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_TABLE_IDX, /* Document */
380 MONO_MT_BLOB_IDX, /* SequencePoints */
383 #define LOCALSCOPE_SCHEMA_OFFSET METHODBODY_SCHEMA_OFFSET + 3
384 MONO_MT_TABLE_IDX, /* Method */
385 MONO_MT_TABLE_IDX, /* ImportScope */
386 MONO_MT_TABLE_IDX, /* VariableList */
387 MONO_MT_TABLE_IDX, /* ConstantList */
388 MONO_MT_UINT32, /* StartOffset */
389 MONO_MT_UINT32, /* Length */
392 #define LOCALVARIABLE_SCHEMA_OFFSET LOCALSCOPE_SCHEMA_OFFSET + 7
393 MONO_MT_UINT16, /* Attributes */
394 MONO_MT_UINT16, /* Index */
395 MONO_MT_STRING_IDX, /* Name */
398 #define NULL_SCHEMA_OFFSET LOCALVARIABLE_SCHEMA_OFFSET + 4
402 /* Must be the same order as MONO_TABLE_* */
403 const static unsigned char
404 table_description [] = {
405 MODULE_SCHEMA_OFFSET,
406 TYPEREF_SCHEMA_OFFSET,
407 TYPEDEF_SCHEMA_OFFSET,
408 FIELD_POINTER_SCHEMA_OFFSET,
410 METHOD_POINTER_SCHEMA_OFFSET,
411 METHOD_SCHEMA_OFFSET,
412 PARAM_POINTER_SCHEMA_OFFSET,
414 IFACEMAP_SCHEMA_OFFSET,
415 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
416 CONSTANT_SCHEMA_OFFSET,
417 CUSTOM_ATTR_SCHEMA_OFFSET,
418 FIELD_MARSHAL_SCHEMA_OFFSET,
419 DECL_SEC_SCHEMA_OFFSET,
420 CLASS_LAYOUT_SCHEMA_OFFSET,
421 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
422 STDALON_SIG_SCHEMA_OFFSET,
423 EVENTMAP_SCHEMA_OFFSET,
424 EVENT_POINTER_SCHEMA_OFFSET,
426 PROPERTY_MAP_SCHEMA_OFFSET,
427 PROPERTY_POINTER_SCHEMA_OFFSET,
428 PROPERTY_SCHEMA_OFFSET,
429 METHOD_SEMA_SCHEMA_OFFSET,
430 METHOD_IMPL_SCHEMA_OFFSET,
431 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
432 TYPESPEC_SCHEMA_OFFSET,
433 IMPLMAP_SCHEMA_OFFSET,
434 FIELD_RVA_SCHEMA_OFFSET,
437 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
438 ASSEMBLYPROC_SCHEMA_OFFSET,
439 ASSEMBLYOS_SCHEMA_OFFSET,
440 ASSEMBLYREF_SCHEMA_OFFSET,
441 ASSEMBLYREFPROC_SCHEMA_OFFSET,
442 ASSEMBLYREFOS_SCHEMA_OFFSET,
444 EXPORTED_TYPE_SCHEMA_OFFSET,
445 MANIFEST_SCHEMA_OFFSET,
446 NESTED_CLASS_SCHEMA_OFFSET,
447 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
448 METHOD_SPEC_SCHEMA_OFFSET,
449 GEN_CONSTRAINT_SCHEMA_OFFSET,
453 DOCUMENT_SCHEMA_OFFSET, /* 0x30 */
454 METHODBODY_SCHEMA_OFFSET,
455 LOCALSCOPE_SCHEMA_OFFSET,
456 LOCALVARIABLE_SCHEMA_OFFSET
459 #ifdef HAVE_ARRAY_ELEM_INIT
460 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
461 #define MSGSTRFIELD1(line) str##line
462 static const struct msgstr_t {
463 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
464 #include "mono/cil/tables.def"
467 #define TABLEDEF(a,b) b,
468 #include "mono/cil/tables.def"
471 static const gint16 tableidx [] = {
472 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
473 #include "mono/cil/tables.def"
478 #define TABLEDEF(a,b) b,
479 static const char* const
480 mono_tables_names [] = {
481 #include "mono/cil/tables.def"
488 * mono_meta_table_name:
489 * @table: table index
491 * Returns the name of the given ECMA metadata logical format table
492 * as described in ECMA 335, Partition II, Section 22.
494 * Returns: the name for the @table index
497 mono_meta_table_name (int table)
499 if ((table < 0) || (table > MONO_TABLE_LAST))
502 #ifdef HAVE_ARRAY_ELEM_INIT
503 return (const char*)&tablestr + tableidx [table];
505 return mono_tables_names [table];
509 /* The guy who wrote the spec for this should not be allowed near a
512 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
513 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
514 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
515 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
516 inverse of this mapping.
519 #define rtsize(meta,s,b) (((s) < (1 << (b)) ? 2 : 4))
520 #define idx_size(meta,tableidx) ((meta)->tables [(tableidx)].rows < 65536 ? 2 : 4)
522 /* Reference: Partition II - 23.2.6 */
524 * mono_metadata_compute_size:
525 * @meta: metadata context
526 * @tableindex: metadata table number
527 * @result_bitfield: pointer to guint32 where to store additional info
529 * mono_metadata_compute_size() computes the lenght in bytes of a single
530 * row in a metadata table. The size of each column is encoded in the
531 * @result_bitfield return value along with the number of columns in the table.
532 * the resulting bitfield should be handed to the mono_metadata_table_size()
533 * and mono_metadata_table_count() macros.
534 * This is a Mono runtime internal only function.
537 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
539 guint32 bitfield = 0;
540 int size = 0, field_size = 0;
543 const unsigned char *description = TableSchemas + table_description [tableindex];
545 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
548 field_size = 4; break;
551 field_size = 2; break;
554 field_size = 1; break;
556 case MONO_MT_BLOB_IDX:
557 field_size = meta->idx_blob_wide ? 4 : 2; break;
559 case MONO_MT_STRING_IDX:
560 field_size = meta->idx_string_wide ? 4 : 2; break;
562 case MONO_MT_GUID_IDX:
563 field_size = meta->idx_guid_wide ? 4 : 2; break;
565 case MONO_MT_TABLE_IDX:
566 /* Uhm, a table index can point to other tables besides the current one
567 * so, it's not correct to use the rowcount of the current table to
568 * get the size for this column - lupus
570 switch (tableindex) {
571 case MONO_TABLE_ASSEMBLYREFOS:
573 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
574 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
576 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
577 case MONO_TABLE_CLASSLAYOUT:
579 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
580 case MONO_TABLE_EVENTMAP:
581 g_assert (i == 0 || i == 1);
582 field_size = i ? idx_size (meta, MONO_TABLE_EVENT):
583 idx_size (meta, MONO_TABLE_TYPEDEF);
585 case MONO_TABLE_EVENT_POINTER:
587 field_size = idx_size (meta, MONO_TABLE_EVENT); break;
588 case MONO_TABLE_EXPORTEDTYPE:
590 /* the index is in another metadata file, so it must be 4 */
591 field_size = 4; break;
592 case MONO_TABLE_FIELDLAYOUT:
594 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
595 case MONO_TABLE_FIELDRVA:
597 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
598 case MONO_TABLE_FIELD_POINTER:
600 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
601 case MONO_TABLE_IMPLMAP:
603 field_size = idx_size (meta, MONO_TABLE_MODULEREF); break;
604 case MONO_TABLE_INTERFACEIMPL:
606 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
607 case MONO_TABLE_METHOD:
609 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
610 case MONO_TABLE_METHODIMPL:
612 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
613 case MONO_TABLE_METHODSEMANTICS:
615 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
616 case MONO_TABLE_METHOD_POINTER:
618 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
619 case MONO_TABLE_NESTEDCLASS:
620 g_assert (i == 0 || i == 1);
621 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
622 case MONO_TABLE_PARAM_POINTER:
624 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
625 case MONO_TABLE_PROPERTYMAP:
626 g_assert (i == 0 || i == 1);
627 field_size = i ? idx_size (meta, MONO_TABLE_PROPERTY):
628 idx_size (meta, MONO_TABLE_TYPEDEF);
630 case MONO_TABLE_PROPERTY_POINTER:
632 field_size = idx_size (meta, MONO_TABLE_PROPERTY); break;
633 case MONO_TABLE_TYPEDEF:
634 g_assert (i == 4 || i == 5);
635 field_size = i == 4 ? idx_size (meta, MONO_TABLE_FIELD):
636 idx_size (meta, MONO_TABLE_METHOD);
638 case MONO_TABLE_GENERICPARAM:
640 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
641 /*This is a coded token for 2 tables, so takes 1 bit */
642 field_size = rtsize (meta, n, 16 - MONO_TYPEORMETHOD_BITS);
644 case MONO_TABLE_GENERICPARAMCONSTRAINT:
646 field_size = idx_size (meta, MONO_TABLE_GENERICPARAM);
648 case MONO_TABLE_LOCALSCOPE:
651 // FIXME: This table is in another file
652 field_size = idx_size (meta, MONO_TABLE_METHOD);
655 field_size = idx_size (meta, MONO_TABLE_IMPORTSCOPE);
658 field_size = idx_size (meta, MONO_TABLE_LOCALVARIABLE);
661 field_size = idx_size (meta, MONO_TABLE_LOCALCONSTANT);
664 g_assert_not_reached ();
668 case MONO_TABLE_METHODBODY:
670 field_size = idx_size (meta, MONO_TABLE_DOCUMENT);
673 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
678 * HasConstant: ParamDef, FieldDef, Property
680 case MONO_MT_CONST_IDX:
681 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
682 meta->tables [MONO_TABLE_FIELD].rows);
683 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
685 /* 2 bits to encode tag */
686 field_size = rtsize (meta, n, 16-2);
690 * HasCustomAttribute: points to any table but
693 case MONO_MT_HASCAT_IDX:
695 * We believe that since the signature and
696 * permission are indexing the Blob heap,
697 * we should consider the blob size first
699 /* I'm not a believer - lupus
700 if (meta->idx_blob_wide){
705 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
706 meta->tables [MONO_TABLE_FIELD].rows);
707 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
708 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
709 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
710 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
711 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
712 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
713 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
714 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
715 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
716 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
717 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
718 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
719 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
720 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
721 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
722 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
723 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
725 /* 5 bits to encode */
726 field_size = rtsize (meta, n, 16-5);
730 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
731 * MemberRef and String.
733 case MONO_MT_CAT_IDX:
734 /* String is a heap, if it is wide, we know the size */
736 if (meta->idx_string_wide){
741 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
742 meta->tables [MONO_TABLE_TYPEDEF].rows);
743 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
744 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
746 /* 3 bits to encode */
747 field_size = rtsize (meta, n, 16-3);
751 * HasDeclSecurity: Typedef, MethodDef, Assembly
753 case MONO_MT_HASDEC_IDX:
754 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
755 meta->tables [MONO_TABLE_METHOD].rows);
756 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
758 /* 2 bits to encode */
759 field_size = rtsize (meta, n, 16-2);
763 * Implementation: File, AssemblyRef, ExportedType
765 case MONO_MT_IMPL_IDX:
766 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
767 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
768 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
770 /* 2 bits to encode tag */
771 field_size = rtsize (meta, n, 16-2);
775 * HasFieldMarshall: FieldDef, ParamDef
777 case MONO_MT_HFM_IDX:
778 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
779 meta->tables [MONO_TABLE_PARAM].rows);
781 /* 1 bit used to encode tag */
782 field_size = rtsize (meta, n, 16-1);
786 * MemberForwarded: FieldDef, MethodDef
789 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
790 meta->tables [MONO_TABLE_METHOD].rows);
792 /* 1 bit used to encode tag */
793 field_size = rtsize (meta, n, 16-1);
797 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
799 * It is TypeDef, _TypeRef_, TypeSpec, instead.
801 case MONO_MT_TDOR_IDX:
802 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
803 meta->tables [MONO_TABLE_TYPEREF].rows);
804 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
806 /* 2 bits to encode */
807 field_size = rtsize (meta, n, 16-2);
811 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
813 case MONO_MT_MRP_IDX:
814 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
815 meta->tables [MONO_TABLE_TYPEREF].rows);
816 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
817 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
818 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
820 /* 3 bits to encode */
821 field_size = rtsize (meta, n, 16 - 3);
825 * MethodDefOrRef: MethodDef, MemberRef
827 case MONO_MT_MDOR_IDX:
828 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
829 meta->tables [MONO_TABLE_MEMBERREF].rows);
831 /* 1 bit used to encode tag */
832 field_size = rtsize (meta, n, 16-1);
836 * HasSemantics: Property, Event
839 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
840 meta->tables [MONO_TABLE_EVENT].rows);
842 /* 1 bit used to encode tag */
843 field_size = rtsize (meta, n, 16-1);
847 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
850 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
851 meta->tables [MONO_TABLE_MODULEREF].rows);
852 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
853 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
855 /* 2 bits used to encode tag (ECMA spec claims 3) */
856 field_size = rtsize (meta, n, 16 - 2);
861 * encode field size as follows (we just need to
868 bitfield |= (field_size-1) << shift;
871 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
874 *result_bitfield = (i << 24) | bitfield;
879 * mono_metadata_compute_table_bases:
880 * @meta: metadata context to compute table values
882 * Computes the table bases for the metadata structure.
883 * This is an internal function used by the image loader code.
886 mono_metadata_compute_table_bases (MonoImage *meta)
889 const char *base = meta->tables_base;
891 for (i = 0; i < MONO_TABLE_NUM; i++) {
892 MonoTableInfo *table = &meta->tables [i];
893 if (table->rows == 0)
896 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
898 base += table->rows * table->row_size;
903 * mono_metadata_locate:
904 * @meta: metadata context
905 * @table: table code.
906 * @idx: index of element to retrieve from @table.
908 * Returns: a pointer to the @idx element in the metadata table
909 * whose code is @table.
912 mono_metadata_locate (MonoImage *meta, int table, int idx)
914 /* idx == 0 refers always to NULL */
915 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
917 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
921 * mono_metadata_locate_token:
922 * @meta: metadata context
923 * @token: metadata token
925 * Returns: a pointer to the data in the metadata represented by the
929 mono_metadata_locate_token (MonoImage *meta, guint32 token)
931 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
935 * mono_metadata_string_heap:
936 * @meta: metadata context
937 * @index: index into the string heap.
939 * Returns: an in-memory pointer to the @index in the string heap.
942 mono_metadata_string_heap (MonoImage *meta, guint32 index)
944 g_assert (index < meta->heap_strings.size);
945 g_return_val_if_fail (index < meta->heap_strings.size, "");
946 return meta->heap_strings.data + index;
950 * mono_metadata_user_string:
951 * @meta: metadata context
952 * @index: index into the user string heap.
954 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
957 mono_metadata_user_string (MonoImage *meta, guint32 index)
959 g_assert (index < meta->heap_us.size);
960 g_return_val_if_fail (index < meta->heap_us.size, "");
961 return meta->heap_us.data + index;
965 * mono_metadata_blob_heap:
966 * @meta: metadata context
967 * @index: index into the blob.
969 * Returns: an in-memory pointer to the @index in the Blob heap.
972 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
974 g_assert (index < meta->heap_blob.size);
975 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
976 return meta->heap_blob.data + index;
980 * mono_metadata_guid_heap:
981 * @meta: metadata context
982 * @index: index into the guid heap.
984 * Returns: an in-memory pointer to the @index in the guid heap.
987 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
990 index *= 16; /* adjust for guid size and 1-based index */
991 g_return_val_if_fail (index < meta->heap_guid.size, "");
992 return meta->heap_guid.data + index;
995 static const unsigned char *
996 dword_align (const unsigned char *ptr)
998 #if SIZEOF_VOID_P == 8
999 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
1001 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
1006 * mono_metadata_decode_row:
1007 * @t: table to extract information from.
1008 * @idx: index in table.
1009 * @res: array of @res_size cols to store the results in
1011 * This decompresses the metadata element @idx in table @t
1012 * into the guint32 @res array that has res_size elements
1015 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
1017 guint32 bitfield = t->size_bitfield;
1018 int i, count = mono_metadata_table_count (bitfield);
1021 g_assert (idx < t->rows);
1022 g_assert (idx >= 0);
1023 data = t->base + idx * t->row_size;
1025 g_assert (res_size == count);
1027 for (i = 0; i < count; i++) {
1028 int n = mono_metadata_table_size (bitfield, i);
1032 res [i] = *data; break;
1034 res [i] = read16 (data); break;
1036 res [i] = read32 (data); break;
1038 g_assert_not_reached ();
1045 * mono_metadata_decode_row_col:
1046 * @t: table to extract information from.
1047 * @idx: index for row in table.
1048 * @col: column in the row.
1050 * This function returns the value of column @col from the @idx
1051 * row in the table @t.
1054 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
1056 guint32 bitfield = t->size_bitfield;
1058 register const char *data;
1061 g_assert (idx < t->rows);
1062 g_assert (col < mono_metadata_table_count (bitfield));
1063 data = t->base + idx * t->row_size;
1065 n = mono_metadata_table_size (bitfield, 0);
1066 for (i = 0; i < col; ++i) {
1068 n = mono_metadata_table_size (bitfield, i + 1);
1074 return read16 (data);
1076 return read32 (data);
1078 g_assert_not_reached ();
1084 * mono_metadata_decode_blob_size:
1085 * @ptr: pointer to a blob object
1086 * @rptr: the new position of the pointer
1088 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1090 * Returns: the size of the blob object
1093 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1095 const unsigned char *ptr = (const unsigned char *)xptr;
1098 if ((*ptr & 0x80) == 0){
1099 size = ptr [0] & 0x7f;
1101 } else if ((*ptr & 0x40) == 0){
1102 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1105 size = ((ptr [0] & 0x1f) << 24) +
1117 * mono_metadata_decode_value:
1118 * @ptr: pointer to decode from
1119 * @rptr: the new position of the pointer
1121 * This routine decompresses 32-bit values as specified in the "Blob and
1122 * Signature" section (22.2)
1124 * Returns: the decoded value
1127 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1129 const unsigned char *ptr = (const unsigned char *) _ptr;
1130 unsigned char b = *ptr;
1133 if ((b & 0x80) == 0){
1136 } else if ((b & 0x40) == 0){
1137 len = ((b & 0x3f) << 8 | ptr [1]);
1140 len = ((b & 0x1f) << 24) |
1153 * mono_metadata_decode_signed_value:
1154 * @ptr: pointer to decode from
1155 * @rptr: the new position of the pointer
1157 * This routine decompresses 32-bit signed values
1158 * (not specified in the spec)
1160 * Returns: the decoded value
1163 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1165 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1166 gint32 ival = uval >> 1;
1169 /* ival is a truncated 2's complement negative number. */
1171 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1174 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1175 return ival - 0x2000;
1176 if (ival < 0x10000000)
1177 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1178 return ival - 0x10000000;
1179 g_assert (ival < 0x20000000);
1180 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1181 return ival - 0x20000000;
1185 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1186 * using the *Ptr tables in uncompressed metadata, if they are available.
1188 * FIXME: The caller is not forced to call this function, which is error-prone, since
1189 * forgetting to call it would only show up as a bug on uncompressed metadata.
1192 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1194 if (!image->uncompressed_metadata)
1198 case MONO_TABLE_METHOD:
1199 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1200 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1203 case MONO_TABLE_FIELD:
1204 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1205 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1208 case MONO_TABLE_EVENT:
1209 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1210 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1213 case MONO_TABLE_PROPERTY:
1214 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1215 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1218 case MONO_TABLE_PARAM:
1219 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1220 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1229 * mono_metadata_decode_table_row:
1231 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1232 * uncompressed metadata into account, so it should be used to access the
1233 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1234 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1237 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1239 if (image->uncompressed_metadata)
1240 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1242 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1246 * mono_metadata_decode_table_row_col:
1248 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1249 * uncompressed metadata into account, so it should be used to access the
1250 * Method, Field, Param and Event tables.
1252 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1254 if (image->uncompressed_metadata)
1255 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1257 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1261 * mono_metadata_parse_typedef_or_ref:
1262 * @m: a metadata context.
1263 * @ptr: a pointer to an encoded TypedefOrRef in @m
1264 * @rptr: pointer updated to match the end of the decoded stream
1266 * Returns: a token valid in the @m metadata decoded from
1267 * the compressed representation.
1270 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1273 token = mono_metadata_decode_value (ptr, &ptr);
1276 return mono_metadata_token_from_dor (token);
1280 * mono_metadata_parse_custom_mod:
1281 * @m: a metadata context.
1282 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1283 * @ptr: a pointer to (possibly) the start of a custom modifier list
1284 * @rptr: pointer updated to match the end of the decoded stream
1286 * Checks if @ptr points to a type custom modifier compressed representation.
1288 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1291 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1293 MonoCustomMod local;
1294 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1297 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1298 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1305 * mono_metadata_parse_array_internal:
1306 * @m: a metadata context.
1307 * @transient: whenever to allocate data from the heap
1308 * @ptr: a pointer to an encoded array description.
1309 * @rptr: pointer updated to match the end of the decoded stream
1311 * Decodes the compressed array description found in the metadata @m at @ptr.
1313 * Returns: a #MonoArrayType structure describing the array type
1314 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1315 * on the value of @transient.
1317 * LOCKING: Acquires the loader lock
1319 static MonoArrayType *
1320 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1321 gboolean transient, const char *ptr, const char **rptr)
1324 MonoArrayType *array;
1327 array = transient ? g_malloc0 (sizeof (MonoArrayType)) : mono_image_alloc0 (m, sizeof (MonoArrayType));
1328 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1331 array->eklass = mono_class_from_mono_type (etype);
1332 array->rank = mono_metadata_decode_value (ptr, &ptr);
1334 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1335 if (array->numsizes)
1336 array->sizes = transient ? g_malloc0 (sizeof (int) * array->numsizes) : mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1337 for (i = 0; i < array->numsizes; ++i)
1338 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1340 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1341 if (array->numlobounds)
1342 array->lobounds = transient ? g_malloc0 (sizeof (int) * array->numlobounds) : mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1343 for (i = 0; i < array->numlobounds; ++i)
1344 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1352 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1353 const char *ptr, const char **rptr)
1355 return mono_metadata_parse_array_internal (m, container, FALSE, ptr, rptr);
1359 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1361 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1365 * mono_metadata_free_array:
1366 * @array: array description
1368 * Frees the array description returned from mono_metadata_parse_array().
1371 mono_metadata_free_array (MonoArrayType *array)
1373 g_free (array->sizes);
1374 g_free (array->lobounds);
1379 * need to add common field and param attributes combinations:
1382 * public static literal
1385 * private static literal
1387 static const MonoType
1389 /* data, attrs, type, nmods, byref, pinned */
1390 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1391 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1392 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1393 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1394 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1395 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1396 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1397 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1398 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1399 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1400 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1401 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1402 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1403 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1404 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1405 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1406 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1407 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1408 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1409 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1410 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1411 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1412 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1413 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1414 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1415 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1416 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1417 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1418 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1419 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1420 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1421 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1422 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1423 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1426 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1428 static GHashTable *type_cache = NULL;
1429 static int next_generic_inst_id = 0;
1431 /* Protected by image_sets_mutex */
1432 static MonoImageSet *mscorlib_image_set;
1433 /* Protected by image_sets_mutex */
1434 static GPtrArray *image_sets;
1435 static mono_mutex_t image_sets_mutex;
1437 static guint mono_generic_class_hash (gconstpointer data);
1440 * MonoTypes with modifies are never cached, so we never check or use that field.
1443 mono_type_hash (gconstpointer data)
1445 const MonoType *type = (const MonoType *) data;
1446 if (type->type == MONO_TYPE_GENERICINST)
1447 return mono_generic_class_hash (type->data.generic_class);
1449 return type->type | (type->byref << 8) | (type->attrs << 9);
1453 mono_type_equal (gconstpointer ka, gconstpointer kb)
1455 const MonoType *a = (const MonoType *) ka;
1456 const MonoType *b = (const MonoType *) kb;
1458 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1460 /* need other checks */
1465 mono_metadata_generic_inst_hash (gconstpointer data)
1467 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1471 for (i = 0; i < ginst->type_argc; ++i) {
1473 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1476 return hash ^ (ginst->is_open << 8);
1480 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1484 #ifndef MONO_SMALL_CONFIG
1485 if (a->id && b->id) {
1488 if (!signature_only)
1493 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1495 for (i = 0; i < a->type_argc; ++i) {
1496 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1503 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1505 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1506 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1508 return mono_generic_inst_equal_full (a, b, FALSE);
1512 mono_generic_class_hash (gconstpointer data)
1514 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1515 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1518 hash += gclass->is_tb_open;
1519 hash += mono_metadata_generic_context_hash (&gclass->context);
1525 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1527 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1528 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1530 return _mono_metadata_generic_class_equal (a, b, FALSE);
1534 * mono_metadata_init:
1536 * Initialize the global variables of this module.
1537 * This is a Mono runtime internal function.
1540 mono_metadata_init (void)
1544 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1546 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1547 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1549 mono_mutex_init_recursive (&image_sets_mutex);
1553 * mono_metadata_cleanup:
1555 * Free all resources used by this module.
1556 * This is a Mono runtime internal function.
1559 mono_metadata_cleanup (void)
1561 g_hash_table_destroy (type_cache);
1563 g_ptr_array_free (image_sets, TRUE);
1565 mono_mutex_destroy (&image_sets_mutex);
1569 * mono_metadata_parse_type:
1570 * @m: metadata context
1571 * @mode: king of type that may be found at @ptr
1572 * @opt_attrs: optional attributes to store in the returned type
1573 * @ptr: pointer to the type representation
1574 * @rptr: pointer updated to match the end of the decoded stream
1575 * @transient: whenever to allocate the result from the heap or from a mempool
1577 * Decode a compressed type description found at @ptr in @m.
1578 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1579 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1580 * This function can be used to decode type descriptions in method signatures,
1581 * field signatures, locals signatures etc.
1583 * To parse a generic type, `generic_container' points to the current class'es
1584 * (the `generic_container' field in the MonoClass) or the current generic method's
1585 * (stored in image->property_hash) generic container.
1586 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1587 * this MonoGenericContainer.
1589 * LOCKING: Acquires the loader lock.
1591 * Returns: a #MonoType structure representing the decoded type.
1594 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1595 short opt_attrs, gboolean transient, const char *ptr, const char **rptr)
1597 MonoType *type, *cached;
1599 gboolean byref = FALSE;
1600 gboolean pinned = FALSE;
1601 const char *tmp_ptr;
1606 * According to the spec, custom modifiers should come before the byref
1607 * flag, but the IL produced by ilasm from the following signature:
1608 * object modopt(...) &
1609 * starts with a byref flag, followed by the modifiers. (bug #49802)
1610 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1611 * it would be better to treat byref as real type constructor instead of
1613 * Also, pinned should come before anything else, but some MSV++ produced
1614 * assemblies violate this (#bug 61990).
1617 /* Count the modifiers first */
1622 case MONO_TYPE_PINNED:
1623 case MONO_TYPE_BYREF:
1626 case MONO_TYPE_CMOD_REQD:
1627 case MONO_TYPE_CMOD_OPT:
1629 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1639 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1640 type = transient ? g_malloc0 (size) : mono_image_alloc0 (m, size);
1641 type->num_mods = count;
1643 g_warning ("got more than 64 modifiers in type");
1646 memset (type, 0, MONO_SIZEOF_TYPE);
1649 /* Parse pinned, byref and custom modifiers */
1654 case MONO_TYPE_PINNED:
1658 case MONO_TYPE_BYREF:
1662 case MONO_TYPE_CMOD_REQD:
1663 case MONO_TYPE_CMOD_OPT:
1664 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1672 type->attrs = opt_attrs;
1673 type->byref = byref;
1674 type->pinned = pinned ? 1 : 0;
1676 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr)) {
1683 if (!type->num_mods && !transient) {
1684 /* no need to free type here, because it is on the stack */
1685 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1686 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1688 /* Consider the case:
1690 class Foo<T> { class Bar {} }
1691 class Test : Foo<Test>.Bar {}
1693 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1694 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1696 We ensure that the MonoClass is in a state that we can canonicalize to:
1698 klass->byval_arg.data.klass == klass
1699 klass->this_arg.data.klass == klass
1701 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1703 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1704 of a MonoClass which currently holds the loader lock. 'type' is local.
1706 if (ret->data.klass == type->data.klass) {
1710 /* No need to use locking since nobody is modifying the hash table */
1711 if ((cached = g_hash_table_lookup (type_cache, type))) {
1716 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1718 if (type == &stype) {
1719 type = transient ? g_malloc (MONO_SIZEOF_TYPE) : mono_image_alloc (m, MONO_SIZEOF_TYPE);
1720 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1726 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1727 short opt_attrs, const char *ptr, const char **rptr)
1729 return mono_metadata_parse_type_internal (m, container, mode, opt_attrs, FALSE, ptr, rptr);
1733 * LOCKING: Acquires the loader lock.
1736 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1737 const char *ptr, const char **rptr)
1739 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1743 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1745 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1746 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1747 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1749 if (def < methodt->rows)
1750 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1752 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1754 for (i = param_index; i < lastp; ++i) {
1755 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1764 * mono_metadata_get_param_attrs:
1766 * @m The image to loader parameter attributes from
1767 * @def method def token (one based)
1768 * @param_count number of params to decode including the return value
1770 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1771 * returned memory needs to be freed by the caller. If all the param attributes are
1772 * 0, then NULL is returned.
1775 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1777 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1778 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1779 guint32 cols [MONO_PARAM_SIZE];
1780 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1783 if (def < methodt->rows)
1784 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1786 lastp = paramt->rows + 1;
1788 for (i = param_index; i < lastp; ++i) {
1789 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1790 if (cols [MONO_PARAM_FLAGS]) {
1792 pattrs = g_new0 (int, param_count);
1793 /* at runtime we just ignore this kind of malformed file:
1794 * the verifier can signal the error to the user
1796 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1798 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1807 * mono_metadata_parse_signature:
1808 * @image: metadata context
1809 * @toke: metadata token
1811 * Decode a method signature stored in the STANDALONESIG table
1813 * Returns: a MonoMethodSignature describing the signature.
1815 MonoMethodSignature*
1816 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1819 MonoMethodSignature *ret;
1820 MonoTableInfo *tables = image->tables;
1821 guint32 idx = mono_metadata_token_index (token);
1825 if (image_is_dynamic (image))
1826 return mono_lookup_dynamic_token (image, token, NULL);
1828 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1830 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1832 ptr = mono_metadata_blob_heap (image, sig);
1833 mono_metadata_decode_blob_size (ptr, &ptr);
1835 ret = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, &error);
1836 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1841 * mono_metadata_signature_alloc:
1842 * @image: metadata context
1843 * @nparmas: number of parameters in the signature
1845 * Allocate a MonoMethodSignature structure with the specified number of params.
1846 * The return type and the params types need to be filled later.
1847 * This is a Mono runtime internal function.
1849 * LOCKING: Assumes the loader lock is held.
1851 * Returns: the new MonoMethodSignature structure.
1853 MonoMethodSignature*
1854 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1856 MonoMethodSignature *sig;
1858 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1859 sig->param_count = nparams;
1860 sig->sentinelpos = -1;
1865 static MonoMethodSignature*
1866 mono_metadata_signature_dup_internal_with_padding (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig, size_t padding)
1868 int sigsize, sig_header_size;
1869 MonoMethodSignature *ret;
1870 sigsize = sig_header_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *) + padding;
1872 sigsize += MONO_SIZEOF_TYPE;
1875 ret = mono_image_alloc (image, sigsize);
1877 ret = mono_mempool_alloc (mp, sigsize);
1879 ret = g_malloc (sigsize);
1882 memcpy (ret, sig, sig_header_size - padding);
1884 // Copy return value because of ownership semantics.
1886 // Danger! Do not alter padding use without changing the dup_add_this below
1887 intptr_t end_of_header = (intptr_t)( (char*)(ret) + sig_header_size);
1888 ret->ret = (MonoType *)end_of_header;
1889 memcpy (ret->ret, sig->ret, MONO_SIZEOF_TYPE);
1895 static MonoMethodSignature*
1896 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1898 return mono_metadata_signature_dup_internal_with_padding (image, mp, sig, 0);
1901 * signature_dup_add_this:
1903 * Make a copy of @sig, adding an explicit this argument.
1905 MonoMethodSignature*
1906 mono_metadata_signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
1908 MonoMethodSignature *ret;
1909 ret = mono_metadata_signature_dup_internal_with_padding (image, NULL, sig, sizeof (MonoType *));
1911 ret->param_count = sig->param_count + 1;
1912 ret->hasthis = FALSE;
1914 for (int i = sig->param_count - 1; i >= 0; i --)
1915 ret->params [i + 1] = sig->params [i];
1916 ret->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
1918 for (int i = sig->param_count - 1; i >= 0; i --)
1919 g_assert(ret->params [i + 1]->type == sig->params [i]->type && ret->params [i+1]->type != MONO_TYPE_END);
1920 g_assert (ret->ret->type == sig->ret->type && ret->ret->type != MONO_TYPE_END);
1927 MonoMethodSignature*
1928 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1930 MonoMethodSignature *ret = mono_metadata_signature_dup_internal (image, NULL, sig);
1932 for (int i = 0 ; i < sig->param_count; i ++)
1933 g_assert(ret->params [i]->type == sig->params [i]->type);
1934 g_assert (ret->ret->type == sig->ret->type);
1939 /*The mempool is accessed without synchronization*/
1940 MonoMethodSignature*
1941 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1943 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1947 * mono_metadata_signature_dup:
1948 * @sig: method signature
1950 * Duplicate an existing MonoMethodSignature so it can be modified.
1951 * This is a Mono runtime internal function.
1953 * Returns: the new MonoMethodSignature structure.
1955 MonoMethodSignature*
1956 mono_metadata_signature_dup (MonoMethodSignature *sig)
1958 return mono_metadata_signature_dup_full (NULL, sig);
1962 * mono_metadata_signature_size:
1964 * Return the amount of memory allocated to SIG.
1967 mono_metadata_signature_size (MonoMethodSignature *sig)
1969 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1973 * mono_metadata_parse_method_signature:
1974 * @m: metadata context
1975 * @generic_container: generics container
1976 * @def: the MethodDef index or 0 for Ref signatures.
1977 * @ptr: pointer to the signature metadata representation
1978 * @rptr: pointer updated to match the end of the decoded stream
1980 * Decode a method signature stored at @ptr.
1981 * This is a Mono runtime internal function.
1983 * LOCKING: Assumes the loader lock is held.
1985 * Returns: a MonoMethodSignature describing the signature.
1987 MonoMethodSignature *
1988 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1989 int def, const char *ptr, const char **rptr, MonoError *error)
1991 MonoMethodSignature *method;
1992 int i, *pattrs = NULL;
1993 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1994 guint32 gen_param_count = 0;
1995 gboolean is_open = FALSE;
1997 mono_error_init (error);
2000 gen_param_count = 1;
2005 call_convention = *ptr & 0x0F;
2007 if (gen_param_count)
2008 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
2009 param_count = mono_metadata_decode_value (ptr, &ptr);
2012 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 */
2014 method = mono_metadata_signature_alloc (m, param_count);
2015 method->hasthis = hasthis;
2016 method->explicit_this = explicit_this;
2017 method->call_convention = call_convention;
2018 method->generic_param_count = gen_param_count;
2020 if (call_convention != 0xa) {
2021 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
2023 mono_metadata_free_method_signature (method);
2025 if (mono_loader_get_last_error ())
2026 mono_error_set_from_loader_error (error);
2028 mono_error_set_bad_image (error, m, "Could not parse return type signature");
2031 is_open = mono_class_is_open_constructed_type (method->ret);
2034 for (i = 0; i < method->param_count; ++i) {
2035 if (*ptr == MONO_TYPE_SENTINEL) {
2036 if (method->call_convention != MONO_CALL_VARARG || def) {
2037 mono_loader_assert_no_error ();
2038 mono_error_set_bad_image (error, m, "Found sentinel for methoddef or no vararg");
2042 if (method->sentinelpos >= 0) {
2043 mono_loader_assert_no_error ();
2044 mono_error_set_bad_image (error, m, "Found sentinel twice in the same signature.");
2048 method->sentinelpos = i;
2051 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
2052 if (!method->params [i]) {
2053 if (mono_loader_get_last_error ())
2054 mono_error_set_from_loader_error (error);
2056 mono_error_set_bad_image (error, m, "Could not parse type argument %d on method signature", i);
2057 mono_metadata_free_method_signature (method);
2062 is_open = mono_class_is_open_constructed_type (method->params [i]);
2065 /* The sentinel could be missing if the caller does not pass any additional arguments */
2066 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
2067 method->sentinelpos = method->param_count;
2069 method->has_type_parameters = is_open;
2071 if (def && (method->call_convention == MONO_CALL_VARARG))
2072 method->sentinelpos = method->param_count;
2079 * Add signature to a cache and increase ref count...
2082 mono_loader_assert_no_error ();
2087 * mono_metadata_parse_method_signature:
2088 * @m: metadata context
2089 * @def: the MethodDef index or 0 for Ref signatures.
2090 * @ptr: pointer to the signature metadata representation
2091 * @rptr: pointer updated to match the end of the decoded stream
2093 * Decode a method signature stored at @ptr.
2094 * This is a Mono runtime internal function.
2096 * LOCKING: Assumes the loader lock is held.
2098 * Returns: a MonoMethodSignature describing the signature.
2100 MonoMethodSignature *
2101 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
2104 MonoMethodSignature *ret;
2105 ret = mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr, &error);
2107 mono_loader_set_error_from_mono_error (&error);
2108 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
2114 * mono_metadata_free_method_signature:
2115 * @sig: signature to destroy
2117 * Free the memory allocated in the signature @sig.
2118 * This method needs to be robust and work also on partially-built
2119 * signatures, so it does extra checks.
2122 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2124 /* Everything is allocated from mempools */
2128 mono_metadata_free_type (sig->ret);
2129 for (i = 0; i < sig->param_count; ++i) {
2130 if (sig->params [i])
2131 mono_metadata_free_type (sig->params [i]);
2137 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2141 /* Allocated in inflate_generic_signature () */
2143 mono_metadata_free_type (sig->ret);
2144 for (i = 0; i < sig->param_count; ++i) {
2145 if (sig->params [i])
2146 mono_metadata_free_type (sig->params [i]);
2152 inflated_method_equal (gconstpointer a, gconstpointer b)
2154 const MonoMethodInflated *ma = a;
2155 const MonoMethodInflated *mb = b;
2156 if (ma->declaring != mb->declaring)
2158 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2162 inflated_method_hash (gconstpointer a)
2164 const MonoMethodInflated *ma = a;
2165 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring));
2169 inflated_signature_equal (gconstpointer a, gconstpointer b)
2171 const MonoInflatedMethodSignature *sig1 = a;
2172 const MonoInflatedMethodSignature *sig2 = b;
2174 /* sig->sig is assumed to be canonized */
2175 if (sig1->sig != sig2->sig)
2177 /* The generic instances are canonized */
2178 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2182 inflated_signature_hash (gconstpointer a)
2184 const MonoInflatedMethodSignature *sig = a;
2186 /* sig->sig is assumed to be canonized */
2187 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2191 dump_ginst (MonoGenericInst *ginst)
2196 g_print ("Ginst: <");
2197 for (i = 0; i < ginst->type_argc; ++i) {
2200 name = mono_type_get_name (ginst->type_argv [i]);
2201 g_print ("%s", name);
2207 static gboolean type_in_image (MonoType *type, MonoImage *image);
2210 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2212 gpointer iter = NULL;
2215 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2216 if (type_in_image (p, image))
2219 return type_in_image (mono_signature_get_return_type (sig), image);
2223 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2227 for (i = 0; i < ginst->type_argc; ++i) {
2228 if (type_in_image (ginst->type_argv [i], image))
2236 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2238 return gclass->container_class->image == image ||
2239 ginst_in_image (gclass->context.class_inst, image);
2243 type_in_image (MonoType *type, MonoImage *image)
2246 switch (type->type) {
2247 case MONO_TYPE_GENERICINST:
2248 return gclass_in_image (type->data.generic_class, image);
2250 type = type->data.type;
2252 case MONO_TYPE_SZARRAY:
2253 type = &type->data.klass->byval_arg;
2255 case MONO_TYPE_ARRAY:
2256 type = &type->data.array->eklass->byval_arg;
2258 case MONO_TYPE_FNPTR:
2259 return signature_in_image (type->data.method, image);
2260 case MONO_TYPE_VAR: {
2261 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2263 g_assert (!container->is_method);
2265 * FIXME: The following check is here solely
2266 * for monodis, which uses the internal
2268 * mono_metadata_load_generic_params(). The
2269 * caller of that function needs to fill in
2270 * owner->klass or owner->method of the
2271 * returned struct, but monodis doesn't do
2272 * that. The image unloading depends on that,
2273 * however, so a crash results without this
2276 if (!container->owner.klass)
2277 return container->image == image;
2278 return container->owner.klass->image == image;
2280 return type->data.generic_param->image == image;
2283 case MONO_TYPE_MVAR: {
2284 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2285 if (type->data.generic_param->image == image)
2288 g_assert (container->is_method);
2289 if (!container->owner.method)
2290 /* RefEmit created generic param whose method is not finished */
2291 return container->image == image;
2292 return container->owner.method->klass->image == image;
2294 return type->data.generic_param->image == image;
2298 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2299 return image == mono_class_from_mono_type (type)->image;
2304 image_sets_lock (void)
2306 mono_mutex_lock (&image_sets_mutex);
2310 image_sets_unlock (void)
2312 mono_mutex_unlock (&image_sets_mutex);
2318 * Return a MonoImageSet representing the set of images in IMAGES.
2320 static MonoImageSet*
2321 get_image_set (MonoImage **images, int nimages)
2328 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2329 return mscorlib_image_set;
2331 /* Happens with empty generic instances */
2333 return mscorlib_image_set;
2338 image_sets = g_ptr_array_new ();
2340 if (images [0] == mono_defaults.corlib && nimages > 1)
2341 l = images [1]->image_sets;
2343 l = images [0]->image_sets;
2346 for (; l; l = l->next) {
2349 if (set->nimages == nimages) {
2350 for (j = 0; j < nimages; ++j) {
2351 for (k = 0; k < nimages; ++k)
2352 if (set->images [k] == images [j])
2366 set = g_new0 (MonoImageSet, 1);
2367 set->nimages = nimages;
2368 set->images = g_new0 (MonoImage*, nimages);
2369 mono_mutex_init_recursive (&set->lock);
2370 for (i = 0; i < nimages; ++i)
2371 set->images [i] = images [i];
2372 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2373 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2374 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2375 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2377 for (i = 0; i < nimages; ++i)
2378 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2380 g_ptr_array_add (image_sets, set);
2383 if (nimages == 1 && images [0] == mono_defaults.corlib) {
2384 mono_memory_barrier ();
2385 mscorlib_image_set = set;
2388 image_sets_unlock ();
2394 delete_image_set (MonoImageSet *set)
2398 g_hash_table_destroy (set->gclass_cache);
2399 g_hash_table_destroy (set->ginst_cache);
2400 g_hash_table_destroy (set->gmethod_cache);
2401 g_hash_table_destroy (set->gsignature_cache);
2403 mono_wrapper_caches_free (&set->wrapper_caches);
2407 for (i = 0; i < set->nimages; ++i)
2408 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2410 g_ptr_array_remove (image_sets, set);
2412 image_sets_unlock ();
2415 mono_mempool_destroy (set->mempool);
2416 g_free (set->images);
2417 mono_mutex_destroy (&set->lock);
2422 mono_image_set_lock (MonoImageSet *set)
2424 mono_mutex_lock (&set->lock);
2428 mono_image_set_unlock (MonoImageSet *set)
2430 mono_mutex_unlock (&set->lock);
2434 mono_image_set_alloc (MonoImageSet *set, guint size)
2438 mono_image_set_lock (set);
2440 set->mempool = mono_mempool_new_size (1024);
2441 res = mono_mempool_alloc (set->mempool, size);
2442 mono_image_set_unlock (set);
2448 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2452 mono_image_set_lock (set);
2454 set->mempool = mono_mempool_new_size (1024);
2455 res = mono_mempool_alloc0 (set->mempool, size);
2456 mono_image_set_unlock (set);
2462 mono_image_set_strdup (MonoImageSet *set, const char *s)
2466 mono_image_set_lock (set);
2468 set->mempool = mono_mempool_new_size (1024);
2469 res = mono_mempool_strdup (set->mempool, s);
2470 mono_image_set_unlock (set);
2476 * Structure used by the collect_..._images functions to store the image list.
2479 MonoImage *image_buf [64];
2481 int nimages, images_len;
2485 collect_data_init (CollectData *data)
2487 data->images = data->image_buf;
2488 data->images_len = 64;
2493 collect_data_free (CollectData *data)
2495 if (data->images != data->image_buf)
2496 g_free (data->images);
2500 enlarge_data (CollectData *data)
2502 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2503 MonoImage **d = g_new (MonoImage *, new_len);
2506 g_assert_not_reached ();
2507 memcpy (d, data->images, data->images_len);
2508 if (data->images != data->image_buf)
2509 g_free (data->images);
2511 data->images_len = new_len;
2515 add_image (MonoImage *image, CollectData *data)
2519 /* The arrays are small, so use a linear search instead of a hash table */
2520 for (i = 0; i < data->nimages; ++i)
2521 if (data->images [i] == image)
2524 if (data->nimages == data->images_len)
2525 enlarge_data (data);
2527 data->images [data->nimages ++] = image;
2531 collect_type_images (MonoType *type, CollectData *data);
2534 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2538 for (i = 0; i < ginst->type_argc; ++i) {
2539 collect_type_images (ginst->type_argv [i], data);
2544 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2546 add_image (gclass->container_class->image, data);
2547 if (gclass->context.class_inst)
2548 collect_ginst_images (gclass->context.class_inst, data);
2552 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2554 gpointer iter = NULL;
2557 collect_type_images (mono_signature_get_return_type (sig), data);
2558 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2559 collect_type_images (p, data);
2563 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2565 collect_signature_images (sig->sig, data);
2566 if (sig->context.class_inst)
2567 collect_ginst_images (sig->context.class_inst, data);
2568 if (sig->context.method_inst)
2569 collect_ginst_images (sig->context.method_inst, data);
2573 collect_method_images (MonoMethodInflated *method, CollectData *data)
2575 MonoMethod *m = method->declaring;
2577 add_image (method->declaring->klass->image, data);
2578 if (method->context.class_inst)
2579 collect_ginst_images (method->context.class_inst, data);
2580 if (method->context.method_inst)
2581 collect_ginst_images (method->context.method_inst, data);
2583 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2585 if (image_is_dynamic (m->klass->image))
2586 collect_signature_images (mono_method_signature (m), data);
2590 collect_type_images (MonoType *type, CollectData *data)
2593 switch (type->type) {
2594 case MONO_TYPE_GENERICINST:
2595 collect_gclass_images (type->data.generic_class, data);
2598 type = type->data.type;
2600 case MONO_TYPE_SZARRAY:
2601 type = &type->data.klass->byval_arg;
2603 case MONO_TYPE_ARRAY:
2604 type = &type->data.array->eklass->byval_arg;
2606 case MONO_TYPE_FNPTR:
2607 //return signature_in_image (type->data.method, image);
2608 g_assert_not_reached ();
2609 case MONO_TYPE_VAR: {
2610 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2612 g_assert (!container->is_method);
2614 * FIXME: The following check is here solely
2615 * for monodis, which uses the internal
2617 * mono_metadata_load_generic_params(). The
2618 * caller of that function needs to fill in
2619 * owner->klass or owner->method of the
2620 * returned struct, but monodis doesn't do
2621 * that. The image unloading depends on that,
2622 * however, so a crash results without this
2625 if (!container->owner.klass)
2626 add_image (container->image, data);
2628 add_image (container->owner.klass->image, data);
2630 add_image (type->data.generic_param->image, data);
2634 case MONO_TYPE_MVAR: {
2635 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2636 if (type->data.generic_param->image)
2637 add_image (type->data.generic_param->image, data);
2639 if (!container->owner.method) {
2640 /* RefEmit created generic param whose method is not finished */
2641 add_image (container->image, data);
2643 g_assert (container->is_method);
2644 add_image (container->owner.method->klass->image, data);
2647 add_image (type->data.generic_param->image, data);
2651 case MONO_TYPE_CLASS:
2652 case MONO_TYPE_VALUETYPE:
2653 add_image (mono_class_from_mono_type (type)->image, data);
2656 add_image (mono_defaults.corlib, data);
2663 } CleanForImageUserData;
2666 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2668 MonoGenericClass *gclass = key;
2669 CleanForImageUserData *user_data = data;
2671 g_assert (gclass_in_image (gclass, user_data->image));
2673 user_data->list = g_slist_prepend (user_data->list, gclass);
2678 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2680 MonoGenericInst *ginst = key;
2681 CleanForImageUserData *user_data = data;
2683 // This doesn't work during corlib compilation
2684 //g_assert (ginst_in_image (ginst, user_data->image));
2686 user_data->list = g_slist_prepend (user_data->list, ginst);
2691 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2693 MonoImage *image = data;
2694 MonoMethodInflated *method = key;
2697 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2698 g_assert (method->declaring->klass->image == image ||
2699 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2700 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2706 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2708 MonoImage *image = data;
2709 MonoInflatedMethodSignature *sig = key;
2711 return signature_in_image (sig->sig, image) ||
2712 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2713 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2717 check_gmethod (gpointer key, gpointer value, gpointer data)
2719 MonoMethodInflated *method = key;
2720 MonoImage *image = data;
2722 if (method->context.class_inst)
2723 g_assert (!ginst_in_image (method->context.class_inst, image));
2724 if (method->context.method_inst)
2725 g_assert (!ginst_in_image (method->context.method_inst, image));
2726 if (((MonoMethod*)method)->signature)
2727 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2733 * Run a consistency check on the image set data structures.
2735 static G_GNUC_UNUSED void
2736 check_image_sets (MonoImage *image)
2739 GSList *l = image->image_sets;
2744 for (i = 0; i < image_sets->len; ++i) {
2745 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2747 if (!g_slist_find (l, set)) {
2748 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2754 mono_metadata_clean_for_image (MonoImage *image)
2756 CleanForImageUserData ginst_data, gclass_data;
2757 GSList *l, *set_list;
2759 //check_image_sets (image);
2762 * The data structures could reference each other so we delete them in two phases.
2763 * This is required because of the hashing functions in gclass/ginst_cache.
2765 ginst_data.image = gclass_data.image = image;
2766 ginst_data.list = gclass_data.list = NULL;
2768 /* Collect the items to delete */
2769 /* delete_image_set () modifies the lists so make a copy */
2770 for (l = image->image_sets; l; l = l->next) {
2771 MonoImageSet *set = l->data;
2773 mono_image_set_lock (set);
2774 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2775 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2776 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2777 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2778 mono_image_set_unlock (set);
2781 /* Delete the removed items */
2782 for (l = ginst_data.list; l; l = l->next)
2783 free_generic_inst (l->data);
2784 for (l = gclass_data.list; l; l = l->next)
2785 free_generic_class (l->data);
2786 g_slist_free (ginst_data.list);
2787 g_slist_free (gclass_data.list);
2788 /* delete_image_set () modifies the lists so make a copy */
2789 set_list = g_slist_copy (image->image_sets);
2790 for (l = set_list; l; l = l->next) {
2791 MonoImageSet *set = l->data;
2793 delete_image_set (set);
2795 g_slist_free (set_list);
2799 free_inflated_method (MonoMethodInflated *imethod)
2802 MonoMethod *method = (MonoMethod*)imethod;
2804 if (method->signature)
2805 mono_metadata_free_inflated_signature (method->signature);
2807 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))) {
2808 MonoMethodHeader *header = imethod->header;
2811 /* Allocated in inflate_generic_header () */
2812 for (i = 0; i < header->num_locals; ++i)
2813 mono_metadata_free_type (header->locals [i]);
2814 g_free (header->clauses);
2823 free_generic_inst (MonoGenericInst *ginst)
2827 /* The ginst itself is allocated from the image set mempool */
2828 for (i = 0; i < ginst->type_argc; ++i)
2829 mono_metadata_free_type (ginst->type_argv [i]);
2833 free_generic_class (MonoGenericClass *gclass)
2835 /* The gclass itself is allocated from the image set mempool */
2836 if (gclass->is_dynamic)
2837 mono_reflection_free_dynamic_generic_class (gclass);
2838 if (gclass->cached_class && gclass->cached_class->interface_id)
2839 mono_unload_interface_id (gclass->cached_class);
2843 free_inflated_signature (MonoInflatedMethodSignature *sig)
2845 mono_metadata_free_inflated_signature (sig->sig);
2850 * mono_metadata_get_inflated_signature:
2852 * Given an inflated signature and a generic context, return a canonical copy of the
2853 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2855 MonoMethodSignature *
2856 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2858 MonoInflatedMethodSignature helper;
2859 MonoInflatedMethodSignature *res;
2864 helper.context.class_inst = context->class_inst;
2865 helper.context.method_inst = context->method_inst;
2867 collect_data_init (&data);
2869 collect_inflated_signature_images (&helper, &data);
2871 set = get_image_set (data.images, data.nimages);
2873 collect_data_free (&data);
2875 mono_image_set_lock (set);
2877 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2879 res = g_new0 (MonoInflatedMethodSignature, 1);
2881 res->context.class_inst = context->class_inst;
2882 res->context.method_inst = context->method_inst;
2883 g_hash_table_insert (set->gsignature_cache, res, res);
2886 mono_image_set_unlock (set);
2892 mono_metadata_get_image_set_for_method (MonoMethodInflated *method)
2895 CollectData image_set_data;
2897 collect_data_init (&image_set_data);
2898 collect_method_images (method, &image_set_data);
2899 set = get_image_set (image_set_data.images, image_set_data.nimages);
2900 collect_data_free (&image_set_data);
2906 * mono_metadata_get_generic_inst:
2908 * Given a list of types, return a MonoGenericInst that represents that list.
2909 * The returned MonoGenericInst has its own copy of the list of types. The list
2910 * passed in the argument can be freed, modified or disposed of.
2914 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2916 MonoGenericInst *ginst;
2919 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2923 for (i = 0; i < type_argc; ++i)
2924 if (mono_class_is_open_constructed_type (type_argv [i]))
2926 is_open = (i < type_argc);
2928 ginst = g_alloca (size);
2929 memset (ginst, 0, sizeof (MonoGenericInst));
2930 ginst->is_open = is_open;
2931 ginst->type_argc = type_argc;
2932 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2934 collect_data_init (&data);
2936 collect_ginst_images (ginst, &data);
2938 set = get_image_set (data.images, data.nimages);
2940 collect_data_free (&data);
2942 mono_image_set_lock (set);
2944 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2946 ginst = mono_image_set_alloc0 (set, size);
2947 #ifndef MONO_SMALL_CONFIG
2948 ginst->id = ++next_generic_inst_id;
2950 ginst->is_open = is_open;
2951 ginst->type_argc = type_argc;
2953 for (i = 0; i < type_argc; ++i)
2954 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2956 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2959 mono_image_set_unlock (set);
2964 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2966 MonoGenericContainer *container = container_class->generic_container;
2968 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2970 return inst == container->context.class_inst;
2974 * mono_metadata_lookup_generic_class:
2976 * Returns a MonoGenericClass with the given properties.
2980 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2982 MonoGenericClass *gclass;
2983 MonoGenericClass helper;
2984 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2988 helper.container_class = container_class;
2989 helper.context.class_inst = inst;
2990 helper.context.method_inst = NULL;
2991 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2992 helper.is_tb_open = is_tb_open;
2993 helper.cached_class = NULL;
2995 collect_data_init (&data);
2997 collect_gclass_images (&helper, &data);
2999 set = get_image_set (data.images, data.nimages);
3001 collect_data_free (&data);
3003 mono_image_set_lock (set);
3005 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
3007 /* A tripwire just to keep us honest */
3008 g_assert (!helper.cached_class);
3011 mono_image_set_unlock (set);
3016 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
3017 gclass = &dgclass->generic_class;
3018 gclass->is_dynamic = 1;
3020 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
3023 gclass->is_tb_open = is_tb_open;
3024 gclass->container_class = container_class;
3025 gclass->context.class_inst = inst;
3026 gclass->context.method_inst = NULL;
3027 gclass->owner = set;
3028 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
3029 gclass->cached_class = container_class;
3031 g_hash_table_insert (set->gclass_cache, gclass, gclass);
3033 mono_image_set_unlock (set);
3039 * mono_metadata_inflate_generic_inst:
3041 * Instantiate the generic instance @ginst with the context @context.
3042 * Check @error for success.
3046 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
3048 MonoType **type_argv;
3049 MonoGenericInst *nginst = NULL;
3052 mono_error_init (error);
3054 if (!ginst->is_open)
3057 type_argv = g_new0 (MonoType*, ginst->type_argc);
3059 for (i = 0; i < ginst->type_argc; i++) {
3060 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
3061 if (!mono_error_ok (error))
3066 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
3069 for (i = 0; i < count; i++)
3070 mono_metadata_free_type (type_argv [i]);
3077 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
3078 int count, const char *ptr, const char **rptr)
3080 MonoType **type_argv;
3081 MonoGenericInst *ginst;
3084 type_argv = g_new0 (MonoType*, count);
3086 for (i = 0; i < count; i++) {
3087 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
3098 ginst = mono_metadata_get_generic_inst (count, type_argv);
3106 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3107 const char *ptr, const char **rptr)
3109 MonoGenericInst *inst;
3114 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
3118 gklass = mono_class_from_mono_type (gtype);
3119 if (!gklass->generic_container)
3122 count = mono_metadata_decode_value (ptr, &ptr);
3123 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
3130 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3136 * @gc: The generic container to normalize
3137 * @type: The kind of generic parameters the resulting generic-container should contain
3140 static MonoGenericContainer *
3141 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3143 gboolean is_var = (type == MONO_TYPE_VAR);
3147 g_assert (is_var || type == MONO_TYPE_MVAR);
3150 if (gc->is_method || gc->parent)
3152 * The current MonoGenericContainer is a generic method -> its `parent'
3153 * points to the containing class'es container.
3162 * mono_metadata_parse_generic_param:
3163 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3164 * see mono_metadata_parse_type_full() for details.
3165 * Internal routine to parse a generic type parameter.
3166 * LOCKING: Acquires the loader lock
3168 static MonoGenericParam *
3169 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3170 MonoTypeEnum type, const char *ptr, const char **rptr)
3172 int index = mono_metadata_decode_value (ptr, &ptr);
3176 generic_container = select_container (generic_container, type);
3177 if (!generic_container) {
3178 /* Create dummy MonoGenericParam */
3179 MonoGenericParam *param;
3181 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3188 if (index >= generic_container->type_argc)
3191 return mono_generic_container_get_param (generic_container, index);
3195 * mono_metadata_get_shared_type:
3197 * Return a shared instance of TYPE, if available, NULL otherwise.
3198 * Shared MonoType instances help save memory. Their contents should not be modified
3199 * by the caller. They do not need to be freed as their lifetime is bound by either
3200 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3201 * instance they are embedded in. If they are freed, they should be freed using
3202 * mono_metadata_free_type () instead of g_free ().
3205 mono_metadata_get_shared_type (MonoType *type)
3209 /* No need to use locking since nobody is modifying the hash table */
3210 if ((cached = g_hash_table_lookup (type_cache, type)))
3213 switch (type->type){
3214 case MONO_TYPE_CLASS:
3215 case MONO_TYPE_VALUETYPE:
3216 if (type == &type->data.klass->byval_arg)
3218 if (type == &type->data.klass->this_arg)
3229 compare_type_literals (int class_type, int type_type)
3231 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3232 * See mcs/test/gtest-440. and #650936.
3233 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3237 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3240 if (class_type == type_type)
3243 if (type_type == MONO_TYPE_CLASS)
3244 return class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT;
3246 g_assert (type_type == MONO_TYPE_VALUETYPE);
3247 switch (class_type) {
3248 case MONO_TYPE_BOOLEAN:
3249 case MONO_TYPE_CHAR:
3262 case MONO_TYPE_CLASS:
3270 * do_mono_metadata_parse_type:
3271 * @type: MonoType to be filled in with the return value
3273 * @generic_context: generics_context
3274 * @transient: whenever to allocate data from the heap
3275 * @ptr: pointer to the encoded type
3276 * @rptr: pointer where the end of the encoded type is saved
3278 * Internal routine used to "fill" the contents of @type from an
3279 * allocated pointer. This is done this way to avoid doing too
3280 * many mini-allocations (particularly for the MonoFieldType which
3281 * most of the time is just a MonoType, but sometimes might be augmented).
3283 * This routine is used by mono_metadata_parse_type and
3284 * mono_metadata_parse_field_type
3286 * This extracts a Type as specified in Partition II (22.2.12)
3288 * Returns: FALSE if the type could not be loaded
3291 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3292 gboolean transient, const char *ptr, const char **rptr)
3295 type->type = mono_metadata_decode_value (ptr, &ptr);
3297 switch (type->type){
3298 case MONO_TYPE_VOID:
3299 case MONO_TYPE_BOOLEAN:
3300 case MONO_TYPE_CHAR:
3313 case MONO_TYPE_STRING:
3314 case MONO_TYPE_OBJECT:
3315 case MONO_TYPE_TYPEDBYREF:
3317 case MONO_TYPE_VALUETYPE:
3318 case MONO_TYPE_CLASS: {
3322 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3323 class = mono_class_get_checked (m, token, &error);
3324 type->data.klass = class;
3326 mono_loader_set_error_from_mono_error (&error);
3327 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3330 if (!compare_type_literals (class->byval_arg.type, type->type))
3334 case MONO_TYPE_SZARRAY: {
3335 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
3338 type->data.klass = mono_class_from_mono_type (etype);
3339 if (!type->data.klass)
3344 type->data.type = mono_metadata_parse_type_internal (m, container, MONO_PARSE_MOD_TYPE, 0, transient, ptr, &ptr);
3345 if (!type->data.type)
3348 case MONO_TYPE_FNPTR: {
3350 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr, &error);
3351 if (!type->data.method) {
3352 mono_loader_set_error_from_mono_error (&error);
3353 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3358 case MONO_TYPE_ARRAY:
3359 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr);
3360 if (!type->data.array)
3363 case MONO_TYPE_MVAR:
3364 if (container && !container->is_method)
3367 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
3368 if (!type->data.generic_param)
3371 case MONO_TYPE_GENERICINST:
3372 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
3375 g_warning ("type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3385 * mono_metadata_free_type:
3386 * @type: type to free
3388 * Free the memory allocated for type @type which is allocated on the heap.
3391 mono_metadata_free_type (MonoType *type)
3393 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3396 switch (type->type){
3397 case MONO_TYPE_OBJECT:
3398 case MONO_TYPE_STRING:
3399 if (!type->data.klass)
3402 case MONO_TYPE_CLASS:
3403 case MONO_TYPE_VALUETYPE:
3404 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3408 mono_metadata_free_type (type->data.type);
3410 case MONO_TYPE_FNPTR:
3411 mono_metadata_free_method_signature (type->data.method);
3413 case MONO_TYPE_ARRAY:
3414 mono_metadata_free_array (type->data.array);
3425 hex_dump (const char *buffer, int base, int count)
3427 int show_header = 1;
3435 for (i = 0; i < count; i++){
3438 printf ("\n0x%08x: ", (unsigned char) base + i);
3440 printf ("%02x ", (unsigned char) (buffer [i]));
3447 * @ptr: Points to the beginning of the Section Data (25.3)
3449 static MonoExceptionClause*
3450 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3452 unsigned char sect_data_flags;
3454 guint32 sect_data_len;
3455 MonoExceptionClause* clauses = NULL;
3458 /* align on 32-bit boundary */
3459 ptr = dword_align (ptr);
3460 sect_data_flags = *ptr;
3463 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3465 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3468 sect_data_len = ptr [0];
3472 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3473 const unsigned char *p = dword_align (ptr);
3475 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3476 /* we could just store a pointer if we don't need to byteswap */
3477 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3478 for (i = 0; i < *num_clauses; ++i) {
3479 MonoExceptionClause *ec = &clauses [i];
3482 ec->flags = read32 (p);
3483 ec->try_offset = read32 (p + 4);
3484 ec->try_len = read32 (p + 8);
3485 ec->handler_offset = read32 (p + 12);
3486 ec->handler_len = read32 (p + 16);
3487 tof_value = read32 (p + 20);
3490 ec->flags = read16 (p);
3491 ec->try_offset = read16 (p + 2);
3492 ec->try_len = *(p + 4);
3493 ec->handler_offset = read16 (p + 5);
3494 ec->handler_len = *(p + 7);
3495 tof_value = read32 (p + 8);
3498 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3499 ec->data.filter_offset = tof_value;
3500 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3501 ec->data.catch_class = NULL;
3504 ec->data.catch_class = mono_class_get_checked (m, tof_value, &error);
3505 if (!mono_error_ok (&error)) {
3506 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3512 ec->data.catch_class = NULL;
3514 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3518 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3519 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3526 * mono_method_get_header_summary:
3527 * @method: The method to get the header.
3528 * @summary: Where to store the header
3531 * Returns: true if the header was properly decoded.
3534 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3540 unsigned char flags, format;
3543 /*Only the GMD has a pointer to the metadata.*/
3544 while (method->is_inflated)
3545 method = ((MonoMethodInflated*)method)->declaring;
3547 summary->code_size = 0;
3548 summary->has_clauses = FALSE;
3550 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3551 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))
3554 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3555 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3558 summary->code_size = header->code_size;
3559 summary->has_clauses = header->num_clauses > 0;
3564 idx = mono_metadata_token_index (method->token);
3565 img = method->klass->image;
3566 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3568 /*We must run the verifier since we'll be decoding it.*/
3569 if (!mono_verifier_verify_method_header (img, rva, NULL))
3572 ptr = mono_image_rva_map (img, rva);
3575 flags = *(const unsigned char *)ptr;
3576 format = flags & METHOD_HEADER_FORMAT_MASK;
3579 case METHOD_HEADER_TINY_FORMAT:
3581 summary->code_size = flags >> 2;
3583 case METHOD_HEADER_FAT_FORMAT:
3584 fat_flags = read16 (ptr);
3586 summary->code_size = read32 (ptr);
3587 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3588 summary->has_clauses = TRUE;
3597 * mono_metadata_parse_mh_full:
3598 * @m: metadata context
3599 * @generic_context: generics context
3600 * @ptr: pointer to the method header.
3602 * Decode the method header at @ptr, including pointer to the IL code,
3603 * info about local variables and optional exception tables.
3604 * This is a Mono runtime internal function.
3606 * LOCKING: Acquires the loader lock.
3608 * Returns: a transient MonoMethodHeader allocated from the heap.
3611 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3613 MonoMethodHeader *mh = NULL;
3614 unsigned char flags = *(const unsigned char *) ptr;
3615 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3617 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3618 const unsigned char *code;
3619 MonoExceptionClause* clauses = NULL;
3620 int num_clauses = 0;
3621 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3622 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3624 g_return_val_if_fail (ptr != NULL, NULL);
3627 case METHOD_HEADER_TINY_FORMAT:
3628 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3631 mh->is_transient = TRUE;
3632 local_var_sig_tok = 0;
3633 mh->code_size = flags >> 2;
3634 mh->code = (unsigned char*)ptr;
3636 case METHOD_HEADER_FAT_FORMAT:
3637 fat_flags = read16 (ptr);
3639 max_stack = read16 (ptr);
3641 code_size = read32 (ptr);
3643 local_var_sig_tok = read32 (ptr);
3646 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3651 code = (unsigned char*)ptr;
3653 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3657 * There are more sections
3659 ptr = (char*)code + code_size;
3665 if (local_var_sig_tok) {
3666 int idx = (local_var_sig_tok & 0xffffff)-1;
3667 if (idx >= t->rows || idx < 0)
3669 mono_metadata_decode_row (t, idx, cols, 1);
3671 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3674 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3675 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3676 if (local_var_sig_tok) {
3677 const char *locals_ptr;
3680 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3681 mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3682 if (*locals_ptr != 0x07)
3683 g_warning ("wrong signature for locals blob");
3685 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3686 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3687 mh->num_locals = len;
3688 for (i = 0; i < len; ++i) {
3689 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3690 MONO_PARSE_LOCAL, 0, TRUE, locals_ptr, &locals_ptr);
3691 if (!mh->locals [i])
3695 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3698 mh->code_size = code_size;
3699 mh->max_stack = max_stack;
3700 mh->is_transient = TRUE;
3701 mh->init_locals = init_locals;
3703 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3704 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3706 mh->clauses = clausesp;
3707 mh->num_clauses = num_clauses;
3718 * mono_metadata_parse_mh:
3719 * @generic_context: generics context
3720 * @ptr: pointer to the method header.
3722 * Decode the method header at @ptr, including pointer to the IL code,
3723 * info about local variables and optional exception tables.
3725 * Returns: a transient MonoMethodHeader allocated from the heap.
3728 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3730 return mono_metadata_parse_mh_full (m, NULL, ptr);
3734 * mono_metadata_free_mh:
3735 * @mh: a method header
3737 * Free the memory allocated for the method header.
3740 mono_metadata_free_mh (MonoMethodHeader *mh)
3744 /* If it is not transient it means it's part of a wrapper method,
3745 * or a SRE-generated method, so the lifetime in that case is
3746 * dictated by the method's own lifetime
3748 if (mh->is_transient) {
3749 for (i = 0; i < mh->num_locals; ++i)
3750 mono_metadata_free_type (mh->locals [i]);
3756 * mono_method_header_get_code:
3757 * @header: a MonoMethodHeader pointer
3758 * @code_size: memory location for returning the code size
3759 * @max_stack: memory location for returning the max stack
3761 * Method header accessor to retreive info about the IL code properties:
3762 * a pointer to the IL code itself, the size of the code and the max number
3763 * of stack slots used by the code.
3765 * Returns: pointer to the IL code represented by the method header.
3767 const unsigned char*
3768 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3771 *code_size = header->code_size;
3773 *max_stack = header->max_stack;
3774 return header->code;
3778 * mono_method_header_get_locals:
3779 * @header: a MonoMethodHeader pointer
3780 * @num_locals: memory location for returning the number of local variables
3781 * @init_locals: memory location for returning the init_locals flag
3783 * Method header accessor to retreive info about the local variables:
3784 * an array of local types, the number of locals and whether the locals
3785 * are supposed to be initialized to 0 on method entry
3787 * Returns: pointer to an array of types of the local variables
3790 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3793 *num_locals = header->num_locals;
3795 *init_locals = header->init_locals;
3796 return header->locals;
3800 * mono_method_header_get_num_clauses:
3801 * @header: a MonoMethodHeader pointer
3803 * Method header accessor to retreive the number of exception clauses.
3805 * Returns: the number of exception clauses present
3808 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3810 return header->num_clauses;
3814 * mono_method_header_get_clauses:
3815 * @header: a MonoMethodHeader pointer
3816 * @method: MonoMethod the header belongs to
3817 * @iter: pointer to a iterator
3818 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3820 * Get the info about the exception clauses in the method. Set *iter to NULL to
3821 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3822 * At each iteration, the structure pointed to by clause if filled with the
3823 * exception clause information.
3825 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3829 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3831 MonoExceptionClause *sc;
3832 /* later we'll be able to use this interface to parse the clause info on demand,
3833 * without allocating anything.
3835 if (!iter || !header->num_clauses)
3838 *iter = sc = header->clauses;
3844 if (sc < header->clauses + header->num_clauses) {
3853 * mono_metadata_parse_field_type:
3854 * @m: metadata context to extract information from
3855 * @ptr: pointer to the field signature
3856 * @rptr: pointer updated to match the end of the decoded stream
3858 * Parses the field signature, and returns the type information for it.
3860 * Returns: The MonoType that was extracted from @ptr.
3863 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3865 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3869 * mono_metadata_parse_param:
3870 * @m: metadata context to extract information from
3871 * @ptr: pointer to the param signature
3872 * @rptr: pointer updated to match the end of the decoded stream
3874 * Parses the param signature, and returns the type information for it.
3876 * Returns: The MonoType that was extracted from @ptr.
3879 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3881 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3885 * mono_metadata_token_from_dor:
3886 * @dor_token: A TypeDefOrRef coded index
3888 * dor_token is a TypeDefOrRef coded index: it contains either
3889 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3890 * bits contain an index into the table.
3892 * Returns: an expanded token
3895 mono_metadata_token_from_dor (guint32 dor_index)
3899 table = dor_index & 0x03;
3900 idx = dor_index >> 2;
3903 case 0: /* TypeDef */
3904 return MONO_TOKEN_TYPE_DEF | idx;
3905 case 1: /* TypeRef */
3906 return MONO_TOKEN_TYPE_REF | idx;
3907 case 2: /* TypeSpec */
3908 return MONO_TOKEN_TYPE_SPEC | idx;
3910 g_assert_not_reached ();
3917 * We use this to pass context information to the row locator
3920 int idx; /* The index that we are trying to locate */
3921 int col_idx; /* The index in the row where idx may be stored */
3922 MonoTableInfo *t; /* pointer to the table */
3927 * How the row locator works.
3932 * ___|___------> _______
3935 * A column in the rows of table A references an index in table B.
3936 * For example A may be the TYPEDEF table and B the METHODDEF table.
3938 * Given an index in table B we want to get the row in table A
3939 * where the column n references our index in B.
3941 * In the locator_t structure:
3943 * col_idx is the column number
3944 * index is the index in table B
3945 * result will be the index in table A
3948 * Table A Table B column (in table A)
3949 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3950 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3951 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3952 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3953 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3955 * Note that we still don't support encoded indexes.
3959 typedef_locator (const void *a, const void *b)
3961 locator_t *loc = (locator_t *) a;
3962 const char *bb = (const char *) b;
3963 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3964 guint32 col, col_next;
3966 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3972 * Need to check that the next row is valid.
3974 if (typedef_index + 1 < loc->t->rows) {
3975 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3976 if (loc->idx >= col_next)
3979 if (col == col_next)
3983 loc->result = typedef_index;
3989 table_locator (const void *a, const void *b)
3991 locator_t *loc = (locator_t *) a;
3992 const char *bb = (const char *) b;
3993 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
3996 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
3998 if (loc->idx == col) {
3999 loc->result = table_index;
4009 declsec_locator (const void *a, const void *b)
4011 locator_t *loc = (locator_t *) a;
4012 const char *bb = (const char *) b;
4013 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4016 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4018 if (loc->idx == col) {
4019 loc->result = table_index;
4031 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
4032 * which contains IDX.
4035 search_ptr_table (MonoImage *image, int table, int idx)
4037 MonoTableInfo *ptrdef = &image->tables [table];
4040 /* Use a linear search to find our index in the table */
4041 for (i = 0; i < ptrdef->rows; i ++)
4042 /* All the Ptr tables have the same structure */
4043 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
4046 if (i < ptrdef->rows)
4053 * mono_metadata_typedef_from_field:
4054 * @meta: metadata context
4055 * @index: FieldDef token
4057 * Returns: the 1-based index into the TypeDef table of the type that
4058 * declared the field described by @index, or 0 if not found.
4061 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
4063 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4069 loc.idx = mono_metadata_token_index (index);
4070 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
4073 if (meta->uncompressed_metadata)
4074 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4076 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4079 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4080 return loc.result + 1;
4084 * mono_metadata_typedef_from_method:
4085 * @meta: metadata context
4086 * @index: MethodDef token
4088 * Returns: the 1-based index into the TypeDef table of the type that
4089 * declared the method described by @index. 0 if not found.
4092 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
4094 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4100 loc.idx = mono_metadata_token_index (index);
4101 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
4104 if (meta->uncompressed_metadata)
4105 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
4107 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4110 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4111 return loc.result + 1;
4115 * mono_metadata_interfaces_from_typedef_full:
4116 * @meta: metadata context
4117 * @index: typedef token
4118 * @interfaces: Out parameter used to store the interface array
4119 * @count: Out parameter used to store the number of interfaces
4120 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
4121 * @context: The generic context
4123 * The array of interfaces that the @index typedef token implements is returned in
4124 * @interfaces. The number of elements in the array is returned in @count.
4127 * Returns: TRUE on success, FALSE on failure.
4130 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context, MonoError *error)
4132 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
4135 guint32 cols [MONO_INTERFACEIMPL_SIZE];
4141 mono_error_init (error);
4146 loc.idx = mono_metadata_token_index (index);
4147 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
4150 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4155 * We may end up in the middle of the rows...
4158 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4164 while (pos < tdef->rows) {
4165 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4166 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4171 if (heap_alloc_result)
4172 result = g_new0 (MonoClass*, pos - start);
4174 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4177 while (pos < tdef->rows) {
4180 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4181 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4183 iface = mono_class_get_and_inflate_typespec_checked (
4184 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context, error);
4187 result [pos - start] = iface;
4190 *count = pos - start;
4191 *interfaces = result;
4196 * @meta: metadata context
4197 * @index: typedef token
4198 * @count: Out parameter used to store the number of interfaces
4200 * The array of interfaces that the @index typedef token implements is returned in
4201 * @interfaces. The number of elements in the array is returned in @count. The returned
4202 * array is g_malloc'd and the caller must free it.
4204 * LOCKING: Acquires the loader lock .
4206 * Returns: the interface array on success, NULL on failure.
4210 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4213 MonoClass **interfaces = NULL;
4216 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL, &error);
4217 g_assert (mono_error_ok (&error)); /* FIXME dont swallow the error */
4225 * mono_metadata_nested_in_typedef:
4226 * @meta: metadata context
4227 * @index: typedef token
4229 * Returns: the 1-based index into the TypeDef table of the type
4230 * where the type described by @index is nested.
4231 * Returns 0 if @index describes a non-nested type.
4234 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4236 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4242 loc.idx = mono_metadata_token_index (index);
4243 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4246 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4249 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4250 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4254 * mono_metadata_nesting_typedef:
4255 * @meta: metadata context
4256 * @index: typedef token
4258 * Returns: the 1-based index into the TypeDef table of the first type
4259 * that is nested inside the type described by @index. The search starts at
4260 * @start_index. returns 0 if no such type is found.
4263 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4265 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4267 guint32 class_index = mono_metadata_token_index (index);
4272 start = start_index;
4274 while (start <= tdef->rows) {
4275 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4281 if (start > tdef->rows)
4288 * mono_metadata_packing_from_typedef:
4289 * @meta: metadata context
4290 * @index: token representing a type
4292 * Returns: the info stored in the ClassLAyout table for the given typedef token
4293 * into the @packing and @size pointers.
4294 * Returns 0 if the info is not found.
4297 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4299 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4301 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4306 loc.idx = mono_metadata_token_index (index);
4307 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4310 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4313 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4315 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4317 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4319 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4320 return loc.result + 1;
4324 * mono_metadata_custom_attrs_from_index:
4325 * @meta: metadata context
4326 * @index: token representing the parent
4328 * Returns: the 1-based index into the CustomAttribute table of the first
4329 * attribute which belongs to the metadata object described by @index.
4330 * Returns 0 if no such attribute is found.
4333 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4335 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4342 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4345 /* FIXME: Index translation */
4347 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4350 /* Find the first entry by searching backwards */
4351 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4354 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4355 return loc.result + 1;
4359 * mono_metadata_declsec_from_index:
4360 * @meta: metadata context
4361 * @index: token representing the parent
4363 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4364 * attribute which belongs to the metadata object described by @index.
4365 * Returns -1 if no such attribute is found.
4368 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4370 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4377 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4380 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4383 /* Find the first entry by searching backwards */
4384 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4391 * mono_metadata_localscope_from_methoddef:
4392 * @meta: metadata context
4393 * @index: methoddef index
4395 * Returns: the 1-based index into the LocalScope table of the first
4396 * scope which belongs to the method described by @index.
4397 * Returns 0 if no such row is found.
4400 mono_metadata_localscope_from_methoddef (MonoImage *meta, guint32 index)
4402 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_LOCALSCOPE];
4409 loc.col_idx = MONO_LOCALSCOPE_METHOD;
4412 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4415 /* Find the first entry by searching backwards */
4416 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_LOCALSCOPE_METHOD) == index))
4419 return loc.result + 1;
4424 mono_backtrace (int limit)
4429 backtrace (array, limit);
4430 names = backtrace_symbols (array, limit);
4431 for (i =0; i < limit; ++i) {
4432 g_print ("\t%s\n", names [i]);
4438 static int i8_align;
4441 * mono_type_set_alignment:
4443 * Set the alignment used by runtime to layout fields etc. of type TYPE to ALIGN.
4444 * This should only be used in AOT mode since the resulting layout will not match the
4448 mono_type_set_alignment (MonoTypeEnum type, int align)
4450 /* Support only a few types whose alignment is abi dependent */
4456 g_assert_not_reached ();
4463 * @t: the type to return the size of
4465 * Returns: the number of bytes required to hold an instance of this
4469 mono_type_size (MonoType *t, int *align)
4471 MonoTypeEnum simple_type;
4478 *align = MONO_ABI_ALIGNOF (gpointer);
4479 return sizeof (gpointer);
4482 simple_type = t->type;
4484 switch (simple_type) {
4485 case MONO_TYPE_VOID:
4488 case MONO_TYPE_BOOLEAN:
4489 *align = MONO_ABI_ALIGNOF (gint8);
4493 *align = MONO_ABI_ALIGNOF (gint8);
4495 case MONO_TYPE_CHAR:
4498 *align = MONO_ABI_ALIGNOF (gint16);
4502 *align = MONO_ABI_ALIGNOF (gint32);
4505 *align = MONO_ABI_ALIGNOF (float);
4509 *align = MONO_ABI_ALIGNOF (gint64);
4512 *align = MONO_ABI_ALIGNOF (double);
4516 *align = MONO_ABI_ALIGNOF (gpointer);
4517 return sizeof (gpointer);
4518 case MONO_TYPE_STRING:
4519 *align = MONO_ABI_ALIGNOF (gpointer);
4520 return sizeof (gpointer);
4521 case MONO_TYPE_OBJECT:
4522 *align = MONO_ABI_ALIGNOF (gpointer);
4523 return sizeof (gpointer);
4524 case MONO_TYPE_VALUETYPE: {
4525 if (t->data.klass->enumtype)
4526 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4528 return mono_class_value_size (t->data.klass, (guint32*)align);
4530 case MONO_TYPE_CLASS:
4531 case MONO_TYPE_SZARRAY:
4533 case MONO_TYPE_FNPTR:
4534 case MONO_TYPE_ARRAY:
4535 *align = MONO_ABI_ALIGNOF (gpointer);
4536 return sizeof (gpointer);
4537 case MONO_TYPE_TYPEDBYREF:
4538 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4539 case MONO_TYPE_GENERICINST: {
4540 MonoGenericClass *gclass = t->data.generic_class;
4541 MonoClass *container_class = gclass->container_class;
4543 // g_assert (!gclass->inst->is_open);
4545 if (container_class->valuetype) {
4546 if (container_class->enumtype)
4547 return mono_type_size (mono_class_enum_basetype (container_class), align);
4549 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4551 *align = MONO_ABI_ALIGNOF (gpointer);
4552 return sizeof (gpointer);
4556 case MONO_TYPE_MVAR:
4557 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4558 *align = MONO_ABI_ALIGNOF (gpointer);
4559 return sizeof (gpointer);
4561 /* The gparam can only match types given by gshared_constraint */
4562 return mono_type_size (t->data.generic_param->gshared_constraint, align);
4566 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4572 * mono_type_stack_size:
4573 * @t: the type to return the size it uses on the stack
4575 * Returns: the number of bytes required to hold an instance of this
4576 * type on the runtime stack
4579 mono_type_stack_size (MonoType *t, int *align)
4581 return mono_type_stack_size_internal (t, align, FALSE);
4585 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4588 MonoTypeEnum simple_type;
4589 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4590 int stack_slot_size = sizeof (gpointer);
4591 int stack_slot_align = MONO_ABI_ALIGNOF (gpointer);
4592 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4593 int stack_slot_size = SIZEOF_REGISTER;
4594 int stack_slot_align = SIZEOF_REGISTER;
4597 g_assert (t != NULL);
4603 *align = stack_slot_align;
4604 return stack_slot_size;
4607 simple_type = t->type;
4608 switch (simple_type) {
4609 case MONO_TYPE_BOOLEAN:
4610 case MONO_TYPE_CHAR:
4619 case MONO_TYPE_STRING:
4620 case MONO_TYPE_OBJECT:
4621 case MONO_TYPE_CLASS:
4622 case MONO_TYPE_SZARRAY:
4624 case MONO_TYPE_FNPTR:
4625 case MONO_TYPE_ARRAY:
4626 *align = stack_slot_align;
4627 return stack_slot_size;
4629 case MONO_TYPE_MVAR:
4630 g_assert (allow_open);
4631 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4632 *align = stack_slot_align;
4633 return stack_slot_size;
4635 /* The gparam can only match types given by gshared_constraint */
4636 return mono_type_stack_size_internal (t->data.generic_param->gshared_constraint, align, allow_open);
4638 case MONO_TYPE_TYPEDBYREF:
4639 *align = stack_slot_align;
4640 return stack_slot_size * 3;
4642 *align = MONO_ABI_ALIGNOF (float);
4643 return sizeof (float);
4646 *align = MONO_ABI_ALIGNOF (gint64);
4647 return sizeof (gint64);
4649 *align = MONO_ABI_ALIGNOF (double);
4650 return sizeof (double);
4651 case MONO_TYPE_VALUETYPE: {
4654 if (t->data.klass->enumtype)
4655 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4657 size = mono_class_value_size (t->data.klass, (guint32*)align);
4659 *align = *align + stack_slot_align - 1;
4660 *align &= ~(stack_slot_align - 1);
4662 size += stack_slot_size - 1;
4663 size &= ~(stack_slot_size - 1);
4668 case MONO_TYPE_GENERICINST: {
4669 MonoGenericClass *gclass = t->data.generic_class;
4670 MonoClass *container_class = gclass->container_class;
4673 g_assert (!gclass->context.class_inst->is_open);
4675 if (container_class->valuetype) {
4676 if (container_class->enumtype)
4677 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4679 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4681 *align = *align + stack_slot_align - 1;
4682 *align &= ~(stack_slot_align - 1);
4684 size += stack_slot_size - 1;
4685 size &= ~(stack_slot_size - 1);
4690 *align = stack_slot_align;
4691 return stack_slot_size;
4695 g_error ("type 0x%02x unknown", t->type);
4701 mono_type_generic_inst_is_valuetype (MonoType *type)
4703 g_assert (type->type == MONO_TYPE_GENERICINST);
4704 return type->data.generic_class->container_class->valuetype;
4708 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4710 return gclass->container_class->valuetype;
4714 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4716 MonoGenericInst *i1 = g1->context.class_inst;
4717 MonoGenericInst *i2 = g2->context.class_inst;
4719 if (g1->is_dynamic != g2->is_dynamic)
4721 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4723 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4725 return g1->is_tb_open == g2->is_tb_open;
4729 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4731 MonoGenericInst *i1 = g1->context.class_inst;
4732 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4734 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4736 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4738 return !g1->is_tb_open;
4742 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4744 /* FIXME: check if this seed is good enough */
4745 guint hash = 0xc01dfee7;
4746 if (context->class_inst)
4747 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4748 if (context->method_inst)
4749 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4754 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4756 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4760 * mono_metadata_str_hash:
4762 * This should be used instead of g_str_hash for computing hash codes visible
4763 * outside this module, since g_str_hash () is not guaranteed to be stable
4764 * (its not the same in eglib for example).
4767 mono_metadata_str_hash (gconstpointer v1)
4769 /* Same as g_str_hash () in glib */
4770 char *p = (char *) v1;
4775 hash = (hash << 5) - hash + *p;
4782 * mono_metadata_type_hash:
4785 * Computes an hash value for @t1 to be used in GHashTable.
4786 * The returned hash is guaranteed to be the same across executions.
4789 mono_metadata_type_hash (MonoType *t1)
4791 guint hash = t1->type;
4793 hash |= t1->byref << 6; /* do not collide with t1->type values */
4795 case MONO_TYPE_VALUETYPE:
4796 case MONO_TYPE_CLASS:
4797 case MONO_TYPE_SZARRAY: {
4798 MonoClass *class = t1->data.klass;
4800 * Dynamic classes must not be hashed on their type since it can change
4801 * during runtime. For example, if we hash a reference type that is
4802 * later made into a valuetype.
4804 * This is specially problematic with generic instances since they are
4805 * inserted in a bunch of hash tables before been finished.
4807 if (image_is_dynamic (class->image))
4808 return (t1->byref << 6) | mono_metadata_str_hash (class->name);
4809 return ((hash << 5) - hash) ^ mono_metadata_str_hash (class->name);
4812 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4813 case MONO_TYPE_ARRAY:
4814 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4815 case MONO_TYPE_GENERICINST:
4816 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4818 case MONO_TYPE_MVAR:
4819 return ((hash << 5) - hash) ^ mono_metadata_generic_param_hash (t1->data.generic_param);
4826 mono_metadata_generic_param_hash (MonoGenericParam *p)
4829 MonoGenericParamInfo *info;
4831 hash = (mono_generic_param_num (p) << 2);
4832 if (p->gshared_constraint)
4833 hash = ((hash << 5) - hash) ^ mono_metadata_type_hash (p->gshared_constraint);
4834 info = mono_generic_param_info (p);
4835 /* Can't hash on the owner klass/method, since those might not be set when this is called */
4837 hash = ((hash << 5) - hash) ^ info->token;
4842 mono_metadata_generic_param_equal_internal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4846 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4848 if (p1->gshared_constraint && p2->gshared_constraint) {
4849 if (!mono_metadata_type_equal (p1->gshared_constraint, p2->gshared_constraint))
4852 if (p1->gshared_constraint != p2->gshared_constraint)
4857 * We have to compare the image as well because if we didn't,
4858 * the generic_inst_cache lookup wouldn't care about the image
4859 * of generic params, so what could happen is that a generic
4860 * inst with params from image A is put into the cache, then
4861 * image B gets that generic inst from the cache, image A is
4862 * unloaded, so the inst is deleted, but image B still retains
4865 * The AOT runtime doesn't set the image when it's decoding
4866 * types, so we only compare it when the owner is NULL.
4868 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4869 (mono_generic_param_owner (p1) || p1->image == p2->image))
4873 * If `signature_only' is true, we're comparing two (method) signatures.
4874 * In this case, the owner of two type parameters doesn't need to match.
4877 return signature_only;
4881 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2)
4883 return mono_metadata_generic_param_equal_internal (p1, p2, TRUE);
4887 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4891 if (c1->generic_class && c2->generic_class)
4892 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4893 if (c1->generic_class && c2->generic_container)
4894 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4895 if (c1->generic_container && c2->generic_class)
4896 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4897 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4898 return mono_metadata_generic_param_equal_internal (
4899 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4900 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4901 return mono_metadata_generic_param_equal_internal (
4902 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4903 if (signature_only &&
4904 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4905 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4906 if (signature_only &&
4907 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
4908 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
4913 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4915 gpointer iter1 = 0, iter2 = 0;
4919 if (s1->call_convention != s2->call_convention)
4921 if (s1->sentinelpos != s2->sentinelpos)
4923 if (s1->hasthis != s2->hasthis)
4925 if (s1->explicit_this != s2->explicit_this)
4927 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4929 if (s1->param_count != s2->param_count)
4933 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4934 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4936 if (t1 == NULL || t2 == NULL)
4938 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4944 * mono_metadata_type_equal:
4948 * Determine if @t1 and @t2 represent the same type.
4949 * Returns: #TRUE if @t1 and @t2 are equal.
4952 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4954 if (t1->type != t2->type || t1->byref != t2->byref)
4958 case MONO_TYPE_VOID:
4959 case MONO_TYPE_BOOLEAN:
4960 case MONO_TYPE_CHAR:
4971 case MONO_TYPE_STRING:
4974 case MONO_TYPE_OBJECT:
4975 case MONO_TYPE_TYPEDBYREF:
4977 case MONO_TYPE_VALUETYPE:
4978 case MONO_TYPE_CLASS:
4979 case MONO_TYPE_SZARRAY:
4980 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4982 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4983 case MONO_TYPE_ARRAY:
4984 if (t1->data.array->rank != t2->data.array->rank)
4986 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4987 case MONO_TYPE_GENERICINST:
4988 return _mono_metadata_generic_class_equal (
4989 t1->data.generic_class, t2->data.generic_class, signature_only);
4991 return mono_metadata_generic_param_equal_internal (
4992 t1->data.generic_param, t2->data.generic_param, signature_only);
4993 case MONO_TYPE_MVAR:
4994 return mono_metadata_generic_param_equal_internal (
4995 t1->data.generic_param, t2->data.generic_param, signature_only);
4996 case MONO_TYPE_FNPTR:
4997 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
4999 g_error ("implement type compare for %0x!", t1->type);
5007 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
5009 return do_mono_metadata_type_equal (t1, t2, FALSE);
5013 * mono_metadata_type_equal_full:
5016 * @signature_only: if signature only comparison should be made
5018 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
5019 * behaves the same way as mono_metadata_type_equal.
5020 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
5021 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
5024 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
5026 return do_mono_metadata_type_equal (t1, t2, signature_only);
5030 * mono_metadata_signature_equal:
5031 * @sig1: a signature
5032 * @sig2: another signature
5034 * Determine if @sig1 and @sig2 represent the same signature, with the
5035 * same number of arguments and the same types.
5036 * Returns: #TRUE if @sig1 and @sig2 are equal.
5039 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
5043 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
5046 if (sig1->generic_param_count != sig2->generic_param_count)
5050 * We're just comparing the signatures of two methods here:
5052 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
5053 * U and V are equal here.
5055 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
5058 for (i = 0; i < sig1->param_count; i++) {
5059 MonoType *p1 = sig1->params[i];
5060 MonoType *p2 = sig2->params[i];
5062 /* if (p1->attrs != p2->attrs)
5065 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
5069 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
5075 * mono_metadata_type_dup:
5076 * @image: image to alloc memory from
5077 * @original: type to duplicate
5079 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
5082 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
5085 int sizeof_o = MONO_SIZEOF_TYPE;
5087 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
5089 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
5091 memcpy (r, o, sizeof_o);
5093 if (o->type == MONO_TYPE_PTR) {
5094 r->data.type = mono_metadata_type_dup (image, o->data.type);
5095 } else if (o->type == MONO_TYPE_ARRAY) {
5096 r->data.array = mono_dup_array_type (image, o->data.array);
5097 } else if (o->type == MONO_TYPE_FNPTR) {
5098 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
5099 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
5105 mono_signature_hash (MonoMethodSignature *sig)
5107 guint i, res = sig->ret->type;
5109 for (i = 0; i < sig->param_count; i++)
5110 res = (res << 5) - res + mono_type_hash (sig->params[i]);
5116 * mono_metadata_encode_value:
5117 * @value: value to encode
5118 * @buf: buffer where to write the compressed representation
5119 * @endbuf: pointer updated to point at the end of the encoded output
5121 * Encodes the value @value in the compressed representation used
5122 * in metadata and stores the result in @buf. @buf needs to be big
5123 * enough to hold the data (4 bytes).
5126 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
5132 else if (value < 0x4000) {
5133 p [0] = 0x80 | (value >> 8);
5134 p [1] = value & 0xff;
5137 p [0] = (value >> 24) | 0xc0;
5138 p [1] = (value >> 16) & 0xff;
5139 p [2] = (value >> 8) & 0xff;
5140 p [3] = value & 0xff;
5148 * mono_metadata_field_info:
5149 * @meta: the Image the field is defined in
5150 * @index: the index in the field table representing the field
5151 * @offset: a pointer to an integer where to store the offset that
5152 * may have been specified for the field in a FieldLayout table
5153 * @rva: a pointer to the RVA of the field data in the image that
5154 * may have been defined in a FieldRVA table
5155 * @marshal_spec: a pointer to the marshal spec that may have been
5156 * defined for the field in a FieldMarshal table.
5158 * Gather info for field @index that may have been defined in the FieldLayout,
5159 * FieldRVA and FieldMarshal tables.
5160 * Either of offset, rva and marshal_spec can be NULL if you're not interested
5164 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5165 MonoMarshalSpec **marshal_spec)
5167 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
5171 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5172 MonoMarshalSpec **marshal_spec)
5174 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
5178 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5179 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
5181 MonoTableInfo *tdef;
5184 loc.idx = index + 1;
5185 if (meta->uncompressed_metadata)
5186 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
5189 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
5191 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
5194 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5195 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
5197 *offset = (guint32)-1;
5201 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
5203 loc.col_idx = MONO_FIELD_RVA_FIELD;
5206 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5208 * LAMESPEC: There is no signature, no nothing, just the raw data.
5210 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
5218 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
5219 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, meta, p);
5226 * mono_metadata_get_constant_index:
5227 * @meta: the Image the field is defined in
5228 * @index: the token that may have a row defined in the constants table
5229 * @hint: possible position for the row
5231 * @token must be a FieldDef, ParamDef or PropertyDef token.
5233 * Returns: the index into the Constants table or 0 if not found.
5236 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
5238 MonoTableInfo *tdef;
5240 guint32 index = mono_metadata_token_index (token);
5242 tdef = &meta->tables [MONO_TABLE_CONSTANT];
5243 index <<= MONO_HASCONSTANT_BITS;
5244 switch (mono_metadata_token_table (token)) {
5245 case MONO_TABLE_FIELD:
5246 index |= MONO_HASCONSTANT_FIEDDEF;
5248 case MONO_TABLE_PARAM:
5249 index |= MONO_HASCONSTANT_PARAM;
5251 case MONO_TABLE_PROPERTY:
5252 index |= MONO_HASCONSTANT_PROPERTY;
5255 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5259 loc.col_idx = MONO_CONSTANT_PARENT;
5262 /* FIXME: Index translation */
5264 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5267 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5268 return loc.result + 1;
5274 * mono_metadata_events_from_typedef:
5275 * @meta: metadata context
5276 * @index: 0-based index (in the TypeDef table) describing a type
5278 * Returns: the 0-based index in the Event table for the events in the
5279 * type. The last event that belongs to the type (plus 1) is stored
5280 * in the @end_idx pointer.
5283 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5287 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5295 loc.col_idx = MONO_EVENT_MAP_PARENT;
5296 loc.idx = index + 1;
5298 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5301 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5302 if (loc.result + 1 < tdef->rows) {
5303 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5305 end = meta->tables [MONO_TABLE_EVENT].rows;
5313 * mono_metadata_methods_from_event:
5314 * @meta: metadata context
5315 * @index: 0-based index (in the Event table) describing a event
5317 * Returns: the 0-based index in the MethodDef table for the methods in the
5318 * event. The last method that belongs to the event (plus 1) is stored
5319 * in the @end_idx pointer.
5322 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5326 guint32 cols [MONO_METHOD_SEMA_SIZE];
5327 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5333 if (meta->uncompressed_metadata)
5334 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5337 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5338 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5340 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5345 * We may end up in the middle of the rows...
5348 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5354 while (end < msemt->rows) {
5355 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5356 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5365 * mono_metadata_properties_from_typedef:
5366 * @meta: metadata context
5367 * @index: 0-based index (in the TypeDef table) describing a type
5369 * Returns: the 0-based index in the Property table for the properties in the
5370 * type. The last property that belongs to the type (plus 1) is stored
5371 * in the @end_idx pointer.
5374 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5378 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5386 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5387 loc.idx = index + 1;
5389 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5392 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5393 if (loc.result + 1 < tdef->rows) {
5394 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5396 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5404 * mono_metadata_methods_from_property:
5405 * @meta: metadata context
5406 * @index: 0-based index (in the PropertyDef table) describing a property
5408 * Returns: the 0-based index in the MethodDef table for the methods in the
5409 * property. The last method that belongs to the property (plus 1) is stored
5410 * in the @end_idx pointer.
5413 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5417 guint32 cols [MONO_METHOD_SEMA_SIZE];
5418 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5424 if (meta->uncompressed_metadata)
5425 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5428 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5429 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5431 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5436 * We may end up in the middle of the rows...
5439 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5445 while (end < msemt->rows) {
5446 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5447 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5456 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5459 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5464 /* No index translation seems to be needed */
5467 loc.col_idx = MONO_IMPLMAP_MEMBER;
5468 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5470 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5473 return loc.result + 1;
5477 * @image: context where the image is created
5478 * @type_spec: typespec token
5479 * @deprecated use mono_type_create_from_typespec_checked that has proper error handling
5481 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5485 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5488 MonoType *type = mono_type_create_from_typespec_checked (image, type_spec, &error);
5490 g_error ("Could not create typespec %x due to %s", type_spec, mono_error_get_message (&error));
5495 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error)
5498 guint32 idx = mono_metadata_token_index (type_spec);
5500 guint32 cols [MONO_TYPESPEC_SIZE];
5502 MonoType *type, *type2;
5504 mono_error_init (error);
5506 mono_image_lock (image);
5507 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5508 mono_image_unlock (image);
5512 t = &image->tables [MONO_TABLE_TYPESPEC];
5514 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5515 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5517 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5518 mono_error_set_bad_image (error, image, "Could not verify type spec %08x.", type_spec);
5522 mono_metadata_decode_value (ptr, &ptr);
5524 type = mono_metadata_parse_type_internal (image, NULL, MONO_PARSE_TYPE, 0, TRUE, ptr, &ptr);
5526 if (mono_loader_get_last_error ())
5527 mono_error_set_from_loader_error (error);
5529 mono_error_set_bad_image (error, image, "Could not parse type spec %08x.", type_spec);
5533 type2 = mono_metadata_type_dup (image, type);
5534 mono_metadata_free_type (type);
5536 mono_image_lock (image);
5537 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5538 /* We might leak some data in the image mempool if found */
5540 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5543 mono_image_unlock (image);
5550 mono_image_strndup (MonoImage *image, const char *data, guint len)
5554 return g_strndup (data, len);
5555 res = mono_image_alloc (image, len + 1);
5556 memcpy (res, data, len);
5562 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5564 return mono_metadata_parse_marshal_spec_full (NULL, image, ptr);
5568 * If IMAGE is non-null, memory will be allocated from its mempool, otherwise it will be allocated using malloc.
5569 * PARENT_IMAGE is the image containing the marshal spec.
5572 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr)
5574 MonoMarshalSpec *res;
5576 const char *start = ptr;
5578 /* fixme: this is incomplete, but I cant find more infos in the specs */
5581 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5583 res = g_new0 (MonoMarshalSpec, 1);
5585 len = mono_metadata_decode_value (ptr, &ptr);
5586 res->native = *ptr++;
5588 if (res->native == MONO_NATIVE_LPARRAY) {
5589 res->data.array_data.param_num = -1;
5590 res->data.array_data.num_elem = -1;
5591 res->data.array_data.elem_mult = -1;
5593 if (ptr - start <= len)
5594 res->data.array_data.elem_type = *ptr++;
5595 if (ptr - start <= len)
5596 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5597 if (ptr - start <= len)
5598 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5599 if (ptr - start <= len) {
5601 * LAMESPEC: Older spec versions say this parameter comes before
5602 * num_elem. Never spec versions don't talk about elem_mult at
5603 * all, but csc still emits it, and it is used to distinguish
5604 * between param_num being 0, and param_num being omitted.
5605 * So if (param_num == 0) && (num_elem > 0), then
5606 * elem_mult == 0 -> the array size is num_elem
5607 * elem_mult == 1 -> the array size is @param_num + num_elem
5609 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5613 if (res->native == MONO_NATIVE_BYVALTSTR) {
5614 if (ptr - start <= len)
5615 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5618 if (res->native == MONO_NATIVE_BYVALARRAY) {
5619 if (ptr - start <= len)
5620 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5623 if (res->native == MONO_NATIVE_CUSTOM) {
5624 /* skip unused type guid */
5625 len = mono_metadata_decode_value (ptr, &ptr);
5627 /* skip unused native type name */
5628 len = mono_metadata_decode_value (ptr, &ptr);
5630 /* read custom marshaler type name */
5631 len = mono_metadata_decode_value (ptr, &ptr);
5632 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5634 /* read cookie string */
5635 len = mono_metadata_decode_value (ptr, &ptr);
5636 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5637 res->data.custom_data.image = parent_image;
5640 if (res->native == MONO_NATIVE_SAFEARRAY) {
5641 res->data.safearray_data.elem_type = 0;
5642 res->data.safearray_data.num_elem = 0;
5643 if (ptr - start <= len)
5644 res->data.safearray_data.elem_type = *ptr++;
5645 if (ptr - start <= len)
5646 res->data.safearray_data.num_elem = *ptr++;
5652 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5654 if (spec->native == MONO_NATIVE_CUSTOM) {
5655 g_free (spec->data.custom_data.custom_name);
5656 g_free (spec->data.custom_data.cookie);
5662 * mono_type_to_unmanaged:
5664 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5665 * describing the underlying native reprensetation of the type.
5667 * In addition the value pointed by
5668 * "conv" will contain the kind of marshalling required for this
5669 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5672 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5673 gboolean unicode, MonoMarshalConv *conv)
5675 MonoMarshalConv dummy_conv;
5681 *conv = MONO_MARSHAL_CONV_NONE;
5684 return MONO_NATIVE_UINT;
5688 case MONO_TYPE_BOOLEAN:
5690 switch (mspec->native) {
5691 case MONO_NATIVE_VARIANTBOOL:
5692 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5693 return MONO_NATIVE_VARIANTBOOL;
5694 case MONO_NATIVE_BOOLEAN:
5695 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5696 return MONO_NATIVE_BOOLEAN;
5697 case MONO_NATIVE_I1:
5698 case MONO_NATIVE_U1:
5699 return mspec->native;
5701 g_error ("cant marshal bool to native type %02x", mspec->native);
5704 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5705 return MONO_NATIVE_BOOLEAN;
5706 case MONO_TYPE_CHAR:
5708 switch (mspec->native) {
5709 case MONO_NATIVE_U2:
5710 case MONO_NATIVE_U1:
5711 return mspec->native;
5713 g_error ("cant marshal char to native type %02x", mspec->native);
5716 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5717 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5718 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5719 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5720 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5721 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5722 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5723 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5724 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5725 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5726 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5727 case MONO_TYPE_STRING:
5729 switch (mspec->native) {
5730 case MONO_NATIVE_BSTR:
5731 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5732 return MONO_NATIVE_BSTR;
5733 case MONO_NATIVE_LPSTR:
5734 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5735 return MONO_NATIVE_LPSTR;
5736 case MONO_NATIVE_LPWSTR:
5737 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5738 return MONO_NATIVE_LPWSTR;
5739 case MONO_NATIVE_LPTSTR:
5740 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5741 return MONO_NATIVE_LPTSTR;
5742 case MONO_NATIVE_ANSIBSTR:
5743 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5744 return MONO_NATIVE_ANSIBSTR;
5745 case MONO_NATIVE_TBSTR:
5746 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5747 return MONO_NATIVE_TBSTR;
5748 case MONO_NATIVE_BYVALTSTR:
5750 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5752 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5753 return MONO_NATIVE_BYVALTSTR;
5755 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);
5759 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5760 return MONO_NATIVE_LPWSTR;
5763 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5764 return MONO_NATIVE_LPSTR;
5766 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5767 case MONO_TYPE_VALUETYPE: /*FIXME*/
5768 if (type->data.klass->enumtype) {
5769 t = mono_class_enum_basetype (type->data.klass)->type;
5772 if (type->data.klass == mono_defaults.handleref_class){
5773 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5774 return MONO_NATIVE_INT;
5776 return MONO_NATIVE_STRUCT;
5777 case MONO_TYPE_SZARRAY:
5778 case MONO_TYPE_ARRAY:
5780 switch (mspec->native) {
5781 case MONO_NATIVE_BYVALARRAY:
5782 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5783 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5785 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5786 return MONO_NATIVE_BYVALARRAY;
5787 case MONO_NATIVE_SAFEARRAY:
5788 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5789 return MONO_NATIVE_SAFEARRAY;
5790 case MONO_NATIVE_LPARRAY:
5791 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5792 return MONO_NATIVE_LPARRAY;
5794 g_error ("cant marshal array as native type %02x", mspec->native);
5798 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5799 return MONO_NATIVE_LPARRAY;
5800 case MONO_TYPE_I: return MONO_NATIVE_INT;
5801 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5802 case MONO_TYPE_CLASS:
5803 case MONO_TYPE_OBJECT: {
5804 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5806 switch (mspec->native) {
5807 case MONO_NATIVE_STRUCT:
5808 return MONO_NATIVE_STRUCT;
5809 case MONO_NATIVE_CUSTOM:
5810 return MONO_NATIVE_CUSTOM;
5811 case MONO_NATIVE_INTERFACE:
5812 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5813 return MONO_NATIVE_INTERFACE;
5814 case MONO_NATIVE_IDISPATCH:
5815 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5816 return MONO_NATIVE_IDISPATCH;
5817 case MONO_NATIVE_IUNKNOWN:
5818 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5819 return MONO_NATIVE_IUNKNOWN;
5820 case MONO_NATIVE_FUNC:
5821 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5822 type->data.klass == mono_defaults.delegate_class ||
5823 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5824 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5825 return MONO_NATIVE_FUNC;
5829 g_error ("cant marshal object as native type %02x", mspec->native);
5832 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5833 type->data.klass == mono_defaults.delegate_class ||
5834 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5835 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5836 return MONO_NATIVE_FUNC;
5838 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5839 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5840 return MONO_NATIVE_INT;
5842 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5843 return MONO_NATIVE_STRUCT;
5845 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5846 case MONO_TYPE_GENERICINST:
5847 type = &type->data.generic_class->container_class->byval_arg;
5850 case MONO_TYPE_TYPEDBYREF:
5852 g_error ("type 0x%02x not handled in marshal", t);
5854 return MONO_NATIVE_MAX;
5858 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5861 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5867 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5868 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5870 /* FIXME: Index translation */
5872 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5875 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5879 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error)
5881 MonoMethod *result = NULL;
5882 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5884 mono_error_init (error);
5886 switch (tok & MONO_METHODDEFORREF_MASK) {
5887 case MONO_METHODDEFORREF_METHODDEF:
5888 result = mono_get_method_checked (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context, error);
5890 case MONO_METHODDEFORREF_METHODREF:
5891 result = mono_get_method_checked (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context, error);
5894 mono_error_set_bad_image (error, m, "Invalid MethodDefOfRef token %x", tok);
5901 * mono_class_get_overrides_full:
5903 * Return the method overrides belonging to class @type_token in @overrides, and
5904 * the number of overrides in @num_overrides.
5906 * Returns: TRUE on success, FALSE on failure.
5909 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5910 MonoGenericContext *generic_context)
5914 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5917 guint32 cols [MONO_METHODIMPL_SIZE];
5918 MonoMethod **result;
5929 loc.col_idx = MONO_METHODIMPL_CLASS;
5930 loc.idx = mono_metadata_token_index (type_token);
5932 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5938 * We may end up in the middle of the rows...
5941 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5946 while (end < tdef->rows) {
5947 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5953 result = g_new (MonoMethod*, num * 2);
5954 for (i = 0; i < num; ++i) {
5957 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
5958 mono_error_cleanup (&error); /* FIXME don't swallow the error */
5963 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5964 method = method_from_method_def_or_ref (
5965 image, cols [MONO_METHODIMPL_DECLARATION], generic_context, &error);
5966 if (method == NULL) {
5967 mono_error_cleanup (&error); /* FIXME don't swallow the error */
5970 result [i * 2] = method;
5971 method = method_from_method_def_or_ref (
5972 image, cols [MONO_METHODIMPL_BODY], generic_context, &error);
5973 if (method == NULL) {
5974 mono_error_cleanup (&error); /* FIXME don't swallow the error */
5977 result [i * 2 + 1] = method;
5980 *overrides = result;
5982 *num_overrides = num;
5987 * mono_guid_to_string:
5989 * Converts a 16 byte Microsoft GUID to the standard string representation.
5992 mono_guid_to_string (const guint8 *guid)
5994 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5995 guid[3], guid[2], guid[1], guid[0],
5999 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6003 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container, MonoError *error)
6005 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
6006 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
6007 guint32 i, token, found;
6008 MonoClass *klass, **res;
6009 GSList *cons = NULL, *tmp;
6010 MonoGenericContext *context = &container->context;
6012 mono_error_init (error);
6014 *constraints = NULL;
6016 for (i = 0; i < tdef->rows; ++i) {
6017 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
6018 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
6019 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
6020 klass = mono_class_get_and_inflate_typespec_checked (image, token, context, error);
6022 g_slist_free (cons);
6025 cons = g_slist_append (cons, klass);
6028 /* contiguous list finished */
6035 res = mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
6036 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
6037 res [i] = tmp->data;
6039 g_slist_free (cons);
6045 * mono_metadata_get_generic_param_row:
6048 * @token: TypeOrMethodDef token, owner for GenericParam
6049 * @owner: coded token, set on return
6051 * Returns: 1-based row-id in the GenericParam table whose
6052 * owner is @token. 0 if not found.
6055 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
6057 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6064 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
6065 *owner = MONO_TYPEORMETHOD_TYPE;
6066 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6067 *owner = MONO_TYPEORMETHOD_METHOD;
6069 g_error ("wrong token %x to get_generic_param_row", token);
6072 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
6075 loc.col_idx = MONO_GENERICPARAM_OWNER;
6078 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6081 /* Find the first entry by searching backwards */
6082 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
6085 return loc.result + 1;
6089 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
6092 return mono_metadata_get_generic_param_row (image, token, &owner);
6096 * Memory is allocated from IMAGE's mempool.
6099 mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
6100 MonoGenericContainer *container, MonoError *error)
6103 guint32 start_row, i, owner;
6104 mono_error_init (error);
6106 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
6108 for (i = 0; i < container->type_argc; i++) {
6109 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container, error)) {
6110 mono_loader_assert_no_error ();
6118 * mono_metadata_load_generic_params:
6120 * Load the type parameters from the type or method definition @token.
6122 * Use this method after parsing a type or method definition to figure out whether it's a generic
6123 * type / method. When parsing a method definition, @parent_container points to the generic container
6124 * of the current class, if any.
6126 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
6127 * creating the type.
6129 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
6131 * LOCKING: Acquires the loader lock
6134 MonoGenericContainer *
6135 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
6137 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6138 guint32 cols [MONO_GENERICPARAM_SIZE];
6139 guint32 i, owner = 0, n;
6140 MonoGenericContainer *container;
6141 MonoGenericParamFull *params;
6142 MonoGenericContext *context;
6144 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
6146 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6149 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
6150 container->image = image;
6153 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
6154 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
6155 params [n - 1].param.owner = container;
6156 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
6157 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
6158 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
6159 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
6160 if (params [n - 1].param.num != n - 1)
6161 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
6162 if (++i > tdef->rows)
6164 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6165 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
6167 container->type_argc = n;
6168 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
6169 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
6171 container->parent = parent_container;
6173 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6174 container->is_method = 1;
6176 g_assert (container->parent == NULL || container->is_method);
6178 context = &container->context;
6179 if (container->is_method) {
6180 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
6181 context->method_inst = mono_get_shared_generic_inst (container);
6183 context->class_inst = mono_get_shared_generic_inst (container);
6190 mono_get_shared_generic_inst (MonoGenericContainer *container)
6192 MonoType **type_argv;
6194 MonoGenericInst *nginst;
6197 type_argv = g_new0 (MonoType *, container->type_argc);
6198 helper = g_new0 (MonoType, container->type_argc);
6200 for (i = 0; i < container->type_argc; i++) {
6201 MonoType *t = &helper [i];
6203 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
6204 t->data.generic_param = mono_generic_container_get_param (container, i);
6209 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
6218 * mono_type_is_byref:
6219 * @type: the MonoType operated on
6221 * Returns: #TRUE if @type represents a type passed by reference,
6225 mono_type_is_byref (MonoType *type)
6231 * mono_type_get_type:
6232 * @type: the MonoType operated on
6234 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
6235 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
6238 mono_type_get_type (MonoType *type)
6244 * mono_type_get_signature:
6245 * @type: the MonoType operated on
6247 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
6249 * Returns: the MonoMethodSignature pointer that describes the signature
6250 * of the function pointer @type represents.
6252 MonoMethodSignature*
6253 mono_type_get_signature (MonoType *type)
6255 g_assert (type->type == MONO_TYPE_FNPTR);
6256 return type->data.method;
6260 * mono_type_get_class:
6261 * @type: the MonoType operated on
6263 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
6264 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
6267 * Returns: the MonoClass pointer that describes the class that @type represents.
6270 mono_type_get_class (MonoType *type)
6272 /* FIXME: review the runtime users before adding the assert here */
6273 return type->data.klass;
6277 * mono_type_get_array_type:
6278 * @type: the MonoType operated on
6280 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6282 * Returns: a MonoArrayType struct describing the array type that @type
6283 * represents. The info includes details such as rank, array element type
6284 * and the sizes and bounds of multidimensional arrays.
6287 mono_type_get_array_type (MonoType *type)
6289 return type->data.array;
6293 * mono_type_get_ptr_type:
6294 * @type: the MonoType operated on
6296 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6299 * Returns: the MonoType pointer that describes the type that @type
6300 * represents a pointer to.
6303 mono_type_get_ptr_type (MonoType *type)
6305 g_assert (type->type == MONO_TYPE_PTR);
6306 return type->data.type;
6310 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6312 /* FIXME: implement */
6317 * mono_type_is_struct:
6318 * @type: the MonoType operated on
6320 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6321 * or a basic type like System.Int32. #FALSE otherwise.
6324 mono_type_is_struct (MonoType *type)
6326 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6327 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6328 ((type->type == MONO_TYPE_GENERICINST) &&
6329 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6330 !type->data.generic_class->container_class->enumtype)));
6334 * mono_type_is_void:
6335 * @type: the MonoType operated on
6337 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6340 mono_type_is_void (MonoType *type)
6342 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6346 * mono_type_is_pointer:
6347 * @type: the MonoType operated on
6349 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6352 mono_type_is_pointer (MonoType *type)
6354 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6355 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6356 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6357 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6358 (type->type == MONO_TYPE_FNPTR)));
6362 * mono_type_is_reference:
6363 * @type: the MonoType operated on
6365 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6368 mono_type_is_reference (MonoType *type)
6370 return (type && (((type->type == MONO_TYPE_STRING) ||
6371 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6372 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6373 ((type->type == MONO_TYPE_GENERICINST) &&
6374 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6378 * mono_signature_get_return_type:
6379 * @sig: the method signature inspected
6381 * Returns: the return type of the method signature @sig
6384 mono_signature_get_return_type (MonoMethodSignature *sig)
6390 * mono_signature_get_params:
6391 * @sig: the method signature inspected
6392 * #iter: pointer to an iterator
6394 * Iterates over the parameters for the method signature @sig.
6395 * A void* pointer must be initualized to #NULL to start the iteration
6396 * and it's address is passed to this function repeteadly until it returns
6399 * Returns: the next parameter type of the method signature @sig,
6400 * #NULL when finished.
6403 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6409 /* start from the first */
6410 if (sig->param_count) {
6411 *iter = &sig->params [0];
6412 return sig->params [0];
6420 if (type < &sig->params [sig->param_count]) {
6428 * mono_signature_get_param_count:
6429 * @sig: the method signature inspected
6431 * Returns: the number of parameters in the method signature @sig.
6434 mono_signature_get_param_count (MonoMethodSignature *sig)
6436 return sig->param_count;
6440 * mono_signature_get_call_conv:
6441 * @sig: the method signature inspected
6443 * Returns: the call convention of the method signature @sig.
6446 mono_signature_get_call_conv (MonoMethodSignature *sig)
6448 return sig->call_convention;
6452 * mono_signature_vararg_start:
6453 * @sig: the method signature inspected
6455 * Returns: the number of the first vararg parameter in the
6456 * method signature @sig. -1 if this is not a vararg signature.
6459 mono_signature_vararg_start (MonoMethodSignature *sig)
6461 return sig->sentinelpos;
6465 * mono_signature_is_instance:
6466 * @sig: the method signature inspected
6468 * Returns: #TRUE if this the method signature @sig has an implicit
6469 * first instance argument. #FALSE otherwise.
6472 mono_signature_is_instance (MonoMethodSignature *sig)
6474 return sig->hasthis;
6478 * mono_signature_param_is_out
6479 * @sig: the method signature inspected
6480 * @param_num: the 0-based index of the inspected parameter
6482 * Returns: #TRUE if the parameter is an out parameter, #FALSE
6486 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6488 g_assert (param_num >= 0 && param_num < sig->param_count);
6489 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6493 * mono_signature_explicit_this:
6494 * @sig: the method signature inspected
6496 * Returns: #TRUE if this the method signature @sig has an explicit
6497 * instance argument. #FALSE otherwise.
6500 mono_signature_explicit_this (MonoMethodSignature *sig)
6502 return sig->explicit_this;
6505 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6507 mono_aligned_addr_hash (gconstpointer ptr)
6509 return GPOINTER_TO_UINT (ptr) >> 3;
6513 * If @field belongs to an inflated generic class, return the corresponding field of the
6514 * generic type definition class.
6517 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6522 if (!field->parent->generic_class)
6525 gtd = field->parent->generic_class->container_class;
6526 offset = field - field->parent->fields;
6527 return gtd->fields + offset;
6531 * If @event belongs to an inflated generic class, return the corresponding event of the
6532 * generic type definition class.
6535 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6540 if (!event->parent->generic_class)
6543 gtd = event->parent->generic_class->container_class;
6544 offset = event - event->parent->ext->events;
6545 return gtd->ext->events + offset;
6549 * If @property belongs to an inflated generic class, return the corresponding property of the
6550 * generic type definition class.
6553 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6558 if (!property->parent->generic_class)
6561 gtd = property->parent->generic_class->container_class;
6562 offset = property - property->parent->ext->properties;
6563 return gtd->ext->properties + offset;
6567 mono_method_get_wrapper_cache (MonoMethod *method)
6569 if (method->is_inflated) {
6570 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
6571 return &imethod->owner->wrapper_caches;
6573 return &method->klass->image->wrapper_caches;