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)
1328 MonoArrayType *array;
1331 array = transient ? g_malloc0 (sizeof (MonoArrayType)) : mono_image_alloc0 (m, sizeof (MonoArrayType));
1332 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1335 array->eklass = mono_class_from_mono_type (etype);
1336 array->rank = mono_metadata_decode_value (ptr, &ptr);
1338 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1339 if (array->numsizes)
1340 array->sizes = transient ? g_malloc0 (sizeof (int) * array->numsizes) : mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1341 for (i = 0; i < array->numsizes; ++i)
1342 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1344 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1345 if (array->numlobounds)
1346 array->lobounds = transient ? g_malloc0 (sizeof (int) * array->numlobounds) : mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1347 for (i = 0; i < array->numlobounds; ++i)
1348 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1356 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1357 const char *ptr, const char **rptr)
1359 return mono_metadata_parse_array_internal (m, container, FALSE, ptr, rptr);
1363 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1365 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1369 * mono_metadata_free_array:
1370 * @array: array description
1372 * Frees the array description returned from mono_metadata_parse_array().
1375 mono_metadata_free_array (MonoArrayType *array)
1377 g_free (array->sizes);
1378 g_free (array->lobounds);
1383 * need to add common field and param attributes combinations:
1386 * public static literal
1389 * private static literal
1391 static const MonoType
1393 /* data, attrs, type, nmods, byref, pinned */
1394 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1395 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1396 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1397 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1398 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1399 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1400 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1401 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1402 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1403 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1404 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1405 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1406 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1407 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1408 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1409 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1410 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1411 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1412 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1413 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1414 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1415 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1416 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1417 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1418 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1419 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1420 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1421 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1422 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1423 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1424 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1425 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1426 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1427 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1430 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1432 static GHashTable *type_cache = NULL;
1433 static int next_generic_inst_id = 0;
1435 /* Protected by image_sets_mutex */
1436 static MonoImageSet *mscorlib_image_set;
1437 /* Protected by image_sets_mutex */
1438 static GPtrArray *image_sets;
1439 static mono_mutex_t image_sets_mutex;
1441 static guint mono_generic_class_hash (gconstpointer data);
1444 * MonoTypes with modifies are never cached, so we never check or use that field.
1447 mono_type_hash (gconstpointer data)
1449 const MonoType *type = (const MonoType *) data;
1450 if (type->type == MONO_TYPE_GENERICINST)
1451 return mono_generic_class_hash (type->data.generic_class);
1453 return type->type | (type->byref << 8) | (type->attrs << 9);
1457 mono_type_equal (gconstpointer ka, gconstpointer kb)
1459 const MonoType *a = (const MonoType *) ka;
1460 const MonoType *b = (const MonoType *) kb;
1462 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1464 /* need other checks */
1469 mono_metadata_generic_inst_hash (gconstpointer data)
1471 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1475 for (i = 0; i < ginst->type_argc; ++i) {
1477 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1480 return hash ^ (ginst->is_open << 8);
1484 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1488 #ifndef MONO_SMALL_CONFIG
1489 if (a->id && b->id) {
1492 if (!signature_only)
1497 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1499 for (i = 0; i < a->type_argc; ++i) {
1500 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1507 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1509 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1510 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1512 return mono_generic_inst_equal_full (a, b, FALSE);
1516 mono_generic_class_hash (gconstpointer data)
1518 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1519 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1522 hash += gclass->is_tb_open;
1523 hash += mono_metadata_generic_context_hash (&gclass->context);
1529 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1531 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1532 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1534 return _mono_metadata_generic_class_equal (a, b, FALSE);
1538 * mono_metadata_init:
1540 * Initialize the global variables of this module.
1541 * This is a Mono runtime internal function.
1544 mono_metadata_init (void)
1548 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1550 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1551 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1553 mono_mutex_init_recursive (&image_sets_mutex);
1557 * mono_metadata_cleanup:
1559 * Free all resources used by this module.
1560 * This is a Mono runtime internal function.
1563 mono_metadata_cleanup (void)
1565 g_hash_table_destroy (type_cache);
1567 g_ptr_array_free (image_sets, TRUE);
1569 mono_mutex_destroy (&image_sets_mutex);
1573 * mono_metadata_parse_type:
1574 * @m: metadata context
1575 * @mode: king of type that may be found at @ptr
1576 * @opt_attrs: optional attributes to store in the returned type
1577 * @ptr: pointer to the type representation
1578 * @rptr: pointer updated to match the end of the decoded stream
1579 * @transient: whenever to allocate the result from the heap or from a mempool
1581 * Decode a compressed type description found at @ptr in @m.
1582 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1583 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1584 * This function can be used to decode type descriptions in method signatures,
1585 * field signatures, locals signatures etc.
1587 * To parse a generic type, `generic_container' points to the current class'es
1588 * (the `generic_container' field in the MonoClass) or the current generic method's
1589 * (stored in image->property_hash) generic container.
1590 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1591 * this MonoGenericContainer.
1593 * LOCKING: Acquires the loader lock.
1595 * Returns: a #MonoType structure representing the decoded type.
1598 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1599 short opt_attrs, gboolean transient, const char *ptr, const char **rptr)
1601 MonoType *type, *cached;
1603 gboolean byref = FALSE;
1604 gboolean pinned = FALSE;
1605 const char *tmp_ptr;
1610 * According to the spec, custom modifiers should come before the byref
1611 * flag, but the IL produced by ilasm from the following signature:
1612 * object modopt(...) &
1613 * starts with a byref flag, followed by the modifiers. (bug #49802)
1614 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1615 * it would be better to treat byref as real type constructor instead of
1617 * Also, pinned should come before anything else, but some MSV++ produced
1618 * assemblies violate this (#bug 61990).
1621 /* Count the modifiers first */
1626 case MONO_TYPE_PINNED:
1627 case MONO_TYPE_BYREF:
1630 case MONO_TYPE_CMOD_REQD:
1631 case MONO_TYPE_CMOD_OPT:
1633 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1643 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1644 type = transient ? g_malloc0 (size) : mono_image_alloc0 (m, size);
1645 type->num_mods = count;
1647 g_warning ("got more than 64 modifiers in type");
1650 memset (type, 0, MONO_SIZEOF_TYPE);
1653 /* Parse pinned, byref and custom modifiers */
1658 case MONO_TYPE_PINNED:
1662 case MONO_TYPE_BYREF:
1666 case MONO_TYPE_CMOD_REQD:
1667 case MONO_TYPE_CMOD_OPT:
1668 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1676 type->attrs = opt_attrs;
1677 type->byref = byref;
1678 type->pinned = pinned ? 1 : 0;
1680 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr)) {
1687 if (!type->num_mods && !transient) {
1688 /* no need to free type here, because it is on the stack */
1689 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1690 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1692 /* Consider the case:
1694 class Foo<T> { class Bar {} }
1695 class Test : Foo<Test>.Bar {}
1697 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1698 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1700 We ensure that the MonoClass is in a state that we can canonicalize to:
1702 klass->byval_arg.data.klass == klass
1703 klass->this_arg.data.klass == klass
1705 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1707 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1708 of a MonoClass which currently holds the loader lock. 'type' is local.
1710 if (ret->data.klass == type->data.klass) {
1714 /* No need to use locking since nobody is modifying the hash table */
1715 if ((cached = g_hash_table_lookup (type_cache, type))) {
1720 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1722 if (type == &stype) {
1723 type = transient ? g_malloc (MONO_SIZEOF_TYPE) : mono_image_alloc (m, MONO_SIZEOF_TYPE);
1724 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1730 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1731 short opt_attrs, const char *ptr, const char **rptr)
1733 return mono_metadata_parse_type_internal (m, container, mode, opt_attrs, FALSE, ptr, rptr);
1737 * LOCKING: Acquires the loader lock.
1740 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1741 const char *ptr, const char **rptr)
1743 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1747 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1749 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1750 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1751 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1753 if (def < methodt->rows)
1754 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1756 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1758 for (i = param_index; i < lastp; ++i) {
1759 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1768 * mono_metadata_get_param_attrs:
1770 * @m The image to loader parameter attributes from
1771 * @def method def token (one based)
1772 * @param_count number of params to decode including the return value
1774 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1775 * returned memory needs to be freed by the caller. If all the param attributes are
1776 * 0, then NULL is returned.
1779 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1781 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1782 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1783 guint32 cols [MONO_PARAM_SIZE];
1784 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1787 if (def < methodt->rows)
1788 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1790 lastp = paramt->rows + 1;
1792 for (i = param_index; i < lastp; ++i) {
1793 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1794 if (cols [MONO_PARAM_FLAGS]) {
1796 pattrs = g_new0 (int, param_count);
1797 /* at runtime we just ignore this kind of malformed file:
1798 * the verifier can signal the error to the user
1800 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1802 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1811 * mono_metadata_parse_signature:
1812 * @image: metadata context
1813 * @toke: metadata token
1815 * Decode a method signature stored in the STANDALONESIG table
1817 * Returns: a MonoMethodSignature describing the signature.
1819 MonoMethodSignature*
1820 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1823 MonoMethodSignature *ret;
1824 MonoTableInfo *tables = image->tables;
1825 guint32 idx = mono_metadata_token_index (token);
1829 if (image_is_dynamic (image))
1830 return mono_lookup_dynamic_token (image, token, NULL);
1832 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1834 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1836 ptr = mono_metadata_blob_heap (image, sig);
1837 mono_metadata_decode_blob_size (ptr, &ptr);
1839 ret = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, &error);
1840 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1845 * mono_metadata_signature_alloc:
1846 * @image: metadata context
1847 * @nparmas: number of parameters in the signature
1849 * Allocate a MonoMethodSignature structure with the specified number of params.
1850 * The return type and the params types need to be filled later.
1851 * This is a Mono runtime internal function.
1853 * LOCKING: Assumes the loader lock is held.
1855 * Returns: the new MonoMethodSignature structure.
1857 MonoMethodSignature*
1858 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1860 MonoMethodSignature *sig;
1862 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1863 sig->param_count = nparams;
1864 sig->sentinelpos = -1;
1869 static MonoMethodSignature*
1870 mono_metadata_signature_dup_internal_with_padding (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig, size_t padding)
1872 int sigsize, sig_header_size;
1873 MonoMethodSignature *ret;
1874 sigsize = sig_header_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *) + padding;
1876 sigsize += MONO_SIZEOF_TYPE;
1879 ret = mono_image_alloc (image, sigsize);
1881 ret = mono_mempool_alloc (mp, sigsize);
1883 ret = g_malloc (sigsize);
1886 memcpy (ret, sig, sig_header_size - padding);
1888 // Copy return value because of ownership semantics.
1890 // Danger! Do not alter padding use without changing the dup_add_this below
1891 intptr_t end_of_header = (intptr_t)( (char*)(ret) + sig_header_size);
1892 ret->ret = (MonoType *)end_of_header;
1893 memcpy (ret->ret, sig->ret, MONO_SIZEOF_TYPE);
1899 static MonoMethodSignature*
1900 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1902 return mono_metadata_signature_dup_internal_with_padding (image, mp, sig, 0);
1905 * signature_dup_add_this:
1907 * Make a copy of @sig, adding an explicit this argument.
1909 MonoMethodSignature*
1910 mono_metadata_signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
1912 MonoMethodSignature *ret;
1913 ret = mono_metadata_signature_dup_internal_with_padding (image, NULL, sig, sizeof (MonoType *));
1915 ret->param_count = sig->param_count + 1;
1916 ret->hasthis = FALSE;
1918 for (int i = sig->param_count - 1; i >= 0; i --)
1919 ret->params [i + 1] = sig->params [i];
1920 ret->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
1922 for (int i = sig->param_count - 1; i >= 0; i --)
1923 g_assert(ret->params [i + 1]->type == sig->params [i]->type && ret->params [i+1]->type != MONO_TYPE_END);
1924 g_assert (ret->ret->type == sig->ret->type && ret->ret->type != MONO_TYPE_END);
1931 MonoMethodSignature*
1932 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1934 MonoMethodSignature *ret = mono_metadata_signature_dup_internal (image, NULL, sig);
1936 for (int i = 0 ; i < sig->param_count; i ++)
1937 g_assert(ret->params [i]->type == sig->params [i]->type);
1938 g_assert (ret->ret->type == sig->ret->type);
1943 /*The mempool is accessed without synchronization*/
1944 MonoMethodSignature*
1945 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1947 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1951 * mono_metadata_signature_dup:
1952 * @sig: method signature
1954 * Duplicate an existing MonoMethodSignature so it can be modified.
1955 * This is a Mono runtime internal function.
1957 * Returns: the new MonoMethodSignature structure.
1959 MonoMethodSignature*
1960 mono_metadata_signature_dup (MonoMethodSignature *sig)
1962 return mono_metadata_signature_dup_full (NULL, sig);
1966 * mono_metadata_signature_size:
1968 * Return the amount of memory allocated to SIG.
1971 mono_metadata_signature_size (MonoMethodSignature *sig)
1973 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
1977 * mono_metadata_parse_method_signature:
1978 * @m: metadata context
1979 * @generic_container: generics container
1980 * @def: the MethodDef index or 0 for Ref signatures.
1981 * @ptr: pointer to the signature metadata representation
1982 * @rptr: pointer updated to match the end of the decoded stream
1984 * Decode a method signature stored at @ptr.
1985 * This is a Mono runtime internal function.
1987 * LOCKING: Assumes the loader lock is held.
1989 * Returns: a MonoMethodSignature describing the signature.
1991 MonoMethodSignature *
1992 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1993 int def, const char *ptr, const char **rptr, MonoError *error)
1995 MonoMethodSignature *method;
1996 int i, *pattrs = NULL;
1997 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1998 guint32 gen_param_count = 0;
1999 gboolean is_open = FALSE;
2001 mono_error_init (error);
2004 gen_param_count = 1;
2009 call_convention = *ptr & 0x0F;
2011 if (gen_param_count)
2012 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
2013 param_count = mono_metadata_decode_value (ptr, &ptr);
2016 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 */
2018 method = mono_metadata_signature_alloc (m, param_count);
2019 method->hasthis = hasthis;
2020 method->explicit_this = explicit_this;
2021 method->call_convention = call_convention;
2022 method->generic_param_count = gen_param_count;
2024 if (call_convention != 0xa) {
2025 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
2027 mono_metadata_free_method_signature (method);
2029 if (mono_loader_get_last_error ())
2030 mono_error_set_from_loader_error (error);
2032 mono_error_set_bad_image (error, m, "Could not parse return type signature");
2035 is_open = mono_class_is_open_constructed_type (method->ret);
2038 for (i = 0; i < method->param_count; ++i) {
2039 if (*ptr == MONO_TYPE_SENTINEL) {
2040 if (method->call_convention != MONO_CALL_VARARG || def) {
2041 mono_loader_assert_no_error ();
2042 mono_error_set_bad_image (error, m, "Found sentinel for methoddef or no vararg");
2046 if (method->sentinelpos >= 0) {
2047 mono_loader_assert_no_error ();
2048 mono_error_set_bad_image (error, m, "Found sentinel twice in the same signature.");
2052 method->sentinelpos = i;
2055 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
2056 if (!method->params [i]) {
2057 if (mono_loader_get_last_error ())
2058 mono_error_set_from_loader_error (error);
2060 mono_error_set_bad_image (error, m, "Could not parse type argument %d on method signature", i);
2061 mono_metadata_free_method_signature (method);
2066 is_open = mono_class_is_open_constructed_type (method->params [i]);
2069 /* The sentinel could be missing if the caller does not pass any additional arguments */
2070 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
2071 method->sentinelpos = method->param_count;
2073 method->has_type_parameters = is_open;
2075 if (def && (method->call_convention == MONO_CALL_VARARG))
2076 method->sentinelpos = method->param_count;
2083 * Add signature to a cache and increase ref count...
2086 mono_loader_assert_no_error ();
2091 * mono_metadata_parse_method_signature:
2092 * @m: metadata context
2093 * @def: the MethodDef index or 0 for Ref signatures.
2094 * @ptr: pointer to the signature metadata representation
2095 * @rptr: pointer updated to match the end of the decoded stream
2097 * Decode a method signature stored at @ptr.
2098 * This is a Mono runtime internal function.
2100 * LOCKING: Assumes the loader lock is held.
2102 * Returns: a MonoMethodSignature describing the signature.
2104 MonoMethodSignature *
2105 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
2108 MonoMethodSignature *ret;
2109 ret = mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr, &error);
2111 mono_loader_set_error_from_mono_error (&error);
2112 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
2118 * mono_metadata_free_method_signature:
2119 * @sig: signature to destroy
2121 * Free the memory allocated in the signature @sig.
2122 * This method needs to be robust and work also on partially-built
2123 * signatures, so it does extra checks.
2126 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2128 /* Everything is allocated from mempools */
2132 mono_metadata_free_type (sig->ret);
2133 for (i = 0; i < sig->param_count; ++i) {
2134 if (sig->params [i])
2135 mono_metadata_free_type (sig->params [i]);
2141 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2145 /* Allocated in inflate_generic_signature () */
2147 mono_metadata_free_type (sig->ret);
2148 for (i = 0; i < sig->param_count; ++i) {
2149 if (sig->params [i])
2150 mono_metadata_free_type (sig->params [i]);
2156 inflated_method_equal (gconstpointer a, gconstpointer b)
2158 const MonoMethodInflated *ma = a;
2159 const MonoMethodInflated *mb = b;
2160 if (ma->declaring != mb->declaring)
2162 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2166 inflated_method_hash (gconstpointer a)
2168 const MonoMethodInflated *ma = a;
2169 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring));
2173 inflated_signature_equal (gconstpointer a, gconstpointer b)
2175 const MonoInflatedMethodSignature *sig1 = a;
2176 const MonoInflatedMethodSignature *sig2 = b;
2178 /* sig->sig is assumed to be canonized */
2179 if (sig1->sig != sig2->sig)
2181 /* The generic instances are canonized */
2182 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2186 inflated_signature_hash (gconstpointer a)
2188 const MonoInflatedMethodSignature *sig = a;
2190 /* sig->sig is assumed to be canonized */
2191 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2195 dump_ginst (MonoGenericInst *ginst)
2200 g_print ("Ginst: <");
2201 for (i = 0; i < ginst->type_argc; ++i) {
2204 name = mono_type_get_name (ginst->type_argv [i]);
2205 g_print ("%s", name);
2211 static gboolean type_in_image (MonoType *type, MonoImage *image);
2214 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2216 gpointer iter = NULL;
2219 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2220 if (type_in_image (p, image))
2223 return type_in_image (mono_signature_get_return_type (sig), image);
2227 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2231 for (i = 0; i < ginst->type_argc; ++i) {
2232 if (type_in_image (ginst->type_argv [i], image))
2240 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2242 return gclass->container_class->image == image ||
2243 ginst_in_image (gclass->context.class_inst, image);
2247 type_in_image (MonoType *type, MonoImage *image)
2250 switch (type->type) {
2251 case MONO_TYPE_GENERICINST:
2252 return gclass_in_image (type->data.generic_class, image);
2254 type = type->data.type;
2256 case MONO_TYPE_SZARRAY:
2257 type = &type->data.klass->byval_arg;
2259 case MONO_TYPE_ARRAY:
2260 type = &type->data.array->eklass->byval_arg;
2262 case MONO_TYPE_FNPTR:
2263 return signature_in_image (type->data.method, image);
2264 case MONO_TYPE_VAR: {
2265 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2267 g_assert (!container->is_method);
2269 * FIXME: The following check is here solely
2270 * for monodis, which uses the internal
2272 * mono_metadata_load_generic_params(). The
2273 * caller of that function needs to fill in
2274 * owner->klass or owner->method of the
2275 * returned struct, but monodis doesn't do
2276 * that. The image unloading depends on that,
2277 * however, so a crash results without this
2280 if (!container->owner.klass)
2281 return container->image == image;
2282 return container->owner.klass->image == image;
2284 return type->data.generic_param->image == image;
2287 case MONO_TYPE_MVAR: {
2288 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2289 if (type->data.generic_param->image == image)
2292 g_assert (container->is_method);
2293 if (!container->owner.method)
2294 /* RefEmit created generic param whose method is not finished */
2295 return container->image == image;
2296 return container->owner.method->klass->image == image;
2298 return type->data.generic_param->image == image;
2302 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2303 return image == mono_class_from_mono_type (type)->image;
2308 image_sets_lock (void)
2310 mono_mutex_lock (&image_sets_mutex);
2314 image_sets_unlock (void)
2316 mono_mutex_unlock (&image_sets_mutex);
2322 * Return a MonoImageSet representing the set of images in IMAGES.
2324 static MonoImageSet*
2325 get_image_set (MonoImage **images, int nimages)
2332 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2333 return mscorlib_image_set;
2335 /* Happens with empty generic instances */
2337 return mscorlib_image_set;
2342 image_sets = g_ptr_array_new ();
2344 if (images [0] == mono_defaults.corlib && nimages > 1)
2345 l = images [1]->image_sets;
2347 l = images [0]->image_sets;
2350 for (; l; l = l->next) {
2353 if (set->nimages == nimages) {
2354 for (j = 0; j < nimages; ++j) {
2355 for (k = 0; k < nimages; ++k)
2356 if (set->images [k] == images [j])
2370 set = g_new0 (MonoImageSet, 1);
2371 set->nimages = nimages;
2372 set->images = g_new0 (MonoImage*, nimages);
2373 mono_mutex_init_recursive (&set->lock);
2374 for (i = 0; i < nimages; ++i)
2375 set->images [i] = images [i];
2376 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2377 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2378 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2379 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2381 for (i = 0; i < nimages; ++i)
2382 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2384 g_ptr_array_add (image_sets, set);
2387 if (nimages == 1 && images [0] == mono_defaults.corlib) {
2388 mono_memory_barrier ();
2389 mscorlib_image_set = set;
2392 image_sets_unlock ();
2398 delete_image_set (MonoImageSet *set)
2402 g_hash_table_destroy (set->gclass_cache);
2403 g_hash_table_destroy (set->ginst_cache);
2404 g_hash_table_destroy (set->gmethod_cache);
2405 g_hash_table_destroy (set->gsignature_cache);
2407 mono_wrapper_caches_free (&set->wrapper_caches);
2411 for (i = 0; i < set->nimages; ++i)
2412 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2414 g_ptr_array_remove (image_sets, set);
2416 image_sets_unlock ();
2419 mono_mempool_destroy (set->mempool);
2420 g_free (set->images);
2421 mono_mutex_destroy (&set->lock);
2426 mono_image_set_lock (MonoImageSet *set)
2428 mono_mutex_lock (&set->lock);
2432 mono_image_set_unlock (MonoImageSet *set)
2434 mono_mutex_unlock (&set->lock);
2438 mono_image_set_alloc (MonoImageSet *set, guint size)
2442 mono_image_set_lock (set);
2444 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2445 res = mono_mempool_alloc (set->mempool, size);
2446 mono_image_set_unlock (set);
2452 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2456 mono_image_set_lock (set);
2458 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2459 res = mono_mempool_alloc0 (set->mempool, size);
2460 mono_image_set_unlock (set);
2466 mono_image_set_strdup (MonoImageSet *set, const char *s)
2470 mono_image_set_lock (set);
2472 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2473 res = mono_mempool_strdup (set->mempool, s);
2474 mono_image_set_unlock (set);
2480 * Structure used by the collect_..._images functions to store the image list.
2483 MonoImage *image_buf [64];
2485 int nimages, images_len;
2489 collect_data_init (CollectData *data)
2491 data->images = data->image_buf;
2492 data->images_len = 64;
2497 collect_data_free (CollectData *data)
2499 if (data->images != data->image_buf)
2500 g_free (data->images);
2504 enlarge_data (CollectData *data)
2506 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2507 MonoImage **d = g_new (MonoImage *, new_len);
2510 g_assert_not_reached ();
2511 memcpy (d, data->images, data->images_len);
2512 if (data->images != data->image_buf)
2513 g_free (data->images);
2515 data->images_len = new_len;
2519 add_image (MonoImage *image, CollectData *data)
2523 /* The arrays are small, so use a linear search instead of a hash table */
2524 for (i = 0; i < data->nimages; ++i)
2525 if (data->images [i] == image)
2528 if (data->nimages == data->images_len)
2529 enlarge_data (data);
2531 data->images [data->nimages ++] = image;
2535 collect_type_images (MonoType *type, CollectData *data);
2538 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2542 for (i = 0; i < ginst->type_argc; ++i) {
2543 collect_type_images (ginst->type_argv [i], data);
2548 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2550 add_image (gclass->container_class->image, data);
2551 if (gclass->context.class_inst)
2552 collect_ginst_images (gclass->context.class_inst, data);
2556 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2558 gpointer iter = NULL;
2561 collect_type_images (mono_signature_get_return_type (sig), data);
2562 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2563 collect_type_images (p, data);
2567 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2569 collect_signature_images (sig->sig, data);
2570 if (sig->context.class_inst)
2571 collect_ginst_images (sig->context.class_inst, data);
2572 if (sig->context.method_inst)
2573 collect_ginst_images (sig->context.method_inst, data);
2577 collect_method_images (MonoMethodInflated *method, CollectData *data)
2579 MonoMethod *m = method->declaring;
2581 add_image (method->declaring->klass->image, data);
2582 if (method->context.class_inst)
2583 collect_ginst_images (method->context.class_inst, data);
2584 if (method->context.method_inst)
2585 collect_ginst_images (method->context.method_inst, data);
2587 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2589 if (image_is_dynamic (m->klass->image))
2590 collect_signature_images (mono_method_signature (m), data);
2594 collect_type_images (MonoType *type, CollectData *data)
2597 switch (type->type) {
2598 case MONO_TYPE_GENERICINST:
2599 collect_gclass_images (type->data.generic_class, data);
2602 type = type->data.type;
2604 case MONO_TYPE_SZARRAY:
2605 type = &type->data.klass->byval_arg;
2607 case MONO_TYPE_ARRAY:
2608 type = &type->data.array->eklass->byval_arg;
2610 case MONO_TYPE_FNPTR:
2611 //return signature_in_image (type->data.method, image);
2612 g_assert_not_reached ();
2613 case MONO_TYPE_VAR: {
2614 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2616 g_assert (!container->is_method);
2618 * FIXME: The following check is here solely
2619 * for monodis, which uses the internal
2621 * mono_metadata_load_generic_params(). The
2622 * caller of that function needs to fill in
2623 * owner->klass or owner->method of the
2624 * returned struct, but monodis doesn't do
2625 * that. The image unloading depends on that,
2626 * however, so a crash results without this
2629 if (!container->owner.klass)
2630 add_image (container->image, data);
2632 add_image (container->owner.klass->image, data);
2634 add_image (type->data.generic_param->image, data);
2638 case MONO_TYPE_MVAR: {
2639 MonoGenericContainer *container = mono_type_get_generic_param_owner (type);
2640 if (type->data.generic_param->image)
2641 add_image (type->data.generic_param->image, data);
2643 if (!container->owner.method) {
2644 /* RefEmit created generic param whose method is not finished */
2645 add_image (container->image, data);
2647 g_assert (container->is_method);
2648 add_image (container->owner.method->klass->image, data);
2651 add_image (type->data.generic_param->image, data);
2655 case MONO_TYPE_CLASS:
2656 case MONO_TYPE_VALUETYPE:
2657 add_image (mono_class_from_mono_type (type)->image, data);
2660 add_image (mono_defaults.corlib, data);
2667 } CleanForImageUserData;
2670 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2672 MonoGenericClass *gclass = key;
2673 CleanForImageUserData *user_data = data;
2675 g_assert (gclass_in_image (gclass, user_data->image));
2677 user_data->list = g_slist_prepend (user_data->list, gclass);
2682 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2684 MonoGenericInst *ginst = key;
2685 CleanForImageUserData *user_data = data;
2687 // This doesn't work during corlib compilation
2688 //g_assert (ginst_in_image (ginst, user_data->image));
2690 user_data->list = g_slist_prepend (user_data->list, ginst);
2695 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2697 MonoImage *image = data;
2698 MonoMethodInflated *method = key;
2701 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2702 g_assert (method->declaring->klass->image == image ||
2703 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2704 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2710 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2712 MonoImage *image = data;
2713 MonoInflatedMethodSignature *sig = key;
2715 return signature_in_image (sig->sig, image) ||
2716 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2717 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2721 check_gmethod (gpointer key, gpointer value, gpointer data)
2723 MonoMethodInflated *method = key;
2724 MonoImage *image = data;
2726 if (method->context.class_inst)
2727 g_assert (!ginst_in_image (method->context.class_inst, image));
2728 if (method->context.method_inst)
2729 g_assert (!ginst_in_image (method->context.method_inst, image));
2730 if (((MonoMethod*)method)->signature)
2731 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2737 * Run a consistency check on the image set data structures.
2739 static G_GNUC_UNUSED void
2740 check_image_sets (MonoImage *image)
2743 GSList *l = image->image_sets;
2748 for (i = 0; i < image_sets->len; ++i) {
2749 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2751 if (!g_slist_find (l, set)) {
2752 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2758 mono_metadata_clean_for_image (MonoImage *image)
2760 CleanForImageUserData ginst_data, gclass_data;
2761 GSList *l, *set_list;
2763 //check_image_sets (image);
2766 * The data structures could reference each other so we delete them in two phases.
2767 * This is required because of the hashing functions in gclass/ginst_cache.
2769 ginst_data.image = gclass_data.image = image;
2770 ginst_data.list = gclass_data.list = NULL;
2772 /* Collect the items to delete */
2773 /* delete_image_set () modifies the lists so make a copy */
2774 for (l = image->image_sets; l; l = l->next) {
2775 MonoImageSet *set = l->data;
2777 mono_image_set_lock (set);
2778 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2779 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2780 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2781 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2782 mono_image_set_unlock (set);
2785 /* Delete the removed items */
2786 for (l = ginst_data.list; l; l = l->next)
2787 free_generic_inst (l->data);
2788 for (l = gclass_data.list; l; l = l->next)
2789 free_generic_class (l->data);
2790 g_slist_free (ginst_data.list);
2791 g_slist_free (gclass_data.list);
2792 /* delete_image_set () modifies the lists so make a copy */
2793 set_list = g_slist_copy (image->image_sets);
2794 for (l = set_list; l; l = l->next) {
2795 MonoImageSet *set = l->data;
2797 delete_image_set (set);
2799 g_slist_free (set_list);
2803 free_inflated_method (MonoMethodInflated *imethod)
2806 MonoMethod *method = (MonoMethod*)imethod;
2808 if (method->signature)
2809 mono_metadata_free_inflated_signature (method->signature);
2811 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))) {
2812 MonoMethodHeader *header = imethod->header;
2815 /* Allocated in inflate_generic_header () */
2816 for (i = 0; i < header->num_locals; ++i)
2817 mono_metadata_free_type (header->locals [i]);
2818 g_free (header->clauses);
2827 free_generic_inst (MonoGenericInst *ginst)
2831 /* The ginst itself is allocated from the image set mempool */
2832 for (i = 0; i < ginst->type_argc; ++i)
2833 mono_metadata_free_type (ginst->type_argv [i]);
2837 free_generic_class (MonoGenericClass *gclass)
2839 /* The gclass itself is allocated from the image set mempool */
2840 if (gclass->is_dynamic)
2841 mono_reflection_free_dynamic_generic_class (gclass);
2842 if (gclass->cached_class && gclass->cached_class->interface_id)
2843 mono_unload_interface_id (gclass->cached_class);
2847 free_inflated_signature (MonoInflatedMethodSignature *sig)
2849 mono_metadata_free_inflated_signature (sig->sig);
2854 * mono_metadata_get_inflated_signature:
2856 * Given an inflated signature and a generic context, return a canonical copy of the
2857 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2859 MonoMethodSignature *
2860 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2862 MonoInflatedMethodSignature helper;
2863 MonoInflatedMethodSignature *res;
2868 helper.context.class_inst = context->class_inst;
2869 helper.context.method_inst = context->method_inst;
2871 collect_data_init (&data);
2873 collect_inflated_signature_images (&helper, &data);
2875 set = get_image_set (data.images, data.nimages);
2877 collect_data_free (&data);
2879 mono_image_set_lock (set);
2881 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2883 res = g_new0 (MonoInflatedMethodSignature, 1);
2885 res->context.class_inst = context->class_inst;
2886 res->context.method_inst = context->method_inst;
2887 g_hash_table_insert (set->gsignature_cache, res, res);
2890 mono_image_set_unlock (set);
2896 mono_metadata_get_image_set_for_method (MonoMethodInflated *method)
2899 CollectData image_set_data;
2901 collect_data_init (&image_set_data);
2902 collect_method_images (method, &image_set_data);
2903 set = get_image_set (image_set_data.images, image_set_data.nimages);
2904 collect_data_free (&image_set_data);
2910 * mono_metadata_get_generic_inst:
2912 * Given a list of types, return a MonoGenericInst that represents that list.
2913 * The returned MonoGenericInst has its own copy of the list of types. The list
2914 * passed in the argument can be freed, modified or disposed of.
2918 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2920 MonoGenericInst *ginst;
2923 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2927 for (i = 0; i < type_argc; ++i)
2928 if (mono_class_is_open_constructed_type (type_argv [i]))
2930 is_open = (i < type_argc);
2932 ginst = g_alloca (size);
2933 memset (ginst, 0, sizeof (MonoGenericInst));
2934 ginst->is_open = is_open;
2935 ginst->type_argc = type_argc;
2936 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2938 collect_data_init (&data);
2940 collect_ginst_images (ginst, &data);
2942 set = get_image_set (data.images, data.nimages);
2944 collect_data_free (&data);
2946 mono_image_set_lock (set);
2948 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2950 ginst = mono_image_set_alloc0 (set, size);
2951 #ifndef MONO_SMALL_CONFIG
2952 ginst->id = ++next_generic_inst_id;
2954 ginst->is_open = is_open;
2955 ginst->type_argc = type_argc;
2957 for (i = 0; i < type_argc; ++i)
2958 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2960 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2963 mono_image_set_unlock (set);
2968 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2970 MonoGenericContainer *container = container_class->generic_container;
2972 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2974 return inst == container->context.class_inst;
2978 * mono_metadata_lookup_generic_class:
2980 * Returns a MonoGenericClass with the given properties.
2984 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2986 MonoGenericClass *gclass;
2987 MonoGenericClass helper;
2988 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2992 helper.container_class = container_class;
2993 helper.context.class_inst = inst;
2994 helper.context.method_inst = NULL;
2995 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2996 helper.is_tb_open = is_tb_open;
2997 helper.cached_class = NULL;
2999 collect_data_init (&data);
3001 collect_gclass_images (&helper, &data);
3003 set = get_image_set (data.images, data.nimages);
3005 collect_data_free (&data);
3007 mono_image_set_lock (set);
3009 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
3011 /* A tripwire just to keep us honest */
3012 g_assert (!helper.cached_class);
3015 mono_image_set_unlock (set);
3020 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
3021 gclass = &dgclass->generic_class;
3022 gclass->is_dynamic = 1;
3024 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
3027 gclass->is_tb_open = is_tb_open;
3028 gclass->container_class = container_class;
3029 gclass->context.class_inst = inst;
3030 gclass->context.method_inst = NULL;
3031 gclass->owner = set;
3032 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
3033 gclass->cached_class = container_class;
3035 g_hash_table_insert (set->gclass_cache, gclass, gclass);
3037 mono_image_set_unlock (set);
3043 * mono_metadata_inflate_generic_inst:
3045 * Instantiate the generic instance @ginst with the context @context.
3046 * Check @error for success.
3050 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
3052 MonoType **type_argv;
3053 MonoGenericInst *nginst = NULL;
3056 mono_error_init (error);
3058 if (!ginst->is_open)
3061 type_argv = g_new0 (MonoType*, ginst->type_argc);
3063 for (i = 0; i < ginst->type_argc; i++) {
3064 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
3065 if (!mono_error_ok (error))
3070 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
3073 for (i = 0; i < count; i++)
3074 mono_metadata_free_type (type_argv [i]);
3081 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
3082 int count, const char *ptr, const char **rptr)
3084 MonoType **type_argv;
3085 MonoGenericInst *ginst;
3088 type_argv = g_new0 (MonoType*, count);
3090 for (i = 0; i < count; i++) {
3091 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
3102 ginst = mono_metadata_get_generic_inst (count, type_argv);
3110 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3111 const char *ptr, const char **rptr)
3113 MonoGenericInst *inst;
3118 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
3122 gklass = mono_class_from_mono_type (gtype);
3123 if (!gklass->generic_container)
3126 count = mono_metadata_decode_value (ptr, &ptr);
3127 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
3134 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3140 * @gc: The generic container to normalize
3141 * @type: The kind of generic parameters the resulting generic-container should contain
3144 static MonoGenericContainer *
3145 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3147 gboolean is_var = (type == MONO_TYPE_VAR);
3151 g_assert (is_var || type == MONO_TYPE_MVAR);
3154 if (gc->is_method || gc->parent)
3156 * The current MonoGenericContainer is a generic method -> its `parent'
3157 * points to the containing class'es container.
3166 * mono_metadata_parse_generic_param:
3167 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3168 * see mono_metadata_parse_type_full() for details.
3169 * Internal routine to parse a generic type parameter.
3170 * LOCKING: Acquires the loader lock
3172 static MonoGenericParam *
3173 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3174 MonoTypeEnum type, const char *ptr, const char **rptr)
3176 int index = mono_metadata_decode_value (ptr, &ptr);
3180 generic_container = select_container (generic_container, type);
3181 if (!generic_container) {
3182 /* Create dummy MonoGenericParam */
3183 MonoGenericParam *param;
3185 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3192 if (index >= generic_container->type_argc)
3195 return mono_generic_container_get_param (generic_container, index);
3199 * mono_metadata_get_shared_type:
3201 * Return a shared instance of TYPE, if available, NULL otherwise.
3202 * Shared MonoType instances help save memory. Their contents should not be modified
3203 * by the caller. They do not need to be freed as their lifetime is bound by either
3204 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3205 * instance they are embedded in. If they are freed, they should be freed using
3206 * mono_metadata_free_type () instead of g_free ().
3209 mono_metadata_get_shared_type (MonoType *type)
3213 /* No need to use locking since nobody is modifying the hash table */
3214 if ((cached = g_hash_table_lookup (type_cache, type)))
3217 switch (type->type){
3218 case MONO_TYPE_CLASS:
3219 case MONO_TYPE_VALUETYPE:
3220 if (type == &type->data.klass->byval_arg)
3222 if (type == &type->data.klass->this_arg)
3233 compare_type_literals (int class_type, int type_type)
3235 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3236 * See mcs/test/gtest-440. and #650936.
3237 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3241 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3244 if (class_type == type_type)
3247 if (type_type == MONO_TYPE_CLASS)
3248 return class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT;
3250 g_assert (type_type == MONO_TYPE_VALUETYPE);
3251 switch (class_type) {
3252 case MONO_TYPE_BOOLEAN:
3253 case MONO_TYPE_CHAR:
3266 case MONO_TYPE_CLASS:
3274 * do_mono_metadata_parse_type:
3275 * @type: MonoType to be filled in with the return value
3277 * @generic_context: generics_context
3278 * @transient: whenever to allocate data from the heap
3279 * @ptr: pointer to the encoded type
3280 * @rptr: pointer where the end of the encoded type is saved
3282 * Internal routine used to "fill" the contents of @type from an
3283 * allocated pointer. This is done this way to avoid doing too
3284 * many mini-allocations (particularly for the MonoFieldType which
3285 * most of the time is just a MonoType, but sometimes might be augmented).
3287 * This routine is used by mono_metadata_parse_type and
3288 * mono_metadata_parse_field_type
3290 * This extracts a Type as specified in Partition II (22.2.12)
3292 * Returns: FALSE if the type could not be loaded
3295 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3296 gboolean transient, const char *ptr, const char **rptr)
3299 type->type = mono_metadata_decode_value (ptr, &ptr);
3301 switch (type->type){
3302 case MONO_TYPE_VOID:
3303 case MONO_TYPE_BOOLEAN:
3304 case MONO_TYPE_CHAR:
3317 case MONO_TYPE_STRING:
3318 case MONO_TYPE_OBJECT:
3319 case MONO_TYPE_TYPEDBYREF:
3321 case MONO_TYPE_VALUETYPE:
3322 case MONO_TYPE_CLASS: {
3326 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3327 class = mono_class_get_checked (m, token, &error);
3328 type->data.klass = class;
3330 mono_loader_set_error_from_mono_error (&error);
3331 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3334 if (!compare_type_literals (class->byval_arg.type, type->type))
3338 case MONO_TYPE_SZARRAY: {
3339 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
3342 type->data.klass = mono_class_from_mono_type (etype);
3343 if (!type->data.klass)
3348 type->data.type = mono_metadata_parse_type_internal (m, container, MONO_PARSE_MOD_TYPE, 0, transient, ptr, &ptr);
3349 if (!type->data.type)
3352 case MONO_TYPE_FNPTR: {
3354 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr, &error);
3355 if (!type->data.method) {
3356 mono_loader_set_error_from_mono_error (&error);
3357 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
3362 case MONO_TYPE_ARRAY:
3363 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr);
3364 if (!type->data.array)
3367 case MONO_TYPE_MVAR:
3368 if (container && !container->is_method)
3371 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
3372 if (!type->data.generic_param)
3375 case MONO_TYPE_GENERICINST:
3376 ok = do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
3379 g_warning ("type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3389 * mono_metadata_free_type:
3390 * @type: type to free
3392 * Free the memory allocated for type @type which is allocated on the heap.
3395 mono_metadata_free_type (MonoType *type)
3397 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3400 switch (type->type){
3401 case MONO_TYPE_OBJECT:
3402 case MONO_TYPE_STRING:
3403 if (!type->data.klass)
3406 case MONO_TYPE_CLASS:
3407 case MONO_TYPE_VALUETYPE:
3408 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3412 mono_metadata_free_type (type->data.type);
3414 case MONO_TYPE_FNPTR:
3415 mono_metadata_free_method_signature (type->data.method);
3417 case MONO_TYPE_ARRAY:
3418 mono_metadata_free_array (type->data.array);
3429 hex_dump (const char *buffer, int base, int count)
3431 int show_header = 1;
3439 for (i = 0; i < count; i++){
3442 printf ("\n0x%08x: ", (unsigned char) base + i);
3444 printf ("%02x ", (unsigned char) (buffer [i]));
3451 * @ptr: Points to the beginning of the Section Data (25.3)
3453 static MonoExceptionClause*
3454 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3456 unsigned char sect_data_flags;
3458 guint32 sect_data_len;
3459 MonoExceptionClause* clauses = NULL;
3462 /* align on 32-bit boundary */
3463 ptr = dword_align (ptr);
3464 sect_data_flags = *ptr;
3467 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3469 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3472 sect_data_len = ptr [0];
3476 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3477 const unsigned char *p = dword_align (ptr);
3479 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3480 /* we could just store a pointer if we don't need to byteswap */
3481 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3482 for (i = 0; i < *num_clauses; ++i) {
3483 MonoExceptionClause *ec = &clauses [i];
3486 ec->flags = read32 (p);
3487 ec->try_offset = read32 (p + 4);
3488 ec->try_len = read32 (p + 8);
3489 ec->handler_offset = read32 (p + 12);
3490 ec->handler_len = read32 (p + 16);
3491 tof_value = read32 (p + 20);
3494 ec->flags = read16 (p);
3495 ec->try_offset = read16 (p + 2);
3496 ec->try_len = *(p + 4);
3497 ec->handler_offset = read16 (p + 5);
3498 ec->handler_len = *(p + 7);
3499 tof_value = read32 (p + 8);
3502 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3503 ec->data.filter_offset = tof_value;
3504 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3505 ec->data.catch_class = NULL;
3508 ec->data.catch_class = mono_class_get_checked (m, tof_value, &error);
3509 if (!mono_error_ok (&error)) {
3510 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3516 ec->data.catch_class = NULL;
3518 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3522 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3523 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3530 * mono_method_get_header_summary:
3531 * @method: The method to get the header.
3532 * @summary: Where to store the header
3535 * Returns: true if the header was properly decoded.
3538 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3544 unsigned char flags, format;
3547 /*Only the GMD has a pointer to the metadata.*/
3548 while (method->is_inflated)
3549 method = ((MonoMethodInflated*)method)->declaring;
3551 summary->code_size = 0;
3552 summary->has_clauses = FALSE;
3554 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3555 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))
3558 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3559 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3562 summary->code_size = header->code_size;
3563 summary->has_clauses = header->num_clauses > 0;
3568 idx = mono_metadata_token_index (method->token);
3569 img = method->klass->image;
3570 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3572 /*We must run the verifier since we'll be decoding it.*/
3573 if (!mono_verifier_verify_method_header (img, rva, NULL))
3576 ptr = mono_image_rva_map (img, rva);
3579 flags = *(const unsigned char *)ptr;
3580 format = flags & METHOD_HEADER_FORMAT_MASK;
3583 case METHOD_HEADER_TINY_FORMAT:
3585 summary->code_size = flags >> 2;
3587 case METHOD_HEADER_FAT_FORMAT:
3588 fat_flags = read16 (ptr);
3590 summary->code_size = read32 (ptr);
3591 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3592 summary->has_clauses = TRUE;
3601 * mono_metadata_parse_mh_full:
3602 * @m: metadata context
3603 * @generic_context: generics context
3604 * @ptr: pointer to the method header.
3606 * Decode the method header at @ptr, including pointer to the IL code,
3607 * info about local variables and optional exception tables.
3608 * This is a Mono runtime internal function.
3610 * LOCKING: Acquires the loader lock.
3612 * Returns: a transient MonoMethodHeader allocated from the heap.
3615 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3617 MonoMethodHeader *mh = NULL;
3618 unsigned char flags = *(const unsigned char *) ptr;
3619 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3621 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3622 const unsigned char *code;
3623 MonoExceptionClause* clauses = NULL;
3624 int num_clauses = 0;
3625 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3626 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3628 g_return_val_if_fail (ptr != NULL, NULL);
3631 case METHOD_HEADER_TINY_FORMAT:
3632 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3635 mh->is_transient = TRUE;
3636 local_var_sig_tok = 0;
3637 mh->code_size = flags >> 2;
3638 mh->code = (unsigned char*)ptr;
3640 case METHOD_HEADER_FAT_FORMAT:
3641 fat_flags = read16 (ptr);
3643 max_stack = read16 (ptr);
3645 code_size = read32 (ptr);
3647 local_var_sig_tok = read32 (ptr);
3650 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3655 code = (unsigned char*)ptr;
3657 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3661 * There are more sections
3663 ptr = (char*)code + code_size;
3669 if (local_var_sig_tok) {
3670 int idx = (local_var_sig_tok & 0xffffff)-1;
3671 if (idx >= t->rows || idx < 0)
3673 mono_metadata_decode_row (t, idx, cols, 1);
3675 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3678 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3679 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3680 if (local_var_sig_tok) {
3681 const char *locals_ptr;
3684 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3685 mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3686 if (*locals_ptr != 0x07)
3687 g_warning ("wrong signature for locals blob");
3689 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3690 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3691 mh->num_locals = len;
3692 for (i = 0; i < len; ++i) {
3693 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3694 MONO_PARSE_LOCAL, 0, TRUE, locals_ptr, &locals_ptr);
3695 if (!mh->locals [i])
3699 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3702 mh->code_size = code_size;
3703 mh->max_stack = max_stack;
3704 mh->is_transient = TRUE;
3705 mh->init_locals = init_locals;
3707 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3708 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3710 mh->clauses = clausesp;
3711 mh->num_clauses = num_clauses;
3722 * mono_metadata_parse_mh:
3723 * @generic_context: generics context
3724 * @ptr: pointer to the method header.
3726 * Decode the method header at @ptr, including pointer to the IL code,
3727 * info about local variables and optional exception tables.
3729 * Returns: a transient MonoMethodHeader allocated from the heap.
3732 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3734 return mono_metadata_parse_mh_full (m, NULL, ptr);
3738 * mono_metadata_free_mh:
3739 * @mh: a method header
3741 * Free the memory allocated for the method header.
3744 mono_metadata_free_mh (MonoMethodHeader *mh)
3748 /* If it is not transient it means it's part of a wrapper method,
3749 * or a SRE-generated method, so the lifetime in that case is
3750 * dictated by the method's own lifetime
3752 if (mh->is_transient) {
3753 for (i = 0; i < mh->num_locals; ++i)
3754 mono_metadata_free_type (mh->locals [i]);
3760 * mono_method_header_get_code:
3761 * @header: a MonoMethodHeader pointer
3762 * @code_size: memory location for returning the code size
3763 * @max_stack: memory location for returning the max stack
3765 * Method header accessor to retreive info about the IL code properties:
3766 * a pointer to the IL code itself, the size of the code and the max number
3767 * of stack slots used by the code.
3769 * Returns: pointer to the IL code represented by the method header.
3771 const unsigned char*
3772 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3775 *code_size = header->code_size;
3777 *max_stack = header->max_stack;
3778 return header->code;
3782 * mono_method_header_get_locals:
3783 * @header: a MonoMethodHeader pointer
3784 * @num_locals: memory location for returning the number of local variables
3785 * @init_locals: memory location for returning the init_locals flag
3787 * Method header accessor to retreive info about the local variables:
3788 * an array of local types, the number of locals and whether the locals
3789 * are supposed to be initialized to 0 on method entry
3791 * Returns: pointer to an array of types of the local variables
3794 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3797 *num_locals = header->num_locals;
3799 *init_locals = header->init_locals;
3800 return header->locals;
3804 * mono_method_header_get_num_clauses:
3805 * @header: a MonoMethodHeader pointer
3807 * Method header accessor to retreive the number of exception clauses.
3809 * Returns: the number of exception clauses present
3812 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3814 return header->num_clauses;
3818 * mono_method_header_get_clauses:
3819 * @header: a MonoMethodHeader pointer
3820 * @method: MonoMethod the header belongs to
3821 * @iter: pointer to a iterator
3822 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3824 * Get the info about the exception clauses in the method. Set *iter to NULL to
3825 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3826 * At each iteration, the structure pointed to by clause if filled with the
3827 * exception clause information.
3829 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3833 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3835 MonoExceptionClause *sc;
3836 /* later we'll be able to use this interface to parse the clause info on demand,
3837 * without allocating anything.
3839 if (!iter || !header->num_clauses)
3842 *iter = sc = header->clauses;
3848 if (sc < header->clauses + header->num_clauses) {
3857 * mono_metadata_parse_field_type:
3858 * @m: metadata context to extract information from
3859 * @ptr: pointer to the field signature
3860 * @rptr: pointer updated to match the end of the decoded stream
3862 * Parses the field signature, and returns the type information for it.
3864 * Returns: The MonoType that was extracted from @ptr.
3867 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3869 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3873 * mono_metadata_parse_param:
3874 * @m: metadata context to extract information from
3875 * @ptr: pointer to the param signature
3876 * @rptr: pointer updated to match the end of the decoded stream
3878 * Parses the param signature, and returns the type information for it.
3880 * Returns: The MonoType that was extracted from @ptr.
3883 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3885 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3889 * mono_metadata_token_from_dor:
3890 * @dor_token: A TypeDefOrRef coded index
3892 * dor_token is a TypeDefOrRef coded index: it contains either
3893 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3894 * bits contain an index into the table.
3896 * Returns: an expanded token
3899 mono_metadata_token_from_dor (guint32 dor_index)
3903 table = dor_index & 0x03;
3904 idx = dor_index >> 2;
3907 case 0: /* TypeDef */
3908 return MONO_TOKEN_TYPE_DEF | idx;
3909 case 1: /* TypeRef */
3910 return MONO_TOKEN_TYPE_REF | idx;
3911 case 2: /* TypeSpec */
3912 return MONO_TOKEN_TYPE_SPEC | idx;
3914 g_assert_not_reached ();
3921 * We use this to pass context information to the row locator
3924 int idx; /* The index that we are trying to locate */
3925 int col_idx; /* The index in the row where idx may be stored */
3926 MonoTableInfo *t; /* pointer to the table */
3931 * How the row locator works.
3936 * ___|___------> _______
3939 * A column in the rows of table A references an index in table B.
3940 * For example A may be the TYPEDEF table and B the METHODDEF table.
3942 * Given an index in table B we want to get the row in table A
3943 * where the column n references our index in B.
3945 * In the locator_t structure:
3947 * col_idx is the column number
3948 * index is the index in table B
3949 * result will be the index in table A
3952 * Table A Table B column (in table A)
3953 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
3954 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
3955 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
3956 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
3957 * METHODSEM PROPERTY ASSOCIATION (encoded index)
3959 * Note that we still don't support encoded indexes.
3963 typedef_locator (const void *a, const void *b)
3965 locator_t *loc = (locator_t *) a;
3966 const char *bb = (const char *) b;
3967 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
3968 guint32 col, col_next;
3970 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
3976 * Need to check that the next row is valid.
3978 if (typedef_index + 1 < loc->t->rows) {
3979 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
3980 if (loc->idx >= col_next)
3983 if (col == col_next)
3987 loc->result = typedef_index;
3993 table_locator (const void *a, const void *b)
3995 locator_t *loc = (locator_t *) a;
3996 const char *bb = (const char *) b;
3997 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4000 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4002 if (loc->idx == col) {
4003 loc->result = table_index;
4013 declsec_locator (const void *a, const void *b)
4015 locator_t *loc = (locator_t *) a;
4016 const char *bb = (const char *) b;
4017 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4020 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4022 if (loc->idx == col) {
4023 loc->result = table_index;
4035 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
4036 * which contains IDX.
4039 search_ptr_table (MonoImage *image, int table, int idx)
4041 MonoTableInfo *ptrdef = &image->tables [table];
4044 /* Use a linear search to find our index in the table */
4045 for (i = 0; i < ptrdef->rows; i ++)
4046 /* All the Ptr tables have the same structure */
4047 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
4050 if (i < ptrdef->rows)
4057 * mono_metadata_typedef_from_field:
4058 * @meta: metadata context
4059 * @index: FieldDef token
4061 * Returns: the 1-based index into the TypeDef table of the type that
4062 * declared the field described by @index, or 0 if not found.
4065 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
4067 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4073 loc.idx = mono_metadata_token_index (index);
4074 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
4077 if (meta->uncompressed_metadata)
4078 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4080 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4083 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4084 return loc.result + 1;
4088 * mono_metadata_typedef_from_method:
4089 * @meta: metadata context
4090 * @index: MethodDef token
4092 * Returns: the 1-based index into the TypeDef table of the type that
4093 * declared the method described by @index. 0 if not found.
4096 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
4098 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4104 loc.idx = mono_metadata_token_index (index);
4105 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
4108 if (meta->uncompressed_metadata)
4109 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
4111 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4114 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4115 return loc.result + 1;
4119 * mono_metadata_interfaces_from_typedef_full:
4120 * @meta: metadata context
4121 * @index: typedef token
4122 * @interfaces: Out parameter used to store the interface array
4123 * @count: Out parameter used to store the number of interfaces
4124 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
4125 * @context: The generic context
4127 * The array of interfaces that the @index typedef token implements is returned in
4128 * @interfaces. The number of elements in the array is returned in @count.
4131 * Returns: TRUE on success, FALSE on failure.
4134 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context, MonoError *error)
4136 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
4139 guint32 cols [MONO_INTERFACEIMPL_SIZE];
4145 mono_error_init (error);
4150 loc.idx = mono_metadata_token_index (index);
4151 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
4154 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4159 * We may end up in the middle of the rows...
4162 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4168 while (pos < tdef->rows) {
4169 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4170 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4175 if (heap_alloc_result)
4176 result = g_new0 (MonoClass*, pos - start);
4178 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4181 while (pos < tdef->rows) {
4184 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4185 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4187 iface = mono_class_get_and_inflate_typespec_checked (
4188 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context, error);
4191 result [pos - start] = iface;
4194 *count = pos - start;
4195 *interfaces = result;
4200 * @meta: metadata context
4201 * @index: typedef token
4202 * @count: Out parameter used to store the number of interfaces
4204 * The array of interfaces that the @index typedef token implements is returned in
4205 * @interfaces. The number of elements in the array is returned in @count. The returned
4206 * array is g_malloc'd and the caller must free it.
4208 * LOCKING: Acquires the loader lock .
4210 * Returns: the interface array on success, NULL on failure.
4214 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4217 MonoClass **interfaces = NULL;
4220 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL, &error);
4221 g_assert (mono_error_ok (&error)); /* FIXME dont swallow the error */
4229 * mono_metadata_nested_in_typedef:
4230 * @meta: metadata context
4231 * @index: typedef token
4233 * Returns: the 1-based index into the TypeDef table of the type
4234 * where the type described by @index is nested.
4235 * Returns 0 if @index describes a non-nested type.
4238 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4240 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4246 loc.idx = mono_metadata_token_index (index);
4247 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4250 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4253 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4254 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4258 * mono_metadata_nesting_typedef:
4259 * @meta: metadata context
4260 * @index: typedef token
4262 * Returns: the 1-based index into the TypeDef table of the first type
4263 * that is nested inside the type described by @index. The search starts at
4264 * @start_index. returns 0 if no such type is found.
4267 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4269 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4271 guint32 class_index = mono_metadata_token_index (index);
4276 start = start_index;
4278 while (start <= tdef->rows) {
4279 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4285 if (start > tdef->rows)
4292 * mono_metadata_packing_from_typedef:
4293 * @meta: metadata context
4294 * @index: token representing a type
4296 * Returns: the info stored in the ClassLAyout table for the given typedef token
4297 * into the @packing and @size pointers.
4298 * Returns 0 if the info is not found.
4301 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4303 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4305 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4310 loc.idx = mono_metadata_token_index (index);
4311 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4314 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4317 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4319 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4321 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4323 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4324 return loc.result + 1;
4328 * mono_metadata_custom_attrs_from_index:
4329 * @meta: metadata context
4330 * @index: token representing the parent
4332 * Returns: the 1-based index into the CustomAttribute table of the first
4333 * attribute which belongs to the metadata object described by @index.
4334 * Returns 0 if no such attribute is found.
4337 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4339 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4346 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4349 /* FIXME: Index translation */
4351 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4354 /* Find the first entry by searching backwards */
4355 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4358 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4359 return loc.result + 1;
4363 * mono_metadata_declsec_from_index:
4364 * @meta: metadata context
4365 * @index: token representing the parent
4367 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4368 * attribute which belongs to the metadata object described by @index.
4369 * Returns -1 if no such attribute is found.
4372 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4374 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4381 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4384 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4387 /* Find the first entry by searching backwards */
4388 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4395 * mono_metadata_localscope_from_methoddef:
4396 * @meta: metadata context
4397 * @index: methoddef index
4399 * Returns: the 1-based index into the LocalScope table of the first
4400 * scope which belongs to the method described by @index.
4401 * Returns 0 if no such row is found.
4404 mono_metadata_localscope_from_methoddef (MonoImage *meta, guint32 index)
4406 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_LOCALSCOPE];
4413 loc.col_idx = MONO_LOCALSCOPE_METHOD;
4416 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4419 /* Find the first entry by searching backwards */
4420 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_LOCALSCOPE_METHOD) == index))
4423 return loc.result + 1;
4428 mono_backtrace (int limit)
4433 backtrace (array, limit);
4434 names = backtrace_symbols (array, limit);
4435 for (i =0; i < limit; ++i) {
4436 g_print ("\t%s\n", names [i]);
4442 static int i8_align;
4445 * mono_type_set_alignment:
4447 * Set the alignment used by runtime to layout fields etc. of type TYPE to ALIGN.
4448 * This should only be used in AOT mode since the resulting layout will not match the
4452 mono_type_set_alignment (MonoTypeEnum type, int align)
4454 /* Support only a few types whose alignment is abi dependent */
4460 g_assert_not_reached ();
4467 * @t: the type to return the size of
4469 * Returns: the number of bytes required to hold an instance of this
4473 mono_type_size (MonoType *t, int *align)
4475 MonoTypeEnum simple_type;
4482 *align = MONO_ABI_ALIGNOF (gpointer);
4483 return sizeof (gpointer);
4486 simple_type = t->type;
4488 switch (simple_type) {
4489 case MONO_TYPE_VOID:
4492 case MONO_TYPE_BOOLEAN:
4493 *align = MONO_ABI_ALIGNOF (gint8);
4497 *align = MONO_ABI_ALIGNOF (gint8);
4499 case MONO_TYPE_CHAR:
4502 *align = MONO_ABI_ALIGNOF (gint16);
4506 *align = MONO_ABI_ALIGNOF (gint32);
4509 *align = MONO_ABI_ALIGNOF (float);
4513 *align = MONO_ABI_ALIGNOF (gint64);
4516 *align = MONO_ABI_ALIGNOF (double);
4520 *align = MONO_ABI_ALIGNOF (gpointer);
4521 return sizeof (gpointer);
4522 case MONO_TYPE_STRING:
4523 *align = MONO_ABI_ALIGNOF (gpointer);
4524 return sizeof (gpointer);
4525 case MONO_TYPE_OBJECT:
4526 *align = MONO_ABI_ALIGNOF (gpointer);
4527 return sizeof (gpointer);
4528 case MONO_TYPE_VALUETYPE: {
4529 if (t->data.klass->enumtype)
4530 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4532 return mono_class_value_size (t->data.klass, (guint32*)align);
4534 case MONO_TYPE_CLASS:
4535 case MONO_TYPE_SZARRAY:
4537 case MONO_TYPE_FNPTR:
4538 case MONO_TYPE_ARRAY:
4539 *align = MONO_ABI_ALIGNOF (gpointer);
4540 return sizeof (gpointer);
4541 case MONO_TYPE_TYPEDBYREF:
4542 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4543 case MONO_TYPE_GENERICINST: {
4544 MonoGenericClass *gclass = t->data.generic_class;
4545 MonoClass *container_class = gclass->container_class;
4547 // g_assert (!gclass->inst->is_open);
4549 if (container_class->valuetype) {
4550 if (container_class->enumtype)
4551 return mono_type_size (mono_class_enum_basetype (container_class), align);
4553 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4555 *align = MONO_ABI_ALIGNOF (gpointer);
4556 return sizeof (gpointer);
4560 case MONO_TYPE_MVAR:
4561 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4562 *align = MONO_ABI_ALIGNOF (gpointer);
4563 return sizeof (gpointer);
4565 /* The gparam can only match types given by gshared_constraint */
4566 return mono_type_size (t->data.generic_param->gshared_constraint, align);
4570 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4576 * mono_type_stack_size:
4577 * @t: the type to return the size it uses on the stack
4579 * Returns: the number of bytes required to hold an instance of this
4580 * type on the runtime stack
4583 mono_type_stack_size (MonoType *t, int *align)
4585 return mono_type_stack_size_internal (t, align, FALSE);
4589 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4592 MonoTypeEnum simple_type;
4593 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4594 int stack_slot_size = sizeof (gpointer);
4595 int stack_slot_align = MONO_ABI_ALIGNOF (gpointer);
4596 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4597 int stack_slot_size = SIZEOF_REGISTER;
4598 int stack_slot_align = SIZEOF_REGISTER;
4601 g_assert (t != NULL);
4607 *align = stack_slot_align;
4608 return stack_slot_size;
4611 simple_type = t->type;
4612 switch (simple_type) {
4613 case MONO_TYPE_BOOLEAN:
4614 case MONO_TYPE_CHAR:
4623 case MONO_TYPE_STRING:
4624 case MONO_TYPE_OBJECT:
4625 case MONO_TYPE_CLASS:
4626 case MONO_TYPE_SZARRAY:
4628 case MONO_TYPE_FNPTR:
4629 case MONO_TYPE_ARRAY:
4630 *align = stack_slot_align;
4631 return stack_slot_size;
4633 case MONO_TYPE_MVAR:
4634 g_assert (allow_open);
4635 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4636 *align = stack_slot_align;
4637 return stack_slot_size;
4639 /* The gparam can only match types given by gshared_constraint */
4640 return mono_type_stack_size_internal (t->data.generic_param->gshared_constraint, align, allow_open);
4642 case MONO_TYPE_TYPEDBYREF:
4643 *align = stack_slot_align;
4644 return stack_slot_size * 3;
4646 *align = MONO_ABI_ALIGNOF (float);
4647 return sizeof (float);
4650 *align = MONO_ABI_ALIGNOF (gint64);
4651 return sizeof (gint64);
4653 *align = MONO_ABI_ALIGNOF (double);
4654 return sizeof (double);
4655 case MONO_TYPE_VALUETYPE: {
4658 if (t->data.klass->enumtype)
4659 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4661 size = mono_class_value_size (t->data.klass, (guint32*)align);
4663 *align = *align + stack_slot_align - 1;
4664 *align &= ~(stack_slot_align - 1);
4666 size += stack_slot_size - 1;
4667 size &= ~(stack_slot_size - 1);
4672 case MONO_TYPE_GENERICINST: {
4673 MonoGenericClass *gclass = t->data.generic_class;
4674 MonoClass *container_class = gclass->container_class;
4677 g_assert (!gclass->context.class_inst->is_open);
4679 if (container_class->valuetype) {
4680 if (container_class->enumtype)
4681 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4683 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4685 *align = *align + stack_slot_align - 1;
4686 *align &= ~(stack_slot_align - 1);
4688 size += stack_slot_size - 1;
4689 size &= ~(stack_slot_size - 1);
4694 *align = stack_slot_align;
4695 return stack_slot_size;
4699 g_error ("type 0x%02x unknown", t->type);
4705 mono_type_generic_inst_is_valuetype (MonoType *type)
4707 g_assert (type->type == MONO_TYPE_GENERICINST);
4708 return type->data.generic_class->container_class->valuetype;
4712 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4714 return gclass->container_class->valuetype;
4718 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4720 MonoGenericInst *i1 = g1->context.class_inst;
4721 MonoGenericInst *i2 = g2->context.class_inst;
4723 if (g1->is_dynamic != g2->is_dynamic)
4725 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4727 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4729 return g1->is_tb_open == g2->is_tb_open;
4733 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4735 MonoGenericInst *i1 = g1->context.class_inst;
4736 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4738 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4740 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4742 return !g1->is_tb_open;
4746 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4748 /* FIXME: check if this seed is good enough */
4749 guint hash = 0xc01dfee7;
4750 if (context->class_inst)
4751 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4752 if (context->method_inst)
4753 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4758 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4760 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4764 * mono_metadata_str_hash:
4766 * This should be used instead of g_str_hash for computing hash codes visible
4767 * outside this module, since g_str_hash () is not guaranteed to be stable
4768 * (its not the same in eglib for example).
4771 mono_metadata_str_hash (gconstpointer v1)
4773 /* Same as g_str_hash () in glib */
4774 char *p = (char *) v1;
4779 hash = (hash << 5) - hash + *p;
4786 * mono_metadata_type_hash:
4789 * Computes an hash value for @t1 to be used in GHashTable.
4790 * The returned hash is guaranteed to be the same across executions.
4793 mono_metadata_type_hash (MonoType *t1)
4795 guint hash = t1->type;
4797 hash |= t1->byref << 6; /* do not collide with t1->type values */
4799 case MONO_TYPE_VALUETYPE:
4800 case MONO_TYPE_CLASS:
4801 case MONO_TYPE_SZARRAY: {
4802 MonoClass *class = t1->data.klass;
4804 * Dynamic classes must not be hashed on their type since it can change
4805 * during runtime. For example, if we hash a reference type that is
4806 * later made into a valuetype.
4808 * This is specially problematic with generic instances since they are
4809 * inserted in a bunch of hash tables before been finished.
4811 if (image_is_dynamic (class->image))
4812 return (t1->byref << 6) | mono_metadata_str_hash (class->name);
4813 return ((hash << 5) - hash) ^ mono_metadata_str_hash (class->name);
4816 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4817 case MONO_TYPE_ARRAY:
4818 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4819 case MONO_TYPE_GENERICINST:
4820 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4822 case MONO_TYPE_MVAR:
4823 return ((hash << 5) - hash) ^ mono_metadata_generic_param_hash (t1->data.generic_param);
4830 mono_metadata_generic_param_hash (MonoGenericParam *p)
4833 MonoGenericParamInfo *info;
4835 hash = (mono_generic_param_num (p) << 2);
4836 if (p->gshared_constraint)
4837 hash = ((hash << 5) - hash) ^ mono_metadata_type_hash (p->gshared_constraint);
4838 info = mono_generic_param_info (p);
4839 /* Can't hash on the owner klass/method, since those might not be set when this is called */
4841 hash = ((hash << 5) - hash) ^ info->token;
4846 mono_metadata_generic_param_equal_internal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4850 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4852 if (p1->gshared_constraint && p2->gshared_constraint) {
4853 if (!mono_metadata_type_equal (p1->gshared_constraint, p2->gshared_constraint))
4856 if (p1->gshared_constraint != p2->gshared_constraint)
4861 * We have to compare the image as well because if we didn't,
4862 * the generic_inst_cache lookup wouldn't care about the image
4863 * of generic params, so what could happen is that a generic
4864 * inst with params from image A is put into the cache, then
4865 * image B gets that generic inst from the cache, image A is
4866 * unloaded, so the inst is deleted, but image B still retains
4869 * The AOT runtime doesn't set the image when it's decoding
4870 * types, so we only compare it when the owner is NULL.
4872 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2) &&
4873 (mono_generic_param_owner (p1) || p1->image == p2->image))
4877 * If `signature_only' is true, we're comparing two (method) signatures.
4878 * In this case, the owner of two type parameters doesn't need to match.
4881 return signature_only;
4885 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2)
4887 return mono_metadata_generic_param_equal_internal (p1, p2, TRUE);
4891 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4895 if (c1->generic_class && c2->generic_class)
4896 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4897 if (c1->generic_class && c2->generic_container)
4898 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4899 if (c1->generic_container && c2->generic_class)
4900 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4901 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4902 return mono_metadata_generic_param_equal_internal (
4903 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4904 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4905 return mono_metadata_generic_param_equal_internal (
4906 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4907 if (signature_only &&
4908 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4909 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4910 if (signature_only &&
4911 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
4912 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
4917 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4919 gpointer iter1 = 0, iter2 = 0;
4923 if (s1->call_convention != s2->call_convention)
4925 if (s1->sentinelpos != s2->sentinelpos)
4927 if (s1->hasthis != s2->hasthis)
4929 if (s1->explicit_this != s2->explicit_this)
4931 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4933 if (s1->param_count != s2->param_count)
4937 MonoType *t1 = mono_signature_get_params (s1, &iter1);
4938 MonoType *t2 = mono_signature_get_params (s2, &iter2);
4940 if (t1 == NULL || t2 == NULL)
4942 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
4948 * mono_metadata_type_equal:
4952 * Determine if @t1 and @t2 represent the same type.
4953 * Returns: #TRUE if @t1 and @t2 are equal.
4956 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
4958 if (t1->type != t2->type || t1->byref != t2->byref)
4962 case MONO_TYPE_VOID:
4963 case MONO_TYPE_BOOLEAN:
4964 case MONO_TYPE_CHAR:
4975 case MONO_TYPE_STRING:
4978 case MONO_TYPE_OBJECT:
4979 case MONO_TYPE_TYPEDBYREF:
4981 case MONO_TYPE_VALUETYPE:
4982 case MONO_TYPE_CLASS:
4983 case MONO_TYPE_SZARRAY:
4984 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
4986 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
4987 case MONO_TYPE_ARRAY:
4988 if (t1->data.array->rank != t2->data.array->rank)
4990 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
4991 case MONO_TYPE_GENERICINST:
4992 return _mono_metadata_generic_class_equal (
4993 t1->data.generic_class, t2->data.generic_class, signature_only);
4995 return mono_metadata_generic_param_equal_internal (
4996 t1->data.generic_param, t2->data.generic_param, signature_only);
4997 case MONO_TYPE_MVAR:
4998 return mono_metadata_generic_param_equal_internal (
4999 t1->data.generic_param, t2->data.generic_param, signature_only);
5000 case MONO_TYPE_FNPTR:
5001 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
5003 g_error ("implement type compare for %0x!", t1->type);
5011 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
5013 return do_mono_metadata_type_equal (t1, t2, FALSE);
5017 * mono_metadata_type_equal_full:
5020 * @signature_only: if signature only comparison should be made
5022 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
5023 * behaves the same way as mono_metadata_type_equal.
5024 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
5025 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
5028 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
5030 return do_mono_metadata_type_equal (t1, t2, signature_only);
5034 * mono_metadata_signature_equal:
5035 * @sig1: a signature
5036 * @sig2: another signature
5038 * Determine if @sig1 and @sig2 represent the same signature, with the
5039 * same number of arguments and the same types.
5040 * Returns: #TRUE if @sig1 and @sig2 are equal.
5043 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
5047 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
5050 if (sig1->generic_param_count != sig2->generic_param_count)
5054 * We're just comparing the signatures of two methods here:
5056 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
5057 * U and V are equal here.
5059 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
5062 for (i = 0; i < sig1->param_count; i++) {
5063 MonoType *p1 = sig1->params[i];
5064 MonoType *p2 = sig2->params[i];
5066 /* if (p1->attrs != p2->attrs)
5069 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
5073 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
5079 * mono_metadata_type_dup:
5080 * @image: image to alloc memory from
5081 * @original: type to duplicate
5083 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
5086 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
5089 int sizeof_o = MONO_SIZEOF_TYPE;
5091 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
5093 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
5095 memcpy (r, o, sizeof_o);
5097 if (o->type == MONO_TYPE_PTR) {
5098 r->data.type = mono_metadata_type_dup (image, o->data.type);
5099 } else if (o->type == MONO_TYPE_ARRAY) {
5100 r->data.array = mono_dup_array_type (image, o->data.array);
5101 } else if (o->type == MONO_TYPE_FNPTR) {
5102 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
5103 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
5109 mono_signature_hash (MonoMethodSignature *sig)
5111 guint i, res = sig->ret->type;
5113 for (i = 0; i < sig->param_count; i++)
5114 res = (res << 5) - res + mono_type_hash (sig->params[i]);
5120 * mono_metadata_encode_value:
5121 * @value: value to encode
5122 * @buf: buffer where to write the compressed representation
5123 * @endbuf: pointer updated to point at the end of the encoded output
5125 * Encodes the value @value in the compressed representation used
5126 * in metadata and stores the result in @buf. @buf needs to be big
5127 * enough to hold the data (4 bytes).
5130 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
5136 else if (value < 0x4000) {
5137 p [0] = 0x80 | (value >> 8);
5138 p [1] = value & 0xff;
5141 p [0] = (value >> 24) | 0xc0;
5142 p [1] = (value >> 16) & 0xff;
5143 p [2] = (value >> 8) & 0xff;
5144 p [3] = value & 0xff;
5152 * mono_metadata_field_info:
5153 * @meta: the Image the field is defined in
5154 * @index: the index in the field table representing the field
5155 * @offset: a pointer to an integer where to store the offset that
5156 * may have been specified for the field in a FieldLayout table
5157 * @rva: a pointer to the RVA of the field data in the image that
5158 * may have been defined in a FieldRVA table
5159 * @marshal_spec: a pointer to the marshal spec that may have been
5160 * defined for the field in a FieldMarshal table.
5162 * Gather info for field @index that may have been defined in the FieldLayout,
5163 * FieldRVA and FieldMarshal tables.
5164 * Either of offset, rva and marshal_spec can be NULL if you're not interested
5168 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5169 MonoMarshalSpec **marshal_spec)
5171 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
5175 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5176 MonoMarshalSpec **marshal_spec)
5178 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
5182 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5183 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
5185 MonoTableInfo *tdef;
5188 loc.idx = index + 1;
5189 if (meta->uncompressed_metadata)
5190 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
5193 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
5195 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
5198 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5199 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
5201 *offset = (guint32)-1;
5205 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
5207 loc.col_idx = MONO_FIELD_RVA_FIELD;
5210 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5212 * LAMESPEC: There is no signature, no nothing, just the raw data.
5214 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
5222 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
5223 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, meta, p);
5230 * mono_metadata_get_constant_index:
5231 * @meta: the Image the field is defined in
5232 * @index: the token that may have a row defined in the constants table
5233 * @hint: possible position for the row
5235 * @token must be a FieldDef, ParamDef or PropertyDef token.
5237 * Returns: the index into the Constants table or 0 if not found.
5240 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
5242 MonoTableInfo *tdef;
5244 guint32 index = mono_metadata_token_index (token);
5246 tdef = &meta->tables [MONO_TABLE_CONSTANT];
5247 index <<= MONO_HASCONSTANT_BITS;
5248 switch (mono_metadata_token_table (token)) {
5249 case MONO_TABLE_FIELD:
5250 index |= MONO_HASCONSTANT_FIEDDEF;
5252 case MONO_TABLE_PARAM:
5253 index |= MONO_HASCONSTANT_PARAM;
5255 case MONO_TABLE_PROPERTY:
5256 index |= MONO_HASCONSTANT_PROPERTY;
5259 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5263 loc.col_idx = MONO_CONSTANT_PARENT;
5266 /* FIXME: Index translation */
5268 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5271 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5272 return loc.result + 1;
5278 * mono_metadata_events_from_typedef:
5279 * @meta: metadata context
5280 * @index: 0-based index (in the TypeDef table) describing a type
5282 * Returns: the 0-based index in the Event table for the events in the
5283 * type. The last event that belongs to the type (plus 1) is stored
5284 * in the @end_idx pointer.
5287 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5291 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5299 loc.col_idx = MONO_EVENT_MAP_PARENT;
5300 loc.idx = index + 1;
5302 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5305 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5306 if (loc.result + 1 < tdef->rows) {
5307 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5309 end = meta->tables [MONO_TABLE_EVENT].rows;
5317 * mono_metadata_methods_from_event:
5318 * @meta: metadata context
5319 * @index: 0-based index (in the Event table) describing a event
5321 * Returns: the 0-based index in the MethodDef table for the methods in the
5322 * event. The last method that belongs to the event (plus 1) is stored
5323 * in the @end_idx pointer.
5326 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5330 guint32 cols [MONO_METHOD_SEMA_SIZE];
5331 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5337 if (meta->uncompressed_metadata)
5338 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5341 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5342 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5344 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5349 * We may end up in the middle of the rows...
5352 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5358 while (end < msemt->rows) {
5359 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5360 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5369 * mono_metadata_properties_from_typedef:
5370 * @meta: metadata context
5371 * @index: 0-based index (in the TypeDef table) describing a type
5373 * Returns: the 0-based index in the Property table for the properties in the
5374 * type. The last property that belongs to the type (plus 1) is stored
5375 * in the @end_idx pointer.
5378 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5382 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5390 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5391 loc.idx = index + 1;
5393 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5396 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5397 if (loc.result + 1 < tdef->rows) {
5398 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5400 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5408 * mono_metadata_methods_from_property:
5409 * @meta: metadata context
5410 * @index: 0-based index (in the PropertyDef table) describing a property
5412 * Returns: the 0-based index in the MethodDef table for the methods in the
5413 * property. The last method that belongs to the property (plus 1) is stored
5414 * in the @end_idx pointer.
5417 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5421 guint32 cols [MONO_METHOD_SEMA_SIZE];
5422 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5428 if (meta->uncompressed_metadata)
5429 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5432 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5433 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5435 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5440 * We may end up in the middle of the rows...
5443 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5449 while (end < msemt->rows) {
5450 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5451 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5460 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5463 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5468 /* No index translation seems to be needed */
5471 loc.col_idx = MONO_IMPLMAP_MEMBER;
5472 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5474 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5477 return loc.result + 1;
5481 * @image: context where the image is created
5482 * @type_spec: typespec token
5483 * @deprecated use mono_type_create_from_typespec_checked that has proper error handling
5485 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5489 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5492 MonoType *type = mono_type_create_from_typespec_checked (image, type_spec, &error);
5494 g_error ("Could not create typespec %x due to %s", type_spec, mono_error_get_message (&error));
5499 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error)
5502 guint32 idx = mono_metadata_token_index (type_spec);
5504 guint32 cols [MONO_TYPESPEC_SIZE];
5506 MonoType *type, *type2;
5508 mono_error_init (error);
5510 mono_image_lock (image);
5511 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5512 mono_image_unlock (image);
5516 t = &image->tables [MONO_TABLE_TYPESPEC];
5518 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5519 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5521 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5522 mono_error_set_bad_image (error, image, "Could not verify type spec %08x.", type_spec);
5526 mono_metadata_decode_value (ptr, &ptr);
5528 type = mono_metadata_parse_type_internal (image, NULL, MONO_PARSE_TYPE, 0, TRUE, ptr, &ptr);
5530 if (mono_loader_get_last_error ())
5531 mono_error_set_from_loader_error (error);
5533 mono_error_set_bad_image (error, image, "Could not parse type spec %08x.", type_spec);
5537 type2 = mono_metadata_type_dup (image, type);
5538 mono_metadata_free_type (type);
5540 mono_image_lock (image);
5541 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5542 /* We might leak some data in the image mempool if found */
5544 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5547 mono_image_unlock (image);
5554 mono_image_strndup (MonoImage *image, const char *data, guint len)
5558 return g_strndup (data, len);
5559 res = mono_image_alloc (image, len + 1);
5560 memcpy (res, data, len);
5566 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5568 return mono_metadata_parse_marshal_spec_full (NULL, image, ptr);
5572 * If IMAGE is non-null, memory will be allocated from its mempool, otherwise it will be allocated using malloc.
5573 * PARENT_IMAGE is the image containing the marshal spec.
5576 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr)
5578 MonoMarshalSpec *res;
5580 const char *start = ptr;
5582 /* fixme: this is incomplete, but I cant find more infos in the specs */
5585 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5587 res = g_new0 (MonoMarshalSpec, 1);
5589 len = mono_metadata_decode_value (ptr, &ptr);
5590 res->native = *ptr++;
5592 if (res->native == MONO_NATIVE_LPARRAY) {
5593 res->data.array_data.param_num = -1;
5594 res->data.array_data.num_elem = -1;
5595 res->data.array_data.elem_mult = -1;
5597 if (ptr - start <= len)
5598 res->data.array_data.elem_type = *ptr++;
5599 if (ptr - start <= len)
5600 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5601 if (ptr - start <= len)
5602 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5603 if (ptr - start <= len) {
5605 * LAMESPEC: Older spec versions say this parameter comes before
5606 * num_elem. Never spec versions don't talk about elem_mult at
5607 * all, but csc still emits it, and it is used to distinguish
5608 * between param_num being 0, and param_num being omitted.
5609 * So if (param_num == 0) && (num_elem > 0), then
5610 * elem_mult == 0 -> the array size is num_elem
5611 * elem_mult == 1 -> the array size is @param_num + num_elem
5613 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5617 if (res->native == MONO_NATIVE_BYVALTSTR) {
5618 if (ptr - start <= len)
5619 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5622 if (res->native == MONO_NATIVE_BYVALARRAY) {
5623 if (ptr - start <= len)
5624 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5627 if (res->native == MONO_NATIVE_CUSTOM) {
5628 /* skip unused type guid */
5629 len = mono_metadata_decode_value (ptr, &ptr);
5631 /* skip unused native type name */
5632 len = mono_metadata_decode_value (ptr, &ptr);
5634 /* read custom marshaler type name */
5635 len = mono_metadata_decode_value (ptr, &ptr);
5636 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5638 /* read cookie string */
5639 len = mono_metadata_decode_value (ptr, &ptr);
5640 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5641 res->data.custom_data.image = parent_image;
5644 if (res->native == MONO_NATIVE_SAFEARRAY) {
5645 res->data.safearray_data.elem_type = 0;
5646 res->data.safearray_data.num_elem = 0;
5647 if (ptr - start <= len)
5648 res->data.safearray_data.elem_type = *ptr++;
5649 if (ptr - start <= len)
5650 res->data.safearray_data.num_elem = *ptr++;
5656 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5658 if (spec->native == MONO_NATIVE_CUSTOM) {
5659 g_free (spec->data.custom_data.custom_name);
5660 g_free (spec->data.custom_data.cookie);
5666 * mono_type_to_unmanaged:
5668 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5669 * describing the underlying native reprensetation of the type.
5671 * In addition the value pointed by
5672 * "conv" will contain the kind of marshalling required for this
5673 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5676 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5677 gboolean unicode, MonoMarshalConv *conv)
5679 MonoMarshalConv dummy_conv;
5685 *conv = MONO_MARSHAL_CONV_NONE;
5688 return MONO_NATIVE_UINT;
5692 case MONO_TYPE_BOOLEAN:
5694 switch (mspec->native) {
5695 case MONO_NATIVE_VARIANTBOOL:
5696 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5697 return MONO_NATIVE_VARIANTBOOL;
5698 case MONO_NATIVE_BOOLEAN:
5699 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5700 return MONO_NATIVE_BOOLEAN;
5701 case MONO_NATIVE_I1:
5702 case MONO_NATIVE_U1:
5703 return mspec->native;
5705 g_error ("cant marshal bool to native type %02x", mspec->native);
5708 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5709 return MONO_NATIVE_BOOLEAN;
5710 case MONO_TYPE_CHAR:
5712 switch (mspec->native) {
5713 case MONO_NATIVE_U2:
5714 case MONO_NATIVE_U1:
5715 return mspec->native;
5717 g_error ("cant marshal char to native type %02x", mspec->native);
5720 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5721 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5722 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5723 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5724 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5725 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5726 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5727 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5728 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5729 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5730 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5731 case MONO_TYPE_STRING:
5733 switch (mspec->native) {
5734 case MONO_NATIVE_BSTR:
5735 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5736 return MONO_NATIVE_BSTR;
5737 case MONO_NATIVE_LPSTR:
5738 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5739 return MONO_NATIVE_LPSTR;
5740 case MONO_NATIVE_LPWSTR:
5741 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5742 return MONO_NATIVE_LPWSTR;
5743 case MONO_NATIVE_LPTSTR:
5744 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5745 return MONO_NATIVE_LPTSTR;
5746 case MONO_NATIVE_ANSIBSTR:
5747 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5748 return MONO_NATIVE_ANSIBSTR;
5749 case MONO_NATIVE_TBSTR:
5750 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5751 return MONO_NATIVE_TBSTR;
5752 case MONO_NATIVE_BYVALTSTR:
5754 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5756 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5757 return MONO_NATIVE_BYVALTSTR;
5759 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);
5763 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5764 return MONO_NATIVE_LPWSTR;
5767 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5768 return MONO_NATIVE_LPSTR;
5770 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5771 case MONO_TYPE_VALUETYPE: /*FIXME*/
5772 if (type->data.klass->enumtype) {
5773 t = mono_class_enum_basetype (type->data.klass)->type;
5776 if (type->data.klass == mono_defaults.handleref_class){
5777 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5778 return MONO_NATIVE_INT;
5780 return MONO_NATIVE_STRUCT;
5781 case MONO_TYPE_SZARRAY:
5782 case MONO_TYPE_ARRAY:
5784 switch (mspec->native) {
5785 case MONO_NATIVE_BYVALARRAY:
5786 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5787 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5789 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5790 return MONO_NATIVE_BYVALARRAY;
5791 case MONO_NATIVE_SAFEARRAY:
5792 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5793 return MONO_NATIVE_SAFEARRAY;
5794 case MONO_NATIVE_LPARRAY:
5795 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5796 return MONO_NATIVE_LPARRAY;
5798 g_error ("cant marshal array as native type %02x", mspec->native);
5802 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5803 return MONO_NATIVE_LPARRAY;
5804 case MONO_TYPE_I: return MONO_NATIVE_INT;
5805 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5806 case MONO_TYPE_CLASS:
5807 case MONO_TYPE_OBJECT: {
5808 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5810 switch (mspec->native) {
5811 case MONO_NATIVE_STRUCT:
5812 return MONO_NATIVE_STRUCT;
5813 case MONO_NATIVE_CUSTOM:
5814 return MONO_NATIVE_CUSTOM;
5815 case MONO_NATIVE_INTERFACE:
5816 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5817 return MONO_NATIVE_INTERFACE;
5818 case MONO_NATIVE_IDISPATCH:
5819 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5820 return MONO_NATIVE_IDISPATCH;
5821 case MONO_NATIVE_IUNKNOWN:
5822 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5823 return MONO_NATIVE_IUNKNOWN;
5824 case MONO_NATIVE_FUNC:
5825 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5826 type->data.klass == mono_defaults.delegate_class ||
5827 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5828 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5829 return MONO_NATIVE_FUNC;
5833 g_error ("cant marshal object as native type %02x", mspec->native);
5836 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5837 type->data.klass == mono_defaults.delegate_class ||
5838 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5839 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5840 return MONO_NATIVE_FUNC;
5842 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5843 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5844 return MONO_NATIVE_INT;
5846 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5847 return MONO_NATIVE_STRUCT;
5849 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5850 case MONO_TYPE_GENERICINST:
5851 type = &type->data.generic_class->container_class->byval_arg;
5854 case MONO_TYPE_TYPEDBYREF:
5856 g_error ("type 0x%02x not handled in marshal", t);
5858 return MONO_NATIVE_MAX;
5862 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5865 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5871 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5872 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5874 /* FIXME: Index translation */
5876 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5879 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5883 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error)
5885 MonoMethod *result = NULL;
5886 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5888 mono_error_init (error);
5890 switch (tok & MONO_METHODDEFORREF_MASK) {
5891 case MONO_METHODDEFORREF_METHODDEF:
5892 result = mono_get_method_checked (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context, error);
5894 case MONO_METHODDEFORREF_METHODREF:
5895 result = mono_get_method_checked (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context, error);
5898 mono_error_set_bad_image (error, m, "Invalid MethodDefOfRef token %x", tok);
5905 * mono_class_get_overrides_full:
5907 * Return the method overrides belonging to class @type_token in @overrides, and
5908 * the number of overrides in @num_overrides.
5910 * Returns: TRUE on success, FALSE on failure.
5913 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5914 MonoGenericContext *generic_context)
5918 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5921 guint32 cols [MONO_METHODIMPL_SIZE];
5922 MonoMethod **result;
5933 loc.col_idx = MONO_METHODIMPL_CLASS;
5934 loc.idx = mono_metadata_token_index (type_token);
5936 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5942 * We may end up in the middle of the rows...
5945 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
5950 while (end < tdef->rows) {
5951 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
5957 result = g_new (MonoMethod*, num * 2);
5958 for (i = 0; i < num; ++i) {
5961 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
5962 mono_error_cleanup (&error); /* FIXME don't swallow the error */
5967 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
5968 method = method_from_method_def_or_ref (
5969 image, cols [MONO_METHODIMPL_DECLARATION], generic_context, &error);
5970 if (method == NULL) {
5971 mono_error_cleanup (&error); /* FIXME don't swallow the error */
5974 result [i * 2] = method;
5975 method = method_from_method_def_or_ref (
5976 image, cols [MONO_METHODIMPL_BODY], generic_context, &error);
5977 if (method == NULL) {
5978 mono_error_cleanup (&error); /* FIXME don't swallow the error */
5981 result [i * 2 + 1] = method;
5984 *overrides = result;
5986 *num_overrides = num;
5991 * mono_guid_to_string:
5993 * Converts a 16 byte Microsoft GUID to the standard string representation.
5996 mono_guid_to_string (const guint8 *guid)
5998 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
5999 guid[3], guid[2], guid[1], guid[0],
6003 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6007 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container, MonoError *error)
6009 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
6010 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
6011 guint32 i, token, found;
6012 MonoClass *klass, **res;
6013 GSList *cons = NULL, *tmp;
6014 MonoGenericContext *context = &container->context;
6016 mono_error_init (error);
6018 *constraints = NULL;
6020 for (i = 0; i < tdef->rows; ++i) {
6021 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
6022 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
6023 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
6024 klass = mono_class_get_and_inflate_typespec_checked (image, token, context, error);
6026 g_slist_free (cons);
6029 cons = g_slist_append (cons, klass);
6032 /* contiguous list finished */
6039 res = mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
6040 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
6041 res [i] = tmp->data;
6043 g_slist_free (cons);
6049 * mono_metadata_get_generic_param_row:
6052 * @token: TypeOrMethodDef token, owner for GenericParam
6053 * @owner: coded token, set on return
6055 * Returns: 1-based row-id in the GenericParam table whose
6056 * owner is @token. 0 if not found.
6059 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
6061 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6068 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
6069 *owner = MONO_TYPEORMETHOD_TYPE;
6070 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6071 *owner = MONO_TYPEORMETHOD_METHOD;
6073 g_error ("wrong token %x to get_generic_param_row", token);
6076 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
6079 loc.col_idx = MONO_GENERICPARAM_OWNER;
6082 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6085 /* Find the first entry by searching backwards */
6086 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
6089 return loc.result + 1;
6093 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
6096 return mono_metadata_get_generic_param_row (image, token, &owner);
6100 * Memory is allocated from IMAGE's mempool.
6103 mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
6104 MonoGenericContainer *container, MonoError *error)
6107 guint32 start_row, i, owner;
6108 mono_error_init (error);
6110 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
6112 for (i = 0; i < container->type_argc; i++) {
6113 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container, error)) {
6114 mono_loader_assert_no_error ();
6122 * mono_metadata_load_generic_params:
6124 * Load the type parameters from the type or method definition @token.
6126 * Use this method after parsing a type or method definition to figure out whether it's a generic
6127 * type / method. When parsing a method definition, @parent_container points to the generic container
6128 * of the current class, if any.
6130 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
6131 * creating the type.
6133 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
6135 * LOCKING: Acquires the loader lock
6138 MonoGenericContainer *
6139 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
6141 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6142 guint32 cols [MONO_GENERICPARAM_SIZE];
6143 guint32 i, owner = 0, n;
6144 MonoGenericContainer *container;
6145 MonoGenericParamFull *params;
6146 MonoGenericContext *context;
6148 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
6150 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6153 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
6154 container->image = image;
6157 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
6158 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
6159 params [n - 1].param.owner = container;
6160 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
6161 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
6162 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
6163 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
6164 if (params [n - 1].param.num != n - 1)
6165 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
6166 if (++i > tdef->rows)
6168 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6169 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
6171 container->type_argc = n;
6172 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
6173 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
6175 container->parent = parent_container;
6177 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6178 container->is_method = 1;
6180 g_assert (container->parent == NULL || container->is_method);
6182 context = &container->context;
6183 if (container->is_method) {
6184 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
6185 context->method_inst = mono_get_shared_generic_inst (container);
6187 context->class_inst = mono_get_shared_generic_inst (container);
6194 mono_get_shared_generic_inst (MonoGenericContainer *container)
6196 MonoType **type_argv;
6198 MonoGenericInst *nginst;
6201 type_argv = g_new0 (MonoType *, container->type_argc);
6202 helper = g_new0 (MonoType, container->type_argc);
6204 for (i = 0; i < container->type_argc; i++) {
6205 MonoType *t = &helper [i];
6207 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
6208 t->data.generic_param = mono_generic_container_get_param (container, i);
6213 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
6222 * mono_type_is_byref:
6223 * @type: the MonoType operated on
6225 * Returns: #TRUE if @type represents a type passed by reference,
6229 mono_type_is_byref (MonoType *type)
6235 * mono_type_get_type:
6236 * @type: the MonoType operated on
6238 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
6239 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
6242 mono_type_get_type (MonoType *type)
6248 * mono_type_get_signature:
6249 * @type: the MonoType operated on
6251 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
6253 * Returns: the MonoMethodSignature pointer that describes the signature
6254 * of the function pointer @type represents.
6256 MonoMethodSignature*
6257 mono_type_get_signature (MonoType *type)
6259 g_assert (type->type == MONO_TYPE_FNPTR);
6260 return type->data.method;
6264 * mono_type_get_class:
6265 * @type: the MonoType operated on
6267 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
6268 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
6271 * Returns: the MonoClass pointer that describes the class that @type represents.
6274 mono_type_get_class (MonoType *type)
6276 /* FIXME: review the runtime users before adding the assert here */
6277 return type->data.klass;
6281 * mono_type_get_array_type:
6282 * @type: the MonoType operated on
6284 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6286 * Returns: a MonoArrayType struct describing the array type that @type
6287 * represents. The info includes details such as rank, array element type
6288 * and the sizes and bounds of multidimensional arrays.
6291 mono_type_get_array_type (MonoType *type)
6293 return type->data.array;
6297 * mono_type_get_ptr_type:
6298 * @type: the MonoType operated on
6300 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6303 * Returns: the MonoType pointer that describes the type that @type
6304 * represents a pointer to.
6307 mono_type_get_ptr_type (MonoType *type)
6309 g_assert (type->type == MONO_TYPE_PTR);
6310 return type->data.type;
6314 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6316 /* FIXME: implement */
6321 * mono_type_is_struct:
6322 * @type: the MonoType operated on
6324 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6325 * or a basic type like System.Int32. #FALSE otherwise.
6328 mono_type_is_struct (MonoType *type)
6330 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6331 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6332 ((type->type == MONO_TYPE_GENERICINST) &&
6333 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6334 !type->data.generic_class->container_class->enumtype)));
6338 * mono_type_is_void:
6339 * @type: the MonoType operated on
6341 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6344 mono_type_is_void (MonoType *type)
6346 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6350 * mono_type_is_pointer:
6351 * @type: the MonoType operated on
6353 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6356 mono_type_is_pointer (MonoType *type)
6358 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6359 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6360 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6361 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6362 (type->type == MONO_TYPE_FNPTR)));
6366 * mono_type_is_reference:
6367 * @type: the MonoType operated on
6369 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6372 mono_type_is_reference (MonoType *type)
6374 return (type && (((type->type == MONO_TYPE_STRING) ||
6375 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6376 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6377 ((type->type == MONO_TYPE_GENERICINST) &&
6378 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6382 * mono_signature_get_return_type:
6383 * @sig: the method signature inspected
6385 * Returns: the return type of the method signature @sig
6388 mono_signature_get_return_type (MonoMethodSignature *sig)
6394 * mono_signature_get_params:
6395 * @sig: the method signature inspected
6396 * #iter: pointer to an iterator
6398 * Iterates over the parameters for the method signature @sig.
6399 * A void* pointer must be initualized to #NULL to start the iteration
6400 * and it's address is passed to this function repeteadly until it returns
6403 * Returns: the next parameter type of the method signature @sig,
6404 * #NULL when finished.
6407 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6413 /* start from the first */
6414 if (sig->param_count) {
6415 *iter = &sig->params [0];
6416 return sig->params [0];
6424 if (type < &sig->params [sig->param_count]) {
6432 * mono_signature_get_param_count:
6433 * @sig: the method signature inspected
6435 * Returns: the number of parameters in the method signature @sig.
6438 mono_signature_get_param_count (MonoMethodSignature *sig)
6440 return sig->param_count;
6444 * mono_signature_get_call_conv:
6445 * @sig: the method signature inspected
6447 * Returns: the call convention of the method signature @sig.
6450 mono_signature_get_call_conv (MonoMethodSignature *sig)
6452 return sig->call_convention;
6456 * mono_signature_vararg_start:
6457 * @sig: the method signature inspected
6459 * Returns: the number of the first vararg parameter in the
6460 * method signature @sig. -1 if this is not a vararg signature.
6463 mono_signature_vararg_start (MonoMethodSignature *sig)
6465 return sig->sentinelpos;
6469 * mono_signature_is_instance:
6470 * @sig: the method signature inspected
6472 * Returns: #TRUE if this the method signature @sig has an implicit
6473 * first instance argument. #FALSE otherwise.
6476 mono_signature_is_instance (MonoMethodSignature *sig)
6478 return sig->hasthis;
6482 * mono_signature_param_is_out
6483 * @sig: the method signature inspected
6484 * @param_num: the 0-based index of the inspected parameter
6486 * Returns: #TRUE if the parameter is an out parameter, #FALSE
6490 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6492 g_assert (param_num >= 0 && param_num < sig->param_count);
6493 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6497 * mono_signature_explicit_this:
6498 * @sig: the method signature inspected
6500 * Returns: #TRUE if this the method signature @sig has an explicit
6501 * instance argument. #FALSE otherwise.
6504 mono_signature_explicit_this (MonoMethodSignature *sig)
6506 return sig->explicit_this;
6509 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6511 mono_aligned_addr_hash (gconstpointer ptr)
6513 return GPOINTER_TO_UINT (ptr) >> 3;
6517 * If @field belongs to an inflated generic class, return the corresponding field of the
6518 * generic type definition class.
6521 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6526 if (!field->parent->generic_class)
6529 gtd = field->parent->generic_class->container_class;
6530 offset = field - field->parent->fields;
6531 return gtd->fields + offset;
6535 * If @event belongs to an inflated generic class, return the corresponding event of the
6536 * generic type definition class.
6539 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6544 if (!event->parent->generic_class)
6547 gtd = event->parent->generic_class->container_class;
6548 offset = event - event->parent->ext->events;
6549 return gtd->ext->events + offset;
6553 * If @property belongs to an inflated generic class, return the corresponding property of the
6554 * generic type definition class.
6557 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6562 if (!property->parent->generic_class)
6565 gtd = property->parent->generic_class->container_class;
6566 offset = property - property->parent->ext->properties;
6567 return gtd->ext->properties + offset;
6571 mono_method_get_wrapper_cache (MonoMethod *method)
6573 if (method->is_inflated) {
6574 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
6575 return &imethod->owner->wrapper_caches;
6577 return &method->klass->image->wrapper_caches;