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 += MONO_SIZEOF_TYPE;
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 memcpy (ret->ret, sig->ret, MONO_SIZEOF_TYPE);
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 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2157 inflated_method_hash (gconstpointer a)
2159 const MonoMethodInflated *ma = a;
2160 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring));
2164 inflated_signature_equal (gconstpointer a, gconstpointer b)
2166 const MonoInflatedMethodSignature *sig1 = a;
2167 const MonoInflatedMethodSignature *sig2 = b;
2169 /* sig->sig is assumed to be canonized */
2170 if (sig1->sig != sig2->sig)
2172 /* The generic instances are canonized */
2173 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2177 inflated_signature_hash (gconstpointer a)
2179 const MonoInflatedMethodSignature *sig = a;
2181 /* sig->sig is assumed to be canonized */
2182 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2186 dump_ginst (MonoGenericInst *ginst)
2191 g_print ("Ginst: <");
2192 for (i = 0; i < ginst->type_argc; ++i) {
2195 name = mono_type_get_name (ginst->type_argv [i]);
2196 g_print ("%s", name);
2202 static gboolean type_in_image (MonoType *type, MonoImage *image);
2205 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2207 gpointer iter = NULL;
2210 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2211 if (type_in_image (p, image))
2214 return type_in_image (mono_signature_get_return_type (sig), image);
2218 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2222 for (i = 0; i < ginst->type_argc; ++i) {
2223 if (type_in_image (ginst->type_argv [i], image))
2231 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2233 return gclass->container_class->image == image ||
2234 ginst_in_image (gclass->context.class_inst, image);
2238 type_in_image (MonoType *type, MonoImage *image)
2241 switch (type->type) {
2242 case MONO_TYPE_GENERICINST:
2243 return gclass_in_image (type->data.generic_class, image);
2245 type = type->data.type;
2247 case MONO_TYPE_SZARRAY:
2248 type = &type->data.klass->byval_arg;
2250 case MONO_TYPE_ARRAY:
2251 type = &type->data.array->eklass->byval_arg;
2253 case MONO_TYPE_FNPTR:
2254 return signature_in_image (type->data.method, image);
2255 case MONO_TYPE_VAR: {
2256 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2258 g_assert (!container->is_method);
2260 * FIXME: The following check is here solely
2261 * for monodis, which uses the internal
2263 * mono_metadata_load_generic_params(). The
2264 * caller of that function needs to fill in
2265 * owner->klass or owner->method of the
2266 * returned struct, but monodis doesn't do
2267 * that. The image unloading depends on that,
2268 * however, so a crash results without this
2271 if (!container->owner.klass)
2272 return container->image == image;
2273 return container->owner.klass->image == image;
2275 return type->data.generic_param->image == image;
2278 case MONO_TYPE_MVAR: {
2279 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2280 if (type->data.generic_param->image == image)
2283 g_assert (container->is_method);
2284 if (!container->owner.method)
2285 /* RefEmit created generic param whose method is not finished */
2286 return container->image == image;
2287 return container->owner.method->klass->image == image;
2289 return type->data.generic_param->image == image;
2293 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2294 return image == mono_class_from_mono_type (type)->image;
2299 image_sets_lock (void)
2301 mono_mutex_lock (&image_sets_mutex);
2305 image_sets_unlock (void)
2307 mono_mutex_unlock (&image_sets_mutex);
2313 * Return a MonoImageSet representing the set of images in IMAGES.
2315 static MonoImageSet*
2316 get_image_set (MonoImage **images, int nimages)
2323 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2324 return mscorlib_image_set;
2326 /* Happens with empty generic instances */
2328 return mscorlib_image_set;
2333 image_sets = g_ptr_array_new ();
2335 if (images [0] == mono_defaults.corlib && nimages > 1)
2336 l = images [1]->image_sets;
2338 l = images [0]->image_sets;
2341 for (; l; l = l->next) {
2344 if (set->nimages == nimages) {
2345 for (j = 0; j < nimages; ++j) {
2346 for (k = 0; k < nimages; ++k)
2347 if (set->images [k] == images [j])
2361 set = g_new0 (MonoImageSet, 1);
2362 set->nimages = nimages;
2363 set->images = g_new0 (MonoImage*, nimages);
2364 mono_mutex_init_recursive (&set->lock);
2365 for (i = 0; i < nimages; ++i)
2366 set->images [i] = images [i];
2367 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2368 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2369 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2370 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2372 for (i = 0; i < nimages; ++i)
2373 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2375 g_ptr_array_add (image_sets, set);
2378 if (nimages == 1 && images [0] == mono_defaults.corlib) {
2379 mono_memory_barrier ();
2380 mscorlib_image_set = set;
2383 image_sets_unlock ();
2389 delete_image_set (MonoImageSet *set)
2393 g_hash_table_destroy (set->gclass_cache);
2394 g_hash_table_destroy (set->ginst_cache);
2395 g_hash_table_destroy (set->gmethod_cache);
2396 g_hash_table_destroy (set->gsignature_cache);
2398 mono_wrapper_caches_free (&set->wrapper_caches);
2402 for (i = 0; i < set->nimages; ++i)
2403 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2405 g_ptr_array_remove (image_sets, set);
2407 image_sets_unlock ();
2410 mono_mempool_destroy (set->mempool);
2411 g_free (set->images);
2412 mono_mutex_destroy (&set->lock);
2417 mono_image_set_lock (MonoImageSet *set)
2419 mono_mutex_lock (&set->lock);
2423 mono_image_set_unlock (MonoImageSet *set)
2425 mono_mutex_unlock (&set->lock);
2429 mono_image_set_alloc (MonoImageSet *set, guint size)
2433 mono_image_set_lock (set);
2435 set->mempool = mono_mempool_new_size (1024);
2436 res = mono_mempool_alloc (set->mempool, size);
2437 mono_image_set_unlock (set);
2443 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2447 mono_image_set_lock (set);
2449 set->mempool = mono_mempool_new_size (1024);
2450 res = mono_mempool_alloc0 (set->mempool, size);
2451 mono_image_set_unlock (set);
2457 mono_image_set_strdup (MonoImageSet *set, const char *s)
2461 mono_image_set_lock (set);
2463 set->mempool = mono_mempool_new_size (1024);
2464 res = mono_mempool_strdup (set->mempool, s);
2465 mono_image_set_unlock (set);
2471 * Structure used by the collect_..._images functions to store the image list.
2474 MonoImage *image_buf [64];
2476 int nimages, images_len;
2480 collect_data_init (CollectData *data)
2482 data->images = data->image_buf;
2483 data->images_len = 64;
2488 collect_data_free (CollectData *data)
2490 if (data->images != data->image_buf)
2491 g_free (data->images);
2495 enlarge_data (CollectData *data)
2497 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2498 MonoImage **d = g_new (MonoImage *, new_len);
2501 g_assert_not_reached ();
2502 memcpy (d, data->images, data->images_len);
2503 if (data->images != data->image_buf)
2504 g_free (data->images);
2506 data->images_len = new_len;
2510 add_image (MonoImage *image, CollectData *data)
2514 /* The arrays are small, so use a linear search instead of a hash table */
2515 for (i = 0; i < data->nimages; ++i)
2516 if (data->images [i] == image)
2519 if (data->nimages == data->images_len)
2520 enlarge_data (data);
2522 data->images [data->nimages ++] = image;
2526 collect_type_images (MonoType *type, CollectData *data);
2529 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2533 for (i = 0; i < ginst->type_argc; ++i) {
2534 collect_type_images (ginst->type_argv [i], data);
2539 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2541 add_image (gclass->container_class->image, data);
2542 if (gclass->context.class_inst)
2543 collect_ginst_images (gclass->context.class_inst, data);
2547 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2549 gpointer iter = NULL;
2552 collect_type_images (mono_signature_get_return_type (sig), data);
2553 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2554 collect_type_images (p, data);
2558 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2560 collect_signature_images (sig->sig, data);
2561 if (sig->context.class_inst)
2562 collect_ginst_images (sig->context.class_inst, data);
2563 if (sig->context.method_inst)
2564 collect_ginst_images (sig->context.method_inst, data);
2568 collect_method_images (MonoMethodInflated *method, CollectData *data)
2570 MonoMethod *m = method->declaring;
2572 add_image (method->declaring->klass->image, data);
2573 if (method->context.class_inst)
2574 collect_ginst_images (method->context.class_inst, data);
2575 if (method->context.method_inst)
2576 collect_ginst_images (method->context.method_inst, data);
2578 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2580 if (image_is_dynamic (m->klass->image))
2581 collect_signature_images (mono_method_signature (m), data);
2585 collect_type_images (MonoType *type, CollectData *data)
2588 switch (type->type) {
2589 case MONO_TYPE_GENERICINST:
2590 collect_gclass_images (type->data.generic_class, data);
2593 type = type->data.type;
2595 case MONO_TYPE_SZARRAY:
2596 type = &type->data.klass->byval_arg;
2598 case MONO_TYPE_ARRAY:
2599 type = &type->data.array->eklass->byval_arg;
2601 case MONO_TYPE_FNPTR:
2602 //return signature_in_image (type->data.method, image);
2603 g_assert_not_reached ();
2604 case MONO_TYPE_VAR: {
2605 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2607 g_assert (!container->is_method);
2609 * FIXME: The following check is here solely
2610 * for monodis, which uses the internal
2612 * mono_metadata_load_generic_params(). The
2613 * caller of that function needs to fill in
2614 * owner->klass or owner->method of the
2615 * returned struct, but monodis doesn't do
2616 * that. The image unloading depends on that,
2617 * however, so a crash results without this
2620 if (!container->owner.klass)
2621 add_image (container->image, data);
2623 add_image (container->owner.klass->image, data);
2625 add_image (type->data.generic_param->image, data);
2629 case MONO_TYPE_MVAR: {
2630 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2631 if (type->data.generic_param->image)
2632 add_image (type->data.generic_param->image, data);
2634 if (!container->owner.method) {
2635 /* RefEmit created generic param whose method is not finished */
2636 add_image (container->image, data);
2638 g_assert (container->is_method);
2639 add_image (container->owner.method->klass->image, data);
2642 add_image (type->data.generic_param->image, data);
2646 case MONO_TYPE_CLASS:
2647 case MONO_TYPE_VALUETYPE:
2648 add_image (mono_class_from_mono_type (type)->image, data);
2651 add_image (mono_defaults.corlib, data);
2658 } CleanForImageUserData;
2661 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2663 MonoGenericClass *gclass = key;
2664 CleanForImageUserData *user_data = data;
2666 g_assert (gclass_in_image (gclass, user_data->image));
2668 user_data->list = g_slist_prepend (user_data->list, gclass);
2673 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2675 MonoGenericInst *ginst = key;
2676 CleanForImageUserData *user_data = data;
2678 // This doesn't work during corlib compilation
2679 //g_assert (ginst_in_image (ginst, user_data->image));
2681 user_data->list = g_slist_prepend (user_data->list, ginst);
2686 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2688 MonoImage *image = data;
2689 MonoMethodInflated *method = key;
2692 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2693 g_assert (method->declaring->klass->image == image ||
2694 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2695 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2701 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2703 MonoImage *image = data;
2704 MonoInflatedMethodSignature *sig = key;
2706 return signature_in_image (sig->sig, image) ||
2707 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2708 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2712 check_gmethod (gpointer key, gpointer value, gpointer data)
2714 MonoMethodInflated *method = key;
2715 MonoImage *image = data;
2717 if (method->context.class_inst)
2718 g_assert (!ginst_in_image (method->context.class_inst, image));
2719 if (method->context.method_inst)
2720 g_assert (!ginst_in_image (method->context.method_inst, image));
2721 if (((MonoMethod*)method)->signature)
2722 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2728 * Run a consistency check on the image set data structures.
2730 static G_GNUC_UNUSED void
2731 check_image_sets (MonoImage *image)
2734 GSList *l = image->image_sets;
2739 for (i = 0; i < image_sets->len; ++i) {
2740 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2742 if (!g_slist_find (l, set)) {
2743 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2749 mono_metadata_clean_for_image (MonoImage *image)
2751 CleanForImageUserData ginst_data, gclass_data;
2752 GSList *l, *set_list;
2754 //check_image_sets (image);
2757 * The data structures could reference each other so we delete them in two phases.
2758 * This is required because of the hashing functions in gclass/ginst_cache.
2760 ginst_data.image = gclass_data.image = image;
2761 ginst_data.list = gclass_data.list = NULL;
2763 /* Collect the items to delete */
2764 /* delete_image_set () modifies the lists so make a copy */
2765 for (l = image->image_sets; l; l = l->next) {
2766 MonoImageSet *set = l->data;
2768 mono_image_set_lock (set);
2769 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2770 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2771 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2772 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2773 mono_image_set_unlock (set);
2776 /* Delete the removed items */
2777 for (l = ginst_data.list; l; l = l->next)
2778 free_generic_inst (l->data);
2779 for (l = gclass_data.list; l; l = l->next)
2780 free_generic_class (l->data);
2781 g_slist_free (ginst_data.list);
2782 g_slist_free (gclass_data.list);
2783 /* delete_image_set () modifies the lists so make a copy */
2784 set_list = g_slist_copy (image->image_sets);
2785 for (l = set_list; l; l = l->next) {
2786 MonoImageSet *set = l->data;
2788 delete_image_set (set);
2790 g_slist_free (set_list);
2794 free_inflated_method (MonoMethodInflated *imethod)
2797 MonoMethod *method = (MonoMethod*)imethod;
2799 if (method->signature)
2800 mono_metadata_free_inflated_signature (method->signature);
2802 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))) {
2803 MonoMethodHeader *header = imethod->header;
2806 /* Allocated in inflate_generic_header () */
2807 for (i = 0; i < header->num_locals; ++i)
2808 mono_metadata_free_type (header->locals [i]);
2809 g_free (header->clauses);
2818 free_generic_inst (MonoGenericInst *ginst)
2822 /* The ginst itself is allocated from the image set mempool */
2823 for (i = 0; i < ginst->type_argc; ++i)
2824 mono_metadata_free_type (ginst->type_argv [i]);
2828 free_generic_class (MonoGenericClass *gclass)
2830 /* The gclass itself is allocated from the image set mempool */
2831 if (gclass->is_dynamic)
2832 mono_reflection_free_dynamic_generic_class (gclass);
2833 if (gclass->cached_class && gclass->cached_class->interface_id)
2834 mono_unload_interface_id (gclass->cached_class);
2838 free_inflated_signature (MonoInflatedMethodSignature *sig)
2840 mono_metadata_free_inflated_signature (sig->sig);
2845 * mono_metadata_get_inflated_signature:
2847 * Given an inflated signature and a generic context, return a canonical copy of the
2848 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2850 MonoMethodSignature *
2851 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2853 MonoInflatedMethodSignature helper;
2854 MonoInflatedMethodSignature *res;
2859 helper.context.class_inst = context->class_inst;
2860 helper.context.method_inst = context->method_inst;
2862 collect_data_init (&data);
2864 collect_inflated_signature_images (&helper, &data);
2866 set = get_image_set (data.images, data.nimages);
2868 collect_data_free (&data);
2870 mono_image_set_lock (set);
2872 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2874 res = g_new0 (MonoInflatedMethodSignature, 1);
2876 res->context.class_inst = context->class_inst;
2877 res->context.method_inst = context->method_inst;
2878 g_hash_table_insert (set->gsignature_cache, res, res);
2881 mono_image_set_unlock (set);
2887 mono_metadata_get_image_set_for_method (MonoMethodInflated *method)
2890 CollectData image_set_data;
2892 collect_data_init (&image_set_data);
2893 collect_method_images (method, &image_set_data);
2894 set = get_image_set (image_set_data.images, image_set_data.nimages);
2895 collect_data_free (&image_set_data);
2901 * mono_metadata_get_generic_inst:
2903 * Given a list of types, return a MonoGenericInst that represents that list.
2904 * The returned MonoGenericInst has its own copy of the list of types. The list
2905 * passed in the argument can be freed, modified or disposed of.
2909 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2911 MonoGenericInst *ginst;
2914 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2918 for (i = 0; i < type_argc; ++i)
2919 if (mono_class_is_open_constructed_type (type_argv [i]))
2921 is_open = (i < type_argc);
2923 ginst = g_alloca (size);
2924 memset (ginst, 0, sizeof (MonoGenericInst));
2925 ginst->is_open = is_open;
2926 ginst->type_argc = type_argc;
2927 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2929 collect_data_init (&data);
2931 collect_ginst_images (ginst, &data);
2933 set = get_image_set (data.images, data.nimages);
2935 collect_data_free (&data);
2937 mono_image_set_lock (set);
2939 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2941 ginst = mono_image_set_alloc0 (set, size);
2942 #ifndef MONO_SMALL_CONFIG
2943 ginst->id = ++next_generic_inst_id;
2945 ginst->is_open = is_open;
2946 ginst->type_argc = type_argc;
2948 for (i = 0; i < type_argc; ++i)
2949 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2951 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2954 mono_image_set_unlock (set);
2959 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2961 MonoGenericContainer *container = container_class->generic_container;
2963 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2965 return inst == container->context.class_inst;
2969 * mono_metadata_lookup_generic_class:
2971 * Returns a MonoGenericClass with the given properties.
2975 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2977 MonoGenericClass *gclass;
2978 MonoGenericClass helper;
2979 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2983 helper.container_class = container_class;
2984 helper.context.class_inst = inst;
2985 helper.context.method_inst = NULL;
2986 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2987 helper.is_tb_open = is_tb_open;
2988 helper.cached_class = NULL;
2990 collect_data_init (&data);
2992 collect_gclass_images (&helper, &data);
2994 set = get_image_set (data.images, data.nimages);
2996 collect_data_free (&data);
2998 mono_image_set_lock (set);
3000 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
3002 /* A tripwire just to keep us honest */
3003 g_assert (!helper.cached_class);
3006 mono_image_set_unlock (set);
3011 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
3012 gclass = &dgclass->generic_class;
3013 gclass->is_dynamic = 1;
3015 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
3018 gclass->is_tb_open = is_tb_open;
3019 gclass->container_class = container_class;
3020 gclass->context.class_inst = inst;
3021 gclass->context.method_inst = NULL;
3022 gclass->owner = set;
3023 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
3024 gclass->cached_class = container_class;
3026 g_hash_table_insert (set->gclass_cache, gclass, gclass);
3028 mono_image_set_unlock (set);
3034 * mono_metadata_inflate_generic_inst:
3036 * Instantiate the generic instance @ginst with the context @context.
3037 * Check @error for success.
3041 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
3043 MonoType **type_argv;
3044 MonoGenericInst *nginst = NULL;
3047 mono_error_init (error);
3049 if (!ginst->is_open)
3052 type_argv = g_new0 (MonoType*, ginst->type_argc);
3054 for (i = 0; i < ginst->type_argc; i++) {
3055 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
3056 if (!mono_error_ok (error))
3061 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
3064 for (i = 0; i < count; i++)
3065 mono_metadata_free_type (type_argv [i]);
3072 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
3073 int count, const char *ptr, const char **rptr)
3075 MonoType **type_argv;
3076 MonoGenericInst *ginst;
3079 type_argv = g_new0 (MonoType*, count);
3081 for (i = 0; i < count; i++) {
3082 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
3093 ginst = mono_metadata_get_generic_inst (count, type_argv);
3101 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3102 const char *ptr, const char **rptr)
3104 MonoGenericInst *inst;
3109 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
3113 gklass = mono_class_from_mono_type (gtype);
3114 if (!gklass->generic_container)
3117 count = mono_metadata_decode_value (ptr, &ptr);
3118 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
3125 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3131 * @gc: The generic container to normalize
3132 * @type: The kind of generic parameters the resulting generic-container should contain
3135 static MonoGenericContainer *
3136 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3138 gboolean is_var = (type == MONO_TYPE_VAR);
3142 g_assert (is_var || type == MONO_TYPE_MVAR);
3145 if (gc->is_method || gc->parent)
3147 * The current MonoGenericContainer is a generic method -> its `parent'
3148 * points to the containing class'es container.
3157 * mono_metadata_parse_generic_param:
3158 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3159 * see mono_metadata_parse_type_full() for details.
3160 * Internal routine to parse a generic type parameter.
3161 * LOCKING: Acquires the loader lock
3163 static MonoGenericParam *
3164 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3165 MonoTypeEnum type, const char *ptr, const char **rptr)
3167 int index = mono_metadata_decode_value (ptr, &ptr);
3171 generic_container = select_container (generic_container, type);
3172 if (!generic_container) {
3173 /* Create dummy MonoGenericParam */
3174 MonoGenericParam *param;
3176 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3183 if (index >= generic_container->type_argc)
3186 return mono_generic_container_get_param (generic_container, index);
3190 * mono_metadata_get_shared_type:
3192 * Return a shared instance of TYPE, if available, NULL otherwise.
3193 * Shared MonoType instances help save memory. Their contents should not be modified
3194 * by the caller. They do not need to be freed as their lifetime is bound by either
3195 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3196 * instance they are embedded in. If they are freed, they should be freed using
3197 * mono_metadata_free_type () instead of g_free ().
3200 mono_metadata_get_shared_type (MonoType *type)
3204 /* No need to use locking since nobody is modifying the hash table */
3205 if ((cached = g_hash_table_lookup (type_cache, type)))
3208 switch (type->type){
3209 case MONO_TYPE_CLASS:
3210 case MONO_TYPE_VALUETYPE:
3211 if (type == &type->data.klass->byval_arg)
3213 if (type == &type->data.klass->this_arg)
3224 compare_type_literals (int class_type, int type_type)
3226 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3227 * See mcs/test/gtest-440. and #650936.
3228 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3232 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3235 if (class_type == type_type)
3238 if (type_type == MONO_TYPE_CLASS)
3239 return class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT;
3241 g_assert (type_type == MONO_TYPE_VALUETYPE);
3242 switch (class_type) {
3243 case MONO_TYPE_BOOLEAN:
3244 case MONO_TYPE_CHAR:
3257 case MONO_TYPE_CLASS:
3265 * do_mono_metadata_parse_type:
3266 * @type: MonoType to be filled in with the return value
3268 * @generic_context: generics_context
3269 * @transient: whenever to allocate data from the heap
3270 * @ptr: pointer to the encoded type
3271 * @rptr: pointer where the end of the encoded type is saved
3273 * Internal routine used to "fill" the contents of @type from an
3274 * allocated pointer. This is done this way to avoid doing too
3275 * many mini-allocations (particularly for the MonoFieldType which
3276 * most of the time is just a MonoType, but sometimes might be augmented).
3278 * This routine is used by mono_metadata_parse_type and
3279 * mono_metadata_parse_field_type
3281 * This extracts a Type as specified in Partition II (22.2.12)
3283 * Returns: FALSE if the type could not be loaded
3286 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3287 gboolean transient, const char *ptr, const char **rptr)
3290 type->type = mono_metadata_decode_value (ptr, &ptr);
3292 switch (type->type){
3293 case MONO_TYPE_VOID:
3294 case MONO_TYPE_BOOLEAN:
3295 case MONO_TYPE_CHAR:
3308 case MONO_TYPE_STRING:
3309 case MONO_TYPE_OBJECT:
3310 case MONO_TYPE_TYPEDBYREF:
3312 case MONO_TYPE_VALUETYPE:
3313 case MONO_TYPE_CLASS: {
3317 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3318 class = mono_class_get_checked (m, token, &error);
3319 type->data.klass = class;
3321 mono_loader_set_error_from_mono_error (&error);
3322 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3325 if (!compare_type_literals (class->byval_arg.type, type->type))
3329 case MONO_TYPE_SZARRAY: {
3330 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
3333 type->data.klass = mono_class_from_mono_type (etype);
3334 if (!type->data.klass)
3339 type->data.type = mono_metadata_parse_type_internal (m, container, MONO_PARSE_MOD_TYPE, 0, transient, ptr, &ptr);
3340 if (!type->data.type)
3343 case MONO_TYPE_FNPTR: {
3345 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr, &error);
3346 if (!type->data.method) {
3347 mono_loader_set_error_from_mono_error (&error);
3348 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3353 case MONO_TYPE_ARRAY:
3354 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr);
3355 if (!type->data.array)
3358 case MONO_TYPE_MVAR:
3359 if (container && !container->is_method)
3362 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
3363 if (!type->data.generic_param)
3366 case MONO_TYPE_GENERICINST:
3367 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
3370 g_warning ("type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3380 * mono_metadata_free_type:
3381 * @type: type to free
3383 * Free the memory allocated for type @type which is allocated on the heap.
3386 mono_metadata_free_type (MonoType *type)
3388 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3391 switch (type->type){
3392 case MONO_TYPE_OBJECT:
3393 case MONO_TYPE_STRING:
3394 if (!type->data.klass)
3397 case MONO_TYPE_CLASS:
3398 case MONO_TYPE_VALUETYPE:
3399 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3403 mono_metadata_free_type (type->data.type);
3405 case MONO_TYPE_FNPTR:
3406 mono_metadata_free_method_signature (type->data.method);
3408 case MONO_TYPE_ARRAY:
3409 mono_metadata_free_array (type->data.array);
3420 hex_dump (const char *buffer, int base, int count)
3422 int show_header = 1;
3430 for (i = 0; i < count; i++){
3433 printf ("\n0x%08x: ", (unsigned char) base + i);
3435 printf ("%02x ", (unsigned char) (buffer [i]));
3442 * @ptr: Points to the beginning of the Section Data (25.3)
3444 static MonoExceptionClause*
3445 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3447 unsigned char sect_data_flags;
3449 guint32 sect_data_len;
3450 MonoExceptionClause* clauses = NULL;
3453 /* align on 32-bit boundary */
3454 ptr = dword_align (ptr);
3455 sect_data_flags = *ptr;
3458 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3460 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3463 sect_data_len = ptr [0];
3467 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3468 const unsigned char *p = dword_align (ptr);
3470 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3471 /* we could just store a pointer if we don't need to byteswap */
3472 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3473 for (i = 0; i < *num_clauses; ++i) {
3474 MonoExceptionClause *ec = &clauses [i];
3477 ec->flags = read32 (p);
3478 ec->try_offset = read32 (p + 4);
3479 ec->try_len = read32 (p + 8);
3480 ec->handler_offset = read32 (p + 12);
3481 ec->handler_len = read32 (p + 16);
3482 tof_value = read32 (p + 20);
3485 ec->flags = read16 (p);
3486 ec->try_offset = read16 (p + 2);
3487 ec->try_len = *(p + 4);
3488 ec->handler_offset = read16 (p + 5);
3489 ec->handler_len = *(p + 7);
3490 tof_value = read32 (p + 8);
3493 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3494 ec->data.filter_offset = tof_value;
3495 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3496 ec->data.catch_class = NULL;
3499 ec->data.catch_class = mono_class_get_checked (m, tof_value, &error);
3500 if (!mono_error_ok (&error)) {
3501 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3507 ec->data.catch_class = NULL;
3509 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3513 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3514 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3521 * mono_method_get_header_summary:
3522 * @method: The method to get the header.
3523 * @summary: Where to store the header
3526 * Returns: true if the header was properly decoded.
3529 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3535 unsigned char flags, format;
3538 /*Only the GMD has a pointer to the metadata.*/
3539 while (method->is_inflated)
3540 method = ((MonoMethodInflated*)method)->declaring;
3542 summary->code_size = 0;
3543 summary->has_clauses = FALSE;
3545 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3546 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))
3549 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3550 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3553 summary->code_size = header->code_size;
3554 summary->has_clauses = header->num_clauses > 0;
3559 idx = mono_metadata_token_index (method->token);
3560 img = method->klass->image;
3561 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3563 /*We must run the verifier since we'll be decoding it.*/
3564 if (!mono_verifier_verify_method_header (img, rva, NULL))
3567 ptr = mono_image_rva_map (img, rva);
3570 flags = *(const unsigned char *)ptr;
3571 format = flags & METHOD_HEADER_FORMAT_MASK;
3574 case METHOD_HEADER_TINY_FORMAT:
3576 summary->code_size = flags >> 2;
3578 case METHOD_HEADER_FAT_FORMAT:
3579 fat_flags = read16 (ptr);
3581 summary->code_size = read32 (ptr);
3582 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3583 summary->has_clauses = TRUE;
3592 * mono_metadata_parse_mh_full:
3593 * @m: metadata context
3594 * @generic_context: generics context
3595 * @ptr: pointer to the method header.
3597 * Decode the method header at @ptr, including pointer to the IL code,
3598 * info about local variables and optional exception tables.
3599 * This is a Mono runtime internal function.
3601 * LOCKING: Acquires the loader lock.
3603 * Returns: a transient MonoMethodHeader allocated from the heap.
3606 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3608 MonoMethodHeader *mh = NULL;
3609 unsigned char flags = *(const unsigned char *) ptr;
3610 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3612 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3613 const unsigned char *code;
3614 MonoExceptionClause* clauses = NULL;
3615 int num_clauses = 0;
3616 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3617 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3619 g_return_val_if_fail (ptr != NULL, NULL);
3622 case METHOD_HEADER_TINY_FORMAT:
3623 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3626 mh->is_transient = TRUE;
3627 local_var_sig_tok = 0;
3628 mh->code_size = flags >> 2;
3629 mh->code = (unsigned char*)ptr;
3631 case METHOD_HEADER_FAT_FORMAT:
3632 fat_flags = read16 (ptr);
3634 max_stack = read16 (ptr);
3636 code_size = read32 (ptr);
3638 local_var_sig_tok = read32 (ptr);
3641 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3646 code = (unsigned char*)ptr;
3648 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3652 * There are more sections
3654 ptr = (char*)code + code_size;
3660 if (local_var_sig_tok) {
3661 int idx = (local_var_sig_tok & 0xffffff)-1;
3662 if (idx >= t->rows || idx < 0)
3664 mono_metadata_decode_row (t, idx, cols, 1);
3666 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3669 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3670 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3671 if (local_var_sig_tok) {
3672 const char *locals_ptr;
3675 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3676 mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3677 if (*locals_ptr != 0x07)
3678 g_warning ("wrong signature for locals blob");
3680 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3681 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3682 mh->num_locals = len;
3683 for (i = 0; i < len; ++i) {
3684 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3685 MONO_PARSE_LOCAL, 0, TRUE, locals_ptr, &locals_ptr);
3686 if (!mh->locals [i])
3690 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3693 mh->code_size = code_size;
3694 mh->max_stack = max_stack;
3695 mh->is_transient = TRUE;
3696 mh->init_locals = init_locals;
3698 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3699 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3701 mh->clauses = clausesp;
3702 mh->num_clauses = num_clauses;
3713 * mono_metadata_parse_mh:
3714 * @generic_context: generics context
3715 * @ptr: pointer to the method header.
3717 * Decode the method header at @ptr, including pointer to the IL code,
3718 * info about local variables and optional exception tables.
3720 * Returns: a transient MonoMethodHeader allocated from the heap.
3723 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3725 return mono_metadata_parse_mh_full (m, NULL, ptr);
3729 * mono_metadata_free_mh:
3730 * @mh: a method header
3732 * Free the memory allocated for the method header.
3735 mono_metadata_free_mh (MonoMethodHeader *mh)
3739 /* If it is not transient it means it's part of a wrapper method,
3740 * or a SRE-generated method, so the lifetime in that case is
3741 * dictated by the method's own lifetime
3743 if (mh->is_transient) {
3744 for (i = 0; i < mh->num_locals; ++i)
3745 mono_metadata_free_type (mh->locals [i]);
3751 * mono_method_header_get_code:
3752 * @header: a MonoMethodHeader pointer
3753 * @code_size: memory location for returning the code size
3754 * @max_stack: memory location for returning the max stack
3756 * Method header accessor to retreive info about the IL code properties:
3757 * a pointer to the IL code itself, the size of the code and the max number
3758 * of stack slots used by the code.
3760 * Returns: pointer to the IL code represented by the method header.
3762 const unsigned char*
3763 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3766 *code_size = header->code_size;
3768 *max_stack = header->max_stack;
3769 return header->code;
3773 * mono_method_header_get_locals:
3774 * @header: a MonoMethodHeader pointer
3775 * @num_locals: memory location for returning the number of local variables
3776 * @init_locals: memory location for returning the init_locals flag
3778 * Method header accessor to retreive info about the local variables:
3779 * an array of local types, the number of locals and whether the locals
3780 * are supposed to be initialized to 0 on method entry
3782 * Returns: pointer to an array of types of the local variables
3785 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3788 *num_locals = header->num_locals;
3790 *init_locals = header->init_locals;
3791 return header->locals;
3795 * mono_method_header_get_num_clauses:
3796 * @header: a MonoMethodHeader pointer
3798 * Method header accessor to retreive the number of exception clauses.
3800 * Returns: the number of exception clauses present
3803 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3805 return header->num_clauses;
3809 * mono_method_header_get_clauses:
3810 * @header: a MonoMethodHeader pointer
3811 * @method: MonoMethod the header belongs to
3812 * @iter: pointer to a iterator
3813 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3815 * Get the info about the exception clauses in the method. Set *iter to NULL to
3816 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3817 * At each iteration, the structure pointed to by clause if filled with the
3818 * exception clause information.
3820 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3824 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3826 MonoExceptionClause *sc;
3827 /* later we'll be able to use this interface to parse the clause info on demand,
3828 * without allocating anything.
3830 if (!iter || !header->num_clauses)
3833 *iter = sc = header->clauses;
3839 if (sc < header->clauses + header->num_clauses) {
3848 * mono_metadata_parse_field_type:
3849 * @m: metadata context to extract information from
3850 * @ptr: pointer to the field signature
3851 * @rptr: pointer updated to match the end of the decoded stream
3853 * Parses the field signature, and returns the type information for it.
3855 * Returns: The MonoType that was extracted from @ptr.
3858 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3860 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3864 * mono_metadata_parse_param:
3865 * @m: metadata context to extract information from
3866 * @ptr: pointer to the param signature
3867 * @rptr: pointer updated to match the end of the decoded stream
3869 * Parses the param signature, and returns the type information for it.
3871 * Returns: The MonoType that was extracted from @ptr.
3874 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3876 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3880 * mono_metadata_token_from_dor:
3881 * @dor_token: A TypeDefOrRef coded index
3883 * dor_token is a TypeDefOrRef coded index: it contains either
3884 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3885 * bits contain an index into the table.
3887 * Returns: an expanded token
3890 mono_metadata_token_from_dor (guint32 dor_index)
3894 table = dor_index & 0x03;
3895 idx = dor_index >> 2;
3898 case 0: /* TypeDef */
3899 return MONO_TOKEN_TYPE_DEF | idx;
3900 case 1: /* TypeRef */
3901 return MONO_TOKEN_TYPE_REF | idx;
3902 case 2: /* TypeSpec */
3903 return MONO_TOKEN_TYPE_SPEC | idx;
3905 g_assert_not_reached ();
3912 * We use this to pass context information to the row locator
3915 int idx; /* The index that we are trying to locate */
3916 int col_idx; /* The index in the row where idx may be stored */
3917 MonoTableInfo *t; /* pointer to the table */
3922 * How the row locator works.
3927 * ___|___------> _______
3930 * A column in the rows of table A references an index in table B.
3931 * For example A may be the TYPEDEF table and B the METHODDEF table.
3933 * Given an index in table B we want to get the row in table A
3934 * where the column n references our index in B.
3936 * In the locator_t structure:
3938 * col_idx is the column number
3939 * index is the index in table B
3940 * result will be the index in table A
3943 * Table A Table B column (in table A)
3944 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3945 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3946 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3947 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3948 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3950 * Note that we still don't support encoded indexes.
3954 typedef_locator (const void *a, const void *b)
3956 locator_t *loc = (locator_t *) a;
3957 const char *bb = (const char *) b;
3958 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3959 guint32 col, col_next;
3961 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3967 * Need to check that the next row is valid.
3969 if (typedef_index + 1 < loc->t->rows) {
3970 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3971 if (loc->idx >= col_next)
3974 if (col == col_next)
3978 loc->result = typedef_index;
3984 table_locator (const void *a, const void *b)
3986 locator_t *loc = (locator_t *) a;
3987 const char *bb = (const char *) b;
3988 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3991 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3993 if (loc->idx == col) {
3994 loc->result = table_index;
4004 declsec_locator (const void *a, const void *b)
4006 locator_t *loc = (locator_t *) a;
4007 const char *bb = (const char *) b;
4008 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4011 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4013 if (loc->idx == col) {
4014 loc->result = table_index;
4026 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
4027 * which contains IDX.
4030 search_ptr_table (MonoImage *image, int table, int idx)
4032 MonoTableInfo *ptrdef = &image->tables [table];
4035 /* Use a linear search to find our index in the table */
4036 for (i = 0; i < ptrdef->rows; i ++)
4037 /* All the Ptr tables have the same structure */
4038 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
4041 if (i < ptrdef->rows)
4048 * mono_metadata_typedef_from_field:
4049 * @meta: metadata context
4050 * @index: FieldDef token
4052 * Returns: the 1-based index into the TypeDef table of the type that
4053 * declared the field described by @index, or 0 if not found.
4056 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
4058 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4064 loc.idx = mono_metadata_token_index (index);
4065 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
4068 if (meta->uncompressed_metadata)
4069 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4071 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4074 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4075 return loc.result + 1;
4079 * mono_metadata_typedef_from_method:
4080 * @meta: metadata context
4081 * @index: MethodDef token
4083 * Returns: the 1-based index into the TypeDef table of the type that
4084 * declared the method described by @index. 0 if not found.
4087 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
4089 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4095 loc.idx = mono_metadata_token_index (index);
4096 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
4099 if (meta->uncompressed_metadata)
4100 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
4102 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4105 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4106 return loc.result + 1;
4110 * mono_metadata_interfaces_from_typedef_full:
4111 * @meta: metadata context
4112 * @index: typedef token
4113 * @interfaces: Out parameter used to store the interface array
4114 * @count: Out parameter used to store the number of interfaces
4115 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
4116 * @context: The generic context
4118 * The array of interfaces that the @index typedef token implements is returned in
4119 * @interfaces. The number of elements in the array is returned in @count.
4122 * Returns: TRUE on success, FALSE on failure.
4125 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context, MonoError *error)
4127 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
4130 guint32 cols [MONO_INTERFACEIMPL_SIZE];
4136 mono_error_init (error);
4141 loc.idx = mono_metadata_token_index (index);
4142 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
4145 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4150 * We may end up in the middle of the rows...
4153 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4159 while (pos < tdef->rows) {
4160 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4161 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4166 if (heap_alloc_result)
4167 result = g_new0 (MonoClass*, pos - start);
4169 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4172 while (pos < tdef->rows) {
4175 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4176 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4178 iface = mono_class_get_and_inflate_typespec_checked (
4179 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context, error);
4182 result [pos - start] = iface;
4185 *count = pos - start;
4186 *interfaces = result;
4191 * @meta: metadata context
4192 * @index: typedef token
4193 * @count: Out parameter used to store the number of interfaces
4195 * The array of interfaces that the @index typedef token implements is returned in
4196 * @interfaces. The number of elements in the array is returned in @count. The returned
4197 * array is g_malloc'd and the caller must free it.
4199 * LOCKING: Acquires the loader lock .
4201 * Returns: the interface array on success, NULL on failure.
4205 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4208 MonoClass **interfaces = NULL;
4211 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL, &error);
4212 g_assert (mono_error_ok (&error)); /* FIXME dont swallow the error */
4220 * mono_metadata_nested_in_typedef:
4221 * @meta: metadata context
4222 * @index: typedef token
4224 * Returns: the 1-based index into the TypeDef table of the type
4225 * where the type described by @index is nested.
4226 * Returns 0 if @index describes a non-nested type.
4229 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4231 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4237 loc.idx = mono_metadata_token_index (index);
4238 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4241 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4244 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4245 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4249 * mono_metadata_nesting_typedef:
4250 * @meta: metadata context
4251 * @index: typedef token
4253 * Returns: the 1-based index into the TypeDef table of the first type
4254 * that is nested inside the type described by @index. The search starts at
4255 * @start_index. returns 0 if no such type is found.
4258 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4260 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4262 guint32 class_index = mono_metadata_token_index (index);
4267 start = start_index;
4269 while (start <= tdef->rows) {
4270 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4276 if (start > tdef->rows)
4283 * mono_metadata_packing_from_typedef:
4284 * @meta: metadata context
4285 * @index: token representing a type
4287 * Returns: the info stored in the ClassLAyout table for the given typedef token
4288 * into the @packing and @size pointers.
4289 * Returns 0 if the info is not found.
4292 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4294 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4296 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4301 loc.idx = mono_metadata_token_index (index);
4302 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4305 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4308 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4310 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4312 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4314 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4315 return loc.result + 1;
4319 * mono_metadata_custom_attrs_from_index:
4320 * @meta: metadata context
4321 * @index: token representing the parent
4323 * Returns: the 1-based index into the CustomAttribute table of the first
4324 * attribute which belongs to the metadata object described by @index.
4325 * Returns 0 if no such attribute is found.
4328 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4330 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4337 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4340 /* FIXME: Index translation */
4342 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4345 /* Find the first entry by searching backwards */
4346 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4349 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4350 return loc.result + 1;
4354 * mono_metadata_declsec_from_index:
4355 * @meta: metadata context
4356 * @index: token representing the parent
4358 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4359 * attribute which belongs to the metadata object described by @index.
4360 * Returns -1 if no such attribute is found.
4363 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4365 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4372 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4375 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4378 /* Find the first entry by searching backwards */
4379 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4386 * mono_metadata_localscope_from_methoddef:
4387 * @meta: metadata context
4388 * @index: methoddef index
4390 * Returns: the 1-based index into the LocalScope table of the first
4391 * scope which belongs to the method described by @index.
4392 * Returns 0 if no such row is found.
4395 mono_metadata_localscope_from_methoddef (MonoImage *meta, guint32 index)
4397 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_LOCALSCOPE];
4404 loc.col_idx = MONO_LOCALSCOPE_METHOD;
4407 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4410 /* Find the first entry by searching backwards */
4411 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_LOCALSCOPE_METHOD) == index))
4414 return loc.result + 1;
4419 mono_backtrace (int limit)
4424 backtrace (array, limit);
4425 names = backtrace_symbols (array, limit);
4426 for (i =0; i < limit; ++i) {
4427 g_print ("\t%s\n", names [i]);
4433 static int i8_align;
4436 * mono_type_set_alignment:
4438 * Set the alignment used by runtime to layout fields etc. of type TYPE to ALIGN.
4439 * This should only be used in AOT mode since the resulting layout will not match the
4443 mono_type_set_alignment (MonoTypeEnum type, int align)
4445 /* Support only a few types whose alignment is abi dependent */
4451 g_assert_not_reached ();
4458 * @t: the type to return the size of
4460 * Returns: the number of bytes required to hold an instance of this
4464 mono_type_size (MonoType *t, int *align)
4466 MonoTypeEnum simple_type;
4473 *align = MONO_ABI_ALIGNOF (gpointer);
4474 return sizeof (gpointer);
4477 simple_type = t->type;
4479 switch (simple_type) {
4480 case MONO_TYPE_VOID:
4483 case MONO_TYPE_BOOLEAN:
4484 *align = MONO_ABI_ALIGNOF (gint8);
4488 *align = MONO_ABI_ALIGNOF (gint8);
4490 case MONO_TYPE_CHAR:
4493 *align = MONO_ABI_ALIGNOF (gint16);
4497 *align = MONO_ABI_ALIGNOF (gint32);
4500 *align = MONO_ABI_ALIGNOF (float);
4504 *align = MONO_ABI_ALIGNOF (gint64);
4507 *align = MONO_ABI_ALIGNOF (double);
4511 *align = MONO_ABI_ALIGNOF (gpointer);
4512 return sizeof (gpointer);
4513 case MONO_TYPE_STRING:
4514 *align = MONO_ABI_ALIGNOF (gpointer);
4515 return sizeof (gpointer);
4516 case MONO_TYPE_OBJECT:
4517 *align = MONO_ABI_ALIGNOF (gpointer);
4518 return sizeof (gpointer);
4519 case MONO_TYPE_VALUETYPE: {
4520 if (t->data.klass->enumtype)
4521 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4523 return mono_class_value_size (t->data.klass, (guint32*)align);
4525 case MONO_TYPE_CLASS:
4526 case MONO_TYPE_SZARRAY:
4528 case MONO_TYPE_FNPTR:
4529 case MONO_TYPE_ARRAY:
4530 *align = MONO_ABI_ALIGNOF (gpointer);
4531 return sizeof (gpointer);
4532 case MONO_TYPE_TYPEDBYREF:
4533 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4534 case MONO_TYPE_GENERICINST: {
4535 MonoGenericClass *gclass = t->data.generic_class;
4536 MonoClass *container_class = gclass->container_class;
4538 // g_assert (!gclass->inst->is_open);
4540 if (container_class->valuetype) {
4541 if (container_class->enumtype)
4542 return mono_type_size (mono_class_enum_basetype (container_class), align);
4544 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4546 *align = MONO_ABI_ALIGNOF (gpointer);
4547 return sizeof (gpointer);
4551 case MONO_TYPE_MVAR:
4552 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4553 *align = MONO_ABI_ALIGNOF (gpointer);
4554 return sizeof (gpointer);
4556 /* The gparam can only match types given by gshared_constraint */
4557 return mono_type_size (t->data.generic_param->gshared_constraint, align);
4561 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4567 * mono_type_stack_size:
4568 * @t: the type to return the size it uses on the stack
4570 * Returns: the number of bytes required to hold an instance of this
4571 * type on the runtime stack
4574 mono_type_stack_size (MonoType *t, int *align)
4576 return mono_type_stack_size_internal (t, align, FALSE);
4580 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4583 MonoTypeEnum simple_type;
4584 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4585 int stack_slot_size = sizeof (gpointer);
4586 int stack_slot_align = MONO_ABI_ALIGNOF (gpointer);
4587 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4588 int stack_slot_size = SIZEOF_REGISTER;
4589 int stack_slot_align = SIZEOF_REGISTER;
4592 g_assert (t != NULL);
4598 *align = stack_slot_align;
4599 return stack_slot_size;
4602 simple_type = t->type;
4603 switch (simple_type) {
4604 case MONO_TYPE_BOOLEAN:
4605 case MONO_TYPE_CHAR:
4614 case MONO_TYPE_STRING:
4615 case MONO_TYPE_OBJECT:
4616 case MONO_TYPE_CLASS:
4617 case MONO_TYPE_SZARRAY:
4619 case MONO_TYPE_FNPTR:
4620 case MONO_TYPE_ARRAY:
4621 *align = stack_slot_align;
4622 return stack_slot_size;
4624 case MONO_TYPE_MVAR:
4625 g_assert (allow_open);
4626 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4627 *align = stack_slot_align;
4628 return stack_slot_size;
4630 /* The gparam can only match types given by gshared_constraint */
4631 return mono_type_stack_size_internal (t->data.generic_param->gshared_constraint, align, allow_open);
4633 case MONO_TYPE_TYPEDBYREF:
4634 *align = stack_slot_align;
4635 return stack_slot_size * 3;
4637 *align = MONO_ABI_ALIGNOF (float);
4638 return sizeof (float);
4641 *align = MONO_ABI_ALIGNOF (gint64);
4642 return sizeof (gint64);
4644 *align = MONO_ABI_ALIGNOF (double);
4645 return sizeof (double);
4646 case MONO_TYPE_VALUETYPE: {
4649 if (t->data.klass->enumtype)
4650 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4652 size = mono_class_value_size (t->data.klass, (guint32*)align);
4654 *align = *align + stack_slot_align - 1;
4655 *align &= ~(stack_slot_align - 1);
4657 size += stack_slot_size - 1;
4658 size &= ~(stack_slot_size - 1);
4663 case MONO_TYPE_GENERICINST: {
4664 MonoGenericClass *gclass = t->data.generic_class;
4665 MonoClass *container_class = gclass->container_class;
4668 g_assert (!gclass->context.class_inst->is_open);
4670 if (container_class->valuetype) {
4671 if (container_class->enumtype)
4672 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4674 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4676 *align = *align + stack_slot_align - 1;
4677 *align &= ~(stack_slot_align - 1);
4679 size += stack_slot_size - 1;
4680 size &= ~(stack_slot_size - 1);
4685 *align = stack_slot_align;
4686 return stack_slot_size;
4690 g_error ("type 0x%02x unknown", t->type);
4696 mono_type_generic_inst_is_valuetype (MonoType *type)
4698 g_assert (type->type == MONO_TYPE_GENERICINST);
4699 return type->data.generic_class->container_class->valuetype;
4703 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4705 return gclass->container_class->valuetype;
4709 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4711 MonoGenericInst *i1 = g1->context.class_inst;
4712 MonoGenericInst *i2 = g2->context.class_inst;
4714 if (g1->is_dynamic != g2->is_dynamic)
4716 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4718 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4720 return g1->is_tb_open == g2->is_tb_open;
4724 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4726 MonoGenericInst *i1 = g1->context.class_inst;
4727 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4729 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4731 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4733 return !g1->is_tb_open;
4737 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4739 /* FIXME: check if this seed is good enough */
4740 guint hash = 0xc01dfee7;
4741 if (context->class_inst)
4742 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4743 if (context->method_inst)
4744 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4749 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4751 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4755 * mono_metadata_str_hash:
4757 * This should be used instead of g_str_hash for computing hash codes visible
4758 * outside this module, since g_str_hash () is not guaranteed to be stable
4759 * (its not the same in eglib for example).
4762 mono_metadata_str_hash (gconstpointer v1)
4764 /* Same as g_str_hash () in glib */
4765 char *p = (char *) v1;
4770 hash = (hash << 5) - hash + *p;
4777 * mono_metadata_type_hash:
4780 * Computes an hash value for @t1 to be used in GHashTable.
4781 * The returned hash is guaranteed to be the same across executions.
4784 mono_metadata_type_hash (MonoType *t1)
4786 guint hash = t1->type;
4788 hash |= t1->byref << 6; /* do not collide with t1->type values */
4790 case MONO_TYPE_VALUETYPE:
4791 case MONO_TYPE_CLASS:
4792 case MONO_TYPE_SZARRAY: {
4793 MonoClass *class = t1->data.klass;
4795 * Dynamic classes must not be hashed on their type since it can change
4796 * during runtime. For example, if we hash a reference type that is
4797 * later made into a valuetype.
4799 * This is specially problematic with generic instances since they are
4800 * inserted in a bunch of hash tables before been finished.
4802 if (image_is_dynamic (class->image))
4803 return (t1->byref << 6) | mono_metadata_str_hash (class->name);
4804 return ((hash << 5) - hash) ^ mono_metadata_str_hash (class->name);
4807 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4808 case MONO_TYPE_ARRAY:
4809 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4810 case MONO_TYPE_GENERICINST:
4811 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4813 case MONO_TYPE_MVAR:
4814 return ((hash << 5) - hash) ^ mono_metadata_generic_param_hash (t1->data.generic_param);
4821 mono_metadata_generic_param_hash (MonoGenericParam *p)
4824 MonoGenericParamInfo *info;
4826 hash = (mono_generic_param_num (p) << 2);
4827 if (p->gshared_constraint)
4828 hash = ((hash << 5) - hash) ^ mono_metadata_type_hash (p->gshared_constraint);
4829 info = mono_generic_param_info (p);
4830 /* Can't hash on the owner klass/method, since those might not be set when this is called */
4832 hash = ((hash << 5) - hash) ^ info->token;
4837 mono_metadata_generic_param_equal_internal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4841 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4843 if (p1->gshared_constraint && p2->gshared_constraint) {
4844 if (!mono_metadata_type_equal (p1->gshared_constraint, p2->gshared_constraint))
4847 if (p1->gshared_constraint != p2->gshared_constraint)
4852 * We have to compare the image as well because if we didn't,
4853 * the generic_inst_cache lookup wouldn't care about the image
4854 * of generic params, so what could happen is that a generic
4855 * inst with params from image A is put into the cache, then
4856 * image B gets that generic inst from the cache, image A is
4857 * unloaded, so the inst is deleted, but image B still retains
4860 * The AOT runtime doesn't set the image when it's decoding
4861 * types, so we only compare it when the owner is NULL.
4863 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4864 (mono_generic_param_owner (p1) || p1->image == p2->image))
4868 * If `signature_only' is true, we're comparing two (method) signatures.
4869 * In this case, the owner of two type parameters doesn't need to match.
4872 return signature_only;
4876 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2)
4878 return mono_metadata_generic_param_equal_internal (p1, p2, TRUE);
4882 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4886 if (c1->generic_class && c2->generic_class)
4887 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4888 if (c1->generic_class && c2->generic_container)
4889 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4890 if (c1->generic_container && c2->generic_class)
4891 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4892 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4893 return mono_metadata_generic_param_equal_internal (
4894 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4895 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4896 return mono_metadata_generic_param_equal_internal (
4897 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4898 if (signature_only &&
4899 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4900 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4901 if (signature_only &&
4902 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
4903 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
4908 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4910 gpointer iter1 = 0, iter2 = 0;
4914 if (s1->call_convention != s2->call_convention)
4916 if (s1->sentinelpos != s2->sentinelpos)
4918 if (s1->hasthis != s2->hasthis)
4920 if (s1->explicit_this != s2->explicit_this)
4922 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4924 if (s1->param_count != s2->param_count)
4928 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4929 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4931 if (t1 == NULL || t2 == NULL)
4933 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4939 * mono_metadata_type_equal:
4943 * Determine if @t1 and @t2 represent the same type.
4944 * Returns: #TRUE if @t1 and @t2 are equal.
4947 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4949 if (t1->type != t2->type || t1->byref != t2->byref)
4953 case MONO_TYPE_VOID:
4954 case MONO_TYPE_BOOLEAN:
4955 case MONO_TYPE_CHAR:
4966 case MONO_TYPE_STRING:
4969 case MONO_TYPE_OBJECT:
4970 case MONO_TYPE_TYPEDBYREF:
4972 case MONO_TYPE_VALUETYPE:
4973 case MONO_TYPE_CLASS:
4974 case MONO_TYPE_SZARRAY:
4975 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4977 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4978 case MONO_TYPE_ARRAY:
4979 if (t1->data.array->rank != t2->data.array->rank)
4981 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4982 case MONO_TYPE_GENERICINST:
4983 return _mono_metadata_generic_class_equal (
4984 t1->data.generic_class, t2->data.generic_class, signature_only);
4986 return mono_metadata_generic_param_equal_internal (
4987 t1->data.generic_param, t2->data.generic_param, signature_only);
4988 case MONO_TYPE_MVAR:
4989 return mono_metadata_generic_param_equal_internal (
4990 t1->data.generic_param, t2->data.generic_param, signature_only);
4991 case MONO_TYPE_FNPTR:
4992 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4994 g_error ("implement type compare for %0x!", t1->type);
5002 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
5004 return do_mono_metadata_type_equal (t1, t2, FALSE);
5008 * mono_metadata_type_equal_full:
5011 * @signature_only: if signature only comparison should be made
5013 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
5014 * behaves the same way as mono_metadata_type_equal.
5015 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
5016 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
5019 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
5021 return do_mono_metadata_type_equal (t1, t2, signature_only);
5025 * mono_metadata_signature_equal:
5026 * @sig1: a signature
5027 * @sig2: another signature
5029 * Determine if @sig1 and @sig2 represent the same signature, with the
5030 * same number of arguments and the same types.
5031 * Returns: #TRUE if @sig1 and @sig2 are equal.
5034 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
5038 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
5041 if (sig1->generic_param_count != sig2->generic_param_count)
5045 * We're just comparing the signatures of two methods here:
5047 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
5048 * U and V are equal here.
5050 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
5053 for (i = 0; i < sig1->param_count; i++) {
5054 MonoType *p1 = sig1->params[i];
5055 MonoType *p2 = sig2->params[i];
5057 /* if (p1->attrs != p2->attrs)
5060 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
5064 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
5070 * mono_metadata_type_dup:
5071 * @image: image to alloc memory from
5072 * @original: type to duplicate
5074 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
5077 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
5080 int sizeof_o = MONO_SIZEOF_TYPE;
5082 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
5084 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
5086 memcpy (r, o, sizeof_o);
5088 if (o->type == MONO_TYPE_PTR) {
5089 r->data.type = mono_metadata_type_dup (image, o->data.type);
5090 } else if (o->type == MONO_TYPE_ARRAY) {
5091 r->data.array = mono_dup_array_type (image, o->data.array);
5092 } else if (o->type == MONO_TYPE_FNPTR) {
5093 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
5094 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
5100 mono_signature_hash (MonoMethodSignature *sig)
5102 guint i, res = sig->ret->type;
5104 for (i = 0; i < sig->param_count; i++)
5105 res = (res << 5) - res + mono_type_hash (sig->params[i]);
5111 * mono_metadata_encode_value:
5112 * @value: value to encode
5113 * @buf: buffer where to write the compressed representation
5114 * @endbuf: pointer updated to point at the end of the encoded output
5116 * Encodes the value @value in the compressed representation used
5117 * in metadata and stores the result in @buf. @buf needs to be big
5118 * enough to hold the data (4 bytes).
5121 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
5127 else if (value < 0x4000) {
5128 p [0] = 0x80 | (value >> 8);
5129 p [1] = value & 0xff;
5132 p [0] = (value >> 24) | 0xc0;
5133 p [1] = (value >> 16) & 0xff;
5134 p [2] = (value >> 8) & 0xff;
5135 p [3] = value & 0xff;
5143 * mono_metadata_field_info:
5144 * @meta: the Image the field is defined in
5145 * @index: the index in the field table representing the field
5146 * @offset: a pointer to an integer where to store the offset that
5147 * may have been specified for the field in a FieldLayout table
5148 * @rva: a pointer to the RVA of the field data in the image that
5149 * may have been defined in a FieldRVA table
5150 * @marshal_spec: a pointer to the marshal spec that may have been
5151 * defined for the field in a FieldMarshal table.
5153 * Gather info for field @index that may have been defined in the FieldLayout,
5154 * FieldRVA and FieldMarshal tables.
5155 * Either of offset, rva and marshal_spec can be NULL if you're not interested
5159 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5160 MonoMarshalSpec **marshal_spec)
5162 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
5166 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5167 MonoMarshalSpec **marshal_spec)
5169 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
5173 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5174 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
5176 MonoTableInfo *tdef;
5179 loc.idx = index + 1;
5180 if (meta->uncompressed_metadata)
5181 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
5184 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
5186 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
5189 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5190 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
5192 *offset = (guint32)-1;
5196 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
5198 loc.col_idx = MONO_FIELD_RVA_FIELD;
5201 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5203 * LAMESPEC: There is no signature, no nothing, just the raw data.
5205 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
5213 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
5214 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, meta, p);
5221 * mono_metadata_get_constant_index:
5222 * @meta: the Image the field is defined in
5223 * @index: the token that may have a row defined in the constants table
5224 * @hint: possible position for the row
5226 * @token must be a FieldDef, ParamDef or PropertyDef token.
5228 * Returns: the index into the Constants table or 0 if not found.
5231 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
5233 MonoTableInfo *tdef;
5235 guint32 index = mono_metadata_token_index (token);
5237 tdef = &meta->tables [MONO_TABLE_CONSTANT];
5238 index <<= MONO_HASCONSTANT_BITS;
5239 switch (mono_metadata_token_table (token)) {
5240 case MONO_TABLE_FIELD:
5241 index |= MONO_HASCONSTANT_FIEDDEF;
5243 case MONO_TABLE_PARAM:
5244 index |= MONO_HASCONSTANT_PARAM;
5246 case MONO_TABLE_PROPERTY:
5247 index |= MONO_HASCONSTANT_PROPERTY;
5250 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5254 loc.col_idx = MONO_CONSTANT_PARENT;
5257 /* FIXME: Index translation */
5259 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5262 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5263 return loc.result + 1;
5269 * mono_metadata_events_from_typedef:
5270 * @meta: metadata context
5271 * @index: 0-based index (in the TypeDef table) describing a type
5273 * Returns: the 0-based index in the Event table for the events in the
5274 * type. The last event that belongs to the type (plus 1) is stored
5275 * in the @end_idx pointer.
5278 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5282 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5290 loc.col_idx = MONO_EVENT_MAP_PARENT;
5291 loc.idx = index + 1;
5293 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5296 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5297 if (loc.result + 1 < tdef->rows) {
5298 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5300 end = meta->tables [MONO_TABLE_EVENT].rows;
5308 * mono_metadata_methods_from_event:
5309 * @meta: metadata context
5310 * @index: 0-based index (in the Event table) describing a event
5312 * Returns: the 0-based index in the MethodDef table for the methods in the
5313 * event. The last method that belongs to the event (plus 1) is stored
5314 * in the @end_idx pointer.
5317 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5321 guint32 cols [MONO_METHOD_SEMA_SIZE];
5322 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5328 if (meta->uncompressed_metadata)
5329 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5332 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5333 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5335 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5340 * We may end up in the middle of the rows...
5343 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5349 while (end < msemt->rows) {
5350 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5351 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5360 * mono_metadata_properties_from_typedef:
5361 * @meta: metadata context
5362 * @index: 0-based index (in the TypeDef table) describing a type
5364 * Returns: the 0-based index in the Property table for the properties in the
5365 * type. The last property that belongs to the type (plus 1) is stored
5366 * in the @end_idx pointer.
5369 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5373 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5381 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5382 loc.idx = index + 1;
5384 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5387 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5388 if (loc.result + 1 < tdef->rows) {
5389 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5391 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5399 * mono_metadata_methods_from_property:
5400 * @meta: metadata context
5401 * @index: 0-based index (in the PropertyDef table) describing a property
5403 * Returns: the 0-based index in the MethodDef table for the methods in the
5404 * property. The last method that belongs to the property (plus 1) is stored
5405 * in the @end_idx pointer.
5408 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5412 guint32 cols [MONO_METHOD_SEMA_SIZE];
5413 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5419 if (meta->uncompressed_metadata)
5420 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5423 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5424 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5426 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5431 * We may end up in the middle of the rows...
5434 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5440 while (end < msemt->rows) {
5441 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5442 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5451 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5454 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5459 /* No index translation seems to be needed */
5462 loc.col_idx = MONO_IMPLMAP_MEMBER;
5463 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5465 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5468 return loc.result + 1;
5472 * @image: context where the image is created
5473 * @type_spec: typespec token
5474 * @deprecated use mono_type_create_from_typespec_checked that has proper error handling
5476 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5480 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5483 MonoType *type = mono_type_create_from_typespec_checked (image, type_spec, &error);
5485 g_error ("Could not create typespec %x due to %s", type_spec, mono_error_get_message (&error));
5490 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error)
5493 guint32 idx = mono_metadata_token_index (type_spec);
5495 guint32 cols [MONO_TYPESPEC_SIZE];
5497 MonoType *type, *type2;
5499 mono_error_init (error);
5501 mono_image_lock (image);
5502 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5503 mono_image_unlock (image);
5507 t = &image->tables [MONO_TABLE_TYPESPEC];
5509 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5510 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5512 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5513 mono_error_set_bad_image (error, image, "Could not verify type spec %08x.", type_spec);
5517 mono_metadata_decode_value (ptr, &ptr);
5519 type = mono_metadata_parse_type_internal (image, NULL, MONO_PARSE_TYPE, 0, TRUE, ptr, &ptr);
5521 if (mono_loader_get_last_error ())
5522 mono_error_set_from_loader_error (error);
5524 mono_error_set_bad_image (error, image, "Could not parse type spec %08x.", type_spec);
5528 type2 = mono_metadata_type_dup (image, type);
5529 mono_metadata_free_type (type);
5531 mono_image_lock (image);
5532 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5533 /* We might leak some data in the image mempool if found */
5535 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5538 mono_image_unlock (image);
5545 mono_image_strndup (MonoImage *image, const char *data, guint len)
5549 return g_strndup (data, len);
5550 res = mono_image_alloc (image, len + 1);
5551 memcpy (res, data, len);
5557 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5559 return mono_metadata_parse_marshal_spec_full (NULL, image, ptr);
5563 * If IMAGE is non-null, memory will be allocated from its mempool, otherwise it will be allocated using malloc.
5564 * PARENT_IMAGE is the image containing the marshal spec.
5567 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr)
5569 MonoMarshalSpec *res;
5571 const char *start = ptr;
5573 /* fixme: this is incomplete, but I cant find more infos in the specs */
5576 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5578 res = g_new0 (MonoMarshalSpec, 1);
5580 len = mono_metadata_decode_value (ptr, &ptr);
5581 res->native = *ptr++;
5583 if (res->native == MONO_NATIVE_LPARRAY) {
5584 res->data.array_data.param_num = -1;
5585 res->data.array_data.num_elem = -1;
5586 res->data.array_data.elem_mult = -1;
5588 if (ptr - start <= len)
5589 res->data.array_data.elem_type = *ptr++;
5590 if (ptr - start <= len)
5591 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5592 if (ptr - start <= len)
5593 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5594 if (ptr - start <= len) {
5596 * LAMESPEC: Older spec versions say this parameter comes before
5597 * num_elem. Never spec versions don't talk about elem_mult at
5598 * all, but csc still emits it, and it is used to distinguish
5599 * between param_num being 0, and param_num being omitted.
5600 * So if (param_num == 0) && (num_elem > 0), then
5601 * elem_mult == 0 -> the array size is num_elem
5602 * elem_mult == 1 -> the array size is @param_num + num_elem
5604 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5608 if (res->native == MONO_NATIVE_BYVALTSTR) {
5609 if (ptr - start <= len)
5610 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5613 if (res->native == MONO_NATIVE_BYVALARRAY) {
5614 if (ptr - start <= len)
5615 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5618 if (res->native == MONO_NATIVE_CUSTOM) {
5619 /* skip unused type guid */
5620 len = mono_metadata_decode_value (ptr, &ptr);
5622 /* skip unused native type name */
5623 len = mono_metadata_decode_value (ptr, &ptr);
5625 /* read custom marshaler type name */
5626 len = mono_metadata_decode_value (ptr, &ptr);
5627 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5629 /* read cookie string */
5630 len = mono_metadata_decode_value (ptr, &ptr);
5631 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5632 res->data.custom_data.image = parent_image;
5635 if (res->native == MONO_NATIVE_SAFEARRAY) {
5636 res->data.safearray_data.elem_type = 0;
5637 res->data.safearray_data.num_elem = 0;
5638 if (ptr - start <= len)
5639 res->data.safearray_data.elem_type = *ptr++;
5640 if (ptr - start <= len)
5641 res->data.safearray_data.num_elem = *ptr++;
5647 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5649 if (spec->native == MONO_NATIVE_CUSTOM) {
5650 g_free (spec->data.custom_data.custom_name);
5651 g_free (spec->data.custom_data.cookie);
5657 * mono_type_to_unmanaged:
5659 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5660 * describing the underlying native reprensetation of the type.
5662 * In addition the value pointed by
5663 * "conv" will contain the kind of marshalling required for this
5664 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5667 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5668 gboolean unicode, MonoMarshalConv *conv)
5670 MonoMarshalConv dummy_conv;
5676 *conv = MONO_MARSHAL_CONV_NONE;
5679 return MONO_NATIVE_UINT;
5683 case MONO_TYPE_BOOLEAN:
5685 switch (mspec->native) {
5686 case MONO_NATIVE_VARIANTBOOL:
5687 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5688 return MONO_NATIVE_VARIANTBOOL;
5689 case MONO_NATIVE_BOOLEAN:
5690 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5691 return MONO_NATIVE_BOOLEAN;
5692 case MONO_NATIVE_I1:
5693 case MONO_NATIVE_U1:
5694 return mspec->native;
5696 g_error ("cant marshal bool to native type %02x", mspec->native);
5699 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5700 return MONO_NATIVE_BOOLEAN;
5701 case MONO_TYPE_CHAR:
5703 switch (mspec->native) {
5704 case MONO_NATIVE_U2:
5705 case MONO_NATIVE_U1:
5706 return mspec->native;
5708 g_error ("cant marshal char to native type %02x", mspec->native);
5711 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5712 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5713 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5714 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5715 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5716 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5717 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5718 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5719 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5720 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5721 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5722 case MONO_TYPE_STRING:
5724 switch (mspec->native) {
5725 case MONO_NATIVE_BSTR:
5726 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5727 return MONO_NATIVE_BSTR;
5728 case MONO_NATIVE_LPSTR:
5729 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5730 return MONO_NATIVE_LPSTR;
5731 case MONO_NATIVE_LPWSTR:
5732 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5733 return MONO_NATIVE_LPWSTR;
5734 case MONO_NATIVE_LPTSTR:
5735 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5736 return MONO_NATIVE_LPTSTR;
5737 case MONO_NATIVE_ANSIBSTR:
5738 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5739 return MONO_NATIVE_ANSIBSTR;
5740 case MONO_NATIVE_TBSTR:
5741 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5742 return MONO_NATIVE_TBSTR;
5743 case MONO_NATIVE_BYVALTSTR:
5745 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5747 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5748 return MONO_NATIVE_BYVALTSTR;
5750 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);
5754 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5755 return MONO_NATIVE_LPWSTR;
5758 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5759 return MONO_NATIVE_LPSTR;
5761 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5762 case MONO_TYPE_VALUETYPE: /*FIXME*/
5763 if (type->data.klass->enumtype) {
5764 t = mono_class_enum_basetype (type->data.klass)->type;
5767 if (type->data.klass == mono_defaults.handleref_class){
5768 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5769 return MONO_NATIVE_INT;
5771 return MONO_NATIVE_STRUCT;
5772 case MONO_TYPE_SZARRAY:
5773 case MONO_TYPE_ARRAY:
5775 switch (mspec->native) {
5776 case MONO_NATIVE_BYVALARRAY:
5777 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5778 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5780 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5781 return MONO_NATIVE_BYVALARRAY;
5782 case MONO_NATIVE_SAFEARRAY:
5783 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5784 return MONO_NATIVE_SAFEARRAY;
5785 case MONO_NATIVE_LPARRAY:
5786 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5787 return MONO_NATIVE_LPARRAY;
5789 g_error ("cant marshal array as native type %02x", mspec->native);
5793 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5794 return MONO_NATIVE_LPARRAY;
5795 case MONO_TYPE_I: return MONO_NATIVE_INT;
5796 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5797 case MONO_TYPE_CLASS:
5798 case MONO_TYPE_OBJECT: {
5799 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5801 switch (mspec->native) {
5802 case MONO_NATIVE_STRUCT:
5803 return MONO_NATIVE_STRUCT;
5804 case MONO_NATIVE_CUSTOM:
5805 return MONO_NATIVE_CUSTOM;
5806 case MONO_NATIVE_INTERFACE:
5807 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5808 return MONO_NATIVE_INTERFACE;
5809 case MONO_NATIVE_IDISPATCH:
5810 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5811 return MONO_NATIVE_IDISPATCH;
5812 case MONO_NATIVE_IUNKNOWN:
5813 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5814 return MONO_NATIVE_IUNKNOWN;
5815 case MONO_NATIVE_FUNC:
5816 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5817 type->data.klass == mono_defaults.delegate_class ||
5818 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5819 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5820 return MONO_NATIVE_FUNC;
5824 g_error ("cant marshal object as native type %02x", mspec->native);
5827 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5828 type->data.klass == mono_defaults.delegate_class ||
5829 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5830 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5831 return MONO_NATIVE_FUNC;
5833 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5834 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5835 return MONO_NATIVE_INT;
5837 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5838 return MONO_NATIVE_STRUCT;
5840 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5841 case MONO_TYPE_GENERICINST:
5842 type = &type->data.generic_class->container_class->byval_arg;
5845 case MONO_TYPE_TYPEDBYREF:
5847 g_error ("type 0x%02x not handled in marshal", t);
5849 return MONO_NATIVE_MAX;
5853 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5856 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5862 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5863 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5865 /* FIXME: Index translation */
5867 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5870 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5874 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error)
5876 MonoMethod *result = NULL;
5877 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5879 mono_error_init (error);
5881 switch (tok & MONO_METHODDEFORREF_MASK) {
5882 case MONO_METHODDEFORREF_METHODDEF:
5883 result = mono_get_method_checked (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context, error);
5885 case MONO_METHODDEFORREF_METHODREF:
5886 result = mono_get_method_checked (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context, error);
5889 mono_error_set_bad_image (error, m, "Invalid MethodDefOfRef token %x", tok);
5896 * mono_class_get_overrides_full:
5898 * Return the method overrides belonging to class @type_token in @overrides, and
5899 * the number of overrides in @num_overrides.
5901 * Returns: TRUE on success, FALSE on failure.
5904 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5905 MonoGenericContext *generic_context)
5909 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5912 guint32 cols [MONO_METHODIMPL_SIZE];
5913 MonoMethod **result;
5924 loc.col_idx = MONO_METHODIMPL_CLASS;
5925 loc.idx = mono_metadata_token_index (type_token);
5927 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5933 * We may end up in the middle of the rows...
5936 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5941 while (end < tdef->rows) {
5942 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5948 result = g_new (MonoMethod*, num * 2);
5949 for (i = 0; i < num; ++i) {
5952 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
5953 mono_error_cleanup (&error); /* FIXME don't swallow the error */
5958 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5959 method = method_from_method_def_or_ref (
5960 image, cols [MONO_METHODIMPL_DECLARATION], generic_context, &error);
5961 if (method == NULL) {
5962 mono_error_cleanup (&error); /* FIXME don't swallow the error */
5965 result [i * 2] = method;
5966 method = method_from_method_def_or_ref (
5967 image, cols [MONO_METHODIMPL_BODY], generic_context, &error);
5968 if (method == NULL) {
5969 mono_error_cleanup (&error); /* FIXME don't swallow the error */
5972 result [i * 2 + 1] = method;
5975 *overrides = result;
5977 *num_overrides = num;
5982 * mono_guid_to_string:
5984 * Converts a 16 byte Microsoft GUID to the standard string representation.
5987 mono_guid_to_string (const guint8 *guid)
5989 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5990 guid[3], guid[2], guid[1], guid[0],
5994 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
5998 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container, MonoError *error)
6000 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
6001 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
6002 guint32 i, token, found;
6003 MonoClass *klass, **res;
6004 GSList *cons = NULL, *tmp;
6005 MonoGenericContext *context = &container->context;
6007 mono_error_init (error);
6009 *constraints = NULL;
6011 for (i = 0; i < tdef->rows; ++i) {
6012 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
6013 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
6014 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
6015 klass = mono_class_get_and_inflate_typespec_checked (image, token, context, error);
6017 g_slist_free (cons);
6020 cons = g_slist_append (cons, klass);
6023 /* contiguous list finished */
6030 res = mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
6031 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
6032 res [i] = tmp->data;
6034 g_slist_free (cons);
6040 * mono_metadata_get_generic_param_row:
6043 * @token: TypeOrMethodDef token, owner for GenericParam
6044 * @owner: coded token, set on return
6046 * Returns: 1-based row-id in the GenericParam table whose
6047 * owner is @token. 0 if not found.
6050 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
6052 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6059 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
6060 *owner = MONO_TYPEORMETHOD_TYPE;
6061 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6062 *owner = MONO_TYPEORMETHOD_METHOD;
6064 g_error ("wrong token %x to get_generic_param_row", token);
6067 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
6070 loc.col_idx = MONO_GENERICPARAM_OWNER;
6073 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6076 /* Find the first entry by searching backwards */
6077 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
6080 return loc.result + 1;
6084 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
6087 return mono_metadata_get_generic_param_row (image, token, &owner);
6091 * Memory is allocated from IMAGE's mempool.
6094 mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
6095 MonoGenericContainer *container, MonoError *error)
6098 guint32 start_row, i, owner;
6099 mono_error_init (error);
6101 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
6103 for (i = 0; i < container->type_argc; i++) {
6104 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container, error)) {
6105 mono_loader_assert_no_error ();
6113 * mono_metadata_load_generic_params:
6115 * Load the type parameters from the type or method definition @token.
6117 * Use this method after parsing a type or method definition to figure out whether it's a generic
6118 * type / method. When parsing a method definition, @parent_container points to the generic container
6119 * of the current class, if any.
6121 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
6122 * creating the type.
6124 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
6126 * LOCKING: Acquires the loader lock
6129 MonoGenericContainer *
6130 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
6132 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6133 guint32 cols [MONO_GENERICPARAM_SIZE];
6134 guint32 i, owner = 0, n;
6135 MonoGenericContainer *container;
6136 MonoGenericParamFull *params;
6137 MonoGenericContext *context;
6139 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
6141 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6144 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
6145 container->image = image;
6148 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
6149 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
6150 params [n - 1].param.owner = container;
6151 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
6152 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
6153 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
6154 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
6155 if (params [n - 1].param.num != n - 1)
6156 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
6157 if (++i > tdef->rows)
6159 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6160 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
6162 container->type_argc = n;
6163 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
6164 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
6166 container->parent = parent_container;
6168 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6169 container->is_method = 1;
6171 g_assert (container->parent == NULL || container->is_method);
6173 context = &container->context;
6174 if (container->is_method) {
6175 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
6176 context->method_inst = mono_get_shared_generic_inst (container);
6178 context->class_inst = mono_get_shared_generic_inst (container);
6185 mono_get_shared_generic_inst (MonoGenericContainer *container)
6187 MonoType **type_argv;
6189 MonoGenericInst *nginst;
6192 type_argv = g_new0 (MonoType *, container->type_argc);
6193 helper = g_new0 (MonoType, container->type_argc);
6195 for (i = 0; i < container->type_argc; i++) {
6196 MonoType *t = &helper [i];
6198 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
6199 t->data.generic_param = mono_generic_container_get_param (container, i);
6204 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
6213 * mono_type_is_byref:
6214 * @type: the MonoType operated on
6216 * Returns: #TRUE if @type represents a type passed by reference,
6220 mono_type_is_byref (MonoType *type)
6226 * mono_type_get_type:
6227 * @type: the MonoType operated on
6229 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
6230 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
6233 mono_type_get_type (MonoType *type)
6239 * mono_type_get_signature:
6240 * @type: the MonoType operated on
6242 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
6244 * Returns: the MonoMethodSignature pointer that describes the signature
6245 * of the function pointer @type represents.
6247 MonoMethodSignature*
6248 mono_type_get_signature (MonoType *type)
6250 g_assert (type->type == MONO_TYPE_FNPTR);
6251 return type->data.method;
6255 * mono_type_get_class:
6256 * @type: the MonoType operated on
6258 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
6259 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
6262 * Returns: the MonoClass pointer that describes the class that @type represents.
6265 mono_type_get_class (MonoType *type)
6267 /* FIXME: review the runtime users before adding the assert here */
6268 return type->data.klass;
6272 * mono_type_get_array_type:
6273 * @type: the MonoType operated on
6275 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6277 * Returns: a MonoArrayType struct describing the array type that @type
6278 * represents. The info includes details such as rank, array element type
6279 * and the sizes and bounds of multidimensional arrays.
6282 mono_type_get_array_type (MonoType *type)
6284 return type->data.array;
6288 * mono_type_get_ptr_type:
6289 * @type: the MonoType operated on
6291 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6294 * Returns: the MonoType pointer that describes the type that @type
6295 * represents a pointer to.
6298 mono_type_get_ptr_type (MonoType *type)
6300 g_assert (type->type == MONO_TYPE_PTR);
6301 return type->data.type;
6305 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6307 /* FIXME: implement */
6312 * mono_type_is_struct:
6313 * @type: the MonoType operated on
6315 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6316 * or a basic type like System.Int32. #FALSE otherwise.
6319 mono_type_is_struct (MonoType *type)
6321 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6322 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6323 ((type->type == MONO_TYPE_GENERICINST) &&
6324 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6325 !type->data.generic_class->container_class->enumtype)));
6329 * mono_type_is_void:
6330 * @type: the MonoType operated on
6332 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6335 mono_type_is_void (MonoType *type)
6337 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6341 * mono_type_is_pointer:
6342 * @type: the MonoType operated on
6344 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6347 mono_type_is_pointer (MonoType *type)
6349 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6350 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6351 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6352 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6353 (type->type == MONO_TYPE_FNPTR)));
6357 * mono_type_is_reference:
6358 * @type: the MonoType operated on
6360 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6363 mono_type_is_reference (MonoType *type)
6365 return (type && (((type->type == MONO_TYPE_STRING) ||
6366 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6367 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6368 ((type->type == MONO_TYPE_GENERICINST) &&
6369 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6373 * mono_signature_get_return_type:
6374 * @sig: the method signature inspected
6376 * Returns: the return type of the method signature @sig
6379 mono_signature_get_return_type (MonoMethodSignature *sig)
6385 * mono_signature_get_params:
6386 * @sig: the method signature inspected
6387 * #iter: pointer to an iterator
6389 * Iterates over the parameters for the method signature @sig.
6390 * A void* pointer must be initualized to #NULL to start the iteration
6391 * and it's address is passed to this function repeteadly until it returns
6394 * Returns: the next parameter type of the method signature @sig,
6395 * #NULL when finished.
6398 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6404 /* start from the first */
6405 if (sig->param_count) {
6406 *iter = &sig->params [0];
6407 return sig->params [0];
6415 if (type < &sig->params [sig->param_count]) {
6423 * mono_signature_get_param_count:
6424 * @sig: the method signature inspected
6426 * Returns: the number of parameters in the method signature @sig.
6429 mono_signature_get_param_count (MonoMethodSignature *sig)
6431 return sig->param_count;
6435 * mono_signature_get_call_conv:
6436 * @sig: the method signature inspected
6438 * Returns: the call convention of the method signature @sig.
6441 mono_signature_get_call_conv (MonoMethodSignature *sig)
6443 return sig->call_convention;
6447 * mono_signature_vararg_start:
6448 * @sig: the method signature inspected
6450 * Returns: the number of the first vararg parameter in the
6451 * method signature @sig. -1 if this is not a vararg signature.
6454 mono_signature_vararg_start (MonoMethodSignature *sig)
6456 return sig->sentinelpos;
6460 * mono_signature_is_instance:
6461 * @sig: the method signature inspected
6463 * Returns: #TRUE if this the method signature @sig has an implicit
6464 * first instance argument. #FALSE otherwise.
6467 mono_signature_is_instance (MonoMethodSignature *sig)
6469 return sig->hasthis;
6473 * mono_signature_param_is_out
6474 * @sig: the method signature inspected
6475 * @param_num: the 0-based index of the inspected parameter
6477 * Returns: #TRUE if the parameter is an out parameter, #FALSE
6481 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6483 g_assert (param_num >= 0 && param_num < sig->param_count);
6484 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6488 * mono_signature_explicit_this:
6489 * @sig: the method signature inspected
6491 * Returns: #TRUE if this the method signature @sig has an explicit
6492 * instance argument. #FALSE otherwise.
6495 mono_signature_explicit_this (MonoMethodSignature *sig)
6497 return sig->explicit_this;
6500 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6502 mono_aligned_addr_hash (gconstpointer ptr)
6504 return GPOINTER_TO_UINT (ptr) >> 3;
6508 * If @field belongs to an inflated generic class, return the corresponding field of the
6509 * generic type definition class.
6512 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6517 if (!field->parent->generic_class)
6520 gtd = field->parent->generic_class->container_class;
6521 offset = field - field->parent->fields;
6522 return gtd->fields + offset;
6526 * If @event belongs to an inflated generic class, return the corresponding event of the
6527 * generic type definition class.
6530 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6535 if (!event->parent->generic_class)
6538 gtd = event->parent->generic_class->container_class;
6539 offset = event - event->parent->ext->events;
6540 return gtd->ext->events + offset;
6544 * If @property belongs to an inflated generic class, return the corresponding property of the
6545 * generic type definition class.
6548 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6553 if (!property->parent->generic_class)
6556 gtd = property->parent->generic_class->container_class;
6557 offset = property - property->parent->ext->properties;
6558 return gtd->ext->properties + offset;
6562 mono_method_get_wrapper_cache (MonoMethod *method)
6564 if (method->is_inflated) {
6565 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
6566 return &imethod->owner->wrapper_caches;
6568 return &method->klass->image->wrapper_caches;