2 * metadata.c: Routines for accessing the metadata
5 * Miguel de Icaza (miguel@ximian.com)
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
21 #include "tabledefs.h"
22 #include "mono-endian.h"
24 #include "tokentype.h"
25 #include "metadata-internals.h"
26 #include "class-internals.h"
27 #include "verify-internals.h"
30 #include "gc-internal.h"
31 #include <mono/utils/mono-error-internals.h>
33 /* Auxiliary structure used for caching inflated signatures */
35 MonoMethodSignature *sig;
36 MonoGenericContext context;
37 } MonoInflatedMethodSignature;
39 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
40 const char *ptr, const char **rptr);
42 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
43 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
44 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
45 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
46 gboolean signature_only);
47 static GSList* free_generic_inst_dependents (MonoGenericInst *ginst);
48 static void free_generic_inst (MonoGenericInst *ginst);
49 static GSList* free_generic_class_dependents (MonoGenericClass *ginst);
50 static void free_generic_class (MonoGenericClass *ginst);
51 static void free_inflated_method (MonoMethodInflated *method);
52 static void free_inflated_signature (MonoInflatedMethodSignature *sig);
53 static void mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva, MonoMarshalSpec **marshal_spec, gboolean alloc_from_image);
56 * This enumeration is used to describe the data types in the metadata
67 /* Index into Blob heap */
70 /* Index into String heap */
76 /* Pointer into a table */
79 /* HasConstant:Parent pointer (Param, Field or Property) */
82 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
85 /* CustomAttributeType encoded index */
88 /* HasDeclSecurity index: TypeDef Method or Assembly */
91 /* Implementation coded index: File, Export AssemblyRef */
94 /* HasFieldMarshal coded index: Field or Param table */
97 /* MemberForwardedIndex: Field or Method */
100 /* TypeDefOrRef coded index: typedef, typeref, typespec */
103 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
106 /* MethodDefOrRef coded index: Method or Member Ref table */
109 /* HasSemantic coded index: Event or Property */
112 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
116 const static unsigned char TableSchemas [] = {
117 #define ASSEMBLY_SCHEMA_OFFSET 0
118 MONO_MT_UINT32, /* "HashId" }, */
119 MONO_MT_UINT16, /* "Major" }, */
120 MONO_MT_UINT16, /* "Minor" }, */
121 MONO_MT_UINT16, /* "BuildNumber" }, */
122 MONO_MT_UINT16, /* "RevisionNumber" }, */
123 MONO_MT_UINT32, /* "Flags" }, */
124 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
125 MONO_MT_STRING_IDX, /* "Name" }, */
126 MONO_MT_STRING_IDX, /* "Culture" }, */
129 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
130 MONO_MT_UINT32, /* "OSPlatformID" }, */
131 MONO_MT_UINT32, /* "OSMajor" }, */
132 MONO_MT_UINT32, /* "OSMinor" }, */
135 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
136 MONO_MT_UINT32, /* "Processor" }, */
139 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
140 MONO_MT_UINT16, /* "Major" }, */
141 MONO_MT_UINT16, /* "Minor" }, */
142 MONO_MT_UINT16, /* "Build" }, */
143 MONO_MT_UINT16, /* "Revision" }, */
144 MONO_MT_UINT32, /* "Flags" }, */
145 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
146 MONO_MT_STRING_IDX, /* "Name" }, */
147 MONO_MT_STRING_IDX, /* "Culture" }, */
148 MONO_MT_BLOB_IDX, /* "HashValue" }, */
151 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
152 MONO_MT_UINT32, /* "OSPlatformID" }, */
153 MONO_MT_UINT32, /* "OSMajorVersion" }, */
154 MONO_MT_UINT32, /* "OSMinorVersion" }, */
155 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
158 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
159 MONO_MT_UINT32, /* "Processor" }, */
160 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
163 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
164 MONO_MT_UINT16, /* "PackingSize" }, */
165 MONO_MT_UINT32, /* "ClassSize" }, */
166 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
169 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
170 MONO_MT_UINT8, /* "Type" }, */
171 MONO_MT_UINT8, /* "PaddingZero" }, */
172 MONO_MT_CONST_IDX, /* "Parent" }, */
173 MONO_MT_BLOB_IDX, /* "Value" }, */
176 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
177 MONO_MT_HASCAT_IDX, /* "Parent" }, */
178 MONO_MT_CAT_IDX, /* "Type" }, */
179 MONO_MT_BLOB_IDX, /* "Value" }, */
182 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
183 MONO_MT_UINT16, /* "Action" }, */
184 MONO_MT_HASDEC_IDX, /* "Parent" }, */
185 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
188 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
189 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
190 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
193 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
194 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
195 MONO_MT_STRING_IDX, /* "Name" }, */
196 MONO_MT_TDOR_IDX, /* "EventType" }, TypeDef or TypeRef or TypeSpec */
199 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
200 MONO_MT_TABLE_IDX, /* "Event" }, */
203 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
204 MONO_MT_UINT32, /* "Flags" }, */
205 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
206 MONO_MT_STRING_IDX, /* "TypeName" }, */
207 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
208 MONO_MT_IMPL_IDX, /* "Implementation" }, */
211 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
212 MONO_MT_UINT16, /* "Flags" }, */
213 MONO_MT_STRING_IDX, /* "Name" }, */
214 MONO_MT_BLOB_IDX, /* "Signature" }, */
217 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
218 MONO_MT_UINT32, /* "Offset" }, */
219 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
222 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
223 MONO_MT_HFM_IDX, /* "Parent" }, */
224 MONO_MT_BLOB_IDX, /* "NativeType" }, */
227 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
228 MONO_MT_UINT32, /* "RVA" }, */
229 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
232 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
233 MONO_MT_TABLE_IDX, /* "Field" }, */
236 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
237 MONO_MT_UINT32, /* "Flags" }, */
238 MONO_MT_STRING_IDX, /* "Name" }, */
239 MONO_MT_BLOB_IDX, /* "Value" }, */
242 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
243 MONO_MT_UINT16, /* "MappingFlag" }, */
244 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
245 MONO_MT_STRING_IDX, /* "ImportName" }, */
246 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
249 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
250 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
251 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
254 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
255 MONO_MT_UINT32, /* "Offset" }, */
256 MONO_MT_UINT32, /* "Flags" }, */
257 MONO_MT_STRING_IDX, /* "Name" }, */
258 MONO_MT_IMPL_IDX, /* "Implementation" }, */
261 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
262 MONO_MT_MRP_IDX, /* "Class" }, */
263 MONO_MT_STRING_IDX, /* "Name" }, */
264 MONO_MT_BLOB_IDX, /* "Signature" }, */
267 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
268 MONO_MT_UINT32, /* "RVA" }, */
269 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
270 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
271 MONO_MT_STRING_IDX, /* "Name" }, */
272 MONO_MT_BLOB_IDX, /* "Signature" }, */
273 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
276 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
277 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
278 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
279 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
282 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
283 MONO_MT_UINT16, /* "MethodSemantic" }, */
284 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
285 MONO_MT_HS_IDX, /* "Association" }, */
288 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
289 MONO_MT_TABLE_IDX, /* "Method" }, */
292 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
293 MONO_MT_UINT16, /* "Generation" }, */
294 MONO_MT_STRING_IDX, /* "Name" }, */
295 MONO_MT_GUID_IDX, /* "MVID" }, */
296 MONO_MT_GUID_IDX, /* "EncID" }, */
297 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
300 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
301 MONO_MT_STRING_IDX, /* "Name" }, */
304 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
305 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
306 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
309 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
310 MONO_MT_UINT16, /* "Flags" }, */
311 MONO_MT_UINT16, /* "Sequence" }, */
312 MONO_MT_STRING_IDX, /* "Name" }, */
315 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
316 MONO_MT_TABLE_IDX, /* "Param" }, */
319 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
320 MONO_MT_UINT16, /* "Flags" }, */
321 MONO_MT_STRING_IDX, /* "Name" }, */
322 MONO_MT_BLOB_IDX, /* "Type" }, */
325 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
326 MONO_MT_TABLE_IDX, /* "Property" }, */
329 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
330 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
331 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
334 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
335 MONO_MT_BLOB_IDX, /* "Signature" }, */
338 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
339 MONO_MT_UINT32, /* "Flags" }, */
340 MONO_MT_STRING_IDX, /* "Name" }, */
341 MONO_MT_STRING_IDX, /* "Namespace" }, */
342 MONO_MT_TDOR_IDX, /* "Extends" }, */
343 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
344 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
347 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
348 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
349 MONO_MT_STRING_IDX, /* "Name" }, */
350 MONO_MT_STRING_IDX, /* "Namespace" }, */
353 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
354 MONO_MT_BLOB_IDX, /* "Signature" }, */
357 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
358 MONO_MT_UINT16, /* "Number" }, */
359 MONO_MT_UINT16, /* "Flags" }, */
360 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
361 MONO_MT_STRING_IDX, /* "Name" }, */
364 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
365 MONO_MT_MDOR_IDX, /* "Method" }, */
366 MONO_MT_BLOB_IDX, /* "Signature" }, */
369 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
370 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
371 MONO_MT_TDOR_IDX, /* "Constraint" }, */
374 #define NULL_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
378 /* Must be the same order as MONO_TABLE_* */
379 const static unsigned char
380 table_description [] = {
381 MODULE_SCHEMA_OFFSET,
382 TYPEREF_SCHEMA_OFFSET,
383 TYPEDEF_SCHEMA_OFFSET,
384 FIELD_POINTER_SCHEMA_OFFSET,
386 METHOD_POINTER_SCHEMA_OFFSET,
387 METHOD_SCHEMA_OFFSET,
388 PARAM_POINTER_SCHEMA_OFFSET,
390 IFACEMAP_SCHEMA_OFFSET,
391 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
392 CONSTANT_SCHEMA_OFFSET,
393 CUSTOM_ATTR_SCHEMA_OFFSET,
394 FIELD_MARSHAL_SCHEMA_OFFSET,
395 DECL_SEC_SCHEMA_OFFSET,
396 CLASS_LAYOUT_SCHEMA_OFFSET,
397 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
398 STDALON_SIG_SCHEMA_OFFSET,
399 EVENTMAP_SCHEMA_OFFSET,
400 EVENT_POINTER_SCHEMA_OFFSET,
402 PROPERTY_MAP_SCHEMA_OFFSET,
403 PROPERTY_POINTER_SCHEMA_OFFSET,
404 PROPERTY_SCHEMA_OFFSET,
405 METHOD_SEMA_SCHEMA_OFFSET,
406 METHOD_IMPL_SCHEMA_OFFSET,
407 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
408 TYPESPEC_SCHEMA_OFFSET,
409 IMPLMAP_SCHEMA_OFFSET,
410 FIELD_RVA_SCHEMA_OFFSET,
413 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
414 ASSEMBLYPROC_SCHEMA_OFFSET,
415 ASSEMBLYOS_SCHEMA_OFFSET,
416 ASSEMBLYREF_SCHEMA_OFFSET,
417 ASSEMBLYREFPROC_SCHEMA_OFFSET,
418 ASSEMBLYREFOS_SCHEMA_OFFSET,
420 EXPORTED_TYPE_SCHEMA_OFFSET,
421 MANIFEST_SCHEMA_OFFSET,
422 NESTED_CLASS_SCHEMA_OFFSET,
423 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
424 METHOD_SPEC_SCHEMA_OFFSET,
425 GEN_CONSTRAINT_SCHEMA_OFFSET
428 #ifdef HAVE_ARRAY_ELEM_INIT
429 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
430 #define MSGSTRFIELD1(line) str##line
431 static const struct msgstr_t {
432 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
433 #include "mono/cil/tables.def"
436 #define TABLEDEF(a,b) b,
437 #include "mono/cil/tables.def"
440 static const gint16 tableidx [] = {
441 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
442 #include "mono/cil/tables.def"
447 #define TABLEDEF(a,b) b,
448 static const char* const
449 mono_tables_names [] = {
450 #include "mono/cil/tables.def"
457 * mono_meta_table_name:
458 * @table: table index
460 * Returns the name of the given ECMA metadata logical format table
461 * as described in ECMA 335, Partition II, Section 22.
463 * Returns: the name for the @table index
466 mono_meta_table_name (int table)
468 if ((table < 0) || (table > MONO_TABLE_LAST))
471 #ifdef HAVE_ARRAY_ELEM_INIT
472 return (const char*)&tablestr + tableidx [table];
474 return mono_tables_names [table];
478 /* The guy who wrote the spec for this should not be allowed near a
481 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
482 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
483 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
484 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
485 inverse of this mapping.
488 #define rtsize(s,b) (((s) < (1 << (b)) ? 2 : 4))
489 #define idx_size(tableidx) (meta->tables [(tableidx)].rows < 65536 ? 2 : 4)
491 /* Reference: Partition II - 23.2.6 */
493 * mono_metadata_compute_size:
494 * @meta: metadata context
495 * @tableindex: metadata table number
496 * @result_bitfield: pointer to guint32 where to store additional info
498 * mono_metadata_compute_size() computes the lenght in bytes of a single
499 * row in a metadata table. The size of each column is encoded in the
500 * @result_bitfield return value along with the number of columns in the table.
501 * the resulting bitfield should be handed to the mono_metadata_table_size()
502 * and mono_metadata_table_count() macros.
503 * This is a Mono runtime internal only function.
506 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
508 guint32 bitfield = 0;
509 int size = 0, field_size = 0;
512 const unsigned char *description = TableSchemas + table_description [tableindex];
514 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
517 field_size = 4; break;
520 field_size = 2; break;
523 field_size = 1; break;
525 case MONO_MT_BLOB_IDX:
526 field_size = meta->idx_blob_wide ? 4 : 2; break;
528 case MONO_MT_STRING_IDX:
529 field_size = meta->idx_string_wide ? 4 : 2; break;
531 case MONO_MT_GUID_IDX:
532 field_size = meta->idx_guid_wide ? 4 : 2; break;
534 case MONO_MT_TABLE_IDX:
535 /* Uhm, a table index can point to other tables besides the current one
536 * so, it's not correct to use the rowcount of the current table to
537 * get the size for this column - lupus
539 switch (tableindex) {
540 case MONO_TABLE_ASSEMBLYREFOS:
542 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
543 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
545 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
546 case MONO_TABLE_CLASSLAYOUT:
548 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
549 case MONO_TABLE_EVENTMAP:
550 g_assert (i == 0 || i == 1);
551 field_size = i ? idx_size (MONO_TABLE_EVENT):
552 idx_size(MONO_TABLE_TYPEDEF);
554 case MONO_TABLE_EVENT_POINTER:
556 field_size = idx_size (MONO_TABLE_EVENT); break;
557 case MONO_TABLE_EXPORTEDTYPE:
559 /* the index is in another metadata file, so it must be 4 */
560 field_size = 4; break;
561 case MONO_TABLE_FIELDLAYOUT:
563 field_size = idx_size (MONO_TABLE_FIELD); break;
564 case MONO_TABLE_FIELDRVA:
566 field_size = idx_size (MONO_TABLE_FIELD); break;
567 case MONO_TABLE_FIELD_POINTER:
569 field_size = idx_size (MONO_TABLE_FIELD); break;
570 case MONO_TABLE_IMPLMAP:
572 field_size = idx_size (MONO_TABLE_MODULEREF); break;
573 case MONO_TABLE_INTERFACEIMPL:
575 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
576 case MONO_TABLE_METHOD:
578 field_size = idx_size (MONO_TABLE_PARAM); break;
579 case MONO_TABLE_METHODIMPL:
581 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
582 case MONO_TABLE_METHODSEMANTICS:
584 field_size = idx_size (MONO_TABLE_METHOD); break;
585 case MONO_TABLE_METHOD_POINTER:
587 field_size = idx_size (MONO_TABLE_METHOD); break;
588 case MONO_TABLE_NESTEDCLASS:
589 g_assert (i == 0 || i == 1);
590 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
591 case MONO_TABLE_PARAM_POINTER:
593 field_size = idx_size (MONO_TABLE_PARAM); break;
594 case MONO_TABLE_PROPERTYMAP:
595 g_assert (i == 0 || i == 1);
596 field_size = i ? idx_size (MONO_TABLE_PROPERTY):
597 idx_size(MONO_TABLE_TYPEDEF);
599 case MONO_TABLE_PROPERTY_POINTER:
601 field_size = idx_size (MONO_TABLE_PROPERTY); break;
602 case MONO_TABLE_TYPEDEF:
603 g_assert (i == 4 || i == 5);
604 field_size = i == 4 ? idx_size (MONO_TABLE_FIELD):
605 idx_size(MONO_TABLE_METHOD);
607 case MONO_TABLE_GENERICPARAM:
609 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
610 /*This is a coded token for 2 tables, so takes 1 bit */
611 field_size = rtsize (n, 16 - MONO_TYPEORMETHOD_BITS);
613 case MONO_TABLE_GENERICPARAMCONSTRAINT:
615 field_size = idx_size (MONO_TABLE_GENERICPARAM);
619 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
624 * HasConstant: ParamDef, FieldDef, Property
626 case MONO_MT_CONST_IDX:
627 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
628 meta->tables [MONO_TABLE_FIELD].rows);
629 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
631 /* 2 bits to encode tag */
632 field_size = rtsize (n, 16-2);
636 * HasCustomAttribute: points to any table but
639 case MONO_MT_HASCAT_IDX:
641 * We believe that since the signature and
642 * permission are indexing the Blob heap,
643 * we should consider the blob size first
645 /* I'm not a believer - lupus
646 if (meta->idx_blob_wide){
651 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
652 meta->tables [MONO_TABLE_FIELD].rows);
653 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
654 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
655 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
656 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
657 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
658 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
659 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
660 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
661 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
662 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
663 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
664 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
665 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
666 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
667 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
668 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
669 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
671 /* 5 bits to encode */
672 field_size = rtsize (n, 16-5);
676 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
677 * MemberRef and String.
679 case MONO_MT_CAT_IDX:
680 /* String is a heap, if it is wide, we know the size */
682 if (meta->idx_string_wide){
687 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
688 meta->tables [MONO_TABLE_TYPEDEF].rows);
689 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
690 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
692 /* 3 bits to encode */
693 field_size = rtsize (n, 16-3);
697 * HasDeclSecurity: Typedef, MethodDef, Assembly
699 case MONO_MT_HASDEC_IDX:
700 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
701 meta->tables [MONO_TABLE_METHOD].rows);
702 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
704 /* 2 bits to encode */
705 field_size = rtsize (n, 16-2);
709 * Implementation: File, AssemblyRef, ExportedType
711 case MONO_MT_IMPL_IDX:
712 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
713 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
714 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
716 /* 2 bits to encode tag */
717 field_size = rtsize (n, 16-2);
721 * HasFieldMarshall: FieldDef, ParamDef
723 case MONO_MT_HFM_IDX:
724 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
725 meta->tables [MONO_TABLE_PARAM].rows);
727 /* 1 bit used to encode tag */
728 field_size = rtsize (n, 16-1);
732 * MemberForwarded: FieldDef, MethodDef
735 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
736 meta->tables [MONO_TABLE_METHOD].rows);
738 /* 1 bit used to encode tag */
739 field_size = rtsize (n, 16-1);
743 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
745 * It is TypeDef, _TypeRef_, TypeSpec, instead.
747 case MONO_MT_TDOR_IDX:
748 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
749 meta->tables [MONO_TABLE_TYPEREF].rows);
750 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
752 /* 2 bits to encode */
753 field_size = rtsize (n, 16-2);
757 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
759 case MONO_MT_MRP_IDX:
760 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
761 meta->tables [MONO_TABLE_TYPEREF].rows);
762 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
763 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
764 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
765 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
767 /* 3 bits to encode */
768 field_size = rtsize (n, 16 - 3);
772 * MethodDefOrRef: MethodDef, MemberRef
774 case MONO_MT_MDOR_IDX:
775 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
776 meta->tables [MONO_TABLE_MEMBERREF].rows);
778 /* 1 bit used to encode tag */
779 field_size = rtsize (n, 16-1);
783 * HasSemantics: Property, Event
786 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
787 meta->tables [MONO_TABLE_EVENT].rows);
789 /* 1 bit used to encode tag */
790 field_size = rtsize (n, 16-1);
794 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
797 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
798 meta->tables [MONO_TABLE_MODULEREF].rows);
799 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
800 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
802 /* 2 bits used to encode tag (ECMA spec claims 3) */
803 field_size = rtsize (n, 16 - 2);
808 * encode field size as follows (we just need to
815 bitfield |= (field_size-1) << shift;
818 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
821 *result_bitfield = (i << 24) | bitfield;
826 * mono_metadata_compute_table_bases:
827 * @meta: metadata context to compute table values
829 * Computes the table bases for the metadata structure.
830 * This is an internal function used by the image loader code.
833 mono_metadata_compute_table_bases (MonoImage *meta)
836 const char *base = meta->tables_base;
838 for (i = 0; i < MONO_TABLE_NUM; i++) {
839 MonoTableInfo *table = &meta->tables [i];
840 if (table->rows == 0)
843 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
845 base += table->rows * table->row_size;
850 * mono_metadata_locate:
851 * @meta: metadata context
852 * @table: table code.
853 * @idx: index of element to retrieve from @table.
855 * Returns: a pointer to the @idx element in the metadata table
856 * whose code is @table.
859 mono_metadata_locate (MonoImage *meta, int table, int idx)
861 /* idx == 0 refers always to NULL */
862 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
864 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
868 * mono_metadata_locate_token:
869 * @meta: metadata context
870 * @token: metadata token
872 * Returns: a pointer to the data in the metadata represented by the
876 mono_metadata_locate_token (MonoImage *meta, guint32 token)
878 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
882 * mono_metadata_string_heap:
883 * @meta: metadata context
884 * @index: index into the string heap.
886 * Returns: an in-memory pointer to the @index in the string heap.
889 mono_metadata_string_heap (MonoImage *meta, guint32 index)
891 g_return_val_if_fail (index < meta->heap_strings.size, "");
892 return meta->heap_strings.data + index;
896 * mono_metadata_user_string:
897 * @meta: metadata context
898 * @index: index into the user string heap.
900 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
903 mono_metadata_user_string (MonoImage *meta, guint32 index)
905 g_return_val_if_fail (index < meta->heap_us.size, "");
906 return meta->heap_us.data + index;
910 * mono_metadata_blob_heap:
911 * @meta: metadata context
912 * @index: index into the blob.
914 * Returns: an in-memory pointer to the @index in the Blob heap.
917 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
919 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
920 return meta->heap_blob.data + index;
924 * mono_metadata_guid_heap:
925 * @meta: metadata context
926 * @index: index into the guid heap.
928 * Returns: an in-memory pointer to the @index in the guid heap.
931 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
934 index *= 16; /* adjust for guid size and 1-based index */
935 g_return_val_if_fail (index < meta->heap_guid.size, "");
936 return meta->heap_guid.data + index;
939 static const unsigned char *
940 dword_align (const unsigned char *ptr)
942 #if SIZEOF_VOID_P == 8
943 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
945 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
950 * mono_metadata_decode_row:
951 * @t: table to extract information from.
952 * @idx: index in table.
953 * @res: array of @res_size cols to store the results in
955 * This decompresses the metadata element @idx in table @t
956 * into the guint32 @res array that has res_size elements
959 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
961 guint32 bitfield = t->size_bitfield;
962 int i, count = mono_metadata_table_count (bitfield);
965 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_full:
1249 * @m: a metadata context.
1250 * @ptr: a pointer to an encoded array description.
1251 * @rptr: pointer updated to match the end of the decoded stream
1253 * Decodes the compressed array description found in the metadata @m at @ptr.
1255 * Returns: a #MonoArrayType structure describing the array type
1256 * and dimensions. Memory is allocated from the image mempool.
1258 * LOCKING: Acquires the loader lock
1261 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1262 const char *ptr, const char **rptr)
1265 MonoArrayType *array;
1268 array = mono_image_alloc0 (m, sizeof (MonoArrayType));
1269 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1272 array->eklass = mono_class_from_mono_type (etype);
1273 array->rank = mono_metadata_decode_value (ptr, &ptr);
1275 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1276 if (array->numsizes)
1277 array->sizes = mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1278 for (i = 0; i < array->numsizes; ++i)
1279 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1281 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1282 if (array->numlobounds)
1283 array->lobounds = mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1284 for (i = 0; i < array->numlobounds; ++i)
1285 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1293 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1295 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1299 * mono_metadata_free_array:
1300 * @array: array description
1302 * Frees the array description returned from mono_metadata_parse_array().
1305 mono_metadata_free_array (MonoArrayType *array)
1307 g_free (array->sizes);
1308 g_free (array->lobounds);
1313 * need to add common field and param attributes combinations:
1316 * public static literal
1319 * private static literal
1321 static const MonoType
1323 /* data, attrs, type, nmods, byref, pinned */
1324 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1325 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1326 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1327 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1328 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1329 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1330 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1331 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1332 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1333 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1334 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1335 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1336 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1337 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1338 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1339 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1340 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1341 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1342 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1343 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1344 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1345 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1346 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1347 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1348 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1349 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1350 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1351 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1352 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1353 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1354 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1355 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1356 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1357 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1360 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1362 static GHashTable *type_cache = NULL;
1363 static int next_generic_inst_id = 0;
1365 static guint mono_generic_class_hash (gconstpointer data);
1368 * MonoTypes with modifies are never cached, so we never check or use that field.
1371 mono_type_hash (gconstpointer data)
1373 const MonoType *type = (const MonoType *) data;
1374 if (type->type == MONO_TYPE_GENERICINST)
1375 return mono_generic_class_hash (type->data.generic_class);
1377 return type->type | (type->byref << 8) | (type->attrs << 9);
1381 mono_type_equal (gconstpointer ka, gconstpointer kb)
1383 const MonoType *a = (const MonoType *) ka;
1384 const MonoType *b = (const MonoType *) kb;
1386 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1388 /* need other checks */
1393 mono_metadata_generic_inst_hash (gconstpointer data)
1395 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1399 for (i = 0; i < ginst->type_argc; ++i) {
1401 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1404 return hash ^ (ginst->is_open << 8);
1408 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1412 if (a->id && b->id) {
1415 if (!signature_only)
1419 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1421 for (i = 0; i < a->type_argc; ++i) {
1422 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1429 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1431 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1432 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1434 return mono_generic_inst_equal_full (a, b, FALSE);
1438 mono_generic_class_hash (gconstpointer data)
1440 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1441 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1444 hash += gclass->is_tb_open;
1445 hash += mono_metadata_generic_context_hash (&gclass->context);
1451 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1453 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1454 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1456 return _mono_metadata_generic_class_equal (a, b, FALSE);
1460 * mono_metadata_init:
1462 * Initialize the global variables of this module.
1463 * This is a Mono runtime internal function.
1466 mono_metadata_init (void)
1470 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1472 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1473 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1477 * mono_metadata_cleanup:
1479 * Free all resources used by this module.
1480 * This is a Mono runtime internal function.
1483 mono_metadata_cleanup (void)
1485 g_hash_table_destroy (type_cache);
1490 * mono_metadata_parse_type:
1491 * @m: metadata context
1492 * @mode: king of type that may be found at @ptr
1493 * @opt_attrs: optional attributes to store in the returned type
1494 * @ptr: pointer to the type representation
1495 * @rptr: pointer updated to match the end of the decoded stream
1497 * Decode a compressed type description found at @ptr in @m.
1498 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1499 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1500 * This function can be used to decode type descriptions in method signatures,
1501 * field signatures, locals signatures etc.
1503 * To parse a generic type, `generic_container' points to the current class'es
1504 * (the `generic_container' field in the MonoClass) or the current generic method's
1505 * (the `generic_container' field in the MonoMethodNormal) generic container.
1506 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1507 * this MonoGenericContainer.
1508 * This is a Mono runtime internal function.
1510 * LOCKING: Acquires the loader lock.
1512 * Returns: a #MonoType structure representing the decoded type.
1515 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1516 short opt_attrs, const char *ptr, const char **rptr)
1518 MonoType *type, *cached;
1520 gboolean byref = FALSE;
1521 gboolean pinned = FALSE;
1522 const char *tmp_ptr;
1527 * According to the spec, custom modifiers should come before the byref
1528 * flag, but the IL produced by ilasm from the following signature:
1529 * object modopt(...) &
1530 * starts with a byref flag, followed by the modifiers. (bug #49802)
1531 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1532 * it would be better to treat byref as real type constructor instead of
1534 * Also, pinned should come before anything else, but some MSV++ produced
1535 * assemblies violate this (#bug 61990).
1538 /* Count the modifiers first */
1543 case MONO_TYPE_PINNED:
1544 case MONO_TYPE_BYREF:
1547 case MONO_TYPE_CMOD_REQD:
1548 case MONO_TYPE_CMOD_OPT:
1550 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1558 type = mono_image_alloc0 (m, MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod));
1559 type->num_mods = count;
1561 g_warning ("got more than 64 modifiers in type");
1564 memset (type, 0, MONO_SIZEOF_TYPE);
1567 /* Parse pinned, byref and custom modifiers */
1572 case MONO_TYPE_PINNED:
1576 case MONO_TYPE_BYREF:
1580 case MONO_TYPE_CMOD_REQD:
1581 case MONO_TYPE_CMOD_OPT:
1582 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1590 type->attrs = opt_attrs;
1591 type->byref = byref;
1592 type->pinned = pinned ? 1 : 0;
1594 if (!do_mono_metadata_parse_type (type, m, container, ptr, &ptr)) {
1601 if (!type->num_mods) {
1602 /* no need to free type here, because it is on the stack */
1603 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1604 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1606 /* Consider the case:
1608 class Foo<T> { class Bar {} }
1609 class Test : Foo<Test>.Bar {}
1611 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1612 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1614 We ensure that the MonoClass is in a state that we can canonicalize to:
1616 klass->byval_arg.data.klass == klass
1617 klass->this_arg.data.klass == klass
1619 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1621 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1622 of a MonoClass which currently holds the loader lock. 'type' is local.
1624 if (ret->data.klass == type->data.klass) {
1628 /* No need to use locking since nobody is modifying the hash table */
1629 if ((cached = g_hash_table_lookup (type_cache, type))) {
1634 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1636 if (type == &stype) {
1637 type = mono_image_alloc (m, MONO_SIZEOF_TYPE);
1638 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1644 * LOCKING: Acquires the loader lock.
1647 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1648 const char *ptr, const char **rptr)
1650 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1654 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1656 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1657 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1658 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1660 if (def < methodt->rows)
1661 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1663 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1665 for (i = param_index; i < lastp; ++i) {
1666 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1675 * mono_metadata_get_param_attrs:
1677 * @m The image to loader parameter attributes from
1678 * @def method def token (one based)
1679 * @param_count number of params to decode including the return value
1681 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1682 * returned memory needs to be freed by the caller. If all the param attributes are
1683 * 0, then NULL is returned.
1686 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1688 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1689 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1690 guint32 cols [MONO_PARAM_SIZE];
1691 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1694 if (def < methodt->rows)
1695 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1697 lastp = paramt->rows + 1;
1699 for (i = param_index; i < lastp; ++i) {
1700 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1701 if (cols [MONO_PARAM_FLAGS]) {
1703 pattrs = g_new0 (int, param_count);
1704 /* at runtime we just ignore this kind of malformed file:
1705 * the verifier can signal the error to the user
1707 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1709 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1717 * mono_metadata_parse_signature_full:
1718 * @image: metadata context
1719 * @generic_container: generic container
1720 * @toke: metadata token
1722 * Decode a method signature stored in the STANDALONESIG table
1724 * LOCKING: Assumes the loader lock is held.
1726 * Returns: a MonoMethodSignature describing the signature.
1728 MonoMethodSignature*
1729 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1731 MonoTableInfo *tables = image->tables;
1732 guint32 idx = mono_metadata_token_index (token);
1737 return mono_lookup_dynamic_token (image, token, NULL);
1739 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1741 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1743 ptr = mono_metadata_blob_heap (image, sig);
1744 mono_metadata_decode_blob_size (ptr, &ptr);
1746 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1750 * mono_metadata_parse_signature:
1751 * @image: metadata context
1752 * @toke: metadata token
1754 * Decode a method signature stored in the STANDALONESIG table
1756 * Returns: a MonoMethodSignature describing the signature.
1758 MonoMethodSignature*
1759 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1761 return mono_metadata_parse_signature_full (image, NULL, token);
1765 * mono_metadata_signature_alloc:
1766 * @image: metadata context
1767 * @nparmas: number of parameters in the signature
1769 * Allocate a MonoMethodSignature structure with the specified number of params.
1770 * The return type and the params types need to be filled later.
1771 * This is a Mono runtime internal function.
1773 * LOCKING: Assumes the loader lock is held.
1775 * Returns: the new MonoMethodSignature structure.
1777 MonoMethodSignature*
1778 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1780 MonoMethodSignature *sig;
1782 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1783 sig->param_count = nparams;
1784 sig->sentinelpos = -1;
1789 static MonoMethodSignature*
1790 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1793 MonoMethodSignature *ret;
1794 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1797 ret = mono_image_alloc (image, sigsize);
1799 ret = mono_mempool_alloc (mp, sigsize);
1801 ret = g_malloc (sigsize);
1803 memcpy (ret, sig, sigsize);
1807 MonoMethodSignature*
1808 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1810 return mono_metadata_signature_dup_internal (image, NULL, sig);
1813 /*The mempool is accessed without synchronization*/
1814 MonoMethodSignature*
1815 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1817 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1821 * mono_metadata_signature_dup:
1822 * @sig: method signature
1824 * Duplicate an existing MonoMethodSignature so it can be modified.
1825 * This is a Mono runtime internal function.
1827 * Returns: the new MonoMethodSignature structure.
1829 MonoMethodSignature*
1830 mono_metadata_signature_dup (MonoMethodSignature *sig)
1832 return mono_metadata_signature_dup_full (NULL, sig);
1836 * mono_metadata_signature_size:
1838 * Return the amount of memory allocated to SIG.
1841 mono_metadata_signature_size (MonoMethodSignature *sig)
1843 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1847 * mono_metadata_parse_method_signature:
1848 * @m: metadata context
1849 * @generic_container: generics container
1850 * @def: the MethodDef index or 0 for Ref signatures.
1851 * @ptr: pointer to the signature metadata representation
1852 * @rptr: pointer updated to match the end of the decoded stream
1854 * Decode a method signature stored at @ptr.
1855 * This is a Mono runtime internal function.
1857 * LOCKING: Assumes the loader lock is held.
1859 * Returns: a MonoMethodSignature describing the signature.
1861 MonoMethodSignature *
1862 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1863 int def, const char *ptr, const char **rptr)
1865 MonoMethodSignature *method;
1866 int i, *pattrs = NULL;
1867 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1868 guint32 gen_param_count = 0;
1869 gboolean is_open = FALSE;
1872 gen_param_count = 1;
1877 call_convention = *ptr & 0x0F;
1879 if (gen_param_count)
1880 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1881 param_count = mono_metadata_decode_value (ptr, &ptr);
1884 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 */
1886 method = mono_metadata_signature_alloc (m, param_count);
1887 method->hasthis = hasthis;
1888 method->explicit_this = explicit_this;
1889 method->call_convention = call_convention;
1890 method->generic_param_count = gen_param_count;
1892 if (call_convention != 0xa) {
1893 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1895 mono_metadata_free_method_signature (method);
1899 is_open = mono_class_is_open_constructed_type (method->ret);
1902 for (i = 0; i < method->param_count; ++i) {
1903 if (*ptr == MONO_TYPE_SENTINEL) {
1904 if (method->call_convention != MONO_CALL_VARARG || def) {
1905 g_warning ("found sentinel for methoddef or no vararg method 0x%08x on image %s", def, m->name);
1909 if (method->sentinelpos >= 0) {
1910 g_warning ("found sentinel twice in the same signature for method 0x%08x on image %s", def, m->name);
1914 method->sentinelpos = i;
1917 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1918 if (!method->params [i]) {
1919 mono_metadata_free_method_signature (method);
1924 is_open = mono_class_is_open_constructed_type (method->params [i]);
1927 /* The sentinel could be missing if the caller does not pass any additional arguments */
1928 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1929 method->sentinelpos = method->param_count;
1931 method->has_type_parameters = is_open;
1933 if (def && (method->call_convention == MONO_CALL_VARARG))
1934 method->sentinelpos = method->param_count;
1941 * Add signature to a cache and increase ref count...
1948 * mono_metadata_parse_method_signature:
1949 * @m: metadata context
1950 * @def: the MethodDef index or 0 for Ref signatures.
1951 * @ptr: pointer to the signature metadata representation
1952 * @rptr: pointer updated to match the end of the decoded stream
1954 * Decode a method signature stored at @ptr.
1955 * This is a Mono runtime internal function.
1957 * LOCKING: Assumes the loader lock is held.
1959 * Returns: a MonoMethodSignature describing the signature.
1961 MonoMethodSignature *
1962 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1964 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1968 * mono_metadata_free_method_signature:
1969 * @sig: signature to destroy
1971 * Free the memory allocated in the signature @sig.
1972 * This method needs to be robust and work also on partially-built
1973 * signatures, so it does extra checks.
1976 mono_metadata_free_method_signature (MonoMethodSignature *sig)
1978 /* Everything is allocated from mempools */
1982 mono_metadata_free_type (sig->ret);
1983 for (i = 0; i < sig->param_count; ++i) {
1984 if (sig->params [i])
1985 mono_metadata_free_type (sig->params [i]);
1991 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
1995 /* Allocated in inflate_generic_signature () */
1997 mono_metadata_free_type (sig->ret);
1998 for (i = 0; i < sig->param_count; ++i) {
1999 if (sig->params [i])
2000 mono_metadata_free_type (sig->params [i]);
2006 inflated_method_equal (gconstpointer a, gconstpointer b)
2008 const MonoMethodInflated *ma = a;
2009 const MonoMethodInflated *mb = b;
2010 if (ma->declaring != mb->declaring)
2012 if (ma->method.method.is_mb_open != mb->method.method.is_mb_open)
2014 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2018 inflated_method_hash (gconstpointer a)
2020 const MonoMethodInflated *ma = a;
2021 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring)) + ma->method.method.is_mb_open;
2025 inflated_signature_equal (gconstpointer a, gconstpointer b)
2027 const MonoInflatedMethodSignature *sig1 = a;
2028 const MonoInflatedMethodSignature *sig2 = b;
2030 /* sig->sig is assumed to be canonized */
2031 if (sig1->sig != sig2->sig)
2033 /* The generic instances are canonized */
2034 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2038 inflated_signature_hash (gconstpointer a)
2040 const MonoInflatedMethodSignature *sig = a;
2042 /* sig->sig is assumed to be canonized */
2043 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2047 dump_ginst (MonoGenericInst *ginst)
2052 g_print ("Ginst: <");
2053 for (i = 0; i < ginst->type_argc; ++i) {
2056 name = mono_type_get_name (ginst->type_argv [i]);
2057 g_print ("%s", name);
2063 static gboolean type_in_image (MonoType *type, MonoImage *image);
2066 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2068 gpointer iter = NULL;
2071 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2072 if (type_in_image (p, image))
2075 return type_in_image (mono_signature_get_return_type (sig), image);
2079 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2083 for (i = 0; i < ginst->type_argc; ++i) {
2084 if (type_in_image (ginst->type_argv [i], image))
2092 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2094 return gclass->container_class->image == image ||
2095 ginst_in_image (gclass->context.class_inst, image);
2099 type_in_image (MonoType *type, MonoImage *image)
2102 switch (type->type) {
2103 case MONO_TYPE_GENERICINST:
2104 return gclass_in_image (type->data.generic_class, image);
2106 type = type->data.type;
2108 case MONO_TYPE_SZARRAY:
2109 type = &type->data.klass->byval_arg;
2111 case MONO_TYPE_ARRAY:
2112 type = &type->data.array->eklass->byval_arg;
2114 case MONO_TYPE_FNPTR:
2115 return signature_in_image (type->data.method, image);
2116 case MONO_TYPE_VAR: {
2117 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2119 g_assert (!container->is_method);
2121 * FIXME: The following check is here solely
2122 * for monodis, which uses the internal
2124 * mono_metadata_load_generic_params(). The
2125 * caller of that function needs to fill in
2126 * owner->klass or owner->method of the
2127 * returned struct, but monodis doesn't do
2128 * that. The image unloading depends on that,
2129 * however, so a crash results without this
2132 if (!container->owner.klass)
2133 return container->image == image;
2134 return container->owner.klass->image == image;
2136 return type->data.generic_param->image == image;
2139 case MONO_TYPE_MVAR: {
2140 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2141 if (type->data.generic_param->image == image)
2144 g_assert (container->is_method);
2145 if (!container->owner.method)
2146 /* RefEmit created generic param whose method is not finished */
2147 return container->image == image;
2148 return container->owner.method->klass->image == image;
2150 return type->data.generic_param->image == image;
2154 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2155 return image == mono_class_from_mono_type (type)->image;
2159 static MonoImageSet *mscorlib_image_set;
2160 static GPtrArray *image_sets;
2165 * Return a MonoImageSet representing the set of images in IMAGES.
2167 * LOCKING: Assumes the loader lock is held.
2169 static MonoImageSet*
2170 get_image_set (MonoImage **images, int nimages)
2177 image_sets = g_ptr_array_new ();
2180 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2181 return mscorlib_image_set;
2183 g_assert (nimages > 0);
2184 if (images [0] == mono_defaults.corlib && nimages > 1)
2185 l = images [1]->image_sets;
2187 l = images [0]->image_sets;
2190 for (; l; l = l->next) {
2193 if (set->nimages == nimages) {
2194 for (j = 0; j < nimages; ++j) {
2195 for (k = 0; k < nimages; ++k)
2196 if (set->images [k] == images [j])
2210 set = g_new0 (MonoImageSet, 1);
2211 set->nimages = nimages;
2212 set->images = g_new0 (MonoImage*, nimages);
2213 InitializeCriticalSection (&set->lock);
2214 for (i = 0; i < nimages; ++i)
2215 set->images [i] = images [i];
2216 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2217 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2218 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2219 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2221 for (i = 0; i < nimages; ++i)
2222 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2224 g_ptr_array_add (image_sets, set);
2227 if (nimages == 1 && images [0] == mono_defaults.corlib)
2228 mscorlib_image_set = set;
2234 delete_image_set (MonoImageSet *set)
2238 g_hash_table_destroy (set->gclass_cache);
2239 g_hash_table_destroy (set->ginst_cache);
2240 g_hash_table_destroy (set->gmethod_cache);
2241 g_hash_table_destroy (set->gsignature_cache);
2243 for (i = 0; i < set->nimages; ++i)
2244 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2246 g_ptr_array_remove (image_sets, set);
2249 mono_mempool_destroy (set->mempool);
2250 g_free (set->images);
2251 DeleteCriticalSection (&set->lock);
2256 * Structure used by the collect_..._images functions to store the image list.
2259 MonoImage *image_buf [64];
2261 int nimages, images_len;
2265 collect_data_init (CollectData *data)
2267 data->images = data->image_buf;
2268 data->images_len = 64;
2273 collect_data_free (CollectData *data)
2275 if (data->images != data->image_buf)
2276 g_free (data->images);
2280 enlarge_data (CollectData *data)
2282 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2283 MonoImage **d = g_new (MonoImage *, new_len);
2286 g_assert_not_reached ();
2287 memcpy (d, data->images, data->images_len);
2288 if (data->images != data->image_buf)
2289 g_free (data->images);
2291 data->images_len = new_len;
2295 add_image (MonoImage *image, CollectData *data)
2299 /* The arrays are small, so use a linear search instead of a hash table */
2300 for (i = 0; i < data->nimages; ++i)
2301 if (data->images [i] == image)
2304 if (data->nimages == data->images_len)
2305 enlarge_data (data);
2307 data->images [data->nimages ++] = image;
2311 collect_type_images (MonoType *type, CollectData *data);
2314 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2318 for (i = 0; i < ginst->type_argc; ++i) {
2319 collect_type_images (ginst->type_argv [i], data);
2324 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2326 add_image (gclass->container_class->image, data);
2327 if (gclass->context.class_inst)
2328 collect_ginst_images (gclass->context.class_inst, data);
2332 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2334 gpointer iter = NULL;
2337 collect_type_images (mono_signature_get_return_type (sig), data);
2338 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2339 collect_type_images (p, data);
2343 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2345 collect_signature_images (sig->sig, data);
2346 if (sig->context.class_inst)
2347 collect_ginst_images (sig->context.class_inst, data);
2348 if (sig->context.method_inst)
2349 collect_ginst_images (sig->context.method_inst, data);
2353 collect_method_images (MonoMethodInflated *method, CollectData *data)
2355 add_image (method->declaring->klass->image, data);
2356 if (method->context.class_inst)
2357 collect_ginst_images (method->context.class_inst, data);
2358 if (method->context.method_inst)
2359 collect_ginst_images (method->context.method_inst, data);
2361 if (((MonoMethod*)method)->signature)
2362 collect_signature_images (mono_method_signature ((MonoMethod*)method), data);
2367 collect_type_images (MonoType *type, CollectData *data)
2370 switch (type->type) {
2371 case MONO_TYPE_GENERICINST:
2372 collect_gclass_images (type->data.generic_class, data);
2375 type = type->data.type;
2377 case MONO_TYPE_SZARRAY:
2378 type = &type->data.klass->byval_arg;
2380 case MONO_TYPE_ARRAY:
2381 type = &type->data.array->eklass->byval_arg;
2383 case MONO_TYPE_FNPTR:
2384 //return signature_in_image (type->data.method, image);
2385 g_assert_not_reached ();
2386 case MONO_TYPE_VAR: {
2387 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2389 g_assert (!container->is_method);
2391 * FIXME: The following check is here solely
2392 * for monodis, which uses the internal
2394 * mono_metadata_load_generic_params(). The
2395 * caller of that function needs to fill in
2396 * owner->klass or owner->method of the
2397 * returned struct, but monodis doesn't do
2398 * that. The image unloading depends on that,
2399 * however, so a crash results without this
2402 if (!container->owner.klass)
2403 add_image (container->image, data);
2405 add_image (container->owner.klass->image, data);
2407 add_image (type->data.generic_param->image, data);
2411 case MONO_TYPE_MVAR: {
2412 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2413 if (type->data.generic_param->image)
2414 add_image (type->data.generic_param->image, data);
2416 if (!container->owner.method) {
2417 /* RefEmit created generic param whose method is not finished */
2418 add_image (container->image, data);
2420 g_assert (container->is_method);
2421 add_image (container->owner.method->klass->image, data);
2424 add_image (type->data.generic_param->image, data);
2428 case MONO_TYPE_CLASS:
2429 case MONO_TYPE_VALUETYPE:
2430 add_image (mono_class_from_mono_type (type)->image, data);
2433 add_image (mono_defaults.corlib, data);
2440 } CleanForImageUserData;
2443 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2445 MonoGenericClass *gclass = key;
2446 CleanForImageUserData *user_data = data;
2448 g_assert (gclass_in_image (gclass, user_data->image));
2450 user_data->list = g_slist_prepend (user_data->list, gclass);
2455 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2457 MonoGenericInst *ginst = key;
2458 CleanForImageUserData *user_data = data;
2460 // This doesn't work during corlib compilation
2461 //g_assert (ginst_in_image (ginst, user_data->image));
2463 user_data->list = g_slist_prepend (user_data->list, ginst);
2468 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2470 MonoImage *image = data;
2471 MonoMethodInflated *method = key;
2474 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2475 g_assert (method->declaring->klass->image == image ||
2476 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2477 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2483 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2485 MonoImage *image = data;
2486 MonoInflatedMethodSignature *sig = key;
2488 return signature_in_image (sig->sig, image) ||
2489 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2490 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2494 check_gmethod (gpointer key, gpointer value, gpointer data)
2496 MonoMethodInflated *method = key;
2497 MonoImage *image = data;
2499 if (method->context.class_inst)
2500 g_assert (!ginst_in_image (method->context.class_inst, image));
2501 if (method->context.method_inst)
2502 g_assert (!ginst_in_image (method->context.method_inst, image));
2503 if (((MonoMethod*)method)->signature)
2504 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2510 * Run a consistency check on the image set data structures.
2512 static G_GNUC_UNUSED void
2513 check_image_sets (MonoImage *image)
2516 GSList *l = image->image_sets;
2521 for (i = 0; i < image_sets->len; ++i) {
2522 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2524 if (!g_slist_find (l, set)) {
2525 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2531 mono_metadata_clean_for_image (MonoImage *image)
2533 CleanForImageUserData ginst_data, gclass_data;
2534 GSList *l, *set_list, *free_list = NULL;
2536 //check_image_sets (image);
2538 /* The data structures could reference each other so we delete them in two phases */
2539 ginst_data.image = gclass_data.image = image;
2540 ginst_data.list = gclass_data.list = NULL;
2541 mono_loader_lock ();
2543 /* Collect the items to delete */
2544 /* delete_image_set () modifies the lists so make a copy */
2545 for (l = image->image_sets; l; l = l->next) {
2546 MonoImageSet *set = l->data;
2548 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2549 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2550 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2551 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2554 /* Delete the removed items */
2555 for (l = ginst_data.list; l; l = l->next)
2556 free_list = g_slist_concat (free_generic_inst_dependents (l->data), free_list);
2557 for (l = gclass_data.list; l; l = l->next)
2558 free_list = g_slist_concat (free_generic_class_dependents (l->data), free_list);
2559 g_slist_free (ginst_data.list);
2560 g_slist_free (gclass_data.list);
2561 mono_class_unregister_image_generic_subclasses (image);
2562 /* delete_image_set () modifies the lists so make a copy */
2563 set_list = g_slist_copy (image->image_sets);
2564 for (l = set_list; l; l = l->next) {
2565 MonoImageSet *set = l->data;
2567 delete_image_set (set);
2569 g_slist_free (set_list);
2571 mono_loader_unlock ();
2577 free_inflated_method (MonoMethodInflated *imethod)
2580 MonoMethod *method = (MonoMethod*)imethod;
2582 mono_marshal_free_inflated_wrappers (method);
2584 if (method->signature)
2585 mono_metadata_free_inflated_signature (method->signature);
2587 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))) {
2588 MonoMethodNormal* mn = (MonoMethodNormal*) method;
2589 MonoMethodHeader *header = mn->header;
2592 /* Allocated in inflate_generic_header () */
2593 for (i = 0; i < header->num_locals; ++i)
2594 mono_metadata_free_type (header->locals [i]);
2595 g_free (header->clauses);
2604 free_list_with_data (GSList *l)
2608 l = g_slist_delete_link (l, l);
2613 free_generic_inst_dependents (MonoGenericInst *ginst)
2617 for (i = 0; i < ginst->type_argc; ++i)
2618 mono_metadata_free_type (ginst->type_argv [i]);
2619 return g_slist_prepend (NULL, ginst);
2623 free_generic_inst (MonoGenericInst *ginst)
2625 free_list_with_data (free_generic_inst_dependents (ginst));
2629 free_generic_class_dependents (MonoGenericClass *gclass)
2634 /* FIXME: The dynamic case */
2635 if (gclass->cached_class && !gclass->cached_class->image->dynamic && !mono_generic_class_is_generic_type_definition (gclass)) {
2636 MonoClass *class = gclass->cached_class;
2638 /* Allocated in mono_class_init () */
2639 g_free (class->methods);
2641 g_free (class->ext->properties);
2642 /* Allocated in mono_generic_class_get_class () */
2643 g_free (class->interfaces);
2644 l = g_slist_prepend (l, class);
2645 } else if (gclass->is_dynamic) {
2646 MonoDynamicGenericClass *dgclass = (MonoDynamicGenericClass *)gclass;
2648 for (i = 0; i < dgclass->count_fields; ++i) {
2649 MonoClassField *field = dgclass->fields + i;
2650 mono_metadata_free_type (field->type);
2651 g_free ((char*)field->name);
2653 MONO_GC_UNREGISTER_ROOT (dgclass->field_objects [i]);
2657 g_free (dgclass->methods);
2658 g_free (dgclass->ctors);
2659 g_free (dgclass->fields);
2660 g_free (dgclass->field_objects);
2661 g_free (dgclass->field_generic_types);
2662 if (!mono_generic_class_is_generic_type_definition (gclass))
2663 l = g_slist_prepend (l, gclass->cached_class);
2665 return g_slist_prepend (l, gclass);
2669 free_generic_class (MonoGenericClass *gclass)
2671 free_list_with_data (free_generic_class_dependents (gclass));
2675 free_inflated_signature (MonoInflatedMethodSignature *sig)
2677 mono_metadata_free_inflated_signature (sig->sig);
2682 * LOCKING: assumes the loader lock is held.
2685 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2690 collect_data_init (&data);
2692 collect_method_images (method, &data);
2694 set = get_image_set (data.images, data.nimages);
2696 collect_data_free (&data);
2699 g_hash_table_insert (set->gmethod_cache, method, method);
2703 return g_hash_table_lookup (set->gmethod_cache, method);
2708 * mono_metadata_get_inflated_signature:
2710 * Given an inflated signature and a generic context, return a canonical copy of the
2711 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2713 MonoMethodSignature *
2714 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2716 MonoInflatedMethodSignature helper;
2717 MonoInflatedMethodSignature *res;
2721 mono_loader_lock ();
2724 helper.context.class_inst = context->class_inst;
2725 helper.context.method_inst = context->method_inst;
2727 collect_data_init (&data);
2729 collect_inflated_signature_images (&helper, &data);
2731 set = get_image_set (data.images, data.nimages);
2733 collect_data_free (&data);
2735 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2737 res = g_new0 (MonoInflatedMethodSignature, 1);
2739 res->context.class_inst = context->class_inst;
2740 res->context.method_inst = context->method_inst;
2741 g_hash_table_insert (set->gsignature_cache, res, res);
2744 mono_loader_unlock ();
2749 * mono_metadata_get_generic_inst:
2751 * Given a list of types, return a MonoGenericInst that represents that list.
2752 * The returned MonoGenericInst has its own copy of the list of types. The list
2753 * passed in the argument can be freed, modified or disposed of.
2757 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2759 MonoGenericInst *ginst;
2762 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2766 for (i = 0; i < type_argc; ++i)
2767 if (mono_class_is_open_constructed_type (type_argv [i]))
2769 is_open = (i < type_argc);
2771 ginst = alloca (size);
2773 ginst->is_open = is_open;
2774 ginst->type_argc = type_argc;
2775 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2777 mono_loader_lock ();
2779 collect_data_init (&data);
2781 collect_ginst_images (ginst, &data);
2783 set = get_image_set (data.images, data.nimages);
2785 collect_data_free (&data);
2787 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2789 ginst = g_malloc (size);
2790 ginst->id = ++next_generic_inst_id;
2791 ginst->is_open = is_open;
2792 ginst->type_argc = type_argc;
2794 for (i = 0; i < type_argc; ++i)
2795 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2797 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2800 mono_loader_unlock ();
2805 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2807 MonoGenericContainer *container = container_class->generic_container;
2809 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2811 return inst == container->context.class_inst;
2815 * mono_metadata_lookup_generic_class:
2817 * Returns a MonoGenericClass with the given properties.
2821 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2823 MonoGenericClass *gclass;
2824 MonoGenericClass helper;
2825 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2829 helper.container_class = container_class;
2830 helper.context.class_inst = inst;
2831 helper.context.method_inst = NULL;
2832 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2833 helper.is_tb_open = is_tb_open;
2834 helper.cached_class = NULL;
2836 mono_loader_lock ();
2838 collect_data_init (&data);
2840 collect_gclass_images (&helper, &data);
2842 set = get_image_set (data.images, data.nimages);
2844 collect_data_free (&data);
2846 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
2848 /* A tripwire just to keep us honest */
2849 g_assert (!helper.cached_class);
2852 mono_loader_unlock ();
2857 MonoDynamicGenericClass *dgclass = g_new0 (MonoDynamicGenericClass, 1);
2858 gclass = &dgclass->generic_class;
2859 gclass->is_dynamic = 1;
2861 gclass = g_new0 (MonoGenericClass, 1);
2864 gclass->is_tb_open = is_tb_open;
2865 gclass->container_class = container_class;
2866 gclass->context.class_inst = inst;
2867 gclass->context.method_inst = NULL;
2868 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2869 gclass->cached_class = container_class;
2871 g_hash_table_insert (set->gclass_cache, gclass, gclass);
2873 mono_loader_unlock ();
2879 * mono_metadata_inflate_generic_inst:
2881 * Instantiate the generic instance @ginst with the context @context.
2882 * Check @error for success.
2886 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
2888 MonoType **type_argv;
2889 MonoGenericInst *nginst = NULL;
2892 mono_error_init (error);
2894 if (!ginst->is_open)
2897 type_argv = g_new0 (MonoType*, ginst->type_argc);
2899 for (i = 0; i < ginst->type_argc; i++) {
2900 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
2901 if (!mono_error_ok (error))
2906 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2909 for (i = 0; i < count; i++)
2910 mono_metadata_free_type (type_argv [i]);
2917 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2918 int count, const char *ptr, const char **rptr)
2920 MonoType **type_argv;
2921 MonoGenericInst *ginst;
2924 type_argv = g_new0 (MonoType*, count);
2926 for (i = 0; i < count; i++) {
2927 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2938 ginst = mono_metadata_get_generic_inst (count, type_argv);
2946 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2947 const char *ptr, const char **rptr)
2949 MonoGenericInst *inst;
2954 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
2958 gklass = mono_class_from_mono_type (gtype);
2959 if (!gklass->generic_container)
2962 count = mono_metadata_decode_value (ptr, &ptr);
2963 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
2970 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
2976 * @gc: The generic container to normalize
2977 * @type: The kind of generic parameters the resulting generic-container should contain
2980 static MonoGenericContainer *
2981 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
2983 gboolean is_var = (type == MONO_TYPE_VAR);
2987 g_assert (is_var || type == MONO_TYPE_MVAR);
2990 if (gc->is_method || gc->parent)
2992 * The current MonoGenericContainer is a generic method -> its `parent'
2993 * points to the containing class'es container.
3002 * mono_metadata_parse_generic_param:
3003 * @generic_container: Our MonoClass's or MonoMethodNormal's MonoGenericContainer;
3004 * see mono_metadata_parse_type_full() for details.
3005 * Internal routine to parse a generic type parameter.
3006 * LOCKING: Acquires the loader lock
3008 static MonoGenericParam *
3009 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3010 MonoTypeEnum type, const char *ptr, const char **rptr)
3012 int index = mono_metadata_decode_value (ptr, &ptr);
3016 generic_container = select_container (generic_container, type);
3017 if (!generic_container) {
3018 /* Create dummy MonoGenericParam */
3019 MonoGenericParam *param;
3021 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3028 if (index >= generic_container->type_argc)
3031 return mono_generic_container_get_param (generic_container, index);
3035 * mono_metadata_get_shared_type:
3037 * Return a shared instance of TYPE, if available, NULL otherwise.
3038 * Shared MonoType instances help save memory. Their contents should not be modified
3039 * by the caller. They do not need to be freed as their lifetime is bound by either
3040 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3041 * instance they are embedded in. If they are freed, they should be freed using
3042 * mono_metadata_free_type () instead of g_free ().
3045 mono_metadata_get_shared_type (MonoType *type)
3049 /* No need to use locking since nobody is modifying the hash table */
3050 if ((cached = g_hash_table_lookup (type_cache, type)))
3053 switch (type->type){
3054 case MONO_TYPE_CLASS:
3055 case MONO_TYPE_VALUETYPE:
3056 if (type == &type->data.klass->byval_arg)
3058 if (type == &type->data.klass->this_arg)
3067 * do_mono_metadata_parse_type:
3068 * @type: MonoType to be filled in with the return value
3070 * @generic_context: generics_context
3071 * @ptr: pointer to the encoded type
3072 * @rptr: pointer where the end of the encoded type is saved
3074 * Internal routine used to "fill" the contents of @type from an
3075 * allocated pointer. This is done this way to avoid doing too
3076 * many mini-allocations (particularly for the MonoFieldType which
3077 * most of the time is just a MonoType, but sometimes might be augmented).
3079 * This routine is used by mono_metadata_parse_type and
3080 * mono_metadata_parse_field_type
3082 * This extracts a Type as specified in Partition II (22.2.12)
3084 * Returns: FALSE if the type could not be loaded
3087 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3088 const char *ptr, const char **rptr)
3091 type->type = mono_metadata_decode_value (ptr, &ptr);
3093 switch (type->type){
3094 case MONO_TYPE_VOID:
3095 case MONO_TYPE_BOOLEAN:
3096 case MONO_TYPE_CHAR:
3109 case MONO_TYPE_STRING:
3110 case MONO_TYPE_OBJECT:
3111 case MONO_TYPE_TYPEDBYREF:
3113 case MONO_TYPE_VALUETYPE:
3114 case MONO_TYPE_CLASS: {
3116 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3117 type->data.klass = mono_class_get (m, token);
3118 if (!type->data.klass)
3122 case MONO_TYPE_SZARRAY: {
3123 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
3126 type->data.klass = mono_class_from_mono_type (etype);
3127 if (!type->data.klass)
3132 type->data.type = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
3133 if (!type->data.type)
3136 case MONO_TYPE_FNPTR:
3137 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
3138 if (!type->data.method)
3141 case MONO_TYPE_ARRAY:
3142 type->data.array = mono_metadata_parse_array_full (m, container, ptr, &ptr);
3143 if (!type->data.array)
3146 case MONO_TYPE_MVAR:
3147 if (container && !container->is_method)
3150 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
3151 if (!type->data.generic_param)
3154 case MONO_TYPE_GENERICINST:
3155 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
3158 g_warning ("type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3168 * mono_metadata_free_type:
3169 * @type: type to free
3171 * Free the memory allocated for type @type which is allocated on the heap.
3174 mono_metadata_free_type (MonoType *type)
3176 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3179 switch (type->type){
3180 case MONO_TYPE_OBJECT:
3181 case MONO_TYPE_STRING:
3182 if (!type->data.klass)
3185 case MONO_TYPE_CLASS:
3186 case MONO_TYPE_VALUETYPE:
3187 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3191 mono_metadata_free_type (type->data.type);
3193 case MONO_TYPE_FNPTR:
3194 mono_metadata_free_method_signature (type->data.method);
3196 case MONO_TYPE_ARRAY:
3197 mono_metadata_free_array (type->data.array);
3206 hex_dump (const char *buffer, int base, int count)
3208 int show_header = 1;
3216 for (i = 0; i < count; i++){
3219 printf ("\n0x%08x: ", (unsigned char) base + i);
3221 printf ("%02x ", (unsigned char) (buffer [i]));
3228 * @mh: The Method header
3229 * @ptr: Points to the beginning of the Section Data (25.3)
3232 parse_section_data (MonoImage *m, MonoMethodHeader *mh, const unsigned char *ptr)
3234 unsigned char sect_data_flags;
3235 const unsigned char *sptr;
3237 guint32 sect_data_len;
3240 /* align on 32-bit boundary */
3241 sptr = ptr = dword_align (ptr);
3242 sect_data_flags = *ptr;
3245 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3247 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3250 sect_data_len = ptr [0];
3254 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
3255 hex_dump (sptr, 0, sect_data_len+8);
3256 g_print ("\nheader: ");
3257 hex_dump (sptr-4, 0, 4);
3261 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3262 const unsigned char *p = dword_align (ptr);
3264 mh->num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3265 /* we could just store a pointer if we don't need to byteswap */
3266 mh->clauses = mono_image_alloc0 (m, sizeof (MonoExceptionClause) * mh->num_clauses);
3267 for (i = 0; i < mh->num_clauses; ++i) {
3268 MonoExceptionClause *ec = &mh->clauses [i];
3271 ec->flags = read32 (p);
3272 ec->try_offset = read32 (p + 4);
3273 ec->try_len = read32 (p + 8);
3274 ec->handler_offset = read32 (p + 12);
3275 ec->handler_len = read32 (p + 16);
3276 tof_value = read32 (p + 20);
3279 ec->flags = read16 (p);
3280 ec->try_offset = read16 (p + 2);
3281 ec->try_len = *(p + 4);
3282 ec->handler_offset = read16 (p + 5);
3283 ec->handler_len = *(p + 7);
3284 tof_value = read32 (p + 8);
3287 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3288 ec->data.filter_offset = tof_value;
3289 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3290 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
3292 ec->data.catch_class = NULL;
3294 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3298 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3299 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3306 * mono_metadata_parse_mh_full:
3307 * @m: metadata context
3308 * @generic_context: generics context
3309 * @ptr: pointer to the method header.
3311 * Decode the method header at @ptr, including pointer to the IL code,
3312 * info about local variables and optional exception tables.
3313 * This is a Mono runtime internal function.
3315 * LOCKING: Acquires the loader lock.
3317 * Returns: a MonoMethodHeader allocated from the image mempool.
3320 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3322 MonoMethodHeader *mh;
3323 unsigned char flags = *(const unsigned char *) ptr;
3324 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3326 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3327 const unsigned char *code;
3330 g_return_val_if_fail (ptr != NULL, NULL);
3333 case METHOD_HEADER_TINY_FORMAT:
3334 mh = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_HEADER);
3337 local_var_sig_tok = 0;
3338 mh->code_size = flags >> 2;
3339 mh->code = (unsigned char*)ptr;
3341 case METHOD_HEADER_FAT_FORMAT:
3342 fat_flags = read16 (ptr);
3344 hsize = (fat_flags >> 12) & 0xf;
3345 max_stack = read16 (ptr);
3347 code_size = read32 (ptr);
3349 local_var_sig_tok = read32 (ptr);
3352 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3357 code = (unsigned char*)ptr;
3359 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3363 * There are more sections
3365 ptr = (char*)code + code_size;
3371 if (local_var_sig_tok) {
3372 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3373 const char *locals_ptr;
3374 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3375 int len=0, i, bsize;
3377 mono_metadata_decode_row (t, (local_var_sig_tok & 0xffffff)-1, cols, 1);
3379 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3382 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3383 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3384 if (*locals_ptr != 0x07)
3385 g_warning ("wrong signature for locals blob");
3387 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3388 mh = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*));
3389 mh->num_locals = len;
3390 for (i = 0; i < len; ++i) {
3391 mh->locals [i] = mono_metadata_parse_type_full (
3392 m, container, MONO_PARSE_LOCAL, 0, locals_ptr, &locals_ptr);
3393 if (!mh->locals [i]) {
3398 mh = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_HEADER);
3401 mh->code_size = code_size;
3402 mh->max_stack = max_stack;
3403 mh->init_locals = init_locals;
3404 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3405 parse_section_data (m, mh, (const unsigned char*)ptr);
3410 * mono_metadata_parse_mh:
3411 * @generic_context: generics context
3412 * @ptr: pointer to the method header.
3414 * Decode the method header at @ptr, including pointer to the IL code,
3415 * info about local variables and optional exception tables.
3416 * This is a Mono runtime internal function.
3418 * Returns: a MonoMethodHeader.
3421 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3423 MonoMethodHeader *res;
3425 mono_loader_lock ();
3427 res = mono_metadata_parse_mh_full (m, NULL, ptr);
3429 mono_loader_unlock ();
3435 * mono_metadata_free_mh:
3436 * @mh: a method header
3438 * Free the memory allocated for the method header.
3439 * This is a Mono runtime internal function.
3442 mono_metadata_free_mh (MonoMethodHeader *mh)
3444 /* Allocated from the mempool */
3448 * mono_method_header_get_code:
3449 * @header: a MonoMethodHeader pointer
3450 * @code_size: memory location for returning the code size
3451 * @max_stack: memory location for returning the max stack
3453 * Method header accessor to retreive info about the IL code properties:
3454 * a pointer to the IL code itself, the size of the code and the max number
3455 * of stack slots used by the code.
3457 * Returns: pointer to the IL code represented by the method header.
3459 const unsigned char*
3460 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3463 *code_size = header->code_size;
3465 *max_stack = header->max_stack;
3466 return header->code;
3470 * mono_method_header_get_locals:
3471 * @header: a MonoMethodHeader pointer
3472 * @num_locals: memory location for returning the number of local variables
3473 * @init_locals: memory location for returning the init_locals flag
3475 * Method header accessor to retreive info about the local variables:
3476 * an array of local types, the number of locals and whether the locals
3477 * are supposed to be initialized to 0 on method entry
3479 * Returns: pointer to an array of types of the local variables
3482 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3485 *num_locals = header->num_locals;
3487 *init_locals = header->init_locals;
3488 return header->locals;
3492 * mono_method_header_get_num_clauses:
3493 * @header: a MonoMethodHeader pointer
3495 * Method header accessor to retreive the number of exception clauses.
3497 * Returns: the number of exception clauses present
3500 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3502 return header->num_clauses;
3506 * mono_method_header_get_clauses:
3507 * @header: a MonoMethodHeader pointer
3508 * @method: MonoMethod the header belongs to
3509 * @iter: pointer to a iterator
3510 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3512 * Get the info about the exception clauses in the method. Set *iter to NULL to
3513 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3514 * At each iteration, the structure pointed to by clause if filled with the
3515 * exception clause information.
3517 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3521 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3523 MonoExceptionClause *sc;
3524 /* later we'll be able to use this interface to parse the clause info on demand,
3525 * without allocating anything.
3527 if (!iter || !header->num_clauses)
3530 *iter = sc = header->clauses;
3536 if (sc < header->clauses + header->num_clauses) {
3545 * mono_metadata_parse_field_type:
3546 * @m: metadata context to extract information from
3547 * @ptr: pointer to the field signature
3548 * @rptr: pointer updated to match the end of the decoded stream
3550 * Parses the field signature, and returns the type information for it.
3552 * Returns: The MonoType that was extracted from @ptr.
3555 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3557 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3561 * mono_metadata_parse_param:
3562 * @m: metadata context to extract information from
3563 * @ptr: pointer to the param signature
3564 * @rptr: pointer updated to match the end of the decoded stream
3566 * Parses the param signature, and returns the type information for it.
3568 * Returns: The MonoType that was extracted from @ptr.
3571 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3573 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3577 * mono_metadata_token_from_dor:
3578 * @dor_token: A TypeDefOrRef coded index
3580 * dor_token is a TypeDefOrRef coded index: it contains either
3581 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3582 * bits contain an index into the table.
3584 * Returns: an expanded token
3587 mono_metadata_token_from_dor (guint32 dor_index)
3591 table = dor_index & 0x03;
3592 idx = dor_index >> 2;
3595 case 0: /* TypeDef */
3596 return MONO_TOKEN_TYPE_DEF | idx;
3597 case 1: /* TypeRef */
3598 return MONO_TOKEN_TYPE_REF | idx;
3599 case 2: /* TypeSpec */
3600 return MONO_TOKEN_TYPE_SPEC | idx;
3602 g_assert_not_reached ();
3609 * We use this to pass context information to the row locator
3612 int idx; /* The index that we are trying to locate */
3613 int col_idx; /* The index in the row where idx may be stored */
3614 MonoTableInfo *t; /* pointer to the table */
3619 * How the row locator works.
3624 * ___|___------> _______
3627 * A column in the rows of table A references an index in table B.
3628 * For example A may be the TYPEDEF table and B the METHODDEF table.
3630 * Given an index in table B we want to get the row in table A
3631 * where the column n references our index in B.
3633 * In the locator_t structure:
3635 * col_idx is the column number
3636 * index is the index in table B
3637 * result will be the index in table A
3640 * Table A Table B column (in table A)
3641 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3642 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3643 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3644 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3645 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3647 * Note that we still don't support encoded indexes.
3651 typedef_locator (const void *a, const void *b)
3653 locator_t *loc = (locator_t *) a;
3654 const char *bb = (const char *) b;
3655 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3656 guint32 col, col_next;
3658 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3664 * Need to check that the next row is valid.
3666 if (typedef_index + 1 < loc->t->rows) {
3667 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3668 if (loc->idx >= col_next)
3671 if (col == col_next)
3675 loc->result = typedef_index;
3681 table_locator (const void *a, const void *b)
3683 locator_t *loc = (locator_t *) a;
3684 const char *bb = (const char *) b;
3685 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3688 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3690 if (loc->idx == col) {
3691 loc->result = table_index;
3701 declsec_locator (const void *a, const void *b)
3703 locator_t *loc = (locator_t *) a;
3704 const char *bb = (const char *) b;
3705 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3708 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3710 if (loc->idx == col) {
3711 loc->result = table_index;
3723 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3724 * which contains IDX.
3727 search_ptr_table (MonoImage *image, int table, int idx)
3729 MonoTableInfo *ptrdef = &image->tables [table];
3732 /* Use a linear search to find our index in the table */
3733 for (i = 0; i < ptrdef->rows; i ++)
3734 /* All the Ptr tables have the same structure */
3735 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3738 if (i < ptrdef->rows)
3745 * mono_metadata_typedef_from_field:
3746 * @meta: metadata context
3747 * @index: FieldDef token
3749 * Returns: the 1-based index into the TypeDef table of the type that
3750 * declared the field described by @index, or 0 if not found.
3753 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3755 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3761 loc.idx = mono_metadata_token_index (index);
3762 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3765 if (meta->uncompressed_metadata)
3766 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3768 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3771 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3772 return loc.result + 1;
3776 * mono_metadata_typedef_from_method:
3777 * @meta: metadata context
3778 * @index: MethodDef token
3780 * Returns: the 1-based index into the TypeDef table of the type that
3781 * declared the method described by @index. 0 if not found.
3784 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3786 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3792 loc.idx = mono_metadata_token_index (index);
3793 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3796 if (meta->uncompressed_metadata)
3797 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3799 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3802 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3803 return loc.result + 1;
3807 * mono_metadata_interfaces_from_typedef_full:
3808 * @meta: metadata context
3809 * @index: typedef token
3810 * @interfaces: Out parameter used to store the interface array
3811 * @count: Out parameter used to store the number of interfaces
3812 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
3813 * @context: The generic context
3815 * The array of interfaces that the @index typedef token implements is returned in
3816 * @interfaces. The number of elements in the array is returned in @count.
3818 * LOCKING: Assumes the loader lock is held.
3820 * Returns: TRUE on success, FALSE on failure.
3823 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context)
3825 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3828 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3837 loc.idx = mono_metadata_token_index (index);
3838 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3841 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3846 * We may end up in the middle of the rows...
3849 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
3855 while (pos < tdef->rows) {
3856 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3857 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3862 if (heap_alloc_result)
3863 result = g_new0 (MonoClass*, pos - start);
3865 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
3868 while (pos < tdef->rows) {
3871 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3872 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3874 iface = mono_class_get_full (
3875 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
3878 result [pos - start] = iface;
3881 *count = pos - start;
3882 *interfaces = result;
3887 * @meta: metadata context
3888 * @index: typedef token
3889 * @count: Out parameter used to store the number of interfaces
3891 * The array of interfaces that the @index typedef token implements is returned in
3892 * @interfaces. The number of elements in the array is returned in @count. The returned
3893 * array is g_malloc'd and the caller must free it.
3895 * LOCKING: Acquires the loader lock .
3897 * Returns: the interface array on success, NULL on failure.
3901 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
3903 MonoClass **interfaces;
3906 mono_loader_lock ();
3907 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL);
3908 mono_loader_unlock ();
3916 * mono_metadata_nested_in_typedef:
3917 * @meta: metadata context
3918 * @index: typedef token
3920 * Returns: the 1-based index into the TypeDef table of the type
3921 * where the type described by @index is nested.
3922 * Retruns 0 if @index describes a non-nested type.
3925 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
3927 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3933 loc.idx = mono_metadata_token_index (index);
3934 loc.col_idx = MONO_NESTED_CLASS_NESTED;
3937 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3940 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3941 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
3945 * mono_metadata_nesting_typedef:
3946 * @meta: metadata context
3947 * @index: typedef token
3949 * Returns: the 1-based index into the TypeDef table of the first type
3950 * that is nested inside the type described by @index. The search starts at
3951 * @start_index. returns 0 if no such type is found.
3954 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
3956 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
3958 guint32 class_index = mono_metadata_token_index (index);
3963 start = start_index;
3965 while (start <= tdef->rows) {
3966 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
3972 if (start > tdef->rows)
3979 * mono_metadata_packing_from_typedef:
3980 * @meta: metadata context
3981 * @index: token representing a type
3983 * Returns: the info stored in the ClassLAyout table for the given typedef token
3984 * into the @packing and @size pointers.
3985 * Returns 0 if the info is not found.
3988 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
3990 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
3992 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
3997 loc.idx = mono_metadata_token_index (index);
3998 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4001 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4004 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4006 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4008 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4010 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4011 return loc.result + 1;
4015 * mono_metadata_custom_attrs_from_index:
4016 * @meta: metadata context
4017 * @index: token representing the parent
4019 * Returns: the 1-based index into the CustomAttribute table of the first
4020 * attribute which belongs to the metadata object described by @index.
4021 * Returns 0 if no such attribute is found.
4024 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4026 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4033 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4036 /* FIXME: Index translation */
4038 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4041 /* Find the first entry by searching backwards */
4042 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4045 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4046 return loc.result + 1;
4050 * mono_metadata_declsec_from_index:
4051 * @meta: metadata context
4052 * @index: token representing the parent
4054 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4055 * attribute which belongs to the metadata object described by @index.
4056 * Returns -1 if no such attribute is found.
4059 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4061 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4068 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4071 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4074 /* Find the first entry by searching backwards */
4075 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4083 mono_backtrace (int limit)
4088 backtrace (array, limit);
4089 names = backtrace_symbols (array, limit);
4090 for (i =0; i < limit; ++i) {
4091 g_print ("\t%s\n", names [i]);
4098 /*#define __alignof__(a) sizeof(a)*/
4099 #define __alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
4104 * @t: the type to return the size of
4106 * Returns: the number of bytes required to hold an instance of this
4110 mono_type_size (MonoType *t, int *align)
4117 *align = __alignof__(gpointer);
4118 return sizeof (gpointer);
4122 case MONO_TYPE_VOID:
4125 case MONO_TYPE_BOOLEAN:
4126 *align = __alignof__(gint8);
4130 *align = __alignof__(gint8);
4132 case MONO_TYPE_CHAR:
4135 *align = __alignof__(gint16);
4139 *align = __alignof__(gint32);
4142 *align = __alignof__(float);
4146 *align = __alignof__(gint64);
4149 *align = __alignof__(double);
4153 *align = __alignof__(gpointer);
4154 return sizeof (gpointer);
4155 case MONO_TYPE_STRING:
4156 *align = __alignof__(gpointer);
4157 return sizeof (gpointer);
4158 case MONO_TYPE_OBJECT:
4159 *align = __alignof__(gpointer);
4160 return sizeof (gpointer);
4161 case MONO_TYPE_VALUETYPE: {
4162 if (t->data.klass->enumtype)
4163 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4165 return mono_class_value_size (t->data.klass, (guint32*)align);
4167 case MONO_TYPE_CLASS:
4168 case MONO_TYPE_SZARRAY:
4170 case MONO_TYPE_FNPTR:
4171 case MONO_TYPE_ARRAY:
4172 *align = __alignof__(gpointer);
4173 return sizeof (gpointer);
4174 case MONO_TYPE_TYPEDBYREF:
4175 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4176 case MONO_TYPE_GENERICINST: {
4177 MonoGenericClass *gclass = t->data.generic_class;
4178 MonoClass *container_class = gclass->container_class;
4180 // g_assert (!gclass->inst->is_open);
4182 if (container_class->valuetype) {
4183 if (container_class->enumtype)
4184 return mono_type_size (mono_class_enum_basetype (container_class), align);
4186 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4188 *align = __alignof__(gpointer);
4189 return sizeof (gpointer);
4193 case MONO_TYPE_MVAR:
4194 /* FIXME: Martin, this is wrong. */
4195 *align = __alignof__(gpointer);
4196 return sizeof (gpointer);
4198 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4204 * mono_type_stack_size:
4205 * @t: the type to return the size it uses on the stack
4207 * Returns: the number of bytes required to hold an instance of this
4208 * type on the runtime stack
4211 mono_type_stack_size (MonoType *t, int *align)
4213 return mono_type_stack_size_internal (t, align, FALSE);
4217 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4220 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4221 int stack_slot_size = sizeof (gpointer);
4222 int stack_slot_align = __alignof__ (gpointer);
4223 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4224 int stack_slot_size = SIZEOF_REGISTER;
4225 int stack_slot_align = SIZEOF_REGISTER;
4228 g_assert (t != NULL);
4234 *align = stack_slot_align;
4235 return stack_slot_size;
4239 case MONO_TYPE_BOOLEAN:
4240 case MONO_TYPE_CHAR:
4249 case MONO_TYPE_STRING:
4250 case MONO_TYPE_OBJECT:
4251 case MONO_TYPE_CLASS:
4252 case MONO_TYPE_SZARRAY:
4254 case MONO_TYPE_FNPTR:
4255 case MONO_TYPE_ARRAY:
4256 *align = stack_slot_align;
4257 return stack_slot_size;
4259 case MONO_TYPE_MVAR:
4260 g_assert (allow_open);
4261 *align = stack_slot_align;
4262 return stack_slot_size;
4263 case MONO_TYPE_TYPEDBYREF:
4264 *align = stack_slot_align;
4265 return stack_slot_size * 3;
4267 *align = __alignof__(float);
4268 return sizeof (float);
4271 *align = __alignof__(gint64);
4272 return sizeof (gint64);
4274 *align = __alignof__(double);
4275 return sizeof (double);
4276 case MONO_TYPE_VALUETYPE: {
4279 if (t->data.klass->enumtype)
4280 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4282 size = mono_class_value_size (t->data.klass, (guint32*)align);
4284 *align = *align + stack_slot_align - 1;
4285 *align &= ~(stack_slot_align - 1);
4287 size += stack_slot_size - 1;
4288 size &= ~(stack_slot_size - 1);
4293 case MONO_TYPE_GENERICINST: {
4294 MonoGenericClass *gclass = t->data.generic_class;
4295 MonoClass *container_class = gclass->container_class;
4298 g_assert (!gclass->context.class_inst->is_open);
4300 if (container_class->valuetype) {
4301 if (container_class->enumtype)
4302 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4304 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4306 *align = *align + stack_slot_align - 1;
4307 *align &= ~(stack_slot_align - 1);
4309 size += stack_slot_size - 1;
4310 size &= ~(stack_slot_size - 1);
4315 *align = stack_slot_align;
4316 return stack_slot_size;
4320 g_error ("type 0x%02x unknown", t->type);
4326 mono_type_generic_inst_is_valuetype (MonoType *type)
4328 g_assert (type->type == MONO_TYPE_GENERICINST);
4329 return type->data.generic_class->container_class->valuetype;
4333 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4335 return gclass->container_class->valuetype;
4339 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4341 MonoGenericInst *i1 = g1->context.class_inst;
4342 MonoGenericInst *i2 = g2->context.class_inst;
4344 if (g1->is_dynamic != g2->is_dynamic)
4346 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4348 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4350 return g1->is_tb_open == g2->is_tb_open;
4354 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4356 MonoGenericInst *i1 = g1->context.class_inst;
4357 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4359 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4361 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4363 return !g1->is_tb_open;
4367 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4369 /* FIXME: check if this seed is good enough */
4370 guint hash = 0xc01dfee7;
4371 if (context->class_inst)
4372 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4373 if (context->method_inst)
4374 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4379 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4381 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4385 * mono_metadata_type_hash:
4388 * Computes an hash value for @t1 to be used in GHashTable.
4391 mono_metadata_type_hash (MonoType *t1)
4393 guint hash = t1->type;
4395 hash |= t1->byref << 6; /* do not collide with t1->type values */
4397 case MONO_TYPE_VALUETYPE:
4398 case MONO_TYPE_CLASS:
4399 case MONO_TYPE_SZARRAY:
4400 /* check if the distribution is good enough */
4401 return ((hash << 5) - hash) ^ g_str_hash (t1->data.klass->name);
4403 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4404 case MONO_TYPE_ARRAY:
4405 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4406 case MONO_TYPE_GENERICINST:
4407 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4413 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4417 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4421 * We have to compare the image as well because if we didn't,
4422 * the generic_inst_cache lookup wouldn't care about the image
4423 * of generic params, so what could happen is that a generic
4424 * inst with params from image A is put into the cache, then
4425 * image B gets that generic inst from the cache, image A is
4426 * unloaded, so the inst is deleted, but image B still retains
4429 * The AOT runtime doesn't set the image when it's decoding
4430 * types, so we only compare it when the owner is NULL.
4432 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4433 (mono_generic_param_owner (p1) || p1->image == p2->image))
4437 * If `signature_only' is true, we're comparing two (method) signatures.
4438 * In this case, the owner of two type parameters doesn't need to match.
4441 return signature_only;
4445 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4449 if (c1->generic_class && c2->generic_class)
4450 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4451 if (c1->generic_class && c2->generic_container)
4452 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4453 if (c1->generic_container && c2->generic_class)
4454 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4455 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4456 return mono_metadata_generic_param_equal (
4457 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4458 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4459 return mono_metadata_generic_param_equal (
4460 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4461 if (signature_only &&
4462 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4463 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4468 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4470 gpointer iter1 = 0, iter2 = 0;
4474 if (s1->call_convention != s2->call_convention)
4476 if (s1->sentinelpos != s2->sentinelpos)
4478 if (s1->hasthis != s2->hasthis)
4480 if (s1->explicit_this != s2->explicit_this)
4482 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4484 if (s1->param_count != s2->param_count)
4488 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4489 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4491 if (t1 == NULL || t2 == NULL)
4493 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4499 * mono_metadata_type_equal:
4503 * Determine if @t1 and @t2 represent the same type.
4504 * Returns: #TRUE if @t1 and @t2 are equal.
4507 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4509 if (t1->type != t2->type || t1->byref != t2->byref)
4513 case MONO_TYPE_VOID:
4514 case MONO_TYPE_BOOLEAN:
4515 case MONO_TYPE_CHAR:
4526 case MONO_TYPE_STRING:
4529 case MONO_TYPE_OBJECT:
4530 case MONO_TYPE_TYPEDBYREF:
4532 case MONO_TYPE_VALUETYPE:
4533 case MONO_TYPE_CLASS:
4534 case MONO_TYPE_SZARRAY:
4535 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4537 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4538 case MONO_TYPE_ARRAY:
4539 if (t1->data.array->rank != t2->data.array->rank)
4541 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4542 case MONO_TYPE_GENERICINST:
4543 return _mono_metadata_generic_class_equal (
4544 t1->data.generic_class, t2->data.generic_class, signature_only);
4546 return mono_metadata_generic_param_equal (
4547 t1->data.generic_param, t2->data.generic_param, signature_only);
4548 case MONO_TYPE_MVAR:
4549 return mono_metadata_generic_param_equal (
4550 t1->data.generic_param, t2->data.generic_param, signature_only);
4551 case MONO_TYPE_FNPTR:
4552 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4554 g_error ("implement type compare for %0x!", t1->type);
4562 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
4564 return do_mono_metadata_type_equal (t1, t2, FALSE);
4568 * mono_metadata_type_equal_full:
4571 * @signature_only: if signature only comparison should be made
4573 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
4574 * behaves the same way as mono_metadata_type_equal.
4575 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
4576 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
4579 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
4581 return do_mono_metadata_type_equal (t1, t2, signature_only);
4585 * mono_metadata_signature_equal:
4586 * @sig1: a signature
4587 * @sig2: another signature
4589 * Determine if @sig1 and @sig2 represent the same signature, with the
4590 * same number of arguments and the same types.
4591 * Returns: #TRUE if @sig1 and @sig2 are equal.
4594 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4598 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4601 if (sig1->generic_param_count != sig2->generic_param_count)
4605 * We're just comparing the signatures of two methods here:
4607 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4608 * U and V are equal here.
4610 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4613 for (i = 0; i < sig1->param_count; i++) {
4614 MonoType *p1 = sig1->params[i];
4615 MonoType *p2 = sig2->params[i];
4617 /* if (p1->attrs != p2->attrs)
4620 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
4624 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4630 * mono_metadata_type_dup:
4631 * @image: image to alloc memory from
4632 * @original: type to duplicate
4634 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
4637 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
4640 int sizeof_o = MONO_SIZEOF_TYPE;
4642 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
4644 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
4646 memcpy (r, o, sizeof_o);
4648 if (o->type == MONO_TYPE_PTR) {
4649 r->data.type = mono_metadata_type_dup (image, o->data.type);
4650 } else if (o->type == MONO_TYPE_ARRAY) {
4651 r->data.array = mono_dup_array_type (image, o->data.array);
4652 } else if (o->type == MONO_TYPE_FNPTR) {
4653 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
4654 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
4660 mono_signature_hash (MonoMethodSignature *sig)
4662 guint i, res = sig->ret->type;
4664 for (i = 0; i < sig->param_count; i++)
4665 res = (res << 5) - res + mono_type_hash (sig->params[i]);
4671 * mono_metadata_encode_value:
4672 * @value: value to encode
4673 * @buf: buffer where to write the compressed representation
4674 * @endbuf: pointer updated to point at the end of the encoded output
4676 * Encodes the value @value in the compressed representation used
4677 * in metadata and stores the result in @buf. @buf needs to be big
4678 * enough to hold the data (4 bytes).
4681 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
4687 else if (value < 0x4000) {
4688 p [0] = 0x80 | (value >> 8);
4689 p [1] = value & 0xff;
4692 p [0] = (value >> 24) | 0xc0;
4693 p [1] = (value >> 16) & 0xff;
4694 p [2] = (value >> 8) & 0xff;
4695 p [3] = value & 0xff;
4703 * mono_metadata_field_info:
4704 * @meta: the Image the field is defined in
4705 * @index: the index in the field table representing the field
4706 * @offset: a pointer to an integer where to store the offset that
4707 * may have been specified for the field in a FieldLayout table
4708 * @rva: a pointer to the RVA of the field data in the image that
4709 * may have been defined in a FieldRVA table
4710 * @marshal_spec: a pointer to the marshal spec that may have been
4711 * defined for the field in a FieldMarshal table.
4713 * Gather info for field @index that may have been defined in the FieldLayout,
4714 * FieldRVA and FieldMarshal tables.
4715 * Either of offset, rva and marshal_spec can be NULL if you're not interested
4719 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4720 MonoMarshalSpec **marshal_spec)
4722 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
4726 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4727 MonoMarshalSpec **marshal_spec)
4729 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
4733 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4734 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
4736 MonoTableInfo *tdef;
4739 loc.idx = index + 1;
4740 if (meta->uncompressed_metadata)
4741 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4744 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
4746 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
4749 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4750 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
4752 *offset = (guint32)-1;
4756 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
4758 loc.col_idx = MONO_FIELD_RVA_FIELD;
4761 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4763 * LAMESPEC: There is no signature, no nothing, just the raw data.
4765 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
4773 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
4774 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, p);
4781 * mono_metadata_get_constant_index:
4782 * @meta: the Image the field is defined in
4783 * @index: the token that may have a row defined in the constants table
4784 * @hint: possible position for the row
4786 * @token must be a FieldDef, ParamDef or PropertyDef token.
4788 * Returns: the index into the Constants table or 0 if not found.
4791 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4793 MonoTableInfo *tdef;
4795 guint32 index = mono_metadata_token_index (token);
4797 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4798 index <<= MONO_HASCONSTANT_BITS;
4799 switch (mono_metadata_token_table (token)) {
4800 case MONO_TABLE_FIELD:
4801 index |= MONO_HASCONSTANT_FIEDDEF;
4803 case MONO_TABLE_PARAM:
4804 index |= MONO_HASCONSTANT_PARAM;
4806 case MONO_TABLE_PROPERTY:
4807 index |= MONO_HASCONSTANT_PROPERTY;
4810 g_warning ("Not a valid token for the constant table: 0x%08x", token);
4814 loc.col_idx = MONO_CONSTANT_PARENT;
4817 /* FIXME: Index translation */
4819 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
4822 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4823 return loc.result + 1;
4829 * mono_metadata_events_from_typedef:
4830 * @meta: metadata context
4831 * @index: 0-based index (in the TypeDef table) describing a type
4833 * Returns: the 0-based index in the Event table for the events in the
4834 * type. The last event that belongs to the type (plus 1) is stored
4835 * in the @end_idx pointer.
4838 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4842 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
4850 loc.col_idx = MONO_EVENT_MAP_PARENT;
4851 loc.idx = index + 1;
4853 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4856 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
4857 if (loc.result + 1 < tdef->rows) {
4858 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
4860 end = meta->tables [MONO_TABLE_EVENT].rows;
4868 * mono_metadata_methods_from_event:
4869 * @meta: metadata context
4870 * @index: 0-based index (in the Event table) describing a event
4872 * Returns: the 0-based index in the MethodDef table for the methods in the
4873 * event. The last method that belongs to the event (plus 1) is stored
4874 * in the @end_idx pointer.
4877 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
4881 guint32 cols [MONO_METHOD_SEMA_SIZE];
4882 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4888 if (meta->uncompressed_metadata)
4889 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
4892 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4893 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
4895 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4900 * We may end up in the middle of the rows...
4903 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
4909 while (end < msemt->rows) {
4910 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
4911 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
4920 * mono_metadata_properties_from_typedef:
4921 * @meta: metadata context
4922 * @index: 0-based index (in the TypeDef table) describing a type
4924 * Returns: the 0-based index in the Property table for the properties in the
4925 * type. The last property that belongs to the type (plus 1) is stored
4926 * in the @end_idx pointer.
4929 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
4933 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
4941 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
4942 loc.idx = index + 1;
4944 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4947 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
4948 if (loc.result + 1 < tdef->rows) {
4949 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
4951 end = meta->tables [MONO_TABLE_PROPERTY].rows;
4959 * mono_metadata_methods_from_property:
4960 * @meta: metadata context
4961 * @index: 0-based index (in the PropertyDef table) describing a property
4963 * Returns: the 0-based index in the MethodDef table for the methods in the
4964 * property. The last method that belongs to the property (plus 1) is stored
4965 * in the @end_idx pointer.
4968 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
4972 guint32 cols [MONO_METHOD_SEMA_SIZE];
4973 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
4979 if (meta->uncompressed_metadata)
4980 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
4983 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
4984 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
4986 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
4991 * We may end up in the middle of the rows...
4994 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5000 while (end < msemt->rows) {
5001 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5002 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5011 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5014 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5019 /* No index translation seems to be needed */
5022 loc.col_idx = MONO_IMPLMAP_MEMBER;
5023 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5025 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5028 return loc.result + 1;
5032 * @image: context where the image is created
5033 * @type_spec: typespec token
5035 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5039 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5041 guint32 idx = mono_metadata_token_index (type_spec);
5043 guint32 cols [MONO_TYPESPEC_SIZE];
5046 MonoType *type, *type2;
5047 MonoType stack_type;
5049 mono_loader_lock ();
5051 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5053 mono_loader_unlock ();
5057 t = &image->tables [MONO_TABLE_TYPESPEC];
5059 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5060 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5062 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], NULL)) {
5063 mono_loader_unlock ();
5067 len = mono_metadata_decode_value (ptr, &ptr);
5070 memset (type, 0, MONO_SIZEOF_TYPE);
5072 if (*ptr == MONO_TYPE_BYREF) {
5077 if (!do_mono_metadata_parse_type (type, image, NULL, ptr, &ptr)) {
5078 mono_loader_unlock ();
5082 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5085 mono_loader_unlock ();
5089 type2 = mono_image_alloc (image, MONO_SIZEOF_TYPE);
5090 memcpy (type2, type, MONO_SIZEOF_TYPE);
5091 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5093 mono_loader_unlock ();
5100 mono_image_strndup (MonoImage *image, const char *data, guint len)
5104 return g_strndup (data, len);
5105 res = mono_image_alloc (image, len + 1);
5106 memcpy (res, data, len);
5112 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5114 return mono_metadata_parse_marshal_spec_full (NULL, ptr);
5118 mono_metadata_parse_marshal_spec_full (MonoImage *image, const char *ptr)
5120 MonoMarshalSpec *res;
5122 const char *start = ptr;
5124 /* fixme: this is incomplete, but I cant find more infos in the specs */
5127 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5129 res = g_new0 (MonoMarshalSpec, 1);
5131 len = mono_metadata_decode_value (ptr, &ptr);
5132 res->native = *ptr++;
5134 if (res->native == MONO_NATIVE_LPARRAY) {
5135 res->data.array_data.param_num = -1;
5136 res->data.array_data.num_elem = -1;
5137 res->data.array_data.elem_mult = -1;
5139 if (ptr - start <= len)
5140 res->data.array_data.elem_type = *ptr++;
5141 if (ptr - start <= len)
5142 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5143 if (ptr - start <= len)
5144 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5145 if (ptr - start <= len) {
5147 * LAMESPEC: Older spec versions say this parameter comes before
5148 * num_elem. Never spec versions don't talk about elem_mult at
5149 * all, but csc still emits it, and it is used to distinguish
5150 * between param_num being 0, and param_num being omitted.
5151 * So if (param_num == 0) && (num_elem > 0), then
5152 * elem_mult == 0 -> the array size is num_elem
5153 * elem_mult == 1 -> the array size is @param_num + num_elem
5155 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5159 if (res->native == MONO_NATIVE_BYVALTSTR) {
5160 if (ptr - start <= len)
5161 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5164 if (res->native == MONO_NATIVE_BYVALARRAY) {
5165 if (ptr - start <= len)
5166 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5169 if (res->native == MONO_NATIVE_CUSTOM) {
5170 /* skip unused type guid */
5171 len = mono_metadata_decode_value (ptr, &ptr);
5173 /* skip unused native type name */
5174 len = mono_metadata_decode_value (ptr, &ptr);
5176 /* read custom marshaler type name */
5177 len = mono_metadata_decode_value (ptr, &ptr);
5178 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5180 /* read cookie string */
5181 len = mono_metadata_decode_value (ptr, &ptr);
5182 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5185 if (res->native == MONO_NATIVE_SAFEARRAY) {
5186 res->data.safearray_data.elem_type = 0;
5187 res->data.safearray_data.num_elem = 0;
5188 if (ptr - start <= len)
5189 res->data.safearray_data.elem_type = *ptr++;
5190 if (ptr - start <= len)
5191 res->data.safearray_data.num_elem = *ptr++;
5197 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5199 if (spec->native == MONO_NATIVE_CUSTOM) {
5200 g_free (spec->data.custom_data.custom_name);
5201 g_free (spec->data.custom_data.cookie);
5207 * mono_type_to_unmanaged:
5209 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5210 * describing the underlying native reprensetation of the type.
5212 * In addition the value pointed by
5213 * "conv" will contain the kind of marshalling required for this
5214 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5217 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5218 gboolean unicode, MonoMarshalConv *conv)
5220 MonoMarshalConv dummy_conv;
5226 *conv = MONO_MARSHAL_CONV_NONE;
5229 return MONO_NATIVE_UINT;
5233 case MONO_TYPE_BOOLEAN:
5235 switch (mspec->native) {
5236 case MONO_NATIVE_VARIANTBOOL:
5237 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5238 return MONO_NATIVE_VARIANTBOOL;
5239 case MONO_NATIVE_BOOLEAN:
5240 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5241 return MONO_NATIVE_BOOLEAN;
5242 case MONO_NATIVE_I1:
5243 case MONO_NATIVE_U1:
5244 return mspec->native;
5246 g_error ("cant marshal bool to native type %02x", mspec->native);
5249 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5250 return MONO_NATIVE_BOOLEAN;
5251 case MONO_TYPE_CHAR: return MONO_NATIVE_U2;
5252 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5253 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5254 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5255 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5256 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5257 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5258 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5259 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5260 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5261 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5262 case MONO_TYPE_STRING:
5264 switch (mspec->native) {
5265 case MONO_NATIVE_BSTR:
5266 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5267 return MONO_NATIVE_BSTR;
5268 case MONO_NATIVE_LPSTR:
5269 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5270 return MONO_NATIVE_LPSTR;
5271 case MONO_NATIVE_LPWSTR:
5272 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5273 return MONO_NATIVE_LPWSTR;
5274 case MONO_NATIVE_LPTSTR:
5275 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5276 return MONO_NATIVE_LPTSTR;
5277 case MONO_NATIVE_ANSIBSTR:
5278 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5279 return MONO_NATIVE_ANSIBSTR;
5280 case MONO_NATIVE_TBSTR:
5281 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5282 return MONO_NATIVE_TBSTR;
5283 case MONO_NATIVE_BYVALTSTR:
5285 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5287 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5288 return MONO_NATIVE_BYVALTSTR;
5290 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);
5294 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5295 return MONO_NATIVE_LPWSTR;
5298 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5299 return MONO_NATIVE_LPSTR;
5301 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5302 case MONO_TYPE_VALUETYPE: /*FIXME*/
5303 if (type->data.klass->enumtype) {
5304 t = mono_class_enum_basetype (type->data.klass)->type;
5307 if (type->data.klass == mono_defaults.handleref_class){
5308 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5309 return MONO_NATIVE_INT;
5311 return MONO_NATIVE_STRUCT;
5312 case MONO_TYPE_SZARRAY:
5313 case MONO_TYPE_ARRAY:
5315 switch (mspec->native) {
5316 case MONO_NATIVE_BYVALARRAY:
5317 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5318 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5320 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5321 return MONO_NATIVE_BYVALARRAY;
5322 case MONO_NATIVE_SAFEARRAY:
5323 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5324 return MONO_NATIVE_SAFEARRAY;
5325 case MONO_NATIVE_LPARRAY:
5326 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5327 return MONO_NATIVE_LPARRAY;
5329 g_error ("cant marshal array as native type %02x", mspec->native);
5333 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5334 return MONO_NATIVE_LPARRAY;
5335 case MONO_TYPE_I: return MONO_NATIVE_INT;
5336 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5337 case MONO_TYPE_CLASS:
5338 case MONO_TYPE_OBJECT: {
5339 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5341 switch (mspec->native) {
5342 case MONO_NATIVE_STRUCT:
5343 return MONO_NATIVE_STRUCT;
5344 case MONO_NATIVE_CUSTOM:
5345 return MONO_NATIVE_CUSTOM;
5346 case MONO_NATIVE_INTERFACE:
5347 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5348 return MONO_NATIVE_INTERFACE;
5349 case MONO_NATIVE_IDISPATCH:
5350 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5351 return MONO_NATIVE_IDISPATCH;
5352 case MONO_NATIVE_IUNKNOWN:
5353 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5354 return MONO_NATIVE_IUNKNOWN;
5355 case MONO_NATIVE_FUNC:
5356 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5357 type->data.klass == mono_defaults.delegate_class ||
5358 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5359 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5360 return MONO_NATIVE_FUNC;
5364 g_error ("cant marshal object as native type %02x", mspec->native);
5367 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5368 type->data.klass == mono_defaults.delegate_class ||
5369 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5370 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5371 return MONO_NATIVE_FUNC;
5373 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5374 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5375 return MONO_NATIVE_INT;
5377 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5378 return MONO_NATIVE_STRUCT;
5380 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5381 case MONO_TYPE_GENERICINST:
5382 type = &type->data.generic_class->container_class->byval_arg;
5385 case MONO_TYPE_TYPEDBYREF:
5387 g_error ("type 0x%02x not handled in marshal", t);
5389 return MONO_NATIVE_MAX;
5393 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5396 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5402 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5403 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5405 /* FIXME: Index translation */
5407 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5410 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5414 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
5416 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5418 switch (tok & MONO_METHODDEFORREF_MASK) {
5419 case MONO_METHODDEFORREF_METHODDEF:
5420 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
5421 case MONO_METHODDEFORREF_METHODREF:
5422 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
5424 g_assert_not_reached ();
5429 * mono_class_get_overrides_full:
5431 * Return the method overrides belonging to class @type_token in @overrides, and
5432 * the number of overrides in @num_overrides.
5434 * Returns: TRUE on success, FALSE on failure.
5437 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5438 MonoGenericContext *generic_context)
5441 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5444 guint32 cols [MONO_METHODIMPL_SIZE];
5445 MonoMethod **result;
5456 loc.col_idx = MONO_METHODIMPL_CLASS;
5457 loc.idx = mono_metadata_token_index (type_token);
5459 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5465 * We may end up in the middle of the rows...
5468 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5473 while (end < tdef->rows) {
5474 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5480 result = g_new (MonoMethod*, num * 2);
5481 for (i = 0; i < num; ++i) {
5484 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5485 method = method_from_method_def_or_ref (
5486 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
5489 result [i * 2] = method;
5490 method = method_from_method_def_or_ref (
5491 image, cols [MONO_METHODIMPL_BODY], generic_context);
5494 result [i * 2 + 1] = method;
5497 *overrides = result;
5499 *num_overrides = num;
5504 * mono_guid_to_string:
5506 * Converts a 16 byte Microsoft GUID to the standard string representation.
5509 mono_guid_to_string (const guint8 *guid)
5511 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5512 guid[3], guid[2], guid[1], guid[0],
5516 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
5520 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
5522 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
5523 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
5524 guint32 i, token, found;
5525 MonoClass *klass, **res;
5526 GSList *cons = NULL, *tmp;
5527 MonoGenericContext *context = &container->context;
5529 *constraints = NULL;
5531 for (i = 0; i < tdef->rows; ++i) {
5532 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
5533 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
5534 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
5535 klass = mono_class_get_full (image, token, context);
5537 g_slist_free (cons);
5540 cons = g_slist_append (cons, klass);
5543 /* contiguous list finished */
5550 res = g_new0 (MonoClass*, found + 1);
5551 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
5552 res [i] = tmp->data;
5554 g_slist_free (cons);
5560 * mono_metadata_get_generic_param_row:
5563 * @token: TypeOrMethodDef token, owner for GenericParam
5564 * @owner: coded token, set on return
5566 * Returns: 1-based row-id in the GenericParam table whose
5567 * owner is @token. 0 if not found.
5570 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
5572 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5579 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
5580 *owner = MONO_TYPEORMETHOD_TYPE;
5581 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5582 *owner = MONO_TYPEORMETHOD_METHOD;
5584 g_error ("wrong token %x to get_generic_param_row", token);
5587 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
5590 loc.col_idx = MONO_GENERICPARAM_OWNER;
5593 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5596 /* Find the first entry by searching backwards */
5597 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
5600 return loc.result + 1;
5604 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
5607 return mono_metadata_get_generic_param_row (image, token, &owner);
5611 mono_metadata_load_generic_param_constraints_full (MonoImage *image, guint32 token,
5612 MonoGenericContainer *container)
5615 guint32 start_row, i, owner;
5616 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
5618 for (i = 0; i < container->type_argc; i++) {
5619 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container))
5626 * mono_metadata_load_generic_param_constraints:
5628 * @image: metadata context
5629 * @token: metadata token to load the contraints, can be methodef or typedef.
5630 * @container: generic container to load into.
5632 * Load the generic parameter constraints for the newly created generic type or method
5633 * represented by @token and @container. The @container is the new container which has
5634 * been returned by a call to mono_metadata_load_generic_params() with this @token.
5637 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
5638 MonoGenericContainer *container)
5640 mono_metadata_load_generic_param_constraints_full (image, token, container);
5641 /*FIXME this function can potentially exit with a pending loader error and cause all sort of havok */
5645 * mono_metadata_load_generic_params:
5647 * Load the type parameters from the type or method definition @token.
5649 * Use this method after parsing a type or method definition to figure out whether it's a generic
5650 * type / method. When parsing a method definition, @parent_container points to the generic container
5651 * of the current class, if any.
5653 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
5654 * creating the type.
5656 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
5658 * LOCKING: Acquires the loader lock
5661 MonoGenericContainer *
5662 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
5664 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5665 guint32 cols [MONO_GENERICPARAM_SIZE];
5666 guint32 i, owner = 0, n;
5667 MonoGenericContainer *container;
5668 MonoGenericParamFull *params;
5669 MonoGenericContext *context;
5671 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
5673 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5676 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
5677 container->image = image;
5680 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
5681 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
5682 params [n - 1].param.owner = container;
5683 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
5684 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
5685 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
5686 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
5687 if (params [n - 1].param.num != n - 1)
5688 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
5689 if (++i > tdef->rows)
5691 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5692 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
5694 container->type_argc = n;
5695 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
5696 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
5698 container->parent = parent_container;
5700 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5701 container->is_method = 1;
5703 g_assert (container->parent == NULL || container->is_method);
5705 context = &container->context;
5706 if (container->is_method) {
5707 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
5708 context->method_inst = mono_get_shared_generic_inst (container);
5710 context->class_inst = mono_get_shared_generic_inst (container);
5717 mono_get_shared_generic_inst (MonoGenericContainer *container)
5719 MonoType **type_argv;
5721 MonoGenericInst *nginst;
5724 type_argv = g_new0 (MonoType *, container->type_argc);
5725 helper = g_new0 (MonoType, container->type_argc);
5727 for (i = 0; i < container->type_argc; i++) {
5728 MonoType *t = &helper [i];
5730 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5731 t->data.generic_param = mono_generic_container_get_param (container, i);
5736 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
5745 * mono_type_is_byref:
5746 * @type: the MonoType operated on
5748 * Returns: #TRUE if @type represents a type passed by reference,
5752 mono_type_is_byref (MonoType *type)
5758 * mono_type_get_type:
5759 * @type: the MonoType operated on
5761 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
5762 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
5765 mono_type_get_type (MonoType *type)
5771 * mono_type_get_signature:
5772 * @type: the MonoType operated on
5774 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
5776 * Returns: the MonoMethodSignature pointer that describes the signature
5777 * of the function pointer @type represents.
5779 MonoMethodSignature*
5780 mono_type_get_signature (MonoType *type)
5782 g_assert (type->type == MONO_TYPE_FNPTR);
5783 return type->data.method;
5787 * mono_type_get_class:
5788 * @type: the MonoType operated on
5790 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
5791 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
5794 * Returns: the MonoClass pointer that describes the class that @type represents.
5797 mono_type_get_class (MonoType *type)
5799 /* FIXME: review the runtime users before adding the assert here */
5800 return type->data.klass;
5804 * mono_type_get_array_type:
5805 * @type: the MonoType operated on
5807 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
5809 * Returns: a MonoArrayType struct describing the array type that @type
5810 * represents. The info includes details such as rank, array element type
5811 * and the sizes and bounds of multidimensional arrays.
5814 mono_type_get_array_type (MonoType *type)
5816 return type->data.array;
5820 * mono_type_get_ptr_type:
5821 * @type: the MonoType operated on
5823 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
5826 * Returns: the MonoType pointer that describes the type that @type
5827 * represents a pointer to.
5830 mono_type_get_ptr_type (MonoType *type)
5832 g_assert (type->type == MONO_TYPE_PTR);
5833 return type->data.type;
5837 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
5839 /* FIXME: implement */
5844 mono_signature_get_return_type (MonoMethodSignature *sig)
5850 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
5856 /* start from the first */
5857 if (sig->param_count) {
5858 *iter = &sig->params [0];
5859 return sig->params [0];
5867 if (type < &sig->params [sig->param_count]) {
5875 mono_signature_get_param_count (MonoMethodSignature *sig)
5877 return sig->param_count;
5881 mono_signature_get_call_conv (MonoMethodSignature *sig)
5883 return sig->call_convention;
5887 mono_signature_vararg_start (MonoMethodSignature *sig)
5889 return sig->sentinelpos;
5893 mono_signature_is_instance (MonoMethodSignature *sig)
5895 return sig->hasthis;
5899 mono_signature_explicit_this (MonoMethodSignature *sig)
5901 return sig->explicit_this;
5904 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
5906 mono_aligned_addr_hash (gconstpointer ptr)
5908 return GPOINTER_TO_UINT (ptr) >> 3;
5912 * If @field belongs to an inflated generic class, return the corresponding field of the
5913 * generic type definition class.
5916 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
5921 if (!field->parent->generic_class)
5924 gtd = field->parent->generic_class->container_class;
5925 offset = field - field->parent->fields;
5926 return gtd->fields + offset;
5930 * If @event belongs to an inflated generic class, return the corresponding event of the
5931 * generic type definition class.
5934 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
5939 if (!event->parent->generic_class)
5942 gtd = event->parent->generic_class->container_class;
5943 offset = event - event->parent->ext->events;
5944 return gtd->ext->events + offset;
5948 * If @property belongs to an inflated generic class, return the corresponding property of the
5949 * generic type definition class.
5952 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
5957 if (!property->parent->generic_class)
5960 gtd = property->parent->generic_class->container_class;
5961 offset = property - property->parent->ext->properties;
5962 return gtd->ext->properties + offset;