2 * metadata.c: Routines for accessing the metadata
5 * Miguel de Icaza (miguel@ximian.com)
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
18 #include "tabledefs.h"
19 #include "mono-endian.h"
21 #include "tokentype.h"
22 #include "class-internals.h"
23 #include "metadata-internals.h"
24 #include "verify-internals.h"
27 #include "debug-helpers.h"
28 #include "abi-details.h"
29 #include <mono/utils/mono-error-internals.h>
30 #include <mono/utils/bsearch.h>
32 /* Auxiliary structure used for caching inflated signatures */
34 MonoMethodSignature *sig;
35 MonoGenericContext context;
36 } MonoInflatedMethodSignature;
38 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container, gboolean transient,
39 const char *ptr, const char **rptr);
41 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
42 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
43 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
44 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
45 gboolean signature_only);
46 static void free_generic_inst (MonoGenericInst *ginst);
47 static void free_generic_class (MonoGenericClass *ginst);
48 static void free_inflated_method (MonoMethodInflated *method);
49 static void free_inflated_signature (MonoInflatedMethodSignature *sig);
50 static void mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva, MonoMarshalSpec **marshal_spec, gboolean alloc_from_image);
53 * This enumeration is used to describe the data types in the metadata
64 /* Index into Blob heap */
67 /* Index into String heap */
73 /* Pointer into a table */
76 /* HasConstant:Parent pointer (Param, Field or Property) */
79 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
82 /* CustomAttributeType encoded index */
85 /* HasDeclSecurity index: TypeDef Method or Assembly */
88 /* Implementation coded index: File, Export AssemblyRef */
91 /* HasFieldMarshal coded index: Field or Param table */
94 /* MemberForwardedIndex: Field or Method */
97 /* TypeDefOrRef coded index: typedef, typeref, typespec */
100 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
103 /* MethodDefOrRef coded index: Method or Member Ref table */
106 /* HasSemantic coded index: Event or Property */
109 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
113 const static unsigned char TableSchemas [] = {
114 #define ASSEMBLY_SCHEMA_OFFSET 0
115 MONO_MT_UINT32, /* "HashId" }, */
116 MONO_MT_UINT16, /* "Major" }, */
117 MONO_MT_UINT16, /* "Minor" }, */
118 MONO_MT_UINT16, /* "BuildNumber" }, */
119 MONO_MT_UINT16, /* "RevisionNumber" }, */
120 MONO_MT_UINT32, /* "Flags" }, */
121 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
122 MONO_MT_STRING_IDX, /* "Name" }, */
123 MONO_MT_STRING_IDX, /* "Culture" }, */
126 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
127 MONO_MT_UINT32, /* "OSPlatformID" }, */
128 MONO_MT_UINT32, /* "OSMajor" }, */
129 MONO_MT_UINT32, /* "OSMinor" }, */
132 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
133 MONO_MT_UINT32, /* "Processor" }, */
136 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
137 MONO_MT_UINT16, /* "Major" }, */
138 MONO_MT_UINT16, /* "Minor" }, */
139 MONO_MT_UINT16, /* "Build" }, */
140 MONO_MT_UINT16, /* "Revision" }, */
141 MONO_MT_UINT32, /* "Flags" }, */
142 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
143 MONO_MT_STRING_IDX, /* "Name" }, */
144 MONO_MT_STRING_IDX, /* "Culture" }, */
145 MONO_MT_BLOB_IDX, /* "HashValue" }, */
148 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
149 MONO_MT_UINT32, /* "OSPlatformID" }, */
150 MONO_MT_UINT32, /* "OSMajorVersion" }, */
151 MONO_MT_UINT32, /* "OSMinorVersion" }, */
152 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
155 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
156 MONO_MT_UINT32, /* "Processor" }, */
157 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
160 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
161 MONO_MT_UINT16, /* "PackingSize" }, */
162 MONO_MT_UINT32, /* "ClassSize" }, */
163 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
166 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
167 MONO_MT_UINT8, /* "Type" }, */
168 MONO_MT_UINT8, /* "PaddingZero" }, */
169 MONO_MT_CONST_IDX, /* "Parent" }, */
170 MONO_MT_BLOB_IDX, /* "Value" }, */
173 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
174 MONO_MT_HASCAT_IDX, /* "Parent" }, */
175 MONO_MT_CAT_IDX, /* "Type" }, */
176 MONO_MT_BLOB_IDX, /* "Value" }, */
179 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
180 MONO_MT_UINT16, /* "Action" }, */
181 MONO_MT_HASDEC_IDX, /* "Parent" }, */
182 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
185 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
186 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
187 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
190 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
191 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
192 MONO_MT_STRING_IDX, /* "Name" }, */
193 MONO_MT_TDOR_IDX, /* "EventType" }, TypeDef or TypeRef or TypeSpec */
196 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
197 MONO_MT_TABLE_IDX, /* "Event" }, */
200 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
201 MONO_MT_UINT32, /* "Flags" }, */
202 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
203 MONO_MT_STRING_IDX, /* "TypeName" }, */
204 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
205 MONO_MT_IMPL_IDX, /* "Implementation" }, */
208 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
209 MONO_MT_UINT16, /* "Flags" }, */
210 MONO_MT_STRING_IDX, /* "Name" }, */
211 MONO_MT_BLOB_IDX, /* "Signature" }, */
214 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
215 MONO_MT_UINT32, /* "Offset" }, */
216 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
219 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
220 MONO_MT_HFM_IDX, /* "Parent" }, */
221 MONO_MT_BLOB_IDX, /* "NativeType" }, */
224 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
225 MONO_MT_UINT32, /* "RVA" }, */
226 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
229 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
230 MONO_MT_TABLE_IDX, /* "Field" }, */
233 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
234 MONO_MT_UINT32, /* "Flags" }, */
235 MONO_MT_STRING_IDX, /* "Name" }, */
236 MONO_MT_BLOB_IDX, /* "Value" }, */
239 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
240 MONO_MT_UINT16, /* "MappingFlag" }, */
241 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
242 MONO_MT_STRING_IDX, /* "ImportName" }, */
243 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
246 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
247 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
248 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
251 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
252 MONO_MT_UINT32, /* "Offset" }, */
253 MONO_MT_UINT32, /* "Flags" }, */
254 MONO_MT_STRING_IDX, /* "Name" }, */
255 MONO_MT_IMPL_IDX, /* "Implementation" }, */
258 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
259 MONO_MT_MRP_IDX, /* "Class" }, */
260 MONO_MT_STRING_IDX, /* "Name" }, */
261 MONO_MT_BLOB_IDX, /* "Signature" }, */
264 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
265 MONO_MT_UINT32, /* "RVA" }, */
266 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
267 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
268 MONO_MT_STRING_IDX, /* "Name" }, */
269 MONO_MT_BLOB_IDX, /* "Signature" }, */
270 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
273 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
274 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
275 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
276 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
279 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
280 MONO_MT_UINT16, /* "MethodSemantic" }, */
281 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
282 MONO_MT_HS_IDX, /* "Association" }, */
285 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
286 MONO_MT_TABLE_IDX, /* "Method" }, */
289 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
290 MONO_MT_UINT16, /* "Generation" }, */
291 MONO_MT_STRING_IDX, /* "Name" }, */
292 MONO_MT_GUID_IDX, /* "MVID" }, */
293 MONO_MT_GUID_IDX, /* "EncID" }, */
294 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
297 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
298 MONO_MT_STRING_IDX, /* "Name" }, */
301 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
302 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
303 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
306 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
307 MONO_MT_UINT16, /* "Flags" }, */
308 MONO_MT_UINT16, /* "Sequence" }, */
309 MONO_MT_STRING_IDX, /* "Name" }, */
312 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
313 MONO_MT_TABLE_IDX, /* "Param" }, */
316 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
317 MONO_MT_UINT16, /* "Flags" }, */
318 MONO_MT_STRING_IDX, /* "Name" }, */
319 MONO_MT_BLOB_IDX, /* "Type" }, */
322 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
323 MONO_MT_TABLE_IDX, /* "Property" }, */
326 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
327 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
328 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
331 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
332 MONO_MT_BLOB_IDX, /* "Signature" }, */
335 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
336 MONO_MT_UINT32, /* "Flags" }, */
337 MONO_MT_STRING_IDX, /* "Name" }, */
338 MONO_MT_STRING_IDX, /* "Namespace" }, */
339 MONO_MT_TDOR_IDX, /* "Extends" }, */
340 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
341 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
344 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
345 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
346 MONO_MT_STRING_IDX, /* "Name" }, */
347 MONO_MT_STRING_IDX, /* "Namespace" }, */
350 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
351 MONO_MT_BLOB_IDX, /* "Signature" }, */
354 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
355 MONO_MT_UINT16, /* "Number" }, */
356 MONO_MT_UINT16, /* "Flags" }, */
357 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
358 MONO_MT_STRING_IDX, /* "Name" }, */
361 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
362 MONO_MT_MDOR_IDX, /* "Method" }, */
363 MONO_MT_BLOB_IDX, /* "Signature" }, */
366 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
367 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
368 MONO_MT_TDOR_IDX, /* "Constraint" }, */
371 #define DOCUMENT_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
372 MONO_MT_BLOB_IDX, /* Name */
373 MONO_MT_GUID_IDX, /* HashAlgorithm */
374 MONO_MT_BLOB_IDX, /* Hash */
375 MONO_MT_GUID_IDX, /* Language */
378 #define METHODBODY_SCHEMA_OFFSET DOCUMENT_SCHEMA_OFFSET + 5
379 MONO_MT_TABLE_IDX, /* Document */
380 MONO_MT_BLOB_IDX, /* SequencePoints */
383 #define LOCALSCOPE_SCHEMA_OFFSET METHODBODY_SCHEMA_OFFSET + 3
384 MONO_MT_TABLE_IDX, /* Method */
385 MONO_MT_TABLE_IDX, /* ImportScope */
386 MONO_MT_TABLE_IDX, /* VariableList */
387 MONO_MT_TABLE_IDX, /* ConstantList */
388 MONO_MT_UINT32, /* StartOffset */
389 MONO_MT_UINT32, /* Length */
392 #define LOCALVARIABLE_SCHEMA_OFFSET LOCALSCOPE_SCHEMA_OFFSET + 7
393 MONO_MT_UINT16, /* Attributes */
394 MONO_MT_UINT16, /* Index */
395 MONO_MT_STRING_IDX, /* Name */
398 #define NULL_SCHEMA_OFFSET LOCALVARIABLE_SCHEMA_OFFSET + 4
402 /* Must be the same order as MONO_TABLE_* */
403 const static unsigned char
404 table_description [] = {
405 MODULE_SCHEMA_OFFSET,
406 TYPEREF_SCHEMA_OFFSET,
407 TYPEDEF_SCHEMA_OFFSET,
408 FIELD_POINTER_SCHEMA_OFFSET,
410 METHOD_POINTER_SCHEMA_OFFSET,
411 METHOD_SCHEMA_OFFSET,
412 PARAM_POINTER_SCHEMA_OFFSET,
414 IFACEMAP_SCHEMA_OFFSET,
415 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
416 CONSTANT_SCHEMA_OFFSET,
417 CUSTOM_ATTR_SCHEMA_OFFSET,
418 FIELD_MARSHAL_SCHEMA_OFFSET,
419 DECL_SEC_SCHEMA_OFFSET,
420 CLASS_LAYOUT_SCHEMA_OFFSET,
421 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
422 STDALON_SIG_SCHEMA_OFFSET,
423 EVENTMAP_SCHEMA_OFFSET,
424 EVENT_POINTER_SCHEMA_OFFSET,
426 PROPERTY_MAP_SCHEMA_OFFSET,
427 PROPERTY_POINTER_SCHEMA_OFFSET,
428 PROPERTY_SCHEMA_OFFSET,
429 METHOD_SEMA_SCHEMA_OFFSET,
430 METHOD_IMPL_SCHEMA_OFFSET,
431 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
432 TYPESPEC_SCHEMA_OFFSET,
433 IMPLMAP_SCHEMA_OFFSET,
434 FIELD_RVA_SCHEMA_OFFSET,
437 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
438 ASSEMBLYPROC_SCHEMA_OFFSET,
439 ASSEMBLYOS_SCHEMA_OFFSET,
440 ASSEMBLYREF_SCHEMA_OFFSET,
441 ASSEMBLYREFPROC_SCHEMA_OFFSET,
442 ASSEMBLYREFOS_SCHEMA_OFFSET,
444 EXPORTED_TYPE_SCHEMA_OFFSET,
445 MANIFEST_SCHEMA_OFFSET,
446 NESTED_CLASS_SCHEMA_OFFSET,
447 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
448 METHOD_SPEC_SCHEMA_OFFSET,
449 GEN_CONSTRAINT_SCHEMA_OFFSET,
453 DOCUMENT_SCHEMA_OFFSET, /* 0x30 */
454 METHODBODY_SCHEMA_OFFSET,
455 LOCALSCOPE_SCHEMA_OFFSET,
456 LOCALVARIABLE_SCHEMA_OFFSET
459 #ifdef HAVE_ARRAY_ELEM_INIT
460 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
461 #define MSGSTRFIELD1(line) str##line
462 static const struct msgstr_t {
463 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
464 #include "mono/cil/tables.def"
467 #define TABLEDEF(a,b) b,
468 #include "mono/cil/tables.def"
471 static const gint16 tableidx [] = {
472 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
473 #include "mono/cil/tables.def"
478 #define TABLEDEF(a,b) b,
479 static const char* const
480 mono_tables_names [] = {
481 #include "mono/cil/tables.def"
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_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_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)
1608 MonoType *type, *cached;
1610 gboolean byref = FALSE;
1611 gboolean pinned = FALSE;
1612 const char *tmp_ptr;
1617 * According to the spec, custom modifiers should come before the byref
1618 * flag, but the IL produced by ilasm from the following signature:
1619 * object modopt(...) &
1620 * starts with a byref flag, followed by the modifiers. (bug #49802)
1621 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1622 * it would be better to treat byref as real type constructor instead of
1624 * Also, pinned should come before anything else, but some MSV++ produced
1625 * assemblies violate this (#bug 61990).
1628 /* Count the modifiers first */
1633 case MONO_TYPE_PINNED:
1634 case MONO_TYPE_BYREF:
1637 case MONO_TYPE_CMOD_REQD:
1638 case MONO_TYPE_CMOD_OPT:
1640 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1650 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1651 type = transient ? g_malloc0 (size) : mono_image_alloc0 (m, size);
1652 type->num_mods = count;
1654 g_warning ("got more than 64 modifiers in type");
1657 memset (type, 0, MONO_SIZEOF_TYPE);
1660 /* Parse pinned, byref and custom modifiers */
1665 case MONO_TYPE_PINNED:
1669 case MONO_TYPE_BYREF:
1673 case MONO_TYPE_CMOD_REQD:
1674 case MONO_TYPE_CMOD_OPT:
1675 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1683 type->attrs = opt_attrs;
1684 type->byref = byref;
1685 type->pinned = pinned ? 1 : 0;
1687 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr)) {
1694 if (!type->num_mods && !transient) {
1695 /* no need to free type here, because it is on the stack */
1696 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1697 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1699 /* Consider the case:
1701 class Foo<T> { class Bar {} }
1702 class Test : Foo<Test>.Bar {}
1704 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1705 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1707 We ensure that the MonoClass is in a state that we can canonicalize to:
1709 klass->byval_arg.data.klass == klass
1710 klass->this_arg.data.klass == klass
1712 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1714 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1715 of a MonoClass which currently holds the loader lock. 'type' is local.
1717 if (ret->data.klass == type->data.klass) {
1721 /* No need to use locking since nobody is modifying the hash table */
1722 if ((cached = g_hash_table_lookup (type_cache, type))) {
1727 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1729 if (type == &stype) {
1730 type = transient ? g_malloc (MONO_SIZEOF_TYPE) : mono_image_alloc (m, MONO_SIZEOF_TYPE);
1731 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1738 mono_metadata_parse_type_checked (MonoImage *m, MonoGenericContainer *container,
1739 short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1743 mono_error_init (error);
1745 ret = mono_metadata_parse_type_internal (m, container, opt_attrs, transient, ptr, rptr);
1748 if (mono_loader_get_last_error ())
1749 mono_error_set_from_loader_error (error);
1751 mono_error_set_bad_image (error, m, "Could not parse type at %p due to unknown reasons", ptr);
1759 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container,
1760 short opt_attrs, const char *ptr, const char **rptr)
1762 return mono_metadata_parse_type_internal (m, container, opt_attrs, FALSE, ptr, rptr);
1766 * LOCKING: Acquires the loader lock.
1769 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1770 const char *ptr, const char **rptr)
1772 return mono_metadata_parse_type_full (m, NULL, opt_attrs, ptr, rptr);
1776 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1778 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1779 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1780 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1782 if (def < methodt->rows)
1783 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1785 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1787 for (i = param_index; i < lastp; ++i) {
1788 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1797 * mono_metadata_get_param_attrs:
1799 * @m The image to loader parameter attributes from
1800 * @def method def token (one based)
1801 * @param_count number of params to decode including the return value
1803 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1804 * returned memory needs to be freed by the caller. If all the param attributes are
1805 * 0, then NULL is returned.
1808 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1810 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1811 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1812 guint32 cols [MONO_PARAM_SIZE];
1813 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1816 if (def < methodt->rows)
1817 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1819 lastp = paramt->rows + 1;
1821 for (i = param_index; i < lastp; ++i) {
1822 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1823 if (cols [MONO_PARAM_FLAGS]) {
1825 pattrs = g_new0 (int, param_count);
1826 /* at runtime we just ignore this kind of malformed file:
1827 * the verifier can signal the error to the user
1829 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1831 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1840 * mono_metadata_parse_signature:
1841 * @image: metadata context
1842 * @toke: metadata token
1844 * Decode a method signature stored in the STANDALONESIG table
1846 * Returns: a MonoMethodSignature describing the signature.
1848 MonoMethodSignature*
1849 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1852 MonoMethodSignature *ret;
1853 MonoTableInfo *tables = image->tables;
1854 guint32 idx = mono_metadata_token_index (token);
1858 if (image_is_dynamic (image))
1859 return mono_lookup_dynamic_token (image, token, NULL);
1861 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1863 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1865 ptr = mono_metadata_blob_heap (image, sig);
1866 mono_metadata_decode_blob_size (ptr, &ptr);
1868 ret = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, &error);
1869 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1874 * mono_metadata_signature_alloc:
1875 * @image: metadata context
1876 * @nparmas: number of parameters in the signature
1878 * Allocate a MonoMethodSignature structure with the specified number of params.
1879 * The return type and the params types need to be filled later.
1880 * This is a Mono runtime internal function.
1882 * LOCKING: Assumes the loader lock is held.
1884 * Returns: the new MonoMethodSignature structure.
1886 MonoMethodSignature*
1887 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1889 MonoMethodSignature *sig;
1891 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1892 sig->param_count = nparams;
1893 sig->sentinelpos = -1;
1898 static MonoMethodSignature*
1899 mono_metadata_signature_dup_internal_with_padding (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig, size_t padding)
1901 int sigsize, sig_header_size;
1902 MonoMethodSignature *ret;
1903 sigsize = sig_header_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *) + padding;
1905 sigsize += MONO_SIZEOF_TYPE;
1908 ret = mono_image_alloc (image, sigsize);
1910 ret = mono_mempool_alloc (mp, sigsize);
1912 ret = g_malloc (sigsize);
1915 memcpy (ret, sig, sig_header_size - padding);
1917 // Copy return value because of ownership semantics.
1919 // Danger! Do not alter padding use without changing the dup_add_this below
1920 intptr_t end_of_header = (intptr_t)( (char*)(ret) + sig_header_size);
1921 ret->ret = (MonoType *)end_of_header;
1922 memcpy (ret->ret, sig->ret, MONO_SIZEOF_TYPE);
1928 static MonoMethodSignature*
1929 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1931 return mono_metadata_signature_dup_internal_with_padding (image, mp, sig, 0);
1934 * signature_dup_add_this:
1936 * Make a copy of @sig, adding an explicit this argument.
1938 MonoMethodSignature*
1939 mono_metadata_signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
1941 MonoMethodSignature *ret;
1942 ret = mono_metadata_signature_dup_internal_with_padding (image, NULL, sig, sizeof (MonoType *));
1944 ret->param_count = sig->param_count + 1;
1945 ret->hasthis = FALSE;
1947 for (int i = sig->param_count - 1; i >= 0; i --)
1948 ret->params [i + 1] = sig->params [i];
1949 ret->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
1951 for (int i = sig->param_count - 1; i >= 0; i --)
1952 g_assert(ret->params [i + 1]->type == sig->params [i]->type && ret->params [i+1]->type != MONO_TYPE_END);
1953 g_assert (ret->ret->type == sig->ret->type && ret->ret->type != MONO_TYPE_END);
1960 MonoMethodSignature*
1961 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1963 MonoMethodSignature *ret = mono_metadata_signature_dup_internal (image, NULL, sig);
1965 for (int i = 0 ; i < sig->param_count; i ++)
1966 g_assert(ret->params [i]->type == sig->params [i]->type);
1967 g_assert (ret->ret->type == sig->ret->type);
1972 /*The mempool is accessed without synchronization*/
1973 MonoMethodSignature*
1974 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1976 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1980 * mono_metadata_signature_dup:
1981 * @sig: method signature
1983 * Duplicate an existing MonoMethodSignature so it can be modified.
1984 * This is a Mono runtime internal function.
1986 * Returns: the new MonoMethodSignature structure.
1988 MonoMethodSignature*
1989 mono_metadata_signature_dup (MonoMethodSignature *sig)
1991 return mono_metadata_signature_dup_full (NULL, sig);
1995 * mono_metadata_signature_size:
1997 * Return the amount of memory allocated to SIG.
2000 mono_metadata_signature_size (MonoMethodSignature *sig)
2002 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
2006 * mono_metadata_parse_method_signature:
2007 * @m: metadata context
2008 * @generic_container: generics container
2009 * @def: the MethodDef index or 0 for Ref signatures.
2010 * @ptr: pointer to the signature metadata representation
2011 * @rptr: pointer updated to match the end of the decoded stream
2013 * Decode a method signature stored at @ptr.
2014 * This is a Mono runtime internal function.
2016 * LOCKING: Assumes the loader lock is held.
2018 * Returns: a MonoMethodSignature describing the signature.
2020 MonoMethodSignature *
2021 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
2022 int def, const char *ptr, const char **rptr, MonoError *error)
2024 MonoMethodSignature *method;
2025 int i, *pattrs = NULL;
2026 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
2027 guint32 gen_param_count = 0;
2028 gboolean is_open = FALSE;
2030 mono_error_init (error);
2033 gen_param_count = 1;
2038 call_convention = *ptr & 0x0F;
2040 if (gen_param_count)
2041 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
2042 param_count = mono_metadata_decode_value (ptr, &ptr);
2045 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 */
2047 method = mono_metadata_signature_alloc (m, param_count);
2048 method->hasthis = hasthis;
2049 method->explicit_this = explicit_this;
2050 method->call_convention = call_convention;
2051 method->generic_param_count = gen_param_count;
2053 if (call_convention != 0xa) {
2054 method->ret = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [0] : 0, FALSE, ptr, &ptr, error);
2056 mono_metadata_free_method_signature (method);
2060 is_open = mono_class_is_open_constructed_type (method->ret);
2063 for (i = 0; i < method->param_count; ++i) {
2064 if (*ptr == MONO_TYPE_SENTINEL) {
2065 if (method->call_convention != MONO_CALL_VARARG || def) {
2066 mono_loader_assert_no_error ();
2067 mono_error_set_bad_image (error, m, "Found sentinel for methoddef or no vararg");
2071 if (method->sentinelpos >= 0) {
2072 mono_loader_assert_no_error ();
2073 mono_error_set_bad_image (error, m, "Found sentinel twice in the same signature.");
2077 method->sentinelpos = i;
2080 method->params [i] = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [i+1] : 0, FALSE, ptr, &ptr, error);
2081 if (!method->params [i]) {
2082 mono_metadata_free_method_signature (method);
2087 is_open = mono_class_is_open_constructed_type (method->params [i]);
2090 /* The sentinel could be missing if the caller does not pass any additional arguments */
2091 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
2092 method->sentinelpos = method->param_count;
2094 method->has_type_parameters = is_open;
2096 if (def && (method->call_convention == MONO_CALL_VARARG))
2097 method->sentinelpos = method->param_count;
2104 * Add signature to a cache and increase ref count...
2107 mono_loader_assert_no_error ();
2112 * mono_metadata_parse_method_signature:
2113 * @m: metadata context
2114 * @def: the MethodDef index or 0 for Ref signatures.
2115 * @ptr: pointer to the signature metadata representation
2116 * @rptr: pointer updated to match the end of the decoded stream
2118 * Decode a method signature stored at @ptr.
2119 * This is a Mono runtime internal function.
2121 * LOCKING: Assumes the loader lock is held.
2123 * Returns: a MonoMethodSignature describing the signature.
2125 MonoMethodSignature *
2126 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
2129 * This function MUST NOT be called by runtime code as it does error handling incorrectly.
2130 * Use mono_metadata_parse_method_signature_full instead.
2131 * It's ok to asser on failure as we no longer use it.
2134 MonoMethodSignature *ret;
2135 ret = mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr, &error);
2136 g_assert (mono_error_ok (&error));
2142 * mono_metadata_free_method_signature:
2143 * @sig: signature to destroy
2145 * Free the memory allocated in the signature @sig.
2146 * This method needs to be robust and work also on partially-built
2147 * signatures, so it does extra checks.
2150 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2152 /* Everything is allocated from mempools */
2156 mono_metadata_free_type (sig->ret);
2157 for (i = 0; i < sig->param_count; ++i) {
2158 if (sig->params [i])
2159 mono_metadata_free_type (sig->params [i]);
2165 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2169 /* Allocated in inflate_generic_signature () */
2171 mono_metadata_free_type (sig->ret);
2172 for (i = 0; i < sig->param_count; ++i) {
2173 if (sig->params [i])
2174 mono_metadata_free_type (sig->params [i]);
2180 inflated_method_equal (gconstpointer a, gconstpointer b)
2182 const MonoMethodInflated *ma = a;
2183 const MonoMethodInflated *mb = b;
2184 if (ma->declaring != mb->declaring)
2186 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2190 inflated_method_hash (gconstpointer a)
2192 const MonoMethodInflated *ma = a;
2193 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring));
2197 inflated_signature_equal (gconstpointer a, gconstpointer b)
2199 const MonoInflatedMethodSignature *sig1 = a;
2200 const MonoInflatedMethodSignature *sig2 = b;
2202 /* sig->sig is assumed to be canonized */
2203 if (sig1->sig != sig2->sig)
2205 /* The generic instances are canonized */
2206 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2210 inflated_signature_hash (gconstpointer a)
2212 const MonoInflatedMethodSignature *sig = a;
2214 /* sig->sig is assumed to be canonized */
2215 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2219 dump_ginst (MonoGenericInst *ginst)
2224 g_print ("Ginst: <");
2225 for (i = 0; i < ginst->type_argc; ++i) {
2228 name = mono_type_get_name (ginst->type_argv [i]);
2229 g_print ("%s", name);
2235 static gboolean type_in_image (MonoType *type, MonoImage *image);
2238 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2240 gpointer iter = NULL;
2243 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2244 if (type_in_image (p, image))
2247 return type_in_image (mono_signature_get_return_type (sig), image);
2251 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2255 for (i = 0; i < ginst->type_argc; ++i) {
2256 if (type_in_image (ginst->type_argv [i], image))
2264 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2266 return gclass->container_class->image == image ||
2267 ginst_in_image (gclass->context.class_inst, image);
2271 type_in_image (MonoType *type, MonoImage *image)
2274 switch (type->type) {
2275 case MONO_TYPE_GENERICINST:
2276 return gclass_in_image (type->data.generic_class, image);
2278 type = type->data.type;
2280 case MONO_TYPE_SZARRAY:
2281 type = &type->data.klass->byval_arg;
2283 case MONO_TYPE_ARRAY:
2284 type = &type->data.array->eklass->byval_arg;
2286 case MONO_TYPE_FNPTR:
2287 return signature_in_image (type->data.method, image);
2288 case MONO_TYPE_VAR: {
2289 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2291 g_assert (!container->is_method);
2293 * FIXME: The following check is here solely
2294 * for monodis, which uses the internal
2296 * mono_metadata_load_generic_params(). The
2297 * caller of that function needs to fill in
2298 * owner->klass or owner->method of the
2299 * returned struct, but monodis doesn't do
2300 * that. The image unloading depends on that,
2301 * however, so a crash results without this
2304 if (!container->owner.klass)
2305 return container->image == image;
2306 return container->owner.klass->image == image;
2308 return type->data.generic_param->image == image;
2311 case MONO_TYPE_MVAR: {
2312 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2313 if (type->data.generic_param->image == image)
2316 g_assert (container->is_method);
2317 if (!container->owner.method)
2318 /* RefEmit created generic param whose method is not finished */
2319 return container->image == image;
2320 return container->owner.method->klass->image == image;
2322 return type->data.generic_param->image == image;
2326 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2327 return image == mono_class_from_mono_type (type)->image;
2332 image_sets_lock (void)
2334 mono_mutex_lock (&image_sets_mutex);
2338 image_sets_unlock (void)
2340 mono_mutex_unlock (&image_sets_mutex);
2346 * Return a MonoImageSet representing the set of images in IMAGES.
2348 static MonoImageSet*
2349 get_image_set (MonoImage **images, int nimages)
2356 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2357 return mscorlib_image_set;
2359 /* Happens with empty generic instances */
2361 return mscorlib_image_set;
2366 image_sets = g_ptr_array_new ();
2368 if (images [0] == mono_defaults.corlib && nimages > 1)
2369 l = images [1]->image_sets;
2371 l = images [0]->image_sets;
2374 for (; l; l = l->next) {
2377 if (set->nimages == nimages) {
2378 for (j = 0; j < nimages; ++j) {
2379 for (k = 0; k < nimages; ++k)
2380 if (set->images [k] == images [j])
2394 set = g_new0 (MonoImageSet, 1);
2395 set->nimages = nimages;
2396 set->images = g_new0 (MonoImage*, nimages);
2397 mono_mutex_init_recursive (&set->lock);
2398 for (i = 0; i < nimages; ++i)
2399 set->images [i] = images [i];
2400 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2401 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2402 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2403 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2405 for (i = 0; i < nimages; ++i)
2406 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2408 g_ptr_array_add (image_sets, set);
2411 if (nimages == 1 && images [0] == mono_defaults.corlib) {
2412 mono_memory_barrier ();
2413 mscorlib_image_set = set;
2416 image_sets_unlock ();
2422 delete_image_set (MonoImageSet *set)
2426 g_hash_table_destroy (set->gclass_cache);
2427 g_hash_table_destroy (set->ginst_cache);
2428 g_hash_table_destroy (set->gmethod_cache);
2429 g_hash_table_destroy (set->gsignature_cache);
2431 mono_wrapper_caches_free (&set->wrapper_caches);
2435 for (i = 0; i < set->nimages; ++i)
2436 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2438 g_ptr_array_remove (image_sets, set);
2440 image_sets_unlock ();
2443 mono_mempool_destroy (set->mempool);
2444 g_free (set->images);
2445 mono_mutex_destroy (&set->lock);
2450 mono_image_set_lock (MonoImageSet *set)
2452 mono_mutex_lock (&set->lock);
2456 mono_image_set_unlock (MonoImageSet *set)
2458 mono_mutex_unlock (&set->lock);
2462 mono_image_set_alloc (MonoImageSet *set, guint size)
2466 mono_image_set_lock (set);
2468 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2469 res = mono_mempool_alloc (set->mempool, size);
2470 mono_image_set_unlock (set);
2476 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2480 mono_image_set_lock (set);
2482 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2483 res = mono_mempool_alloc0 (set->mempool, size);
2484 mono_image_set_unlock (set);
2490 mono_image_set_strdup (MonoImageSet *set, const char *s)
2494 mono_image_set_lock (set);
2496 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2497 res = mono_mempool_strdup (set->mempool, s);
2498 mono_image_set_unlock (set);
2504 * Structure used by the collect_..._images functions to store the image list.
2507 MonoImage *image_buf [64];
2509 int nimages, images_len;
2513 collect_data_init (CollectData *data)
2515 data->images = data->image_buf;
2516 data->images_len = 64;
2521 collect_data_free (CollectData *data)
2523 if (data->images != data->image_buf)
2524 g_free (data->images);
2528 enlarge_data (CollectData *data)
2530 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2531 MonoImage **d = g_new (MonoImage *, new_len);
2534 g_assert_not_reached ();
2535 memcpy (d, data->images, data->images_len);
2536 if (data->images != data->image_buf)
2537 g_free (data->images);
2539 data->images_len = new_len;
2543 add_image (MonoImage *image, CollectData *data)
2547 /* The arrays are small, so use a linear search instead of a hash table */
2548 for (i = 0; i < data->nimages; ++i)
2549 if (data->images [i] == image)
2552 if (data->nimages == data->images_len)
2553 enlarge_data (data);
2555 data->images [data->nimages ++] = image;
2559 collect_type_images (MonoType *type, CollectData *data);
2562 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2566 for (i = 0; i < ginst->type_argc; ++i) {
2567 collect_type_images (ginst->type_argv [i], data);
2572 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2574 add_image (gclass->container_class->image, data);
2575 if (gclass->context.class_inst)
2576 collect_ginst_images (gclass->context.class_inst, data);
2580 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2582 gpointer iter = NULL;
2585 collect_type_images (mono_signature_get_return_type (sig), data);
2586 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2587 collect_type_images (p, data);
2591 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2593 collect_signature_images (sig->sig, data);
2594 if (sig->context.class_inst)
2595 collect_ginst_images (sig->context.class_inst, data);
2596 if (sig->context.method_inst)
2597 collect_ginst_images (sig->context.method_inst, data);
2601 collect_method_images (MonoMethodInflated *method, CollectData *data)
2603 MonoMethod *m = method->declaring;
2605 add_image (method->declaring->klass->image, data);
2606 if (method->context.class_inst)
2607 collect_ginst_images (method->context.class_inst, data);
2608 if (method->context.method_inst)
2609 collect_ginst_images (method->context.method_inst, data);
2611 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2613 if (image_is_dynamic (m->klass->image))
2614 collect_signature_images (mono_method_signature (m), data);
2618 collect_type_images (MonoType *type, CollectData *data)
2621 switch (type->type) {
2622 case MONO_TYPE_GENERICINST:
2623 collect_gclass_images (type->data.generic_class, data);
2626 type = type->data.type;
2628 case MONO_TYPE_SZARRAY:
2629 type = &type->data.klass->byval_arg;
2631 case MONO_TYPE_ARRAY:
2632 type = &type->data.array->eklass->byval_arg;
2634 case MONO_TYPE_FNPTR:
2635 //return signature_in_image (type->data.method, image);
2636 g_assert_not_reached ();
2637 case MONO_TYPE_VAR: {
2638 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2640 g_assert (!container->is_method);
2642 * FIXME: The following check is here solely
2643 * for monodis, which uses the internal
2645 * mono_metadata_load_generic_params(). The
2646 * caller of that function needs to fill in
2647 * owner->klass or owner->method of the
2648 * returned struct, but monodis doesn't do
2649 * that. The image unloading depends on that,
2650 * however, so a crash results without this
2653 if (!container->owner.klass)
2654 add_image (container->image, data);
2656 add_image (container->owner.klass->image, data);
2658 add_image (type->data.generic_param->image, data);
2662 case MONO_TYPE_MVAR: {
2663 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2664 if (type->data.generic_param->image)
2665 add_image (type->data.generic_param->image, data);
2667 if (!container->owner.method) {
2668 /* RefEmit created generic param whose method is not finished */
2669 add_image (container->image, data);
2671 g_assert (container->is_method);
2672 add_image (container->owner.method->klass->image, data);
2675 add_image (type->data.generic_param->image, data);
2679 case MONO_TYPE_CLASS:
2680 case MONO_TYPE_VALUETYPE:
2681 add_image (mono_class_from_mono_type (type)->image, data);
2684 add_image (mono_defaults.corlib, data);
2691 } CleanForImageUserData;
2694 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2696 MonoGenericClass *gclass = key;
2697 CleanForImageUserData *user_data = data;
2699 g_assert (gclass_in_image (gclass, user_data->image));
2701 user_data->list = g_slist_prepend (user_data->list, gclass);
2706 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2708 MonoGenericInst *ginst = key;
2709 CleanForImageUserData *user_data = data;
2711 // This doesn't work during corlib compilation
2712 //g_assert (ginst_in_image (ginst, user_data->image));
2714 user_data->list = g_slist_prepend (user_data->list, ginst);
2719 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2721 MonoImage *image = data;
2722 MonoMethodInflated *method = key;
2725 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2726 g_assert (method->declaring->klass->image == image ||
2727 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2728 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2734 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2736 MonoImage *image = data;
2737 MonoInflatedMethodSignature *sig = key;
2739 return signature_in_image (sig->sig, image) ||
2740 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2741 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2745 check_gmethod (gpointer key, gpointer value, gpointer data)
2747 MonoMethodInflated *method = key;
2748 MonoImage *image = data;
2750 if (method->context.class_inst)
2751 g_assert (!ginst_in_image (method->context.class_inst, image));
2752 if (method->context.method_inst)
2753 g_assert (!ginst_in_image (method->context.method_inst, image));
2754 if (((MonoMethod*)method)->signature)
2755 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2761 * Run a consistency check on the image set data structures.
2763 static G_GNUC_UNUSED void
2764 check_image_sets (MonoImage *image)
2767 GSList *l = image->image_sets;
2772 for (i = 0; i < image_sets->len; ++i) {
2773 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2775 if (!g_slist_find (l, set)) {
2776 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2782 mono_metadata_clean_for_image (MonoImage *image)
2784 CleanForImageUserData ginst_data, gclass_data;
2785 GSList *l, *set_list;
2787 //check_image_sets (image);
2790 * The data structures could reference each other so we delete them in two phases.
2791 * This is required because of the hashing functions in gclass/ginst_cache.
2793 ginst_data.image = gclass_data.image = image;
2794 ginst_data.list = gclass_data.list = NULL;
2796 /* Collect the items to delete */
2797 /* delete_image_set () modifies the lists so make a copy */
2798 for (l = image->image_sets; l; l = l->next) {
2799 MonoImageSet *set = l->data;
2801 mono_image_set_lock (set);
2802 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2803 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2804 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2805 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2806 mono_image_set_unlock (set);
2809 /* Delete the removed items */
2810 for (l = ginst_data.list; l; l = l->next)
2811 free_generic_inst (l->data);
2812 for (l = gclass_data.list; l; l = l->next)
2813 free_generic_class (l->data);
2814 g_slist_free (ginst_data.list);
2815 g_slist_free (gclass_data.list);
2816 /* delete_image_set () modifies the lists so make a copy */
2817 set_list = g_slist_copy (image->image_sets);
2818 for (l = set_list; l; l = l->next) {
2819 MonoImageSet *set = l->data;
2821 delete_image_set (set);
2823 g_slist_free (set_list);
2827 free_inflated_method (MonoMethodInflated *imethod)
2830 MonoMethod *method = (MonoMethod*)imethod;
2832 if (method->signature)
2833 mono_metadata_free_inflated_signature (method->signature);
2835 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))) {
2836 MonoMethodHeader *header = imethod->header;
2839 /* Allocated in inflate_generic_header () */
2840 for (i = 0; i < header->num_locals; ++i)
2841 mono_metadata_free_type (header->locals [i]);
2842 g_free (header->clauses);
2851 free_generic_inst (MonoGenericInst *ginst)
2855 /* The ginst itself is allocated from the image set mempool */
2856 for (i = 0; i < ginst->type_argc; ++i)
2857 mono_metadata_free_type (ginst->type_argv [i]);
2861 free_generic_class (MonoGenericClass *gclass)
2863 /* The gclass itself is allocated from the image set mempool */
2864 if (gclass->is_dynamic)
2865 mono_reflection_free_dynamic_generic_class (gclass);
2866 if (gclass->cached_class && gclass->cached_class->interface_id)
2867 mono_unload_interface_id (gclass->cached_class);
2871 free_inflated_signature (MonoInflatedMethodSignature *sig)
2873 mono_metadata_free_inflated_signature (sig->sig);
2878 * mono_metadata_get_inflated_signature:
2880 * Given an inflated signature and a generic context, return a canonical copy of the
2881 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2883 MonoMethodSignature *
2884 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2886 MonoInflatedMethodSignature helper;
2887 MonoInflatedMethodSignature *res;
2892 helper.context.class_inst = context->class_inst;
2893 helper.context.method_inst = context->method_inst;
2895 collect_data_init (&data);
2897 collect_inflated_signature_images (&helper, &data);
2899 set = get_image_set (data.images, data.nimages);
2901 collect_data_free (&data);
2903 mono_image_set_lock (set);
2905 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2907 res = g_new0 (MonoInflatedMethodSignature, 1);
2909 res->context.class_inst = context->class_inst;
2910 res->context.method_inst = context->method_inst;
2911 g_hash_table_insert (set->gsignature_cache, res, res);
2914 mono_image_set_unlock (set);
2920 mono_metadata_get_image_set_for_method (MonoMethodInflated *method)
2923 CollectData image_set_data;
2925 collect_data_init (&image_set_data);
2926 collect_method_images (method, &image_set_data);
2927 set = get_image_set (image_set_data.images, image_set_data.nimages);
2928 collect_data_free (&image_set_data);
2934 * mono_metadata_get_generic_inst:
2936 * Given a list of types, return a MonoGenericInst that represents that list.
2937 * The returned MonoGenericInst has its own copy of the list of types. The list
2938 * passed in the argument can be freed, modified or disposed of.
2942 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2944 MonoGenericInst *ginst;
2947 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2951 for (i = 0; i < type_argc; ++i)
2952 if (mono_class_is_open_constructed_type (type_argv [i]))
2954 is_open = (i < type_argc);
2956 ginst = g_alloca (size);
2957 memset (ginst, 0, sizeof (MonoGenericInst));
2958 ginst->is_open = is_open;
2959 ginst->type_argc = type_argc;
2960 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2962 collect_data_init (&data);
2964 collect_ginst_images (ginst, &data);
2966 set = get_image_set (data.images, data.nimages);
2968 collect_data_free (&data);
2970 mono_image_set_lock (set);
2972 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2974 ginst = mono_image_set_alloc0 (set, size);
2975 #ifndef MONO_SMALL_CONFIG
2976 ginst->id = ++next_generic_inst_id;
2978 ginst->is_open = is_open;
2979 ginst->type_argc = type_argc;
2981 for (i = 0; i < type_argc; ++i)
2982 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2984 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2987 mono_image_set_unlock (set);
2992 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2994 MonoGenericContainer *container = container_class->generic_container;
2996 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2998 return inst == container->context.class_inst;
3002 * mono_metadata_lookup_generic_class:
3004 * Returns a MonoGenericClass with the given properties.
3008 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
3010 MonoGenericClass *gclass;
3011 MonoGenericClass helper;
3012 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
3016 helper.container_class = container_class;
3017 helper.context.class_inst = inst;
3018 helper.context.method_inst = NULL;
3019 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
3020 helper.is_tb_open = is_tb_open;
3021 helper.cached_class = NULL;
3023 collect_data_init (&data);
3025 collect_gclass_images (&helper, &data);
3027 set = get_image_set (data.images, data.nimages);
3029 collect_data_free (&data);
3031 mono_image_set_lock (set);
3033 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
3035 /* A tripwire just to keep us honest */
3036 g_assert (!helper.cached_class);
3039 mono_image_set_unlock (set);
3044 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
3045 gclass = &dgclass->generic_class;
3046 gclass->is_dynamic = 1;
3048 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
3051 gclass->is_tb_open = is_tb_open;
3052 gclass->container_class = container_class;
3053 gclass->context.class_inst = inst;
3054 gclass->context.method_inst = NULL;
3055 gclass->owner = set;
3056 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
3057 gclass->cached_class = container_class;
3059 g_hash_table_insert (set->gclass_cache, gclass, gclass);
3061 mono_image_set_unlock (set);
3067 * mono_metadata_inflate_generic_inst:
3069 * Instantiate the generic instance @ginst with the context @context.
3070 * Check @error for success.
3074 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
3076 MonoType **type_argv;
3077 MonoGenericInst *nginst = NULL;
3080 mono_error_init (error);
3082 if (!ginst->is_open)
3085 type_argv = g_new0 (MonoType*, ginst->type_argc);
3087 for (i = 0; i < ginst->type_argc; i++) {
3088 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
3089 if (!mono_error_ok (error))
3094 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
3097 for (i = 0; i < count; i++)
3098 mono_metadata_free_type (type_argv [i]);
3105 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
3106 int count, const char *ptr, const char **rptr)
3108 MonoType **type_argv;
3109 MonoGenericInst *ginst;
3112 type_argv = g_new0 (MonoType*, count);
3114 for (i = 0; i < count; i++) {
3115 MonoType *t = mono_metadata_parse_type_full (m, container, 0, ptr, &ptr);
3126 ginst = mono_metadata_get_generic_inst (count, type_argv);
3134 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3135 const char *ptr, const char **rptr)
3137 MonoGenericInst *inst;
3142 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
3146 gklass = mono_class_from_mono_type (gtype);
3147 if (!gklass->generic_container)
3150 count = mono_metadata_decode_value (ptr, &ptr);
3151 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
3158 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3164 * @gc: The generic container to normalize
3165 * @type: The kind of generic parameters the resulting generic-container should contain
3168 static MonoGenericContainer *
3169 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3171 gboolean is_var = (type == MONO_TYPE_VAR);
3175 g_assert (is_var || type == MONO_TYPE_MVAR);
3178 if (gc->is_method || gc->parent)
3180 * The current MonoGenericContainer is a generic method -> its `parent'
3181 * points to the containing class'es container.
3190 * mono_metadata_parse_generic_param:
3191 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3192 * see mono_metadata_parse_type_full() for details.
3193 * Internal routine to parse a generic type parameter.
3194 * LOCKING: Acquires the loader lock
3196 static MonoGenericParam *
3197 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3198 MonoTypeEnum type, const char *ptr, const char **rptr, MonoError *error)
3200 int index = mono_metadata_decode_value (ptr, &ptr);
3204 mono_error_init (error);
3206 generic_container = select_container (generic_container, type);
3207 if (!generic_container) {
3208 /* Create dummy MonoGenericParam */
3209 MonoGenericParam *param;
3211 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3218 if (index >= generic_container->type_argc) {
3219 mono_error_set_bad_image (error, m, "Invalid generic %s parameter index %d, max index is %d",
3220 generic_container->is_method ? "method" : "type",
3221 index, generic_container->type_argc);
3225 //This can't return NULL
3226 return mono_generic_container_get_param (generic_container, index);
3230 * mono_metadata_get_shared_type:
3232 * Return a shared instance of TYPE, if available, NULL otherwise.
3233 * Shared MonoType instances help save memory. Their contents should not be modified
3234 * by the caller. They do not need to be freed as their lifetime is bound by either
3235 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3236 * instance they are embedded in. If they are freed, they should be freed using
3237 * mono_metadata_free_type () instead of g_free ().
3240 mono_metadata_get_shared_type (MonoType *type)
3244 /* No need to use locking since nobody is modifying the hash table */
3245 if ((cached = g_hash_table_lookup (type_cache, type)))
3248 switch (type->type){
3249 case MONO_TYPE_CLASS:
3250 case MONO_TYPE_VALUETYPE:
3251 if (type == &type->data.klass->byval_arg)
3253 if (type == &type->data.klass->this_arg)
3264 compare_type_literals (MonoImage *image, int class_type, int type_type, MonoError *error)
3266 mono_error_init (error);
3268 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3269 * See mcs/test/gtest-440. and #650936.
3270 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3274 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3277 if (class_type == type_type)
3280 if (type_type == MONO_TYPE_CLASS) {
3281 if (class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT)
3283 //XXX stringify this argument
3284 mono_error_set_bad_image (error, image, "Expected reference type but got type kind %d", class_type);
3288 g_assert (type_type == MONO_TYPE_VALUETYPE);
3289 switch (class_type) {
3290 case MONO_TYPE_BOOLEAN:
3291 case MONO_TYPE_CHAR:
3304 case MONO_TYPE_CLASS:
3307 //XXX stringify this argument
3308 mono_error_set_bad_image (error, image, "Expected value type but got type kind %d", class_type);
3314 verify_var_type_and_container (MonoImage *image, int var_type, MonoGenericContainer *container, MonoError *error)
3316 mono_error_init (error);
3317 if (var_type == MONO_TYPE_MVAR) {
3318 if (!container->is_method) { //MVAR and a method container
3319 mono_error_set_bad_image (error, image, "MVAR parsed in a context without a method container");
3323 if (!(!container->is_method || //VAR and class container
3324 (container->is_method && container->parent))) { //VAR and method container with parent
3325 mono_error_set_bad_image (error, image, "VAR parsed in a context without a class container");
3333 * do_mono_metadata_parse_type:
3334 * @type: MonoType to be filled in with the return value
3336 * @generic_context: generics_context
3337 * @transient: whenever to allocate data from the heap
3338 * @ptr: pointer to the encoded type
3339 * @rptr: pointer where the end of the encoded type is saved
3341 * Internal routine used to "fill" the contents of @type from an
3342 * allocated pointer. This is done this way to avoid doing too
3343 * many mini-allocations (particularly for the MonoFieldType which
3344 * most of the time is just a MonoType, but sometimes might be augmented).
3346 * This routine is used by mono_metadata_parse_type and
3347 * mono_metadata_parse_field_type
3349 * This extracts a Type as specified in Partition II (22.2.12)
3351 * Returns: FALSE if the type could not be loaded
3354 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3355 gboolean transient, const char *ptr, const char **rptr)
3358 type->type = mono_metadata_decode_value (ptr, &ptr);
3360 switch (type->type){
3361 case MONO_TYPE_VOID:
3362 case MONO_TYPE_BOOLEAN:
3363 case MONO_TYPE_CHAR:
3376 case MONO_TYPE_STRING:
3377 case MONO_TYPE_OBJECT:
3378 case MONO_TYPE_TYPEDBYREF:
3380 case MONO_TYPE_VALUETYPE:
3381 case MONO_TYPE_CLASS: {
3385 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3386 class = mono_class_get_checked (m, token, &error);
3387 type->data.klass = class;
3389 mono_loader_set_error_from_mono_error (&error);
3390 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3394 if (!compare_type_literals (m, class->byval_arg.type, type->type, &error)) {
3395 mono_loader_set_error_from_mono_error (&error);
3396 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3402 case MONO_TYPE_SZARRAY: {
3404 MonoType *etype = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, &error);
3406 mono_loader_set_error_from_mono_error (&error);
3407 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
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: {
3416 type->data.type = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, &error);
3417 if (!type->data.type) {
3418 mono_loader_set_error_from_mono_error (&error);
3419 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3424 case MONO_TYPE_FNPTR: {
3426 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr, &error);
3427 if (!type->data.method) {
3428 mono_loader_set_error_from_mono_error (&error);
3429 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3434 case MONO_TYPE_ARRAY: {
3436 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr, &error);
3437 if (!type->data.array) {
3438 mono_loader_set_error_from_mono_error (&error);
3439 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3444 case MONO_TYPE_MVAR:
3445 case MONO_TYPE_VAR: {
3447 if (container && !verify_var_type_and_container (m, type->type, container, &error)) {
3448 mono_loader_set_error_from_mono_error (&error);
3449 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3452 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr, &error);
3453 if (!type->data.generic_param) {
3454 mono_loader_set_error_from_mono_error (&error);
3455 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3460 case MONO_TYPE_GENERICINST:
3461 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
3464 g_warning ("type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3474 * mono_metadata_free_type:
3475 * @type: type to free
3477 * Free the memory allocated for type @type which is allocated on the heap.
3480 mono_metadata_free_type (MonoType *type)
3482 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3485 switch (type->type){
3486 case MONO_TYPE_OBJECT:
3487 case MONO_TYPE_STRING:
3488 if (!type->data.klass)
3491 case MONO_TYPE_CLASS:
3492 case MONO_TYPE_VALUETYPE:
3493 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3497 mono_metadata_free_type (type->data.type);
3499 case MONO_TYPE_FNPTR:
3500 mono_metadata_free_method_signature (type->data.method);
3502 case MONO_TYPE_ARRAY:
3503 mono_metadata_free_array (type->data.array);
3514 hex_dump (const char *buffer, int base, int count)
3516 int show_header = 1;
3524 for (i = 0; i < count; i++){
3527 printf ("\n0x%08x: ", (unsigned char) base + i);
3529 printf ("%02x ", (unsigned char) (buffer [i]));
3536 * @ptr: Points to the beginning of the Section Data (25.3)
3538 static MonoExceptionClause*
3539 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3541 unsigned char sect_data_flags;
3543 guint32 sect_data_len;
3544 MonoExceptionClause* clauses = NULL;
3547 /* align on 32-bit boundary */
3548 ptr = dword_align (ptr);
3549 sect_data_flags = *ptr;
3552 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3554 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3557 sect_data_len = ptr [0];
3561 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3562 const unsigned char *p = dword_align (ptr);
3564 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3565 /* we could just store a pointer if we don't need to byteswap */
3566 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3567 for (i = 0; i < *num_clauses; ++i) {
3568 MonoExceptionClause *ec = &clauses [i];
3571 ec->flags = read32 (p);
3572 ec->try_offset = read32 (p + 4);
3573 ec->try_len = read32 (p + 8);
3574 ec->handler_offset = read32 (p + 12);
3575 ec->handler_len = read32 (p + 16);
3576 tof_value = read32 (p + 20);
3579 ec->flags = read16 (p);
3580 ec->try_offset = read16 (p + 2);
3581 ec->try_len = *(p + 4);
3582 ec->handler_offset = read16 (p + 5);
3583 ec->handler_len = *(p + 7);
3584 tof_value = read32 (p + 8);
3587 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3588 ec->data.filter_offset = tof_value;
3589 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3590 ec->data.catch_class = NULL;
3593 ec->data.catch_class = mono_class_get_checked (m, tof_value, &error);
3594 if (!mono_error_ok (&error)) {
3595 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3601 ec->data.catch_class = NULL;
3603 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3607 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3608 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3615 * mono_method_get_header_summary:
3616 * @method: The method to get the header.
3617 * @summary: Where to store the header
3620 * Returns: true if the header was properly decoded.
3623 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3629 unsigned char flags, format;
3632 /*Only the GMD has a pointer to the metadata.*/
3633 while (method->is_inflated)
3634 method = ((MonoMethodInflated*)method)->declaring;
3636 summary->code_size = 0;
3637 summary->has_clauses = FALSE;
3639 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3640 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))
3643 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3644 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3647 summary->code_size = header->code_size;
3648 summary->has_clauses = header->num_clauses > 0;
3653 idx = mono_metadata_token_index (method->token);
3654 img = method->klass->image;
3655 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3657 /*We must run the verifier since we'll be decoding it.*/
3658 if (!mono_verifier_verify_method_header (img, rva, NULL))
3661 ptr = mono_image_rva_map (img, rva);
3664 flags = *(const unsigned char *)ptr;
3665 format = flags & METHOD_HEADER_FORMAT_MASK;
3668 case METHOD_HEADER_TINY_FORMAT:
3670 summary->code_size = flags >> 2;
3672 case METHOD_HEADER_FAT_FORMAT:
3673 fat_flags = read16 (ptr);
3675 summary->code_size = read32 (ptr);
3676 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3677 summary->has_clauses = TRUE;
3686 * mono_metadata_parse_mh_full:
3687 * @m: metadata context
3688 * @generic_context: generics context
3689 * @ptr: pointer to the method header.
3691 * Decode the method header at @ptr, including pointer to the IL code,
3692 * info about local variables and optional exception tables.
3693 * This is a Mono runtime internal function.
3695 * LOCKING: Acquires the loader lock.
3697 * Returns: a transient MonoMethodHeader allocated from the heap.
3700 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3702 MonoMethodHeader *mh = NULL;
3703 unsigned char flags = *(const unsigned char *) ptr;
3704 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3706 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3707 const unsigned char *code;
3708 MonoExceptionClause* clauses = NULL;
3709 int num_clauses = 0;
3710 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3711 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3713 g_return_val_if_fail (ptr != NULL, NULL);
3716 case METHOD_HEADER_TINY_FORMAT:
3717 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3720 mh->is_transient = TRUE;
3721 local_var_sig_tok = 0;
3722 mh->code_size = flags >> 2;
3723 mh->code = (unsigned char*)ptr;
3725 case METHOD_HEADER_FAT_FORMAT:
3726 fat_flags = read16 (ptr);
3728 max_stack = read16 (ptr);
3730 code_size = read32 (ptr);
3732 local_var_sig_tok = read32 (ptr);
3735 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3740 code = (unsigned char*)ptr;
3742 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3746 * There are more sections
3748 ptr = (char*)code + code_size;
3754 if (local_var_sig_tok) {
3755 int idx = (local_var_sig_tok & 0xffffff)-1;
3756 if (idx >= t->rows || idx < 0)
3758 mono_metadata_decode_row (t, idx, cols, 1);
3760 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3763 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3764 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3765 if (local_var_sig_tok) {
3766 const char *locals_ptr;
3769 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3770 mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3771 if (*locals_ptr != 0x07)
3772 g_warning ("wrong signature for locals blob");
3774 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3775 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3776 mh->num_locals = len;
3777 for (i = 0; i < len; ++i) {
3778 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3779 0, TRUE, locals_ptr, &locals_ptr);
3780 if (!mh->locals [i])
3784 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3787 mh->code_size = code_size;
3788 mh->max_stack = max_stack;
3789 mh->is_transient = TRUE;
3790 mh->init_locals = init_locals;
3792 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3793 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3795 mh->clauses = clausesp;
3796 mh->num_clauses = num_clauses;
3807 * mono_metadata_parse_mh:
3808 * @generic_context: generics context
3809 * @ptr: pointer to the method header.
3811 * Decode the method header at @ptr, including pointer to the IL code,
3812 * info about local variables and optional exception tables.
3814 * Returns: a transient MonoMethodHeader allocated from the heap.
3817 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3819 return mono_metadata_parse_mh_full (m, NULL, ptr);
3823 * mono_metadata_free_mh:
3824 * @mh: a method header
3826 * Free the memory allocated for the method header.
3829 mono_metadata_free_mh (MonoMethodHeader *mh)
3833 /* If it is not transient it means it's part of a wrapper method,
3834 * or a SRE-generated method, so the lifetime in that case is
3835 * dictated by the method's own lifetime
3837 if (mh->is_transient) {
3838 for (i = 0; i < mh->num_locals; ++i)
3839 mono_metadata_free_type (mh->locals [i]);
3845 * mono_method_header_get_code:
3846 * @header: a MonoMethodHeader pointer
3847 * @code_size: memory location for returning the code size
3848 * @max_stack: memory location for returning the max stack
3850 * Method header accessor to retreive info about the IL code properties:
3851 * a pointer to the IL code itself, the size of the code and the max number
3852 * of stack slots used by the code.
3854 * Returns: pointer to the IL code represented by the method header.
3856 const unsigned char*
3857 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3860 *code_size = header->code_size;
3862 *max_stack = header->max_stack;
3863 return header->code;
3867 * mono_method_header_get_locals:
3868 * @header: a MonoMethodHeader pointer
3869 * @num_locals: memory location for returning the number of local variables
3870 * @init_locals: memory location for returning the init_locals flag
3872 * Method header accessor to retreive info about the local variables:
3873 * an array of local types, the number of locals and whether the locals
3874 * are supposed to be initialized to 0 on method entry
3876 * Returns: pointer to an array of types of the local variables
3879 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3882 *num_locals = header->num_locals;
3884 *init_locals = header->init_locals;
3885 return header->locals;
3889 * mono_method_header_get_num_clauses:
3890 * @header: a MonoMethodHeader pointer
3892 * Method header accessor to retreive the number of exception clauses.
3894 * Returns: the number of exception clauses present
3897 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3899 return header->num_clauses;
3903 * mono_method_header_get_clauses:
3904 * @header: a MonoMethodHeader pointer
3905 * @method: MonoMethod the header belongs to
3906 * @iter: pointer to a iterator
3907 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3909 * Get the info about the exception clauses in the method. Set *iter to NULL to
3910 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3911 * At each iteration, the structure pointed to by clause if filled with the
3912 * exception clause information.
3914 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3918 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3920 MonoExceptionClause *sc;
3921 /* later we'll be able to use this interface to parse the clause info on demand,
3922 * without allocating anything.
3924 if (!iter || !header->num_clauses)
3927 *iter = sc = header->clauses;
3933 if (sc < header->clauses + header->num_clauses) {
3942 * mono_metadata_parse_field_type:
3943 * @m: metadata context to extract information from
3944 * @ptr: pointer to the field signature
3945 * @rptr: pointer updated to match the end of the decoded stream
3947 * Parses the field signature, and returns the type information for it.
3949 * Returns: The MonoType that was extracted from @ptr.
3952 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3954 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3958 * mono_metadata_parse_param:
3959 * @m: metadata context to extract information from
3960 * @ptr: pointer to the param signature
3961 * @rptr: pointer updated to match the end of the decoded stream
3963 * Parses the param signature, and returns the type information for it.
3965 * Returns: The MonoType that was extracted from @ptr.
3968 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3970 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3974 * mono_metadata_token_from_dor:
3975 * @dor_token: A TypeDefOrRef coded index
3977 * dor_token is a TypeDefOrRef coded index: it contains either
3978 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3979 * bits contain an index into the table.
3981 * Returns: an expanded token
3984 mono_metadata_token_from_dor (guint32 dor_index)
3988 table = dor_index & 0x03;
3989 idx = dor_index >> 2;
3992 case 0: /* TypeDef */
3993 return MONO_TOKEN_TYPE_DEF | idx;
3994 case 1: /* TypeRef */
3995 return MONO_TOKEN_TYPE_REF | idx;
3996 case 2: /* TypeSpec */
3997 return MONO_TOKEN_TYPE_SPEC | idx;
3999 g_assert_not_reached ();
4006 * We use this to pass context information to the row locator
4009 int idx; /* The index that we are trying to locate */
4010 int col_idx; /* The index in the row where idx may be stored */
4011 MonoTableInfo *t; /* pointer to the table */
4016 * How the row locator works.
4021 * ___|___------> _______
4024 * A column in the rows of table A references an index in table B.
4025 * For example A may be the TYPEDEF table and B the METHODDEF table.
4027 * Given an index in table B we want to get the row in table A
4028 * where the column n references our index in B.
4030 * In the locator_t structure:
4032 * col_idx is the column number
4033 * index is the index in table B
4034 * result will be the index in table A
4037 * Table A Table B column (in table A)
4038 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
4039 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
4040 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
4041 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
4042 * METHODSEM PROPERTY ASSOCIATION (encoded index)
4044 * Note that we still don't support encoded indexes.
4048 typedef_locator (const void *a, const void *b)
4050 locator_t *loc = (locator_t *) a;
4051 const char *bb = (const char *) b;
4052 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
4053 guint32 col, col_next;
4055 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
4061 * Need to check that the next row is valid.
4063 if (typedef_index + 1 < loc->t->rows) {
4064 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
4065 if (loc->idx >= col_next)
4068 if (col == col_next)
4072 loc->result = typedef_index;
4078 table_locator (const void *a, const void *b)
4080 locator_t *loc = (locator_t *) a;
4081 const char *bb = (const char *) b;
4082 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4085 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4087 if (loc->idx == col) {
4088 loc->result = table_index;
4098 declsec_locator (const void *a, const void *b)
4100 locator_t *loc = (locator_t *) a;
4101 const char *bb = (const char *) b;
4102 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4105 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4107 if (loc->idx == col) {
4108 loc->result = table_index;
4120 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
4121 * which contains IDX.
4124 search_ptr_table (MonoImage *image, int table, int idx)
4126 MonoTableInfo *ptrdef = &image->tables [table];
4129 /* Use a linear search to find our index in the table */
4130 for (i = 0; i < ptrdef->rows; i ++)
4131 /* All the Ptr tables have the same structure */
4132 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
4135 if (i < ptrdef->rows)
4142 * mono_metadata_typedef_from_field:
4143 * @meta: metadata context
4144 * @index: FieldDef token
4146 * Returns: the 1-based index into the TypeDef table of the type that
4147 * declared the field described by @index, or 0 if not found.
4150 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
4152 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4158 loc.idx = mono_metadata_token_index (index);
4159 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
4162 if (meta->uncompressed_metadata)
4163 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4165 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4168 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4169 return loc.result + 1;
4173 * mono_metadata_typedef_from_method:
4174 * @meta: metadata context
4175 * @index: MethodDef token
4177 * Returns: the 1-based index into the TypeDef table of the type that
4178 * declared the method described by @index. 0 if not found.
4181 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
4183 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4189 loc.idx = mono_metadata_token_index (index);
4190 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
4193 if (meta->uncompressed_metadata)
4194 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
4196 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4199 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4200 return loc.result + 1;
4204 * mono_metadata_interfaces_from_typedef_full:
4205 * @meta: metadata context
4206 * @index: typedef token
4207 * @interfaces: Out parameter used to store the interface array
4208 * @count: Out parameter used to store the number of interfaces
4209 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
4210 * @context: The generic context
4212 * The array of interfaces that the @index typedef token implements is returned in
4213 * @interfaces. The number of elements in the array is returned in @count.
4216 * Returns: TRUE on success, FALSE on failure.
4219 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context, MonoError *error)
4221 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
4224 guint32 cols [MONO_INTERFACEIMPL_SIZE];
4230 mono_error_init (error);
4235 loc.idx = mono_metadata_token_index (index);
4236 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
4239 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4244 * We may end up in the middle of the rows...
4247 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4253 while (pos < tdef->rows) {
4254 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4255 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4260 if (heap_alloc_result)
4261 result = g_new0 (MonoClass*, pos - start);
4263 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4266 while (pos < tdef->rows) {
4269 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4270 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4272 iface = mono_class_get_and_inflate_typespec_checked (
4273 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context, error);
4276 result [pos - start] = iface;
4279 *count = pos - start;
4280 *interfaces = result;
4285 * @meta: metadata context
4286 * @index: typedef token
4287 * @count: Out parameter used to store the number of interfaces
4289 * The array of interfaces that the @index typedef token implements is returned in
4290 * @interfaces. The number of elements in the array is returned in @count. The returned
4291 * array is g_malloc'd and the caller must free it.
4293 * LOCKING: Acquires the loader lock .
4295 * Returns: the interface array on success, NULL on failure.
4299 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4302 MonoClass **interfaces = NULL;
4305 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL, &error);
4306 g_assert (mono_error_ok (&error)); /* FIXME dont swallow the error */
4314 * mono_metadata_nested_in_typedef:
4315 * @meta: metadata context
4316 * @index: typedef token
4318 * Returns: the 1-based index into the TypeDef table of the type
4319 * where the type described by @index is nested.
4320 * Returns 0 if @index describes a non-nested type.
4323 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4325 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4331 loc.idx = mono_metadata_token_index (index);
4332 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4335 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4338 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4339 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4343 * mono_metadata_nesting_typedef:
4344 * @meta: metadata context
4345 * @index: typedef token
4347 * Returns: the 1-based index into the TypeDef table of the first type
4348 * that is nested inside the type described by @index. The search starts at
4349 * @start_index. returns 0 if no such type is found.
4352 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4354 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4356 guint32 class_index = mono_metadata_token_index (index);
4361 start = start_index;
4363 while (start <= tdef->rows) {
4364 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4370 if (start > tdef->rows)
4377 * mono_metadata_packing_from_typedef:
4378 * @meta: metadata context
4379 * @index: token representing a type
4381 * Returns: the info stored in the ClassLAyout table for the given typedef token
4382 * into the @packing and @size pointers.
4383 * Returns 0 if the info is not found.
4386 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4388 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4390 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4395 loc.idx = mono_metadata_token_index (index);
4396 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4399 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4402 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4404 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4406 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4408 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4409 return loc.result + 1;
4413 * mono_metadata_custom_attrs_from_index:
4414 * @meta: metadata context
4415 * @index: token representing the parent
4417 * Returns: the 1-based index into the CustomAttribute table of the first
4418 * attribute which belongs to the metadata object described by @index.
4419 * Returns 0 if no such attribute is found.
4422 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4424 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4431 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4434 /* FIXME: Index translation */
4436 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4439 /* Find the first entry by searching backwards */
4440 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4443 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4444 return loc.result + 1;
4448 * mono_metadata_declsec_from_index:
4449 * @meta: metadata context
4450 * @index: token representing the parent
4452 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4453 * attribute which belongs to the metadata object described by @index.
4454 * Returns -1 if no such attribute is found.
4457 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4459 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4466 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4469 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4472 /* Find the first entry by searching backwards */
4473 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4480 * mono_metadata_localscope_from_methoddef:
4481 * @meta: metadata context
4482 * @index: methoddef index
4484 * Returns: the 1-based index into the LocalScope table of the first
4485 * scope which belongs to the method described by @index.
4486 * Returns 0 if no such row is found.
4489 mono_metadata_localscope_from_methoddef (MonoImage *meta, guint32 index)
4491 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_LOCALSCOPE];
4498 loc.col_idx = MONO_LOCALSCOPE_METHOD;
4501 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4504 /* Find the first entry by searching backwards */
4505 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_LOCALSCOPE_METHOD) == index))
4508 return loc.result + 1;
4513 mono_backtrace (int limit)
4518 backtrace (array, limit);
4519 names = backtrace_symbols (array, limit);
4520 for (i =0; i < limit; ++i) {
4521 g_print ("\t%s\n", names [i]);
4527 static int i8_align;
4530 * mono_type_set_alignment:
4532 * Set the alignment used by runtime to layout fields etc. of type TYPE to ALIGN.
4533 * This should only be used in AOT mode since the resulting layout will not match the
4537 mono_type_set_alignment (MonoTypeEnum type, int align)
4539 /* Support only a few types whose alignment is abi dependent */
4545 g_assert_not_reached ();
4552 * @t: the type to return the size of
4554 * Returns: the number of bytes required to hold an instance of this
4558 mono_type_size (MonoType *t, int *align)
4560 MonoTypeEnum simple_type;
4567 *align = MONO_ABI_ALIGNOF (gpointer);
4568 return sizeof (gpointer);
4571 simple_type = t->type;
4573 switch (simple_type) {
4574 case MONO_TYPE_VOID:
4577 case MONO_TYPE_BOOLEAN:
4578 *align = MONO_ABI_ALIGNOF (gint8);
4582 *align = MONO_ABI_ALIGNOF (gint8);
4584 case MONO_TYPE_CHAR:
4587 *align = MONO_ABI_ALIGNOF (gint16);
4591 *align = MONO_ABI_ALIGNOF (gint32);
4594 *align = MONO_ABI_ALIGNOF (float);
4598 *align = MONO_ABI_ALIGNOF (gint64);
4601 *align = MONO_ABI_ALIGNOF (double);
4605 *align = MONO_ABI_ALIGNOF (gpointer);
4606 return sizeof (gpointer);
4607 case MONO_TYPE_STRING:
4608 *align = MONO_ABI_ALIGNOF (gpointer);
4609 return sizeof (gpointer);
4610 case MONO_TYPE_OBJECT:
4611 *align = MONO_ABI_ALIGNOF (gpointer);
4612 return sizeof (gpointer);
4613 case MONO_TYPE_VALUETYPE: {
4614 if (t->data.klass->enumtype)
4615 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4617 return mono_class_value_size (t->data.klass, (guint32*)align);
4619 case MONO_TYPE_CLASS:
4620 case MONO_TYPE_SZARRAY:
4622 case MONO_TYPE_FNPTR:
4623 case MONO_TYPE_ARRAY:
4624 *align = MONO_ABI_ALIGNOF (gpointer);
4625 return sizeof (gpointer);
4626 case MONO_TYPE_TYPEDBYREF:
4627 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4628 case MONO_TYPE_GENERICINST: {
4629 MonoGenericClass *gclass = t->data.generic_class;
4630 MonoClass *container_class = gclass->container_class;
4632 // g_assert (!gclass->inst->is_open);
4634 if (container_class->valuetype) {
4635 if (container_class->enumtype)
4636 return mono_type_size (mono_class_enum_basetype (container_class), align);
4638 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4640 *align = MONO_ABI_ALIGNOF (gpointer);
4641 return sizeof (gpointer);
4645 case MONO_TYPE_MVAR:
4646 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4647 *align = MONO_ABI_ALIGNOF (gpointer);
4648 return sizeof (gpointer);
4650 /* The gparam can only match types given by gshared_constraint */
4651 return mono_type_size (t->data.generic_param->gshared_constraint, align);
4655 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4661 * mono_type_stack_size:
4662 * @t: the type to return the size it uses on the stack
4664 * Returns: the number of bytes required to hold an instance of this
4665 * type on the runtime stack
4668 mono_type_stack_size (MonoType *t, int *align)
4670 return mono_type_stack_size_internal (t, align, FALSE);
4674 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4677 MonoTypeEnum simple_type;
4678 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4679 int stack_slot_size = sizeof (gpointer);
4680 int stack_slot_align = MONO_ABI_ALIGNOF (gpointer);
4681 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4682 int stack_slot_size = SIZEOF_REGISTER;
4683 int stack_slot_align = SIZEOF_REGISTER;
4686 g_assert (t != NULL);
4692 *align = stack_slot_align;
4693 return stack_slot_size;
4696 simple_type = t->type;
4697 switch (simple_type) {
4698 case MONO_TYPE_BOOLEAN:
4699 case MONO_TYPE_CHAR:
4708 case MONO_TYPE_STRING:
4709 case MONO_TYPE_OBJECT:
4710 case MONO_TYPE_CLASS:
4711 case MONO_TYPE_SZARRAY:
4713 case MONO_TYPE_FNPTR:
4714 case MONO_TYPE_ARRAY:
4715 *align = stack_slot_align;
4716 return stack_slot_size;
4718 case MONO_TYPE_MVAR:
4719 g_assert (allow_open);
4720 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4721 *align = stack_slot_align;
4722 return stack_slot_size;
4724 /* The gparam can only match types given by gshared_constraint */
4725 return mono_type_stack_size_internal (t->data.generic_param->gshared_constraint, align, allow_open);
4727 case MONO_TYPE_TYPEDBYREF:
4728 *align = stack_slot_align;
4729 return stack_slot_size * 3;
4731 *align = MONO_ABI_ALIGNOF (float);
4732 return sizeof (float);
4735 *align = MONO_ABI_ALIGNOF (gint64);
4736 return sizeof (gint64);
4738 *align = MONO_ABI_ALIGNOF (double);
4739 return sizeof (double);
4740 case MONO_TYPE_VALUETYPE: {
4743 if (t->data.klass->enumtype)
4744 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4746 size = mono_class_value_size (t->data.klass, (guint32*)align);
4748 *align = *align + stack_slot_align - 1;
4749 *align &= ~(stack_slot_align - 1);
4751 size += stack_slot_size - 1;
4752 size &= ~(stack_slot_size - 1);
4757 case MONO_TYPE_GENERICINST: {
4758 MonoGenericClass *gclass = t->data.generic_class;
4759 MonoClass *container_class = gclass->container_class;
4762 g_assert (!gclass->context.class_inst->is_open);
4764 if (container_class->valuetype) {
4765 if (container_class->enumtype)
4766 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4768 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4770 *align = *align + stack_slot_align - 1;
4771 *align &= ~(stack_slot_align - 1);
4773 size += stack_slot_size - 1;
4774 size &= ~(stack_slot_size - 1);
4779 *align = stack_slot_align;
4780 return stack_slot_size;
4784 g_error ("type 0x%02x unknown", t->type);
4790 mono_type_generic_inst_is_valuetype (MonoType *type)
4792 g_assert (type->type == MONO_TYPE_GENERICINST);
4793 return type->data.generic_class->container_class->valuetype;
4797 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4799 return gclass->container_class->valuetype;
4803 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4805 MonoGenericInst *i1 = g1->context.class_inst;
4806 MonoGenericInst *i2 = g2->context.class_inst;
4808 if (g1->is_dynamic != g2->is_dynamic)
4810 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4812 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4814 return g1->is_tb_open == g2->is_tb_open;
4818 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4820 MonoGenericInst *i1 = g1->context.class_inst;
4821 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4823 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4825 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4827 return !g1->is_tb_open;
4831 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4833 /* FIXME: check if this seed is good enough */
4834 guint hash = 0xc01dfee7;
4835 if (context->class_inst)
4836 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4837 if (context->method_inst)
4838 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4843 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4845 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4849 * mono_metadata_str_hash:
4851 * This should be used instead of g_str_hash for computing hash codes visible
4852 * outside this module, since g_str_hash () is not guaranteed to be stable
4853 * (its not the same in eglib for example).
4856 mono_metadata_str_hash (gconstpointer v1)
4858 /* Same as g_str_hash () in glib */
4859 char *p = (char *) v1;
4864 hash = (hash << 5) - hash + *p;
4871 * mono_metadata_type_hash:
4874 * Computes an hash value for @t1 to be used in GHashTable.
4875 * The returned hash is guaranteed to be the same across executions.
4878 mono_metadata_type_hash (MonoType *t1)
4880 guint hash = t1->type;
4882 hash |= t1->byref << 6; /* do not collide with t1->type values */
4884 case MONO_TYPE_VALUETYPE:
4885 case MONO_TYPE_CLASS:
4886 case MONO_TYPE_SZARRAY: {
4887 MonoClass *class = t1->data.klass;
4889 * Dynamic classes must not be hashed on their type since it can change
4890 * during runtime. For example, if we hash a reference type that is
4891 * later made into a valuetype.
4893 * This is specially problematic with generic instances since they are
4894 * inserted in a bunch of hash tables before been finished.
4896 if (image_is_dynamic (class->image))
4897 return (t1->byref << 6) | mono_metadata_str_hash (class->name);
4898 return ((hash << 5) - hash) ^ mono_metadata_str_hash (class->name);
4901 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4902 case MONO_TYPE_ARRAY:
4903 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4904 case MONO_TYPE_GENERICINST:
4905 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4907 case MONO_TYPE_MVAR:
4908 return ((hash << 5) - hash) ^ mono_metadata_generic_param_hash (t1->data.generic_param);
4915 mono_metadata_generic_param_hash (MonoGenericParam *p)
4918 MonoGenericParamInfo *info;
4920 hash = (mono_generic_param_num (p) << 2);
4921 if (p->gshared_constraint)
4922 hash = ((hash << 5) - hash) ^ mono_metadata_type_hash (p->gshared_constraint);
4923 info = mono_generic_param_info (p);
4924 /* Can't hash on the owner klass/method, since those might not be set when this is called */
4926 hash = ((hash << 5) - hash) ^ info->token;
4931 mono_metadata_generic_param_equal_internal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4935 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4937 if (p1->gshared_constraint && p2->gshared_constraint) {
4938 if (!mono_metadata_type_equal (p1->gshared_constraint, p2->gshared_constraint))
4941 if (p1->gshared_constraint != p2->gshared_constraint)
4946 * We have to compare the image as well because if we didn't,
4947 * the generic_inst_cache lookup wouldn't care about the image
4948 * of generic params, so what could happen is that a generic
4949 * inst with params from image A is put into the cache, then
4950 * image B gets that generic inst from the cache, image A is
4951 * unloaded, so the inst is deleted, but image B still retains
4954 * The AOT runtime doesn't set the image when it's decoding
4955 * types, so we only compare it when the owner is NULL.
4957 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4958 (mono_generic_param_owner (p1) || p1->image == p2->image))
4962 * If `signature_only' is true, we're comparing two (method) signatures.
4963 * In this case, the owner of two type parameters doesn't need to match.
4966 return signature_only;
4970 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2)
4972 return mono_metadata_generic_param_equal_internal (p1, p2, TRUE);
4976 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4980 if (c1->generic_class && c2->generic_class)
4981 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4982 if (c1->generic_class && c2->generic_container)
4983 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4984 if (c1->generic_container && c2->generic_class)
4985 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4986 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4987 return mono_metadata_generic_param_equal_internal (
4988 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4989 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4990 return mono_metadata_generic_param_equal_internal (
4991 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4992 if (signature_only &&
4993 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4994 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4995 if (signature_only &&
4996 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
4997 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
5002 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
5004 gpointer iter1 = 0, iter2 = 0;
5008 if (s1->call_convention != s2->call_convention)
5010 if (s1->sentinelpos != s2->sentinelpos)
5012 if (s1->hasthis != s2->hasthis)
5014 if (s1->explicit_this != s2->explicit_this)
5016 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
5018 if (s1->param_count != s2->param_count)
5022 MonoType *t1 = mono_signature_get_params (s1, &iter1);
5023 MonoType *t2 = mono_signature_get_params (s2, &iter2);
5025 if (t1 == NULL || t2 == NULL)
5027 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
5033 * mono_metadata_type_equal:
5037 * Determine if @t1 and @t2 represent the same type.
5038 * Returns: #TRUE if @t1 and @t2 are equal.
5041 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
5043 if (t1->type != t2->type || t1->byref != t2->byref)
5047 case MONO_TYPE_VOID:
5048 case MONO_TYPE_BOOLEAN:
5049 case MONO_TYPE_CHAR:
5060 case MONO_TYPE_STRING:
5063 case MONO_TYPE_OBJECT:
5064 case MONO_TYPE_TYPEDBYREF:
5066 case MONO_TYPE_VALUETYPE:
5067 case MONO_TYPE_CLASS:
5068 case MONO_TYPE_SZARRAY:
5069 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
5071 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
5072 case MONO_TYPE_ARRAY:
5073 if (t1->data.array->rank != t2->data.array->rank)
5075 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
5076 case MONO_TYPE_GENERICINST:
5077 return _mono_metadata_generic_class_equal (
5078 t1->data.generic_class, t2->data.generic_class, signature_only);
5080 return mono_metadata_generic_param_equal_internal (
5081 t1->data.generic_param, t2->data.generic_param, signature_only);
5082 case MONO_TYPE_MVAR:
5083 return mono_metadata_generic_param_equal_internal (
5084 t1->data.generic_param, t2->data.generic_param, signature_only);
5085 case MONO_TYPE_FNPTR:
5086 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
5088 g_error ("implement type compare for %0x!", t1->type);
5096 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
5098 return do_mono_metadata_type_equal (t1, t2, FALSE);
5102 * mono_metadata_type_equal_full:
5105 * @signature_only: if signature only comparison should be made
5107 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
5108 * behaves the same way as mono_metadata_type_equal.
5109 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
5110 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
5113 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
5115 return do_mono_metadata_type_equal (t1, t2, signature_only);
5119 * mono_metadata_signature_equal:
5120 * @sig1: a signature
5121 * @sig2: another signature
5123 * Determine if @sig1 and @sig2 represent the same signature, with the
5124 * same number of arguments and the same types.
5125 * Returns: #TRUE if @sig1 and @sig2 are equal.
5128 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
5132 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
5135 if (sig1->generic_param_count != sig2->generic_param_count)
5139 * We're just comparing the signatures of two methods here:
5141 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
5142 * U and V are equal here.
5144 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
5147 for (i = 0; i < sig1->param_count; i++) {
5148 MonoType *p1 = sig1->params[i];
5149 MonoType *p2 = sig2->params[i];
5151 /* if (p1->attrs != p2->attrs)
5154 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
5158 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
5164 * mono_metadata_type_dup:
5165 * @image: image to alloc memory from
5166 * @original: type to duplicate
5168 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
5171 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
5174 int sizeof_o = MONO_SIZEOF_TYPE;
5176 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
5178 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
5180 memcpy (r, o, sizeof_o);
5182 if (o->type == MONO_TYPE_PTR) {
5183 r->data.type = mono_metadata_type_dup (image, o->data.type);
5184 } else if (o->type == MONO_TYPE_ARRAY) {
5185 r->data.array = mono_dup_array_type (image, o->data.array);
5186 } else if (o->type == MONO_TYPE_FNPTR) {
5187 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
5188 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
5194 mono_signature_hash (MonoMethodSignature *sig)
5196 guint i, res = sig->ret->type;
5198 for (i = 0; i < sig->param_count; i++)
5199 res = (res << 5) - res + mono_type_hash (sig->params[i]);
5205 * mono_metadata_encode_value:
5206 * @value: value to encode
5207 * @buf: buffer where to write the compressed representation
5208 * @endbuf: pointer updated to point at the end of the encoded output
5210 * Encodes the value @value in the compressed representation used
5211 * in metadata and stores the result in @buf. @buf needs to be big
5212 * enough to hold the data (4 bytes).
5215 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
5221 else if (value < 0x4000) {
5222 p [0] = 0x80 | (value >> 8);
5223 p [1] = value & 0xff;
5226 p [0] = (value >> 24) | 0xc0;
5227 p [1] = (value >> 16) & 0xff;
5228 p [2] = (value >> 8) & 0xff;
5229 p [3] = value & 0xff;
5237 * mono_metadata_field_info:
5238 * @meta: the Image the field is defined in
5239 * @index: the index in the field table representing the field
5240 * @offset: a pointer to an integer where to store the offset that
5241 * may have been specified for the field in a FieldLayout table
5242 * @rva: a pointer to the RVA of the field data in the image that
5243 * may have been defined in a FieldRVA table
5244 * @marshal_spec: a pointer to the marshal spec that may have been
5245 * defined for the field in a FieldMarshal table.
5247 * Gather info for field @index that may have been defined in the FieldLayout,
5248 * FieldRVA and FieldMarshal tables.
5249 * Either of offset, rva and marshal_spec can be NULL if you're not interested
5253 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5254 MonoMarshalSpec **marshal_spec)
5256 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
5260 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5261 MonoMarshalSpec **marshal_spec)
5263 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
5267 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5268 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
5270 MonoTableInfo *tdef;
5273 loc.idx = index + 1;
5274 if (meta->uncompressed_metadata)
5275 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
5278 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
5280 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
5283 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5284 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
5286 *offset = (guint32)-1;
5290 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
5292 loc.col_idx = MONO_FIELD_RVA_FIELD;
5295 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5297 * LAMESPEC: There is no signature, no nothing, just the raw data.
5299 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
5307 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
5308 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, meta, p);
5315 * mono_metadata_get_constant_index:
5316 * @meta: the Image the field is defined in
5317 * @index: the token that may have a row defined in the constants table
5318 * @hint: possible position for the row
5320 * @token must be a FieldDef, ParamDef or PropertyDef token.
5322 * Returns: the index into the Constants table or 0 if not found.
5325 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
5327 MonoTableInfo *tdef;
5329 guint32 index = mono_metadata_token_index (token);
5331 tdef = &meta->tables [MONO_TABLE_CONSTANT];
5332 index <<= MONO_HASCONSTANT_BITS;
5333 switch (mono_metadata_token_table (token)) {
5334 case MONO_TABLE_FIELD:
5335 index |= MONO_HASCONSTANT_FIEDDEF;
5337 case MONO_TABLE_PARAM:
5338 index |= MONO_HASCONSTANT_PARAM;
5340 case MONO_TABLE_PROPERTY:
5341 index |= MONO_HASCONSTANT_PROPERTY;
5344 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5348 loc.col_idx = MONO_CONSTANT_PARENT;
5351 /* FIXME: Index translation */
5353 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5356 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5357 return loc.result + 1;
5363 * mono_metadata_events_from_typedef:
5364 * @meta: metadata context
5365 * @index: 0-based index (in the TypeDef table) describing a type
5367 * Returns: the 0-based index in the Event table for the events in the
5368 * type. The last event that belongs to the type (plus 1) is stored
5369 * in the @end_idx pointer.
5372 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5376 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5384 loc.col_idx = MONO_EVENT_MAP_PARENT;
5385 loc.idx = index + 1;
5387 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5390 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5391 if (loc.result + 1 < tdef->rows) {
5392 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5394 end = meta->tables [MONO_TABLE_EVENT].rows;
5402 * mono_metadata_methods_from_event:
5403 * @meta: metadata context
5404 * @index: 0-based index (in the Event table) describing a event
5406 * Returns: the 0-based index in the MethodDef table for the methods in the
5407 * event. The last method that belongs to the event (plus 1) is stored
5408 * in the @end_idx pointer.
5411 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5415 guint32 cols [MONO_METHOD_SEMA_SIZE];
5416 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5422 if (meta->uncompressed_metadata)
5423 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5426 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5427 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5429 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5434 * We may end up in the middle of the rows...
5437 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5443 while (end < msemt->rows) {
5444 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5445 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5454 * mono_metadata_properties_from_typedef:
5455 * @meta: metadata context
5456 * @index: 0-based index (in the TypeDef table) describing a type
5458 * Returns: the 0-based index in the Property table for the properties in the
5459 * type. The last property that belongs to the type (plus 1) is stored
5460 * in the @end_idx pointer.
5463 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5467 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5475 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5476 loc.idx = index + 1;
5478 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5481 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5482 if (loc.result + 1 < tdef->rows) {
5483 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5485 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5493 * mono_metadata_methods_from_property:
5494 * @meta: metadata context
5495 * @index: 0-based index (in the PropertyDef table) describing a property
5497 * Returns: the 0-based index in the MethodDef table for the methods in the
5498 * property. The last method that belongs to the property (plus 1) is stored
5499 * in the @end_idx pointer.
5502 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5506 guint32 cols [MONO_METHOD_SEMA_SIZE];
5507 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5513 if (meta->uncompressed_metadata)
5514 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5517 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5518 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5520 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5525 * We may end up in the middle of the rows...
5528 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5534 while (end < msemt->rows) {
5535 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5536 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5545 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5548 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5553 /* No index translation seems to be needed */
5556 loc.col_idx = MONO_IMPLMAP_MEMBER;
5557 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5559 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5562 return loc.result + 1;
5566 * @image: context where the image is created
5567 * @type_spec: typespec token
5568 * @deprecated use mono_type_create_from_typespec_checked that has proper error handling
5570 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5574 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5577 MonoType *type = mono_type_create_from_typespec_checked (image, type_spec, &error);
5579 g_error ("Could not create typespec %x due to %s", type_spec, mono_error_get_message (&error));
5584 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error)
5587 guint32 idx = mono_metadata_token_index (type_spec);
5589 guint32 cols [MONO_TYPESPEC_SIZE];
5591 MonoType *type, *type2;
5593 mono_error_init (error);
5595 mono_image_lock (image);
5596 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5597 mono_image_unlock (image);
5601 t = &image->tables [MONO_TABLE_TYPESPEC];
5603 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5604 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5606 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5607 mono_error_set_bad_image (error, image, "Could not verify type spec %08x.", type_spec);
5611 mono_metadata_decode_value (ptr, &ptr);
5613 type = mono_metadata_parse_type_checked (image, NULL, 0, TRUE, ptr, &ptr, error);
5617 type2 = mono_metadata_type_dup (image, type);
5618 mono_metadata_free_type (type);
5620 mono_image_lock (image);
5621 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5622 /* We might leak some data in the image mempool if found */
5624 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5627 mono_image_unlock (image);
5634 mono_image_strndup (MonoImage *image, const char *data, guint len)
5638 return g_strndup (data, len);
5639 res = mono_image_alloc (image, len + 1);
5640 memcpy (res, data, len);
5646 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5648 return mono_metadata_parse_marshal_spec_full (NULL, image, ptr);
5652 * If IMAGE is non-null, memory will be allocated from its mempool, otherwise it will be allocated using malloc.
5653 * PARENT_IMAGE is the image containing the marshal spec.
5656 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr)
5658 MonoMarshalSpec *res;
5660 const char *start = ptr;
5662 /* fixme: this is incomplete, but I cant find more infos in the specs */
5665 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5667 res = g_new0 (MonoMarshalSpec, 1);
5669 len = mono_metadata_decode_value (ptr, &ptr);
5670 res->native = *ptr++;
5672 if (res->native == MONO_NATIVE_LPARRAY) {
5673 res->data.array_data.param_num = -1;
5674 res->data.array_data.num_elem = -1;
5675 res->data.array_data.elem_mult = -1;
5677 if (ptr - start <= len)
5678 res->data.array_data.elem_type = *ptr++;
5679 if (ptr - start <= len)
5680 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5681 if (ptr - start <= len)
5682 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5683 if (ptr - start <= len) {
5685 * LAMESPEC: Older spec versions say this parameter comes before
5686 * num_elem. Never spec versions don't talk about elem_mult at
5687 * all, but csc still emits it, and it is used to distinguish
5688 * between param_num being 0, and param_num being omitted.
5689 * So if (param_num == 0) && (num_elem > 0), then
5690 * elem_mult == 0 -> the array size is num_elem
5691 * elem_mult == 1 -> the array size is @param_num + num_elem
5693 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5697 if (res->native == MONO_NATIVE_BYVALTSTR) {
5698 if (ptr - start <= len)
5699 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5702 if (res->native == MONO_NATIVE_BYVALARRAY) {
5703 if (ptr - start <= len)
5704 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5707 if (res->native == MONO_NATIVE_CUSTOM) {
5708 /* skip unused type guid */
5709 len = mono_metadata_decode_value (ptr, &ptr);
5711 /* skip unused native type name */
5712 len = mono_metadata_decode_value (ptr, &ptr);
5714 /* read custom marshaler type name */
5715 len = mono_metadata_decode_value (ptr, &ptr);
5716 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5718 /* read cookie string */
5719 len = mono_metadata_decode_value (ptr, &ptr);
5720 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5721 res->data.custom_data.image = parent_image;
5724 if (res->native == MONO_NATIVE_SAFEARRAY) {
5725 res->data.safearray_data.elem_type = 0;
5726 res->data.safearray_data.num_elem = 0;
5727 if (ptr - start <= len)
5728 res->data.safearray_data.elem_type = *ptr++;
5729 if (ptr - start <= len)
5730 res->data.safearray_data.num_elem = *ptr++;
5736 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5738 if (spec->native == MONO_NATIVE_CUSTOM) {
5739 g_free (spec->data.custom_data.custom_name);
5740 g_free (spec->data.custom_data.cookie);
5746 * mono_type_to_unmanaged:
5748 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5749 * describing the underlying native reprensetation of the type.
5751 * In addition the value pointed by
5752 * "conv" will contain the kind of marshalling required for this
5753 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5756 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5757 gboolean unicode, MonoMarshalConv *conv)
5759 MonoMarshalConv dummy_conv;
5765 *conv = MONO_MARSHAL_CONV_NONE;
5768 return MONO_NATIVE_UINT;
5772 case MONO_TYPE_BOOLEAN:
5774 switch (mspec->native) {
5775 case MONO_NATIVE_VARIANTBOOL:
5776 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5777 return MONO_NATIVE_VARIANTBOOL;
5778 case MONO_NATIVE_BOOLEAN:
5779 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5780 return MONO_NATIVE_BOOLEAN;
5781 case MONO_NATIVE_I1:
5782 case MONO_NATIVE_U1:
5783 return mspec->native;
5785 g_error ("cant marshal bool to native type %02x", mspec->native);
5788 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5789 return MONO_NATIVE_BOOLEAN;
5790 case MONO_TYPE_CHAR:
5792 switch (mspec->native) {
5793 case MONO_NATIVE_U2:
5794 case MONO_NATIVE_U1:
5795 return mspec->native;
5797 g_error ("cant marshal char to native type %02x", mspec->native);
5800 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5801 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5802 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5803 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5804 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5805 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5806 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5807 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5808 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5809 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5810 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5811 case MONO_TYPE_STRING:
5813 switch (mspec->native) {
5814 case MONO_NATIVE_BSTR:
5815 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5816 return MONO_NATIVE_BSTR;
5817 case MONO_NATIVE_LPSTR:
5818 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5819 return MONO_NATIVE_LPSTR;
5820 case MONO_NATIVE_LPWSTR:
5821 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5822 return MONO_NATIVE_LPWSTR;
5823 case MONO_NATIVE_LPTSTR:
5824 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5825 return MONO_NATIVE_LPTSTR;
5826 case MONO_NATIVE_ANSIBSTR:
5827 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5828 return MONO_NATIVE_ANSIBSTR;
5829 case MONO_NATIVE_TBSTR:
5830 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5831 return MONO_NATIVE_TBSTR;
5832 case MONO_NATIVE_BYVALTSTR:
5834 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5836 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5837 return MONO_NATIVE_BYVALTSTR;
5839 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);
5843 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5844 return MONO_NATIVE_LPWSTR;
5847 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5848 return MONO_NATIVE_LPSTR;
5850 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5851 case MONO_TYPE_VALUETYPE: /*FIXME*/
5852 if (type->data.klass->enumtype) {
5853 t = mono_class_enum_basetype (type->data.klass)->type;
5856 if (type->data.klass == mono_defaults.handleref_class){
5857 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5858 return MONO_NATIVE_INT;
5860 return MONO_NATIVE_STRUCT;
5861 case MONO_TYPE_SZARRAY:
5862 case MONO_TYPE_ARRAY:
5864 switch (mspec->native) {
5865 case MONO_NATIVE_BYVALARRAY:
5866 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5867 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5869 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5870 return MONO_NATIVE_BYVALARRAY;
5871 case MONO_NATIVE_SAFEARRAY:
5872 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5873 return MONO_NATIVE_SAFEARRAY;
5874 case MONO_NATIVE_LPARRAY:
5875 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5876 return MONO_NATIVE_LPARRAY;
5878 g_error ("cant marshal array as native type %02x", mspec->native);
5882 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5883 return MONO_NATIVE_LPARRAY;
5884 case MONO_TYPE_I: return MONO_NATIVE_INT;
5885 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5886 case MONO_TYPE_CLASS:
5887 case MONO_TYPE_OBJECT: {
5888 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5890 switch (mspec->native) {
5891 case MONO_NATIVE_STRUCT:
5892 return MONO_NATIVE_STRUCT;
5893 case MONO_NATIVE_CUSTOM:
5894 return MONO_NATIVE_CUSTOM;
5895 case MONO_NATIVE_INTERFACE:
5896 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5897 return MONO_NATIVE_INTERFACE;
5898 case MONO_NATIVE_IDISPATCH:
5899 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5900 return MONO_NATIVE_IDISPATCH;
5901 case MONO_NATIVE_IUNKNOWN:
5902 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5903 return MONO_NATIVE_IUNKNOWN;
5904 case MONO_NATIVE_FUNC:
5905 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5906 type->data.klass == mono_defaults.delegate_class ||
5907 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5908 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5909 return MONO_NATIVE_FUNC;
5913 g_error ("cant marshal object as native type %02x", mspec->native);
5916 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5917 type->data.klass == mono_defaults.delegate_class ||
5918 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5919 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5920 return MONO_NATIVE_FUNC;
5922 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5923 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5924 return MONO_NATIVE_INT;
5926 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5927 return MONO_NATIVE_STRUCT;
5929 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5930 case MONO_TYPE_GENERICINST:
5931 type = &type->data.generic_class->container_class->byval_arg;
5934 case MONO_TYPE_TYPEDBYREF:
5936 g_error ("type 0x%02x not handled in marshal", t);
5938 return MONO_NATIVE_MAX;
5942 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5945 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5951 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5952 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5954 /* FIXME: Index translation */
5956 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5959 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5963 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error)
5965 MonoMethod *result = NULL;
5966 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5968 mono_error_init (error);
5970 switch (tok & MONO_METHODDEFORREF_MASK) {
5971 case MONO_METHODDEFORREF_METHODDEF:
5972 result = mono_get_method_checked (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context, error);
5974 case MONO_METHODDEFORREF_METHODREF:
5975 result = mono_get_method_checked (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context, error);
5978 mono_error_set_bad_image (error, m, "Invalid MethodDefOfRef token %x", tok);
5985 * mono_class_get_overrides_full:
5987 * Return the method overrides belonging to class @type_token in @overrides, and
5988 * the number of overrides in @num_overrides.
5990 * Returns: TRUE on success, FALSE on failure.
5993 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5994 MonoGenericContext *generic_context)
5998 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
6001 guint32 cols [MONO_METHODIMPL_SIZE];
6002 MonoMethod **result;
6013 loc.col_idx = MONO_METHODIMPL_CLASS;
6014 loc.idx = mono_metadata_token_index (type_token);
6016 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6022 * We may end up in the middle of the rows...
6025 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
6030 while (end < tdef->rows) {
6031 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
6037 result = g_new (MonoMethod*, num * 2);
6038 for (i = 0; i < num; ++i) {
6041 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
6042 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6047 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
6048 method = method_from_method_def_or_ref (
6049 image, cols [MONO_METHODIMPL_DECLARATION], generic_context, &error);
6050 if (method == NULL) {
6051 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6054 result [i * 2] = method;
6055 method = method_from_method_def_or_ref (
6056 image, cols [MONO_METHODIMPL_BODY], generic_context, &error);
6057 if (method == NULL) {
6058 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6061 result [i * 2 + 1] = method;
6064 *overrides = result;
6066 *num_overrides = num;
6071 * mono_guid_to_string:
6073 * Converts a 16 byte Microsoft GUID to the standard string representation.
6076 mono_guid_to_string (const guint8 *guid)
6078 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
6079 guid[3], guid[2], guid[1], guid[0],
6083 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6087 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container, MonoError *error)
6089 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
6090 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
6091 guint32 i, token, found;
6092 MonoClass *klass, **res;
6093 GSList *cons = NULL, *tmp;
6094 MonoGenericContext *context = &container->context;
6096 mono_error_init (error);
6098 *constraints = NULL;
6100 for (i = 0; i < tdef->rows; ++i) {
6101 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
6102 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
6103 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
6104 klass = mono_class_get_and_inflate_typespec_checked (image, token, context, error);
6106 g_slist_free (cons);
6109 cons = g_slist_append (cons, klass);
6112 /* contiguous list finished */
6119 res = mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
6120 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
6121 res [i] = tmp->data;
6123 g_slist_free (cons);
6129 * mono_metadata_get_generic_param_row:
6132 * @token: TypeOrMethodDef token, owner for GenericParam
6133 * @owner: coded token, set on return
6135 * Returns: 1-based row-id in the GenericParam table whose
6136 * owner is @token. 0 if not found.
6139 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
6141 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6148 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
6149 *owner = MONO_TYPEORMETHOD_TYPE;
6150 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6151 *owner = MONO_TYPEORMETHOD_METHOD;
6153 g_error ("wrong token %x to get_generic_param_row", token);
6156 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
6159 loc.col_idx = MONO_GENERICPARAM_OWNER;
6162 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6165 /* Find the first entry by searching backwards */
6166 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
6169 return loc.result + 1;
6173 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
6176 return mono_metadata_get_generic_param_row (image, token, &owner);
6180 * Memory is allocated from IMAGE's mempool.
6183 mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
6184 MonoGenericContainer *container, MonoError *error)
6187 guint32 start_row, i, owner;
6188 mono_error_init (error);
6190 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
6192 for (i = 0; i < container->type_argc; i++) {
6193 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container, error)) {
6194 mono_loader_assert_no_error ();
6202 * mono_metadata_load_generic_params:
6204 * Load the type parameters from the type or method definition @token.
6206 * Use this method after parsing a type or method definition to figure out whether it's a generic
6207 * type / method. When parsing a method definition, @parent_container points to the generic container
6208 * of the current class, if any.
6210 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
6211 * creating the type.
6213 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
6215 * LOCKING: Acquires the loader lock
6218 MonoGenericContainer *
6219 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
6221 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6222 guint32 cols [MONO_GENERICPARAM_SIZE];
6223 guint32 i, owner = 0, n;
6224 MonoGenericContainer *container;
6225 MonoGenericParamFull *params;
6226 MonoGenericContext *context;
6228 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
6230 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6233 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
6234 container->image = image;
6237 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
6238 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
6239 params [n - 1].param.owner = container;
6240 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
6241 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
6242 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
6243 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
6244 if (params [n - 1].param.num != n - 1)
6245 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
6246 if (++i > tdef->rows)
6248 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6249 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
6251 container->type_argc = n;
6252 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
6253 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
6255 container->parent = parent_container;
6257 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6258 container->is_method = 1;
6260 g_assert (container->parent == NULL || container->is_method);
6262 context = &container->context;
6263 if (container->is_method) {
6264 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
6265 context->method_inst = mono_get_shared_generic_inst (container);
6267 context->class_inst = mono_get_shared_generic_inst (container);
6274 mono_get_shared_generic_inst (MonoGenericContainer *container)
6276 MonoType **type_argv;
6278 MonoGenericInst *nginst;
6281 type_argv = g_new0 (MonoType *, container->type_argc);
6282 helper = g_new0 (MonoType, container->type_argc);
6284 for (i = 0; i < container->type_argc; i++) {
6285 MonoType *t = &helper [i];
6287 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
6288 t->data.generic_param = mono_generic_container_get_param (container, i);
6293 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
6302 * mono_type_is_byref:
6303 * @type: the MonoType operated on
6305 * Returns: #TRUE if @type represents a type passed by reference,
6309 mono_type_is_byref (MonoType *type)
6315 * mono_type_get_type:
6316 * @type: the MonoType operated on
6318 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
6319 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
6322 mono_type_get_type (MonoType *type)
6328 * mono_type_get_signature:
6329 * @type: the MonoType operated on
6331 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
6333 * Returns: the MonoMethodSignature pointer that describes the signature
6334 * of the function pointer @type represents.
6336 MonoMethodSignature*
6337 mono_type_get_signature (MonoType *type)
6339 g_assert (type->type == MONO_TYPE_FNPTR);
6340 return type->data.method;
6344 * mono_type_get_class:
6345 * @type: the MonoType operated on
6347 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
6348 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
6351 * Returns: the MonoClass pointer that describes the class that @type represents.
6354 mono_type_get_class (MonoType *type)
6356 /* FIXME: review the runtime users before adding the assert here */
6357 return type->data.klass;
6361 * mono_type_get_array_type:
6362 * @type: the MonoType operated on
6364 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6366 * Returns: a MonoArrayType struct describing the array type that @type
6367 * represents. The info includes details such as rank, array element type
6368 * and the sizes and bounds of multidimensional arrays.
6371 mono_type_get_array_type (MonoType *type)
6373 return type->data.array;
6377 * mono_type_get_ptr_type:
6378 * @type: the MonoType operated on
6380 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6383 * Returns: the MonoType pointer that describes the type that @type
6384 * represents a pointer to.
6387 mono_type_get_ptr_type (MonoType *type)
6389 g_assert (type->type == MONO_TYPE_PTR);
6390 return type->data.type;
6394 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6396 /* FIXME: implement */
6401 * mono_type_is_struct:
6402 * @type: the MonoType operated on
6404 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6405 * or a basic type like System.Int32. #FALSE otherwise.
6408 mono_type_is_struct (MonoType *type)
6410 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6411 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6412 ((type->type == MONO_TYPE_GENERICINST) &&
6413 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6414 !type->data.generic_class->container_class->enumtype)));
6418 * mono_type_is_void:
6419 * @type: the MonoType operated on
6421 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6424 mono_type_is_void (MonoType *type)
6426 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6430 * mono_type_is_pointer:
6431 * @type: the MonoType operated on
6433 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6436 mono_type_is_pointer (MonoType *type)
6438 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6439 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6440 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6441 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6442 (type->type == MONO_TYPE_FNPTR)));
6446 * mono_type_is_reference:
6447 * @type: the MonoType operated on
6449 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6452 mono_type_is_reference (MonoType *type)
6454 return (type && (((type->type == MONO_TYPE_STRING) ||
6455 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6456 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6457 ((type->type == MONO_TYPE_GENERICINST) &&
6458 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6462 * mono_signature_get_return_type:
6463 * @sig: the method signature inspected
6465 * Returns: the return type of the method signature @sig
6468 mono_signature_get_return_type (MonoMethodSignature *sig)
6474 * mono_signature_get_params:
6475 * @sig: the method signature inspected
6476 * #iter: pointer to an iterator
6478 * Iterates over the parameters for the method signature @sig.
6479 * A void* pointer must be initualized to #NULL to start the iteration
6480 * and it's address is passed to this function repeteadly until it returns
6483 * Returns: the next parameter type of the method signature @sig,
6484 * #NULL when finished.
6487 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6493 /* start from the first */
6494 if (sig->param_count) {
6495 *iter = &sig->params [0];
6496 return sig->params [0];
6504 if (type < &sig->params [sig->param_count]) {
6512 * mono_signature_get_param_count:
6513 * @sig: the method signature inspected
6515 * Returns: the number of parameters in the method signature @sig.
6518 mono_signature_get_param_count (MonoMethodSignature *sig)
6520 return sig->param_count;
6524 * mono_signature_get_call_conv:
6525 * @sig: the method signature inspected
6527 * Returns: the call convention of the method signature @sig.
6530 mono_signature_get_call_conv (MonoMethodSignature *sig)
6532 return sig->call_convention;
6536 * mono_signature_vararg_start:
6537 * @sig: the method signature inspected
6539 * Returns: the number of the first vararg parameter in the
6540 * method signature @sig. -1 if this is not a vararg signature.
6543 mono_signature_vararg_start (MonoMethodSignature *sig)
6545 return sig->sentinelpos;
6549 * mono_signature_is_instance:
6550 * @sig: the method signature inspected
6552 * Returns: #TRUE if this the method signature @sig has an implicit
6553 * first instance argument. #FALSE otherwise.
6556 mono_signature_is_instance (MonoMethodSignature *sig)
6558 return sig->hasthis;
6562 * mono_signature_param_is_out
6563 * @sig: the method signature inspected
6564 * @param_num: the 0-based index of the inspected parameter
6566 * Returns: #TRUE if the parameter is an out parameter, #FALSE
6570 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6572 g_assert (param_num >= 0 && param_num < sig->param_count);
6573 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6577 * mono_signature_explicit_this:
6578 * @sig: the method signature inspected
6580 * Returns: #TRUE if this the method signature @sig has an explicit
6581 * instance argument. #FALSE otherwise.
6584 mono_signature_explicit_this (MonoMethodSignature *sig)
6586 return sig->explicit_this;
6589 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6591 mono_aligned_addr_hash (gconstpointer ptr)
6593 return GPOINTER_TO_UINT (ptr) >> 3;
6597 * If @field belongs to an inflated generic class, return the corresponding field of the
6598 * generic type definition class.
6601 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6606 if (!field->parent->generic_class)
6609 gtd = field->parent->generic_class->container_class;
6610 offset = field - field->parent->fields;
6611 return gtd->fields + offset;
6615 * If @event belongs to an inflated generic class, return the corresponding event of the
6616 * generic type definition class.
6619 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6624 if (!event->parent->generic_class)
6627 gtd = event->parent->generic_class->container_class;
6628 offset = event - event->parent->ext->events;
6629 return gtd->ext->events + offset;
6633 * If @property belongs to an inflated generic class, return the corresponding property of the
6634 * generic type definition class.
6637 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6642 if (!property->parent->generic_class)
6645 gtd = property->parent->generic_class->container_class;
6646 offset = property - property->parent->ext->properties;
6647 return gtd->ext->properties + offset;
6651 mono_method_get_wrapper_cache (MonoMethod *method)
6653 if (method->is_inflated) {
6654 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
6655 return &imethod->owner->wrapper_caches;
6657 return &method->klass->image->wrapper_caches;