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, gboolean transient,
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_internal:
1249 * @m: a metadata context.
1250 * @transient: whenever to allocate data from the heap
1251 * @ptr: a pointer to an encoded array description.
1252 * @rptr: pointer updated to match the end of the decoded stream
1254 * Decodes the compressed array description found in the metadata @m at @ptr.
1256 * Returns: a #MonoArrayType structure describing the array type
1257 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1258 * on the value of @transient.
1260 * LOCKING: Acquires the loader lock
1262 static MonoArrayType *
1263 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1264 gboolean transient, const char *ptr, const char **rptr)
1267 MonoArrayType *array;
1270 array = transient ? g_malloc0 (sizeof (MonoArrayType)) : mono_image_alloc0 (m, sizeof (MonoArrayType));
1271 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1274 array->eklass = mono_class_from_mono_type (etype);
1275 array->rank = mono_metadata_decode_value (ptr, &ptr);
1277 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1278 if (array->numsizes)
1279 array->sizes = transient ? g_malloc0 (sizeof (int) * array->numsizes) : mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1280 for (i = 0; i < array->numsizes; ++i)
1281 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1283 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1284 if (array->numlobounds)
1285 array->lobounds = transient ? g_malloc0 (sizeof (int) * array->numlobounds) : mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1286 for (i = 0; i < array->numlobounds; ++i)
1287 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1295 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1296 const char *ptr, const char **rptr)
1298 return mono_metadata_parse_array_internal (m, container, FALSE, ptr, rptr);
1302 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1304 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1308 * mono_metadata_free_array:
1309 * @array: array description
1311 * Frees the array description returned from mono_metadata_parse_array().
1314 mono_metadata_free_array (MonoArrayType *array)
1316 g_free (array->sizes);
1317 g_free (array->lobounds);
1322 * need to add common field and param attributes combinations:
1325 * public static literal
1328 * private static literal
1330 static const MonoType
1332 /* data, attrs, type, nmods, byref, pinned */
1333 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1334 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1335 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1336 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1337 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1338 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1339 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1340 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1341 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1342 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1343 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1344 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1345 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1346 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1347 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1348 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1349 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1350 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1351 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1352 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1353 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1354 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1355 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1356 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1357 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1358 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1359 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1360 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1361 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1362 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1363 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1364 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1365 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1366 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1369 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1371 static GHashTable *type_cache = NULL;
1372 static int next_generic_inst_id = 0;
1374 static MonoImageSet *mscorlib_image_set;
1375 static GPtrArray *image_sets;
1377 static guint mono_generic_class_hash (gconstpointer data);
1380 * MonoTypes with modifies are never cached, so we never check or use that field.
1383 mono_type_hash (gconstpointer data)
1385 const MonoType *type = (const MonoType *) data;
1386 if (type->type == MONO_TYPE_GENERICINST)
1387 return mono_generic_class_hash (type->data.generic_class);
1389 return type->type | (type->byref << 8) | (type->attrs << 9);
1393 mono_type_equal (gconstpointer ka, gconstpointer kb)
1395 const MonoType *a = (const MonoType *) ka;
1396 const MonoType *b = (const MonoType *) kb;
1398 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1400 /* need other checks */
1405 mono_metadata_generic_inst_hash (gconstpointer data)
1407 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1411 for (i = 0; i < ginst->type_argc; ++i) {
1413 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1416 return hash ^ (ginst->is_open << 8);
1420 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1424 #ifndef MONO_SMALL_CONFIG
1425 if (a->id && b->id) {
1428 if (!signature_only)
1433 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1435 for (i = 0; i < a->type_argc; ++i) {
1436 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1443 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1445 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1446 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1448 return mono_generic_inst_equal_full (a, b, FALSE);
1452 mono_generic_class_hash (gconstpointer data)
1454 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1455 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1458 hash += gclass->is_tb_open;
1459 hash += mono_metadata_generic_context_hash (&gclass->context);
1465 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1467 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1468 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1470 return _mono_metadata_generic_class_equal (a, b, FALSE);
1474 * mono_metadata_init:
1476 * Initialize the global variables of this module.
1477 * This is a Mono runtime internal function.
1480 mono_metadata_init (void)
1484 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1486 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1487 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1491 * mono_metadata_cleanup:
1493 * Free all resources used by this module.
1494 * This is a Mono runtime internal function.
1497 mono_metadata_cleanup (void)
1499 g_hash_table_destroy (type_cache);
1501 g_ptr_array_free (image_sets, TRUE);
1506 * mono_metadata_parse_type:
1507 * @m: metadata context
1508 * @mode: king of type that may be found at @ptr
1509 * @opt_attrs: optional attributes to store in the returned type
1510 * @ptr: pointer to the type representation
1511 * @rptr: pointer updated to match the end of the decoded stream
1512 * @transient: whenever to allocate the result from the heap or from a mempool
1514 * Decode a compressed type description found at @ptr in @m.
1515 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1516 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1517 * This function can be used to decode type descriptions in method signatures,
1518 * field signatures, locals signatures etc.
1520 * To parse a generic type, `generic_container' points to the current class'es
1521 * (the `generic_container' field in the MonoClass) or the current generic method's
1522 * (stored in image->property_hash) generic container.
1523 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1524 * this MonoGenericContainer.
1526 * LOCKING: Acquires the loader lock.
1528 * Returns: a #MonoType structure representing the decoded type.
1531 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1532 short opt_attrs, gboolean transient, const char *ptr, const char **rptr)
1534 MonoType *type, *cached;
1536 gboolean byref = FALSE;
1537 gboolean pinned = FALSE;
1538 const char *tmp_ptr;
1543 * According to the spec, custom modifiers should come before the byref
1544 * flag, but the IL produced by ilasm from the following signature:
1545 * object modopt(...) &
1546 * starts with a byref flag, followed by the modifiers. (bug #49802)
1547 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1548 * it would be better to treat byref as real type constructor instead of
1550 * Also, pinned should come before anything else, but some MSV++ produced
1551 * assemblies violate this (#bug 61990).
1554 /* Count the modifiers first */
1559 case MONO_TYPE_PINNED:
1560 case MONO_TYPE_BYREF:
1563 case MONO_TYPE_CMOD_REQD:
1564 case MONO_TYPE_CMOD_OPT:
1566 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1576 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1577 type = transient ? g_malloc0 (size) : mono_image_alloc0 (m, size);
1578 type->num_mods = count;
1580 g_warning ("got more than 64 modifiers in type");
1583 memset (type, 0, MONO_SIZEOF_TYPE);
1586 /* Parse pinned, byref and custom modifiers */
1591 case MONO_TYPE_PINNED:
1595 case MONO_TYPE_BYREF:
1599 case MONO_TYPE_CMOD_REQD:
1600 case MONO_TYPE_CMOD_OPT:
1601 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1609 type->attrs = opt_attrs;
1610 type->byref = byref;
1611 type->pinned = pinned ? 1 : 0;
1613 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr)) {
1620 if (!type->num_mods && !transient) {
1621 /* no need to free type here, because it is on the stack */
1622 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1623 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1625 /* Consider the case:
1627 class Foo<T> { class Bar {} }
1628 class Test : Foo<Test>.Bar {}
1630 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1631 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1633 We ensure that the MonoClass is in a state that we can canonicalize to:
1635 klass->byval_arg.data.klass == klass
1636 klass->this_arg.data.klass == klass
1638 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1640 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1641 of a MonoClass which currently holds the loader lock. 'type' is local.
1643 if (ret->data.klass == type->data.klass) {
1647 /* No need to use locking since nobody is modifying the hash table */
1648 if ((cached = g_hash_table_lookup (type_cache, type))) {
1653 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1655 if (type == &stype) {
1656 type = transient ? g_malloc (MONO_SIZEOF_TYPE) : mono_image_alloc (m, MONO_SIZEOF_TYPE);
1657 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1663 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1664 short opt_attrs, const char *ptr, const char **rptr)
1666 return mono_metadata_parse_type_internal (m, container, mode, opt_attrs, FALSE, ptr, rptr);
1670 * LOCKING: Acquires the loader lock.
1673 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1674 const char *ptr, const char **rptr)
1676 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1680 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1682 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1683 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1684 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1686 if (def < methodt->rows)
1687 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1689 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1691 for (i = param_index; i < lastp; ++i) {
1692 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1701 * mono_metadata_get_param_attrs:
1703 * @m The image to loader parameter attributes from
1704 * @def method def token (one based)
1705 * @param_count number of params to decode including the return value
1707 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1708 * returned memory needs to be freed by the caller. If all the param attributes are
1709 * 0, then NULL is returned.
1712 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1714 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1715 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1716 guint32 cols [MONO_PARAM_SIZE];
1717 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1720 if (def < methodt->rows)
1721 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1723 lastp = paramt->rows + 1;
1725 for (i = param_index; i < lastp; ++i) {
1726 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1727 if (cols [MONO_PARAM_FLAGS]) {
1729 pattrs = g_new0 (int, param_count);
1730 /* at runtime we just ignore this kind of malformed file:
1731 * the verifier can signal the error to the user
1733 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1735 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1743 * mono_metadata_parse_signature_full:
1744 * @image: metadata context
1745 * @generic_container: generic container
1746 * @toke: metadata token
1748 * Decode a method signature stored in the STANDALONESIG table
1750 * LOCKING: Assumes the loader lock is held.
1752 * Returns: a MonoMethodSignature describing the signature.
1754 MonoMethodSignature*
1755 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1757 MonoTableInfo *tables = image->tables;
1758 guint32 idx = mono_metadata_token_index (token);
1763 return mono_lookup_dynamic_token (image, token, NULL);
1765 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1767 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1769 ptr = mono_metadata_blob_heap (image, sig);
1770 mono_metadata_decode_blob_size (ptr, &ptr);
1772 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1776 * mono_metadata_parse_signature:
1777 * @image: metadata context
1778 * @toke: metadata token
1780 * Decode a method signature stored in the STANDALONESIG table
1782 * Returns: a MonoMethodSignature describing the signature.
1784 MonoMethodSignature*
1785 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1787 return mono_metadata_parse_signature_full (image, NULL, token);
1791 * mono_metadata_signature_alloc:
1792 * @image: metadata context
1793 * @nparmas: number of parameters in the signature
1795 * Allocate a MonoMethodSignature structure with the specified number of params.
1796 * The return type and the params types need to be filled later.
1797 * This is a Mono runtime internal function.
1799 * LOCKING: Assumes the loader lock is held.
1801 * Returns: the new MonoMethodSignature structure.
1803 MonoMethodSignature*
1804 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1806 MonoMethodSignature *sig;
1808 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1809 sig->param_count = nparams;
1810 sig->sentinelpos = -1;
1815 static MonoMethodSignature*
1816 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1819 MonoMethodSignature *ret;
1820 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1823 ret = mono_image_alloc (image, sigsize);
1825 ret = mono_mempool_alloc (mp, sigsize);
1827 ret = g_malloc (sigsize);
1829 memcpy (ret, sig, sigsize);
1833 MonoMethodSignature*
1834 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1836 return mono_metadata_signature_dup_internal (image, NULL, sig);
1839 /*The mempool is accessed without synchronization*/
1840 MonoMethodSignature*
1841 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1843 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1847 * mono_metadata_signature_dup:
1848 * @sig: method signature
1850 * Duplicate an existing MonoMethodSignature so it can be modified.
1851 * This is a Mono runtime internal function.
1853 * Returns: the new MonoMethodSignature structure.
1855 MonoMethodSignature*
1856 mono_metadata_signature_dup (MonoMethodSignature *sig)
1858 return mono_metadata_signature_dup_full (NULL, sig);
1862 * mono_metadata_signature_size:
1864 * Return the amount of memory allocated to SIG.
1867 mono_metadata_signature_size (MonoMethodSignature *sig)
1869 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1873 * mono_metadata_parse_method_signature:
1874 * @m: metadata context
1875 * @generic_container: generics container
1876 * @def: the MethodDef index or 0 for Ref signatures.
1877 * @ptr: pointer to the signature metadata representation
1878 * @rptr: pointer updated to match the end of the decoded stream
1880 * Decode a method signature stored at @ptr.
1881 * This is a Mono runtime internal function.
1883 * LOCKING: Assumes the loader lock is held.
1885 * Returns: a MonoMethodSignature describing the signature.
1887 MonoMethodSignature *
1888 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1889 int def, const char *ptr, const char **rptr)
1891 MonoMethodSignature *method;
1892 int i, *pattrs = NULL;
1893 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1894 guint32 gen_param_count = 0;
1895 gboolean is_open = FALSE;
1898 gen_param_count = 1;
1903 call_convention = *ptr & 0x0F;
1905 if (gen_param_count)
1906 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1907 param_count = mono_metadata_decode_value (ptr, &ptr);
1910 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 */
1912 method = mono_metadata_signature_alloc (m, param_count);
1913 method->hasthis = hasthis;
1914 method->explicit_this = explicit_this;
1915 method->call_convention = call_convention;
1916 method->generic_param_count = gen_param_count;
1918 if (call_convention != 0xa) {
1919 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1921 mono_metadata_free_method_signature (method);
1925 is_open = mono_class_is_open_constructed_type (method->ret);
1928 for (i = 0; i < method->param_count; ++i) {
1929 if (*ptr == MONO_TYPE_SENTINEL) {
1930 if (method->call_convention != MONO_CALL_VARARG || def) {
1931 g_warning ("found sentinel for methoddef or no vararg method 0x%08x on image %s", def, m->name);
1935 if (method->sentinelpos >= 0) {
1936 g_warning ("found sentinel twice in the same signature for method 0x%08x on image %s", def, m->name);
1940 method->sentinelpos = i;
1943 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1944 if (!method->params [i]) {
1945 mono_metadata_free_method_signature (method);
1950 is_open = mono_class_is_open_constructed_type (method->params [i]);
1953 /* The sentinel could be missing if the caller does not pass any additional arguments */
1954 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1955 method->sentinelpos = method->param_count;
1957 method->has_type_parameters = is_open;
1959 if (def && (method->call_convention == MONO_CALL_VARARG))
1960 method->sentinelpos = method->param_count;
1967 * Add signature to a cache and increase ref count...
1974 * mono_metadata_parse_method_signature:
1975 * @m: metadata context
1976 * @def: the MethodDef index or 0 for Ref signatures.
1977 * @ptr: pointer to the signature metadata representation
1978 * @rptr: pointer updated to match the end of the decoded stream
1980 * Decode a method signature stored at @ptr.
1981 * This is a Mono runtime internal function.
1983 * LOCKING: Assumes the loader lock is held.
1985 * Returns: a MonoMethodSignature describing the signature.
1987 MonoMethodSignature *
1988 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1990 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1994 * mono_metadata_free_method_signature:
1995 * @sig: signature to destroy
1997 * Free the memory allocated in the signature @sig.
1998 * This method needs to be robust and work also on partially-built
1999 * signatures, so it does extra checks.
2002 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2004 /* Everything is allocated from mempools */
2008 mono_metadata_free_type (sig->ret);
2009 for (i = 0; i < sig->param_count; ++i) {
2010 if (sig->params [i])
2011 mono_metadata_free_type (sig->params [i]);
2017 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2021 /* Allocated in inflate_generic_signature () */
2023 mono_metadata_free_type (sig->ret);
2024 for (i = 0; i < sig->param_count; ++i) {
2025 if (sig->params [i])
2026 mono_metadata_free_type (sig->params [i]);
2032 inflated_method_equal (gconstpointer a, gconstpointer b)
2034 const MonoMethodInflated *ma = a;
2035 const MonoMethodInflated *mb = b;
2036 if (ma->declaring != mb->declaring)
2038 if (ma->method.method.is_mb_open != mb->method.method.is_mb_open)
2040 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2044 inflated_method_hash (gconstpointer a)
2046 const MonoMethodInflated *ma = a;
2047 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring)) + ma->method.method.is_mb_open;
2051 inflated_signature_equal (gconstpointer a, gconstpointer b)
2053 const MonoInflatedMethodSignature *sig1 = a;
2054 const MonoInflatedMethodSignature *sig2 = b;
2056 /* sig->sig is assumed to be canonized */
2057 if (sig1->sig != sig2->sig)
2059 /* The generic instances are canonized */
2060 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2064 inflated_signature_hash (gconstpointer a)
2066 const MonoInflatedMethodSignature *sig = a;
2068 /* sig->sig is assumed to be canonized */
2069 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2073 dump_ginst (MonoGenericInst *ginst)
2078 g_print ("Ginst: <");
2079 for (i = 0; i < ginst->type_argc; ++i) {
2082 name = mono_type_get_name (ginst->type_argv [i]);
2083 g_print ("%s", name);
2089 static gboolean type_in_image (MonoType *type, MonoImage *image);
2092 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2094 gpointer iter = NULL;
2097 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2098 if (type_in_image (p, image))
2101 return type_in_image (mono_signature_get_return_type (sig), image);
2105 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2109 for (i = 0; i < ginst->type_argc; ++i) {
2110 if (type_in_image (ginst->type_argv [i], image))
2118 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2120 return gclass->container_class->image == image ||
2121 ginst_in_image (gclass->context.class_inst, image);
2125 type_in_image (MonoType *type, MonoImage *image)
2128 switch (type->type) {
2129 case MONO_TYPE_GENERICINST:
2130 return gclass_in_image (type->data.generic_class, image);
2132 type = type->data.type;
2134 case MONO_TYPE_SZARRAY:
2135 type = &type->data.klass->byval_arg;
2137 case MONO_TYPE_ARRAY:
2138 type = &type->data.array->eklass->byval_arg;
2140 case MONO_TYPE_FNPTR:
2141 return signature_in_image (type->data.method, image);
2142 case MONO_TYPE_VAR: {
2143 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2145 g_assert (!container->is_method);
2147 * FIXME: The following check is here solely
2148 * for monodis, which uses the internal
2150 * mono_metadata_load_generic_params(). The
2151 * caller of that function needs to fill in
2152 * owner->klass or owner->method of the
2153 * returned struct, but monodis doesn't do
2154 * that. The image unloading depends on that,
2155 * however, so a crash results without this
2158 if (!container->owner.klass)
2159 return container->image == image;
2160 return container->owner.klass->image == image;
2162 return type->data.generic_param->image == image;
2165 case MONO_TYPE_MVAR: {
2166 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2167 if (type->data.generic_param->image == image)
2170 g_assert (container->is_method);
2171 if (!container->owner.method)
2172 /* RefEmit created generic param whose method is not finished */
2173 return container->image == image;
2174 return container->owner.method->klass->image == image;
2176 return type->data.generic_param->image == image;
2180 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2181 return image == mono_class_from_mono_type (type)->image;
2188 * Return a MonoImageSet representing the set of images in IMAGES.
2190 * LOCKING: Assumes the loader lock is held.
2192 static MonoImageSet*
2193 get_image_set (MonoImage **images, int nimages)
2200 image_sets = g_ptr_array_new ();
2203 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2204 return mscorlib_image_set;
2206 /* Happens with empty generic instances */
2208 return mscorlib_image_set;
2210 if (images [0] == mono_defaults.corlib && nimages > 1)
2211 l = images [1]->image_sets;
2213 l = images [0]->image_sets;
2216 for (; l; l = l->next) {
2219 if (set->nimages == nimages) {
2220 for (j = 0; j < nimages; ++j) {
2221 for (k = 0; k < nimages; ++k)
2222 if (set->images [k] == images [j])
2236 set = g_new0 (MonoImageSet, 1);
2237 set->nimages = nimages;
2238 set->images = g_new0 (MonoImage*, nimages);
2239 InitializeCriticalSection (&set->lock);
2240 for (i = 0; i < nimages; ++i)
2241 set->images [i] = images [i];
2242 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2243 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2244 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2245 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2247 for (i = 0; i < nimages; ++i)
2248 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2250 g_ptr_array_add (image_sets, set);
2253 if (nimages == 1 && images [0] == mono_defaults.corlib)
2254 mscorlib_image_set = set;
2260 delete_image_set (MonoImageSet *set)
2264 g_hash_table_destroy (set->gclass_cache);
2265 g_hash_table_destroy (set->ginst_cache);
2266 g_hash_table_destroy (set->gmethod_cache);
2267 g_hash_table_destroy (set->gsignature_cache);
2269 for (i = 0; i < set->nimages; ++i)
2270 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2272 g_ptr_array_remove (image_sets, set);
2275 mono_mempool_destroy (set->mempool);
2276 g_free (set->images);
2277 DeleteCriticalSection (&set->lock);
2282 * Structure used by the collect_..._images functions to store the image list.
2285 MonoImage *image_buf [64];
2287 int nimages, images_len;
2291 collect_data_init (CollectData *data)
2293 data->images = data->image_buf;
2294 data->images_len = 64;
2299 collect_data_free (CollectData *data)
2301 if (data->images != data->image_buf)
2302 g_free (data->images);
2306 enlarge_data (CollectData *data)
2308 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2309 MonoImage **d = g_new (MonoImage *, new_len);
2312 g_assert_not_reached ();
2313 memcpy (d, data->images, data->images_len);
2314 if (data->images != data->image_buf)
2315 g_free (data->images);
2317 data->images_len = new_len;
2321 add_image (MonoImage *image, CollectData *data)
2325 /* The arrays are small, so use a linear search instead of a hash table */
2326 for (i = 0; i < data->nimages; ++i)
2327 if (data->images [i] == image)
2330 if (data->nimages == data->images_len)
2331 enlarge_data (data);
2333 data->images [data->nimages ++] = image;
2337 collect_type_images (MonoType *type, CollectData *data);
2340 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2344 for (i = 0; i < ginst->type_argc; ++i) {
2345 collect_type_images (ginst->type_argv [i], data);
2350 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2352 add_image (gclass->container_class->image, data);
2353 if (gclass->context.class_inst)
2354 collect_ginst_images (gclass->context.class_inst, data);
2358 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2360 gpointer iter = NULL;
2363 collect_type_images (mono_signature_get_return_type (sig), data);
2364 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2365 collect_type_images (p, data);
2369 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2371 collect_signature_images (sig->sig, data);
2372 if (sig->context.class_inst)
2373 collect_ginst_images (sig->context.class_inst, data);
2374 if (sig->context.method_inst)
2375 collect_ginst_images (sig->context.method_inst, data);
2379 collect_method_images (MonoMethodInflated *method, CollectData *data)
2381 add_image (method->declaring->klass->image, data);
2382 if (method->context.class_inst)
2383 collect_ginst_images (method->context.class_inst, data);
2384 if (method->context.method_inst)
2385 collect_ginst_images (method->context.method_inst, data);
2387 if (((MonoMethod*)method)->signature)
2388 collect_signature_images (mono_method_signature ((MonoMethod*)method), data);
2393 collect_type_images (MonoType *type, CollectData *data)
2396 switch (type->type) {
2397 case MONO_TYPE_GENERICINST:
2398 collect_gclass_images (type->data.generic_class, data);
2401 type = type->data.type;
2403 case MONO_TYPE_SZARRAY:
2404 type = &type->data.klass->byval_arg;
2406 case MONO_TYPE_ARRAY:
2407 type = &type->data.array->eklass->byval_arg;
2409 case MONO_TYPE_FNPTR:
2410 //return signature_in_image (type->data.method, image);
2411 g_assert_not_reached ();
2412 case MONO_TYPE_VAR: {
2413 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2415 g_assert (!container->is_method);
2417 * FIXME: The following check is here solely
2418 * for monodis, which uses the internal
2420 * mono_metadata_load_generic_params(). The
2421 * caller of that function needs to fill in
2422 * owner->klass or owner->method of the
2423 * returned struct, but monodis doesn't do
2424 * that. The image unloading depends on that,
2425 * however, so a crash results without this
2428 if (!container->owner.klass)
2429 add_image (container->image, data);
2431 add_image (container->owner.klass->image, data);
2433 add_image (type->data.generic_param->image, data);
2437 case MONO_TYPE_MVAR: {
2438 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2439 if (type->data.generic_param->image)
2440 add_image (type->data.generic_param->image, data);
2442 if (!container->owner.method) {
2443 /* RefEmit created generic param whose method is not finished */
2444 add_image (container->image, data);
2446 g_assert (container->is_method);
2447 add_image (container->owner.method->klass->image, data);
2450 add_image (type->data.generic_param->image, data);
2454 case MONO_TYPE_CLASS:
2455 case MONO_TYPE_VALUETYPE:
2456 add_image (mono_class_from_mono_type (type)->image, data);
2459 add_image (mono_defaults.corlib, data);
2466 } CleanForImageUserData;
2469 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2471 MonoGenericClass *gclass = key;
2472 CleanForImageUserData *user_data = data;
2474 g_assert (gclass_in_image (gclass, user_data->image));
2476 user_data->list = g_slist_prepend (user_data->list, gclass);
2481 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2483 MonoGenericInst *ginst = key;
2484 CleanForImageUserData *user_data = data;
2486 // This doesn't work during corlib compilation
2487 //g_assert (ginst_in_image (ginst, user_data->image));
2489 user_data->list = g_slist_prepend (user_data->list, ginst);
2494 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2496 MonoImage *image = data;
2497 MonoMethodInflated *method = key;
2500 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2501 g_assert (method->declaring->klass->image == image ||
2502 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2503 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2509 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2511 MonoImage *image = data;
2512 MonoInflatedMethodSignature *sig = key;
2514 return signature_in_image (sig->sig, image) ||
2515 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2516 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2520 check_gmethod (gpointer key, gpointer value, gpointer data)
2522 MonoMethodInflated *method = key;
2523 MonoImage *image = data;
2525 if (method->context.class_inst)
2526 g_assert (!ginst_in_image (method->context.class_inst, image));
2527 if (method->context.method_inst)
2528 g_assert (!ginst_in_image (method->context.method_inst, image));
2529 if (((MonoMethod*)method)->signature)
2530 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2536 * Run a consistency check on the image set data structures.
2538 static G_GNUC_UNUSED void
2539 check_image_sets (MonoImage *image)
2542 GSList *l = image->image_sets;
2547 for (i = 0; i < image_sets->len; ++i) {
2548 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2550 if (!g_slist_find (l, set)) {
2551 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2557 mono_metadata_clean_for_image (MonoImage *image)
2559 CleanForImageUserData ginst_data, gclass_data;
2560 GSList *l, *set_list, *free_list = NULL;
2562 //check_image_sets (image);
2564 /* The data structures could reference each other so we delete them in two phases */
2565 ginst_data.image = gclass_data.image = image;
2566 ginst_data.list = gclass_data.list = NULL;
2567 mono_loader_lock ();
2569 /* Collect the items to delete */
2570 /* delete_image_set () modifies the lists so make a copy */
2571 for (l = image->image_sets; l; l = l->next) {
2572 MonoImageSet *set = l->data;
2574 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2575 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2576 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2577 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2580 /* Delete the removed items */
2581 for (l = ginst_data.list; l; l = l->next)
2582 free_list = g_slist_concat (free_generic_inst_dependents (l->data), free_list);
2583 for (l = gclass_data.list; l; l = l->next)
2584 free_list = g_slist_concat (free_generic_class_dependents (l->data), free_list);
2585 g_slist_free (ginst_data.list);
2586 g_slist_free (gclass_data.list);
2587 /* delete_image_set () modifies the lists so make a copy */
2588 set_list = g_slist_copy (image->image_sets);
2589 for (l = set_list; l; l = l->next) {
2590 MonoImageSet *set = l->data;
2592 delete_image_set (set);
2594 g_slist_free (set_list);
2596 mono_loader_unlock ();
2602 free_inflated_method (MonoMethodInflated *imethod)
2605 MonoMethod *method = (MonoMethod*)imethod;
2607 mono_marshal_free_inflated_wrappers (method);
2609 if (method->signature)
2610 mono_metadata_free_inflated_signature (method->signature);
2612 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))) {
2613 MonoMethodHeader *header = imethod->header;
2616 /* Allocated in inflate_generic_header () */
2617 for (i = 0; i < header->num_locals; ++i)
2618 mono_metadata_free_type (header->locals [i]);
2619 g_free (header->clauses);
2628 free_list_with_data (GSList *l)
2632 l = g_slist_delete_link (l, l);
2637 free_generic_inst_dependents (MonoGenericInst *ginst)
2641 for (i = 0; i < ginst->type_argc; ++i)
2642 mono_metadata_free_type (ginst->type_argv [i]);
2643 return g_slist_prepend (NULL, ginst);
2647 free_generic_inst (MonoGenericInst *ginst)
2649 free_list_with_data (free_generic_inst_dependents (ginst));
2653 free_generic_class_dependents (MonoGenericClass *gclass)
2658 /* FIXME: The dynamic case */
2659 if (gclass->cached_class && !gclass->cached_class->image->dynamic && !mono_generic_class_is_generic_type_definition (gclass)) {
2660 MonoClass *class = gclass->cached_class;
2662 /* Allocated in mono_class_init () */
2663 g_free (class->methods);
2665 g_free (class->ext->properties);
2666 g_free (class->ext->field_def_values);
2668 /* Allocated in mono_class_setup_fields () */
2669 g_free (class->fields);
2670 /* Allocated in mono_class_setup_vtable_general () */
2671 g_free (class->vtable);
2672 /* Allocated in mono_generic_class_get_class () */
2673 g_free (class->interfaces);
2674 /* Allocated in setup_interface_offsets () */
2675 g_free (class->interfaces_packed);
2676 g_free (class->interface_offsets_packed);
2677 g_free (class->interface_bitmap);
2678 /* Allocated in mono_class_setup_supertypes () */
2679 g_free (class->supertypes);
2680 l = g_slist_prepend (l, class);
2681 } else if (gclass->is_dynamic) {
2682 MonoDynamicGenericClass *dgclass = (MonoDynamicGenericClass *)gclass;
2684 for (i = 0; i < dgclass->count_fields; ++i) {
2685 MonoClassField *field = dgclass->fields + i;
2686 mono_metadata_free_type (field->type);
2687 g_free ((char*)field->name);
2689 MONO_GC_UNREGISTER_ROOT (dgclass->field_objects [i]);
2693 g_free (dgclass->methods);
2694 g_free (dgclass->ctors);
2695 g_free (dgclass->fields);
2696 g_free (dgclass->field_objects);
2697 g_free (dgclass->field_generic_types);
2698 if (!mono_generic_class_is_generic_type_definition (gclass))
2699 l = g_slist_prepend (l, gclass->cached_class);
2701 return g_slist_prepend (l, gclass);
2705 free_generic_class (MonoGenericClass *gclass)
2707 free_list_with_data (free_generic_class_dependents (gclass));
2711 free_inflated_signature (MonoInflatedMethodSignature *sig)
2713 mono_metadata_free_inflated_signature (sig->sig);
2718 * LOCKING: assumes the loader lock is held.
2721 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2726 collect_data_init (&data);
2728 collect_method_images (method, &data);
2730 set = get_image_set (data.images, data.nimages);
2732 collect_data_free (&data);
2735 g_hash_table_insert (set->gmethod_cache, method, method);
2739 return g_hash_table_lookup (set->gmethod_cache, method);
2744 * mono_metadata_get_inflated_signature:
2746 * Given an inflated signature and a generic context, return a canonical copy of the
2747 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2749 MonoMethodSignature *
2750 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2752 MonoInflatedMethodSignature helper;
2753 MonoInflatedMethodSignature *res;
2757 mono_loader_lock ();
2760 helper.context.class_inst = context->class_inst;
2761 helper.context.method_inst = context->method_inst;
2763 collect_data_init (&data);
2765 collect_inflated_signature_images (&helper, &data);
2767 set = get_image_set (data.images, data.nimages);
2769 collect_data_free (&data);
2771 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2773 res = g_new0 (MonoInflatedMethodSignature, 1);
2775 res->context.class_inst = context->class_inst;
2776 res->context.method_inst = context->method_inst;
2777 g_hash_table_insert (set->gsignature_cache, res, res);
2780 mono_loader_unlock ();
2785 * mono_metadata_get_generic_inst:
2787 * Given a list of types, return a MonoGenericInst that represents that list.
2788 * The returned MonoGenericInst has its own copy of the list of types. The list
2789 * passed in the argument can be freed, modified or disposed of.
2793 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2795 MonoGenericInst *ginst;
2798 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2802 for (i = 0; i < type_argc; ++i)
2803 if (mono_class_is_open_constructed_type (type_argv [i]))
2805 is_open = (i < type_argc);
2807 ginst = alloca (size);
2808 #ifndef MONO_SMALL_CONFIG
2811 ginst->is_open = is_open;
2812 ginst->type_argc = type_argc;
2813 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2815 mono_loader_lock ();
2817 collect_data_init (&data);
2819 collect_ginst_images (ginst, &data);
2821 set = get_image_set (data.images, data.nimages);
2823 collect_data_free (&data);
2825 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2827 ginst = g_malloc (size);
2828 #ifndef MONO_SMALL_CONFIG
2829 ginst->id = ++next_generic_inst_id;
2831 ginst->is_open = is_open;
2832 ginst->type_argc = type_argc;
2834 for (i = 0; i < type_argc; ++i)
2835 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2837 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2840 mono_loader_unlock ();
2845 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2847 MonoGenericContainer *container = container_class->generic_container;
2849 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2851 return inst == container->context.class_inst;
2855 * mono_metadata_lookup_generic_class:
2857 * Returns a MonoGenericClass with the given properties.
2861 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2863 MonoGenericClass *gclass;
2864 MonoGenericClass helper;
2865 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2869 helper.container_class = container_class;
2870 helper.context.class_inst = inst;
2871 helper.context.method_inst = NULL;
2872 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2873 helper.is_tb_open = is_tb_open;
2874 helper.cached_class = NULL;
2876 mono_loader_lock ();
2878 collect_data_init (&data);
2880 collect_gclass_images (&helper, &data);
2882 set = get_image_set (data.images, data.nimages);
2884 collect_data_free (&data);
2886 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
2888 /* A tripwire just to keep us honest */
2889 g_assert (!helper.cached_class);
2892 mono_loader_unlock ();
2897 MonoDynamicGenericClass *dgclass = g_new0 (MonoDynamicGenericClass, 1);
2898 gclass = &dgclass->generic_class;
2899 gclass->is_dynamic = 1;
2901 gclass = g_new0 (MonoGenericClass, 1);
2904 gclass->is_tb_open = is_tb_open;
2905 gclass->container_class = container_class;
2906 gclass->context.class_inst = inst;
2907 gclass->context.method_inst = NULL;
2908 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2909 gclass->cached_class = container_class;
2911 g_hash_table_insert (set->gclass_cache, gclass, gclass);
2913 mono_loader_unlock ();
2919 * mono_metadata_inflate_generic_inst:
2921 * Instantiate the generic instance @ginst with the context @context.
2922 * Check @error for success.
2926 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
2928 MonoType **type_argv;
2929 MonoGenericInst *nginst = NULL;
2932 mono_error_init (error);
2934 if (!ginst->is_open)
2937 type_argv = g_new0 (MonoType*, ginst->type_argc);
2939 for (i = 0; i < ginst->type_argc; i++) {
2940 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
2941 if (!mono_error_ok (error))
2946 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2949 for (i = 0; i < count; i++)
2950 mono_metadata_free_type (type_argv [i]);
2957 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2958 int count, const char *ptr, const char **rptr)
2960 MonoType **type_argv;
2961 MonoGenericInst *ginst;
2964 type_argv = g_new0 (MonoType*, count);
2966 for (i = 0; i < count; i++) {
2967 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2978 ginst = mono_metadata_get_generic_inst (count, type_argv);
2986 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2987 const char *ptr, const char **rptr)
2989 MonoGenericInst *inst;
2994 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
2998 gklass = mono_class_from_mono_type (gtype);
2999 if (!gklass->generic_container)
3002 count = mono_metadata_decode_value (ptr, &ptr);
3003 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
3010 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3016 * @gc: The generic container to normalize
3017 * @type: The kind of generic parameters the resulting generic-container should contain
3020 static MonoGenericContainer *
3021 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3023 gboolean is_var = (type == MONO_TYPE_VAR);
3027 g_assert (is_var || type == MONO_TYPE_MVAR);
3030 if (gc->is_method || gc->parent)
3032 * The current MonoGenericContainer is a generic method -> its `parent'
3033 * points to the containing class'es container.
3042 * mono_metadata_parse_generic_param:
3043 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3044 * see mono_metadata_parse_type_full() for details.
3045 * Internal routine to parse a generic type parameter.
3046 * LOCKING: Acquires the loader lock
3048 static MonoGenericParam *
3049 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3050 MonoTypeEnum type, const char *ptr, const char **rptr)
3052 int index = mono_metadata_decode_value (ptr, &ptr);
3056 generic_container = select_container (generic_container, type);
3057 if (!generic_container) {
3058 /* Create dummy MonoGenericParam */
3059 MonoGenericParam *param;
3061 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3068 if (index >= generic_container->type_argc)
3071 return mono_generic_container_get_param (generic_container, index);
3075 * mono_metadata_get_shared_type:
3077 * Return a shared instance of TYPE, if available, NULL otherwise.
3078 * Shared MonoType instances help save memory. Their contents should not be modified
3079 * by the caller. They do not need to be freed as their lifetime is bound by either
3080 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3081 * instance they are embedded in. If they are freed, they should be freed using
3082 * mono_metadata_free_type () instead of g_free ().
3085 mono_metadata_get_shared_type (MonoType *type)
3089 /* No need to use locking since nobody is modifying the hash table */
3090 if ((cached = g_hash_table_lookup (type_cache, type)))
3093 switch (type->type){
3094 case MONO_TYPE_CLASS:
3095 case MONO_TYPE_VALUETYPE:
3096 if (type == &type->data.klass->byval_arg)
3098 if (type == &type->data.klass->this_arg)
3107 * do_mono_metadata_parse_type:
3108 * @type: MonoType to be filled in with the return value
3110 * @generic_context: generics_context
3111 * @transient: whenever to allocate data from the heap
3112 * @ptr: pointer to the encoded type
3113 * @rptr: pointer where the end of the encoded type is saved
3115 * Internal routine used to "fill" the contents of @type from an
3116 * allocated pointer. This is done this way to avoid doing too
3117 * many mini-allocations (particularly for the MonoFieldType which
3118 * most of the time is just a MonoType, but sometimes might be augmented).
3120 * This routine is used by mono_metadata_parse_type and
3121 * mono_metadata_parse_field_type
3123 * This extracts a Type as specified in Partition II (22.2.12)
3125 * Returns: FALSE if the type could not be loaded
3128 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3129 gboolean transient, const char *ptr, const char **rptr)
3132 type->type = mono_metadata_decode_value (ptr, &ptr);
3134 switch (type->type){
3135 case MONO_TYPE_VOID:
3136 case MONO_TYPE_BOOLEAN:
3137 case MONO_TYPE_CHAR:
3150 case MONO_TYPE_STRING:
3151 case MONO_TYPE_OBJECT:
3152 case MONO_TYPE_TYPEDBYREF:
3154 case MONO_TYPE_VALUETYPE:
3155 case MONO_TYPE_CLASS: {
3157 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3158 type->data.klass = mono_class_get (m, token);
3159 if (!type->data.klass)
3163 case MONO_TYPE_SZARRAY: {
3164 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
3167 type->data.klass = mono_class_from_mono_type (etype);
3168 if (!type->data.klass)
3173 type->data.type = mono_metadata_parse_type_internal (m, container, MONO_PARSE_MOD_TYPE, 0, transient, ptr, &ptr);
3174 if (!type->data.type)
3177 case MONO_TYPE_FNPTR:
3178 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
3179 if (!type->data.method)
3182 case MONO_TYPE_ARRAY:
3183 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr);
3184 if (!type->data.array)
3187 case MONO_TYPE_MVAR:
3188 if (container && !container->is_method)
3191 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
3192 if (!type->data.generic_param)
3195 case MONO_TYPE_GENERICINST:
3196 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
3199 g_warning ("type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3209 * mono_metadata_free_type:
3210 * @type: type to free
3212 * Free the memory allocated for type @type which is allocated on the heap.
3215 mono_metadata_free_type (MonoType *type)
3217 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3220 switch (type->type){
3221 case MONO_TYPE_OBJECT:
3222 case MONO_TYPE_STRING:
3223 if (!type->data.klass)
3226 case MONO_TYPE_CLASS:
3227 case MONO_TYPE_VALUETYPE:
3228 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3232 mono_metadata_free_type (type->data.type);
3234 case MONO_TYPE_FNPTR:
3235 mono_metadata_free_method_signature (type->data.method);
3237 case MONO_TYPE_ARRAY:
3238 mono_metadata_free_array (type->data.array);
3247 hex_dump (const char *buffer, int base, int count)
3249 int show_header = 1;
3257 for (i = 0; i < count; i++){
3260 printf ("\n0x%08x: ", (unsigned char) base + i);
3262 printf ("%02x ", (unsigned char) (buffer [i]));
3269 * @ptr: Points to the beginning of the Section Data (25.3)
3271 static MonoExceptionClause*
3272 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3274 unsigned char sect_data_flags;
3275 const unsigned char *sptr;
3277 guint32 sect_data_len;
3278 MonoExceptionClause* clauses = NULL;
3281 /* align on 32-bit boundary */
3282 sptr = ptr = dword_align (ptr);
3283 sect_data_flags = *ptr;
3286 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3288 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3291 sect_data_len = ptr [0];
3295 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
3296 hex_dump (sptr, 0, sect_data_len+8);
3297 g_print ("\nheader: ");
3298 hex_dump (sptr-4, 0, 4);
3302 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3303 const unsigned char *p = dword_align (ptr);
3305 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3306 /* we could just store a pointer if we don't need to byteswap */
3307 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3308 for (i = 0; i < *num_clauses; ++i) {
3309 MonoExceptionClause *ec = &clauses [i];
3312 ec->flags = read32 (p);
3313 ec->try_offset = read32 (p + 4);
3314 ec->try_len = read32 (p + 8);
3315 ec->handler_offset = read32 (p + 12);
3316 ec->handler_len = read32 (p + 16);
3317 tof_value = read32 (p + 20);
3320 ec->flags = read16 (p);
3321 ec->try_offset = read16 (p + 2);
3322 ec->try_len = *(p + 4);
3323 ec->handler_offset = read16 (p + 5);
3324 ec->handler_len = *(p + 7);
3325 tof_value = read32 (p + 8);
3328 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3329 ec->data.filter_offset = tof_value;
3330 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3331 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
3333 ec->data.catch_class = NULL;
3335 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3339 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3340 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3347 * mono_method_get_header_summary:
3348 * @method: The method to get the header.
3349 * @summary: Where to store the header
3352 * Returns: true if the header was properly decoded.
3355 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3361 unsigned char flags, format;
3364 /*Only the GMD has a pointer to the metadata.*/
3365 while (method->is_inflated)
3366 method = ((MonoMethodInflated*)method)->declaring;
3368 summary->code_size = 0;
3369 summary->has_clauses = FALSE;
3371 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3372 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))
3375 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3376 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3379 summary->code_size = header->code_size;
3380 summary->has_clauses = header->num_clauses > 0;
3385 idx = mono_metadata_token_index (method->token);
3386 img = method->klass->image;
3387 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3389 /*We must run the verifier since we'll be decoding it.*/
3390 if (!mono_verifier_verify_method_header (img, rva, NULL))
3393 ptr = mono_image_rva_map (img, rva);
3396 flags = *(const unsigned char *)ptr;
3397 format = flags & METHOD_HEADER_FORMAT_MASK;
3400 case METHOD_HEADER_TINY_FORMAT:
3402 summary->code_size = flags >> 2;
3404 case METHOD_HEADER_FAT_FORMAT:
3405 fat_flags = read16 (ptr);
3407 summary->code_size = read32 (ptr);
3408 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3409 summary->has_clauses = TRUE;
3418 * mono_metadata_parse_mh_full:
3419 * @m: metadata context
3420 * @generic_context: generics context
3421 * @ptr: pointer to the method header.
3423 * Decode the method header at @ptr, including pointer to the IL code,
3424 * info about local variables and optional exception tables.
3425 * This is a Mono runtime internal function.
3427 * LOCKING: Acquires the loader lock.
3429 * Returns: a transient MonoMethodHeader allocated from the heap.
3432 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3434 MonoMethodHeader *mh;
3435 unsigned char flags = *(const unsigned char *) ptr;
3436 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3438 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3439 const unsigned char *code;
3440 MonoExceptionClause* clauses = NULL;
3441 int hsize, num_clauses = 0;
3442 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3443 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3445 g_return_val_if_fail (ptr != NULL, NULL);
3448 case METHOD_HEADER_TINY_FORMAT:
3449 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3452 mh->is_transient = TRUE;
3453 local_var_sig_tok = 0;
3454 mh->code_size = flags >> 2;
3455 mh->code = (unsigned char*)ptr;
3457 case METHOD_HEADER_FAT_FORMAT:
3458 fat_flags = read16 (ptr);
3460 hsize = (fat_flags >> 12) & 0xf;
3461 max_stack = read16 (ptr);
3463 code_size = read32 (ptr);
3465 local_var_sig_tok = read32 (ptr);
3468 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3473 code = (unsigned char*)ptr;
3475 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3479 * There are more sections
3481 ptr = (char*)code + code_size;
3487 if (local_var_sig_tok) {
3488 int idx = (local_var_sig_tok & 0xffffff)-1;
3491 mono_metadata_decode_row (t, idx, cols, 1);
3493 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3496 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3497 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3498 if (local_var_sig_tok) {
3499 const char *locals_ptr;
3500 int len=0, i, bsize;
3502 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3503 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3504 if (*locals_ptr != 0x07)
3505 g_warning ("wrong signature for locals blob");
3507 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3508 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3509 mh->num_locals = len;
3510 for (i = 0; i < len; ++i) {
3511 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3512 MONO_PARSE_LOCAL, 0, TRUE, locals_ptr, &locals_ptr);
3513 if (!mh->locals [i]) {
3520 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3523 mh->code_size = code_size;
3524 mh->max_stack = max_stack;
3525 mh->is_transient = TRUE;
3526 mh->init_locals = init_locals;
3528 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3529 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3531 mh->clauses = clausesp;
3532 mh->num_clauses = num_clauses;
3538 * mono_metadata_parse_mh:
3539 * @generic_context: generics context
3540 * @ptr: pointer to the method header.
3542 * Decode the method header at @ptr, including pointer to the IL code,
3543 * info about local variables and optional exception tables.
3544 * This is a Mono runtime internal function.
3546 * Returns: a MonoMethodHeader.
3549 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3551 MonoMethodHeader *res;
3553 mono_loader_lock ();
3555 res = mono_metadata_parse_mh_full (m, NULL, ptr);
3557 mono_loader_unlock ();
3563 * mono_metadata_free_mh:
3564 * @mh: a method header
3566 * Free the memory allocated for the method header.
3569 mono_metadata_free_mh (MonoMethodHeader *mh)
3573 /* If it is not transient it means it's part of a wrapper method,
3574 * or a SRE-generated method, so the lifetime in that case is
3575 * dictated by the method's own lifetime
3577 if (mh->is_transient) {
3578 for (i = 0; i < mh->num_locals; ++i)
3579 mono_metadata_free_type (mh->locals [i]);
3585 * mono_method_header_get_code:
3586 * @header: a MonoMethodHeader pointer
3587 * @code_size: memory location for returning the code size
3588 * @max_stack: memory location for returning the max stack
3590 * Method header accessor to retreive info about the IL code properties:
3591 * a pointer to the IL code itself, the size of the code and the max number
3592 * of stack slots used by the code.
3594 * Returns: pointer to the IL code represented by the method header.
3596 const unsigned char*
3597 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3600 *code_size = header->code_size;
3602 *max_stack = header->max_stack;
3603 return header->code;
3607 * mono_method_header_get_locals:
3608 * @header: a MonoMethodHeader pointer
3609 * @num_locals: memory location for returning the number of local variables
3610 * @init_locals: memory location for returning the init_locals flag
3612 * Method header accessor to retreive info about the local variables:
3613 * an array of local types, the number of locals and whether the locals
3614 * are supposed to be initialized to 0 on method entry
3616 * Returns: pointer to an array of types of the local variables
3619 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3622 *num_locals = header->num_locals;
3624 *init_locals = header->init_locals;
3625 return header->locals;
3629 * mono_method_header_get_num_clauses:
3630 * @header: a MonoMethodHeader pointer
3632 * Method header accessor to retreive the number of exception clauses.
3634 * Returns: the number of exception clauses present
3637 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3639 return header->num_clauses;
3643 * mono_method_header_get_clauses:
3644 * @header: a MonoMethodHeader pointer
3645 * @method: MonoMethod the header belongs to
3646 * @iter: pointer to a iterator
3647 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3649 * Get the info about the exception clauses in the method. Set *iter to NULL to
3650 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3651 * At each iteration, the structure pointed to by clause if filled with the
3652 * exception clause information.
3654 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3658 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3660 MonoExceptionClause *sc;
3661 /* later we'll be able to use this interface to parse the clause info on demand,
3662 * without allocating anything.
3664 if (!iter || !header->num_clauses)
3667 *iter = sc = header->clauses;
3673 if (sc < header->clauses + header->num_clauses) {
3682 * mono_metadata_parse_field_type:
3683 * @m: metadata context to extract information from
3684 * @ptr: pointer to the field signature
3685 * @rptr: pointer updated to match the end of the decoded stream
3687 * Parses the field signature, and returns the type information for it.
3689 * Returns: The MonoType that was extracted from @ptr.
3692 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3694 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3698 * mono_metadata_parse_param:
3699 * @m: metadata context to extract information from
3700 * @ptr: pointer to the param signature
3701 * @rptr: pointer updated to match the end of the decoded stream
3703 * Parses the param signature, and returns the type information for it.
3705 * Returns: The MonoType that was extracted from @ptr.
3708 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3710 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3714 * mono_metadata_token_from_dor:
3715 * @dor_token: A TypeDefOrRef coded index
3717 * dor_token is a TypeDefOrRef coded index: it contains either
3718 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3719 * bits contain an index into the table.
3721 * Returns: an expanded token
3724 mono_metadata_token_from_dor (guint32 dor_index)
3728 table = dor_index & 0x03;
3729 idx = dor_index >> 2;
3732 case 0: /* TypeDef */
3733 return MONO_TOKEN_TYPE_DEF | idx;
3734 case 1: /* TypeRef */
3735 return MONO_TOKEN_TYPE_REF | idx;
3736 case 2: /* TypeSpec */
3737 return MONO_TOKEN_TYPE_SPEC | idx;
3739 g_assert_not_reached ();
3746 * We use this to pass context information to the row locator
3749 int idx; /* The index that we are trying to locate */
3750 int col_idx; /* The index in the row where idx may be stored */
3751 MonoTableInfo *t; /* pointer to the table */
3756 * How the row locator works.
3761 * ___|___------> _______
3764 * A column in the rows of table A references an index in table B.
3765 * For example A may be the TYPEDEF table and B the METHODDEF table.
3767 * Given an index in table B we want to get the row in table A
3768 * where the column n references our index in B.
3770 * In the locator_t structure:
3772 * col_idx is the column number
3773 * index is the index in table B
3774 * result will be the index in table A
3777 * Table A Table B column (in table A)
3778 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3779 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3780 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3781 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3782 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3784 * Note that we still don't support encoded indexes.
3788 typedef_locator (const void *a, const void *b)
3790 locator_t *loc = (locator_t *) a;
3791 const char *bb = (const char *) b;
3792 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3793 guint32 col, col_next;
3795 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3801 * Need to check that the next row is valid.
3803 if (typedef_index + 1 < loc->t->rows) {
3804 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3805 if (loc->idx >= col_next)
3808 if (col == col_next)
3812 loc->result = typedef_index;
3818 table_locator (const void *a, const void *b)
3820 locator_t *loc = (locator_t *) a;
3821 const char *bb = (const char *) b;
3822 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3825 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3827 if (loc->idx == col) {
3828 loc->result = table_index;
3838 declsec_locator (const void *a, const void *b)
3840 locator_t *loc = (locator_t *) a;
3841 const char *bb = (const char *) b;
3842 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3845 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3847 if (loc->idx == col) {
3848 loc->result = table_index;
3860 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3861 * which contains IDX.
3864 search_ptr_table (MonoImage *image, int table, int idx)
3866 MonoTableInfo *ptrdef = &image->tables [table];
3869 /* Use a linear search to find our index in the table */
3870 for (i = 0; i < ptrdef->rows; i ++)
3871 /* All the Ptr tables have the same structure */
3872 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3875 if (i < ptrdef->rows)
3882 * mono_metadata_typedef_from_field:
3883 * @meta: metadata context
3884 * @index: FieldDef token
3886 * Returns: the 1-based index into the TypeDef table of the type that
3887 * declared the field described by @index, or 0 if not found.
3890 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3892 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3898 loc.idx = mono_metadata_token_index (index);
3899 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3902 if (meta->uncompressed_metadata)
3903 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3905 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3908 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3909 return loc.result + 1;
3913 * mono_metadata_typedef_from_method:
3914 * @meta: metadata context
3915 * @index: MethodDef token
3917 * Returns: the 1-based index into the TypeDef table of the type that
3918 * declared the method described by @index. 0 if not found.
3921 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3923 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3929 loc.idx = mono_metadata_token_index (index);
3930 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3933 if (meta->uncompressed_metadata)
3934 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3936 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3939 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3940 return loc.result + 1;
3944 * mono_metadata_interfaces_from_typedef_full:
3945 * @meta: metadata context
3946 * @index: typedef token
3947 * @interfaces: Out parameter used to store the interface array
3948 * @count: Out parameter used to store the number of interfaces
3949 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
3950 * @context: The generic context
3952 * The array of interfaces that the @index typedef token implements is returned in
3953 * @interfaces. The number of elements in the array is returned in @count.
3955 * LOCKING: Assumes the loader lock is held.
3957 * Returns: TRUE on success, FALSE on failure.
3960 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context)
3962 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3965 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3974 loc.idx = mono_metadata_token_index (index);
3975 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3978 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3983 * We may end up in the middle of the rows...
3986 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
3992 while (pos < tdef->rows) {
3993 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
3994 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
3999 if (heap_alloc_result)
4000 result = g_new0 (MonoClass*, pos - start);
4002 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4005 while (pos < tdef->rows) {
4008 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4009 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4011 iface = mono_class_get_full (
4012 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
4015 result [pos - start] = iface;
4018 *count = pos - start;
4019 *interfaces = result;
4024 * @meta: metadata context
4025 * @index: typedef token
4026 * @count: Out parameter used to store the number of interfaces
4028 * The array of interfaces that the @index typedef token implements is returned in
4029 * @interfaces. The number of elements in the array is returned in @count. The returned
4030 * array is g_malloc'd and the caller must free it.
4032 * LOCKING: Acquires the loader lock .
4034 * Returns: the interface array on success, NULL on failure.
4038 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4040 MonoClass **interfaces;
4043 mono_loader_lock ();
4044 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL);
4045 mono_loader_unlock ();
4053 * mono_metadata_nested_in_typedef:
4054 * @meta: metadata context
4055 * @index: typedef token
4057 * Returns: the 1-based index into the TypeDef table of the type
4058 * where the type described by @index is nested.
4059 * Retruns 0 if @index describes a non-nested type.
4062 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4064 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4070 loc.idx = mono_metadata_token_index (index);
4071 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4074 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4077 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4078 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4082 * mono_metadata_nesting_typedef:
4083 * @meta: metadata context
4084 * @index: typedef token
4086 * Returns: the 1-based index into the TypeDef table of the first type
4087 * that is nested inside the type described by @index. The search starts at
4088 * @start_index. returns 0 if no such type is found.
4091 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4093 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4095 guint32 class_index = mono_metadata_token_index (index);
4100 start = start_index;
4102 while (start <= tdef->rows) {
4103 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4109 if (start > tdef->rows)
4116 * mono_metadata_packing_from_typedef:
4117 * @meta: metadata context
4118 * @index: token representing a type
4120 * Returns: the info stored in the ClassLAyout table for the given typedef token
4121 * into the @packing and @size pointers.
4122 * Returns 0 if the info is not found.
4125 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4127 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4129 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4134 loc.idx = mono_metadata_token_index (index);
4135 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4138 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4141 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4143 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4145 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4147 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4148 return loc.result + 1;
4152 * mono_metadata_custom_attrs_from_index:
4153 * @meta: metadata context
4154 * @index: token representing the parent
4156 * Returns: the 1-based index into the CustomAttribute table of the first
4157 * attribute which belongs to the metadata object described by @index.
4158 * Returns 0 if no such attribute is found.
4161 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4163 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4170 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4173 /* FIXME: Index translation */
4175 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4178 /* Find the first entry by searching backwards */
4179 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4182 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4183 return loc.result + 1;
4187 * mono_metadata_declsec_from_index:
4188 * @meta: metadata context
4189 * @index: token representing the parent
4191 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4192 * attribute which belongs to the metadata object described by @index.
4193 * Returns -1 if no such attribute is found.
4196 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4198 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4205 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4208 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4211 /* Find the first entry by searching backwards */
4212 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4220 mono_backtrace (int limit)
4225 backtrace (array, limit);
4226 names = backtrace_symbols (array, limit);
4227 for (i =0; i < limit; ++i) {
4228 g_print ("\t%s\n", names [i]);
4235 /*#define __alignof__(a) sizeof(a)*/
4236 #define __alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
4241 * @t: the type to return the size of
4243 * Returns: the number of bytes required to hold an instance of this
4247 mono_type_size (MonoType *t, int *align)
4254 *align = __alignof__(gpointer);
4255 return sizeof (gpointer);
4259 case MONO_TYPE_VOID:
4262 case MONO_TYPE_BOOLEAN:
4263 *align = __alignof__(gint8);
4267 *align = __alignof__(gint8);
4269 case MONO_TYPE_CHAR:
4272 *align = __alignof__(gint16);
4276 *align = __alignof__(gint32);
4279 *align = __alignof__(float);
4283 *align = __alignof__(gint64);
4286 *align = __alignof__(double);
4290 *align = __alignof__(gpointer);
4291 return sizeof (gpointer);
4292 case MONO_TYPE_STRING:
4293 *align = __alignof__(gpointer);
4294 return sizeof (gpointer);
4295 case MONO_TYPE_OBJECT:
4296 *align = __alignof__(gpointer);
4297 return sizeof (gpointer);
4298 case MONO_TYPE_VALUETYPE: {
4299 if (t->data.klass->enumtype)
4300 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4302 return mono_class_value_size (t->data.klass, (guint32*)align);
4304 case MONO_TYPE_CLASS:
4305 case MONO_TYPE_SZARRAY:
4307 case MONO_TYPE_FNPTR:
4308 case MONO_TYPE_ARRAY:
4309 *align = __alignof__(gpointer);
4310 return sizeof (gpointer);
4311 case MONO_TYPE_TYPEDBYREF:
4312 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4313 case MONO_TYPE_GENERICINST: {
4314 MonoGenericClass *gclass = t->data.generic_class;
4315 MonoClass *container_class = gclass->container_class;
4317 // g_assert (!gclass->inst->is_open);
4319 if (container_class->valuetype) {
4320 if (container_class->enumtype)
4321 return mono_type_size (mono_class_enum_basetype (container_class), align);
4323 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4325 *align = __alignof__(gpointer);
4326 return sizeof (gpointer);
4330 case MONO_TYPE_MVAR:
4331 /* FIXME: Martin, this is wrong. */
4332 *align = __alignof__(gpointer);
4333 return sizeof (gpointer);
4335 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4341 * mono_type_stack_size:
4342 * @t: the type to return the size it uses on the stack
4344 * Returns: the number of bytes required to hold an instance of this
4345 * type on the runtime stack
4348 mono_type_stack_size (MonoType *t, int *align)
4350 return mono_type_stack_size_internal (t, align, FALSE);
4354 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4357 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4358 int stack_slot_size = sizeof (gpointer);
4359 int stack_slot_align = __alignof__ (gpointer);
4360 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4361 int stack_slot_size = SIZEOF_REGISTER;
4362 int stack_slot_align = SIZEOF_REGISTER;
4365 g_assert (t != NULL);
4371 *align = stack_slot_align;
4372 return stack_slot_size;
4376 case MONO_TYPE_BOOLEAN:
4377 case MONO_TYPE_CHAR:
4386 case MONO_TYPE_STRING:
4387 case MONO_TYPE_OBJECT:
4388 case MONO_TYPE_CLASS:
4389 case MONO_TYPE_SZARRAY:
4391 case MONO_TYPE_FNPTR:
4392 case MONO_TYPE_ARRAY:
4393 *align = stack_slot_align;
4394 return stack_slot_size;
4396 case MONO_TYPE_MVAR:
4397 g_assert (allow_open);
4398 *align = stack_slot_align;
4399 return stack_slot_size;
4400 case MONO_TYPE_TYPEDBYREF:
4401 *align = stack_slot_align;
4402 return stack_slot_size * 3;
4404 *align = __alignof__(float);
4405 return sizeof (float);
4408 *align = __alignof__(gint64);
4409 return sizeof (gint64);
4411 *align = __alignof__(double);
4412 return sizeof (double);
4413 case MONO_TYPE_VALUETYPE: {
4416 if (t->data.klass->enumtype)
4417 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4419 size = mono_class_value_size (t->data.klass, (guint32*)align);
4421 *align = *align + stack_slot_align - 1;
4422 *align &= ~(stack_slot_align - 1);
4424 size += stack_slot_size - 1;
4425 size &= ~(stack_slot_size - 1);
4430 case MONO_TYPE_GENERICINST: {
4431 MonoGenericClass *gclass = t->data.generic_class;
4432 MonoClass *container_class = gclass->container_class;
4435 g_assert (!gclass->context.class_inst->is_open);
4437 if (container_class->valuetype) {
4438 if (container_class->enumtype)
4439 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4441 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4443 *align = *align + stack_slot_align - 1;
4444 *align &= ~(stack_slot_align - 1);
4446 size += stack_slot_size - 1;
4447 size &= ~(stack_slot_size - 1);
4452 *align = stack_slot_align;
4453 return stack_slot_size;
4457 g_error ("type 0x%02x unknown", t->type);
4463 mono_type_generic_inst_is_valuetype (MonoType *type)
4465 g_assert (type->type == MONO_TYPE_GENERICINST);
4466 return type->data.generic_class->container_class->valuetype;
4470 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4472 return gclass->container_class->valuetype;
4476 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4478 MonoGenericInst *i1 = g1->context.class_inst;
4479 MonoGenericInst *i2 = g2->context.class_inst;
4481 if (g1->is_dynamic != g2->is_dynamic)
4483 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4485 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4487 return g1->is_tb_open == g2->is_tb_open;
4491 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4493 MonoGenericInst *i1 = g1->context.class_inst;
4494 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4496 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4498 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4500 return !g1->is_tb_open;
4504 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4506 /* FIXME: check if this seed is good enough */
4507 guint hash = 0xc01dfee7;
4508 if (context->class_inst)
4509 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4510 if (context->method_inst)
4511 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4516 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4518 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4522 * mono_metadata_str_hash:
4524 * This should be used instead of g_str_hash for computing hash codes visible
4525 * outside this module, since g_str_hash () is not guaranteed to be stable
4526 * (its not the same in eglib for example).
4529 mono_metadata_str_hash (gconstpointer v1)
4531 /* Same as g_str_hash () in glib */
4532 char *p = (char *) v1;
4537 hash = (hash << 5) - hash + *p;
4544 * mono_metadata_type_hash:
4547 * Computes an hash value for @t1 to be used in GHashTable.
4548 * The returned hash is guaranteed to be the same across executions.
4551 mono_metadata_type_hash (MonoType *t1)
4553 guint hash = t1->type;
4555 hash |= t1->byref << 6; /* do not collide with t1->type values */
4557 case MONO_TYPE_VALUETYPE:
4558 case MONO_TYPE_CLASS:
4559 case MONO_TYPE_SZARRAY: {
4560 MonoClass *class = t1->data.klass;
4562 * Dynamic classes must not be hashed on their type since it can change
4563 * during runtime. For example, if we hash a reference type that is
4564 * later made into a valuetype.
4566 * This is specially problematic with generic instances since they are
4567 * inserted in a bunch of hash tables before been finished.
4569 if (class->image->dynamic)
4570 return (t1->byref << 6) | mono_metadata_str_hash (class->name);
4571 return ((hash << 5) - hash) ^ mono_metadata_str_hash (class->name);
4574 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4575 case MONO_TYPE_ARRAY:
4576 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4577 case MONO_TYPE_GENERICINST:
4578 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4584 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4588 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4592 * We have to compare the image as well because if we didn't,
4593 * the generic_inst_cache lookup wouldn't care about the image
4594 * of generic params, so what could happen is that a generic
4595 * inst with params from image A is put into the cache, then
4596 * image B gets that generic inst from the cache, image A is
4597 * unloaded, so the inst is deleted, but image B still retains
4600 * The AOT runtime doesn't set the image when it's decoding
4601 * types, so we only compare it when the owner is NULL.
4603 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4604 (mono_generic_param_owner (p1) || p1->image == p2->image))
4608 * If `signature_only' is true, we're comparing two (method) signatures.
4609 * In this case, the owner of two type parameters doesn't need to match.
4612 return signature_only;
4616 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4620 if (c1->generic_class && c2->generic_class)
4621 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4622 if (c1->generic_class && c2->generic_container)
4623 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4624 if (c1->generic_container && c2->generic_class)
4625 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4626 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4627 return mono_metadata_generic_param_equal (
4628 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4629 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4630 return mono_metadata_generic_param_equal (
4631 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4632 if (signature_only &&
4633 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4634 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4639 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4641 gpointer iter1 = 0, iter2 = 0;
4645 if (s1->call_convention != s2->call_convention)
4647 if (s1->sentinelpos != s2->sentinelpos)
4649 if (s1->hasthis != s2->hasthis)
4651 if (s1->explicit_this != s2->explicit_this)
4653 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4655 if (s1->param_count != s2->param_count)
4659 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4660 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4662 if (t1 == NULL || t2 == NULL)
4664 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4670 * mono_metadata_type_equal:
4674 * Determine if @t1 and @t2 represent the same type.
4675 * Returns: #TRUE if @t1 and @t2 are equal.
4678 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4680 if (t1->type != t2->type || t1->byref != t2->byref)
4684 case MONO_TYPE_VOID:
4685 case MONO_TYPE_BOOLEAN:
4686 case MONO_TYPE_CHAR:
4697 case MONO_TYPE_STRING:
4700 case MONO_TYPE_OBJECT:
4701 case MONO_TYPE_TYPEDBYREF:
4703 case MONO_TYPE_VALUETYPE:
4704 case MONO_TYPE_CLASS:
4705 case MONO_TYPE_SZARRAY:
4706 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4708 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4709 case MONO_TYPE_ARRAY:
4710 if (t1->data.array->rank != t2->data.array->rank)
4712 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4713 case MONO_TYPE_GENERICINST:
4714 return _mono_metadata_generic_class_equal (
4715 t1->data.generic_class, t2->data.generic_class, signature_only);
4717 return mono_metadata_generic_param_equal (
4718 t1->data.generic_param, t2->data.generic_param, signature_only);
4719 case MONO_TYPE_MVAR:
4720 return mono_metadata_generic_param_equal (
4721 t1->data.generic_param, t2->data.generic_param, signature_only);
4722 case MONO_TYPE_FNPTR:
4723 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4725 g_error ("implement type compare for %0x!", t1->type);
4733 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
4735 return do_mono_metadata_type_equal (t1, t2, FALSE);
4739 * mono_metadata_type_equal_full:
4742 * @signature_only: if signature only comparison should be made
4744 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
4745 * behaves the same way as mono_metadata_type_equal.
4746 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
4747 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
4750 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
4752 return do_mono_metadata_type_equal (t1, t2, signature_only);
4756 * mono_metadata_signature_equal:
4757 * @sig1: a signature
4758 * @sig2: another signature
4760 * Determine if @sig1 and @sig2 represent the same signature, with the
4761 * same number of arguments and the same types.
4762 * Returns: #TRUE if @sig1 and @sig2 are equal.
4765 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4769 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4772 if (sig1->generic_param_count != sig2->generic_param_count)
4776 * We're just comparing the signatures of two methods here:
4778 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4779 * U and V are equal here.
4781 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4784 for (i = 0; i < sig1->param_count; i++) {
4785 MonoType *p1 = sig1->params[i];
4786 MonoType *p2 = sig2->params[i];
4788 /* if (p1->attrs != p2->attrs)
4791 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
4795 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4801 * mono_metadata_type_dup:
4802 * @image: image to alloc memory from
4803 * @original: type to duplicate
4805 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
4808 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
4811 int sizeof_o = MONO_SIZEOF_TYPE;
4813 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
4815 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
4817 memcpy (r, o, sizeof_o);
4819 if (o->type == MONO_TYPE_PTR) {
4820 r->data.type = mono_metadata_type_dup (image, o->data.type);
4821 } else if (o->type == MONO_TYPE_ARRAY) {
4822 r->data.array = mono_dup_array_type (image, o->data.array);
4823 } else if (o->type == MONO_TYPE_FNPTR) {
4824 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
4825 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
4831 mono_signature_hash (MonoMethodSignature *sig)
4833 guint i, res = sig->ret->type;
4835 for (i = 0; i < sig->param_count; i++)
4836 res = (res << 5) - res + mono_type_hash (sig->params[i]);
4842 * mono_metadata_encode_value:
4843 * @value: value to encode
4844 * @buf: buffer where to write the compressed representation
4845 * @endbuf: pointer updated to point at the end of the encoded output
4847 * Encodes the value @value in the compressed representation used
4848 * in metadata and stores the result in @buf. @buf needs to be big
4849 * enough to hold the data (4 bytes).
4852 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
4858 else if (value < 0x4000) {
4859 p [0] = 0x80 | (value >> 8);
4860 p [1] = value & 0xff;
4863 p [0] = (value >> 24) | 0xc0;
4864 p [1] = (value >> 16) & 0xff;
4865 p [2] = (value >> 8) & 0xff;
4866 p [3] = value & 0xff;
4874 * mono_metadata_field_info:
4875 * @meta: the Image the field is defined in
4876 * @index: the index in the field table representing the field
4877 * @offset: a pointer to an integer where to store the offset that
4878 * may have been specified for the field in a FieldLayout table
4879 * @rva: a pointer to the RVA of the field data in the image that
4880 * may have been defined in a FieldRVA table
4881 * @marshal_spec: a pointer to the marshal spec that may have been
4882 * defined for the field in a FieldMarshal table.
4884 * Gather info for field @index that may have been defined in the FieldLayout,
4885 * FieldRVA and FieldMarshal tables.
4886 * Either of offset, rva and marshal_spec can be NULL if you're not interested
4890 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4891 MonoMarshalSpec **marshal_spec)
4893 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
4897 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4898 MonoMarshalSpec **marshal_spec)
4900 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
4904 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4905 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
4907 MonoTableInfo *tdef;
4910 loc.idx = index + 1;
4911 if (meta->uncompressed_metadata)
4912 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4915 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
4917 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
4920 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4921 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
4923 *offset = (guint32)-1;
4927 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
4929 loc.col_idx = MONO_FIELD_RVA_FIELD;
4932 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4934 * LAMESPEC: There is no signature, no nothing, just the raw data.
4936 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
4944 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
4945 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, p);
4952 * mono_metadata_get_constant_index:
4953 * @meta: the Image the field is defined in
4954 * @index: the token that may have a row defined in the constants table
4955 * @hint: possible position for the row
4957 * @token must be a FieldDef, ParamDef or PropertyDef token.
4959 * Returns: the index into the Constants table or 0 if not found.
4962 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4964 MonoTableInfo *tdef;
4966 guint32 index = mono_metadata_token_index (token);
4968 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4969 index <<= MONO_HASCONSTANT_BITS;
4970 switch (mono_metadata_token_table (token)) {
4971 case MONO_TABLE_FIELD:
4972 index |= MONO_HASCONSTANT_FIEDDEF;
4974 case MONO_TABLE_PARAM:
4975 index |= MONO_HASCONSTANT_PARAM;
4977 case MONO_TABLE_PROPERTY:
4978 index |= MONO_HASCONSTANT_PROPERTY;
4981 g_warning ("Not a valid token for the constant table: 0x%08x", token);
4985 loc.col_idx = MONO_CONSTANT_PARENT;
4988 /* FIXME: Index translation */
4990 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
4993 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4994 return loc.result + 1;
5000 * mono_metadata_events_from_typedef:
5001 * @meta: metadata context
5002 * @index: 0-based index (in the TypeDef table) describing a type
5004 * Returns: the 0-based index in the Event table for the events in the
5005 * type. The last event that belongs to the type (plus 1) is stored
5006 * in the @end_idx pointer.
5009 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5013 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5021 loc.col_idx = MONO_EVENT_MAP_PARENT;
5022 loc.idx = index + 1;
5024 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5027 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5028 if (loc.result + 1 < tdef->rows) {
5029 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5031 end = meta->tables [MONO_TABLE_EVENT].rows;
5039 * mono_metadata_methods_from_event:
5040 * @meta: metadata context
5041 * @index: 0-based index (in the Event table) describing a event
5043 * Returns: the 0-based index in the MethodDef table for the methods in the
5044 * event. The last method that belongs to the event (plus 1) is stored
5045 * in the @end_idx pointer.
5048 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5052 guint32 cols [MONO_METHOD_SEMA_SIZE];
5053 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5059 if (meta->uncompressed_metadata)
5060 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5063 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5064 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5066 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5071 * We may end up in the middle of the rows...
5074 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5080 while (end < msemt->rows) {
5081 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5082 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5091 * mono_metadata_properties_from_typedef:
5092 * @meta: metadata context
5093 * @index: 0-based index (in the TypeDef table) describing a type
5095 * Returns: the 0-based index in the Property table for the properties in the
5096 * type. The last property that belongs to the type (plus 1) is stored
5097 * in the @end_idx pointer.
5100 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5104 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5112 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5113 loc.idx = index + 1;
5115 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5118 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5119 if (loc.result + 1 < tdef->rows) {
5120 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5122 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5130 * mono_metadata_methods_from_property:
5131 * @meta: metadata context
5132 * @index: 0-based index (in the PropertyDef table) describing a property
5134 * Returns: the 0-based index in the MethodDef table for the methods in the
5135 * property. The last method that belongs to the property (plus 1) is stored
5136 * in the @end_idx pointer.
5139 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5143 guint32 cols [MONO_METHOD_SEMA_SIZE];
5144 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5150 if (meta->uncompressed_metadata)
5151 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5154 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5155 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5157 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5162 * We may end up in the middle of the rows...
5165 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5171 while (end < msemt->rows) {
5172 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5173 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5182 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5185 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5190 /* No index translation seems to be needed */
5193 loc.col_idx = MONO_IMPLMAP_MEMBER;
5194 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5196 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5199 return loc.result + 1;
5203 * @image: context where the image is created
5204 * @type_spec: typespec token
5206 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5210 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5212 guint32 idx = mono_metadata_token_index (type_spec);
5214 guint32 cols [MONO_TYPESPEC_SIZE];
5217 MonoType *type, *type2;
5218 MonoType stack_type;
5220 mono_loader_lock ();
5222 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5224 mono_loader_unlock ();
5228 t = &image->tables [MONO_TABLE_TYPESPEC];
5230 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5231 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5233 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5234 mono_loader_unlock ();
5238 len = mono_metadata_decode_value (ptr, &ptr);
5241 memset (type, 0, MONO_SIZEOF_TYPE);
5243 if (*ptr == MONO_TYPE_BYREF) {
5248 if (!do_mono_metadata_parse_type (type, image, NULL, FALSE, ptr, &ptr)) {
5249 mono_loader_unlock ();
5253 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5256 mono_loader_unlock ();
5260 type2 = mono_image_alloc (image, MONO_SIZEOF_TYPE);
5261 memcpy (type2, type, MONO_SIZEOF_TYPE);
5262 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5264 mono_loader_unlock ();
5271 mono_image_strndup (MonoImage *image, const char *data, guint len)
5275 return g_strndup (data, len);
5276 res = mono_image_alloc (image, len + 1);
5277 memcpy (res, data, len);
5283 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5285 return mono_metadata_parse_marshal_spec_full (NULL, ptr);
5289 mono_metadata_parse_marshal_spec_full (MonoImage *image, const char *ptr)
5291 MonoMarshalSpec *res;
5293 const char *start = ptr;
5295 /* fixme: this is incomplete, but I cant find more infos in the specs */
5298 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5300 res = g_new0 (MonoMarshalSpec, 1);
5302 len = mono_metadata_decode_value (ptr, &ptr);
5303 res->native = *ptr++;
5305 if (res->native == MONO_NATIVE_LPARRAY) {
5306 res->data.array_data.param_num = -1;
5307 res->data.array_data.num_elem = -1;
5308 res->data.array_data.elem_mult = -1;
5310 if (ptr - start <= len)
5311 res->data.array_data.elem_type = *ptr++;
5312 if (ptr - start <= len)
5313 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5314 if (ptr - start <= len)
5315 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5316 if (ptr - start <= len) {
5318 * LAMESPEC: Older spec versions say this parameter comes before
5319 * num_elem. Never spec versions don't talk about elem_mult at
5320 * all, but csc still emits it, and it is used to distinguish
5321 * between param_num being 0, and param_num being omitted.
5322 * So if (param_num == 0) && (num_elem > 0), then
5323 * elem_mult == 0 -> the array size is num_elem
5324 * elem_mult == 1 -> the array size is @param_num + num_elem
5326 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5330 if (res->native == MONO_NATIVE_BYVALTSTR) {
5331 if (ptr - start <= len)
5332 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5335 if (res->native == MONO_NATIVE_BYVALARRAY) {
5336 if (ptr - start <= len)
5337 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5340 if (res->native == MONO_NATIVE_CUSTOM) {
5341 /* skip unused type guid */
5342 len = mono_metadata_decode_value (ptr, &ptr);
5344 /* skip unused native type name */
5345 len = mono_metadata_decode_value (ptr, &ptr);
5347 /* read custom marshaler type name */
5348 len = mono_metadata_decode_value (ptr, &ptr);
5349 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5351 /* read cookie string */
5352 len = mono_metadata_decode_value (ptr, &ptr);
5353 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5356 if (res->native == MONO_NATIVE_SAFEARRAY) {
5357 res->data.safearray_data.elem_type = 0;
5358 res->data.safearray_data.num_elem = 0;
5359 if (ptr - start <= len)
5360 res->data.safearray_data.elem_type = *ptr++;
5361 if (ptr - start <= len)
5362 res->data.safearray_data.num_elem = *ptr++;
5368 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5370 if (spec->native == MONO_NATIVE_CUSTOM) {
5371 g_free (spec->data.custom_data.custom_name);
5372 g_free (spec->data.custom_data.cookie);
5378 * mono_type_to_unmanaged:
5380 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5381 * describing the underlying native reprensetation of the type.
5383 * In addition the value pointed by
5384 * "conv" will contain the kind of marshalling required for this
5385 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5388 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5389 gboolean unicode, MonoMarshalConv *conv)
5391 MonoMarshalConv dummy_conv;
5397 *conv = MONO_MARSHAL_CONV_NONE;
5400 return MONO_NATIVE_UINT;
5404 case MONO_TYPE_BOOLEAN:
5406 switch (mspec->native) {
5407 case MONO_NATIVE_VARIANTBOOL:
5408 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5409 return MONO_NATIVE_VARIANTBOOL;
5410 case MONO_NATIVE_BOOLEAN:
5411 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5412 return MONO_NATIVE_BOOLEAN;
5413 case MONO_NATIVE_I1:
5414 case MONO_NATIVE_U1:
5415 return mspec->native;
5417 g_error ("cant marshal bool to native type %02x", mspec->native);
5420 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5421 return MONO_NATIVE_BOOLEAN;
5422 case MONO_TYPE_CHAR: return MONO_NATIVE_U2;
5423 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5424 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5425 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5426 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5427 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5428 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5429 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5430 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5431 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5432 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5433 case MONO_TYPE_STRING:
5435 switch (mspec->native) {
5436 case MONO_NATIVE_BSTR:
5437 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5438 return MONO_NATIVE_BSTR;
5439 case MONO_NATIVE_LPSTR:
5440 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5441 return MONO_NATIVE_LPSTR;
5442 case MONO_NATIVE_LPWSTR:
5443 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5444 return MONO_NATIVE_LPWSTR;
5445 case MONO_NATIVE_LPTSTR:
5446 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5447 return MONO_NATIVE_LPTSTR;
5448 case MONO_NATIVE_ANSIBSTR:
5449 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5450 return MONO_NATIVE_ANSIBSTR;
5451 case MONO_NATIVE_TBSTR:
5452 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5453 return MONO_NATIVE_TBSTR;
5454 case MONO_NATIVE_BYVALTSTR:
5456 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5458 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5459 return MONO_NATIVE_BYVALTSTR;
5461 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);
5465 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5466 return MONO_NATIVE_LPWSTR;
5469 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5470 return MONO_NATIVE_LPSTR;
5472 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5473 case MONO_TYPE_VALUETYPE: /*FIXME*/
5474 if (type->data.klass->enumtype) {
5475 t = mono_class_enum_basetype (type->data.klass)->type;
5478 if (type->data.klass == mono_defaults.handleref_class){
5479 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5480 return MONO_NATIVE_INT;
5482 return MONO_NATIVE_STRUCT;
5483 case MONO_TYPE_SZARRAY:
5484 case MONO_TYPE_ARRAY:
5486 switch (mspec->native) {
5487 case MONO_NATIVE_BYVALARRAY:
5488 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5489 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5491 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5492 return MONO_NATIVE_BYVALARRAY;
5493 case MONO_NATIVE_SAFEARRAY:
5494 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5495 return MONO_NATIVE_SAFEARRAY;
5496 case MONO_NATIVE_LPARRAY:
5497 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5498 return MONO_NATIVE_LPARRAY;
5500 g_error ("cant marshal array as native type %02x", mspec->native);
5504 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5505 return MONO_NATIVE_LPARRAY;
5506 case MONO_TYPE_I: return MONO_NATIVE_INT;
5507 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5508 case MONO_TYPE_CLASS:
5509 case MONO_TYPE_OBJECT: {
5510 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5512 switch (mspec->native) {
5513 case MONO_NATIVE_STRUCT:
5514 return MONO_NATIVE_STRUCT;
5515 case MONO_NATIVE_CUSTOM:
5516 return MONO_NATIVE_CUSTOM;
5517 case MONO_NATIVE_INTERFACE:
5518 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5519 return MONO_NATIVE_INTERFACE;
5520 case MONO_NATIVE_IDISPATCH:
5521 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5522 return MONO_NATIVE_IDISPATCH;
5523 case MONO_NATIVE_IUNKNOWN:
5524 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5525 return MONO_NATIVE_IUNKNOWN;
5526 case MONO_NATIVE_FUNC:
5527 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5528 type->data.klass == mono_defaults.delegate_class ||
5529 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5530 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5531 return MONO_NATIVE_FUNC;
5535 g_error ("cant marshal object as native type %02x", mspec->native);
5538 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5539 type->data.klass == mono_defaults.delegate_class ||
5540 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5541 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5542 return MONO_NATIVE_FUNC;
5544 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5545 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5546 return MONO_NATIVE_INT;
5548 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5549 return MONO_NATIVE_STRUCT;
5551 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5552 case MONO_TYPE_GENERICINST:
5553 type = &type->data.generic_class->container_class->byval_arg;
5556 case MONO_TYPE_TYPEDBYREF:
5558 g_error ("type 0x%02x not handled in marshal", t);
5560 return MONO_NATIVE_MAX;
5564 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5567 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5573 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5574 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5576 /* FIXME: Index translation */
5578 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5581 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5585 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
5587 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5589 switch (tok & MONO_METHODDEFORREF_MASK) {
5590 case MONO_METHODDEFORREF_METHODDEF:
5591 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
5592 case MONO_METHODDEFORREF_METHODREF:
5593 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
5595 g_assert_not_reached ();
5600 * mono_class_get_overrides_full:
5602 * Return the method overrides belonging to class @type_token in @overrides, and
5603 * the number of overrides in @num_overrides.
5605 * Returns: TRUE on success, FALSE on failure.
5608 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5609 MonoGenericContext *generic_context)
5613 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5616 guint32 cols [MONO_METHODIMPL_SIZE];
5617 MonoMethod **result;
5628 loc.col_idx = MONO_METHODIMPL_CLASS;
5629 loc.idx = mono_metadata_token_index (type_token);
5631 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5637 * We may end up in the middle of the rows...
5640 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5645 while (end < tdef->rows) {
5646 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5652 result = g_new (MonoMethod*, num * 2);
5653 for (i = 0; i < num; ++i) {
5656 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
5657 mono_error_cleanup (&error);
5662 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5663 method = method_from_method_def_or_ref (
5664 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
5667 result [i * 2] = method;
5668 method = method_from_method_def_or_ref (
5669 image, cols [MONO_METHODIMPL_BODY], generic_context);
5672 result [i * 2 + 1] = method;
5675 *overrides = result;
5677 *num_overrides = num;
5682 * mono_guid_to_string:
5684 * Converts a 16 byte Microsoft GUID to the standard string representation.
5687 mono_guid_to_string (const guint8 *guid)
5689 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5690 guid[3], guid[2], guid[1], guid[0],
5694 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
5698 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
5700 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
5701 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
5702 guint32 i, token, found;
5703 MonoClass *klass, **res;
5704 GSList *cons = NULL, *tmp;
5705 MonoGenericContext *context = &container->context;
5707 *constraints = NULL;
5709 for (i = 0; i < tdef->rows; ++i) {
5710 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
5711 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
5712 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
5713 klass = mono_class_get_full (image, token, context);
5715 g_slist_free (cons);
5718 cons = g_slist_append (cons, klass);
5721 /* contiguous list finished */
5728 res = g_new0 (MonoClass*, found + 1);
5729 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
5730 res [i] = tmp->data;
5732 g_slist_free (cons);
5738 * mono_metadata_get_generic_param_row:
5741 * @token: TypeOrMethodDef token, owner for GenericParam
5742 * @owner: coded token, set on return
5744 * Returns: 1-based row-id in the GenericParam table whose
5745 * owner is @token. 0 if not found.
5748 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
5750 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5757 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
5758 *owner = MONO_TYPEORMETHOD_TYPE;
5759 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5760 *owner = MONO_TYPEORMETHOD_METHOD;
5762 g_error ("wrong token %x to get_generic_param_row", token);
5765 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
5768 loc.col_idx = MONO_GENERICPARAM_OWNER;
5771 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5774 /* Find the first entry by searching backwards */
5775 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
5778 return loc.result + 1;
5782 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
5785 return mono_metadata_get_generic_param_row (image, token, &owner);
5789 mono_metadata_load_generic_param_constraints_full (MonoImage *image, guint32 token,
5790 MonoGenericContainer *container)
5793 guint32 start_row, i, owner;
5794 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
5796 for (i = 0; i < container->type_argc; i++) {
5797 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container))
5804 * mono_metadata_load_generic_param_constraints:
5806 * @image: metadata context
5807 * @token: metadata token to load the contraints, can be methodef or typedef.
5808 * @container: generic container to load into.
5810 * Load the generic parameter constraints for the newly created generic type or method
5811 * represented by @token and @container. The @container is the new container which has
5812 * been returned by a call to mono_metadata_load_generic_params() with this @token.
5815 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
5816 MonoGenericContainer *container)
5818 mono_metadata_load_generic_param_constraints_full (image, token, container);
5819 /*FIXME this function can potentially exit with a pending loader error and cause all sort of havok */
5823 * mono_metadata_load_generic_params:
5825 * Load the type parameters from the type or method definition @token.
5827 * Use this method after parsing a type or method definition to figure out whether it's a generic
5828 * type / method. When parsing a method definition, @parent_container points to the generic container
5829 * of the current class, if any.
5831 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
5832 * creating the type.
5834 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
5836 * LOCKING: Acquires the loader lock
5839 MonoGenericContainer *
5840 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
5842 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5843 guint32 cols [MONO_GENERICPARAM_SIZE];
5844 guint32 i, owner = 0, n;
5845 MonoGenericContainer *container;
5846 MonoGenericParamFull *params;
5847 MonoGenericContext *context;
5849 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
5851 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5854 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
5855 container->image = image;
5858 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
5859 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
5860 params [n - 1].param.owner = container;
5861 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
5862 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
5863 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
5864 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
5865 if (params [n - 1].param.num != n - 1)
5866 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
5867 if (++i > tdef->rows)
5869 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5870 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
5872 container->type_argc = n;
5873 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
5874 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
5876 container->parent = parent_container;
5878 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5879 container->is_method = 1;
5881 g_assert (container->parent == NULL || container->is_method);
5883 context = &container->context;
5884 if (container->is_method) {
5885 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
5886 context->method_inst = mono_get_shared_generic_inst (container);
5888 context->class_inst = mono_get_shared_generic_inst (container);
5895 mono_get_shared_generic_inst (MonoGenericContainer *container)
5897 MonoType **type_argv;
5899 MonoGenericInst *nginst;
5902 type_argv = g_new0 (MonoType *, container->type_argc);
5903 helper = g_new0 (MonoType, container->type_argc);
5905 for (i = 0; i < container->type_argc; i++) {
5906 MonoType *t = &helper [i];
5908 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5909 t->data.generic_param = mono_generic_container_get_param (container, i);
5914 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
5923 * mono_type_is_byref:
5924 * @type: the MonoType operated on
5926 * Returns: #TRUE if @type represents a type passed by reference,
5930 mono_type_is_byref (MonoType *type)
5936 * mono_type_get_type:
5937 * @type: the MonoType operated on
5939 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
5940 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
5943 mono_type_get_type (MonoType *type)
5949 * mono_type_get_signature:
5950 * @type: the MonoType operated on
5952 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
5954 * Returns: the MonoMethodSignature pointer that describes the signature
5955 * of the function pointer @type represents.
5957 MonoMethodSignature*
5958 mono_type_get_signature (MonoType *type)
5960 g_assert (type->type == MONO_TYPE_FNPTR);
5961 return type->data.method;
5965 * mono_type_get_class:
5966 * @type: the MonoType operated on
5968 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
5969 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
5972 * Returns: the MonoClass pointer that describes the class that @type represents.
5975 mono_type_get_class (MonoType *type)
5977 /* FIXME: review the runtime users before adding the assert here */
5978 return type->data.klass;
5982 * mono_type_get_array_type:
5983 * @type: the MonoType operated on
5985 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
5987 * Returns: a MonoArrayType struct describing the array type that @type
5988 * represents. The info includes details such as rank, array element type
5989 * and the sizes and bounds of multidimensional arrays.
5992 mono_type_get_array_type (MonoType *type)
5994 return type->data.array;
5998 * mono_type_get_ptr_type:
5999 * @type: the MonoType operated on
6001 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6004 * Returns: the MonoType pointer that describes the type that @type
6005 * represents a pointer to.
6008 mono_type_get_ptr_type (MonoType *type)
6010 g_assert (type->type == MONO_TYPE_PTR);
6011 return type->data.type;
6015 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6017 /* FIXME: implement */
6022 * mono_type_is_struct:
6023 * @type: the MonoType operated on
6025 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6026 * or a basic type like System.Int32. #FALSE otherwise.
6029 mono_type_is_struct (MonoType *type)
6031 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6032 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6033 ((type->type == MONO_TYPE_GENERICINST) &&
6034 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6035 !type->data.generic_class->container_class->enumtype)));
6039 * mono_type_is_void:
6040 * @type: the MonoType operated on
6042 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6045 mono_type_is_void (MonoType *type)
6047 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6051 * mono_type_is_pointer:
6052 * @type: the MonoType operated on
6054 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6057 mono_type_is_pointer (MonoType *type)
6059 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6060 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6061 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6062 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6063 (type->type == MONO_TYPE_FNPTR)));
6067 * mono_type_is_reference:
6068 * @type: the MonoType operated on
6070 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6073 mono_type_is_reference (MonoType *type)
6075 return (type && (((type->type == MONO_TYPE_STRING) ||
6076 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6077 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6078 ((type->type == MONO_TYPE_GENERICINST) &&
6079 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6083 * mono_signature_get_return_type:
6084 * @sig: the method signature inspected
6086 * Returns: the return type of the method signature @sig
6089 mono_signature_get_return_type (MonoMethodSignature *sig)
6095 * mono_signature_get_params:
6096 * @sig: the method signature inspected
6097 * #iter: pointer to an iterator
6099 * Iterates over the parameters for the method signature @sig.
6100 * A void* pointer must be initualized to #NULL to start the iteration
6101 * and it's address is passed to this function repeteadly until it returns
6104 * Returns: the next parameter type of the method signature @sig,
6105 * #NULL when finished.
6108 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6114 /* start from the first */
6115 if (sig->param_count) {
6116 *iter = &sig->params [0];
6117 return sig->params [0];
6125 if (type < &sig->params [sig->param_count]) {
6133 * mono_signature_get_param_count:
6134 * @sig: the method signature inspected
6136 * Returns: the number of parameters in the method signature @sig.
6139 mono_signature_get_param_count (MonoMethodSignature *sig)
6141 return sig->param_count;
6145 * mono_signature_get_call_conv:
6146 * @sig: the method signature inspected
6148 * Returns: the call convention of the method signature @sig.
6151 mono_signature_get_call_conv (MonoMethodSignature *sig)
6153 return sig->call_convention;
6157 * mono_signature_vararg_start:
6158 * @sig: the method signature inspected
6160 * Returns: the number of the first vararg parameter in the
6161 * method signature @sig. -1 if this is not a vararg signature.
6164 mono_signature_vararg_start (MonoMethodSignature *sig)
6166 return sig->sentinelpos;
6170 * mono_signature_is_instance:
6171 * @sig: the method signature inspected
6173 * Returns: #TRUE if this the method signature @sig has an implicit
6174 * first instance argument. #FALSE otherwise.
6177 mono_signature_is_instance (MonoMethodSignature *sig)
6179 return sig->hasthis;
6183 * mono_signature_explicit_this:
6184 * @sig: the method signature inspected
6186 * Returns: #TRUE if this the method signature @sig has an explicit
6187 * instance argument. #FALSE otherwise.
6190 mono_signature_explicit_this (MonoMethodSignature *sig)
6192 return sig->explicit_this;
6195 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6197 mono_aligned_addr_hash (gconstpointer ptr)
6199 return GPOINTER_TO_UINT (ptr) >> 3;
6203 * If @field belongs to an inflated generic class, return the corresponding field of the
6204 * generic type definition class.
6207 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6212 if (!field->parent->generic_class)
6215 gtd = field->parent->generic_class->container_class;
6216 offset = field - field->parent->fields;
6217 return gtd->fields + offset;
6221 * If @event belongs to an inflated generic class, return the corresponding event of the
6222 * generic type definition class.
6225 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6230 if (!event->parent->generic_class)
6233 gtd = event->parent->generic_class->container_class;
6234 offset = event - event->parent->ext->events;
6235 return gtd->ext->events + offset;
6239 * If @property belongs to an inflated generic class, return the corresponding property of the
6240 * generic type definition class.
6243 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6248 if (!property->parent->generic_class)
6251 gtd = property->parent->generic_class->container_class;
6252 offset = property - property->parent->ext->properties;
6253 return gtd->ext->properties + offset;