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 "debug-helpers.h"
32 #include <mono/utils/mono-error-internals.h>
34 /* Auxiliary structure used for caching inflated signatures */
36 MonoMethodSignature *sig;
37 MonoGenericContext context;
38 } MonoInflatedMethodSignature;
40 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container, gboolean transient,
41 const char *ptr, const char **rptr);
43 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
44 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
45 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
46 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
47 gboolean signature_only);
48 static GSList* free_generic_inst_dependents (MonoGenericInst *ginst);
49 static void free_generic_inst (MonoGenericInst *ginst);
50 static GSList* free_generic_class_dependents (MonoGenericClass *ginst);
51 static void free_generic_class (MonoGenericClass *ginst);
52 static void free_inflated_method (MonoMethodInflated *method);
53 static void free_inflated_signature (MonoInflatedMethodSignature *sig);
54 static void mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva, MonoMarshalSpec **marshal_spec, gboolean alloc_from_image);
57 * This enumeration is used to describe the data types in the metadata
68 /* Index into Blob heap */
71 /* Index into String heap */
77 /* Pointer into a table */
80 /* HasConstant:Parent pointer (Param, Field or Property) */
83 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
86 /* CustomAttributeType encoded index */
89 /* HasDeclSecurity index: TypeDef Method or Assembly */
92 /* Implementation coded index: File, Export AssemblyRef */
95 /* HasFieldMarshal coded index: Field or Param table */
98 /* MemberForwardedIndex: Field or Method */
101 /* TypeDefOrRef coded index: typedef, typeref, typespec */
104 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
107 /* MethodDefOrRef coded index: Method or Member Ref table */
110 /* HasSemantic coded index: Event or Property */
113 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
117 const static unsigned char TableSchemas [] = {
118 #define ASSEMBLY_SCHEMA_OFFSET 0
119 MONO_MT_UINT32, /* "HashId" }, */
120 MONO_MT_UINT16, /* "Major" }, */
121 MONO_MT_UINT16, /* "Minor" }, */
122 MONO_MT_UINT16, /* "BuildNumber" }, */
123 MONO_MT_UINT16, /* "RevisionNumber" }, */
124 MONO_MT_UINT32, /* "Flags" }, */
125 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
126 MONO_MT_STRING_IDX, /* "Name" }, */
127 MONO_MT_STRING_IDX, /* "Culture" }, */
130 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
131 MONO_MT_UINT32, /* "OSPlatformID" }, */
132 MONO_MT_UINT32, /* "OSMajor" }, */
133 MONO_MT_UINT32, /* "OSMinor" }, */
136 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
137 MONO_MT_UINT32, /* "Processor" }, */
140 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
141 MONO_MT_UINT16, /* "Major" }, */
142 MONO_MT_UINT16, /* "Minor" }, */
143 MONO_MT_UINT16, /* "Build" }, */
144 MONO_MT_UINT16, /* "Revision" }, */
145 MONO_MT_UINT32, /* "Flags" }, */
146 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
147 MONO_MT_STRING_IDX, /* "Name" }, */
148 MONO_MT_STRING_IDX, /* "Culture" }, */
149 MONO_MT_BLOB_IDX, /* "HashValue" }, */
152 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
153 MONO_MT_UINT32, /* "OSPlatformID" }, */
154 MONO_MT_UINT32, /* "OSMajorVersion" }, */
155 MONO_MT_UINT32, /* "OSMinorVersion" }, */
156 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
159 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
160 MONO_MT_UINT32, /* "Processor" }, */
161 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
164 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
165 MONO_MT_UINT16, /* "PackingSize" }, */
166 MONO_MT_UINT32, /* "ClassSize" }, */
167 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
170 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
171 MONO_MT_UINT8, /* "Type" }, */
172 MONO_MT_UINT8, /* "PaddingZero" }, */
173 MONO_MT_CONST_IDX, /* "Parent" }, */
174 MONO_MT_BLOB_IDX, /* "Value" }, */
177 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
178 MONO_MT_HASCAT_IDX, /* "Parent" }, */
179 MONO_MT_CAT_IDX, /* "Type" }, */
180 MONO_MT_BLOB_IDX, /* "Value" }, */
183 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
184 MONO_MT_UINT16, /* "Action" }, */
185 MONO_MT_HASDEC_IDX, /* "Parent" }, */
186 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
189 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
190 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
191 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
194 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
195 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
196 MONO_MT_STRING_IDX, /* "Name" }, */
197 MONO_MT_TDOR_IDX, /* "EventType" }, TypeDef or TypeRef or TypeSpec */
200 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
201 MONO_MT_TABLE_IDX, /* "Event" }, */
204 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
205 MONO_MT_UINT32, /* "Flags" }, */
206 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
207 MONO_MT_STRING_IDX, /* "TypeName" }, */
208 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
209 MONO_MT_IMPL_IDX, /* "Implementation" }, */
212 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
213 MONO_MT_UINT16, /* "Flags" }, */
214 MONO_MT_STRING_IDX, /* "Name" }, */
215 MONO_MT_BLOB_IDX, /* "Signature" }, */
218 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
219 MONO_MT_UINT32, /* "Offset" }, */
220 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
223 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
224 MONO_MT_HFM_IDX, /* "Parent" }, */
225 MONO_MT_BLOB_IDX, /* "NativeType" }, */
228 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
229 MONO_MT_UINT32, /* "RVA" }, */
230 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
233 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
234 MONO_MT_TABLE_IDX, /* "Field" }, */
237 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
238 MONO_MT_UINT32, /* "Flags" }, */
239 MONO_MT_STRING_IDX, /* "Name" }, */
240 MONO_MT_BLOB_IDX, /* "Value" }, */
243 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
244 MONO_MT_UINT16, /* "MappingFlag" }, */
245 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
246 MONO_MT_STRING_IDX, /* "ImportName" }, */
247 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
250 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
251 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
252 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
255 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
256 MONO_MT_UINT32, /* "Offset" }, */
257 MONO_MT_UINT32, /* "Flags" }, */
258 MONO_MT_STRING_IDX, /* "Name" }, */
259 MONO_MT_IMPL_IDX, /* "Implementation" }, */
262 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
263 MONO_MT_MRP_IDX, /* "Class" }, */
264 MONO_MT_STRING_IDX, /* "Name" }, */
265 MONO_MT_BLOB_IDX, /* "Signature" }, */
268 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
269 MONO_MT_UINT32, /* "RVA" }, */
270 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
271 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
272 MONO_MT_STRING_IDX, /* "Name" }, */
273 MONO_MT_BLOB_IDX, /* "Signature" }, */
274 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
277 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
278 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
279 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
280 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
283 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
284 MONO_MT_UINT16, /* "MethodSemantic" }, */
285 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
286 MONO_MT_HS_IDX, /* "Association" }, */
289 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
290 MONO_MT_TABLE_IDX, /* "Method" }, */
293 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
294 MONO_MT_UINT16, /* "Generation" }, */
295 MONO_MT_STRING_IDX, /* "Name" }, */
296 MONO_MT_GUID_IDX, /* "MVID" }, */
297 MONO_MT_GUID_IDX, /* "EncID" }, */
298 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
301 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
302 MONO_MT_STRING_IDX, /* "Name" }, */
305 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
306 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
307 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
310 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
311 MONO_MT_UINT16, /* "Flags" }, */
312 MONO_MT_UINT16, /* "Sequence" }, */
313 MONO_MT_STRING_IDX, /* "Name" }, */
316 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
317 MONO_MT_TABLE_IDX, /* "Param" }, */
320 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
321 MONO_MT_UINT16, /* "Flags" }, */
322 MONO_MT_STRING_IDX, /* "Name" }, */
323 MONO_MT_BLOB_IDX, /* "Type" }, */
326 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
327 MONO_MT_TABLE_IDX, /* "Property" }, */
330 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
331 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
332 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
335 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
336 MONO_MT_BLOB_IDX, /* "Signature" }, */
339 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
340 MONO_MT_UINT32, /* "Flags" }, */
341 MONO_MT_STRING_IDX, /* "Name" }, */
342 MONO_MT_STRING_IDX, /* "Namespace" }, */
343 MONO_MT_TDOR_IDX, /* "Extends" }, */
344 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
345 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
348 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
349 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
350 MONO_MT_STRING_IDX, /* "Name" }, */
351 MONO_MT_STRING_IDX, /* "Namespace" }, */
354 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
355 MONO_MT_BLOB_IDX, /* "Signature" }, */
358 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
359 MONO_MT_UINT16, /* "Number" }, */
360 MONO_MT_UINT16, /* "Flags" }, */
361 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
362 MONO_MT_STRING_IDX, /* "Name" }, */
365 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
366 MONO_MT_MDOR_IDX, /* "Method" }, */
367 MONO_MT_BLOB_IDX, /* "Signature" }, */
370 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
371 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
372 MONO_MT_TDOR_IDX, /* "Constraint" }, */
375 #define NULL_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
379 /* Must be the same order as MONO_TABLE_* */
380 const static unsigned char
381 table_description [] = {
382 MODULE_SCHEMA_OFFSET,
383 TYPEREF_SCHEMA_OFFSET,
384 TYPEDEF_SCHEMA_OFFSET,
385 FIELD_POINTER_SCHEMA_OFFSET,
387 METHOD_POINTER_SCHEMA_OFFSET,
388 METHOD_SCHEMA_OFFSET,
389 PARAM_POINTER_SCHEMA_OFFSET,
391 IFACEMAP_SCHEMA_OFFSET,
392 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
393 CONSTANT_SCHEMA_OFFSET,
394 CUSTOM_ATTR_SCHEMA_OFFSET,
395 FIELD_MARSHAL_SCHEMA_OFFSET,
396 DECL_SEC_SCHEMA_OFFSET,
397 CLASS_LAYOUT_SCHEMA_OFFSET,
398 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
399 STDALON_SIG_SCHEMA_OFFSET,
400 EVENTMAP_SCHEMA_OFFSET,
401 EVENT_POINTER_SCHEMA_OFFSET,
403 PROPERTY_MAP_SCHEMA_OFFSET,
404 PROPERTY_POINTER_SCHEMA_OFFSET,
405 PROPERTY_SCHEMA_OFFSET,
406 METHOD_SEMA_SCHEMA_OFFSET,
407 METHOD_IMPL_SCHEMA_OFFSET,
408 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
409 TYPESPEC_SCHEMA_OFFSET,
410 IMPLMAP_SCHEMA_OFFSET,
411 FIELD_RVA_SCHEMA_OFFSET,
414 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
415 ASSEMBLYPROC_SCHEMA_OFFSET,
416 ASSEMBLYOS_SCHEMA_OFFSET,
417 ASSEMBLYREF_SCHEMA_OFFSET,
418 ASSEMBLYREFPROC_SCHEMA_OFFSET,
419 ASSEMBLYREFOS_SCHEMA_OFFSET,
421 EXPORTED_TYPE_SCHEMA_OFFSET,
422 MANIFEST_SCHEMA_OFFSET,
423 NESTED_CLASS_SCHEMA_OFFSET,
424 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
425 METHOD_SPEC_SCHEMA_OFFSET,
426 GEN_CONSTRAINT_SCHEMA_OFFSET
429 #ifdef HAVE_ARRAY_ELEM_INIT
430 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
431 #define MSGSTRFIELD1(line) str##line
432 static const struct msgstr_t {
433 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
434 #include "mono/cil/tables.def"
437 #define TABLEDEF(a,b) b,
438 #include "mono/cil/tables.def"
441 static const gint16 tableidx [] = {
442 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
443 #include "mono/cil/tables.def"
448 #define TABLEDEF(a,b) b,
449 static const char* const
450 mono_tables_names [] = {
451 #include "mono/cil/tables.def"
458 * mono_meta_table_name:
459 * @table: table index
461 * Returns the name of the given ECMA metadata logical format table
462 * as described in ECMA 335, Partition II, Section 22.
464 * Returns: the name for the @table index
467 mono_meta_table_name (int table)
469 if ((table < 0) || (table > MONO_TABLE_LAST))
472 #ifdef HAVE_ARRAY_ELEM_INIT
473 return (const char*)&tablestr + tableidx [table];
475 return mono_tables_names [table];
479 /* The guy who wrote the spec for this should not be allowed near a
482 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
483 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
484 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
485 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
486 inverse of this mapping.
489 #define rtsize(s,b) (((s) < (1 << (b)) ? 2 : 4))
490 #define idx_size(tableidx) (meta->tables [(tableidx)].rows < 65536 ? 2 : 4)
492 /* Reference: Partition II - 23.2.6 */
494 * mono_metadata_compute_size:
495 * @meta: metadata context
496 * @tableindex: metadata table number
497 * @result_bitfield: pointer to guint32 where to store additional info
499 * mono_metadata_compute_size() computes the lenght in bytes of a single
500 * row in a metadata table. The size of each column is encoded in the
501 * @result_bitfield return value along with the number of columns in the table.
502 * the resulting bitfield should be handed to the mono_metadata_table_size()
503 * and mono_metadata_table_count() macros.
504 * This is a Mono runtime internal only function.
507 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
509 guint32 bitfield = 0;
510 int size = 0, field_size = 0;
513 const unsigned char *description = TableSchemas + table_description [tableindex];
515 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
518 field_size = 4; break;
521 field_size = 2; break;
524 field_size = 1; break;
526 case MONO_MT_BLOB_IDX:
527 field_size = meta->idx_blob_wide ? 4 : 2; break;
529 case MONO_MT_STRING_IDX:
530 field_size = meta->idx_string_wide ? 4 : 2; break;
532 case MONO_MT_GUID_IDX:
533 field_size = meta->idx_guid_wide ? 4 : 2; break;
535 case MONO_MT_TABLE_IDX:
536 /* Uhm, a table index can point to other tables besides the current one
537 * so, it's not correct to use the rowcount of the current table to
538 * get the size for this column - lupus
540 switch (tableindex) {
541 case MONO_TABLE_ASSEMBLYREFOS:
543 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
544 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
546 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
547 case MONO_TABLE_CLASSLAYOUT:
549 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
550 case MONO_TABLE_EVENTMAP:
551 g_assert (i == 0 || i == 1);
552 field_size = i ? idx_size (MONO_TABLE_EVENT):
553 idx_size(MONO_TABLE_TYPEDEF);
555 case MONO_TABLE_EVENT_POINTER:
557 field_size = idx_size (MONO_TABLE_EVENT); break;
558 case MONO_TABLE_EXPORTEDTYPE:
560 /* the index is in another metadata file, so it must be 4 */
561 field_size = 4; break;
562 case MONO_TABLE_FIELDLAYOUT:
564 field_size = idx_size (MONO_TABLE_FIELD); break;
565 case MONO_TABLE_FIELDRVA:
567 field_size = idx_size (MONO_TABLE_FIELD); break;
568 case MONO_TABLE_FIELD_POINTER:
570 field_size = idx_size (MONO_TABLE_FIELD); break;
571 case MONO_TABLE_IMPLMAP:
573 field_size = idx_size (MONO_TABLE_MODULEREF); break;
574 case MONO_TABLE_INTERFACEIMPL:
576 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
577 case MONO_TABLE_METHOD:
579 field_size = idx_size (MONO_TABLE_PARAM); break;
580 case MONO_TABLE_METHODIMPL:
582 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
583 case MONO_TABLE_METHODSEMANTICS:
585 field_size = idx_size (MONO_TABLE_METHOD); break;
586 case MONO_TABLE_METHOD_POINTER:
588 field_size = idx_size (MONO_TABLE_METHOD); break;
589 case MONO_TABLE_NESTEDCLASS:
590 g_assert (i == 0 || i == 1);
591 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
592 case MONO_TABLE_PARAM_POINTER:
594 field_size = idx_size (MONO_TABLE_PARAM); break;
595 case MONO_TABLE_PROPERTYMAP:
596 g_assert (i == 0 || i == 1);
597 field_size = i ? idx_size (MONO_TABLE_PROPERTY):
598 idx_size(MONO_TABLE_TYPEDEF);
600 case MONO_TABLE_PROPERTY_POINTER:
602 field_size = idx_size (MONO_TABLE_PROPERTY); break;
603 case MONO_TABLE_TYPEDEF:
604 g_assert (i == 4 || i == 5);
605 field_size = i == 4 ? idx_size (MONO_TABLE_FIELD):
606 idx_size(MONO_TABLE_METHOD);
608 case MONO_TABLE_GENERICPARAM:
610 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
611 /*This is a coded token for 2 tables, so takes 1 bit */
612 field_size = rtsize (n, 16 - MONO_TYPEORMETHOD_BITS);
614 case MONO_TABLE_GENERICPARAMCONSTRAINT:
616 field_size = idx_size (MONO_TABLE_GENERICPARAM);
620 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
625 * HasConstant: ParamDef, FieldDef, Property
627 case MONO_MT_CONST_IDX:
628 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
629 meta->tables [MONO_TABLE_FIELD].rows);
630 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
632 /* 2 bits to encode tag */
633 field_size = rtsize (n, 16-2);
637 * HasCustomAttribute: points to any table but
640 case MONO_MT_HASCAT_IDX:
642 * We believe that since the signature and
643 * permission are indexing the Blob heap,
644 * we should consider the blob size first
646 /* I'm not a believer - lupus
647 if (meta->idx_blob_wide){
652 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
653 meta->tables [MONO_TABLE_FIELD].rows);
654 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
655 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
656 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
657 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
658 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
659 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
660 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
661 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
662 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
663 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
664 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
665 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
666 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
667 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
668 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
669 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
670 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
672 /* 5 bits to encode */
673 field_size = rtsize (n, 16-5);
677 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
678 * MemberRef and String.
680 case MONO_MT_CAT_IDX:
681 /* String is a heap, if it is wide, we know the size */
683 if (meta->idx_string_wide){
688 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
689 meta->tables [MONO_TABLE_TYPEDEF].rows);
690 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
691 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
693 /* 3 bits to encode */
694 field_size = rtsize (n, 16-3);
698 * HasDeclSecurity: Typedef, MethodDef, Assembly
700 case MONO_MT_HASDEC_IDX:
701 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
702 meta->tables [MONO_TABLE_METHOD].rows);
703 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
705 /* 2 bits to encode */
706 field_size = rtsize (n, 16-2);
710 * Implementation: File, AssemblyRef, ExportedType
712 case MONO_MT_IMPL_IDX:
713 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
714 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
715 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
717 /* 2 bits to encode tag */
718 field_size = rtsize (n, 16-2);
722 * HasFieldMarshall: FieldDef, ParamDef
724 case MONO_MT_HFM_IDX:
725 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
726 meta->tables [MONO_TABLE_PARAM].rows);
728 /* 1 bit used to encode tag */
729 field_size = rtsize (n, 16-1);
733 * MemberForwarded: FieldDef, MethodDef
736 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
737 meta->tables [MONO_TABLE_METHOD].rows);
739 /* 1 bit used to encode tag */
740 field_size = rtsize (n, 16-1);
744 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
746 * It is TypeDef, _TypeRef_, TypeSpec, instead.
748 case MONO_MT_TDOR_IDX:
749 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
750 meta->tables [MONO_TABLE_TYPEREF].rows);
751 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
753 /* 2 bits to encode */
754 field_size = rtsize (n, 16-2);
758 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
760 case MONO_MT_MRP_IDX:
761 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
762 meta->tables [MONO_TABLE_TYPEREF].rows);
763 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
764 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
765 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
766 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
768 /* 3 bits to encode */
769 field_size = rtsize (n, 16 - 3);
773 * MethodDefOrRef: MethodDef, MemberRef
775 case MONO_MT_MDOR_IDX:
776 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
777 meta->tables [MONO_TABLE_MEMBERREF].rows);
779 /* 1 bit used to encode tag */
780 field_size = rtsize (n, 16-1);
784 * HasSemantics: Property, Event
787 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
788 meta->tables [MONO_TABLE_EVENT].rows);
790 /* 1 bit used to encode tag */
791 field_size = rtsize (n, 16-1);
795 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
798 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
799 meta->tables [MONO_TABLE_MODULEREF].rows);
800 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
801 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
803 /* 2 bits used to encode tag (ECMA spec claims 3) */
804 field_size = rtsize (n, 16 - 2);
809 * encode field size as follows (we just need to
816 bitfield |= (field_size-1) << shift;
819 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
822 *result_bitfield = (i << 24) | bitfield;
827 * mono_metadata_compute_table_bases:
828 * @meta: metadata context to compute table values
830 * Computes the table bases for the metadata structure.
831 * This is an internal function used by the image loader code.
834 mono_metadata_compute_table_bases (MonoImage *meta)
837 const char *base = meta->tables_base;
839 for (i = 0; i < MONO_TABLE_NUM; i++) {
840 MonoTableInfo *table = &meta->tables [i];
841 if (table->rows == 0)
844 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
846 base += table->rows * table->row_size;
851 * mono_metadata_locate:
852 * @meta: metadata context
853 * @table: table code.
854 * @idx: index of element to retrieve from @table.
856 * Returns: a pointer to the @idx element in the metadata table
857 * whose code is @table.
860 mono_metadata_locate (MonoImage *meta, int table, int idx)
862 /* idx == 0 refers always to NULL */
863 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
865 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
869 * mono_metadata_locate_token:
870 * @meta: metadata context
871 * @token: metadata token
873 * Returns: a pointer to the data in the metadata represented by the
877 mono_metadata_locate_token (MonoImage *meta, guint32 token)
879 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
883 * mono_metadata_string_heap:
884 * @meta: metadata context
885 * @index: index into the string heap.
887 * Returns: an in-memory pointer to the @index in the string heap.
890 mono_metadata_string_heap (MonoImage *meta, guint32 index)
892 g_return_val_if_fail (index < meta->heap_strings.size, "");
893 return meta->heap_strings.data + index;
897 * mono_metadata_user_string:
898 * @meta: metadata context
899 * @index: index into the user string heap.
901 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
904 mono_metadata_user_string (MonoImage *meta, guint32 index)
906 g_return_val_if_fail (index < meta->heap_us.size, "");
907 return meta->heap_us.data + index;
911 * mono_metadata_blob_heap:
912 * @meta: metadata context
913 * @index: index into the blob.
915 * Returns: an in-memory pointer to the @index in the Blob heap.
918 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
920 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
921 return meta->heap_blob.data + index;
925 * mono_metadata_guid_heap:
926 * @meta: metadata context
927 * @index: index into the guid heap.
929 * Returns: an in-memory pointer to the @index in the guid heap.
932 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
935 index *= 16; /* adjust for guid size and 1-based index */
936 g_return_val_if_fail (index < meta->heap_guid.size, "");
937 return meta->heap_guid.data + index;
940 static const unsigned char *
941 dword_align (const unsigned char *ptr)
943 #if SIZEOF_VOID_P == 8
944 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
946 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
951 * mono_metadata_decode_row:
952 * @t: table to extract information from.
953 * @idx: index in table.
954 * @res: array of @res_size cols to store the results in
956 * This decompresses the metadata element @idx in table @t
957 * into the guint32 @res array that has res_size elements
960 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
962 guint32 bitfield = t->size_bitfield;
963 int i, count = mono_metadata_table_count (bitfield);
966 g_assert (idx < t->rows);
968 data = t->base + idx * t->row_size;
970 g_assert (res_size == count);
972 for (i = 0; i < count; i++) {
973 int n = mono_metadata_table_size (bitfield, i);
977 res [i] = *data; break;
979 res [i] = read16 (data); break;
981 res [i] = read32 (data); break;
983 g_assert_not_reached ();
990 * mono_metadata_decode_row_col:
991 * @t: table to extract information from.
992 * @idx: index for row in table.
993 * @col: column in the row.
995 * This function returns the value of column @col from the @idx
996 * row in the table @t.
999 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
1001 guint32 bitfield = t->size_bitfield;
1003 register const char *data;
1006 g_assert (idx < t->rows);
1007 g_assert (col < mono_metadata_table_count (bitfield));
1008 data = t->base + idx * t->row_size;
1010 n = mono_metadata_table_size (bitfield, 0);
1011 for (i = 0; i < col; ++i) {
1013 n = mono_metadata_table_size (bitfield, i + 1);
1019 return read16 (data);
1021 return read32 (data);
1023 g_assert_not_reached ();
1029 * mono_metadata_decode_blob_size:
1030 * @ptr: pointer to a blob object
1031 * @rptr: the new position of the pointer
1033 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1035 * Returns: the size of the blob object
1038 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1040 const unsigned char *ptr = (const unsigned char *)xptr;
1043 if ((*ptr & 0x80) == 0){
1044 size = ptr [0] & 0x7f;
1046 } else if ((*ptr & 0x40) == 0){
1047 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1050 size = ((ptr [0] & 0x1f) << 24) +
1062 * mono_metadata_decode_value:
1063 * @ptr: pointer to decode from
1064 * @rptr: the new position of the pointer
1066 * This routine decompresses 32-bit values as specified in the "Blob and
1067 * Signature" section (22.2)
1069 * Returns: the decoded value
1072 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1074 const unsigned char *ptr = (const unsigned char *) _ptr;
1075 unsigned char b = *ptr;
1078 if ((b & 0x80) == 0){
1081 } else if ((b & 0x40) == 0){
1082 len = ((b & 0x3f) << 8 | ptr [1]);
1085 len = ((b & 0x1f) << 24) |
1098 * mono_metadata_decode_signed_value:
1099 * @ptr: pointer to decode from
1100 * @rptr: the new position of the pointer
1102 * This routine decompresses 32-bit signed values
1103 * (not specified in the spec)
1105 * Returns: the decoded value
1108 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1110 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1111 gint32 ival = uval >> 1;
1114 /* ival is a truncated 2's complement negative number. */
1116 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1119 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1120 return ival - 0x2000;
1121 if (ival < 0x10000000)
1122 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1123 return ival - 0x10000000;
1124 g_assert (ival < 0x20000000);
1125 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1126 return ival - 0x20000000;
1130 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1131 * using the *Ptr tables in uncompressed metadata, if they are available.
1133 * FIXME: The caller is not forced to call this function, which is error-prone, since
1134 * forgetting to call it would only show up as a bug on uncompressed metadata.
1137 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1139 if (!image->uncompressed_metadata)
1143 case MONO_TABLE_METHOD:
1144 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1145 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1148 case MONO_TABLE_FIELD:
1149 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1150 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1153 case MONO_TABLE_EVENT:
1154 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1155 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1158 case MONO_TABLE_PROPERTY:
1159 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1160 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1163 case MONO_TABLE_PARAM:
1164 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1165 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1174 * mono_metadata_decode_table_row:
1176 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1177 * uncompressed metadata into account, so it should be used to access the
1178 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1179 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1182 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1184 if (image->uncompressed_metadata)
1185 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1187 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1191 * mono_metadata_decode_table_row_col:
1193 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1194 * uncompressed metadata into account, so it should be used to access the
1195 * Method, Field, Param and Event tables.
1197 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1199 if (image->uncompressed_metadata)
1200 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1202 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1206 * mono_metadata_parse_typedef_or_ref:
1207 * @m: a metadata context.
1208 * @ptr: a pointer to an encoded TypedefOrRef in @m
1209 * @rptr: pointer updated to match the end of the decoded stream
1211 * Returns: a token valid in the @m metadata decoded from
1212 * the compressed representation.
1215 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1218 token = mono_metadata_decode_value (ptr, &ptr);
1221 return mono_metadata_token_from_dor (token);
1225 * mono_metadata_parse_custom_mod:
1226 * @m: a metadata context.
1227 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1228 * @ptr: a pointer to (possibly) the start of a custom modifier list
1229 * @rptr: pointer updated to match the end of the decoded stream
1231 * Checks if @ptr points to a type custom modifier compressed representation.
1233 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1236 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1238 MonoCustomMod local;
1239 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1242 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1243 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1250 * mono_metadata_parse_array_internal:
1251 * @m: a metadata context.
1252 * @transient: whenever to allocate data from the heap
1253 * @ptr: a pointer to an encoded array description.
1254 * @rptr: pointer updated to match the end of the decoded stream
1256 * Decodes the compressed array description found in the metadata @m at @ptr.
1258 * Returns: a #MonoArrayType structure describing the array type
1259 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1260 * on the value of @transient.
1262 * LOCKING: Acquires the loader lock
1264 static MonoArrayType *
1265 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1266 gboolean transient, const char *ptr, const char **rptr)
1269 MonoArrayType *array;
1272 array = transient ? g_malloc0 (sizeof (MonoArrayType)) : mono_image_alloc0 (m, sizeof (MonoArrayType));
1273 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1276 array->eklass = mono_class_from_mono_type (etype);
1277 array->rank = mono_metadata_decode_value (ptr, &ptr);
1279 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1280 if (array->numsizes)
1281 array->sizes = transient ? g_malloc0 (sizeof (int) * array->numsizes) : mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1282 for (i = 0; i < array->numsizes; ++i)
1283 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1285 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1286 if (array->numlobounds)
1287 array->lobounds = transient ? g_malloc0 (sizeof (int) * array->numlobounds) : mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1288 for (i = 0; i < array->numlobounds; ++i)
1289 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1297 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1298 const char *ptr, const char **rptr)
1300 return mono_metadata_parse_array_internal (m, container, FALSE, ptr, rptr);
1304 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1306 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1310 * mono_metadata_free_array:
1311 * @array: array description
1313 * Frees the array description returned from mono_metadata_parse_array().
1316 mono_metadata_free_array (MonoArrayType *array)
1318 g_free (array->sizes);
1319 g_free (array->lobounds);
1324 * need to add common field and param attributes combinations:
1327 * public static literal
1330 * private static literal
1332 static const MonoType
1334 /* data, attrs, type, nmods, byref, pinned */
1335 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1336 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1337 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1338 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1339 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1340 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1341 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1342 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1343 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1344 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1345 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1346 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1347 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1348 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1349 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1350 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1351 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1352 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1353 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1354 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1355 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1356 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1357 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1358 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1359 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1360 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1361 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1362 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1363 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1364 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1365 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1366 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1367 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1368 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1371 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1373 static GHashTable *type_cache = NULL;
1374 static int next_generic_inst_id = 0;
1376 static MonoImageSet *mscorlib_image_set;
1377 static GPtrArray *image_sets;
1379 static guint mono_generic_class_hash (gconstpointer data);
1382 * MonoTypes with modifies are never cached, so we never check or use that field.
1385 mono_type_hash (gconstpointer data)
1387 const MonoType *type = (const MonoType *) data;
1388 if (type->type == MONO_TYPE_GENERICINST)
1389 return mono_generic_class_hash (type->data.generic_class);
1391 return type->type | (type->byref << 8) | (type->attrs << 9);
1395 mono_type_equal (gconstpointer ka, gconstpointer kb)
1397 const MonoType *a = (const MonoType *) ka;
1398 const MonoType *b = (const MonoType *) kb;
1400 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1402 /* need other checks */
1407 mono_metadata_generic_inst_hash (gconstpointer data)
1409 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1413 for (i = 0; i < ginst->type_argc; ++i) {
1415 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1418 return hash ^ (ginst->is_open << 8);
1422 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1426 #ifndef MONO_SMALL_CONFIG
1427 if (a->id && b->id) {
1430 if (!signature_only)
1435 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1437 for (i = 0; i < a->type_argc; ++i) {
1438 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1445 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1447 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1448 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1450 return mono_generic_inst_equal_full (a, b, FALSE);
1454 mono_generic_class_hash (gconstpointer data)
1456 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1457 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1460 hash += gclass->is_tb_open;
1461 hash += mono_metadata_generic_context_hash (&gclass->context);
1467 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1469 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1470 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1472 return _mono_metadata_generic_class_equal (a, b, FALSE);
1476 * mono_metadata_init:
1478 * Initialize the global variables of this module.
1479 * This is a Mono runtime internal function.
1482 mono_metadata_init (void)
1486 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1488 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1489 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1493 * mono_metadata_cleanup:
1495 * Free all resources used by this module.
1496 * This is a Mono runtime internal function.
1499 mono_metadata_cleanup (void)
1501 g_hash_table_destroy (type_cache);
1503 g_ptr_array_free (image_sets, TRUE);
1508 * mono_metadata_parse_type:
1509 * @m: metadata context
1510 * @mode: king of type that may be found at @ptr
1511 * @opt_attrs: optional attributes to store in the returned type
1512 * @ptr: pointer to the type representation
1513 * @rptr: pointer updated to match the end of the decoded stream
1514 * @transient: whenever to allocate the result from the heap or from a mempool
1516 * Decode a compressed type description found at @ptr in @m.
1517 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1518 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1519 * This function can be used to decode type descriptions in method signatures,
1520 * field signatures, locals signatures etc.
1522 * To parse a generic type, `generic_container' points to the current class'es
1523 * (the `generic_container' field in the MonoClass) or the current generic method's
1524 * (stored in image->property_hash) generic container.
1525 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1526 * this MonoGenericContainer.
1528 * LOCKING: Acquires the loader lock.
1530 * Returns: a #MonoType structure representing the decoded type.
1533 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1534 short opt_attrs, gboolean transient, const char *ptr, const char **rptr)
1536 MonoType *type, *cached;
1538 gboolean byref = FALSE;
1539 gboolean pinned = FALSE;
1540 const char *tmp_ptr;
1545 * According to the spec, custom modifiers should come before the byref
1546 * flag, but the IL produced by ilasm from the following signature:
1547 * object modopt(...) &
1548 * starts with a byref flag, followed by the modifiers. (bug #49802)
1549 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1550 * it would be better to treat byref as real type constructor instead of
1552 * Also, pinned should come before anything else, but some MSV++ produced
1553 * assemblies violate this (#bug 61990).
1556 /* Count the modifiers first */
1561 case MONO_TYPE_PINNED:
1562 case MONO_TYPE_BYREF:
1565 case MONO_TYPE_CMOD_REQD:
1566 case MONO_TYPE_CMOD_OPT:
1568 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1578 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1579 type = transient ? g_malloc0 (size) : mono_image_alloc0 (m, size);
1580 type->num_mods = count;
1582 g_warning ("got more than 64 modifiers in type");
1585 memset (type, 0, MONO_SIZEOF_TYPE);
1588 /* Parse pinned, byref and custom modifiers */
1593 case MONO_TYPE_PINNED:
1597 case MONO_TYPE_BYREF:
1601 case MONO_TYPE_CMOD_REQD:
1602 case MONO_TYPE_CMOD_OPT:
1603 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1611 type->attrs = opt_attrs;
1612 type->byref = byref;
1613 type->pinned = pinned ? 1 : 0;
1615 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr)) {
1622 if (!type->num_mods && !transient) {
1623 /* no need to free type here, because it is on the stack */
1624 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1625 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1627 /* Consider the case:
1629 class Foo<T> { class Bar {} }
1630 class Test : Foo<Test>.Bar {}
1632 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1633 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1635 We ensure that the MonoClass is in a state that we can canonicalize to:
1637 klass->byval_arg.data.klass == klass
1638 klass->this_arg.data.klass == klass
1640 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1642 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1643 of a MonoClass which currently holds the loader lock. 'type' is local.
1645 if (ret->data.klass == type->data.klass) {
1649 /* No need to use locking since nobody is modifying the hash table */
1650 if ((cached = g_hash_table_lookup (type_cache, type))) {
1655 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1657 if (type == &stype) {
1658 type = transient ? g_malloc (MONO_SIZEOF_TYPE) : mono_image_alloc (m, MONO_SIZEOF_TYPE);
1659 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1665 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1666 short opt_attrs, const char *ptr, const char **rptr)
1668 return mono_metadata_parse_type_internal (m, container, mode, opt_attrs, FALSE, ptr, rptr);
1672 * LOCKING: Acquires the loader lock.
1675 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1676 const char *ptr, const char **rptr)
1678 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1682 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1684 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1685 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1686 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1688 if (def < methodt->rows)
1689 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1691 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1693 for (i = param_index; i < lastp; ++i) {
1694 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1703 * mono_metadata_get_param_attrs:
1705 * @m The image to loader parameter attributes from
1706 * @def method def token (one based)
1707 * @param_count number of params to decode including the return value
1709 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1710 * returned memory needs to be freed by the caller. If all the param attributes are
1711 * 0, then NULL is returned.
1714 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1716 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1717 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1718 guint32 cols [MONO_PARAM_SIZE];
1719 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1722 if (def < methodt->rows)
1723 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1725 lastp = paramt->rows + 1;
1727 for (i = param_index; i < lastp; ++i) {
1728 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1729 if (cols [MONO_PARAM_FLAGS]) {
1731 pattrs = g_new0 (int, param_count);
1732 /* at runtime we just ignore this kind of malformed file:
1733 * the verifier can signal the error to the user
1735 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1737 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1745 * mono_metadata_parse_signature_full:
1746 * @image: metadata context
1747 * @generic_container: generic container
1748 * @toke: metadata token
1750 * Decode a method signature stored in the STANDALONESIG table
1752 * LOCKING: Assumes the loader lock is held.
1754 * Returns: a MonoMethodSignature describing the signature.
1756 MonoMethodSignature*
1757 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1759 MonoTableInfo *tables = image->tables;
1760 guint32 idx = mono_metadata_token_index (token);
1765 return mono_lookup_dynamic_token (image, token, NULL);
1767 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1769 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1771 ptr = mono_metadata_blob_heap (image, sig);
1772 mono_metadata_decode_blob_size (ptr, &ptr);
1774 return mono_metadata_parse_method_signature_full (image, generic_container, 0, ptr, NULL);
1778 * mono_metadata_parse_signature:
1779 * @image: metadata context
1780 * @toke: metadata token
1782 * Decode a method signature stored in the STANDALONESIG table
1784 * Returns: a MonoMethodSignature describing the signature.
1786 MonoMethodSignature*
1787 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1789 return mono_metadata_parse_signature_full (image, NULL, token);
1793 * mono_metadata_signature_alloc:
1794 * @image: metadata context
1795 * @nparmas: number of parameters in the signature
1797 * Allocate a MonoMethodSignature structure with the specified number of params.
1798 * The return type and the params types need to be filled later.
1799 * This is a Mono runtime internal function.
1801 * LOCKING: Assumes the loader lock is held.
1803 * Returns: the new MonoMethodSignature structure.
1805 MonoMethodSignature*
1806 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1808 MonoMethodSignature *sig;
1810 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1811 sig->param_count = nparams;
1812 sig->sentinelpos = -1;
1817 static MonoMethodSignature*
1818 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1821 MonoMethodSignature *ret;
1822 sigsize = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1825 ret = mono_image_alloc (image, sigsize);
1827 ret = mono_mempool_alloc (mp, sigsize);
1829 ret = g_malloc (sigsize);
1831 memcpy (ret, sig, sigsize);
1835 MonoMethodSignature*
1836 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1838 return mono_metadata_signature_dup_internal (image, NULL, sig);
1841 /*The mempool is accessed without synchronization*/
1842 MonoMethodSignature*
1843 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1845 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1849 * mono_metadata_signature_dup:
1850 * @sig: method signature
1852 * Duplicate an existing MonoMethodSignature so it can be modified.
1853 * This is a Mono runtime internal function.
1855 * Returns: the new MonoMethodSignature structure.
1857 MonoMethodSignature*
1858 mono_metadata_signature_dup (MonoMethodSignature *sig)
1860 return mono_metadata_signature_dup_full (NULL, sig);
1864 * mono_metadata_signature_size:
1866 * Return the amount of memory allocated to SIG.
1869 mono_metadata_signature_size (MonoMethodSignature *sig)
1871 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1875 * mono_metadata_parse_method_signature:
1876 * @m: metadata context
1877 * @generic_container: generics container
1878 * @def: the MethodDef index or 0 for Ref signatures.
1879 * @ptr: pointer to the signature metadata representation
1880 * @rptr: pointer updated to match the end of the decoded stream
1882 * Decode a method signature stored at @ptr.
1883 * This is a Mono runtime internal function.
1885 * LOCKING: Assumes the loader lock is held.
1887 * Returns: a MonoMethodSignature describing the signature.
1889 MonoMethodSignature *
1890 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1891 int def, const char *ptr, const char **rptr)
1893 MonoMethodSignature *method;
1894 int i, *pattrs = NULL;
1895 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1896 guint32 gen_param_count = 0;
1897 gboolean is_open = FALSE;
1900 gen_param_count = 1;
1905 call_convention = *ptr & 0x0F;
1907 if (gen_param_count)
1908 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1909 param_count = mono_metadata_decode_value (ptr, &ptr);
1912 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 */
1914 method = mono_metadata_signature_alloc (m, param_count);
1915 method->hasthis = hasthis;
1916 method->explicit_this = explicit_this;
1917 method->call_convention = call_convention;
1918 method->generic_param_count = gen_param_count;
1920 if (call_convention != 0xa) {
1921 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1923 mono_metadata_free_method_signature (method);
1927 is_open = mono_class_is_open_constructed_type (method->ret);
1930 for (i = 0; i < method->param_count; ++i) {
1931 if (*ptr == MONO_TYPE_SENTINEL) {
1932 if (method->call_convention != MONO_CALL_VARARG || def) {
1933 g_warning ("found sentinel for methoddef or no vararg method 0x%08x on image %s", def, m->name);
1937 if (method->sentinelpos >= 0) {
1938 g_warning ("found sentinel twice in the same signature for method 0x%08x on image %s", def, m->name);
1942 method->sentinelpos = i;
1945 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1946 if (!method->params [i]) {
1947 mono_metadata_free_method_signature (method);
1952 is_open = mono_class_is_open_constructed_type (method->params [i]);
1955 /* The sentinel could be missing if the caller does not pass any additional arguments */
1956 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
1957 method->sentinelpos = method->param_count;
1959 method->has_type_parameters = is_open;
1961 if (def && (method->call_convention == MONO_CALL_VARARG))
1962 method->sentinelpos = method->param_count;
1969 * Add signature to a cache and increase ref count...
1976 * mono_metadata_parse_method_signature:
1977 * @m: metadata context
1978 * @def: the MethodDef index or 0 for Ref signatures.
1979 * @ptr: pointer to the signature metadata representation
1980 * @rptr: pointer updated to match the end of the decoded stream
1982 * Decode a method signature stored at @ptr.
1983 * This is a Mono runtime internal function.
1985 * LOCKING: Assumes the loader lock is held.
1987 * Returns: a MonoMethodSignature describing the signature.
1989 MonoMethodSignature *
1990 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1992 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1996 * mono_metadata_free_method_signature:
1997 * @sig: signature to destroy
1999 * Free the memory allocated in the signature @sig.
2000 * This method needs to be robust and work also on partially-built
2001 * signatures, so it does extra checks.
2004 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2006 /* Everything is allocated from mempools */
2010 mono_metadata_free_type (sig->ret);
2011 for (i = 0; i < sig->param_count; ++i) {
2012 if (sig->params [i])
2013 mono_metadata_free_type (sig->params [i]);
2019 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2023 /* Allocated in inflate_generic_signature () */
2025 mono_metadata_free_type (sig->ret);
2026 for (i = 0; i < sig->param_count; ++i) {
2027 if (sig->params [i])
2028 mono_metadata_free_type (sig->params [i]);
2034 inflated_method_equal (gconstpointer a, gconstpointer b)
2036 const MonoMethodInflated *ma = a;
2037 const MonoMethodInflated *mb = b;
2038 if (ma->declaring != mb->declaring)
2040 if (ma->method.method.is_mb_open != mb->method.method.is_mb_open)
2042 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2046 inflated_method_hash (gconstpointer a)
2048 const MonoMethodInflated *ma = a;
2049 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring)) + ma->method.method.is_mb_open;
2053 inflated_signature_equal (gconstpointer a, gconstpointer b)
2055 const MonoInflatedMethodSignature *sig1 = a;
2056 const MonoInflatedMethodSignature *sig2 = b;
2058 /* sig->sig is assumed to be canonized */
2059 if (sig1->sig != sig2->sig)
2061 /* The generic instances are canonized */
2062 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2066 inflated_signature_hash (gconstpointer a)
2068 const MonoInflatedMethodSignature *sig = a;
2070 /* sig->sig is assumed to be canonized */
2071 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2075 dump_ginst (MonoGenericInst *ginst)
2080 g_print ("Ginst: <");
2081 for (i = 0; i < ginst->type_argc; ++i) {
2084 name = mono_type_get_name (ginst->type_argv [i]);
2085 g_print ("%s", name);
2091 static gboolean type_in_image (MonoType *type, MonoImage *image);
2094 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2096 gpointer iter = NULL;
2099 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2100 if (type_in_image (p, image))
2103 return type_in_image (mono_signature_get_return_type (sig), image);
2107 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2111 for (i = 0; i < ginst->type_argc; ++i) {
2112 if (type_in_image (ginst->type_argv [i], image))
2120 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2122 return gclass->container_class->image == image ||
2123 ginst_in_image (gclass->context.class_inst, image);
2127 type_in_image (MonoType *type, MonoImage *image)
2130 switch (type->type) {
2131 case MONO_TYPE_GENERICINST:
2132 return gclass_in_image (type->data.generic_class, image);
2134 type = type->data.type;
2136 case MONO_TYPE_SZARRAY:
2137 type = &type->data.klass->byval_arg;
2139 case MONO_TYPE_ARRAY:
2140 type = &type->data.array->eklass->byval_arg;
2142 case MONO_TYPE_FNPTR:
2143 return signature_in_image (type->data.method, image);
2144 case MONO_TYPE_VAR: {
2145 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2147 g_assert (!container->is_method);
2149 * FIXME: The following check is here solely
2150 * for monodis, which uses the internal
2152 * mono_metadata_load_generic_params(). The
2153 * caller of that function needs to fill in
2154 * owner->klass or owner->method of the
2155 * returned struct, but monodis doesn't do
2156 * that. The image unloading depends on that,
2157 * however, so a crash results without this
2160 if (!container->owner.klass)
2161 return container->image == image;
2162 return container->owner.klass->image == image;
2164 return type->data.generic_param->image == image;
2167 case MONO_TYPE_MVAR: {
2168 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2169 if (type->data.generic_param->image == image)
2172 g_assert (container->is_method);
2173 if (!container->owner.method)
2174 /* RefEmit created generic param whose method is not finished */
2175 return container->image == image;
2176 return container->owner.method->klass->image == image;
2178 return type->data.generic_param->image == image;
2182 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2183 return image == mono_class_from_mono_type (type)->image;
2190 * Return a MonoImageSet representing the set of images in IMAGES.
2192 * LOCKING: Assumes the loader lock is held.
2194 static MonoImageSet*
2195 get_image_set (MonoImage **images, int nimages)
2202 image_sets = g_ptr_array_new ();
2205 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2206 return mscorlib_image_set;
2208 /* Happens with empty generic instances */
2210 return mscorlib_image_set;
2212 if (images [0] == mono_defaults.corlib && nimages > 1)
2213 l = images [1]->image_sets;
2215 l = images [0]->image_sets;
2218 for (; l; l = l->next) {
2221 if (set->nimages == nimages) {
2222 for (j = 0; j < nimages; ++j) {
2223 for (k = 0; k < nimages; ++k)
2224 if (set->images [k] == images [j])
2238 set = g_new0 (MonoImageSet, 1);
2239 set->nimages = nimages;
2240 set->images = g_new0 (MonoImage*, nimages);
2241 InitializeCriticalSection (&set->lock);
2242 for (i = 0; i < nimages; ++i)
2243 set->images [i] = images [i];
2244 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2245 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2246 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2247 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2249 for (i = 0; i < nimages; ++i)
2250 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2252 g_ptr_array_add (image_sets, set);
2255 if (nimages == 1 && images [0] == mono_defaults.corlib)
2256 mscorlib_image_set = set;
2262 delete_image_set (MonoImageSet *set)
2266 g_hash_table_destroy (set->gclass_cache);
2267 g_hash_table_destroy (set->ginst_cache);
2268 g_hash_table_destroy (set->gmethod_cache);
2269 g_hash_table_destroy (set->gsignature_cache);
2271 for (i = 0; i < set->nimages; ++i)
2272 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2274 g_ptr_array_remove (image_sets, set);
2277 mono_mempool_destroy (set->mempool);
2278 g_free (set->images);
2279 DeleteCriticalSection (&set->lock);
2284 * Structure used by the collect_..._images functions to store the image list.
2287 MonoImage *image_buf [64];
2289 int nimages, images_len;
2293 collect_data_init (CollectData *data)
2295 data->images = data->image_buf;
2296 data->images_len = 64;
2301 collect_data_free (CollectData *data)
2303 if (data->images != data->image_buf)
2304 g_free (data->images);
2308 enlarge_data (CollectData *data)
2310 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2311 MonoImage **d = g_new (MonoImage *, new_len);
2314 g_assert_not_reached ();
2315 memcpy (d, data->images, data->images_len);
2316 if (data->images != data->image_buf)
2317 g_free (data->images);
2319 data->images_len = new_len;
2323 add_image (MonoImage *image, CollectData *data)
2327 /* The arrays are small, so use a linear search instead of a hash table */
2328 for (i = 0; i < data->nimages; ++i)
2329 if (data->images [i] == image)
2332 if (data->nimages == data->images_len)
2333 enlarge_data (data);
2335 data->images [data->nimages ++] = image;
2339 collect_type_images (MonoType *type, CollectData *data);
2342 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2346 for (i = 0; i < ginst->type_argc; ++i) {
2347 collect_type_images (ginst->type_argv [i], data);
2352 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2354 add_image (gclass->container_class->image, data);
2355 if (gclass->context.class_inst)
2356 collect_ginst_images (gclass->context.class_inst, data);
2360 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2362 gpointer iter = NULL;
2365 collect_type_images (mono_signature_get_return_type (sig), data);
2366 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2367 collect_type_images (p, data);
2371 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2373 collect_signature_images (sig->sig, data);
2374 if (sig->context.class_inst)
2375 collect_ginst_images (sig->context.class_inst, data);
2376 if (sig->context.method_inst)
2377 collect_ginst_images (sig->context.method_inst, data);
2381 collect_method_images (MonoMethodInflated *method, CollectData *data)
2383 add_image (method->declaring->klass->image, data);
2384 if (method->context.class_inst)
2385 collect_ginst_images (method->context.class_inst, data);
2386 if (method->context.method_inst)
2387 collect_ginst_images (method->context.method_inst, data);
2389 if (((MonoMethod*)method)->signature)
2390 collect_signature_images (mono_method_signature ((MonoMethod*)method), data);
2395 collect_type_images (MonoType *type, CollectData *data)
2398 switch (type->type) {
2399 case MONO_TYPE_GENERICINST:
2400 collect_gclass_images (type->data.generic_class, data);
2403 type = type->data.type;
2405 case MONO_TYPE_SZARRAY:
2406 type = &type->data.klass->byval_arg;
2408 case MONO_TYPE_ARRAY:
2409 type = &type->data.array->eklass->byval_arg;
2411 case MONO_TYPE_FNPTR:
2412 //return signature_in_image (type->data.method, image);
2413 g_assert_not_reached ();
2414 case MONO_TYPE_VAR: {
2415 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2417 g_assert (!container->is_method);
2419 * FIXME: The following check is here solely
2420 * for monodis, which uses the internal
2422 * mono_metadata_load_generic_params(). The
2423 * caller of that function needs to fill in
2424 * owner->klass or owner->method of the
2425 * returned struct, but monodis doesn't do
2426 * that. The image unloading depends on that,
2427 * however, so a crash results without this
2430 if (!container->owner.klass)
2431 add_image (container->image, data);
2433 add_image (container->owner.klass->image, data);
2435 add_image (type->data.generic_param->image, data);
2439 case MONO_TYPE_MVAR: {
2440 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2441 if (type->data.generic_param->image)
2442 add_image (type->data.generic_param->image, data);
2444 if (!container->owner.method) {
2445 /* RefEmit created generic param whose method is not finished */
2446 add_image (container->image, data);
2448 g_assert (container->is_method);
2449 add_image (container->owner.method->klass->image, data);
2452 add_image (type->data.generic_param->image, data);
2456 case MONO_TYPE_CLASS:
2457 case MONO_TYPE_VALUETYPE:
2458 add_image (mono_class_from_mono_type (type)->image, data);
2461 add_image (mono_defaults.corlib, data);
2468 } CleanForImageUserData;
2471 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2473 MonoGenericClass *gclass = key;
2474 CleanForImageUserData *user_data = data;
2476 g_assert (gclass_in_image (gclass, user_data->image));
2478 user_data->list = g_slist_prepend (user_data->list, gclass);
2483 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2485 MonoGenericInst *ginst = key;
2486 CleanForImageUserData *user_data = data;
2488 // This doesn't work during corlib compilation
2489 //g_assert (ginst_in_image (ginst, user_data->image));
2491 user_data->list = g_slist_prepend (user_data->list, ginst);
2496 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2498 MonoImage *image = data;
2499 MonoMethodInflated *method = key;
2502 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2503 g_assert (method->declaring->klass->image == image ||
2504 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2505 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2511 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2513 MonoImage *image = data;
2514 MonoInflatedMethodSignature *sig = key;
2516 return signature_in_image (sig->sig, image) ||
2517 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2518 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2522 check_gmethod (gpointer key, gpointer value, gpointer data)
2524 MonoMethodInflated *method = key;
2525 MonoImage *image = data;
2527 if (method->context.class_inst)
2528 g_assert (!ginst_in_image (method->context.class_inst, image));
2529 if (method->context.method_inst)
2530 g_assert (!ginst_in_image (method->context.method_inst, image));
2531 if (((MonoMethod*)method)->signature)
2532 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2538 * Run a consistency check on the image set data structures.
2540 static G_GNUC_UNUSED void
2541 check_image_sets (MonoImage *image)
2544 GSList *l = image->image_sets;
2549 for (i = 0; i < image_sets->len; ++i) {
2550 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2552 if (!g_slist_find (l, set)) {
2553 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2559 mono_metadata_clean_for_image (MonoImage *image)
2561 CleanForImageUserData ginst_data, gclass_data;
2562 GSList *l, *set_list, *free_list = NULL;
2564 //check_image_sets (image);
2566 /* The data structures could reference each other so we delete them in two phases */
2567 ginst_data.image = gclass_data.image = image;
2568 ginst_data.list = gclass_data.list = NULL;
2569 mono_loader_lock ();
2571 /* Collect the items to delete */
2572 /* delete_image_set () modifies the lists so make a copy */
2573 for (l = image->image_sets; l; l = l->next) {
2574 MonoImageSet *set = l->data;
2576 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2577 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2578 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2579 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2582 /* Delete the removed items */
2583 for (l = ginst_data.list; l; l = l->next)
2584 free_list = g_slist_concat (free_generic_inst_dependents (l->data), free_list);
2585 for (l = gclass_data.list; l; l = l->next)
2586 free_list = g_slist_concat (free_generic_class_dependents (l->data), free_list);
2587 g_slist_free (ginst_data.list);
2588 g_slist_free (gclass_data.list);
2589 /* delete_image_set () modifies the lists so make a copy */
2590 set_list = g_slist_copy (image->image_sets);
2591 for (l = set_list; l; l = l->next) {
2592 MonoImageSet *set = l->data;
2594 delete_image_set (set);
2596 g_slist_free (set_list);
2598 mono_loader_unlock ();
2604 free_inflated_method (MonoMethodInflated *imethod)
2607 MonoMethod *method = (MonoMethod*)imethod;
2609 mono_marshal_free_inflated_wrappers (method);
2611 if (method->signature)
2612 mono_metadata_free_inflated_signature (method->signature);
2614 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))) {
2615 MonoMethodHeader *header = imethod->header;
2618 /* Allocated in inflate_generic_header () */
2619 for (i = 0; i < header->num_locals; ++i)
2620 mono_metadata_free_type (header->locals [i]);
2621 g_free (header->clauses);
2630 free_list_with_data (GSList *l)
2634 l = g_slist_delete_link (l, l);
2639 free_generic_inst_dependents (MonoGenericInst *ginst)
2643 for (i = 0; i < ginst->type_argc; ++i)
2644 mono_metadata_free_type (ginst->type_argv [i]);
2645 return g_slist_prepend (NULL, ginst);
2649 free_generic_inst (MonoGenericInst *ginst)
2651 free_list_with_data (free_generic_inst_dependents (ginst));
2655 free_generic_class_dependents (MonoGenericClass *gclass)
2660 /* FIXME: The dynamic case */
2661 if (gclass->cached_class && !gclass->cached_class->image->dynamic && !mono_generic_class_is_generic_type_definition (gclass)) {
2662 MonoClass *class = gclass->cached_class;
2664 /* Allocated in mono_class_init () */
2665 g_free (class->methods);
2667 g_free (class->ext->properties);
2668 g_free (class->ext->field_def_values);
2670 /* Allocated in mono_class_setup_fields () */
2671 g_free (class->fields);
2672 /* Allocated in mono_class_setup_vtable_general () */
2673 g_free (class->vtable);
2674 /* Allocated in mono_generic_class_get_class () */
2675 g_free (class->interfaces);
2676 /* Allocated in setup_interface_offsets () */
2677 g_free (class->interfaces_packed);
2678 g_free (class->interface_offsets_packed);
2679 g_free (class->interface_bitmap);
2680 /* Allocated in mono_class_setup_supertypes () */
2681 g_free (class->supertypes);
2682 l = g_slist_prepend (l, class);
2683 } else if (gclass->is_dynamic) {
2684 MonoDynamicGenericClass *dgclass = (MonoDynamicGenericClass *)gclass;
2686 for (i = 0; i < dgclass->count_fields; ++i) {
2687 MonoClassField *field = dgclass->fields + i;
2688 mono_metadata_free_type (field->type);
2689 g_free ((char*)field->name);
2691 MONO_GC_UNREGISTER_ROOT (dgclass->field_objects [i]);
2695 g_free (dgclass->methods);
2696 g_free (dgclass->ctors);
2697 g_free (dgclass->fields);
2698 g_free (dgclass->field_objects);
2699 g_free (dgclass->field_generic_types);
2700 if (!mono_generic_class_is_generic_type_definition (gclass))
2701 l = g_slist_prepend (l, gclass->cached_class);
2703 return g_slist_prepend (l, gclass);
2707 free_generic_class (MonoGenericClass *gclass)
2709 free_list_with_data (free_generic_class_dependents (gclass));
2713 free_inflated_signature (MonoInflatedMethodSignature *sig)
2715 mono_metadata_free_inflated_signature (sig->sig);
2720 * LOCKING: assumes the loader lock is held.
2723 mono_method_inflated_lookup (MonoMethodInflated* method, gboolean cache)
2728 collect_data_init (&data);
2730 collect_method_images (method, &data);
2732 set = get_image_set (data.images, data.nimages);
2734 collect_data_free (&data);
2737 g_hash_table_insert (set->gmethod_cache, method, method);
2741 return g_hash_table_lookup (set->gmethod_cache, method);
2746 * mono_metadata_get_inflated_signature:
2748 * Given an inflated signature and a generic context, return a canonical copy of the
2749 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2751 MonoMethodSignature *
2752 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2754 MonoInflatedMethodSignature helper;
2755 MonoInflatedMethodSignature *res;
2759 mono_loader_lock ();
2762 helper.context.class_inst = context->class_inst;
2763 helper.context.method_inst = context->method_inst;
2765 collect_data_init (&data);
2767 collect_inflated_signature_images (&helper, &data);
2769 set = get_image_set (data.images, data.nimages);
2771 collect_data_free (&data);
2773 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2775 res = g_new0 (MonoInflatedMethodSignature, 1);
2777 res->context.class_inst = context->class_inst;
2778 res->context.method_inst = context->method_inst;
2779 g_hash_table_insert (set->gsignature_cache, res, res);
2782 mono_loader_unlock ();
2787 * mono_metadata_get_generic_inst:
2789 * Given a list of types, return a MonoGenericInst that represents that list.
2790 * The returned MonoGenericInst has its own copy of the list of types. The list
2791 * passed in the argument can be freed, modified or disposed of.
2795 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2797 MonoGenericInst *ginst;
2800 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2804 for (i = 0; i < type_argc; ++i)
2805 if (mono_class_is_open_constructed_type (type_argv [i]))
2807 is_open = (i < type_argc);
2809 ginst = alloca (size);
2810 #ifndef MONO_SMALL_CONFIG
2813 ginst->is_open = is_open;
2814 ginst->type_argc = type_argc;
2815 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2817 mono_loader_lock ();
2819 collect_data_init (&data);
2821 collect_ginst_images (ginst, &data);
2823 set = get_image_set (data.images, data.nimages);
2825 collect_data_free (&data);
2827 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2829 ginst = g_malloc (size);
2830 #ifndef MONO_SMALL_CONFIG
2831 ginst->id = ++next_generic_inst_id;
2833 ginst->is_open = is_open;
2834 ginst->type_argc = type_argc;
2836 for (i = 0; i < type_argc; ++i)
2837 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2839 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2842 mono_loader_unlock ();
2847 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2849 MonoGenericContainer *container = container_class->generic_container;
2851 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2853 return inst == container->context.class_inst;
2857 * mono_metadata_lookup_generic_class:
2859 * Returns a MonoGenericClass with the given properties.
2863 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2865 MonoGenericClass *gclass;
2866 MonoGenericClass helper;
2867 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2871 helper.container_class = container_class;
2872 helper.context.class_inst = inst;
2873 helper.context.method_inst = NULL;
2874 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2875 helper.is_tb_open = is_tb_open;
2876 helper.cached_class = NULL;
2878 mono_loader_lock ();
2880 collect_data_init (&data);
2882 collect_gclass_images (&helper, &data);
2884 set = get_image_set (data.images, data.nimages);
2886 collect_data_free (&data);
2888 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
2890 /* A tripwire just to keep us honest */
2891 g_assert (!helper.cached_class);
2894 mono_loader_unlock ();
2899 MonoDynamicGenericClass *dgclass = g_new0 (MonoDynamicGenericClass, 1);
2900 gclass = &dgclass->generic_class;
2901 gclass->is_dynamic = 1;
2903 gclass = g_new0 (MonoGenericClass, 1);
2906 gclass->is_tb_open = is_tb_open;
2907 gclass->container_class = container_class;
2908 gclass->context.class_inst = inst;
2909 gclass->context.method_inst = NULL;
2910 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
2911 gclass->cached_class = container_class;
2913 g_hash_table_insert (set->gclass_cache, gclass, gclass);
2915 mono_loader_unlock ();
2921 * mono_metadata_inflate_generic_inst:
2923 * Instantiate the generic instance @ginst with the context @context.
2924 * Check @error for success.
2928 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
2930 MonoType **type_argv;
2931 MonoGenericInst *nginst = NULL;
2934 mono_error_init (error);
2936 if (!ginst->is_open)
2939 type_argv = g_new0 (MonoType*, ginst->type_argc);
2941 for (i = 0; i < ginst->type_argc; i++) {
2942 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
2943 if (!mono_error_ok (error))
2948 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
2951 for (i = 0; i < count; i++)
2952 mono_metadata_free_type (type_argv [i]);
2959 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
2960 int count, const char *ptr, const char **rptr)
2962 MonoType **type_argv;
2963 MonoGenericInst *ginst;
2966 type_argv = g_new0 (MonoType*, count);
2968 for (i = 0; i < count; i++) {
2969 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
2980 ginst = mono_metadata_get_generic_inst (count, type_argv);
2988 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
2989 const char *ptr, const char **rptr)
2991 MonoGenericInst *inst;
2996 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
3000 gklass = mono_class_from_mono_type (gtype);
3001 if (!gklass->generic_container)
3004 count = mono_metadata_decode_value (ptr, &ptr);
3005 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
3012 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3018 * @gc: The generic container to normalize
3019 * @type: The kind of generic parameters the resulting generic-container should contain
3022 static MonoGenericContainer *
3023 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3025 gboolean is_var = (type == MONO_TYPE_VAR);
3029 g_assert (is_var || type == MONO_TYPE_MVAR);
3032 if (gc->is_method || gc->parent)
3034 * The current MonoGenericContainer is a generic method -> its `parent'
3035 * points to the containing class'es container.
3044 * mono_metadata_parse_generic_param:
3045 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3046 * see mono_metadata_parse_type_full() for details.
3047 * Internal routine to parse a generic type parameter.
3048 * LOCKING: Acquires the loader lock
3050 static MonoGenericParam *
3051 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3052 MonoTypeEnum type, const char *ptr, const char **rptr)
3054 int index = mono_metadata_decode_value (ptr, &ptr);
3058 generic_container = select_container (generic_container, type);
3059 if (!generic_container) {
3060 /* Create dummy MonoGenericParam */
3061 MonoGenericParam *param;
3063 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3070 if (index >= generic_container->type_argc)
3073 return mono_generic_container_get_param (generic_container, index);
3077 * mono_metadata_get_shared_type:
3079 * Return a shared instance of TYPE, if available, NULL otherwise.
3080 * Shared MonoType instances help save memory. Their contents should not be modified
3081 * by the caller. They do not need to be freed as their lifetime is bound by either
3082 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3083 * instance they are embedded in. If they are freed, they should be freed using
3084 * mono_metadata_free_type () instead of g_free ().
3087 mono_metadata_get_shared_type (MonoType *type)
3091 /* No need to use locking since nobody is modifying the hash table */
3092 if ((cached = g_hash_table_lookup (type_cache, type)))
3095 switch (type->type){
3096 case MONO_TYPE_CLASS:
3097 case MONO_TYPE_VALUETYPE:
3098 if (type == &type->data.klass->byval_arg)
3100 if (type == &type->data.klass->this_arg)
3109 * do_mono_metadata_parse_type:
3110 * @type: MonoType to be filled in with the return value
3112 * @generic_context: generics_context
3113 * @transient: whenever to allocate data from the heap
3114 * @ptr: pointer to the encoded type
3115 * @rptr: pointer where the end of the encoded type is saved
3117 * Internal routine used to "fill" the contents of @type from an
3118 * allocated pointer. This is done this way to avoid doing too
3119 * many mini-allocations (particularly for the MonoFieldType which
3120 * most of the time is just a MonoType, but sometimes might be augmented).
3122 * This routine is used by mono_metadata_parse_type and
3123 * mono_metadata_parse_field_type
3125 * This extracts a Type as specified in Partition II (22.2.12)
3127 * Returns: FALSE if the type could not be loaded
3130 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3131 gboolean transient, const char *ptr, const char **rptr)
3134 type->type = mono_metadata_decode_value (ptr, &ptr);
3136 switch (type->type){
3137 case MONO_TYPE_VOID:
3138 case MONO_TYPE_BOOLEAN:
3139 case MONO_TYPE_CHAR:
3152 case MONO_TYPE_STRING:
3153 case MONO_TYPE_OBJECT:
3154 case MONO_TYPE_TYPEDBYREF:
3156 case MONO_TYPE_VALUETYPE:
3157 case MONO_TYPE_CLASS: {
3160 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3161 class = mono_class_get (m, token);
3162 type->data.klass = class;
3165 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3166 * See mcs/test/gtest-440. and #650936.
3167 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3169 if (class->byval_arg.type && class->byval_arg.type != type->type) {
3170 printf ("me [%x] it [%x] -- '%s'\n", type->type, type->data.klass->byval_arg.type, mono_type_full_name (type));
3175 case MONO_TYPE_SZARRAY: {
3176 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
3179 type->data.klass = mono_class_from_mono_type (etype);
3180 if (!type->data.klass)
3185 type->data.type = mono_metadata_parse_type_internal (m, container, MONO_PARSE_MOD_TYPE, 0, transient, ptr, &ptr);
3186 if (!type->data.type)
3189 case MONO_TYPE_FNPTR:
3190 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
3191 if (!type->data.method)
3194 case MONO_TYPE_ARRAY:
3195 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr);
3196 if (!type->data.array)
3199 case MONO_TYPE_MVAR:
3200 if (container && !container->is_method)
3203 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
3204 if (!type->data.generic_param)
3207 case MONO_TYPE_GENERICINST:
3208 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
3211 g_warning ("type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3221 * mono_metadata_free_type:
3222 * @type: type to free
3224 * Free the memory allocated for type @type which is allocated on the heap.
3227 mono_metadata_free_type (MonoType *type)
3229 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3232 switch (type->type){
3233 case MONO_TYPE_OBJECT:
3234 case MONO_TYPE_STRING:
3235 if (!type->data.klass)
3238 case MONO_TYPE_CLASS:
3239 case MONO_TYPE_VALUETYPE:
3240 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3244 mono_metadata_free_type (type->data.type);
3246 case MONO_TYPE_FNPTR:
3247 mono_metadata_free_method_signature (type->data.method);
3249 case MONO_TYPE_ARRAY:
3250 mono_metadata_free_array (type->data.array);
3259 hex_dump (const char *buffer, int base, int count)
3261 int show_header = 1;
3269 for (i = 0; i < count; i++){
3272 printf ("\n0x%08x: ", (unsigned char) base + i);
3274 printf ("%02x ", (unsigned char) (buffer [i]));
3281 * @ptr: Points to the beginning of the Section Data (25.3)
3283 static MonoExceptionClause*
3284 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3286 unsigned char sect_data_flags;
3287 const unsigned char *sptr;
3289 guint32 sect_data_len;
3290 MonoExceptionClause* clauses = NULL;
3293 /* align on 32-bit boundary */
3294 sptr = ptr = dword_align (ptr);
3295 sect_data_flags = *ptr;
3298 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3300 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3303 sect_data_len = ptr [0];
3307 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
3308 hex_dump (sptr, 0, sect_data_len+8);
3309 g_print ("\nheader: ");
3310 hex_dump (sptr-4, 0, 4);
3314 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3315 const unsigned char *p = dword_align (ptr);
3317 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3318 /* we could just store a pointer if we don't need to byteswap */
3319 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3320 for (i = 0; i < *num_clauses; ++i) {
3321 MonoExceptionClause *ec = &clauses [i];
3324 ec->flags = read32 (p);
3325 ec->try_offset = read32 (p + 4);
3326 ec->try_len = read32 (p + 8);
3327 ec->handler_offset = read32 (p + 12);
3328 ec->handler_len = read32 (p + 16);
3329 tof_value = read32 (p + 20);
3332 ec->flags = read16 (p);
3333 ec->try_offset = read16 (p + 2);
3334 ec->try_len = *(p + 4);
3335 ec->handler_offset = read16 (p + 5);
3336 ec->handler_len = *(p + 7);
3337 tof_value = read32 (p + 8);
3340 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3341 ec->data.filter_offset = tof_value;
3342 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3343 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
3345 ec->data.catch_class = NULL;
3347 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3351 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3352 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3359 * mono_method_get_header_summary:
3360 * @method: The method to get the header.
3361 * @summary: Where to store the header
3364 * Returns: true if the header was properly decoded.
3367 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3373 unsigned char flags, format;
3376 /*Only the GMD has a pointer to the metadata.*/
3377 while (method->is_inflated)
3378 method = ((MonoMethodInflated*)method)->declaring;
3380 summary->code_size = 0;
3381 summary->has_clauses = FALSE;
3383 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3384 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))
3387 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3388 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3391 summary->code_size = header->code_size;
3392 summary->has_clauses = header->num_clauses > 0;
3397 idx = mono_metadata_token_index (method->token);
3398 img = method->klass->image;
3399 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3401 /*We must run the verifier since we'll be decoding it.*/
3402 if (!mono_verifier_verify_method_header (img, rva, NULL))
3405 ptr = mono_image_rva_map (img, rva);
3408 flags = *(const unsigned char *)ptr;
3409 format = flags & METHOD_HEADER_FORMAT_MASK;
3412 case METHOD_HEADER_TINY_FORMAT:
3414 summary->code_size = flags >> 2;
3416 case METHOD_HEADER_FAT_FORMAT:
3417 fat_flags = read16 (ptr);
3419 summary->code_size = read32 (ptr);
3420 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3421 summary->has_clauses = TRUE;
3430 * mono_metadata_parse_mh_full:
3431 * @m: metadata context
3432 * @generic_context: generics context
3433 * @ptr: pointer to the method header.
3435 * Decode the method header at @ptr, including pointer to the IL code,
3436 * info about local variables and optional exception tables.
3437 * This is a Mono runtime internal function.
3439 * LOCKING: Acquires the loader lock.
3441 * Returns: a transient MonoMethodHeader allocated from the heap.
3444 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3446 MonoMethodHeader *mh;
3447 unsigned char flags = *(const unsigned char *) ptr;
3448 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3450 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3451 const unsigned char *code;
3452 MonoExceptionClause* clauses = NULL;
3453 int hsize, num_clauses = 0;
3454 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3455 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3457 g_return_val_if_fail (ptr != NULL, NULL);
3460 case METHOD_HEADER_TINY_FORMAT:
3461 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3464 mh->is_transient = TRUE;
3465 local_var_sig_tok = 0;
3466 mh->code_size = flags >> 2;
3467 mh->code = (unsigned char*)ptr;
3469 case METHOD_HEADER_FAT_FORMAT:
3470 fat_flags = read16 (ptr);
3472 hsize = (fat_flags >> 12) & 0xf;
3473 max_stack = read16 (ptr);
3475 code_size = read32 (ptr);
3477 local_var_sig_tok = read32 (ptr);
3480 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3485 code = (unsigned char*)ptr;
3487 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3491 * There are more sections
3493 ptr = (char*)code + code_size;
3499 if (local_var_sig_tok) {
3500 int idx = (local_var_sig_tok & 0xffffff)-1;
3501 if (idx >= t->rows || idx < 0)
3503 mono_metadata_decode_row (t, idx, cols, 1);
3505 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3508 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3509 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3510 if (local_var_sig_tok) {
3511 const char *locals_ptr;
3512 int len=0, i, bsize;
3514 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3515 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3516 if (*locals_ptr != 0x07)
3517 g_warning ("wrong signature for locals blob");
3519 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3520 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3521 mh->num_locals = len;
3522 for (i = 0; i < len; ++i) {
3523 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3524 MONO_PARSE_LOCAL, 0, TRUE, locals_ptr, &locals_ptr);
3525 if (!mh->locals [i]) {
3532 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3535 mh->code_size = code_size;
3536 mh->max_stack = max_stack;
3537 mh->is_transient = TRUE;
3538 mh->init_locals = init_locals;
3540 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3541 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3543 mh->clauses = clausesp;
3544 mh->num_clauses = num_clauses;
3550 * mono_metadata_parse_mh:
3551 * @generic_context: generics context
3552 * @ptr: pointer to the method header.
3554 * Decode the method header at @ptr, including pointer to the IL code,
3555 * info about local variables and optional exception tables.
3556 * This is a Mono runtime internal function.
3558 * Returns: a MonoMethodHeader.
3561 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3563 MonoMethodHeader *res;
3565 mono_loader_lock ();
3567 res = mono_metadata_parse_mh_full (m, NULL, ptr);
3569 mono_loader_unlock ();
3575 * mono_metadata_free_mh:
3576 * @mh: a method header
3578 * Free the memory allocated for the method header.
3581 mono_metadata_free_mh (MonoMethodHeader *mh)
3585 /* If it is not transient it means it's part of a wrapper method,
3586 * or a SRE-generated method, so the lifetime in that case is
3587 * dictated by the method's own lifetime
3589 if (mh->is_transient) {
3590 for (i = 0; i < mh->num_locals; ++i)
3591 mono_metadata_free_type (mh->locals [i]);
3597 * mono_method_header_get_code:
3598 * @header: a MonoMethodHeader pointer
3599 * @code_size: memory location for returning the code size
3600 * @max_stack: memory location for returning the max stack
3602 * Method header accessor to retreive info about the IL code properties:
3603 * a pointer to the IL code itself, the size of the code and the max number
3604 * of stack slots used by the code.
3606 * Returns: pointer to the IL code represented by the method header.
3608 const unsigned char*
3609 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3612 *code_size = header->code_size;
3614 *max_stack = header->max_stack;
3615 return header->code;
3619 * mono_method_header_get_locals:
3620 * @header: a MonoMethodHeader pointer
3621 * @num_locals: memory location for returning the number of local variables
3622 * @init_locals: memory location for returning the init_locals flag
3624 * Method header accessor to retreive info about the local variables:
3625 * an array of local types, the number of locals and whether the locals
3626 * are supposed to be initialized to 0 on method entry
3628 * Returns: pointer to an array of types of the local variables
3631 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3634 *num_locals = header->num_locals;
3636 *init_locals = header->init_locals;
3637 return header->locals;
3641 * mono_method_header_get_num_clauses:
3642 * @header: a MonoMethodHeader pointer
3644 * Method header accessor to retreive the number of exception clauses.
3646 * Returns: the number of exception clauses present
3649 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3651 return header->num_clauses;
3655 * mono_method_header_get_clauses:
3656 * @header: a MonoMethodHeader pointer
3657 * @method: MonoMethod the header belongs to
3658 * @iter: pointer to a iterator
3659 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3661 * Get the info about the exception clauses in the method. Set *iter to NULL to
3662 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3663 * At each iteration, the structure pointed to by clause if filled with the
3664 * exception clause information.
3666 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3670 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3672 MonoExceptionClause *sc;
3673 /* later we'll be able to use this interface to parse the clause info on demand,
3674 * without allocating anything.
3676 if (!iter || !header->num_clauses)
3679 *iter = sc = header->clauses;
3685 if (sc < header->clauses + header->num_clauses) {
3694 * mono_metadata_parse_field_type:
3695 * @m: metadata context to extract information from
3696 * @ptr: pointer to the field signature
3697 * @rptr: pointer updated to match the end of the decoded stream
3699 * Parses the field signature, and returns the type information for it.
3701 * Returns: The MonoType that was extracted from @ptr.
3704 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3706 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3710 * mono_metadata_parse_param:
3711 * @m: metadata context to extract information from
3712 * @ptr: pointer to the param signature
3713 * @rptr: pointer updated to match the end of the decoded stream
3715 * Parses the param signature, and returns the type information for it.
3717 * Returns: The MonoType that was extracted from @ptr.
3720 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3722 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3726 * mono_metadata_token_from_dor:
3727 * @dor_token: A TypeDefOrRef coded index
3729 * dor_token is a TypeDefOrRef coded index: it contains either
3730 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3731 * bits contain an index into the table.
3733 * Returns: an expanded token
3736 mono_metadata_token_from_dor (guint32 dor_index)
3740 table = dor_index & 0x03;
3741 idx = dor_index >> 2;
3744 case 0: /* TypeDef */
3745 return MONO_TOKEN_TYPE_DEF | idx;
3746 case 1: /* TypeRef */
3747 return MONO_TOKEN_TYPE_REF | idx;
3748 case 2: /* TypeSpec */
3749 return MONO_TOKEN_TYPE_SPEC | idx;
3751 g_assert_not_reached ();
3758 * We use this to pass context information to the row locator
3761 int idx; /* The index that we are trying to locate */
3762 int col_idx; /* The index in the row where idx may be stored */
3763 MonoTableInfo *t; /* pointer to the table */
3768 * How the row locator works.
3773 * ___|___------> _______
3776 * A column in the rows of table A references an index in table B.
3777 * For example A may be the TYPEDEF table and B the METHODDEF table.
3779 * Given an index in table B we want to get the row in table A
3780 * where the column n references our index in B.
3782 * In the locator_t structure:
3784 * col_idx is the column number
3785 * index is the index in table B
3786 * result will be the index in table A
3789 * Table A Table B column (in table A)
3790 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3791 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3792 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3793 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3794 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3796 * Note that we still don't support encoded indexes.
3800 typedef_locator (const void *a, const void *b)
3802 locator_t *loc = (locator_t *) a;
3803 const char *bb = (const char *) b;
3804 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3805 guint32 col, col_next;
3807 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3813 * Need to check that the next row is valid.
3815 if (typedef_index + 1 < loc->t->rows) {
3816 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3817 if (loc->idx >= col_next)
3820 if (col == col_next)
3824 loc->result = typedef_index;
3830 table_locator (const void *a, const void *b)
3832 locator_t *loc = (locator_t *) a;
3833 const char *bb = (const char *) b;
3834 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3837 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3839 if (loc->idx == col) {
3840 loc->result = table_index;
3850 declsec_locator (const void *a, const void *b)
3852 locator_t *loc = (locator_t *) a;
3853 const char *bb = (const char *) b;
3854 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3857 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3859 if (loc->idx == col) {
3860 loc->result = table_index;
3872 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
3873 * which contains IDX.
3876 search_ptr_table (MonoImage *image, int table, int idx)
3878 MonoTableInfo *ptrdef = &image->tables [table];
3881 /* Use a linear search to find our index in the table */
3882 for (i = 0; i < ptrdef->rows; i ++)
3883 /* All the Ptr tables have the same structure */
3884 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
3887 if (i < ptrdef->rows)
3894 * mono_metadata_typedef_from_field:
3895 * @meta: metadata context
3896 * @index: FieldDef token
3898 * Returns: the 1-based index into the TypeDef table of the type that
3899 * declared the field described by @index, or 0 if not found.
3902 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
3904 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3910 loc.idx = mono_metadata_token_index (index);
3911 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
3914 if (meta->uncompressed_metadata)
3915 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
3917 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3920 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3921 return loc.result + 1;
3925 * mono_metadata_typedef_from_method:
3926 * @meta: metadata context
3927 * @index: MethodDef token
3929 * Returns: the 1-based index into the TypeDef table of the type that
3930 * declared the method described by @index. 0 if not found.
3933 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
3935 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
3941 loc.idx = mono_metadata_token_index (index);
3942 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
3945 if (meta->uncompressed_metadata)
3946 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
3948 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
3951 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
3952 return loc.result + 1;
3956 * mono_metadata_interfaces_from_typedef_full:
3957 * @meta: metadata context
3958 * @index: typedef token
3959 * @interfaces: Out parameter used to store the interface array
3960 * @count: Out parameter used to store the number of interfaces
3961 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
3962 * @context: The generic context
3964 * The array of interfaces that the @index typedef token implements is returned in
3965 * @interfaces. The number of elements in the array is returned in @count.
3967 * LOCKING: Assumes the loader lock is held.
3969 * Returns: TRUE on success, FALSE on failure.
3972 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context)
3974 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
3977 guint32 cols [MONO_INTERFACEIMPL_SIZE];
3986 loc.idx = mono_metadata_token_index (index);
3987 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
3990 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3995 * We may end up in the middle of the rows...
3998 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4004 while (pos < tdef->rows) {
4005 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4006 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4011 if (heap_alloc_result)
4012 result = g_new0 (MonoClass*, pos - start);
4014 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4017 while (pos < tdef->rows) {
4020 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4021 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4023 iface = mono_class_get_full (
4024 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
4027 result [pos - start] = iface;
4030 *count = pos - start;
4031 *interfaces = result;
4036 * @meta: metadata context
4037 * @index: typedef token
4038 * @count: Out parameter used to store the number of interfaces
4040 * The array of interfaces that the @index typedef token implements is returned in
4041 * @interfaces. The number of elements in the array is returned in @count. The returned
4042 * array is g_malloc'd and the caller must free it.
4044 * LOCKING: Acquires the loader lock .
4046 * Returns: the interface array on success, NULL on failure.
4050 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4052 MonoClass **interfaces;
4055 mono_loader_lock ();
4056 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL);
4057 mono_loader_unlock ();
4065 * mono_metadata_nested_in_typedef:
4066 * @meta: metadata context
4067 * @index: typedef token
4069 * Returns: the 1-based index into the TypeDef table of the type
4070 * where the type described by @index is nested.
4071 * Retruns 0 if @index describes a non-nested type.
4074 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4076 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4082 loc.idx = mono_metadata_token_index (index);
4083 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4086 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4089 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4090 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4094 * mono_metadata_nesting_typedef:
4095 * @meta: metadata context
4096 * @index: typedef token
4098 * Returns: the 1-based index into the TypeDef table of the first type
4099 * that is nested inside the type described by @index. The search starts at
4100 * @start_index. returns 0 if no such type is found.
4103 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4105 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4107 guint32 class_index = mono_metadata_token_index (index);
4112 start = start_index;
4114 while (start <= tdef->rows) {
4115 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4121 if (start > tdef->rows)
4128 * mono_metadata_packing_from_typedef:
4129 * @meta: metadata context
4130 * @index: token representing a type
4132 * Returns: the info stored in the ClassLAyout table for the given typedef token
4133 * into the @packing and @size pointers.
4134 * Returns 0 if the info is not found.
4137 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4139 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4141 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4146 loc.idx = mono_metadata_token_index (index);
4147 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4150 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4153 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4155 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4157 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4159 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4160 return loc.result + 1;
4164 * mono_metadata_custom_attrs_from_index:
4165 * @meta: metadata context
4166 * @index: token representing the parent
4168 * Returns: the 1-based index into the CustomAttribute table of the first
4169 * attribute which belongs to the metadata object described by @index.
4170 * Returns 0 if no such attribute is found.
4173 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4175 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4182 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4185 /* FIXME: Index translation */
4187 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4190 /* Find the first entry by searching backwards */
4191 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4194 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4195 return loc.result + 1;
4199 * mono_metadata_declsec_from_index:
4200 * @meta: metadata context
4201 * @index: token representing the parent
4203 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4204 * attribute which belongs to the metadata object described by @index.
4205 * Returns -1 if no such attribute is found.
4208 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4210 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4217 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4220 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4223 /* Find the first entry by searching backwards */
4224 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4232 mono_backtrace (int limit)
4237 backtrace (array, limit);
4238 names = backtrace_symbols (array, limit);
4239 for (i =0; i < limit; ++i) {
4240 g_print ("\t%s\n", names [i]);
4247 /*#define __alignof__(a) sizeof(a)*/
4248 #define __alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
4253 * @t: the type to return the size of
4255 * Returns: the number of bytes required to hold an instance of this
4259 mono_type_size (MonoType *t, int *align)
4266 *align = __alignof__(gpointer);
4267 return sizeof (gpointer);
4271 case MONO_TYPE_VOID:
4274 case MONO_TYPE_BOOLEAN:
4275 *align = __alignof__(gint8);
4279 *align = __alignof__(gint8);
4281 case MONO_TYPE_CHAR:
4284 *align = __alignof__(gint16);
4288 *align = __alignof__(gint32);
4291 *align = __alignof__(float);
4295 *align = __alignof__(gint64);
4298 *align = __alignof__(double);
4302 *align = __alignof__(gpointer);
4303 return sizeof (gpointer);
4304 case MONO_TYPE_STRING:
4305 *align = __alignof__(gpointer);
4306 return sizeof (gpointer);
4307 case MONO_TYPE_OBJECT:
4308 *align = __alignof__(gpointer);
4309 return sizeof (gpointer);
4310 case MONO_TYPE_VALUETYPE: {
4311 if (t->data.klass->enumtype)
4312 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4314 return mono_class_value_size (t->data.klass, (guint32*)align);
4316 case MONO_TYPE_CLASS:
4317 case MONO_TYPE_SZARRAY:
4319 case MONO_TYPE_FNPTR:
4320 case MONO_TYPE_ARRAY:
4321 *align = __alignof__(gpointer);
4322 return sizeof (gpointer);
4323 case MONO_TYPE_TYPEDBYREF:
4324 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4325 case MONO_TYPE_GENERICINST: {
4326 MonoGenericClass *gclass = t->data.generic_class;
4327 MonoClass *container_class = gclass->container_class;
4329 // g_assert (!gclass->inst->is_open);
4331 if (container_class->valuetype) {
4332 if (container_class->enumtype)
4333 return mono_type_size (mono_class_enum_basetype (container_class), align);
4335 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4337 *align = __alignof__(gpointer);
4338 return sizeof (gpointer);
4342 case MONO_TYPE_MVAR:
4343 /* FIXME: Martin, this is wrong. */
4344 *align = __alignof__(gpointer);
4345 return sizeof (gpointer);
4347 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4353 * mono_type_stack_size:
4354 * @t: the type to return the size it uses on the stack
4356 * Returns: the number of bytes required to hold an instance of this
4357 * type on the runtime stack
4360 mono_type_stack_size (MonoType *t, int *align)
4362 return mono_type_stack_size_internal (t, align, FALSE);
4366 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4369 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4370 int stack_slot_size = sizeof (gpointer);
4371 int stack_slot_align = __alignof__ (gpointer);
4372 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4373 int stack_slot_size = SIZEOF_REGISTER;
4374 int stack_slot_align = SIZEOF_REGISTER;
4377 g_assert (t != NULL);
4383 *align = stack_slot_align;
4384 return stack_slot_size;
4388 case MONO_TYPE_BOOLEAN:
4389 case MONO_TYPE_CHAR:
4398 case MONO_TYPE_STRING:
4399 case MONO_TYPE_OBJECT:
4400 case MONO_TYPE_CLASS:
4401 case MONO_TYPE_SZARRAY:
4403 case MONO_TYPE_FNPTR:
4404 case MONO_TYPE_ARRAY:
4405 *align = stack_slot_align;
4406 return stack_slot_size;
4408 case MONO_TYPE_MVAR:
4409 g_assert (allow_open);
4410 *align = stack_slot_align;
4411 return stack_slot_size;
4412 case MONO_TYPE_TYPEDBYREF:
4413 *align = stack_slot_align;
4414 return stack_slot_size * 3;
4416 *align = __alignof__(float);
4417 return sizeof (float);
4420 *align = __alignof__(gint64);
4421 return sizeof (gint64);
4423 *align = __alignof__(double);
4424 return sizeof (double);
4425 case MONO_TYPE_VALUETYPE: {
4428 if (t->data.klass->enumtype)
4429 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4431 size = mono_class_value_size (t->data.klass, (guint32*)align);
4433 *align = *align + stack_slot_align - 1;
4434 *align &= ~(stack_slot_align - 1);
4436 size += stack_slot_size - 1;
4437 size &= ~(stack_slot_size - 1);
4442 case MONO_TYPE_GENERICINST: {
4443 MonoGenericClass *gclass = t->data.generic_class;
4444 MonoClass *container_class = gclass->container_class;
4447 g_assert (!gclass->context.class_inst->is_open);
4449 if (container_class->valuetype) {
4450 if (container_class->enumtype)
4451 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4453 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4455 *align = *align + stack_slot_align - 1;
4456 *align &= ~(stack_slot_align - 1);
4458 size += stack_slot_size - 1;
4459 size &= ~(stack_slot_size - 1);
4464 *align = stack_slot_align;
4465 return stack_slot_size;
4469 g_error ("type 0x%02x unknown", t->type);
4475 mono_type_generic_inst_is_valuetype (MonoType *type)
4477 g_assert (type->type == MONO_TYPE_GENERICINST);
4478 return type->data.generic_class->container_class->valuetype;
4482 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4484 return gclass->container_class->valuetype;
4488 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4490 MonoGenericInst *i1 = g1->context.class_inst;
4491 MonoGenericInst *i2 = g2->context.class_inst;
4493 if (g1->is_dynamic != g2->is_dynamic)
4495 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4497 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4499 return g1->is_tb_open == g2->is_tb_open;
4503 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4505 MonoGenericInst *i1 = g1->context.class_inst;
4506 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4508 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4510 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4512 return !g1->is_tb_open;
4516 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4518 /* FIXME: check if this seed is good enough */
4519 guint hash = 0xc01dfee7;
4520 if (context->class_inst)
4521 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4522 if (context->method_inst)
4523 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4528 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4530 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4534 * mono_metadata_str_hash:
4536 * This should be used instead of g_str_hash for computing hash codes visible
4537 * outside this module, since g_str_hash () is not guaranteed to be stable
4538 * (its not the same in eglib for example).
4541 mono_metadata_str_hash (gconstpointer v1)
4543 /* Same as g_str_hash () in glib */
4544 char *p = (char *) v1;
4549 hash = (hash << 5) - hash + *p;
4556 * mono_metadata_type_hash:
4559 * Computes an hash value for @t1 to be used in GHashTable.
4560 * The returned hash is guaranteed to be the same across executions.
4563 mono_metadata_type_hash (MonoType *t1)
4565 guint hash = t1->type;
4567 hash |= t1->byref << 6; /* do not collide with t1->type values */
4569 case MONO_TYPE_VALUETYPE:
4570 case MONO_TYPE_CLASS:
4571 case MONO_TYPE_SZARRAY: {
4572 MonoClass *class = t1->data.klass;
4574 * Dynamic classes must not be hashed on their type since it can change
4575 * during runtime. For example, if we hash a reference type that is
4576 * later made into a valuetype.
4578 * This is specially problematic with generic instances since they are
4579 * inserted in a bunch of hash tables before been finished.
4581 if (class->image->dynamic)
4582 return (t1->byref << 6) | mono_metadata_str_hash (class->name);
4583 return ((hash << 5) - hash) ^ mono_metadata_str_hash (class->name);
4586 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4587 case MONO_TYPE_ARRAY:
4588 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4589 case MONO_TYPE_GENERICINST:
4590 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4596 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4600 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4604 * We have to compare the image as well because if we didn't,
4605 * the generic_inst_cache lookup wouldn't care about the image
4606 * of generic params, so what could happen is that a generic
4607 * inst with params from image A is put into the cache, then
4608 * image B gets that generic inst from the cache, image A is
4609 * unloaded, so the inst is deleted, but image B still retains
4612 * The AOT runtime doesn't set the image when it's decoding
4613 * types, so we only compare it when the owner is NULL.
4615 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4616 (mono_generic_param_owner (p1) || p1->image == p2->image))
4620 * If `signature_only' is true, we're comparing two (method) signatures.
4621 * In this case, the owner of two type parameters doesn't need to match.
4624 return signature_only;
4628 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4632 if (c1->generic_class && c2->generic_class)
4633 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4634 if (c1->generic_class && c2->generic_container)
4635 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4636 if (c1->generic_container && c2->generic_class)
4637 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4638 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4639 return mono_metadata_generic_param_equal (
4640 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4641 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4642 return mono_metadata_generic_param_equal (
4643 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4644 if (signature_only &&
4645 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4646 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4651 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4653 gpointer iter1 = 0, iter2 = 0;
4657 if (s1->call_convention != s2->call_convention)
4659 if (s1->sentinelpos != s2->sentinelpos)
4661 if (s1->hasthis != s2->hasthis)
4663 if (s1->explicit_this != s2->explicit_this)
4665 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4667 if (s1->param_count != s2->param_count)
4671 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4672 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4674 if (t1 == NULL || t2 == NULL)
4676 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4682 * mono_metadata_type_equal:
4686 * Determine if @t1 and @t2 represent the same type.
4687 * Returns: #TRUE if @t1 and @t2 are equal.
4690 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4692 if (t1->type != t2->type || t1->byref != t2->byref)
4696 case MONO_TYPE_VOID:
4697 case MONO_TYPE_BOOLEAN:
4698 case MONO_TYPE_CHAR:
4709 case MONO_TYPE_STRING:
4712 case MONO_TYPE_OBJECT:
4713 case MONO_TYPE_TYPEDBYREF:
4715 case MONO_TYPE_VALUETYPE:
4716 case MONO_TYPE_CLASS:
4717 case MONO_TYPE_SZARRAY:
4718 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4720 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4721 case MONO_TYPE_ARRAY:
4722 if (t1->data.array->rank != t2->data.array->rank)
4724 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4725 case MONO_TYPE_GENERICINST:
4726 return _mono_metadata_generic_class_equal (
4727 t1->data.generic_class, t2->data.generic_class, signature_only);
4729 return mono_metadata_generic_param_equal (
4730 t1->data.generic_param, t2->data.generic_param, signature_only);
4731 case MONO_TYPE_MVAR:
4732 return mono_metadata_generic_param_equal (
4733 t1->data.generic_param, t2->data.generic_param, signature_only);
4734 case MONO_TYPE_FNPTR:
4735 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4737 g_error ("implement type compare for %0x!", t1->type);
4745 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
4747 return do_mono_metadata_type_equal (t1, t2, FALSE);
4751 * mono_metadata_type_equal_full:
4754 * @signature_only: if signature only comparison should be made
4756 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
4757 * behaves the same way as mono_metadata_type_equal.
4758 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
4759 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
4762 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
4764 return do_mono_metadata_type_equal (t1, t2, signature_only);
4768 * mono_metadata_signature_equal:
4769 * @sig1: a signature
4770 * @sig2: another signature
4772 * Determine if @sig1 and @sig2 represent the same signature, with the
4773 * same number of arguments and the same types.
4774 * Returns: #TRUE if @sig1 and @sig2 are equal.
4777 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
4781 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
4784 if (sig1->generic_param_count != sig2->generic_param_count)
4788 * We're just comparing the signatures of two methods here:
4790 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
4791 * U and V are equal here.
4793 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
4796 for (i = 0; i < sig1->param_count; i++) {
4797 MonoType *p1 = sig1->params[i];
4798 MonoType *p2 = sig2->params[i];
4800 /* if (p1->attrs != p2->attrs)
4803 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
4807 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
4813 * mono_metadata_type_dup:
4814 * @image: image to alloc memory from
4815 * @original: type to duplicate
4817 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
4820 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
4823 int sizeof_o = MONO_SIZEOF_TYPE;
4825 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
4827 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
4829 memcpy (r, o, sizeof_o);
4831 if (o->type == MONO_TYPE_PTR) {
4832 r->data.type = mono_metadata_type_dup (image, o->data.type);
4833 } else if (o->type == MONO_TYPE_ARRAY) {
4834 r->data.array = mono_dup_array_type (image, o->data.array);
4835 } else if (o->type == MONO_TYPE_FNPTR) {
4836 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
4837 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
4843 mono_signature_hash (MonoMethodSignature *sig)
4845 guint i, res = sig->ret->type;
4847 for (i = 0; i < sig->param_count; i++)
4848 res = (res << 5) - res + mono_type_hash (sig->params[i]);
4854 * mono_metadata_encode_value:
4855 * @value: value to encode
4856 * @buf: buffer where to write the compressed representation
4857 * @endbuf: pointer updated to point at the end of the encoded output
4859 * Encodes the value @value in the compressed representation used
4860 * in metadata and stores the result in @buf. @buf needs to be big
4861 * enough to hold the data (4 bytes).
4864 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
4870 else if (value < 0x4000) {
4871 p [0] = 0x80 | (value >> 8);
4872 p [1] = value & 0xff;
4875 p [0] = (value >> 24) | 0xc0;
4876 p [1] = (value >> 16) & 0xff;
4877 p [2] = (value >> 8) & 0xff;
4878 p [3] = value & 0xff;
4886 * mono_metadata_field_info:
4887 * @meta: the Image the field is defined in
4888 * @index: the index in the field table representing the field
4889 * @offset: a pointer to an integer where to store the offset that
4890 * may have been specified for the field in a FieldLayout table
4891 * @rva: a pointer to the RVA of the field data in the image that
4892 * may have been defined in a FieldRVA table
4893 * @marshal_spec: a pointer to the marshal spec that may have been
4894 * defined for the field in a FieldMarshal table.
4896 * Gather info for field @index that may have been defined in the FieldLayout,
4897 * FieldRVA and FieldMarshal tables.
4898 * Either of offset, rva and marshal_spec can be NULL if you're not interested
4902 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4903 MonoMarshalSpec **marshal_spec)
4905 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
4909 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4910 MonoMarshalSpec **marshal_spec)
4912 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
4916 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
4917 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
4919 MonoTableInfo *tdef;
4922 loc.idx = index + 1;
4923 if (meta->uncompressed_metadata)
4924 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4927 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
4929 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
4932 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4933 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
4935 *offset = (guint32)-1;
4939 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
4941 loc.col_idx = MONO_FIELD_RVA_FIELD;
4944 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
4946 * LAMESPEC: There is no signature, no nothing, just the raw data.
4948 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
4956 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
4957 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, p);
4964 * mono_metadata_get_constant_index:
4965 * @meta: the Image the field is defined in
4966 * @index: the token that may have a row defined in the constants table
4967 * @hint: possible position for the row
4969 * @token must be a FieldDef, ParamDef or PropertyDef token.
4971 * Returns: the index into the Constants table or 0 if not found.
4974 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
4976 MonoTableInfo *tdef;
4978 guint32 index = mono_metadata_token_index (token);
4980 tdef = &meta->tables [MONO_TABLE_CONSTANT];
4981 index <<= MONO_HASCONSTANT_BITS;
4982 switch (mono_metadata_token_table (token)) {
4983 case MONO_TABLE_FIELD:
4984 index |= MONO_HASCONSTANT_FIEDDEF;
4986 case MONO_TABLE_PARAM:
4987 index |= MONO_HASCONSTANT_PARAM;
4989 case MONO_TABLE_PROPERTY:
4990 index |= MONO_HASCONSTANT_PROPERTY;
4993 g_warning ("Not a valid token for the constant table: 0x%08x", token);
4997 loc.col_idx = MONO_CONSTANT_PARENT;
5000 /* FIXME: Index translation */
5002 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5005 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5006 return loc.result + 1;
5012 * mono_metadata_events_from_typedef:
5013 * @meta: metadata context
5014 * @index: 0-based index (in the TypeDef table) describing a type
5016 * Returns: the 0-based index in the Event table for the events in the
5017 * type. The last event that belongs to the type (plus 1) is stored
5018 * in the @end_idx pointer.
5021 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5025 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5033 loc.col_idx = MONO_EVENT_MAP_PARENT;
5034 loc.idx = index + 1;
5036 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5039 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5040 if (loc.result + 1 < tdef->rows) {
5041 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5043 end = meta->tables [MONO_TABLE_EVENT].rows;
5051 * mono_metadata_methods_from_event:
5052 * @meta: metadata context
5053 * @index: 0-based index (in the Event table) describing a event
5055 * Returns: the 0-based index in the MethodDef table for the methods in the
5056 * event. The last method that belongs to the event (plus 1) is stored
5057 * in the @end_idx pointer.
5060 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5064 guint32 cols [MONO_METHOD_SEMA_SIZE];
5065 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5071 if (meta->uncompressed_metadata)
5072 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5075 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5076 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5078 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5083 * We may end up in the middle of the rows...
5086 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5092 while (end < msemt->rows) {
5093 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5094 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5103 * mono_metadata_properties_from_typedef:
5104 * @meta: metadata context
5105 * @index: 0-based index (in the TypeDef table) describing a type
5107 * Returns: the 0-based index in the Property table for the properties in the
5108 * type. The last property that belongs to the type (plus 1) is stored
5109 * in the @end_idx pointer.
5112 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5116 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5124 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5125 loc.idx = index + 1;
5127 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5130 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5131 if (loc.result + 1 < tdef->rows) {
5132 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5134 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5142 * mono_metadata_methods_from_property:
5143 * @meta: metadata context
5144 * @index: 0-based index (in the PropertyDef table) describing a property
5146 * Returns: the 0-based index in the MethodDef table for the methods in the
5147 * property. The last method that belongs to the property (plus 1) is stored
5148 * in the @end_idx pointer.
5151 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5155 guint32 cols [MONO_METHOD_SEMA_SIZE];
5156 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5162 if (meta->uncompressed_metadata)
5163 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5166 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5167 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5169 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5174 * We may end up in the middle of the rows...
5177 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5183 while (end < msemt->rows) {
5184 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5185 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5194 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5197 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5202 /* No index translation seems to be needed */
5205 loc.col_idx = MONO_IMPLMAP_MEMBER;
5206 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5208 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5211 return loc.result + 1;
5215 * @image: context where the image is created
5216 * @type_spec: typespec token
5218 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5222 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5224 guint32 idx = mono_metadata_token_index (type_spec);
5226 guint32 cols [MONO_TYPESPEC_SIZE];
5229 MonoType *type, *type2;
5230 MonoType stack_type;
5232 mono_loader_lock ();
5234 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5236 mono_loader_unlock ();
5240 t = &image->tables [MONO_TABLE_TYPESPEC];
5242 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5243 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5245 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5246 mono_loader_unlock ();
5250 len = mono_metadata_decode_value (ptr, &ptr);
5253 memset (type, 0, MONO_SIZEOF_TYPE);
5255 if (*ptr == MONO_TYPE_BYREF) {
5260 if (!do_mono_metadata_parse_type (type, image, NULL, FALSE, ptr, &ptr)) {
5261 mono_loader_unlock ();
5265 type2 = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5268 mono_loader_unlock ();
5272 type2 = mono_image_alloc (image, MONO_SIZEOF_TYPE);
5273 memcpy (type2, type, MONO_SIZEOF_TYPE);
5274 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5276 mono_loader_unlock ();
5283 mono_image_strndup (MonoImage *image, const char *data, guint len)
5287 return g_strndup (data, len);
5288 res = mono_image_alloc (image, len + 1);
5289 memcpy (res, data, len);
5295 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5297 return mono_metadata_parse_marshal_spec_full (NULL, ptr);
5301 mono_metadata_parse_marshal_spec_full (MonoImage *image, const char *ptr)
5303 MonoMarshalSpec *res;
5305 const char *start = ptr;
5307 /* fixme: this is incomplete, but I cant find more infos in the specs */
5310 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5312 res = g_new0 (MonoMarshalSpec, 1);
5314 len = mono_metadata_decode_value (ptr, &ptr);
5315 res->native = *ptr++;
5317 if (res->native == MONO_NATIVE_LPARRAY) {
5318 res->data.array_data.param_num = -1;
5319 res->data.array_data.num_elem = -1;
5320 res->data.array_data.elem_mult = -1;
5322 if (ptr - start <= len)
5323 res->data.array_data.elem_type = *ptr++;
5324 if (ptr - start <= len)
5325 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5326 if (ptr - start <= len)
5327 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5328 if (ptr - start <= len) {
5330 * LAMESPEC: Older spec versions say this parameter comes before
5331 * num_elem. Never spec versions don't talk about elem_mult at
5332 * all, but csc still emits it, and it is used to distinguish
5333 * between param_num being 0, and param_num being omitted.
5334 * So if (param_num == 0) && (num_elem > 0), then
5335 * elem_mult == 0 -> the array size is num_elem
5336 * elem_mult == 1 -> the array size is @param_num + num_elem
5338 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5342 if (res->native == MONO_NATIVE_BYVALTSTR) {
5343 if (ptr - start <= len)
5344 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5347 if (res->native == MONO_NATIVE_BYVALARRAY) {
5348 if (ptr - start <= len)
5349 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5352 if (res->native == MONO_NATIVE_CUSTOM) {
5353 /* skip unused type guid */
5354 len = mono_metadata_decode_value (ptr, &ptr);
5356 /* skip unused native type name */
5357 len = mono_metadata_decode_value (ptr, &ptr);
5359 /* read custom marshaler type name */
5360 len = mono_metadata_decode_value (ptr, &ptr);
5361 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5363 /* read cookie string */
5364 len = mono_metadata_decode_value (ptr, &ptr);
5365 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5368 if (res->native == MONO_NATIVE_SAFEARRAY) {
5369 res->data.safearray_data.elem_type = 0;
5370 res->data.safearray_data.num_elem = 0;
5371 if (ptr - start <= len)
5372 res->data.safearray_data.elem_type = *ptr++;
5373 if (ptr - start <= len)
5374 res->data.safearray_data.num_elem = *ptr++;
5380 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5382 if (spec->native == MONO_NATIVE_CUSTOM) {
5383 g_free (spec->data.custom_data.custom_name);
5384 g_free (spec->data.custom_data.cookie);
5390 * mono_type_to_unmanaged:
5392 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5393 * describing the underlying native reprensetation of the type.
5395 * In addition the value pointed by
5396 * "conv" will contain the kind of marshalling required for this
5397 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5400 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5401 gboolean unicode, MonoMarshalConv *conv)
5403 MonoMarshalConv dummy_conv;
5409 *conv = MONO_MARSHAL_CONV_NONE;
5412 return MONO_NATIVE_UINT;
5416 case MONO_TYPE_BOOLEAN:
5418 switch (mspec->native) {
5419 case MONO_NATIVE_VARIANTBOOL:
5420 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5421 return MONO_NATIVE_VARIANTBOOL;
5422 case MONO_NATIVE_BOOLEAN:
5423 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5424 return MONO_NATIVE_BOOLEAN;
5425 case MONO_NATIVE_I1:
5426 case MONO_NATIVE_U1:
5427 return mspec->native;
5429 g_error ("cant marshal bool to native type %02x", mspec->native);
5432 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5433 return MONO_NATIVE_BOOLEAN;
5434 case MONO_TYPE_CHAR: return MONO_NATIVE_U2;
5435 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5436 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5437 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5438 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5439 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5440 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5441 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5442 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5443 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5444 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5445 case MONO_TYPE_STRING:
5447 switch (mspec->native) {
5448 case MONO_NATIVE_BSTR:
5449 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5450 return MONO_NATIVE_BSTR;
5451 case MONO_NATIVE_LPSTR:
5452 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5453 return MONO_NATIVE_LPSTR;
5454 case MONO_NATIVE_LPWSTR:
5455 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5456 return MONO_NATIVE_LPWSTR;
5457 case MONO_NATIVE_LPTSTR:
5458 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5459 return MONO_NATIVE_LPTSTR;
5460 case MONO_NATIVE_ANSIBSTR:
5461 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5462 return MONO_NATIVE_ANSIBSTR;
5463 case MONO_NATIVE_TBSTR:
5464 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5465 return MONO_NATIVE_TBSTR;
5466 case MONO_NATIVE_BYVALTSTR:
5468 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5470 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5471 return MONO_NATIVE_BYVALTSTR;
5473 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);
5477 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5478 return MONO_NATIVE_LPWSTR;
5481 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5482 return MONO_NATIVE_LPSTR;
5484 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5485 case MONO_TYPE_VALUETYPE: /*FIXME*/
5486 if (type->data.klass->enumtype) {
5487 t = mono_class_enum_basetype (type->data.klass)->type;
5490 if (type->data.klass == mono_defaults.handleref_class){
5491 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5492 return MONO_NATIVE_INT;
5494 return MONO_NATIVE_STRUCT;
5495 case MONO_TYPE_SZARRAY:
5496 case MONO_TYPE_ARRAY:
5498 switch (mspec->native) {
5499 case MONO_NATIVE_BYVALARRAY:
5500 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5501 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5503 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5504 return MONO_NATIVE_BYVALARRAY;
5505 case MONO_NATIVE_SAFEARRAY:
5506 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5507 return MONO_NATIVE_SAFEARRAY;
5508 case MONO_NATIVE_LPARRAY:
5509 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5510 return MONO_NATIVE_LPARRAY;
5512 g_error ("cant marshal array as native type %02x", mspec->native);
5516 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5517 return MONO_NATIVE_LPARRAY;
5518 case MONO_TYPE_I: return MONO_NATIVE_INT;
5519 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5520 case MONO_TYPE_CLASS:
5521 case MONO_TYPE_OBJECT: {
5522 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5524 switch (mspec->native) {
5525 case MONO_NATIVE_STRUCT:
5526 return MONO_NATIVE_STRUCT;
5527 case MONO_NATIVE_CUSTOM:
5528 return MONO_NATIVE_CUSTOM;
5529 case MONO_NATIVE_INTERFACE:
5530 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5531 return MONO_NATIVE_INTERFACE;
5532 case MONO_NATIVE_IDISPATCH:
5533 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5534 return MONO_NATIVE_IDISPATCH;
5535 case MONO_NATIVE_IUNKNOWN:
5536 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5537 return MONO_NATIVE_IUNKNOWN;
5538 case MONO_NATIVE_FUNC:
5539 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5540 type->data.klass == mono_defaults.delegate_class ||
5541 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5542 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5543 return MONO_NATIVE_FUNC;
5547 g_error ("cant marshal object as native type %02x", mspec->native);
5550 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5551 type->data.klass == mono_defaults.delegate_class ||
5552 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5553 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5554 return MONO_NATIVE_FUNC;
5556 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5557 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5558 return MONO_NATIVE_INT;
5560 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5561 return MONO_NATIVE_STRUCT;
5563 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5564 case MONO_TYPE_GENERICINST:
5565 type = &type->data.generic_class->container_class->byval_arg;
5568 case MONO_TYPE_TYPEDBYREF:
5570 g_error ("type 0x%02x not handled in marshal", t);
5572 return MONO_NATIVE_MAX;
5576 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5579 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5585 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5586 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5588 /* FIXME: Index translation */
5590 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5593 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5597 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
5599 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5601 switch (tok & MONO_METHODDEFORREF_MASK) {
5602 case MONO_METHODDEFORREF_METHODDEF:
5603 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
5604 case MONO_METHODDEFORREF_METHODREF:
5605 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
5607 g_assert_not_reached ();
5612 * mono_class_get_overrides_full:
5614 * Return the method overrides belonging to class @type_token in @overrides, and
5615 * the number of overrides in @num_overrides.
5617 * Returns: TRUE on success, FALSE on failure.
5620 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5621 MonoGenericContext *generic_context)
5625 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5628 guint32 cols [MONO_METHODIMPL_SIZE];
5629 MonoMethod **result;
5640 loc.col_idx = MONO_METHODIMPL_CLASS;
5641 loc.idx = mono_metadata_token_index (type_token);
5643 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5649 * We may end up in the middle of the rows...
5652 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5657 while (end < tdef->rows) {
5658 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5664 result = g_new (MonoMethod*, num * 2);
5665 for (i = 0; i < num; ++i) {
5668 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
5669 mono_error_cleanup (&error);
5674 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5675 method = method_from_method_def_or_ref (
5676 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
5679 result [i * 2] = method;
5680 method = method_from_method_def_or_ref (
5681 image, cols [MONO_METHODIMPL_BODY], generic_context);
5684 result [i * 2 + 1] = method;
5687 *overrides = result;
5689 *num_overrides = num;
5694 * mono_guid_to_string:
5696 * Converts a 16 byte Microsoft GUID to the standard string representation.
5699 mono_guid_to_string (const guint8 *guid)
5701 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5702 guid[3], guid[2], guid[1], guid[0],
5706 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
5710 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
5712 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
5713 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
5714 guint32 i, token, found;
5715 MonoClass *klass, **res;
5716 GSList *cons = NULL, *tmp;
5717 MonoGenericContext *context = &container->context;
5719 *constraints = NULL;
5721 for (i = 0; i < tdef->rows; ++i) {
5722 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
5723 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
5724 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
5725 klass = mono_class_get_full (image, token, context);
5727 g_slist_free (cons);
5730 cons = g_slist_append (cons, klass);
5733 /* contiguous list finished */
5740 res = g_new0 (MonoClass*, found + 1);
5741 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
5742 res [i] = tmp->data;
5744 g_slist_free (cons);
5750 * mono_metadata_get_generic_param_row:
5753 * @token: TypeOrMethodDef token, owner for GenericParam
5754 * @owner: coded token, set on return
5756 * Returns: 1-based row-id in the GenericParam table whose
5757 * owner is @token. 0 if not found.
5760 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
5762 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5769 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
5770 *owner = MONO_TYPEORMETHOD_TYPE;
5771 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5772 *owner = MONO_TYPEORMETHOD_METHOD;
5774 g_error ("wrong token %x to get_generic_param_row", token);
5777 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
5780 loc.col_idx = MONO_GENERICPARAM_OWNER;
5783 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5786 /* Find the first entry by searching backwards */
5787 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
5790 return loc.result + 1;
5794 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
5797 return mono_metadata_get_generic_param_row (image, token, &owner);
5801 mono_metadata_load_generic_param_constraints_full (MonoImage *image, guint32 token,
5802 MonoGenericContainer *container)
5805 guint32 start_row, i, owner;
5806 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
5808 for (i = 0; i < container->type_argc; i++) {
5809 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container))
5816 * mono_metadata_load_generic_param_constraints:
5818 * @image: metadata context
5819 * @token: metadata token to load the contraints, can be methodef or typedef.
5820 * @container: generic container to load into.
5822 * Load the generic parameter constraints for the newly created generic type or method
5823 * represented by @token and @container. The @container is the new container which has
5824 * been returned by a call to mono_metadata_load_generic_params() with this @token.
5827 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
5828 MonoGenericContainer *container)
5830 mono_metadata_load_generic_param_constraints_full (image, token, container);
5831 /*FIXME this function can potentially exit with a pending loader error and cause all sort of havok */
5835 * mono_metadata_load_generic_params:
5837 * Load the type parameters from the type or method definition @token.
5839 * Use this method after parsing a type or method definition to figure out whether it's a generic
5840 * type / method. When parsing a method definition, @parent_container points to the generic container
5841 * of the current class, if any.
5843 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
5844 * creating the type.
5846 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
5848 * LOCKING: Acquires the loader lock
5851 MonoGenericContainer *
5852 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
5854 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
5855 guint32 cols [MONO_GENERICPARAM_SIZE];
5856 guint32 i, owner = 0, n;
5857 MonoGenericContainer *container;
5858 MonoGenericParamFull *params;
5859 MonoGenericContext *context;
5861 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
5863 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5866 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
5867 container->image = image;
5870 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
5871 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
5872 params [n - 1].param.owner = container;
5873 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
5874 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
5875 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
5876 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
5877 if (params [n - 1].param.num != n - 1)
5878 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
5879 if (++i > tdef->rows)
5881 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
5882 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
5884 container->type_argc = n;
5885 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
5886 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
5888 container->parent = parent_container;
5890 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
5891 container->is_method = 1;
5893 g_assert (container->parent == NULL || container->is_method);
5895 context = &container->context;
5896 if (container->is_method) {
5897 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
5898 context->method_inst = mono_get_shared_generic_inst (container);
5900 context->class_inst = mono_get_shared_generic_inst (container);
5907 mono_get_shared_generic_inst (MonoGenericContainer *container)
5909 MonoType **type_argv;
5911 MonoGenericInst *nginst;
5914 type_argv = g_new0 (MonoType *, container->type_argc);
5915 helper = g_new0 (MonoType, container->type_argc);
5917 for (i = 0; i < container->type_argc; i++) {
5918 MonoType *t = &helper [i];
5920 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
5921 t->data.generic_param = mono_generic_container_get_param (container, i);
5926 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
5935 * mono_type_is_byref:
5936 * @type: the MonoType operated on
5938 * Returns: #TRUE if @type represents a type passed by reference,
5942 mono_type_is_byref (MonoType *type)
5948 * mono_type_get_type:
5949 * @type: the MonoType operated on
5951 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
5952 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
5955 mono_type_get_type (MonoType *type)
5961 * mono_type_get_signature:
5962 * @type: the MonoType operated on
5964 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
5966 * Returns: the MonoMethodSignature pointer that describes the signature
5967 * of the function pointer @type represents.
5969 MonoMethodSignature*
5970 mono_type_get_signature (MonoType *type)
5972 g_assert (type->type == MONO_TYPE_FNPTR);
5973 return type->data.method;
5977 * mono_type_get_class:
5978 * @type: the MonoType operated on
5980 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
5981 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
5984 * Returns: the MonoClass pointer that describes the class that @type represents.
5987 mono_type_get_class (MonoType *type)
5989 /* FIXME: review the runtime users before adding the assert here */
5990 return type->data.klass;
5994 * mono_type_get_array_type:
5995 * @type: the MonoType operated on
5997 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
5999 * Returns: a MonoArrayType struct describing the array type that @type
6000 * represents. The info includes details such as rank, array element type
6001 * and the sizes and bounds of multidimensional arrays.
6004 mono_type_get_array_type (MonoType *type)
6006 return type->data.array;
6010 * mono_type_get_ptr_type:
6011 * @type: the MonoType operated on
6013 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6016 * Returns: the MonoType pointer that describes the type that @type
6017 * represents a pointer to.
6020 mono_type_get_ptr_type (MonoType *type)
6022 g_assert (type->type == MONO_TYPE_PTR);
6023 return type->data.type;
6027 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6029 /* FIXME: implement */
6034 * mono_type_is_struct:
6035 * @type: the MonoType operated on
6037 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6038 * or a basic type like System.Int32. #FALSE otherwise.
6041 mono_type_is_struct (MonoType *type)
6043 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6044 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6045 ((type->type == MONO_TYPE_GENERICINST) &&
6046 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6047 !type->data.generic_class->container_class->enumtype)));
6051 * mono_type_is_void:
6052 * @type: the MonoType operated on
6054 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6057 mono_type_is_void (MonoType *type)
6059 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6063 * mono_type_is_pointer:
6064 * @type: the MonoType operated on
6066 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6069 mono_type_is_pointer (MonoType *type)
6071 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6072 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6073 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6074 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6075 (type->type == MONO_TYPE_FNPTR)));
6079 * mono_type_is_reference:
6080 * @type: the MonoType operated on
6082 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6085 mono_type_is_reference (MonoType *type)
6087 return (type && (((type->type == MONO_TYPE_STRING) ||
6088 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6089 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6090 ((type->type == MONO_TYPE_GENERICINST) &&
6091 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6095 * mono_signature_get_return_type:
6096 * @sig: the method signature inspected
6098 * Returns: the return type of the method signature @sig
6101 mono_signature_get_return_type (MonoMethodSignature *sig)
6107 * mono_signature_get_params:
6108 * @sig: the method signature inspected
6109 * #iter: pointer to an iterator
6111 * Iterates over the parameters for the method signature @sig.
6112 * A void* pointer must be initualized to #NULL to start the iteration
6113 * and it's address is passed to this function repeteadly until it returns
6116 * Returns: the next parameter type of the method signature @sig,
6117 * #NULL when finished.
6120 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6126 /* start from the first */
6127 if (sig->param_count) {
6128 *iter = &sig->params [0];
6129 return sig->params [0];
6137 if (type < &sig->params [sig->param_count]) {
6145 * mono_signature_get_param_count:
6146 * @sig: the method signature inspected
6148 * Returns: the number of parameters in the method signature @sig.
6151 mono_signature_get_param_count (MonoMethodSignature *sig)
6153 return sig->param_count;
6157 * mono_signature_get_call_conv:
6158 * @sig: the method signature inspected
6160 * Returns: the call convention of the method signature @sig.
6163 mono_signature_get_call_conv (MonoMethodSignature *sig)
6165 return sig->call_convention;
6169 * mono_signature_vararg_start:
6170 * @sig: the method signature inspected
6172 * Returns: the number of the first vararg parameter in the
6173 * method signature @sig. -1 if this is not a vararg signature.
6176 mono_signature_vararg_start (MonoMethodSignature *sig)
6178 return sig->sentinelpos;
6182 * mono_signature_is_instance:
6183 * @sig: the method signature inspected
6185 * Returns: #TRUE if this the method signature @sig has an implicit
6186 * first instance argument. #FALSE otherwise.
6189 mono_signature_is_instance (MonoMethodSignature *sig)
6191 return sig->hasthis;
6195 * mono_signature_explicit_this:
6196 * @sig: the method signature inspected
6198 * Returns: #TRUE if this the method signature @sig has an explicit
6199 * instance argument. #FALSE otherwise.
6202 mono_signature_explicit_this (MonoMethodSignature *sig)
6204 return sig->explicit_this;
6207 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6209 mono_aligned_addr_hash (gconstpointer ptr)
6211 return GPOINTER_TO_UINT (ptr) >> 3;
6215 * If @field belongs to an inflated generic class, return the corresponding field of the
6216 * generic type definition class.
6219 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6224 if (!field->parent->generic_class)
6227 gtd = field->parent->generic_class->container_class;
6228 offset = field - field->parent->fields;
6229 return gtd->fields + offset;
6233 * If @event belongs to an inflated generic class, return the corresponding event of the
6234 * generic type definition class.
6237 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6242 if (!event->parent->generic_class)
6245 gtd = event->parent->generic_class->container_class;
6246 offset = event - event->parent->ext->events;
6247 return gtd->ext->events + offset;
6251 * If @property belongs to an inflated generic class, return the corresponding property of the
6252 * generic type definition class.
6255 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6260 if (!property->parent->generic_class)
6263 gtd = property->parent->generic_class->container_class;
6264 offset = property - property->parent->ext->properties;
6265 return gtd->ext->properties + offset;