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);
957 const char *data = t->base + idx * t->row_size;
959 g_assert (res_size == count);
961 for (i = 0; i < count; i++) {
962 int n = mono_metadata_table_size (bitfield, i);
966 res [i] = *data; break;
968 res [i] = read16 (data); break;
970 res [i] = read32 (data); break;
972 g_assert_not_reached ();
979 * mono_metadata_decode_row_col:
980 * @t: table to extract information from.
981 * @idx: index for row in table.
982 * @col: column in the row.
984 * This function returns the value of column @col from the @idx
985 * row in the table @t.
988 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
990 guint32 bitfield = t->size_bitfield;
992 register const char *data = t->base + idx * t->row_size;
995 g_assert (col < mono_metadata_table_count (bitfield));
997 n = mono_metadata_table_size (bitfield, 0);
998 for (i = 0; i < col; ++i) {
1000 n = mono_metadata_table_size (bitfield, i + 1);
1006 return read16 (data);
1008 return read32 (data);
1010 g_assert_not_reached ();
1016 * mono_metadata_decode_blob_size:
1017 * @ptr: pointer to a blob object
1018 * @rptr: the new position of the pointer
1020 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1022 * Returns: the size of the blob object
1025 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1027 const unsigned char *ptr = (const unsigned char *)xptr;
1030 if ((*ptr & 0x80) == 0){
1031 size = ptr [0] & 0x7f;
1033 } else if ((*ptr & 0x40) == 0){
1034 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1037 size = ((ptr [0] & 0x1f) << 24) +
1049 * mono_metadata_decode_value:
1050 * @ptr: pointer to decode from
1051 * @rptr: the new position of the pointer
1053 * This routine decompresses 32-bit values as specified in the "Blob and
1054 * Signature" section (22.2)
1056 * Returns: the decoded value
1059 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1061 const unsigned char *ptr = (const unsigned char *) _ptr;
1062 unsigned char b = *ptr;
1065 if ((b & 0x80) == 0){
1068 } else if ((b & 0x40) == 0){
1069 len = ((b & 0x3f) << 8 | ptr [1]);
1072 len = ((b & 0x1f) << 24) |
1085 * mono_metadata_decode_signed_value:
1086 * @ptr: pointer to decode from
1087 * @rptr: the new position of the pointer
1089 * This routine decompresses 32-bit signed values
1090 * (not specified in the spec)
1092 * Returns: the decoded value
1095 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1097 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1098 gint32 ival = uval >> 1;
1101 /* ival is a truncated 2's complement negative number. */
1103 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1106 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1107 return ival - 0x2000;
1108 if (ival < 0x10000000)
1109 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1110 return ival - 0x10000000;
1111 g_assert (ival < 0x20000000);
1112 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1113 return ival - 0x20000000;
1117 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1118 * using the *Ptr tables in uncompressed metadata, if they are available.
1120 * FIXME: The caller is not forced to call this function, which is error-prone, since
1121 * forgetting to call it would only show up as a bug on uncompressed metadata.
1124 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1126 if (!image->uncompressed_metadata)
1130 case MONO_TABLE_METHOD:
1131 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1132 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1135 case MONO_TABLE_FIELD:
1136 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1137 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1140 case MONO_TABLE_EVENT:
1141 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1142 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1145 case MONO_TABLE_PROPERTY:
1146 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1147 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1150 case MONO_TABLE_PARAM:
1151 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1152 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1161 * mono_metadata_decode_table_row:
1163 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1164 * uncompressed metadata into account, so it should be used to access the
1165 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1166 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1169 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1171 if (image->uncompressed_metadata)
1172 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1174 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1178 * mono_metadata_decode_table_row_col:
1180 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1181 * uncompressed metadata into account, so it should be used to access the
1182 * Method, Field, Param and Event tables.
1184 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1186 if (image->uncompressed_metadata)
1187 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1189 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1193 * mono_metadata_parse_typedef_or_ref:
1194 * @m: a metadata context.
1195 * @ptr: a pointer to an encoded TypedefOrRef in @m
1196 * @rptr: pointer updated to match the end of the decoded stream
1198 * Returns: a token valid in the @m metadata decoded from
1199 * the compressed representation.
1202 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1205 token = mono_metadata_decode_value (ptr, &ptr);
1208 return mono_metadata_token_from_dor (token);
1212 * mono_metadata_parse_custom_mod:
1213 * @m: a metadata context.
1214 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1215 * @ptr: a pointer to (possibly) the start of a custom modifier list
1216 * @rptr: pointer updated to match the end of the decoded stream
1218 * Checks if @ptr points to a type custom modifier compressed representation.
1220 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1223 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1225 MonoCustomMod local;
1226 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1229 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1230 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1237 * mono_metadata_parse_array_full:
1238 * @m: a metadata context.
1239 * @ptr: a pointer to an encoded array description.
1240 * @rptr: pointer updated to match the end of the decoded stream
1242 * Decodes the compressed array description found in the metadata @m at @ptr.
1244 * Returns: a #MonoArrayType structure describing the array type
1245 * and dimensions. Memory is allocated from the image mempool.
1247 * LOCKING: Assumes the loader lock is held.
1250 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1251 const char *ptr, const char **rptr)
1254 MonoArrayType *array = mono_mempool_alloc0 (m->mempool, sizeof (MonoArrayType));
1257 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1260 array->eklass = mono_class_from_mono_type (etype);
1261 array->rank = mono_metadata_decode_value (ptr, &ptr);
1263 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1264 if (array->numsizes)
1265 array->sizes = g_new0 (int, array->numsizes);
1266 for (i = 0; i < array->numsizes; ++i)
1267 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1269 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1270 if (array->numlobounds)
1271 array->lobounds = g_new0 (int, array->numlobounds);
1272 for (i = 0; i < array->numlobounds; ++i)
1273 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1281 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1283 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1287 * mono_metadata_free_array:
1288 * @array: array description
1290 * Frees the array description returned from mono_metadata_parse_array().
1293 mono_metadata_free_array (MonoArrayType *array)
1295 g_free (array->sizes);
1296 g_free (array->lobounds);
1301 * need to add common field and param attributes combinations:
1304 * public static literal
1307 * private static literal
1309 static const MonoType
1311 /* data, attrs, type, nmods, byref, pinned */
1312 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1313 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1314 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1315 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1316 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1317 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1318 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1319 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1320 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1321 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1322 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1323 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1324 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1325 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1326 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1327 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1328 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1329 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1330 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1331 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1332 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1333 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1334 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1335 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1336 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1337 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1338 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1339 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1340 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1341 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1342 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1343 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1344 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1345 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1348 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1350 static GHashTable *type_cache = NULL;
1351 static GHashTable *generic_inst_cache = NULL;
1352 static GHashTable *generic_class_cache = NULL;
1353 static int next_generic_inst_id = 0;
1356 * Protected by the loader lock.
1357 * It has a MonoMethodInflated* as key and value.
1358 * The key lookup will just access the declaring and context fields
1360 static GHashTable *generic_method_cache = NULL;
1363 * Protected by the loader lock.
1364 * It has a MonoInflatedMethodSignature* as key and value.
1366 static GHashTable *generic_signature_cache = NULL;
1368 static guint mono_generic_class_hash (gconstpointer data);
1371 * MonoTypes with modifies are never cached, so we never check or use that field.
1374 mono_type_hash (gconstpointer data)
1376 const MonoType *type = (const MonoType *) data;
1377 if (type->type == MONO_TYPE_GENERICINST)
1378 return mono_generic_class_hash (type->data.generic_class);
1380 return type->type | (type->byref << 8) | (type->attrs << 9);
1384 mono_type_equal (gconstpointer ka, gconstpointer kb)
1386 const MonoType *a = (const MonoType *) ka;
1387 const MonoType *b = (const MonoType *) kb;
1389 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1391 /* need other checks */
1396 mono_generic_inst_hash (gconstpointer data)
1398 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1402 for (i = 0; i < ginst->type_argc; ++i) {
1404 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1407 return hash ^ (ginst->is_open << 8);
1411 mono_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1413 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1414 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1417 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1419 for (i = 0; i < a->type_argc; ++i) {
1420 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], FALSE))
1427 mono_generic_class_hash (gconstpointer data)
1429 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1430 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1433 hash += gclass->is_tb_open;
1434 hash += mono_metadata_generic_context_hash (&gclass->context);
1440 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1442 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1443 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1445 return _mono_metadata_generic_class_equal (a, b, FALSE);
1449 * mono_metadata_init:
1451 * Initialize the global variables of this module.
1452 * This is a Mono runtime internal function.
1455 mono_metadata_init (void)
1459 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1460 generic_inst_cache = g_hash_table_new_full (mono_generic_inst_hash, mono_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
1461 generic_class_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
1463 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1464 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1468 * mono_metadata_cleanup:
1470 * Free all resources used by this module.
1471 * This is a Mono runtime internal function.
1474 mono_metadata_cleanup (void)
1476 g_hash_table_destroy (type_cache);
1477 g_hash_table_destroy (generic_inst_cache);
1478 g_hash_table_destroy (generic_class_cache);
1479 if (generic_method_cache)
1480 g_hash_table_destroy (generic_method_cache);
1481 if (generic_signature_cache)
1482 g_hash_table_destroy (generic_signature_cache);
1484 generic_inst_cache = NULL;
1485 generic_class_cache = NULL;
1486 generic_method_cache = NULL;
1487 generic_signature_cache = NULL;
1491 * mono_metadata_parse_type:
1492 * @m: metadata context
1493 * @mode: king of type that may be found at @ptr
1494 * @opt_attrs: optional attributes to store in the returned type
1495 * @ptr: pointer to the type representation
1496 * @rptr: pointer updated to match the end of the decoded stream
1498 * Decode a compressed type description found at @ptr in @m.
1499 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1500 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1501 * This function can be used to decode type descriptions in method signatures,
1502 * field signatures, locals signatures etc.
1504 * To parse a generic type, `generic_container' points to the current class'es
1505 * (the `generic_container' field in the MonoClass) or the current generic method's
1506 * (the `generic_container' field in the MonoMethodNormal) generic container.
1507 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1508 * this MonoGenericContainer.
1509 * This is a Mono runtime internal function.
1511 * LOCKING: Acquires the loader lock.
1513 * Returns: a #MonoType structure representing the decoded type.
1516 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1517 short opt_attrs, const char *ptr, const char **rptr)
1519 MonoType *type, *cached;
1521 gboolean byref = FALSE;
1522 gboolean pinned = FALSE;
1523 const char *tmp_ptr;
1527 mono_loader_lock ();
1529 * According to the spec, custom modifiers should come before the byref
1530 * flag, but the IL produced by ilasm from the following signature:
1531 * object modopt(...) &
1532 * starts with a byref flag, followed by the modifiers. (bug #49802)
1533 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1534 * it would be better to treat byref as real type constructor instead of
1536 * Also, pinned should come before anything else, but some MSV++ produced
1537 * assemblies violate this (#bug 61990).
1540 /* Count the modifiers first */
1545 case MONO_TYPE_PINNED:
1546 case MONO_TYPE_BYREF:
1549 case MONO_TYPE_CMOD_REQD:
1550 case MONO_TYPE_CMOD_OPT:
1552 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1560 type = mono_mempool_alloc0 (m->mempool, sizeof (MonoType) + ((gint32)count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod));
1561 type->num_mods = count;
1563 g_warning ("got more than 64 modifiers in type");
1566 memset (type, 0, sizeof (MonoType));
1569 /* Parse pinned, byref and custom modifiers */
1574 case MONO_TYPE_PINNED:
1578 case MONO_TYPE_BYREF:
1582 case MONO_TYPE_CMOD_REQD:
1583 case MONO_TYPE_CMOD_OPT:
1584 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1592 type->attrs = opt_attrs;
1593 type->byref = byref;
1594 type->pinned = pinned ? 1 : 0;
1596 if (!do_mono_metadata_parse_type (type, m, container, ptr, &ptr)) {
1597 mono_loader_unlock ();
1604 if (!type->num_mods) {
1605 /* no need to free type here, because it is on the stack */
1606 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1607 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1609 /* Consider the case:
1611 class Foo<T> { class Bar {} }
1612 class Test : Foo<Test>.Bar {}
1614 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1615 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1617 We ensure that the MonoClass is in a state that we can canonicalize to:
1619 klass->byval_arg.data.klass == klass
1620 klass->this_arg.data.klass == klass
1622 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1624 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1625 of a MonoClass which currently holds the loader lock. 'type' is local.
1627 if (ret->data.klass == type->data.klass) {
1628 mono_loader_unlock ();
1632 /* No need to use locking since nobody is modifying the hash table */
1633 if ((cached = g_hash_table_lookup (type_cache, type))) {
1634 mono_loader_unlock ();
1639 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1641 if (type == &stype) {
1642 type = mono_mempool_alloc (m->mempool, sizeof (MonoType));
1643 memcpy (type, &stype, sizeof (MonoType));
1645 mono_loader_unlock ();
1650 * LOCKING: Assumes the loader lock is held.
1653 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1654 const char *ptr, const char **rptr)
1656 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1660 * mono_metadata_get_param_attrs:
1662 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1663 * returned memory needs to be freed by the caller. If all the param attributes are
1664 * 0, then NULL is returned.
1667 mono_metadata_get_param_attrs (MonoImage *m, int def)
1669 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1670 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1671 guint32 cols [MONO_PARAM_SIZE];
1672 guint lastp, i, param_index = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def - 1, MONO_METHOD_PARAMLIST);
1675 if (def < methodt->rows)
1676 lastp = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def, MONO_METHOD_PARAMLIST);
1678 lastp = paramt->rows + 1;
1680 for (i = param_index; i < lastp; ++i) {
1681 mono_metadata_decode_row (&m->tables [MONO_TABLE_PARAM], i - 1, cols, MONO_PARAM_SIZE);
1682 if (cols [MONO_PARAM_FLAGS]) {
1684 pattrs = g_new0 (int, 1 + (lastp - param_index));
1685 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1693 * mono_metadata_parse_signature_full:
1694 * @image: metadata context
1695 * @generic_container: generic container
1696 * @toke: metadata token
1698 * Decode a method signature stored in the STANDALONESIG table
1700 * LOCKING: Assumes the loader lock is held.
1702 * Returns: a MonoMethodSignature describing the signature.
1704 MonoMethodSignature*
1705 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1707 MonoTableInfo *tables = image->tables;
1708 guint32 idx = mono_metadata_token_index (token);
1713 return mono_lookup_dynamic_token (image, token, NULL);
1715 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1717 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1719 ptr = mono_metadata_blob_heap (image, sig);
1720 mono_metadata_decode_blob_size (ptr, &ptr);
1722 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1726 * mono_metadata_parse_signature:
1727 * @image: metadata context
1728 * @toke: metadata token
1730 * Decode a method signature stored in the STANDALONESIG table
1732 * Returns: a MonoMethodSignature describing the signature.
1734 MonoMethodSignature*
1735 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1737 return mono_metadata_parse_signature_full (image, NULL, token);
1741 * mono_metadata_signature_alloc:
1742 * @image: metadata context
1743 * @nparmas: number of parameters in the signature
1745 * Allocate a MonoMethodSignature structure with the specified number of params.
1746 * The return type and the params types need to be filled later.
1747 * This is a Mono runtime internal function.
1749 * LOCKING: Assumes the loader lock is held.
1751 * Returns: the new MonoMethodSignature structure.
1753 MonoMethodSignature*
1754 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1756 MonoMethodSignature *sig;
1758 mono_loader_lock ();
1759 sig = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodSignature) + ((gint32)nparams - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
1760 sig->param_count = nparams;
1761 sig->sentinelpos = -1;
1762 mono_loader_unlock ();
1768 * mono_metadata_signature_dup:
1769 * @sig: method signature
1771 * Duplicate an existing MonoMethodSignature so it can be modified.
1772 * This is a Mono runtime internal function.
1774 * Returns: the new MonoMethodSignature structure.
1776 MonoMethodSignature*
1777 mono_metadata_signature_dup (MonoMethodSignature *sig)
1781 sigsize = sizeof (MonoMethodSignature) + (sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *);
1782 return g_memdup (sig, sigsize);
1786 * mono_metadata_parse_method_signature:
1787 * @m: metadata context
1788 * @generic_container: generics container
1789 * @def: the MethodDef index or 0 for Ref signatures.
1790 * @ptr: pointer to the signature metadata representation
1791 * @rptr: pointer updated to match the end of the decoded stream
1793 * Decode a method signature stored at @ptr.
1794 * This is a Mono runtime internal function.
1796 * LOCKING: Assumes the loader lock is held.
1798 * Returns: a MonoMethodSignature describing the signature.
1800 MonoMethodSignature *
1801 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1802 int def, const char *ptr, const char **rptr)
1804 MonoMethodSignature *method;
1805 int i, *pattrs = NULL;
1806 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1807 guint32 gen_param_count = 0;
1808 gboolean is_open = FALSE;
1811 gen_param_count = 1;
1816 call_convention = *ptr & 0x0F;
1818 if (gen_param_count)
1819 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1820 param_count = mono_metadata_decode_value (ptr, &ptr);
1823 pattrs = mono_metadata_get_param_attrs (m, def);
1824 method = mono_metadata_signature_alloc (m, param_count);
1825 method->hasthis = hasthis;
1826 method->explicit_this = explicit_this;
1827 method->call_convention = call_convention;
1828 method->generic_param_count = gen_param_count;
1830 if (call_convention != 0xa) {
1831 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1833 mono_metadata_free_method_signature (method);
1837 is_open = mono_class_is_open_constructed_type (method->ret);
1840 for (i = 0; i < method->param_count; ++i) {
1841 if (*ptr == MONO_TYPE_SENTINEL) {
1842 if (method->call_convention != MONO_CALL_VARARG || def)
1843 g_error ("found sentinel for methoddef or no vararg method");
1844 if (method->sentinelpos >= 0)
1845 g_error ("found sentinel twice in the same signature");
1846 method->sentinelpos = i;
1849 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1850 if (!method->params [i]) {
1851 mono_metadata_free_method_signature (method);
1856 is_open = mono_class_is_open_constructed_type (method->params [i]);
1859 /* The sentinel could be missing if the caller does not pass any additional arguments */
1860 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1861 method->sentinelpos = method->param_count;
1863 method->has_type_parameters = is_open;
1865 if (def && (method->call_convention == MONO_CALL_VARARG))
1866 method->sentinelpos = method->param_count;
1873 * Add signature to a cache and increase ref count...
1880 * mono_metadata_parse_method_signature:
1881 * @m: metadata context
1882 * @def: the MethodDef index or 0 for Ref signatures.
1883 * @ptr: pointer to the signature metadata representation
1884 * @rptr: pointer updated to match the end of the decoded stream
1886 * Decode a method signature stored at @ptr.
1887 * This is a Mono runtime internal function.
1889 * LOCKING: Assumes the loader lock is held.
1891 * Returns: a MonoMethodSignature describing the signature.
1893 MonoMethodSignature *
1894 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1896 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1900 * mono_metadata_free_method_signature:
1901 * @sig: signature to destroy
1903 * Free the memory allocated in the signature @sig.
1904 * This method needs to be robust and work also on partially-built
1905 * signatures, so it does extra checks.
1908 mono_metadata_free_method_signature (MonoMethodSignature *sig)
1910 /* Everything is allocated from mempools */
1914 mono_metadata_free_type (sig->ret);
1915 for (i = 0; i < sig->param_count; ++i) {
1916 if (sig->params [i])
1917 mono_metadata_free_type (sig->params [i]);
1923 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
1927 /* Allocated in inflate_generic_signature () */
1929 mono_metadata_free_type (sig->ret);
1930 for (i = 0; i < sig->param_count; ++i) {
1931 if (sig->params [i])
1932 mono_metadata_free_type (sig->params [i]);
1938 inflated_method_equal (gconstpointer a, gconstpointer b)
1940 const MonoMethodInflated *ma = a;
1941 const MonoMethodInflated *mb = b;
1942 if (ma->declaring != mb->declaring)
1944 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
1948 inflated_method_hash (gconstpointer a)
1950 const MonoMethodInflated *ma = a;
1951 return mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring);
1955 inflated_signature_equal (gconstpointer a, gconstpointer b)
1957 const MonoInflatedMethodSignature *sig1 = a;
1958 const MonoInflatedMethodSignature *sig2 = b;
1960 /* sig->sig is assumed to be canonized */
1961 if (sig1->sig != sig2->sig)
1963 /* The generic instances are canonized */
1964 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
1968 inflated_signature_hash (gconstpointer a)
1970 const MonoInflatedMethodSignature *sig = a;
1972 /* sig->sig is assumed to be canonized */
1973 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
1977 dump_ginst (MonoGenericInst *ginst)
1982 g_print ("Ginst: <");
1983 for (i = 0; i < ginst->type_argc; ++i) {
1986 name = mono_type_get_name (ginst->type_argv [i]);
1987 g_print ("%s", name);
1993 static gboolean type_in_image (MonoType *type, MonoImage *image);
1996 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
1998 gpointer iter = NULL;
2001 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2002 if (type_in_image (p, image))
2005 return type_in_image (mono_signature_get_return_type (sig), image);
2009 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2013 for (i = 0; i < ginst->type_argc; ++i) {
2014 if (type_in_image (ginst->type_argv [i], image))
2022 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2024 return gclass->container_class->image == image ||
2025 ginst_in_image (gclass->context.class_inst, image);
2029 type_in_image (MonoType *type, MonoImage *image)
2032 switch (type->type) {
2033 case MONO_TYPE_GENERICINST:
2034 return gclass_in_image (type->data.generic_class, image);
2036 type = type->data.type;
2038 case MONO_TYPE_SZARRAY:
2039 type = &type->data.klass->byval_arg;
2041 case MONO_TYPE_ARRAY:
2042 type = &type->data.array->eklass->byval_arg;
2044 case MONO_TYPE_FNPTR:
2045 return signature_in_image (type->data.method, image);
2047 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2048 return image == mono_class_from_mono_type (type)->image;
2055 } CleanForImageUserData;
2058 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2060 MonoGenericClass *gclass = key;
2061 CleanForImageUserData *user_data = data;
2063 if (!gclass_in_image (gclass, user_data->image))
2066 user_data->list = g_slist_prepend (user_data->list, gclass);
2071 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2073 MonoGenericInst *ginst = key;
2074 CleanForImageUserData *user_data = data;
2076 if (!ginst_in_image (ginst, user_data->image))
2079 user_data->list = g_slist_prepend (user_data->list, ginst);
2084 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2086 MonoImage *image = data;
2087 MonoMethodInflated *method = key;
2089 return method->declaring->klass->image == image ||
2090 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2091 (method->context.method_inst && ginst_in_image (method->context.method_inst, image));
2095 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2097 MonoImage *image = data;
2098 MonoInflatedMethodSignature *sig = key;
2100 return /* signature_in_image (sig->sig, image) || */
2101 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2102 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2106 mono_metadata_clean_for_image (MonoImage *image)
2108 CleanForImageUserData ginst_data, gclass_data;
2111 /* The data structures could reference each other so we delete them in two phases */
2112 ginst_data.image = gclass_data.image = image;
2113 ginst_data.list = gclass_data.list = NULL;
2115 mono_loader_lock ();
2116 /* Collect the items to delete and remove them from the hash table */
2117 g_hash_table_foreach_steal (generic_inst_cache, steal_ginst_in_image, &ginst_data);
2118 g_hash_table_foreach_steal (generic_class_cache, steal_gclass_in_image, &gclass_data);
2119 if (generic_method_cache)
2120 g_hash_table_foreach_remove (generic_method_cache, inflated_method_in_image, image);
2121 if (generic_signature_cache)
2122 g_hash_table_foreach_remove (generic_signature_cache, inflated_signature_in_image, image);
2123 /* Delete the removed items */
2124 for (l = ginst_data.list; l; l = l->next)
2125 free_generic_inst (l->data);
2126 for (l = gclass_data.list; l; l = l->next)
2127 free_generic_class (l->data);
2128 g_slist_free (ginst_data.list);
2129 g_slist_free (gclass_data.list);
2130 mono_loader_unlock ();
2134 free_inflated_method (MonoMethodInflated *imethod)
2137 MonoMethod *method = (MonoMethod*)imethod;
2139 if (method->signature)
2140 mono_metadata_free_inflated_signature (method->signature);
2142 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))) {
2143 MonoMethodNormal* mn = (MonoMethodNormal*) method;
2144 MonoMethodHeader *header = mn->header;
2147 /* Allocated in inflate_generic_header () */
2148 for (i = 0; i < header->num_locals; ++i)
2149 mono_metadata_free_type (header->locals [i]);
2150 g_free (header->clauses);
2159 free_generic_inst (MonoGenericInst *ginst)
2163 for (i = 0; i < ginst->type_argc; ++i)
2164 mono_metadata_free_type (ginst->type_argv [i]);
2165 g_free (ginst->type_argv);
2171 free_generic_class (MonoGenericClass *gclass)
2175 /* FIXME: The dynamic case */
2176 if (gclass->cached_class && !gclass->cached_class->image->dynamic && !mono_generic_class_is_generic_type_definition (gclass)) {
2177 MonoClass *class = gclass->cached_class;
2179 /* Allocated in mono_class_init () */
2180 g_free (class->methods);
2181 g_free (class->properties);
2182 /* Allocated in mono_class_setup_fields () */
2183 if (class->fields) {
2184 for (i = 0; i < class->field.count; ++i) {
2185 g_free (class->fields [i].generic_info);
2186 mono_metadata_free_type (class->fields [i].type);
2189 /* Allocated in mono_generic_class_get_class () */
2190 g_free (class->interfaces);
2197 free_inflated_signature (MonoInflatedMethodSignature *sig)
2199 mono_metadata_free_inflated_signature (sig->sig);
2204 * LOCKING: assumes the loader lock is held.
2207 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2210 if (!generic_method_cache)
2211 generic_method_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2212 g_hash_table_insert (generic_method_cache, method, method);
2215 if (generic_method_cache)
2216 return g_hash_table_lookup (generic_method_cache, method);
2222 * mono_metadata_get_inflated_signature:
2224 * Given an inflated signature and a generic context, return a canonical copy of the
2225 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2227 MonoMethodSignature *
2228 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2230 MonoInflatedMethodSignature helper;
2231 MonoInflatedMethodSignature *res;
2233 mono_loader_lock ();
2234 if (!generic_signature_cache)
2235 generic_signature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2238 helper.context.class_inst = context->class_inst;
2239 helper.context.method_inst = context->method_inst;
2240 res = g_hash_table_lookup (generic_signature_cache, &helper);
2242 res = g_new0 (MonoInflatedMethodSignature, 1);
2244 res->context.class_inst = context->class_inst;
2245 res->context.method_inst = context->method_inst;
2246 g_hash_table_insert (generic_signature_cache, res, res);
2249 mono_loader_unlock ();
2254 * mono_metadata_get_generic_inst:
2256 * Given a list of types, return a MonoGenericInst that represents that list.
2257 * The returned MonoGenericInst has its own copy of the list of types. The list
2258 * passed in the argument can be freed, modified or disposed of.
2262 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2264 MonoGenericInst *ginst;
2265 MonoGenericInst helper;
2268 helper.type_argc = type_argc;
2269 helper.type_argv = type_argv;
2272 for (i = 0; i < type_argc; ++i)
2273 if (mono_class_is_open_constructed_type (type_argv [i]))
2275 helper.is_open = (i < type_argc);
2277 /*dump_ginst (&helper);*/
2278 mono_loader_lock ();
2279 ginst = g_hash_table_lookup (generic_inst_cache, &helper);
2281 mono_loader_unlock ();
2282 /*g_print (" found cached\n");*/
2286 ginst = g_new0 (MonoGenericInst, 1);
2287 ginst->type_argc = type_argc;
2288 ginst->type_argv = g_new (MonoType*, type_argc);
2289 ginst->id = ++next_generic_inst_id;
2290 ginst->is_open = helper.is_open;
2292 for (i = 0; i < type_argc; ++i)
2293 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2295 g_hash_table_insert (generic_inst_cache, ginst, ginst);
2297 mono_loader_unlock ();
2298 /*g_print (" inserted\n");*/
2303 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2305 MonoGenericContainer *container = container_class->generic_container;
2307 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2309 return inst == container->context.class_inst;
2313 * mono_metadata_lookup_generic_class:
2315 * Returns a MonoGenericClass with the given properties.
2319 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2321 MonoGenericClass *gclass;
2322 MonoGenericClass helper;
2323 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2325 helper.container_class = container_class;
2326 helper.context.class_inst = inst;
2327 helper.context.method_inst = NULL;
2328 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2329 helper.is_tb_open = is_tb_open;
2330 helper.cached_class = NULL;
2332 mono_loader_lock ();
2334 gclass = g_hash_table_lookup (generic_class_cache, &helper);
2336 /* A tripwire just to keep us honest */
2337 g_assert (!helper.cached_class);
2340 mono_loader_unlock ();
2345 MonoDynamicGenericClass *dgclass = g_new0 (MonoDynamicGenericClass, 1);
2346 gclass = &dgclass->generic_class;
2347 gclass->is_dynamic = 1;
2349 gclass = g_new0 (MonoGenericClass, 1);
2352 gclass->is_tb_open = is_tb_open;
2353 gclass->container_class = container_class;
2354 gclass->context.class_inst = inst;
2355 gclass->context.method_inst = NULL;
2356 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2357 gclass->cached_class = container_class;
2359 g_hash_table_insert (generic_class_cache, gclass, gclass);
2361 mono_loader_unlock ();
2367 * mono_metadata_inflate_generic_inst:
2369 * Instantiate the generic instance @ginst with the context @context.
2373 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context)
2375 MonoType **type_argv;
2376 MonoGenericInst *nginst;
2379 if (!ginst->is_open)
2382 type_argv = g_new0 (MonoType*, ginst->type_argc);
2384 for (i = 0; i < ginst->type_argc; i++)
2385 type_argv [i] = mono_class_inflate_generic_type (ginst->type_argv [i], context);
2387 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2389 for (i = 0; i < ginst->type_argc; i++)
2390 mono_metadata_free_type (type_argv [i]);
2397 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2398 int count, const char *ptr, const char **rptr)
2400 MonoType **type_argv;
2401 MonoGenericInst *ginst;
2404 type_argv = g_new0 (MonoType*, count);
2406 for (i = 0; i < count; i++) {
2407 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2418 ginst = mono_metadata_get_generic_inst (count, type_argv);
2426 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2427 const char *ptr, const char **rptr)
2429 MonoGenericInst *inst;
2434 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
2438 gklass = mono_class_from_mono_type (gtype);
2439 if (!gklass->generic_container)
2442 count = mono_metadata_decode_value (ptr, &ptr);
2443 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
2450 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
2456 * @gc: The generic container to normalize
2457 * @type: The kind of generic parameters the resulting generic-container should contain
2460 static MonoGenericContainer *
2461 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
2463 gboolean is_var = (type == MONO_TYPE_VAR);
2467 g_assert (is_var || type == MONO_TYPE_MVAR);
2470 if (gc->is_method || gc->parent)
2472 * The current MonoGenericContainer is a generic method -> its `parent'
2473 * points to the containing class'es container.
2482 * mono_metadata_parse_generic_param:
2483 * @generic_container: Our MonoClass's or MonoMethodNormal's MonoGenericContainer;
2484 * see mono_metadata_parse_type_full() for details.
2485 * Internal routine to parse a generic type parameter.
2486 * LOCKING: Assumes the loader lock is held.
2488 static MonoGenericParam *
2489 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
2490 MonoTypeEnum type, const char *ptr, const char **rptr)
2492 int index = mono_metadata_decode_value (ptr, &ptr);
2496 generic_container = select_container (generic_container, type);
2497 if (!generic_container) {
2498 /* Create dummy MonoGenericParam */
2499 MonoGenericParam *param = mono_mempool_alloc0 (m->mempool, sizeof (MonoGenericParam));
2500 param->name = mono_mempool_alloc0 (m->mempool, 8);
2501 sprintf ((char*)param->name, "%d", index);
2507 g_assert (index < generic_container->type_argc);
2508 return &generic_container->type_params [index];
2512 * do_mono_metadata_parse_type:
2513 * @type: MonoType to be filled in with the return value
2515 * @generic_context: generics_context
2516 * @ptr: pointer to the encoded type
2517 * @rptr: pointer where the end of the encoded type is saved
2519 * Internal routine used to "fill" the contents of @type from an
2520 * allocated pointer. This is done this way to avoid doing too
2521 * many mini-allocations (particularly for the MonoFieldType which
2522 * most of the time is just a MonoType, but sometimes might be augmented).
2524 * This routine is used by mono_metadata_parse_type and
2525 * mono_metadata_parse_field_type
2527 * This extracts a Type as specified in Partition II (22.2.12)
2529 * Returns: FALSE if the type could not be loaded
2532 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2533 const char *ptr, const char **rptr)
2536 type->type = mono_metadata_decode_value (ptr, &ptr);
2538 switch (type->type){
2539 case MONO_TYPE_VOID:
2540 case MONO_TYPE_BOOLEAN:
2541 case MONO_TYPE_CHAR:
2554 case MONO_TYPE_STRING:
2555 case MONO_TYPE_OBJECT:
2556 case MONO_TYPE_TYPEDBYREF:
2558 case MONO_TYPE_VALUETYPE:
2559 case MONO_TYPE_CLASS: {
2561 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
2562 type->data.klass = mono_class_get (m, token);
2563 if (!type->data.klass)
2567 case MONO_TYPE_SZARRAY: {
2568 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2571 type->data.klass = mono_class_from_mono_type (etype);
2575 type->data.type = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2576 if (!type->data.type)
2579 case MONO_TYPE_FNPTR:
2580 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
2582 case MONO_TYPE_ARRAY:
2583 type->data.array = mono_metadata_parse_array_full (m, container, ptr, &ptr);
2585 case MONO_TYPE_MVAR:
2587 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
2589 case MONO_TYPE_GENERICINST:
2590 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
2593 g_error ("type 0x%02x not handled in do_mono_metadata_parse_type", type->type);
2602 * mono_metadata_free_type:
2603 * @type: type to free
2605 * Free the memory allocated for type @type which is allocated on the heap.
2608 mono_metadata_free_type (MonoType *type)
2610 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
2613 switch (type->type){
2614 case MONO_TYPE_OBJECT:
2615 case MONO_TYPE_STRING:
2616 if (!type->data.klass)
2619 case MONO_TYPE_CLASS:
2620 case MONO_TYPE_VALUETYPE:
2621 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
2625 mono_metadata_free_type (type->data.type);
2627 case MONO_TYPE_FNPTR:
2628 mono_metadata_free_method_signature (type->data.method);
2630 case MONO_TYPE_ARRAY:
2631 mono_metadata_free_array (type->data.array);
2640 hex_dump (const char *buffer, int base, int count)
2642 int show_header = 1;
2650 for (i = 0; i < count; i++){
2653 printf ("\n0x%08x: ", (unsigned char) base + i);
2655 printf ("%02x ", (unsigned char) (buffer [i]));
2662 * @mh: The Method header
2663 * @ptr: Points to the beginning of the Section Data (25.3)
2666 parse_section_data (MonoImage *m, MonoMethodHeader *mh, const unsigned char *ptr)
2668 unsigned char sect_data_flags;
2669 const unsigned char *sptr;
2671 guint32 sect_data_len;
2674 /* align on 32-bit boundary */
2675 sptr = ptr = dword_align (ptr);
2676 sect_data_flags = *ptr;
2679 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
2681 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
2684 sect_data_len = ptr [0];
2688 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
2689 hex_dump (sptr, 0, sect_data_len+8);
2690 g_print ("\nheader: ");
2691 hex_dump (sptr-4, 0, 4);
2695 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
2696 const unsigned char *p = dword_align (ptr);
2698 mh->num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
2699 /* we could just store a pointer if we don't need to byteswap */
2700 mh->clauses = mono_mempool_alloc0 (m->mempool, sizeof (MonoExceptionClause) * mh->num_clauses);
2701 for (i = 0; i < mh->num_clauses; ++i) {
2702 MonoExceptionClause *ec = &mh->clauses [i];
2705 ec->flags = read32 (p);
2706 ec->try_offset = read32 (p + 4);
2707 ec->try_len = read32 (p + 8);
2708 ec->handler_offset = read32 (p + 12);
2709 ec->handler_len = read32 (p + 16);
2710 tof_value = read32 (p + 20);
2713 ec->flags = read16 (p);
2714 ec->try_offset = read16 (p + 2);
2715 ec->try_len = *(p + 4);
2716 ec->handler_offset = read16 (p + 5);
2717 ec->handler_len = *(p + 7);
2718 tof_value = read32 (p + 8);
2721 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2722 ec->data.filter_offset = tof_value;
2723 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
2724 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
2726 ec->data.catch_class = NULL;
2728 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
2732 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
2733 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
2740 * mono_metadata_parse_mh_full:
2741 * @m: metadata context
2742 * @generic_context: generics context
2743 * @ptr: pointer to the method header.
2745 * Decode the method header at @ptr, including pointer to the IL code,
2746 * info about local variables and optional exception tables.
2747 * This is a Mono runtime internal function.
2749 * LOCKING: Assumes the loader lock is held.
2751 * Returns: a MonoMethodHeader allocated from the image mempool.
2754 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
2756 MonoMethodHeader *mh;
2757 unsigned char flags = *(const unsigned char *) ptr;
2758 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
2760 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
2761 const unsigned char *code;
2764 g_return_val_if_fail (ptr != NULL, NULL);
2766 mono_loader_lock ();
2768 case METHOD_HEADER_TINY_FORMAT:
2769 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader));
2772 local_var_sig_tok = 0;
2773 mh->code_size = flags >> 2;
2774 mh->code = (unsigned char*)ptr;
2775 mono_loader_unlock ();
2777 case METHOD_HEADER_TINY_FORMAT1:
2778 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader));
2781 local_var_sig_tok = 0;
2784 * The spec claims 3 bits, but the Beta2 is
2787 mh->code_size = flags >> 2;
2788 mh->code = (unsigned char*)ptr;
2789 mono_loader_unlock ();
2791 case METHOD_HEADER_FAT_FORMAT:
2792 fat_flags = read16 (ptr);
2794 hsize = (fat_flags >> 12) & 0xf;
2795 max_stack = read16 (ptr);
2797 code_size = read32 (ptr);
2799 local_var_sig_tok = read32 (ptr);
2802 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
2807 code = (unsigned char*)ptr;
2809 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
2813 * There are more sections
2815 ptr = (char*)code + code_size;
2818 mono_loader_unlock ();
2822 if (local_var_sig_tok) {
2823 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
2824 const char *locals_ptr;
2825 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
2826 int len=0, i, bsize;
2828 mono_metadata_decode_row (t, (local_var_sig_tok & 0xffffff)-1, cols, 1);
2829 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
2830 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
2831 if (*locals_ptr != 0x07)
2832 g_warning ("wrong signature for locals blob");
2834 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
2835 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader) + (len - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
2836 mh->num_locals = len;
2837 for (i = 0; i < len; ++i) {
2838 mh->locals [i] = mono_metadata_parse_type_full (
2839 m, container, MONO_PARSE_LOCAL, 0, locals_ptr, &locals_ptr);
2840 if (!mh->locals [i]) {
2841 mono_loader_unlock ();
2846 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader));
2849 mh->code_size = code_size;
2850 mh->max_stack = max_stack;
2851 mh->init_locals = init_locals;
2852 if (fat_flags & METHOD_HEADER_MORE_SECTS)
2853 parse_section_data (m, mh, (const unsigned char*)ptr);
2854 mono_loader_unlock ();
2859 * mono_metadata_parse_mh:
2860 * @generic_context: generics context
2861 * @ptr: pointer to the method header.
2863 * Decode the method header at @ptr, including pointer to the IL code,
2864 * info about local variables and optional exception tables.
2865 * This is a Mono runtime internal function.
2867 * Returns: a MonoMethodHeader.
2870 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
2872 MonoMethodHeader *res;
2874 mono_loader_lock ();
2876 res = mono_metadata_parse_mh_full (m, NULL, ptr);
2878 mono_loader_unlock ();
2884 * mono_metadata_free_mh:
2885 * @mh: a method header
2887 * Free the memory allocated for the method header.
2888 * This is a Mono runtime internal function.
2891 mono_metadata_free_mh (MonoMethodHeader *mh)
2893 /* Allocated from the mempool */
2897 * mono_method_header_get_code:
2898 * @header: a MonoMethodHeader pointer
2899 * @code_size: memory location for returning the code size
2900 * @max_stack: memory location for returning the max stack
2902 * Method header accessor to retreive info about the IL code properties:
2903 * a pointer to the IL code itself, the size of the code and the max number
2904 * of stack slots used by the code.
2906 * Returns: pointer to the IL code represented by the method header.
2908 const unsigned char*
2909 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
2912 *code_size = header->code_size;
2914 *max_stack = header->max_stack;
2915 return header->code;
2919 * mono_method_header_get_locals:
2920 * @header: a MonoMethodHeader pointer
2921 * @num_locals: memory location for returning the number of local variables
2922 * @init_locals: memory location for returning the init_locals flag
2924 * Method header accessor to retreive info about the local variables:
2925 * an array of local types, the number of locals and whether the locals
2926 * are supposed to be initialized to 0 on method entry
2928 * Returns: pointer to an array of types of the local variables
2931 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
2934 *num_locals = header->num_locals;
2936 *init_locals = header->init_locals;
2937 return header->locals;
2941 * mono_method_header_get_num_clauses:
2942 * @header: a MonoMethodHeader pointer
2944 * Method header accessor to retreive the number of exception clauses.
2946 * Returns: the number of exception clauses present
2949 mono_method_header_get_num_clauses (MonoMethodHeader *header)
2951 return header->num_clauses;
2955 * mono_method_header_get_clauses:
2956 * @header: a MonoMethodHeader pointer
2957 * @method: MonoMethod the header belongs to
2958 * @iter: pointer to a iterator
2959 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
2961 * Get the info about the exception clauses in the method. Set *iter to NULL to
2962 * initiate the iteration, then call the method repeatedly until it returns FALSE.
2963 * At each iteration, the structure pointed to by clause if filled with the
2964 * exception clause information.
2966 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
2970 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
2972 MonoExceptionClause *sc;
2973 /* later we'll be able to use this interface to parse the clause info on demand,
2974 * without allocating anything.
2976 if (!iter || !header->num_clauses)
2979 *iter = sc = header->clauses;
2985 if (sc < header->clauses + header->num_clauses) {
2994 * mono_metadata_parse_field_type:
2995 * @m: metadata context to extract information from
2996 * @ptr: pointer to the field signature
2997 * @rptr: pointer updated to match the end of the decoded stream
2999 * Parses the field signature, and returns the type information for it.
3001 * Returns: The MonoType that was extracted from @ptr.
3004 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3006 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3010 * mono_metadata_parse_param:
3011 * @m: metadata context to extract information from
3012 * @ptr: pointer to the param signature
3013 * @rptr: pointer updated to match the end of the decoded stream
3015 * Parses the param signature, and returns the type information for it.
3017 * Returns: The MonoType that was extracted from @ptr.
3020 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3022 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3026 * mono_metadata_token_from_dor:
3027 * @dor_token: A TypeDefOrRef coded index
3029 * dor_token is a TypeDefOrRef coded index: it contains either
3030 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3031 * bits contain an index into the table.
3033 * Returns: an expanded token
3036 mono_metadata_token_from_dor (guint32 dor_index)
3040 table = dor_index & 0x03;
3041 idx = dor_index >> 2;
3044 case 0: /* TypeDef */
3045 return MONO_TOKEN_TYPE_DEF | idx;
3046 case 1: /* TypeRef */
3047 return MONO_TOKEN_TYPE_REF | idx;
3048 case 2: /* TypeSpec */
3049 return MONO_TOKEN_TYPE_SPEC | idx;
3051 g_assert_not_reached ();
3058 * We use this to pass context information to the row locator
3061 int idx; /* The index that we are trying to locate */
3062 int col_idx; /* The index in the row where idx may be stored */
3063 MonoTableInfo *t; /* pointer to the table */
3068 * How the row locator works.
3073 * ___|___------> _______
3076 * A column in the rows of table A references an index in table B.
3077 * For example A may be the TYPEDEF table and B the METHODDEF table.
3079 * Given an index in table B we want to get the row in table A
3080 * where the column n references our index in B.
3082 * In the locator_t structure:
3084 * col_idx is the column number
3085 * index is the index in table B
3086 * result will be the index in table A
3089 * Table A Table B column (in table A)
3090 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3091 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3092 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3093 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3094 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3096 * Note that we still don't support encoded indexes.
3100 typedef_locator (const void *a, const void *b)
3102 locator_t *loc = (locator_t *) a;
3103 const char *bb = (const char *) b;
3104 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3105 guint32 col, col_next;
3107 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3113 * Need to check that the next row is valid.
3115 if (typedef_index + 1 < loc->t->rows) {
3116 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3117 if (loc->idx >= col_next)
3120 if (col == col_next)
3124 loc->result = typedef_index;
3130 table_locator (const void *a, const void *b)
3132 locator_t *loc = (locator_t *) a;
3133 const char *bb = (const char *) b;
3134 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3137 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3139 if (loc->idx == col) {
3140 loc->result = table_index;
3150 declsec_locator (const void *a, const void *b)
3152 locator_t *loc = (locator_t *) a;
3153 const char *bb = (const char *) b;
3154 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3157 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3159 if (loc->idx == col) {
3160 loc->result = table_index;
3172 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3173 * which contains IDX.
3176 search_ptr_table (MonoImage *image, int table, int idx)
3178 MonoTableInfo *ptrdef = &image->tables [table];
3181 /* Use a linear search to find our index in the table */
3182 for (i = 0; i < ptrdef->rows; i ++)
3183 /* All the Ptr tables have the same structure */
3184 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3187 if (i < ptrdef->rows)
3194 * mono_metadata_typedef_from_field:
3195 * @meta: metadata context
3196 * @index: FieldDef token
3198 * Returns: the 1-based index into the TypeDef table of the type that
3199 * declared the field described by @index, or 0 if not found.
3202 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3204 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3210 loc.idx = mono_metadata_token_index (index);
3211 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3214 if (meta->uncompressed_metadata)
3215 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3217 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3218 g_assert_not_reached ();
3220 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3221 return loc.result + 1;
3225 * mono_metadata_typedef_from_method:
3226 * @meta: metadata context
3227 * @index: MethodDef token
3229 * Returns: the 1-based index into the TypeDef table of the type that
3230 * declared the method described by @index. 0 if not found.
3233 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3235 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3241 loc.idx = mono_metadata_token_index (index);
3242 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3245 if (meta->uncompressed_metadata)
3246 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3248 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3249 g_assert_not_reached ();
3251 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3252 return loc.result + 1;
3256 * mono_metadata_interfaces_from_typedef_full:
3257 * @meta: metadata context
3258 * @index: typedef token
3260 * The array of interfaces that the @index typedef token implements is returned in
3261 * @interfaces. The number of elemnts in the array is returned in @count.
3263 * LOCKING: Assumes the loader lock is held.
3265 * Returns: TRUE on success, FALSE on failure.
3268 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, MonoGenericContext *context)
3270 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3273 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3282 loc.idx = mono_metadata_token_index (index);
3283 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3286 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3291 * We may end up in the middle of the rows...
3294 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
3300 while (pos < tdef->rows) {
3301 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3302 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3307 mono_loader_lock ();
3308 result = mono_mempool_alloc0 (meta->mempool, sizeof (MonoClass*) * (pos - start));
3309 mono_loader_unlock ();
3312 while (pos < tdef->rows) {
3315 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3316 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3318 iface = mono_class_get_full (
3319 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
3322 result [pos - start] = iface;
3325 *count = pos - start;
3326 *interfaces = result;
3331 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
3333 MonoClass **interfaces;
3336 mono_loader_lock ();
3337 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, NULL);
3338 mono_loader_unlock ();
3346 * mono_metadata_nested_in_typedef:
3347 * @meta: metadata context
3348 * @index: typedef token
3350 * Returns: the 1-based index into the TypeDef table of the type
3351 * where the type described by @index is nested.
3352 * Retruns 0 if @index describes a non-nested type.
3355 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
3357 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3363 loc.idx = mono_metadata_token_index (index);
3364 loc.col_idx = MONO_NESTED_CLASS_NESTED;
3367 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3370 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3371 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
3375 * mono_metadata_nesting_typedef:
3376 * @meta: metadata context
3377 * @index: typedef token
3379 * Returns: the 1-based index into the TypeDef table of the first type
3380 * that is nested inside the type described by @index. The search starts at
3381 * @start_index. returns 0 if no such type is found.
3384 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
3386 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3388 guint32 class_index = mono_metadata_token_index (index);
3393 start = start_index;
3395 while (start <= tdef->rows) {
3396 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
3402 if (start > tdef->rows)
3409 * mono_metadata_packing_from_typedef:
3410 * @meta: metadata context
3411 * @index: token representing a type
3413 * Returns: the info stored in the ClassLAyout table for the given typedef token
3414 * into the @packing and @size pointers.
3415 * Returns 0 if the info is not found.
3418 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
3420 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
3422 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
3427 loc.idx = mono_metadata_token_index (index);
3428 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
3431 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3434 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
3436 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
3438 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
3440 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3441 return loc.result + 1;
3445 * mono_metadata_custom_attrs_from_index:
3446 * @meta: metadata context
3447 * @index: token representing the parent
3449 * Returns: the 1-based index into the CustomAttribute table of the first
3450 * attribute which belongs to the metadata object described by @index.
3451 * Returns 0 if no such attribute is found.
3454 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
3456 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
3463 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
3466 /* FIXME: Index translation */
3468 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3471 /* Find the first entry by searching backwards */
3472 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
3475 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3476 return loc.result + 1;
3480 * mono_metadata_declsec_from_index:
3481 * @meta: metadata context
3482 * @index: token representing the parent
3484 * Returns: the 0-based index into the DeclarativeSecurity table of the first
3485 * attribute which belongs to the metadata object described by @index.
3486 * Returns -1 if no such attribute is found.
3489 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
3491 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
3498 loc.col_idx = MONO_DECL_SECURITY_PARENT;
3501 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
3504 /* Find the first entry by searching backwards */
3505 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
3513 mono_backtrace (int limit)
3518 backtrace (array, limit);
3519 names = backtrace_symbols (array, limit);
3520 for (i =0; i < limit; ++i) {
3521 g_print ("\t%s\n", names [i]);
3528 /*#define __alignof__(a) sizeof(a)*/
3529 #define __alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
3534 * @t: the type to return the size of
3536 * Returns: the number of bytes required to hold an instance of this
3540 mono_type_size (MonoType *t, int *align)
3547 *align = __alignof__(gpointer);
3548 return sizeof (gpointer);
3552 case MONO_TYPE_VOID:
3555 case MONO_TYPE_BOOLEAN:
3556 *align = __alignof__(gint8);
3560 *align = __alignof__(gint8);
3562 case MONO_TYPE_CHAR:
3565 *align = __alignof__(gint16);
3569 *align = __alignof__(gint32);
3572 *align = __alignof__(float);
3576 *align = __alignof__(gint64);
3579 *align = __alignof__(double);
3583 *align = __alignof__(gpointer);
3584 return sizeof (gpointer);
3585 case MONO_TYPE_STRING:
3586 *align = __alignof__(gpointer);
3587 return sizeof (gpointer);
3588 case MONO_TYPE_OBJECT:
3589 *align = __alignof__(gpointer);
3590 return sizeof (gpointer);
3591 case MONO_TYPE_VALUETYPE: {
3592 if (t->data.klass->enumtype)
3593 return mono_type_size (t->data.klass->enum_basetype, align);
3595 return mono_class_value_size (t->data.klass, (guint32*)align);
3597 case MONO_TYPE_CLASS:
3598 case MONO_TYPE_SZARRAY:
3600 case MONO_TYPE_FNPTR:
3601 case MONO_TYPE_ARRAY:
3602 *align = __alignof__(gpointer);
3603 return sizeof (gpointer);
3604 case MONO_TYPE_TYPEDBYREF:
3605 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
3606 case MONO_TYPE_GENERICINST: {
3607 MonoGenericClass *gclass = t->data.generic_class;
3608 MonoClass *container_class = gclass->container_class;
3610 // g_assert (!gclass->inst->is_open);
3612 if (container_class->valuetype) {
3613 if (container_class->enumtype)
3614 return mono_type_size (container_class->enum_basetype, align);
3616 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3618 *align = __alignof__(gpointer);
3619 return sizeof (gpointer);
3623 case MONO_TYPE_MVAR:
3624 /* FIXME: Martin, this is wrong. */
3625 *align = __alignof__(gpointer);
3626 return sizeof (gpointer);
3628 g_error ("mono_type_size: type 0x%02x unknown", t->type);
3634 * mono_type_stack_size:
3635 * @t: the type to return the size it uses on the stack
3637 * Returns: the number of bytes required to hold an instance of this
3638 * type on the runtime stack
3641 mono_type_stack_size (MonoType *t, int *align)
3643 return mono_type_stack_size_internal (t, align, FALSE);
3647 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
3651 g_assert (t != NULL);
3657 *align = __alignof__(gpointer);
3658 return sizeof (gpointer);
3662 case MONO_TYPE_BOOLEAN:
3663 case MONO_TYPE_CHAR:
3672 case MONO_TYPE_STRING:
3673 case MONO_TYPE_OBJECT:
3674 case MONO_TYPE_CLASS:
3675 case MONO_TYPE_SZARRAY:
3677 case MONO_TYPE_FNPTR:
3678 case MONO_TYPE_ARRAY:
3679 *align = __alignof__(gpointer);
3680 return sizeof (gpointer);
3681 case MONO_TYPE_TYPEDBYREF:
3682 *align = __alignof__(gpointer);
3683 return sizeof (gpointer) * 3;
3685 *align = __alignof__(float);
3686 return sizeof (float);
3689 *align = __alignof__(gint64);
3690 return sizeof (gint64);
3692 *align = __alignof__(double);
3693 return sizeof (double);
3694 case MONO_TYPE_VALUETYPE: {
3697 if (t->data.klass->enumtype)
3698 return mono_type_stack_size_internal (t->data.klass->enum_basetype, align, allow_open);
3700 size = mono_class_value_size (t->data.klass, (guint32*)align);
3702 *align = *align + __alignof__(gpointer) - 1;
3703 *align &= ~(__alignof__(gpointer) - 1);
3705 size += sizeof (gpointer) - 1;
3706 size &= ~(sizeof (gpointer) - 1);
3711 case MONO_TYPE_GENERICINST: {
3712 MonoGenericClass *gclass = t->data.generic_class;
3713 MonoClass *container_class = gclass->container_class;
3716 g_assert (!gclass->context.class_inst->is_open);
3718 if (container_class->valuetype) {
3719 if (container_class->enumtype)
3720 return mono_type_stack_size_internal (container_class->enum_basetype, align, allow_open);
3722 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3724 *align = *align + __alignof__(gpointer) - 1;
3725 *align &= ~(__alignof__(gpointer) - 1);
3727 size += sizeof (gpointer) - 1;
3728 size &= ~(sizeof (gpointer) - 1);
3733 *align = __alignof__(gpointer);
3734 return sizeof (gpointer);
3738 g_error ("type 0x%02x unknown", t->type);
3744 mono_type_generic_inst_is_valuetype (MonoType *type)
3746 g_assert (type->type == MONO_TYPE_GENERICINST);
3747 return type->data.generic_class->container_class->valuetype;
3751 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
3753 return gclass->container_class->valuetype;
3757 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
3760 MonoGenericInst *i1 = g1->context.class_inst;
3761 MonoGenericInst *i2 = g2->context.class_inst;
3763 if (i1->type_argc != i2->type_argc || g1->is_dynamic != g2->is_dynamic)
3765 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
3767 for (i = 0; i < i1->type_argc; ++i) {
3768 if (!do_mono_metadata_type_equal (i1->type_argv [i], i2->type_argv [i], signature_only))
3771 return g1->is_tb_open == g2->is_tb_open;
3775 mono_metadata_generic_context_hash (const MonoGenericContext *context)
3777 /* FIXME: check if this seed is good enough */
3778 guint hash = 0xc01dfee7;
3779 if (context->class_inst)
3780 hash = ((hash << 5) - hash) ^ context->class_inst->id;
3781 if (context->method_inst)
3782 hash = ((hash << 5) - hash) ^ context->method_inst->id;
3787 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
3789 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
3793 * mono_metadata_type_hash:
3796 * Computes an hash value for @t1 to be used in GHashTable.
3799 mono_metadata_type_hash (MonoType *t1)
3801 guint hash = t1->type;
3803 hash |= t1->byref << 6; /* do not collide with t1->type values */
3805 case MONO_TYPE_VALUETYPE:
3806 case MONO_TYPE_CLASS:
3807 case MONO_TYPE_SZARRAY:
3808 /* check if the distribution is good enough */
3809 return ((hash << 5) - hash) ^ g_str_hash (t1->data.klass->name);
3811 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
3812 case MONO_TYPE_ARRAY:
3813 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
3814 case MONO_TYPE_GENERICINST:
3815 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
3821 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
3825 if (p1->num != p2->num)
3828 if (p1->owner == p2->owner)
3832 * If `signature_only' is true, we're comparing two (method) signatures.
3833 * In this case, the owner of two type parameters doesn't need to match.
3836 return signature_only;
3840 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
3844 if (c1->generic_class && c2->generic_class)
3845 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
3846 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
3847 return mono_metadata_generic_param_equal (
3848 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
3849 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
3850 return mono_metadata_generic_param_equal (
3851 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
3852 if (signature_only &&
3853 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
3854 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
3859 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
3861 gpointer iter1 = 0, iter2 = 0;
3865 if (s1->call_convention != s2->call_convention)
3867 if (s1->sentinelpos != s2->sentinelpos)
3869 if (s1->hasthis != s2->hasthis)
3871 if (s1->explicit_this != s2->explicit_this)
3873 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
3875 if (s1->param_count != s2->param_count)
3879 MonoType *t1 = mono_signature_get_params (s1, &iter1);
3880 MonoType *t2 = mono_signature_get_params (s2, &iter2);
3882 if (t1 == NULL || t2 == NULL)
3884 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
3890 * mono_metadata_type_equal:
3894 * Determine if @t1 and @t2 represent the same type.
3895 * Returns: #TRUE if @t1 and @t2 are equal.
3898 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
3900 if (t1->type != t2->type || t1->byref != t2->byref)
3904 case MONO_TYPE_VOID:
3905 case MONO_TYPE_BOOLEAN:
3906 case MONO_TYPE_CHAR:
3917 case MONO_TYPE_STRING:
3920 case MONO_TYPE_OBJECT:
3921 case MONO_TYPE_TYPEDBYREF:
3923 case MONO_TYPE_VALUETYPE:
3924 case MONO_TYPE_CLASS:
3925 case MONO_TYPE_SZARRAY:
3926 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
3928 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
3929 case MONO_TYPE_ARRAY:
3930 if (t1->data.array->rank != t2->data.array->rank)
3932 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
3933 case MONO_TYPE_GENERICINST:
3934 return _mono_metadata_generic_class_equal (
3935 t1->data.generic_class, t2->data.generic_class, signature_only);
3937 return mono_metadata_generic_param_equal (
3938 t1->data.generic_param, t2->data.generic_param, signature_only);
3939 case MONO_TYPE_MVAR:
3940 return mono_metadata_generic_param_equal (
3941 t1->data.generic_param, t2->data.generic_param, signature_only);
3942 case MONO_TYPE_FNPTR:
3943 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
3945 g_error ("implement type compare for %0x!", t1->type);
3953 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
3955 return do_mono_metadata_type_equal (t1, t2, FALSE);
3959 * mono_metadata_signature_equal:
3960 * @sig1: a signature
3961 * @sig2: another signature
3963 * Determine if @sig1 and @sig2 represent the same signature, with the
3964 * same number of arguments and the same types.
3965 * Returns: #TRUE if @sig1 and @sig2 are equal.
3968 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3972 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
3975 if (sig1->generic_param_count != sig2->generic_param_count)
3979 * We're just comparing the signatures of two methods here:
3981 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
3982 * U and V are equal here.
3984 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
3987 for (i = 0; i < sig1->param_count; i++) {
3988 MonoType *p1 = sig1->params[i];
3989 MonoType *p2 = sig2->params[i];
3991 /* if (p1->attrs != p2->attrs)
3994 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
3998 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4004 * mono_metadata_type_dup:
4005 * @mp: mempool to use
4006 * @original: type to duplicate
4008 * Returns: copy of type allocated from mempool (or from the heap, if @mp is null).
4011 mono_metadata_type_dup (MonoMemPool *mp, const MonoType *o)
4014 int sizeof_o = sizeof (MonoType);
4016 sizeof_o += (o->num_mods - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod);
4018 mono_loader_lock ();
4019 r = mp ? mono_mempool_alloc0 (mp, sizeof_o) : g_malloc (sizeof_o);
4020 mono_loader_unlock ();
4022 memcpy (r, o, sizeof_o);
4024 if (o->type == MONO_TYPE_PTR) {
4025 r->data.type = mono_metadata_type_dup (mp, o->data.type);
4026 } else if (o->type == MONO_TYPE_ARRAY) {
4027 /* FIXME: should mono_dup_array_type() use mempools? */
4029 r->data.array = mono_dup_array_type (o->data.array);
4030 } else if (o->type == MONO_TYPE_FNPTR) {
4031 /* FIXME: should mono_metadata_signature_deep_dup() use mempools? */
4033 r->data.method = mono_metadata_signature_deep_dup (o->data.method);
4039 mono_signature_hash (MonoMethodSignature *sig)
4041 guint i, res = sig->ret->type;
4043 for (i = 0; i < sig->param_count; i++)
4044 res = (res << 5) - res + mono_type_hash (sig->params[i]);
4050 * mono_metadata_encode_value:
4051 * @value: value to encode
4052 * @buf: buffer where to write the compressed representation
4053 * @endbuf: pointer updated to point at the end of the encoded output
4055 * Encodes the value @value in the compressed representation used
4056 * in metadata and stores the result in @buf. @buf needs to be big
4057 * enough to hold the data (4 bytes).
4060 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
4066 else if (value < 0x4000) {
4067 p [0] = 0x80 | (value >> 8);
4068 p [1] = value & 0xff;
4071 p [0] = (value >> 24) | 0xc0;
4072 p [1] = (value >> 16) & 0xff;
4073 p [2] = (value >> 8) & 0xff;
4074 p [3] = value & 0xff;
4082 * mono_metadata_field_info:
4083 * @meta: the Image the field is defined in
4084 * @index: the index in the field table representing the field
4085 * @offset: a pointer to an integer where to store the offset that
4086 * may have been specified for the field in a FieldLayout table
4087 * @rva: a pointer to the RVA of the field data in the image that
4088 * may have been defined in a FieldRVA table
4089 * @marshal_spec: a pointer to the marshal spec that may have been
4090 * defined for the field in a FieldMarshal table.
4092 * Gather info for field @index that may have been defined in the FieldLayout,
4093 * FieldRVA and FieldMarshal tables.
4094 * Either of offset, rva and marshal_spec can be NULL if you're not interested
4098 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4099 MonoMarshalSpec **marshal_spec)
4101 MonoTableInfo *tdef;
4104 loc.idx = index + 1;
4105 if (meta->uncompressed_metadata)
4106 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4109 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
4111 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
4114 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4115 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
4117 *offset = (guint32)-1;
4121 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
4123 loc.col_idx = MONO_FIELD_RVA_FIELD;
4126 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4128 * LAMESPEC: There is no signature, no nothing, just the raw data.
4130 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
4138 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
4139 *marshal_spec = mono_metadata_parse_marshal_spec (meta, p);
4146 * mono_metadata_get_constant_index:
4147 * @meta: the Image the field is defined in
4148 * @index: the token that may have a row defined in the constants table
4149 * @hint: possible position for the row
4151 * @token must be a FieldDef, ParamDef or PropertyDef token.
4153 * Returns: the index into the Constants table or 0 if not found.
4156 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4158 MonoTableInfo *tdef;
4160 guint32 index = mono_metadata_token_index (token);
4162 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4163 index <<= MONO_HASCONSTANT_BITS;
4164 switch (mono_metadata_token_table (token)) {
4165 case MONO_TABLE_FIELD:
4166 index |= MONO_HASCONSTANT_FIEDDEF;
4168 case MONO_TABLE_PARAM:
4169 index |= MONO_HASCONSTANT_PARAM;
4171 case MONO_TABLE_PROPERTY:
4172 index |= MONO_HASCONSTANT_PROPERTY;
4175 g_warning ("Not a valid token for the constant table: 0x%08x", token);
4179 loc.col_idx = MONO_CONSTANT_PARENT;
4182 /* FIXME: Index translation */
4184 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
4187 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4188 return loc.result + 1;
4194 * mono_metadata_events_from_typedef:
4195 * @meta: metadata context
4196 * @index: 0-based index (in the TypeDef table) describing a type
4198 * Returns: the 0-based index in the Event table for the events in the
4199 * type. The last event that belongs to the type (plus 1) is stored
4200 * in the @end_idx pointer.
4203 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4207 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
4215 loc.col_idx = MONO_EVENT_MAP_PARENT;
4216 loc.idx = index + 1;
4218 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4221 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
4222 if (loc.result + 1 < tdef->rows) {
4223 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
4225 end = meta->tables [MONO_TABLE_EVENT].rows;
4233 * mono_metadata_methods_from_event:
4234 * @meta: metadata context
4235 * @index: 0-based index (in the Event table) describing a event
4237 * Returns: the 0-based index in the MethodDef table for the methods in the
4238 * event. The last method that belongs to the event (plus 1) is stored
4239 * in the @end_idx pointer.
4242 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
4246 guint32 cols [MONO_METHOD_SEMA_SIZE];
4247 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4253 if (meta->uncompressed_metadata)
4254 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
4257 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4258 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
4260 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4265 * We may end up in the middle of the rows...
4268 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4274 while (end < msemt->rows) {
4275 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4276 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4285 * mono_metadata_properties_from_typedef:
4286 * @meta: metadata context
4287 * @index: 0-based index (in the TypeDef table) describing a type
4289 * Returns: the 0-based index in the Property table for the properties in the
4290 * type. The last property that belongs to the type (plus 1) is stored
4291 * in the @end_idx pointer.
4294 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4298 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
4306 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
4307 loc.idx = index + 1;
4309 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4312 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
4313 if (loc.result + 1 < tdef->rows) {
4314 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
4316 end = meta->tables [MONO_TABLE_PROPERTY].rows;
4324 * mono_metadata_methods_from_property:
4325 * @meta: metadata context
4326 * @index: 0-based index (in the PropertyDef table) describing a property
4328 * Returns: the 0-based index in the MethodDef table for the methods in the
4329 * property. The last method that belongs to the property (plus 1) is stored
4330 * in the @end_idx pointer.
4333 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
4337 guint32 cols [MONO_METHOD_SEMA_SIZE];
4338 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4344 if (meta->uncompressed_metadata)
4345 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
4348 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4349 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
4351 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4356 * We may end up in the middle of the rows...
4359 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4365 while (end < msemt->rows) {
4366 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4367 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4376 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
4379 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
4384 /* No index translation seems to be needed */
4387 loc.col_idx = MONO_IMPLMAP_MEMBER;
4388 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
4390 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4393 return loc.result + 1;
4397 * @image: context where the image is created
4398 * @type_spec: typespec token
4400 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
4404 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
4406 guint32 idx = mono_metadata_token_index (type_spec);
4408 guint32 cols [MONO_TYPESPEC_SIZE];
4411 MonoType *type, *type2;
4413 mono_loader_lock ();
4415 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4417 mono_loader_unlock ();
4421 t = &image->tables [MONO_TABLE_TYPESPEC];
4423 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
4424 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
4425 len = mono_metadata_decode_value (ptr, &ptr);
4427 type = mono_mempool_alloc0 (image->mempool, sizeof (MonoType));
4429 if (*ptr == MONO_TYPE_BYREF) {
4434 if (!do_mono_metadata_parse_type (type, image, NULL, ptr, &ptr)) {
4435 mono_loader_unlock ();
4439 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4442 mono_loader_unlock ();
4446 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type);
4448 mono_loader_unlock ();
4454 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
4456 MonoMarshalSpec *res;
4458 const char *start = ptr;
4460 /* fixme: this is incomplete, but I cant find more infos in the specs */
4462 res = g_new0 (MonoMarshalSpec, 1);
4464 len = mono_metadata_decode_value (ptr, &ptr);
4465 res->native = *ptr++;
4467 if (res->native == MONO_NATIVE_LPARRAY) {
4468 res->data.array_data.param_num = -1;
4469 res->data.array_data.num_elem = -1;
4470 res->data.array_data.elem_mult = -1;
4472 if (ptr - start <= len)
4473 res->data.array_data.elem_type = *ptr++;
4474 if (ptr - start <= len)
4475 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
4476 if (ptr - start <= len)
4477 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4478 if (ptr - start <= len) {
4480 * LAMESPEC: Older spec versions say this parameter comes before
4481 * num_elem. Never spec versions don't talk about elem_mult at
4482 * all, but csc still emits it, and it is used to distinguish
4483 * between param_num being 0, and param_num being omitted.
4484 * So if (param_num == 0) && (num_elem > 0), then
4485 * elem_mult == 0 -> the array size is num_elem
4486 * elem_mult == 1 -> the array size is @param_num + num_elem
4488 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
4492 if (res->native == MONO_NATIVE_BYVALTSTR) {
4493 if (ptr - start <= len)
4494 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4497 if (res->native == MONO_NATIVE_BYVALARRAY) {
4498 if (ptr - start <= len)
4499 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4502 if (res->native == MONO_NATIVE_CUSTOM) {
4503 /* skip unused type guid */
4504 len = mono_metadata_decode_value (ptr, &ptr);
4506 /* skip unused native type name */
4507 len = mono_metadata_decode_value (ptr, &ptr);
4509 /* read custom marshaler type name */
4510 len = mono_metadata_decode_value (ptr, &ptr);
4511 res->data.custom_data.custom_name = g_strndup (ptr, len);
4513 /* read cookie string */
4514 len = mono_metadata_decode_value (ptr, &ptr);
4515 res->data.custom_data.cookie = g_strndup (ptr, len);
4518 if (res->native == MONO_NATIVE_SAFEARRAY) {
4519 res->data.safearray_data.elem_type = 0;
4520 res->data.safearray_data.num_elem = 0;
4521 if (ptr - start <= len)
4522 res->data.safearray_data.elem_type = *ptr++;
4523 if (ptr - start <= len)
4524 res->data.safearray_data.num_elem = *ptr++;
4530 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
4532 if (spec->native == MONO_NATIVE_CUSTOM) {
4533 g_free (spec->data.custom_data.custom_name);
4534 g_free (spec->data.custom_data.cookie);
4540 * mono_type_to_unmanaged:
4542 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
4543 * describing the underlying native reprensetation of the type.
4545 * In addition the value pointed by
4546 * "conv" will contain the kind of marshalling required for this
4547 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
4550 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
4551 gboolean unicode, MonoMarshalConv *conv)
4553 MonoMarshalConv dummy_conv;
4559 *conv = MONO_MARSHAL_CONV_NONE;
4562 return MONO_NATIVE_UINT;
4566 case MONO_TYPE_BOOLEAN:
4568 switch (mspec->native) {
4569 case MONO_NATIVE_VARIANTBOOL:
4570 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
4571 return MONO_NATIVE_VARIANTBOOL;
4572 case MONO_NATIVE_BOOLEAN:
4573 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4574 return MONO_NATIVE_BOOLEAN;
4575 case MONO_NATIVE_I1:
4576 case MONO_NATIVE_U1:
4577 return mspec->native;
4579 g_error ("cant marshal bool to native type %02x", mspec->native);
4582 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4583 return MONO_NATIVE_BOOLEAN;
4584 case MONO_TYPE_CHAR: return MONO_NATIVE_U2;
4585 case MONO_TYPE_I1: return MONO_NATIVE_I1;
4586 case MONO_TYPE_U1: return MONO_NATIVE_U1;
4587 case MONO_TYPE_I2: return MONO_NATIVE_I2;
4588 case MONO_TYPE_U2: return MONO_NATIVE_U2;
4589 case MONO_TYPE_I4: return MONO_NATIVE_I4;
4590 case MONO_TYPE_U4: return MONO_NATIVE_U4;
4591 case MONO_TYPE_I8: return MONO_NATIVE_I8;
4592 case MONO_TYPE_U8: return MONO_NATIVE_U8;
4593 case MONO_TYPE_R4: return MONO_NATIVE_R4;
4594 case MONO_TYPE_R8: return MONO_NATIVE_R8;
4595 case MONO_TYPE_STRING:
4597 switch (mspec->native) {
4598 case MONO_NATIVE_BSTR:
4599 *conv = MONO_MARSHAL_CONV_STR_BSTR;
4600 return MONO_NATIVE_BSTR;
4601 case MONO_NATIVE_LPSTR:
4602 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4603 return MONO_NATIVE_LPSTR;
4604 case MONO_NATIVE_LPWSTR:
4605 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4606 return MONO_NATIVE_LPWSTR;
4607 case MONO_NATIVE_LPTSTR:
4608 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
4609 return MONO_NATIVE_LPTSTR;
4610 case MONO_NATIVE_ANSIBSTR:
4611 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
4612 return MONO_NATIVE_ANSIBSTR;
4613 case MONO_NATIVE_TBSTR:
4614 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
4615 return MONO_NATIVE_TBSTR;
4616 case MONO_NATIVE_BYVALTSTR:
4618 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
4620 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
4621 return MONO_NATIVE_BYVALTSTR;
4623 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);
4627 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4628 return MONO_NATIVE_LPWSTR;
4631 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4632 return MONO_NATIVE_LPSTR;
4634 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
4635 case MONO_TYPE_VALUETYPE: /*FIXME*/
4636 if (type->data.klass->enumtype) {
4637 t = type->data.klass->enum_basetype->type;
4640 if (type->data.klass == mono_defaults.handleref_class){
4641 *conv = MONO_MARSHAL_CONV_HANDLEREF;
4642 return MONO_NATIVE_INT;
4644 return MONO_NATIVE_STRUCT;
4645 case MONO_TYPE_SZARRAY:
4646 case MONO_TYPE_ARRAY:
4648 switch (mspec->native) {
4649 case MONO_NATIVE_BYVALARRAY:
4650 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
4651 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
4653 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
4654 return MONO_NATIVE_BYVALARRAY;
4655 case MONO_NATIVE_SAFEARRAY:
4656 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
4657 return MONO_NATIVE_SAFEARRAY;
4658 case MONO_NATIVE_LPARRAY:
4659 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4660 return MONO_NATIVE_LPARRAY;
4662 g_error ("cant marshal array as native type %02x", mspec->native);
4666 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4667 return MONO_NATIVE_LPARRAY;
4668 case MONO_TYPE_I: return MONO_NATIVE_INT;
4669 case MONO_TYPE_U: return MONO_NATIVE_UINT;
4670 case MONO_TYPE_CLASS:
4671 case MONO_TYPE_OBJECT: {
4672 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
4674 switch (mspec->native) {
4675 case MONO_NATIVE_STRUCT:
4676 return MONO_NATIVE_STRUCT;
4677 case MONO_NATIVE_CUSTOM:
4678 return MONO_NATIVE_CUSTOM;
4679 case MONO_NATIVE_INTERFACE:
4680 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
4681 return MONO_NATIVE_INTERFACE;
4682 case MONO_NATIVE_IDISPATCH:
4683 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
4684 return MONO_NATIVE_IDISPATCH;
4685 case MONO_NATIVE_IUNKNOWN:
4686 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
4687 return MONO_NATIVE_IUNKNOWN;
4688 case MONO_NATIVE_FUNC:
4689 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4690 type->data.klass == mono_defaults.delegate_class ||
4691 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4692 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4693 return MONO_NATIVE_FUNC;
4697 g_error ("cant marshal object as native type %02x", mspec->native);
4700 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4701 type->data.klass == mono_defaults.delegate_class ||
4702 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4703 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4704 return MONO_NATIVE_FUNC;
4706 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
4707 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
4708 return MONO_NATIVE_INT;
4710 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
4711 return MONO_NATIVE_STRUCT;
4713 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
4714 case MONO_TYPE_GENERICINST:
4715 type = &type->data.generic_class->container_class->byval_arg;
4718 case MONO_TYPE_TYPEDBYREF:
4720 g_error ("type 0x%02x not handled in marshal", t);
4722 return MONO_NATIVE_MAX;
4726 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
4729 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
4735 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
4736 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
4738 /* FIXME: Index translation */
4740 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4743 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
4747 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
4749 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
4751 switch (tok & MONO_METHODDEFORREF_MASK) {
4752 case MONO_METHODDEFORREF_METHODDEF:
4753 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
4754 case MONO_METHODDEFORREF_METHODREF:
4755 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
4757 g_assert_not_reached ();
4762 * mono_class_get_overrides_full:
4764 * Return the method overrides belonging to class @type_token in @overrides, and
4765 * the number of overrides in @num_overrides.
4767 * Returns: TRUE on success, FALSE on failure.
4770 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
4771 MonoGenericContext *generic_context)
4774 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
4777 guint32 cols [MONO_METHODIMPL_SIZE];
4778 MonoMethod **result;
4789 loc.col_idx = MONO_METHODIMPL_CLASS;
4790 loc.idx = mono_metadata_token_index (type_token);
4792 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4798 * We may end up in the middle of the rows...
4801 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
4806 while (end < tdef->rows) {
4807 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
4813 result = g_new (MonoMethod*, num * 2);
4814 for (i = 0; i < num; ++i) {
4817 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
4818 method = method_from_method_def_or_ref (
4819 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
4822 result [i * 2] = method;
4823 method = method_from_method_def_or_ref (
4824 image, cols [MONO_METHODIMPL_BODY], generic_context);
4827 result [i * 2 + 1] = method;
4830 *overrides = result;
4832 *num_overrides = num;
4837 * mono_guid_to_string:
4839 * Converts a 16 byte Microsoft GUID to the standard string representation.
4842 mono_guid_to_string (const guint8 *guid)
4844 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
4845 guid[3], guid[2], guid[1], guid[0],
4849 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
4853 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
4855 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
4856 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
4857 guint32 i, token, found;
4858 MonoClass *klass, **res;
4859 GList *cons = NULL, *tmp;
4860 MonoGenericContext *context = &container->context;
4862 *constraints = NULL;
4864 for (i = 0; i < tdef->rows; ++i) {
4865 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
4866 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
4867 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
4868 klass = mono_class_get_full (image, token, context);
4869 cons = g_list_append (cons, klass);
4872 /* contiguous list finished */
4879 res = g_new0 (MonoClass*, found + 1);
4880 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
4881 res [i] = tmp->data;
4889 * mono_metadata_get_generic_param_row:
4892 * @token: TypeOrMethodDef token, owner for GenericParam
4893 * @owner: coded token, set on return
4895 * Returns: 1-based row-id in the GenericParam table whose
4896 * owner is @token. 0 if not found.
4899 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
4901 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4902 guint32 cols [MONO_GENERICPARAM_SIZE];
4909 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
4910 *owner = MONO_TYPEORMETHOD_TYPE;
4911 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
4912 *owner = MONO_TYPEORMETHOD_METHOD;
4914 g_error ("wrong token %x to get_generic_param_row", token);
4917 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
4919 for (i = 0; i < tdef->rows; ++i) {
4920 mono_metadata_decode_row (tdef, i, cols, MONO_GENERICPARAM_SIZE);
4921 if (cols [MONO_GENERICPARAM_OWNER] == *owner)
4929 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
4932 return mono_metadata_get_generic_param_row (image, token, &owner);
4936 * mono_metadata_load_generic_param_constraints:
4938 * Load the generic parameter constraints for the newly created generic type or method
4939 * represented by @token and @container. The @container is the new container which has
4940 * been returned by a call to mono_metadata_load_generic_params() with this @token.
4943 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
4944 MonoGenericContainer *container)
4946 guint32 start_row, i, owner;
4947 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
4949 for (i = 0; i < container->type_argc; i++)
4950 get_constraints (image, start_row + i, &container->type_params [i].constraints, container);
4954 * mono_metadata_load_generic_params:
4956 * Load the type parameters from the type or method definition @token.
4958 * Use this method after parsing a type or method definition to figure out whether it's a generic
4959 * type / method. When parsing a method definition, @parent_container points to the generic container
4960 * of the current class, if any.
4962 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
4963 * creating the type.
4965 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
4967 * LOCKING: Assumes the loader lock is held.
4970 MonoGenericContainer *
4971 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
4973 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4974 guint32 cols [MONO_GENERICPARAM_SIZE];
4975 guint32 i, owner = 0, n;
4976 MonoGenericContainer *container;
4977 MonoGenericParam *params;
4978 MonoGenericContext *context;
4980 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
4982 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4985 container = mono_mempool_alloc0 (image->mempool, sizeof (MonoGenericContainer));
4988 params = g_realloc (params, sizeof (MonoGenericParam) * n);
4989 params [n - 1].owner = container;
4990 params [n - 1].pklass = NULL;
4991 params [n - 1].flags = cols [MONO_GENERICPARAM_FLAGS];
4992 params [n - 1].num = cols [MONO_GENERICPARAM_NUMBER];
4993 params [n - 1].name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
4994 params [n - 1].constraints = NULL;
4995 if (++i > tdef->rows)
4997 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4998 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
5000 container->type_argc = n;
5001 container->type_params = mono_mempool_alloc0 (image->mempool, sizeof (MonoGenericParam) * n);
5002 memcpy (container->type_params, params, sizeof (MonoGenericParam) * n);
5004 container->parent = parent_container;
5006 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5007 container->is_method = 1;
5009 g_assert (container->parent == NULL || container->is_method);
5011 context = &container->context;
5012 if (container->is_method) {
5013 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
5014 context->method_inst = mono_get_shared_generic_inst (container);
5016 context->class_inst = mono_get_shared_generic_inst (container);
5023 mono_get_shared_generic_inst (MonoGenericContainer *container)
5025 MonoType **type_argv;
5027 MonoGenericInst *nginst;
5030 type_argv = g_new0 (MonoType *, container->type_argc);
5031 helper = g_new0 (MonoType, container->type_argc);
5033 for (i = 0; i < container->type_argc; i++) {
5034 MonoType *t = &helper [i];
5036 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5037 t->data.generic_param = &container->type_params [i];
5042 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
5051 mono_type_is_byref (MonoType *type)
5057 mono_type_get_type (MonoType *type)
5062 /* For MONO_TYPE_FNPTR */
5063 MonoMethodSignature*
5064 mono_type_get_signature (MonoType *type)
5066 return type->data.method;
5069 /* For MONO_TYPE_CLASS, VALUETYPE */
5071 mono_type_get_class (MonoType *type)
5073 return type->data.klass;
5076 /* For MONO_TYPE_ARRAY */
5078 mono_type_get_array_type (MonoType *type)
5080 return type->data.array;
5083 /* For MONO_TYPE_PTR */
5085 mono_type_get_ptr_type (MonoType *type)
5087 return type->data.type;
5091 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
5093 /* FIXME: implement */
5098 mono_signature_get_return_type (MonoMethodSignature *sig)
5104 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
5110 /* start from the first */
5111 if (sig->param_count) {
5112 *iter = &sig->params [0];
5113 return sig->params [0];
5121 if (type < &sig->params [sig->param_count]) {
5129 mono_signature_get_param_count (MonoMethodSignature *sig)
5131 return sig->param_count;
5135 mono_signature_get_call_conv (MonoMethodSignature *sig)
5137 return sig->call_convention;
5141 mono_signature_vararg_start (MonoMethodSignature *sig)
5143 return sig->sentinelpos;
5147 mono_signature_is_instance (MonoMethodSignature *sig)
5149 return sig->hasthis;
5153 mono_signature_explicit_this (MonoMethodSignature *sig)
5155 return sig->explicit_this;
5158 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
5160 mono_aligned_addr_hash (gconstpointer ptr)
5162 return GPOINTER_TO_UINT (ptr) >> 3;