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)
18 #include "tabledefs.h"
19 #include "mono-endian.h"
21 #include "tokentype.h"
22 #include "metadata-internals.h"
23 #include "class-internals.h"
24 #include "verify-internals.h"
27 #include "debug-helpers.h"
28 #include "abi-details.h"
29 #include <mono/utils/mono-error-internals.h>
30 #include <mono/utils/bsearch.h>
32 /* Auxiliary structure used for caching inflated signatures */
34 MonoMethodSignature *sig;
35 MonoGenericContext context;
36 } MonoInflatedMethodSignature;
38 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container, gboolean transient,
39 const char *ptr, const char **rptr);
41 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
42 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
43 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
44 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
45 gboolean signature_only);
46 static void free_generic_inst (MonoGenericInst *ginst);
47 static void free_generic_class (MonoGenericClass *ginst);
48 static void free_inflated_method (MonoMethodInflated *method);
49 static void free_inflated_signature (MonoInflatedMethodSignature *sig);
50 static void mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva, MonoMarshalSpec **marshal_spec, gboolean alloc_from_image);
53 * This enumeration is used to describe the data types in the metadata
64 /* Index into Blob heap */
67 /* Index into String heap */
73 /* Pointer into a table */
76 /* HasConstant:Parent pointer (Param, Field or Property) */
79 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
82 /* CustomAttributeType encoded index */
85 /* HasDeclSecurity index: TypeDef Method or Assembly */
88 /* Implementation coded index: File, Export AssemblyRef */
91 /* HasFieldMarshal coded index: Field or Param table */
94 /* MemberForwardedIndex: Field or Method */
97 /* TypeDefOrRef coded index: typedef, typeref, typespec */
100 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
103 /* MethodDefOrRef coded index: Method or Member Ref table */
106 /* HasSemantic coded index: Event or Property */
109 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
113 const static unsigned char TableSchemas [] = {
114 #define ASSEMBLY_SCHEMA_OFFSET 0
115 MONO_MT_UINT32, /* "HashId" }, */
116 MONO_MT_UINT16, /* "Major" }, */
117 MONO_MT_UINT16, /* "Minor" }, */
118 MONO_MT_UINT16, /* "BuildNumber" }, */
119 MONO_MT_UINT16, /* "RevisionNumber" }, */
120 MONO_MT_UINT32, /* "Flags" }, */
121 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
122 MONO_MT_STRING_IDX, /* "Name" }, */
123 MONO_MT_STRING_IDX, /* "Culture" }, */
126 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
127 MONO_MT_UINT32, /* "OSPlatformID" }, */
128 MONO_MT_UINT32, /* "OSMajor" }, */
129 MONO_MT_UINT32, /* "OSMinor" }, */
132 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
133 MONO_MT_UINT32, /* "Processor" }, */
136 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
137 MONO_MT_UINT16, /* "Major" }, */
138 MONO_MT_UINT16, /* "Minor" }, */
139 MONO_MT_UINT16, /* "Build" }, */
140 MONO_MT_UINT16, /* "Revision" }, */
141 MONO_MT_UINT32, /* "Flags" }, */
142 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
143 MONO_MT_STRING_IDX, /* "Name" }, */
144 MONO_MT_STRING_IDX, /* "Culture" }, */
145 MONO_MT_BLOB_IDX, /* "HashValue" }, */
148 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
149 MONO_MT_UINT32, /* "OSPlatformID" }, */
150 MONO_MT_UINT32, /* "OSMajorVersion" }, */
151 MONO_MT_UINT32, /* "OSMinorVersion" }, */
152 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
155 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
156 MONO_MT_UINT32, /* "Processor" }, */
157 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
160 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
161 MONO_MT_UINT16, /* "PackingSize" }, */
162 MONO_MT_UINT32, /* "ClassSize" }, */
163 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
166 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
167 MONO_MT_UINT8, /* "Type" }, */
168 MONO_MT_UINT8, /* "PaddingZero" }, */
169 MONO_MT_CONST_IDX, /* "Parent" }, */
170 MONO_MT_BLOB_IDX, /* "Value" }, */
173 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
174 MONO_MT_HASCAT_IDX, /* "Parent" }, */
175 MONO_MT_CAT_IDX, /* "Type" }, */
176 MONO_MT_BLOB_IDX, /* "Value" }, */
179 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
180 MONO_MT_UINT16, /* "Action" }, */
181 MONO_MT_HASDEC_IDX, /* "Parent" }, */
182 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
185 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
186 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
187 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
190 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
191 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
192 MONO_MT_STRING_IDX, /* "Name" }, */
193 MONO_MT_TDOR_IDX, /* "EventType" }, TypeDef or TypeRef or TypeSpec */
196 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
197 MONO_MT_TABLE_IDX, /* "Event" }, */
200 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
201 MONO_MT_UINT32, /* "Flags" }, */
202 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
203 MONO_MT_STRING_IDX, /* "TypeName" }, */
204 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
205 MONO_MT_IMPL_IDX, /* "Implementation" }, */
208 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
209 MONO_MT_UINT16, /* "Flags" }, */
210 MONO_MT_STRING_IDX, /* "Name" }, */
211 MONO_MT_BLOB_IDX, /* "Signature" }, */
214 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
215 MONO_MT_UINT32, /* "Offset" }, */
216 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
219 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
220 MONO_MT_HFM_IDX, /* "Parent" }, */
221 MONO_MT_BLOB_IDX, /* "NativeType" }, */
224 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
225 MONO_MT_UINT32, /* "RVA" }, */
226 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
229 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
230 MONO_MT_TABLE_IDX, /* "Field" }, */
233 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
234 MONO_MT_UINT32, /* "Flags" }, */
235 MONO_MT_STRING_IDX, /* "Name" }, */
236 MONO_MT_BLOB_IDX, /* "Value" }, */
239 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
240 MONO_MT_UINT16, /* "MappingFlag" }, */
241 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
242 MONO_MT_STRING_IDX, /* "ImportName" }, */
243 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
246 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
247 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
248 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
251 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
252 MONO_MT_UINT32, /* "Offset" }, */
253 MONO_MT_UINT32, /* "Flags" }, */
254 MONO_MT_STRING_IDX, /* "Name" }, */
255 MONO_MT_IMPL_IDX, /* "Implementation" }, */
258 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
259 MONO_MT_MRP_IDX, /* "Class" }, */
260 MONO_MT_STRING_IDX, /* "Name" }, */
261 MONO_MT_BLOB_IDX, /* "Signature" }, */
264 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
265 MONO_MT_UINT32, /* "RVA" }, */
266 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
267 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
268 MONO_MT_STRING_IDX, /* "Name" }, */
269 MONO_MT_BLOB_IDX, /* "Signature" }, */
270 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
273 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
274 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
275 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
276 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
279 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
280 MONO_MT_UINT16, /* "MethodSemantic" }, */
281 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
282 MONO_MT_HS_IDX, /* "Association" }, */
285 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
286 MONO_MT_TABLE_IDX, /* "Method" }, */
289 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
290 MONO_MT_UINT16, /* "Generation" }, */
291 MONO_MT_STRING_IDX, /* "Name" }, */
292 MONO_MT_GUID_IDX, /* "MVID" }, */
293 MONO_MT_GUID_IDX, /* "EncID" }, */
294 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
297 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
298 MONO_MT_STRING_IDX, /* "Name" }, */
301 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
302 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
303 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
306 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
307 MONO_MT_UINT16, /* "Flags" }, */
308 MONO_MT_UINT16, /* "Sequence" }, */
309 MONO_MT_STRING_IDX, /* "Name" }, */
312 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
313 MONO_MT_TABLE_IDX, /* "Param" }, */
316 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
317 MONO_MT_UINT16, /* "Flags" }, */
318 MONO_MT_STRING_IDX, /* "Name" }, */
319 MONO_MT_BLOB_IDX, /* "Type" }, */
322 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
323 MONO_MT_TABLE_IDX, /* "Property" }, */
326 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
327 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
328 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
331 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
332 MONO_MT_BLOB_IDX, /* "Signature" }, */
335 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
336 MONO_MT_UINT32, /* "Flags" }, */
337 MONO_MT_STRING_IDX, /* "Name" }, */
338 MONO_MT_STRING_IDX, /* "Namespace" }, */
339 MONO_MT_TDOR_IDX, /* "Extends" }, */
340 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
341 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
344 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
345 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
346 MONO_MT_STRING_IDX, /* "Name" }, */
347 MONO_MT_STRING_IDX, /* "Namespace" }, */
350 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
351 MONO_MT_BLOB_IDX, /* "Signature" }, */
354 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
355 MONO_MT_UINT16, /* "Number" }, */
356 MONO_MT_UINT16, /* "Flags" }, */
357 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
358 MONO_MT_STRING_IDX, /* "Name" }, */
361 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
362 MONO_MT_MDOR_IDX, /* "Method" }, */
363 MONO_MT_BLOB_IDX, /* "Signature" }, */
366 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
367 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
368 MONO_MT_TDOR_IDX, /* "Constraint" }, */
371 #define NULL_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
375 /* Must be the same order as MONO_TABLE_* */
376 const static unsigned char
377 table_description [] = {
378 MODULE_SCHEMA_OFFSET,
379 TYPEREF_SCHEMA_OFFSET,
380 TYPEDEF_SCHEMA_OFFSET,
381 FIELD_POINTER_SCHEMA_OFFSET,
383 METHOD_POINTER_SCHEMA_OFFSET,
384 METHOD_SCHEMA_OFFSET,
385 PARAM_POINTER_SCHEMA_OFFSET,
387 IFACEMAP_SCHEMA_OFFSET,
388 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
389 CONSTANT_SCHEMA_OFFSET,
390 CUSTOM_ATTR_SCHEMA_OFFSET,
391 FIELD_MARSHAL_SCHEMA_OFFSET,
392 DECL_SEC_SCHEMA_OFFSET,
393 CLASS_LAYOUT_SCHEMA_OFFSET,
394 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
395 STDALON_SIG_SCHEMA_OFFSET,
396 EVENTMAP_SCHEMA_OFFSET,
397 EVENT_POINTER_SCHEMA_OFFSET,
399 PROPERTY_MAP_SCHEMA_OFFSET,
400 PROPERTY_POINTER_SCHEMA_OFFSET,
401 PROPERTY_SCHEMA_OFFSET,
402 METHOD_SEMA_SCHEMA_OFFSET,
403 METHOD_IMPL_SCHEMA_OFFSET,
404 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
405 TYPESPEC_SCHEMA_OFFSET,
406 IMPLMAP_SCHEMA_OFFSET,
407 FIELD_RVA_SCHEMA_OFFSET,
410 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
411 ASSEMBLYPROC_SCHEMA_OFFSET,
412 ASSEMBLYOS_SCHEMA_OFFSET,
413 ASSEMBLYREF_SCHEMA_OFFSET,
414 ASSEMBLYREFPROC_SCHEMA_OFFSET,
415 ASSEMBLYREFOS_SCHEMA_OFFSET,
417 EXPORTED_TYPE_SCHEMA_OFFSET,
418 MANIFEST_SCHEMA_OFFSET,
419 NESTED_CLASS_SCHEMA_OFFSET,
420 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
421 METHOD_SPEC_SCHEMA_OFFSET,
422 GEN_CONSTRAINT_SCHEMA_OFFSET
425 #ifdef HAVE_ARRAY_ELEM_INIT
426 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
427 #define MSGSTRFIELD1(line) str##line
428 static const struct msgstr_t {
429 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
430 #include "mono/cil/tables.def"
433 #define TABLEDEF(a,b) b,
434 #include "mono/cil/tables.def"
437 static const gint16 tableidx [] = {
438 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
439 #include "mono/cil/tables.def"
444 #define TABLEDEF(a,b) b,
445 static const char* const
446 mono_tables_names [] = {
447 #include "mono/cil/tables.def"
454 * mono_meta_table_name:
455 * @table: table index
457 * Returns the name of the given ECMA metadata logical format table
458 * as described in ECMA 335, Partition II, Section 22.
460 * Returns: the name for the @table index
463 mono_meta_table_name (int table)
465 if ((table < 0) || (table > MONO_TABLE_LAST))
468 #ifdef HAVE_ARRAY_ELEM_INIT
469 return (const char*)&tablestr + tableidx [table];
471 return mono_tables_names [table];
475 /* The guy who wrote the spec for this should not be allowed near a
478 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
479 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
480 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
481 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
482 inverse of this mapping.
485 #define rtsize(s,b) (((s) < (1 << (b)) ? 2 : 4))
486 #define idx_size(tableidx) (meta->tables [(tableidx)].rows < 65536 ? 2 : 4)
488 /* Reference: Partition II - 23.2.6 */
490 * mono_metadata_compute_size:
491 * @meta: metadata context
492 * @tableindex: metadata table number
493 * @result_bitfield: pointer to guint32 where to store additional info
495 * mono_metadata_compute_size() computes the lenght in bytes of a single
496 * row in a metadata table. The size of each column is encoded in the
497 * @result_bitfield return value along with the number of columns in the table.
498 * the resulting bitfield should be handed to the mono_metadata_table_size()
499 * and mono_metadata_table_count() macros.
500 * This is a Mono runtime internal only function.
503 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
505 guint32 bitfield = 0;
506 int size = 0, field_size = 0;
509 const unsigned char *description = TableSchemas + table_description [tableindex];
511 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
514 field_size = 4; break;
517 field_size = 2; break;
520 field_size = 1; break;
522 case MONO_MT_BLOB_IDX:
523 field_size = meta->idx_blob_wide ? 4 : 2; break;
525 case MONO_MT_STRING_IDX:
526 field_size = meta->idx_string_wide ? 4 : 2; break;
528 case MONO_MT_GUID_IDX:
529 field_size = meta->idx_guid_wide ? 4 : 2; break;
531 case MONO_MT_TABLE_IDX:
532 /* Uhm, a table index can point to other tables besides the current one
533 * so, it's not correct to use the rowcount of the current table to
534 * get the size for this column - lupus
536 switch (tableindex) {
537 case MONO_TABLE_ASSEMBLYREFOS:
539 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
540 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
542 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
543 case MONO_TABLE_CLASSLAYOUT:
545 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
546 case MONO_TABLE_EVENTMAP:
547 g_assert (i == 0 || i == 1);
548 field_size = i ? idx_size (MONO_TABLE_EVENT):
549 idx_size(MONO_TABLE_TYPEDEF);
551 case MONO_TABLE_EVENT_POINTER:
553 field_size = idx_size (MONO_TABLE_EVENT); break;
554 case MONO_TABLE_EXPORTEDTYPE:
556 /* the index is in another metadata file, so it must be 4 */
557 field_size = 4; break;
558 case MONO_TABLE_FIELDLAYOUT:
560 field_size = idx_size (MONO_TABLE_FIELD); break;
561 case MONO_TABLE_FIELDRVA:
563 field_size = idx_size (MONO_TABLE_FIELD); break;
564 case MONO_TABLE_FIELD_POINTER:
566 field_size = idx_size (MONO_TABLE_FIELD); break;
567 case MONO_TABLE_IMPLMAP:
569 field_size = idx_size (MONO_TABLE_MODULEREF); break;
570 case MONO_TABLE_INTERFACEIMPL:
572 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
573 case MONO_TABLE_METHOD:
575 field_size = idx_size (MONO_TABLE_PARAM); break;
576 case MONO_TABLE_METHODIMPL:
578 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
579 case MONO_TABLE_METHODSEMANTICS:
581 field_size = idx_size (MONO_TABLE_METHOD); break;
582 case MONO_TABLE_METHOD_POINTER:
584 field_size = idx_size (MONO_TABLE_METHOD); break;
585 case MONO_TABLE_NESTEDCLASS:
586 g_assert (i == 0 || i == 1);
587 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
588 case MONO_TABLE_PARAM_POINTER:
590 field_size = idx_size (MONO_TABLE_PARAM); break;
591 case MONO_TABLE_PROPERTYMAP:
592 g_assert (i == 0 || i == 1);
593 field_size = i ? idx_size (MONO_TABLE_PROPERTY):
594 idx_size(MONO_TABLE_TYPEDEF);
596 case MONO_TABLE_PROPERTY_POINTER:
598 field_size = idx_size (MONO_TABLE_PROPERTY); break;
599 case MONO_TABLE_TYPEDEF:
600 g_assert (i == 4 || i == 5);
601 field_size = i == 4 ? idx_size (MONO_TABLE_FIELD):
602 idx_size(MONO_TABLE_METHOD);
604 case MONO_TABLE_GENERICPARAM:
606 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
607 /*This is a coded token for 2 tables, so takes 1 bit */
608 field_size = rtsize (n, 16 - MONO_TYPEORMETHOD_BITS);
610 case MONO_TABLE_GENERICPARAMCONSTRAINT:
612 field_size = idx_size (MONO_TABLE_GENERICPARAM);
616 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
621 * HasConstant: ParamDef, FieldDef, Property
623 case MONO_MT_CONST_IDX:
624 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
625 meta->tables [MONO_TABLE_FIELD].rows);
626 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
628 /* 2 bits to encode tag */
629 field_size = rtsize (n, 16-2);
633 * HasCustomAttribute: points to any table but
636 case MONO_MT_HASCAT_IDX:
638 * We believe that since the signature and
639 * permission are indexing the Blob heap,
640 * we should consider the blob size first
642 /* I'm not a believer - lupus
643 if (meta->idx_blob_wide){
648 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
649 meta->tables [MONO_TABLE_FIELD].rows);
650 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
651 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
652 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
653 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
654 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
655 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
656 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
657 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
658 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
659 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
660 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
661 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
662 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
663 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
664 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
665 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
666 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
668 /* 5 bits to encode */
669 field_size = rtsize (n, 16-5);
673 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
674 * MemberRef and String.
676 case MONO_MT_CAT_IDX:
677 /* String is a heap, if it is wide, we know the size */
679 if (meta->idx_string_wide){
684 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
685 meta->tables [MONO_TABLE_TYPEDEF].rows);
686 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
687 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
689 /* 3 bits to encode */
690 field_size = rtsize (n, 16-3);
694 * HasDeclSecurity: Typedef, MethodDef, Assembly
696 case MONO_MT_HASDEC_IDX:
697 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
698 meta->tables [MONO_TABLE_METHOD].rows);
699 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
701 /* 2 bits to encode */
702 field_size = rtsize (n, 16-2);
706 * Implementation: File, AssemblyRef, ExportedType
708 case MONO_MT_IMPL_IDX:
709 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
710 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
711 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
713 /* 2 bits to encode tag */
714 field_size = rtsize (n, 16-2);
718 * HasFieldMarshall: FieldDef, ParamDef
720 case MONO_MT_HFM_IDX:
721 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
722 meta->tables [MONO_TABLE_PARAM].rows);
724 /* 1 bit used to encode tag */
725 field_size = rtsize (n, 16-1);
729 * MemberForwarded: FieldDef, MethodDef
732 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
733 meta->tables [MONO_TABLE_METHOD].rows);
735 /* 1 bit used to encode tag */
736 field_size = rtsize (n, 16-1);
740 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
742 * It is TypeDef, _TypeRef_, TypeSpec, instead.
744 case MONO_MT_TDOR_IDX:
745 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
746 meta->tables [MONO_TABLE_TYPEREF].rows);
747 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
749 /* 2 bits to encode */
750 field_size = rtsize (n, 16-2);
754 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
756 case MONO_MT_MRP_IDX:
757 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
758 meta->tables [MONO_TABLE_TYPEREF].rows);
759 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
760 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
761 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
763 /* 3 bits to encode */
764 field_size = rtsize (n, 16 - 3);
768 * MethodDefOrRef: MethodDef, MemberRef
770 case MONO_MT_MDOR_IDX:
771 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
772 meta->tables [MONO_TABLE_MEMBERREF].rows);
774 /* 1 bit used to encode tag */
775 field_size = rtsize (n, 16-1);
779 * HasSemantics: Property, Event
782 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
783 meta->tables [MONO_TABLE_EVENT].rows);
785 /* 1 bit used to encode tag */
786 field_size = rtsize (n, 16-1);
790 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
793 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
794 meta->tables [MONO_TABLE_MODULEREF].rows);
795 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
796 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
798 /* 2 bits used to encode tag (ECMA spec claims 3) */
799 field_size = rtsize (n, 16 - 2);
804 * encode field size as follows (we just need to
811 bitfield |= (field_size-1) << shift;
814 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
817 *result_bitfield = (i << 24) | bitfield;
822 * mono_metadata_compute_table_bases:
823 * @meta: metadata context to compute table values
825 * Computes the table bases for the metadata structure.
826 * This is an internal function used by the image loader code.
829 mono_metadata_compute_table_bases (MonoImage *meta)
832 const char *base = meta->tables_base;
834 for (i = 0; i < MONO_TABLE_NUM; i++) {
835 MonoTableInfo *table = &meta->tables [i];
836 if (table->rows == 0)
839 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
841 base += table->rows * table->row_size;
846 * mono_metadata_locate:
847 * @meta: metadata context
848 * @table: table code.
849 * @idx: index of element to retrieve from @table.
851 * Returns: a pointer to the @idx element in the metadata table
852 * whose code is @table.
855 mono_metadata_locate (MonoImage *meta, int table, int idx)
857 /* idx == 0 refers always to NULL */
858 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
860 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
864 * mono_metadata_locate_token:
865 * @meta: metadata context
866 * @token: metadata token
868 * Returns: a pointer to the data in the metadata represented by the
872 mono_metadata_locate_token (MonoImage *meta, guint32 token)
874 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
878 * mono_metadata_string_heap:
879 * @meta: metadata context
880 * @index: index into the string heap.
882 * Returns: an in-memory pointer to the @index in the string heap.
885 mono_metadata_string_heap (MonoImage *meta, guint32 index)
887 g_assert (index < meta->heap_strings.size);
888 g_return_val_if_fail (index < meta->heap_strings.size, "");
889 return meta->heap_strings.data + index;
893 * mono_metadata_user_string:
894 * @meta: metadata context
895 * @index: index into the user string heap.
897 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
900 mono_metadata_user_string (MonoImage *meta, guint32 index)
902 g_assert (index < meta->heap_us.size);
903 g_return_val_if_fail (index < meta->heap_us.size, "");
904 return meta->heap_us.data + index;
908 * mono_metadata_blob_heap:
909 * @meta: metadata context
910 * @index: index into the blob.
912 * Returns: an in-memory pointer to the @index in the Blob heap.
915 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
917 g_assert (index < meta->heap_blob.size);
918 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
919 return meta->heap_blob.data + index;
923 * mono_metadata_guid_heap:
924 * @meta: metadata context
925 * @index: index into the guid heap.
927 * Returns: an in-memory pointer to the @index in the guid heap.
930 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
933 index *= 16; /* adjust for guid size and 1-based index */
934 g_return_val_if_fail (index < meta->heap_guid.size, "");
935 return meta->heap_guid.data + index;
938 static const unsigned char *
939 dword_align (const unsigned char *ptr)
941 #if SIZEOF_VOID_P == 8
942 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
944 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
949 * mono_metadata_decode_row:
950 * @t: table to extract information from.
951 * @idx: index in table.
952 * @res: array of @res_size cols to store the results in
954 * This decompresses the metadata element @idx in table @t
955 * into the guint32 @res array that has res_size elements
958 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
960 guint32 bitfield = t->size_bitfield;
961 int i, count = mono_metadata_table_count (bitfield);
964 g_assert (idx < t->rows);
966 data = t->base + idx * t->row_size;
968 g_assert (res_size == count);
970 for (i = 0; i < count; i++) {
971 int n = mono_metadata_table_size (bitfield, i);
975 res [i] = *data; break;
977 res [i] = read16 (data); break;
979 res [i] = read32 (data); break;
981 g_assert_not_reached ();
988 * mono_metadata_decode_row_col:
989 * @t: table to extract information from.
990 * @idx: index for row in table.
991 * @col: column in the row.
993 * This function returns the value of column @col from the @idx
994 * row in the table @t.
997 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
999 guint32 bitfield = t->size_bitfield;
1001 register const char *data;
1004 g_assert (idx < t->rows);
1005 g_assert (col < mono_metadata_table_count (bitfield));
1006 data = t->base + idx * t->row_size;
1008 n = mono_metadata_table_size (bitfield, 0);
1009 for (i = 0; i < col; ++i) {
1011 n = mono_metadata_table_size (bitfield, i + 1);
1017 return read16 (data);
1019 return read32 (data);
1021 g_assert_not_reached ();
1027 * mono_metadata_decode_blob_size:
1028 * @ptr: pointer to a blob object
1029 * @rptr: the new position of the pointer
1031 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1033 * Returns: the size of the blob object
1036 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1038 const unsigned char *ptr = (const unsigned char *)xptr;
1041 if ((*ptr & 0x80) == 0){
1042 size = ptr [0] & 0x7f;
1044 } else if ((*ptr & 0x40) == 0){
1045 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1048 size = ((ptr [0] & 0x1f) << 24) +
1060 * mono_metadata_decode_value:
1061 * @ptr: pointer to decode from
1062 * @rptr: the new position of the pointer
1064 * This routine decompresses 32-bit values as specified in the "Blob and
1065 * Signature" section (22.2)
1067 * Returns: the decoded value
1070 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1072 const unsigned char *ptr = (const unsigned char *) _ptr;
1073 unsigned char b = *ptr;
1076 if ((b & 0x80) == 0){
1079 } else if ((b & 0x40) == 0){
1080 len = ((b & 0x3f) << 8 | ptr [1]);
1083 len = ((b & 0x1f) << 24) |
1096 * mono_metadata_decode_signed_value:
1097 * @ptr: pointer to decode from
1098 * @rptr: the new position of the pointer
1100 * This routine decompresses 32-bit signed values
1101 * (not specified in the spec)
1103 * Returns: the decoded value
1106 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1108 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1109 gint32 ival = uval >> 1;
1112 /* ival is a truncated 2's complement negative number. */
1114 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1117 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1118 return ival - 0x2000;
1119 if (ival < 0x10000000)
1120 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1121 return ival - 0x10000000;
1122 g_assert (ival < 0x20000000);
1123 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1124 return ival - 0x20000000;
1128 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1129 * using the *Ptr tables in uncompressed metadata, if they are available.
1131 * FIXME: The caller is not forced to call this function, which is error-prone, since
1132 * forgetting to call it would only show up as a bug on uncompressed metadata.
1135 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1137 if (!image->uncompressed_metadata)
1141 case MONO_TABLE_METHOD:
1142 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1143 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1146 case MONO_TABLE_FIELD:
1147 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1148 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1151 case MONO_TABLE_EVENT:
1152 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1153 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1156 case MONO_TABLE_PROPERTY:
1157 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1158 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1161 case MONO_TABLE_PARAM:
1162 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1163 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1172 * mono_metadata_decode_table_row:
1174 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1175 * uncompressed metadata into account, so it should be used to access the
1176 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1177 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1180 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1182 if (image->uncompressed_metadata)
1183 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1185 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1189 * mono_metadata_decode_table_row_col:
1191 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1192 * uncompressed metadata into account, so it should be used to access the
1193 * Method, Field, Param and Event tables.
1195 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1197 if (image->uncompressed_metadata)
1198 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1200 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1204 * mono_metadata_parse_typedef_or_ref:
1205 * @m: a metadata context.
1206 * @ptr: a pointer to an encoded TypedefOrRef in @m
1207 * @rptr: pointer updated to match the end of the decoded stream
1209 * Returns: a token valid in the @m metadata decoded from
1210 * the compressed representation.
1213 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1216 token = mono_metadata_decode_value (ptr, &ptr);
1219 return mono_metadata_token_from_dor (token);
1223 * mono_metadata_parse_custom_mod:
1224 * @m: a metadata context.
1225 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1226 * @ptr: a pointer to (possibly) the start of a custom modifier list
1227 * @rptr: pointer updated to match the end of the decoded stream
1229 * Checks if @ptr points to a type custom modifier compressed representation.
1231 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1234 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1236 MonoCustomMod local;
1237 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1240 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1241 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1248 * mono_metadata_parse_array_internal:
1249 * @m: a metadata context.
1250 * @transient: whenever to allocate data from the heap
1251 * @ptr: a pointer to an encoded array description.
1252 * @rptr: pointer updated to match the end of the decoded stream
1254 * Decodes the compressed array description found in the metadata @m at @ptr.
1256 * Returns: a #MonoArrayType structure describing the array type
1257 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1258 * on the value of @transient.
1260 * LOCKING: Acquires the loader lock
1262 static MonoArrayType *
1263 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1264 gboolean transient, const char *ptr, const char **rptr)
1267 MonoArrayType *array;
1270 array = transient ? g_malloc0 (sizeof (MonoArrayType)) : mono_image_alloc0 (m, sizeof (MonoArrayType));
1271 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1274 array->eklass = mono_class_from_mono_type (etype);
1275 array->rank = mono_metadata_decode_value (ptr, &ptr);
1277 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1278 if (array->numsizes)
1279 array->sizes = transient ? g_malloc0 (sizeof (int) * array->numsizes) : mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1280 for (i = 0; i < array->numsizes; ++i)
1281 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1283 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1284 if (array->numlobounds)
1285 array->lobounds = transient ? g_malloc0 (sizeof (int) * array->numlobounds) : mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1286 for (i = 0; i < array->numlobounds; ++i)
1287 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1295 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1296 const char *ptr, const char **rptr)
1298 return mono_metadata_parse_array_internal (m, container, FALSE, ptr, rptr);
1302 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1304 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1308 * mono_metadata_free_array:
1309 * @array: array description
1311 * Frees the array description returned from mono_metadata_parse_array().
1314 mono_metadata_free_array (MonoArrayType *array)
1316 g_free (array->sizes);
1317 g_free (array->lobounds);
1322 * need to add common field and param attributes combinations:
1325 * public static literal
1328 * private static literal
1330 static const MonoType
1332 /* data, attrs, type, nmods, byref, pinned */
1333 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1334 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1335 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1336 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1337 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1338 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1339 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1340 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1341 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1342 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1343 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1344 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1345 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1346 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1347 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1348 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1349 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1350 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1351 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1352 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1353 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1354 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1355 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1356 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1357 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1358 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1359 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1360 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1361 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1362 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1363 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1364 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1365 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1366 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1369 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1371 static GHashTable *type_cache = NULL;
1372 static int next_generic_inst_id = 0;
1374 /* Protected by image_sets_mutex */
1375 static MonoImageSet *mscorlib_image_set;
1376 /* Protected by image_sets_mutex */
1377 static GPtrArray *image_sets;
1378 static mono_mutex_t image_sets_mutex;
1380 static guint mono_generic_class_hash (gconstpointer data);
1383 * MonoTypes with modifies are never cached, so we never check or use that field.
1386 mono_type_hash (gconstpointer data)
1388 const MonoType *type = (const MonoType *) data;
1389 if (type->type == MONO_TYPE_GENERICINST)
1390 return mono_generic_class_hash (type->data.generic_class);
1392 return type->type | (type->byref << 8) | (type->attrs << 9);
1396 mono_type_equal (gconstpointer ka, gconstpointer kb)
1398 const MonoType *a = (const MonoType *) ka;
1399 const MonoType *b = (const MonoType *) kb;
1401 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1403 /* need other checks */
1408 mono_metadata_generic_inst_hash (gconstpointer data)
1410 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1414 for (i = 0; i < ginst->type_argc; ++i) {
1416 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1419 return hash ^ (ginst->is_open << 8);
1423 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1427 #ifndef MONO_SMALL_CONFIG
1428 if (a->id && b->id) {
1431 if (!signature_only)
1436 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1438 for (i = 0; i < a->type_argc; ++i) {
1439 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1446 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1448 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1449 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1451 return mono_generic_inst_equal_full (a, b, FALSE);
1455 mono_generic_class_hash (gconstpointer data)
1457 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1458 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1461 hash += gclass->is_tb_open;
1462 hash += mono_metadata_generic_context_hash (&gclass->context);
1468 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1470 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1471 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1473 return _mono_metadata_generic_class_equal (a, b, FALSE);
1477 * mono_metadata_init:
1479 * Initialize the global variables of this module.
1480 * This is a Mono runtime internal function.
1483 mono_metadata_init (void)
1487 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1489 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1490 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1492 mono_mutex_init_recursive (&image_sets_mutex);
1496 * mono_metadata_cleanup:
1498 * Free all resources used by this module.
1499 * This is a Mono runtime internal function.
1502 mono_metadata_cleanup (void)
1504 g_hash_table_destroy (type_cache);
1506 g_ptr_array_free (image_sets, TRUE);
1508 mono_mutex_destroy (&image_sets_mutex);
1512 * mono_metadata_parse_type:
1513 * @m: metadata context
1514 * @mode: king of type that may be found at @ptr
1515 * @opt_attrs: optional attributes to store in the returned type
1516 * @ptr: pointer to the type representation
1517 * @rptr: pointer updated to match the end of the decoded stream
1518 * @transient: whenever to allocate the result from the heap or from a mempool
1520 * Decode a compressed type description found at @ptr in @m.
1521 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1522 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1523 * This function can be used to decode type descriptions in method signatures,
1524 * field signatures, locals signatures etc.
1526 * To parse a generic type, `generic_container' points to the current class'es
1527 * (the `generic_container' field in the MonoClass) or the current generic method's
1528 * (stored in image->property_hash) generic container.
1529 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1530 * this MonoGenericContainer.
1532 * LOCKING: Acquires the loader lock.
1534 * Returns: a #MonoType structure representing the decoded type.
1537 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1538 short opt_attrs, gboolean transient, const char *ptr, const char **rptr)
1540 MonoType *type, *cached;
1542 gboolean byref = FALSE;
1543 gboolean pinned = FALSE;
1544 const char *tmp_ptr;
1549 * According to the spec, custom modifiers should come before the byref
1550 * flag, but the IL produced by ilasm from the following signature:
1551 * object modopt(...) &
1552 * starts with a byref flag, followed by the modifiers. (bug #49802)
1553 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1554 * it would be better to treat byref as real type constructor instead of
1556 * Also, pinned should come before anything else, but some MSV++ produced
1557 * assemblies violate this (#bug 61990).
1560 /* Count the modifiers first */
1565 case MONO_TYPE_PINNED:
1566 case MONO_TYPE_BYREF:
1569 case MONO_TYPE_CMOD_REQD:
1570 case MONO_TYPE_CMOD_OPT:
1572 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1582 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1583 type = transient ? g_malloc0 (size) : mono_image_alloc0 (m, size);
1584 type->num_mods = count;
1586 g_warning ("got more than 64 modifiers in type");
1589 memset (type, 0, MONO_SIZEOF_TYPE);
1592 /* Parse pinned, byref and custom modifiers */
1597 case MONO_TYPE_PINNED:
1601 case MONO_TYPE_BYREF:
1605 case MONO_TYPE_CMOD_REQD:
1606 case MONO_TYPE_CMOD_OPT:
1607 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1615 type->attrs = opt_attrs;
1616 type->byref = byref;
1617 type->pinned = pinned ? 1 : 0;
1619 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr)) {
1626 if (!type->num_mods && !transient) {
1627 /* no need to free type here, because it is on the stack */
1628 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1629 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1631 /* Consider the case:
1633 class Foo<T> { class Bar {} }
1634 class Test : Foo<Test>.Bar {}
1636 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1637 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1639 We ensure that the MonoClass is in a state that we can canonicalize to:
1641 klass->byval_arg.data.klass == klass
1642 klass->this_arg.data.klass == klass
1644 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1646 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1647 of a MonoClass which currently holds the loader lock. 'type' is local.
1649 if (ret->data.klass == type->data.klass) {
1653 /* No need to use locking since nobody is modifying the hash table */
1654 if ((cached = g_hash_table_lookup (type_cache, type))) {
1659 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1661 if (type == &stype) {
1662 type = transient ? g_malloc (MONO_SIZEOF_TYPE) : mono_image_alloc (m, MONO_SIZEOF_TYPE);
1663 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1669 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1670 short opt_attrs, const char *ptr, const char **rptr)
1672 return mono_metadata_parse_type_internal (m, container, mode, opt_attrs, FALSE, ptr, rptr);
1676 * LOCKING: Acquires the loader lock.
1679 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1680 const char *ptr, const char **rptr)
1682 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1686 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1688 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1689 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1690 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1692 if (def < methodt->rows)
1693 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1695 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1697 for (i = param_index; i < lastp; ++i) {
1698 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1707 * mono_metadata_get_param_attrs:
1709 * @m The image to loader parameter attributes from
1710 * @def method def token (one based)
1711 * @param_count number of params to decode including the return value
1713 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1714 * returned memory needs to be freed by the caller. If all the param attributes are
1715 * 0, then NULL is returned.
1718 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1720 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1721 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1722 guint32 cols [MONO_PARAM_SIZE];
1723 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1726 if (def < methodt->rows)
1727 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1729 lastp = paramt->rows + 1;
1731 for (i = param_index; i < lastp; ++i) {
1732 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1733 if (cols [MONO_PARAM_FLAGS]) {
1735 pattrs = g_new0 (int, param_count);
1736 /* at runtime we just ignore this kind of malformed file:
1737 * the verifier can signal the error to the user
1739 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1741 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1749 * mono_metadata_parse_signature_full:
1750 * @image: metadata context
1751 * @generic_container: generic container
1752 * @toke: metadata token
1754 * Decode a method signature stored in the STANDALONESIG table
1756 * LOCKING: Assumes the loader lock is held.
1758 * Returns: a MonoMethodSignature describing the signature.
1760 MonoMethodSignature*
1761 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1764 MonoMethodSignature *ret;
1765 MonoTableInfo *tables = image->tables;
1766 guint32 idx = mono_metadata_token_index (token);
1770 if (image_is_dynamic (image))
1771 return mono_lookup_dynamic_token (image, token, NULL);
1773 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1775 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1777 ptr = mono_metadata_blob_heap (image, sig);
1778 mono_metadata_decode_blob_size (ptr, &ptr);
1780 ret = mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL, &error);
1782 mono_loader_set_error_from_mono_error (&error);
1783 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1789 * mono_metadata_parse_signature:
1790 * @image: metadata context
1791 * @toke: metadata token
1793 * Decode a method signature stored in the STANDALONESIG table
1795 * Returns: a MonoMethodSignature describing the signature.
1797 MonoMethodSignature*
1798 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1800 return mono_metadata_parse_signature_full (image, NULL, token);
1804 * mono_metadata_signature_alloc:
1805 * @image: metadata context
1806 * @nparmas: number of parameters in the signature
1808 * Allocate a MonoMethodSignature structure with the specified number of params.
1809 * The return type and the params types need to be filled later.
1810 * This is a Mono runtime internal function.
1812 * LOCKING: Assumes the loader lock is held.
1814 * Returns: the new MonoMethodSignature structure.
1816 MonoMethodSignature*
1817 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1819 MonoMethodSignature *sig;
1821 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1822 sig->param_count = nparams;
1823 sig->sentinelpos = -1;
1828 static MonoMethodSignature*
1829 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1832 MonoMethodSignature *ret;
1833 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1836 ret = mono_image_alloc (image, sigsize);
1838 ret = mono_mempool_alloc (mp, sigsize);
1840 ret = g_malloc (sigsize);
1842 memcpy (ret, sig, sigsize);
1846 MonoMethodSignature*
1847 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1849 return mono_metadata_signature_dup_internal (image, NULL, sig);
1852 /*The mempool is accessed without synchronization*/
1853 MonoMethodSignature*
1854 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1856 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1860 * mono_metadata_signature_dup:
1861 * @sig: method signature
1863 * Duplicate an existing MonoMethodSignature so it can be modified.
1864 * This is a Mono runtime internal function.
1866 * Returns: the new MonoMethodSignature structure.
1868 MonoMethodSignature*
1869 mono_metadata_signature_dup (MonoMethodSignature *sig)
1871 return mono_metadata_signature_dup_full (NULL, sig);
1875 * mono_metadata_signature_size:
1877 * Return the amount of memory allocated to SIG.
1880 mono_metadata_signature_size (MonoMethodSignature *sig)
1882 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1886 * mono_metadata_parse_method_signature:
1887 * @m: metadata context
1888 * @generic_container: generics container
1889 * @def: the MethodDef index or 0 for Ref signatures.
1890 * @ptr: pointer to the signature metadata representation
1891 * @rptr: pointer updated to match the end of the decoded stream
1893 * Decode a method signature stored at @ptr.
1894 * This is a Mono runtime internal function.
1896 * LOCKING: Assumes the loader lock is held.
1898 * Returns: a MonoMethodSignature describing the signature.
1900 MonoMethodSignature *
1901 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1902 int def, const char *ptr, const char **rptr, MonoError *error)
1904 MonoMethodSignature *method;
1905 int i, *pattrs = NULL;
1906 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1907 guint32 gen_param_count = 0;
1908 gboolean is_open = FALSE;
1910 mono_error_init (error);
1913 gen_param_count = 1;
1918 call_convention = *ptr & 0x0F;
1920 if (gen_param_count)
1921 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1922 param_count = mono_metadata_decode_value (ptr, &ptr);
1925 pattrs = mono_metadata_get_param_attrs (m, def, param_count + 1); /*Must be + 1 since signature's param count doesn't account for the return value */
1927 method = mono_metadata_signature_alloc (m, param_count);
1928 method->hasthis = hasthis;
1929 method->explicit_this = explicit_this;
1930 method->call_convention = call_convention;
1931 method->generic_param_count = gen_param_count;
1933 if (call_convention != 0xa) {
1934 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1936 mono_metadata_free_method_signature (method);
1938 if (mono_loader_get_last_error ())
1939 mono_error_set_from_loader_error (error);
1941 mono_error_set_bad_image (error, m, "Could not parse return type signature");
1944 is_open = mono_class_is_open_constructed_type (method->ret);
1947 for (i = 0; i < method->param_count; ++i) {
1948 if (*ptr == MONO_TYPE_SENTINEL) {
1949 if (method->call_convention != MONO_CALL_VARARG || def) {
1950 g_assert (!mono_loader_get_last_error ());
1951 mono_error_set_bad_image (error, m, "Found sentinel for methoddef or no vararg");
1955 if (method->sentinelpos >= 0) {
1956 g_assert (!mono_loader_get_last_error ());
1957 mono_error_set_bad_image (error, m, "Found sentinel twice in the same signature.");
1961 method->sentinelpos = i;
1964 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1965 if (!method->params [i]) {
1966 if (mono_loader_get_last_error ())
1967 mono_error_set_from_loader_error (error);
1969 mono_error_set_bad_image (error, m, "Could not parse type argument %d on method signature", i);
1970 mono_metadata_free_method_signature (method);
1975 is_open = mono_class_is_open_constructed_type (method->params [i]);
1978 /* The sentinel could be missing if the caller does not pass any additional arguments */
1979 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1980 method->sentinelpos = method->param_count;
1982 method->has_type_parameters = is_open;
1984 if (def && (method->call_convention == MONO_CALL_VARARG))
1985 method->sentinelpos = method->param_count;
1992 * Add signature to a cache and increase ref count...
1995 g_assert (!mono_loader_get_last_error ());
2000 * mono_metadata_parse_method_signature:
2001 * @m: metadata context
2002 * @def: the MethodDef index or 0 for Ref signatures.
2003 * @ptr: pointer to the signature metadata representation
2004 * @rptr: pointer updated to match the end of the decoded stream
2006 * Decode a method signature stored at @ptr.
2007 * This is a Mono runtime internal function.
2009 * LOCKING: Assumes the loader lock is held.
2011 * Returns: a MonoMethodSignature describing the signature.
2013 MonoMethodSignature *
2014 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
2017 MonoMethodSignature *ret;
2018 ret = mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr, &error);
2020 mono_loader_set_error_from_mono_error (&error);
2021 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
2027 * mono_metadata_free_method_signature:
2028 * @sig: signature to destroy
2030 * Free the memory allocated in the signature @sig.
2031 * This method needs to be robust and work also on partially-built
2032 * signatures, so it does extra checks.
2035 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2037 /* Everything is allocated from mempools */
2041 mono_metadata_free_type (sig->ret);
2042 for (i = 0; i < sig->param_count; ++i) {
2043 if (sig->params [i])
2044 mono_metadata_free_type (sig->params [i]);
2050 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2054 /* Allocated in inflate_generic_signature () */
2056 mono_metadata_free_type (sig->ret);
2057 for (i = 0; i < sig->param_count; ++i) {
2058 if (sig->params [i])
2059 mono_metadata_free_type (sig->params [i]);
2065 inflated_method_equal (gconstpointer a, gconstpointer b)
2067 const MonoMethodInflated *ma = a;
2068 const MonoMethodInflated *mb = b;
2069 if (ma->declaring != mb->declaring)
2071 if (ma->method.method.is_mb_open != mb->method.method.is_mb_open)
2073 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2077 inflated_method_hash (gconstpointer a)
2079 const MonoMethodInflated *ma = a;
2080 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring)) + ma->method.method.is_mb_open;
2084 inflated_signature_equal (gconstpointer a, gconstpointer b)
2086 const MonoInflatedMethodSignature *sig1 = a;
2087 const MonoInflatedMethodSignature *sig2 = b;
2089 /* sig->sig is assumed to be canonized */
2090 if (sig1->sig != sig2->sig)
2092 /* The generic instances are canonized */
2093 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2097 inflated_signature_hash (gconstpointer a)
2099 const MonoInflatedMethodSignature *sig = a;
2101 /* sig->sig is assumed to be canonized */
2102 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2106 dump_ginst (MonoGenericInst *ginst)
2111 g_print ("Ginst: <");
2112 for (i = 0; i < ginst->type_argc; ++i) {
2115 name = mono_type_get_name (ginst->type_argv [i]);
2116 g_print ("%s", name);
2122 static gboolean type_in_image (MonoType *type, MonoImage *image);
2125 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2127 gpointer iter = NULL;
2130 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2131 if (type_in_image (p, image))
2134 return type_in_image (mono_signature_get_return_type (sig), image);
2138 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2142 for (i = 0; i < ginst->type_argc; ++i) {
2143 if (type_in_image (ginst->type_argv [i], image))
2151 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2153 return gclass->container_class->image == image ||
2154 ginst_in_image (gclass->context.class_inst, image);
2158 type_in_image (MonoType *type, MonoImage *image)
2161 switch (type->type) {
2162 case MONO_TYPE_GENERICINST:
2163 return gclass_in_image (type->data.generic_class, image);
2165 type = type->data.type;
2167 case MONO_TYPE_SZARRAY:
2168 type = &type->data.klass->byval_arg;
2170 case MONO_TYPE_ARRAY:
2171 type = &type->data.array->eklass->byval_arg;
2173 case MONO_TYPE_FNPTR:
2174 return signature_in_image (type->data.method, image);
2175 case MONO_TYPE_VAR: {
2176 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2178 g_assert (!container->is_method);
2180 * FIXME: The following check is here solely
2181 * for monodis, which uses the internal
2183 * mono_metadata_load_generic_params(). The
2184 * caller of that function needs to fill in
2185 * owner->klass or owner->method of the
2186 * returned struct, but monodis doesn't do
2187 * that. The image unloading depends on that,
2188 * however, so a crash results without this
2191 if (!container->owner.klass)
2192 return container->image == image;
2193 return container->owner.klass->image == image;
2195 return type->data.generic_param->image == image;
2198 case MONO_TYPE_MVAR: {
2199 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2200 if (type->data.generic_param->image == image)
2203 g_assert (container->is_method);
2204 if (!container->owner.method)
2205 /* RefEmit created generic param whose method is not finished */
2206 return container->image == image;
2207 return container->owner.method->klass->image == image;
2209 return type->data.generic_param->image == image;
2213 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2214 return image == mono_class_from_mono_type (type)->image;
2219 image_sets_lock (void)
2221 mono_mutex_lock (&image_sets_mutex);
2225 image_sets_unlock (void)
2227 mono_mutex_unlock (&image_sets_mutex);
2233 * Return a MonoImageSet representing the set of images in IMAGES.
2235 static MonoImageSet*
2236 get_image_set (MonoImage **images, int nimages)
2243 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2244 return mscorlib_image_set;
2246 /* Happens with empty generic instances */
2248 return mscorlib_image_set;
2253 image_sets = g_ptr_array_new ();
2255 if (images [0] == mono_defaults.corlib && nimages > 1)
2256 l = images [1]->image_sets;
2258 l = images [0]->image_sets;
2261 for (; l; l = l->next) {
2264 if (set->nimages == nimages) {
2265 for (j = 0; j < nimages; ++j) {
2266 for (k = 0; k < nimages; ++k)
2267 if (set->images [k] == images [j])
2281 set = g_new0 (MonoImageSet, 1);
2282 set->nimages = nimages;
2283 set->images = g_new0 (MonoImage*, nimages);
2284 mono_mutex_init_recursive (&set->lock);
2285 for (i = 0; i < nimages; ++i)
2286 set->images [i] = images [i];
2287 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2288 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2289 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2290 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2292 for (i = 0; i < nimages; ++i)
2293 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2295 g_ptr_array_add (image_sets, set);
2298 if (nimages == 1 && images [0] == mono_defaults.corlib) {
2299 mono_memory_barrier ();
2300 mscorlib_image_set = set;
2303 image_sets_unlock ();
2309 delete_image_set (MonoImageSet *set)
2313 g_hash_table_destroy (set->gclass_cache);
2314 g_hash_table_destroy (set->ginst_cache);
2315 g_hash_table_destroy (set->gmethod_cache);
2316 g_hash_table_destroy (set->gsignature_cache);
2320 for (i = 0; i < set->nimages; ++i)
2321 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2323 g_ptr_array_remove (image_sets, set);
2325 image_sets_unlock ();
2328 mono_mempool_destroy (set->mempool);
2329 g_free (set->images);
2330 mono_mutex_destroy (&set->lock);
2335 mono_image_set_lock (MonoImageSet *set)
2337 mono_mutex_lock (&set->lock);
2341 mono_image_set_unlock (MonoImageSet *set)
2343 mono_mutex_unlock (&set->lock);
2347 mono_image_set_alloc (MonoImageSet *set, guint size)
2351 mono_image_set_lock (set);
2353 set->mempool = mono_mempool_new_size (1024);
2354 res = mono_mempool_alloc (set->mempool, size);
2355 mono_image_set_unlock (set);
2361 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2365 mono_image_set_lock (set);
2367 set->mempool = mono_mempool_new_size (1024);
2368 res = mono_mempool_alloc0 (set->mempool, size);
2369 mono_image_set_unlock (set);
2375 mono_image_set_strdup (MonoImageSet *set, const char *s)
2379 mono_image_set_lock (set);
2381 set->mempool = mono_mempool_new_size (1024);
2382 res = mono_mempool_strdup (set->mempool, s);
2383 mono_image_set_unlock (set);
2389 * Structure used by the collect_..._images functions to store the image list.
2392 MonoImage *image_buf [64];
2394 int nimages, images_len;
2398 collect_data_init (CollectData *data)
2400 data->images = data->image_buf;
2401 data->images_len = 64;
2406 collect_data_free (CollectData *data)
2408 if (data->images != data->image_buf)
2409 g_free (data->images);
2413 enlarge_data (CollectData *data)
2415 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2416 MonoImage **d = g_new (MonoImage *, new_len);
2419 g_assert_not_reached ();
2420 memcpy (d, data->images, data->images_len);
2421 if (data->images != data->image_buf)
2422 g_free (data->images);
2424 data->images_len = new_len;
2428 add_image (MonoImage *image, CollectData *data)
2432 /* The arrays are small, so use a linear search instead of a hash table */
2433 for (i = 0; i < data->nimages; ++i)
2434 if (data->images [i] == image)
2437 if (data->nimages == data->images_len)
2438 enlarge_data (data);
2440 data->images [data->nimages ++] = image;
2444 collect_type_images (MonoType *type, CollectData *data);
2447 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2451 for (i = 0; i < ginst->type_argc; ++i) {
2452 collect_type_images (ginst->type_argv [i], data);
2457 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2459 add_image (gclass->container_class->image, data);
2460 if (gclass->context.class_inst)
2461 collect_ginst_images (gclass->context.class_inst, data);
2465 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2467 gpointer iter = NULL;
2470 collect_type_images (mono_signature_get_return_type (sig), data);
2471 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2472 collect_type_images (p, data);
2476 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2478 collect_signature_images (sig->sig, data);
2479 if (sig->context.class_inst)
2480 collect_ginst_images (sig->context.class_inst, data);
2481 if (sig->context.method_inst)
2482 collect_ginst_images (sig->context.method_inst, data);
2486 collect_method_images (MonoMethodInflated *method, CollectData *data)
2488 MonoMethod *m = method->declaring;
2490 add_image (method->declaring->klass->image, data);
2491 if (method->context.class_inst)
2492 collect_ginst_images (method->context.class_inst, data);
2493 if (method->context.method_inst)
2494 collect_ginst_images (method->context.method_inst, data);
2496 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2498 if (image_is_dynamic (m->klass->image))
2499 collect_signature_images (mono_method_signature (m), data);
2503 collect_type_images (MonoType *type, CollectData *data)
2506 switch (type->type) {
2507 case MONO_TYPE_GENERICINST:
2508 collect_gclass_images (type->data.generic_class, data);
2511 type = type->data.type;
2513 case MONO_TYPE_SZARRAY:
2514 type = &type->data.klass->byval_arg;
2516 case MONO_TYPE_ARRAY:
2517 type = &type->data.array->eklass->byval_arg;
2519 case MONO_TYPE_FNPTR:
2520 //return signature_in_image (type->data.method, image);
2521 g_assert_not_reached ();
2522 case MONO_TYPE_VAR: {
2523 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2525 g_assert (!container->is_method);
2527 * FIXME: The following check is here solely
2528 * for monodis, which uses the internal
2530 * mono_metadata_load_generic_params(). The
2531 * caller of that function needs to fill in
2532 * owner->klass or owner->method of the
2533 * returned struct, but monodis doesn't do
2534 * that. The image unloading depends on that,
2535 * however, so a crash results without this
2538 if (!container->owner.klass)
2539 add_image (container->image, data);
2541 add_image (container->owner.klass->image, data);
2543 add_image (type->data.generic_param->image, data);
2547 case MONO_TYPE_MVAR: {
2548 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2549 if (type->data.generic_param->image)
2550 add_image (type->data.generic_param->image, data);
2552 if (!container->owner.method) {
2553 /* RefEmit created generic param whose method is not finished */
2554 add_image (container->image, data);
2556 g_assert (container->is_method);
2557 add_image (container->owner.method->klass->image, data);
2560 add_image (type->data.generic_param->image, data);
2564 case MONO_TYPE_CLASS:
2565 case MONO_TYPE_VALUETYPE:
2566 add_image (mono_class_from_mono_type (type)->image, data);
2569 add_image (mono_defaults.corlib, data);
2576 } CleanForImageUserData;
2579 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2581 MonoGenericClass *gclass = key;
2582 CleanForImageUserData *user_data = data;
2584 g_assert (gclass_in_image (gclass, user_data->image));
2586 user_data->list = g_slist_prepend (user_data->list, gclass);
2591 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2593 MonoGenericInst *ginst = key;
2594 CleanForImageUserData *user_data = data;
2596 // This doesn't work during corlib compilation
2597 //g_assert (ginst_in_image (ginst, user_data->image));
2599 user_data->list = g_slist_prepend (user_data->list, ginst);
2604 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2606 MonoImage *image = data;
2607 MonoMethodInflated *method = key;
2610 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2611 g_assert (method->declaring->klass->image == image ||
2612 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2613 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2619 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2621 MonoImage *image = data;
2622 MonoInflatedMethodSignature *sig = key;
2624 return signature_in_image (sig->sig, image) ||
2625 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2626 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2630 check_gmethod (gpointer key, gpointer value, gpointer data)
2632 MonoMethodInflated *method = key;
2633 MonoImage *image = data;
2635 if (method->context.class_inst)
2636 g_assert (!ginst_in_image (method->context.class_inst, image));
2637 if (method->context.method_inst)
2638 g_assert (!ginst_in_image (method->context.method_inst, image));
2639 if (((MonoMethod*)method)->signature)
2640 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2646 * Run a consistency check on the image set data structures.
2648 static G_GNUC_UNUSED void
2649 check_image_sets (MonoImage *image)
2652 GSList *l = image->image_sets;
2657 for (i = 0; i < image_sets->len; ++i) {
2658 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2660 if (!g_slist_find (l, set)) {
2661 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2667 mono_metadata_clean_for_image (MonoImage *image)
2669 CleanForImageUserData ginst_data, gclass_data;
2670 GSList *l, *set_list;
2672 //check_image_sets (image);
2675 * The data structures could reference each other so we delete them in two phases.
2676 * This is required because of the hashing functions in gclass/ginst_cache.
2678 ginst_data.image = gclass_data.image = image;
2679 ginst_data.list = gclass_data.list = NULL;
2681 /* Collect the items to delete */
2682 /* delete_image_set () modifies the lists so make a copy */
2683 for (l = image->image_sets; l; l = l->next) {
2684 MonoImageSet *set = l->data;
2686 mono_image_set_lock (set);
2687 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2688 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2689 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2690 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2691 mono_image_set_unlock (set);
2694 /* Delete the removed items */
2695 for (l = ginst_data.list; l; l = l->next)
2696 free_generic_inst (l->data);
2697 for (l = gclass_data.list; l; l = l->next)
2698 free_generic_class (l->data);
2699 g_slist_free (ginst_data.list);
2700 g_slist_free (gclass_data.list);
2701 /* delete_image_set () modifies the lists so make a copy */
2702 set_list = g_slist_copy (image->image_sets);
2703 for (l = set_list; l; l = l->next) {
2704 MonoImageSet *set = l->data;
2706 delete_image_set (set);
2708 g_slist_free (set_list);
2712 free_inflated_method (MonoMethodInflated *imethod)
2715 MonoMethod *method = (MonoMethod*)imethod;
2717 mono_marshal_free_inflated_wrappers (method);
2719 if (method->signature)
2720 mono_metadata_free_inflated_signature (method->signature);
2722 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))) {
2723 MonoMethodHeader *header = imethod->header;
2726 /* Allocated in inflate_generic_header () */
2727 for (i = 0; i < header->num_locals; ++i)
2728 mono_metadata_free_type (header->locals [i]);
2729 g_free (header->clauses);
2738 free_generic_inst (MonoGenericInst *ginst)
2742 /* The ginst itself is allocated from the image set mempool */
2743 for (i = 0; i < ginst->type_argc; ++i)
2744 mono_metadata_free_type (ginst->type_argv [i]);
2748 free_generic_class (MonoGenericClass *gclass)
2750 /* The gclass itself is allocated from the image set mempool */
2751 if (gclass->is_dynamic)
2752 mono_reflection_free_dynamic_generic_class (gclass);
2753 if (gclass->cached_class && gclass->cached_class->interface_id)
2754 mono_unload_interface_id (gclass->cached_class);
2758 free_inflated_signature (MonoInflatedMethodSignature *sig)
2760 mono_metadata_free_inflated_signature (sig->sig);
2765 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2771 collect_data_init (&data);
2773 collect_method_images (method, &data);
2775 set = get_image_set (data.images, data.nimages);
2777 collect_data_free (&data);
2779 mono_image_set_lock (set);
2780 res = g_hash_table_lookup (set->gmethod_cache, method);
2781 if (!res && cache) {
2782 g_hash_table_insert (set->gmethod_cache, method, method);
2786 mono_image_set_unlock (set);
2791 * mono_metadata_get_inflated_signature:
2793 * Given an inflated signature and a generic context, return a canonical copy of the
2794 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2796 MonoMethodSignature *
2797 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2799 MonoInflatedMethodSignature helper;
2800 MonoInflatedMethodSignature *res;
2805 helper.context.class_inst = context->class_inst;
2806 helper.context.method_inst = context->method_inst;
2808 collect_data_init (&data);
2810 collect_inflated_signature_images (&helper, &data);
2812 set = get_image_set (data.images, data.nimages);
2814 collect_data_free (&data);
2816 mono_image_set_lock (set);
2818 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2820 res = g_new0 (MonoInflatedMethodSignature, 1);
2822 res->context.class_inst = context->class_inst;
2823 res->context.method_inst = context->method_inst;
2824 g_hash_table_insert (set->gsignature_cache, res, res);
2827 mono_image_set_unlock (set);
2833 * mono_metadata_get_generic_inst:
2835 * Given a list of types, return a MonoGenericInst that represents that list.
2836 * The returned MonoGenericInst has its own copy of the list of types. The list
2837 * passed in the argument can be freed, modified or disposed of.
2841 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2843 MonoGenericInst *ginst;
2846 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2850 for (i = 0; i < type_argc; ++i)
2851 if (mono_class_is_open_constructed_type (type_argv [i]))
2853 is_open = (i < type_argc);
2855 ginst = g_alloca (size);
2856 memset (ginst, 0, sizeof (MonoGenericInst));
2857 ginst->is_open = is_open;
2858 ginst->type_argc = type_argc;
2859 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2861 collect_data_init (&data);
2863 collect_ginst_images (ginst, &data);
2865 set = get_image_set (data.images, data.nimages);
2867 collect_data_free (&data);
2869 mono_image_set_lock (set);
2871 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2873 ginst = mono_image_set_alloc0 (set, size);
2874 #ifndef MONO_SMALL_CONFIG
2875 ginst->id = ++next_generic_inst_id;
2877 ginst->is_open = is_open;
2878 ginst->type_argc = type_argc;
2880 for (i = 0; i < type_argc; ++i)
2881 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2883 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2886 mono_image_set_unlock (set);
2891 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2893 MonoGenericContainer *container = container_class->generic_container;
2895 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2897 return inst == container->context.class_inst;
2901 * mono_metadata_lookup_generic_class:
2903 * Returns a MonoGenericClass with the given properties.
2907 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2909 MonoGenericClass *gclass;
2910 MonoGenericClass helper;
2911 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2915 helper.container_class = container_class;
2916 helper.context.class_inst = inst;
2917 helper.context.method_inst = NULL;
2918 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2919 helper.is_tb_open = is_tb_open;
2920 helper.cached_class = NULL;
2922 collect_data_init (&data);
2924 collect_gclass_images (&helper, &data);
2926 set = get_image_set (data.images, data.nimages);
2928 collect_data_free (&data);
2930 mono_image_set_lock (set);
2932 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
2934 /* A tripwire just to keep us honest */
2935 g_assert (!helper.cached_class);
2938 mono_image_set_unlock (set);
2943 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
2944 gclass = &dgclass->generic_class;
2945 gclass->is_dynamic = 1;
2947 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
2950 gclass->is_tb_open = is_tb_open;
2951 gclass->container_class = container_class;
2952 gclass->context.class_inst = inst;
2953 gclass->context.method_inst = NULL;
2954 gclass->owner = set;
2955 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2956 gclass->cached_class = container_class;
2958 g_hash_table_insert (set->gclass_cache, gclass, gclass);
2960 mono_image_set_unlock (set);
2966 * mono_metadata_inflate_generic_inst:
2968 * Instantiate the generic instance @ginst with the context @context.
2969 * Check @error for success.
2973 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
2975 MonoType **type_argv;
2976 MonoGenericInst *nginst = NULL;
2979 mono_error_init (error);
2981 if (!ginst->is_open)
2984 type_argv = g_new0 (MonoType*, ginst->type_argc);
2986 for (i = 0; i < ginst->type_argc; i++) {
2987 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
2988 if (!mono_error_ok (error))
2993 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2996 for (i = 0; i < count; i++)
2997 mono_metadata_free_type (type_argv [i]);
3004 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
3005 int count, const char *ptr, const char **rptr)
3007 MonoType **type_argv;
3008 MonoGenericInst *ginst;
3011 type_argv = g_new0 (MonoType*, count);
3013 for (i = 0; i < count; i++) {
3014 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
3025 ginst = mono_metadata_get_generic_inst (count, type_argv);
3033 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3034 const char *ptr, const char **rptr)
3036 MonoGenericInst *inst;
3041 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
3045 gklass = mono_class_from_mono_type (gtype);
3046 if (!gklass->generic_container)
3049 count = mono_metadata_decode_value (ptr, &ptr);
3050 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
3057 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3063 * @gc: The generic container to normalize
3064 * @type: The kind of generic parameters the resulting generic-container should contain
3067 static MonoGenericContainer *
3068 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3070 gboolean is_var = (type == MONO_TYPE_VAR);
3074 g_assert (is_var || type == MONO_TYPE_MVAR);
3077 if (gc->is_method || gc->parent)
3079 * The current MonoGenericContainer is a generic method -> its `parent'
3080 * points to the containing class'es container.
3089 * mono_metadata_parse_generic_param:
3090 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3091 * see mono_metadata_parse_type_full() for details.
3092 * Internal routine to parse a generic type parameter.
3093 * LOCKING: Acquires the loader lock
3095 static MonoGenericParam *
3096 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3097 MonoTypeEnum type, const char *ptr, const char **rptr)
3099 int index = mono_metadata_decode_value (ptr, &ptr);
3103 generic_container = select_container (generic_container, type);
3104 if (!generic_container) {
3105 /* Create dummy MonoGenericParam */
3106 MonoGenericParam *param;
3108 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3115 if (index >= generic_container->type_argc)
3118 return mono_generic_container_get_param (generic_container, index);
3122 * mono_metadata_get_shared_type:
3124 * Return a shared instance of TYPE, if available, NULL otherwise.
3125 * Shared MonoType instances help save memory. Their contents should not be modified
3126 * by the caller. They do not need to be freed as their lifetime is bound by either
3127 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3128 * instance they are embedded in. If they are freed, they should be freed using
3129 * mono_metadata_free_type () instead of g_free ().
3132 mono_metadata_get_shared_type (MonoType *type)
3136 /* No need to use locking since nobody is modifying the hash table */
3137 if ((cached = g_hash_table_lookup (type_cache, type)))
3140 switch (type->type){
3141 case MONO_TYPE_CLASS:
3142 case MONO_TYPE_VALUETYPE:
3143 if (type == &type->data.klass->byval_arg)
3145 if (type == &type->data.klass->this_arg)
3156 compare_type_literals (int class_type, int type_type)
3158 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3159 * See mcs/test/gtest-440. and #650936.
3160 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3164 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3167 if (class_type == type_type)
3170 if (type_type == MONO_TYPE_CLASS)
3171 return class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT;
3173 g_assert (type_type == MONO_TYPE_VALUETYPE);
3174 switch (class_type) {
3175 case MONO_TYPE_BOOLEAN:
3176 case MONO_TYPE_CHAR:
3196 * do_mono_metadata_parse_type:
3197 * @type: MonoType to be filled in with the return value
3199 * @generic_context: generics_context
3200 * @transient: whenever to allocate data from the heap
3201 * @ptr: pointer to the encoded type
3202 * @rptr: pointer where the end of the encoded type is saved
3204 * Internal routine used to "fill" the contents of @type from an
3205 * allocated pointer. This is done this way to avoid doing too
3206 * many mini-allocations (particularly for the MonoFieldType which
3207 * most of the time is just a MonoType, but sometimes might be augmented).
3209 * This routine is used by mono_metadata_parse_type and
3210 * mono_metadata_parse_field_type
3212 * This extracts a Type as specified in Partition II (22.2.12)
3214 * Returns: FALSE if the type could not be loaded
3217 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3218 gboolean transient, const char *ptr, const char **rptr)
3221 type->type = mono_metadata_decode_value (ptr, &ptr);
3223 switch (type->type){
3224 case MONO_TYPE_VOID:
3225 case MONO_TYPE_BOOLEAN:
3226 case MONO_TYPE_CHAR:
3239 case MONO_TYPE_STRING:
3240 case MONO_TYPE_OBJECT:
3241 case MONO_TYPE_TYPEDBYREF:
3243 case MONO_TYPE_VALUETYPE:
3244 case MONO_TYPE_CLASS: {
3248 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3249 class = mono_class_get_checked (m, token, &error);
3250 type->data.klass = class;
3252 mono_loader_set_error_from_mono_error (&error);
3253 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3256 if (!compare_type_literals (class->byval_arg.type, type->type))
3260 case MONO_TYPE_SZARRAY: {
3261 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
3264 type->data.klass = mono_class_from_mono_type (etype);
3265 if (!type->data.klass)
3270 type->data.type = mono_metadata_parse_type_internal (m, container, MONO_PARSE_MOD_TYPE, 0, transient, ptr, &ptr);
3271 if (!type->data.type)
3274 case MONO_TYPE_FNPTR: {
3276 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr, &error);
3277 if (!type->data.method) {
3278 mono_loader_set_error_from_mono_error (&error);
3279 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3284 case MONO_TYPE_ARRAY:
3285 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr);
3286 if (!type->data.array)
3289 case MONO_TYPE_MVAR:
3290 if (container && !container->is_method)
3293 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
3294 if (!type->data.generic_param)
3297 case MONO_TYPE_GENERICINST:
3298 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
3301 g_warning ("type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3311 * mono_metadata_free_type:
3312 * @type: type to free
3314 * Free the memory allocated for type @type which is allocated on the heap.
3317 mono_metadata_free_type (MonoType *type)
3319 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3322 switch (type->type){
3323 case MONO_TYPE_OBJECT:
3324 case MONO_TYPE_STRING:
3325 if (!type->data.klass)
3328 case MONO_TYPE_CLASS:
3329 case MONO_TYPE_VALUETYPE:
3330 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3334 mono_metadata_free_type (type->data.type);
3336 case MONO_TYPE_FNPTR:
3337 mono_metadata_free_method_signature (type->data.method);
3339 case MONO_TYPE_ARRAY:
3340 mono_metadata_free_array (type->data.array);
3351 hex_dump (const char *buffer, int base, int count)
3353 int show_header = 1;
3361 for (i = 0; i < count; i++){
3364 printf ("\n0x%08x: ", (unsigned char) base + i);
3366 printf ("%02x ", (unsigned char) (buffer [i]));
3373 * @ptr: Points to the beginning of the Section Data (25.3)
3375 static MonoExceptionClause*
3376 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3378 unsigned char sect_data_flags;
3380 guint32 sect_data_len;
3381 MonoExceptionClause* clauses = NULL;
3384 /* align on 32-bit boundary */
3385 ptr = dword_align (ptr);
3386 sect_data_flags = *ptr;
3389 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3391 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3394 sect_data_len = ptr [0];
3398 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3399 const unsigned char *p = dword_align (ptr);
3401 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3402 /* we could just store a pointer if we don't need to byteswap */
3403 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3404 for (i = 0; i < *num_clauses; ++i) {
3405 MonoExceptionClause *ec = &clauses [i];
3408 ec->flags = read32 (p);
3409 ec->try_offset = read32 (p + 4);
3410 ec->try_len = read32 (p + 8);
3411 ec->handler_offset = read32 (p + 12);
3412 ec->handler_len = read32 (p + 16);
3413 tof_value = read32 (p + 20);
3416 ec->flags = read16 (p);
3417 ec->try_offset = read16 (p + 2);
3418 ec->try_len = *(p + 4);
3419 ec->handler_offset = read16 (p + 5);
3420 ec->handler_len = *(p + 7);
3421 tof_value = read32 (p + 8);
3424 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3425 ec->data.filter_offset = tof_value;
3426 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3427 ec->data.catch_class = NULL;
3430 ec->data.catch_class = mono_class_get_checked (m, tof_value, &error);
3431 if (!mono_error_ok (&error)) {
3432 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3438 ec->data.catch_class = NULL;
3440 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3444 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3445 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3452 * mono_method_get_header_summary:
3453 * @method: The method to get the header.
3454 * @summary: Where to store the header
3457 * Returns: true if the header was properly decoded.
3460 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3466 unsigned char flags, format;
3469 /*Only the GMD has a pointer to the metadata.*/
3470 while (method->is_inflated)
3471 method = ((MonoMethodInflated*)method)->declaring;
3473 summary->code_size = 0;
3474 summary->has_clauses = FALSE;
3476 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3477 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))
3480 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3481 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3484 summary->code_size = header->code_size;
3485 summary->has_clauses = header->num_clauses > 0;
3490 idx = mono_metadata_token_index (method->token);
3491 img = method->klass->image;
3492 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3494 /*We must run the verifier since we'll be decoding it.*/
3495 if (!mono_verifier_verify_method_header (img, rva, NULL))
3498 ptr = mono_image_rva_map (img, rva);
3501 flags = *(const unsigned char *)ptr;
3502 format = flags & METHOD_HEADER_FORMAT_MASK;
3505 case METHOD_HEADER_TINY_FORMAT:
3507 summary->code_size = flags >> 2;
3509 case METHOD_HEADER_FAT_FORMAT:
3510 fat_flags = read16 (ptr);
3512 summary->code_size = read32 (ptr);
3513 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3514 summary->has_clauses = TRUE;
3523 * mono_metadata_parse_mh_full:
3524 * @m: metadata context
3525 * @generic_context: generics context
3526 * @ptr: pointer to the method header.
3528 * Decode the method header at @ptr, including pointer to the IL code,
3529 * info about local variables and optional exception tables.
3530 * This is a Mono runtime internal function.
3532 * LOCKING: Acquires the loader lock.
3534 * Returns: a transient MonoMethodHeader allocated from the heap.
3537 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3539 MonoMethodHeader *mh = NULL;
3540 unsigned char flags = *(const unsigned char *) ptr;
3541 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3543 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3544 const unsigned char *code;
3545 MonoExceptionClause* clauses = NULL;
3546 int num_clauses = 0;
3547 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3548 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3550 g_return_val_if_fail (ptr != NULL, NULL);
3553 case METHOD_HEADER_TINY_FORMAT:
3554 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3557 mh->is_transient = TRUE;
3558 local_var_sig_tok = 0;
3559 mh->code_size = flags >> 2;
3560 mh->code = (unsigned char*)ptr;
3562 case METHOD_HEADER_FAT_FORMAT:
3563 fat_flags = read16 (ptr);
3565 max_stack = read16 (ptr);
3567 code_size = read32 (ptr);
3569 local_var_sig_tok = read32 (ptr);
3572 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3577 code = (unsigned char*)ptr;
3579 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3583 * There are more sections
3585 ptr = (char*)code + code_size;
3591 if (local_var_sig_tok) {
3592 int idx = (local_var_sig_tok & 0xffffff)-1;
3593 if (idx >= t->rows || idx < 0)
3595 mono_metadata_decode_row (t, idx, cols, 1);
3597 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3600 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3601 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3602 if (local_var_sig_tok) {
3603 const char *locals_ptr;
3606 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3607 mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3608 if (*locals_ptr != 0x07)
3609 g_warning ("wrong signature for locals blob");
3611 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3612 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3613 mh->num_locals = len;
3614 for (i = 0; i < len; ++i) {
3615 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3616 MONO_PARSE_LOCAL, 0, TRUE, locals_ptr, &locals_ptr);
3617 if (!mh->locals [i])
3621 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3624 mh->code_size = code_size;
3625 mh->max_stack = max_stack;
3626 mh->is_transient = TRUE;
3627 mh->init_locals = init_locals;
3629 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3630 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3632 mh->clauses = clausesp;
3633 mh->num_clauses = num_clauses;
3644 * mono_metadata_parse_mh:
3645 * @generic_context: generics context
3646 * @ptr: pointer to the method header.
3648 * Decode the method header at @ptr, including pointer to the IL code,
3649 * info about local variables and optional exception tables.
3651 * Returns: a transient MonoMethodHeader allocated from the heap.
3654 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3656 return mono_metadata_parse_mh_full (m, NULL, ptr);
3660 * mono_metadata_free_mh:
3661 * @mh: a method header
3663 * Free the memory allocated for the method header.
3666 mono_metadata_free_mh (MonoMethodHeader *mh)
3670 /* If it is not transient it means it's part of a wrapper method,
3671 * or a SRE-generated method, so the lifetime in that case is
3672 * dictated by the method's own lifetime
3674 if (mh->is_transient) {
3675 for (i = 0; i < mh->num_locals; ++i)
3676 mono_metadata_free_type (mh->locals [i]);
3682 * mono_method_header_get_code:
3683 * @header: a MonoMethodHeader pointer
3684 * @code_size: memory location for returning the code size
3685 * @max_stack: memory location for returning the max stack
3687 * Method header accessor to retreive info about the IL code properties:
3688 * a pointer to the IL code itself, the size of the code and the max number
3689 * of stack slots used by the code.
3691 * Returns: pointer to the IL code represented by the method header.
3693 const unsigned char*
3694 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3697 *code_size = header->code_size;
3699 *max_stack = header->max_stack;
3700 return header->code;
3704 * mono_method_header_get_locals:
3705 * @header: a MonoMethodHeader pointer
3706 * @num_locals: memory location for returning the number of local variables
3707 * @init_locals: memory location for returning the init_locals flag
3709 * Method header accessor to retreive info about the local variables:
3710 * an array of local types, the number of locals and whether the locals
3711 * are supposed to be initialized to 0 on method entry
3713 * Returns: pointer to an array of types of the local variables
3716 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3719 *num_locals = header->num_locals;
3721 *init_locals = header->init_locals;
3722 return header->locals;
3726 * mono_method_header_get_num_clauses:
3727 * @header: a MonoMethodHeader pointer
3729 * Method header accessor to retreive the number of exception clauses.
3731 * Returns: the number of exception clauses present
3734 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3736 return header->num_clauses;
3740 * mono_method_header_get_clauses:
3741 * @header: a MonoMethodHeader pointer
3742 * @method: MonoMethod the header belongs to
3743 * @iter: pointer to a iterator
3744 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3746 * Get the info about the exception clauses in the method. Set *iter to NULL to
3747 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3748 * At each iteration, the structure pointed to by clause if filled with the
3749 * exception clause information.
3751 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3755 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3757 MonoExceptionClause *sc;
3758 /* later we'll be able to use this interface to parse the clause info on demand,
3759 * without allocating anything.
3761 if (!iter || !header->num_clauses)
3764 *iter = sc = header->clauses;
3770 if (sc < header->clauses + header->num_clauses) {
3779 * mono_metadata_parse_field_type:
3780 * @m: metadata context to extract information from
3781 * @ptr: pointer to the field signature
3782 * @rptr: pointer updated to match the end of the decoded stream
3784 * Parses the field signature, and returns the type information for it.
3786 * Returns: The MonoType that was extracted from @ptr.
3789 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3791 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3795 * mono_metadata_parse_param:
3796 * @m: metadata context to extract information from
3797 * @ptr: pointer to the param signature
3798 * @rptr: pointer updated to match the end of the decoded stream
3800 * Parses the param signature, and returns the type information for it.
3802 * Returns: The MonoType that was extracted from @ptr.
3805 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3807 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3811 * mono_metadata_token_from_dor:
3812 * @dor_token: A TypeDefOrRef coded index
3814 * dor_token is a TypeDefOrRef coded index: it contains either
3815 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3816 * bits contain an index into the table.
3818 * Returns: an expanded token
3821 mono_metadata_token_from_dor (guint32 dor_index)
3825 table = dor_index & 0x03;
3826 idx = dor_index >> 2;
3829 case 0: /* TypeDef */
3830 return MONO_TOKEN_TYPE_DEF | idx;
3831 case 1: /* TypeRef */
3832 return MONO_TOKEN_TYPE_REF | idx;
3833 case 2: /* TypeSpec */
3834 return MONO_TOKEN_TYPE_SPEC | idx;
3836 g_assert_not_reached ();
3843 * We use this to pass context information to the row locator
3846 int idx; /* The index that we are trying to locate */
3847 int col_idx; /* The index in the row where idx may be stored */
3848 MonoTableInfo *t; /* pointer to the table */
3853 * How the row locator works.
3858 * ___|___------> _______
3861 * A column in the rows of table A references an index in table B.
3862 * For example A may be the TYPEDEF table and B the METHODDEF table.
3864 * Given an index in table B we want to get the row in table A
3865 * where the column n references our index in B.
3867 * In the locator_t structure:
3869 * col_idx is the column number
3870 * index is the index in table B
3871 * result will be the index in table A
3874 * Table A Table B column (in table A)
3875 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3876 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3877 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3878 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3879 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3881 * Note that we still don't support encoded indexes.
3885 typedef_locator (const void *a, const void *b)
3887 locator_t *loc = (locator_t *) a;
3888 const char *bb = (const char *) b;
3889 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3890 guint32 col, col_next;
3892 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3898 * Need to check that the next row is valid.
3900 if (typedef_index + 1 < loc->t->rows) {
3901 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3902 if (loc->idx >= col_next)
3905 if (col == col_next)
3909 loc->result = typedef_index;
3915 table_locator (const void *a, const void *b)
3917 locator_t *loc = (locator_t *) a;
3918 const char *bb = (const char *) b;
3919 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3922 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3924 if (loc->idx == col) {
3925 loc->result = table_index;
3935 declsec_locator (const void *a, const void *b)
3937 locator_t *loc = (locator_t *) a;
3938 const char *bb = (const char *) b;
3939 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3942 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3944 if (loc->idx == col) {
3945 loc->result = table_index;
3957 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3958 * which contains IDX.
3961 search_ptr_table (MonoImage *image, int table, int idx)
3963 MonoTableInfo *ptrdef = &image->tables [table];
3966 /* Use a linear search to find our index in the table */
3967 for (i = 0; i < ptrdef->rows; i ++)
3968 /* All the Ptr tables have the same structure */
3969 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3972 if (i < ptrdef->rows)
3979 * mono_metadata_typedef_from_field:
3980 * @meta: metadata context
3981 * @index: FieldDef token
3983 * Returns: the 1-based index into the TypeDef table of the type that
3984 * declared the field described by @index, or 0 if not found.
3987 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3989 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3995 loc.idx = mono_metadata_token_index (index);
3996 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3999 if (meta->uncompressed_metadata)
4000 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4002 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4005 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4006 return loc.result + 1;
4010 * mono_metadata_typedef_from_method:
4011 * @meta: metadata context
4012 * @index: MethodDef token
4014 * Returns: the 1-based index into the TypeDef table of the type that
4015 * declared the method described by @index. 0 if not found.
4018 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
4020 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4026 loc.idx = mono_metadata_token_index (index);
4027 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
4030 if (meta->uncompressed_metadata)
4031 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
4033 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4036 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4037 return loc.result + 1;
4041 * mono_metadata_interfaces_from_typedef_full:
4042 * @meta: metadata context
4043 * @index: typedef token
4044 * @interfaces: Out parameter used to store the interface array
4045 * @count: Out parameter used to store the number of interfaces
4046 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
4047 * @context: The generic context
4049 * The array of interfaces that the @index typedef token implements is returned in
4050 * @interfaces. The number of elements in the array is returned in @count.
4053 * Returns: TRUE on success, FALSE on failure.
4056 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context, MonoError *error)
4058 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
4061 guint32 cols [MONO_INTERFACEIMPL_SIZE];
4067 mono_error_init (error);
4072 loc.idx = mono_metadata_token_index (index);
4073 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
4076 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4081 * We may end up in the middle of the rows...
4084 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4090 while (pos < tdef->rows) {
4091 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4092 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4097 if (heap_alloc_result)
4098 result = g_new0 (MonoClass*, pos - start);
4100 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4103 while (pos < tdef->rows) {
4106 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4107 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4109 iface = mono_class_get_and_inflate_typespec_checked (
4110 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context, error);
4113 result [pos - start] = iface;
4116 *count = pos - start;
4117 *interfaces = result;
4122 * @meta: metadata context
4123 * @index: typedef token
4124 * @count: Out parameter used to store the number of interfaces
4126 * The array of interfaces that the @index typedef token implements is returned in
4127 * @interfaces. The number of elements in the array is returned in @count. The returned
4128 * array is g_malloc'd and the caller must free it.
4130 * LOCKING: Acquires the loader lock .
4132 * Returns: the interface array on success, NULL on failure.
4136 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4139 MonoClass **interfaces = NULL;
4142 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL, &error);
4143 g_assert (mono_error_ok (&error)); /* FIXME dont swallow the error */
4151 * mono_metadata_nested_in_typedef:
4152 * @meta: metadata context
4153 * @index: typedef token
4155 * Returns: the 1-based index into the TypeDef table of the type
4156 * where the type described by @index is nested.
4157 * Returns 0 if @index describes a non-nested type.
4160 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4162 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4168 loc.idx = mono_metadata_token_index (index);
4169 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4172 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4175 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4176 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4180 * mono_metadata_nesting_typedef:
4181 * @meta: metadata context
4182 * @index: typedef token
4184 * Returns: the 1-based index into the TypeDef table of the first type
4185 * that is nested inside the type described by @index. The search starts at
4186 * @start_index. returns 0 if no such type is found.
4189 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4191 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4193 guint32 class_index = mono_metadata_token_index (index);
4198 start = start_index;
4200 while (start <= tdef->rows) {
4201 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4207 if (start > tdef->rows)
4214 * mono_metadata_packing_from_typedef:
4215 * @meta: metadata context
4216 * @index: token representing a type
4218 * Returns: the info stored in the ClassLAyout table for the given typedef token
4219 * into the @packing and @size pointers.
4220 * Returns 0 if the info is not found.
4223 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4225 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4227 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4232 loc.idx = mono_metadata_token_index (index);
4233 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4236 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4239 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4241 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4243 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4245 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4246 return loc.result + 1;
4250 * mono_metadata_custom_attrs_from_index:
4251 * @meta: metadata context
4252 * @index: token representing the parent
4254 * Returns: the 1-based index into the CustomAttribute table of the first
4255 * attribute which belongs to the metadata object described by @index.
4256 * Returns 0 if no such attribute is found.
4259 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4261 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4268 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4271 /* FIXME: Index translation */
4273 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4276 /* Find the first entry by searching backwards */
4277 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4280 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4281 return loc.result + 1;
4285 * mono_metadata_declsec_from_index:
4286 * @meta: metadata context
4287 * @index: token representing the parent
4289 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4290 * attribute which belongs to the metadata object described by @index.
4291 * Returns -1 if no such attribute is found.
4294 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4296 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4303 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4306 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4309 /* Find the first entry by searching backwards */
4310 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4318 mono_backtrace (int limit)
4323 backtrace (array, limit);
4324 names = backtrace_symbols (array, limit);
4325 for (i =0; i < limit; ++i) {
4326 g_print ("\t%s\n", names [i]);
4332 static int i8_align;
4335 * mono_type_set_alignment:
4337 * Set the alignment used by runtime to layout fields etc. of type TYPE to ALIGN.
4338 * This should only be used in AOT mode since the resulting layout will not match the
4342 mono_type_set_alignment (MonoTypeEnum type, int align)
4344 /* Support only a few types whose alignment is abi dependent */
4350 g_assert_not_reached ();
4357 * @t: the type to return the size of
4359 * Returns: the number of bytes required to hold an instance of this
4363 mono_type_size (MonoType *t, int *align)
4365 MonoTypeEnum simple_type;
4372 *align = MONO_ABI_ALIGNOF (gpointer);
4373 return sizeof (gpointer);
4376 simple_type = t->type;
4378 switch (simple_type) {
4379 case MONO_TYPE_VOID:
4382 case MONO_TYPE_BOOLEAN:
4383 *align = MONO_ABI_ALIGNOF (gint8);
4387 *align = MONO_ABI_ALIGNOF (gint8);
4389 case MONO_TYPE_CHAR:
4392 *align = MONO_ABI_ALIGNOF (gint16);
4396 *align = MONO_ABI_ALIGNOF (gint32);
4399 *align = MONO_ABI_ALIGNOF (float);
4403 *align = MONO_ABI_ALIGNOF (gint64);
4406 *align = MONO_ABI_ALIGNOF (double);
4410 *align = MONO_ABI_ALIGNOF (gpointer);
4411 return sizeof (gpointer);
4412 case MONO_TYPE_STRING:
4413 *align = MONO_ABI_ALIGNOF (gpointer);
4414 return sizeof (gpointer);
4415 case MONO_TYPE_OBJECT:
4416 *align = MONO_ABI_ALIGNOF (gpointer);
4417 return sizeof (gpointer);
4418 case MONO_TYPE_VALUETYPE: {
4419 if (t->data.klass->enumtype)
4420 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4422 return mono_class_value_size (t->data.klass, (guint32*)align);
4424 case MONO_TYPE_CLASS:
4425 case MONO_TYPE_SZARRAY:
4427 case MONO_TYPE_FNPTR:
4428 case MONO_TYPE_ARRAY:
4429 *align = MONO_ABI_ALIGNOF (gpointer);
4430 return sizeof (gpointer);
4431 case MONO_TYPE_TYPEDBYREF:
4432 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4433 case MONO_TYPE_GENERICINST: {
4434 MonoGenericClass *gclass = t->data.generic_class;
4435 MonoClass *container_class = gclass->container_class;
4437 // g_assert (!gclass->inst->is_open);
4439 if (container_class->valuetype) {
4440 if (container_class->enumtype)
4441 return mono_type_size (mono_class_enum_basetype (container_class), align);
4443 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4445 *align = MONO_ABI_ALIGNOF (gpointer);
4446 return sizeof (gpointer);
4450 case MONO_TYPE_MVAR:
4451 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4452 *align = MONO_ABI_ALIGNOF (gpointer);
4453 return sizeof (gpointer);
4455 /* The gparam can only match types given by gshared_constraint */
4456 return mono_type_size (t->data.generic_param->gshared_constraint, align);
4460 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4466 * mono_type_stack_size:
4467 * @t: the type to return the size it uses on the stack
4469 * Returns: the number of bytes required to hold an instance of this
4470 * type on the runtime stack
4473 mono_type_stack_size (MonoType *t, int *align)
4475 return mono_type_stack_size_internal (t, align, FALSE);
4479 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4482 MonoTypeEnum simple_type;
4483 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4484 int stack_slot_size = sizeof (gpointer);
4485 int stack_slot_align = MONO_ABI_ALIGNOF (gpointer);
4486 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4487 int stack_slot_size = SIZEOF_REGISTER;
4488 int stack_slot_align = SIZEOF_REGISTER;
4491 g_assert (t != NULL);
4497 *align = stack_slot_align;
4498 return stack_slot_size;
4501 simple_type = t->type;
4502 switch (simple_type) {
4503 case MONO_TYPE_BOOLEAN:
4504 case MONO_TYPE_CHAR:
4513 case MONO_TYPE_STRING:
4514 case MONO_TYPE_OBJECT:
4515 case MONO_TYPE_CLASS:
4516 case MONO_TYPE_SZARRAY:
4518 case MONO_TYPE_FNPTR:
4519 case MONO_TYPE_ARRAY:
4520 *align = stack_slot_align;
4521 return stack_slot_size;
4523 case MONO_TYPE_MVAR:
4524 g_assert (allow_open);
4525 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4526 *align = stack_slot_align;
4527 return stack_slot_size;
4529 /* The gparam can only match types given by gshared_constraint */
4530 return mono_type_stack_size_internal (t->data.generic_param->gshared_constraint, align, allow_open);
4532 case MONO_TYPE_TYPEDBYREF:
4533 *align = stack_slot_align;
4534 return stack_slot_size * 3;
4536 *align = MONO_ABI_ALIGNOF (float);
4537 return sizeof (float);
4540 *align = MONO_ABI_ALIGNOF (gint64);
4541 return sizeof (gint64);
4543 *align = MONO_ABI_ALIGNOF (double);
4544 return sizeof (double);
4545 case MONO_TYPE_VALUETYPE: {
4548 if (t->data.klass->enumtype)
4549 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4551 size = mono_class_value_size (t->data.klass, (guint32*)align);
4553 *align = *align + stack_slot_align - 1;
4554 *align &= ~(stack_slot_align - 1);
4556 size += stack_slot_size - 1;
4557 size &= ~(stack_slot_size - 1);
4562 case MONO_TYPE_GENERICINST: {
4563 MonoGenericClass *gclass = t->data.generic_class;
4564 MonoClass *container_class = gclass->container_class;
4567 g_assert (!gclass->context.class_inst->is_open);
4569 if (container_class->valuetype) {
4570 if (container_class->enumtype)
4571 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4573 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4575 *align = *align + stack_slot_align - 1;
4576 *align &= ~(stack_slot_align - 1);
4578 size += stack_slot_size - 1;
4579 size &= ~(stack_slot_size - 1);
4584 *align = stack_slot_align;
4585 return stack_slot_size;
4589 g_error ("type 0x%02x unknown", t->type);
4595 mono_type_generic_inst_is_valuetype (MonoType *type)
4597 g_assert (type->type == MONO_TYPE_GENERICINST);
4598 return type->data.generic_class->container_class->valuetype;
4602 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4604 return gclass->container_class->valuetype;
4608 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4610 MonoGenericInst *i1 = g1->context.class_inst;
4611 MonoGenericInst *i2 = g2->context.class_inst;
4613 if (g1->is_dynamic != g2->is_dynamic)
4615 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4617 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4619 return g1->is_tb_open == g2->is_tb_open;
4623 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4625 MonoGenericInst *i1 = g1->context.class_inst;
4626 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4628 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4630 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4632 return !g1->is_tb_open;
4636 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4638 /* FIXME: check if this seed is good enough */
4639 guint hash = 0xc01dfee7;
4640 if (context->class_inst)
4641 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4642 if (context->method_inst)
4643 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4648 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4650 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4654 * mono_metadata_str_hash:
4656 * This should be used instead of g_str_hash for computing hash codes visible
4657 * outside this module, since g_str_hash () is not guaranteed to be stable
4658 * (its not the same in eglib for example).
4661 mono_metadata_str_hash (gconstpointer v1)
4663 /* Same as g_str_hash () in glib */
4664 char *p = (char *) v1;
4669 hash = (hash << 5) - hash + *p;
4676 * mono_metadata_type_hash:
4679 * Computes an hash value for @t1 to be used in GHashTable.
4680 * The returned hash is guaranteed to be the same across executions.
4683 mono_metadata_type_hash (MonoType *t1)
4685 guint hash = t1->type;
4687 hash |= t1->byref << 6; /* do not collide with t1->type values */
4689 case MONO_TYPE_VALUETYPE:
4690 case MONO_TYPE_CLASS:
4691 case MONO_TYPE_SZARRAY: {
4692 MonoClass *class = t1->data.klass;
4694 * Dynamic classes must not be hashed on their type since it can change
4695 * during runtime. For example, if we hash a reference type that is
4696 * later made into a valuetype.
4698 * This is specially problematic with generic instances since they are
4699 * inserted in a bunch of hash tables before been finished.
4701 if (image_is_dynamic (class->image))
4702 return (t1->byref << 6) | mono_metadata_str_hash (class->name);
4703 return ((hash << 5) - hash) ^ mono_metadata_str_hash (class->name);
4706 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4707 case MONO_TYPE_ARRAY:
4708 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4709 case MONO_TYPE_GENERICINST:
4710 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4712 case MONO_TYPE_MVAR:
4713 return ((hash << 5) - hash) ^ mono_metadata_generic_param_hash (t1->data.generic_param);
4720 mono_metadata_generic_param_hash (MonoGenericParam *p)
4723 MonoGenericParamInfo *info;
4725 hash = (mono_generic_param_num (p) << 2);
4726 if (p->gshared_constraint)
4727 hash = ((hash << 5) - hash) ^ mono_metadata_type_hash (p->gshared_constraint);
4728 info = mono_generic_param_info (p);
4729 /* Can't hash on the owner klass/method, since those might not be set when this is called */
4731 hash = ((hash << 5) - hash) ^ info->token;
4736 mono_metadata_generic_param_equal_internal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4740 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4742 if (p1->gshared_constraint && p2->gshared_constraint) {
4743 if (!mono_metadata_type_equal (p1->gshared_constraint, p2->gshared_constraint))
4746 if (p1->gshared_constraint != p2->gshared_constraint)
4751 * We have to compare the image as well because if we didn't,
4752 * the generic_inst_cache lookup wouldn't care about the image
4753 * of generic params, so what could happen is that a generic
4754 * inst with params from image A is put into the cache, then
4755 * image B gets that generic inst from the cache, image A is
4756 * unloaded, so the inst is deleted, but image B still retains
4759 * The AOT runtime doesn't set the image when it's decoding
4760 * types, so we only compare it when the owner is NULL.
4762 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4763 (mono_generic_param_owner (p1) || p1->image == p2->image))
4767 * If `signature_only' is true, we're comparing two (method) signatures.
4768 * In this case, the owner of two type parameters doesn't need to match.
4771 return signature_only;
4775 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2)
4777 return mono_metadata_generic_param_equal_internal (p1, p2, TRUE);
4781 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4785 if (c1->generic_class && c2->generic_class)
4786 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4787 if (c1->generic_class && c2->generic_container)
4788 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4789 if (c1->generic_container && c2->generic_class)
4790 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4791 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4792 return mono_metadata_generic_param_equal_internal (
4793 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4794 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4795 return mono_metadata_generic_param_equal_internal (
4796 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4797 if (signature_only &&
4798 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4799 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4800 if (signature_only &&
4801 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
4802 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
4807 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4809 gpointer iter1 = 0, iter2 = 0;
4813 if (s1->call_convention != s2->call_convention)
4815 if (s1->sentinelpos != s2->sentinelpos)
4817 if (s1->hasthis != s2->hasthis)
4819 if (s1->explicit_this != s2->explicit_this)
4821 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4823 if (s1->param_count != s2->param_count)
4827 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4828 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4830 if (t1 == NULL || t2 == NULL)
4832 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4838 * mono_metadata_type_equal:
4842 * Determine if @t1 and @t2 represent the same type.
4843 * Returns: #TRUE if @t1 and @t2 are equal.
4846 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4848 if (t1->type != t2->type || t1->byref != t2->byref)
4852 case MONO_TYPE_VOID:
4853 case MONO_TYPE_BOOLEAN:
4854 case MONO_TYPE_CHAR:
4865 case MONO_TYPE_STRING:
4868 case MONO_TYPE_OBJECT:
4869 case MONO_TYPE_TYPEDBYREF:
4871 case MONO_TYPE_VALUETYPE:
4872 case MONO_TYPE_CLASS:
4873 case MONO_TYPE_SZARRAY:
4874 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4876 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4877 case MONO_TYPE_ARRAY:
4878 if (t1->data.array->rank != t2->data.array->rank)
4880 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4881 case MONO_TYPE_GENERICINST:
4882 return _mono_metadata_generic_class_equal (
4883 t1->data.generic_class, t2->data.generic_class, signature_only);
4885 return mono_metadata_generic_param_equal_internal (
4886 t1->data.generic_param, t2->data.generic_param, signature_only);
4887 case MONO_TYPE_MVAR:
4888 return mono_metadata_generic_param_equal_internal (
4889 t1->data.generic_param, t2->data.generic_param, signature_only);
4890 case MONO_TYPE_FNPTR:
4891 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4893 g_error ("implement type compare for %0x!", t1->type);
4901 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
4903 return do_mono_metadata_type_equal (t1, t2, FALSE);
4907 * mono_metadata_type_equal_full:
4910 * @signature_only: if signature only comparison should be made
4912 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
4913 * behaves the same way as mono_metadata_type_equal.
4914 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
4915 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
4918 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
4920 return do_mono_metadata_type_equal (t1, t2, signature_only);
4924 * mono_metadata_signature_equal:
4925 * @sig1: a signature
4926 * @sig2: another signature
4928 * Determine if @sig1 and @sig2 represent the same signature, with the
4929 * same number of arguments and the same types.
4930 * Returns: #TRUE if @sig1 and @sig2 are equal.
4933 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4937 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4940 if (sig1->generic_param_count != sig2->generic_param_count)
4944 * We're just comparing the signatures of two methods here:
4946 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4947 * U and V are equal here.
4949 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4952 for (i = 0; i < sig1->param_count; i++) {
4953 MonoType *p1 = sig1->params[i];
4954 MonoType *p2 = sig2->params[i];
4956 /* if (p1->attrs != p2->attrs)
4959 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
4963 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4969 * mono_metadata_type_dup:
4970 * @image: image to alloc memory from
4971 * @original: type to duplicate
4973 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
4976 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
4979 int sizeof_o = MONO_SIZEOF_TYPE;
4981 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
4983 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
4985 memcpy (r, o, sizeof_o);
4987 if (o->type == MONO_TYPE_PTR) {
4988 r->data.type = mono_metadata_type_dup (image, o->data.type);
4989 } else if (o->type == MONO_TYPE_ARRAY) {
4990 r->data.array = mono_dup_array_type (image, o->data.array);
4991 } else if (o->type == MONO_TYPE_FNPTR) {
4992 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
4993 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
4999 mono_signature_hash (MonoMethodSignature *sig)
5001 guint i, res = sig->ret->type;
5003 for (i = 0; i < sig->param_count; i++)
5004 res = (res << 5) - res + mono_type_hash (sig->params[i]);
5010 * mono_metadata_encode_value:
5011 * @value: value to encode
5012 * @buf: buffer where to write the compressed representation
5013 * @endbuf: pointer updated to point at the end of the encoded output
5015 * Encodes the value @value in the compressed representation used
5016 * in metadata and stores the result in @buf. @buf needs to be big
5017 * enough to hold the data (4 bytes).
5020 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
5026 else if (value < 0x4000) {
5027 p [0] = 0x80 | (value >> 8);
5028 p [1] = value & 0xff;
5031 p [0] = (value >> 24) | 0xc0;
5032 p [1] = (value >> 16) & 0xff;
5033 p [2] = (value >> 8) & 0xff;
5034 p [3] = value & 0xff;
5042 * mono_metadata_field_info:
5043 * @meta: the Image the field is defined in
5044 * @index: the index in the field table representing the field
5045 * @offset: a pointer to an integer where to store the offset that
5046 * may have been specified for the field in a FieldLayout table
5047 * @rva: a pointer to the RVA of the field data in the image that
5048 * may have been defined in a FieldRVA table
5049 * @marshal_spec: a pointer to the marshal spec that may have been
5050 * defined for the field in a FieldMarshal table.
5052 * Gather info for field @index that may have been defined in the FieldLayout,
5053 * FieldRVA and FieldMarshal tables.
5054 * Either of offset, rva and marshal_spec can be NULL if you're not interested
5058 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5059 MonoMarshalSpec **marshal_spec)
5061 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
5065 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5066 MonoMarshalSpec **marshal_spec)
5068 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
5072 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5073 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
5075 MonoTableInfo *tdef;
5078 loc.idx = index + 1;
5079 if (meta->uncompressed_metadata)
5080 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
5083 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
5085 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
5088 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5089 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
5091 *offset = (guint32)-1;
5095 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
5097 loc.col_idx = MONO_FIELD_RVA_FIELD;
5100 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5102 * LAMESPEC: There is no signature, no nothing, just the raw data.
5104 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
5112 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
5113 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, meta, p);
5120 * mono_metadata_get_constant_index:
5121 * @meta: the Image the field is defined in
5122 * @index: the token that may have a row defined in the constants table
5123 * @hint: possible position for the row
5125 * @token must be a FieldDef, ParamDef or PropertyDef token.
5127 * Returns: the index into the Constants table or 0 if not found.
5130 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
5132 MonoTableInfo *tdef;
5134 guint32 index = mono_metadata_token_index (token);
5136 tdef = &meta->tables [MONO_TABLE_CONSTANT];
5137 index <<= MONO_HASCONSTANT_BITS;
5138 switch (mono_metadata_token_table (token)) {
5139 case MONO_TABLE_FIELD:
5140 index |= MONO_HASCONSTANT_FIEDDEF;
5142 case MONO_TABLE_PARAM:
5143 index |= MONO_HASCONSTANT_PARAM;
5145 case MONO_TABLE_PROPERTY:
5146 index |= MONO_HASCONSTANT_PROPERTY;
5149 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5153 loc.col_idx = MONO_CONSTANT_PARENT;
5156 /* FIXME: Index translation */
5158 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5161 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5162 return loc.result + 1;
5168 * mono_metadata_events_from_typedef:
5169 * @meta: metadata context
5170 * @index: 0-based index (in the TypeDef table) describing a type
5172 * Returns: the 0-based index in the Event table for the events in the
5173 * type. The last event that belongs to the type (plus 1) is stored
5174 * in the @end_idx pointer.
5177 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5181 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5189 loc.col_idx = MONO_EVENT_MAP_PARENT;
5190 loc.idx = index + 1;
5192 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5195 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5196 if (loc.result + 1 < tdef->rows) {
5197 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5199 end = meta->tables [MONO_TABLE_EVENT].rows;
5207 * mono_metadata_methods_from_event:
5208 * @meta: metadata context
5209 * @index: 0-based index (in the Event table) describing a event
5211 * Returns: the 0-based index in the MethodDef table for the methods in the
5212 * event. The last method that belongs to the event (plus 1) is stored
5213 * in the @end_idx pointer.
5216 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5220 guint32 cols [MONO_METHOD_SEMA_SIZE];
5221 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5227 if (meta->uncompressed_metadata)
5228 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5231 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5232 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5234 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5239 * We may end up in the middle of the rows...
5242 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5248 while (end < msemt->rows) {
5249 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5250 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5259 * mono_metadata_properties_from_typedef:
5260 * @meta: metadata context
5261 * @index: 0-based index (in the TypeDef table) describing a type
5263 * Returns: the 0-based index in the Property table for the properties in the
5264 * type. The last property that belongs to the type (plus 1) is stored
5265 * in the @end_idx pointer.
5268 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5272 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5280 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5281 loc.idx = index + 1;
5283 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5286 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5287 if (loc.result + 1 < tdef->rows) {
5288 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5290 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5298 * mono_metadata_methods_from_property:
5299 * @meta: metadata context
5300 * @index: 0-based index (in the PropertyDef table) describing a property
5302 * Returns: the 0-based index in the MethodDef table for the methods in the
5303 * property. The last method that belongs to the property (plus 1) is stored
5304 * in the @end_idx pointer.
5307 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5311 guint32 cols [MONO_METHOD_SEMA_SIZE];
5312 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5318 if (meta->uncompressed_metadata)
5319 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5322 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5323 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5325 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5330 * We may end up in the middle of the rows...
5333 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5339 while (end < msemt->rows) {
5340 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5341 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5350 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5353 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5358 /* No index translation seems to be needed */
5361 loc.col_idx = MONO_IMPLMAP_MEMBER;
5362 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5364 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5367 return loc.result + 1;
5371 * @image: context where the image is created
5372 * @type_spec: typespec token
5373 * @deprecated use mono_type_create_from_typespec_checked that has proper error handling
5375 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5379 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5382 MonoType *type = mono_type_create_from_typespec_checked (image, type_spec, &error);
5384 g_error ("Could not create typespec %x due to %s", type_spec, mono_error_get_message (&error));
5389 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error)
5392 guint32 idx = mono_metadata_token_index (type_spec);
5394 guint32 cols [MONO_TYPESPEC_SIZE];
5396 MonoType *type, *type2;
5398 mono_error_init (error);
5400 mono_image_lock (image);
5401 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5402 mono_image_unlock (image);
5406 t = &image->tables [MONO_TABLE_TYPESPEC];
5408 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5409 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5411 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5412 mono_error_set_bad_image (error, image, "Could not verify type spec %08x.", type_spec);
5416 mono_metadata_decode_value (ptr, &ptr);
5418 type = mono_metadata_parse_type_internal (image, NULL, MONO_PARSE_TYPE, 0, TRUE, ptr, &ptr);
5420 if (mono_loader_get_last_error ())
5421 mono_error_set_from_loader_error (error);
5423 mono_error_set_bad_image (error, image, "Could not parse type spec %08x.", type_spec);
5427 type2 = mono_metadata_type_dup (image, type);
5428 mono_metadata_free_type (type);
5430 mono_image_lock (image);
5431 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5432 /* We might leak some data in the image mempool if found */
5434 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5437 mono_image_unlock (image);
5444 mono_image_strndup (MonoImage *image, const char *data, guint len)
5448 return g_strndup (data, len);
5449 res = mono_image_alloc (image, len + 1);
5450 memcpy (res, data, len);
5456 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5458 return mono_metadata_parse_marshal_spec_full (NULL, image, ptr);
5462 * If IMAGE is non-null, memory will be allocated from its mempool, otherwise it will be allocated using malloc.
5463 * PARENT_IMAGE is the image containing the marshal spec.
5466 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr)
5468 MonoMarshalSpec *res;
5470 const char *start = ptr;
5472 /* fixme: this is incomplete, but I cant find more infos in the specs */
5475 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5477 res = g_new0 (MonoMarshalSpec, 1);
5479 len = mono_metadata_decode_value (ptr, &ptr);
5480 res->native = *ptr++;
5482 if (res->native == MONO_NATIVE_LPARRAY) {
5483 res->data.array_data.param_num = -1;
5484 res->data.array_data.num_elem = -1;
5485 res->data.array_data.elem_mult = -1;
5487 if (ptr - start <= len)
5488 res->data.array_data.elem_type = *ptr++;
5489 if (ptr - start <= len)
5490 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5491 if (ptr - start <= len)
5492 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5493 if (ptr - start <= len) {
5495 * LAMESPEC: Older spec versions say this parameter comes before
5496 * num_elem. Never spec versions don't talk about elem_mult at
5497 * all, but csc still emits it, and it is used to distinguish
5498 * between param_num being 0, and param_num being omitted.
5499 * So if (param_num == 0) && (num_elem > 0), then
5500 * elem_mult == 0 -> the array size is num_elem
5501 * elem_mult == 1 -> the array size is @param_num + num_elem
5503 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5507 if (res->native == MONO_NATIVE_BYVALTSTR) {
5508 if (ptr - start <= len)
5509 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5512 if (res->native == MONO_NATIVE_BYVALARRAY) {
5513 if (ptr - start <= len)
5514 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5517 if (res->native == MONO_NATIVE_CUSTOM) {
5518 /* skip unused type guid */
5519 len = mono_metadata_decode_value (ptr, &ptr);
5521 /* skip unused native type name */
5522 len = mono_metadata_decode_value (ptr, &ptr);
5524 /* read custom marshaler type name */
5525 len = mono_metadata_decode_value (ptr, &ptr);
5526 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5528 /* read cookie string */
5529 len = mono_metadata_decode_value (ptr, &ptr);
5530 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5531 res->data.custom_data.image = parent_image;
5534 if (res->native == MONO_NATIVE_SAFEARRAY) {
5535 res->data.safearray_data.elem_type = 0;
5536 res->data.safearray_data.num_elem = 0;
5537 if (ptr - start <= len)
5538 res->data.safearray_data.elem_type = *ptr++;
5539 if (ptr - start <= len)
5540 res->data.safearray_data.num_elem = *ptr++;
5546 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5548 if (spec->native == MONO_NATIVE_CUSTOM) {
5549 g_free (spec->data.custom_data.custom_name);
5550 g_free (spec->data.custom_data.cookie);
5556 * mono_type_to_unmanaged:
5558 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5559 * describing the underlying native reprensetation of the type.
5561 * In addition the value pointed by
5562 * "conv" will contain the kind of marshalling required for this
5563 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5566 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5567 gboolean unicode, MonoMarshalConv *conv)
5569 MonoMarshalConv dummy_conv;
5575 *conv = MONO_MARSHAL_CONV_NONE;
5578 return MONO_NATIVE_UINT;
5582 case MONO_TYPE_BOOLEAN:
5584 switch (mspec->native) {
5585 case MONO_NATIVE_VARIANTBOOL:
5586 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5587 return MONO_NATIVE_VARIANTBOOL;
5588 case MONO_NATIVE_BOOLEAN:
5589 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5590 return MONO_NATIVE_BOOLEAN;
5591 case MONO_NATIVE_I1:
5592 case MONO_NATIVE_U1:
5593 return mspec->native;
5595 g_error ("cant marshal bool to native type %02x", mspec->native);
5598 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5599 return MONO_NATIVE_BOOLEAN;
5600 case MONO_TYPE_CHAR:
5602 switch (mspec->native) {
5603 case MONO_NATIVE_U2:
5604 case MONO_NATIVE_U1:
5605 return mspec->native;
5607 g_error ("cant marshal char to native type %02x", mspec->native);
5610 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5611 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5612 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5613 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5614 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5615 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5616 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5617 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5618 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5619 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5620 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5621 case MONO_TYPE_STRING:
5623 switch (mspec->native) {
5624 case MONO_NATIVE_BSTR:
5625 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5626 return MONO_NATIVE_BSTR;
5627 case MONO_NATIVE_LPSTR:
5628 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5629 return MONO_NATIVE_LPSTR;
5630 case MONO_NATIVE_LPWSTR:
5631 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5632 return MONO_NATIVE_LPWSTR;
5633 case MONO_NATIVE_LPTSTR:
5634 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5635 return MONO_NATIVE_LPTSTR;
5636 case MONO_NATIVE_ANSIBSTR:
5637 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5638 return MONO_NATIVE_ANSIBSTR;
5639 case MONO_NATIVE_TBSTR:
5640 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5641 return MONO_NATIVE_TBSTR;
5642 case MONO_NATIVE_BYVALTSTR:
5644 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5646 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5647 return MONO_NATIVE_BYVALTSTR;
5649 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);
5653 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5654 return MONO_NATIVE_LPWSTR;
5657 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5658 return MONO_NATIVE_LPSTR;
5660 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5661 case MONO_TYPE_VALUETYPE: /*FIXME*/
5662 if (type->data.klass->enumtype) {
5663 t = mono_class_enum_basetype (type->data.klass)->type;
5666 if (type->data.klass == mono_defaults.handleref_class){
5667 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5668 return MONO_NATIVE_INT;
5670 return MONO_NATIVE_STRUCT;
5671 case MONO_TYPE_SZARRAY:
5672 case MONO_TYPE_ARRAY:
5674 switch (mspec->native) {
5675 case MONO_NATIVE_BYVALARRAY:
5676 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5677 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5679 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5680 return MONO_NATIVE_BYVALARRAY;
5681 case MONO_NATIVE_SAFEARRAY:
5682 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5683 return MONO_NATIVE_SAFEARRAY;
5684 case MONO_NATIVE_LPARRAY:
5685 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5686 return MONO_NATIVE_LPARRAY;
5688 g_error ("cant marshal array as native type %02x", mspec->native);
5692 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5693 return MONO_NATIVE_LPARRAY;
5694 case MONO_TYPE_I: return MONO_NATIVE_INT;
5695 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5696 case MONO_TYPE_CLASS:
5697 case MONO_TYPE_OBJECT: {
5698 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5700 switch (mspec->native) {
5701 case MONO_NATIVE_STRUCT:
5702 return MONO_NATIVE_STRUCT;
5703 case MONO_NATIVE_CUSTOM:
5704 return MONO_NATIVE_CUSTOM;
5705 case MONO_NATIVE_INTERFACE:
5706 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5707 return MONO_NATIVE_INTERFACE;
5708 case MONO_NATIVE_IDISPATCH:
5709 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5710 return MONO_NATIVE_IDISPATCH;
5711 case MONO_NATIVE_IUNKNOWN:
5712 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5713 return MONO_NATIVE_IUNKNOWN;
5714 case MONO_NATIVE_FUNC:
5715 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5716 type->data.klass == mono_defaults.delegate_class ||
5717 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5718 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5719 return MONO_NATIVE_FUNC;
5723 g_error ("cant marshal object as native type %02x", mspec->native);
5726 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5727 type->data.klass == mono_defaults.delegate_class ||
5728 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5729 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5730 return MONO_NATIVE_FUNC;
5732 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5733 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5734 return MONO_NATIVE_INT;
5736 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5737 return MONO_NATIVE_STRUCT;
5739 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5740 case MONO_TYPE_GENERICINST:
5741 type = &type->data.generic_class->container_class->byval_arg;
5744 case MONO_TYPE_TYPEDBYREF:
5746 g_error ("type 0x%02x not handled in marshal", t);
5748 return MONO_NATIVE_MAX;
5752 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5755 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5761 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5762 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5764 /* FIXME: Index translation */
5766 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5769 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5773 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error)
5775 MonoMethod *result = NULL;
5776 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5778 mono_error_init (error);
5780 switch (tok & MONO_METHODDEFORREF_MASK) {
5781 case MONO_METHODDEFORREF_METHODDEF:
5782 result = mono_get_method_checked (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context, error);
5784 case MONO_METHODDEFORREF_METHODREF:
5785 result = mono_get_method_checked (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context, error);
5788 mono_error_set_bad_image (error, m, "Invalid MethodDefOfRef token %x", tok);
5795 * mono_class_get_overrides_full:
5797 * Return the method overrides belonging to class @type_token in @overrides, and
5798 * the number of overrides in @num_overrides.
5800 * Returns: TRUE on success, FALSE on failure.
5803 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5804 MonoGenericContext *generic_context)
5808 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5811 guint32 cols [MONO_METHODIMPL_SIZE];
5812 MonoMethod **result;
5823 loc.col_idx = MONO_METHODIMPL_CLASS;
5824 loc.idx = mono_metadata_token_index (type_token);
5826 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5832 * We may end up in the middle of the rows...
5835 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5840 while (end < tdef->rows) {
5841 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5847 result = g_new (MonoMethod*, num * 2);
5848 for (i = 0; i < num; ++i) {
5851 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
5852 mono_error_cleanup (&error); /* FIXME don't swallow the error */
5857 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5858 method = method_from_method_def_or_ref (
5859 image, cols [MONO_METHODIMPL_DECLARATION], generic_context, &error);
5860 if (method == NULL) {
5861 mono_error_cleanup (&error); /* FIXME don't swallow the error */
5864 result [i * 2] = method;
5865 method = method_from_method_def_or_ref (
5866 image, cols [MONO_METHODIMPL_BODY], generic_context, &error);
5867 if (method == NULL) {
5868 mono_error_cleanup (&error); /* FIXME don't swallow the error */
5871 result [i * 2 + 1] = method;
5874 *overrides = result;
5876 *num_overrides = num;
5881 * mono_guid_to_string:
5883 * Converts a 16 byte Microsoft GUID to the standard string representation.
5886 mono_guid_to_string (const guint8 *guid)
5888 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5889 guid[3], guid[2], guid[1], guid[0],
5893 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
5897 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container, MonoError *error)
5899 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
5900 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
5901 guint32 i, token, found;
5902 MonoClass *klass, **res;
5903 GSList *cons = NULL, *tmp;
5904 MonoGenericContext *context = &container->context;
5906 mono_error_init (error);
5908 *constraints = NULL;
5910 for (i = 0; i < tdef->rows; ++i) {
5911 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
5912 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
5913 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
5914 klass = mono_class_get_and_inflate_typespec_checked (image, token, context, error);
5916 g_slist_free (cons);
5919 cons = g_slist_append (cons, klass);
5922 /* contiguous list finished */
5929 res = mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
5930 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
5931 res [i] = tmp->data;
5933 g_slist_free (cons);
5939 * mono_metadata_get_generic_param_row:
5942 * @token: TypeOrMethodDef token, owner for GenericParam
5943 * @owner: coded token, set on return
5945 * Returns: 1-based row-id in the GenericParam table whose
5946 * owner is @token. 0 if not found.
5949 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
5951 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5958 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
5959 *owner = MONO_TYPEORMETHOD_TYPE;
5960 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5961 *owner = MONO_TYPEORMETHOD_METHOD;
5963 g_error ("wrong token %x to get_generic_param_row", token);
5966 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
5969 loc.col_idx = MONO_GENERICPARAM_OWNER;
5972 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5975 /* Find the first entry by searching backwards */
5976 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
5979 return loc.result + 1;
5983 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
5986 return mono_metadata_get_generic_param_row (image, token, &owner);
5990 * Memory is allocated from IMAGE's mempool.
5993 mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
5994 MonoGenericContainer *container, MonoError *error)
5997 guint32 start_row, i, owner;
5998 mono_error_init (error);
6000 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
6002 for (i = 0; i < container->type_argc; i++) {
6003 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container, error)) {
6004 g_assert (!mono_loader_get_last_error ());
6012 * mono_metadata_load_generic_params:
6014 * Load the type parameters from the type or method definition @token.
6016 * Use this method after parsing a type or method definition to figure out whether it's a generic
6017 * type / method. When parsing a method definition, @parent_container points to the generic container
6018 * of the current class, if any.
6020 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
6021 * creating the type.
6023 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
6025 * LOCKING: Acquires the loader lock
6028 MonoGenericContainer *
6029 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
6031 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6032 guint32 cols [MONO_GENERICPARAM_SIZE];
6033 guint32 i, owner = 0, n;
6034 MonoGenericContainer *container;
6035 MonoGenericParamFull *params;
6036 MonoGenericContext *context;
6038 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
6040 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6043 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
6044 container->image = image;
6047 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
6048 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
6049 params [n - 1].param.owner = container;
6050 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
6051 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
6052 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
6053 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
6054 if (params [n - 1].param.num != n - 1)
6055 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
6056 if (++i > tdef->rows)
6058 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6059 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
6061 container->type_argc = n;
6062 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
6063 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
6065 container->parent = parent_container;
6067 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6068 container->is_method = 1;
6070 g_assert (container->parent == NULL || container->is_method);
6072 context = &container->context;
6073 if (container->is_method) {
6074 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
6075 context->method_inst = mono_get_shared_generic_inst (container);
6077 context->class_inst = mono_get_shared_generic_inst (container);
6084 mono_get_shared_generic_inst (MonoGenericContainer *container)
6086 MonoType **type_argv;
6088 MonoGenericInst *nginst;
6091 type_argv = g_new0 (MonoType *, container->type_argc);
6092 helper = g_new0 (MonoType, container->type_argc);
6094 for (i = 0; i < container->type_argc; i++) {
6095 MonoType *t = &helper [i];
6097 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
6098 t->data.generic_param = mono_generic_container_get_param (container, i);
6103 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
6112 * mono_type_is_byref:
6113 * @type: the MonoType operated on
6115 * Returns: #TRUE if @type represents a type passed by reference,
6119 mono_type_is_byref (MonoType *type)
6125 * mono_type_get_type:
6126 * @type: the MonoType operated on
6128 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
6129 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
6132 mono_type_get_type (MonoType *type)
6138 * mono_type_get_signature:
6139 * @type: the MonoType operated on
6141 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
6143 * Returns: the MonoMethodSignature pointer that describes the signature
6144 * of the function pointer @type represents.
6146 MonoMethodSignature*
6147 mono_type_get_signature (MonoType *type)
6149 g_assert (type->type == MONO_TYPE_FNPTR);
6150 return type->data.method;
6154 * mono_type_get_class:
6155 * @type: the MonoType operated on
6157 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
6158 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
6161 * Returns: the MonoClass pointer that describes the class that @type represents.
6164 mono_type_get_class (MonoType *type)
6166 /* FIXME: review the runtime users before adding the assert here */
6167 return type->data.klass;
6171 * mono_type_get_array_type:
6172 * @type: the MonoType operated on
6174 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6176 * Returns: a MonoArrayType struct describing the array type that @type
6177 * represents. The info includes details such as rank, array element type
6178 * and the sizes and bounds of multidimensional arrays.
6181 mono_type_get_array_type (MonoType *type)
6183 return type->data.array;
6187 * mono_type_get_ptr_type:
6188 * @type: the MonoType operated on
6190 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6193 * Returns: the MonoType pointer that describes the type that @type
6194 * represents a pointer to.
6197 mono_type_get_ptr_type (MonoType *type)
6199 g_assert (type->type == MONO_TYPE_PTR);
6200 return type->data.type;
6204 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6206 /* FIXME: implement */
6211 * mono_type_is_struct:
6212 * @type: the MonoType operated on
6214 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6215 * or a basic type like System.Int32. #FALSE otherwise.
6218 mono_type_is_struct (MonoType *type)
6220 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6221 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6222 ((type->type == MONO_TYPE_GENERICINST) &&
6223 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6224 !type->data.generic_class->container_class->enumtype)));
6228 * mono_type_is_void:
6229 * @type: the MonoType operated on
6231 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6234 mono_type_is_void (MonoType *type)
6236 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6240 * mono_type_is_pointer:
6241 * @type: the MonoType operated on
6243 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6246 mono_type_is_pointer (MonoType *type)
6248 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6249 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6250 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6251 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6252 (type->type == MONO_TYPE_FNPTR)));
6256 * mono_type_is_reference:
6257 * @type: the MonoType operated on
6259 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6262 mono_type_is_reference (MonoType *type)
6264 return (type && (((type->type == MONO_TYPE_STRING) ||
6265 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6266 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6267 ((type->type == MONO_TYPE_GENERICINST) &&
6268 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6272 * mono_signature_get_return_type:
6273 * @sig: the method signature inspected
6275 * Returns: the return type of the method signature @sig
6278 mono_signature_get_return_type (MonoMethodSignature *sig)
6284 * mono_signature_get_params:
6285 * @sig: the method signature inspected
6286 * #iter: pointer to an iterator
6288 * Iterates over the parameters for the method signature @sig.
6289 * A void* pointer must be initualized to #NULL to start the iteration
6290 * and it's address is passed to this function repeteadly until it returns
6293 * Returns: the next parameter type of the method signature @sig,
6294 * #NULL when finished.
6297 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6303 /* start from the first */
6304 if (sig->param_count) {
6305 *iter = &sig->params [0];
6306 return sig->params [0];
6314 if (type < &sig->params [sig->param_count]) {
6322 * mono_signature_get_param_count:
6323 * @sig: the method signature inspected
6325 * Returns: the number of parameters in the method signature @sig.
6328 mono_signature_get_param_count (MonoMethodSignature *sig)
6330 return sig->param_count;
6334 * mono_signature_get_call_conv:
6335 * @sig: the method signature inspected
6337 * Returns: the call convention of the method signature @sig.
6340 mono_signature_get_call_conv (MonoMethodSignature *sig)
6342 return sig->call_convention;
6346 * mono_signature_vararg_start:
6347 * @sig: the method signature inspected
6349 * Returns: the number of the first vararg parameter in the
6350 * method signature @sig. -1 if this is not a vararg signature.
6353 mono_signature_vararg_start (MonoMethodSignature *sig)
6355 return sig->sentinelpos;
6359 * mono_signature_is_instance:
6360 * @sig: the method signature inspected
6362 * Returns: #TRUE if this the method signature @sig has an implicit
6363 * first instance argument. #FALSE otherwise.
6366 mono_signature_is_instance (MonoMethodSignature *sig)
6368 return sig->hasthis;
6372 * mono_signature_param_is_out
6373 * @sig: the method signature inspected
6374 * @param_num: the 0-based index of the inspected parameter
6376 * Returns: #TRUE if the parameter is an out parameter, #FALSE
6380 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6382 g_assert (param_num >= 0 && param_num < sig->param_count);
6383 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6387 * mono_signature_explicit_this:
6388 * @sig: the method signature inspected
6390 * Returns: #TRUE if this the method signature @sig has an explicit
6391 * instance argument. #FALSE otherwise.
6394 mono_signature_explicit_this (MonoMethodSignature *sig)
6396 return sig->explicit_this;
6399 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6401 mono_aligned_addr_hash (gconstpointer ptr)
6403 return GPOINTER_TO_UINT (ptr) >> 3;
6407 * If @field belongs to an inflated generic class, return the corresponding field of the
6408 * generic type definition class.
6411 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6416 if (!field->parent->generic_class)
6419 gtd = field->parent->generic_class->container_class;
6420 offset = field - field->parent->fields;
6421 return gtd->fields + offset;
6425 * If @event belongs to an inflated generic class, return the corresponding event of the
6426 * generic type definition class.
6429 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6434 if (!event->parent->generic_class)
6437 gtd = event->parent->generic_class->container_class;
6438 offset = event - event->parent->ext->events;
6439 return gtd->ext->events + offset;
6443 * If @property belongs to an inflated generic class, return the corresponding property of the
6444 * generic type definition class.
6447 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6452 if (!property->parent->generic_class)
6455 gtd = property->parent->generic_class->container_class;
6456 offset = property - property->parent->ext->properties;
6457 return gtd->ext->properties + offset;