4646 case MONO_NATIVE_TBSTR:
4647 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
4648 return MONO_NATIVE_TBSTR;
4649 case MONO_NATIVE_BYVALTSTR:
4651 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
4653 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
4654 return MONO_NATIVE_BYVALTSTR;
4656 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);
4660 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4661 return MONO_NATIVE_LPWSTR;
4664 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4665 return MONO_NATIVE_LPSTR;
4667 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
4668 case MONO_TYPE_VALUETYPE: /*FIXME*/
4669 if (type->data.klass->enumtype) {
4670 t = type->data.klass->enum_basetype->type;
4673 if (type->data.klass == mono_defaults.handleref_class){
4674 *conv = MONO_MARSHAL_CONV_HANDLEREF;
4675 return MONO_NATIVE_INT;
4677 return MONO_NATIVE_STRUCT;
4678 case MONO_TYPE_SZARRAY:
4679 case MONO_TYPE_ARRAY:
4681 switch (mspec->native) {
4682 case MONO_NATIVE_BYVALARRAY:
4683 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
4684 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
4686 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
4687 return MONO_NATIVE_BYVALARRAY;
4688 case MONO_NATIVE_SAFEARRAY:
4689 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
4690 return MONO_NATIVE_SAFEARRAY;
4691 case MONO_NATIVE_LPARRAY:
4692 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4693 return MONO_NATIVE_LPARRAY;
4695 g_error ("cant marshal array as native type %02x", mspec->native);
4699 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4700 return MONO_NATIVE_LPARRAY;
4701 case MONO_TYPE_I: return MONO_NATIVE_INT;
4702 case MONO_TYPE_U: return MONO_NATIVE_UINT;
4703 case MONO_TYPE_CLASS:
4704 case MONO_TYPE_OBJECT: {
4705 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
4707 switch (mspec->native) {
4708 case MONO_NATIVE_STRUCT:
4709 return MONO_NATIVE_STRUCT;
4710 case MONO_NATIVE_CUSTOM:
4711 return MONO_NATIVE_CUSTOM;
4712 case MONO_NATIVE_INTERFACE:
4713 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
4714 return MONO_NATIVE_INTERFACE;
4715 case MONO_NATIVE_IDISPATCH:
4716 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
4717 return MONO_NATIVE_IDISPATCH;
4718 case MONO_NATIVE_IUNKNOWN:
4719 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
4720 return MONO_NATIVE_IUNKNOWN;
4721 case MONO_NATIVE_FUNC:
4722 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4723 type->data.klass == mono_defaults.delegate_class ||
4724 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4725 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4726 return MONO_NATIVE_FUNC;
4730 g_error ("cant marshal object as native type %02x", mspec->native);
4733 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4734 type->data.klass == mono_defaults.delegate_class ||
4735 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4736 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4737 return MONO_NATIVE_FUNC;
4739 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
4740 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
4741 return MONO_NATIVE_INT;
4743 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
4744 return MONO_NATIVE_STRUCT;
4746 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
4747 case MONO_TYPE_GENERICINST:
4748 type = &type->data.generic_class->container_class->byval_arg;
4751 case MONO_TYPE_TYPEDBYREF:
4753 g_error ("type 0x%02x not handled in marshal", t);
4755 return MONO_NATIVE_MAX;
4759 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
4762 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
4768 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
4769 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
4771 /* FIXME: Index translation */
4773 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4776 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
4780 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
4782 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
4784 switch (tok & MONO_METHODDEFORREF_MASK) {
4785 case MONO_METHODDEFORREF_METHODDEF:
4786 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
4787 case MONO_METHODDEFORREF_METHODREF:
4788 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
4790 g_assert_not_reached ();
4795 * mono_class_get_overrides_full:
4797 * Return the method overrides belonging to class @type_token in @overrides, and
4798 * the number of overrides in @num_overrides.
4800 * Returns: TRUE on success, FALSE on failure.
4803 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
4804 MonoGenericContext *generic_context)
4807 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
4810 guint32 cols [MONO_METHODIMPL_SIZE];
4811 MonoMethod **result;
4822 loc.col_idx = MONO_METHODIMPL_CLASS;
4823 loc.idx = mono_metadata_token_index (type_token);
4825 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4831 * We may end up in the middle of the rows...
4834 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
4839 while (end < tdef->rows) {
4840 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
4846 result = g_new (MonoMethod*, num * 2);
4847 for (i = 0; i < num; ++i) {
4850 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
4851 method = method_from_method_def_or_ref (
4852 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
4855 result [i * 2] = method;
4856 method = method_from_method_def_or_ref (
4857 image, cols [MONO_METHODIMPL_BODY], generic_context);
4860 result [i * 2 + 1] = method;
4863 *overrides = result;
4865 *num_overrides = num;
4870 * mono_guid_to_string:
4872 * Converts a 16 byte Microsoft GUID to the standard string representation.
4875 mono_guid_to_string (const guint8 *guid)
4877 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
4878 guid[3], guid[2], guid[1], guid[0],
4882 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
4886 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
4888 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
4889 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
4890 guint32 i, token, found;
4891 MonoClass *klass, **res;
4892 GList *cons = NULL, *tmp;
4893 MonoGenericContext *context = &container->context;
4895 *constraints = NULL;
4897 for (i = 0; i < tdef->rows; ++i) {
4898 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
4899 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
4900 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
4901 klass = mono_class_get_full (image, token, context);
4902 cons = g_list_append (cons, klass);
4905 /* contiguous list finished */
4912 res = g_new0 (MonoClass*, found + 1);
4913 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
4914 res [i] = tmp->data;
4922 * mono_metadata_get_generic_param_row:
4925 * @token: TypeOrMethodDef token, owner for GenericParam
4926 * @owner: coded token, set on return
4928 * Returns: 1-based row-id in the GenericParam table whose
4929 * owner is @token. 0 if not found.
4932 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
4934 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4935 guint32 cols [MONO_GENERICPARAM_SIZE];
4942 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
4943 *owner = MONO_TYPEORMETHOD_TYPE;
4944 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
4945 *owner = MONO_TYPEORMETHOD_METHOD;
4947 g_error ("wrong token %x to get_generic_param_row", token);
4950 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
4952 for (i = 0; i < tdef->rows; ++i) {
4953 mono_metadata_decode_row (tdef, i, cols, MONO_GENERICPARAM_SIZE);
4954 if (cols [MONO_GENERICPARAM_OWNER] == *owner)
4962 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
4965 return mono_metadata_get_generic_param_row (image, token, &owner);
4969 * mono_metadata_load_generic_param_constraints:
4971 * Load the generic parameter constraints for the newly created generic type or method
4972 * represented by @token and @container. The @container is the new container which has
4973 * been returned by a call to mono_metadata_load_generic_params() with this @token.
4976 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
4977 MonoGenericContainer *container)
4979 guint32 start_row, i, owner;
4980 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
4982 for (i = 0; i < container->type_argc; i++)
4983 get_constraints (image, start_row + i, &container->type_params [i].constraints, container);
4987 * mono_metadata_load_generic_params:
4989 * Load the type parameters from the type or method definition @token.
4991 * Use this method after parsing a type or method definition to figure out whether it's a generic
4992 * type / method. When parsing a method definition, @parent_container points to the generic container
4993 * of the current class, if any.
4995 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
4996 * creating the type.
4998 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
5000 * LOCKING: Assumes the loader lock is held.
5003 MonoGenericContainer *
5004 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
5006 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5007 guint32 cols [MONO_GENERICPARAM_SIZE];
5008 guint32 i, owner = 0, n;
5009 MonoGenericContainer *container;
5010 MonoGenericParam *params;
5011 MonoGenericContext *context;
5013 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
5015 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5018 container = mono_mempool_alloc0 (image->mempool, sizeof (MonoGenericContainer));
5021 params = g_realloc (params, sizeof (MonoGenericParam) * n);
5022 params [n - 1].owner = container;
5023 params [n - 1].pklass = NULL;
5024 params [n - 1].flags = cols [MONO_GENERICPARAM_FLAGS];
5025 params [n - 1].num = cols [MONO_GENERICPARAM_NUMBER];
5026 params [n - 1].name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
5027 params [n - 1].constraints = NULL;
5028 if (++i > tdef->rows)
5030 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5031 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
5033 container->type_argc = n;
5034 container->type_params = mono_mempool_alloc0 (image->mempool, sizeof (MonoGenericParam) * n);
5035 memcpy (container->type_params, params, sizeof (MonoGenericParam) * n);
5037 container->parent = parent_container;
5039 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5040 container->is_method = 1;
5042 g_assert (container->parent == NULL || container->is_method);
5044 context = &container->context;
5045 if (container->is_method) {
5046 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
5047 context->method_inst = mono_get_shared_generic_inst (container);
5049 context->class_inst = mono_get_shared_generic_inst (container);
5056 mono_get_shared_generic_inst (MonoGenericContainer *container)
5058 MonoType **type_argv;
5060 MonoGenericInst *nginst;
5063 type_argv = g_new0 (MonoType *, container->type_argc);
5064 helper = g_new0 (MonoType, container->type_argc);
5066 for (i = 0; i < container->type_argc; i++) {
5067 MonoType *t = &helper [i];
5069 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5070 t->data.generic_param = &container->type_params [i];
5075 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
5084 mono_type_is_byref (MonoType *type)
5090 mono_type_get_type (MonoType *type)
5095 /* For MONO_TYPE_FNPTR */
5096 MonoMethodSignature*
5097 mono_type_get_signature (MonoType *type)
5099 return type->data.method;
5102 /* For MONO_TYPE_CLASS, VALUETYPE */
5104 mono_type_get_class (MonoType *type)
5106 return type->data.klass;
5109 /* For MONO_TYPE_ARRAY */
5111 mono_type_get_array_type (MonoType *type)
5113 return type->data.array;
5116 /* For MONO_TYPE_PTR */
5118 mono_type_get_ptr_type (MonoType *type)
5120 return type->data.type;
5124 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
5126 /* FIXME: implement */
5131 mono_signature_get_return_type (MonoMethodSignature *sig)
5137 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
5143 /* start from the first */
5144 if (sig->param_count) {
5145 *iter = &sig->params [0];
5146 return sig->params [0];
5154 if (type < &sig->params [sig->param_count]) {
5162 mono_signature_get_param_count (MonoMethodSignature *sig)
5164 return sig->param_count;
5168 mono_signature_get_call_conv (MonoMethodSignature *sig)
5170 return sig->call_convention;
5174 mono_signature_vararg_start (MonoMethodSignature *sig)
5176 return sig->sentinelpos;
5180 mono_signature_is_instance (MonoMethodSignature *sig)
5182 return sig->hasthis;
5186 mono_signature_explicit_this (MonoMethodSignature *sig)
5188 return sig->explicit_this;
5191 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
5193 mono_aligned_addr_hash (gconstpointer ptr)
5195 return GPOINTER_TO_UINT (ptr) >> 3;