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"
439 * mono_meta_table_name:
440 * @table: table index
442 * Returns: the name for the @table index
445 mono_meta_table_name (int table)
447 if ((table < 0) || (table > MONO_TABLE_LAST))
450 #ifdef HAVE_ARRAY_ELEM_INIT
451 return (const char*)&tablestr + tableidx [table];
453 return mono_tables_names [table];
457 /* The guy who wrote the spec for this should not be allowed near a
460 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
461 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
462 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
463 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
464 inverse of this mapping.
467 #define rtsize(s,b) (((s) < (1 << (b)) ? 2 : 4))
468 #define idx_size(tableidx) (meta->tables [(tableidx)].rows < 65536 ? 2 : 4)
470 /* Reference: Partition II - 23.2.6 */
472 * mono_metadata_compute_size:
473 * @meta: metadata context
474 * @tableindex: metadata table number
475 * @result_bitfield: pointer to guint32 where to store additional info
477 * mono_metadata_compute_size() computes the lenght in bytes of a single
478 * row in a metadata table. The size of each column is encoded in the
479 * @result_bitfield return value along with the number of columns in the table.
480 * the resulting bitfield should be handed to the mono_metadata_table_size()
481 * and mono_metadata_table_count() macros.
482 * This is a Mono runtime internal only function.
485 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
487 guint32 bitfield = 0;
488 int size = 0, field_size = 0;
491 const unsigned char *description = TableSchemas + table_description [tableindex];
493 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
496 field_size = 4; break;
499 field_size = 2; break;
502 field_size = 1; break;
504 case MONO_MT_BLOB_IDX:
505 field_size = meta->idx_blob_wide ? 4 : 2; break;
507 case MONO_MT_STRING_IDX:
508 field_size = meta->idx_string_wide ? 4 : 2; break;
510 case MONO_MT_GUID_IDX:
511 field_size = meta->idx_guid_wide ? 4 : 2; break;
513 case MONO_MT_TABLE_IDX:
514 /* Uhm, a table index can point to other tables besides the current one
515 * so, it's not correct to use the rowcount of the current table to
516 * get the size for this column - lupus
518 switch (tableindex) {
519 case MONO_TABLE_ASSEMBLYREFOS:
521 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
522 case MONO_TABLE_ASSEMBLYPROCESSOR:
524 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
525 case MONO_TABLE_CLASSLAYOUT:
527 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
528 case MONO_TABLE_EVENTMAP:
529 g_assert (i == 0 || i == 1);
530 field_size = i ? idx_size (MONO_TABLE_EVENT):
531 idx_size(MONO_TABLE_TYPEDEF);
533 case MONO_TABLE_EVENT:
535 field_size = MAX (idx_size (MONO_TABLE_TYPEDEF), idx_size(MONO_TABLE_TYPEREF));
536 field_size = MAX (field_size, idx_size(MONO_TABLE_TYPESPEC));
538 case MONO_TABLE_EVENT_POINTER:
540 field_size = idx_size (MONO_TABLE_EVENT); break;
541 case MONO_TABLE_EXPORTEDTYPE:
543 /* the index is in another metadata file, so it must be 4 */
544 field_size = 4; break;
545 case MONO_TABLE_FIELDLAYOUT:
547 field_size = idx_size (MONO_TABLE_FIELD); break;
548 case MONO_TABLE_FIELDRVA:
550 field_size = idx_size (MONO_TABLE_FIELD); break;
551 case MONO_TABLE_FIELD_POINTER:
553 field_size = idx_size (MONO_TABLE_FIELD); break;
554 case MONO_TABLE_IMPLMAP:
556 field_size = idx_size (MONO_TABLE_MODULEREF); break;
557 case MONO_TABLE_INTERFACEIMPL:
559 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
560 case MONO_TABLE_METHOD:
562 field_size = idx_size (MONO_TABLE_PARAM); break;
563 case MONO_TABLE_METHODIMPL:
565 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
566 case MONO_TABLE_METHODSEMANTICS:
568 field_size = idx_size (MONO_TABLE_METHOD); break;
569 case MONO_TABLE_METHOD_POINTER:
571 field_size = idx_size (MONO_TABLE_METHOD); break;
572 case MONO_TABLE_NESTEDCLASS:
573 g_assert (i == 0 || i == 1);
574 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
575 case MONO_TABLE_PARAM_POINTER:
577 field_size = idx_size (MONO_TABLE_PARAM); break;
578 case MONO_TABLE_PROPERTYMAP:
579 g_assert (i == 0 || i == 1);
580 field_size = i ? idx_size (MONO_TABLE_PROPERTY):
581 idx_size(MONO_TABLE_TYPEDEF);
583 case MONO_TABLE_PROPERTY_POINTER:
585 field_size = idx_size (MONO_TABLE_PROPERTY); break;
586 case MONO_TABLE_TYPEDEF:
587 g_assert (i == 4 || i == 5);
588 field_size = i == 4 ? idx_size (MONO_TABLE_FIELD):
589 idx_size(MONO_TABLE_METHOD);
591 case MONO_TABLE_GENERICPARAM:
592 g_assert (i == 2 || i == 4 || i == 5);
594 field_size = MAX (idx_size (MONO_TABLE_METHOD), idx_size (MONO_TABLE_TYPEDEF));
596 field_size = idx_size (MONO_TABLE_TYPEDEF);
598 field_size = idx_size (MONO_TABLE_TYPEDEF);
601 case MONO_TABLE_GENERICPARAMCONSTRAINT:
603 field_size = idx_size (MONO_TABLE_GENERICPARAM);
607 g_assert_not_reached ();
612 * HasConstant: ParamDef, FieldDef, Property
614 case MONO_MT_CONST_IDX:
615 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
616 meta->tables [MONO_TABLE_FIELD].rows);
617 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
619 /* 2 bits to encode tag */
620 field_size = rtsize (n, 16-2);
624 * HasCustomAttribute: points to any table but
627 case MONO_MT_HASCAT_IDX:
629 * We believe that since the signature and
630 * permission are indexing the Blob heap,
631 * we should consider the blob size first
633 /* I'm not a believer - lupus
634 if (meta->idx_blob_wide){
639 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
640 meta->tables [MONO_TABLE_FIELD].rows);
641 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
642 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
643 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
644 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
645 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
646 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
647 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
648 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
649 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
650 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
651 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
652 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
653 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
654 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
655 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
656 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
657 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
659 /* 5 bits to encode */
660 field_size = rtsize (n, 16-5);
664 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
665 * MemberRef and String.
667 case MONO_MT_CAT_IDX:
668 /* String is a heap, if it is wide, we know the size */
670 if (meta->idx_string_wide){
675 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
676 meta->tables [MONO_TABLE_TYPEDEF].rows);
677 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
678 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
680 /* 3 bits to encode */
681 field_size = rtsize (n, 16-3);
685 * HasDeclSecurity: Typedef, MethodDef, Assembly
687 case MONO_MT_HASDEC_IDX:
688 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
689 meta->tables [MONO_TABLE_METHOD].rows);
690 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
692 /* 2 bits to encode */
693 field_size = rtsize (n, 16-2);
697 * Implementation: File, AssemblyRef, ExportedType
699 case MONO_MT_IMPL_IDX:
700 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
701 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
702 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
704 /* 2 bits to encode tag */
705 field_size = rtsize (n, 16-2);
709 * HasFieldMarshall: FieldDef, ParamDef
711 case MONO_MT_HFM_IDX:
712 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
713 meta->tables [MONO_TABLE_PARAM].rows);
715 /* 1 bit used to encode tag */
716 field_size = rtsize (n, 16-1);
720 * MemberForwarded: FieldDef, MethodDef
723 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
724 meta->tables [MONO_TABLE_METHOD].rows);
726 /* 1 bit used to encode tag */
727 field_size = rtsize (n, 16-1);
731 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
733 * It is TypeDef, _TypeRef_, TypeSpec, instead.
735 case MONO_MT_TDOR_IDX:
736 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
737 meta->tables [MONO_TABLE_TYPEREF].rows);
738 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
740 /* 2 bits to encode */
741 field_size = rtsize (n, 16-2);
745 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
747 case MONO_MT_MRP_IDX:
748 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
749 meta->tables [MONO_TABLE_TYPEREF].rows);
750 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
751 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
752 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
753 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
755 /* 3 bits to encode */
756 field_size = rtsize (n, 16 - 3);
760 * MethodDefOrRef: MethodDef, MemberRef
762 case MONO_MT_MDOR_IDX:
763 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
764 meta->tables [MONO_TABLE_MEMBERREF].rows);
766 /* 1 bit used to encode tag */
767 field_size = rtsize (n, 16-1);
771 * HasSemantics: Property, Event
774 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
775 meta->tables [MONO_TABLE_EVENT].rows);
777 /* 1 bit used to encode tag */
778 field_size = rtsize (n, 16-1);
782 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
785 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
786 meta->tables [MONO_TABLE_MODULEREF].rows);
787 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
788 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
790 /* 2 bits used to encode tag (ECMA spec claims 3) */
791 field_size = rtsize (n, 16 - 2);
796 * encode field size as follows (we just need to
803 bitfield |= (field_size-1) << shift;
806 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
809 *result_bitfield = (i << 24) | bitfield;
814 * mono_metadata_compute_table_bases:
815 * @meta: metadata context to compute table values
817 * Computes the table bases for the metadata structure.
818 * This is an internal function used by the image loader code.
821 mono_metadata_compute_table_bases (MonoImage *meta)
824 const char *base = meta->tables_base;
826 for (i = 0; i < MONO_TABLE_NUM; i++) {
827 MonoTableInfo *table = &meta->tables [i];
828 if (table->rows == 0)
831 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
833 base += table->rows * table->row_size;
838 * mono_metadata_locate:
839 * @meta: metadata context
840 * @table: table code.
841 * @idx: index of element to retrieve from @table.
843 * Returns: a pointer to the @idx element in the metadata table
844 * whose code is @table.
847 mono_metadata_locate (MonoImage *meta, int table, int idx)
849 /* idx == 0 refers always to NULL */
850 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, "");
852 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
856 * mono_metadata_locate_token:
857 * @meta: metadata context
858 * @token: metadata token
860 * Returns: a pointer to the data in the metadata represented by the
864 mono_metadata_locate_token (MonoImage *meta, guint32 token)
866 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
870 * mono_metadata_string_heap:
871 * @meta: metadata context
872 * @index: index into the string heap.
874 * Returns: an in-memory pointer to the @index in the string heap.
877 mono_metadata_string_heap (MonoImage *meta, guint32 index)
879 g_return_val_if_fail (index < meta->heap_strings.size, "");
880 return meta->heap_strings.data + index;
884 * mono_metadata_user_string:
885 * @meta: metadata context
886 * @index: index into the user string heap.
888 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
891 mono_metadata_user_string (MonoImage *meta, guint32 index)
893 g_return_val_if_fail (index < meta->heap_us.size, "");
894 return meta->heap_us.data + index;
898 * mono_metadata_blob_heap:
899 * @meta: metadata context
900 * @index: index into the blob.
902 * Returns: an in-memory pointer to the @index in the Blob heap.
905 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
907 g_return_val_if_fail (index < meta->heap_blob.size, "");
908 return meta->heap_blob.data + index;
912 * mono_metadata_guid_heap:
913 * @meta: metadata context
914 * @index: index into the guid heap.
916 * Returns: an in-memory pointer to the @index in the guid heap.
919 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
922 index *= 16; /* adjust for guid size and 1-based index */
923 g_return_val_if_fail (index < meta->heap_guid.size, "");
924 return meta->heap_guid.data + index;
927 static const unsigned char *
928 dword_align (const unsigned char *ptr)
930 #if SIZEOF_VOID_P == 8
931 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
933 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
938 * mono_metadata_decode_row:
939 * @t: table to extract information from.
940 * @idx: index in table.
941 * @res: array of @res_size cols to store the results in
943 * This decompresses the metadata element @idx in table @t
944 * into the guint32 @res array that has res_size elements
947 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
949 guint32 bitfield = t->size_bitfield;
950 int i, count = mono_metadata_table_count (bitfield);
951 const char *data = t->base + idx * t->row_size;
953 g_assert (res_size == count);
955 for (i = 0; i < count; i++) {
956 int n = mono_metadata_table_size (bitfield, i);
960 res [i] = *data; break;
962 res [i] = read16 (data); break;
964 res [i] = read32 (data); break;
966 g_assert_not_reached ();
973 * mono_metadata_decode_row_col:
974 * @t: table to extract information from.
975 * @idx: index for row in table.
976 * @col: column in the row.
978 * This function returns the value of column @col from the @idx
979 * row in the table @t.
982 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
984 guint32 bitfield = t->size_bitfield;
986 register const char *data = t->base + idx * t->row_size;
989 g_assert (col < mono_metadata_table_count (bitfield));
991 n = mono_metadata_table_size (bitfield, 0);
992 for (i = 0; i < col; ++i) {
994 n = mono_metadata_table_size (bitfield, i + 1);
1000 return read16 (data);
1002 return read32 (data);
1004 g_assert_not_reached ();
1010 * mono_metadata_decode_blob_size:
1011 * @ptr: pointer to a blob object
1012 * @rptr: the new position of the pointer
1014 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1016 * Returns: the size of the blob object
1019 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1021 const unsigned char *ptr = (const unsigned char *)xptr;
1024 if ((*ptr & 0x80) == 0){
1025 size = ptr [0] & 0x7f;
1027 } else if ((*ptr & 0x40) == 0){
1028 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1031 size = ((ptr [0] & 0x1f) << 24) +
1043 * mono_metadata_decode_value:
1044 * @ptr: pointer to decode from
1045 * @rptr: the new position of the pointer
1047 * This routine decompresses 32-bit values as specified in the "Blob and
1048 * Signature" section (22.2)
1050 * Returns: the decoded value
1053 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1055 const unsigned char *ptr = (const unsigned char *) _ptr;
1056 unsigned char b = *ptr;
1059 if ((b & 0x80) == 0){
1062 } else if ((b & 0x40) == 0){
1063 len = ((b & 0x3f) << 8 | ptr [1]);
1066 len = ((b & 0x1f) << 24) |
1079 * mono_metadata_decode_signed_value:
1080 * @ptr: pointer to decode from
1081 * @rptr: the new position of the pointer
1083 * This routine decompresses 32-bit signed values
1084 * (not specified in the spec)
1086 * Returns: the decoded value
1089 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1091 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1092 gint32 ival = uval >> 1;
1095 /* ival is a truncated 2's complement negative number. */
1097 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1100 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1101 return ival - 0x2000;
1102 if (ival < 0x10000000)
1103 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1104 return ival - 0x10000000;
1105 g_assert (ival < 0x20000000);
1106 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1107 return ival - 0x20000000;
1111 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1112 * using the *Ptr tables in uncompressed metadata, if they are available.
1114 * FIXME: The caller is not forced to call this function, which is error-prone, since
1115 * forgetting to call it would only show up as a bug on uncompressed metadata.
1118 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1120 if (!image->uncompressed_metadata)
1124 case MONO_TABLE_METHOD:
1125 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1126 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1129 case MONO_TABLE_FIELD:
1130 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1131 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1134 case MONO_TABLE_EVENT:
1135 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1136 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1139 case MONO_TABLE_PROPERTY:
1140 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1141 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1144 case MONO_TABLE_PARAM:
1145 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1146 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1155 * mono_metadata_decode_table_row:
1157 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1158 * uncompressed metadata into account, so it should be used to access the
1159 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1160 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1163 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1165 if (image->uncompressed_metadata)
1166 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1168 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1172 * mono_metadata_decode_table_row_col:
1174 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1175 * uncompressed metadata into account, so it should be used to access the
1176 * Method, Field, Param and Event tables.
1178 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1180 if (image->uncompressed_metadata)
1181 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1183 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1187 * mono_metadata_parse_typedef_or_ref:
1188 * @m: a metadata context.
1189 * @ptr: a pointer to an encoded TypedefOrRef in @m
1190 * @rptr: pointer updated to match the end of the decoded stream
1192 * Returns: a token valid in the @m metadata decoded from
1193 * the compressed representation.
1196 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1199 token = mono_metadata_decode_value (ptr, &ptr);
1202 return mono_metadata_token_from_dor (token);
1206 * mono_metadata_parse_custom_mod:
1207 * @m: a metadata context.
1208 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1209 * @ptr: a pointer to (possibly) the start of a custom modifier list
1210 * @rptr: pointer updated to match the end of the decoded stream
1212 * Checks if @ptr points to a type custom modifier compressed representation.
1214 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1217 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1219 MonoCustomMod local;
1220 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1223 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1224 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1231 * mono_metadata_parse_array_full:
1232 * @m: a metadata context.
1233 * @ptr: a pointer to an encoded array description.
1234 * @rptr: pointer updated to match the end of the decoded stream
1236 * Decodes the compressed array description found in the metadata @m at @ptr.
1238 * Returns: a #MonoArrayType structure describing the array type
1239 * and dimensions. Memory is allocated from the image mempool.
1241 * LOCKING: Assumes the loader lock is held.
1244 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1245 const char *ptr, const char **rptr)
1248 MonoArrayType *array = mono_mempool_alloc0 (m->mempool, sizeof (MonoArrayType));
1251 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1254 array->eklass = mono_class_from_mono_type (etype);
1255 array->rank = mono_metadata_decode_value (ptr, &ptr);
1257 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1258 if (array->numsizes)
1259 array->sizes = g_new0 (int, array->numsizes);
1260 for (i = 0; i < array->numsizes; ++i)
1261 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1263 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1264 if (array->numlobounds)
1265 array->lobounds = g_new0 (int, array->numlobounds);
1266 for (i = 0; i < array->numlobounds; ++i)
1267 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1275 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1277 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1281 * mono_metadata_free_array:
1282 * @array: array description
1284 * Frees the array description returned from mono_metadata_parse_array().
1287 mono_metadata_free_array (MonoArrayType *array)
1289 g_free (array->sizes);
1290 g_free (array->lobounds);
1295 * need to add common field and param attributes combinations:
1298 * public static literal
1301 * private static literal
1303 static const MonoType
1305 /* data, attrs, type, nmods, byref, pinned */
1306 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1307 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1308 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1309 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1310 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1311 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1312 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1313 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1314 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1315 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1316 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1317 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1318 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1319 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1320 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1321 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1322 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1323 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1324 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1325 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1326 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1327 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1328 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1329 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1330 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1331 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1332 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1333 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1334 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1335 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1336 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1337 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1338 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1339 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1342 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1344 static GHashTable *type_cache = NULL;
1345 static GHashTable *generic_inst_cache = NULL;
1346 static GHashTable *generic_class_cache = NULL;
1347 static int next_generic_inst_id = 0;
1350 * Protected by the loader lock.
1351 * It has a MonoMethodInflated* as key and value.
1352 * The key lookup will just access the declaring and context fields
1354 static GHashTable *generic_method_cache = NULL;
1356 static guint mono_generic_class_hash (gconstpointer data);
1359 * MonoTypes with modifies are never cached, so we never check or use that field.
1362 mono_type_hash (gconstpointer data)
1364 const MonoType *type = (const MonoType *) data;
1365 if (type->type == MONO_TYPE_GENERICINST)
1366 return mono_generic_class_hash (type->data.generic_class);
1368 return type->type | (type->byref << 8) | (type->attrs << 9);
1372 mono_type_equal (gconstpointer ka, gconstpointer kb)
1374 const MonoType *a = (const MonoType *) ka;
1375 const MonoType *b = (const MonoType *) kb;
1377 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1379 /* need other checks */
1384 mono_generic_inst_hash (gconstpointer data)
1386 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1390 for (i = 0; i < ginst->type_argc; ++i) {
1392 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1395 return hash ^ (ginst->is_open << 8);
1399 mono_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1401 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1402 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1405 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1407 for (i = 0; i < a->type_argc; ++i) {
1408 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], FALSE))
1415 mono_generic_class_hash (gconstpointer data)
1417 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1418 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1421 hash += mono_metadata_generic_context_hash (&gclass->context);
1427 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1429 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1430 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1432 return _mono_metadata_generic_class_equal (a, b, FALSE);
1436 * mono_metadata_init:
1438 * Initialize the global variables of this module.
1439 * This is a Mono runtime internal function.
1442 mono_metadata_init (void)
1446 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1447 generic_inst_cache = g_hash_table_new_full (mono_generic_inst_hash, mono_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
1448 generic_class_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
1450 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1451 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1455 * mono_metadata_cleanup:
1457 * Free all resources used by this module.
1458 * This is a Mono runtime internal function.
1461 mono_metadata_cleanup (void)
1463 g_hash_table_destroy (type_cache);
1464 g_hash_table_destroy (generic_inst_cache);
1465 g_hash_table_destroy (generic_class_cache);
1466 if (generic_method_cache)
1467 g_hash_table_destroy (generic_method_cache);
1469 generic_inst_cache = NULL;
1470 generic_class_cache = NULL;
1471 generic_method_cache = NULL;
1475 * mono_metadata_parse_type:
1476 * @m: metadata context
1477 * @mode: king of type that may be found at @ptr
1478 * @opt_attrs: optional attributes to store in the returned type
1479 * @ptr: pointer to the type representation
1480 * @rptr: pointer updated to match the end of the decoded stream
1482 * Decode a compressed type description found at @ptr in @m.
1483 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1484 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1485 * This function can be used to decode type descriptions in method signatures,
1486 * field signatures, locals signatures etc.
1488 * To parse a generic type, `generic_container' points to the current class'es
1489 * (the `generic_container' field in the MonoClass) or the current generic method's
1490 * (the `generic_container' field in the MonoMethodNormal) generic container.
1491 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1492 * this MonoGenericContainer.
1493 * This is a Mono runtime internal function.
1495 * LOCKING: Acquires the loader lock.
1497 * Returns: a #MonoType structure representing the decoded type.
1500 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1501 short opt_attrs, const char *ptr, const char **rptr)
1503 MonoType *type, *cached;
1505 gboolean byref = FALSE;
1506 gboolean pinned = FALSE;
1507 const char *tmp_ptr;
1511 mono_loader_lock ();
1513 * According to the spec, custom modifiers should come before the byref
1514 * flag, but the IL produced by ilasm from the following signature:
1515 * object modopt(...) &
1516 * starts with a byref flag, followed by the modifiers. (bug #49802)
1517 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1518 * it would be better to treat byref as real type constructor instead of
1520 * Also, pinned should come before anything else, but some MSV++ produced
1521 * assemblies violate this (#bug 61990).
1524 /* Count the modifiers first */
1529 case MONO_TYPE_PINNED:
1530 case MONO_TYPE_BYREF:
1533 case MONO_TYPE_CMOD_REQD:
1534 case MONO_TYPE_CMOD_OPT:
1536 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1544 type = mono_mempool_alloc0 (m->mempool, sizeof (MonoType) + ((gint32)count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod));
1545 type->num_mods = count;
1547 g_warning ("got more than 64 modifiers in type");
1550 memset (type, 0, sizeof (MonoType));
1553 /* Parse pinned, byref and custom modifiers */
1558 case MONO_TYPE_PINNED:
1562 case MONO_TYPE_BYREF:
1566 case MONO_TYPE_CMOD_REQD:
1567 case MONO_TYPE_CMOD_OPT:
1568 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1576 type->attrs = opt_attrs;
1577 type->byref = byref;
1578 type->pinned = pinned ? 1 : 0;
1580 if (!do_mono_metadata_parse_type (type, m, container, ptr, &ptr)) {
1581 mono_loader_unlock ();
1588 if (!type->num_mods) {
1589 /* no need to free type here, because it is on the stack */
1590 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1591 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1593 /* Consider the case:
1595 class Foo<T> { class Bar {} }
1596 class Test : Foo<Test>.Bar {}
1598 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1599 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1601 We ensure that the MonoClass is in a state that we can canonicalize to:
1603 klass->byval_arg.data.klass == klass
1604 klass->this_arg.data.klass == klass
1606 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1608 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1609 of a MonoClass which currently holds the loader lock. 'type' is local.
1611 if (ret->data.klass == type->data.klass) {
1612 mono_loader_unlock ();
1616 /* No need to use locking since nobody is modifying the hash table */
1617 if ((cached = g_hash_table_lookup (type_cache, type))) {
1618 mono_loader_unlock ();
1623 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1625 if (type == &stype) {
1626 type = mono_mempool_alloc (m->mempool, sizeof (MonoType));
1627 memcpy (type, &stype, sizeof (MonoType));
1629 mono_loader_unlock ();
1634 * LOCKING: Assumes the loader lock is held.
1637 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1638 const char *ptr, const char **rptr)
1640 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1644 * mono_metadata_get_param_attrs:
1646 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1647 * returned memory needs to be freed by the caller. If all the param attributes are
1648 * 0, then NULL is returned.
1651 mono_metadata_get_param_attrs (MonoImage *m, int def)
1653 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1654 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1655 guint32 cols [MONO_PARAM_SIZE];
1656 guint lastp, i, param_index = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def - 1, MONO_METHOD_PARAMLIST);
1659 if (def < methodt->rows)
1660 lastp = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def, MONO_METHOD_PARAMLIST);
1662 lastp = paramt->rows + 1;
1664 for (i = param_index; i < lastp; ++i) {
1665 mono_metadata_decode_row (&m->tables [MONO_TABLE_PARAM], i - 1, cols, MONO_PARAM_SIZE);
1666 if (cols [MONO_PARAM_FLAGS]) {
1668 pattrs = g_new0 (int, 1 + (lastp - param_index));
1669 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1677 * mono_metadata_parse_signature_full:
1678 * @image: metadata context
1679 * @generic_container: generic container
1680 * @toke: metadata token
1682 * Decode a method signature stored in the STANDALONESIG table
1684 * LOCKING: Assumes the loader lock is held.
1686 * Returns: a MonoMethodSignature describing the signature.
1688 MonoMethodSignature*
1689 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1691 MonoTableInfo *tables = image->tables;
1692 guint32 idx = mono_metadata_token_index (token);
1697 return mono_lookup_dynamic_token (image, token, NULL);
1699 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1701 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1703 ptr = mono_metadata_blob_heap (image, sig);
1704 mono_metadata_decode_blob_size (ptr, &ptr);
1706 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1710 * mono_metadata_parse_signature:
1711 * @image: metadata context
1712 * @toke: metadata token
1714 * Decode a method signature stored in the STANDALONESIG table
1716 * Returns: a MonoMethodSignature describing the signature.
1718 MonoMethodSignature*
1719 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1721 return mono_metadata_parse_signature_full (image, NULL, token);
1725 * mono_metadata_signature_alloc:
1726 * @image: metadata context
1727 * @nparmas: number of parameters in the signature
1729 * Allocate a MonoMethodSignature structure with the specified number of params.
1730 * The return type and the params types need to be filled later.
1731 * This is a Mono runtime internal function.
1733 * LOCKING: Assumes the loader lock is held.
1735 * Returns: the new MonoMethodSignature structure.
1737 MonoMethodSignature*
1738 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1740 MonoMethodSignature *sig;
1742 mono_loader_lock ();
1743 sig = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodSignature) + ((gint32)nparams - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
1744 sig->param_count = nparams;
1745 sig->sentinelpos = -1;
1746 mono_loader_unlock ();
1752 * mono_metadata_signature_dup:
1753 * @sig: method signature
1755 * Duplicate an existing MonoMethodSignature so it can be modified.
1756 * This is a Mono runtime internal function.
1758 * Returns: the new MonoMethodSignature structure.
1760 MonoMethodSignature*
1761 mono_metadata_signature_dup (MonoMethodSignature *sig)
1765 sigsize = sizeof (MonoMethodSignature) + (sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *);
1766 return g_memdup (sig, sigsize);
1770 * mono_metadata_parse_method_signature:
1771 * @m: metadata context
1772 * @generic_container: generics container
1773 * @def: the MethodDef index or 0 for Ref signatures.
1774 * @ptr: pointer to the signature metadata representation
1775 * @rptr: pointer updated to match the end of the decoded stream
1777 * Decode a method signature stored at @ptr.
1778 * This is a Mono runtime internal function.
1780 * LOCKING: Assumes the loader lock is held.
1782 * Returns: a MonoMethodSignature describing the signature.
1784 MonoMethodSignature *
1785 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1786 int def, const char *ptr, const char **rptr)
1788 MonoMethodSignature *method;
1789 int i, *pattrs = NULL;
1790 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1791 guint32 gen_param_count = 0;
1792 gboolean is_open = FALSE;
1795 gen_param_count = 1;
1800 call_convention = *ptr & 0x0F;
1802 if (gen_param_count)
1803 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1804 param_count = mono_metadata_decode_value (ptr, &ptr);
1807 pattrs = mono_metadata_get_param_attrs (m, def);
1808 method = mono_metadata_signature_alloc (m, param_count);
1809 method->hasthis = hasthis;
1810 method->explicit_this = explicit_this;
1811 method->call_convention = call_convention;
1812 method->generic_param_count = gen_param_count;
1814 if (call_convention != 0xa) {
1815 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1817 mono_metadata_free_method_signature (method);
1821 is_open = mono_class_is_open_constructed_type (method->ret);
1824 for (i = 0; i < method->param_count; ++i) {
1825 if (*ptr == MONO_TYPE_SENTINEL) {
1826 if (method->call_convention != MONO_CALL_VARARG || def)
1827 g_error ("found sentinel for methoddef or no vararg method");
1828 if (method->sentinelpos >= 0)
1829 g_error ("found sentinel twice in the same signature");
1830 method->sentinelpos = i;
1833 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1834 if (!method->params [i]) {
1835 mono_metadata_free_method_signature (method);
1840 is_open = mono_class_is_open_constructed_type (method->params [i]);
1843 /* The sentinel could be missing if the caller does not pass any additional arguments */
1844 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1845 method->sentinelpos = method->param_count;
1847 method->has_type_parameters = is_open;
1849 if (def && (method->call_convention == MONO_CALL_VARARG))
1850 method->sentinelpos = method->param_count;
1857 * Add signature to a cache and increase ref count...
1864 * mono_metadata_parse_method_signature:
1865 * @m: metadata context
1866 * @def: the MethodDef index or 0 for Ref signatures.
1867 * @ptr: pointer to the signature metadata representation
1868 * @rptr: pointer updated to match the end of the decoded stream
1870 * Decode a method signature stored at @ptr.
1871 * This is a Mono runtime internal function.
1873 * LOCKING: Assumes the loader lock is held.
1875 * Returns: a MonoMethodSignature describing the signature.
1877 MonoMethodSignature *
1878 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1880 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1884 * mono_metadata_free_method_signature:
1885 * @sig: signature to destroy
1887 * Free the memory allocated in the signature @sig.
1888 * This method needs to be robust and work also on partially-built
1889 * signatures, so it does extra checks.
1892 mono_metadata_free_method_signature (MonoMethodSignature *sig)
1894 /* Everything is allocated from mempools */
1898 mono_metadata_free_type (sig->ret);
1899 for (i = 0; i < sig->param_count; ++i) {
1900 if (sig->params [i])
1901 mono_metadata_free_type (sig->params [i]);
1907 inflated_method_equal (gconstpointer a, gconstpointer b)
1909 const MonoMethodInflated *ma = a;
1910 const MonoMethodInflated *mb = b;
1911 if (ma->declaring != mb->declaring)
1913 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
1917 inflated_method_hash (gconstpointer a)
1919 const MonoMethodInflated *ma = a;
1920 return mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring);
1924 dump_ginst (MonoGenericInst *ginst)
1929 g_print ("Ginst: <");
1930 for (i = 0; i < ginst->type_argc; ++i) {
1933 name = mono_type_get_name (ginst->type_argv [i]);
1934 g_print ("%s", name);
1940 static gboolean gclass_in_image (gpointer key, gpointer value, gpointer data);
1945 GSList *gclass_list;
1946 } CleanForImageUserData;
1949 ginst_in_image (gpointer key, gpointer value, gpointer data)
1951 CleanForImageUserData *user_data = (CleanForImageUserData*)data;
1952 MonoImage *image = user_data->image;
1953 MonoGenericInst *ginst = key;
1956 for (i = 0; i < ginst->type_argc; ++i) {
1957 MonoType *type = ginst->type_argv [i];
1959 /* FIXME: Avoid a possible mono_class_inst inside mono_class_from_mono_type */
1960 if (type->type == MONO_TYPE_GENERICINST) {
1961 if (gclass_in_image (type->data.generic_class, NULL, data)) {
1962 if (!g_slist_find (user_data->ginst_list, ginst))
1963 user_data->ginst_list = g_slist_append (user_data->ginst_list, ginst);
1969 klass = mono_class_from_mono_type (ginst->type_argv [i]);
1970 if (klass->image == image) {
1971 /*dump_ginst (ginst);
1972 g_print (" removed\n");*/
1973 if (!g_slist_find (user_data->ginst_list, ginst))
1974 user_data->ginst_list = g_slist_append (user_data->ginst_list, ginst);
1982 gclass_in_image (gpointer key, gpointer value, gpointer data)
1984 CleanForImageUserData *user_data = (CleanForImageUserData*)data;
1985 MonoImage *image = user_data->image;
1986 MonoGenericClass *gclass = key;
1987 gboolean match = FALSE;
1989 if (ginst_in_image (gclass->context.class_inst, NULL, data))
1991 if (gclass->container_class->image == image)
1995 if (!g_slist_find (user_data->gclass_list, gclass))
1996 user_data->gclass_list = g_slist_append (user_data->gclass_list, gclass);
2004 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2006 CleanForImageUserData *user_data = (CleanForImageUserData*)data;
2007 MonoImage *image = user_data->image;
2008 MonoMethodInflated *method = key;
2010 if (method->declaring->klass->image == image)
2012 if (method->context.class_inst && ginst_in_image (method->context.class_inst, NULL, data))
2014 if (method->context.method_inst && ginst_in_image (method->context.method_inst, NULL, data))
2020 * LOCKING: assumes the loader lock is held.
2023 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2026 if (!generic_method_cache)
2027 generic_method_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2028 g_hash_table_insert (generic_method_cache, method, method);
2031 if (generic_method_cache)
2032 return g_hash_table_lookup (generic_method_cache, method);
2038 mono_metadata_clean_for_image (MonoImage *image)
2040 CleanForImageUserData user_data;
2043 /* The data structures could reference each other so we delete them in two phases */
2044 user_data.image = image;
2045 user_data.ginst_list = NULL;
2046 user_data.gclass_list = NULL;
2048 mono_loader_lock ();
2049 /* Collect the items to delete and remove them from the hash table */
2050 g_hash_table_foreach_steal (generic_inst_cache, ginst_in_image, &user_data);
2051 g_hash_table_foreach_steal (generic_class_cache, gclass_in_image, &user_data);
2052 if (generic_method_cache)
2053 g_hash_table_foreach_remove (generic_method_cache, inflated_method_in_image, &user_data);
2054 /* Delete the removed items */
2055 for (l = user_data.ginst_list; l; l = l->next)
2056 free_generic_inst (l->data);
2057 for (l = user_data.gclass_list; l; l = l->next)
2058 free_generic_class (l->data);
2059 g_slist_free (user_data.ginst_list);
2060 g_slist_free (user_data.gclass_list);
2061 mono_loader_unlock ();
2065 free_inflated_method (MonoMethodInflated *imethod)
2068 MonoMethod *method = (MonoMethod*)imethod;
2070 if (method->signature) {
2071 MonoMethodSignature *sig = method->signature;
2073 /* Allocated in inflate_generic_signature () */
2074 mono_metadata_free_type (sig->ret);
2075 for (i = 0; i < sig->param_count; ++i)
2076 mono_metadata_free_type (sig->params [i]);
2078 /* FIXME: The signature is allocated from a mempool */
2079 //g_free (method->signature);
2082 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))) {
2083 MonoMethodNormal* mn = (MonoMethodNormal*) method;
2084 MonoMethodHeader *header = mn->header;
2087 /* Allocated in inflate_generic_header () */
2088 for (i = 0; i < header->num_locals; ++i)
2089 mono_metadata_free_type (header->locals [i]);
2090 g_free (header->clauses);
2099 free_generic_inst (MonoGenericInst *ginst)
2103 for (i = 0; i < ginst->type_argc; ++i)
2104 mono_metadata_free_type (ginst->type_argv [i]);
2105 g_free (ginst->type_argv);
2111 free_generic_class (MonoGenericClass *gclass)
2115 if (gclass->cached_class) {
2116 MonoClass *class = gclass->cached_class;
2118 /* Allocated in mono_class_init () */
2119 g_free (class->methods);
2120 g_free (class->properties);
2121 /* Allocated in mono_class_setup_fields () */
2122 if (class->fields) {
2123 for (i = 0; i < class->field.count; ++i) {
2124 g_free (class->fields [i].generic_info);
2125 mono_metadata_free_type (class->fields [i].type);
2128 /* Allocated in mono_generic_class_get_class () */
2129 g_free (class->interfaces);
2136 * mono_metadata_get_generic_inst:
2138 * Given a list of types, return a MonoGenericInst that represents that list.
2139 * The returned MonoGenericInst has its own copy of the list of types. The list
2140 * passed in the argument can be freed, modified or disposed of.
2144 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2146 MonoGenericInst *ginst;
2147 MonoGenericInst helper;
2150 helper.type_argc = type_argc;
2151 helper.type_argv = type_argv;
2154 for (i = 0; i < type_argc; ++i)
2155 if (mono_class_is_open_constructed_type (type_argv [i]))
2157 helper.is_open = (i < type_argc);
2159 /*dump_ginst (&helper);*/
2160 mono_loader_lock ();
2161 ginst = g_hash_table_lookup (generic_inst_cache, &helper);
2163 mono_loader_unlock ();
2164 /*g_print (" found cached\n");*/
2168 ginst = g_new0 (MonoGenericInst, 1);
2169 ginst->type_argc = type_argc;
2170 ginst->type_argv = g_new (MonoType*, type_argc);
2171 ginst->id = ++next_generic_inst_id;
2172 ginst->is_open = helper.is_open;
2174 for (i = 0; i < type_argc; ++i)
2175 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2177 g_hash_table_insert (generic_inst_cache, ginst, ginst);
2179 mono_loader_unlock ();
2180 /*g_print (" inserted\n");*/
2185 * mono_metadata_lookup_generic_class:
2187 * Returns a MonoGenericClass with the given properties.
2191 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2193 MonoGenericClass *gclass;
2195 MonoGenericClass helper;
2196 helper.container_class = container_class;
2197 helper.context.class_inst = inst;
2198 helper.context.method_inst = NULL;
2199 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2200 helper.cached_class = NULL;
2202 mono_loader_lock ();
2204 gclass = g_hash_table_lookup (generic_class_cache, &helper);
2206 /* A tripwire just to keep us honest */
2207 g_assert (!helper.cached_class);
2210 mono_loader_unlock ();
2215 MonoDynamicGenericClass *dgclass = g_new0 (MonoDynamicGenericClass, 1);
2216 gclass = &dgclass->generic_class;
2217 gclass->is_dynamic = 1;
2219 gclass = g_new0 (MonoGenericClass, 1);
2222 gclass->container_class = container_class;
2223 gclass->context.class_inst = inst;
2224 gclass->context.method_inst = NULL;
2226 g_hash_table_insert (generic_class_cache, gclass, gclass);
2228 mono_loader_unlock ();
2234 * mono_metadata_inflate_generic_inst:
2236 * Instantiate the generic instance @ginst with the context @context.
2240 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context)
2242 MonoType **type_argv;
2243 MonoGenericInst *nginst;
2246 if (!ginst->is_open)
2249 type_argv = g_new0 (MonoType*, ginst->type_argc);
2251 for (i = 0; i < ginst->type_argc; i++)
2252 type_argv [i] = mono_class_inflate_generic_type (ginst->type_argv [i], context);
2254 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2256 for (i = 0; i < ginst->type_argc; i++)
2257 mono_metadata_free_type (type_argv [i]);
2264 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2265 int count, const char *ptr, const char **rptr)
2267 MonoType **type_argv;
2268 MonoGenericInst *ginst;
2271 type_argv = g_new0 (MonoType*, count);
2273 for (i = 0; i < count; i++) {
2274 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2285 ginst = mono_metadata_get_generic_inst (count, type_argv);
2293 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2294 const char *ptr, const char **rptr)
2296 MonoGenericInst *inst;
2301 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
2305 gklass = mono_class_from_mono_type (gtype);
2306 if (!gklass->generic_container)
2309 count = mono_metadata_decode_value (ptr, &ptr);
2310 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
2317 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
2323 * @gc: The generic container to normalize
2324 * @type: The kind of generic parameters the resulting generic-container should contain
2327 static MonoGenericContainer *
2328 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
2330 gboolean is_var = (type == MONO_TYPE_VAR);
2334 g_assert (is_var || type == MONO_TYPE_MVAR);
2337 if (gc->is_method || gc->parent)
2339 * The current MonoGenericContainer is a generic method -> its `parent'
2340 * points to the containing class'es container.
2349 * mono_metadata_parse_generic_param:
2350 * @generic_container: Our MonoClass's or MonoMethodNormal's MonoGenericContainer;
2351 * see mono_metadata_parse_type_full() for details.
2352 * Internal routine to parse a generic type parameter.
2353 * LOCKING: Assumes the loader lock is held.
2355 static MonoGenericParam *
2356 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
2357 MonoTypeEnum type, const char *ptr, const char **rptr)
2359 int index = mono_metadata_decode_value (ptr, &ptr);
2363 generic_container = select_container (generic_container, type);
2364 if (!generic_container) {
2365 /* Create dummy MonoGenericParam */
2366 MonoGenericParam *param = mono_mempool_alloc0 (m->mempool, sizeof (MonoGenericParam));
2367 param->name = mono_mempool_alloc0 (m->mempool, 8);
2368 sprintf ((char*)param->name, "%d", index);
2374 g_assert (index < generic_container->type_argc);
2375 return &generic_container->type_params [index];
2379 * do_mono_metadata_parse_type:
2380 * @type: MonoType to be filled in with the return value
2382 * @generic_context: generics_context
2383 * @ptr: pointer to the encoded type
2384 * @rptr: pointer where the end of the encoded type is saved
2386 * Internal routine used to "fill" the contents of @type from an
2387 * allocated pointer. This is done this way to avoid doing too
2388 * many mini-allocations (particularly for the MonoFieldType which
2389 * most of the time is just a MonoType, but sometimes might be augmented).
2391 * This routine is used by mono_metadata_parse_type and
2392 * mono_metadata_parse_field_type
2394 * This extracts a Type as specified in Partition II (22.2.12)
2396 * Returns: FALSE if the type could not be loaded
2399 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2400 const char *ptr, const char **rptr)
2403 type->type = mono_metadata_decode_value (ptr, &ptr);
2405 switch (type->type){
2406 case MONO_TYPE_VOID:
2407 case MONO_TYPE_BOOLEAN:
2408 case MONO_TYPE_CHAR:
2421 case MONO_TYPE_STRING:
2422 case MONO_TYPE_OBJECT:
2423 case MONO_TYPE_TYPEDBYREF:
2425 case MONO_TYPE_VALUETYPE:
2426 case MONO_TYPE_CLASS: {
2428 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
2429 type->data.klass = mono_class_get (m, token);
2430 if (!type->data.klass)
2434 case MONO_TYPE_SZARRAY: {
2435 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2438 type->data.klass = mono_class_from_mono_type (etype);
2442 type->data.type = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2443 if (!type->data.type)
2446 case MONO_TYPE_FNPTR:
2447 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
2449 case MONO_TYPE_ARRAY:
2450 type->data.array = mono_metadata_parse_array_full (m, container, ptr, &ptr);
2452 case MONO_TYPE_MVAR:
2454 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
2456 case MONO_TYPE_GENERICINST:
2457 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
2460 g_error ("type 0x%02x not handled in do_mono_metadata_parse_type", type->type);
2469 * mono_metadata_free_type:
2470 * @type: type to free
2472 * Free the memory allocated for type @type which is allocated on the heap.
2475 mono_metadata_free_type (MonoType *type)
2477 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
2480 switch (type->type){
2481 case MONO_TYPE_OBJECT:
2482 case MONO_TYPE_STRING:
2483 if (!type->data.klass)
2486 case MONO_TYPE_CLASS:
2487 case MONO_TYPE_VALUETYPE:
2488 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
2492 mono_metadata_free_type (type->data.type);
2494 case MONO_TYPE_FNPTR:
2495 mono_metadata_free_method_signature (type->data.method);
2497 case MONO_TYPE_ARRAY:
2498 mono_metadata_free_array (type->data.array);
2507 hex_dump (const char *buffer, int base, int count)
2509 int show_header = 1;
2517 for (i = 0; i < count; i++){
2520 printf ("\n0x%08x: ", (unsigned char) base + i);
2522 printf ("%02x ", (unsigned char) (buffer [i]));
2529 * @mh: The Method header
2530 * @ptr: Points to the beginning of the Section Data (25.3)
2533 parse_section_data (MonoImage *m, MonoMethodHeader *mh, const unsigned char *ptr)
2535 unsigned char sect_data_flags;
2536 const unsigned char *sptr;
2538 guint32 sect_data_len;
2541 /* align on 32-bit boundary */
2542 sptr = ptr = dword_align (ptr);
2543 sect_data_flags = *ptr;
2546 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
2548 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
2551 sect_data_len = ptr [0];
2555 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
2556 hex_dump (sptr, 0, sect_data_len+8);
2557 g_print ("\nheader: ");
2558 hex_dump (sptr-4, 0, 4);
2562 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
2563 const unsigned char *p = dword_align (ptr);
2565 mh->num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
2566 /* we could just store a pointer if we don't need to byteswap */
2567 mh->clauses = mono_mempool_alloc0 (m->mempool, sizeof (MonoExceptionClause) * mh->num_clauses);
2568 for (i = 0; i < mh->num_clauses; ++i) {
2569 MonoExceptionClause *ec = &mh->clauses [i];
2572 ec->flags = read32 (p);
2573 ec->try_offset = read32 (p + 4);
2574 ec->try_len = read32 (p + 8);
2575 ec->handler_offset = read32 (p + 12);
2576 ec->handler_len = read32 (p + 16);
2577 tof_value = read32 (p + 20);
2580 ec->flags = read16 (p);
2581 ec->try_offset = read16 (p + 2);
2582 ec->try_len = *(p + 4);
2583 ec->handler_offset = read16 (p + 5);
2584 ec->handler_len = *(p + 7);
2585 tof_value = read32 (p + 8);
2588 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2589 ec->data.filter_offset = tof_value;
2590 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
2591 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
2593 ec->data.catch_class = NULL;
2595 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
2599 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
2600 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
2607 * mono_metadata_parse_mh_full:
2608 * @m: metadata context
2609 * @generic_context: generics context
2610 * @ptr: pointer to the method header.
2612 * Decode the method header at @ptr, including pointer to the IL code,
2613 * info about local variables and optional exception tables.
2614 * This is a Mono runtime internal function.
2616 * LOCKING: Assumes the loader lock is held.
2618 * Returns: a MonoMethodHeader allocated from the image mempool.
2621 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
2623 MonoMethodHeader *mh;
2624 unsigned char flags = *(const unsigned char *) ptr;
2625 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
2627 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
2628 const unsigned char *code;
2631 g_return_val_if_fail (ptr != NULL, NULL);
2633 mono_loader_lock ();
2635 case METHOD_HEADER_TINY_FORMAT:
2636 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader));
2639 local_var_sig_tok = 0;
2640 mh->code_size = flags >> 2;
2641 mh->code = (unsigned char*)ptr;
2642 mono_loader_unlock ();
2644 case METHOD_HEADER_TINY_FORMAT1:
2645 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader));
2648 local_var_sig_tok = 0;
2651 * The spec claims 3 bits, but the Beta2 is
2654 mh->code_size = flags >> 2;
2655 mh->code = (unsigned char*)ptr;
2656 mono_loader_unlock ();
2658 case METHOD_HEADER_FAT_FORMAT:
2659 fat_flags = read16 (ptr);
2661 hsize = (fat_flags >> 12) & 0xf;
2662 max_stack = read16 (ptr);
2664 code_size = read32 (ptr);
2666 local_var_sig_tok = read32 (ptr);
2669 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
2674 code = (unsigned char*)ptr;
2676 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
2680 * There are more sections
2682 ptr = (char*)code + code_size;
2685 mono_loader_unlock ();
2689 if (local_var_sig_tok) {
2690 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
2691 const char *locals_ptr;
2692 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
2693 int len=0, i, bsize;
2695 mono_metadata_decode_row (t, (local_var_sig_tok & 0xffffff)-1, cols, 1);
2696 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
2697 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
2698 if (*locals_ptr != 0x07)
2699 g_warning ("wrong signature for locals blob");
2701 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
2702 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader) + (len - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
2703 mh->num_locals = len;
2704 for (i = 0; i < len; ++i) {
2705 mh->locals [i] = mono_metadata_parse_type_full (
2706 m, container, MONO_PARSE_LOCAL, 0, locals_ptr, &locals_ptr);
2707 if (!mh->locals [i]) {
2708 mono_loader_unlock ();
2713 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader));
2716 mh->code_size = code_size;
2717 mh->max_stack = max_stack;
2718 mh->init_locals = init_locals;
2719 if (fat_flags & METHOD_HEADER_MORE_SECTS)
2720 parse_section_data (m, mh, (const unsigned char*)ptr);
2721 mono_loader_unlock ();
2726 * mono_metadata_parse_mh:
2727 * @generic_context: generics context
2728 * @ptr: pointer to the method header.
2730 * Decode the method header at @ptr, including pointer to the IL code,
2731 * info about local variables and optional exception tables.
2732 * This is a Mono runtime internal function.
2734 * Returns: a MonoMethodHeader.
2737 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
2739 MonoMethodHeader *res;
2741 mono_loader_lock ();
2743 res = mono_metadata_parse_mh_full (m, NULL, ptr);
2745 mono_loader_unlock ();
2751 * mono_metadata_free_mh:
2752 * @mh: a method header
2754 * Free the memory allocated for the method header.
2755 * This is a Mono runtime internal function.
2758 mono_metadata_free_mh (MonoMethodHeader *mh)
2760 /* Allocated from the mempool */
2764 * mono_method_header_get_code:
2765 * @header: a MonoMethodHeader pointer
2766 * @code_size: memory location for returning the code size
2767 * @max_stack: memory location for returning the max stack
2769 * Method header accessor to retreive info about the IL code properties:
2770 * a pointer to the IL code itself, the size of the code and the max number
2771 * of stack slots used by the code.
2773 * Returns: pointer to the IL code represented by the method header.
2775 const unsigned char*
2776 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
2779 *code_size = header->code_size;
2781 *max_stack = header->max_stack;
2782 return header->code;
2786 * mono_method_header_get_locals:
2787 * @header: a MonoMethodHeader pointer
2788 * @num_locals: memory location for returning the number of local variables
2789 * @init_locals: memory location for returning the init_locals flag
2791 * Method header accessor to retreive info about the local variables:
2792 * an array of local types, the number of locals and whether the locals
2793 * are supposed to be initialized to 0 on method entry
2795 * Returns: pointer to an array of types of the local variables
2798 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
2801 *num_locals = header->num_locals;
2803 *init_locals = header->init_locals;
2804 return header->locals;
2808 * mono_method_header_get_num_clauses:
2809 * @header: a MonoMethodHeader pointer
2811 * Method header accessor to retreive the number of exception clauses.
2813 * Returns: the number of exception clauses present
2816 mono_method_header_get_num_clauses (MonoMethodHeader *header)
2818 return header->num_clauses;
2822 * mono_method_header_get_clauses:
2823 * @header: a MonoMethodHeader pointer
2824 * @method: MonoMethod the header belongs to
2825 * @iter: pointer to a iterator
2826 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
2828 * Get the info about the exception clauses in the method. Set *iter to NULL to
2829 * initiate the iteration, then call the method repeatedly until it returns FALSE.
2830 * At each iteration, the structure pointed to by clause if filled with the
2831 * exception clause information.
2833 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
2837 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
2839 MonoExceptionClause *sc;
2840 /* later we'll be able to use this interface to parse the clause info on demand,
2841 * without allocating anything.
2843 if (!iter || !header->num_clauses)
2846 *iter = sc = header->clauses;
2852 if (sc < header->clauses + header->num_clauses) {
2861 * mono_metadata_parse_field_type:
2862 * @m: metadata context to extract information from
2863 * @ptr: pointer to the field signature
2864 * @rptr: pointer updated to match the end of the decoded stream
2866 * Parses the field signature, and returns the type information for it.
2868 * Returns: The MonoType that was extracted from @ptr.
2871 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
2873 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
2877 * mono_metadata_parse_param:
2878 * @m: metadata context to extract information from
2879 * @ptr: pointer to the param signature
2880 * @rptr: pointer updated to match the end of the decoded stream
2882 * Parses the param signature, and returns the type information for it.
2884 * Returns: The MonoType that was extracted from @ptr.
2887 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
2889 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
2893 * mono_metadata_token_from_dor:
2894 * @dor_token: A TypeDefOrRef coded index
2896 * dor_token is a TypeDefOrRef coded index: it contains either
2897 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
2898 * bits contain an index into the table.
2900 * Returns: an expanded token
2903 mono_metadata_token_from_dor (guint32 dor_index)
2907 table = dor_index & 0x03;
2908 idx = dor_index >> 2;
2911 case 0: /* TypeDef */
2912 return MONO_TOKEN_TYPE_DEF | idx;
2913 case 1: /* TypeRef */
2914 return MONO_TOKEN_TYPE_REF | idx;
2915 case 2: /* TypeSpec */
2916 return MONO_TOKEN_TYPE_SPEC | idx;
2918 g_assert_not_reached ();
2925 * We use this to pass context information to the row locator
2928 int idx; /* The index that we are trying to locate */
2929 int col_idx; /* The index in the row where idx may be stored */
2930 MonoTableInfo *t; /* pointer to the table */
2935 * How the row locator works.
2940 * ___|___------> _______
2943 * A column in the rows of table A references an index in table B.
2944 * For example A may be the TYPEDEF table and B the METHODDEF table.
2946 * Given an index in table B we want to get the row in table A
2947 * where the column n references our index in B.
2949 * In the locator_t structure:
2951 * col_idx is the column number
2952 * index is the index in table B
2953 * result will be the index in table A
2956 * Table A Table B column (in table A)
2957 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
2958 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
2959 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
2960 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
2961 * METHODSEM PROPERTY ASSOCIATION (encoded index)
2963 * Note that we still don't support encoded indexes.
2967 typedef_locator (const void *a, const void *b)
2969 locator_t *loc = (locator_t *) a;
2970 const char *bb = (const char *) b;
2971 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
2972 guint32 col, col_next;
2974 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
2980 * Need to check that the next row is valid.
2982 if (typedef_index + 1 < loc->t->rows) {
2983 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
2984 if (loc->idx >= col_next)
2987 if (col == col_next)
2991 loc->result = typedef_index;
2997 table_locator (const void *a, const void *b)
2999 locator_t *loc = (locator_t *) a;
3000 const char *bb = (const char *) b;
3001 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3004 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3006 if (loc->idx == col) {
3007 loc->result = table_index;
3017 declsec_locator (const void *a, const void *b)
3019 locator_t *loc = (locator_t *) a;
3020 const char *bb = (const char *) b;
3021 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3024 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3026 if (loc->idx == col) {
3027 loc->result = table_index;
3039 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3040 * which contains IDX.
3043 search_ptr_table (MonoImage *image, int table, int idx)
3045 MonoTableInfo *ptrdef = &image->tables [table];
3048 /* Use a linear search to find our index in the table */
3049 for (i = 0; i < ptrdef->rows; i ++)
3050 /* All the Ptr tables have the same structure */
3051 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3054 if (i < ptrdef->rows)
3061 * mono_metadata_typedef_from_field:
3062 * @meta: metadata context
3063 * @index: FieldDef token
3065 * Returns: the 1-based index into the TypeDef table of the type that
3066 * declared the field described by @index, or 0 if not found.
3069 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3071 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3077 loc.idx = mono_metadata_token_index (index);
3078 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3081 if (meta->uncompressed_metadata)
3082 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3084 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3085 g_assert_not_reached ();
3087 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3088 return loc.result + 1;
3092 * mono_metadata_typedef_from_method:
3093 * @meta: metadata context
3094 * @index: MethodDef token
3096 * Returns: the 1-based index into the TypeDef table of the type that
3097 * declared the method described by @index. 0 if not found.
3100 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3102 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3108 loc.idx = mono_metadata_token_index (index);
3109 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3112 if (meta->uncompressed_metadata)
3113 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3115 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3116 g_assert_not_reached ();
3118 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3119 return loc.result + 1;
3123 * mono_metadata_interfaces_from_typedef_full:
3124 * @meta: metadata context
3125 * @index: typedef token
3127 * The array of interfaces that the @index typedef token implements is returned in
3128 * @interfaces. The number of elemnts in the array is returned in @count.
3130 * LOCKING: Assumes the loader lock is held.
3132 * Returns: TRUE on success, FALSE on failure.
3135 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, MonoGenericContext *context)
3137 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3140 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3149 loc.idx = mono_metadata_token_index (index);
3150 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3153 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3158 * We may end up in the middle of the rows...
3161 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
3167 while (pos < tdef->rows) {
3168 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3169 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3174 mono_loader_lock ();
3175 result = mono_mempool_alloc0 (meta->mempool, sizeof (MonoClass*) * (pos - start));
3176 mono_loader_unlock ();
3179 while (pos < tdef->rows) {
3182 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3183 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3185 iface = mono_class_get_full (
3186 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
3189 result [pos - start] = iface;
3192 *count = pos - start;
3193 *interfaces = result;
3198 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
3200 MonoClass **interfaces;
3203 mono_loader_lock ();
3204 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, NULL);
3205 mono_loader_unlock ();
3213 * mono_metadata_nested_in_typedef:
3214 * @meta: metadata context
3215 * @index: typedef token
3217 * Returns: the 1-based index into the TypeDef table of the type
3218 * where the type described by @index is nested.
3219 * Retruns 0 if @index describes a non-nested type.
3222 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
3224 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3230 loc.idx = mono_metadata_token_index (index);
3231 loc.col_idx = MONO_NESTED_CLASS_NESTED;
3234 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3237 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3238 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
3242 * mono_metadata_nesting_typedef:
3243 * @meta: metadata context
3244 * @index: typedef token
3246 * Returns: the 1-based index into the TypeDef table of the first type
3247 * that is nested inside the type described by @index. The search starts at
3248 * @start_index. returns 0 if no such type is found.
3251 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
3253 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3255 guint32 class_index = mono_metadata_token_index (index);
3260 start = start_index;
3262 while (start <= tdef->rows) {
3263 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
3269 if (start > tdef->rows)
3276 * mono_metadata_packing_from_typedef:
3277 * @meta: metadata context
3278 * @index: token representing a type
3280 * Returns: the info stored in the ClassLAyout table for the given typedef token
3281 * into the @packing and @size pointers.
3282 * Returns 0 if the info is not found.
3285 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
3287 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
3289 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
3294 loc.idx = mono_metadata_token_index (index);
3295 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
3298 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3301 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
3303 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
3305 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
3307 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3308 return loc.result + 1;
3312 * mono_metadata_custom_attrs_from_index:
3313 * @meta: metadata context
3314 * @index: token representing the parent
3316 * Returns: the 1-based index into the CustomAttribute table of the first
3317 * attribute which belongs to the metadata object described by @index.
3318 * Returns 0 if no such attribute is found.
3321 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
3323 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
3330 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
3333 /* FIXME: Index translation */
3335 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3338 /* Find the first entry by searching backwards */
3339 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
3342 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3343 return loc.result + 1;
3347 * mono_metadata_declsec_from_index:
3348 * @meta: metadata context
3349 * @index: token representing the parent
3351 * Returns: the 0-based index into the DeclarativeSecurity table of the first
3352 * attribute which belongs to the metadata object described by @index.
3353 * Returns -1 if no such attribute is found.
3356 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
3358 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
3365 loc.col_idx = MONO_DECL_SECURITY_PARENT;
3368 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
3371 /* Find the first entry by searching backwards */
3372 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
3380 mono_backtrace (int limit)
3385 backtrace (array, limit);
3386 names = backtrace_symbols (array, limit);
3387 for (i =0; i < limit; ++i) {
3388 g_print ("\t%s\n", names [i]);
3395 /*#define __alignof__(a) sizeof(a)*/
3396 #define __alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
3401 * @t: the type to return the size of
3403 * Returns: the number of bytes required to hold an instance of this
3407 mono_type_size (MonoType *t, int *align)
3414 *align = __alignof__(gpointer);
3415 return sizeof (gpointer);
3419 case MONO_TYPE_VOID:
3422 case MONO_TYPE_BOOLEAN:
3423 *align = __alignof__(gint8);
3427 *align = __alignof__(gint8);
3429 case MONO_TYPE_CHAR:
3432 *align = __alignof__(gint16);
3436 *align = __alignof__(gint32);
3439 *align = __alignof__(float);
3443 *align = __alignof__(gint64);
3446 *align = __alignof__(double);
3450 *align = __alignof__(gpointer);
3451 return sizeof (gpointer);
3452 case MONO_TYPE_STRING:
3453 *align = __alignof__(gpointer);
3454 return sizeof (gpointer);
3455 case MONO_TYPE_OBJECT:
3456 *align = __alignof__(gpointer);
3457 return sizeof (gpointer);
3458 case MONO_TYPE_VALUETYPE: {
3459 if (t->data.klass->enumtype)
3460 return mono_type_size (t->data.klass->enum_basetype, align);
3462 return mono_class_value_size (t->data.klass, (guint32*)align);
3464 case MONO_TYPE_CLASS:
3465 case MONO_TYPE_SZARRAY:
3467 case MONO_TYPE_FNPTR:
3468 case MONO_TYPE_ARRAY:
3469 *align = __alignof__(gpointer);
3470 return sizeof (gpointer);
3471 case MONO_TYPE_TYPEDBYREF:
3472 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
3473 case MONO_TYPE_GENERICINST: {
3474 MonoGenericClass *gclass = t->data.generic_class;
3475 MonoClass *container_class = gclass->container_class;
3477 // g_assert (!gclass->inst->is_open);
3479 if (container_class->valuetype) {
3480 if (container_class->enumtype)
3481 return mono_type_size (container_class->enum_basetype, align);
3483 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3485 *align = __alignof__(gpointer);
3486 return sizeof (gpointer);
3490 case MONO_TYPE_MVAR:
3491 /* FIXME: Martin, this is wrong. */
3492 *align = __alignof__(gpointer);
3493 return sizeof (gpointer);
3495 g_error ("mono_type_size: type 0x%02x unknown", t->type);
3501 * mono_type_stack_size:
3502 * @t: the type to return the size it uses on the stack
3504 * Returns: the number of bytes required to hold an instance of this
3505 * type on the runtime stack
3508 mono_type_stack_size (MonoType *t, int *align)
3512 g_assert (t != NULL);
3518 *align = __alignof__(gpointer);
3519 return sizeof (gpointer);
3523 case MONO_TYPE_BOOLEAN:
3524 case MONO_TYPE_CHAR:
3533 case MONO_TYPE_STRING:
3534 case MONO_TYPE_OBJECT:
3535 case MONO_TYPE_CLASS:
3536 case MONO_TYPE_SZARRAY:
3538 case MONO_TYPE_FNPTR:
3539 case MONO_TYPE_ARRAY:
3540 *align = __alignof__(gpointer);
3541 return sizeof (gpointer);
3542 case MONO_TYPE_TYPEDBYREF:
3543 *align = __alignof__(gpointer);
3544 return sizeof (gpointer) * 3;
3546 *align = __alignof__(float);
3547 return sizeof (float);
3550 *align = __alignof__(gint64);
3551 return sizeof (gint64);
3553 *align = __alignof__(double);
3554 return sizeof (double);
3555 case MONO_TYPE_VALUETYPE: {
3558 if (t->data.klass->enumtype)
3559 return mono_type_stack_size (t->data.klass->enum_basetype, align);
3561 size = mono_class_value_size (t->data.klass, (guint32*)align);
3563 *align = *align + __alignof__(gpointer) - 1;
3564 *align &= ~(__alignof__(gpointer) - 1);
3566 size += sizeof (gpointer) - 1;
3567 size &= ~(sizeof (gpointer) - 1);
3572 case MONO_TYPE_GENERICINST: {
3573 MonoGenericClass *gclass = t->data.generic_class;
3574 MonoClass *container_class = gclass->container_class;
3576 g_assert (!gclass->context.class_inst->is_open);
3578 if (container_class->valuetype) {
3579 if (container_class->enumtype)
3580 return mono_type_stack_size (container_class->enum_basetype, align);
3582 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3584 *align = *align + __alignof__(gpointer) - 1;
3585 *align &= ~(__alignof__(gpointer) - 1);
3587 size += sizeof (gpointer) - 1;
3588 size &= ~(sizeof (gpointer) - 1);
3593 *align = __alignof__(gpointer);
3594 return sizeof (gpointer);
3598 g_error ("type 0x%02x unknown", t->type);
3604 mono_type_generic_inst_is_valuetype (MonoType *type)
3606 g_assert (type->type == MONO_TYPE_GENERICINST);
3607 return type->data.generic_class->container_class->valuetype;
3611 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
3613 return gclass->container_class->valuetype;
3617 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
3620 MonoGenericInst *i1 = g1->context.class_inst;
3621 MonoGenericInst *i2 = g2->context.class_inst;
3623 if (i1->type_argc != i2->type_argc || g1->is_dynamic != g2->is_dynamic)
3625 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
3627 for (i = 0; i < i1->type_argc; ++i) {
3628 if (!do_mono_metadata_type_equal (i1->type_argv [i], i2->type_argv [i], signature_only))
3635 mono_metadata_generic_context_hash (const MonoGenericContext *context)
3637 /* FIXME: check if this seed is good enough */
3638 guint hash = 0xc01dfee7;
3639 if (context->class_inst)
3640 hash = ((hash << 5) - hash) ^ context->class_inst->id;
3641 if (context->method_inst)
3642 hash = ((hash << 5) - hash) ^ context->method_inst->id;
3647 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
3649 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
3653 * mono_metadata_type_hash:
3656 * Computes an hash value for @t1 to be used in GHashTable.
3659 mono_metadata_type_hash (MonoType *t1)
3661 guint hash = t1->type;
3663 hash |= t1->byref << 6; /* do not collide with t1->type values */
3665 case MONO_TYPE_VALUETYPE:
3666 case MONO_TYPE_CLASS:
3667 case MONO_TYPE_SZARRAY:
3668 /* check if the distribution is good enough */
3669 return ((hash << 5) - hash) ^ g_str_hash (t1->data.klass->name);
3671 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
3672 case MONO_TYPE_ARRAY:
3673 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
3674 case MONO_TYPE_GENERICINST:
3675 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
3681 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
3685 if (p1->num != p2->num)
3688 if (p1->owner == p2->owner)
3692 * If `signature_only' is true, we're comparing two (method) signatures.
3693 * In this case, the owner of two type parameters doesn't need to match.
3696 return signature_only;
3700 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
3704 if (c1->generic_class && c2->generic_class)
3705 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
3706 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
3707 return mono_metadata_generic_param_equal (
3708 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
3709 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
3710 return mono_metadata_generic_param_equal (
3711 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
3712 if (signature_only &&
3713 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
3714 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
3719 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
3721 gpointer iter1 = 0, iter2 = 0;
3725 if (s1->call_convention != s2->call_convention)
3727 if (s1->sentinelpos != s2->sentinelpos)
3729 if (s1->hasthis != s2->hasthis)
3731 if (s1->explicit_this != s2->explicit_this)
3733 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
3735 if (s1->param_count != s2->param_count)
3739 MonoType *t1 = mono_signature_get_params (s1, &iter1);
3740 MonoType *t2 = mono_signature_get_params (s2, &iter2);
3742 if (t1 == NULL || t2 == NULL)
3744 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
3750 * mono_metadata_type_equal:
3754 * Determine if @t1 and @t2 represent the same type.
3755 * Returns: #TRUE if @t1 and @t2 are equal.
3758 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
3760 if (t1->type != t2->type || t1->byref != t2->byref)
3764 case MONO_TYPE_VOID:
3765 case MONO_TYPE_BOOLEAN:
3766 case MONO_TYPE_CHAR:
3777 case MONO_TYPE_STRING:
3780 case MONO_TYPE_OBJECT:
3781 case MONO_TYPE_TYPEDBYREF:
3783 case MONO_TYPE_VALUETYPE:
3784 case MONO_TYPE_CLASS:
3785 case MONO_TYPE_SZARRAY:
3786 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
3788 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
3789 case MONO_TYPE_ARRAY:
3790 if (t1->data.array->rank != t2->data.array->rank)
3792 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
3793 case MONO_TYPE_GENERICINST:
3794 return _mono_metadata_generic_class_equal (
3795 t1->data.generic_class, t2->data.generic_class, signature_only);
3797 return mono_metadata_generic_param_equal (
3798 t1->data.generic_param, t2->data.generic_param, signature_only);
3799 case MONO_TYPE_MVAR:
3800 return mono_metadata_generic_param_equal (
3801 t1->data.generic_param, t2->data.generic_param, signature_only);
3802 case MONO_TYPE_FNPTR:
3803 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
3805 g_error ("implement type compare for %0x!", t1->type);
3813 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
3815 return do_mono_metadata_type_equal (t1, t2, FALSE);
3819 * mono_metadata_signature_equal:
3820 * @sig1: a signature
3821 * @sig2: another signature
3823 * Determine if @sig1 and @sig2 represent the same signature, with the
3824 * same number of arguments and the same types.
3825 * Returns: #TRUE if @sig1 and @sig2 are equal.
3828 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3832 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
3835 if (sig1->generic_param_count != sig2->generic_param_count)
3839 * We're just comparing the signatures of two methods here:
3841 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
3842 * U and V are equal here.
3844 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
3847 for (i = 0; i < sig1->param_count; i++) {
3848 MonoType *p1 = sig1->params[i];
3849 MonoType *p2 = sig2->params[i];
3851 /* if (p1->attrs != p2->attrs)
3854 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
3858 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
3864 * mono_metadata_type_dup:
3865 * @mp: mempool to use
3866 * @original: type to duplicate
3868 * Returns: copy of type allocated from mempool (or from the heap, if @mp is null).
3871 mono_metadata_type_dup (MonoMemPool *mp, const MonoType *o)
3874 int sizeof_o = sizeof (MonoType);
3876 sizeof_o += (o->num_mods - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod);
3878 mono_loader_lock ();
3879 r = mp ? mono_mempool_alloc0 (mp, sizeof_o) : g_malloc (sizeof_o);
3880 mono_loader_unlock ();
3882 memcpy (r, o, sizeof_o);
3884 if (o->type == MONO_TYPE_PTR) {
3885 r->data.type = mono_metadata_type_dup (mp, o->data.type);
3886 } else if (o->type == MONO_TYPE_ARRAY) {
3887 /* FIXME: should mono_dup_array_type() use mempools? */
3889 r->data.array = mono_dup_array_type (o->data.array);
3890 } else if (o->type == MONO_TYPE_FNPTR) {
3891 /* FIXME: should mono_metadata_signature_deep_dup() use mempools? */
3893 r->data.method = mono_metadata_signature_deep_dup (o->data.method);
3899 mono_signature_hash (MonoMethodSignature *sig)
3901 guint i, res = sig->ret->type;
3903 for (i = 0; i < sig->param_count; i++)
3904 res = (res << 5) - res + mono_type_hash (sig->params[i]);
3910 * mono_metadata_encode_value:
3911 * @value: value to encode
3912 * @buf: buffer where to write the compressed representation
3913 * @endbuf: pointer updated to point at the end of the encoded output
3915 * Encodes the value @value in the compressed representation used
3916 * in metadata and stores the result in @buf. @buf needs to be big
3917 * enough to hold the data (4 bytes).
3920 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
3926 else if (value < 0x4000) {
3927 p [0] = 0x80 | (value >> 8);
3928 p [1] = value & 0xff;
3931 p [0] = (value >> 24) | 0xc0;
3932 p [1] = (value >> 16) & 0xff;
3933 p [2] = (value >> 8) & 0xff;
3934 p [3] = value & 0xff;
3942 * mono_metadata_field_info:
3943 * @meta: the Image the field is defined in
3944 * @index: the index in the field table representing the field
3945 * @offset: a pointer to an integer where to store the offset that
3946 * may have been specified for the field in a FieldLayout table
3947 * @rva: a pointer to the RVA of the field data in the image that
3948 * may have been defined in a FieldRVA table
3949 * @marshal_spec: a pointer to the marshal spec that may have been
3950 * defined for the field in a FieldMarshal table.
3952 * Gather info for field @index that may have been defined in the FieldLayout,
3953 * FieldRVA and FieldMarshal tables.
3954 * Either of offset, rva and marshal_spec can be NULL if you're not interested
3958 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
3959 MonoMarshalSpec **marshal_spec)
3961 MonoTableInfo *tdef;
3964 loc.idx = index + 1;
3965 if (meta->uncompressed_metadata)
3966 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3969 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
3971 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
3974 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
3975 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
3977 *offset = (guint32)-1;
3981 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
3983 loc.col_idx = MONO_FIELD_RVA_FIELD;
3986 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
3988 * LAMESPEC: There is no signature, no nothing, just the raw data.
3990 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
3998 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
3999 *marshal_spec = mono_metadata_parse_marshal_spec (meta, p);
4006 * mono_metadata_get_constant_index:
4007 * @meta: the Image the field is defined in
4008 * @index: the token that may have a row defined in the constants table
4009 * @hint: possible position for the row
4011 * @token must be a FieldDef, ParamDef or PropertyDef token.
4013 * Returns: the index into the Constants table or 0 if not found.
4016 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4018 MonoTableInfo *tdef;
4020 guint32 index = mono_metadata_token_index (token);
4022 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4023 index <<= MONO_HASCONSTANT_BITS;
4024 switch (mono_metadata_token_table (token)) {
4025 case MONO_TABLE_FIELD:
4026 index |= MONO_HASCONSTANT_FIEDDEF;
4028 case MONO_TABLE_PARAM:
4029 index |= MONO_HASCONSTANT_PARAM;
4031 case MONO_TABLE_PROPERTY:
4032 index |= MONO_HASCONSTANT_PROPERTY;
4035 g_warning ("Not a valid token for the constant table: 0x%08x", token);
4039 loc.col_idx = MONO_CONSTANT_PARENT;
4042 /* FIXME: Index translation */
4044 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
4047 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4048 return loc.result + 1;
4054 * mono_metadata_events_from_typedef:
4055 * @meta: metadata context
4056 * @index: 0-based index (in the TypeDef table) describing a type
4058 * Returns: the 0-based index in the Event table for the events in the
4059 * type. The last event that belongs to the type (plus 1) is stored
4060 * in the @end_idx pointer.
4063 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4067 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
4075 loc.col_idx = MONO_EVENT_MAP_PARENT;
4076 loc.idx = index + 1;
4078 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4081 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
4082 if (loc.result + 1 < tdef->rows) {
4083 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
4085 end = meta->tables [MONO_TABLE_EVENT].rows;
4093 * mono_metadata_methods_from_event:
4094 * @meta: metadata context
4095 * @index: 0-based index (in the Event table) describing a event
4097 * Returns: the 0-based index in the MethodDef table for the methods in the
4098 * event. The last method that belongs to the event (plus 1) is stored
4099 * in the @end_idx pointer.
4102 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
4106 guint32 cols [MONO_METHOD_SEMA_SIZE];
4107 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4113 if (meta->uncompressed_metadata)
4114 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
4117 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4118 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
4120 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4125 * We may end up in the middle of the rows...
4128 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4134 while (end < msemt->rows) {
4135 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4136 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4145 * mono_metadata_properties_from_typedef:
4146 * @meta: metadata context
4147 * @index: 0-based index (in the TypeDef table) describing a type
4149 * Returns: the 0-based index in the Property table for the properties in the
4150 * type. The last property that belongs to the type (plus 1) is stored
4151 * in the @end_idx pointer.
4154 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4158 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
4166 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
4167 loc.idx = index + 1;
4169 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4172 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
4173 if (loc.result + 1 < tdef->rows) {
4174 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
4176 end = meta->tables [MONO_TABLE_PROPERTY].rows;
4184 * mono_metadata_methods_from_property:
4185 * @meta: metadata context
4186 * @index: 0-based index (in the PropertyDef table) describing a property
4188 * Returns: the 0-based index in the MethodDef table for the methods in the
4189 * property. The last method that belongs to the property (plus 1) is stored
4190 * in the @end_idx pointer.
4193 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
4197 guint32 cols [MONO_METHOD_SEMA_SIZE];
4198 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4204 if (meta->uncompressed_metadata)
4205 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
4208 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4209 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
4211 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4216 * We may end up in the middle of the rows...
4219 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4225 while (end < msemt->rows) {
4226 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4227 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4236 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
4239 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
4244 /* No index translation seems to be needed */
4247 loc.col_idx = MONO_IMPLMAP_MEMBER;
4248 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
4250 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4253 return loc.result + 1;
4257 * @image: context where the image is created
4258 * @type_spec: typespec token
4260 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
4264 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
4266 guint32 idx = mono_metadata_token_index (type_spec);
4268 guint32 cols [MONO_TYPESPEC_SIZE];
4271 MonoType *type, *type2;
4273 mono_loader_lock ();
4275 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4277 mono_loader_unlock ();
4281 t = &image->tables [MONO_TABLE_TYPESPEC];
4283 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
4284 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
4285 len = mono_metadata_decode_value (ptr, &ptr);
4287 type = mono_mempool_alloc0 (image->mempool, sizeof (MonoType));
4289 if (*ptr == MONO_TYPE_BYREF) {
4294 if (!do_mono_metadata_parse_type (type, image, NULL, ptr, &ptr)) {
4296 mono_loader_unlock ();
4300 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4304 mono_loader_unlock ();
4308 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type);
4310 mono_loader_unlock ();
4316 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
4318 MonoMarshalSpec *res;
4320 const char *start = ptr;
4322 /* fixme: this is incomplete, but I cant find more infos in the specs */
4324 res = g_new0 (MonoMarshalSpec, 1);
4326 len = mono_metadata_decode_value (ptr, &ptr);
4327 res->native = *ptr++;
4329 if (res->native == MONO_NATIVE_LPARRAY) {
4330 res->data.array_data.param_num = -1;
4331 res->data.array_data.num_elem = -1;
4332 res->data.array_data.elem_mult = -1;
4334 if (ptr - start <= len)
4335 res->data.array_data.elem_type = *ptr++;
4336 if (ptr - start <= len)
4337 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
4338 if (ptr - start <= len)
4339 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4340 if (ptr - start <= len) {
4342 * LAMESPEC: Older spec versions say this parameter comes before
4343 * num_elem. Never spec versions don't talk about elem_mult at
4344 * all, but csc still emits it, and it is used to distinguish
4345 * between param_num being 0, and param_num being omitted.
4346 * So if (param_num == 0) && (num_elem > 0), then
4347 * elem_mult == 0 -> the array size is num_elem
4348 * elem_mult == 1 -> the array size is @param_num + num_elem
4350 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
4354 if (res->native == MONO_NATIVE_BYVALTSTR) {
4355 if (ptr - start <= len)
4356 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4359 if (res->native == MONO_NATIVE_BYVALARRAY) {
4360 if (ptr - start <= len)
4361 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4364 if (res->native == MONO_NATIVE_CUSTOM) {
4365 /* skip unused type guid */
4366 len = mono_metadata_decode_value (ptr, &ptr);
4368 /* skip unused native type name */
4369 len = mono_metadata_decode_value (ptr, &ptr);
4371 /* read custom marshaler type name */
4372 len = mono_metadata_decode_value (ptr, &ptr);
4373 res->data.custom_data.custom_name = g_strndup (ptr, len);
4375 /* read cookie string */
4376 len = mono_metadata_decode_value (ptr, &ptr);
4377 res->data.custom_data.cookie = g_strndup (ptr, len);
4380 if (res->native == MONO_NATIVE_SAFEARRAY) {
4381 res->data.safearray_data.elem_type = 0;
4382 res->data.safearray_data.num_elem = 0;
4383 if (ptr - start <= len)
4384 res->data.safearray_data.elem_type = *ptr++;
4385 if (ptr - start <= len)
4386 res->data.safearray_data.num_elem = *ptr++;
4392 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
4394 if (spec->native == MONO_NATIVE_CUSTOM) {
4395 g_free (spec->data.custom_data.custom_name);
4396 g_free (spec->data.custom_data.cookie);
4402 * mono_type_to_unmanaged:
4404 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
4405 * describing the underlying native reprensetation of the type.
4407 * In addition the value pointed by
4408 * "conv" will contain the kind of marshalling required for this
4409 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
4412 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
4413 gboolean unicode, MonoMarshalConv *conv)
4415 MonoMarshalConv dummy_conv;
4421 *conv = MONO_MARSHAL_CONV_NONE;
4424 return MONO_NATIVE_UINT;
4428 case MONO_TYPE_BOOLEAN:
4430 switch (mspec->native) {
4431 case MONO_NATIVE_VARIANTBOOL:
4432 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
4433 return MONO_NATIVE_VARIANTBOOL;
4434 case MONO_NATIVE_BOOLEAN:
4435 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4436 return MONO_NATIVE_BOOLEAN;
4437 case MONO_NATIVE_I1:
4438 case MONO_NATIVE_U1:
4439 return mspec->native;
4441 g_error ("cant marshal bool to native type %02x", mspec->native);
4444 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4445 return MONO_NATIVE_BOOLEAN;
4446 case MONO_TYPE_CHAR: return MONO_NATIVE_U2;
4447 case MONO_TYPE_I1: return MONO_NATIVE_I1;
4448 case MONO_TYPE_U1: return MONO_NATIVE_U1;
4449 case MONO_TYPE_I2: return MONO_NATIVE_I2;
4450 case MONO_TYPE_U2: return MONO_NATIVE_U2;
4451 case MONO_TYPE_I4: return MONO_NATIVE_I4;
4452 case MONO_TYPE_U4: return MONO_NATIVE_U4;
4453 case MONO_TYPE_I8: return MONO_NATIVE_I8;
4454 case MONO_TYPE_U8: return MONO_NATIVE_U8;
4455 case MONO_TYPE_R4: return MONO_NATIVE_R4;
4456 case MONO_TYPE_R8: return MONO_NATIVE_R8;
4457 case MONO_TYPE_STRING:
4459 switch (mspec->native) {
4460 case MONO_NATIVE_BSTR:
4461 *conv = MONO_MARSHAL_CONV_STR_BSTR;
4462 return MONO_NATIVE_BSTR;
4463 case MONO_NATIVE_LPSTR:
4464 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4465 return MONO_NATIVE_LPSTR;
4466 case MONO_NATIVE_LPWSTR:
4467 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4468 return MONO_NATIVE_LPWSTR;
4469 case MONO_NATIVE_LPTSTR:
4470 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
4471 return MONO_NATIVE_LPTSTR;
4472 case MONO_NATIVE_ANSIBSTR:
4473 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
4474 return MONO_NATIVE_ANSIBSTR;
4475 case MONO_NATIVE_TBSTR:
4476 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
4477 return MONO_NATIVE_TBSTR;
4478 case MONO_NATIVE_BYVALTSTR:
4480 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
4482 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
4483 return MONO_NATIVE_BYVALTSTR;
4485 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);
4489 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4490 return MONO_NATIVE_LPWSTR;
4493 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4494 return MONO_NATIVE_LPSTR;
4496 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
4497 case MONO_TYPE_VALUETYPE: /*FIXME*/
4498 if (type->data.klass->enumtype) {
4499 t = type->data.klass->enum_basetype->type;
4502 if (type->data.klass == mono_defaults.handleref_class){
4503 *conv = MONO_MARSHAL_CONV_HANDLEREF;
4504 return MONO_NATIVE_INT;
4506 return MONO_NATIVE_STRUCT;
4507 case MONO_TYPE_SZARRAY:
4508 case MONO_TYPE_ARRAY:
4510 switch (mspec->native) {
4511 case MONO_NATIVE_BYVALARRAY:
4512 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
4513 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
4515 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
4516 return MONO_NATIVE_BYVALARRAY;
4517 case MONO_NATIVE_SAFEARRAY:
4518 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
4519 return MONO_NATIVE_SAFEARRAY;
4520 case MONO_NATIVE_LPARRAY:
4521 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4522 return MONO_NATIVE_LPARRAY;
4524 g_error ("cant marshal array as native type %02x", mspec->native);
4528 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4529 return MONO_NATIVE_LPARRAY;
4530 case MONO_TYPE_I: return MONO_NATIVE_INT;
4531 case MONO_TYPE_U: return MONO_NATIVE_UINT;
4532 case MONO_TYPE_CLASS:
4533 case MONO_TYPE_OBJECT: {
4534 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
4536 switch (mspec->native) {
4537 case MONO_NATIVE_STRUCT:
4538 return MONO_NATIVE_STRUCT;
4539 case MONO_NATIVE_CUSTOM:
4540 return MONO_NATIVE_CUSTOM;
4541 case MONO_NATIVE_INTERFACE:
4542 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
4543 return MONO_NATIVE_INTERFACE;
4544 case MONO_NATIVE_IDISPATCH:
4545 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
4546 return MONO_NATIVE_IDISPATCH;
4547 case MONO_NATIVE_IUNKNOWN:
4548 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
4549 return MONO_NATIVE_IUNKNOWN;
4550 case MONO_NATIVE_FUNC:
4551 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4552 type->data.klass == mono_defaults.delegate_class ||
4553 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4554 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4555 return MONO_NATIVE_FUNC;
4559 g_error ("cant marshal object as native type %02x", mspec->native);
4562 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4563 type->data.klass == mono_defaults.delegate_class ||
4564 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4565 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4566 return MONO_NATIVE_FUNC;
4568 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
4569 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
4570 return MONO_NATIVE_INT;
4572 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
4573 return MONO_NATIVE_STRUCT;
4575 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
4576 case MONO_TYPE_GENERICINST:
4577 type = &type->data.generic_class->container_class->byval_arg;
4580 case MONO_TYPE_TYPEDBYREF:
4582 g_error ("type 0x%02x not handled in marshal", t);
4584 return MONO_NATIVE_MAX;
4588 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
4591 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
4597 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
4598 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
4600 /* FIXME: Index translation */
4602 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4605 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
4609 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
4611 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
4613 switch (tok & MONO_METHODDEFORREF_MASK) {
4614 case MONO_METHODDEFORREF_METHODDEF:
4615 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
4616 case MONO_METHODDEFORREF_METHODREF:
4617 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
4619 g_assert_not_reached ();
4624 * mono_class_get_overrides_full:
4626 * Return the method overrides belonging to class @type_token in @overrides, and
4627 * the number of overrides in @num_overrides.
4629 * Returns: TRUE on success, FALSE on failure.
4632 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
4633 MonoGenericContext *generic_context)
4636 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
4639 guint32 cols [MONO_METHODIMPL_SIZE];
4640 MonoMethod **result;
4651 loc.col_idx = MONO_METHODIMPL_CLASS;
4652 loc.idx = mono_metadata_token_index (type_token);
4654 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4660 * We may end up in the middle of the rows...
4663 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
4668 while (end < tdef->rows) {
4669 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
4675 result = g_new (MonoMethod*, num * 2);
4676 for (i = 0; i < num; ++i) {
4679 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
4680 method = method_from_method_def_or_ref (
4681 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
4684 result [i * 2] = method;
4685 method = method_from_method_def_or_ref (
4686 image, cols [MONO_METHODIMPL_BODY], generic_context);
4689 result [i * 2 + 1] = method;
4692 *overrides = result;
4694 *num_overrides = num;
4699 * mono_guid_to_string:
4701 * Converts a 16 byte Microsoft GUID to the standard string representation.
4704 mono_guid_to_string (const guint8 *guid)
4706 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
4707 guid[3], guid[2], guid[1], guid[0],
4711 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
4715 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
4717 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
4718 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
4719 guint32 i, token, found;
4720 MonoClass *klass, **res;
4721 GList *cons = NULL, *tmp;
4722 MonoGenericContext *context = &container->context;
4724 *constraints = NULL;
4726 for (i = 0; i < tdef->rows; ++i) {
4727 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
4728 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
4729 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
4730 klass = mono_class_get_full (image, token, context);
4731 cons = g_list_append (cons, klass);
4734 /* contiguous list finished */
4741 res = g_new0 (MonoClass*, found + 1);
4742 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
4743 res [i] = tmp->data;
4751 * mono_metadata_get_generic_param_row:
4754 * @token: TypeOrMethodDef token, owner for GenericParam
4755 * @owner: coded token, set on return
4757 * Returns: 1-based row-id in the GenericParam table whose
4758 * owner is @token. 0 if not found.
4761 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
4763 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4764 guint32 cols [MONO_GENERICPARAM_SIZE];
4771 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
4772 *owner = MONO_TYPEORMETHOD_TYPE;
4773 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
4774 *owner = MONO_TYPEORMETHOD_METHOD;
4776 g_error ("wrong token %x to get_generic_param_row", token);
4779 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
4781 for (i = 0; i < tdef->rows; ++i) {
4782 mono_metadata_decode_row (tdef, i, cols, MONO_GENERICPARAM_SIZE);
4783 if (cols [MONO_GENERICPARAM_OWNER] == *owner)
4791 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
4794 return mono_metadata_get_generic_param_row (image, token, &owner);
4798 * mono_metadata_load_generic_param_constraints:
4800 * Load the generic parameter constraints for the newly created generic type or method
4801 * represented by @token and @container. The @container is the new container which has
4802 * been returned by a call to mono_metadata_load_generic_params() with this @token.
4805 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
4806 MonoGenericContainer *container)
4808 guint32 start_row, i, owner;
4809 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
4811 for (i = 0; i < container->type_argc; i++)
4812 get_constraints (image, start_row + i, &container->type_params [i].constraints, container);
4816 * mono_metadata_load_generic_params:
4818 * Load the type parameters from the type or method definition @token.
4820 * Use this method after parsing a type or method definition to figure out whether it's a generic
4821 * type / method. When parsing a method definition, @parent_container points to the generic container
4822 * of the current class, if any.
4824 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
4825 * creating the type.
4827 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
4829 * LOCKING: Assumes the loader lock is held.
4832 MonoGenericContainer *
4833 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
4835 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4836 guint32 cols [MONO_GENERICPARAM_SIZE];
4837 guint32 i, owner = 0, n;
4838 MonoGenericContainer *container;
4839 MonoGenericParam *params;
4840 MonoGenericContext *context;
4842 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
4844 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4847 container = mono_mempool_alloc0 (image->mempool, sizeof (MonoGenericContainer));
4850 params = g_realloc (params, sizeof (MonoGenericParam) * n);
4851 params [n - 1].owner = container;
4852 params [n - 1].pklass = NULL;
4853 params [n - 1].flags = cols [MONO_GENERICPARAM_FLAGS];
4854 params [n - 1].num = cols [MONO_GENERICPARAM_NUMBER];
4855 params [n - 1].name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
4856 params [n - 1].constraints = NULL;
4857 if (++i > tdef->rows)
4859 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4860 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
4862 container->type_argc = n;
4863 container->type_params = mono_mempool_alloc0 (image->mempool, sizeof (MonoGenericParam) * n);
4864 memcpy (container->type_params, params, sizeof (MonoGenericParam) * n);
4866 container->parent = parent_container;
4868 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
4869 container->is_method = 1;
4871 g_assert (container->parent == NULL || container->is_method);
4873 context = &container->context;
4874 if (container->is_method) {
4875 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
4876 context->method_inst = mono_get_shared_generic_inst (container);
4878 context->class_inst = mono_get_shared_generic_inst (container);
4885 mono_get_shared_generic_inst (MonoGenericContainer *container)
4887 MonoType **type_argv;
4889 MonoGenericInst *nginst;
4892 type_argv = g_new0 (MonoType *, container->type_argc);
4893 helper = g_new0 (MonoType, container->type_argc);
4895 for (i = 0; i < container->type_argc; i++) {
4896 MonoType *t = &helper [i];
4898 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
4899 t->data.generic_param = &container->type_params [i];
4904 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
4913 mono_type_is_byref (MonoType *type)
4919 mono_type_get_type (MonoType *type)
4924 /* For MONO_TYPE_FNPTR */
4925 MonoMethodSignature*
4926 mono_type_get_signature (MonoType *type)
4928 return type->data.method;
4931 /* For MONO_TYPE_CLASS, VALUETYPE */
4933 mono_type_get_class (MonoType *type)
4935 return type->data.klass;
4938 /* For MONO_TYPE_ARRAY */
4940 mono_type_get_array_type (MonoType *type)
4942 return type->data.array;
4945 /* For MONO_TYPE_PTR */
4947 mono_type_get_ptr_type (MonoType *type)
4949 return type->data.type;
4953 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
4955 /* FIXME: implement */
4960 mono_signature_get_return_type (MonoMethodSignature *sig)
4966 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
4972 /* start from the first */
4973 if (sig->param_count) {
4974 *iter = &sig->params [0];
4975 return sig->params [0];
4983 if (type < &sig->params [sig->param_count]) {
4991 mono_signature_get_param_count (MonoMethodSignature *sig)
4993 return sig->param_count;
4997 mono_signature_get_call_conv (MonoMethodSignature *sig)
4999 return sig->call_convention;
5003 mono_signature_vararg_start (MonoMethodSignature *sig)
5005 return sig->sentinelpos;
5009 mono_signature_is_instance (MonoMethodSignature *sig)
5011 return sig->hasthis;
5015 mono_signature_explicit_this (MonoMethodSignature *sig)
5017 return sig->explicit_this;
5020 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
5022 mono_aligned_addr_hash (gconstpointer ptr)
5024 return GPOINTER_TO_UINT (ptr) >> 3;