2 * metadata.c: Routines for accessing the metadata
5 * Miguel de Icaza (miguel@ximian.com)
6 * Paolo Molaro (lupus@ximian.com)
8 * (C) 2001-2002 Ximian, Inc.
17 #include "tabledefs.h"
18 #include "mono-endian.h"
20 #include "tokentype.h"
21 #include "metadata-internals.h"
22 #include "class-internals.h"
25 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
26 const char *ptr, const char **rptr);
28 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
29 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
30 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
31 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
32 gboolean signature_only);
33 static void free_generic_inst (MonoGenericInst *ginst);
34 static void free_generic_class (MonoGenericClass *ginst);
35 static void free_inflated_method (MonoMethodInflated *method);
38 * This enumeration is used to describe the data types in the metadata
49 /* Index into Blob heap */
52 /* Index into String heap */
58 /* Pointer into a table */
61 /* HasConstant:Parent pointer (Param, Field or Property) */
64 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
67 /* CustomAttributeType encoded index */
70 /* HasDeclSecurity index: TypeDef Method or Assembly */
73 /* Implementation coded index: File, Export AssemblyRef */
76 /* HasFieldMarshal coded index: Field or Param table */
79 /* MemberForwardedIndex: Field or Method */
82 /* TypeDefOrRef coded index: typedef, typeref, typespec */
85 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
88 /* MethodDefOrRef coded index: Method or Member Ref table */
91 /* HasSemantic coded index: Event or Property */
94 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
98 const static unsigned char TableSchemas [] = {
99 #define ASSEMBLY_SCHEMA_OFFSET 0
100 MONO_MT_UINT32, /* "HashId" }, */
101 MONO_MT_UINT16, /* "Major" }, */
102 MONO_MT_UINT16, /* "Minor" }, */
103 MONO_MT_UINT16, /* "BuildNumber" }, */
104 MONO_MT_UINT16, /* "RevisionNumber" }, */
105 MONO_MT_UINT32, /* "Flags" }, */
106 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
107 MONO_MT_STRING_IDX, /* "Name" }, */
108 MONO_MT_STRING_IDX, /* "Culture" }, */
111 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
112 MONO_MT_UINT32, /* "OSPlatformID" }, */
113 MONO_MT_UINT32, /* "OSMajor" }, */
114 MONO_MT_UINT32, /* "OSMinor" }, */
117 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
118 MONO_MT_UINT32, /* "Processor" }, */
121 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
122 MONO_MT_UINT16, /* "Major" }, */
123 MONO_MT_UINT16, /* "Minor" }, */
124 MONO_MT_UINT16, /* "Build" }, */
125 MONO_MT_UINT16, /* "Revision" }, */
126 MONO_MT_UINT32, /* "Flags" }, */
127 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
128 MONO_MT_STRING_IDX, /* "Name" }, */
129 MONO_MT_STRING_IDX, /* "Culture" }, */
130 MONO_MT_BLOB_IDX, /* "HashValue" }, */
133 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
134 MONO_MT_UINT32, /* "OSPlatformID" }, */
135 MONO_MT_UINT32, /* "OSMajorVersion" }, */
136 MONO_MT_UINT32, /* "OSMinorVersion" }, */
137 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
140 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
141 MONO_MT_UINT32, /* "Processor" }, */
142 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
145 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
146 MONO_MT_UINT16, /* "PackingSize" }, */
147 MONO_MT_UINT32, /* "ClassSize" }, */
148 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
151 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
152 MONO_MT_UINT8, /* "Type" }, */
153 MONO_MT_UINT8, /* "PaddingZero" }, */
154 MONO_MT_CONST_IDX, /* "Parent" }, */
155 MONO_MT_BLOB_IDX, /* "Value" }, */
158 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
159 MONO_MT_HASCAT_IDX, /* "Parent" }, */
160 MONO_MT_CAT_IDX, /* "Type" }, */
161 MONO_MT_BLOB_IDX, /* "Value" }, */
164 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
165 MONO_MT_UINT16, /* "Action" }, */
166 MONO_MT_HASDEC_IDX, /* "Parent" }, */
167 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
170 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
171 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
172 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
175 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
176 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
177 MONO_MT_STRING_IDX, /* "Name" }, */
178 MONO_MT_TABLE_IDX, /* "EventType" }, TypeDef or TypeRef */
181 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
182 MONO_MT_TABLE_IDX, /* "Event" }, */
185 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
186 MONO_MT_UINT32, /* "Flags" }, */
187 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
188 MONO_MT_STRING_IDX, /* "TypeName" }, */
189 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
190 MONO_MT_IMPL_IDX, /* "Implementation" }, */
193 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
194 MONO_MT_UINT16, /* "Flags" }, */
195 MONO_MT_STRING_IDX, /* "Name" }, */
196 MONO_MT_BLOB_IDX, /* "Signature" }, */
199 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
200 MONO_MT_UINT32, /* "Offset" }, */
201 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
204 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
205 MONO_MT_HFM_IDX, /* "Parent" }, */
206 MONO_MT_BLOB_IDX, /* "NativeType" }, */
209 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
210 MONO_MT_UINT32, /* "RVA" }, */
211 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
214 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
215 MONO_MT_TABLE_IDX, /* "Field" }, */
218 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
219 MONO_MT_UINT32, /* "Flags" }, */
220 MONO_MT_STRING_IDX, /* "Name" }, */
221 MONO_MT_BLOB_IDX, /* "Value" }, */
224 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
225 MONO_MT_UINT16, /* "MappingFlag" }, */
226 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
227 MONO_MT_STRING_IDX, /* "ImportName" }, */
228 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
231 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
232 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
233 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
236 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
237 MONO_MT_UINT32, /* "Offset" }, */
238 MONO_MT_UINT32, /* "Flags" }, */
239 MONO_MT_STRING_IDX, /* "Name" }, */
240 MONO_MT_IMPL_IDX, /* "Implementation" }, */
243 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
244 MONO_MT_MRP_IDX, /* "Class" }, */
245 MONO_MT_STRING_IDX, /* "Name" }, */
246 MONO_MT_BLOB_IDX, /* "Signature" }, */
249 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
250 MONO_MT_UINT32, /* "RVA" }, */
251 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
252 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
253 MONO_MT_STRING_IDX, /* "Name" }, */
254 MONO_MT_BLOB_IDX, /* "Signature" }, */
255 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
258 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
259 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
260 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
261 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
264 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
265 MONO_MT_UINT16, /* "MethodSemantic" }, */
266 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
267 MONO_MT_HS_IDX, /* "Association" }, */
270 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
271 MONO_MT_TABLE_IDX, /* "Method" }, */
274 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
275 MONO_MT_UINT16, /* "Generation" }, */
276 MONO_MT_STRING_IDX, /* "Name" }, */
277 MONO_MT_GUID_IDX, /* "MVID" }, */
278 MONO_MT_GUID_IDX, /* "EncID" }, */
279 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
282 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
283 MONO_MT_STRING_IDX, /* "Name" }, */
286 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
287 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
288 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
291 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
292 MONO_MT_UINT16, /* "Flags" }, */
293 MONO_MT_UINT16, /* "Sequence" }, */
294 MONO_MT_STRING_IDX, /* "Name" }, */
297 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
298 MONO_MT_TABLE_IDX, /* "Param" }, */
301 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
302 MONO_MT_UINT16, /* "Flags" }, */
303 MONO_MT_STRING_IDX, /* "Name" }, */
304 MONO_MT_BLOB_IDX, /* "Type" }, */
307 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
308 MONO_MT_TABLE_IDX, /* "Property" }, */
311 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
312 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
313 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
316 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
317 MONO_MT_BLOB_IDX, /* "Signature" }, */
320 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
321 MONO_MT_UINT32, /* "Flags" }, */
322 MONO_MT_STRING_IDX, /* "Name" }, */
323 MONO_MT_STRING_IDX, /* "Namespace" }, */
324 MONO_MT_TDOR_IDX, /* "Extends" }, */
325 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
326 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
329 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
330 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
331 MONO_MT_STRING_IDX, /* "Name" }, */
332 MONO_MT_STRING_IDX, /* "Namespace" }, */
335 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
336 MONO_MT_BLOB_IDX, /* "Signature" }, */
339 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
340 MONO_MT_UINT16, /* "Number" }, */
341 MONO_MT_UINT16, /* "Flags" }, */
342 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
343 MONO_MT_STRING_IDX, /* "Name" }, */
346 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
347 MONO_MT_MDOR_IDX, /* "Method" }, */
348 MONO_MT_BLOB_IDX, /* "Signature" }, */
351 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
352 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
353 MONO_MT_TDOR_IDX, /* "Constraint" }, */
356 #define NULL_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
360 /* Must be the same order as MONO_TABLE_* */
361 const static unsigned char
362 table_description [] = {
363 MODULE_SCHEMA_OFFSET,
364 TYPEREF_SCHEMA_OFFSET,
365 TYPEDEF_SCHEMA_OFFSET,
366 FIELD_POINTER_SCHEMA_OFFSET,
368 METHOD_POINTER_SCHEMA_OFFSET,
369 METHOD_SCHEMA_OFFSET,
370 PARAM_POINTER_SCHEMA_OFFSET,
372 IFACEMAP_SCHEMA_OFFSET,
373 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
374 CONSTANT_SCHEMA_OFFSET,
375 CUSTOM_ATTR_SCHEMA_OFFSET,
376 FIELD_MARSHAL_SCHEMA_OFFSET,
377 DECL_SEC_SCHEMA_OFFSET,
378 CLASS_LAYOUT_SCHEMA_OFFSET,
379 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
380 STDALON_SIG_SCHEMA_OFFSET,
381 EVENTMAP_SCHEMA_OFFSET,
382 EVENT_POINTER_SCHEMA_OFFSET,
384 PROPERTY_MAP_SCHEMA_OFFSET,
385 PROPERTY_POINTER_SCHEMA_OFFSET,
386 PROPERTY_SCHEMA_OFFSET,
387 METHOD_SEMA_SCHEMA_OFFSET,
388 METHOD_IMPL_SCHEMA_OFFSET,
389 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
390 TYPESPEC_SCHEMA_OFFSET,
391 IMPLMAP_SCHEMA_OFFSET,
392 FIELD_RVA_SCHEMA_OFFSET,
395 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
396 ASSEMBLYPROC_SCHEMA_OFFSET,
397 ASSEMBLYOS_SCHEMA_OFFSET,
398 ASSEMBLYREF_SCHEMA_OFFSET,
399 ASSEMBLYREFPROC_SCHEMA_OFFSET,
400 ASSEMBLYREFOS_SCHEMA_OFFSET,
402 EXPORTED_TYPE_SCHEMA_OFFSET,
403 MANIFEST_SCHEMA_OFFSET,
404 NESTED_CLASS_SCHEMA_OFFSET,
405 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
406 METHOD_SPEC_SCHEMA_OFFSET,
407 GEN_CONSTRAINT_SCHEMA_OFFSET
410 #ifdef HAVE_ARRAY_ELEM_INIT
411 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
412 #define MSGSTRFIELD1(line) str##line
413 static const struct msgstr_t {
414 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
415 #include "mono/cil/tables.def"
418 #define TABLEDEF(a,b) b,
419 #include "mono/cil/tables.def"
422 static const gint16 tableidx [] = {
423 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
424 #include "mono/cil/tables.def"
429 #define TABLEDEF(a,b) b,
430 static const char* const
431 mono_tables_names [] = {
432 #include "mono/cil/tables.def"
438 /* Auxiliary structure used for caching inflated signatures */
440 MonoMethodSignature *sig;
441 MonoGenericContext context;
442 } MonoInflatedMethodSignature;
445 * mono_meta_table_name:
446 * @table: table index
448 * Returns: the name for the @table index
451 mono_meta_table_name (int table)
453 if ((table < 0) || (table > MONO_TABLE_LAST))
456 #ifdef HAVE_ARRAY_ELEM_INIT
457 return (const char*)&tablestr + tableidx [table];
459 return mono_tables_names [table];
463 /* The guy who wrote the spec for this should not be allowed near a
466 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
467 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
468 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
469 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
470 inverse of this mapping.
473 #define rtsize(s,b) (((s) < (1 << (b)) ? 2 : 4))
474 #define idx_size(tableidx) (meta->tables [(tableidx)].rows < 65536 ? 2 : 4)
476 /* Reference: Partition II - 23.2.6 */
478 * mono_metadata_compute_size:
479 * @meta: metadata context
480 * @tableindex: metadata table number
481 * @result_bitfield: pointer to guint32 where to store additional info
483 * mono_metadata_compute_size() computes the lenght in bytes of a single
484 * row in a metadata table. The size of each column is encoded in the
485 * @result_bitfield return value along with the number of columns in the table.
486 * the resulting bitfield should be handed to the mono_metadata_table_size()
487 * and mono_metadata_table_count() macros.
488 * This is a Mono runtime internal only function.
491 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
493 guint32 bitfield = 0;
494 int size = 0, field_size = 0;
497 const unsigned char *description = TableSchemas + table_description [tableindex];
499 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
502 field_size = 4; break;
505 field_size = 2; break;
508 field_size = 1; break;
510 case MONO_MT_BLOB_IDX:
511 field_size = meta->idx_blob_wide ? 4 : 2; break;
513 case MONO_MT_STRING_IDX:
514 field_size = meta->idx_string_wide ? 4 : 2; break;
516 case MONO_MT_GUID_IDX:
517 field_size = meta->idx_guid_wide ? 4 : 2; break;
519 case MONO_MT_TABLE_IDX:
520 /* Uhm, a table index can point to other tables besides the current one
521 * so, it's not correct to use the rowcount of the current table to
522 * get the size for this column - lupus
524 switch (tableindex) {
525 case MONO_TABLE_ASSEMBLYREFOS:
527 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
528 case MONO_TABLE_ASSEMBLYPROCESSOR:
530 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
531 case MONO_TABLE_CLASSLAYOUT:
533 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
534 case MONO_TABLE_EVENTMAP:
535 g_assert (i == 0 || i == 1);
536 field_size = i ? idx_size (MONO_TABLE_EVENT):
537 idx_size(MONO_TABLE_TYPEDEF);
539 case MONO_TABLE_EVENT:
541 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows, meta->tables [MONO_TABLE_TYPEREF].rows);
542 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
543 /*This is a coded token for 3 tables, so takes 2 bits */
544 field_size = rtsize (n, 16 - MONO_TYPEDEFORREF_BITS);
546 case MONO_TABLE_EVENT_POINTER:
548 field_size = idx_size (MONO_TABLE_EVENT); break;
549 case MONO_TABLE_EXPORTEDTYPE:
551 /* the index is in another metadata file, so it must be 4 */
552 field_size = 4; break;
553 case MONO_TABLE_FIELDLAYOUT:
555 field_size = idx_size (MONO_TABLE_FIELD); break;
556 case MONO_TABLE_FIELDRVA:
558 field_size = idx_size (MONO_TABLE_FIELD); break;
559 case MONO_TABLE_FIELD_POINTER:
561 field_size = idx_size (MONO_TABLE_FIELD); break;
562 case MONO_TABLE_IMPLMAP:
564 field_size = idx_size (MONO_TABLE_MODULEREF); break;
565 case MONO_TABLE_INTERFACEIMPL:
567 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
568 case MONO_TABLE_METHOD:
570 field_size = idx_size (MONO_TABLE_PARAM); break;
571 case MONO_TABLE_METHODIMPL:
573 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
574 case MONO_TABLE_METHODSEMANTICS:
576 field_size = idx_size (MONO_TABLE_METHOD); break;
577 case MONO_TABLE_METHOD_POINTER:
579 field_size = idx_size (MONO_TABLE_METHOD); break;
580 case MONO_TABLE_NESTEDCLASS:
581 g_assert (i == 0 || i == 1);
582 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
583 case MONO_TABLE_PARAM_POINTER:
585 field_size = idx_size (MONO_TABLE_PARAM); break;
586 case MONO_TABLE_PROPERTYMAP:
587 g_assert (i == 0 || i == 1);
588 field_size = i ? idx_size (MONO_TABLE_PROPERTY):
589 idx_size(MONO_TABLE_TYPEDEF);
591 case MONO_TABLE_PROPERTY_POINTER:
593 field_size = idx_size (MONO_TABLE_PROPERTY); break;
594 case MONO_TABLE_TYPEDEF:
595 g_assert (i == 4 || i == 5);
596 field_size = i == 4 ? idx_size (MONO_TABLE_FIELD):
597 idx_size(MONO_TABLE_METHOD);
599 case MONO_TABLE_GENERICPARAM:
600 g_assert (i == 2 || i == 4 || i == 5);
602 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
603 /*This is a coded token for 2 tables, so takes 1 bit */
604 field_size = rtsize (n, 16 - MONO_TYPEORMETHOD_BITS);
606 field_size = idx_size (MONO_TABLE_TYPEDEF);
608 field_size = idx_size (MONO_TABLE_TYPEDEF);
611 case MONO_TABLE_GENERICPARAMCONSTRAINT:
613 field_size = idx_size (MONO_TABLE_GENERICPARAM);
617 g_assert_not_reached ();
622 * HasConstant: ParamDef, FieldDef, Property
624 case MONO_MT_CONST_IDX:
625 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
626 meta->tables [MONO_TABLE_FIELD].rows);
627 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
629 /* 2 bits to encode tag */
630 field_size = rtsize (n, 16-2);
634 * HasCustomAttribute: points to any table but
637 case MONO_MT_HASCAT_IDX:
639 * We believe that since the signature and
640 * permission are indexing the Blob heap,
641 * we should consider the blob size first
643 /* I'm not a believer - lupus
644 if (meta->idx_blob_wide){
649 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
650 meta->tables [MONO_TABLE_FIELD].rows);
651 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
652 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
653 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
654 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
655 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
656 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
657 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
658 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
659 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
660 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
661 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
662 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
663 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
664 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
665 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
666 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
667 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
669 /* 5 bits to encode */
670 field_size = rtsize (n, 16-5);
674 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
675 * MemberRef and String.
677 case MONO_MT_CAT_IDX:
678 /* String is a heap, if it is wide, we know the size */
680 if (meta->idx_string_wide){
685 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
686 meta->tables [MONO_TABLE_TYPEDEF].rows);
687 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
688 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
690 /* 3 bits to encode */
691 field_size = rtsize (n, 16-3);
695 * HasDeclSecurity: Typedef, MethodDef, Assembly
697 case MONO_MT_HASDEC_IDX:
698 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
699 meta->tables [MONO_TABLE_METHOD].rows);
700 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
702 /* 2 bits to encode */
703 field_size = rtsize (n, 16-2);
707 * Implementation: File, AssemblyRef, ExportedType
709 case MONO_MT_IMPL_IDX:
710 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
711 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
712 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
714 /* 2 bits to encode tag */
715 field_size = rtsize (n, 16-2);
719 * HasFieldMarshall: FieldDef, ParamDef
721 case MONO_MT_HFM_IDX:
722 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
723 meta->tables [MONO_TABLE_PARAM].rows);
725 /* 1 bit used to encode tag */
726 field_size = rtsize (n, 16-1);
730 * MemberForwarded: FieldDef, MethodDef
733 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
734 meta->tables [MONO_TABLE_METHOD].rows);
736 /* 1 bit used to encode tag */
737 field_size = rtsize (n, 16-1);
741 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
743 * It is TypeDef, _TypeRef_, TypeSpec, instead.
745 case MONO_MT_TDOR_IDX:
746 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
747 meta->tables [MONO_TABLE_TYPEREF].rows);
748 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
750 /* 2 bits to encode */
751 field_size = rtsize (n, 16-2);
755 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
757 case MONO_MT_MRP_IDX:
758 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
759 meta->tables [MONO_TABLE_TYPEREF].rows);
760 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
761 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
762 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
763 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
765 /* 3 bits to encode */
766 field_size = rtsize (n, 16 - 3);
770 * MethodDefOrRef: MethodDef, MemberRef
772 case MONO_MT_MDOR_IDX:
773 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
774 meta->tables [MONO_TABLE_MEMBERREF].rows);
776 /* 1 bit used to encode tag */
777 field_size = rtsize (n, 16-1);
781 * HasSemantics: Property, Event
784 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
785 meta->tables [MONO_TABLE_EVENT].rows);
787 /* 1 bit used to encode tag */
788 field_size = rtsize (n, 16-1);
792 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
795 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
796 meta->tables [MONO_TABLE_MODULEREF].rows);
797 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
798 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
800 /* 2 bits used to encode tag (ECMA spec claims 3) */
801 field_size = rtsize (n, 16 - 2);
806 * encode field size as follows (we just need to
813 bitfield |= (field_size-1) << shift;
816 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
819 *result_bitfield = (i << 24) | bitfield;
824 * mono_metadata_compute_table_bases:
825 * @meta: metadata context to compute table values
827 * Computes the table bases for the metadata structure.
828 * This is an internal function used by the image loader code.
831 mono_metadata_compute_table_bases (MonoImage *meta)
834 const char *base = meta->tables_base;
836 for (i = 0; i < MONO_TABLE_NUM; i++) {
837 MonoTableInfo *table = &meta->tables [i];
838 if (table->rows == 0)
841 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
843 base += table->rows * table->row_size;
848 * mono_metadata_locate:
849 * @meta: metadata context
850 * @table: table code.
851 * @idx: index of element to retrieve from @table.
853 * Returns: a pointer to the @idx element in the metadata table
854 * whose code is @table.
857 mono_metadata_locate (MonoImage *meta, int table, int idx)
859 /* idx == 0 refers always to NULL */
860 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, "");
862 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
866 * mono_metadata_locate_token:
867 * @meta: metadata context
868 * @token: metadata token
870 * Returns: a pointer to the data in the metadata represented by the
874 mono_metadata_locate_token (MonoImage *meta, guint32 token)
876 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
880 * mono_metadata_string_heap:
881 * @meta: metadata context
882 * @index: index into the string heap.
884 * Returns: an in-memory pointer to the @index in the string heap.
887 mono_metadata_string_heap (MonoImage *meta, guint32 index)
889 g_return_val_if_fail (index < meta->heap_strings.size, "");
890 return meta->heap_strings.data + index;
894 * mono_metadata_user_string:
895 * @meta: metadata context
896 * @index: index into the user string heap.
898 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
901 mono_metadata_user_string (MonoImage *meta, guint32 index)
903 g_return_val_if_fail (index < meta->heap_us.size, "");
904 return meta->heap_us.data + index;
908 * mono_metadata_blob_heap:
909 * @meta: metadata context
910 * @index: index into the blob.
912 * Returns: an in-memory pointer to the @index in the Blob heap.
915 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
917 g_return_val_if_fail (index < meta->heap_blob.size, "");
918 return meta->heap_blob.data + index;
922 * mono_metadata_guid_heap:
923 * @meta: metadata context
924 * @index: index into the guid heap.
926 * Returns: an in-memory pointer to the @index in the guid heap.
929 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
932 index *= 16; /* adjust for guid size and 1-based index */
933 g_return_val_if_fail (index < meta->heap_guid.size, "");
934 return meta->heap_guid.data + index;
937 static const unsigned char *
938 dword_align (const unsigned char *ptr)
940 #if SIZEOF_VOID_P == 8
941 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
943 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
948 * mono_metadata_decode_row:
949 * @t: table to extract information from.
950 * @idx: index in table.
951 * @res: array of @res_size cols to store the results in
953 * This decompresses the metadata element @idx in table @t
954 * into the guint32 @res array that has res_size elements
957 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
959 guint32 bitfield = t->size_bitfield;
960 int i, count = mono_metadata_table_count (bitfield);
963 g_assert (idx < t->rows);
964 data = t->base + idx * t->row_size;
966 g_assert (res_size == count);
968 for (i = 0; i < count; i++) {
969 int n = mono_metadata_table_size (bitfield, i);
973 res [i] = *data; break;
975 res [i] = read16 (data); break;
977 res [i] = read32 (data); break;
979 g_assert_not_reached ();
986 * mono_metadata_decode_row_col:
987 * @t: table to extract information from.
988 * @idx: index for row in table.
989 * @col: column in the row.
991 * This function returns the value of column @col from the @idx
992 * row in the table @t.
995 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
997 guint32 bitfield = t->size_bitfield;
999 register const char *data;
1002 g_assert (idx < t->rows);
1003 g_assert (col < mono_metadata_table_count (bitfield));
1004 data = t->base + idx * t->row_size;
1006 n = mono_metadata_table_size (bitfield, 0);
1007 for (i = 0; i < col; ++i) {
1009 n = mono_metadata_table_size (bitfield, i + 1);
1015 return read16 (data);
1017 return read32 (data);
1019 g_assert_not_reached ();
1025 * mono_metadata_decode_blob_size:
1026 * @ptr: pointer to a blob object
1027 * @rptr: the new position of the pointer
1029 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1031 * Returns: the size of the blob object
1034 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1036 const unsigned char *ptr = (const unsigned char *)xptr;
1039 if ((*ptr & 0x80) == 0){
1040 size = ptr [0] & 0x7f;
1042 } else if ((*ptr & 0x40) == 0){
1043 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1046 size = ((ptr [0] & 0x1f) << 24) +
1058 * mono_metadata_decode_value:
1059 * @ptr: pointer to decode from
1060 * @rptr: the new position of the pointer
1062 * This routine decompresses 32-bit values as specified in the "Blob and
1063 * Signature" section (22.2)
1065 * Returns: the decoded value
1068 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1070 const unsigned char *ptr = (const unsigned char *) _ptr;
1071 unsigned char b = *ptr;
1074 if ((b & 0x80) == 0){
1077 } else if ((b & 0x40) == 0){
1078 len = ((b & 0x3f) << 8 | ptr [1]);
1081 len = ((b & 0x1f) << 24) |
1094 * mono_metadata_decode_signed_value:
1095 * @ptr: pointer to decode from
1096 * @rptr: the new position of the pointer
1098 * This routine decompresses 32-bit signed values
1099 * (not specified in the spec)
1101 * Returns: the decoded value
1104 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1106 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1107 gint32 ival = uval >> 1;
1110 /* ival is a truncated 2's complement negative number. */
1112 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1115 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1116 return ival - 0x2000;
1117 if (ival < 0x10000000)
1118 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1119 return ival - 0x10000000;
1120 g_assert (ival < 0x20000000);
1121 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1122 return ival - 0x20000000;
1126 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1127 * using the *Ptr tables in uncompressed metadata, if they are available.
1129 * FIXME: The caller is not forced to call this function, which is error-prone, since
1130 * forgetting to call it would only show up as a bug on uncompressed metadata.
1133 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1135 if (!image->uncompressed_metadata)
1139 case MONO_TABLE_METHOD:
1140 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1141 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1144 case MONO_TABLE_FIELD:
1145 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1146 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1149 case MONO_TABLE_EVENT:
1150 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1151 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1154 case MONO_TABLE_PROPERTY:
1155 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1156 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1159 case MONO_TABLE_PARAM:
1160 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1161 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1170 * mono_metadata_decode_table_row:
1172 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1173 * uncompressed metadata into account, so it should be used to access the
1174 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1175 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1178 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1180 if (image->uncompressed_metadata)
1181 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1183 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1187 * mono_metadata_decode_table_row_col:
1189 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1190 * uncompressed metadata into account, so it should be used to access the
1191 * Method, Field, Param and Event tables.
1193 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1195 if (image->uncompressed_metadata)
1196 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1198 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1202 * mono_metadata_parse_typedef_or_ref:
1203 * @m: a metadata context.
1204 * @ptr: a pointer to an encoded TypedefOrRef in @m
1205 * @rptr: pointer updated to match the end of the decoded stream
1207 * Returns: a token valid in the @m metadata decoded from
1208 * the compressed representation.
1211 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1214 token = mono_metadata_decode_value (ptr, &ptr);
1217 return mono_metadata_token_from_dor (token);
1221 * mono_metadata_parse_custom_mod:
1222 * @m: a metadata context.
1223 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1224 * @ptr: a pointer to (possibly) the start of a custom modifier list
1225 * @rptr: pointer updated to match the end of the decoded stream
1227 * Checks if @ptr points to a type custom modifier compressed representation.
1229 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1232 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1234 MonoCustomMod local;
1235 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1238 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1239 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1246 * mono_metadata_parse_array_full:
1247 * @m: a metadata context.
1248 * @ptr: a pointer to an encoded array description.
1249 * @rptr: pointer updated to match the end of the decoded stream
1251 * Decodes the compressed array description found in the metadata @m at @ptr.
1253 * Returns: a #MonoArrayType structure describing the array type
1254 * and dimensions. Memory is allocated from the image mempool.
1256 * LOCKING: Assumes the loader lock is held.
1259 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1260 const char *ptr, const char **rptr)
1263 MonoArrayType *array = mono_mempool_alloc0 (m->mempool, sizeof (MonoArrayType));
1266 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1269 array->eklass = mono_class_from_mono_type (etype);
1270 array->rank = mono_metadata_decode_value (ptr, &ptr);
1272 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1273 if (array->numsizes)
1274 array->sizes = g_new0 (int, array->numsizes);
1275 for (i = 0; i < array->numsizes; ++i)
1276 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1278 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1279 if (array->numlobounds)
1280 array->lobounds = g_new0 (int, array->numlobounds);
1281 for (i = 0; i < array->numlobounds; ++i)
1282 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1290 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1292 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1296 * mono_metadata_free_array:
1297 * @array: array description
1299 * Frees the array description returned from mono_metadata_parse_array().
1302 mono_metadata_free_array (MonoArrayType *array)
1304 g_free (array->sizes);
1305 g_free (array->lobounds);
1310 * need to add common field and param attributes combinations:
1313 * public static literal
1316 * private static literal
1318 static const MonoType
1320 /* data, attrs, type, nmods, byref, pinned */
1321 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1322 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1323 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1324 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1325 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1326 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1327 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1328 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1329 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1330 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1331 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1332 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1333 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1334 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1335 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1336 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1337 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1338 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1339 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1340 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1341 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1342 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1343 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1344 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1345 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1346 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1347 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1348 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1349 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1350 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1351 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1352 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1353 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1354 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1357 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1359 static GHashTable *type_cache = NULL;
1360 static GHashTable *generic_inst_cache = NULL;
1361 static GHashTable *generic_class_cache = NULL;
1362 static int next_generic_inst_id = 0;
1365 * Protected by the loader lock.
1366 * It has a MonoMethodInflated* as key and value.
1367 * The key lookup will just access the declaring and context fields
1369 static GHashTable *generic_method_cache = NULL;
1372 * Protected by the loader lock.
1373 * It has a MonoInflatedMethodSignature* as key and value.
1375 static GHashTable *generic_signature_cache = NULL;
1377 static guint mono_generic_class_hash (gconstpointer data);
1380 * MonoTypes with modifies are never cached, so we never check or use that field.
1383 mono_type_hash (gconstpointer data)
1385 const MonoType *type = (const MonoType *) data;
1386 if (type->type == MONO_TYPE_GENERICINST)
1387 return mono_generic_class_hash (type->data.generic_class);
1389 return type->type | (type->byref << 8) | (type->attrs << 9);
1393 mono_type_equal (gconstpointer ka, gconstpointer kb)
1395 const MonoType *a = (const MonoType *) ka;
1396 const MonoType *b = (const MonoType *) kb;
1398 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1400 /* need other checks */
1405 mono_metadata_generic_inst_hash (gconstpointer data)
1407 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1411 for (i = 0; i < ginst->type_argc; ++i) {
1413 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1416 return hash ^ (ginst->is_open << 8);
1420 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1424 if (a->id && b->id) {
1427 if (!signature_only)
1431 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1433 for (i = 0; i < a->type_argc; ++i) {
1434 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1441 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1443 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1444 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1446 return mono_generic_inst_equal_full (a, b, FALSE);
1450 mono_generic_class_hash (gconstpointer data)
1452 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1453 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1456 hash += gclass->is_tb_open;
1457 hash += mono_metadata_generic_context_hash (&gclass->context);
1463 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1465 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1466 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1468 return _mono_metadata_generic_class_equal (a, b, FALSE);
1472 * mono_metadata_init:
1474 * Initialize the global variables of this module.
1475 * This is a Mono runtime internal function.
1478 mono_metadata_init (void)
1482 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1483 generic_inst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
1484 generic_class_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
1486 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1487 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1491 * mono_metadata_cleanup:
1493 * Free all resources used by this module.
1494 * This is a Mono runtime internal function.
1497 mono_metadata_cleanup (void)
1499 g_hash_table_destroy (type_cache);
1500 g_hash_table_destroy (generic_inst_cache);
1501 g_hash_table_destroy (generic_class_cache);
1502 if (generic_method_cache)
1503 g_hash_table_destroy (generic_method_cache);
1504 if (generic_signature_cache)
1505 g_hash_table_destroy (generic_signature_cache);
1507 generic_inst_cache = NULL;
1508 generic_class_cache = NULL;
1509 generic_method_cache = NULL;
1510 generic_signature_cache = NULL;
1514 * mono_metadata_parse_type:
1515 * @m: metadata context
1516 * @mode: king of type that may be found at @ptr
1517 * @opt_attrs: optional attributes to store in the returned type
1518 * @ptr: pointer to the type representation
1519 * @rptr: pointer updated to match the end of the decoded stream
1521 * Decode a compressed type description found at @ptr in @m.
1522 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1523 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1524 * This function can be used to decode type descriptions in method signatures,
1525 * field signatures, locals signatures etc.
1527 * To parse a generic type, `generic_container' points to the current class'es
1528 * (the `generic_container' field in the MonoClass) or the current generic method's
1529 * (the `generic_container' field in the MonoMethodNormal) generic container.
1530 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1531 * this MonoGenericContainer.
1532 * This is a Mono runtime internal function.
1534 * LOCKING: Acquires the loader lock.
1536 * Returns: a #MonoType structure representing the decoded type.
1539 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1540 short opt_attrs, const char *ptr, const char **rptr)
1542 MonoType *type, *cached;
1544 gboolean byref = FALSE;
1545 gboolean pinned = FALSE;
1546 const char *tmp_ptr;
1550 mono_loader_lock ();
1552 * According to the spec, custom modifiers should come before the byref
1553 * flag, but the IL produced by ilasm from the following signature:
1554 * object modopt(...) &
1555 * starts with a byref flag, followed by the modifiers. (bug #49802)
1556 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1557 * it would be better to treat byref as real type constructor instead of
1559 * Also, pinned should come before anything else, but some MSV++ produced
1560 * assemblies violate this (#bug 61990).
1563 /* Count the modifiers first */
1568 case MONO_TYPE_PINNED:
1569 case MONO_TYPE_BYREF:
1572 case MONO_TYPE_CMOD_REQD:
1573 case MONO_TYPE_CMOD_OPT:
1575 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1583 type = mono_mempool_alloc0 (m->mempool, sizeof (MonoType) + ((gint32)count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod));
1584 type->num_mods = count;
1586 g_warning ("got more than 64 modifiers in type");
1589 memset (type, 0, sizeof (MonoType));
1592 /* Parse pinned, byref and custom modifiers */
1597 case MONO_TYPE_PINNED:
1601 case MONO_TYPE_BYREF:
1605 case MONO_TYPE_CMOD_REQD:
1606 case MONO_TYPE_CMOD_OPT:
1607 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1615 type->attrs = opt_attrs;
1616 type->byref = byref;
1617 type->pinned = pinned ? 1 : 0;
1619 if (!do_mono_metadata_parse_type (type, m, container, ptr, &ptr)) {
1620 mono_loader_unlock ();
1627 if (!type->num_mods) {
1628 /* no need to free type here, because it is on the stack */
1629 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1630 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1632 /* Consider the case:
1634 class Foo<T> { class Bar {} }
1635 class Test : Foo<Test>.Bar {}
1637 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1638 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1640 We ensure that the MonoClass is in a state that we can canonicalize to:
1642 klass->byval_arg.data.klass == klass
1643 klass->this_arg.data.klass == klass
1645 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1647 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1648 of a MonoClass which currently holds the loader lock. 'type' is local.
1650 if (ret->data.klass == type->data.klass) {
1651 mono_loader_unlock ();
1655 /* No need to use locking since nobody is modifying the hash table */
1656 if ((cached = g_hash_table_lookup (type_cache, type))) {
1657 mono_loader_unlock ();
1662 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1664 if (type == &stype) {
1665 type = mono_mempool_alloc (m->mempool, sizeof (MonoType));
1666 memcpy (type, &stype, sizeof (MonoType));
1668 mono_loader_unlock ();
1673 * LOCKING: Assumes the loader lock is held.
1676 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1677 const char *ptr, const char **rptr)
1679 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1683 * mono_metadata_get_param_attrs:
1685 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1686 * returned memory needs to be freed by the caller. If all the param attributes are
1687 * 0, then NULL is returned.
1690 mono_metadata_get_param_attrs (MonoImage *m, int def)
1692 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1693 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1694 guint32 cols [MONO_PARAM_SIZE];
1695 guint lastp, i, param_index = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def - 1, MONO_METHOD_PARAMLIST);
1698 if (def < methodt->rows)
1699 lastp = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def, MONO_METHOD_PARAMLIST);
1701 lastp = paramt->rows + 1;
1703 for (i = param_index; i < lastp; ++i) {
1704 mono_metadata_decode_row (&m->tables [MONO_TABLE_PARAM], i - 1, cols, MONO_PARAM_SIZE);
1705 if (cols [MONO_PARAM_FLAGS]) {
1707 pattrs = g_new0 (int, 1 + (lastp - param_index));
1708 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1716 * mono_metadata_parse_signature_full:
1717 * @image: metadata context
1718 * @generic_container: generic container
1719 * @toke: metadata token
1721 * Decode a method signature stored in the STANDALONESIG table
1723 * LOCKING: Assumes the loader lock is held.
1725 * Returns: a MonoMethodSignature describing the signature.
1727 MonoMethodSignature*
1728 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1730 MonoTableInfo *tables = image->tables;
1731 guint32 idx = mono_metadata_token_index (token);
1736 return mono_lookup_dynamic_token (image, token, NULL);
1738 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1740 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1742 ptr = mono_metadata_blob_heap (image, sig);
1743 mono_metadata_decode_blob_size (ptr, &ptr);
1745 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1749 * mono_metadata_parse_signature:
1750 * @image: metadata context
1751 * @toke: metadata token
1753 * Decode a method signature stored in the STANDALONESIG table
1755 * Returns: a MonoMethodSignature describing the signature.
1757 MonoMethodSignature*
1758 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1760 return mono_metadata_parse_signature_full (image, NULL, token);
1764 * mono_metadata_signature_alloc:
1765 * @image: metadata context
1766 * @nparmas: number of parameters in the signature
1768 * Allocate a MonoMethodSignature structure with the specified number of params.
1769 * The return type and the params types need to be filled later.
1770 * This is a Mono runtime internal function.
1772 * LOCKING: Assumes the loader lock is held.
1774 * Returns: the new MonoMethodSignature structure.
1776 MonoMethodSignature*
1777 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1779 MonoMethodSignature *sig;
1781 mono_loader_lock ();
1782 sig = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodSignature) + ((gint32)nparams - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
1783 sig->param_count = nparams;
1784 sig->sentinelpos = -1;
1785 mono_loader_unlock ();
1790 MonoMethodSignature*
1791 mono_metadata_signature_dup_full (MonoMemPool *mp, MonoMethodSignature *sig)
1795 sigsize = sizeof (MonoMethodSignature) + (sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *);
1798 MonoMethodSignature *ret;
1799 mono_loader_lock ();
1800 ret = mono_mempool_alloc (mp, sigsize);
1801 mono_loader_unlock ();
1803 memcpy (ret, sig, sigsize);
1806 return g_memdup (sig, sigsize);
1811 * mono_metadata_signature_dup:
1812 * @sig: method signature
1814 * Duplicate an existing MonoMethodSignature so it can be modified.
1815 * This is a Mono runtime internal function.
1817 * Returns: the new MonoMethodSignature structure.
1819 MonoMethodSignature*
1820 mono_metadata_signature_dup (MonoMethodSignature *sig)
1822 return mono_metadata_signature_dup_full (NULL, sig);
1826 * mono_metadata_parse_method_signature:
1827 * @m: metadata context
1828 * @generic_container: generics container
1829 * @def: the MethodDef index or 0 for Ref signatures.
1830 * @ptr: pointer to the signature metadata representation
1831 * @rptr: pointer updated to match the end of the decoded stream
1833 * Decode a method signature stored at @ptr.
1834 * This is a Mono runtime internal function.
1836 * LOCKING: Assumes the loader lock is held.
1838 * Returns: a MonoMethodSignature describing the signature.
1840 MonoMethodSignature *
1841 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1842 int def, const char *ptr, const char **rptr)
1844 MonoMethodSignature *method;
1845 int i, *pattrs = NULL;
1846 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1847 guint32 gen_param_count = 0;
1848 gboolean is_open = FALSE;
1851 gen_param_count = 1;
1856 call_convention = *ptr & 0x0F;
1858 if (gen_param_count)
1859 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1860 param_count = mono_metadata_decode_value (ptr, &ptr);
1863 pattrs = mono_metadata_get_param_attrs (m, def);
1864 method = mono_metadata_signature_alloc (m, param_count);
1865 method->hasthis = hasthis;
1866 method->explicit_this = explicit_this;
1867 method->call_convention = call_convention;
1868 method->generic_param_count = gen_param_count;
1870 if (call_convention != 0xa) {
1871 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1873 mono_metadata_free_method_signature (method);
1877 is_open = mono_class_is_open_constructed_type (method->ret);
1880 for (i = 0; i < method->param_count; ++i) {
1881 if (*ptr == MONO_TYPE_SENTINEL) {
1882 if (method->call_convention != MONO_CALL_VARARG || def)
1883 g_error ("found sentinel for methoddef or no vararg method");
1884 if (method->sentinelpos >= 0)
1885 g_error ("found sentinel twice in the same signature");
1886 method->sentinelpos = i;
1889 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1890 if (!method->params [i]) {
1891 mono_metadata_free_method_signature (method);
1896 is_open = mono_class_is_open_constructed_type (method->params [i]);
1899 /* The sentinel could be missing if the caller does not pass any additional arguments */
1900 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1901 method->sentinelpos = method->param_count;
1903 method->has_type_parameters = is_open;
1905 if (def && (method->call_convention == MONO_CALL_VARARG))
1906 method->sentinelpos = method->param_count;
1913 * Add signature to a cache and increase ref count...
1920 * mono_metadata_parse_method_signature:
1921 * @m: metadata context
1922 * @def: the MethodDef index or 0 for Ref signatures.
1923 * @ptr: pointer to the signature metadata representation
1924 * @rptr: pointer updated to match the end of the decoded stream
1926 * Decode a method signature stored at @ptr.
1927 * This is a Mono runtime internal function.
1929 * LOCKING: Assumes the loader lock is held.
1931 * Returns: a MonoMethodSignature describing the signature.
1933 MonoMethodSignature *
1934 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1936 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1940 * mono_metadata_free_method_signature:
1941 * @sig: signature to destroy
1943 * Free the memory allocated in the signature @sig.
1944 * This method needs to be robust and work also on partially-built
1945 * signatures, so it does extra checks.
1948 mono_metadata_free_method_signature (MonoMethodSignature *sig)
1950 /* Everything is allocated from mempools */
1954 mono_metadata_free_type (sig->ret);
1955 for (i = 0; i < sig->param_count; ++i) {
1956 if (sig->params [i])
1957 mono_metadata_free_type (sig->params [i]);
1963 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
1967 /* Allocated in inflate_generic_signature () */
1969 mono_metadata_free_type (sig->ret);
1970 for (i = 0; i < sig->param_count; ++i) {
1971 if (sig->params [i])
1972 mono_metadata_free_type (sig->params [i]);
1978 inflated_method_equal (gconstpointer a, gconstpointer b)
1980 const MonoMethodInflated *ma = a;
1981 const MonoMethodInflated *mb = b;
1982 if (ma->declaring != mb->declaring)
1984 if (ma->is_mb_open != mb->is_mb_open)
1986 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
1990 inflated_method_hash (gconstpointer a)
1992 const MonoMethodInflated *ma = a;
1993 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring)) + ma->is_mb_open;
1997 inflated_signature_equal (gconstpointer a, gconstpointer b)
1999 const MonoInflatedMethodSignature *sig1 = a;
2000 const MonoInflatedMethodSignature *sig2 = b;
2002 /* sig->sig is assumed to be canonized */
2003 if (sig1->sig != sig2->sig)
2005 /* The generic instances are canonized */
2006 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2010 inflated_signature_hash (gconstpointer a)
2012 const MonoInflatedMethodSignature *sig = a;
2014 /* sig->sig is assumed to be canonized */
2015 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2019 dump_ginst (MonoGenericInst *ginst)
2024 g_print ("Ginst: <");
2025 for (i = 0; i < ginst->type_argc; ++i) {
2028 name = mono_type_get_name (ginst->type_argv [i]);
2029 g_print ("%s", name);
2035 static gboolean type_in_image (MonoType *type, MonoImage *image);
2038 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2040 gpointer iter = NULL;
2043 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2044 if (type_in_image (p, image))
2047 return type_in_image (mono_signature_get_return_type (sig), image);
2051 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2055 for (i = 0; i < ginst->type_argc; ++i) {
2056 if (type_in_image (ginst->type_argv [i], image))
2064 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2066 return gclass->container_class->image == image ||
2067 ginst_in_image (gclass->context.class_inst, image);
2071 type_in_image (MonoType *type, MonoImage *image)
2074 switch (type->type) {
2075 case MONO_TYPE_GENERICINST:
2076 return gclass_in_image (type->data.generic_class, image);
2078 type = type->data.type;
2080 case MONO_TYPE_SZARRAY:
2081 type = &type->data.klass->byval_arg;
2083 case MONO_TYPE_ARRAY:
2084 type = &type->data.array->eklass->byval_arg;
2086 case MONO_TYPE_FNPTR:
2087 return signature_in_image (type->data.method, image);
2089 if (type->data.generic_param->owner) {
2090 g_assert (!type->data.generic_param->owner->is_method);
2091 return type->data.generic_param->owner->owner.klass->image == image;
2093 return type->data.generic_param->image == image;
2095 case MONO_TYPE_MVAR:
2096 if (type->data.generic_param->owner) {
2097 g_assert (type->data.generic_param->owner->is_method);
2098 if (!type->data.generic_param->owner->owner.method)
2099 /* RefEmit created generic param whose method is not finished */
2101 return type->data.generic_param->owner->owner.method->klass->image == image;
2103 return type->data.generic_param->image == image;
2106 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2107 return image == mono_class_from_mono_type (type)->image;
2114 } CleanForImageUserData;
2117 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2119 MonoGenericClass *gclass = key;
2120 CleanForImageUserData *user_data = data;
2122 if (!gclass_in_image (gclass, user_data->image))
2125 user_data->list = g_slist_prepend (user_data->list, gclass);
2130 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2132 MonoGenericInst *ginst = key;
2133 CleanForImageUserData *user_data = data;
2135 if (!ginst_in_image (ginst, user_data->image))
2138 user_data->list = g_slist_prepend (user_data->list, ginst);
2143 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2145 MonoImage *image = data;
2146 MonoMethodInflated *method = key;
2148 return method->declaring->klass->image == image ||
2149 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2150 (method->context.method_inst && ginst_in_image (method->context.method_inst, image));
2154 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2156 MonoImage *image = data;
2157 MonoInflatedMethodSignature *sig = key;
2159 return /* signature_in_image (sig->sig, image) || */
2160 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2161 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2165 mono_metadata_clean_for_image (MonoImage *image)
2167 CleanForImageUserData ginst_data, gclass_data;
2170 /* The data structures could reference each other so we delete them in two phases */
2171 ginst_data.image = gclass_data.image = image;
2172 ginst_data.list = gclass_data.list = NULL;
2174 mono_loader_lock ();
2175 /* Collect the items to delete and remove them from the hash table */
2176 g_hash_table_foreach_steal (generic_inst_cache, steal_ginst_in_image, &ginst_data);
2177 g_hash_table_foreach_steal (generic_class_cache, steal_gclass_in_image, &gclass_data);
2178 if (generic_method_cache)
2179 g_hash_table_foreach_remove (generic_method_cache, inflated_method_in_image, image);
2180 if (generic_signature_cache)
2181 g_hash_table_foreach_remove (generic_signature_cache, inflated_signature_in_image, image);
2182 /* Delete the removed items */
2183 for (l = ginst_data.list; l; l = l->next)
2184 free_generic_inst (l->data);
2185 for (l = gclass_data.list; l; l = l->next)
2186 free_generic_class (l->data);
2187 g_slist_free (ginst_data.list);
2188 g_slist_free (gclass_data.list);
2189 mono_class_unregister_image_generic_subclasses (image);
2190 mono_loader_unlock ();
2194 free_inflated_method (MonoMethodInflated *imethod)
2197 MonoMethod *method = (MonoMethod*)imethod;
2199 if (method->signature)
2200 mono_metadata_free_inflated_signature (method->signature);
2202 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))) {
2203 MonoMethodNormal* mn = (MonoMethodNormal*) method;
2204 MonoMethodHeader *header = mn->header;
2207 /* Allocated in inflate_generic_header () */
2208 for (i = 0; i < header->num_locals; ++i)
2209 mono_metadata_free_type (header->locals [i]);
2210 g_free (header->clauses);
2219 free_generic_inst (MonoGenericInst *ginst)
2223 for (i = 0; i < ginst->type_argc; ++i)
2224 mono_metadata_free_type (ginst->type_argv [i]);
2225 g_free (ginst->type_argv);
2231 free_generic_class (MonoGenericClass *gclass)
2235 /* FIXME: The dynamic case */
2236 if (gclass->cached_class && !gclass->cached_class->image->dynamic && !mono_generic_class_is_generic_type_definition (gclass)) {
2237 MonoClass *class = gclass->cached_class;
2239 /* Allocated in mono_class_init () */
2240 g_free (class->methods);
2241 g_free (class->properties);
2242 /* Allocated in mono_class_setup_fields () */
2243 if (class->fields) {
2244 for (i = 0; i < class->field.count; ++i) {
2245 g_free (class->fields [i].generic_info);
2248 /* Allocated in mono_generic_class_get_class () */
2249 g_free (class->interfaces);
2251 } else if (gclass->is_dynamic) {
2252 MonoDynamicGenericClass *dgclass = (MonoDynamicGenericClass *)gclass;
2254 for (i = 0; i < dgclass->count_fields; ++i) {
2255 MonoClassField *field = dgclass->fields + i;
2256 mono_metadata_free_type (field->type);
2257 if (field->generic_info) {
2258 mono_metadata_free_type (field->generic_info->generic_type);
2259 g_free (field->generic_info);
2261 g_free ((char*)field->name);
2263 for (i = 0; i < dgclass->count_properties; ++i) {
2264 MonoProperty *property = dgclass->properties + i;
2265 g_free ((char*)property->name);
2267 for (i = 0; i < dgclass->count_events; ++i) {
2268 MonoEvent *event = dgclass->events + i;
2269 g_free ((char*)event->name);
2272 g_free (dgclass->methods);
2273 g_free (dgclass->ctors);
2274 g_free (dgclass->fields);
2275 g_free (dgclass->properties);
2276 g_free (dgclass->events);
2277 if (!mono_generic_class_is_generic_type_definition (gclass))
2278 g_free (gclass->cached_class);
2284 free_inflated_signature (MonoInflatedMethodSignature *sig)
2286 mono_metadata_free_inflated_signature (sig->sig);
2291 * LOCKING: assumes the loader lock is held.
2294 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2297 if (!generic_method_cache)
2298 generic_method_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2299 g_hash_table_insert (generic_method_cache, method, method);
2302 if (generic_method_cache)
2303 return g_hash_table_lookup (generic_method_cache, method);
2309 * mono_metadata_get_inflated_signature:
2311 * Given an inflated signature and a generic context, return a canonical copy of the
2312 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2314 MonoMethodSignature *
2315 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2317 MonoInflatedMethodSignature helper;
2318 MonoInflatedMethodSignature *res;
2320 mono_loader_lock ();
2321 if (!generic_signature_cache)
2322 generic_signature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2325 helper.context.class_inst = context->class_inst;
2326 helper.context.method_inst = context->method_inst;
2327 res = g_hash_table_lookup (generic_signature_cache, &helper);
2329 res = g_new0 (MonoInflatedMethodSignature, 1);
2331 res->context.class_inst = context->class_inst;
2332 res->context.method_inst = context->method_inst;
2333 g_hash_table_insert (generic_signature_cache, res, res);
2336 mono_loader_unlock ();
2341 * mono_metadata_get_generic_inst:
2343 * Given a list of types, return a MonoGenericInst that represents that list.
2344 * The returned MonoGenericInst has its own copy of the list of types. The list
2345 * passed in the argument can be freed, modified or disposed of.
2349 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2351 MonoGenericInst *ginst;
2352 MonoGenericInst helper;
2355 helper.type_argc = type_argc;
2356 helper.type_argv = type_argv;
2359 for (i = 0; i < type_argc; ++i)
2360 if (mono_class_is_open_constructed_type (type_argv [i]))
2362 helper.is_open = (i < type_argc);
2364 /*dump_ginst (&helper);*/
2365 mono_loader_lock ();
2366 ginst = g_hash_table_lookup (generic_inst_cache, &helper);
2368 mono_loader_unlock ();
2369 /*g_print (" found cached\n");*/
2373 ginst = g_new0 (MonoGenericInst, 1);
2374 ginst->type_argc = type_argc;
2375 ginst->type_argv = g_new (MonoType*, type_argc);
2376 ginst->id = ++next_generic_inst_id;
2377 ginst->is_open = helper.is_open;
2379 for (i = 0; i < type_argc; ++i)
2380 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2382 g_hash_table_insert (generic_inst_cache, ginst, ginst);
2384 mono_loader_unlock ();
2385 /*g_print (" inserted\n");*/
2390 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2392 MonoGenericContainer *container = container_class->generic_container;
2394 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2396 return inst == container->context.class_inst;
2400 * mono_metadata_lookup_generic_class:
2402 * Returns a MonoGenericClass with the given properties.
2406 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2408 MonoGenericClass *gclass;
2409 MonoGenericClass helper;
2410 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2412 helper.container_class = container_class;
2413 helper.context.class_inst = inst;
2414 helper.context.method_inst = NULL;
2415 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2416 helper.is_tb_open = is_tb_open;
2417 helper.cached_class = NULL;
2419 mono_loader_lock ();
2421 gclass = g_hash_table_lookup (generic_class_cache, &helper);
2423 /* A tripwire just to keep us honest */
2424 g_assert (!helper.cached_class);
2427 mono_loader_unlock ();
2432 MonoDynamicGenericClass *dgclass = g_new0 (MonoDynamicGenericClass, 1);
2433 gclass = &dgclass->generic_class;
2434 gclass->is_dynamic = 1;
2436 gclass = g_new0 (MonoGenericClass, 1);
2439 gclass->is_tb_open = is_tb_open;
2440 gclass->container_class = container_class;
2441 gclass->context.class_inst = inst;
2442 gclass->context.method_inst = NULL;
2443 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2444 gclass->cached_class = container_class;
2446 g_hash_table_insert (generic_class_cache, gclass, gclass);
2448 mono_loader_unlock ();
2454 * mono_metadata_inflate_generic_inst:
2456 * Instantiate the generic instance @ginst with the context @context.
2460 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context)
2462 MonoType **type_argv;
2463 MonoGenericInst *nginst;
2466 if (!ginst->is_open)
2469 type_argv = g_new0 (MonoType*, ginst->type_argc);
2471 for (i = 0; i < ginst->type_argc; i++)
2472 type_argv [i] = mono_class_inflate_generic_type (ginst->type_argv [i], context);
2474 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2476 for (i = 0; i < ginst->type_argc; i++)
2477 mono_metadata_free_type (type_argv [i]);
2484 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2485 int count, const char *ptr, const char **rptr)
2487 MonoType **type_argv;
2488 MonoGenericInst *ginst;
2491 type_argv = g_new0 (MonoType*, count);
2493 for (i = 0; i < count; i++) {
2494 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2505 ginst = mono_metadata_get_generic_inst (count, type_argv);
2513 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2514 const char *ptr, const char **rptr)
2516 MonoGenericInst *inst;
2521 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
2525 gklass = mono_class_from_mono_type (gtype);
2526 if (!gklass->generic_container)
2529 count = mono_metadata_decode_value (ptr, &ptr);
2530 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
2537 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
2543 * @gc: The generic container to normalize
2544 * @type: The kind of generic parameters the resulting generic-container should contain
2547 static MonoGenericContainer *
2548 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
2550 gboolean is_var = (type == MONO_TYPE_VAR);
2554 g_assert (is_var || type == MONO_TYPE_MVAR);
2557 if (gc->is_method || gc->parent)
2559 * The current MonoGenericContainer is a generic method -> its `parent'
2560 * points to the containing class'es container.
2569 * mono_metadata_parse_generic_param:
2570 * @generic_container: Our MonoClass's or MonoMethodNormal's MonoGenericContainer;
2571 * see mono_metadata_parse_type_full() for details.
2572 * Internal routine to parse a generic type parameter.
2573 * LOCKING: Assumes the loader lock is held.
2575 static MonoGenericParam *
2576 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
2577 MonoTypeEnum type, const char *ptr, const char **rptr)
2579 int index = mono_metadata_decode_value (ptr, &ptr);
2583 generic_container = select_container (generic_container, type);
2584 if (!generic_container) {
2585 /* Create dummy MonoGenericParam */
2586 MonoGenericParam *param = mono_mempool_alloc0 (m->mempool, sizeof (MonoGenericParam));
2587 param->name = mono_mempool_alloc0 (m->mempool, 8);
2588 sprintf ((char*)param->name, "%d", index);
2595 g_assert (index < generic_container->type_argc);
2596 return &generic_container->type_params [index];
2600 * do_mono_metadata_parse_type:
2601 * @type: MonoType to be filled in with the return value
2603 * @generic_context: generics_context
2604 * @ptr: pointer to the encoded type
2605 * @rptr: pointer where the end of the encoded type is saved
2607 * Internal routine used to "fill" the contents of @type from an
2608 * allocated pointer. This is done this way to avoid doing too
2609 * many mini-allocations (particularly for the MonoFieldType which
2610 * most of the time is just a MonoType, but sometimes might be augmented).
2612 * This routine is used by mono_metadata_parse_type and
2613 * mono_metadata_parse_field_type
2615 * This extracts a Type as specified in Partition II (22.2.12)
2617 * Returns: FALSE if the type could not be loaded
2620 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2621 const char *ptr, const char **rptr)
2624 type->type = mono_metadata_decode_value (ptr, &ptr);
2626 switch (type->type){
2627 case MONO_TYPE_VOID:
2628 case MONO_TYPE_BOOLEAN:
2629 case MONO_TYPE_CHAR:
2642 case MONO_TYPE_STRING:
2643 case MONO_TYPE_OBJECT:
2644 case MONO_TYPE_TYPEDBYREF:
2646 case MONO_TYPE_VALUETYPE:
2647 case MONO_TYPE_CLASS: {
2649 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
2650 type->data.klass = mono_class_get (m, token);
2651 if (!type->data.klass)
2655 case MONO_TYPE_SZARRAY: {
2656 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2659 type->data.klass = mono_class_from_mono_type (etype);
2663 type->data.type = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2664 if (!type->data.type)
2667 case MONO_TYPE_FNPTR:
2668 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
2670 case MONO_TYPE_ARRAY:
2671 type->data.array = mono_metadata_parse_array_full (m, container, ptr, &ptr);
2673 case MONO_TYPE_MVAR:
2675 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
2677 case MONO_TYPE_GENERICINST:
2678 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
2681 g_error ("type 0x%02x not handled in do_mono_metadata_parse_type", type->type);
2690 * mono_metadata_free_type:
2691 * @type: type to free
2693 * Free the memory allocated for type @type which is allocated on the heap.
2696 mono_metadata_free_type (MonoType *type)
2698 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
2701 switch (type->type){
2702 case MONO_TYPE_OBJECT:
2703 case MONO_TYPE_STRING:
2704 if (!type->data.klass)
2707 case MONO_TYPE_CLASS:
2708 case MONO_TYPE_VALUETYPE:
2709 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
2713 mono_metadata_free_type (type->data.type);
2715 case MONO_TYPE_FNPTR:
2716 mono_metadata_free_method_signature (type->data.method);
2718 case MONO_TYPE_ARRAY:
2719 mono_metadata_free_array (type->data.array);
2728 hex_dump (const char *buffer, int base, int count)
2730 int show_header = 1;
2738 for (i = 0; i < count; i++){
2741 printf ("\n0x%08x: ", (unsigned char) base + i);
2743 printf ("%02x ", (unsigned char) (buffer [i]));
2750 * @mh: The Method header
2751 * @ptr: Points to the beginning of the Section Data (25.3)
2754 parse_section_data (MonoImage *m, MonoMethodHeader *mh, const unsigned char *ptr)
2756 unsigned char sect_data_flags;
2757 const unsigned char *sptr;
2759 guint32 sect_data_len;
2762 /* align on 32-bit boundary */
2763 sptr = ptr = dword_align (ptr);
2764 sect_data_flags = *ptr;
2767 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
2769 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
2772 sect_data_len = ptr [0];
2776 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
2777 hex_dump (sptr, 0, sect_data_len+8);
2778 g_print ("\nheader: ");
2779 hex_dump (sptr-4, 0, 4);
2783 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
2784 const unsigned char *p = dword_align (ptr);
2786 mh->num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
2787 /* we could just store a pointer if we don't need to byteswap */
2788 mh->clauses = mono_mempool_alloc0 (m->mempool, sizeof (MonoExceptionClause) * mh->num_clauses);
2789 for (i = 0; i < mh->num_clauses; ++i) {
2790 MonoExceptionClause *ec = &mh->clauses [i];
2793 ec->flags = read32 (p);
2794 ec->try_offset = read32 (p + 4);
2795 ec->try_len = read32 (p + 8);
2796 ec->handler_offset = read32 (p + 12);
2797 ec->handler_len = read32 (p + 16);
2798 tof_value = read32 (p + 20);
2801 ec->flags = read16 (p);
2802 ec->try_offset = read16 (p + 2);
2803 ec->try_len = *(p + 4);
2804 ec->handler_offset = read16 (p + 5);
2805 ec->handler_len = *(p + 7);
2806 tof_value = read32 (p + 8);
2809 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2810 ec->data.filter_offset = tof_value;
2811 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
2812 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
2814 ec->data.catch_class = NULL;
2816 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
2820 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
2821 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
2828 * mono_metadata_parse_mh_full:
2829 * @m: metadata context
2830 * @generic_context: generics context
2831 * @ptr: pointer to the method header.
2833 * Decode the method header at @ptr, including pointer to the IL code,
2834 * info about local variables and optional exception tables.
2835 * This is a Mono runtime internal function.
2837 * LOCKING: Assumes the loader lock is held.
2839 * Returns: a MonoMethodHeader allocated from the image mempool.
2842 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
2844 MonoMethodHeader *mh;
2845 unsigned char flags = *(const unsigned char *) ptr;
2846 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
2848 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
2849 const unsigned char *code;
2852 g_return_val_if_fail (ptr != NULL, NULL);
2854 mono_loader_lock ();
2856 case METHOD_HEADER_TINY_FORMAT:
2857 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader));
2860 local_var_sig_tok = 0;
2861 mh->code_size = flags >> 2;
2862 mh->code = (unsigned char*)ptr;
2863 mono_loader_unlock ();
2865 case METHOD_HEADER_TINY_FORMAT1:
2866 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader));
2869 local_var_sig_tok = 0;
2872 * The spec claims 3 bits, but the Beta2 is
2875 mh->code_size = flags >> 2;
2876 mh->code = (unsigned char*)ptr;
2877 mono_loader_unlock ();
2879 case METHOD_HEADER_FAT_FORMAT:
2880 fat_flags = read16 (ptr);
2882 hsize = (fat_flags >> 12) & 0xf;
2883 max_stack = read16 (ptr);
2885 code_size = read32 (ptr);
2887 local_var_sig_tok = read32 (ptr);
2890 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
2895 code = (unsigned char*)ptr;
2897 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
2901 * There are more sections
2903 ptr = (char*)code + code_size;
2906 mono_loader_unlock ();
2910 if (local_var_sig_tok) {
2911 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
2912 const char *locals_ptr;
2913 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
2914 int len=0, i, bsize;
2916 mono_metadata_decode_row (t, (local_var_sig_tok & 0xffffff)-1, cols, 1);
2917 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
2918 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
2919 if (*locals_ptr != 0x07)
2920 g_warning ("wrong signature for locals blob");
2922 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
2923 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader) + (len - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
2924 mh->num_locals = len;
2925 for (i = 0; i < len; ++i) {
2926 mh->locals [i] = mono_metadata_parse_type_full (
2927 m, container, MONO_PARSE_LOCAL, 0, locals_ptr, &locals_ptr);
2928 if (!mh->locals [i]) {
2929 mono_loader_unlock ();
2934 mh = mono_mempool_alloc0 (m->mempool, sizeof (MonoMethodHeader));
2937 mh->code_size = code_size;
2938 mh->max_stack = max_stack;
2939 mh->init_locals = init_locals;
2940 if (fat_flags & METHOD_HEADER_MORE_SECTS)
2941 parse_section_data (m, mh, (const unsigned char*)ptr);
2942 mono_loader_unlock ();
2947 * mono_metadata_parse_mh:
2948 * @generic_context: generics context
2949 * @ptr: pointer to the method header.
2951 * Decode the method header at @ptr, including pointer to the IL code,
2952 * info about local variables and optional exception tables.
2953 * This is a Mono runtime internal function.
2955 * Returns: a MonoMethodHeader.
2958 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
2960 MonoMethodHeader *res;
2962 mono_loader_lock ();
2964 res = mono_metadata_parse_mh_full (m, NULL, ptr);
2966 mono_loader_unlock ();
2972 * mono_metadata_free_mh:
2973 * @mh: a method header
2975 * Free the memory allocated for the method header.
2976 * This is a Mono runtime internal function.
2979 mono_metadata_free_mh (MonoMethodHeader *mh)
2981 /* Allocated from the mempool */
2985 * mono_method_header_get_code:
2986 * @header: a MonoMethodHeader pointer
2987 * @code_size: memory location for returning the code size
2988 * @max_stack: memory location for returning the max stack
2990 * Method header accessor to retreive info about the IL code properties:
2991 * a pointer to the IL code itself, the size of the code and the max number
2992 * of stack slots used by the code.
2994 * Returns: pointer to the IL code represented by the method header.
2996 const unsigned char*
2997 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3000 *code_size = header->code_size;
3002 *max_stack = header->max_stack;
3003 return header->code;
3007 * mono_method_header_get_locals:
3008 * @header: a MonoMethodHeader pointer
3009 * @num_locals: memory location for returning the number of local variables
3010 * @init_locals: memory location for returning the init_locals flag
3012 * Method header accessor to retreive info about the local variables:
3013 * an array of local types, the number of locals and whether the locals
3014 * are supposed to be initialized to 0 on method entry
3016 * Returns: pointer to an array of types of the local variables
3019 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3022 *num_locals = header->num_locals;
3024 *init_locals = header->init_locals;
3025 return header->locals;
3029 * mono_method_header_get_num_clauses:
3030 * @header: a MonoMethodHeader pointer
3032 * Method header accessor to retreive the number of exception clauses.
3034 * Returns: the number of exception clauses present
3037 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3039 return header->num_clauses;
3043 * mono_method_header_get_clauses:
3044 * @header: a MonoMethodHeader pointer
3045 * @method: MonoMethod the header belongs to
3046 * @iter: pointer to a iterator
3047 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3049 * Get the info about the exception clauses in the method. Set *iter to NULL to
3050 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3051 * At each iteration, the structure pointed to by clause if filled with the
3052 * exception clause information.
3054 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3058 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3060 MonoExceptionClause *sc;
3061 /* later we'll be able to use this interface to parse the clause info on demand,
3062 * without allocating anything.
3064 if (!iter || !header->num_clauses)
3067 *iter = sc = header->clauses;
3073 if (sc < header->clauses + header->num_clauses) {
3082 * mono_metadata_parse_field_type:
3083 * @m: metadata context to extract information from
3084 * @ptr: pointer to the field signature
3085 * @rptr: pointer updated to match the end of the decoded stream
3087 * Parses the field signature, and returns the type information for it.
3089 * Returns: The MonoType that was extracted from @ptr.
3092 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3094 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3098 * mono_metadata_parse_param:
3099 * @m: metadata context to extract information from
3100 * @ptr: pointer to the param signature
3101 * @rptr: pointer updated to match the end of the decoded stream
3103 * Parses the param signature, and returns the type information for it.
3105 * Returns: The MonoType that was extracted from @ptr.
3108 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3110 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3114 * mono_metadata_token_from_dor:
3115 * @dor_token: A TypeDefOrRef coded index
3117 * dor_token is a TypeDefOrRef coded index: it contains either
3118 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3119 * bits contain an index into the table.
3121 * Returns: an expanded token
3124 mono_metadata_token_from_dor (guint32 dor_index)
3128 table = dor_index & 0x03;
3129 idx = dor_index >> 2;
3132 case 0: /* TypeDef */
3133 return MONO_TOKEN_TYPE_DEF | idx;
3134 case 1: /* TypeRef */
3135 return MONO_TOKEN_TYPE_REF | idx;
3136 case 2: /* TypeSpec */
3137 return MONO_TOKEN_TYPE_SPEC | idx;
3139 g_assert_not_reached ();
3146 * We use this to pass context information to the row locator
3149 int idx; /* The index that we are trying to locate */
3150 int col_idx; /* The index in the row where idx may be stored */
3151 MonoTableInfo *t; /* pointer to the table */
3156 * How the row locator works.
3161 * ___|___------> _______
3164 * A column in the rows of table A references an index in table B.
3165 * For example A may be the TYPEDEF table and B the METHODDEF table.
3167 * Given an index in table B we want to get the row in table A
3168 * where the column n references our index in B.
3170 * In the locator_t structure:
3172 * col_idx is the column number
3173 * index is the index in table B
3174 * result will be the index in table A
3177 * Table A Table B column (in table A)
3178 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3179 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3180 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3181 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3182 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3184 * Note that we still don't support encoded indexes.
3188 typedef_locator (const void *a, const void *b)
3190 locator_t *loc = (locator_t *) a;
3191 const char *bb = (const char *) b;
3192 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3193 guint32 col, col_next;
3195 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3201 * Need to check that the next row is valid.
3203 if (typedef_index + 1 < loc->t->rows) {
3204 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3205 if (loc->idx >= col_next)
3208 if (col == col_next)
3212 loc->result = typedef_index;
3218 table_locator (const void *a, const void *b)
3220 locator_t *loc = (locator_t *) a;
3221 const char *bb = (const char *) b;
3222 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3225 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3227 if (loc->idx == col) {
3228 loc->result = table_index;
3238 declsec_locator (const void *a, const void *b)
3240 locator_t *loc = (locator_t *) a;
3241 const char *bb = (const char *) b;
3242 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3245 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3247 if (loc->idx == col) {
3248 loc->result = table_index;
3260 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3261 * which contains IDX.
3264 search_ptr_table (MonoImage *image, int table, int idx)
3266 MonoTableInfo *ptrdef = &image->tables [table];
3269 /* Use a linear search to find our index in the table */
3270 for (i = 0; i < ptrdef->rows; i ++)
3271 /* All the Ptr tables have the same structure */
3272 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3275 if (i < ptrdef->rows)
3282 * mono_metadata_typedef_from_field:
3283 * @meta: metadata context
3284 * @index: FieldDef token
3286 * Returns: the 1-based index into the TypeDef table of the type that
3287 * declared the field described by @index, or 0 if not found.
3290 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3292 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3298 loc.idx = mono_metadata_token_index (index);
3299 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3302 if (meta->uncompressed_metadata)
3303 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3305 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3306 g_assert_not_reached ();
3308 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3309 return loc.result + 1;
3313 * mono_metadata_typedef_from_method:
3314 * @meta: metadata context
3315 * @index: MethodDef token
3317 * Returns: the 1-based index into the TypeDef table of the type that
3318 * declared the method described by @index. 0 if not found.
3321 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3323 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3329 loc.idx = mono_metadata_token_index (index);
3330 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3333 if (meta->uncompressed_metadata)
3334 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3336 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3337 g_assert_not_reached ();
3339 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3340 return loc.result + 1;
3344 * mono_metadata_interfaces_from_typedef_full:
3345 * @meta: metadata context
3346 * @index: typedef token
3348 * The array of interfaces that the @index typedef token implements is returned in
3349 * @interfaces. The number of elemnts in the array is returned in @count.
3351 * LOCKING: Assumes the loader lock is held.
3353 * Returns: TRUE on success, FALSE on failure.
3356 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, MonoGenericContext *context)
3358 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3361 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3370 loc.idx = mono_metadata_token_index (index);
3371 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3374 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3379 * We may end up in the middle of the rows...
3382 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
3388 while (pos < tdef->rows) {
3389 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3390 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3395 mono_loader_lock ();
3396 result = mono_mempool_alloc0 (meta->mempool, sizeof (MonoClass*) * (pos - start));
3397 mono_loader_unlock ();
3400 while (pos < tdef->rows) {
3403 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3404 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3406 iface = mono_class_get_full (
3407 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
3410 result [pos - start] = iface;
3413 *count = pos - start;
3414 *interfaces = result;
3419 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
3421 MonoClass **interfaces;
3424 mono_loader_lock ();
3425 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, NULL);
3426 mono_loader_unlock ();
3434 * mono_metadata_nested_in_typedef:
3435 * @meta: metadata context
3436 * @index: typedef token
3438 * Returns: the 1-based index into the TypeDef table of the type
3439 * where the type described by @index is nested.
3440 * Retruns 0 if @index describes a non-nested type.
3443 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
3445 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3451 loc.idx = mono_metadata_token_index (index);
3452 loc.col_idx = MONO_NESTED_CLASS_NESTED;
3455 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3458 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3459 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
3463 * mono_metadata_nesting_typedef:
3464 * @meta: metadata context
3465 * @index: typedef token
3467 * Returns: the 1-based index into the TypeDef table of the first type
3468 * that is nested inside the type described by @index. The search starts at
3469 * @start_index. returns 0 if no such type is found.
3472 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
3474 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3476 guint32 class_index = mono_metadata_token_index (index);
3481 start = start_index;
3483 while (start <= tdef->rows) {
3484 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
3490 if (start > tdef->rows)
3497 * mono_metadata_packing_from_typedef:
3498 * @meta: metadata context
3499 * @index: token representing a type
3501 * Returns: the info stored in the ClassLAyout table for the given typedef token
3502 * into the @packing and @size pointers.
3503 * Returns 0 if the info is not found.
3506 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
3508 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
3510 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
3515 loc.idx = mono_metadata_token_index (index);
3516 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
3519 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3522 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
3524 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
3526 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
3528 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3529 return loc.result + 1;
3533 * mono_metadata_custom_attrs_from_index:
3534 * @meta: metadata context
3535 * @index: token representing the parent
3537 * Returns: the 1-based index into the CustomAttribute table of the first
3538 * attribute which belongs to the metadata object described by @index.
3539 * Returns 0 if no such attribute is found.
3542 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
3544 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
3551 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
3554 /* FIXME: Index translation */
3556 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3559 /* Find the first entry by searching backwards */
3560 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
3563 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3564 return loc.result + 1;
3568 * mono_metadata_declsec_from_index:
3569 * @meta: metadata context
3570 * @index: token representing the parent
3572 * Returns: the 0-based index into the DeclarativeSecurity table of the first
3573 * attribute which belongs to the metadata object described by @index.
3574 * Returns -1 if no such attribute is found.
3577 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
3579 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
3586 loc.col_idx = MONO_DECL_SECURITY_PARENT;
3589 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
3592 /* Find the first entry by searching backwards */
3593 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
3601 mono_backtrace (int limit)
3606 backtrace (array, limit);
3607 names = backtrace_symbols (array, limit);
3608 for (i =0; i < limit; ++i) {
3609 g_print ("\t%s\n", names [i]);
3616 /*#define __alignof__(a) sizeof(a)*/
3617 #define __alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
3622 * @t: the type to return the size of
3624 * Returns: the number of bytes required to hold an instance of this
3628 mono_type_size (MonoType *t, int *align)
3635 *align = __alignof__(gpointer);
3636 return sizeof (gpointer);
3640 case MONO_TYPE_VOID:
3643 case MONO_TYPE_BOOLEAN:
3644 *align = __alignof__(gint8);
3648 *align = __alignof__(gint8);
3650 case MONO_TYPE_CHAR:
3653 *align = __alignof__(gint16);
3657 *align = __alignof__(gint32);
3660 *align = __alignof__(float);
3664 *align = __alignof__(gint64);
3667 *align = __alignof__(double);
3671 *align = __alignof__(gpointer);
3672 return sizeof (gpointer);
3673 case MONO_TYPE_STRING:
3674 *align = __alignof__(gpointer);
3675 return sizeof (gpointer);
3676 case MONO_TYPE_OBJECT:
3677 *align = __alignof__(gpointer);
3678 return sizeof (gpointer);
3679 case MONO_TYPE_VALUETYPE: {
3680 if (t->data.klass->enumtype)
3681 return mono_type_size (t->data.klass->enum_basetype, align);
3683 return mono_class_value_size (t->data.klass, (guint32*)align);
3685 case MONO_TYPE_CLASS:
3686 case MONO_TYPE_SZARRAY:
3688 case MONO_TYPE_FNPTR:
3689 case MONO_TYPE_ARRAY:
3690 *align = __alignof__(gpointer);
3691 return sizeof (gpointer);
3692 case MONO_TYPE_TYPEDBYREF:
3693 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
3694 case MONO_TYPE_GENERICINST: {
3695 MonoGenericClass *gclass = t->data.generic_class;
3696 MonoClass *container_class = gclass->container_class;
3698 // g_assert (!gclass->inst->is_open);
3700 if (container_class->valuetype) {
3701 if (container_class->enumtype)
3702 return mono_type_size (container_class->enum_basetype, align);
3704 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3706 *align = __alignof__(gpointer);
3707 return sizeof (gpointer);
3711 case MONO_TYPE_MVAR:
3712 /* FIXME: Martin, this is wrong. */
3713 *align = __alignof__(gpointer);
3714 return sizeof (gpointer);
3716 g_error ("mono_type_size: type 0x%02x unknown", t->type);
3722 * mono_type_stack_size:
3723 * @t: the type to return the size it uses on the stack
3725 * Returns: the number of bytes required to hold an instance of this
3726 * type on the runtime stack
3729 mono_type_stack_size (MonoType *t, int *align)
3731 return mono_type_stack_size_internal (t, align, FALSE);
3735 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
3739 g_assert (t != NULL);
3745 *align = __alignof__(gpointer);
3746 return sizeof (gpointer);
3750 case MONO_TYPE_BOOLEAN:
3751 case MONO_TYPE_CHAR:
3760 case MONO_TYPE_STRING:
3761 case MONO_TYPE_OBJECT:
3762 case MONO_TYPE_CLASS:
3763 case MONO_TYPE_SZARRAY:
3765 case MONO_TYPE_FNPTR:
3766 case MONO_TYPE_ARRAY:
3767 *align = __alignof__(gpointer);
3768 return sizeof (gpointer);
3769 case MONO_TYPE_TYPEDBYREF:
3770 *align = __alignof__(gpointer);
3771 return sizeof (gpointer) * 3;
3773 *align = __alignof__(float);
3774 return sizeof (float);
3777 *align = __alignof__(gint64);
3778 return sizeof (gint64);
3780 *align = __alignof__(double);
3781 return sizeof (double);
3782 case MONO_TYPE_VALUETYPE: {
3785 if (t->data.klass->enumtype)
3786 return mono_type_stack_size_internal (t->data.klass->enum_basetype, align, allow_open);
3788 size = mono_class_value_size (t->data.klass, (guint32*)align);
3790 *align = *align + __alignof__(gpointer) - 1;
3791 *align &= ~(__alignof__(gpointer) - 1);
3793 size += sizeof (gpointer) - 1;
3794 size &= ~(sizeof (gpointer) - 1);
3799 case MONO_TYPE_GENERICINST: {
3800 MonoGenericClass *gclass = t->data.generic_class;
3801 MonoClass *container_class = gclass->container_class;
3804 g_assert (!gclass->context.class_inst->is_open);
3806 if (container_class->valuetype) {
3807 if (container_class->enumtype)
3808 return mono_type_stack_size_internal (container_class->enum_basetype, align, allow_open);
3810 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3812 *align = *align + __alignof__(gpointer) - 1;
3813 *align &= ~(__alignof__(gpointer) - 1);
3815 size += sizeof (gpointer) - 1;
3816 size &= ~(sizeof (gpointer) - 1);
3821 *align = __alignof__(gpointer);
3822 return sizeof (gpointer);
3826 g_error ("type 0x%02x unknown", t->type);
3832 mono_type_generic_inst_is_valuetype (MonoType *type)
3834 g_assert (type->type == MONO_TYPE_GENERICINST);
3835 return type->data.generic_class->container_class->valuetype;
3839 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
3841 return gclass->container_class->valuetype;
3845 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
3847 MonoGenericInst *i1 = g1->context.class_inst;
3848 MonoGenericInst *i2 = g2->context.class_inst;
3850 if (g1->is_dynamic != g2->is_dynamic)
3852 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
3854 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
3856 return g1->is_tb_open == g2->is_tb_open;
3860 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
3862 MonoGenericInst *i1 = g1->context.class_inst;
3863 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
3865 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
3867 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
3869 return !g1->is_tb_open;
3873 mono_metadata_generic_context_hash (const MonoGenericContext *context)
3875 /* FIXME: check if this seed is good enough */
3876 guint hash = 0xc01dfee7;
3877 if (context->class_inst)
3878 hash = ((hash << 5) - hash) ^ context->class_inst->id;
3879 if (context->method_inst)
3880 hash = ((hash << 5) - hash) ^ context->method_inst->id;
3885 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
3887 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
3891 * mono_metadata_type_hash:
3894 * Computes an hash value for @t1 to be used in GHashTable.
3897 mono_metadata_type_hash (MonoType *t1)
3899 guint hash = t1->type;
3901 hash |= t1->byref << 6; /* do not collide with t1->type values */
3903 case MONO_TYPE_VALUETYPE:
3904 case MONO_TYPE_CLASS:
3905 case MONO_TYPE_SZARRAY:
3906 /* check if the distribution is good enough */
3907 return ((hash << 5) - hash) ^ g_str_hash (t1->data.klass->name);
3909 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
3910 case MONO_TYPE_ARRAY:
3911 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
3912 case MONO_TYPE_GENERICINST:
3913 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
3919 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
3923 if (p1->num != p2->num)
3926 if (p1->owner == p2->owner)
3930 * If `signature_only' is true, we're comparing two (method) signatures.
3931 * In this case, the owner of two type parameters doesn't need to match.
3934 return signature_only;
3938 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
3942 if (c1->generic_class && c2->generic_class)
3943 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
3944 if (c1->generic_class && c2->generic_container)
3945 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
3946 if (c1->generic_container && c2->generic_class)
3947 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
3948 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
3949 return mono_metadata_generic_param_equal (
3950 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
3951 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
3952 return mono_metadata_generic_param_equal (
3953 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
3954 if (signature_only &&
3955 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
3956 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
3961 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
3963 gpointer iter1 = 0, iter2 = 0;
3967 if (s1->call_convention != s2->call_convention)
3969 if (s1->sentinelpos != s2->sentinelpos)
3971 if (s1->hasthis != s2->hasthis)
3973 if (s1->explicit_this != s2->explicit_this)
3975 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
3977 if (s1->param_count != s2->param_count)
3981 MonoType *t1 = mono_signature_get_params (s1, &iter1);
3982 MonoType *t2 = mono_signature_get_params (s2, &iter2);
3984 if (t1 == NULL || t2 == NULL)
3986 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
3992 * mono_metadata_type_equal:
3996 * Determine if @t1 and @t2 represent the same type.
3997 * Returns: #TRUE if @t1 and @t2 are equal.
4000 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4002 if (t1->type != t2->type || t1->byref != t2->byref)
4006 case MONO_TYPE_VOID:
4007 case MONO_TYPE_BOOLEAN:
4008 case MONO_TYPE_CHAR:
4019 case MONO_TYPE_STRING:
4022 case MONO_TYPE_OBJECT:
4023 case MONO_TYPE_TYPEDBYREF:
4025 case MONO_TYPE_VALUETYPE:
4026 case MONO_TYPE_CLASS:
4027 case MONO_TYPE_SZARRAY:
4028 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4030 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4031 case MONO_TYPE_ARRAY:
4032 if (t1->data.array->rank != t2->data.array->rank)
4034 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4035 case MONO_TYPE_GENERICINST:
4036 return _mono_metadata_generic_class_equal (
4037 t1->data.generic_class, t2->data.generic_class, signature_only);
4039 return mono_metadata_generic_param_equal (
4040 t1->data.generic_param, t2->data.generic_param, signature_only);
4041 case MONO_TYPE_MVAR:
4042 return mono_metadata_generic_param_equal (
4043 t1->data.generic_param, t2->data.generic_param, signature_only);
4044 case MONO_TYPE_FNPTR:
4045 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4047 g_error ("implement type compare for %0x!", t1->type);
4055 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
4057 return do_mono_metadata_type_equal (t1, t2, FALSE);
4061 * mono_metadata_type_equal_full:
4064 * @signature_only: if signature only comparison should be made
4066 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
4067 * behaves the same way as mono_metadata_type_equal.
4068 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
4069 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
4072 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
4074 return do_mono_metadata_type_equal (t1, t2, signature_only);
4078 * mono_metadata_signature_equal:
4079 * @sig1: a signature
4080 * @sig2: another signature
4082 * Determine if @sig1 and @sig2 represent the same signature, with the
4083 * same number of arguments and the same types.
4084 * Returns: #TRUE if @sig1 and @sig2 are equal.
4087 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4091 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4094 if (sig1->generic_param_count != sig2->generic_param_count)
4098 * We're just comparing the signatures of two methods here:
4100 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4101 * U and V are equal here.
4103 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4106 for (i = 0; i < sig1->param_count; i++) {
4107 MonoType *p1 = sig1->params[i];
4108 MonoType *p2 = sig2->params[i];
4110 /* if (p1->attrs != p2->attrs)
4113 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
4117 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4123 * mono_metadata_type_dup:
4124 * @mp: mempool to use
4125 * @original: type to duplicate
4127 * Returns: copy of type allocated from mempool (or from the heap, if @mp is null).
4130 mono_metadata_type_dup (MonoMemPool *mp, const MonoType *o)
4133 int sizeof_o = sizeof (MonoType);
4135 sizeof_o += (o->num_mods - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod);
4137 mono_loader_lock ();
4138 r = mp ? mono_mempool_alloc0 (mp, sizeof_o) : g_malloc (sizeof_o);
4139 mono_loader_unlock ();
4141 memcpy (r, o, sizeof_o);
4143 if (o->type == MONO_TYPE_PTR) {
4144 r->data.type = mono_metadata_type_dup (mp, o->data.type);
4145 } else if (o->type == MONO_TYPE_ARRAY) {
4146 r->data.array = mono_dup_array_type (mp, o->data.array);
4147 } else if (o->type == MONO_TYPE_FNPTR) {
4148 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
4149 r->data.method = mono_metadata_signature_deep_dup (mp, o->data.method);
4155 mono_signature_hash (MonoMethodSignature *sig)
4157 guint i, res = sig->ret->type;
4159 for (i = 0; i < sig->param_count; i++)
4160 res = (res << 5) - res + mono_type_hash (sig->params[i]);
4166 * mono_metadata_encode_value:
4167 * @value: value to encode
4168 * @buf: buffer where to write the compressed representation
4169 * @endbuf: pointer updated to point at the end of the encoded output
4171 * Encodes the value @value in the compressed representation used
4172 * in metadata and stores the result in @buf. @buf needs to be big
4173 * enough to hold the data (4 bytes).
4176 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
4182 else if (value < 0x4000) {
4183 p [0] = 0x80 | (value >> 8);
4184 p [1] = value & 0xff;
4187 p [0] = (value >> 24) | 0xc0;
4188 p [1] = (value >> 16) & 0xff;
4189 p [2] = (value >> 8) & 0xff;
4190 p [3] = value & 0xff;
4198 * mono_metadata_field_info:
4199 * @meta: the Image the field is defined in
4200 * @index: the index in the field table representing the field
4201 * @offset: a pointer to an integer where to store the offset that
4202 * may have been specified for the field in a FieldLayout table
4203 * @rva: a pointer to the RVA of the field data in the image that
4204 * may have been defined in a FieldRVA table
4205 * @marshal_spec: a pointer to the marshal spec that may have been
4206 * defined for the field in a FieldMarshal table.
4208 * Gather info for field @index that may have been defined in the FieldLayout,
4209 * FieldRVA and FieldMarshal tables.
4210 * Either of offset, rva and marshal_spec can be NULL if you're not interested
4214 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4215 MonoMarshalSpec **marshal_spec)
4217 return mono_metadata_field_info_with_mempool (NULL, meta, index, offset, rva, marshal_spec);
4221 mono_metadata_field_info_with_mempool (MonoMemPool *mempool, MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4222 MonoMarshalSpec **marshal_spec)
4224 MonoTableInfo *tdef;
4227 loc.idx = index + 1;
4228 if (meta->uncompressed_metadata)
4229 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4232 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
4234 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
4237 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4238 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
4240 *offset = (guint32)-1;
4244 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
4246 loc.col_idx = MONO_FIELD_RVA_FIELD;
4249 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4251 * LAMESPEC: There is no signature, no nothing, just the raw data.
4253 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
4261 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
4262 *marshal_spec = mono_metadata_parse_marshal_spec_with_mempool (mempool, p);
4269 * mono_metadata_get_constant_index:
4270 * @meta: the Image the field is defined in
4271 * @index: the token that may have a row defined in the constants table
4272 * @hint: possible position for the row
4274 * @token must be a FieldDef, ParamDef or PropertyDef token.
4276 * Returns: the index into the Constants table or 0 if not found.
4279 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4281 MonoTableInfo *tdef;
4283 guint32 index = mono_metadata_token_index (token);
4285 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4286 index <<= MONO_HASCONSTANT_BITS;
4287 switch (mono_metadata_token_table (token)) {
4288 case MONO_TABLE_FIELD:
4289 index |= MONO_HASCONSTANT_FIEDDEF;
4291 case MONO_TABLE_PARAM:
4292 index |= MONO_HASCONSTANT_PARAM;
4294 case MONO_TABLE_PROPERTY:
4295 index |= MONO_HASCONSTANT_PROPERTY;
4298 g_warning ("Not a valid token for the constant table: 0x%08x", token);
4302 loc.col_idx = MONO_CONSTANT_PARENT;
4305 /* FIXME: Index translation */
4307 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
4310 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4311 return loc.result + 1;
4317 * mono_metadata_events_from_typedef:
4318 * @meta: metadata context
4319 * @index: 0-based index (in the TypeDef table) describing a type
4321 * Returns: the 0-based index in the Event table for the events in the
4322 * type. The last event that belongs to the type (plus 1) is stored
4323 * in the @end_idx pointer.
4326 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4330 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
4338 loc.col_idx = MONO_EVENT_MAP_PARENT;
4339 loc.idx = index + 1;
4341 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4344 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
4345 if (loc.result + 1 < tdef->rows) {
4346 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
4348 end = meta->tables [MONO_TABLE_EVENT].rows;
4356 * mono_metadata_methods_from_event:
4357 * @meta: metadata context
4358 * @index: 0-based index (in the Event table) describing a event
4360 * Returns: the 0-based index in the MethodDef table for the methods in the
4361 * event. The last method that belongs to the event (plus 1) is stored
4362 * in the @end_idx pointer.
4365 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
4369 guint32 cols [MONO_METHOD_SEMA_SIZE];
4370 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4376 if (meta->uncompressed_metadata)
4377 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
4380 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4381 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
4383 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4388 * We may end up in the middle of the rows...
4391 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4397 while (end < msemt->rows) {
4398 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4399 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4408 * mono_metadata_properties_from_typedef:
4409 * @meta: metadata context
4410 * @index: 0-based index (in the TypeDef table) describing a type
4412 * Returns: the 0-based index in the Property table for the properties in the
4413 * type. The last property that belongs to the type (plus 1) is stored
4414 * in the @end_idx pointer.
4417 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4421 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
4429 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
4430 loc.idx = index + 1;
4432 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4435 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
4436 if (loc.result + 1 < tdef->rows) {
4437 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
4439 end = meta->tables [MONO_TABLE_PROPERTY].rows;
4447 * mono_metadata_methods_from_property:
4448 * @meta: metadata context
4449 * @index: 0-based index (in the PropertyDef table) describing a property
4451 * Returns: the 0-based index in the MethodDef table for the methods in the
4452 * property. The last method that belongs to the property (plus 1) is stored
4453 * in the @end_idx pointer.
4456 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
4460 guint32 cols [MONO_METHOD_SEMA_SIZE];
4461 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4467 if (meta->uncompressed_metadata)
4468 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
4471 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4472 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
4474 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4479 * We may end up in the middle of the rows...
4482 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4488 while (end < msemt->rows) {
4489 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4490 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4499 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
4502 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
4507 /* No index translation seems to be needed */
4510 loc.col_idx = MONO_IMPLMAP_MEMBER;
4511 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
4513 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4516 return loc.result + 1;
4520 * @image: context where the image is created
4521 * @type_spec: typespec token
4523 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
4527 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
4529 guint32 idx = mono_metadata_token_index (type_spec);
4531 guint32 cols [MONO_TYPESPEC_SIZE];
4534 MonoType *type, *type2;
4536 mono_loader_lock ();
4538 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4540 mono_loader_unlock ();
4544 t = &image->tables [MONO_TABLE_TYPESPEC];
4546 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
4547 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
4548 len = mono_metadata_decode_value (ptr, &ptr);
4550 type = mono_mempool_alloc0 (image->mempool, sizeof (MonoType));
4552 if (*ptr == MONO_TYPE_BYREF) {
4557 if (!do_mono_metadata_parse_type (type, image, NULL, ptr, &ptr)) {
4558 mono_loader_unlock ();
4562 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4565 mono_loader_unlock ();
4569 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type);
4571 mono_loader_unlock ();
4578 mono_mempool_strndup (MonoMemPool *mp, const char *data, guint len)
4582 return g_strndup (data, len);
4583 res = mono_mempool_alloc (mp, len + 1);
4584 memcpy (res, data, len);
4590 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
4592 return mono_metadata_parse_marshal_spec_with_mempool (NULL, ptr);
4596 mono_metadata_parse_marshal_spec_with_mempool (MonoMemPool *mempool, const char *ptr)
4598 MonoMarshalSpec *res;
4600 const char *start = ptr;
4602 /* fixme: this is incomplete, but I cant find more infos in the specs */
4605 res = mono_mempool_alloc0 (mempool, sizeof (MonoMarshalSpec));
4607 res = g_new0 (MonoMarshalSpec, 1);
4609 len = mono_metadata_decode_value (ptr, &ptr);
4610 res->native = *ptr++;
4612 if (res->native == MONO_NATIVE_LPARRAY) {
4613 res->data.array_data.param_num = -1;
4614 res->data.array_data.num_elem = -1;
4615 res->data.array_data.elem_mult = -1;
4617 if (ptr - start <= len)
4618 res->data.array_data.elem_type = *ptr++;
4619 if (ptr - start <= len)
4620 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
4621 if (ptr - start <= len)
4622 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4623 if (ptr - start <= len) {
4625 * LAMESPEC: Older spec versions say this parameter comes before
4626 * num_elem. Never spec versions don't talk about elem_mult at
4627 * all, but csc still emits it, and it is used to distinguish
4628 * between param_num being 0, and param_num being omitted.
4629 * So if (param_num == 0) && (num_elem > 0), then
4630 * elem_mult == 0 -> the array size is num_elem
4631 * elem_mult == 1 -> the array size is @param_num + num_elem
4633 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
4637 if (res->native == MONO_NATIVE_BYVALTSTR) {
4638 if (ptr - start <= len)
4639 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4642 if (res->native == MONO_NATIVE_BYVALARRAY) {
4643 if (ptr - start <= len)
4644 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4647 if (res->native == MONO_NATIVE_CUSTOM) {
4648 /* skip unused type guid */
4649 len = mono_metadata_decode_value (ptr, &ptr);
4651 /* skip unused native type name */
4652 len = mono_metadata_decode_value (ptr, &ptr);
4654 /* read custom marshaler type name */
4655 len = mono_metadata_decode_value (ptr, &ptr);
4656 res->data.custom_data.custom_name = mono_mempool_strndup (mempool, ptr, len);
4658 /* read cookie string */
4659 len = mono_metadata_decode_value (ptr, &ptr);
4660 res->data.custom_data.cookie = mono_mempool_strndup (mempool, ptr, len);
4663 if (res->native == MONO_NATIVE_SAFEARRAY) {
4664 res->data.safearray_data.elem_type = 0;
4665 res->data.safearray_data.num_elem = 0;
4666 if (ptr - start <= len)
4667 res->data.safearray_data.elem_type = *ptr++;
4668 if (ptr - start <= len)
4669 res->data.safearray_data.num_elem = *ptr++;
4675 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
4677 if (spec->native == MONO_NATIVE_CUSTOM) {
4678 g_free (spec->data.custom_data.custom_name);
4679 g_free (spec->data.custom_data.cookie);
4685 * mono_type_to_unmanaged:
4687 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
4688 * describing the underlying native reprensetation of the type.
4690 * In addition the value pointed by
4691 * "conv" will contain the kind of marshalling required for this
4692 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
4695 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
4696 gboolean unicode, MonoMarshalConv *conv)
4698 MonoMarshalConv dummy_conv;
4704 *conv = MONO_MARSHAL_CONV_NONE;
4707 return MONO_NATIVE_UINT;
4711 case MONO_TYPE_BOOLEAN:
4713 switch (mspec->native) {
4714 case MONO_NATIVE_VARIANTBOOL:
4715 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
4716 return MONO_NATIVE_VARIANTBOOL;
4717 case MONO_NATIVE_BOOLEAN:
4718 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4719 return MONO_NATIVE_BOOLEAN;
4720 case MONO_NATIVE_I1:
4721 case MONO_NATIVE_U1:
4722 return mspec->native;
4724 g_error ("cant marshal bool to native type %02x", mspec->native);
4727 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4728 return MONO_NATIVE_BOOLEAN;
4729 case MONO_TYPE_CHAR: return MONO_NATIVE_U2;
4730 case MONO_TYPE_I1: return MONO_NATIVE_I1;
4731 case MONO_TYPE_U1: return MONO_NATIVE_U1;
4732 case MONO_TYPE_I2: return MONO_NATIVE_I2;
4733 case MONO_TYPE_U2: return MONO_NATIVE_U2;
4734 case MONO_TYPE_I4: return MONO_NATIVE_I4;
4735 case MONO_TYPE_U4: return MONO_NATIVE_U4;
4736 case MONO_TYPE_I8: return MONO_NATIVE_I8;
4737 case MONO_TYPE_U8: return MONO_NATIVE_U8;
4738 case MONO_TYPE_R4: return MONO_NATIVE_R4;
4739 case MONO_TYPE_R8: return MONO_NATIVE_R8;
4740 case MONO_TYPE_STRING:
4742 switch (mspec->native) {
4743 case MONO_NATIVE_BSTR:
4744 *conv = MONO_MARSHAL_CONV_STR_BSTR;
4745 return MONO_NATIVE_BSTR;
4746 case MONO_NATIVE_LPSTR:
4747 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4748 return MONO_NATIVE_LPSTR;
4749 case MONO_NATIVE_LPWSTR:
4750 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4751 return MONO_NATIVE_LPWSTR;
4752 case MONO_NATIVE_LPTSTR:
4753 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
4754 return MONO_NATIVE_LPTSTR;
4755 case MONO_NATIVE_ANSIBSTR:
4756 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
4757 return MONO_NATIVE_ANSIBSTR;
4758 case MONO_NATIVE_TBSTR:
4759 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
4760 return MONO_NATIVE_TBSTR;
4761 case MONO_NATIVE_BYVALTSTR:
4763 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
4765 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
4766 return MONO_NATIVE_BYVALTSTR;
4768 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);
4772 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4773 return MONO_NATIVE_LPWSTR;
4776 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4777 return MONO_NATIVE_LPSTR;
4779 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
4780 case MONO_TYPE_VALUETYPE: /*FIXME*/
4781 if (type->data.klass->enumtype) {
4782 t = type->data.klass->enum_basetype->type;
4785 if (type->data.klass == mono_defaults.handleref_class){
4786 *conv = MONO_MARSHAL_CONV_HANDLEREF;
4787 return MONO_NATIVE_INT;
4789 return MONO_NATIVE_STRUCT;
4790 case MONO_TYPE_SZARRAY:
4791 case MONO_TYPE_ARRAY:
4793 switch (mspec->native) {
4794 case MONO_NATIVE_BYVALARRAY:
4795 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
4796 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
4798 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
4799 return MONO_NATIVE_BYVALARRAY;
4800 case MONO_NATIVE_SAFEARRAY:
4801 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
4802 return MONO_NATIVE_SAFEARRAY;
4803 case MONO_NATIVE_LPARRAY:
4804 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4805 return MONO_NATIVE_LPARRAY;
4807 g_error ("cant marshal array as native type %02x", mspec->native);
4811 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4812 return MONO_NATIVE_LPARRAY;
4813 case MONO_TYPE_I: return MONO_NATIVE_INT;
4814 case MONO_TYPE_U: return MONO_NATIVE_UINT;
4815 case MONO_TYPE_CLASS:
4816 case MONO_TYPE_OBJECT: {
4817 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
4819 switch (mspec->native) {
4820 case MONO_NATIVE_STRUCT:
4821 return MONO_NATIVE_STRUCT;
4822 case MONO_NATIVE_CUSTOM:
4823 return MONO_NATIVE_CUSTOM;
4824 case MONO_NATIVE_INTERFACE:
4825 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
4826 return MONO_NATIVE_INTERFACE;
4827 case MONO_NATIVE_IDISPATCH:
4828 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
4829 return MONO_NATIVE_IDISPATCH;
4830 case MONO_NATIVE_IUNKNOWN:
4831 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
4832 return MONO_NATIVE_IUNKNOWN;
4833 case MONO_NATIVE_FUNC:
4834 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4835 type->data.klass == mono_defaults.delegate_class ||
4836 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4837 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4838 return MONO_NATIVE_FUNC;
4842 g_error ("cant marshal object as native type %02x", mspec->native);
4845 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4846 type->data.klass == mono_defaults.delegate_class ||
4847 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4848 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4849 return MONO_NATIVE_FUNC;
4851 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
4852 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
4853 return MONO_NATIVE_INT;
4855 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
4856 return MONO_NATIVE_STRUCT;
4858 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
4859 case MONO_TYPE_GENERICINST:
4860 type = &type->data.generic_class->container_class->byval_arg;
4863 case MONO_TYPE_TYPEDBYREF:
4865 g_error ("type 0x%02x not handled in marshal", t);
4867 return MONO_NATIVE_MAX;
4871 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
4874 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
4880 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
4881 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
4883 /* FIXME: Index translation */
4885 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4888 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
4892 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
4894 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
4896 switch (tok & MONO_METHODDEFORREF_MASK) {
4897 case MONO_METHODDEFORREF_METHODDEF:
4898 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
4899 case MONO_METHODDEFORREF_METHODREF:
4900 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
4902 g_assert_not_reached ();
4907 * mono_class_get_overrides_full:
4909 * Return the method overrides belonging to class @type_token in @overrides, and
4910 * the number of overrides in @num_overrides.
4912 * Returns: TRUE on success, FALSE on failure.
4915 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
4916 MonoGenericContext *generic_context)
4919 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
4922 guint32 cols [MONO_METHODIMPL_SIZE];
4923 MonoMethod **result;
4934 loc.col_idx = MONO_METHODIMPL_CLASS;
4935 loc.idx = mono_metadata_token_index (type_token);
4937 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4943 * We may end up in the middle of the rows...
4946 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
4951 while (end < tdef->rows) {
4952 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
4958 result = g_new (MonoMethod*, num * 2);
4959 for (i = 0; i < num; ++i) {
4962 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
4963 method = method_from_method_def_or_ref (
4964 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
4967 result [i * 2] = method;
4968 method = method_from_method_def_or_ref (
4969 image, cols [MONO_METHODIMPL_BODY], generic_context);
4972 result [i * 2 + 1] = method;
4975 *overrides = result;
4977 *num_overrides = num;
4982 * mono_guid_to_string:
4984 * Converts a 16 byte Microsoft GUID to the standard string representation.
4987 mono_guid_to_string (const guint8 *guid)
4989 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
4990 guid[3], guid[2], guid[1], guid[0],
4994 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
4998 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
5000 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
5001 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
5002 guint32 i, token, found;
5003 MonoClass *klass, **res;
5004 GList *cons = NULL, *tmp;
5005 MonoGenericContext *context = &container->context;
5007 *constraints = NULL;
5009 for (i = 0; i < tdef->rows; ++i) {
5010 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
5011 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
5012 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
5013 klass = mono_class_get_full (image, token, context);
5014 cons = g_list_append (cons, klass);
5017 /* contiguous list finished */
5024 res = g_new0 (MonoClass*, found + 1);
5025 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
5026 res [i] = tmp->data;
5034 * mono_metadata_get_generic_param_row:
5037 * @token: TypeOrMethodDef token, owner for GenericParam
5038 * @owner: coded token, set on return
5040 * Returns: 1-based row-id in the GenericParam table whose
5041 * owner is @token. 0 if not found.
5044 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
5046 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5047 guint32 cols [MONO_GENERICPARAM_SIZE];
5054 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
5055 *owner = MONO_TYPEORMETHOD_TYPE;
5056 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5057 *owner = MONO_TYPEORMETHOD_METHOD;
5059 g_error ("wrong token %x to get_generic_param_row", token);
5062 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
5064 for (i = 0; i < tdef->rows; ++i) {
5065 mono_metadata_decode_row (tdef, i, cols, MONO_GENERICPARAM_SIZE);
5066 if (cols [MONO_GENERICPARAM_OWNER] == *owner)
5074 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
5077 return mono_metadata_get_generic_param_row (image, token, &owner);
5081 * mono_metadata_load_generic_param_constraints:
5083 * Load the generic parameter constraints for the newly created generic type or method
5084 * represented by @token and @container. The @container is the new container which has
5085 * been returned by a call to mono_metadata_load_generic_params() with this @token.
5088 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
5089 MonoGenericContainer *container)
5091 guint32 start_row, i, owner;
5092 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
5094 for (i = 0; i < container->type_argc; i++)
5095 get_constraints (image, start_row + i, &container->type_params [i].constraints, container);
5099 * mono_metadata_load_generic_params:
5101 * Load the type parameters from the type or method definition @token.
5103 * Use this method after parsing a type or method definition to figure out whether it's a generic
5104 * type / method. When parsing a method definition, @parent_container points to the generic container
5105 * of the current class, if any.
5107 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
5108 * creating the type.
5110 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
5112 * LOCKING: Assumes the loader lock is held.
5115 MonoGenericContainer *
5116 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
5118 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5119 guint32 cols [MONO_GENERICPARAM_SIZE];
5120 guint32 i, owner = 0, n;
5121 MonoGenericContainer *container;
5122 MonoGenericParam *params;
5123 MonoGenericContext *context;
5125 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
5127 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5130 container = mono_mempool_alloc0 (image->mempool, sizeof (MonoGenericContainer));
5133 params = g_realloc (params, sizeof (MonoGenericParam) * n);
5134 params [n - 1].owner = container;
5135 params [n - 1].pklass = NULL;
5136 params [n - 1].flags = cols [MONO_GENERICPARAM_FLAGS];
5137 params [n - 1].num = cols [MONO_GENERICPARAM_NUMBER];
5138 params [n - 1].name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
5139 params [n - 1].constraints = NULL;
5140 if (++i > tdef->rows)
5142 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5143 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
5145 container->type_argc = n;
5146 container->type_params = mono_mempool_alloc0 (image->mempool, sizeof (MonoGenericParam) * n);
5147 memcpy (container->type_params, params, sizeof (MonoGenericParam) * n);
5149 container->parent = parent_container;
5151 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5152 container->is_method = 1;
5154 g_assert (container->parent == NULL || container->is_method);
5156 context = &container->context;
5157 if (container->is_method) {
5158 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
5159 context->method_inst = mono_get_shared_generic_inst (container);
5161 context->class_inst = mono_get_shared_generic_inst (container);
5168 mono_get_shared_generic_inst (MonoGenericContainer *container)
5170 MonoType **type_argv;
5172 MonoGenericInst *nginst;
5175 type_argv = g_new0 (MonoType *, container->type_argc);
5176 helper = g_new0 (MonoType, container->type_argc);
5178 for (i = 0; i < container->type_argc; i++) {
5179 MonoType *t = &helper [i];
5181 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5182 t->data.generic_param = &container->type_params [i];
5187 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
5196 mono_type_is_byref (MonoType *type)
5202 mono_type_get_type (MonoType *type)
5207 /* For MONO_TYPE_FNPTR */
5208 MonoMethodSignature*
5209 mono_type_get_signature (MonoType *type)
5211 return type->data.method;
5214 /* For MONO_TYPE_CLASS, VALUETYPE */
5216 mono_type_get_class (MonoType *type)
5218 return type->data.klass;
5221 /* For MONO_TYPE_ARRAY */
5223 mono_type_get_array_type (MonoType *type)
5225 return type->data.array;
5228 /* For MONO_TYPE_PTR */
5230 mono_type_get_ptr_type (MonoType *type)
5232 return type->data.type;
5236 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
5238 /* FIXME: implement */
5243 mono_signature_get_return_type (MonoMethodSignature *sig)
5249 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
5255 /* start from the first */
5256 if (sig->param_count) {
5257 *iter = &sig->params [0];
5258 return sig->params [0];
5266 if (type < &sig->params [sig->param_count]) {
5274 mono_signature_get_param_count (MonoMethodSignature *sig)
5276 return sig->param_count;
5280 mono_signature_get_call_conv (MonoMethodSignature *sig)
5282 return sig->call_convention;
5286 mono_signature_vararg_start (MonoMethodSignature *sig)
5288 return sig->sentinelpos;
5292 mono_signature_is_instance (MonoMethodSignature *sig)
5294 return sig->hasthis;
5298 mono_signature_explicit_this (MonoMethodSignature *sig)
5300 return sig->explicit_this;
5303 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
5305 mono_aligned_addr_hash (gconstpointer ptr)
5307 return GPOINTER_TO_UINT (ptr) >> 3;