2 * metadata.c: Routines for accessing the metadata
5 * Miguel de Icaza (miguel@ximian.com)
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
21 #include "tabledefs.h"
22 #include "mono-endian.h"
24 #include "tokentype.h"
25 #include "metadata-internals.h"
26 #include "class-internals.h"
30 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
31 const char *ptr, const char **rptr);
33 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
34 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
35 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
36 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
37 gboolean signature_only);
38 static void free_generic_inst (MonoGenericInst *ginst);
39 static void free_generic_class (MonoGenericClass *ginst);
40 static void free_inflated_method (MonoMethodInflated *method);
41 static void mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva, MonoMarshalSpec **marshal_spec, gboolean alloc_from_image);
44 * This enumeration is used to describe the data types in the metadata
55 /* Index into Blob heap */
58 /* Index into String heap */
64 /* Pointer into a table */
67 /* HasConstant:Parent pointer (Param, Field or Property) */
70 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
73 /* CustomAttributeType encoded index */
76 /* HasDeclSecurity index: TypeDef Method or Assembly */
79 /* Implementation coded index: File, Export AssemblyRef */
82 /* HasFieldMarshal coded index: Field or Param table */
85 /* MemberForwardedIndex: Field or Method */
88 /* TypeDefOrRef coded index: typedef, typeref, typespec */
91 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
94 /* MethodDefOrRef coded index: Method or Member Ref table */
97 /* HasSemantic coded index: Event or Property */
100 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
104 const static unsigned char TableSchemas [] = {
105 #define ASSEMBLY_SCHEMA_OFFSET 0
106 MONO_MT_UINT32, /* "HashId" }, */
107 MONO_MT_UINT16, /* "Major" }, */
108 MONO_MT_UINT16, /* "Minor" }, */
109 MONO_MT_UINT16, /* "BuildNumber" }, */
110 MONO_MT_UINT16, /* "RevisionNumber" }, */
111 MONO_MT_UINT32, /* "Flags" }, */
112 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
113 MONO_MT_STRING_IDX, /* "Name" }, */
114 MONO_MT_STRING_IDX, /* "Culture" }, */
117 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
118 MONO_MT_UINT32, /* "OSPlatformID" }, */
119 MONO_MT_UINT32, /* "OSMajor" }, */
120 MONO_MT_UINT32, /* "OSMinor" }, */
123 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
124 MONO_MT_UINT32, /* "Processor" }, */
127 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
128 MONO_MT_UINT16, /* "Major" }, */
129 MONO_MT_UINT16, /* "Minor" }, */
130 MONO_MT_UINT16, /* "Build" }, */
131 MONO_MT_UINT16, /* "Revision" }, */
132 MONO_MT_UINT32, /* "Flags" }, */
133 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
134 MONO_MT_STRING_IDX, /* "Name" }, */
135 MONO_MT_STRING_IDX, /* "Culture" }, */
136 MONO_MT_BLOB_IDX, /* "HashValue" }, */
139 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
140 MONO_MT_UINT32, /* "OSPlatformID" }, */
141 MONO_MT_UINT32, /* "OSMajorVersion" }, */
142 MONO_MT_UINT32, /* "OSMinorVersion" }, */
143 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
146 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
147 MONO_MT_UINT32, /* "Processor" }, */
148 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
151 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
152 MONO_MT_UINT16, /* "PackingSize" }, */
153 MONO_MT_UINT32, /* "ClassSize" }, */
154 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
157 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
158 MONO_MT_UINT8, /* "Type" }, */
159 MONO_MT_UINT8, /* "PaddingZero" }, */
160 MONO_MT_CONST_IDX, /* "Parent" }, */
161 MONO_MT_BLOB_IDX, /* "Value" }, */
164 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
165 MONO_MT_HASCAT_IDX, /* "Parent" }, */
166 MONO_MT_CAT_IDX, /* "Type" }, */
167 MONO_MT_BLOB_IDX, /* "Value" }, */
170 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
171 MONO_MT_UINT16, /* "Action" }, */
172 MONO_MT_HASDEC_IDX, /* "Parent" }, */
173 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
176 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
177 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
178 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
181 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
182 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
183 MONO_MT_STRING_IDX, /* "Name" }, */
184 MONO_MT_TABLE_IDX, /* "EventType" }, TypeDef or TypeRef */
187 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
188 MONO_MT_TABLE_IDX, /* "Event" }, */
191 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
192 MONO_MT_UINT32, /* "Flags" }, */
193 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
194 MONO_MT_STRING_IDX, /* "TypeName" }, */
195 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
196 MONO_MT_IMPL_IDX, /* "Implementation" }, */
199 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
200 MONO_MT_UINT16, /* "Flags" }, */
201 MONO_MT_STRING_IDX, /* "Name" }, */
202 MONO_MT_BLOB_IDX, /* "Signature" }, */
205 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
206 MONO_MT_UINT32, /* "Offset" }, */
207 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
210 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
211 MONO_MT_HFM_IDX, /* "Parent" }, */
212 MONO_MT_BLOB_IDX, /* "NativeType" }, */
215 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
216 MONO_MT_UINT32, /* "RVA" }, */
217 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
220 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
221 MONO_MT_TABLE_IDX, /* "Field" }, */
224 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
225 MONO_MT_UINT32, /* "Flags" }, */
226 MONO_MT_STRING_IDX, /* "Name" }, */
227 MONO_MT_BLOB_IDX, /* "Value" }, */
230 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
231 MONO_MT_UINT16, /* "MappingFlag" }, */
232 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
233 MONO_MT_STRING_IDX, /* "ImportName" }, */
234 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
237 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
238 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
239 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
242 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
243 MONO_MT_UINT32, /* "Offset" }, */
244 MONO_MT_UINT32, /* "Flags" }, */
245 MONO_MT_STRING_IDX, /* "Name" }, */
246 MONO_MT_IMPL_IDX, /* "Implementation" }, */
249 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
250 MONO_MT_MRP_IDX, /* "Class" }, */
251 MONO_MT_STRING_IDX, /* "Name" }, */
252 MONO_MT_BLOB_IDX, /* "Signature" }, */
255 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
256 MONO_MT_UINT32, /* "RVA" }, */
257 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
258 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
259 MONO_MT_STRING_IDX, /* "Name" }, */
260 MONO_MT_BLOB_IDX, /* "Signature" }, */
261 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
264 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
265 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
266 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
267 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
270 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
271 MONO_MT_UINT16, /* "MethodSemantic" }, */
272 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
273 MONO_MT_HS_IDX, /* "Association" }, */
276 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
277 MONO_MT_TABLE_IDX, /* "Method" }, */
280 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
281 MONO_MT_UINT16, /* "Generation" }, */
282 MONO_MT_STRING_IDX, /* "Name" }, */
283 MONO_MT_GUID_IDX, /* "MVID" }, */
284 MONO_MT_GUID_IDX, /* "EncID" }, */
285 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
288 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
289 MONO_MT_STRING_IDX, /* "Name" }, */
292 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
293 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
294 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
297 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
298 MONO_MT_UINT16, /* "Flags" }, */
299 MONO_MT_UINT16, /* "Sequence" }, */
300 MONO_MT_STRING_IDX, /* "Name" }, */
303 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
304 MONO_MT_TABLE_IDX, /* "Param" }, */
307 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
308 MONO_MT_UINT16, /* "Flags" }, */
309 MONO_MT_STRING_IDX, /* "Name" }, */
310 MONO_MT_BLOB_IDX, /* "Type" }, */
313 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
314 MONO_MT_TABLE_IDX, /* "Property" }, */
317 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
318 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
319 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
322 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
323 MONO_MT_BLOB_IDX, /* "Signature" }, */
326 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
327 MONO_MT_UINT32, /* "Flags" }, */
328 MONO_MT_STRING_IDX, /* "Name" }, */
329 MONO_MT_STRING_IDX, /* "Namespace" }, */
330 MONO_MT_TDOR_IDX, /* "Extends" }, */
331 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
332 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
335 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
336 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
337 MONO_MT_STRING_IDX, /* "Name" }, */
338 MONO_MT_STRING_IDX, /* "Namespace" }, */
341 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
342 MONO_MT_BLOB_IDX, /* "Signature" }, */
345 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
346 MONO_MT_UINT16, /* "Number" }, */
347 MONO_MT_UINT16, /* "Flags" }, */
348 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
349 MONO_MT_STRING_IDX, /* "Name" }, */
352 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
353 MONO_MT_MDOR_IDX, /* "Method" }, */
354 MONO_MT_BLOB_IDX, /* "Signature" }, */
357 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
358 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
359 MONO_MT_TDOR_IDX, /* "Constraint" }, */
362 #define NULL_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
366 /* Must be the same order as MONO_TABLE_* */
367 const static unsigned char
368 table_description [] = {
369 MODULE_SCHEMA_OFFSET,
370 TYPEREF_SCHEMA_OFFSET,
371 TYPEDEF_SCHEMA_OFFSET,
372 FIELD_POINTER_SCHEMA_OFFSET,
374 METHOD_POINTER_SCHEMA_OFFSET,
375 METHOD_SCHEMA_OFFSET,
376 PARAM_POINTER_SCHEMA_OFFSET,
378 IFACEMAP_SCHEMA_OFFSET,
379 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
380 CONSTANT_SCHEMA_OFFSET,
381 CUSTOM_ATTR_SCHEMA_OFFSET,
382 FIELD_MARSHAL_SCHEMA_OFFSET,
383 DECL_SEC_SCHEMA_OFFSET,
384 CLASS_LAYOUT_SCHEMA_OFFSET,
385 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
386 STDALON_SIG_SCHEMA_OFFSET,
387 EVENTMAP_SCHEMA_OFFSET,
388 EVENT_POINTER_SCHEMA_OFFSET,
390 PROPERTY_MAP_SCHEMA_OFFSET,
391 PROPERTY_POINTER_SCHEMA_OFFSET,
392 PROPERTY_SCHEMA_OFFSET,
393 METHOD_SEMA_SCHEMA_OFFSET,
394 METHOD_IMPL_SCHEMA_OFFSET,
395 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
396 TYPESPEC_SCHEMA_OFFSET,
397 IMPLMAP_SCHEMA_OFFSET,
398 FIELD_RVA_SCHEMA_OFFSET,
401 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
402 ASSEMBLYPROC_SCHEMA_OFFSET,
403 ASSEMBLYOS_SCHEMA_OFFSET,
404 ASSEMBLYREF_SCHEMA_OFFSET,
405 ASSEMBLYREFPROC_SCHEMA_OFFSET,
406 ASSEMBLYREFOS_SCHEMA_OFFSET,
408 EXPORTED_TYPE_SCHEMA_OFFSET,
409 MANIFEST_SCHEMA_OFFSET,
410 NESTED_CLASS_SCHEMA_OFFSET,
411 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
412 METHOD_SPEC_SCHEMA_OFFSET,
413 GEN_CONSTRAINT_SCHEMA_OFFSET
416 #ifdef HAVE_ARRAY_ELEM_INIT
417 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
418 #define MSGSTRFIELD1(line) str##line
419 static const struct msgstr_t {
420 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
421 #include "mono/cil/tables.def"
424 #define TABLEDEF(a,b) b,
425 #include "mono/cil/tables.def"
428 static const gint16 tableidx [] = {
429 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
430 #include "mono/cil/tables.def"
435 #define TABLEDEF(a,b) b,
436 static const char* const
437 mono_tables_names [] = {
438 #include "mono/cil/tables.def"
444 /* Auxiliary structure used for caching inflated signatures */
446 MonoMethodSignature *sig;
447 MonoGenericContext context;
448 } MonoInflatedMethodSignature;
451 * mono_meta_table_name:
452 * @table: table index
454 * Returns the name of the given ECMA metadata logical format table
455 * as described in ECMA 335, Partition II, Section 22.
457 * Returns: the name for the @table index
460 mono_meta_table_name (int table)
462 if ((table < 0) || (table > MONO_TABLE_LAST))
465 #ifdef HAVE_ARRAY_ELEM_INIT
466 return (const char*)&tablestr + tableidx [table];
468 return mono_tables_names [table];
472 /* The guy who wrote the spec for this should not be allowed near a
475 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
476 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
477 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
478 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
479 inverse of this mapping.
482 #define rtsize(s,b) (((s) < (1 << (b)) ? 2 : 4))
483 #define idx_size(tableidx) (meta->tables [(tableidx)].rows < 65536 ? 2 : 4)
485 /* Reference: Partition II - 23.2.6 */
487 * mono_metadata_compute_size:
488 * @meta: metadata context
489 * @tableindex: metadata table number
490 * @result_bitfield: pointer to guint32 where to store additional info
492 * mono_metadata_compute_size() computes the lenght in bytes of a single
493 * row in a metadata table. The size of each column is encoded in the
494 * @result_bitfield return value along with the number of columns in the table.
495 * the resulting bitfield should be handed to the mono_metadata_table_size()
496 * and mono_metadata_table_count() macros.
497 * This is a Mono runtime internal only function.
500 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
502 guint32 bitfield = 0;
503 int size = 0, field_size = 0;
506 const unsigned char *description = TableSchemas + table_description [tableindex];
508 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
511 field_size = 4; break;
514 field_size = 2; break;
517 field_size = 1; break;
519 case MONO_MT_BLOB_IDX:
520 field_size = meta->idx_blob_wide ? 4 : 2; break;
522 case MONO_MT_STRING_IDX:
523 field_size = meta->idx_string_wide ? 4 : 2; break;
525 case MONO_MT_GUID_IDX:
526 field_size = meta->idx_guid_wide ? 4 : 2; break;
528 case MONO_MT_TABLE_IDX:
529 /* Uhm, a table index can point to other tables besides the current one
530 * so, it's not correct to use the rowcount of the current table to
531 * get the size for this column - lupus
533 switch (tableindex) {
534 case MONO_TABLE_ASSEMBLYREFOS:
536 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
537 case MONO_TABLE_ASSEMBLYPROCESSOR:
539 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
540 case MONO_TABLE_CLASSLAYOUT:
542 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
543 case MONO_TABLE_EVENTMAP:
544 g_assert (i == 0 || i == 1);
545 field_size = i ? idx_size (MONO_TABLE_EVENT):
546 idx_size(MONO_TABLE_TYPEDEF);
548 case MONO_TABLE_EVENT:
550 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows, meta->tables [MONO_TABLE_TYPEREF].rows);
551 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
552 /*This is a coded token for 3 tables, so takes 2 bits */
553 field_size = rtsize (n, 16 - MONO_TYPEDEFORREF_BITS);
555 case MONO_TABLE_EVENT_POINTER:
557 field_size = idx_size (MONO_TABLE_EVENT); break;
558 case MONO_TABLE_EXPORTEDTYPE:
560 /* the index is in another metadata file, so it must be 4 */
561 field_size = 4; break;
562 case MONO_TABLE_FIELDLAYOUT:
564 field_size = idx_size (MONO_TABLE_FIELD); break;
565 case MONO_TABLE_FIELDRVA:
567 field_size = idx_size (MONO_TABLE_FIELD); break;
568 case MONO_TABLE_FIELD_POINTER:
570 field_size = idx_size (MONO_TABLE_FIELD); break;
571 case MONO_TABLE_IMPLMAP:
573 field_size = idx_size (MONO_TABLE_MODULEREF); break;
574 case MONO_TABLE_INTERFACEIMPL:
576 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
577 case MONO_TABLE_METHOD:
579 field_size = idx_size (MONO_TABLE_PARAM); break;
580 case MONO_TABLE_METHODIMPL:
582 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
583 case MONO_TABLE_METHODSEMANTICS:
585 field_size = idx_size (MONO_TABLE_METHOD); break;
586 case MONO_TABLE_METHOD_POINTER:
588 field_size = idx_size (MONO_TABLE_METHOD); break;
589 case MONO_TABLE_NESTEDCLASS:
590 g_assert (i == 0 || i == 1);
591 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
592 case MONO_TABLE_PARAM_POINTER:
594 field_size = idx_size (MONO_TABLE_PARAM); break;
595 case MONO_TABLE_PROPERTYMAP:
596 g_assert (i == 0 || i == 1);
597 field_size = i ? idx_size (MONO_TABLE_PROPERTY):
598 idx_size(MONO_TABLE_TYPEDEF);
600 case MONO_TABLE_PROPERTY_POINTER:
602 field_size = idx_size (MONO_TABLE_PROPERTY); break;
603 case MONO_TABLE_TYPEDEF:
604 g_assert (i == 4 || i == 5);
605 field_size = i == 4 ? idx_size (MONO_TABLE_FIELD):
606 idx_size(MONO_TABLE_METHOD);
608 case MONO_TABLE_GENERICPARAM:
609 g_assert (i == 2 || i == 4 || i == 5);
611 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
612 /*This is a coded token for 2 tables, so takes 1 bit */
613 field_size = rtsize (n, 16 - MONO_TYPEORMETHOD_BITS);
615 field_size = idx_size (MONO_TABLE_TYPEDEF);
617 field_size = idx_size (MONO_TABLE_TYPEDEF);
620 case MONO_TABLE_GENERICPARAMCONSTRAINT:
622 field_size = idx_size (MONO_TABLE_GENERICPARAM);
626 g_assert_not_reached ();
631 * HasConstant: ParamDef, FieldDef, Property
633 case MONO_MT_CONST_IDX:
634 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
635 meta->tables [MONO_TABLE_FIELD].rows);
636 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
638 /* 2 bits to encode tag */
639 field_size = rtsize (n, 16-2);
643 * HasCustomAttribute: points to any table but
646 case MONO_MT_HASCAT_IDX:
648 * We believe that since the signature and
649 * permission are indexing the Blob heap,
650 * we should consider the blob size first
652 /* I'm not a believer - lupus
653 if (meta->idx_blob_wide){
658 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
659 meta->tables [MONO_TABLE_FIELD].rows);
660 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
661 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
662 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
663 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
664 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
665 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
666 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
667 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
668 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
669 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
670 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
671 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
672 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
673 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
674 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
675 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
676 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
678 /* 5 bits to encode */
679 field_size = rtsize (n, 16-5);
683 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
684 * MemberRef and String.
686 case MONO_MT_CAT_IDX:
687 /* String is a heap, if it is wide, we know the size */
689 if (meta->idx_string_wide){
694 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
695 meta->tables [MONO_TABLE_TYPEDEF].rows);
696 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
697 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
699 /* 3 bits to encode */
700 field_size = rtsize (n, 16-3);
704 * HasDeclSecurity: Typedef, MethodDef, Assembly
706 case MONO_MT_HASDEC_IDX:
707 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
708 meta->tables [MONO_TABLE_METHOD].rows);
709 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
711 /* 2 bits to encode */
712 field_size = rtsize (n, 16-2);
716 * Implementation: File, AssemblyRef, ExportedType
718 case MONO_MT_IMPL_IDX:
719 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
720 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
721 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
723 /* 2 bits to encode tag */
724 field_size = rtsize (n, 16-2);
728 * HasFieldMarshall: FieldDef, ParamDef
730 case MONO_MT_HFM_IDX:
731 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
732 meta->tables [MONO_TABLE_PARAM].rows);
734 /* 1 bit used to encode tag */
735 field_size = rtsize (n, 16-1);
739 * MemberForwarded: FieldDef, MethodDef
742 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
743 meta->tables [MONO_TABLE_METHOD].rows);
745 /* 1 bit used to encode tag */
746 field_size = rtsize (n, 16-1);
750 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
752 * It is TypeDef, _TypeRef_, TypeSpec, instead.
754 case MONO_MT_TDOR_IDX:
755 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
756 meta->tables [MONO_TABLE_TYPEREF].rows);
757 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
759 /* 2 bits to encode */
760 field_size = rtsize (n, 16-2);
764 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
766 case MONO_MT_MRP_IDX:
767 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
768 meta->tables [MONO_TABLE_TYPEREF].rows);
769 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
770 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
771 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
772 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
774 /* 3 bits to encode */
775 field_size = rtsize (n, 16 - 3);
779 * MethodDefOrRef: MethodDef, MemberRef
781 case MONO_MT_MDOR_IDX:
782 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
783 meta->tables [MONO_TABLE_MEMBERREF].rows);
785 /* 1 bit used to encode tag */
786 field_size = rtsize (n, 16-1);
790 * HasSemantics: Property, Event
793 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
794 meta->tables [MONO_TABLE_EVENT].rows);
796 /* 1 bit used to encode tag */
797 field_size = rtsize (n, 16-1);
801 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
804 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
805 meta->tables [MONO_TABLE_MODULEREF].rows);
806 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
807 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
809 /* 2 bits used to encode tag (ECMA spec claims 3) */
810 field_size = rtsize (n, 16 - 2);
815 * encode field size as follows (we just need to
822 bitfield |= (field_size-1) << shift;
825 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
828 *result_bitfield = (i << 24) | bitfield;
833 * mono_metadata_compute_table_bases:
834 * @meta: metadata context to compute table values
836 * Computes the table bases for the metadata structure.
837 * This is an internal function used by the image loader code.
840 mono_metadata_compute_table_bases (MonoImage *meta)
843 const char *base = meta->tables_base;
845 for (i = 0; i < MONO_TABLE_NUM; i++) {
846 MonoTableInfo *table = &meta->tables [i];
847 if (table->rows == 0)
850 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
852 base += table->rows * table->row_size;
857 * mono_metadata_locate:
858 * @meta: metadata context
859 * @table: table code.
860 * @idx: index of element to retrieve from @table.
862 * Returns: a pointer to the @idx element in the metadata table
863 * whose code is @table.
866 mono_metadata_locate (MonoImage *meta, int table, int idx)
868 /* idx == 0 refers always to NULL */
869 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, "");
871 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
875 * mono_metadata_locate_token:
876 * @meta: metadata context
877 * @token: metadata token
879 * Returns: a pointer to the data in the metadata represented by the
883 mono_metadata_locate_token (MonoImage *meta, guint32 token)
885 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
889 * mono_metadata_string_heap:
890 * @meta: metadata context
891 * @index: index into the string heap.
893 * Returns: an in-memory pointer to the @index in the string heap.
896 mono_metadata_string_heap (MonoImage *meta, guint32 index)
898 g_return_val_if_fail (index < meta->heap_strings.size, "");
899 return meta->heap_strings.data + index;
903 * mono_metadata_user_string:
904 * @meta: metadata context
905 * @index: index into the user string heap.
907 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
910 mono_metadata_user_string (MonoImage *meta, guint32 index)
912 g_return_val_if_fail (index < meta->heap_us.size, "");
913 return meta->heap_us.data + index;
917 * mono_metadata_blob_heap:
918 * @meta: metadata context
919 * @index: index into the blob.
921 * Returns: an in-memory pointer to the @index in the Blob heap.
924 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
926 g_return_val_if_fail (index < meta->heap_blob.size, "");
927 return meta->heap_blob.data + index;
931 * mono_metadata_guid_heap:
932 * @meta: metadata context
933 * @index: index into the guid heap.
935 * Returns: an in-memory pointer to the @index in the guid heap.
938 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
941 index *= 16; /* adjust for guid size and 1-based index */
942 g_return_val_if_fail (index < meta->heap_guid.size, "");
943 return meta->heap_guid.data + index;
946 static const unsigned char *
947 dword_align (const unsigned char *ptr)
949 #if SIZEOF_VOID_P == 8
950 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
952 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
957 * mono_metadata_decode_row:
958 * @t: table to extract information from.
959 * @idx: index in table.
960 * @res: array of @res_size cols to store the results in
962 * This decompresses the metadata element @idx in table @t
963 * into the guint32 @res array that has res_size elements
966 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
968 guint32 bitfield = t->size_bitfield;
969 int i, count = mono_metadata_table_count (bitfield);
972 g_assert (idx < t->rows);
973 data = t->base + idx * t->row_size;
975 g_assert (res_size == count);
977 for (i = 0; i < count; i++) {
978 int n = mono_metadata_table_size (bitfield, i);
982 res [i] = *data; break;
984 res [i] = read16 (data); break;
986 res [i] = read32 (data); break;
988 g_assert_not_reached ();
995 * mono_metadata_decode_row_col:
996 * @t: table to extract information from.
997 * @idx: index for row in table.
998 * @col: column in the row.
1000 * This function returns the value of column @col from the @idx
1001 * row in the table @t.
1004 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
1006 guint32 bitfield = t->size_bitfield;
1008 register const char *data;
1011 g_assert (idx < t->rows);
1012 g_assert (col < mono_metadata_table_count (bitfield));
1013 data = t->base + idx * t->row_size;
1015 n = mono_metadata_table_size (bitfield, 0);
1016 for (i = 0; i < col; ++i) {
1018 n = mono_metadata_table_size (bitfield, i + 1);
1024 return read16 (data);
1026 return read32 (data);
1028 g_assert_not_reached ();
1034 * mono_metadata_decode_blob_size:
1035 * @ptr: pointer to a blob object
1036 * @rptr: the new position of the pointer
1038 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1040 * Returns: the size of the blob object
1043 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1045 const unsigned char *ptr = (const unsigned char *)xptr;
1048 if ((*ptr & 0x80) == 0){
1049 size = ptr [0] & 0x7f;
1051 } else if ((*ptr & 0x40) == 0){
1052 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1055 size = ((ptr [0] & 0x1f) << 24) +
1067 * mono_metadata_decode_value:
1068 * @ptr: pointer to decode from
1069 * @rptr: the new position of the pointer
1071 * This routine decompresses 32-bit values as specified in the "Blob and
1072 * Signature" section (22.2)
1074 * Returns: the decoded value
1077 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1079 const unsigned char *ptr = (const unsigned char *) _ptr;
1080 unsigned char b = *ptr;
1083 if ((b & 0x80) == 0){
1086 } else if ((b & 0x40) == 0){
1087 len = ((b & 0x3f) << 8 | ptr [1]);
1090 len = ((b & 0x1f) << 24) |
1103 * mono_metadata_decode_signed_value:
1104 * @ptr: pointer to decode from
1105 * @rptr: the new position of the pointer
1107 * This routine decompresses 32-bit signed values
1108 * (not specified in the spec)
1110 * Returns: the decoded value
1113 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1115 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1116 gint32 ival = uval >> 1;
1119 /* ival is a truncated 2's complement negative number. */
1121 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1124 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1125 return ival - 0x2000;
1126 if (ival < 0x10000000)
1127 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1128 return ival - 0x10000000;
1129 g_assert (ival < 0x20000000);
1130 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1131 return ival - 0x20000000;
1135 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1136 * using the *Ptr tables in uncompressed metadata, if they are available.
1138 * FIXME: The caller is not forced to call this function, which is error-prone, since
1139 * forgetting to call it would only show up as a bug on uncompressed metadata.
1142 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1144 if (!image->uncompressed_metadata)
1148 case MONO_TABLE_METHOD:
1149 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1150 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1153 case MONO_TABLE_FIELD:
1154 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1155 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1158 case MONO_TABLE_EVENT:
1159 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1160 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1163 case MONO_TABLE_PROPERTY:
1164 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1165 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1168 case MONO_TABLE_PARAM:
1169 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1170 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1179 * mono_metadata_decode_table_row:
1181 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1182 * uncompressed metadata into account, so it should be used to access the
1183 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1184 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1187 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1189 if (image->uncompressed_metadata)
1190 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1192 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1196 * mono_metadata_decode_table_row_col:
1198 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1199 * uncompressed metadata into account, so it should be used to access the
1200 * Method, Field, Param and Event tables.
1202 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1204 if (image->uncompressed_metadata)
1205 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1207 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1211 * mono_metadata_parse_typedef_or_ref:
1212 * @m: a metadata context.
1213 * @ptr: a pointer to an encoded TypedefOrRef in @m
1214 * @rptr: pointer updated to match the end of the decoded stream
1216 * Returns: a token valid in the @m metadata decoded from
1217 * the compressed representation.
1220 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1223 token = mono_metadata_decode_value (ptr, &ptr);
1226 return mono_metadata_token_from_dor (token);
1230 * mono_metadata_parse_custom_mod:
1231 * @m: a metadata context.
1232 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1233 * @ptr: a pointer to (possibly) the start of a custom modifier list
1234 * @rptr: pointer updated to match the end of the decoded stream
1236 * Checks if @ptr points to a type custom modifier compressed representation.
1238 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1241 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1243 MonoCustomMod local;
1244 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1247 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1248 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1255 * mono_metadata_parse_array_full:
1256 * @m: a metadata context.
1257 * @ptr: a pointer to an encoded array description.
1258 * @rptr: pointer updated to match the end of the decoded stream
1260 * Decodes the compressed array description found in the metadata @m at @ptr.
1262 * Returns: a #MonoArrayType structure describing the array type
1263 * and dimensions. Memory is allocated from the image mempool.
1265 * LOCKING: Acquires the loader lock
1268 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1269 const char *ptr, const char **rptr)
1272 MonoArrayType *array;
1275 array = mono_image_alloc0 (m, sizeof (MonoArrayType));
1276 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1279 array->eklass = mono_class_from_mono_type (etype);
1280 array->rank = mono_metadata_decode_value (ptr, &ptr);
1282 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1283 if (array->numsizes)
1284 array->sizes = g_new0 (int, array->numsizes);
1285 for (i = 0; i < array->numsizes; ++i)
1286 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1288 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1289 if (array->numlobounds)
1290 array->lobounds = g_new0 (int, array->numlobounds);
1291 for (i = 0; i < array->numlobounds; ++i)
1292 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1300 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1302 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1306 * mono_metadata_free_array:
1307 * @array: array description
1309 * Frees the array description returned from mono_metadata_parse_array().
1312 mono_metadata_free_array (MonoArrayType *array)
1314 g_free (array->sizes);
1315 g_free (array->lobounds);
1320 * need to add common field and param attributes combinations:
1323 * public static literal
1326 * private static literal
1328 static const MonoType
1330 /* data, attrs, type, nmods, byref, pinned */
1331 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1332 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1333 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1334 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1335 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1336 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1337 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1338 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1339 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1340 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1341 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1342 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1343 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1344 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1345 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1346 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1347 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1348 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1349 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1350 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1351 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1352 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1353 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1354 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1355 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1356 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1357 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1358 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1359 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1360 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1361 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1362 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1363 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1364 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1367 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1369 static GHashTable *type_cache = NULL;
1370 static GHashTable *generic_inst_cache = NULL;
1371 static GHashTable *generic_class_cache = NULL;
1372 static int next_generic_inst_id = 0;
1375 * Protected by the loader lock.
1376 * It has a MonoMethodInflated* as key and value.
1377 * The key lookup will just access the declaring and context fields
1379 static GHashTable *generic_method_cache = NULL;
1382 * Protected by the loader lock.
1383 * It has a MonoInflatedMethodSignature* as key and value.
1385 static GHashTable *generic_signature_cache = NULL;
1387 static guint mono_generic_class_hash (gconstpointer data);
1390 * MonoTypes with modifies are never cached, so we never check or use that field.
1393 mono_type_hash (gconstpointer data)
1395 const MonoType *type = (const MonoType *) data;
1396 if (type->type == MONO_TYPE_GENERICINST)
1397 return mono_generic_class_hash (type->data.generic_class);
1399 return type->type | (type->byref << 8) | (type->attrs << 9);
1403 mono_type_equal (gconstpointer ka, gconstpointer kb)
1405 const MonoType *a = (const MonoType *) ka;
1406 const MonoType *b = (const MonoType *) kb;
1408 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1410 /* need other checks */
1415 mono_metadata_generic_inst_hash (gconstpointer data)
1417 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1421 for (i = 0; i < ginst->type_argc; ++i) {
1423 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1426 return hash ^ (ginst->is_open << 8);
1430 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1434 if (a->id && b->id) {
1437 if (!signature_only)
1441 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1443 for (i = 0; i < a->type_argc; ++i) {
1444 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1451 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1453 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1454 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1456 return mono_generic_inst_equal_full (a, b, FALSE);
1460 mono_generic_class_hash (gconstpointer data)
1462 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1463 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1466 hash += gclass->is_tb_open;
1467 hash += mono_metadata_generic_context_hash (&gclass->context);
1473 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1475 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1476 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1478 return _mono_metadata_generic_class_equal (a, b, FALSE);
1482 * mono_metadata_init:
1484 * Initialize the global variables of this module.
1485 * This is a Mono runtime internal function.
1488 mono_metadata_init (void)
1492 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1493 generic_inst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
1494 generic_class_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
1496 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1497 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1501 * mono_metadata_cleanup:
1503 * Free all resources used by this module.
1504 * This is a Mono runtime internal function.
1507 mono_metadata_cleanup (void)
1509 g_hash_table_destroy (type_cache);
1510 g_hash_table_destroy (generic_inst_cache);
1511 g_hash_table_destroy (generic_class_cache);
1512 if (generic_method_cache)
1513 g_hash_table_destroy (generic_method_cache);
1514 if (generic_signature_cache)
1515 g_hash_table_destroy (generic_signature_cache);
1517 generic_inst_cache = NULL;
1518 generic_class_cache = NULL;
1519 generic_method_cache = NULL;
1520 generic_signature_cache = NULL;
1524 * mono_metadata_parse_type:
1525 * @m: metadata context
1526 * @mode: king of type that may be found at @ptr
1527 * @opt_attrs: optional attributes to store in the returned type
1528 * @ptr: pointer to the type representation
1529 * @rptr: pointer updated to match the end of the decoded stream
1531 * Decode a compressed type description found at @ptr in @m.
1532 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1533 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1534 * This function can be used to decode type descriptions in method signatures,
1535 * field signatures, locals signatures etc.
1537 * To parse a generic type, `generic_container' points to the current class'es
1538 * (the `generic_container' field in the MonoClass) or the current generic method's
1539 * (the `generic_container' field in the MonoMethodNormal) generic container.
1540 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1541 * this MonoGenericContainer.
1542 * This is a Mono runtime internal function.
1544 * LOCKING: Acquires the loader lock.
1546 * Returns: a #MonoType structure representing the decoded type.
1549 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1550 short opt_attrs, const char *ptr, const char **rptr)
1552 MonoType *type, *cached;
1554 gboolean byref = FALSE;
1555 gboolean pinned = FALSE;
1556 const char *tmp_ptr;
1561 * According to the spec, custom modifiers should come before the byref
1562 * flag, but the IL produced by ilasm from the following signature:
1563 * object modopt(...) &
1564 * starts with a byref flag, followed by the modifiers. (bug #49802)
1565 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1566 * it would be better to treat byref as real type constructor instead of
1568 * Also, pinned should come before anything else, but some MSV++ produced
1569 * assemblies violate this (#bug 61990).
1572 /* Count the modifiers first */
1577 case MONO_TYPE_PINNED:
1578 case MONO_TYPE_BYREF:
1581 case MONO_TYPE_CMOD_REQD:
1582 case MONO_TYPE_CMOD_OPT:
1584 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1592 type = mono_image_alloc0 (m, sizeof (MonoType) + ((gint32)count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod));
1593 type->num_mods = count;
1595 g_warning ("got more than 64 modifiers in type");
1598 memset (type, 0, sizeof (MonoType));
1601 /* Parse pinned, byref and custom modifiers */
1606 case MONO_TYPE_PINNED:
1610 case MONO_TYPE_BYREF:
1614 case MONO_TYPE_CMOD_REQD:
1615 case MONO_TYPE_CMOD_OPT:
1616 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1624 type->attrs = opt_attrs;
1625 type->byref = byref;
1626 type->pinned = pinned ? 1 : 0;
1628 if (!do_mono_metadata_parse_type (type, m, container, ptr, &ptr)) {
1635 if (!type->num_mods) {
1636 /* no need to free type here, because it is on the stack */
1637 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1638 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1640 /* Consider the case:
1642 class Foo<T> { class Bar {} }
1643 class Test : Foo<Test>.Bar {}
1645 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1646 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1648 We ensure that the MonoClass is in a state that we can canonicalize to:
1650 klass->byval_arg.data.klass == klass
1651 klass->this_arg.data.klass == klass
1653 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1655 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1656 of a MonoClass which currently holds the loader lock. 'type' is local.
1658 if (ret->data.klass == type->data.klass) {
1662 /* No need to use locking since nobody is modifying the hash table */
1663 if ((cached = g_hash_table_lookup (type_cache, type))) {
1668 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1670 if (type == &stype) {
1671 type = mono_image_alloc (m, sizeof (MonoType));
1672 memcpy (type, &stype, sizeof (MonoType));
1678 * LOCKING: Acquires the loader lock.
1681 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1682 const char *ptr, const char **rptr)
1684 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1688 * mono_metadata_get_param_attrs:
1690 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1691 * returned memory needs to be freed by the caller. If all the param attributes are
1692 * 0, then NULL is returned.
1695 mono_metadata_get_param_attrs (MonoImage *m, int def)
1697 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1698 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1699 guint32 cols [MONO_PARAM_SIZE];
1700 guint lastp, i, param_index = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def - 1, MONO_METHOD_PARAMLIST);
1703 if (def < methodt->rows)
1704 lastp = mono_metadata_decode_row_col (&m->tables [MONO_TABLE_METHOD], def, MONO_METHOD_PARAMLIST);
1706 lastp = paramt->rows + 1;
1708 for (i = param_index; i < lastp; ++i) {
1709 mono_metadata_decode_row (&m->tables [MONO_TABLE_PARAM], i - 1, cols, MONO_PARAM_SIZE);
1710 if (cols [MONO_PARAM_FLAGS]) {
1712 pattrs = g_new0 (int, 1 + (lastp - param_index));
1713 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1721 * mono_metadata_parse_signature_full:
1722 * @image: metadata context
1723 * @generic_container: generic container
1724 * @toke: metadata token
1726 * Decode a method signature stored in the STANDALONESIG table
1728 * LOCKING: Assumes the loader lock is held.
1730 * Returns: a MonoMethodSignature describing the signature.
1732 MonoMethodSignature*
1733 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1735 MonoTableInfo *tables = image->tables;
1736 guint32 idx = mono_metadata_token_index (token);
1741 return mono_lookup_dynamic_token (image, token, NULL);
1743 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1745 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1747 ptr = mono_metadata_blob_heap (image, sig);
1748 mono_metadata_decode_blob_size (ptr, &ptr);
1750 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1754 * mono_metadata_parse_signature:
1755 * @image: metadata context
1756 * @toke: metadata token
1758 * Decode a method signature stored in the STANDALONESIG table
1760 * Returns: a MonoMethodSignature describing the signature.
1762 MonoMethodSignature*
1763 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1765 return mono_metadata_parse_signature_full (image, NULL, token);
1769 * mono_metadata_signature_alloc:
1770 * @image: metadata context
1771 * @nparmas: number of parameters in the signature
1773 * Allocate a MonoMethodSignature structure with the specified number of params.
1774 * The return type and the params types need to be filled later.
1775 * This is a Mono runtime internal function.
1777 * LOCKING: Assumes the loader lock is held.
1779 * Returns: the new MonoMethodSignature structure.
1781 MonoMethodSignature*
1782 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1784 MonoMethodSignature *sig;
1786 sig = mono_image_alloc0 (m, sizeof (MonoMethodSignature) + ((gint32)nparams - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
1787 sig->param_count = nparams;
1788 sig->sentinelpos = -1;
1793 static MonoMethodSignature*
1794 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1797 MonoMethodSignature *ret;
1798 sigsize = sizeof (MonoMethodSignature) + (sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *);
1801 ret = mono_image_alloc (image, sigsize);
1803 ret = mono_mempool_alloc (mp, sigsize);
1805 ret = g_malloc (sigsize);
1807 memcpy (ret, sig, sigsize);
1811 MonoMethodSignature*
1812 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1814 return mono_metadata_signature_dup_internal (image, NULL, sig);
1817 /*The mempool is accessed without synchronization*/
1818 MonoMethodSignature*
1819 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1821 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1825 * mono_metadata_signature_dup:
1826 * @sig: method signature
1828 * Duplicate an existing MonoMethodSignature so it can be modified.
1829 * This is a Mono runtime internal function.
1831 * Returns: the new MonoMethodSignature structure.
1833 MonoMethodSignature*
1834 mono_metadata_signature_dup (MonoMethodSignature *sig)
1836 return mono_metadata_signature_dup_full (NULL, sig);
1840 * mono_metadata_signature_size:
1842 * Return the amount of memory allocated to SIG.
1845 mono_metadata_signature_size (MonoMethodSignature *sig)
1847 return sizeof (MonoMethodSignature) + (sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *);
1851 * mono_metadata_parse_method_signature:
1852 * @m: metadata context
1853 * @generic_container: generics container
1854 * @def: the MethodDef index or 0 for Ref signatures.
1855 * @ptr: pointer to the signature metadata representation
1856 * @rptr: pointer updated to match the end of the decoded stream
1858 * Decode a method signature stored at @ptr.
1859 * This is a Mono runtime internal function.
1861 * LOCKING: Assumes the loader lock is held.
1863 * Returns: a MonoMethodSignature describing the signature.
1865 MonoMethodSignature *
1866 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1867 int def, const char *ptr, const char **rptr)
1869 MonoMethodSignature *method;
1870 int i, *pattrs = NULL;
1871 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1872 guint32 gen_param_count = 0;
1873 gboolean is_open = FALSE;
1876 gen_param_count = 1;
1881 call_convention = *ptr & 0x0F;
1883 if (gen_param_count)
1884 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1885 param_count = mono_metadata_decode_value (ptr, &ptr);
1888 pattrs = mono_metadata_get_param_attrs (m, def);
1889 method = mono_metadata_signature_alloc (m, param_count);
1890 method->hasthis = hasthis;
1891 method->explicit_this = explicit_this;
1892 method->call_convention = call_convention;
1893 method->generic_param_count = gen_param_count;
1895 if (call_convention != 0xa) {
1896 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1898 mono_metadata_free_method_signature (method);
1902 is_open = mono_class_is_open_constructed_type (method->ret);
1905 for (i = 0; i < method->param_count; ++i) {
1906 if (*ptr == MONO_TYPE_SENTINEL) {
1907 if (method->call_convention != MONO_CALL_VARARG || def)
1908 g_error ("found sentinel for methoddef or no vararg method");
1909 if (method->sentinelpos >= 0)
1910 g_error ("found sentinel twice in the same signature");
1911 method->sentinelpos = i;
1914 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1915 if (!method->params [i]) {
1916 mono_metadata_free_method_signature (method);
1921 is_open = mono_class_is_open_constructed_type (method->params [i]);
1924 /* The sentinel could be missing if the caller does not pass any additional arguments */
1925 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1926 method->sentinelpos = method->param_count;
1928 method->has_type_parameters = is_open;
1930 if (def && (method->call_convention == MONO_CALL_VARARG))
1931 method->sentinelpos = method->param_count;
1938 * Add signature to a cache and increase ref count...
1945 * mono_metadata_parse_method_signature:
1946 * @m: metadata context
1947 * @def: the MethodDef index or 0 for Ref signatures.
1948 * @ptr: pointer to the signature metadata representation
1949 * @rptr: pointer updated to match the end of the decoded stream
1951 * Decode a method signature stored at @ptr.
1952 * This is a Mono runtime internal function.
1954 * LOCKING: Assumes the loader lock is held.
1956 * Returns: a MonoMethodSignature describing the signature.
1958 MonoMethodSignature *
1959 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1961 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1965 * mono_metadata_free_method_signature:
1966 * @sig: signature to destroy
1968 * Free the memory allocated in the signature @sig.
1969 * This method needs to be robust and work also on partially-built
1970 * signatures, so it does extra checks.
1973 mono_metadata_free_method_signature (MonoMethodSignature *sig)
1975 /* Everything is allocated from mempools */
1979 mono_metadata_free_type (sig->ret);
1980 for (i = 0; i < sig->param_count; ++i) {
1981 if (sig->params [i])
1982 mono_metadata_free_type (sig->params [i]);
1988 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
1992 /* Allocated in inflate_generic_signature () */
1994 mono_metadata_free_type (sig->ret);
1995 for (i = 0; i < sig->param_count; ++i) {
1996 if (sig->params [i])
1997 mono_metadata_free_type (sig->params [i]);
2003 inflated_method_equal (gconstpointer a, gconstpointer b)
2005 const MonoMethodInflated *ma = a;
2006 const MonoMethodInflated *mb = b;
2007 if (ma->declaring != mb->declaring)
2009 if (ma->method.method.is_mb_open != mb->method.method.is_mb_open)
2011 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2015 inflated_method_hash (gconstpointer a)
2017 const MonoMethodInflated *ma = a;
2018 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring)) + ma->method.method.is_mb_open;
2022 inflated_signature_equal (gconstpointer a, gconstpointer b)
2024 const MonoInflatedMethodSignature *sig1 = a;
2025 const MonoInflatedMethodSignature *sig2 = b;
2027 /* sig->sig is assumed to be canonized */
2028 if (sig1->sig != sig2->sig)
2030 /* The generic instances are canonized */
2031 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2035 inflated_signature_hash (gconstpointer a)
2037 const MonoInflatedMethodSignature *sig = a;
2039 /* sig->sig is assumed to be canonized */
2040 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2044 dump_ginst (MonoGenericInst *ginst)
2049 g_print ("Ginst: <");
2050 for (i = 0; i < ginst->type_argc; ++i) {
2053 name = mono_type_get_name (ginst->type_argv [i]);
2054 g_print ("%s", name);
2060 static gboolean type_in_image (MonoType *type, MonoImage *image);
2063 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2065 gpointer iter = NULL;
2068 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2069 if (type_in_image (p, image))
2072 return type_in_image (mono_signature_get_return_type (sig), image);
2076 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2080 for (i = 0; i < ginst->type_argc; ++i) {
2081 if (type_in_image (ginst->type_argv [i], image))
2089 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2091 return gclass->container_class->image == image ||
2092 ginst_in_image (gclass->context.class_inst, image);
2096 type_in_image (MonoType *type, MonoImage *image)
2099 switch (type->type) {
2100 case MONO_TYPE_GENERICINST:
2101 return gclass_in_image (type->data.generic_class, image);
2103 type = type->data.type;
2105 case MONO_TYPE_SZARRAY:
2106 type = &type->data.klass->byval_arg;
2108 case MONO_TYPE_ARRAY:
2109 type = &type->data.array->eklass->byval_arg;
2111 case MONO_TYPE_FNPTR:
2112 return signature_in_image (type->data.method, image);
2113 case MONO_TYPE_VAR: {
2114 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2116 g_assert (!container->is_method);
2118 * FIXME: The following check is here solely
2119 * for monodis, which uses the internal
2121 * mono_metadata_load_generic_params(). The
2122 * caller of that function needs to fill in
2123 * owner->klass or owner->method of the
2124 * returned struct, but monodis doesn't do
2125 * that. The image unloading depends on that,
2126 * however, so a crash results without this
2129 if (!container->owner.klass)
2131 return container->owner.klass->image == image;
2133 return type->data.generic_param->image == image;
2136 case MONO_TYPE_MVAR: {
2137 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2139 g_assert (container->is_method);
2140 if (!container->owner.method)
2141 /* RefEmit created generic param whose method is not finished */
2143 return container->owner.method->klass->image == image;
2145 return type->data.generic_param->image == image;
2149 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2150 return image == mono_class_from_mono_type (type)->image;
2157 } CleanForImageUserData;
2160 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2162 MonoGenericClass *gclass = key;
2163 CleanForImageUserData *user_data = data;
2165 if (!gclass_in_image (gclass, user_data->image))
2168 user_data->list = g_slist_prepend (user_data->list, gclass);
2173 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2175 MonoGenericInst *ginst = key;
2176 CleanForImageUserData *user_data = data;
2178 if (!ginst_in_image (ginst, user_data->image))
2181 user_data->list = g_slist_prepend (user_data->list, ginst);
2186 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2188 MonoImage *image = data;
2189 MonoMethodInflated *method = key;
2192 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2193 return method->declaring->klass->image == image ||
2194 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2195 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2199 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2201 MonoImage *image = data;
2202 MonoInflatedMethodSignature *sig = key;
2204 return signature_in_image (sig->sig, image) ||
2205 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2206 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2210 mono_metadata_clean_for_image (MonoImage *image)
2212 CleanForImageUserData ginst_data, gclass_data;
2215 /* The data structures could reference each other so we delete them in two phases */
2216 ginst_data.image = gclass_data.image = image;
2217 ginst_data.list = gclass_data.list = NULL;
2219 mono_loader_lock ();
2220 /* Collect the items to delete and remove them from the hash table */
2221 g_hash_table_foreach_steal (generic_inst_cache, steal_ginst_in_image, &ginst_data);
2222 g_hash_table_foreach_steal (generic_class_cache, steal_gclass_in_image, &gclass_data);
2223 if (generic_method_cache)
2224 g_hash_table_foreach_remove (generic_method_cache, inflated_method_in_image, image);
2225 if (generic_signature_cache)
2226 g_hash_table_foreach_remove (generic_signature_cache, inflated_signature_in_image, image);
2227 /* Delete the removed items */
2228 for (l = ginst_data.list; l; l = l->next)
2229 free_generic_inst (l->data);
2230 for (l = gclass_data.list; l; l = l->next)
2231 free_generic_class (l->data);
2232 g_slist_free (ginst_data.list);
2233 g_slist_free (gclass_data.list);
2234 mono_class_unregister_image_generic_subclasses (image);
2235 mono_loader_unlock ();
2239 free_inflated_method (MonoMethodInflated *imethod)
2242 MonoMethod *method = (MonoMethod*)imethod;
2244 mono_marshal_free_inflated_wrappers (method);
2246 if (method->signature)
2247 mono_metadata_free_inflated_signature (method->signature);
2249 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))) {
2250 MonoMethodNormal* mn = (MonoMethodNormal*) method;
2251 MonoMethodHeader *header = mn->header;
2254 /* Allocated in inflate_generic_header () */
2255 for (i = 0; i < header->num_locals; ++i)
2256 mono_metadata_free_type (header->locals [i]);
2257 g_free (header->clauses);
2266 free_generic_inst (MonoGenericInst *ginst)
2270 for (i = 0; i < ginst->type_argc; ++i)
2271 mono_metadata_free_type (ginst->type_argv [i]);
2277 free_generic_class (MonoGenericClass *gclass)
2281 /* FIXME: The dynamic case */
2282 if (gclass->cached_class && !gclass->cached_class->image->dynamic && !mono_generic_class_is_generic_type_definition (gclass)) {
2283 MonoClass *class = gclass->cached_class;
2285 /* Allocated in mono_class_init () */
2286 g_free (class->methods);
2288 g_free (class->ext->properties);
2289 /* Allocated in mono_generic_class_get_class () */
2290 g_free (class->interfaces);
2292 } else if (gclass->is_dynamic) {
2293 MonoDynamicGenericClass *dgclass = (MonoDynamicGenericClass *)gclass;
2295 for (i = 0; i < dgclass->count_fields; ++i) {
2296 MonoClassField *field = dgclass->fields + i;
2297 mono_metadata_free_type (field->type);
2298 g_free ((char*)field->name);
2300 for (i = 0; i < dgclass->count_properties; ++i) {
2301 MonoProperty *property = dgclass->properties + i;
2302 g_free ((char*)property->name);
2304 for (i = 0; i < dgclass->count_events; ++i) {
2305 MonoEvent *event = dgclass->events + i;
2306 g_free ((char*)event->name);
2309 g_free (dgclass->methods);
2310 g_free (dgclass->ctors);
2311 g_free (dgclass->fields);
2312 g_free (dgclass->properties);
2313 g_free (dgclass->events);
2314 g_free (dgclass->field_objects);
2315 g_free (dgclass->field_generic_types);
2316 if (!mono_generic_class_is_generic_type_definition (gclass))
2317 g_free (gclass->cached_class);
2323 free_inflated_signature (MonoInflatedMethodSignature *sig)
2325 mono_metadata_free_inflated_signature (sig->sig);
2330 * LOCKING: assumes the loader lock is held.
2333 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2336 if (!generic_method_cache)
2337 generic_method_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2338 g_hash_table_insert (generic_method_cache, method, method);
2341 if (generic_method_cache)
2342 return g_hash_table_lookup (generic_method_cache, method);
2348 * mono_metadata_get_inflated_signature:
2350 * Given an inflated signature and a generic context, return a canonical copy of the
2351 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2353 MonoMethodSignature *
2354 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2356 MonoInflatedMethodSignature helper;
2357 MonoInflatedMethodSignature *res;
2359 mono_loader_lock ();
2360 if (!generic_signature_cache)
2361 generic_signature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2364 helper.context.class_inst = context->class_inst;
2365 helper.context.method_inst = context->method_inst;
2366 res = g_hash_table_lookup (generic_signature_cache, &helper);
2368 res = g_new0 (MonoInflatedMethodSignature, 1);
2370 res->context.class_inst = context->class_inst;
2371 res->context.method_inst = context->method_inst;
2372 g_hash_table_insert (generic_signature_cache, res, res);
2375 mono_loader_unlock ();
2380 * mono_metadata_get_generic_inst:
2382 * Given a list of types, return a MonoGenericInst that represents that list.
2383 * The returned MonoGenericInst has its own copy of the list of types. The list
2384 * passed in the argument can be freed, modified or disposed of.
2388 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2390 MonoGenericInst *ginst;
2393 int size = sizeof (MonoGenericInst) + (type_argc - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *);
2395 for (i = 0; i < type_argc; ++i)
2396 if (mono_class_is_open_constructed_type (type_argv [i]))
2398 is_open = (i < type_argc);
2400 ginst = alloca (size);
2402 ginst->is_open = is_open;
2403 ginst->type_argc = type_argc;
2404 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2406 mono_loader_lock ();
2408 ginst = g_hash_table_lookup (generic_inst_cache, ginst);
2410 ginst = g_malloc (size);
2411 ginst->id = ++next_generic_inst_id;
2412 ginst->is_open = is_open;
2413 ginst->type_argc = type_argc;
2415 for (i = 0; i < type_argc; ++i)
2416 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2418 g_hash_table_insert (generic_inst_cache, ginst, ginst);
2421 mono_loader_unlock ();
2426 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2428 MonoGenericContainer *container = container_class->generic_container;
2430 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2432 return inst == container->context.class_inst;
2436 * mono_metadata_lookup_generic_class:
2438 * Returns a MonoGenericClass with the given properties.
2442 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2444 MonoGenericClass *gclass;
2445 MonoGenericClass helper;
2446 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2448 helper.container_class = container_class;
2449 helper.context.class_inst = inst;
2450 helper.context.method_inst = NULL;
2451 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2452 helper.is_tb_open = is_tb_open;
2453 helper.cached_class = NULL;
2455 mono_loader_lock ();
2457 gclass = g_hash_table_lookup (generic_class_cache, &helper);
2459 /* A tripwire just to keep us honest */
2460 g_assert (!helper.cached_class);
2463 mono_loader_unlock ();
2468 MonoDynamicGenericClass *dgclass = g_new0 (MonoDynamicGenericClass, 1);
2469 gclass = &dgclass->generic_class;
2470 gclass->is_dynamic = 1;
2472 gclass = g_new0 (MonoGenericClass, 1);
2475 gclass->is_tb_open = is_tb_open;
2476 gclass->container_class = container_class;
2477 gclass->context.class_inst = inst;
2478 gclass->context.method_inst = NULL;
2479 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2480 gclass->cached_class = container_class;
2482 g_hash_table_insert (generic_class_cache, gclass, gclass);
2484 mono_loader_unlock ();
2490 * mono_metadata_inflate_generic_inst:
2492 * Instantiate the generic instance @ginst with the context @context.
2496 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context)
2498 MonoType **type_argv;
2499 MonoGenericInst *nginst;
2502 if (!ginst->is_open)
2505 type_argv = g_new0 (MonoType*, ginst->type_argc);
2507 for (i = 0; i < ginst->type_argc; i++)
2508 type_argv [i] = mono_class_inflate_generic_type (ginst->type_argv [i], context);
2510 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2512 for (i = 0; i < ginst->type_argc; i++)
2513 mono_metadata_free_type (type_argv [i]);
2520 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2521 int count, const char *ptr, const char **rptr)
2523 MonoType **type_argv;
2524 MonoGenericInst *ginst;
2527 type_argv = g_new0 (MonoType*, count);
2529 for (i = 0; i < count; i++) {
2530 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2541 ginst = mono_metadata_get_generic_inst (count, type_argv);
2549 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2550 const char *ptr, const char **rptr)
2552 MonoGenericInst *inst;
2557 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
2561 gklass = mono_class_from_mono_type (gtype);
2562 if (!gklass->generic_container)
2565 count = mono_metadata_decode_value (ptr, &ptr);
2566 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
2573 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
2579 * @gc: The generic container to normalize
2580 * @type: The kind of generic parameters the resulting generic-container should contain
2583 static MonoGenericContainer *
2584 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
2586 gboolean is_var = (type == MONO_TYPE_VAR);
2590 g_assert (is_var || type == MONO_TYPE_MVAR);
2593 if (gc->is_method || gc->parent)
2595 * The current MonoGenericContainer is a generic method -> its `parent'
2596 * points to the containing class'es container.
2605 * mono_metadata_parse_generic_param:
2606 * @generic_container: Our MonoClass's or MonoMethodNormal's MonoGenericContainer;
2607 * see mono_metadata_parse_type_full() for details.
2608 * Internal routine to parse a generic type parameter.
2609 * LOCKING: Acquires the loader lock
2611 static MonoGenericParam *
2612 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
2613 MonoTypeEnum type, const char *ptr, const char **rptr)
2615 int index = mono_metadata_decode_value (ptr, &ptr);
2619 generic_container = select_container (generic_container, type);
2620 if (!generic_container) {
2621 /* Create dummy MonoGenericParam */
2622 MonoGenericParam *param;
2624 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
2631 g_assert (index < generic_container->type_argc);
2632 return mono_generic_container_get_param (generic_container, index);
2636 * mono_metadata_get_shared_type:
2638 * Return a shared instance of TYPE, if available, NULL otherwise.
2639 * Shared MonoType instances help save memory. Their contents should not be modified
2640 * by the caller. They do not need to be freed as their lifetime is bound by either
2641 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
2642 * instance they are embedded in. If they are freed, they should be freed using
2643 * mono_metadata_free_type () instead of g_free ().
2646 mono_metadata_get_shared_type (MonoType *type)
2650 /* No need to use locking since nobody is modifying the hash table */
2651 if ((cached = g_hash_table_lookup (type_cache, type)))
2654 switch (type->type){
2655 case MONO_TYPE_CLASS:
2656 case MONO_TYPE_VALUETYPE:
2657 if (type == &type->data.klass->byval_arg)
2659 if (type == &type->data.klass->this_arg)
2668 * do_mono_metadata_parse_type:
2669 * @type: MonoType to be filled in with the return value
2671 * @generic_context: generics_context
2672 * @ptr: pointer to the encoded type
2673 * @rptr: pointer where the end of the encoded type is saved
2675 * Internal routine used to "fill" the contents of @type from an
2676 * allocated pointer. This is done this way to avoid doing too
2677 * many mini-allocations (particularly for the MonoFieldType which
2678 * most of the time is just a MonoType, but sometimes might be augmented).
2680 * This routine is used by mono_metadata_parse_type and
2681 * mono_metadata_parse_field_type
2683 * This extracts a Type as specified in Partition II (22.2.12)
2685 * Returns: FALSE if the type could not be loaded
2688 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2689 const char *ptr, const char **rptr)
2692 type->type = mono_metadata_decode_value (ptr, &ptr);
2694 switch (type->type){
2695 case MONO_TYPE_VOID:
2696 case MONO_TYPE_BOOLEAN:
2697 case MONO_TYPE_CHAR:
2710 case MONO_TYPE_STRING:
2711 case MONO_TYPE_OBJECT:
2712 case MONO_TYPE_TYPEDBYREF:
2714 case MONO_TYPE_VALUETYPE:
2715 case MONO_TYPE_CLASS: {
2717 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
2718 type->data.klass = mono_class_get (m, token);
2719 if (!type->data.klass)
2723 case MONO_TYPE_SZARRAY: {
2724 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2727 type->data.klass = mono_class_from_mono_type (etype);
2731 type->data.type = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2732 if (!type->data.type)
2735 case MONO_TYPE_FNPTR:
2736 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
2738 case MONO_TYPE_ARRAY:
2739 type->data.array = mono_metadata_parse_array_full (m, container, ptr, &ptr);
2741 case MONO_TYPE_MVAR:
2742 if (container && !container->is_method)
2745 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
2747 case MONO_TYPE_GENERICINST:
2748 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
2751 g_error ("type 0x%02x not handled in do_mono_metadata_parse_type", type->type);
2760 * mono_metadata_free_type:
2761 * @type: type to free
2763 * Free the memory allocated for type @type which is allocated on the heap.
2766 mono_metadata_free_type (MonoType *type)
2768 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
2771 switch (type->type){
2772 case MONO_TYPE_OBJECT:
2773 case MONO_TYPE_STRING:
2774 if (!type->data.klass)
2777 case MONO_TYPE_CLASS:
2778 case MONO_TYPE_VALUETYPE:
2779 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
2783 mono_metadata_free_type (type->data.type);
2785 case MONO_TYPE_FNPTR:
2786 mono_metadata_free_method_signature (type->data.method);
2788 case MONO_TYPE_ARRAY:
2789 mono_metadata_free_array (type->data.array);
2798 hex_dump (const char *buffer, int base, int count)
2800 int show_header = 1;
2808 for (i = 0; i < count; i++){
2811 printf ("\n0x%08x: ", (unsigned char) base + i);
2813 printf ("%02x ", (unsigned char) (buffer [i]));
2820 * @mh: The Method header
2821 * @ptr: Points to the beginning of the Section Data (25.3)
2824 parse_section_data (MonoImage *m, MonoMethodHeader *mh, const unsigned char *ptr)
2826 unsigned char sect_data_flags;
2827 const unsigned char *sptr;
2829 guint32 sect_data_len;
2832 /* align on 32-bit boundary */
2833 sptr = ptr = dword_align (ptr);
2834 sect_data_flags = *ptr;
2837 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
2839 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
2842 sect_data_len = ptr [0];
2846 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
2847 hex_dump (sptr, 0, sect_data_len+8);
2848 g_print ("\nheader: ");
2849 hex_dump (sptr-4, 0, 4);
2853 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
2854 const unsigned char *p = dword_align (ptr);
2856 mh->num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
2857 /* we could just store a pointer if we don't need to byteswap */
2858 mh->clauses = mono_image_alloc0 (m, sizeof (MonoExceptionClause) * mh->num_clauses);
2859 for (i = 0; i < mh->num_clauses; ++i) {
2860 MonoExceptionClause *ec = &mh->clauses [i];
2863 ec->flags = read32 (p);
2864 ec->try_offset = read32 (p + 4);
2865 ec->try_len = read32 (p + 8);
2866 ec->handler_offset = read32 (p + 12);
2867 ec->handler_len = read32 (p + 16);
2868 tof_value = read32 (p + 20);
2871 ec->flags = read16 (p);
2872 ec->try_offset = read16 (p + 2);
2873 ec->try_len = *(p + 4);
2874 ec->handler_offset = read16 (p + 5);
2875 ec->handler_len = *(p + 7);
2876 tof_value = read32 (p + 8);
2879 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2880 ec->data.filter_offset = tof_value;
2881 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
2882 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
2884 ec->data.catch_class = NULL;
2886 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
2890 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
2891 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
2898 * mono_metadata_parse_mh_full:
2899 * @m: metadata context
2900 * @generic_context: generics context
2901 * @ptr: pointer to the method header.
2903 * Decode the method header at @ptr, including pointer to the IL code,
2904 * info about local variables and optional exception tables.
2905 * This is a Mono runtime internal function.
2907 * LOCKING: Acquires the loader lock.
2909 * Returns: a MonoMethodHeader allocated from the image mempool.
2912 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
2914 MonoMethodHeader *mh;
2915 unsigned char flags = *(const unsigned char *) ptr;
2916 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
2918 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
2919 const unsigned char *code;
2922 g_return_val_if_fail (ptr != NULL, NULL);
2925 case METHOD_HEADER_TINY_FORMAT:
2926 mh = mono_image_alloc0 (m, sizeof (MonoMethodHeader));
2929 local_var_sig_tok = 0;
2930 mh->code_size = flags >> 2;
2931 mh->code = (unsigned char*)ptr;
2933 case METHOD_HEADER_TINY_FORMAT1:
2934 mh = mono_image_alloc0 (m, sizeof (MonoMethodHeader));
2937 local_var_sig_tok = 0;
2940 * The spec claims 3 bits, but the Beta2 is
2943 mh->code_size = flags >> 2;
2944 mh->code = (unsigned char*)ptr;
2946 case METHOD_HEADER_FAT_FORMAT:
2947 fat_flags = read16 (ptr);
2949 hsize = (fat_flags >> 12) & 0xf;
2950 max_stack = read16 (ptr);
2952 code_size = read32 (ptr);
2954 local_var_sig_tok = read32 (ptr);
2957 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
2962 code = (unsigned char*)ptr;
2964 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
2968 * There are more sections
2970 ptr = (char*)code + code_size;
2976 if (local_var_sig_tok) {
2977 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
2978 const char *locals_ptr;
2979 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
2980 int len=0, i, bsize;
2982 mono_metadata_decode_row (t, (local_var_sig_tok & 0xffffff)-1, cols, 1);
2983 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
2984 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
2985 if (*locals_ptr != 0x07)
2986 g_warning ("wrong signature for locals blob");
2988 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
2989 mh = mono_image_alloc0 (m, sizeof (MonoMethodHeader) + (len - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
2990 mh->num_locals = len;
2991 for (i = 0; i < len; ++i) {
2992 mh->locals [i] = mono_metadata_parse_type_full (
2993 m, container, MONO_PARSE_LOCAL, 0, locals_ptr, &locals_ptr);
2994 if (!mh->locals [i]) {
2999 mh = mono_image_alloc0 (m, sizeof (MonoMethodHeader));
3002 mh->code_size = code_size;
3003 mh->max_stack = max_stack;
3004 mh->init_locals = init_locals;
3005 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3006 parse_section_data (m, mh, (const unsigned char*)ptr);
3011 * mono_metadata_parse_mh:
3012 * @generic_context: generics context
3013 * @ptr: pointer to the method header.
3015 * Decode the method header at @ptr, including pointer to the IL code,
3016 * info about local variables and optional exception tables.
3017 * This is a Mono runtime internal function.
3019 * Returns: a MonoMethodHeader.
3022 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3024 MonoMethodHeader *res;
3026 mono_loader_lock ();
3028 res = mono_metadata_parse_mh_full (m, NULL, ptr);
3030 mono_loader_unlock ();
3036 * mono_metadata_free_mh:
3037 * @mh: a method header
3039 * Free the memory allocated for the method header.
3040 * This is a Mono runtime internal function.
3043 mono_metadata_free_mh (MonoMethodHeader *mh)
3045 /* Allocated from the mempool */
3049 * mono_method_header_get_code:
3050 * @header: a MonoMethodHeader pointer
3051 * @code_size: memory location for returning the code size
3052 * @max_stack: memory location for returning the max stack
3054 * Method header accessor to retreive info about the IL code properties:
3055 * a pointer to the IL code itself, the size of the code and the max number
3056 * of stack slots used by the code.
3058 * Returns: pointer to the IL code represented by the method header.
3060 const unsigned char*
3061 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3064 *code_size = header->code_size;
3066 *max_stack = header->max_stack;
3067 return header->code;
3071 * mono_method_header_get_locals:
3072 * @header: a MonoMethodHeader pointer
3073 * @num_locals: memory location for returning the number of local variables
3074 * @init_locals: memory location for returning the init_locals flag
3076 * Method header accessor to retreive info about the local variables:
3077 * an array of local types, the number of locals and whether the locals
3078 * are supposed to be initialized to 0 on method entry
3080 * Returns: pointer to an array of types of the local variables
3083 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3086 *num_locals = header->num_locals;
3088 *init_locals = header->init_locals;
3089 return header->locals;
3093 * mono_method_header_get_num_clauses:
3094 * @header: a MonoMethodHeader pointer
3096 * Method header accessor to retreive the number of exception clauses.
3098 * Returns: the number of exception clauses present
3101 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3103 return header->num_clauses;
3107 * mono_method_header_get_clauses:
3108 * @header: a MonoMethodHeader pointer
3109 * @method: MonoMethod the header belongs to
3110 * @iter: pointer to a iterator
3111 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3113 * Get the info about the exception clauses in the method. Set *iter to NULL to
3114 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3115 * At each iteration, the structure pointed to by clause if filled with the
3116 * exception clause information.
3118 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3122 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3124 MonoExceptionClause *sc;
3125 /* later we'll be able to use this interface to parse the clause info on demand,
3126 * without allocating anything.
3128 if (!iter || !header->num_clauses)
3131 *iter = sc = header->clauses;
3137 if (sc < header->clauses + header->num_clauses) {
3146 * mono_metadata_parse_field_type:
3147 * @m: metadata context to extract information from
3148 * @ptr: pointer to the field signature
3149 * @rptr: pointer updated to match the end of the decoded stream
3151 * Parses the field signature, and returns the type information for it.
3153 * Returns: The MonoType that was extracted from @ptr.
3156 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3158 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3162 * mono_metadata_parse_param:
3163 * @m: metadata context to extract information from
3164 * @ptr: pointer to the param signature
3165 * @rptr: pointer updated to match the end of the decoded stream
3167 * Parses the param signature, and returns the type information for it.
3169 * Returns: The MonoType that was extracted from @ptr.
3172 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3174 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3178 * mono_metadata_token_from_dor:
3179 * @dor_token: A TypeDefOrRef coded index
3181 * dor_token is a TypeDefOrRef coded index: it contains either
3182 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3183 * bits contain an index into the table.
3185 * Returns: an expanded token
3188 mono_metadata_token_from_dor (guint32 dor_index)
3192 table = dor_index & 0x03;
3193 idx = dor_index >> 2;
3196 case 0: /* TypeDef */
3197 return MONO_TOKEN_TYPE_DEF | idx;
3198 case 1: /* TypeRef */
3199 return MONO_TOKEN_TYPE_REF | idx;
3200 case 2: /* TypeSpec */
3201 return MONO_TOKEN_TYPE_SPEC | idx;
3203 g_assert_not_reached ();
3210 * We use this to pass context information to the row locator
3213 int idx; /* The index that we are trying to locate */
3214 int col_idx; /* The index in the row where idx may be stored */
3215 MonoTableInfo *t; /* pointer to the table */
3220 * How the row locator works.
3225 * ___|___------> _______
3228 * A column in the rows of table A references an index in table B.
3229 * For example A may be the TYPEDEF table and B the METHODDEF table.
3231 * Given an index in table B we want to get the row in table A
3232 * where the column n references our index in B.
3234 * In the locator_t structure:
3236 * col_idx is the column number
3237 * index is the index in table B
3238 * result will be the index in table A
3241 * Table A Table B column (in table A)
3242 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3243 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3244 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3245 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3246 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3248 * Note that we still don't support encoded indexes.
3252 typedef_locator (const void *a, const void *b)
3254 locator_t *loc = (locator_t *) a;
3255 const char *bb = (const char *) b;
3256 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3257 guint32 col, col_next;
3259 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3265 * Need to check that the next row is valid.
3267 if (typedef_index + 1 < loc->t->rows) {
3268 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3269 if (loc->idx >= col_next)
3272 if (col == col_next)
3276 loc->result = typedef_index;
3282 table_locator (const void *a, const void *b)
3284 locator_t *loc = (locator_t *) a;
3285 const char *bb = (const char *) b;
3286 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3289 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3291 if (loc->idx == col) {
3292 loc->result = table_index;
3302 declsec_locator (const void *a, const void *b)
3304 locator_t *loc = (locator_t *) a;
3305 const char *bb = (const char *) b;
3306 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3309 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3311 if (loc->idx == col) {
3312 loc->result = table_index;
3324 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3325 * which contains IDX.
3328 search_ptr_table (MonoImage *image, int table, int idx)
3330 MonoTableInfo *ptrdef = &image->tables [table];
3333 /* Use a linear search to find our index in the table */
3334 for (i = 0; i < ptrdef->rows; i ++)
3335 /* All the Ptr tables have the same structure */
3336 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3339 if (i < ptrdef->rows)
3346 * mono_metadata_typedef_from_field:
3347 * @meta: metadata context
3348 * @index: FieldDef token
3350 * Returns: the 1-based index into the TypeDef table of the type that
3351 * declared the field described by @index, or 0 if not found.
3354 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3356 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3362 loc.idx = mono_metadata_token_index (index);
3363 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3366 if (meta->uncompressed_metadata)
3367 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3369 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3370 g_assert_not_reached ();
3372 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3373 return loc.result + 1;
3377 * mono_metadata_typedef_from_method:
3378 * @meta: metadata context
3379 * @index: MethodDef token
3381 * Returns: the 1-based index into the TypeDef table of the type that
3382 * declared the method described by @index. 0 if not found.
3385 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3387 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3393 loc.idx = mono_metadata_token_index (index);
3394 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3397 if (meta->uncompressed_metadata)
3398 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3400 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3401 g_assert_not_reached ();
3403 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3404 return loc.result + 1;
3408 * mono_metadata_interfaces_from_typedef_full:
3409 * @meta: metadata context
3410 * @index: typedef token
3412 * The array of interfaces that the @index typedef token implements is returned in
3413 * @interfaces. The number of elemnts in the array is returned in @count.
3415 * LOCKING: Assumes the loader lock is held.
3417 * Returns: TRUE on success, FALSE on failure.
3420 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, MonoGenericContext *context)
3422 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3425 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3434 loc.idx = mono_metadata_token_index (index);
3435 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3438 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3443 * We may end up in the middle of the rows...
3446 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
3452 while (pos < tdef->rows) {
3453 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3454 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3459 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
3462 while (pos < tdef->rows) {
3465 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3466 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3468 iface = mono_class_get_full (
3469 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
3472 result [pos - start] = iface;
3475 *count = pos - start;
3476 *interfaces = result;
3481 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
3483 MonoClass **interfaces;
3486 mono_loader_lock ();
3487 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, NULL);
3488 mono_loader_unlock ();
3496 * mono_metadata_nested_in_typedef:
3497 * @meta: metadata context
3498 * @index: typedef token
3500 * Returns: the 1-based index into the TypeDef table of the type
3501 * where the type described by @index is nested.
3502 * Retruns 0 if @index describes a non-nested type.
3505 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
3507 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3513 loc.idx = mono_metadata_token_index (index);
3514 loc.col_idx = MONO_NESTED_CLASS_NESTED;
3517 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3520 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3521 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
3525 * mono_metadata_nesting_typedef:
3526 * @meta: metadata context
3527 * @index: typedef token
3529 * Returns: the 1-based index into the TypeDef table of the first type
3530 * that is nested inside the type described by @index. The search starts at
3531 * @start_index. returns 0 if no such type is found.
3534 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
3536 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3538 guint32 class_index = mono_metadata_token_index (index);
3543 start = start_index;
3545 while (start <= tdef->rows) {
3546 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
3552 if (start > tdef->rows)
3559 * mono_metadata_packing_from_typedef:
3560 * @meta: metadata context
3561 * @index: token representing a type
3563 * Returns: the info stored in the ClassLAyout table for the given typedef token
3564 * into the @packing and @size pointers.
3565 * Returns 0 if the info is not found.
3568 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
3570 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
3572 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
3577 loc.idx = mono_metadata_token_index (index);
3578 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
3581 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3584 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
3586 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
3588 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
3590 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3591 return loc.result + 1;
3595 * mono_metadata_custom_attrs_from_index:
3596 * @meta: metadata context
3597 * @index: token representing the parent
3599 * Returns: the 1-based index into the CustomAttribute table of the first
3600 * attribute which belongs to the metadata object described by @index.
3601 * Returns 0 if no such attribute is found.
3604 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
3606 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
3613 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
3616 /* FIXME: Index translation */
3618 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3621 /* Find the first entry by searching backwards */
3622 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
3625 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3626 return loc.result + 1;
3630 * mono_metadata_declsec_from_index:
3631 * @meta: metadata context
3632 * @index: token representing the parent
3634 * Returns: the 0-based index into the DeclarativeSecurity table of the first
3635 * attribute which belongs to the metadata object described by @index.
3636 * Returns -1 if no such attribute is found.
3639 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
3641 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
3648 loc.col_idx = MONO_DECL_SECURITY_PARENT;
3651 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
3654 /* Find the first entry by searching backwards */
3655 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
3663 mono_backtrace (int limit)
3668 backtrace (array, limit);
3669 names = backtrace_symbols (array, limit);
3670 for (i =0; i < limit; ++i) {
3671 g_print ("\t%s\n", names [i]);
3678 /*#define __alignof__(a) sizeof(a)*/
3679 #define __alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
3684 * @t: the type to return the size of
3686 * Returns: the number of bytes required to hold an instance of this
3690 mono_type_size (MonoType *t, int *align)
3697 *align = __alignof__(gpointer);
3698 return sizeof (gpointer);
3702 case MONO_TYPE_VOID:
3705 case MONO_TYPE_BOOLEAN:
3706 *align = __alignof__(gint8);
3710 *align = __alignof__(gint8);
3712 case MONO_TYPE_CHAR:
3715 *align = __alignof__(gint16);
3719 *align = __alignof__(gint32);
3722 *align = __alignof__(float);
3726 *align = __alignof__(gint64);
3729 *align = __alignof__(double);
3733 *align = __alignof__(gpointer);
3734 return sizeof (gpointer);
3735 case MONO_TYPE_STRING:
3736 *align = __alignof__(gpointer);
3737 return sizeof (gpointer);
3738 case MONO_TYPE_OBJECT:
3739 *align = __alignof__(gpointer);
3740 return sizeof (gpointer);
3741 case MONO_TYPE_VALUETYPE: {
3742 if (t->data.klass->enumtype)
3743 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
3745 return mono_class_value_size (t->data.klass, (guint32*)align);
3747 case MONO_TYPE_CLASS:
3748 case MONO_TYPE_SZARRAY:
3750 case MONO_TYPE_FNPTR:
3751 case MONO_TYPE_ARRAY:
3752 *align = __alignof__(gpointer);
3753 return sizeof (gpointer);
3754 case MONO_TYPE_TYPEDBYREF:
3755 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
3756 case MONO_TYPE_GENERICINST: {
3757 MonoGenericClass *gclass = t->data.generic_class;
3758 MonoClass *container_class = gclass->container_class;
3760 // g_assert (!gclass->inst->is_open);
3762 if (container_class->valuetype) {
3763 if (container_class->enumtype)
3764 return mono_type_size (mono_class_enum_basetype (container_class), align);
3766 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3768 *align = __alignof__(gpointer);
3769 return sizeof (gpointer);
3773 case MONO_TYPE_MVAR:
3774 /* FIXME: Martin, this is wrong. */
3775 *align = __alignof__(gpointer);
3776 return sizeof (gpointer);
3778 g_error ("mono_type_size: type 0x%02x unknown", t->type);
3784 * mono_type_stack_size:
3785 * @t: the type to return the size it uses on the stack
3787 * Returns: the number of bytes required to hold an instance of this
3788 * type on the runtime stack
3791 mono_type_stack_size (MonoType *t, int *align)
3793 return mono_type_stack_size_internal (t, align, FALSE);
3797 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
3800 #if SIZEOF_VOID_P == SIZEOF_REGISTER
3801 int stack_slot_size = sizeof (gpointer);
3802 int stack_slot_align = __alignof__ (gpointer);
3803 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
3804 int stack_slot_size = SIZEOF_REGISTER;
3805 int stack_slot_align = SIZEOF_REGISTER;
3808 g_assert (t != NULL);
3814 *align = stack_slot_align;
3815 return stack_slot_size;
3819 case MONO_TYPE_BOOLEAN:
3820 case MONO_TYPE_CHAR:
3829 case MONO_TYPE_STRING:
3830 case MONO_TYPE_OBJECT:
3831 case MONO_TYPE_CLASS:
3832 case MONO_TYPE_SZARRAY:
3834 case MONO_TYPE_FNPTR:
3835 case MONO_TYPE_ARRAY:
3836 *align = stack_slot_align;
3837 return stack_slot_size;
3839 case MONO_TYPE_MVAR:
3840 g_assert (allow_open);
3841 *align = stack_slot_align;
3842 return stack_slot_size;
3843 case MONO_TYPE_TYPEDBYREF:
3844 *align = stack_slot_align;
3845 return stack_slot_size * 3;
3847 *align = __alignof__(float);
3848 return sizeof (float);
3851 *align = __alignof__(gint64);
3852 return sizeof (gint64);
3854 *align = __alignof__(double);
3855 return sizeof (double);
3856 case MONO_TYPE_VALUETYPE: {
3859 if (t->data.klass->enumtype)
3860 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
3862 size = mono_class_value_size (t->data.klass, (guint32*)align);
3864 *align = *align + stack_slot_align - 1;
3865 *align &= ~(stack_slot_align - 1);
3867 size += stack_slot_size - 1;
3868 size &= ~(stack_slot_size - 1);
3873 case MONO_TYPE_GENERICINST: {
3874 MonoGenericClass *gclass = t->data.generic_class;
3875 MonoClass *container_class = gclass->container_class;
3878 g_assert (!gclass->context.class_inst->is_open);
3880 if (container_class->valuetype) {
3881 if (container_class->enumtype)
3882 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
3884 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
3886 *align = *align + stack_slot_align - 1;
3887 *align &= ~(stack_slot_align - 1);
3889 size += stack_slot_size - 1;
3890 size &= ~(stack_slot_size - 1);
3895 *align = stack_slot_align;
3896 return stack_slot_size;
3900 g_error ("type 0x%02x unknown", t->type);
3906 mono_type_generic_inst_is_valuetype (MonoType *type)
3908 g_assert (type->type == MONO_TYPE_GENERICINST);
3909 return type->data.generic_class->container_class->valuetype;
3913 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
3915 return gclass->container_class->valuetype;
3919 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
3921 MonoGenericInst *i1 = g1->context.class_inst;
3922 MonoGenericInst *i2 = g2->context.class_inst;
3924 if (g1->is_dynamic != g2->is_dynamic)
3926 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
3928 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
3930 return g1->is_tb_open == g2->is_tb_open;
3934 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
3936 MonoGenericInst *i1 = g1->context.class_inst;
3937 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
3939 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
3941 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
3943 return !g1->is_tb_open;
3947 mono_metadata_generic_context_hash (const MonoGenericContext *context)
3949 /* FIXME: check if this seed is good enough */
3950 guint hash = 0xc01dfee7;
3951 if (context->class_inst)
3952 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
3953 if (context->method_inst)
3954 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
3959 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
3961 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
3965 * mono_metadata_type_hash:
3968 * Computes an hash value for @t1 to be used in GHashTable.
3971 mono_metadata_type_hash (MonoType *t1)
3973 guint hash = t1->type;
3975 hash |= t1->byref << 6; /* do not collide with t1->type values */
3977 case MONO_TYPE_VALUETYPE:
3978 case MONO_TYPE_CLASS:
3979 case MONO_TYPE_SZARRAY:
3980 /* check if the distribution is good enough */
3981 return ((hash << 5) - hash) ^ g_str_hash (t1->data.klass->name);
3983 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
3984 case MONO_TYPE_ARRAY:
3985 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
3986 case MONO_TYPE_GENERICINST:
3987 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
3993 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
3997 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4001 * We have to compare the image as well because if we didn't,
4002 * the generic_inst_cache lookup wouldn't care about the image
4003 * of generic params, so what could happen is that a generic
4004 * inst with params from image A is put into the cache, then
4005 * image B gets that generic inst from the cache, image A is
4006 * unloaded, so the inst is deleted, but image B still retains
4009 * The AOT runtime doesn't set the image when it's decoding
4010 * types, so we only compare it when the owner is NULL.
4012 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4013 (mono_generic_param_owner (p1) || p1->image == p2->image))
4017 * If `signature_only' is true, we're comparing two (method) signatures.
4018 * In this case, the owner of two type parameters doesn't need to match.
4021 return signature_only;
4025 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4029 if (c1->generic_class && c2->generic_class)
4030 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4031 if (c1->generic_class && c2->generic_container)
4032 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4033 if (c1->generic_container && c2->generic_class)
4034 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4035 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4036 return mono_metadata_generic_param_equal (
4037 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4038 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4039 return mono_metadata_generic_param_equal (
4040 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4041 if (signature_only &&
4042 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4043 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4048 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4050 gpointer iter1 = 0, iter2 = 0;
4054 if (s1->call_convention != s2->call_convention)
4056 if (s1->sentinelpos != s2->sentinelpos)
4058 if (s1->hasthis != s2->hasthis)
4060 if (s1->explicit_this != s2->explicit_this)
4062 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4064 if (s1->param_count != s2->param_count)
4068 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4069 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4071 if (t1 == NULL || t2 == NULL)
4073 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4079 * mono_metadata_type_equal:
4083 * Determine if @t1 and @t2 represent the same type.
4084 * Returns: #TRUE if @t1 and @t2 are equal.
4087 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4089 if (t1->type != t2->type || t1->byref != t2->byref)
4093 case MONO_TYPE_VOID:
4094 case MONO_TYPE_BOOLEAN:
4095 case MONO_TYPE_CHAR:
4106 case MONO_TYPE_STRING:
4109 case MONO_TYPE_OBJECT:
4110 case MONO_TYPE_TYPEDBYREF:
4112 case MONO_TYPE_VALUETYPE:
4113 case MONO_TYPE_CLASS:
4114 case MONO_TYPE_SZARRAY:
4115 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4117 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4118 case MONO_TYPE_ARRAY:
4119 if (t1->data.array->rank != t2->data.array->rank)
4121 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4122 case MONO_TYPE_GENERICINST:
4123 return _mono_metadata_generic_class_equal (
4124 t1->data.generic_class, t2->data.generic_class, signature_only);
4126 return mono_metadata_generic_param_equal (
4127 t1->data.generic_param, t2->data.generic_param, signature_only);
4128 case MONO_TYPE_MVAR:
4129 return mono_metadata_generic_param_equal (
4130 t1->data.generic_param, t2->data.generic_param, signature_only);
4131 case MONO_TYPE_FNPTR:
4132 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4134 g_error ("implement type compare for %0x!", t1->type);
4142 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
4144 return do_mono_metadata_type_equal (t1, t2, FALSE);
4148 * mono_metadata_type_equal_full:
4151 * @signature_only: if signature only comparison should be made
4153 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
4154 * behaves the same way as mono_metadata_type_equal.
4155 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
4156 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
4159 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
4161 return do_mono_metadata_type_equal (t1, t2, signature_only);
4165 * mono_metadata_signature_equal:
4166 * @sig1: a signature
4167 * @sig2: another signature
4169 * Determine if @sig1 and @sig2 represent the same signature, with the
4170 * same number of arguments and the same types.
4171 * Returns: #TRUE if @sig1 and @sig2 are equal.
4174 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4178 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4181 if (sig1->generic_param_count != sig2->generic_param_count)
4185 * We're just comparing the signatures of two methods here:
4187 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4188 * U and V are equal here.
4190 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4193 for (i = 0; i < sig1->param_count; i++) {
4194 MonoType *p1 = sig1->params[i];
4195 MonoType *p2 = sig2->params[i];
4197 /* if (p1->attrs != p2->attrs)
4200 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
4204 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4210 * mono_metadata_type_dup:
4211 * @image: image to alloc memory from
4212 * @original: type to duplicate
4214 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
4217 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
4220 int sizeof_o = sizeof (MonoType);
4222 sizeof_o += (o->num_mods - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod);
4224 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
4226 memcpy (r, o, sizeof_o);
4228 if (o->type == MONO_TYPE_PTR) {
4229 r->data.type = mono_metadata_type_dup (image, o->data.type);
4230 } else if (o->type == MONO_TYPE_ARRAY) {
4231 r->data.array = mono_dup_array_type (image, o->data.array);
4232 } else if (o->type == MONO_TYPE_FNPTR) {
4233 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
4234 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
4240 mono_signature_hash (MonoMethodSignature *sig)
4242 guint i, res = sig->ret->type;
4244 for (i = 0; i < sig->param_count; i++)
4245 res = (res << 5) - res + mono_type_hash (sig->params[i]);
4251 * mono_metadata_encode_value:
4252 * @value: value to encode
4253 * @buf: buffer where to write the compressed representation
4254 * @endbuf: pointer updated to point at the end of the encoded output
4256 * Encodes the value @value in the compressed representation used
4257 * in metadata and stores the result in @buf. @buf needs to be big
4258 * enough to hold the data (4 bytes).
4261 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
4267 else if (value < 0x4000) {
4268 p [0] = 0x80 | (value >> 8);
4269 p [1] = value & 0xff;
4272 p [0] = (value >> 24) | 0xc0;
4273 p [1] = (value >> 16) & 0xff;
4274 p [2] = (value >> 8) & 0xff;
4275 p [3] = value & 0xff;
4283 * mono_metadata_field_info:
4284 * @meta: the Image the field is defined in
4285 * @index: the index in the field table representing the field
4286 * @offset: a pointer to an integer where to store the offset that
4287 * may have been specified for the field in a FieldLayout table
4288 * @rva: a pointer to the RVA of the field data in the image that
4289 * may have been defined in a FieldRVA table
4290 * @marshal_spec: a pointer to the marshal spec that may have been
4291 * defined for the field in a FieldMarshal table.
4293 * Gather info for field @index that may have been defined in the FieldLayout,
4294 * FieldRVA and FieldMarshal tables.
4295 * Either of offset, rva and marshal_spec can be NULL if you're not interested
4299 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4300 MonoMarshalSpec **marshal_spec)
4302 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
4306 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4307 MonoMarshalSpec **marshal_spec)
4309 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
4313 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4314 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
4316 MonoTableInfo *tdef;
4319 loc.idx = index + 1;
4320 if (meta->uncompressed_metadata)
4321 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4324 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
4326 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
4329 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4330 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
4332 *offset = (guint32)-1;
4336 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
4338 loc.col_idx = MONO_FIELD_RVA_FIELD;
4341 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4343 * LAMESPEC: There is no signature, no nothing, just the raw data.
4345 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
4353 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
4354 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, p);
4361 * mono_metadata_get_constant_index:
4362 * @meta: the Image the field is defined in
4363 * @index: the token that may have a row defined in the constants table
4364 * @hint: possible position for the row
4366 * @token must be a FieldDef, ParamDef or PropertyDef token.
4368 * Returns: the index into the Constants table or 0 if not found.
4371 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4373 MonoTableInfo *tdef;
4375 guint32 index = mono_metadata_token_index (token);
4377 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4378 index <<= MONO_HASCONSTANT_BITS;
4379 switch (mono_metadata_token_table (token)) {
4380 case MONO_TABLE_FIELD:
4381 index |= MONO_HASCONSTANT_FIEDDEF;
4383 case MONO_TABLE_PARAM:
4384 index |= MONO_HASCONSTANT_PARAM;
4386 case MONO_TABLE_PROPERTY:
4387 index |= MONO_HASCONSTANT_PROPERTY;
4390 g_warning ("Not a valid token for the constant table: 0x%08x", token);
4394 loc.col_idx = MONO_CONSTANT_PARENT;
4397 /* FIXME: Index translation */
4399 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
4402 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4403 return loc.result + 1;
4409 * mono_metadata_events_from_typedef:
4410 * @meta: metadata context
4411 * @index: 0-based index (in the TypeDef table) describing a type
4413 * Returns: the 0-based index in the Event table for the events in the
4414 * type. The last event that belongs to the type (plus 1) is stored
4415 * in the @end_idx pointer.
4418 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4422 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
4430 loc.col_idx = MONO_EVENT_MAP_PARENT;
4431 loc.idx = index + 1;
4433 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4436 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
4437 if (loc.result + 1 < tdef->rows) {
4438 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
4440 end = meta->tables [MONO_TABLE_EVENT].rows;
4448 * mono_metadata_methods_from_event:
4449 * @meta: metadata context
4450 * @index: 0-based index (in the Event table) describing a event
4452 * Returns: the 0-based index in the MethodDef table for the methods in the
4453 * event. The last method that belongs to the event (plus 1) is stored
4454 * in the @end_idx pointer.
4457 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
4461 guint32 cols [MONO_METHOD_SEMA_SIZE];
4462 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4468 if (meta->uncompressed_metadata)
4469 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
4472 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4473 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
4475 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4480 * We may end up in the middle of the rows...
4483 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4489 while (end < msemt->rows) {
4490 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4491 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4500 * mono_metadata_properties_from_typedef:
4501 * @meta: metadata context
4502 * @index: 0-based index (in the TypeDef table) describing a type
4504 * Returns: the 0-based index in the Property table for the properties in the
4505 * type. The last property that belongs to the type (plus 1) is stored
4506 * in the @end_idx pointer.
4509 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4513 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
4521 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
4522 loc.idx = index + 1;
4524 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4527 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
4528 if (loc.result + 1 < tdef->rows) {
4529 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
4531 end = meta->tables [MONO_TABLE_PROPERTY].rows;
4539 * mono_metadata_methods_from_property:
4540 * @meta: metadata context
4541 * @index: 0-based index (in the PropertyDef table) describing a property
4543 * Returns: the 0-based index in the MethodDef table for the methods in the
4544 * property. The last method that belongs to the property (plus 1) is stored
4545 * in the @end_idx pointer.
4548 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
4552 guint32 cols [MONO_METHOD_SEMA_SIZE];
4553 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4559 if (meta->uncompressed_metadata)
4560 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
4563 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4564 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
4566 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4571 * We may end up in the middle of the rows...
4574 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4580 while (end < msemt->rows) {
4581 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4582 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4591 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
4594 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
4599 /* No index translation seems to be needed */
4602 loc.col_idx = MONO_IMPLMAP_MEMBER;
4603 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
4605 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4608 return loc.result + 1;
4612 * @image: context where the image is created
4613 * @type_spec: typespec token
4615 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
4619 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
4621 guint32 idx = mono_metadata_token_index (type_spec);
4623 guint32 cols [MONO_TYPESPEC_SIZE];
4626 MonoType *type, *type2;
4628 mono_loader_lock ();
4630 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4632 mono_loader_unlock ();
4636 t = &image->tables [MONO_TABLE_TYPESPEC];
4638 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
4639 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
4640 len = mono_metadata_decode_value (ptr, &ptr);
4642 type = mono_image_alloc0 (image, sizeof (MonoType));
4644 if (*ptr == MONO_TYPE_BYREF) {
4649 if (!do_mono_metadata_parse_type (type, image, NULL, ptr, &ptr)) {
4650 mono_loader_unlock ();
4654 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
4657 mono_loader_unlock ();
4661 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type);
4663 mono_loader_unlock ();
4670 mono_image_strndup (MonoImage *image, const char *data, guint len)
4674 return g_strndup (data, len);
4675 res = mono_image_alloc (image, len + 1);
4676 memcpy (res, data, len);
4682 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
4684 return mono_metadata_parse_marshal_spec_full (NULL, ptr);
4688 mono_metadata_parse_marshal_spec_full (MonoImage *image, const char *ptr)
4690 MonoMarshalSpec *res;
4692 const char *start = ptr;
4694 /* fixme: this is incomplete, but I cant find more infos in the specs */
4697 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
4699 res = g_new0 (MonoMarshalSpec, 1);
4701 len = mono_metadata_decode_value (ptr, &ptr);
4702 res->native = *ptr++;
4704 if (res->native == MONO_NATIVE_LPARRAY) {
4705 res->data.array_data.param_num = -1;
4706 res->data.array_data.num_elem = -1;
4707 res->data.array_data.elem_mult = -1;
4709 if (ptr - start <= len)
4710 res->data.array_data.elem_type = *ptr++;
4711 if (ptr - start <= len)
4712 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
4713 if (ptr - start <= len)
4714 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4715 if (ptr - start <= len) {
4717 * LAMESPEC: Older spec versions say this parameter comes before
4718 * num_elem. Never spec versions don't talk about elem_mult at
4719 * all, but csc still emits it, and it is used to distinguish
4720 * between param_num being 0, and param_num being omitted.
4721 * So if (param_num == 0) && (num_elem > 0), then
4722 * elem_mult == 0 -> the array size is num_elem
4723 * elem_mult == 1 -> the array size is @param_num + num_elem
4725 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
4729 if (res->native == MONO_NATIVE_BYVALTSTR) {
4730 if (ptr - start <= len)
4731 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4734 if (res->native == MONO_NATIVE_BYVALARRAY) {
4735 if (ptr - start <= len)
4736 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
4739 if (res->native == MONO_NATIVE_CUSTOM) {
4740 /* skip unused type guid */
4741 len = mono_metadata_decode_value (ptr, &ptr);
4743 /* skip unused native type name */
4744 len = mono_metadata_decode_value (ptr, &ptr);
4746 /* read custom marshaler type name */
4747 len = mono_metadata_decode_value (ptr, &ptr);
4748 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
4750 /* read cookie string */
4751 len = mono_metadata_decode_value (ptr, &ptr);
4752 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
4755 if (res->native == MONO_NATIVE_SAFEARRAY) {
4756 res->data.safearray_data.elem_type = 0;
4757 res->data.safearray_data.num_elem = 0;
4758 if (ptr - start <= len)
4759 res->data.safearray_data.elem_type = *ptr++;
4760 if (ptr - start <= len)
4761 res->data.safearray_data.num_elem = *ptr++;
4767 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
4769 if (spec->native == MONO_NATIVE_CUSTOM) {
4770 g_free (spec->data.custom_data.custom_name);
4771 g_free (spec->data.custom_data.cookie);
4777 * mono_type_to_unmanaged:
4779 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
4780 * describing the underlying native reprensetation of the type.
4782 * In addition the value pointed by
4783 * "conv" will contain the kind of marshalling required for this
4784 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
4787 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
4788 gboolean unicode, MonoMarshalConv *conv)
4790 MonoMarshalConv dummy_conv;
4796 *conv = MONO_MARSHAL_CONV_NONE;
4799 return MONO_NATIVE_UINT;
4803 case MONO_TYPE_BOOLEAN:
4805 switch (mspec->native) {
4806 case MONO_NATIVE_VARIANTBOOL:
4807 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
4808 return MONO_NATIVE_VARIANTBOOL;
4809 case MONO_NATIVE_BOOLEAN:
4810 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4811 return MONO_NATIVE_BOOLEAN;
4812 case MONO_NATIVE_I1:
4813 case MONO_NATIVE_U1:
4814 return mspec->native;
4816 g_error ("cant marshal bool to native type %02x", mspec->native);
4819 *conv = MONO_MARSHAL_CONV_BOOL_I4;
4820 return MONO_NATIVE_BOOLEAN;
4821 case MONO_TYPE_CHAR: return MONO_NATIVE_U2;
4822 case MONO_TYPE_I1: return MONO_NATIVE_I1;
4823 case MONO_TYPE_U1: return MONO_NATIVE_U1;
4824 case MONO_TYPE_I2: return MONO_NATIVE_I2;
4825 case MONO_TYPE_U2: return MONO_NATIVE_U2;
4826 case MONO_TYPE_I4: return MONO_NATIVE_I4;
4827 case MONO_TYPE_U4: return MONO_NATIVE_U4;
4828 case MONO_TYPE_I8: return MONO_NATIVE_I8;
4829 case MONO_TYPE_U8: return MONO_NATIVE_U8;
4830 case MONO_TYPE_R4: return MONO_NATIVE_R4;
4831 case MONO_TYPE_R8: return MONO_NATIVE_R8;
4832 case MONO_TYPE_STRING:
4834 switch (mspec->native) {
4835 case MONO_NATIVE_BSTR:
4836 *conv = MONO_MARSHAL_CONV_STR_BSTR;
4837 return MONO_NATIVE_BSTR;
4838 case MONO_NATIVE_LPSTR:
4839 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4840 return MONO_NATIVE_LPSTR;
4841 case MONO_NATIVE_LPWSTR:
4842 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4843 return MONO_NATIVE_LPWSTR;
4844 case MONO_NATIVE_LPTSTR:
4845 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
4846 return MONO_NATIVE_LPTSTR;
4847 case MONO_NATIVE_ANSIBSTR:
4848 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
4849 return MONO_NATIVE_ANSIBSTR;
4850 case MONO_NATIVE_TBSTR:
4851 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
4852 return MONO_NATIVE_TBSTR;
4853 case MONO_NATIVE_BYVALTSTR:
4855 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
4857 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
4858 return MONO_NATIVE_BYVALTSTR;
4860 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);
4864 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
4865 return MONO_NATIVE_LPWSTR;
4868 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
4869 return MONO_NATIVE_LPSTR;
4871 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
4872 case MONO_TYPE_VALUETYPE: /*FIXME*/
4873 if (type->data.klass->enumtype) {
4874 t = mono_class_enum_basetype (type->data.klass)->type;
4877 if (type->data.klass == mono_defaults.handleref_class){
4878 *conv = MONO_MARSHAL_CONV_HANDLEREF;
4879 return MONO_NATIVE_INT;
4881 return MONO_NATIVE_STRUCT;
4882 case MONO_TYPE_SZARRAY:
4883 case MONO_TYPE_ARRAY:
4885 switch (mspec->native) {
4886 case MONO_NATIVE_BYVALARRAY:
4887 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
4888 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
4890 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
4891 return MONO_NATIVE_BYVALARRAY;
4892 case MONO_NATIVE_SAFEARRAY:
4893 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
4894 return MONO_NATIVE_SAFEARRAY;
4895 case MONO_NATIVE_LPARRAY:
4896 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4897 return MONO_NATIVE_LPARRAY;
4899 g_error ("cant marshal array as native type %02x", mspec->native);
4903 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
4904 return MONO_NATIVE_LPARRAY;
4905 case MONO_TYPE_I: return MONO_NATIVE_INT;
4906 case MONO_TYPE_U: return MONO_NATIVE_UINT;
4907 case MONO_TYPE_CLASS:
4908 case MONO_TYPE_OBJECT: {
4909 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
4911 switch (mspec->native) {
4912 case MONO_NATIVE_STRUCT:
4913 return MONO_NATIVE_STRUCT;
4914 case MONO_NATIVE_CUSTOM:
4915 return MONO_NATIVE_CUSTOM;
4916 case MONO_NATIVE_INTERFACE:
4917 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
4918 return MONO_NATIVE_INTERFACE;
4919 case MONO_NATIVE_IDISPATCH:
4920 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
4921 return MONO_NATIVE_IDISPATCH;
4922 case MONO_NATIVE_IUNKNOWN:
4923 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
4924 return MONO_NATIVE_IUNKNOWN;
4925 case MONO_NATIVE_FUNC:
4926 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4927 type->data.klass == mono_defaults.delegate_class ||
4928 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4929 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4930 return MONO_NATIVE_FUNC;
4934 g_error ("cant marshal object as native type %02x", mspec->native);
4937 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
4938 type->data.klass == mono_defaults.delegate_class ||
4939 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
4940 *conv = MONO_MARSHAL_CONV_DEL_FTN;
4941 return MONO_NATIVE_FUNC;
4943 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
4944 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
4945 return MONO_NATIVE_INT;
4947 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
4948 return MONO_NATIVE_STRUCT;
4950 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
4951 case MONO_TYPE_GENERICINST:
4952 type = &type->data.generic_class->container_class->byval_arg;
4955 case MONO_TYPE_TYPEDBYREF:
4957 g_error ("type 0x%02x not handled in marshal", t);
4959 return MONO_NATIVE_MAX;
4963 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
4966 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
4972 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
4973 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
4975 /* FIXME: Index translation */
4977 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4980 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
4984 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
4986 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
4988 switch (tok & MONO_METHODDEFORREF_MASK) {
4989 case MONO_METHODDEFORREF_METHODDEF:
4990 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
4991 case MONO_METHODDEFORREF_METHODREF:
4992 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
4994 g_assert_not_reached ();
4999 * mono_class_get_overrides_full:
5001 * Return the method overrides belonging to class @type_token in @overrides, and
5002 * the number of overrides in @num_overrides.
5004 * Returns: TRUE on success, FALSE on failure.
5007 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5008 MonoGenericContext *generic_context)
5011 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5014 guint32 cols [MONO_METHODIMPL_SIZE];
5015 MonoMethod **result;
5026 loc.col_idx = MONO_METHODIMPL_CLASS;
5027 loc.idx = mono_metadata_token_index (type_token);
5029 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5035 * We may end up in the middle of the rows...
5038 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5043 while (end < tdef->rows) {
5044 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5050 result = g_new (MonoMethod*, num * 2);
5051 for (i = 0; i < num; ++i) {
5054 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5055 method = method_from_method_def_or_ref (
5056 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
5059 result [i * 2] = method;
5060 method = method_from_method_def_or_ref (
5061 image, cols [MONO_METHODIMPL_BODY], generic_context);
5064 result [i * 2 + 1] = method;
5067 *overrides = result;
5069 *num_overrides = num;
5074 * mono_guid_to_string:
5076 * Converts a 16 byte Microsoft GUID to the standard string representation.
5079 mono_guid_to_string (const guint8 *guid)
5081 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5082 guid[3], guid[2], guid[1], guid[0],
5086 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
5090 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
5092 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
5093 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
5094 guint32 i, token, found;
5095 MonoClass *klass, **res;
5096 GList *cons = NULL, *tmp;
5097 MonoGenericContext *context = &container->context;
5099 *constraints = NULL;
5101 for (i = 0; i < tdef->rows; ++i) {
5102 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
5103 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
5104 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
5105 klass = mono_class_get_full (image, token, context);
5106 cons = g_list_append (cons, klass);
5109 /* contiguous list finished */
5116 res = g_new0 (MonoClass*, found + 1);
5117 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
5118 res [i] = tmp->data;
5126 * mono_metadata_get_generic_param_row:
5129 * @token: TypeOrMethodDef token, owner for GenericParam
5130 * @owner: coded token, set on return
5132 * Returns: 1-based row-id in the GenericParam table whose
5133 * owner is @token. 0 if not found.
5136 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
5138 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5145 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
5146 *owner = MONO_TYPEORMETHOD_TYPE;
5147 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5148 *owner = MONO_TYPEORMETHOD_METHOD;
5150 g_error ("wrong token %x to get_generic_param_row", token);
5153 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
5156 loc.col_idx = MONO_GENERICPARAM_OWNER;
5159 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5162 /* Find the first entry by searching backwards */
5163 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
5166 return loc.result + 1;
5170 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
5173 return mono_metadata_get_generic_param_row (image, token, &owner);
5177 * mono_metadata_load_generic_param_constraints:
5179 * Load the generic parameter constraints for the newly created generic type or method
5180 * represented by @token and @container. The @container is the new container which has
5181 * been returned by a call to mono_metadata_load_generic_params() with this @token.
5184 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
5185 MonoGenericContainer *container)
5187 guint32 start_row, i, owner;
5188 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
5190 for (i = 0; i < container->type_argc; i++)
5191 get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container);
5195 * mono_metadata_load_generic_params:
5197 * Load the type parameters from the type or method definition @token.
5199 * Use this method after parsing a type or method definition to figure out whether it's a generic
5200 * type / method. When parsing a method definition, @parent_container points to the generic container
5201 * of the current class, if any.
5203 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
5204 * creating the type.
5206 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
5208 * LOCKING: Acquires the loader lock
5211 MonoGenericContainer *
5212 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
5214 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5215 guint32 cols [MONO_GENERICPARAM_SIZE];
5216 guint32 i, owner = 0, n;
5217 MonoGenericContainer *container;
5218 MonoGenericParamFull *params;
5219 MonoGenericContext *context;
5221 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
5223 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5226 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
5229 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
5230 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
5231 params [n - 1].param.owner = container;
5232 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
5233 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
5234 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
5235 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
5236 if (params [n - 1].param.num != n - 1)
5237 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
5238 if (++i > tdef->rows)
5240 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5241 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
5243 container->type_argc = n;
5244 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
5245 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
5247 container->parent = parent_container;
5249 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5250 container->is_method = 1;
5252 g_assert (container->parent == NULL || container->is_method);
5254 context = &container->context;
5255 if (container->is_method) {
5256 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
5257 context->method_inst = mono_get_shared_generic_inst (container);
5259 context->class_inst = mono_get_shared_generic_inst (container);
5266 mono_get_shared_generic_inst (MonoGenericContainer *container)
5268 MonoType **type_argv;
5270 MonoGenericInst *nginst;
5273 type_argv = g_new0 (MonoType *, container->type_argc);
5274 helper = g_new0 (MonoType, container->type_argc);
5276 for (i = 0; i < container->type_argc; i++) {
5277 MonoType *t = &helper [i];
5279 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5280 t->data.generic_param = mono_generic_container_get_param (container, i);
5285 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
5294 mono_type_is_byref (MonoType *type)
5300 mono_type_get_type (MonoType *type)
5305 /* For MONO_TYPE_FNPTR */
5306 MonoMethodSignature*
5307 mono_type_get_signature (MonoType *type)
5309 return type->data.method;
5312 /* For MONO_TYPE_CLASS, VALUETYPE */
5314 mono_type_get_class (MonoType *type)
5316 return type->data.klass;
5319 /* For MONO_TYPE_ARRAY */
5321 mono_type_get_array_type (MonoType *type)
5323 return type->data.array;
5326 /* For MONO_TYPE_PTR */
5328 mono_type_get_ptr_type (MonoType *type)
5330 return type->data.type;
5334 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
5336 /* FIXME: implement */
5341 mono_signature_get_return_type (MonoMethodSignature *sig)
5347 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
5353 /* start from the first */
5354 if (sig->param_count) {
5355 *iter = &sig->params [0];
5356 return sig->params [0];
5364 if (type < &sig->params [sig->param_count]) {
5372 mono_signature_get_param_count (MonoMethodSignature *sig)
5374 return sig->param_count;
5378 mono_signature_get_call_conv (MonoMethodSignature *sig)
5380 return sig->call_convention;
5384 mono_signature_vararg_start (MonoMethodSignature *sig)
5386 return sig->sentinelpos;
5390 mono_signature_is_instance (MonoMethodSignature *sig)
5392 return sig->hasthis;
5396 mono_signature_explicit_this (MonoMethodSignature *sig)
5398 return sig->explicit_this;
5401 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
5403 mono_aligned_addr_hash (gconstpointer ptr)
5405 return GPOINTER_TO_UINT (ptr) >> 3;
5409 * If @field belongs to an inflated generic class, return the corresponding field of the
5410 * generic type definition class.
5413 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
5418 if (!field->parent->generic_class)
5421 gtd = field->parent->generic_class->container_class;
5422 offset = field - field->parent->fields;
5423 return gtd->fields + offset;
5427 * If @event belongs to an inflated generic class, return the corresponding event of the
5428 * generic type definition class.
5431 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
5436 if (!event->parent->generic_class)
5439 gtd = event->parent->generic_class->container_class;
5440 offset = event - event->parent->ext->events;
5441 return gtd->ext->events + offset;
5445 * If @property belongs to an inflated generic class, return the corresponding property of the
5446 * generic type definition class.
5449 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
5454 if (!property->parent->generic_class)
5457 gtd = property->parent->generic_class->container_class;
5458 offset = property - property->parent->ext->properties;
5459 return gtd->ext->properties + offset;