2 * metadata.c: Routines for accessing the metadata
5 * Miguel de Icaza (miguel@ximian.com)
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
18 #include "tabledefs.h"
19 #include "mono-endian.h"
21 #include "tokentype.h"
22 #include "class-internals.h"
23 #include "metadata-internals.h"
24 #include "verify-internals.h"
27 #include "debug-helpers.h"
28 #include "abi-details.h"
29 #include <mono/utils/mono-error-internals.h>
30 #include <mono/utils/bsearch.h>
32 /* Auxiliary structure used for caching inflated signatures */
34 MonoMethodSignature *sig;
35 MonoGenericContext context;
36 } MonoInflatedMethodSignature;
38 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container, gboolean transient,
39 const char *ptr, const char **rptr);
41 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
42 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
43 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
44 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
45 gboolean signature_only);
46 static void free_generic_inst (MonoGenericInst *ginst);
47 static void free_generic_class (MonoGenericClass *ginst);
48 static void free_inflated_method (MonoMethodInflated *method);
49 static void free_inflated_signature (MonoInflatedMethodSignature *sig);
50 static void mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva, MonoMarshalSpec **marshal_spec, gboolean alloc_from_image);
53 * This enumeration is used to describe the data types in the metadata
64 /* Index into Blob heap */
67 /* Index into String heap */
73 /* Pointer into a table */
76 /* HasConstant:Parent pointer (Param, Field or Property) */
79 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
82 /* CustomAttributeType encoded index */
85 /* HasDeclSecurity index: TypeDef Method or Assembly */
88 /* Implementation coded index: File, Export AssemblyRef */
91 /* HasFieldMarshal coded index: Field or Param table */
94 /* MemberForwardedIndex: Field or Method */
97 /* TypeDefOrRef coded index: typedef, typeref, typespec */
100 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
103 /* MethodDefOrRef coded index: Method or Member Ref table */
106 /* HasSemantic coded index: Event or Property */
109 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
113 const static unsigned char TableSchemas [] = {
114 #define ASSEMBLY_SCHEMA_OFFSET 0
115 MONO_MT_UINT32, /* "HashId" }, */
116 MONO_MT_UINT16, /* "Major" }, */
117 MONO_MT_UINT16, /* "Minor" }, */
118 MONO_MT_UINT16, /* "BuildNumber" }, */
119 MONO_MT_UINT16, /* "RevisionNumber" }, */
120 MONO_MT_UINT32, /* "Flags" }, */
121 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
122 MONO_MT_STRING_IDX, /* "Name" }, */
123 MONO_MT_STRING_IDX, /* "Culture" }, */
126 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
127 MONO_MT_UINT32, /* "OSPlatformID" }, */
128 MONO_MT_UINT32, /* "OSMajor" }, */
129 MONO_MT_UINT32, /* "OSMinor" }, */
132 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
133 MONO_MT_UINT32, /* "Processor" }, */
136 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
137 MONO_MT_UINT16, /* "Major" }, */
138 MONO_MT_UINT16, /* "Minor" }, */
139 MONO_MT_UINT16, /* "Build" }, */
140 MONO_MT_UINT16, /* "Revision" }, */
141 MONO_MT_UINT32, /* "Flags" }, */
142 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
143 MONO_MT_STRING_IDX, /* "Name" }, */
144 MONO_MT_STRING_IDX, /* "Culture" }, */
145 MONO_MT_BLOB_IDX, /* "HashValue" }, */
148 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
149 MONO_MT_UINT32, /* "OSPlatformID" }, */
150 MONO_MT_UINT32, /* "OSMajorVersion" }, */
151 MONO_MT_UINT32, /* "OSMinorVersion" }, */
152 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
155 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
156 MONO_MT_UINT32, /* "Processor" }, */
157 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
160 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
161 MONO_MT_UINT16, /* "PackingSize" }, */
162 MONO_MT_UINT32, /* "ClassSize" }, */
163 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
166 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
167 MONO_MT_UINT8, /* "Type" }, */
168 MONO_MT_UINT8, /* "PaddingZero" }, */
169 MONO_MT_CONST_IDX, /* "Parent" }, */
170 MONO_MT_BLOB_IDX, /* "Value" }, */
173 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
174 MONO_MT_HASCAT_IDX, /* "Parent" }, */
175 MONO_MT_CAT_IDX, /* "Type" }, */
176 MONO_MT_BLOB_IDX, /* "Value" }, */
179 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
180 MONO_MT_UINT16, /* "Action" }, */
181 MONO_MT_HASDEC_IDX, /* "Parent" }, */
182 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
185 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
186 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
187 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
190 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
191 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
192 MONO_MT_STRING_IDX, /* "Name" }, */
193 MONO_MT_TDOR_IDX, /* "EventType" }, TypeDef or TypeRef or TypeSpec */
196 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
197 MONO_MT_TABLE_IDX, /* "Event" }, */
200 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
201 MONO_MT_UINT32, /* "Flags" }, */
202 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
203 MONO_MT_STRING_IDX, /* "TypeName" }, */
204 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
205 MONO_MT_IMPL_IDX, /* "Implementation" }, */
208 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
209 MONO_MT_UINT16, /* "Flags" }, */
210 MONO_MT_STRING_IDX, /* "Name" }, */
211 MONO_MT_BLOB_IDX, /* "Signature" }, */
214 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
215 MONO_MT_UINT32, /* "Offset" }, */
216 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
219 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
220 MONO_MT_HFM_IDX, /* "Parent" }, */
221 MONO_MT_BLOB_IDX, /* "NativeType" }, */
224 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
225 MONO_MT_UINT32, /* "RVA" }, */
226 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
229 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
230 MONO_MT_TABLE_IDX, /* "Field" }, */
233 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
234 MONO_MT_UINT32, /* "Flags" }, */
235 MONO_MT_STRING_IDX, /* "Name" }, */
236 MONO_MT_BLOB_IDX, /* "Value" }, */
239 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
240 MONO_MT_UINT16, /* "MappingFlag" }, */
241 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
242 MONO_MT_STRING_IDX, /* "ImportName" }, */
243 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
246 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
247 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
248 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
251 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
252 MONO_MT_UINT32, /* "Offset" }, */
253 MONO_MT_UINT32, /* "Flags" }, */
254 MONO_MT_STRING_IDX, /* "Name" }, */
255 MONO_MT_IMPL_IDX, /* "Implementation" }, */
258 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
259 MONO_MT_MRP_IDX, /* "Class" }, */
260 MONO_MT_STRING_IDX, /* "Name" }, */
261 MONO_MT_BLOB_IDX, /* "Signature" }, */
264 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
265 MONO_MT_UINT32, /* "RVA" }, */
266 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
267 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
268 MONO_MT_STRING_IDX, /* "Name" }, */
269 MONO_MT_BLOB_IDX, /* "Signature" }, */
270 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
273 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
274 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
275 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
276 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
279 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
280 MONO_MT_UINT16, /* "MethodSemantic" }, */
281 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
282 MONO_MT_HS_IDX, /* "Association" }, */
285 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
286 MONO_MT_TABLE_IDX, /* "Method" }, */
289 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
290 MONO_MT_UINT16, /* "Generation" }, */
291 MONO_MT_STRING_IDX, /* "Name" }, */
292 MONO_MT_GUID_IDX, /* "MVID" }, */
293 MONO_MT_GUID_IDX, /* "EncID" }, */
294 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
297 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
298 MONO_MT_STRING_IDX, /* "Name" }, */
301 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
302 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
303 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
306 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
307 MONO_MT_UINT16, /* "Flags" }, */
308 MONO_MT_UINT16, /* "Sequence" }, */
309 MONO_MT_STRING_IDX, /* "Name" }, */
312 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
313 MONO_MT_TABLE_IDX, /* "Param" }, */
316 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
317 MONO_MT_UINT16, /* "Flags" }, */
318 MONO_MT_STRING_IDX, /* "Name" }, */
319 MONO_MT_BLOB_IDX, /* "Type" }, */
322 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
323 MONO_MT_TABLE_IDX, /* "Property" }, */
326 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
327 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
328 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
331 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
332 MONO_MT_BLOB_IDX, /* "Signature" }, */
335 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
336 MONO_MT_UINT32, /* "Flags" }, */
337 MONO_MT_STRING_IDX, /* "Name" }, */
338 MONO_MT_STRING_IDX, /* "Namespace" }, */
339 MONO_MT_TDOR_IDX, /* "Extends" }, */
340 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
341 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
344 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
345 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
346 MONO_MT_STRING_IDX, /* "Name" }, */
347 MONO_MT_STRING_IDX, /* "Namespace" }, */
350 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
351 MONO_MT_BLOB_IDX, /* "Signature" }, */
354 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
355 MONO_MT_UINT16, /* "Number" }, */
356 MONO_MT_UINT16, /* "Flags" }, */
357 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
358 MONO_MT_STRING_IDX, /* "Name" }, */
361 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
362 MONO_MT_MDOR_IDX, /* "Method" }, */
363 MONO_MT_BLOB_IDX, /* "Signature" }, */
366 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
367 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
368 MONO_MT_TDOR_IDX, /* "Constraint" }, */
371 #define DOCUMENT_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
372 MONO_MT_BLOB_IDX, /* Name */
373 MONO_MT_GUID_IDX, /* HashAlgorithm */
374 MONO_MT_BLOB_IDX, /* Hash */
375 MONO_MT_GUID_IDX, /* Language */
378 #define METHODBODY_SCHEMA_OFFSET DOCUMENT_SCHEMA_OFFSET + 5
379 MONO_MT_BLOB_IDX, /* SequencePoints */
382 #define LOCALSCOPE_SCHEMA_OFFSET METHODBODY_SCHEMA_OFFSET + 2
383 MONO_MT_TABLE_IDX, /* Method */
384 MONO_MT_TABLE_IDX, /* ImportScope */
385 MONO_MT_TABLE_IDX, /* VariableList */
386 MONO_MT_TABLE_IDX, /* ConstantList */
387 MONO_MT_UINT32, /* StartOffset */
388 MONO_MT_UINT32, /* Length */
391 #define LOCALVARIABLE_SCHEMA_OFFSET LOCALSCOPE_SCHEMA_OFFSET + 7
392 MONO_MT_UINT16, /* Attributes */
393 MONO_MT_UINT16, /* Index */
394 MONO_MT_STRING_IDX, /* Name */
397 #define NULL_SCHEMA_OFFSET LOCALVARIABLE_SCHEMA_OFFSET + 4
401 /* Must be the same order as MONO_TABLE_* */
402 const static unsigned char
403 table_description [] = {
404 MODULE_SCHEMA_OFFSET,
405 TYPEREF_SCHEMA_OFFSET,
406 TYPEDEF_SCHEMA_OFFSET,
407 FIELD_POINTER_SCHEMA_OFFSET,
409 METHOD_POINTER_SCHEMA_OFFSET,
410 METHOD_SCHEMA_OFFSET,
411 PARAM_POINTER_SCHEMA_OFFSET,
413 IFACEMAP_SCHEMA_OFFSET,
414 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
415 CONSTANT_SCHEMA_OFFSET,
416 CUSTOM_ATTR_SCHEMA_OFFSET,
417 FIELD_MARSHAL_SCHEMA_OFFSET,
418 DECL_SEC_SCHEMA_OFFSET,
419 CLASS_LAYOUT_SCHEMA_OFFSET,
420 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
421 STDALON_SIG_SCHEMA_OFFSET,
422 EVENTMAP_SCHEMA_OFFSET,
423 EVENT_POINTER_SCHEMA_OFFSET,
425 PROPERTY_MAP_SCHEMA_OFFSET,
426 PROPERTY_POINTER_SCHEMA_OFFSET,
427 PROPERTY_SCHEMA_OFFSET,
428 METHOD_SEMA_SCHEMA_OFFSET,
429 METHOD_IMPL_SCHEMA_OFFSET,
430 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
431 TYPESPEC_SCHEMA_OFFSET,
432 IMPLMAP_SCHEMA_OFFSET,
433 FIELD_RVA_SCHEMA_OFFSET,
436 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
437 ASSEMBLYPROC_SCHEMA_OFFSET,
438 ASSEMBLYOS_SCHEMA_OFFSET,
439 ASSEMBLYREF_SCHEMA_OFFSET,
440 ASSEMBLYREFPROC_SCHEMA_OFFSET,
441 ASSEMBLYREFOS_SCHEMA_OFFSET,
443 EXPORTED_TYPE_SCHEMA_OFFSET,
444 MANIFEST_SCHEMA_OFFSET,
445 NESTED_CLASS_SCHEMA_OFFSET,
446 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
447 METHOD_SPEC_SCHEMA_OFFSET,
448 GEN_CONSTRAINT_SCHEMA_OFFSET,
452 DOCUMENT_SCHEMA_OFFSET, /* 0x30 */
453 METHODBODY_SCHEMA_OFFSET,
454 LOCALSCOPE_SCHEMA_OFFSET,
455 LOCALVARIABLE_SCHEMA_OFFSET
458 #ifdef HAVE_ARRAY_ELEM_INIT
459 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
460 #define MSGSTRFIELD1(line) str##line
461 static const struct msgstr_t {
462 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
463 #include "mono/cil/tables.def"
466 #define TABLEDEF(a,b) b,
467 #include "mono/cil/tables.def"
470 static const gint16 tableidx [] = {
471 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
472 #include "mono/cil/tables.def"
477 #define TABLEDEF(a,b) b,
478 static const char* const
479 mono_tables_names [] = {
480 #include "mono/cil/tables.def"
487 * mono_meta_table_name:
488 * @table: table index
490 * Returns the name of the given ECMA metadata logical format table
491 * as described in ECMA 335, Partition II, Section 22.
493 * Returns: the name for the @table index
496 mono_meta_table_name (int table)
498 if ((table < 0) || (table > MONO_TABLE_LAST))
501 #ifdef HAVE_ARRAY_ELEM_INIT
502 return (const char*)&tablestr + tableidx [table];
504 return mono_tables_names [table];
508 /* The guy who wrote the spec for this should not be allowed near a
511 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
512 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
513 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
514 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
515 inverse of this mapping.
518 #define rtsize(meta,s,b) (((s) < (1 << (b)) ? 2 : 4))
519 #define idx_size(meta,tableidx) ((meta)->tables [(tableidx)].rows < 65536 ? 2 : 4)
521 /* Reference: Partition II - 23.2.6 */
523 * mono_metadata_compute_size:
524 * @meta: metadata context
525 * @tableindex: metadata table number
526 * @result_bitfield: pointer to guint32 where to store additional info
528 * mono_metadata_compute_size() computes the lenght in bytes of a single
529 * row in a metadata table. The size of each column is encoded in the
530 * @result_bitfield return value along with the number of columns in the table.
531 * the resulting bitfield should be handed to the mono_metadata_table_size()
532 * and mono_metadata_table_count() macros.
533 * This is a Mono runtime internal only function.
536 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
538 guint32 bitfield = 0;
539 int size = 0, field_size = 0;
542 const unsigned char *description = TableSchemas + table_description [tableindex];
544 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
547 field_size = 4; break;
550 field_size = 2; break;
553 field_size = 1; break;
555 case MONO_MT_BLOB_IDX:
556 field_size = meta->idx_blob_wide ? 4 : 2; break;
558 case MONO_MT_STRING_IDX:
559 field_size = meta->idx_string_wide ? 4 : 2; break;
561 case MONO_MT_GUID_IDX:
562 field_size = meta->idx_guid_wide ? 4 : 2; break;
564 case MONO_MT_TABLE_IDX:
565 /* Uhm, a table index can point to other tables besides the current one
566 * so, it's not correct to use the rowcount of the current table to
567 * get the size for this column - lupus
569 switch (tableindex) {
570 case MONO_TABLE_ASSEMBLYREFOS:
572 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
573 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
575 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
576 case MONO_TABLE_CLASSLAYOUT:
578 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
579 case MONO_TABLE_EVENTMAP:
580 g_assert (i == 0 || i == 1);
581 field_size = i ? idx_size (meta, MONO_TABLE_EVENT):
582 idx_size (meta, MONO_TABLE_TYPEDEF);
584 case MONO_TABLE_EVENT_POINTER:
586 field_size = idx_size (meta, MONO_TABLE_EVENT); break;
587 case MONO_TABLE_EXPORTEDTYPE:
589 /* the index is in another metadata file, so it must be 4 */
590 field_size = 4; break;
591 case MONO_TABLE_FIELDLAYOUT:
593 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
594 case MONO_TABLE_FIELDRVA:
596 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
597 case MONO_TABLE_FIELD_POINTER:
599 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
600 case MONO_TABLE_IMPLMAP:
602 field_size = idx_size (meta, MONO_TABLE_MODULEREF); break;
603 case MONO_TABLE_INTERFACEIMPL:
605 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
606 case MONO_TABLE_METHOD:
608 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
609 case MONO_TABLE_METHODIMPL:
611 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
612 case MONO_TABLE_METHODSEMANTICS:
614 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
615 case MONO_TABLE_METHOD_POINTER:
617 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
618 case MONO_TABLE_NESTEDCLASS:
619 g_assert (i == 0 || i == 1);
620 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
621 case MONO_TABLE_PARAM_POINTER:
623 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
624 case MONO_TABLE_PROPERTYMAP:
625 g_assert (i == 0 || i == 1);
626 field_size = i ? idx_size (meta, MONO_TABLE_PROPERTY):
627 idx_size (meta, MONO_TABLE_TYPEDEF);
629 case MONO_TABLE_PROPERTY_POINTER:
631 field_size = idx_size (meta, MONO_TABLE_PROPERTY); break;
632 case MONO_TABLE_TYPEDEF:
633 g_assert (i == 4 || i == 5);
634 field_size = i == 4 ? idx_size (meta, MONO_TABLE_FIELD):
635 idx_size (meta, MONO_TABLE_METHOD);
637 case MONO_TABLE_GENERICPARAM:
639 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
640 /*This is a coded token for 2 tables, so takes 1 bit */
641 field_size = rtsize (meta, n, 16 - MONO_TYPEORMETHOD_BITS);
643 case MONO_TABLE_GENERICPARAMCONSTRAINT:
645 field_size = idx_size (meta, MONO_TABLE_GENERICPARAM);
647 case MONO_TABLE_LOCALSCOPE:
650 // FIXME: This table is in another file
651 field_size = idx_size (meta, MONO_TABLE_METHOD);
654 field_size = idx_size (meta, MONO_TABLE_IMPORTSCOPE);
657 field_size = idx_size (meta, MONO_TABLE_LOCALVARIABLE);
660 field_size = idx_size (meta, MONO_TABLE_LOCALCONSTANT);
663 g_assert_not_reached ();
668 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
673 * HasConstant: ParamDef, FieldDef, Property
675 case MONO_MT_CONST_IDX:
676 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
677 meta->tables [MONO_TABLE_FIELD].rows);
678 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
680 /* 2 bits to encode tag */
681 field_size = rtsize (meta, n, 16-2);
685 * HasCustomAttribute: points to any table but
688 case MONO_MT_HASCAT_IDX:
690 * We believe that since the signature and
691 * permission are indexing the Blob heap,
692 * we should consider the blob size first
694 /* I'm not a believer - lupus
695 if (meta->idx_blob_wide){
700 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
701 meta->tables [MONO_TABLE_FIELD].rows);
702 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
703 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
704 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
705 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
706 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
707 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
708 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
709 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
710 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
711 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
712 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
713 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
714 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
715 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
716 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
717 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
718 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
720 /* 5 bits to encode */
721 field_size = rtsize (meta, n, 16-5);
725 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
726 * MemberRef and String.
728 case MONO_MT_CAT_IDX:
729 /* String is a heap, if it is wide, we know the size */
731 if (meta->idx_string_wide){
736 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
737 meta->tables [MONO_TABLE_TYPEDEF].rows);
738 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
739 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
741 /* 3 bits to encode */
742 field_size = rtsize (meta, n, 16-3);
746 * HasDeclSecurity: Typedef, MethodDef, Assembly
748 case MONO_MT_HASDEC_IDX:
749 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
750 meta->tables [MONO_TABLE_METHOD].rows);
751 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
753 /* 2 bits to encode */
754 field_size = rtsize (meta, n, 16-2);
758 * Implementation: File, AssemblyRef, ExportedType
760 case MONO_MT_IMPL_IDX:
761 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
762 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
763 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
765 /* 2 bits to encode tag */
766 field_size = rtsize (meta, n, 16-2);
770 * HasFieldMarshall: FieldDef, ParamDef
772 case MONO_MT_HFM_IDX:
773 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
774 meta->tables [MONO_TABLE_PARAM].rows);
776 /* 1 bit used to encode tag */
777 field_size = rtsize (meta, n, 16-1);
781 * MemberForwarded: FieldDef, MethodDef
784 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
785 meta->tables [MONO_TABLE_METHOD].rows);
787 /* 1 bit used to encode tag */
788 field_size = rtsize (meta, n, 16-1);
792 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
794 * It is TypeDef, _TypeRef_, TypeSpec, instead.
796 case MONO_MT_TDOR_IDX:
797 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
798 meta->tables [MONO_TABLE_TYPEREF].rows);
799 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
801 /* 2 bits to encode */
802 field_size = rtsize (meta, n, 16-2);
806 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
808 case MONO_MT_MRP_IDX:
809 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
810 meta->tables [MONO_TABLE_TYPEREF].rows);
811 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
812 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
813 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
815 /* 3 bits to encode */
816 field_size = rtsize (meta, n, 16 - 3);
820 * MethodDefOrRef: MethodDef, MemberRef
822 case MONO_MT_MDOR_IDX:
823 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
824 meta->tables [MONO_TABLE_MEMBERREF].rows);
826 /* 1 bit used to encode tag */
827 field_size = rtsize (meta, n, 16-1);
831 * HasSemantics: Property, Event
834 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
835 meta->tables [MONO_TABLE_EVENT].rows);
837 /* 1 bit used to encode tag */
838 field_size = rtsize (meta, n, 16-1);
842 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
845 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
846 meta->tables [MONO_TABLE_MODULEREF].rows);
847 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
848 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
850 /* 2 bits used to encode tag (ECMA spec claims 3) */
851 field_size = rtsize (meta, n, 16 - 2);
856 * encode field size as follows (we just need to
863 bitfield |= (field_size-1) << shift;
866 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
869 *result_bitfield = (i << 24) | bitfield;
874 * mono_metadata_compute_table_bases:
875 * @meta: metadata context to compute table values
877 * Computes the table bases for the metadata structure.
878 * This is an internal function used by the image loader code.
881 mono_metadata_compute_table_bases (MonoImage *meta)
884 const char *base = meta->tables_base;
886 for (i = 0; i < MONO_TABLE_NUM; i++) {
887 MonoTableInfo *table = &meta->tables [i];
888 if (table->rows == 0)
891 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
893 base += table->rows * table->row_size;
898 * mono_metadata_locate:
899 * @meta: metadata context
900 * @table: table code.
901 * @idx: index of element to retrieve from @table.
903 * Returns: a pointer to the @idx element in the metadata table
904 * whose code is @table.
907 mono_metadata_locate (MonoImage *meta, int table, int idx)
909 /* idx == 0 refers always to NULL */
910 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
912 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
916 * mono_metadata_locate_token:
917 * @meta: metadata context
918 * @token: metadata token
920 * Returns: a pointer to the data in the metadata represented by the
924 mono_metadata_locate_token (MonoImage *meta, guint32 token)
926 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
930 * mono_metadata_string_heap:
931 * @meta: metadata context
932 * @index: index into the string heap.
934 * Returns: an in-memory pointer to the @index in the string heap.
937 mono_metadata_string_heap (MonoImage *meta, guint32 index)
939 g_assert (index < meta->heap_strings.size);
940 g_return_val_if_fail (index < meta->heap_strings.size, "");
941 return meta->heap_strings.data + index;
945 * mono_metadata_user_string:
946 * @meta: metadata context
947 * @index: index into the user string heap.
949 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
952 mono_metadata_user_string (MonoImage *meta, guint32 index)
954 g_assert (index < meta->heap_us.size);
955 g_return_val_if_fail (index < meta->heap_us.size, "");
956 return meta->heap_us.data + index;
960 * mono_metadata_blob_heap:
961 * @meta: metadata context
962 * @index: index into the blob.
964 * Returns: an in-memory pointer to the @index in the Blob heap.
967 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
969 g_assert (index < meta->heap_blob.size);
970 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
971 return meta->heap_blob.data + index;
975 * mono_metadata_guid_heap:
976 * @meta: metadata context
977 * @index: index into the guid heap.
979 * Returns: an in-memory pointer to the @index in the guid heap.
982 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
985 index *= 16; /* adjust for guid size and 1-based index */
986 g_return_val_if_fail (index < meta->heap_guid.size, "");
987 return meta->heap_guid.data + index;
990 static const unsigned char *
991 dword_align (const unsigned char *ptr)
993 #if SIZEOF_VOID_P == 8
994 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
996 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
1001 * mono_metadata_decode_row:
1002 * @t: table to extract information from.
1003 * @idx: index in table.
1004 * @res: array of @res_size cols to store the results in
1006 * This decompresses the metadata element @idx in table @t
1007 * into the guint32 @res array that has res_size elements
1010 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
1012 guint32 bitfield = t->size_bitfield;
1013 int i, count = mono_metadata_table_count (bitfield);
1016 g_assert (idx < t->rows);
1017 g_assert (idx >= 0);
1018 data = t->base + idx * t->row_size;
1020 g_assert (res_size == count);
1022 for (i = 0; i < count; i++) {
1023 int n = mono_metadata_table_size (bitfield, i);
1027 res [i] = *data; break;
1029 res [i] = read16 (data); break;
1031 res [i] = read32 (data); break;
1033 g_assert_not_reached ();
1040 * mono_metadata_decode_row_col:
1041 * @t: table to extract information from.
1042 * @idx: index for row in table.
1043 * @col: column in the row.
1045 * This function returns the value of column @col from the @idx
1046 * row in the table @t.
1049 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
1051 guint32 bitfield = t->size_bitfield;
1053 register const char *data;
1056 g_assert (idx < t->rows);
1057 g_assert (col < mono_metadata_table_count (bitfield));
1058 data = t->base + idx * t->row_size;
1060 n = mono_metadata_table_size (bitfield, 0);
1061 for (i = 0; i < col; ++i) {
1063 n = mono_metadata_table_size (bitfield, i + 1);
1069 return read16 (data);
1071 return read32 (data);
1073 g_assert_not_reached ();
1079 * mono_metadata_decode_blob_size:
1080 * @ptr: pointer to a blob object
1081 * @rptr: the new position of the pointer
1083 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1085 * Returns: the size of the blob object
1088 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1090 const unsigned char *ptr = (const unsigned char *)xptr;
1093 if ((*ptr & 0x80) == 0){
1094 size = ptr [0] & 0x7f;
1096 } else if ((*ptr & 0x40) == 0){
1097 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1100 size = ((ptr [0] & 0x1f) << 24) +
1112 * mono_metadata_decode_value:
1113 * @ptr: pointer to decode from
1114 * @rptr: the new position of the pointer
1116 * This routine decompresses 32-bit values as specified in the "Blob and
1117 * Signature" section (22.2)
1119 * Returns: the decoded value
1122 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1124 const unsigned char *ptr = (const unsigned char *) _ptr;
1125 unsigned char b = *ptr;
1128 if ((b & 0x80) == 0){
1131 } else if ((b & 0x40) == 0){
1132 len = ((b & 0x3f) << 8 | ptr [1]);
1135 len = ((b & 0x1f) << 24) |
1148 * mono_metadata_decode_signed_value:
1149 * @ptr: pointer to decode from
1150 * @rptr: the new position of the pointer
1152 * This routine decompresses 32-bit signed values
1153 * (not specified in the spec)
1155 * Returns: the decoded value
1158 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1160 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1161 gint32 ival = uval >> 1;
1164 /* ival is a truncated 2's complement negative number. */
1166 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1169 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1170 return ival - 0x2000;
1171 if (ival < 0x10000000)
1172 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1173 return ival - 0x10000000;
1174 g_assert (ival < 0x20000000);
1175 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1176 return ival - 0x20000000;
1180 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1181 * using the *Ptr tables in uncompressed metadata, if they are available.
1183 * FIXME: The caller is not forced to call this function, which is error-prone, since
1184 * forgetting to call it would only show up as a bug on uncompressed metadata.
1187 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1189 if (!image->uncompressed_metadata)
1193 case MONO_TABLE_METHOD:
1194 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1195 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1198 case MONO_TABLE_FIELD:
1199 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1200 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1203 case MONO_TABLE_EVENT:
1204 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1205 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1208 case MONO_TABLE_PROPERTY:
1209 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1210 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1213 case MONO_TABLE_PARAM:
1214 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1215 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1224 * mono_metadata_decode_table_row:
1226 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1227 * uncompressed metadata into account, so it should be used to access the
1228 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1229 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1232 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1234 if (image->uncompressed_metadata)
1235 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1237 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1241 * mono_metadata_decode_table_row_col:
1243 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1244 * uncompressed metadata into account, so it should be used to access the
1245 * Method, Field, Param and Event tables.
1247 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1249 if (image->uncompressed_metadata)
1250 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1252 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1256 * mono_metadata_parse_typedef_or_ref:
1257 * @m: a metadata context.
1258 * @ptr: a pointer to an encoded TypedefOrRef in @m
1259 * @rptr: pointer updated to match the end of the decoded stream
1261 * Returns: a token valid in the @m metadata decoded from
1262 * the compressed representation.
1265 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1268 token = mono_metadata_decode_value (ptr, &ptr);
1271 return mono_metadata_token_from_dor (token);
1275 * mono_metadata_parse_custom_mod:
1276 * @m: a metadata context.
1277 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1278 * @ptr: a pointer to (possibly) the start of a custom modifier list
1279 * @rptr: pointer updated to match the end of the decoded stream
1281 * Checks if @ptr points to a type custom modifier compressed representation.
1283 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1286 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1288 MonoCustomMod local;
1289 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1292 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1293 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1300 * mono_metadata_parse_array_internal:
1301 * @m: a metadata context.
1302 * @transient: whenever to allocate data from the heap
1303 * @ptr: a pointer to an encoded array description.
1304 * @rptr: pointer updated to match the end of the decoded stream
1306 * Decodes the compressed array description found in the metadata @m at @ptr.
1308 * Returns: a #MonoArrayType structure describing the array type
1309 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1310 * on the value of @transient.
1312 * LOCKING: Acquires the loader lock
1314 static MonoArrayType *
1315 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1316 gboolean transient, const char *ptr, const char **rptr)
1319 MonoArrayType *array;
1322 array = transient ? g_malloc0 (sizeof (MonoArrayType)) : mono_image_alloc0 (m, sizeof (MonoArrayType));
1323 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1326 array->eklass = mono_class_from_mono_type (etype);
1327 array->rank = mono_metadata_decode_value (ptr, &ptr);
1329 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1330 if (array->numsizes)
1331 array->sizes = transient ? g_malloc0 (sizeof (int) * array->numsizes) : mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1332 for (i = 0; i < array->numsizes; ++i)
1333 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1335 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1336 if (array->numlobounds)
1337 array->lobounds = transient ? g_malloc0 (sizeof (int) * array->numlobounds) : mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1338 for (i = 0; i < array->numlobounds; ++i)
1339 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1347 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1348 const char *ptr, const char **rptr)
1350 return mono_metadata_parse_array_internal (m, container, FALSE, ptr, rptr);
1354 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1356 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1360 * mono_metadata_free_array:
1361 * @array: array description
1363 * Frees the array description returned from mono_metadata_parse_array().
1366 mono_metadata_free_array (MonoArrayType *array)
1368 g_free (array->sizes);
1369 g_free (array->lobounds);
1374 * need to add common field and param attributes combinations:
1377 * public static literal
1380 * private static literal
1382 static const MonoType
1384 /* data, attrs, type, nmods, byref, pinned */
1385 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1386 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1387 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1388 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1389 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1390 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1391 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1392 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1393 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1394 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1395 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1396 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1397 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1398 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1399 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1400 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1401 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1402 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1403 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1404 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1405 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1406 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1407 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1408 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1409 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1410 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1411 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1412 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1413 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1414 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1415 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1416 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1417 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1418 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1421 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1423 static GHashTable *type_cache = NULL;
1424 static int next_generic_inst_id = 0;
1426 /* Protected by image_sets_mutex */
1427 static MonoImageSet *mscorlib_image_set;
1428 /* Protected by image_sets_mutex */
1429 static GPtrArray *image_sets;
1430 static mono_mutex_t image_sets_mutex;
1432 static guint mono_generic_class_hash (gconstpointer data);
1435 * MonoTypes with modifies are never cached, so we never check or use that field.
1438 mono_type_hash (gconstpointer data)
1440 const MonoType *type = (const MonoType *) data;
1441 if (type->type == MONO_TYPE_GENERICINST)
1442 return mono_generic_class_hash (type->data.generic_class);
1444 return type->type | (type->byref << 8) | (type->attrs << 9);
1448 mono_type_equal (gconstpointer ka, gconstpointer kb)
1450 const MonoType *a = (const MonoType *) ka;
1451 const MonoType *b = (const MonoType *) kb;
1453 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1455 /* need other checks */
1460 mono_metadata_generic_inst_hash (gconstpointer data)
1462 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1466 for (i = 0; i < ginst->type_argc; ++i) {
1468 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1471 return hash ^ (ginst->is_open << 8);
1475 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1479 #ifndef MONO_SMALL_CONFIG
1480 if (a->id && b->id) {
1483 if (!signature_only)
1488 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1490 for (i = 0; i < a->type_argc; ++i) {
1491 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1498 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1500 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1501 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1503 return mono_generic_inst_equal_full (a, b, FALSE);
1507 mono_generic_class_hash (gconstpointer data)
1509 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1510 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1513 hash += gclass->is_tb_open;
1514 hash += mono_metadata_generic_context_hash (&gclass->context);
1520 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1522 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1523 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1525 return _mono_metadata_generic_class_equal (a, b, FALSE);
1529 * mono_metadata_init:
1531 * Initialize the global variables of this module.
1532 * This is a Mono runtime internal function.
1535 mono_metadata_init (void)
1539 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1541 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1542 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1544 mono_mutex_init_recursive (&image_sets_mutex);
1548 * mono_metadata_cleanup:
1550 * Free all resources used by this module.
1551 * This is a Mono runtime internal function.
1554 mono_metadata_cleanup (void)
1556 g_hash_table_destroy (type_cache);
1558 g_ptr_array_free (image_sets, TRUE);
1560 mono_mutex_destroy (&image_sets_mutex);
1564 * mono_metadata_parse_type:
1565 * @m: metadata context
1566 * @mode: king of type that may be found at @ptr
1567 * @opt_attrs: optional attributes to store in the returned type
1568 * @ptr: pointer to the type representation
1569 * @rptr: pointer updated to match the end of the decoded stream
1570 * @transient: whenever to allocate the result from the heap or from a mempool
1572 * Decode a compressed type description found at @ptr in @m.
1573 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1574 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1575 * This function can be used to decode type descriptions in method signatures,
1576 * field signatures, locals signatures etc.
1578 * To parse a generic type, `generic_container' points to the current class'es
1579 * (the `generic_container' field in the MonoClass) or the current generic method's
1580 * (stored in image->property_hash) generic container.
1581 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1582 * this MonoGenericContainer.
1584 * LOCKING: Acquires the loader lock.
1586 * Returns: a #MonoType structure representing the decoded type.
1589 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1590 short opt_attrs, gboolean transient, const char *ptr, const char **rptr)
1592 MonoType *type, *cached;
1594 gboolean byref = FALSE;
1595 gboolean pinned = FALSE;
1596 const char *tmp_ptr;
1601 * According to the spec, custom modifiers should come before the byref
1602 * flag, but the IL produced by ilasm from the following signature:
1603 * object modopt(...) &
1604 * starts with a byref flag, followed by the modifiers. (bug #49802)
1605 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1606 * it would be better to treat byref as real type constructor instead of
1608 * Also, pinned should come before anything else, but some MSV++ produced
1609 * assemblies violate this (#bug 61990).
1612 /* Count the modifiers first */
1617 case MONO_TYPE_PINNED:
1618 case MONO_TYPE_BYREF:
1621 case MONO_TYPE_CMOD_REQD:
1622 case MONO_TYPE_CMOD_OPT:
1624 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1634 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1635 type = transient ? g_malloc0 (size) : mono_image_alloc0 (m, size);
1636 type->num_mods = count;
1638 g_warning ("got more than 64 modifiers in type");
1641 memset (type, 0, MONO_SIZEOF_TYPE);
1644 /* Parse pinned, byref and custom modifiers */
1649 case MONO_TYPE_PINNED:
1653 case MONO_TYPE_BYREF:
1657 case MONO_TYPE_CMOD_REQD:
1658 case MONO_TYPE_CMOD_OPT:
1659 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1667 type->attrs = opt_attrs;
1668 type->byref = byref;
1669 type->pinned = pinned ? 1 : 0;
1671 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr)) {
1678 if (!type->num_mods && !transient) {
1679 /* no need to free type here, because it is on the stack */
1680 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1681 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1683 /* Consider the case:
1685 class Foo<T> { class Bar {} }
1686 class Test : Foo<Test>.Bar {}
1688 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1689 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1691 We ensure that the MonoClass is in a state that we can canonicalize to:
1693 klass->byval_arg.data.klass == klass
1694 klass->this_arg.data.klass == klass
1696 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1698 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1699 of a MonoClass which currently holds the loader lock. 'type' is local.
1701 if (ret->data.klass == type->data.klass) {
1705 /* No need to use locking since nobody is modifying the hash table */
1706 if ((cached = g_hash_table_lookup (type_cache, type))) {
1711 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1713 if (type == &stype) {
1714 type = transient ? g_malloc (MONO_SIZEOF_TYPE) : mono_image_alloc (m, MONO_SIZEOF_TYPE);
1715 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1721 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1722 short opt_attrs, const char *ptr, const char **rptr)
1724 return mono_metadata_parse_type_internal (m, container, mode, opt_attrs, FALSE, ptr, rptr);
1728 * LOCKING: Acquires the loader lock.
1731 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1732 const char *ptr, const char **rptr)
1734 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1738 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1740 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1741 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1742 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1744 if (def < methodt->rows)
1745 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1747 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1749 for (i = param_index; i < lastp; ++i) {
1750 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1759 * mono_metadata_get_param_attrs:
1761 * @m The image to loader parameter attributes from
1762 * @def method def token (one based)
1763 * @param_count number of params to decode including the return value
1765 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1766 * returned memory needs to be freed by the caller. If all the param attributes are
1767 * 0, then NULL is returned.
1770 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1772 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1773 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1774 guint32 cols [MONO_PARAM_SIZE];
1775 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1778 if (def < methodt->rows)
1779 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1781 lastp = paramt->rows + 1;
1783 for (i = param_index; i < lastp; ++i) {
1784 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1785 if (cols [MONO_PARAM_FLAGS]) {
1787 pattrs = g_new0 (int, param_count);
1788 /* at runtime we just ignore this kind of malformed file:
1789 * the verifier can signal the error to the user
1791 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1793 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1802 * mono_metadata_parse_signature:
1803 * @image: metadata context
1804 * @toke: metadata token
1806 * Decode a method signature stored in the STANDALONESIG table
1808 * Returns: a MonoMethodSignature describing the signature.
1810 MonoMethodSignature*
1811 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1814 MonoMethodSignature *ret;
1815 MonoTableInfo *tables = image->tables;
1816 guint32 idx = mono_metadata_token_index (token);
1820 if (image_is_dynamic (image))
1821 return mono_lookup_dynamic_token (image, token, NULL);
1823 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1825 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1827 ptr = mono_metadata_blob_heap (image, sig);
1828 mono_metadata_decode_blob_size (ptr, &ptr);
1830 ret = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, &error);
1831 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1836 * mono_metadata_signature_alloc:
1837 * @image: metadata context
1838 * @nparmas: number of parameters in the signature
1840 * Allocate a MonoMethodSignature structure with the specified number of params.
1841 * The return type and the params types need to be filled later.
1842 * This is a Mono runtime internal function.
1844 * LOCKING: Assumes the loader lock is held.
1846 * Returns: the new MonoMethodSignature structure.
1848 MonoMethodSignature*
1849 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1851 MonoMethodSignature *sig;
1853 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1854 sig->param_count = nparams;
1855 sig->sentinelpos = -1;
1860 static MonoMethodSignature*
1861 mono_metadata_signature_dup_internal_with_padding (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig, size_t padding)
1863 int sigsize, sig_header_size;
1864 MonoMethodSignature *ret;
1865 sigsize = sig_header_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *) + padding;
1867 sigsize += sizeof (MonoType);
1870 ret = mono_image_alloc (image, sigsize);
1872 ret = mono_mempool_alloc (mp, sigsize);
1874 ret = g_malloc (sigsize);
1877 memcpy (ret, sig, sig_header_size - padding);
1879 // Copy return value because of ownership semantics.
1881 // Danger! Do not alter padding use without changing the dup_add_this below
1882 intptr_t end_of_header = (intptr_t)( (char*)(ret) + sig_header_size);
1883 ret->ret = (MonoType *)end_of_header;
1884 *ret->ret = *sig->ret;
1890 static MonoMethodSignature*
1891 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1893 return mono_metadata_signature_dup_internal_with_padding (image, mp, sig, 0);
1896 * signature_dup_add_this:
1898 * Make a copy of @sig, adding an explicit this argument.
1900 MonoMethodSignature*
1901 mono_metadata_signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
1903 MonoMethodSignature *ret;
1904 ret = mono_metadata_signature_dup_internal_with_padding (image, NULL, sig, sizeof (MonoType *));
1906 ret->param_count = sig->param_count + 1;
1907 ret->hasthis = FALSE;
1909 for (int i = sig->param_count - 1; i >= 0; i --)
1910 ret->params [i + 1] = sig->params [i];
1911 ret->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
1913 for (int i = sig->param_count - 1; i >= 0; i --)
1914 g_assert(ret->params [i + 1]->type == sig->params [i]->type && ret->params [i+1]->type != MONO_TYPE_END);
1915 g_assert (ret->ret->type == sig->ret->type && ret->ret->type != MONO_TYPE_END);
1922 MonoMethodSignature*
1923 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1925 MonoMethodSignature *ret = mono_metadata_signature_dup_internal (image, NULL, sig);
1927 for (int i = 0 ; i < sig->param_count; i ++)
1928 g_assert(ret->params [i]->type == sig->params [i]->type);
1929 g_assert (ret->ret->type == sig->ret->type);
1934 /*The mempool is accessed without synchronization*/
1935 MonoMethodSignature*
1936 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1938 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1942 * mono_metadata_signature_dup:
1943 * @sig: method signature
1945 * Duplicate an existing MonoMethodSignature so it can be modified.
1946 * This is a Mono runtime internal function.
1948 * Returns: the new MonoMethodSignature structure.
1950 MonoMethodSignature*
1951 mono_metadata_signature_dup (MonoMethodSignature *sig)
1953 return mono_metadata_signature_dup_full (NULL, sig);
1957 * mono_metadata_signature_size:
1959 * Return the amount of memory allocated to SIG.
1962 mono_metadata_signature_size (MonoMethodSignature *sig)
1964 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1968 * mono_metadata_parse_method_signature:
1969 * @m: metadata context
1970 * @generic_container: generics container
1971 * @def: the MethodDef index or 0 for Ref signatures.
1972 * @ptr: pointer to the signature metadata representation
1973 * @rptr: pointer updated to match the end of the decoded stream
1975 * Decode a method signature stored at @ptr.
1976 * This is a Mono runtime internal function.
1978 * LOCKING: Assumes the loader lock is held.
1980 * Returns: a MonoMethodSignature describing the signature.
1982 MonoMethodSignature *
1983 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1984 int def, const char *ptr, const char **rptr, MonoError *error)
1986 MonoMethodSignature *method;
1987 int i, *pattrs = NULL;
1988 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1989 guint32 gen_param_count = 0;
1990 gboolean is_open = FALSE;
1992 mono_error_init (error);
1995 gen_param_count = 1;
2000 call_convention = *ptr & 0x0F;
2002 if (gen_param_count)
2003 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
2004 param_count = mono_metadata_decode_value (ptr, &ptr);
2007 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 */
2009 method = mono_metadata_signature_alloc (m, param_count);
2010 method->hasthis = hasthis;
2011 method->explicit_this = explicit_this;
2012 method->call_convention = call_convention;
2013 method->generic_param_count = gen_param_count;
2015 if (call_convention != 0xa) {
2016 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
2018 mono_metadata_free_method_signature (method);
2020 if (mono_loader_get_last_error ())
2021 mono_error_set_from_loader_error (error);
2023 mono_error_set_bad_image (error, m, "Could not parse return type signature");
2026 is_open = mono_class_is_open_constructed_type (method->ret);
2029 for (i = 0; i < method->param_count; ++i) {
2030 if (*ptr == MONO_TYPE_SENTINEL) {
2031 if (method->call_convention != MONO_CALL_VARARG || def) {
2032 mono_loader_assert_no_error ();
2033 mono_error_set_bad_image (error, m, "Found sentinel for methoddef or no vararg");
2037 if (method->sentinelpos >= 0) {
2038 mono_loader_assert_no_error ();
2039 mono_error_set_bad_image (error, m, "Found sentinel twice in the same signature.");
2043 method->sentinelpos = i;
2046 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
2047 if (!method->params [i]) {
2048 if (mono_loader_get_last_error ())
2049 mono_error_set_from_loader_error (error);
2051 mono_error_set_bad_image (error, m, "Could not parse type argument %d on method signature", i);
2052 mono_metadata_free_method_signature (method);
2057 is_open = mono_class_is_open_constructed_type (method->params [i]);
2060 /* The sentinel could be missing if the caller does not pass any additional arguments */
2061 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
2062 method->sentinelpos = method->param_count;
2064 method->has_type_parameters = is_open;
2066 if (def && (method->call_convention == MONO_CALL_VARARG))
2067 method->sentinelpos = method->param_count;
2074 * Add signature to a cache and increase ref count...
2077 mono_loader_assert_no_error ();
2082 * mono_metadata_parse_method_signature:
2083 * @m: metadata context
2084 * @def: the MethodDef index or 0 for Ref signatures.
2085 * @ptr: pointer to the signature metadata representation
2086 * @rptr: pointer updated to match the end of the decoded stream
2088 * Decode a method signature stored at @ptr.
2089 * This is a Mono runtime internal function.
2091 * LOCKING: Assumes the loader lock is held.
2093 * Returns: a MonoMethodSignature describing the signature.
2095 MonoMethodSignature *
2096 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
2099 MonoMethodSignature *ret;
2100 ret = mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr, &error);
2102 mono_loader_set_error_from_mono_error (&error);
2103 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
2109 * mono_metadata_free_method_signature:
2110 * @sig: signature to destroy
2112 * Free the memory allocated in the signature @sig.
2113 * This method needs to be robust and work also on partially-built
2114 * signatures, so it does extra checks.
2117 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2119 /* Everything is allocated from mempools */
2123 mono_metadata_free_type (sig->ret);
2124 for (i = 0; i < sig->param_count; ++i) {
2125 if (sig->params [i])
2126 mono_metadata_free_type (sig->params [i]);
2132 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2136 /* Allocated in inflate_generic_signature () */
2138 mono_metadata_free_type (sig->ret);
2139 for (i = 0; i < sig->param_count; ++i) {
2140 if (sig->params [i])
2141 mono_metadata_free_type (sig->params [i]);
2147 inflated_method_equal (gconstpointer a, gconstpointer b)
2149 const MonoMethodInflated *ma = a;
2150 const MonoMethodInflated *mb = b;
2151 if (ma->declaring != mb->declaring)
2153 if (ma->method.method.is_mb_open != mb->method.method.is_mb_open)
2155 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2159 inflated_method_hash (gconstpointer a)
2161 const MonoMethodInflated *ma = a;
2162 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring)) + ma->method.method.is_mb_open;
2166 inflated_signature_equal (gconstpointer a, gconstpointer b)
2168 const MonoInflatedMethodSignature *sig1 = a;
2169 const MonoInflatedMethodSignature *sig2 = b;
2171 /* sig->sig is assumed to be canonized */
2172 if (sig1->sig != sig2->sig)
2174 /* The generic instances are canonized */
2175 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2179 inflated_signature_hash (gconstpointer a)
2181 const MonoInflatedMethodSignature *sig = a;
2183 /* sig->sig is assumed to be canonized */
2184 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2188 dump_ginst (MonoGenericInst *ginst)
2193 g_print ("Ginst: <");
2194 for (i = 0; i < ginst->type_argc; ++i) {
2197 name = mono_type_get_name (ginst->type_argv [i]);
2198 g_print ("%s", name);
2204 static gboolean type_in_image (MonoType *type, MonoImage *image);
2207 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2209 gpointer iter = NULL;
2212 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2213 if (type_in_image (p, image))
2216 return type_in_image (mono_signature_get_return_type (sig), image);
2220 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2224 for (i = 0; i < ginst->type_argc; ++i) {
2225 if (type_in_image (ginst->type_argv [i], image))
2233 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2235 return gclass->container_class->image == image ||
2236 ginst_in_image (gclass->context.class_inst, image);
2240 type_in_image (MonoType *type, MonoImage *image)
2243 switch (type->type) {
2244 case MONO_TYPE_GENERICINST:
2245 return gclass_in_image (type->data.generic_class, image);
2247 type = type->data.type;
2249 case MONO_TYPE_SZARRAY:
2250 type = &type->data.klass->byval_arg;
2252 case MONO_TYPE_ARRAY:
2253 type = &type->data.array->eklass->byval_arg;
2255 case MONO_TYPE_FNPTR:
2256 return signature_in_image (type->data.method, image);
2257 case MONO_TYPE_VAR: {
2258 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2260 g_assert (!container->is_method);
2262 * FIXME: The following check is here solely
2263 * for monodis, which uses the internal
2265 * mono_metadata_load_generic_params(). The
2266 * caller of that function needs to fill in
2267 * owner->klass or owner->method of the
2268 * returned struct, but monodis doesn't do
2269 * that. The image unloading depends on that,
2270 * however, so a crash results without this
2273 if (!container->owner.klass)
2274 return container->image == image;
2275 return container->owner.klass->image == image;
2277 return type->data.generic_param->image == image;
2280 case MONO_TYPE_MVAR: {
2281 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2282 if (type->data.generic_param->image == image)
2285 g_assert (container->is_method);
2286 if (!container->owner.method)
2287 /* RefEmit created generic param whose method is not finished */
2288 return container->image == image;
2289 return container->owner.method->klass->image == image;
2291 return type->data.generic_param->image == image;
2295 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2296 return image == mono_class_from_mono_type (type)->image;
2301 image_sets_lock (void)
2303 mono_mutex_lock (&image_sets_mutex);
2307 image_sets_unlock (void)
2309 mono_mutex_unlock (&image_sets_mutex);
2315 * Return a MonoImageSet representing the set of images in IMAGES.
2317 static MonoImageSet*
2318 get_image_set (MonoImage **images, int nimages)
2325 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2326 return mscorlib_image_set;
2328 /* Happens with empty generic instances */
2330 return mscorlib_image_set;
2335 image_sets = g_ptr_array_new ();
2337 if (images [0] == mono_defaults.corlib && nimages > 1)
2338 l = images [1]->image_sets;
2340 l = images [0]->image_sets;
2343 for (; l; l = l->next) {
2346 if (set->nimages == nimages) {
2347 for (j = 0; j < nimages; ++j) {
2348 for (k = 0; k < nimages; ++k)
2349 if (set->images [k] == images [j])
2363 set = g_new0 (MonoImageSet, 1);
2364 set->nimages = nimages;
2365 set->images = g_new0 (MonoImage*, nimages);
2366 mono_mutex_init_recursive (&set->lock);
2367 for (i = 0; i < nimages; ++i)
2368 set->images [i] = images [i];
2369 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2370 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2371 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2372 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2374 for (i = 0; i < nimages; ++i)
2375 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2377 g_ptr_array_add (image_sets, set);
2380 if (nimages == 1 && images [0] == mono_defaults.corlib) {
2381 mono_memory_barrier ();
2382 mscorlib_image_set = set;
2385 image_sets_unlock ();
2391 delete_image_set (MonoImageSet *set)
2395 g_hash_table_destroy (set->gclass_cache);
2396 g_hash_table_destroy (set->ginst_cache);
2397 g_hash_table_destroy (set->gmethod_cache);
2398 g_hash_table_destroy (set->gsignature_cache);
2400 if (set->runtime_invoke_cache)
2401 g_hash_table_destroy (set->runtime_invoke_cache);
2402 if (set->delegate_invoke_cache)
2403 g_hash_table_destroy (set->delegate_invoke_cache);
2404 if (set->delegate_begin_invoke_cache)
2405 g_hash_table_destroy (set->delegate_begin_invoke_cache);
2406 if (set->delegate_end_invoke_cache)
2407 g_hash_table_destroy (set->delegate_end_invoke_cache);
2408 if (set->synchronized_cache)
2409 g_hash_table_destroy (set->synchronized_cache);
2410 if (set->delegate_abstract_invoke_cache)
2411 g_hash_table_destroy (set->delegate_abstract_invoke_cache);
2412 if (set->runtime_invoke_direct_cache)
2413 g_hash_table_destroy (set->runtime_invoke_direct_cache);
2414 if (set->managed_wrapper_cache)
2415 g_hash_table_destroy (set->managed_wrapper_cache);
2416 if (set->native_wrapper_cache)
2417 g_hash_table_destroy (set->native_wrapper_cache);
2418 if (set->native_wrapper_aot_cache)
2419 g_hash_table_destroy (set->native_wrapper_aot_cache);
2420 if (set->native_wrapper_check_cache)
2421 g_hash_table_destroy (set->native_wrapper_check_cache);
2422 if (set->native_wrapper_aot_check_cache)
2423 g_hash_table_destroy (set->native_wrapper_aot_check_cache);
2424 if (set->native_func_wrapper_aot_cache)
2425 g_hash_table_destroy (set->native_func_wrapper_aot_cache);
2426 if (set->remoting_invoke_cache)
2427 g_hash_table_destroy (set->remoting_invoke_cache);
2428 if (set->unbox_wrapper_cache)
2429 g_hash_table_destroy (set->unbox_wrapper_cache);
2430 if (set->cominterop_invoke_cache)
2431 g_hash_table_destroy (set->cominterop_invoke_cache);
2432 if (set->cominterop_wrapper_cache)
2433 g_hash_table_destroy (set->cominterop_wrapper_cache);
2434 if (set->thunk_invoke_cache)
2435 g_hash_table_destroy (set->thunk_invoke_cache);
2439 for (i = 0; i < set->nimages; ++i)
2440 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2442 g_ptr_array_remove (image_sets, set);
2444 image_sets_unlock ();
2447 mono_mempool_destroy (set->mempool);
2448 g_free (set->images);
2449 mono_mutex_destroy (&set->lock);
2454 mono_image_set_lock (MonoImageSet *set)
2456 mono_mutex_lock (&set->lock);
2460 mono_image_set_unlock (MonoImageSet *set)
2462 mono_mutex_unlock (&set->lock);
2466 mono_image_set_alloc (MonoImageSet *set, guint size)
2470 mono_image_set_lock (set);
2472 set->mempool = mono_mempool_new_size (1024);
2473 res = mono_mempool_alloc (set->mempool, size);
2474 mono_image_set_unlock (set);
2480 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2484 mono_image_set_lock (set);
2486 set->mempool = mono_mempool_new_size (1024);
2487 res = mono_mempool_alloc0 (set->mempool, size);
2488 mono_image_set_unlock (set);
2494 mono_image_set_strdup (MonoImageSet *set, const char *s)
2498 mono_image_set_lock (set);
2500 set->mempool = mono_mempool_new_size (1024);
2501 res = mono_mempool_strdup (set->mempool, s);
2502 mono_image_set_unlock (set);
2508 * Structure used by the collect_..._images functions to store the image list.
2511 MonoImage *image_buf [64];
2513 int nimages, images_len;
2517 collect_data_init (CollectData *data)
2519 data->images = data->image_buf;
2520 data->images_len = 64;
2525 collect_data_free (CollectData *data)
2527 if (data->images != data->image_buf)
2528 g_free (data->images);
2532 enlarge_data (CollectData *data)
2534 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2535 MonoImage **d = g_new (MonoImage *, new_len);
2538 g_assert_not_reached ();
2539 memcpy (d, data->images, data->images_len);
2540 if (data->images != data->image_buf)
2541 g_free (data->images);
2543 data->images_len = new_len;
2547 add_image (MonoImage *image, CollectData *data)
2551 /* The arrays are small, so use a linear search instead of a hash table */
2552 for (i = 0; i < data->nimages; ++i)
2553 if (data->images [i] == image)
2556 if (data->nimages == data->images_len)
2557 enlarge_data (data);
2559 data->images [data->nimages ++] = image;
2563 collect_type_images (MonoType *type, CollectData *data);
2566 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2570 for (i = 0; i < ginst->type_argc; ++i) {
2571 collect_type_images (ginst->type_argv [i], data);
2576 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2578 add_image (gclass->container_class->image, data);
2579 if (gclass->context.class_inst)
2580 collect_ginst_images (gclass->context.class_inst, data);
2584 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2586 gpointer iter = NULL;
2589 collect_type_images (mono_signature_get_return_type (sig), data);
2590 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2591 collect_type_images (p, data);
2595 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2597 collect_signature_images (sig->sig, data);
2598 if (sig->context.class_inst)
2599 collect_ginst_images (sig->context.class_inst, data);
2600 if (sig->context.method_inst)
2601 collect_ginst_images (sig->context.method_inst, data);
2605 collect_method_images (MonoMethodInflated *method, CollectData *data)
2607 MonoMethod *m = method->declaring;
2609 add_image (method->declaring->klass->image, data);
2610 if (method->context.class_inst)
2611 collect_ginst_images (method->context.class_inst, data);
2612 if (method->context.method_inst)
2613 collect_ginst_images (method->context.method_inst, data);
2615 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2617 if (image_is_dynamic (m->klass->image))
2618 collect_signature_images (mono_method_signature (m), data);
2622 collect_type_images (MonoType *type, CollectData *data)
2625 switch (type->type) {
2626 case MONO_TYPE_GENERICINST:
2627 collect_gclass_images (type->data.generic_class, data);
2630 type = type->data.type;
2632 case MONO_TYPE_SZARRAY:
2633 type = &type->data.klass->byval_arg;
2635 case MONO_TYPE_ARRAY:
2636 type = &type->data.array->eklass->byval_arg;
2638 case MONO_TYPE_FNPTR:
2639 //return signature_in_image (type->data.method, image);
2640 g_assert_not_reached ();
2641 case MONO_TYPE_VAR: {
2642 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2644 g_assert (!container->is_method);
2646 * FIXME: The following check is here solely
2647 * for monodis, which uses the internal
2649 * mono_metadata_load_generic_params(). The
2650 * caller of that function needs to fill in
2651 * owner->klass or owner->method of the
2652 * returned struct, but monodis doesn't do
2653 * that. The image unloading depends on that,
2654 * however, so a crash results without this
2657 if (!container->owner.klass)
2658 add_image (container->image, data);
2660 add_image (container->owner.klass->image, data);
2662 add_image (type->data.generic_param->image, data);
2666 case MONO_TYPE_MVAR: {
2667 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2668 if (type->data.generic_param->image)
2669 add_image (type->data.generic_param->image, data);
2671 if (!container->owner.method) {
2672 /* RefEmit created generic param whose method is not finished */
2673 add_image (container->image, data);
2675 g_assert (container->is_method);
2676 add_image (container->owner.method->klass->image, data);
2679 add_image (type->data.generic_param->image, data);
2683 case MONO_TYPE_CLASS:
2684 case MONO_TYPE_VALUETYPE:
2685 add_image (mono_class_from_mono_type (type)->image, data);
2688 add_image (mono_defaults.corlib, data);
2695 } CleanForImageUserData;
2698 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2700 MonoGenericClass *gclass = key;
2701 CleanForImageUserData *user_data = data;
2703 g_assert (gclass_in_image (gclass, user_data->image));
2705 user_data->list = g_slist_prepend (user_data->list, gclass);
2710 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2712 MonoGenericInst *ginst = key;
2713 CleanForImageUserData *user_data = data;
2715 // This doesn't work during corlib compilation
2716 //g_assert (ginst_in_image (ginst, user_data->image));
2718 user_data->list = g_slist_prepend (user_data->list, ginst);
2723 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2725 MonoImage *image = data;
2726 MonoMethodInflated *method = key;
2729 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2730 g_assert (method->declaring->klass->image == image ||
2731 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2732 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2738 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2740 MonoImage *image = data;
2741 MonoInflatedMethodSignature *sig = key;
2743 return signature_in_image (sig->sig, image) ||
2744 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2745 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2749 check_gmethod (gpointer key, gpointer value, gpointer data)
2751 MonoMethodInflated *method = key;
2752 MonoImage *image = data;
2754 if (method->context.class_inst)
2755 g_assert (!ginst_in_image (method->context.class_inst, image));
2756 if (method->context.method_inst)
2757 g_assert (!ginst_in_image (method->context.method_inst, image));
2758 if (((MonoMethod*)method)->signature)
2759 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2765 * Run a consistency check on the image set data structures.
2767 static G_GNUC_UNUSED void
2768 check_image_sets (MonoImage *image)
2771 GSList *l = image->image_sets;
2776 for (i = 0; i < image_sets->len; ++i) {
2777 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2779 if (!g_slist_find (l, set)) {
2780 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2786 mono_metadata_clean_for_image (MonoImage *image)
2788 CleanForImageUserData ginst_data, gclass_data;
2789 GSList *l, *set_list;
2791 //check_image_sets (image);
2794 * The data structures could reference each other so we delete them in two phases.
2795 * This is required because of the hashing functions in gclass/ginst_cache.
2797 ginst_data.image = gclass_data.image = image;
2798 ginst_data.list = gclass_data.list = NULL;
2800 /* Collect the items to delete */
2801 /* delete_image_set () modifies the lists so make a copy */
2802 for (l = image->image_sets; l; l = l->next) {
2803 MonoImageSet *set = l->data;
2805 mono_image_set_lock (set);
2806 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2807 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2808 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2809 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2810 mono_image_set_unlock (set);
2813 /* Delete the removed items */
2814 for (l = ginst_data.list; l; l = l->next)
2815 free_generic_inst (l->data);
2816 for (l = gclass_data.list; l; l = l->next)
2817 free_generic_class (l->data);
2818 g_slist_free (ginst_data.list);
2819 g_slist_free (gclass_data.list);
2820 /* delete_image_set () modifies the lists so make a copy */
2821 set_list = g_slist_copy (image->image_sets);
2822 for (l = set_list; l; l = l->next) {
2823 MonoImageSet *set = l->data;
2825 delete_image_set (set);
2827 g_slist_free (set_list);
2831 free_inflated_method (MonoMethodInflated *imethod)
2834 MonoMethod *method = (MonoMethod*)imethod;
2836 mono_marshal_free_inflated_wrappers (method);
2838 if (method->signature)
2839 mono_metadata_free_inflated_signature (method->signature);
2841 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))) {
2842 MonoMethodHeader *header = imethod->header;
2845 /* Allocated in inflate_generic_header () */
2846 for (i = 0; i < header->num_locals; ++i)
2847 mono_metadata_free_type (header->locals [i]);
2848 g_free (header->clauses);
2857 free_generic_inst (MonoGenericInst *ginst)
2861 /* The ginst itself is allocated from the image set mempool */
2862 for (i = 0; i < ginst->type_argc; ++i)
2863 mono_metadata_free_type (ginst->type_argv [i]);
2867 free_generic_class (MonoGenericClass *gclass)
2869 /* The gclass itself is allocated from the image set mempool */
2870 if (gclass->is_dynamic)
2871 mono_reflection_free_dynamic_generic_class (gclass);
2872 if (gclass->cached_class && gclass->cached_class->interface_id)
2873 mono_unload_interface_id (gclass->cached_class);
2877 free_inflated_signature (MonoInflatedMethodSignature *sig)
2879 mono_metadata_free_inflated_signature (sig->sig);
2884 * mono_metadata_get_inflated_signature:
2886 * Given an inflated signature and a generic context, return a canonical copy of the
2887 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2889 MonoMethodSignature *
2890 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2892 MonoInflatedMethodSignature helper;
2893 MonoInflatedMethodSignature *res;
2898 helper.context.class_inst = context->class_inst;
2899 helper.context.method_inst = context->method_inst;
2901 collect_data_init (&data);
2903 collect_inflated_signature_images (&helper, &data);
2905 set = get_image_set (data.images, data.nimages);
2907 collect_data_free (&data);
2909 mono_image_set_lock (set);
2911 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2913 res = g_new0 (MonoInflatedMethodSignature, 1);
2915 res->context.class_inst = context->class_inst;
2916 res->context.method_inst = context->method_inst;
2917 g_hash_table_insert (set->gsignature_cache, res, res);
2920 mono_image_set_unlock (set);
2926 mono_metadata_get_image_set_for_method (MonoMethodInflated *method)
2929 CollectData image_set_data;
2931 collect_data_init (&image_set_data);
2932 collect_method_images (method, &image_set_data);
2933 set = get_image_set (image_set_data.images, image_set_data.nimages);
2934 collect_data_free (&image_set_data);
2940 * mono_metadata_get_generic_inst:
2942 * Given a list of types, return a MonoGenericInst that represents that list.
2943 * The returned MonoGenericInst has its own copy of the list of types. The list
2944 * passed in the argument can be freed, modified or disposed of.
2948 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2950 MonoGenericInst *ginst;
2953 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2957 for (i = 0; i < type_argc; ++i)
2958 if (mono_class_is_open_constructed_type (type_argv [i]))
2960 is_open = (i < type_argc);
2962 ginst = g_alloca (size);
2963 memset (ginst, 0, sizeof (MonoGenericInst));
2964 ginst->is_open = is_open;
2965 ginst->type_argc = type_argc;
2966 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2968 collect_data_init (&data);
2970 collect_ginst_images (ginst, &data);
2972 set = get_image_set (data.images, data.nimages);
2974 collect_data_free (&data);
2976 mono_image_set_lock (set);
2978 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2980 ginst = mono_image_set_alloc0 (set, size);
2981 #ifndef MONO_SMALL_CONFIG
2982 ginst->id = ++next_generic_inst_id;
2984 ginst->is_open = is_open;
2985 ginst->type_argc = type_argc;
2987 for (i = 0; i < type_argc; ++i)
2988 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2990 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2993 mono_image_set_unlock (set);
2998 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
3000 MonoGenericContainer *container = container_class->generic_container;
3002 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
3004 return inst == container->context.class_inst;
3008 * mono_metadata_lookup_generic_class:
3010 * Returns a MonoGenericClass with the given properties.
3014 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
3016 MonoGenericClass *gclass;
3017 MonoGenericClass helper;
3018 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
3022 helper.container_class = container_class;
3023 helper.context.class_inst = inst;
3024 helper.context.method_inst = NULL;
3025 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
3026 helper.is_tb_open = is_tb_open;
3027 helper.cached_class = NULL;
3029 collect_data_init (&data);
3031 collect_gclass_images (&helper, &data);
3033 set = get_image_set (data.images, data.nimages);
3035 collect_data_free (&data);
3037 mono_image_set_lock (set);
3039 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
3041 /* A tripwire just to keep us honest */
3042 g_assert (!helper.cached_class);
3045 mono_image_set_unlock (set);
3050 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
3051 gclass = &dgclass->generic_class;
3052 gclass->is_dynamic = 1;
3054 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
3057 gclass->is_tb_open = is_tb_open;
3058 gclass->container_class = container_class;
3059 gclass->context.class_inst = inst;
3060 gclass->context.method_inst = NULL;
3061 gclass->owner = set;
3062 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
3063 gclass->cached_class = container_class;
3065 g_hash_table_insert (set->gclass_cache, gclass, gclass);
3067 mono_image_set_unlock (set);
3073 * mono_metadata_inflate_generic_inst:
3075 * Instantiate the generic instance @ginst with the context @context.
3076 * Check @error for success.
3080 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
3082 MonoType **type_argv;
3083 MonoGenericInst *nginst = NULL;
3086 mono_error_init (error);
3088 if (!ginst->is_open)
3091 type_argv = g_new0 (MonoType*, ginst->type_argc);
3093 for (i = 0; i < ginst->type_argc; i++) {
3094 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
3095 if (!mono_error_ok (error))
3100 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
3103 for (i = 0; i < count; i++)
3104 mono_metadata_free_type (type_argv [i]);
3111 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
3112 int count, const char *ptr, const char **rptr)
3114 MonoType **type_argv;
3115 MonoGenericInst *ginst;
3118 type_argv = g_new0 (MonoType*, count);
3120 for (i = 0; i < count; i++) {
3121 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
3132 ginst = mono_metadata_get_generic_inst (count, type_argv);
3140 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3141 const char *ptr, const char **rptr)
3143 MonoGenericInst *inst;
3148 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
3152 gklass = mono_class_from_mono_type (gtype);
3153 if (!gklass->generic_container)
3156 count = mono_metadata_decode_value (ptr, &ptr);
3157 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
3164 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3170 * @gc: The generic container to normalize
3171 * @type: The kind of generic parameters the resulting generic-container should contain
3174 static MonoGenericContainer *
3175 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3177 gboolean is_var = (type == MONO_TYPE_VAR);
3181 g_assert (is_var || type == MONO_TYPE_MVAR);
3184 if (gc->is_method || gc->parent)
3186 * The current MonoGenericContainer is a generic method -> its `parent'
3187 * points to the containing class'es container.
3196 * mono_metadata_parse_generic_param:
3197 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3198 * see mono_metadata_parse_type_full() for details.
3199 * Internal routine to parse a generic type parameter.
3200 * LOCKING: Acquires the loader lock
3202 static MonoGenericParam *
3203 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3204 MonoTypeEnum type, const char *ptr, const char **rptr)
3206 int index = mono_metadata_decode_value (ptr, &ptr);
3210 generic_container = select_container (generic_container, type);
3211 if (!generic_container) {
3212 /* Create dummy MonoGenericParam */
3213 MonoGenericParam *param;
3215 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3222 if (index >= generic_container->type_argc)
3225 return mono_generic_container_get_param (generic_container, index);
3229 * mono_metadata_get_shared_type:
3231 * Return a shared instance of TYPE, if available, NULL otherwise.
3232 * Shared MonoType instances help save memory. Their contents should not be modified
3233 * by the caller. They do not need to be freed as their lifetime is bound by either
3234 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3235 * instance they are embedded in. If they are freed, they should be freed using
3236 * mono_metadata_free_type () instead of g_free ().
3239 mono_metadata_get_shared_type (MonoType *type)
3243 /* No need to use locking since nobody is modifying the hash table */
3244 if ((cached = g_hash_table_lookup (type_cache, type)))
3247 switch (type->type){
3248 case MONO_TYPE_CLASS:
3249 case MONO_TYPE_VALUETYPE:
3250 if (type == &type->data.klass->byval_arg)
3252 if (type == &type->data.klass->this_arg)
3263 compare_type_literals (int class_type, int type_type)
3265 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3266 * See mcs/test/gtest-440. and #650936.
3267 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3271 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3274 if (class_type == type_type)
3277 if (type_type == MONO_TYPE_CLASS)
3278 return class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT;
3280 g_assert (type_type == MONO_TYPE_VALUETYPE);
3281 switch (class_type) {
3282 case MONO_TYPE_BOOLEAN:
3283 case MONO_TYPE_CHAR:
3296 case MONO_TYPE_CLASS:
3304 * do_mono_metadata_parse_type:
3305 * @type: MonoType to be filled in with the return value
3307 * @generic_context: generics_context
3308 * @transient: whenever to allocate data from the heap
3309 * @ptr: pointer to the encoded type
3310 * @rptr: pointer where the end of the encoded type is saved
3312 * Internal routine used to "fill" the contents of @type from an
3313 * allocated pointer. This is done this way to avoid doing too
3314 * many mini-allocations (particularly for the MonoFieldType which
3315 * most of the time is just a MonoType, but sometimes might be augmented).
3317 * This routine is used by mono_metadata_parse_type and
3318 * mono_metadata_parse_field_type
3320 * This extracts a Type as specified in Partition II (22.2.12)
3322 * Returns: FALSE if the type could not be loaded
3325 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3326 gboolean transient, const char *ptr, const char **rptr)
3329 type->type = mono_metadata_decode_value (ptr, &ptr);
3331 switch (type->type){
3332 case MONO_TYPE_VOID:
3333 case MONO_TYPE_BOOLEAN:
3334 case MONO_TYPE_CHAR:
3347 case MONO_TYPE_STRING:
3348 case MONO_TYPE_OBJECT:
3349 case MONO_TYPE_TYPEDBYREF:
3351 case MONO_TYPE_VALUETYPE:
3352 case MONO_TYPE_CLASS: {
3356 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3357 class = mono_class_get_checked (m, token, &error);
3358 type->data.klass = class;
3360 mono_loader_set_error_from_mono_error (&error);
3361 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3364 if (!compare_type_literals (class->byval_arg.type, type->type))
3368 case MONO_TYPE_SZARRAY: {
3369 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
3372 type->data.klass = mono_class_from_mono_type (etype);
3373 if (!type->data.klass)
3378 type->data.type = mono_metadata_parse_type_internal (m, container, MONO_PARSE_MOD_TYPE, 0, transient, ptr, &ptr);
3379 if (!type->data.type)
3382 case MONO_TYPE_FNPTR: {
3384 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr, &error);
3385 if (!type->data.method) {
3386 mono_loader_set_error_from_mono_error (&error);
3387 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3392 case MONO_TYPE_ARRAY:
3393 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr);
3394 if (!type->data.array)
3397 case MONO_TYPE_MVAR:
3398 if (container && !container->is_method)
3401 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
3402 if (!type->data.generic_param)
3405 case MONO_TYPE_GENERICINST:
3406 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
3409 g_warning ("type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3419 * mono_metadata_free_type:
3420 * @type: type to free
3422 * Free the memory allocated for type @type which is allocated on the heap.
3425 mono_metadata_free_type (MonoType *type)
3427 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3430 switch (type->type){
3431 case MONO_TYPE_OBJECT:
3432 case MONO_TYPE_STRING:
3433 if (!type->data.klass)
3436 case MONO_TYPE_CLASS:
3437 case MONO_TYPE_VALUETYPE:
3438 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3442 mono_metadata_free_type (type->data.type);
3444 case MONO_TYPE_FNPTR:
3445 mono_metadata_free_method_signature (type->data.method);
3447 case MONO_TYPE_ARRAY:
3448 mono_metadata_free_array (type->data.array);
3459 hex_dump (const char *buffer, int base, int count)
3461 int show_header = 1;
3469 for (i = 0; i < count; i++){
3472 printf ("\n0x%08x: ", (unsigned char) base + i);
3474 printf ("%02x ", (unsigned char) (buffer [i]));
3481 * @ptr: Points to the beginning of the Section Data (25.3)
3483 static MonoExceptionClause*
3484 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3486 unsigned char sect_data_flags;
3488 guint32 sect_data_len;
3489 MonoExceptionClause* clauses = NULL;
3492 /* align on 32-bit boundary */
3493 ptr = dword_align (ptr);
3494 sect_data_flags = *ptr;
3497 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3499 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3502 sect_data_len = ptr [0];
3506 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3507 const unsigned char *p = dword_align (ptr);
3509 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3510 /* we could just store a pointer if we don't need to byteswap */
3511 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3512 for (i = 0; i < *num_clauses; ++i) {
3513 MonoExceptionClause *ec = &clauses [i];
3516 ec->flags = read32 (p);
3517 ec->try_offset = read32 (p + 4);
3518 ec->try_len = read32 (p + 8);
3519 ec->handler_offset = read32 (p + 12);
3520 ec->handler_len = read32 (p + 16);
3521 tof_value = read32 (p + 20);
3524 ec->flags = read16 (p);
3525 ec->try_offset = read16 (p + 2);
3526 ec->try_len = *(p + 4);
3527 ec->handler_offset = read16 (p + 5);
3528 ec->handler_len = *(p + 7);
3529 tof_value = read32 (p + 8);
3532 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3533 ec->data.filter_offset = tof_value;
3534 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3535 ec->data.catch_class = NULL;
3538 ec->data.catch_class = mono_class_get_checked (m, tof_value, &error);
3539 if (!mono_error_ok (&error)) {
3540 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3546 ec->data.catch_class = NULL;
3548 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3552 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3553 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3560 * mono_method_get_header_summary:
3561 * @method: The method to get the header.
3562 * @summary: Where to store the header
3565 * Returns: true if the header was properly decoded.
3568 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3574 unsigned char flags, format;
3577 /*Only the GMD has a pointer to the metadata.*/
3578 while (method->is_inflated)
3579 method = ((MonoMethodInflated*)method)->declaring;
3581 summary->code_size = 0;
3582 summary->has_clauses = FALSE;
3584 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3585 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))
3588 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3589 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3592 summary->code_size = header->code_size;
3593 summary->has_clauses = header->num_clauses > 0;
3598 idx = mono_metadata_token_index (method->token);
3599 img = method->klass->image;
3600 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3602 /*We must run the verifier since we'll be decoding it.*/
3603 if (!mono_verifier_verify_method_header (img, rva, NULL))
3606 ptr = mono_image_rva_map (img, rva);
3609 flags = *(const unsigned char *)ptr;
3610 format = flags & METHOD_HEADER_FORMAT_MASK;
3613 case METHOD_HEADER_TINY_FORMAT:
3615 summary->code_size = flags >> 2;
3617 case METHOD_HEADER_FAT_FORMAT:
3618 fat_flags = read16 (ptr);
3620 summary->code_size = read32 (ptr);
3621 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3622 summary->has_clauses = TRUE;
3631 * mono_metadata_parse_mh_full:
3632 * @m: metadata context
3633 * @generic_context: generics context
3634 * @ptr: pointer to the method header.
3636 * Decode the method header at @ptr, including pointer to the IL code,
3637 * info about local variables and optional exception tables.
3638 * This is a Mono runtime internal function.
3640 * LOCKING: Acquires the loader lock.
3642 * Returns: a transient MonoMethodHeader allocated from the heap.
3645 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3647 MonoMethodHeader *mh = NULL;
3648 unsigned char flags = *(const unsigned char *) ptr;
3649 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3651 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3652 const unsigned char *code;
3653 MonoExceptionClause* clauses = NULL;
3654 int num_clauses = 0;
3655 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3656 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3658 g_return_val_if_fail (ptr != NULL, NULL);
3661 case METHOD_HEADER_TINY_FORMAT:
3662 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3665 mh->is_transient = TRUE;
3666 local_var_sig_tok = 0;
3667 mh->code_size = flags >> 2;
3668 mh->code = (unsigned char*)ptr;
3670 case METHOD_HEADER_FAT_FORMAT:
3671 fat_flags = read16 (ptr);
3673 max_stack = read16 (ptr);
3675 code_size = read32 (ptr);
3677 local_var_sig_tok = read32 (ptr);
3680 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3685 code = (unsigned char*)ptr;
3687 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3691 * There are more sections
3693 ptr = (char*)code + code_size;
3699 if (local_var_sig_tok) {
3700 int idx = (local_var_sig_tok & 0xffffff)-1;
3701 if (idx >= t->rows || idx < 0)
3703 mono_metadata_decode_row (t, idx, cols, 1);
3705 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3708 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3709 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3710 if (local_var_sig_tok) {
3711 const char *locals_ptr;
3714 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3715 mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3716 if (*locals_ptr != 0x07)
3717 g_warning ("wrong signature for locals blob");
3719 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3720 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3721 mh->num_locals = len;
3722 for (i = 0; i < len; ++i) {
3723 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3724 MONO_PARSE_LOCAL, 0, TRUE, locals_ptr, &locals_ptr);
3725 if (!mh->locals [i])
3729 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3732 mh->code_size = code_size;
3733 mh->max_stack = max_stack;
3734 mh->is_transient = TRUE;
3735 mh->init_locals = init_locals;
3737 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3738 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3740 mh->clauses = clausesp;
3741 mh->num_clauses = num_clauses;
3752 * mono_metadata_parse_mh:
3753 * @generic_context: generics context
3754 * @ptr: pointer to the method header.
3756 * Decode the method header at @ptr, including pointer to the IL code,
3757 * info about local variables and optional exception tables.
3759 * Returns: a transient MonoMethodHeader allocated from the heap.
3762 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3764 return mono_metadata_parse_mh_full (m, NULL, ptr);
3768 * mono_metadata_free_mh:
3769 * @mh: a method header
3771 * Free the memory allocated for the method header.
3774 mono_metadata_free_mh (MonoMethodHeader *mh)
3778 /* If it is not transient it means it's part of a wrapper method,
3779 * or a SRE-generated method, so the lifetime in that case is
3780 * dictated by the method's own lifetime
3782 if (mh->is_transient) {
3783 for (i = 0; i < mh->num_locals; ++i)
3784 mono_metadata_free_type (mh->locals [i]);
3790 * mono_method_header_get_code:
3791 * @header: a MonoMethodHeader pointer
3792 * @code_size: memory location for returning the code size
3793 * @max_stack: memory location for returning the max stack
3795 * Method header accessor to retreive info about the IL code properties:
3796 * a pointer to the IL code itself, the size of the code and the max number
3797 * of stack slots used by the code.
3799 * Returns: pointer to the IL code represented by the method header.
3801 const unsigned char*
3802 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3805 *code_size = header->code_size;
3807 *max_stack = header->max_stack;
3808 return header->code;
3812 * mono_method_header_get_locals:
3813 * @header: a MonoMethodHeader pointer
3814 * @num_locals: memory location for returning the number of local variables
3815 * @init_locals: memory location for returning the init_locals flag
3817 * Method header accessor to retreive info about the local variables:
3818 * an array of local types, the number of locals and whether the locals
3819 * are supposed to be initialized to 0 on method entry
3821 * Returns: pointer to an array of types of the local variables
3824 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3827 *num_locals = header->num_locals;
3829 *init_locals = header->init_locals;
3830 return header->locals;
3834 * mono_method_header_get_num_clauses:
3835 * @header: a MonoMethodHeader pointer
3837 * Method header accessor to retreive the number of exception clauses.
3839 * Returns: the number of exception clauses present
3842 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3844 return header->num_clauses;
3848 * mono_method_header_get_clauses:
3849 * @header: a MonoMethodHeader pointer
3850 * @method: MonoMethod the header belongs to
3851 * @iter: pointer to a iterator
3852 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3854 * Get the info about the exception clauses in the method. Set *iter to NULL to
3855 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3856 * At each iteration, the structure pointed to by clause if filled with the
3857 * exception clause information.
3859 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3863 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3865 MonoExceptionClause *sc;
3866 /* later we'll be able to use this interface to parse the clause info on demand,
3867 * without allocating anything.
3869 if (!iter || !header->num_clauses)
3872 *iter = sc = header->clauses;
3878 if (sc < header->clauses + header->num_clauses) {
3887 * mono_metadata_parse_field_type:
3888 * @m: metadata context to extract information from
3889 * @ptr: pointer to the field signature
3890 * @rptr: pointer updated to match the end of the decoded stream
3892 * Parses the field signature, and returns the type information for it.
3894 * Returns: The MonoType that was extracted from @ptr.
3897 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3899 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3903 * mono_metadata_parse_param:
3904 * @m: metadata context to extract information from
3905 * @ptr: pointer to the param signature
3906 * @rptr: pointer updated to match the end of the decoded stream
3908 * Parses the param signature, and returns the type information for it.
3910 * Returns: The MonoType that was extracted from @ptr.
3913 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3915 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3919 * mono_metadata_token_from_dor:
3920 * @dor_token: A TypeDefOrRef coded index
3922 * dor_token is a TypeDefOrRef coded index: it contains either
3923 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3924 * bits contain an index into the table.
3926 * Returns: an expanded token
3929 mono_metadata_token_from_dor (guint32 dor_index)
3933 table = dor_index & 0x03;
3934 idx = dor_index >> 2;
3937 case 0: /* TypeDef */
3938 return MONO_TOKEN_TYPE_DEF | idx;
3939 case 1: /* TypeRef */
3940 return MONO_TOKEN_TYPE_REF | idx;
3941 case 2: /* TypeSpec */
3942 return MONO_TOKEN_TYPE_SPEC | idx;
3944 g_assert_not_reached ();
3951 * We use this to pass context information to the row locator
3954 int idx; /* The index that we are trying to locate */
3955 int col_idx; /* The index in the row where idx may be stored */
3956 MonoTableInfo *t; /* pointer to the table */
3961 * How the row locator works.
3966 * ___|___------> _______
3969 * A column in the rows of table A references an index in table B.
3970 * For example A may be the TYPEDEF table and B the METHODDEF table.
3972 * Given an index in table B we want to get the row in table A
3973 * where the column n references our index in B.
3975 * In the locator_t structure:
3977 * col_idx is the column number
3978 * index is the index in table B
3979 * result will be the index in table A
3982 * Table A Table B column (in table A)
3983 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3984 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3985 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3986 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3987 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3989 * Note that we still don't support encoded indexes.
3993 typedef_locator (const void *a, const void *b)
3995 locator_t *loc = (locator_t *) a;
3996 const char *bb = (const char *) b;
3997 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3998 guint32 col, col_next;
4000 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
4006 * Need to check that the next row is valid.
4008 if (typedef_index + 1 < loc->t->rows) {
4009 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
4010 if (loc->idx >= col_next)
4013 if (col == col_next)
4017 loc->result = typedef_index;
4023 table_locator (const void *a, const void *b)
4025 locator_t *loc = (locator_t *) a;
4026 const char *bb = (const char *) b;
4027 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4030 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4032 if (loc->idx == col) {
4033 loc->result = table_index;
4043 declsec_locator (const void *a, const void *b)
4045 locator_t *loc = (locator_t *) a;
4046 const char *bb = (const char *) b;
4047 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4050 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4052 if (loc->idx == col) {
4053 loc->result = table_index;
4065 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
4066 * which contains IDX.
4069 search_ptr_table (MonoImage *image, int table, int idx)
4071 MonoTableInfo *ptrdef = &image->tables [table];
4074 /* Use a linear search to find our index in the table */
4075 for (i = 0; i < ptrdef->rows; i ++)
4076 /* All the Ptr tables have the same structure */
4077 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
4080 if (i < ptrdef->rows)
4087 * mono_metadata_typedef_from_field:
4088 * @meta: metadata context
4089 * @index: FieldDef token
4091 * Returns: the 1-based index into the TypeDef table of the type that
4092 * declared the field described by @index, or 0 if not found.
4095 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
4097 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4103 loc.idx = mono_metadata_token_index (index);
4104 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
4107 if (meta->uncompressed_metadata)
4108 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4110 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4113 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4114 return loc.result + 1;
4118 * mono_metadata_typedef_from_method:
4119 * @meta: metadata context
4120 * @index: MethodDef token
4122 * Returns: the 1-based index into the TypeDef table of the type that
4123 * declared the method described by @index. 0 if not found.
4126 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
4128 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4134 loc.idx = mono_metadata_token_index (index);
4135 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
4138 if (meta->uncompressed_metadata)
4139 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
4141 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4144 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4145 return loc.result + 1;
4149 * mono_metadata_interfaces_from_typedef_full:
4150 * @meta: metadata context
4151 * @index: typedef token
4152 * @interfaces: Out parameter used to store the interface array
4153 * @count: Out parameter used to store the number of interfaces
4154 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
4155 * @context: The generic context
4157 * The array of interfaces that the @index typedef token implements is returned in
4158 * @interfaces. The number of elements in the array is returned in @count.
4161 * Returns: TRUE on success, FALSE on failure.
4164 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context, MonoError *error)
4166 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
4169 guint32 cols [MONO_INTERFACEIMPL_SIZE];
4175 mono_error_init (error);
4180 loc.idx = mono_metadata_token_index (index);
4181 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
4184 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4189 * We may end up in the middle of the rows...
4192 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4198 while (pos < tdef->rows) {
4199 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4200 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4205 if (heap_alloc_result)
4206 result = g_new0 (MonoClass*, pos - start);
4208 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4211 while (pos < tdef->rows) {
4214 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4215 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4217 iface = mono_class_get_and_inflate_typespec_checked (
4218 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context, error);
4221 result [pos - start] = iface;
4224 *count = pos - start;
4225 *interfaces = result;
4230 * @meta: metadata context
4231 * @index: typedef token
4232 * @count: Out parameter used to store the number of interfaces
4234 * The array of interfaces that the @index typedef token implements is returned in
4235 * @interfaces. The number of elements in the array is returned in @count. The returned
4236 * array is g_malloc'd and the caller must free it.
4238 * LOCKING: Acquires the loader lock .
4240 * Returns: the interface array on success, NULL on failure.
4244 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4247 MonoClass **interfaces = NULL;
4250 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL, &error);
4251 g_assert (mono_error_ok (&error)); /* FIXME dont swallow the error */
4259 * mono_metadata_nested_in_typedef:
4260 * @meta: metadata context
4261 * @index: typedef token
4263 * Returns: the 1-based index into the TypeDef table of the type
4264 * where the type described by @index is nested.
4265 * Returns 0 if @index describes a non-nested type.
4268 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4270 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4276 loc.idx = mono_metadata_token_index (index);
4277 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4280 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4283 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4284 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4288 * mono_metadata_nesting_typedef:
4289 * @meta: metadata context
4290 * @index: typedef token
4292 * Returns: the 1-based index into the TypeDef table of the first type
4293 * that is nested inside the type described by @index. The search starts at
4294 * @start_index. returns 0 if no such type is found.
4297 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4299 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4301 guint32 class_index = mono_metadata_token_index (index);
4306 start = start_index;
4308 while (start <= tdef->rows) {
4309 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4315 if (start > tdef->rows)
4322 * mono_metadata_packing_from_typedef:
4323 * @meta: metadata context
4324 * @index: token representing a type
4326 * Returns: the info stored in the ClassLAyout table for the given typedef token
4327 * into the @packing and @size pointers.
4328 * Returns 0 if the info is not found.
4331 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4333 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4335 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4340 loc.idx = mono_metadata_token_index (index);
4341 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4344 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4347 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4349 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4351 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4353 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4354 return loc.result + 1;
4358 * mono_metadata_custom_attrs_from_index:
4359 * @meta: metadata context
4360 * @index: token representing the parent
4362 * Returns: the 1-based index into the CustomAttribute table of the first
4363 * attribute which belongs to the metadata object described by @index.
4364 * Returns 0 if no such attribute is found.
4367 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4369 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4376 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4379 /* FIXME: Index translation */
4381 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4384 /* Find the first entry by searching backwards */
4385 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4388 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4389 return loc.result + 1;
4393 * mono_metadata_declsec_from_index:
4394 * @meta: metadata context
4395 * @index: token representing the parent
4397 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4398 * attribute which belongs to the metadata object described by @index.
4399 * Returns -1 if no such attribute is found.
4402 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4404 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4411 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4414 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4417 /* Find the first entry by searching backwards */
4418 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4425 * mono_metadata_localscope_from_methoddef:
4426 * @meta: metadata context
4427 * @index: methoddef index
4429 * Returns: the 1-based index into the LocalScope table of the first
4430 * scope which belongs to the method described by @index.
4431 * Returns 0 if no such row is found.
4434 mono_metadata_localscope_from_methoddef (MonoImage *meta, guint32 index)
4436 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_LOCALSCOPE];
4443 loc.col_idx = MONO_LOCALSCOPE_METHOD;
4446 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4449 /* Find the first entry by searching backwards */
4450 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_LOCALSCOPE_METHOD) == index))
4453 return loc.result + 1;
4458 mono_backtrace (int limit)
4463 backtrace (array, limit);
4464 names = backtrace_symbols (array, limit);
4465 for (i =0; i < limit; ++i) {
4466 g_print ("\t%s\n", names [i]);
4472 static int i8_align;
4475 * mono_type_set_alignment:
4477 * Set the alignment used by runtime to layout fields etc. of type TYPE to ALIGN.
4478 * This should only be used in AOT mode since the resulting layout will not match the
4482 mono_type_set_alignment (MonoTypeEnum type, int align)
4484 /* Support only a few types whose alignment is abi dependent */
4490 g_assert_not_reached ();
4497 * @t: the type to return the size of
4499 * Returns: the number of bytes required to hold an instance of this
4503 mono_type_size (MonoType *t, int *align)
4505 MonoTypeEnum simple_type;
4512 *align = MONO_ABI_ALIGNOF (gpointer);
4513 return sizeof (gpointer);
4516 simple_type = t->type;
4518 switch (simple_type) {
4519 case MONO_TYPE_VOID:
4522 case MONO_TYPE_BOOLEAN:
4523 *align = MONO_ABI_ALIGNOF (gint8);
4527 *align = MONO_ABI_ALIGNOF (gint8);
4529 case MONO_TYPE_CHAR:
4532 *align = MONO_ABI_ALIGNOF (gint16);
4536 *align = MONO_ABI_ALIGNOF (gint32);
4539 *align = MONO_ABI_ALIGNOF (float);
4543 *align = MONO_ABI_ALIGNOF (gint64);
4546 *align = MONO_ABI_ALIGNOF (double);
4550 *align = MONO_ABI_ALIGNOF (gpointer);
4551 return sizeof (gpointer);
4552 case MONO_TYPE_STRING:
4553 *align = MONO_ABI_ALIGNOF (gpointer);
4554 return sizeof (gpointer);
4555 case MONO_TYPE_OBJECT:
4556 *align = MONO_ABI_ALIGNOF (gpointer);
4557 return sizeof (gpointer);
4558 case MONO_TYPE_VALUETYPE: {
4559 if (t->data.klass->enumtype)
4560 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4562 return mono_class_value_size (t->data.klass, (guint32*)align);
4564 case MONO_TYPE_CLASS:
4565 case MONO_TYPE_SZARRAY:
4567 case MONO_TYPE_FNPTR:
4568 case MONO_TYPE_ARRAY:
4569 *align = MONO_ABI_ALIGNOF (gpointer);
4570 return sizeof (gpointer);
4571 case MONO_TYPE_TYPEDBYREF:
4572 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4573 case MONO_TYPE_GENERICINST: {
4574 MonoGenericClass *gclass = t->data.generic_class;
4575 MonoClass *container_class = gclass->container_class;
4577 // g_assert (!gclass->inst->is_open);
4579 if (container_class->valuetype) {
4580 if (container_class->enumtype)
4581 return mono_type_size (mono_class_enum_basetype (container_class), align);
4583 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4585 *align = MONO_ABI_ALIGNOF (gpointer);
4586 return sizeof (gpointer);
4590 case MONO_TYPE_MVAR:
4591 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4592 *align = MONO_ABI_ALIGNOF (gpointer);
4593 return sizeof (gpointer);
4595 /* The gparam can only match types given by gshared_constraint */
4596 return mono_type_size (t->data.generic_param->gshared_constraint, align);
4600 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4606 * mono_type_stack_size:
4607 * @t: the type to return the size it uses on the stack
4609 * Returns: the number of bytes required to hold an instance of this
4610 * type on the runtime stack
4613 mono_type_stack_size (MonoType *t, int *align)
4615 return mono_type_stack_size_internal (t, align, FALSE);
4619 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4622 MonoTypeEnum simple_type;
4623 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4624 int stack_slot_size = sizeof (gpointer);
4625 int stack_slot_align = MONO_ABI_ALIGNOF (gpointer);
4626 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4627 int stack_slot_size = SIZEOF_REGISTER;
4628 int stack_slot_align = SIZEOF_REGISTER;
4631 g_assert (t != NULL);
4637 *align = stack_slot_align;
4638 return stack_slot_size;
4641 simple_type = t->type;
4642 switch (simple_type) {
4643 case MONO_TYPE_BOOLEAN:
4644 case MONO_TYPE_CHAR:
4653 case MONO_TYPE_STRING:
4654 case MONO_TYPE_OBJECT:
4655 case MONO_TYPE_CLASS:
4656 case MONO_TYPE_SZARRAY:
4658 case MONO_TYPE_FNPTR:
4659 case MONO_TYPE_ARRAY:
4660 *align = stack_slot_align;
4661 return stack_slot_size;
4663 case MONO_TYPE_MVAR:
4664 g_assert (allow_open);
4665 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4666 *align = stack_slot_align;
4667 return stack_slot_size;
4669 /* The gparam can only match types given by gshared_constraint */
4670 return mono_type_stack_size_internal (t->data.generic_param->gshared_constraint, align, allow_open);
4672 case MONO_TYPE_TYPEDBYREF:
4673 *align = stack_slot_align;
4674 return stack_slot_size * 3;
4676 *align = MONO_ABI_ALIGNOF (float);
4677 return sizeof (float);
4680 *align = MONO_ABI_ALIGNOF (gint64);
4681 return sizeof (gint64);
4683 *align = MONO_ABI_ALIGNOF (double);
4684 return sizeof (double);
4685 case MONO_TYPE_VALUETYPE: {
4688 if (t->data.klass->enumtype)
4689 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4691 size = mono_class_value_size (t->data.klass, (guint32*)align);
4693 *align = *align + stack_slot_align - 1;
4694 *align &= ~(stack_slot_align - 1);
4696 size += stack_slot_size - 1;
4697 size &= ~(stack_slot_size - 1);
4702 case MONO_TYPE_GENERICINST: {
4703 MonoGenericClass *gclass = t->data.generic_class;
4704 MonoClass *container_class = gclass->container_class;
4707 g_assert (!gclass->context.class_inst->is_open);
4709 if (container_class->valuetype) {
4710 if (container_class->enumtype)
4711 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4713 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4715 *align = *align + stack_slot_align - 1;
4716 *align &= ~(stack_slot_align - 1);
4718 size += stack_slot_size - 1;
4719 size &= ~(stack_slot_size - 1);
4724 *align = stack_slot_align;
4725 return stack_slot_size;
4729 g_error ("type 0x%02x unknown", t->type);
4735 mono_type_generic_inst_is_valuetype (MonoType *type)
4737 g_assert (type->type == MONO_TYPE_GENERICINST);
4738 return type->data.generic_class->container_class->valuetype;
4742 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4744 return gclass->container_class->valuetype;
4748 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4750 MonoGenericInst *i1 = g1->context.class_inst;
4751 MonoGenericInst *i2 = g2->context.class_inst;
4753 if (g1->is_dynamic != g2->is_dynamic)
4755 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4757 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4759 return g1->is_tb_open == g2->is_tb_open;
4763 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4765 MonoGenericInst *i1 = g1->context.class_inst;
4766 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4768 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4770 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4772 return !g1->is_tb_open;
4776 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4778 /* FIXME: check if this seed is good enough */
4779 guint hash = 0xc01dfee7;
4780 if (context->class_inst)
4781 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4782 if (context->method_inst)
4783 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4788 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4790 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4794 * mono_metadata_str_hash:
4796 * This should be used instead of g_str_hash for computing hash codes visible
4797 * outside this module, since g_str_hash () is not guaranteed to be stable
4798 * (its not the same in eglib for example).
4801 mono_metadata_str_hash (gconstpointer v1)
4803 /* Same as g_str_hash () in glib */
4804 char *p = (char *) v1;
4809 hash = (hash << 5) - hash + *p;
4816 * mono_metadata_type_hash:
4819 * Computes an hash value for @t1 to be used in GHashTable.
4820 * The returned hash is guaranteed to be the same across executions.
4823 mono_metadata_type_hash (MonoType *t1)
4825 guint hash = t1->type;
4827 hash |= t1->byref << 6; /* do not collide with t1->type values */
4829 case MONO_TYPE_VALUETYPE:
4830 case MONO_TYPE_CLASS:
4831 case MONO_TYPE_SZARRAY: {
4832 MonoClass *class = t1->data.klass;
4834 * Dynamic classes must not be hashed on their type since it can change
4835 * during runtime. For example, if we hash a reference type that is
4836 * later made into a valuetype.
4838 * This is specially problematic with generic instances since they are
4839 * inserted in a bunch of hash tables before been finished.
4841 if (image_is_dynamic (class->image))
4842 return (t1->byref << 6) | mono_metadata_str_hash (class->name);
4843 return ((hash << 5) - hash) ^ mono_metadata_str_hash (class->name);
4846 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4847 case MONO_TYPE_ARRAY:
4848 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4849 case MONO_TYPE_GENERICINST:
4850 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4852 case MONO_TYPE_MVAR:
4853 return ((hash << 5) - hash) ^ mono_metadata_generic_param_hash (t1->data.generic_param);
4860 mono_metadata_generic_param_hash (MonoGenericParam *p)
4863 MonoGenericParamInfo *info;
4865 hash = (mono_generic_param_num (p) << 2);
4866 if (p->gshared_constraint)
4867 hash = ((hash << 5) - hash) ^ mono_metadata_type_hash (p->gshared_constraint);
4868 info = mono_generic_param_info (p);
4869 /* Can't hash on the owner klass/method, since those might not be set when this is called */
4871 hash = ((hash << 5) - hash) ^ info->token;
4876 mono_metadata_generic_param_equal_internal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4880 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4882 if (p1->gshared_constraint && p2->gshared_constraint) {
4883 if (!mono_metadata_type_equal (p1->gshared_constraint, p2->gshared_constraint))
4886 if (p1->gshared_constraint != p2->gshared_constraint)
4891 * We have to compare the image as well because if we didn't,
4892 * the generic_inst_cache lookup wouldn't care about the image
4893 * of generic params, so what could happen is that a generic
4894 * inst with params from image A is put into the cache, then
4895 * image B gets that generic inst from the cache, image A is
4896 * unloaded, so the inst is deleted, but image B still retains
4899 * The AOT runtime doesn't set the image when it's decoding
4900 * types, so we only compare it when the owner is NULL.
4902 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4903 (mono_generic_param_owner (p1) || p1->image == p2->image))
4907 * If `signature_only' is true, we're comparing two (method) signatures.
4908 * In this case, the owner of two type parameters doesn't need to match.
4911 return signature_only;
4915 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2)
4917 return mono_metadata_generic_param_equal_internal (p1, p2, TRUE);
4921 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4925 if (c1->generic_class && c2->generic_class)
4926 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4927 if (c1->generic_class && c2->generic_container)
4928 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4929 if (c1->generic_container && c2->generic_class)
4930 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4931 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4932 return mono_metadata_generic_param_equal_internal (
4933 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4934 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4935 return mono_metadata_generic_param_equal_internal (
4936 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4937 if (signature_only &&
4938 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4939 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4940 if (signature_only &&
4941 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
4942 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
4947 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4949 gpointer iter1 = 0, iter2 = 0;
4953 if (s1->call_convention != s2->call_convention)
4955 if (s1->sentinelpos != s2->sentinelpos)
4957 if (s1->hasthis != s2->hasthis)
4959 if (s1->explicit_this != s2->explicit_this)
4961 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4963 if (s1->param_count != s2->param_count)
4967 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4968 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4970 if (t1 == NULL || t2 == NULL)
4972 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4978 * mono_metadata_type_equal:
4982 * Determine if @t1 and @t2 represent the same type.
4983 * Returns: #TRUE if @t1 and @t2 are equal.
4986 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4988 if (t1->type != t2->type || t1->byref != t2->byref)
4992 case MONO_TYPE_VOID:
4993 case MONO_TYPE_BOOLEAN:
4994 case MONO_TYPE_CHAR:
5005 case MONO_TYPE_STRING:
5008 case MONO_TYPE_OBJECT:
5009 case MONO_TYPE_TYPEDBYREF:
5011 case MONO_TYPE_VALUETYPE:
5012 case MONO_TYPE_CLASS:
5013 case MONO_TYPE_SZARRAY:
5014 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
5016 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
5017 case MONO_TYPE_ARRAY:
5018 if (t1->data.array->rank != t2->data.array->rank)
5020 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
5021 case MONO_TYPE_GENERICINST:
5022 return _mono_metadata_generic_class_equal (
5023 t1->data.generic_class, t2->data.generic_class, signature_only);
5025 return mono_metadata_generic_param_equal_internal (
5026 t1->data.generic_param, t2->data.generic_param, signature_only);
5027 case MONO_TYPE_MVAR:
5028 return mono_metadata_generic_param_equal_internal (
5029 t1->data.generic_param, t2->data.generic_param, signature_only);
5030 case MONO_TYPE_FNPTR:
5031 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
5033 g_error ("implement type compare for %0x!", t1->type);
5041 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
5043 return do_mono_metadata_type_equal (t1, t2, FALSE);
5047 * mono_metadata_type_equal_full:
5050 * @signature_only: if signature only comparison should be made
5052 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
5053 * behaves the same way as mono_metadata_type_equal.
5054 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
5055 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
5058 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
5060 return do_mono_metadata_type_equal (t1, t2, signature_only);
5064 * mono_metadata_signature_equal:
5065 * @sig1: a signature
5066 * @sig2: another signature
5068 * Determine if @sig1 and @sig2 represent the same signature, with the
5069 * same number of arguments and the same types.
5070 * Returns: #TRUE if @sig1 and @sig2 are equal.
5073 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
5077 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
5080 if (sig1->generic_param_count != sig2->generic_param_count)
5084 * We're just comparing the signatures of two methods here:
5086 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
5087 * U and V are equal here.
5089 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
5092 for (i = 0; i < sig1->param_count; i++) {
5093 MonoType *p1 = sig1->params[i];
5094 MonoType *p2 = sig2->params[i];
5096 /* if (p1->attrs != p2->attrs)
5099 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
5103 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
5109 * mono_metadata_type_dup:
5110 * @image: image to alloc memory from
5111 * @original: type to duplicate
5113 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
5116 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
5119 int sizeof_o = MONO_SIZEOF_TYPE;
5121 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
5123 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
5125 memcpy (r, o, sizeof_o);
5127 if (o->type == MONO_TYPE_PTR) {
5128 r->data.type = mono_metadata_type_dup (image, o->data.type);
5129 } else if (o->type == MONO_TYPE_ARRAY) {
5130 r->data.array = mono_dup_array_type (image, o->data.array);
5131 } else if (o->type == MONO_TYPE_FNPTR) {
5132 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
5133 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
5139 mono_signature_hash (MonoMethodSignature *sig)
5141 guint i, res = sig->ret->type;
5143 for (i = 0; i < sig->param_count; i++)
5144 res = (res << 5) - res + mono_type_hash (sig->params[i]);
5150 * mono_metadata_encode_value:
5151 * @value: value to encode
5152 * @buf: buffer where to write the compressed representation
5153 * @endbuf: pointer updated to point at the end of the encoded output
5155 * Encodes the value @value in the compressed representation used
5156 * in metadata and stores the result in @buf. @buf needs to be big
5157 * enough to hold the data (4 bytes).
5160 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
5166 else if (value < 0x4000) {
5167 p [0] = 0x80 | (value >> 8);
5168 p [1] = value & 0xff;
5171 p [0] = (value >> 24) | 0xc0;
5172 p [1] = (value >> 16) & 0xff;
5173 p [2] = (value >> 8) & 0xff;
5174 p [3] = value & 0xff;
5182 * mono_metadata_field_info:
5183 * @meta: the Image the field is defined in
5184 * @index: the index in the field table representing the field
5185 * @offset: a pointer to an integer where to store the offset that
5186 * may have been specified for the field in a FieldLayout table
5187 * @rva: a pointer to the RVA of the field data in the image that
5188 * may have been defined in a FieldRVA table
5189 * @marshal_spec: a pointer to the marshal spec that may have been
5190 * defined for the field in a FieldMarshal table.
5192 * Gather info for field @index that may have been defined in the FieldLayout,
5193 * FieldRVA and FieldMarshal tables.
5194 * Either of offset, rva and marshal_spec can be NULL if you're not interested
5198 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5199 MonoMarshalSpec **marshal_spec)
5201 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
5205 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5206 MonoMarshalSpec **marshal_spec)
5208 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
5212 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5213 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
5215 MonoTableInfo *tdef;
5218 loc.idx = index + 1;
5219 if (meta->uncompressed_metadata)
5220 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
5223 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
5225 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
5228 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5229 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
5231 *offset = (guint32)-1;
5235 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
5237 loc.col_idx = MONO_FIELD_RVA_FIELD;
5240 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5242 * LAMESPEC: There is no signature, no nothing, just the raw data.
5244 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
5252 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
5253 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, meta, p);
5260 * mono_metadata_get_constant_index:
5261 * @meta: the Image the field is defined in
5262 * @index: the token that may have a row defined in the constants table
5263 * @hint: possible position for the row
5265 * @token must be a FieldDef, ParamDef or PropertyDef token.
5267 * Returns: the index into the Constants table or 0 if not found.
5270 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
5272 MonoTableInfo *tdef;
5274 guint32 index = mono_metadata_token_index (token);
5276 tdef = &meta->tables [MONO_TABLE_CONSTANT];
5277 index <<= MONO_HASCONSTANT_BITS;
5278 switch (mono_metadata_token_table (token)) {
5279 case MONO_TABLE_FIELD:
5280 index |= MONO_HASCONSTANT_FIEDDEF;
5282 case MONO_TABLE_PARAM:
5283 index |= MONO_HASCONSTANT_PARAM;
5285 case MONO_TABLE_PROPERTY:
5286 index |= MONO_HASCONSTANT_PROPERTY;
5289 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5293 loc.col_idx = MONO_CONSTANT_PARENT;
5296 /* FIXME: Index translation */
5298 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5301 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5302 return loc.result + 1;
5308 * mono_metadata_events_from_typedef:
5309 * @meta: metadata context
5310 * @index: 0-based index (in the TypeDef table) describing a type
5312 * Returns: the 0-based index in the Event table for the events in the
5313 * type. The last event that belongs to the type (plus 1) is stored
5314 * in the @end_idx pointer.
5317 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5321 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5329 loc.col_idx = MONO_EVENT_MAP_PARENT;
5330 loc.idx = index + 1;
5332 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5335 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5336 if (loc.result + 1 < tdef->rows) {
5337 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5339 end = meta->tables [MONO_TABLE_EVENT].rows;
5347 * mono_metadata_methods_from_event:
5348 * @meta: metadata context
5349 * @index: 0-based index (in the Event table) describing a event
5351 * Returns: the 0-based index in the MethodDef table for the methods in the
5352 * event. The last method that belongs to the event (plus 1) is stored
5353 * in the @end_idx pointer.
5356 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5360 guint32 cols [MONO_METHOD_SEMA_SIZE];
5361 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5367 if (meta->uncompressed_metadata)
5368 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5371 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5372 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5374 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5379 * We may end up in the middle of the rows...
5382 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5388 while (end < msemt->rows) {
5389 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5390 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5399 * mono_metadata_properties_from_typedef:
5400 * @meta: metadata context
5401 * @index: 0-based index (in the TypeDef table) describing a type
5403 * Returns: the 0-based index in the Property table for the properties in the
5404 * type. The last property that belongs to the type (plus 1) is stored
5405 * in the @end_idx pointer.
5408 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5412 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5420 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5421 loc.idx = index + 1;
5423 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5426 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5427 if (loc.result + 1 < tdef->rows) {
5428 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5430 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5438 * mono_metadata_methods_from_property:
5439 * @meta: metadata context
5440 * @index: 0-based index (in the PropertyDef table) describing a property
5442 * Returns: the 0-based index in the MethodDef table for the methods in the
5443 * property. The last method that belongs to the property (plus 1) is stored
5444 * in the @end_idx pointer.
5447 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5451 guint32 cols [MONO_METHOD_SEMA_SIZE];
5452 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5458 if (meta->uncompressed_metadata)
5459 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5462 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5463 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5465 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5470 * We may end up in the middle of the rows...
5473 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5479 while (end < msemt->rows) {
5480 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5481 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5490 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5493 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5498 /* No index translation seems to be needed */
5501 loc.col_idx = MONO_IMPLMAP_MEMBER;
5502 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5504 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5507 return loc.result + 1;
5511 * @image: context where the image is created
5512 * @type_spec: typespec token
5513 * @deprecated use mono_type_create_from_typespec_checked that has proper error handling
5515 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5519 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5522 MonoType *type = mono_type_create_from_typespec_checked (image, type_spec, &error);
5524 g_error ("Could not create typespec %x due to %s", type_spec, mono_error_get_message (&error));
5529 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error)
5532 guint32 idx = mono_metadata_token_index (type_spec);
5534 guint32 cols [MONO_TYPESPEC_SIZE];
5536 MonoType *type, *type2;
5538 mono_error_init (error);
5540 mono_image_lock (image);
5541 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5542 mono_image_unlock (image);
5546 t = &image->tables [MONO_TABLE_TYPESPEC];
5548 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5549 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5551 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5552 mono_error_set_bad_image (error, image, "Could not verify type spec %08x.", type_spec);
5556 mono_metadata_decode_value (ptr, &ptr);
5558 type = mono_metadata_parse_type_internal (image, NULL, MONO_PARSE_TYPE, 0, TRUE, ptr, &ptr);
5560 if (mono_loader_get_last_error ())
5561 mono_error_set_from_loader_error (error);
5563 mono_error_set_bad_image (error, image, "Could not parse type spec %08x.", type_spec);
5567 type2 = mono_metadata_type_dup (image, type);
5568 mono_metadata_free_type (type);
5570 mono_image_lock (image);
5571 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5572 /* We might leak some data in the image mempool if found */
5574 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5577 mono_image_unlock (image);
5584 mono_image_strndup (MonoImage *image, const char *data, guint len)
5588 return g_strndup (data, len);
5589 res = mono_image_alloc (image, len + 1);
5590 memcpy (res, data, len);
5596 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5598 return mono_metadata_parse_marshal_spec_full (NULL, image, ptr);
5602 * If IMAGE is non-null, memory will be allocated from its mempool, otherwise it will be allocated using malloc.
5603 * PARENT_IMAGE is the image containing the marshal spec.
5606 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr)
5608 MonoMarshalSpec *res;
5610 const char *start = ptr;
5612 /* fixme: this is incomplete, but I cant find more infos in the specs */
5615 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5617 res = g_new0 (MonoMarshalSpec, 1);
5619 len = mono_metadata_decode_value (ptr, &ptr);
5620 res->native = *ptr++;
5622 if (res->native == MONO_NATIVE_LPARRAY) {
5623 res->data.array_data.param_num = -1;
5624 res->data.array_data.num_elem = -1;
5625 res->data.array_data.elem_mult = -1;
5627 if (ptr - start <= len)
5628 res->data.array_data.elem_type = *ptr++;
5629 if (ptr - start <= len)
5630 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5631 if (ptr - start <= len)
5632 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5633 if (ptr - start <= len) {
5635 * LAMESPEC: Older spec versions say this parameter comes before
5636 * num_elem. Never spec versions don't talk about elem_mult at
5637 * all, but csc still emits it, and it is used to distinguish
5638 * between param_num being 0, and param_num being omitted.
5639 * So if (param_num == 0) && (num_elem > 0), then
5640 * elem_mult == 0 -> the array size is num_elem
5641 * elem_mult == 1 -> the array size is @param_num + num_elem
5643 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5647 if (res->native == MONO_NATIVE_BYVALTSTR) {
5648 if (ptr - start <= len)
5649 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5652 if (res->native == MONO_NATIVE_BYVALARRAY) {
5653 if (ptr - start <= len)
5654 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5657 if (res->native == MONO_NATIVE_CUSTOM) {
5658 /* skip unused type guid */
5659 len = mono_metadata_decode_value (ptr, &ptr);
5661 /* skip unused native type name */
5662 len = mono_metadata_decode_value (ptr, &ptr);
5664 /* read custom marshaler type name */
5665 len = mono_metadata_decode_value (ptr, &ptr);
5666 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5668 /* read cookie string */
5669 len = mono_metadata_decode_value (ptr, &ptr);
5670 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5671 res->data.custom_data.image = parent_image;
5674 if (res->native == MONO_NATIVE_SAFEARRAY) {
5675 res->data.safearray_data.elem_type = 0;
5676 res->data.safearray_data.num_elem = 0;
5677 if (ptr - start <= len)
5678 res->data.safearray_data.elem_type = *ptr++;
5679 if (ptr - start <= len)
5680 res->data.safearray_data.num_elem = *ptr++;
5686 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5688 if (spec->native == MONO_NATIVE_CUSTOM) {
5689 g_free (spec->data.custom_data.custom_name);
5690 g_free (spec->data.custom_data.cookie);
5696 * mono_type_to_unmanaged:
5698 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5699 * describing the underlying native reprensetation of the type.
5701 * In addition the value pointed by
5702 * "conv" will contain the kind of marshalling required for this
5703 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5706 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5707 gboolean unicode, MonoMarshalConv *conv)
5709 MonoMarshalConv dummy_conv;
5715 *conv = MONO_MARSHAL_CONV_NONE;
5718 return MONO_NATIVE_UINT;
5722 case MONO_TYPE_BOOLEAN:
5724 switch (mspec->native) {
5725 case MONO_NATIVE_VARIANTBOOL:
5726 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5727 return MONO_NATIVE_VARIANTBOOL;
5728 case MONO_NATIVE_BOOLEAN:
5729 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5730 return MONO_NATIVE_BOOLEAN;
5731 case MONO_NATIVE_I1:
5732 case MONO_NATIVE_U1:
5733 return mspec->native;
5735 g_error ("cant marshal bool to native type %02x", mspec->native);
5738 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5739 return MONO_NATIVE_BOOLEAN;
5740 case MONO_TYPE_CHAR:
5742 switch (mspec->native) {
5743 case MONO_NATIVE_U2:
5744 case MONO_NATIVE_U1:
5745 return mspec->native;
5747 g_error ("cant marshal char to native type %02x", mspec->native);
5750 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5751 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5752 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5753 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5754 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5755 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5756 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5757 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5758 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5759 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5760 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5761 case MONO_TYPE_STRING:
5763 switch (mspec->native) {
5764 case MONO_NATIVE_BSTR:
5765 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5766 return MONO_NATIVE_BSTR;
5767 case MONO_NATIVE_LPSTR:
5768 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5769 return MONO_NATIVE_LPSTR;
5770 case MONO_NATIVE_LPWSTR:
5771 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5772 return MONO_NATIVE_LPWSTR;
5773 case MONO_NATIVE_LPTSTR:
5774 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5775 return MONO_NATIVE_LPTSTR;
5776 case MONO_NATIVE_ANSIBSTR:
5777 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5778 return MONO_NATIVE_ANSIBSTR;
5779 case MONO_NATIVE_TBSTR:
5780 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5781 return MONO_NATIVE_TBSTR;
5782 case MONO_NATIVE_BYVALTSTR:
5784 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5786 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5787 return MONO_NATIVE_BYVALTSTR;
5789 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);
5793 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5794 return MONO_NATIVE_LPWSTR;
5797 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5798 return MONO_NATIVE_LPSTR;
5800 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5801 case MONO_TYPE_VALUETYPE: /*FIXME*/
5802 if (type->data.klass->enumtype) {
5803 t = mono_class_enum_basetype (type->data.klass)->type;
5806 if (type->data.klass == mono_defaults.handleref_class){
5807 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5808 return MONO_NATIVE_INT;
5810 return MONO_NATIVE_STRUCT;
5811 case MONO_TYPE_SZARRAY:
5812 case MONO_TYPE_ARRAY:
5814 switch (mspec->native) {
5815 case MONO_NATIVE_BYVALARRAY:
5816 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5817 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5819 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5820 return MONO_NATIVE_BYVALARRAY;
5821 case MONO_NATIVE_SAFEARRAY:
5822 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5823 return MONO_NATIVE_SAFEARRAY;
5824 case MONO_NATIVE_LPARRAY:
5825 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5826 return MONO_NATIVE_LPARRAY;
5828 g_error ("cant marshal array as native type %02x", mspec->native);
5832 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5833 return MONO_NATIVE_LPARRAY;
5834 case MONO_TYPE_I: return MONO_NATIVE_INT;
5835 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5836 case MONO_TYPE_CLASS:
5837 case MONO_TYPE_OBJECT: {
5838 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5840 switch (mspec->native) {
5841 case MONO_NATIVE_STRUCT:
5842 return MONO_NATIVE_STRUCT;
5843 case MONO_NATIVE_CUSTOM:
5844 return MONO_NATIVE_CUSTOM;
5845 case MONO_NATIVE_INTERFACE:
5846 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5847 return MONO_NATIVE_INTERFACE;
5848 case MONO_NATIVE_IDISPATCH:
5849 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5850 return MONO_NATIVE_IDISPATCH;
5851 case MONO_NATIVE_IUNKNOWN:
5852 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5853 return MONO_NATIVE_IUNKNOWN;
5854 case MONO_NATIVE_FUNC:
5855 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5856 type->data.klass == mono_defaults.delegate_class ||
5857 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5858 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5859 return MONO_NATIVE_FUNC;
5863 g_error ("cant marshal object as native type %02x", mspec->native);
5866 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5867 type->data.klass == mono_defaults.delegate_class ||
5868 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5869 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5870 return MONO_NATIVE_FUNC;
5872 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5873 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5874 return MONO_NATIVE_INT;
5876 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5877 return MONO_NATIVE_STRUCT;
5879 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5880 case MONO_TYPE_GENERICINST:
5881 type = &type->data.generic_class->container_class->byval_arg;
5884 case MONO_TYPE_TYPEDBYREF:
5886 g_error ("type 0x%02x not handled in marshal", t);
5888 return MONO_NATIVE_MAX;
5892 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5895 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5901 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5902 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5904 /* FIXME: Index translation */
5906 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5909 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5913 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error)
5915 MonoMethod *result = NULL;
5916 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5918 mono_error_init (error);
5920 switch (tok & MONO_METHODDEFORREF_MASK) {
5921 case MONO_METHODDEFORREF_METHODDEF:
5922 result = mono_get_method_checked (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context, error);
5924 case MONO_METHODDEFORREF_METHODREF:
5925 result = mono_get_method_checked (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context, error);
5928 mono_error_set_bad_image (error, m, "Invalid MethodDefOfRef token %x", tok);
5935 * mono_class_get_overrides_full:
5937 * Return the method overrides belonging to class @type_token in @overrides, and
5938 * the number of overrides in @num_overrides.
5940 * Returns: TRUE on success, FALSE on failure.
5943 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5944 MonoGenericContext *generic_context)
5948 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5951 guint32 cols [MONO_METHODIMPL_SIZE];
5952 MonoMethod **result;
5963 loc.col_idx = MONO_METHODIMPL_CLASS;
5964 loc.idx = mono_metadata_token_index (type_token);
5966 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5972 * We may end up in the middle of the rows...
5975 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5980 while (end < tdef->rows) {
5981 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5987 result = g_new (MonoMethod*, num * 2);
5988 for (i = 0; i < num; ++i) {
5991 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
5992 mono_error_cleanup (&error); /* FIXME don't swallow the error */
5997 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5998 method = method_from_method_def_or_ref (
5999 image, cols [MONO_METHODIMPL_DECLARATION], generic_context, &error);
6000 if (method == NULL) {
6001 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6004 result [i * 2] = method;
6005 method = method_from_method_def_or_ref (
6006 image, cols [MONO_METHODIMPL_BODY], generic_context, &error);
6007 if (method == NULL) {
6008 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6011 result [i * 2 + 1] = method;
6014 *overrides = result;
6016 *num_overrides = num;
6021 * mono_guid_to_string:
6023 * Converts a 16 byte Microsoft GUID to the standard string representation.
6026 mono_guid_to_string (const guint8 *guid)
6028 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
6029 guid[3], guid[2], guid[1], guid[0],
6033 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6037 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container, MonoError *error)
6039 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
6040 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
6041 guint32 i, token, found;
6042 MonoClass *klass, **res;
6043 GSList *cons = NULL, *tmp;
6044 MonoGenericContext *context = &container->context;
6046 mono_error_init (error);
6048 *constraints = NULL;
6050 for (i = 0; i < tdef->rows; ++i) {
6051 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
6052 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
6053 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
6054 klass = mono_class_get_and_inflate_typespec_checked (image, token, context, error);
6056 g_slist_free (cons);
6059 cons = g_slist_append (cons, klass);
6062 /* contiguous list finished */
6069 res = mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
6070 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
6071 res [i] = tmp->data;
6073 g_slist_free (cons);
6079 * mono_metadata_get_generic_param_row:
6082 * @token: TypeOrMethodDef token, owner for GenericParam
6083 * @owner: coded token, set on return
6085 * Returns: 1-based row-id in the GenericParam table whose
6086 * owner is @token. 0 if not found.
6089 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
6091 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6098 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
6099 *owner = MONO_TYPEORMETHOD_TYPE;
6100 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6101 *owner = MONO_TYPEORMETHOD_METHOD;
6103 g_error ("wrong token %x to get_generic_param_row", token);
6106 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
6109 loc.col_idx = MONO_GENERICPARAM_OWNER;
6112 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6115 /* Find the first entry by searching backwards */
6116 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
6119 return loc.result + 1;
6123 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
6126 return mono_metadata_get_generic_param_row (image, token, &owner);
6130 * Memory is allocated from IMAGE's mempool.
6133 mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
6134 MonoGenericContainer *container, MonoError *error)
6137 guint32 start_row, i, owner;
6138 mono_error_init (error);
6140 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
6142 for (i = 0; i < container->type_argc; i++) {
6143 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container, error)) {
6144 mono_loader_assert_no_error ();
6152 * mono_metadata_load_generic_params:
6154 * Load the type parameters from the type or method definition @token.
6156 * Use this method after parsing a type or method definition to figure out whether it's a generic
6157 * type / method. When parsing a method definition, @parent_container points to the generic container
6158 * of the current class, if any.
6160 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
6161 * creating the type.
6163 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
6165 * LOCKING: Acquires the loader lock
6168 MonoGenericContainer *
6169 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
6171 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6172 guint32 cols [MONO_GENERICPARAM_SIZE];
6173 guint32 i, owner = 0, n;
6174 MonoGenericContainer *container;
6175 MonoGenericParamFull *params;
6176 MonoGenericContext *context;
6178 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
6180 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6183 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
6184 container->image = image;
6187 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
6188 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
6189 params [n - 1].param.owner = container;
6190 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
6191 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
6192 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
6193 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
6194 if (params [n - 1].param.num != n - 1)
6195 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
6196 if (++i > tdef->rows)
6198 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6199 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
6201 container->type_argc = n;
6202 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
6203 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
6205 container->parent = parent_container;
6207 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6208 container->is_method = 1;
6210 g_assert (container->parent == NULL || container->is_method);
6212 context = &container->context;
6213 if (container->is_method) {
6214 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
6215 context->method_inst = mono_get_shared_generic_inst (container);
6217 context->class_inst = mono_get_shared_generic_inst (container);
6224 mono_get_shared_generic_inst (MonoGenericContainer *container)
6226 MonoType **type_argv;
6228 MonoGenericInst *nginst;
6231 type_argv = g_new0 (MonoType *, container->type_argc);
6232 helper = g_new0 (MonoType, container->type_argc);
6234 for (i = 0; i < container->type_argc; i++) {
6235 MonoType *t = &helper [i];
6237 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
6238 t->data.generic_param = mono_generic_container_get_param (container, i);
6243 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
6252 * mono_type_is_byref:
6253 * @type: the MonoType operated on
6255 * Returns: #TRUE if @type represents a type passed by reference,
6259 mono_type_is_byref (MonoType *type)
6265 * mono_type_get_type:
6266 * @type: the MonoType operated on
6268 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
6269 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
6272 mono_type_get_type (MonoType *type)
6278 * mono_type_get_signature:
6279 * @type: the MonoType operated on
6281 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
6283 * Returns: the MonoMethodSignature pointer that describes the signature
6284 * of the function pointer @type represents.
6286 MonoMethodSignature*
6287 mono_type_get_signature (MonoType *type)
6289 g_assert (type->type == MONO_TYPE_FNPTR);
6290 return type->data.method;
6294 * mono_type_get_class:
6295 * @type: the MonoType operated on
6297 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
6298 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
6301 * Returns: the MonoClass pointer that describes the class that @type represents.
6304 mono_type_get_class (MonoType *type)
6306 /* FIXME: review the runtime users before adding the assert here */
6307 return type->data.klass;
6311 * mono_type_get_array_type:
6312 * @type: the MonoType operated on
6314 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6316 * Returns: a MonoArrayType struct describing the array type that @type
6317 * represents. The info includes details such as rank, array element type
6318 * and the sizes and bounds of multidimensional arrays.
6321 mono_type_get_array_type (MonoType *type)
6323 return type->data.array;
6327 * mono_type_get_ptr_type:
6328 * @type: the MonoType operated on
6330 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6333 * Returns: the MonoType pointer that describes the type that @type
6334 * represents a pointer to.
6337 mono_type_get_ptr_type (MonoType *type)
6339 g_assert (type->type == MONO_TYPE_PTR);
6340 return type->data.type;
6344 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6346 /* FIXME: implement */
6351 * mono_type_is_struct:
6352 * @type: the MonoType operated on
6354 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6355 * or a basic type like System.Int32. #FALSE otherwise.
6358 mono_type_is_struct (MonoType *type)
6360 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6361 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6362 ((type->type == MONO_TYPE_GENERICINST) &&
6363 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6364 !type->data.generic_class->container_class->enumtype)));
6368 * mono_type_is_void:
6369 * @type: the MonoType operated on
6371 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6374 mono_type_is_void (MonoType *type)
6376 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6380 * mono_type_is_pointer:
6381 * @type: the MonoType operated on
6383 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6386 mono_type_is_pointer (MonoType *type)
6388 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6389 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6390 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6391 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6392 (type->type == MONO_TYPE_FNPTR)));
6396 * mono_type_is_reference:
6397 * @type: the MonoType operated on
6399 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6402 mono_type_is_reference (MonoType *type)
6404 return (type && (((type->type == MONO_TYPE_STRING) ||
6405 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6406 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6407 ((type->type == MONO_TYPE_GENERICINST) &&
6408 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6412 * mono_signature_get_return_type:
6413 * @sig: the method signature inspected
6415 * Returns: the return type of the method signature @sig
6418 mono_signature_get_return_type (MonoMethodSignature *sig)
6424 * mono_signature_get_params:
6425 * @sig: the method signature inspected
6426 * #iter: pointer to an iterator
6428 * Iterates over the parameters for the method signature @sig.
6429 * A void* pointer must be initualized to #NULL to start the iteration
6430 * and it's address is passed to this function repeteadly until it returns
6433 * Returns: the next parameter type of the method signature @sig,
6434 * #NULL when finished.
6437 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6443 /* start from the first */
6444 if (sig->param_count) {
6445 *iter = &sig->params [0];
6446 return sig->params [0];
6454 if (type < &sig->params [sig->param_count]) {
6462 * mono_signature_get_param_count:
6463 * @sig: the method signature inspected
6465 * Returns: the number of parameters in the method signature @sig.
6468 mono_signature_get_param_count (MonoMethodSignature *sig)
6470 return sig->param_count;
6474 * mono_signature_get_call_conv:
6475 * @sig: the method signature inspected
6477 * Returns: the call convention of the method signature @sig.
6480 mono_signature_get_call_conv (MonoMethodSignature *sig)
6482 return sig->call_convention;
6486 * mono_signature_vararg_start:
6487 * @sig: the method signature inspected
6489 * Returns: the number of the first vararg parameter in the
6490 * method signature @sig. -1 if this is not a vararg signature.
6493 mono_signature_vararg_start (MonoMethodSignature *sig)
6495 return sig->sentinelpos;
6499 * mono_signature_is_instance:
6500 * @sig: the method signature inspected
6502 * Returns: #TRUE if this the method signature @sig has an implicit
6503 * first instance argument. #FALSE otherwise.
6506 mono_signature_is_instance (MonoMethodSignature *sig)
6508 return sig->hasthis;
6512 * mono_signature_param_is_out
6513 * @sig: the method signature inspected
6514 * @param_num: the 0-based index of the inspected parameter
6516 * Returns: #TRUE if the parameter is an out parameter, #FALSE
6520 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6522 g_assert (param_num >= 0 && param_num < sig->param_count);
6523 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6527 * mono_signature_explicit_this:
6528 * @sig: the method signature inspected
6530 * Returns: #TRUE if this the method signature @sig has an explicit
6531 * instance argument. #FALSE otherwise.
6534 mono_signature_explicit_this (MonoMethodSignature *sig)
6536 return sig->explicit_this;
6539 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6541 mono_aligned_addr_hash (gconstpointer ptr)
6543 return GPOINTER_TO_UINT (ptr) >> 3;
6547 * If @field belongs to an inflated generic class, return the corresponding field of the
6548 * generic type definition class.
6551 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6556 if (!field->parent->generic_class)
6559 gtd = field->parent->generic_class->container_class;
6560 offset = field - field->parent->fields;
6561 return gtd->fields + offset;
6565 * If @event belongs to an inflated generic class, return the corresponding event of the
6566 * generic type definition class.
6569 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6574 if (!event->parent->generic_class)
6577 gtd = event->parent->generic_class->container_class;
6578 offset = event - event->parent->ext->events;
6579 return gtd->ext->events + offset;
6583 * If @property belongs to an inflated generic class, return the corresponding property of the
6584 * generic type definition class.
6587 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6592 if (!property->parent->generic_class)
6595 gtd = property->parent->generic_class->container_class;
6596 offset = property - property->parent->ext->properties;
6597 return gtd->ext->properties + offset;