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, MonoError *error);
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"
487 // Amount initially reserved in each imageset's mempool.
488 // FIXME: This number is arbitrary, a more practical number should be found
489 #define INITIAL_IMAGE_SET_SIZE 1024
492 * mono_meta_table_name:
493 * @table: table index
495 * Returns the name of the given ECMA metadata logical format table
496 * as described in ECMA 335, Partition II, Section 22.
498 * Returns: the name for the @table index
501 mono_meta_table_name (int table)
503 if ((table < 0) || (table > MONO_TABLE_LAST))
506 #ifdef HAVE_ARRAY_ELEM_INIT
507 return (const char*)&tablestr + tableidx [table];
509 return mono_tables_names [table];
513 /* The guy who wrote the spec for this should not be allowed near a
516 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
517 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
518 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
519 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
520 inverse of this mapping.
523 #define rtsize(meta,s,b) (((s) < (1 << (b)) ? 2 : 4))
524 #define idx_size(meta,tableidx) ((meta)->tables [(tableidx)].rows < 65536 ? 2 : 4)
526 /* Reference: Partition II - 23.2.6 */
528 * mono_metadata_compute_size:
529 * @meta: metadata context
530 * @tableindex: metadata table number
531 * @result_bitfield: pointer to guint32 where to store additional info
533 * mono_metadata_compute_size() computes the lenght in bytes of a single
534 * row in a metadata table. The size of each column is encoded in the
535 * @result_bitfield return value along with the number of columns in the table.
536 * the resulting bitfield should be handed to the mono_metadata_table_size()
537 * and mono_metadata_table_count() macros.
538 * This is a Mono runtime internal only function.
541 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
543 guint32 bitfield = 0;
544 int size = 0, field_size = 0;
547 const unsigned char *description = TableSchemas + table_description [tableindex];
549 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
552 field_size = 4; break;
555 field_size = 2; break;
558 field_size = 1; break;
560 case MONO_MT_BLOB_IDX:
561 field_size = meta->idx_blob_wide ? 4 : 2; break;
563 case MONO_MT_STRING_IDX:
564 field_size = meta->idx_string_wide ? 4 : 2; break;
566 case MONO_MT_GUID_IDX:
567 field_size = meta->idx_guid_wide ? 4 : 2; break;
569 case MONO_MT_TABLE_IDX:
570 /* Uhm, a table index can point to other tables besides the current one
571 * so, it's not correct to use the rowcount of the current table to
572 * get the size for this column - lupus
574 switch (tableindex) {
575 case MONO_TABLE_ASSEMBLYREFOS:
577 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
578 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
580 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
581 case MONO_TABLE_CLASSLAYOUT:
583 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
584 case MONO_TABLE_EVENTMAP:
585 g_assert (i == 0 || i == 1);
586 field_size = i ? idx_size (meta, MONO_TABLE_EVENT):
587 idx_size (meta, MONO_TABLE_TYPEDEF);
589 case MONO_TABLE_EVENT_POINTER:
591 field_size = idx_size (meta, MONO_TABLE_EVENT); break;
592 case MONO_TABLE_EXPORTEDTYPE:
594 /* the index is in another metadata file, so it must be 4 */
595 field_size = 4; break;
596 case MONO_TABLE_FIELDLAYOUT:
598 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
599 case MONO_TABLE_FIELDRVA:
601 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
602 case MONO_TABLE_FIELD_POINTER:
604 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
605 case MONO_TABLE_IMPLMAP:
607 field_size = idx_size (meta, MONO_TABLE_MODULEREF); break;
608 case MONO_TABLE_INTERFACEIMPL:
610 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
611 case MONO_TABLE_METHOD:
613 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
614 case MONO_TABLE_METHODIMPL:
616 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
617 case MONO_TABLE_METHODSEMANTICS:
619 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
620 case MONO_TABLE_METHOD_POINTER:
622 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
623 case MONO_TABLE_NESTEDCLASS:
624 g_assert (i == 0 || i == 1);
625 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
626 case MONO_TABLE_PARAM_POINTER:
628 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
629 case MONO_TABLE_PROPERTYMAP:
630 g_assert (i == 0 || i == 1);
631 field_size = i ? idx_size (meta, MONO_TABLE_PROPERTY):
632 idx_size (meta, MONO_TABLE_TYPEDEF);
634 case MONO_TABLE_PROPERTY_POINTER:
636 field_size = idx_size (meta, MONO_TABLE_PROPERTY); break;
637 case MONO_TABLE_TYPEDEF:
638 g_assert (i == 4 || i == 5);
639 field_size = i == 4 ? idx_size (meta, MONO_TABLE_FIELD):
640 idx_size (meta, MONO_TABLE_METHOD);
642 case MONO_TABLE_GENERICPARAM:
644 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
645 /*This is a coded token for 2 tables, so takes 1 bit */
646 field_size = rtsize (meta, n, 16 - MONO_TYPEORMETHOD_BITS);
648 case MONO_TABLE_GENERICPARAMCONSTRAINT:
650 field_size = idx_size (meta, MONO_TABLE_GENERICPARAM);
652 case MONO_TABLE_LOCALSCOPE:
655 // FIXME: This table is in another file
656 field_size = idx_size (meta, MONO_TABLE_METHOD);
659 field_size = idx_size (meta, MONO_TABLE_IMPORTSCOPE);
662 field_size = idx_size (meta, MONO_TABLE_LOCALVARIABLE);
665 field_size = idx_size (meta, MONO_TABLE_LOCALCONSTANT);
668 g_assert_not_reached ();
672 case MONO_TABLE_METHODBODY:
674 field_size = idx_size (meta, MONO_TABLE_DOCUMENT);
677 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
682 * HasConstant: ParamDef, FieldDef, Property
684 case MONO_MT_CONST_IDX:
685 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
686 meta->tables [MONO_TABLE_FIELD].rows);
687 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
689 /* 2 bits to encode tag */
690 field_size = rtsize (meta, n, 16-2);
694 * HasCustomAttribute: points to any table but
697 case MONO_MT_HASCAT_IDX:
699 * We believe that since the signature and
700 * permission are indexing the Blob heap,
701 * we should consider the blob size first
703 /* I'm not a believer - lupus
704 if (meta->idx_blob_wide){
709 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
710 meta->tables [MONO_TABLE_FIELD].rows);
711 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
712 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
713 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
714 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
715 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
716 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
717 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
718 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
719 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
720 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
721 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
722 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
723 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
724 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
725 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
726 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
727 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
729 /* 5 bits to encode */
730 field_size = rtsize (meta, n, 16-5);
734 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
735 * MemberRef and String.
737 case MONO_MT_CAT_IDX:
738 /* String is a heap, if it is wide, we know the size */
740 if (meta->idx_string_wide){
745 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
746 meta->tables [MONO_TABLE_TYPEDEF].rows);
747 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
748 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
750 /* 3 bits to encode */
751 field_size = rtsize (meta, n, 16-3);
755 * HasDeclSecurity: Typedef, MethodDef, Assembly
757 case MONO_MT_HASDEC_IDX:
758 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
759 meta->tables [MONO_TABLE_METHOD].rows);
760 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
762 /* 2 bits to encode */
763 field_size = rtsize (meta, n, 16-2);
767 * Implementation: File, AssemblyRef, ExportedType
769 case MONO_MT_IMPL_IDX:
770 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
771 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
772 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
774 /* 2 bits to encode tag */
775 field_size = rtsize (meta, n, 16-2);
779 * HasFieldMarshall: FieldDef, ParamDef
781 case MONO_MT_HFM_IDX:
782 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
783 meta->tables [MONO_TABLE_PARAM].rows);
785 /* 1 bit used to encode tag */
786 field_size = rtsize (meta, n, 16-1);
790 * MemberForwarded: FieldDef, MethodDef
793 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
794 meta->tables [MONO_TABLE_METHOD].rows);
796 /* 1 bit used to encode tag */
797 field_size = rtsize (meta, n, 16-1);
801 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
803 * It is TypeDef, _TypeRef_, TypeSpec, instead.
805 case MONO_MT_TDOR_IDX:
806 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
807 meta->tables [MONO_TABLE_TYPEREF].rows);
808 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
810 /* 2 bits to encode */
811 field_size = rtsize (meta, n, 16-2);
815 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
817 case MONO_MT_MRP_IDX:
818 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
819 meta->tables [MONO_TABLE_TYPEREF].rows);
820 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
821 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
822 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
824 /* 3 bits to encode */
825 field_size = rtsize (meta, n, 16 - 3);
829 * MethodDefOrRef: MethodDef, MemberRef
831 case MONO_MT_MDOR_IDX:
832 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
833 meta->tables [MONO_TABLE_MEMBERREF].rows);
835 /* 1 bit used to encode tag */
836 field_size = rtsize (meta, n, 16-1);
840 * HasSemantics: Property, Event
843 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
844 meta->tables [MONO_TABLE_EVENT].rows);
846 /* 1 bit used to encode tag */
847 field_size = rtsize (meta, n, 16-1);
851 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
854 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
855 meta->tables [MONO_TABLE_MODULEREF].rows);
856 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
857 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
859 /* 2 bits used to encode tag (ECMA spec claims 3) */
860 field_size = rtsize (meta, n, 16 - 2);
865 * encode field size as follows (we just need to
872 bitfield |= (field_size-1) << shift;
875 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
878 *result_bitfield = (i << 24) | bitfield;
883 * mono_metadata_compute_table_bases:
884 * @meta: metadata context to compute table values
886 * Computes the table bases for the metadata structure.
887 * This is an internal function used by the image loader code.
890 mono_metadata_compute_table_bases (MonoImage *meta)
893 const char *base = meta->tables_base;
895 for (i = 0; i < MONO_TABLE_NUM; i++) {
896 MonoTableInfo *table = &meta->tables [i];
897 if (table->rows == 0)
900 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
902 base += table->rows * table->row_size;
907 * mono_metadata_locate:
908 * @meta: metadata context
909 * @table: table code.
910 * @idx: index of element to retrieve from @table.
912 * Returns: a pointer to the @idx element in the metadata table
913 * whose code is @table.
916 mono_metadata_locate (MonoImage *meta, int table, int idx)
918 /* idx == 0 refers always to NULL */
919 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
921 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
925 * mono_metadata_locate_token:
926 * @meta: metadata context
927 * @token: metadata token
929 * Returns: a pointer to the data in the metadata represented by the
933 mono_metadata_locate_token (MonoImage *meta, guint32 token)
935 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
939 * mono_metadata_string_heap:
940 * @meta: metadata context
941 * @index: index into the string heap.
943 * Returns: an in-memory pointer to the @index in the string heap.
946 mono_metadata_string_heap (MonoImage *meta, guint32 index)
948 g_assert (index < meta->heap_strings.size);
949 g_return_val_if_fail (index < meta->heap_strings.size, "");
950 return meta->heap_strings.data + index;
954 * mono_metadata_user_string:
955 * @meta: metadata context
956 * @index: index into the user string heap.
958 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
961 mono_metadata_user_string (MonoImage *meta, guint32 index)
963 g_assert (index < meta->heap_us.size);
964 g_return_val_if_fail (index < meta->heap_us.size, "");
965 return meta->heap_us.data + index;
969 * mono_metadata_blob_heap:
970 * @meta: metadata context
971 * @index: index into the blob.
973 * Returns: an in-memory pointer to the @index in the Blob heap.
976 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
978 g_assert (index < meta->heap_blob.size);
979 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
980 return meta->heap_blob.data + index;
984 * mono_metadata_guid_heap:
985 * @meta: metadata context
986 * @index: index into the guid heap.
988 * Returns: an in-memory pointer to the @index in the guid heap.
991 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
994 index *= 16; /* adjust for guid size and 1-based index */
995 g_return_val_if_fail (index < meta->heap_guid.size, "");
996 return meta->heap_guid.data + index;
999 static const unsigned char *
1000 dword_align (const unsigned char *ptr)
1002 #if SIZEOF_VOID_P == 8
1003 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
1005 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
1010 * mono_metadata_decode_row:
1011 * @t: table to extract information from.
1012 * @idx: index in table.
1013 * @res: array of @res_size cols to store the results in
1015 * This decompresses the metadata element @idx in table @t
1016 * into the guint32 @res array that has res_size elements
1019 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
1021 guint32 bitfield = t->size_bitfield;
1022 int i, count = mono_metadata_table_count (bitfield);
1025 g_assert (idx < t->rows);
1026 g_assert (idx >= 0);
1027 data = t->base + idx * t->row_size;
1029 g_assert (res_size == count);
1031 for (i = 0; i < count; i++) {
1032 int n = mono_metadata_table_size (bitfield, i);
1036 res [i] = *data; break;
1038 res [i] = read16 (data); break;
1040 res [i] = read32 (data); break;
1042 g_assert_not_reached ();
1049 * mono_metadata_decode_row_col:
1050 * @t: table to extract information from.
1051 * @idx: index for row in table.
1052 * @col: column in the row.
1054 * This function returns the value of column @col from the @idx
1055 * row in the table @t.
1058 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
1060 guint32 bitfield = t->size_bitfield;
1062 register const char *data;
1065 g_assert (idx < t->rows);
1066 g_assert (col < mono_metadata_table_count (bitfield));
1067 data = t->base + idx * t->row_size;
1069 n = mono_metadata_table_size (bitfield, 0);
1070 for (i = 0; i < col; ++i) {
1072 n = mono_metadata_table_size (bitfield, i + 1);
1078 return read16 (data);
1080 return read32 (data);
1082 g_assert_not_reached ();
1088 * mono_metadata_decode_blob_size:
1089 * @ptr: pointer to a blob object
1090 * @rptr: the new position of the pointer
1092 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1094 * Returns: the size of the blob object
1097 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1099 const unsigned char *ptr = (const unsigned char *)xptr;
1102 if ((*ptr & 0x80) == 0){
1103 size = ptr [0] & 0x7f;
1105 } else if ((*ptr & 0x40) == 0){
1106 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1109 size = ((ptr [0] & 0x1f) << 24) +
1121 * mono_metadata_decode_value:
1122 * @ptr: pointer to decode from
1123 * @rptr: the new position of the pointer
1125 * This routine decompresses 32-bit values as specified in the "Blob and
1126 * Signature" section (22.2)
1128 * Returns: the decoded value
1131 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1133 const unsigned char *ptr = (const unsigned char *) _ptr;
1134 unsigned char b = *ptr;
1137 if ((b & 0x80) == 0){
1140 } else if ((b & 0x40) == 0){
1141 len = ((b & 0x3f) << 8 | ptr [1]);
1144 len = ((b & 0x1f) << 24) |
1157 * mono_metadata_decode_signed_value:
1158 * @ptr: pointer to decode from
1159 * @rptr: the new position of the pointer
1161 * This routine decompresses 32-bit signed values
1162 * (not specified in the spec)
1164 * Returns: the decoded value
1167 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1169 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1170 gint32 ival = uval >> 1;
1173 /* ival is a truncated 2's complement negative number. */
1175 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1178 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1179 return ival - 0x2000;
1180 if (ival < 0x10000000)
1181 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1182 return ival - 0x10000000;
1183 g_assert (ival < 0x20000000);
1184 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1185 return ival - 0x20000000;
1189 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1190 * using the *Ptr tables in uncompressed metadata, if they are available.
1192 * FIXME: The caller is not forced to call this function, which is error-prone, since
1193 * forgetting to call it would only show up as a bug on uncompressed metadata.
1196 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1198 if (!image->uncompressed_metadata)
1202 case MONO_TABLE_METHOD:
1203 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1204 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1207 case MONO_TABLE_FIELD:
1208 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1209 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1212 case MONO_TABLE_EVENT:
1213 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1214 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1217 case MONO_TABLE_PROPERTY:
1218 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1219 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1222 case MONO_TABLE_PARAM:
1223 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1224 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1233 * mono_metadata_decode_table_row:
1235 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1236 * uncompressed metadata into account, so it should be used to access the
1237 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1238 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1241 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1243 if (image->uncompressed_metadata)
1244 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1246 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1250 * mono_metadata_decode_table_row_col:
1252 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1253 * uncompressed metadata into account, so it should be used to access the
1254 * Method, Field, Param and Event tables.
1256 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1258 if (image->uncompressed_metadata)
1259 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1261 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1265 * mono_metadata_parse_typedef_or_ref:
1266 * @m: a metadata context.
1267 * @ptr: a pointer to an encoded TypedefOrRef in @m
1268 * @rptr: pointer updated to match the end of the decoded stream
1270 * Returns: a token valid in the @m metadata decoded from
1271 * the compressed representation.
1274 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1277 token = mono_metadata_decode_value (ptr, &ptr);
1280 return mono_metadata_token_from_dor (token);
1284 * mono_metadata_parse_custom_mod:
1285 * @m: a metadata context.
1286 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1287 * @ptr: a pointer to (possibly) the start of a custom modifier list
1288 * @rptr: pointer updated to match the end of the decoded stream
1290 * Checks if @ptr points to a type custom modifier compressed representation.
1292 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1295 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1297 MonoCustomMod local;
1298 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1301 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1302 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1309 * mono_metadata_parse_array_internal:
1310 * @m: a metadata context.
1311 * @transient: whenever to allocate data from the heap
1312 * @ptr: a pointer to an encoded array description.
1313 * @rptr: pointer updated to match the end of the decoded stream
1315 * Decodes the compressed array description found in the metadata @m at @ptr.
1317 * Returns: a #MonoArrayType structure describing the array type
1318 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1319 * on the value of @transient.
1321 * LOCKING: Acquires the loader lock
1323 static MonoArrayType *
1324 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1325 gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1328 MonoArrayType *array;
1331 etype = mono_metadata_parse_type_checked (m, container, 0, FALSE, ptr, &ptr, error); //FIXME this doesn't respect @transient
1335 array = transient ? g_malloc0 (sizeof (MonoArrayType)) : mono_image_alloc0 (m, sizeof (MonoArrayType));
1336 array->eklass = mono_class_from_mono_type (etype);
1337 array->rank = mono_metadata_decode_value (ptr, &ptr);
1339 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1340 if (array->numsizes)
1341 array->sizes = transient ? g_malloc0 (sizeof (int) * array->numsizes) : mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1342 for (i = 0; i < array->numsizes; ++i)
1343 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1345 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1346 if (array->numlobounds)
1347 array->lobounds = transient ? g_malloc0 (sizeof (int) * array->numlobounds) : mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1348 for (i = 0; i < array->numlobounds; ++i)
1349 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1357 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1358 const char *ptr, const char **rptr)
1361 MonoArrayType *ret = mono_metadata_parse_array_internal (m, container, FALSE, ptr, rptr, &error);
1363 mono_loader_set_error_from_mono_error (&error);
1364 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1370 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1372 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1376 * mono_metadata_free_array:
1377 * @array: array description
1379 * Frees the array description returned from mono_metadata_parse_array().
1382 mono_metadata_free_array (MonoArrayType *array)
1384 g_free (array->sizes);
1385 g_free (array->lobounds);
1390 * need to add common field and param attributes combinations:
1393 * public static literal
1396 * private static literal
1398 static const MonoType
1400 /* data, attrs, type, nmods, byref, pinned */
1401 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1402 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1403 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1404 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1405 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1406 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1407 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1408 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1409 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1410 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1411 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1412 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1413 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1414 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1415 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1416 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1417 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1418 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1419 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1420 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1421 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1422 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1423 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1424 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1425 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1426 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1427 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1428 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1429 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1430 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1431 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1432 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1433 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1434 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1437 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1439 static GHashTable *type_cache = NULL;
1440 static int next_generic_inst_id = 0;
1442 /* Protected by image_sets_mutex */
1443 static MonoImageSet *mscorlib_image_set;
1444 /* Protected by image_sets_mutex */
1445 static GPtrArray *image_sets;
1446 static mono_mutex_t image_sets_mutex;
1448 static guint mono_generic_class_hash (gconstpointer data);
1451 * MonoTypes with modifies are never cached, so we never check or use that field.
1454 mono_type_hash (gconstpointer data)
1456 const MonoType *type = (const MonoType *) data;
1457 if (type->type == MONO_TYPE_GENERICINST)
1458 return mono_generic_class_hash (type->data.generic_class);
1460 return type->type | (type->byref << 8) | (type->attrs << 9);
1464 mono_type_equal (gconstpointer ka, gconstpointer kb)
1466 const MonoType *a = (const MonoType *) ka;
1467 const MonoType *b = (const MonoType *) kb;
1469 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1471 /* need other checks */
1476 mono_metadata_generic_inst_hash (gconstpointer data)
1478 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1482 for (i = 0; i < ginst->type_argc; ++i) {
1484 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1487 return hash ^ (ginst->is_open << 8);
1491 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1495 #ifndef MONO_SMALL_CONFIG
1496 if (a->id && b->id) {
1499 if (!signature_only)
1504 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1506 for (i = 0; i < a->type_argc; ++i) {
1507 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1514 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1516 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1517 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1519 return mono_generic_inst_equal_full (a, b, FALSE);
1523 mono_generic_class_hash (gconstpointer data)
1525 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1526 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1529 hash += gclass->is_tb_open;
1530 hash += mono_metadata_generic_context_hash (&gclass->context);
1536 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1538 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1539 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1541 return _mono_metadata_generic_class_equal (a, b, FALSE);
1545 * mono_metadata_init:
1547 * Initialize the global variables of this module.
1548 * This is a Mono runtime internal function.
1551 mono_metadata_init (void)
1555 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1557 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1558 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1560 mono_os_mutex_init_recursive (&image_sets_mutex);
1564 * mono_metadata_cleanup:
1566 * Free all resources used by this module.
1567 * This is a Mono runtime internal function.
1570 mono_metadata_cleanup (void)
1572 g_hash_table_destroy (type_cache);
1574 g_ptr_array_free (image_sets, TRUE);
1576 mono_os_mutex_destroy (&image_sets_mutex);
1580 * mono_metadata_parse_type:
1581 * @m: metadata context
1582 * @mode: king of type that may be found at @ptr
1583 * @opt_attrs: optional attributes to store in the returned type
1584 * @ptr: pointer to the type representation
1585 * @rptr: pointer updated to match the end of the decoded stream
1586 * @transient: whenever to allocate the result from the heap or from a mempool
1588 * Decode a compressed type description found at @ptr in @m.
1589 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1590 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1591 * This function can be used to decode type descriptions in method signatures,
1592 * field signatures, locals signatures etc.
1594 * To parse a generic type, `generic_container' points to the current class'es
1595 * (the `generic_container' field in the MonoClass) or the current generic method's
1596 * (stored in image->property_hash) generic container.
1597 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1598 * this MonoGenericContainer.
1600 * LOCKING: Acquires the loader lock.
1602 * Returns: a #MonoType structure representing the decoded type.
1605 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container,
1606 short opt_attrs, gboolean transient, const char *ptr, const char **rptr)
1609 MonoType *type, *cached;
1611 gboolean byref = FALSE;
1612 gboolean pinned = FALSE;
1613 const char *tmp_ptr;
1618 * According to the spec, custom modifiers should come before the byref
1619 * flag, but the IL produced by ilasm from the following signature:
1620 * object modopt(...) &
1621 * starts with a byref flag, followed by the modifiers. (bug #49802)
1622 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1623 * it would be better to treat byref as real type constructor instead of
1625 * Also, pinned should come before anything else, but some MSV++ produced
1626 * assemblies violate this (#bug 61990).
1629 /* Count the modifiers first */
1634 case MONO_TYPE_PINNED:
1635 case MONO_TYPE_BYREF:
1638 case MONO_TYPE_CMOD_REQD:
1639 case MONO_TYPE_CMOD_OPT:
1641 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1651 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1652 type = transient ? g_malloc0 (size) : mono_image_alloc0 (m, size);
1653 type->num_mods = count;
1655 g_warning ("got more than 64 modifiers in type");
1658 memset (type, 0, MONO_SIZEOF_TYPE);
1661 /* Parse pinned, byref and custom modifiers */
1666 case MONO_TYPE_PINNED:
1670 case MONO_TYPE_BYREF:
1674 case MONO_TYPE_CMOD_REQD:
1675 case MONO_TYPE_CMOD_OPT:
1676 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1684 type->attrs = opt_attrs;
1685 type->byref = byref;
1686 type->pinned = pinned ? 1 : 0;
1688 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr, &error)) {
1689 mono_loader_set_error_from_mono_error (&error);
1690 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1697 if (!type->num_mods && !transient) {
1698 /* no need to free type here, because it is on the stack */
1699 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1700 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1702 /* Consider the case:
1704 class Foo<T> { class Bar {} }
1705 class Test : Foo<Test>.Bar {}
1707 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1708 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1710 We ensure that the MonoClass is in a state that we can canonicalize to:
1712 klass->byval_arg.data.klass == klass
1713 klass->this_arg.data.klass == klass
1715 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1717 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1718 of a MonoClass which currently holds the loader lock. 'type' is local.
1720 if (ret->data.klass == type->data.klass) {
1724 /* No need to use locking since nobody is modifying the hash table */
1725 if ((cached = g_hash_table_lookup (type_cache, type))) {
1730 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1732 if (type == &stype) {
1733 type = transient ? g_malloc (MONO_SIZEOF_TYPE) : mono_image_alloc (m, MONO_SIZEOF_TYPE);
1734 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1741 mono_metadata_parse_type_checked (MonoImage *m, MonoGenericContainer *container,
1742 short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1746 mono_error_init (error);
1748 ret = mono_metadata_parse_type_internal (m, container, opt_attrs, transient, ptr, rptr);
1751 if (mono_loader_get_last_error ())
1752 mono_error_set_from_loader_error (error);
1754 mono_error_set_bad_image (error, m, "Could not parse type at %p due to unknown reasons", ptr);
1762 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container,
1763 short opt_attrs, const char *ptr, const char **rptr)
1765 return mono_metadata_parse_type_internal (m, container, opt_attrs, FALSE, ptr, rptr);
1769 * LOCKING: Acquires the loader lock.
1772 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1773 const char *ptr, const char **rptr)
1775 return mono_metadata_parse_type_full (m, NULL, opt_attrs, ptr, rptr);
1779 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1781 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1782 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1783 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1785 if (def < methodt->rows)
1786 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1788 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1790 for (i = param_index; i < lastp; ++i) {
1791 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1800 * mono_metadata_get_param_attrs:
1802 * @m The image to loader parameter attributes from
1803 * @def method def token (one based)
1804 * @param_count number of params to decode including the return value
1806 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1807 * returned memory needs to be freed by the caller. If all the param attributes are
1808 * 0, then NULL is returned.
1811 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1813 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1814 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1815 guint32 cols [MONO_PARAM_SIZE];
1816 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1819 if (def < methodt->rows)
1820 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1822 lastp = paramt->rows + 1;
1824 for (i = param_index; i < lastp; ++i) {
1825 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1826 if (cols [MONO_PARAM_FLAGS]) {
1828 pattrs = g_new0 (int, param_count);
1829 /* at runtime we just ignore this kind of malformed file:
1830 * the verifier can signal the error to the user
1832 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1834 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1843 * mono_metadata_parse_signature:
1844 * @image: metadata context
1845 * @toke: metadata token
1847 * Decode a method signature stored in the STANDALONESIG table
1849 * Returns: a MonoMethodSignature describing the signature.
1851 MonoMethodSignature*
1852 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1855 MonoMethodSignature *ret;
1856 MonoTableInfo *tables = image->tables;
1857 guint32 idx = mono_metadata_token_index (token);
1861 if (image_is_dynamic (image))
1862 return mono_lookup_dynamic_token (image, token, NULL);
1864 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1866 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1868 ptr = mono_metadata_blob_heap (image, sig);
1869 mono_metadata_decode_blob_size (ptr, &ptr);
1871 ret = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, &error);
1872 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1877 * mono_metadata_signature_alloc:
1878 * @image: metadata context
1879 * @nparmas: number of parameters in the signature
1881 * Allocate a MonoMethodSignature structure with the specified number of params.
1882 * The return type and the params types need to be filled later.
1883 * This is a Mono runtime internal function.
1885 * LOCKING: Assumes the loader lock is held.
1887 * Returns: the new MonoMethodSignature structure.
1889 MonoMethodSignature*
1890 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1892 MonoMethodSignature *sig;
1894 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1895 sig->param_count = nparams;
1896 sig->sentinelpos = -1;
1901 static MonoMethodSignature*
1902 mono_metadata_signature_dup_internal_with_padding (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig, size_t padding)
1904 int sigsize, sig_header_size;
1905 MonoMethodSignature *ret;
1906 sigsize = sig_header_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *) + padding;
1908 sigsize += MONO_SIZEOF_TYPE;
1911 ret = mono_image_alloc (image, sigsize);
1913 ret = mono_mempool_alloc (mp, sigsize);
1915 ret = g_malloc (sigsize);
1918 memcpy (ret, sig, sig_header_size - padding);
1920 // Copy return value because of ownership semantics.
1922 // Danger! Do not alter padding use without changing the dup_add_this below
1923 intptr_t end_of_header = (intptr_t)( (char*)(ret) + sig_header_size);
1924 ret->ret = (MonoType *)end_of_header;
1925 memcpy (ret->ret, sig->ret, MONO_SIZEOF_TYPE);
1931 static MonoMethodSignature*
1932 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1934 return mono_metadata_signature_dup_internal_with_padding (image, mp, sig, 0);
1937 * signature_dup_add_this:
1939 * Make a copy of @sig, adding an explicit this argument.
1941 MonoMethodSignature*
1942 mono_metadata_signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
1944 MonoMethodSignature *ret;
1945 ret = mono_metadata_signature_dup_internal_with_padding (image, NULL, sig, sizeof (MonoType *));
1947 ret->param_count = sig->param_count + 1;
1948 ret->hasthis = FALSE;
1950 for (int i = sig->param_count - 1; i >= 0; i --)
1951 ret->params [i + 1] = sig->params [i];
1952 ret->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
1954 for (int i = sig->param_count - 1; i >= 0; i --)
1955 g_assert(ret->params [i + 1]->type == sig->params [i]->type && ret->params [i+1]->type != MONO_TYPE_END);
1956 g_assert (ret->ret->type == sig->ret->type && ret->ret->type != MONO_TYPE_END);
1963 MonoMethodSignature*
1964 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1966 MonoMethodSignature *ret = mono_metadata_signature_dup_internal (image, NULL, sig);
1968 for (int i = 0 ; i < sig->param_count; i ++)
1969 g_assert(ret->params [i]->type == sig->params [i]->type);
1970 g_assert (ret->ret->type == sig->ret->type);
1975 /*The mempool is accessed without synchronization*/
1976 MonoMethodSignature*
1977 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1979 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1983 * mono_metadata_signature_dup:
1984 * @sig: method signature
1986 * Duplicate an existing MonoMethodSignature so it can be modified.
1987 * This is a Mono runtime internal function.
1989 * Returns: the new MonoMethodSignature structure.
1991 MonoMethodSignature*
1992 mono_metadata_signature_dup (MonoMethodSignature *sig)
1994 return mono_metadata_signature_dup_full (NULL, sig);
1998 * mono_metadata_signature_size:
2000 * Return the amount of memory allocated to SIG.
2003 mono_metadata_signature_size (MonoMethodSignature *sig)
2005 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
2009 * mono_metadata_parse_method_signature:
2010 * @m: metadata context
2011 * @generic_container: generics container
2012 * @def: the MethodDef index or 0 for Ref signatures.
2013 * @ptr: pointer to the signature metadata representation
2014 * @rptr: pointer updated to match the end of the decoded stream
2016 * Decode a method signature stored at @ptr.
2017 * This is a Mono runtime internal function.
2019 * LOCKING: Assumes the loader lock is held.
2021 * Returns: a MonoMethodSignature describing the signature.
2023 MonoMethodSignature *
2024 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
2025 int def, const char *ptr, const char **rptr, MonoError *error)
2027 MonoMethodSignature *method;
2028 int i, *pattrs = NULL;
2029 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
2030 guint32 gen_param_count = 0;
2031 gboolean is_open = FALSE;
2033 mono_error_init (error);
2036 gen_param_count = 1;
2041 call_convention = *ptr & 0x0F;
2043 if (gen_param_count)
2044 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
2045 param_count = mono_metadata_decode_value (ptr, &ptr);
2048 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 */
2050 method = mono_metadata_signature_alloc (m, param_count);
2051 method->hasthis = hasthis;
2052 method->explicit_this = explicit_this;
2053 method->call_convention = call_convention;
2054 method->generic_param_count = gen_param_count;
2056 if (call_convention != 0xa) {
2057 method->ret = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [0] : 0, FALSE, ptr, &ptr, error);
2059 mono_metadata_free_method_signature (method);
2063 is_open = mono_class_is_open_constructed_type (method->ret);
2066 for (i = 0; i < method->param_count; ++i) {
2067 if (*ptr == MONO_TYPE_SENTINEL) {
2068 if (method->call_convention != MONO_CALL_VARARG || def) {
2069 mono_loader_assert_no_error ();
2070 mono_error_set_bad_image (error, m, "Found sentinel for methoddef or no vararg");
2074 if (method->sentinelpos >= 0) {
2075 mono_loader_assert_no_error ();
2076 mono_error_set_bad_image (error, m, "Found sentinel twice in the same signature.");
2080 method->sentinelpos = i;
2083 method->params [i] = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [i+1] : 0, FALSE, ptr, &ptr, error);
2084 if (!method->params [i]) {
2085 mono_metadata_free_method_signature (method);
2090 is_open = mono_class_is_open_constructed_type (method->params [i]);
2093 /* The sentinel could be missing if the caller does not pass any additional arguments */
2094 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
2095 method->sentinelpos = method->param_count;
2097 method->has_type_parameters = is_open;
2099 if (def && (method->call_convention == MONO_CALL_VARARG))
2100 method->sentinelpos = method->param_count;
2107 * Add signature to a cache and increase ref count...
2110 mono_loader_assert_no_error ();
2115 * mono_metadata_parse_method_signature:
2116 * @m: metadata context
2117 * @def: the MethodDef index or 0 for Ref signatures.
2118 * @ptr: pointer to the signature metadata representation
2119 * @rptr: pointer updated to match the end of the decoded stream
2121 * Decode a method signature stored at @ptr.
2122 * This is a Mono runtime internal function.
2124 * LOCKING: Assumes the loader lock is held.
2126 * Returns: a MonoMethodSignature describing the signature.
2128 MonoMethodSignature *
2129 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
2132 * This function MUST NOT be called by runtime code as it does error handling incorrectly.
2133 * Use mono_metadata_parse_method_signature_full instead.
2134 * It's ok to asser on failure as we no longer use it.
2137 MonoMethodSignature *ret;
2138 ret = mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr, &error);
2139 g_assert (mono_error_ok (&error));
2145 * mono_metadata_free_method_signature:
2146 * @sig: signature to destroy
2148 * Free the memory allocated in the signature @sig.
2149 * This method needs to be robust and work also on partially-built
2150 * signatures, so it does extra checks.
2153 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2155 /* Everything is allocated from mempools */
2159 mono_metadata_free_type (sig->ret);
2160 for (i = 0; i < sig->param_count; ++i) {
2161 if (sig->params [i])
2162 mono_metadata_free_type (sig->params [i]);
2168 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2172 /* Allocated in inflate_generic_signature () */
2174 mono_metadata_free_type (sig->ret);
2175 for (i = 0; i < sig->param_count; ++i) {
2176 if (sig->params [i])
2177 mono_metadata_free_type (sig->params [i]);
2183 inflated_method_equal (gconstpointer a, gconstpointer b)
2185 const MonoMethodInflated *ma = a;
2186 const MonoMethodInflated *mb = b;
2187 if (ma->declaring != mb->declaring)
2189 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2193 inflated_method_hash (gconstpointer a)
2195 const MonoMethodInflated *ma = a;
2196 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring));
2200 inflated_signature_equal (gconstpointer a, gconstpointer b)
2202 const MonoInflatedMethodSignature *sig1 = a;
2203 const MonoInflatedMethodSignature *sig2 = b;
2205 /* sig->sig is assumed to be canonized */
2206 if (sig1->sig != sig2->sig)
2208 /* The generic instances are canonized */
2209 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2213 inflated_signature_hash (gconstpointer a)
2215 const MonoInflatedMethodSignature *sig = a;
2217 /* sig->sig is assumed to be canonized */
2218 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2222 dump_ginst (MonoGenericInst *ginst)
2227 g_print ("Ginst: <");
2228 for (i = 0; i < ginst->type_argc; ++i) {
2231 name = mono_type_get_name (ginst->type_argv [i]);
2232 g_print ("%s", name);
2238 static gboolean type_in_image (MonoType *type, MonoImage *image);
2241 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2243 gpointer iter = NULL;
2246 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2247 if (type_in_image (p, image))
2250 return type_in_image (mono_signature_get_return_type (sig), image);
2254 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2258 for (i = 0; i < ginst->type_argc; ++i) {
2259 if (type_in_image (ginst->type_argv [i], image))
2267 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2269 return gclass->container_class->image == image ||
2270 ginst_in_image (gclass->context.class_inst, image);
2274 type_in_image (MonoType *type, MonoImage *image)
2277 switch (type->type) {
2278 case MONO_TYPE_GENERICINST:
2279 return gclass_in_image (type->data.generic_class, image);
2281 type = type->data.type;
2283 case MONO_TYPE_SZARRAY:
2284 type = &type->data.klass->byval_arg;
2286 case MONO_TYPE_ARRAY:
2287 type = &type->data.array->eklass->byval_arg;
2289 case MONO_TYPE_FNPTR:
2290 return signature_in_image (type->data.method, image);
2291 case MONO_TYPE_VAR: {
2292 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2294 g_assert (!container->is_method);
2296 * FIXME: The following check is here solely
2297 * for monodis, which uses the internal
2299 * mono_metadata_load_generic_params(). The
2300 * caller of that function needs to fill in
2301 * owner->klass or owner->method of the
2302 * returned struct, but monodis doesn't do
2303 * that. The image unloading depends on that,
2304 * however, so a crash results without this
2307 if (!container->owner.klass)
2308 return container->image == image;
2309 return container->owner.klass->image == image;
2311 return type->data.generic_param->image == image;
2314 case MONO_TYPE_MVAR: {
2315 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2316 if (type->data.generic_param->image == image)
2319 g_assert (container->is_method);
2320 if (!container->owner.method)
2321 /* RefEmit created generic param whose method is not finished */
2322 return container->image == image;
2323 return container->owner.method->klass->image == image;
2325 return type->data.generic_param->image == image;
2329 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2330 return image == mono_class_from_mono_type (type)->image;
2335 image_sets_lock (void)
2337 mono_os_mutex_lock (&image_sets_mutex);
2341 image_sets_unlock (void)
2343 mono_os_mutex_unlock (&image_sets_mutex);
2349 * Return a MonoImageSet representing the set of images in IMAGES.
2351 static MonoImageSet*
2352 get_image_set (MonoImage **images, int nimages)
2359 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2360 return mscorlib_image_set;
2362 /* Happens with empty generic instances */
2364 return mscorlib_image_set;
2369 image_sets = g_ptr_array_new ();
2371 if (images [0] == mono_defaults.corlib && nimages > 1)
2372 l = images [1]->image_sets;
2374 l = images [0]->image_sets;
2377 for (; l; l = l->next) {
2380 if (set->nimages == nimages) {
2381 for (j = 0; j < nimages; ++j) {
2382 for (k = 0; k < nimages; ++k)
2383 if (set->images [k] == images [j])
2397 set = g_new0 (MonoImageSet, 1);
2398 set->nimages = nimages;
2399 set->images = g_new0 (MonoImage*, nimages);
2400 mono_os_mutex_init_recursive (&set->lock);
2401 for (i = 0; i < nimages; ++i)
2402 set->images [i] = images [i];
2403 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2404 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2405 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2406 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2408 for (i = 0; i < nimages; ++i)
2409 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2411 g_ptr_array_add (image_sets, set);
2414 if (nimages == 1 && images [0] == mono_defaults.corlib) {
2415 mono_memory_barrier ();
2416 mscorlib_image_set = set;
2419 image_sets_unlock ();
2425 delete_image_set (MonoImageSet *set)
2429 g_hash_table_destroy (set->gclass_cache);
2430 g_hash_table_destroy (set->ginst_cache);
2431 g_hash_table_destroy (set->gmethod_cache);
2432 g_hash_table_destroy (set->gsignature_cache);
2434 mono_wrapper_caches_free (&set->wrapper_caches);
2438 for (i = 0; i < set->nimages; ++i)
2439 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2441 g_ptr_array_remove (image_sets, set);
2443 image_sets_unlock ();
2446 mono_mempool_destroy (set->mempool);
2447 g_free (set->images);
2448 mono_os_mutex_destroy (&set->lock);
2453 mono_image_set_lock (MonoImageSet *set)
2455 mono_os_mutex_lock (&set->lock);
2459 mono_image_set_unlock (MonoImageSet *set)
2461 mono_os_mutex_unlock (&set->lock);
2465 mono_image_set_alloc (MonoImageSet *set, guint size)
2469 mono_image_set_lock (set);
2471 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2472 res = mono_mempool_alloc (set->mempool, size);
2473 mono_image_set_unlock (set);
2479 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2483 mono_image_set_lock (set);
2485 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2486 res = mono_mempool_alloc0 (set->mempool, size);
2487 mono_image_set_unlock (set);
2493 mono_image_set_strdup (MonoImageSet *set, const char *s)
2497 mono_image_set_lock (set);
2499 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2500 res = mono_mempool_strdup (set->mempool, s);
2501 mono_image_set_unlock (set);
2507 * Structure used by the collect_..._images functions to store the image list.
2510 MonoImage *image_buf [64];
2512 int nimages, images_len;
2516 collect_data_init (CollectData *data)
2518 data->images = data->image_buf;
2519 data->images_len = 64;
2524 collect_data_free (CollectData *data)
2526 if (data->images != data->image_buf)
2527 g_free (data->images);
2531 enlarge_data (CollectData *data)
2533 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2534 MonoImage **d = g_new (MonoImage *, new_len);
2537 g_assert_not_reached ();
2538 memcpy (d, data->images, data->images_len);
2539 if (data->images != data->image_buf)
2540 g_free (data->images);
2542 data->images_len = new_len;
2546 add_image (MonoImage *image, CollectData *data)
2550 /* The arrays are small, so use a linear search instead of a hash table */
2551 for (i = 0; i < data->nimages; ++i)
2552 if (data->images [i] == image)
2555 if (data->nimages == data->images_len)
2556 enlarge_data (data);
2558 data->images [data->nimages ++] = image;
2562 collect_type_images (MonoType *type, CollectData *data);
2565 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2569 for (i = 0; i < ginst->type_argc; ++i) {
2570 collect_type_images (ginst->type_argv [i], data);
2575 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2577 add_image (gclass->container_class->image, data);
2578 if (gclass->context.class_inst)
2579 collect_ginst_images (gclass->context.class_inst, data);
2583 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2585 gpointer iter = NULL;
2588 collect_type_images (mono_signature_get_return_type (sig), data);
2589 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2590 collect_type_images (p, data);
2594 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2596 collect_signature_images (sig->sig, data);
2597 if (sig->context.class_inst)
2598 collect_ginst_images (sig->context.class_inst, data);
2599 if (sig->context.method_inst)
2600 collect_ginst_images (sig->context.method_inst, data);
2604 collect_method_images (MonoMethodInflated *method, CollectData *data)
2606 MonoMethod *m = method->declaring;
2608 add_image (method->declaring->klass->image, data);
2609 if (method->context.class_inst)
2610 collect_ginst_images (method->context.class_inst, data);
2611 if (method->context.method_inst)
2612 collect_ginst_images (method->context.method_inst, data);
2614 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2616 if (image_is_dynamic (m->klass->image))
2617 collect_signature_images (mono_method_signature (m), data);
2621 collect_type_images (MonoType *type, CollectData *data)
2624 switch (type->type) {
2625 case MONO_TYPE_GENERICINST:
2626 collect_gclass_images (type->data.generic_class, data);
2629 type = type->data.type;
2631 case MONO_TYPE_SZARRAY:
2632 type = &type->data.klass->byval_arg;
2634 case MONO_TYPE_ARRAY:
2635 type = &type->data.array->eklass->byval_arg;
2637 case MONO_TYPE_FNPTR:
2638 //return signature_in_image (type->data.method, image);
2639 g_assert_not_reached ();
2640 case MONO_TYPE_VAR: {
2641 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2643 g_assert (!container->is_method);
2645 * FIXME: The following check is here solely
2646 * for monodis, which uses the internal
2648 * mono_metadata_load_generic_params(). The
2649 * caller of that function needs to fill in
2650 * owner->klass or owner->method of the
2651 * returned struct, but monodis doesn't do
2652 * that. The image unloading depends on that,
2653 * however, so a crash results without this
2656 if (!container->owner.klass)
2657 add_image (container->image, data);
2659 add_image (container->owner.klass->image, data);
2661 add_image (type->data.generic_param->image, data);
2665 case MONO_TYPE_MVAR: {
2666 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2667 if (type->data.generic_param->image)
2668 add_image (type->data.generic_param->image, data);
2670 if (!container->owner.method) {
2671 /* RefEmit created generic param whose method is not finished */
2672 add_image (container->image, data);
2674 g_assert (container->is_method);
2675 add_image (container->owner.method->klass->image, data);
2678 add_image (type->data.generic_param->image, data);
2682 case MONO_TYPE_CLASS:
2683 case MONO_TYPE_VALUETYPE:
2684 add_image (mono_class_from_mono_type (type)->image, data);
2687 add_image (mono_defaults.corlib, data);
2694 } CleanForImageUserData;
2697 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2699 MonoGenericClass *gclass = key;
2700 CleanForImageUserData *user_data = data;
2702 g_assert (gclass_in_image (gclass, user_data->image));
2704 user_data->list = g_slist_prepend (user_data->list, gclass);
2709 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2711 MonoGenericInst *ginst = key;
2712 CleanForImageUserData *user_data = data;
2714 // This doesn't work during corlib compilation
2715 //g_assert (ginst_in_image (ginst, user_data->image));
2717 user_data->list = g_slist_prepend (user_data->list, ginst);
2722 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2724 MonoImage *image = data;
2725 MonoMethodInflated *method = key;
2728 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2729 g_assert (method->declaring->klass->image == image ||
2730 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2731 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2737 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2739 MonoImage *image = data;
2740 MonoInflatedMethodSignature *sig = key;
2742 return signature_in_image (sig->sig, image) ||
2743 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2744 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2748 check_gmethod (gpointer key, gpointer value, gpointer data)
2750 MonoMethodInflated *method = key;
2751 MonoImage *image = data;
2753 if (method->context.class_inst)
2754 g_assert (!ginst_in_image (method->context.class_inst, image));
2755 if (method->context.method_inst)
2756 g_assert (!ginst_in_image (method->context.method_inst, image));
2757 if (((MonoMethod*)method)->signature)
2758 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2764 * Run a consistency check on the image set data structures.
2766 static G_GNUC_UNUSED void
2767 check_image_sets (MonoImage *image)
2770 GSList *l = image->image_sets;
2775 for (i = 0; i < image_sets->len; ++i) {
2776 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2778 if (!g_slist_find (l, set)) {
2779 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2785 mono_metadata_clean_for_image (MonoImage *image)
2787 CleanForImageUserData ginst_data, gclass_data;
2788 GSList *l, *set_list;
2790 //check_image_sets (image);
2793 * The data structures could reference each other so we delete them in two phases.
2794 * This is required because of the hashing functions in gclass/ginst_cache.
2796 ginst_data.image = gclass_data.image = image;
2797 ginst_data.list = gclass_data.list = NULL;
2799 /* Collect the items to delete */
2800 /* delete_image_set () modifies the lists so make a copy */
2801 for (l = image->image_sets; l; l = l->next) {
2802 MonoImageSet *set = l->data;
2804 mono_image_set_lock (set);
2805 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2806 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2807 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2808 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2809 mono_image_set_unlock (set);
2812 /* Delete the removed items */
2813 for (l = ginst_data.list; l; l = l->next)
2814 free_generic_inst (l->data);
2815 for (l = gclass_data.list; l; l = l->next)
2816 free_generic_class (l->data);
2817 g_slist_free (ginst_data.list);
2818 g_slist_free (gclass_data.list);
2819 /* delete_image_set () modifies the lists so make a copy */
2820 set_list = g_slist_copy (image->image_sets);
2821 for (l = set_list; l; l = l->next) {
2822 MonoImageSet *set = l->data;
2824 delete_image_set (set);
2826 g_slist_free (set_list);
2830 free_inflated_method (MonoMethodInflated *imethod)
2833 MonoMethod *method = (MonoMethod*)imethod;
2835 if (method->signature)
2836 mono_metadata_free_inflated_signature (method->signature);
2838 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))) {
2839 MonoMethodHeader *header = imethod->header;
2842 /* Allocated in inflate_generic_header () */
2843 for (i = 0; i < header->num_locals; ++i)
2844 mono_metadata_free_type (header->locals [i]);
2845 g_free (header->clauses);
2854 free_generic_inst (MonoGenericInst *ginst)
2858 /* The ginst itself is allocated from the image set mempool */
2859 for (i = 0; i < ginst->type_argc; ++i)
2860 mono_metadata_free_type (ginst->type_argv [i]);
2864 free_generic_class (MonoGenericClass *gclass)
2866 /* The gclass itself is allocated from the image set mempool */
2867 if (gclass->is_dynamic)
2868 mono_reflection_free_dynamic_generic_class (gclass);
2869 if (gclass->cached_class && gclass->cached_class->interface_id)
2870 mono_unload_interface_id (gclass->cached_class);
2874 free_inflated_signature (MonoInflatedMethodSignature *sig)
2876 mono_metadata_free_inflated_signature (sig->sig);
2881 * mono_metadata_get_inflated_signature:
2883 * Given an inflated signature and a generic context, return a canonical copy of the
2884 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2886 MonoMethodSignature *
2887 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2889 MonoInflatedMethodSignature helper;
2890 MonoInflatedMethodSignature *res;
2895 helper.context.class_inst = context->class_inst;
2896 helper.context.method_inst = context->method_inst;
2898 collect_data_init (&data);
2900 collect_inflated_signature_images (&helper, &data);
2902 set = get_image_set (data.images, data.nimages);
2904 collect_data_free (&data);
2906 mono_image_set_lock (set);
2908 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2910 res = g_new0 (MonoInflatedMethodSignature, 1);
2912 res->context.class_inst = context->class_inst;
2913 res->context.method_inst = context->method_inst;
2914 g_hash_table_insert (set->gsignature_cache, res, res);
2917 mono_image_set_unlock (set);
2923 mono_metadata_get_image_set_for_method (MonoMethodInflated *method)
2926 CollectData image_set_data;
2928 collect_data_init (&image_set_data);
2929 collect_method_images (method, &image_set_data);
2930 set = get_image_set (image_set_data.images, image_set_data.nimages);
2931 collect_data_free (&image_set_data);
2937 * mono_metadata_get_generic_inst:
2939 * Given a list of types, return a MonoGenericInst that represents that list.
2940 * The returned MonoGenericInst has its own copy of the list of types. The list
2941 * passed in the argument can be freed, modified or disposed of.
2945 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2947 MonoGenericInst *ginst;
2950 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2954 for (i = 0; i < type_argc; ++i)
2955 if (mono_class_is_open_constructed_type (type_argv [i]))
2957 is_open = (i < type_argc);
2959 ginst = g_alloca (size);
2960 memset (ginst, 0, sizeof (MonoGenericInst));
2961 ginst->is_open = is_open;
2962 ginst->type_argc = type_argc;
2963 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2965 collect_data_init (&data);
2967 collect_ginst_images (ginst, &data);
2969 set = get_image_set (data.images, data.nimages);
2971 collect_data_free (&data);
2973 mono_image_set_lock (set);
2975 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2977 ginst = mono_image_set_alloc0 (set, size);
2978 #ifndef MONO_SMALL_CONFIG
2979 ginst->id = ++next_generic_inst_id;
2981 ginst->is_open = is_open;
2982 ginst->type_argc = type_argc;
2984 for (i = 0; i < type_argc; ++i)
2985 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2987 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2990 mono_image_set_unlock (set);
2995 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2997 MonoGenericContainer *container = container_class->generic_container;
2999 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
3001 return inst == container->context.class_inst;
3005 * mono_metadata_lookup_generic_class:
3007 * Returns a MonoGenericClass with the given properties.
3011 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
3013 MonoGenericClass *gclass;
3014 MonoGenericClass helper;
3015 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
3019 helper.container_class = container_class;
3020 helper.context.class_inst = inst;
3021 helper.context.method_inst = NULL;
3022 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
3023 helper.is_tb_open = is_tb_open;
3024 helper.cached_class = NULL;
3026 collect_data_init (&data);
3028 collect_gclass_images (&helper, &data);
3030 set = get_image_set (data.images, data.nimages);
3032 collect_data_free (&data);
3034 mono_image_set_lock (set);
3036 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
3038 /* A tripwire just to keep us honest */
3039 g_assert (!helper.cached_class);
3042 mono_image_set_unlock (set);
3047 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
3048 gclass = &dgclass->generic_class;
3049 gclass->is_dynamic = 1;
3051 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
3054 gclass->is_tb_open = is_tb_open;
3055 gclass->container_class = container_class;
3056 gclass->context.class_inst = inst;
3057 gclass->context.method_inst = NULL;
3058 gclass->owner = set;
3059 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
3060 gclass->cached_class = container_class;
3062 g_hash_table_insert (set->gclass_cache, gclass, gclass);
3064 mono_image_set_unlock (set);
3070 * mono_metadata_inflate_generic_inst:
3072 * Instantiate the generic instance @ginst with the context @context.
3073 * Check @error for success.
3077 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
3079 MonoType **type_argv;
3080 MonoGenericInst *nginst = NULL;
3083 mono_error_init (error);
3085 if (!ginst->is_open)
3088 type_argv = g_new0 (MonoType*, ginst->type_argc);
3090 for (i = 0; i < ginst->type_argc; i++) {
3091 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
3092 if (!mono_error_ok (error))
3097 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
3100 for (i = 0; i < count; i++)
3101 mono_metadata_free_type (type_argv [i]);
3108 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
3109 int count, const char *ptr, const char **rptr, MonoError *error)
3111 MonoType **type_argv;
3112 MonoGenericInst *ginst;
3115 mono_error_init (error);
3116 type_argv = g_new0 (MonoType*, count);
3118 for (i = 0; i < count; i++) {
3119 MonoType *t = mono_metadata_parse_type_checked (m, container, 0, FALSE, ptr, &ptr, error);
3130 ginst = mono_metadata_get_generic_inst (count, type_argv);
3138 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3139 const char *ptr, const char **rptr, MonoError *error)
3141 MonoGenericInst *inst;
3146 mono_error_init (error);
3148 // XXX how about transient?
3149 gtype = mono_metadata_parse_type_checked (m, NULL, 0, FALSE, ptr, &ptr, error);
3153 gklass = mono_class_from_mono_type (gtype);
3154 if (!gklass->generic_container) {
3155 mono_error_set_bad_image (error, m, "Generic instance with non-generic definition");
3159 count = mono_metadata_decode_value (ptr, &ptr);
3160 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr, error);
3167 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3173 * @gc: The generic container to normalize
3174 * @type: The kind of generic parameters the resulting generic-container should contain
3177 static MonoGenericContainer *
3178 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3180 gboolean is_var = (type == MONO_TYPE_VAR);
3184 g_assert (is_var || type == MONO_TYPE_MVAR);
3187 if (gc->is_method || gc->parent)
3189 * The current MonoGenericContainer is a generic method -> its `parent'
3190 * points to the containing class'es container.
3199 * mono_metadata_parse_generic_param:
3200 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3201 * see mono_metadata_parse_type_full() for details.
3202 * Internal routine to parse a generic type parameter.
3203 * LOCKING: Acquires the loader lock
3205 static MonoGenericParam *
3206 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3207 MonoTypeEnum type, const char *ptr, const char **rptr, MonoError *error)
3209 int index = mono_metadata_decode_value (ptr, &ptr);
3213 mono_error_init (error);
3215 generic_container = select_container (generic_container, type);
3216 if (!generic_container) {
3217 /* Create dummy MonoGenericParam */
3218 MonoGenericParam *param;
3220 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3227 if (index >= generic_container->type_argc) {
3228 mono_error_set_bad_image (error, m, "Invalid generic %s parameter index %d, max index is %d",
3229 generic_container->is_method ? "method" : "type",
3230 index, generic_container->type_argc);
3234 //This can't return NULL
3235 return mono_generic_container_get_param (generic_container, index);
3239 * mono_metadata_get_shared_type:
3241 * Return a shared instance of TYPE, if available, NULL otherwise.
3242 * Shared MonoType instances help save memory. Their contents should not be modified
3243 * by the caller. They do not need to be freed as their lifetime is bound by either
3244 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3245 * instance they are embedded in. If they are freed, they should be freed using
3246 * mono_metadata_free_type () instead of g_free ().
3249 mono_metadata_get_shared_type (MonoType *type)
3253 /* No need to use locking since nobody is modifying the hash table */
3254 if ((cached = g_hash_table_lookup (type_cache, type)))
3257 switch (type->type){
3258 case MONO_TYPE_CLASS:
3259 case MONO_TYPE_VALUETYPE:
3260 if (type == &type->data.klass->byval_arg)
3262 if (type == &type->data.klass->this_arg)
3273 compare_type_literals (MonoImage *image, int class_type, int type_type, MonoError *error)
3275 mono_error_init (error);
3277 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3278 * See mcs/test/gtest-440. and #650936.
3279 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3283 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3286 if (class_type == type_type)
3289 if (type_type == MONO_TYPE_CLASS) {
3290 if (class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT)
3292 //XXX stringify this argument
3293 mono_error_set_bad_image (error, image, "Expected reference type but got type kind %d", class_type);
3297 g_assert (type_type == MONO_TYPE_VALUETYPE);
3298 switch (class_type) {
3299 case MONO_TYPE_BOOLEAN:
3300 case MONO_TYPE_CHAR:
3313 case MONO_TYPE_CLASS:
3316 //XXX stringify this argument
3317 mono_error_set_bad_image (error, image, "Expected value type but got type kind %d", class_type);
3323 verify_var_type_and_container (MonoImage *image, int var_type, MonoGenericContainer *container, MonoError *error)
3325 mono_error_init (error);
3326 if (var_type == MONO_TYPE_MVAR) {
3327 if (!container->is_method) { //MVAR and a method container
3328 mono_error_set_bad_image (error, image, "MVAR parsed in a context without a method container");
3332 if (!(!container->is_method || //VAR and class container
3333 (container->is_method && container->parent))) { //VAR and method container with parent
3334 mono_error_set_bad_image (error, image, "VAR parsed in a context without a class container");
3342 * do_mono_metadata_parse_type:
3343 * @type: MonoType to be filled in with the return value
3345 * @generic_context: generics_context
3346 * @transient: whenever to allocate data from the heap
3347 * @ptr: pointer to the encoded type
3348 * @rptr: pointer where the end of the encoded type is saved
3350 * Internal routine used to "fill" the contents of @type from an
3351 * allocated pointer. This is done this way to avoid doing too
3352 * many mini-allocations (particularly for the MonoFieldType which
3353 * most of the time is just a MonoType, but sometimes might be augmented).
3355 * This routine is used by mono_metadata_parse_type and
3356 * mono_metadata_parse_field_type
3358 * This extracts a Type as specified in Partition II (22.2.12)
3360 * Returns: FALSE if the type could not be loaded
3363 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3364 gboolean transient, const char *ptr, const char **rptr, MonoError *error)
3366 mono_error_init (error);
3368 type->type = mono_metadata_decode_value (ptr, &ptr);
3370 switch (type->type){
3371 case MONO_TYPE_VOID:
3372 case MONO_TYPE_BOOLEAN:
3373 case MONO_TYPE_CHAR:
3386 case MONO_TYPE_STRING:
3387 case MONO_TYPE_OBJECT:
3388 case MONO_TYPE_TYPEDBYREF:
3390 case MONO_TYPE_VALUETYPE:
3391 case MONO_TYPE_CLASS: {
3394 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3395 klass = mono_class_get_checked (m, token, error);
3396 type->data.klass = klass;
3400 if (!compare_type_literals (m, klass->byval_arg.type, type->type, error))
3405 case MONO_TYPE_SZARRAY: {
3406 MonoType *etype = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3410 type->data.klass = mono_class_from_mono_type (etype);
3411 g_assert (type->data.klass); //This was previously a check for NULL, but mcfmt should never fail. It can return a borken MonoClass, but should return at least something.
3414 case MONO_TYPE_PTR: {
3415 type->data.type = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3416 if (!type->data.type)
3420 case MONO_TYPE_FNPTR: {
3421 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr, error);
3422 if (!type->data.method)
3426 case MONO_TYPE_ARRAY: {
3427 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr, error);
3428 if (!type->data.array)
3432 case MONO_TYPE_MVAR:
3433 case MONO_TYPE_VAR: {
3434 if (container && !verify_var_type_and_container (m, type->type, container, error))
3437 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr, error);
3438 if (!type->data.generic_param)
3443 case MONO_TYPE_GENERICINST: {
3444 if (!do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr, error))
3449 mono_error_set_bad_image (error, m, "type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3459 * mono_metadata_free_type:
3460 * @type: type to free
3462 * Free the memory allocated for type @type which is allocated on the heap.
3465 mono_metadata_free_type (MonoType *type)
3467 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3470 switch (type->type){
3471 case MONO_TYPE_OBJECT:
3472 case MONO_TYPE_STRING:
3473 if (!type->data.klass)
3476 case MONO_TYPE_CLASS:
3477 case MONO_TYPE_VALUETYPE:
3478 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3482 mono_metadata_free_type (type->data.type);
3484 case MONO_TYPE_FNPTR:
3485 mono_metadata_free_method_signature (type->data.method);
3487 case MONO_TYPE_ARRAY:
3488 mono_metadata_free_array (type->data.array);
3499 hex_dump (const char *buffer, int base, int count)
3501 int show_header = 1;
3509 for (i = 0; i < count; i++){
3512 printf ("\n0x%08x: ", (unsigned char) base + i);
3514 printf ("%02x ", (unsigned char) (buffer [i]));
3521 * @ptr: Points to the beginning of the Section Data (25.3)
3523 static MonoExceptionClause*
3524 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3526 unsigned char sect_data_flags;
3528 guint32 sect_data_len;
3529 MonoExceptionClause* clauses = NULL;
3532 /* align on 32-bit boundary */
3533 ptr = dword_align (ptr);
3534 sect_data_flags = *ptr;
3537 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3539 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3542 sect_data_len = ptr [0];
3546 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3547 const unsigned char *p = dword_align (ptr);
3549 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3550 /* we could just store a pointer if we don't need to byteswap */
3551 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3552 for (i = 0; i < *num_clauses; ++i) {
3553 MonoExceptionClause *ec = &clauses [i];
3556 ec->flags = read32 (p);
3557 ec->try_offset = read32 (p + 4);
3558 ec->try_len = read32 (p + 8);
3559 ec->handler_offset = read32 (p + 12);
3560 ec->handler_len = read32 (p + 16);
3561 tof_value = read32 (p + 20);
3564 ec->flags = read16 (p);
3565 ec->try_offset = read16 (p + 2);
3566 ec->try_len = *(p + 4);
3567 ec->handler_offset = read16 (p + 5);
3568 ec->handler_len = *(p + 7);
3569 tof_value = read32 (p + 8);
3572 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3573 ec->data.filter_offset = tof_value;
3574 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3575 ec->data.catch_class = NULL;
3578 ec->data.catch_class = mono_class_get_checked (m, tof_value, &error);
3579 if (!mono_error_ok (&error)) {
3580 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3586 ec->data.catch_class = NULL;
3588 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3592 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3593 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3600 * mono_method_get_header_summary:
3601 * @method: The method to get the header.
3602 * @summary: Where to store the header
3605 * Returns: true if the header was properly decoded.
3608 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3614 unsigned char flags, format;
3617 /*Only the GMD has a pointer to the metadata.*/
3618 while (method->is_inflated)
3619 method = ((MonoMethodInflated*)method)->declaring;
3621 summary->code_size = 0;
3622 summary->has_clauses = FALSE;
3624 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3625 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))
3628 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3629 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3632 summary->code_size = header->code_size;
3633 summary->has_clauses = header->num_clauses > 0;
3638 idx = mono_metadata_token_index (method->token);
3639 img = method->klass->image;
3640 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3642 /*We must run the verifier since we'll be decoding it.*/
3643 if (!mono_verifier_verify_method_header (img, rva, NULL))
3646 ptr = mono_image_rva_map (img, rva);
3649 flags = *(const unsigned char *)ptr;
3650 format = flags & METHOD_HEADER_FORMAT_MASK;
3653 case METHOD_HEADER_TINY_FORMAT:
3655 summary->code_size = flags >> 2;
3657 case METHOD_HEADER_FAT_FORMAT:
3658 fat_flags = read16 (ptr);
3660 summary->code_size = read32 (ptr);
3661 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3662 summary->has_clauses = TRUE;
3671 * mono_metadata_parse_mh_full:
3672 * @m: metadata context
3673 * @generic_context: generics context
3674 * @ptr: pointer to the method header.
3676 * Decode the method header at @ptr, including pointer to the IL code,
3677 * info about local variables and optional exception tables.
3678 * This is a Mono runtime internal function.
3680 * LOCKING: Acquires the loader lock.
3682 * Returns: a transient MonoMethodHeader allocated from the heap.
3685 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3687 MonoMethodHeader *mh = NULL;
3688 unsigned char flags = *(const unsigned char *) ptr;
3689 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3691 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3692 const unsigned char *code;
3693 MonoExceptionClause* clauses = NULL;
3694 int num_clauses = 0;
3695 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3696 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3698 g_return_val_if_fail (ptr != NULL, NULL);
3701 case METHOD_HEADER_TINY_FORMAT:
3702 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3705 mh->is_transient = TRUE;
3706 local_var_sig_tok = 0;
3707 mh->code_size = flags >> 2;
3708 mh->code = (unsigned char*)ptr;
3710 case METHOD_HEADER_FAT_FORMAT:
3711 fat_flags = read16 (ptr);
3713 max_stack = read16 (ptr);
3715 code_size = read32 (ptr);
3717 local_var_sig_tok = read32 (ptr);
3720 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3725 code = (unsigned char*)ptr;
3727 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3731 * There are more sections
3733 ptr = (char*)code + code_size;
3739 if (local_var_sig_tok) {
3740 int idx = (local_var_sig_tok & 0xffffff)-1;
3741 if (idx >= t->rows || idx < 0)
3743 mono_metadata_decode_row (t, idx, cols, 1);
3745 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3748 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3749 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3750 if (local_var_sig_tok) {
3751 const char *locals_ptr;
3754 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3755 mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3756 if (*locals_ptr != 0x07)
3757 g_warning ("wrong signature for locals blob");
3759 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3760 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3761 mh->num_locals = len;
3762 for (i = 0; i < len; ++i) {
3763 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3764 0, TRUE, locals_ptr, &locals_ptr);
3765 if (!mh->locals [i])
3769 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3772 mh->code_size = code_size;
3773 mh->max_stack = max_stack;
3774 mh->is_transient = TRUE;
3775 mh->init_locals = init_locals;
3777 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3778 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3780 mh->clauses = clausesp;
3781 mh->num_clauses = num_clauses;
3792 * mono_metadata_parse_mh:
3793 * @generic_context: generics context
3794 * @ptr: pointer to the method header.
3796 * Decode the method header at @ptr, including pointer to the IL code,
3797 * info about local variables and optional exception tables.
3799 * Returns: a transient MonoMethodHeader allocated from the heap.
3802 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3804 return mono_metadata_parse_mh_full (m, NULL, ptr);
3808 * mono_metadata_free_mh:
3809 * @mh: a method header
3811 * Free the memory allocated for the method header.
3814 mono_metadata_free_mh (MonoMethodHeader *mh)
3818 /* If it is not transient it means it's part of a wrapper method,
3819 * or a SRE-generated method, so the lifetime in that case is
3820 * dictated by the method's own lifetime
3822 if (mh->is_transient) {
3823 for (i = 0; i < mh->num_locals; ++i)
3824 mono_metadata_free_type (mh->locals [i]);
3830 * mono_method_header_get_code:
3831 * @header: a MonoMethodHeader pointer
3832 * @code_size: memory location for returning the code size
3833 * @max_stack: memory location for returning the max stack
3835 * Method header accessor to retreive info about the IL code properties:
3836 * a pointer to the IL code itself, the size of the code and the max number
3837 * of stack slots used by the code.
3839 * Returns: pointer to the IL code represented by the method header.
3841 const unsigned char*
3842 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3845 *code_size = header->code_size;
3847 *max_stack = header->max_stack;
3848 return header->code;
3852 * mono_method_header_get_locals:
3853 * @header: a MonoMethodHeader pointer
3854 * @num_locals: memory location for returning the number of local variables
3855 * @init_locals: memory location for returning the init_locals flag
3857 * Method header accessor to retreive info about the local variables:
3858 * an array of local types, the number of locals and whether the locals
3859 * are supposed to be initialized to 0 on method entry
3861 * Returns: pointer to an array of types of the local variables
3864 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3867 *num_locals = header->num_locals;
3869 *init_locals = header->init_locals;
3870 return header->locals;
3874 * mono_method_header_get_num_clauses:
3875 * @header: a MonoMethodHeader pointer
3877 * Method header accessor to retreive the number of exception clauses.
3879 * Returns: the number of exception clauses present
3882 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3884 return header->num_clauses;
3888 * mono_method_header_get_clauses:
3889 * @header: a MonoMethodHeader pointer
3890 * @method: MonoMethod the header belongs to
3891 * @iter: pointer to a iterator
3892 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3894 * Get the info about the exception clauses in the method. Set *iter to NULL to
3895 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3896 * At each iteration, the structure pointed to by clause if filled with the
3897 * exception clause information.
3899 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3903 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3905 MonoExceptionClause *sc;
3906 /* later we'll be able to use this interface to parse the clause info on demand,
3907 * without allocating anything.
3909 if (!iter || !header->num_clauses)
3912 *iter = sc = header->clauses;
3918 if (sc < header->clauses + header->num_clauses) {
3927 * mono_metadata_parse_field_type:
3928 * @m: metadata context to extract information from
3929 * @ptr: pointer to the field signature
3930 * @rptr: pointer updated to match the end of the decoded stream
3932 * Parses the field signature, and returns the type information for it.
3934 * Returns: The MonoType that was extracted from @ptr.
3937 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3939 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3943 * mono_metadata_parse_param:
3944 * @m: metadata context to extract information from
3945 * @ptr: pointer to the param signature
3946 * @rptr: pointer updated to match the end of the decoded stream
3948 * Parses the param signature, and returns the type information for it.
3950 * Returns: The MonoType that was extracted from @ptr.
3953 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3955 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3959 * mono_metadata_token_from_dor:
3960 * @dor_token: A TypeDefOrRef coded index
3962 * dor_token is a TypeDefOrRef coded index: it contains either
3963 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3964 * bits contain an index into the table.
3966 * Returns: an expanded token
3969 mono_metadata_token_from_dor (guint32 dor_index)
3973 table = dor_index & 0x03;
3974 idx = dor_index >> 2;
3977 case 0: /* TypeDef */
3978 return MONO_TOKEN_TYPE_DEF | idx;
3979 case 1: /* TypeRef */
3980 return MONO_TOKEN_TYPE_REF | idx;
3981 case 2: /* TypeSpec */
3982 return MONO_TOKEN_TYPE_SPEC | idx;
3984 g_assert_not_reached ();
3991 * We use this to pass context information to the row locator
3994 int idx; /* The index that we are trying to locate */
3995 int col_idx; /* The index in the row where idx may be stored */
3996 MonoTableInfo *t; /* pointer to the table */
4001 * How the row locator works.
4006 * ___|___------> _______
4009 * A column in the rows of table A references an index in table B.
4010 * For example A may be the TYPEDEF table and B the METHODDEF table.
4012 * Given an index in table B we want to get the row in table A
4013 * where the column n references our index in B.
4015 * In the locator_t structure:
4017 * col_idx is the column number
4018 * index is the index in table B
4019 * result will be the index in table A
4022 * Table A Table B column (in table A)
4023 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
4024 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
4025 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
4026 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
4027 * METHODSEM PROPERTY ASSOCIATION (encoded index)
4029 * Note that we still don't support encoded indexes.
4033 typedef_locator (const void *a, const void *b)
4035 locator_t *loc = (locator_t *) a;
4036 const char *bb = (const char *) b;
4037 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
4038 guint32 col, col_next;
4040 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
4046 * Need to check that the next row is valid.
4048 if (typedef_index + 1 < loc->t->rows) {
4049 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
4050 if (loc->idx >= col_next)
4053 if (col == col_next)
4057 loc->result = typedef_index;
4063 table_locator (const void *a, const void *b)
4065 locator_t *loc = (locator_t *) a;
4066 const char *bb = (const char *) b;
4067 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4070 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4072 if (loc->idx == col) {
4073 loc->result = table_index;
4083 declsec_locator (const void *a, const void *b)
4085 locator_t *loc = (locator_t *) a;
4086 const char *bb = (const char *) b;
4087 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4090 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4092 if (loc->idx == col) {
4093 loc->result = table_index;
4105 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
4106 * which contains IDX.
4109 search_ptr_table (MonoImage *image, int table, int idx)
4111 MonoTableInfo *ptrdef = &image->tables [table];
4114 /* Use a linear search to find our index in the table */
4115 for (i = 0; i < ptrdef->rows; i ++)
4116 /* All the Ptr tables have the same structure */
4117 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
4120 if (i < ptrdef->rows)
4127 * mono_metadata_typedef_from_field:
4128 * @meta: metadata context
4129 * @index: FieldDef token
4131 * Returns: the 1-based index into the TypeDef table of the type that
4132 * declared the field described by @index, or 0 if not found.
4135 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
4137 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4143 loc.idx = mono_metadata_token_index (index);
4144 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
4147 if (meta->uncompressed_metadata)
4148 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4150 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4153 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4154 return loc.result + 1;
4158 * mono_metadata_typedef_from_method:
4159 * @meta: metadata context
4160 * @index: MethodDef token
4162 * Returns: the 1-based index into the TypeDef table of the type that
4163 * declared the method described by @index. 0 if not found.
4166 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
4168 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4174 loc.idx = mono_metadata_token_index (index);
4175 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
4178 if (meta->uncompressed_metadata)
4179 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
4181 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4184 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4185 return loc.result + 1;
4189 * mono_metadata_interfaces_from_typedef_full:
4190 * @meta: metadata context
4191 * @index: typedef token
4192 * @interfaces: Out parameter used to store the interface array
4193 * @count: Out parameter used to store the number of interfaces
4194 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
4195 * @context: The generic context
4197 * The array of interfaces that the @index typedef token implements is returned in
4198 * @interfaces. The number of elements in the array is returned in @count.
4201 * Returns: TRUE on success, FALSE on failure.
4204 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context, MonoError *error)
4206 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
4209 guint32 cols [MONO_INTERFACEIMPL_SIZE];
4215 mono_error_init (error);
4220 loc.idx = mono_metadata_token_index (index);
4221 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
4224 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4229 * We may end up in the middle of the rows...
4232 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4238 while (pos < tdef->rows) {
4239 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4240 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4245 if (heap_alloc_result)
4246 result = g_new0 (MonoClass*, pos - start);
4248 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4251 while (pos < tdef->rows) {
4254 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4255 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4257 iface = mono_class_get_and_inflate_typespec_checked (
4258 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context, error);
4261 result [pos - start] = iface;
4264 *count = pos - start;
4265 *interfaces = result;
4270 * @meta: metadata context
4271 * @index: typedef token
4272 * @count: Out parameter used to store the number of interfaces
4274 * The array of interfaces that the @index typedef token implements is returned in
4275 * @interfaces. The number of elements in the array is returned in @count. The returned
4276 * array is g_malloc'd and the caller must free it.
4278 * LOCKING: Acquires the loader lock .
4280 * Returns: the interface array on success, NULL on failure.
4284 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4287 MonoClass **interfaces = NULL;
4290 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL, &error);
4291 g_assert (mono_error_ok (&error)); /* FIXME dont swallow the error */
4299 * mono_metadata_nested_in_typedef:
4300 * @meta: metadata context
4301 * @index: typedef token
4303 * Returns: the 1-based index into the TypeDef table of the type
4304 * where the type described by @index is nested.
4305 * Returns 0 if @index describes a non-nested type.
4308 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4310 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4316 loc.idx = mono_metadata_token_index (index);
4317 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4320 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4323 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4324 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4328 * mono_metadata_nesting_typedef:
4329 * @meta: metadata context
4330 * @index: typedef token
4332 * Returns: the 1-based index into the TypeDef table of the first type
4333 * that is nested inside the type described by @index. The search starts at
4334 * @start_index. returns 0 if no such type is found.
4337 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4339 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4341 guint32 class_index = mono_metadata_token_index (index);
4346 start = start_index;
4348 while (start <= tdef->rows) {
4349 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4355 if (start > tdef->rows)
4362 * mono_metadata_packing_from_typedef:
4363 * @meta: metadata context
4364 * @index: token representing a type
4366 * Returns: the info stored in the ClassLAyout table for the given typedef token
4367 * into the @packing and @size pointers.
4368 * Returns 0 if the info is not found.
4371 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4373 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4375 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4380 loc.idx = mono_metadata_token_index (index);
4381 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4384 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4387 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4389 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4391 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4393 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4394 return loc.result + 1;
4398 * mono_metadata_custom_attrs_from_index:
4399 * @meta: metadata context
4400 * @index: token representing the parent
4402 * Returns: the 1-based index into the CustomAttribute table of the first
4403 * attribute which belongs to the metadata object described by @index.
4404 * Returns 0 if no such attribute is found.
4407 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4409 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4416 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4419 /* FIXME: Index translation */
4421 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4424 /* Find the first entry by searching backwards */
4425 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4428 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4429 return loc.result + 1;
4433 * mono_metadata_declsec_from_index:
4434 * @meta: metadata context
4435 * @index: token representing the parent
4437 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4438 * attribute which belongs to the metadata object described by @index.
4439 * Returns -1 if no such attribute is found.
4442 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4444 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4451 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4454 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4457 /* Find the first entry by searching backwards */
4458 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4465 * mono_metadata_localscope_from_methoddef:
4466 * @meta: metadata context
4467 * @index: methoddef index
4469 * Returns: the 1-based index into the LocalScope table of the first
4470 * scope which belongs to the method described by @index.
4471 * Returns 0 if no such row is found.
4474 mono_metadata_localscope_from_methoddef (MonoImage *meta, guint32 index)
4476 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_LOCALSCOPE];
4483 loc.col_idx = MONO_LOCALSCOPE_METHOD;
4486 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4489 /* Find the first entry by searching backwards */
4490 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_LOCALSCOPE_METHOD) == index))
4493 return loc.result + 1;
4498 mono_backtrace (int limit)
4503 backtrace (array, limit);
4504 names = backtrace_symbols (array, limit);
4505 for (i =0; i < limit; ++i) {
4506 g_print ("\t%s\n", names [i]);
4512 static int i8_align;
4515 * mono_type_set_alignment:
4517 * Set the alignment used by runtime to layout fields etc. of type TYPE to ALIGN.
4518 * This should only be used in AOT mode since the resulting layout will not match the
4522 mono_type_set_alignment (MonoTypeEnum type, int align)
4524 /* Support only a few types whose alignment is abi dependent */
4530 g_assert_not_reached ();
4537 * @t: the type to return the size of
4539 * Returns: the number of bytes required to hold an instance of this
4543 mono_type_size (MonoType *t, int *align)
4545 MonoTypeEnum simple_type;
4552 *align = MONO_ABI_ALIGNOF (gpointer);
4553 return MONO_ABI_SIZEOF (gpointer);
4556 simple_type = t->type;
4558 switch (simple_type) {
4559 case MONO_TYPE_VOID:
4562 case MONO_TYPE_BOOLEAN:
4563 *align = MONO_ABI_ALIGNOF (gint8);
4567 *align = MONO_ABI_ALIGNOF (gint8);
4569 case MONO_TYPE_CHAR:
4572 *align = MONO_ABI_ALIGNOF (gint16);
4576 *align = MONO_ABI_ALIGNOF (gint32);
4579 *align = MONO_ABI_ALIGNOF (float);
4583 *align = MONO_ABI_ALIGNOF (gint64);
4586 *align = MONO_ABI_ALIGNOF (double);
4590 *align = MONO_ABI_ALIGNOF (gpointer);
4591 return MONO_ABI_SIZEOF (gpointer);
4592 case MONO_TYPE_VALUETYPE: {
4593 if (t->data.klass->enumtype)
4594 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4596 return mono_class_value_size (t->data.klass, (guint32*)align);
4598 case MONO_TYPE_STRING:
4599 case MONO_TYPE_OBJECT:
4600 case MONO_TYPE_CLASS:
4601 case MONO_TYPE_SZARRAY:
4603 case MONO_TYPE_FNPTR:
4604 case MONO_TYPE_ARRAY:
4605 *align = MONO_ABI_ALIGNOF (gpointer);
4606 return MONO_ABI_SIZEOF (gpointer);
4607 case MONO_TYPE_TYPEDBYREF:
4608 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4609 case MONO_TYPE_GENERICINST: {
4610 MonoGenericClass *gclass = t->data.generic_class;
4611 MonoClass *container_class = gclass->container_class;
4613 // g_assert (!gclass->inst->is_open);
4615 if (container_class->valuetype) {
4616 if (container_class->enumtype)
4617 return mono_type_size (mono_class_enum_basetype (container_class), align);
4619 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4621 *align = MONO_ABI_ALIGNOF (gpointer);
4622 return MONO_ABI_SIZEOF (gpointer);
4626 case MONO_TYPE_MVAR:
4627 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4628 *align = MONO_ABI_ALIGNOF (gpointer);
4629 return MONO_ABI_SIZEOF (gpointer);
4631 /* The gparam can only match types given by gshared_constraint */
4632 return mono_type_size (t->data.generic_param->gshared_constraint, align);
4636 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4642 * mono_type_stack_size:
4643 * @t: the type to return the size it uses on the stack
4645 * Returns: the number of bytes required to hold an instance of this
4646 * type on the runtime stack
4649 mono_type_stack_size (MonoType *t, int *align)
4651 return mono_type_stack_size_internal (t, align, FALSE);
4655 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4658 MonoTypeEnum simple_type;
4659 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4660 int stack_slot_size = MONO_ABI_SIZEOF (gpointer);
4661 int stack_slot_align = MONO_ABI_ALIGNOF (gpointer);
4662 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4663 int stack_slot_size = SIZEOF_REGISTER;
4664 int stack_slot_align = SIZEOF_REGISTER;
4667 g_assert (t != NULL);
4673 *align = stack_slot_align;
4674 return stack_slot_size;
4677 simple_type = t->type;
4678 switch (simple_type) {
4679 case MONO_TYPE_BOOLEAN:
4680 case MONO_TYPE_CHAR:
4689 case MONO_TYPE_STRING:
4690 case MONO_TYPE_OBJECT:
4691 case MONO_TYPE_CLASS:
4692 case MONO_TYPE_SZARRAY:
4694 case MONO_TYPE_FNPTR:
4695 case MONO_TYPE_ARRAY:
4696 *align = stack_slot_align;
4697 return stack_slot_size;
4699 case MONO_TYPE_MVAR:
4700 g_assert (allow_open);
4701 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4702 *align = stack_slot_align;
4703 return stack_slot_size;
4705 /* The gparam can only match types given by gshared_constraint */
4706 return mono_type_stack_size_internal (t->data.generic_param->gshared_constraint, align, allow_open);
4708 case MONO_TYPE_TYPEDBYREF:
4709 *align = stack_slot_align;
4710 return stack_slot_size * 3;
4712 *align = MONO_ABI_ALIGNOF (float);
4713 return sizeof (float);
4716 *align = MONO_ABI_ALIGNOF (gint64);
4717 return sizeof (gint64);
4719 *align = MONO_ABI_ALIGNOF (double);
4720 return sizeof (double);
4721 case MONO_TYPE_VALUETYPE: {
4724 if (t->data.klass->enumtype)
4725 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4727 size = mono_class_value_size (t->data.klass, (guint32*)align);
4729 *align = *align + stack_slot_align - 1;
4730 *align &= ~(stack_slot_align - 1);
4732 size += stack_slot_size - 1;
4733 size &= ~(stack_slot_size - 1);
4738 case MONO_TYPE_GENERICINST: {
4739 MonoGenericClass *gclass = t->data.generic_class;
4740 MonoClass *container_class = gclass->container_class;
4743 g_assert (!gclass->context.class_inst->is_open);
4745 if (container_class->valuetype) {
4746 if (container_class->enumtype)
4747 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4749 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4751 *align = *align + stack_slot_align - 1;
4752 *align &= ~(stack_slot_align - 1);
4754 size += stack_slot_size - 1;
4755 size &= ~(stack_slot_size - 1);
4760 *align = stack_slot_align;
4761 return stack_slot_size;
4765 g_error ("type 0x%02x unknown", t->type);
4771 mono_type_generic_inst_is_valuetype (MonoType *type)
4773 g_assert (type->type == MONO_TYPE_GENERICINST);
4774 return type->data.generic_class->container_class->valuetype;
4778 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4780 return gclass->container_class->valuetype;
4784 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4786 MonoGenericInst *i1 = g1->context.class_inst;
4787 MonoGenericInst *i2 = g2->context.class_inst;
4789 if (g1->is_dynamic != g2->is_dynamic)
4791 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4793 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4795 return g1->is_tb_open == g2->is_tb_open;
4799 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4801 MonoGenericInst *i1 = g1->context.class_inst;
4802 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4804 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4806 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4808 return !g1->is_tb_open;
4812 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4814 /* FIXME: check if this seed is good enough */
4815 guint hash = 0xc01dfee7;
4816 if (context->class_inst)
4817 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4818 if (context->method_inst)
4819 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4824 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4826 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4830 * mono_metadata_str_hash:
4832 * This should be used instead of g_str_hash for computing hash codes visible
4833 * outside this module, since g_str_hash () is not guaranteed to be stable
4834 * (its not the same in eglib for example).
4837 mono_metadata_str_hash (gconstpointer v1)
4839 /* Same as g_str_hash () in glib */
4840 char *p = (char *) v1;
4845 hash = (hash << 5) - hash + *p;
4852 * mono_metadata_type_hash:
4855 * Computes an hash value for @t1 to be used in GHashTable.
4856 * The returned hash is guaranteed to be the same across executions.
4859 mono_metadata_type_hash (MonoType *t1)
4861 guint hash = t1->type;
4863 hash |= t1->byref << 6; /* do not collide with t1->type values */
4865 case MONO_TYPE_VALUETYPE:
4866 case MONO_TYPE_CLASS:
4867 case MONO_TYPE_SZARRAY: {
4868 MonoClass *klass = t1->data.klass;
4870 * Dynamic classes must not be hashed on their type since it can change
4871 * during runtime. For example, if we hash a reference type that is
4872 * later made into a valuetype.
4874 * This is specially problematic with generic instances since they are
4875 * inserted in a bunch of hash tables before been finished.
4877 if (image_is_dynamic (klass->image))
4878 return (t1->byref << 6) | mono_metadata_str_hash (klass->name);
4879 return ((hash << 5) - hash) ^ mono_metadata_str_hash (klass->name);
4882 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4883 case MONO_TYPE_ARRAY:
4884 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4885 case MONO_TYPE_GENERICINST:
4886 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4888 case MONO_TYPE_MVAR:
4889 return ((hash << 5) - hash) ^ mono_metadata_generic_param_hash (t1->data.generic_param);
4896 mono_metadata_generic_param_hash (MonoGenericParam *p)
4899 MonoGenericParamInfo *info;
4901 hash = (mono_generic_param_num (p) << 2);
4902 if (p->gshared_constraint)
4903 hash = ((hash << 5) - hash) ^ mono_metadata_type_hash (p->gshared_constraint);
4904 info = mono_generic_param_info (p);
4905 /* Can't hash on the owner klass/method, since those might not be set when this is called */
4907 hash = ((hash << 5) - hash) ^ info->token;
4912 mono_metadata_generic_param_equal_internal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4916 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4918 if (p1->gshared_constraint && p2->gshared_constraint) {
4919 if (!mono_metadata_type_equal (p1->gshared_constraint, p2->gshared_constraint))
4922 if (p1->gshared_constraint != p2->gshared_constraint)
4927 * We have to compare the image as well because if we didn't,
4928 * the generic_inst_cache lookup wouldn't care about the image
4929 * of generic params, so what could happen is that a generic
4930 * inst with params from image A is put into the cache, then
4931 * image B gets that generic inst from the cache, image A is
4932 * unloaded, so the inst is deleted, but image B still retains
4935 * The AOT runtime doesn't set the image when it's decoding
4936 * types, so we only compare it when the owner is NULL.
4938 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4939 (mono_generic_param_owner (p1) || p1->image == p2->image))
4943 * If `signature_only' is true, we're comparing two (method) signatures.
4944 * In this case, the owner of two type parameters doesn't need to match.
4947 return signature_only;
4951 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2)
4953 return mono_metadata_generic_param_equal_internal (p1, p2, TRUE);
4957 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4961 if (c1->generic_class && c2->generic_class)
4962 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4963 if (c1->generic_class && c2->generic_container)
4964 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4965 if (c1->generic_container && c2->generic_class)
4966 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4967 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4968 return mono_metadata_generic_param_equal_internal (
4969 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4970 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4971 return mono_metadata_generic_param_equal_internal (
4972 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4973 if (signature_only &&
4974 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4975 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4976 if (signature_only &&
4977 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
4978 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
4983 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4985 gpointer iter1 = 0, iter2 = 0;
4989 if (s1->call_convention != s2->call_convention)
4991 if (s1->sentinelpos != s2->sentinelpos)
4993 if (s1->hasthis != s2->hasthis)
4995 if (s1->explicit_this != s2->explicit_this)
4997 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4999 if (s1->param_count != s2->param_count)
5003 MonoType *t1 = mono_signature_get_params (s1, &iter1);
5004 MonoType *t2 = mono_signature_get_params (s2, &iter2);
5006 if (t1 == NULL || t2 == NULL)
5008 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
5014 * mono_metadata_type_equal:
5018 * Determine if @t1 and @t2 represent the same type.
5019 * Returns: #TRUE if @t1 and @t2 are equal.
5022 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
5024 if (t1->type != t2->type || t1->byref != t2->byref)
5028 case MONO_TYPE_VOID:
5029 case MONO_TYPE_BOOLEAN:
5030 case MONO_TYPE_CHAR:
5041 case MONO_TYPE_STRING:
5044 case MONO_TYPE_OBJECT:
5045 case MONO_TYPE_TYPEDBYREF:
5047 case MONO_TYPE_VALUETYPE:
5048 case MONO_TYPE_CLASS:
5049 case MONO_TYPE_SZARRAY:
5050 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
5052 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
5053 case MONO_TYPE_ARRAY:
5054 if (t1->data.array->rank != t2->data.array->rank)
5056 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
5057 case MONO_TYPE_GENERICINST:
5058 return _mono_metadata_generic_class_equal (
5059 t1->data.generic_class, t2->data.generic_class, signature_only);
5061 return mono_metadata_generic_param_equal_internal (
5062 t1->data.generic_param, t2->data.generic_param, signature_only);
5063 case MONO_TYPE_MVAR:
5064 return mono_metadata_generic_param_equal_internal (
5065 t1->data.generic_param, t2->data.generic_param, signature_only);
5066 case MONO_TYPE_FNPTR:
5067 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
5069 g_error ("implement type compare for %0x!", t1->type);
5077 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
5079 return do_mono_metadata_type_equal (t1, t2, FALSE);
5083 * mono_metadata_type_equal_full:
5086 * @signature_only: if signature only comparison should be made
5088 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
5089 * behaves the same way as mono_metadata_type_equal.
5090 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
5091 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
5094 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
5096 return do_mono_metadata_type_equal (t1, t2, signature_only);
5100 * mono_metadata_signature_equal:
5101 * @sig1: a signature
5102 * @sig2: another signature
5104 * Determine if @sig1 and @sig2 represent the same signature, with the
5105 * same number of arguments and the same types.
5106 * Returns: #TRUE if @sig1 and @sig2 are equal.
5109 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
5113 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
5116 if (sig1->generic_param_count != sig2->generic_param_count)
5120 * We're just comparing the signatures of two methods here:
5122 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
5123 * U and V are equal here.
5125 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
5128 for (i = 0; i < sig1->param_count; i++) {
5129 MonoType *p1 = sig1->params[i];
5130 MonoType *p2 = sig2->params[i];
5132 /* if (p1->attrs != p2->attrs)
5135 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
5139 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
5145 * mono_metadata_type_dup:
5146 * @image: image to alloc memory from
5147 * @original: type to duplicate
5149 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
5152 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
5155 int sizeof_o = MONO_SIZEOF_TYPE;
5157 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
5159 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
5161 memcpy (r, o, sizeof_o);
5163 if (o->type == MONO_TYPE_PTR) {
5164 r->data.type = mono_metadata_type_dup (image, o->data.type);
5165 } else if (o->type == MONO_TYPE_ARRAY) {
5166 r->data.array = mono_dup_array_type (image, o->data.array);
5167 } else if (o->type == MONO_TYPE_FNPTR) {
5168 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
5169 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
5175 mono_signature_hash (MonoMethodSignature *sig)
5177 guint i, res = sig->ret->type;
5179 for (i = 0; i < sig->param_count; i++)
5180 res = (res << 5) - res + mono_type_hash (sig->params[i]);
5186 * mono_metadata_encode_value:
5187 * @value: value to encode
5188 * @buf: buffer where to write the compressed representation
5189 * @endbuf: pointer updated to point at the end of the encoded output
5191 * Encodes the value @value in the compressed representation used
5192 * in metadata and stores the result in @buf. @buf needs to be big
5193 * enough to hold the data (4 bytes).
5196 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
5202 else if (value < 0x4000) {
5203 p [0] = 0x80 | (value >> 8);
5204 p [1] = value & 0xff;
5207 p [0] = (value >> 24) | 0xc0;
5208 p [1] = (value >> 16) & 0xff;
5209 p [2] = (value >> 8) & 0xff;
5210 p [3] = value & 0xff;
5218 * mono_metadata_field_info:
5219 * @meta: the Image the field is defined in
5220 * @index: the index in the field table representing the field
5221 * @offset: a pointer to an integer where to store the offset that
5222 * may have been specified for the field in a FieldLayout table
5223 * @rva: a pointer to the RVA of the field data in the image that
5224 * may have been defined in a FieldRVA table
5225 * @marshal_spec: a pointer to the marshal spec that may have been
5226 * defined for the field in a FieldMarshal table.
5228 * Gather info for field @index that may have been defined in the FieldLayout,
5229 * FieldRVA and FieldMarshal tables.
5230 * Either of offset, rva and marshal_spec can be NULL if you're not interested
5234 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5235 MonoMarshalSpec **marshal_spec)
5237 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
5241 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5242 MonoMarshalSpec **marshal_spec)
5244 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
5248 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5249 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
5251 MonoTableInfo *tdef;
5254 loc.idx = index + 1;
5255 if (meta->uncompressed_metadata)
5256 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
5259 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
5261 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
5264 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5265 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
5267 *offset = (guint32)-1;
5271 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
5273 loc.col_idx = MONO_FIELD_RVA_FIELD;
5276 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5278 * LAMESPEC: There is no signature, no nothing, just the raw data.
5280 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
5288 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
5289 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, meta, p);
5296 * mono_metadata_get_constant_index:
5297 * @meta: the Image the field is defined in
5298 * @index: the token that may have a row defined in the constants table
5299 * @hint: possible position for the row
5301 * @token must be a FieldDef, ParamDef or PropertyDef token.
5303 * Returns: the index into the Constants table or 0 if not found.
5306 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
5308 MonoTableInfo *tdef;
5310 guint32 index = mono_metadata_token_index (token);
5312 tdef = &meta->tables [MONO_TABLE_CONSTANT];
5313 index <<= MONO_HASCONSTANT_BITS;
5314 switch (mono_metadata_token_table (token)) {
5315 case MONO_TABLE_FIELD:
5316 index |= MONO_HASCONSTANT_FIEDDEF;
5318 case MONO_TABLE_PARAM:
5319 index |= MONO_HASCONSTANT_PARAM;
5321 case MONO_TABLE_PROPERTY:
5322 index |= MONO_HASCONSTANT_PROPERTY;
5325 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5329 loc.col_idx = MONO_CONSTANT_PARENT;
5332 /* FIXME: Index translation */
5334 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5337 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5338 return loc.result + 1;
5344 * mono_metadata_events_from_typedef:
5345 * @meta: metadata context
5346 * @index: 0-based index (in the TypeDef table) describing a type
5348 * Returns: the 0-based index in the Event table for the events in the
5349 * type. The last event that belongs to the type (plus 1) is stored
5350 * in the @end_idx pointer.
5353 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5357 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5365 loc.col_idx = MONO_EVENT_MAP_PARENT;
5366 loc.idx = index + 1;
5368 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5371 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5372 if (loc.result + 1 < tdef->rows) {
5373 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5375 end = meta->tables [MONO_TABLE_EVENT].rows;
5383 * mono_metadata_methods_from_event:
5384 * @meta: metadata context
5385 * @index: 0-based index (in the Event table) describing a event
5387 * Returns: the 0-based index in the MethodDef table for the methods in the
5388 * event. The last method that belongs to the event (plus 1) is stored
5389 * in the @end_idx pointer.
5392 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5396 guint32 cols [MONO_METHOD_SEMA_SIZE];
5397 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5403 if (meta->uncompressed_metadata)
5404 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5407 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5408 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5410 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5415 * We may end up in the middle of the rows...
5418 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5424 while (end < msemt->rows) {
5425 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5426 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5435 * mono_metadata_properties_from_typedef:
5436 * @meta: metadata context
5437 * @index: 0-based index (in the TypeDef table) describing a type
5439 * Returns: the 0-based index in the Property table for the properties in the
5440 * type. The last property that belongs to the type (plus 1) is stored
5441 * in the @end_idx pointer.
5444 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5448 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5456 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5457 loc.idx = index + 1;
5459 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5462 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5463 if (loc.result + 1 < tdef->rows) {
5464 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5466 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5474 * mono_metadata_methods_from_property:
5475 * @meta: metadata context
5476 * @index: 0-based index (in the PropertyDef table) describing a property
5478 * Returns: the 0-based index in the MethodDef table for the methods in the
5479 * property. The last method that belongs to the property (plus 1) is stored
5480 * in the @end_idx pointer.
5483 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5487 guint32 cols [MONO_METHOD_SEMA_SIZE];
5488 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5494 if (meta->uncompressed_metadata)
5495 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5498 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5499 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5501 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5506 * We may end up in the middle of the rows...
5509 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5515 while (end < msemt->rows) {
5516 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5517 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5526 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5529 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5534 /* No index translation seems to be needed */
5537 loc.col_idx = MONO_IMPLMAP_MEMBER;
5538 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5540 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5543 return loc.result + 1;
5547 * @image: context where the image is created
5548 * @type_spec: typespec token
5549 * @deprecated use mono_type_create_from_typespec_checked that has proper error handling
5551 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5555 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5558 MonoType *type = mono_type_create_from_typespec_checked (image, type_spec, &error);
5560 g_error ("Could not create typespec %x due to %s", type_spec, mono_error_get_message (&error));
5565 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error)
5568 guint32 idx = mono_metadata_token_index (type_spec);
5570 guint32 cols [MONO_TYPESPEC_SIZE];
5572 MonoType *type, *type2;
5574 mono_error_init (error);
5576 mono_image_lock (image);
5577 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5578 mono_image_unlock (image);
5582 t = &image->tables [MONO_TABLE_TYPESPEC];
5584 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5585 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5587 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5588 mono_error_set_bad_image (error, image, "Could not verify type spec %08x.", type_spec);
5592 mono_metadata_decode_value (ptr, &ptr);
5594 type = mono_metadata_parse_type_checked (image, NULL, 0, TRUE, ptr, &ptr, error);
5598 type2 = mono_metadata_type_dup (image, type);
5599 mono_metadata_free_type (type);
5601 mono_image_lock (image);
5602 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5603 /* We might leak some data in the image mempool if found */
5605 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5608 mono_image_unlock (image);
5615 mono_image_strndup (MonoImage *image, const char *data, guint len)
5619 return g_strndup (data, len);
5620 res = mono_image_alloc (image, len + 1);
5621 memcpy (res, data, len);
5627 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5629 return mono_metadata_parse_marshal_spec_full (NULL, image, ptr);
5633 * If IMAGE is non-null, memory will be allocated from its mempool, otherwise it will be allocated using malloc.
5634 * PARENT_IMAGE is the image containing the marshal spec.
5637 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr)
5639 MonoMarshalSpec *res;
5641 const char *start = ptr;
5643 /* fixme: this is incomplete, but I cant find more infos in the specs */
5646 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5648 res = g_new0 (MonoMarshalSpec, 1);
5650 len = mono_metadata_decode_value (ptr, &ptr);
5651 res->native = *ptr++;
5653 if (res->native == MONO_NATIVE_LPARRAY) {
5654 res->data.array_data.param_num = -1;
5655 res->data.array_data.num_elem = -1;
5656 res->data.array_data.elem_mult = -1;
5658 if (ptr - start <= len)
5659 res->data.array_data.elem_type = *ptr++;
5660 if (ptr - start <= len)
5661 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5662 if (ptr - start <= len)
5663 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5664 if (ptr - start <= len) {
5666 * LAMESPEC: Older spec versions say this parameter comes before
5667 * num_elem. Never spec versions don't talk about elem_mult at
5668 * all, but csc still emits it, and it is used to distinguish
5669 * between param_num being 0, and param_num being omitted.
5670 * So if (param_num == 0) && (num_elem > 0), then
5671 * elem_mult == 0 -> the array size is num_elem
5672 * elem_mult == 1 -> the array size is @param_num + num_elem
5674 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5678 if (res->native == MONO_NATIVE_BYVALTSTR) {
5679 if (ptr - start <= len)
5680 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5683 if (res->native == MONO_NATIVE_BYVALARRAY) {
5684 if (ptr - start <= len)
5685 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5688 if (res->native == MONO_NATIVE_CUSTOM) {
5689 /* skip unused type guid */
5690 len = mono_metadata_decode_value (ptr, &ptr);
5692 /* skip unused native type name */
5693 len = mono_metadata_decode_value (ptr, &ptr);
5695 /* read custom marshaler type name */
5696 len = mono_metadata_decode_value (ptr, &ptr);
5697 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5699 /* read cookie string */
5700 len = mono_metadata_decode_value (ptr, &ptr);
5701 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5702 res->data.custom_data.image = parent_image;
5705 if (res->native == MONO_NATIVE_SAFEARRAY) {
5706 res->data.safearray_data.elem_type = 0;
5707 res->data.safearray_data.num_elem = 0;
5708 if (ptr - start <= len)
5709 res->data.safearray_data.elem_type = *ptr++;
5710 if (ptr - start <= len)
5711 res->data.safearray_data.num_elem = *ptr++;
5717 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5719 if (spec->native == MONO_NATIVE_CUSTOM) {
5720 g_free (spec->data.custom_data.custom_name);
5721 g_free (spec->data.custom_data.cookie);
5727 * mono_type_to_unmanaged:
5729 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5730 * describing the underlying native reprensetation of the type.
5732 * In addition the value pointed by
5733 * "conv" will contain the kind of marshalling required for this
5734 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5737 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5738 gboolean unicode, MonoMarshalConv *conv)
5740 MonoMarshalConv dummy_conv;
5746 *conv = MONO_MARSHAL_CONV_NONE;
5749 return MONO_NATIVE_UINT;
5753 case MONO_TYPE_BOOLEAN:
5755 switch (mspec->native) {
5756 case MONO_NATIVE_VARIANTBOOL:
5757 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5758 return MONO_NATIVE_VARIANTBOOL;
5759 case MONO_NATIVE_BOOLEAN:
5760 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5761 return MONO_NATIVE_BOOLEAN;
5762 case MONO_NATIVE_I1:
5763 case MONO_NATIVE_U1:
5764 return mspec->native;
5766 g_error ("cant marshal bool to native type %02x", mspec->native);
5769 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5770 return MONO_NATIVE_BOOLEAN;
5771 case MONO_TYPE_CHAR:
5773 switch (mspec->native) {
5774 case MONO_NATIVE_U2:
5775 case MONO_NATIVE_U1:
5776 return mspec->native;
5778 g_error ("cant marshal char to native type %02x", mspec->native);
5781 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5782 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5783 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5784 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5785 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5786 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5787 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5788 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5789 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5790 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5791 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5792 case MONO_TYPE_STRING:
5794 switch (mspec->native) {
5795 case MONO_NATIVE_BSTR:
5796 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5797 return MONO_NATIVE_BSTR;
5798 case MONO_NATIVE_LPSTR:
5799 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5800 return MONO_NATIVE_LPSTR;
5801 case MONO_NATIVE_LPWSTR:
5802 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5803 return MONO_NATIVE_LPWSTR;
5804 case MONO_NATIVE_LPTSTR:
5805 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5806 return MONO_NATIVE_LPTSTR;
5807 case MONO_NATIVE_ANSIBSTR:
5808 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5809 return MONO_NATIVE_ANSIBSTR;
5810 case MONO_NATIVE_TBSTR:
5811 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5812 return MONO_NATIVE_TBSTR;
5813 case MONO_NATIVE_BYVALTSTR:
5815 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5817 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5818 return MONO_NATIVE_BYVALTSTR;
5820 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);
5824 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5825 return MONO_NATIVE_LPWSTR;
5828 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5829 return MONO_NATIVE_LPSTR;
5831 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5832 case MONO_TYPE_VALUETYPE: /*FIXME*/
5833 if (type->data.klass->enumtype) {
5834 t = mono_class_enum_basetype (type->data.klass)->type;
5837 if (type->data.klass == mono_defaults.handleref_class){
5838 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5839 return MONO_NATIVE_INT;
5841 return MONO_NATIVE_STRUCT;
5842 case MONO_TYPE_SZARRAY:
5843 case MONO_TYPE_ARRAY:
5845 switch (mspec->native) {
5846 case MONO_NATIVE_BYVALARRAY:
5847 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5848 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5850 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5851 return MONO_NATIVE_BYVALARRAY;
5852 case MONO_NATIVE_SAFEARRAY:
5853 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5854 return MONO_NATIVE_SAFEARRAY;
5855 case MONO_NATIVE_LPARRAY:
5856 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5857 return MONO_NATIVE_LPARRAY;
5859 g_error ("cant marshal array as native type %02x", mspec->native);
5863 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5864 return MONO_NATIVE_LPARRAY;
5865 case MONO_TYPE_I: return MONO_NATIVE_INT;
5866 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5867 case MONO_TYPE_CLASS:
5868 case MONO_TYPE_OBJECT: {
5869 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5871 switch (mspec->native) {
5872 case MONO_NATIVE_STRUCT:
5873 return MONO_NATIVE_STRUCT;
5874 case MONO_NATIVE_CUSTOM:
5875 return MONO_NATIVE_CUSTOM;
5876 case MONO_NATIVE_INTERFACE:
5877 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5878 return MONO_NATIVE_INTERFACE;
5879 case MONO_NATIVE_IDISPATCH:
5880 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5881 return MONO_NATIVE_IDISPATCH;
5882 case MONO_NATIVE_IUNKNOWN:
5883 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5884 return MONO_NATIVE_IUNKNOWN;
5885 case MONO_NATIVE_FUNC:
5886 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5887 type->data.klass == mono_defaults.delegate_class ||
5888 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5889 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5890 return MONO_NATIVE_FUNC;
5894 g_error ("cant marshal object as native type %02x", mspec->native);
5897 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5898 type->data.klass == mono_defaults.delegate_class ||
5899 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5900 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5901 return MONO_NATIVE_FUNC;
5903 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5904 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5905 return MONO_NATIVE_INT;
5907 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5908 return MONO_NATIVE_STRUCT;
5910 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5911 case MONO_TYPE_GENERICINST:
5912 type = &type->data.generic_class->container_class->byval_arg;
5915 case MONO_TYPE_TYPEDBYREF:
5917 g_error ("type 0x%02x not handled in marshal", t);
5919 return MONO_NATIVE_MAX;
5923 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5926 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5932 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5933 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5935 /* FIXME: Index translation */
5937 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5940 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5944 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error)
5946 MonoMethod *result = NULL;
5947 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5949 mono_error_init (error);
5951 switch (tok & MONO_METHODDEFORREF_MASK) {
5952 case MONO_METHODDEFORREF_METHODDEF:
5953 result = mono_get_method_checked (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context, error);
5955 case MONO_METHODDEFORREF_METHODREF:
5956 result = mono_get_method_checked (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context, error);
5959 mono_error_set_bad_image (error, m, "Invalid MethodDefOfRef token %x", tok);
5966 * mono_class_get_overrides_full:
5968 * Return the method overrides belonging to class @type_token in @overrides, and
5969 * the number of overrides in @num_overrides.
5971 * Returns: TRUE on success, FALSE on failure.
5974 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5975 MonoGenericContext *generic_context)
5979 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5982 guint32 cols [MONO_METHODIMPL_SIZE];
5983 MonoMethod **result;
5994 loc.col_idx = MONO_METHODIMPL_CLASS;
5995 loc.idx = mono_metadata_token_index (type_token);
5997 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6003 * We may end up in the middle of the rows...
6006 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
6011 while (end < tdef->rows) {
6012 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
6018 result = g_new (MonoMethod*, num * 2);
6019 for (i = 0; i < num; ++i) {
6022 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
6023 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6028 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
6029 method = method_from_method_def_or_ref (
6030 image, cols [MONO_METHODIMPL_DECLARATION], generic_context, &error);
6031 if (method == NULL) {
6032 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6035 result [i * 2] = method;
6036 method = method_from_method_def_or_ref (
6037 image, cols [MONO_METHODIMPL_BODY], generic_context, &error);
6038 if (method == NULL) {
6039 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6042 result [i * 2 + 1] = method;
6045 *overrides = result;
6047 *num_overrides = num;
6052 * mono_guid_to_string:
6054 * Converts a 16 byte Microsoft GUID to the standard string representation.
6057 mono_guid_to_string (const guint8 *guid)
6059 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
6060 guid[3], guid[2], guid[1], guid[0],
6064 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6068 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container, MonoError *error)
6070 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
6071 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
6072 guint32 i, token, found;
6073 MonoClass *klass, **res;
6074 GSList *cons = NULL, *tmp;
6075 MonoGenericContext *context = &container->context;
6077 mono_error_init (error);
6079 *constraints = NULL;
6081 for (i = 0; i < tdef->rows; ++i) {
6082 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
6083 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
6084 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
6085 klass = mono_class_get_and_inflate_typespec_checked (image, token, context, error);
6087 g_slist_free (cons);
6090 cons = g_slist_append (cons, klass);
6093 /* contiguous list finished */
6100 res = mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
6101 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
6102 res [i] = tmp->data;
6104 g_slist_free (cons);
6110 * mono_metadata_get_generic_param_row:
6113 * @token: TypeOrMethodDef token, owner for GenericParam
6114 * @owner: coded token, set on return
6116 * Returns: 1-based row-id in the GenericParam table whose
6117 * owner is @token. 0 if not found.
6120 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
6122 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6129 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
6130 *owner = MONO_TYPEORMETHOD_TYPE;
6131 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6132 *owner = MONO_TYPEORMETHOD_METHOD;
6134 g_error ("wrong token %x to get_generic_param_row", token);
6137 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
6140 loc.col_idx = MONO_GENERICPARAM_OWNER;
6143 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6146 /* Find the first entry by searching backwards */
6147 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
6150 return loc.result + 1;
6154 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
6157 return mono_metadata_get_generic_param_row (image, token, &owner);
6161 * Memory is allocated from IMAGE's mempool.
6164 mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
6165 MonoGenericContainer *container, MonoError *error)
6168 guint32 start_row, i, owner;
6169 mono_error_init (error);
6171 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
6173 for (i = 0; i < container->type_argc; i++) {
6174 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container, error)) {
6175 mono_loader_assert_no_error ();
6183 * mono_metadata_load_generic_params:
6185 * Load the type parameters from the type or method definition @token.
6187 * Use this method after parsing a type or method definition to figure out whether it's a generic
6188 * type / method. When parsing a method definition, @parent_container points to the generic container
6189 * of the current class, if any.
6191 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
6192 * creating the type.
6194 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
6196 * LOCKING: Acquires the loader lock
6199 MonoGenericContainer *
6200 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
6202 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6203 guint32 cols [MONO_GENERICPARAM_SIZE];
6204 guint32 i, owner = 0, n;
6205 MonoGenericContainer *container;
6206 MonoGenericParamFull *params;
6207 MonoGenericContext *context;
6209 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
6211 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6214 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
6215 container->image = image;
6218 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
6219 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
6220 params [n - 1].param.owner = container;
6221 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
6222 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
6223 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
6224 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
6225 if (params [n - 1].param.num != n - 1)
6226 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
6227 if (++i > tdef->rows)
6229 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6230 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
6232 container->type_argc = n;
6233 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
6234 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
6236 container->parent = parent_container;
6238 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6239 container->is_method = 1;
6241 g_assert (container->parent == NULL || container->is_method);
6243 context = &container->context;
6244 if (container->is_method) {
6245 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
6246 context->method_inst = mono_get_shared_generic_inst (container);
6248 context->class_inst = mono_get_shared_generic_inst (container);
6255 mono_get_shared_generic_inst (MonoGenericContainer *container)
6257 MonoType **type_argv;
6259 MonoGenericInst *nginst;
6262 type_argv = g_new0 (MonoType *, container->type_argc);
6263 helper = g_new0 (MonoType, container->type_argc);
6265 for (i = 0; i < container->type_argc; i++) {
6266 MonoType *t = &helper [i];
6268 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
6269 t->data.generic_param = mono_generic_container_get_param (container, i);
6274 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
6283 * mono_type_is_byref:
6284 * @type: the MonoType operated on
6286 * Returns: #TRUE if @type represents a type passed by reference,
6290 mono_type_is_byref (MonoType *type)
6296 * mono_type_get_type:
6297 * @type: the MonoType operated on
6299 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
6300 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
6303 mono_type_get_type (MonoType *type)
6309 * mono_type_get_signature:
6310 * @type: the MonoType operated on
6312 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
6314 * Returns: the MonoMethodSignature pointer that describes the signature
6315 * of the function pointer @type represents.
6317 MonoMethodSignature*
6318 mono_type_get_signature (MonoType *type)
6320 g_assert (type->type == MONO_TYPE_FNPTR);
6321 return type->data.method;
6325 * mono_type_get_class:
6326 * @type: the MonoType operated on
6328 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
6329 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
6332 * Returns: the MonoClass pointer that describes the class that @type represents.
6335 mono_type_get_class (MonoType *type)
6337 /* FIXME: review the runtime users before adding the assert here */
6338 return type->data.klass;
6342 * mono_type_get_array_type:
6343 * @type: the MonoType operated on
6345 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6347 * Returns: a MonoArrayType struct describing the array type that @type
6348 * represents. The info includes details such as rank, array element type
6349 * and the sizes and bounds of multidimensional arrays.
6352 mono_type_get_array_type (MonoType *type)
6354 return type->data.array;
6358 * mono_type_get_ptr_type:
6359 * @type: the MonoType operated on
6361 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6364 * Returns: the MonoType pointer that describes the type that @type
6365 * represents a pointer to.
6368 mono_type_get_ptr_type (MonoType *type)
6370 g_assert (type->type == MONO_TYPE_PTR);
6371 return type->data.type;
6375 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6377 /* FIXME: implement */
6382 * mono_type_is_struct:
6383 * @type: the MonoType operated on
6385 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6386 * or a basic type like System.Int32. #FALSE otherwise.
6389 mono_type_is_struct (MonoType *type)
6391 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6392 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6393 ((type->type == MONO_TYPE_GENERICINST) &&
6394 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6395 !type->data.generic_class->container_class->enumtype)));
6399 * mono_type_is_void:
6400 * @type: the MonoType operated on
6402 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6405 mono_type_is_void (MonoType *type)
6407 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6411 * mono_type_is_pointer:
6412 * @type: the MonoType operated on
6414 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6417 mono_type_is_pointer (MonoType *type)
6419 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6420 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6421 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6422 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6423 (type->type == MONO_TYPE_FNPTR)));
6427 * mono_type_is_reference:
6428 * @type: the MonoType operated on
6430 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6433 mono_type_is_reference (MonoType *type)
6435 return (type && (((type->type == MONO_TYPE_STRING) ||
6436 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6437 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6438 ((type->type == MONO_TYPE_GENERICINST) &&
6439 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6443 * mono_signature_get_return_type:
6444 * @sig: the method signature inspected
6446 * Returns: the return type of the method signature @sig
6449 mono_signature_get_return_type (MonoMethodSignature *sig)
6455 * mono_signature_get_params:
6456 * @sig: the method signature inspected
6457 * #iter: pointer to an iterator
6459 * Iterates over the parameters for the method signature @sig.
6460 * A void* pointer must be initualized to #NULL to start the iteration
6461 * and it's address is passed to this function repeteadly until it returns
6464 * Returns: the next parameter type of the method signature @sig,
6465 * #NULL when finished.
6468 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6474 /* start from the first */
6475 if (sig->param_count) {
6476 *iter = &sig->params [0];
6477 return sig->params [0];
6485 if (type < &sig->params [sig->param_count]) {
6493 * mono_signature_get_param_count:
6494 * @sig: the method signature inspected
6496 * Returns: the number of parameters in the method signature @sig.
6499 mono_signature_get_param_count (MonoMethodSignature *sig)
6501 return sig->param_count;
6505 * mono_signature_get_call_conv:
6506 * @sig: the method signature inspected
6508 * Returns: the call convention of the method signature @sig.
6511 mono_signature_get_call_conv (MonoMethodSignature *sig)
6513 return sig->call_convention;
6517 * mono_signature_vararg_start:
6518 * @sig: the method signature inspected
6520 * Returns: the number of the first vararg parameter in the
6521 * method signature @sig. -1 if this is not a vararg signature.
6524 mono_signature_vararg_start (MonoMethodSignature *sig)
6526 return sig->sentinelpos;
6530 * mono_signature_is_instance:
6531 * @sig: the method signature inspected
6533 * Returns: #TRUE if this the method signature @sig has an implicit
6534 * first instance argument. #FALSE otherwise.
6537 mono_signature_is_instance (MonoMethodSignature *sig)
6539 return sig->hasthis;
6543 * mono_signature_param_is_out
6544 * @sig: the method signature inspected
6545 * @param_num: the 0-based index of the inspected parameter
6547 * Returns: #TRUE if the parameter is an out parameter, #FALSE
6551 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6553 g_assert (param_num >= 0 && param_num < sig->param_count);
6554 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6558 * mono_signature_explicit_this:
6559 * @sig: the method signature inspected
6561 * Returns: #TRUE if this the method signature @sig has an explicit
6562 * instance argument. #FALSE otherwise.
6565 mono_signature_explicit_this (MonoMethodSignature *sig)
6567 return sig->explicit_this;
6570 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6572 mono_aligned_addr_hash (gconstpointer ptr)
6574 return GPOINTER_TO_UINT (ptr) >> 3;
6578 * If @field belongs to an inflated generic class, return the corresponding field of the
6579 * generic type definition class.
6582 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6587 if (!field->parent->generic_class)
6590 gtd = field->parent->generic_class->container_class;
6591 offset = field - field->parent->fields;
6592 return gtd->fields + offset;
6596 * If @event belongs to an inflated generic class, return the corresponding event of the
6597 * generic type definition class.
6600 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6605 if (!event->parent->generic_class)
6608 gtd = event->parent->generic_class->container_class;
6609 offset = event - event->parent->ext->events;
6610 return gtd->ext->events + offset;
6614 * If @property belongs to an inflated generic class, return the corresponding property of the
6615 * generic type definition class.
6618 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6623 if (!property->parent->generic_class)
6626 gtd = property->parent->generic_class->container_class;
6627 offset = property - property->parent->ext->properties;
6628 return gtd->ext->properties + offset;
6632 mono_method_get_wrapper_cache (MonoMethod *method)
6634 if (method->is_inflated) {
6635 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
6636 return &imethod->owner->wrapper_caches;
6638 return &method->klass->image->wrapper_caches;