2 * metadata.c: Routines for accessing the metadata
5 * Miguel de Icaza (miguel@ximian.com)
6 * Paolo Molaro (lupus@ximian.com)
8 * (C) 2001-2002 Ximian, Inc.
17 #include "tabledefs.h"
18 #include "mono-endian.h"
20 #include "tokentype.h"
21 #include "metadata-internals.h"
22 #include "class-internals.h"
25 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
26 const char *ptr, const char **rptr);
28 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
29 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
30 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
31 gboolean signature_only);
34 * This enumeration is used to describe the data types in the metadata
45 /* Index into Blob heap */
48 /* Index into String heap */
54 /* Pointer into a table */
57 /* HasConstant:Parent pointer (Param, Field or Property) */
60 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
63 /* CustomAttributeType encoded index */
66 /* HasDeclSecurity index: TypeDef Method or Assembly */
69 /* Implementation coded index: File, Export AssemblyRef */
72 /* HasFieldMarshal coded index: Field or Param table */
75 /* MemberForwardedIndex: Field or Method */
78 /* TypeDefOrRef coded index: typedef, typeref, typespec */
81 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
84 /* MethodDefOrRef coded index: Method or Member Ref table */
87 /* HasSemantic coded index: Event or Property */
90 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
94 const static unsigned char AssemblySchema [] = {
95 MONO_MT_UINT32, /* "HashId" }, */
96 MONO_MT_UINT16, /* "Major" }, */
97 MONO_MT_UINT16, /* "Minor" }, */
98 MONO_MT_UINT16, /* "BuildNumber" }, */
99 MONO_MT_UINT16, /* "RevisionNumber" }, */
100 MONO_MT_UINT32, /* "Flags" }, */
101 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
102 MONO_MT_STRING_IDX, /* "Name" }, */
103 MONO_MT_STRING_IDX, /* "Culture" }, */
107 const static unsigned char AssemblyOSSchema [] = {
108 MONO_MT_UINT32, /* "OSPlatformID" }, */
109 MONO_MT_UINT32, /* "OSMajor" }, */
110 MONO_MT_UINT32, /* "OSMinor" }, */
114 const static unsigned char AssemblyProcessorSchema [] = {
115 MONO_MT_UINT32, /* "Processor" }, */
119 const static unsigned char AssemblyRefSchema [] = {
120 MONO_MT_UINT16, /* "Major" }, */
121 MONO_MT_UINT16, /* "Minor" }, */
122 MONO_MT_UINT16, /* "Build" }, */
123 MONO_MT_UINT16, /* "Revision" }, */
124 MONO_MT_UINT32, /* "Flags" }, */
125 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
126 MONO_MT_STRING_IDX, /* "Name" }, */
127 MONO_MT_STRING_IDX, /* "Culture" }, */
128 MONO_MT_BLOB_IDX, /* "HashValue" }, */
132 const static unsigned char AssemblyRefOSSchema [] = {
133 MONO_MT_UINT32, /* "OSPlatformID" }, */
134 MONO_MT_UINT32, /* "OSMajorVersion" }, */
135 MONO_MT_UINT32, /* "OSMinorVersion" }, */
136 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
140 const static unsigned char AssemblyRefProcessorSchema [] = {
141 MONO_MT_UINT32, /* "Processor" }, */
142 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
146 const static unsigned char ClassLayoutSchema [] = {
147 MONO_MT_UINT16, /* "PackingSize" }, */
148 MONO_MT_UINT32, /* "ClassSize" }, */
149 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
153 const static unsigned char ConstantSchema [] = {
154 MONO_MT_UINT8, /* "Type" }, */
155 MONO_MT_UINT8, /* "PaddingZero" }, */
156 MONO_MT_CONST_IDX, /* "Parent" }, */
157 MONO_MT_BLOB_IDX, /* "Value" }, */
161 const static unsigned char CustomAttributeSchema [] = {
162 MONO_MT_HASCAT_IDX, /* "Parent" }, */
163 MONO_MT_CAT_IDX, /* "Type" }, */
164 MONO_MT_BLOB_IDX, /* "Value" }, */
168 const static unsigned char DeclSecuritySchema [] = {
169 MONO_MT_UINT16, /* "Action" }, */
170 MONO_MT_HASDEC_IDX, /* "Parent" }, */
171 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
175 const static unsigned char EventMapSchema [] = {
176 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
177 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
181 const static unsigned char EventSchema [] = {
182 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
183 MONO_MT_STRING_IDX, /* "Name" }, */
184 MONO_MT_TABLE_IDX, /* "EventType" }, TypeDef or TypeRef */
188 const static unsigned char ExportedTypeSchema [] = {
189 MONO_MT_UINT32, /* "Flags" }, */
190 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
191 MONO_MT_STRING_IDX, /* "TypeName" }, */
192 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
193 MONO_MT_IMPL_IDX, /* "Implementation" }, */
197 const static unsigned char FieldSchema [] = {
198 MONO_MT_UINT16, /* "Flags" }, */
199 MONO_MT_STRING_IDX, /* "Name" }, */
200 MONO_MT_BLOB_IDX, /* "Signature" }, */
203 const static unsigned char FieldLayoutSchema [] = {
204 MONO_MT_UINT32, /* "Offset" }, */
205 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
209 const static unsigned char FieldMarshalSchema [] = {
210 MONO_MT_HFM_IDX, /* "Parent" }, */
211 MONO_MT_BLOB_IDX, /* "NativeType" }, */
214 const static unsigned char FieldRVASchema [] = {
215 MONO_MT_UINT32, /* "RVA" }, */
216 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
220 const static unsigned char FileSchema [] = {
221 MONO_MT_UINT32, /* "Flags" }, */
222 MONO_MT_STRING_IDX, /* "Name" }, */
223 MONO_MT_BLOB_IDX, /* "Value" }, */
227 const static unsigned char ImplMapSchema [] = {
228 MONO_MT_UINT16, /* "MappingFlag" }, */
229 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
230 MONO_MT_STRING_IDX, /* "ImportName" }, */
231 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
235 const static unsigned char InterfaceImplSchema [] = {
236 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
237 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
241 const static unsigned char ManifestResourceSchema [] = {
242 MONO_MT_UINT32, /* "Offset" }, */
243 MONO_MT_UINT32, /* "Flags" }, */
244 MONO_MT_STRING_IDX, /* "Name" }, */
245 MONO_MT_IMPL_IDX, /* "Implementation" }, */
249 const static unsigned char MemberRefSchema [] = {
250 MONO_MT_MRP_IDX, /* "Class" }, */
251 MONO_MT_STRING_IDX, /* "Name" }, */
252 MONO_MT_BLOB_IDX, /* "Signature" }, */
256 const static unsigned char MethodSchema [] = {
257 MONO_MT_UINT32, /* "RVA" }, */
258 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
259 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
260 MONO_MT_STRING_IDX, /* "Name" }, */
261 MONO_MT_BLOB_IDX, /* "Signature" }, */
262 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
266 const static unsigned char MethodImplSchema [] = {
267 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
268 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
269 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
273 const static unsigned char MethodSemanticsSchema [] = {
274 MONO_MT_UINT16, /* "MethodSemantic" }, */
275 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
276 MONO_MT_HS_IDX, /* "Association" }, */
280 const static unsigned char ModuleSchema [] = {
281 MONO_MT_UINT16, /* "Generation" }, */
282 MONO_MT_STRING_IDX, /* "Name" }, */
283 MONO_MT_GUID_IDX, /* "MVID" }, */
284 MONO_MT_GUID_IDX, /* "EncID" }, */
285 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
289 const static unsigned char ModuleRefSchema [] = {
290 MONO_MT_STRING_IDX, /* "Name" }, */
294 const static unsigned char NestedClassSchema [] = {
295 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
296 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
300 const static unsigned char ParamSchema [] = {
301 MONO_MT_UINT16, /* "Flags" }, */
302 MONO_MT_UINT16, /* "Sequence" }, */
303 MONO_MT_STRING_IDX, /* "Name" }, */
307 const static unsigned char PropertySchema [] = {
308 MONO_MT_UINT16, /* "Flags" }, */
309 MONO_MT_STRING_IDX, /* "Name" }, */
310 MONO_MT_BLOB_IDX, /* "Type" }, */
314 const static unsigned char PropertyMapSchema [] = {
315 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
316 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
320 const static unsigned char StandaloneSigSchema [] = {
321 MONO_MT_BLOB_IDX, /* "Signature" }, */
325 const static unsigned char TypeDefSchema [] = {
326 MONO_MT_UINT32, /* "Flags" }, */
327 MONO_MT_STRING_IDX, /* "Name" }, */
328 MONO_MT_STRING_IDX, /* "Namespace" }, */
329 MONO_MT_TDOR_IDX, /* "Extends" }, */
330 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
331 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
335 const static unsigned char TypeRefSchema [] = {
336 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
337 MONO_MT_STRING_IDX, /* "Name" }, */
338 MONO_MT_STRING_IDX, /* "Namespace" }, */
342 const static unsigned char TypeSpecSchema [] = {
343 MONO_MT_BLOB_IDX, /* "Signature" }, */
347 const static unsigned char GenericParamSchema [] = {
348 MONO_MT_UINT16, /* "Number" }, */
349 MONO_MT_UINT16, /* "Flags" }, */
350 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
351 MONO_MT_STRING_IDX, /* "Name" }, */
356 const static unsigned char MethodSpecSchema [] = {
357 MONO_MT_MDOR_IDX, /* "Method" }, */
358 MONO_MT_BLOB_IDX, /* "Signature" }, */
362 const static unsigned char GenericParamConstraintSchema [] = {
363 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
364 MONO_MT_TDOR_IDX, /* "Constraint" }, */
368 const static struct {
369 const unsigned char *description;
372 /* 0 */ { ModuleSchema, "Module" },
373 /* 1 */ { TypeRefSchema, "TypeRef" },
374 /* 2 */ { TypeDefSchema, "TypeDef" },
375 /* 3 */ { NULL, NULL },
376 /* 4 */ { FieldSchema, "Field" },
377 /* 5 */ { NULL, NULL },
378 /* 6 */ { MethodSchema, "Method" },
379 /* 7 */ { NULL, NULL },
380 /* 8 */ { ParamSchema, "Param" },
381 /* 9 */ { InterfaceImplSchema, "InterfaceImpl" },
382 /* A */ { MemberRefSchema, "MemberRef" },
383 /* B */ { ConstantSchema, "Constant" },
384 /* C */ { CustomAttributeSchema, "CustomAttribute" },
385 /* D */ { FieldMarshalSchema, "FieldMarshal" },
386 /* E */ { DeclSecuritySchema, "DeclSecurity" },
387 /* F */ { ClassLayoutSchema, "ClassLayout" },
388 /* 10 */ { FieldLayoutSchema, "FieldLayout" },
389 /* 11 */ { StandaloneSigSchema, "StandaloneSig" },
390 /* 12 */ { EventMapSchema, "EventMap" },
391 /* 13 */ { NULL, NULL },
392 /* 14 */ { EventSchema, "Event" },
393 /* 15 */ { PropertyMapSchema, "PropertyMap" },
394 /* 16 */ { NULL, NULL },
395 /* 17 */ { PropertySchema, "PropertyTable" },
396 /* 18 */ { MethodSemanticsSchema, "MethodSemantics" },
397 /* 19 */ { MethodImplSchema, "MethodImpl" },
398 /* 1A */ { ModuleRefSchema, "ModuleRef" },
399 /* 1B */ { TypeSpecSchema, "TypeSpec" },
400 /* 1C */ { ImplMapSchema, "ImplMap" },
401 /* 1D */ { FieldRVASchema, "FieldRVA" },
402 /* 1E */ { NULL, NULL },
403 /* 1F */ { NULL, NULL },
404 /* 20 */ { AssemblySchema, "Assembly" },
405 /* 21 */ { AssemblyProcessorSchema, "AssemblyProcessor" },
406 /* 22 */ { AssemblyOSSchema, "AssemblyOS" },
407 /* 23 */ { AssemblyRefSchema, "AssemblyRef" },
408 /* 24 */ { AssemblyRefProcessorSchema, "AssemblyRefProcessor" },
409 /* 25 */ { AssemblyRefOSSchema, "AssemblyRefOS" },
410 /* 26 */ { FileSchema, "File" },
411 /* 27 */ { ExportedTypeSchema, "ExportedType" },
412 /* 28 */ { ManifestResourceSchema, "ManifestResource" },
413 /* 29 */ { NestedClassSchema, "NestedClass" },
414 /* 2A */ { GenericParamSchema, "GenericParam" },
415 /* 2B */ { MethodSpecSchema, "MethodSpec" },
416 /* 2C */ { GenericParamConstraintSchema, "GenericParamConstraint" },
420 * mono_meta_table_name:
421 * @table: table index
423 * Returns: the name for the @table index
426 mono_meta_table_name (int table)
428 if ((table < 0) || (table > 0x2c))
431 return tables [table].name;
434 /* The guy who wrote the spec for this should not be allowed near a
437 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
438 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
439 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
440 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
441 inverse of this mapping.
444 #define rtsize(s,b) (((s) < (1 << (b)) ? 2 : 4))
445 #define idx_size(tableidx) (meta->tables [(tableidx)].rows < 65536 ? 2 : 4)
447 /* Reference: Partition II - 23.2.6 */
449 * mono_metadata_compute_size:
450 * @meta: metadata context
451 * @tableindex: metadata table number
452 * @result_bitfield: pointer to guint32 where to store additional info
454 * mono_metadata_compute_size() computes the lenght in bytes of a single
455 * row in a metadata table. The size of each column is encoded in the
456 * @result_bitfield return value along with the number of columns in the table.
457 * the resulting bitfield should be handed to the mono_metadata_table_size()
458 * and mono_metadata_table_count() macros.
459 * This is a Mono runtime internal only function.
462 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
464 guint32 bitfield = 0;
465 int size = 0, field_size = 0;
468 const unsigned char *description = tables [tableindex].description;
470 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
473 field_size = 4; break;
476 field_size = 2; break;
479 field_size = 1; break;
481 case MONO_MT_BLOB_IDX:
482 field_size = meta->idx_blob_wide ? 4 : 2; break;
484 case MONO_MT_STRING_IDX:
485 field_size = meta->idx_string_wide ? 4 : 2; break;
487 case MONO_MT_GUID_IDX:
488 field_size = meta->idx_guid_wide ? 4 : 2; break;
490 case MONO_MT_TABLE_IDX:
491 /* Uhm, a table index can point to other tables besides the current one
492 * so, it's not correct to use the rowcount of the current table to
493 * get the size for this column - lupus
495 switch (tableindex) {
496 case MONO_TABLE_ASSEMBLYREFOS:
498 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
499 case MONO_TABLE_ASSEMBLYPROCESSOR:
501 field_size = idx_size (MONO_TABLE_ASSEMBLYREF); break;
502 case MONO_TABLE_CLASSLAYOUT:
504 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
505 case MONO_TABLE_EVENTMAP:
506 g_assert (i == 0 || i == 1);
507 field_size = i ? idx_size (MONO_TABLE_EVENT):
508 idx_size(MONO_TABLE_TYPEDEF);
510 case MONO_TABLE_EVENT:
512 field_size = MAX (idx_size (MONO_TABLE_TYPEDEF), idx_size(MONO_TABLE_TYPEREF));
513 field_size = MAX (field_size, idx_size(MONO_TABLE_TYPESPEC));
515 case MONO_TABLE_EXPORTEDTYPE:
517 /* the index is in another metadata file, so it must be 4 */
518 field_size = 4; break;
519 case MONO_TABLE_FIELDLAYOUT:
521 field_size = idx_size (MONO_TABLE_FIELD); break;
522 case MONO_TABLE_FIELDRVA:
524 field_size = idx_size (MONO_TABLE_FIELD); break;
525 case MONO_TABLE_IMPLMAP:
527 field_size = idx_size (MONO_TABLE_MODULEREF); break;
528 case MONO_TABLE_INTERFACEIMPL:
530 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
531 case MONO_TABLE_METHOD:
533 field_size = idx_size (MONO_TABLE_PARAM); break;
534 case MONO_TABLE_METHODIMPL:
536 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
537 case MONO_TABLE_METHODSEMANTICS:
539 field_size = idx_size (MONO_TABLE_METHOD); break;
540 case MONO_TABLE_NESTEDCLASS:
541 g_assert (i == 0 || i == 1);
542 field_size = idx_size (MONO_TABLE_TYPEDEF); break;
543 case MONO_TABLE_PROPERTYMAP:
544 g_assert (i == 0 || i == 1);
545 field_size = i ? idx_size (MONO_TABLE_PROPERTY):
546 idx_size(MONO_TABLE_TYPEDEF);
548 case MONO_TABLE_TYPEDEF:
549 g_assert (i == 4 || i == 5);
550 field_size = i == 4 ? idx_size (MONO_TABLE_FIELD):
551 idx_size(MONO_TABLE_METHOD);
553 case MONO_TABLE_GENERICPARAM:
554 g_assert (i == 2 || i == 4 || i == 5);
556 field_size = MAX (idx_size (MONO_TABLE_METHOD), idx_size (MONO_TABLE_TYPEDEF));
558 field_size = idx_size (MONO_TABLE_TYPEDEF);
560 field_size = idx_size (MONO_TABLE_TYPEDEF);
563 case MONO_TABLE_GENERICPARAMCONSTRAINT:
565 field_size = idx_size (MONO_TABLE_GENERICPARAM);
569 g_assert_not_reached ();
574 * HasConstant: ParamDef, FieldDef, Property
576 case MONO_MT_CONST_IDX:
577 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
578 meta->tables [MONO_TABLE_FIELD].rows);
579 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
581 /* 2 bits to encode tag */
582 field_size = rtsize (n, 16-2);
586 * HasCustomAttribute: points to any table but
589 case MONO_MT_HASCAT_IDX:
591 * We believe that since the signature and
592 * permission are indexing the Blob heap,
593 * we should consider the blob size first
595 /* I'm not a believer - lupus
596 if (meta->idx_blob_wide){
601 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
602 meta->tables [MONO_TABLE_FIELD].rows);
603 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
604 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
605 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
606 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
607 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
608 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
609 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
610 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
611 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
612 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
613 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
614 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
615 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
616 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
617 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
618 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
619 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
621 /* 5 bits to encode */
622 field_size = rtsize (n, 16-5);
626 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
627 * MemberRef and String.
629 case MONO_MT_CAT_IDX:
630 /* String is a heap, if it is wide, we know the size */
632 if (meta->idx_string_wide){
637 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
638 meta->tables [MONO_TABLE_TYPEDEF].rows);
639 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
640 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
642 /* 3 bits to encode */
643 field_size = rtsize (n, 16-3);
647 * HasDeclSecurity: Typedef, MethodDef, Assembly
649 case MONO_MT_HASDEC_IDX:
650 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
651 meta->tables [MONO_TABLE_METHOD].rows);
652 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
654 /* 2 bits to encode */
655 field_size = rtsize (n, 16-2);
659 * Implementation: File, AssemblyRef, ExportedType
661 case MONO_MT_IMPL_IDX:
662 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
663 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
664 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
666 /* 2 bits to encode tag */
667 field_size = rtsize (n, 16-2);
671 * HasFieldMarshall: FieldDef, ParamDef
673 case MONO_MT_HFM_IDX:
674 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
675 meta->tables [MONO_TABLE_PARAM].rows);
677 /* 1 bit used to encode tag */
678 field_size = rtsize (n, 16-1);
682 * MemberForwarded: FieldDef, MethodDef
685 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
686 meta->tables [MONO_TABLE_METHOD].rows);
688 /* 1 bit used to encode tag */
689 field_size = rtsize (n, 16-1);
693 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
695 * It is TypeDef, _TypeRef_, TypeSpec, instead.
697 case MONO_MT_TDOR_IDX:
698 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
699 meta->tables [MONO_TABLE_TYPEREF].rows);
700 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
702 /* 2 bits to encode */
703 field_size = rtsize (n, 16-2);
707 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
709 case MONO_MT_MRP_IDX:
710 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
711 meta->tables [MONO_TABLE_TYPEREF].rows);
712 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
713 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
714 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
715 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
717 /* 3 bits to encode */
718 field_size = rtsize (n, 16 - 3);
722 * MethodDefOrRef: MethodDef, MemberRef
724 case MONO_MT_MDOR_IDX:
725 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
726 meta->tables [MONO_TABLE_MEMBERREF].rows);
728 /* 1 bit used to encode tag */
729 field_size = rtsize (n, 16-1);
733 * HasSemantics: Property, Event
736 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
737 meta->tables [MONO_TABLE_EVENT].rows);
739 /* 1 bit used to encode tag */
740 field_size = rtsize (n, 16-1);
744 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
747 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
748 meta->tables [MONO_TABLE_MODULEREF].rows);
749 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
750 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
752 /* 2 bits used to encode tag (ECMA spec claims 3) */
753 field_size = rtsize (n, 16 - 2);
758 * encode field size as follows (we just need to
765 bitfield |= (field_size-1) << shift;
768 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
771 *result_bitfield = (i << 24) | bitfield;
776 * mono_metadata_compute_table_bases:
777 * @meta: metadata context to compute table values
779 * Computes the table bases for the metadata structure.
780 * This is an internal function used by the image loader code.
783 mono_metadata_compute_table_bases (MonoImage *meta)
786 const char *base = meta->tables_base;
788 for (i = 0; i < MONO_TABLE_NUM; i++) {
789 MonoTableInfo *table = &meta->tables [i];
790 if (table->rows == 0)
793 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
795 base += table->rows * table->row_size;
800 * mono_metadata_locate:
801 * @meta: metadata context
802 * @table: table code.
803 * @idx: index of element to retrieve from @table.
805 * Returns: a pointer to the @idx element in the metadata table
806 * whose code is @table.
809 mono_metadata_locate (MonoImage *meta, int table, int idx)
811 /* idx == 0 refers always to NULL */
812 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, "");
814 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
818 * mono_metadata_locate_token:
819 * @meta: metadata context
820 * @token: metadata token
822 * Returns: a pointer to the data in the metadata represented by the
826 mono_metadata_locate_token (MonoImage *meta, guint32 token)
828 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
832 * mono_metadata_string_heap:
833 * @meta: metadata context
834 * @index: index into the string heap.
836 * Returns: an in-memory pointer to the @index in the string heap.
839 mono_metadata_string_heap (MonoImage *meta, guint32 index)
841 g_return_val_if_fail (index < meta->heap_strings.size, "");
842 return meta->heap_strings.data + index;
846 * mono_metadata_user_string:
847 * @meta: metadata context
848 * @index: index into the user string heap.
850 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
853 mono_metadata_user_string (MonoImage *meta, guint32 index)
855 g_return_val_if_fail (index < meta->heap_us.size, "");
856 return meta->heap_us.data + index;
860 * mono_metadata_blob_heap:
861 * @meta: metadata context
862 * @index: index into the blob.
864 * Returns: an in-memory pointer to the @index in the Blob heap.
867 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
869 g_return_val_if_fail (index < meta->heap_blob.size, "");
870 return meta->heap_blob.data + index;
874 * mono_metadata_guid_heap:
875 * @meta: metadata context
876 * @index: index into the guid heap.
878 * Returns: an in-memory pointer to the @index in the guid heap.
881 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
884 index *= 16; /* adjust for guid size and 1-based index */
885 g_return_val_if_fail (index < meta->heap_guid.size, "");
886 return meta->heap_guid.data + index;
890 dword_align (const char *ptr)
892 #if SIZEOF_VOID_P == 8
893 return (const char *) (((guint64) (ptr + 3)) & ~3);
895 return (const char *) (((guint32) (ptr + 3)) & ~3);
900 * mono_metadata_decode_row:
901 * @t: table to extract information from.
902 * @idx: index in table.
903 * @res: array of @res_size cols to store the results in
905 * This decompresses the metadata element @idx in table @t
906 * into the guint32 @res array that has res_size elements
909 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
911 guint32 bitfield = t->size_bitfield;
912 int i, count = mono_metadata_table_count (bitfield);
913 const char *data = t->base + idx * t->row_size;
915 g_assert (res_size == count);
917 for (i = 0; i < count; i++) {
918 int n = mono_metadata_table_size (bitfield, i);
922 res [i] = *data; break;
924 res [i] = read16 (data); break;
926 res [i] = read32 (data); break;
928 g_assert_not_reached ();
935 * mono_metadata_decode_row_col:
936 * @t: table to extract information from.
937 * @idx: index for row in table.
938 * @col: column in the row.
940 * This function returns the value of column @col from the @idx
941 * row in the table @t.
944 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
946 guint32 bitfield = t->size_bitfield;
948 register const char *data = t->base + idx * t->row_size;
951 g_assert (col < mono_metadata_table_count (bitfield));
953 n = mono_metadata_table_size (bitfield, 0);
954 for (i = 0; i < col; ++i) {
956 n = mono_metadata_table_size (bitfield, i + 1);
962 return read16 (data);
964 return read32 (data);
966 g_assert_not_reached ();
971 * mono_metadata_decode_blob_size:
972 * @ptr: pointer to a blob object
973 * @rptr: the new position of the pointer
975 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
977 * Returns: the size of the blob object
980 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
982 const unsigned char *ptr = (const unsigned char *)xptr;
985 if ((*ptr & 0x80) == 0){
986 size = ptr [0] & 0x7f;
988 } else if ((*ptr & 0x40) == 0){
989 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
992 size = ((ptr [0] & 0x1f) << 24) +
1004 * mono_metadata_decode_value:
1005 * @ptr: pointer to decode from
1006 * @rptr: the new position of the pointer
1008 * This routine decompresses 32-bit values as specified in the "Blob and
1009 * Signature" section (22.2)
1011 * Returns: the decoded value
1014 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1016 const unsigned char *ptr = (const unsigned char *) _ptr;
1017 unsigned char b = *ptr;
1020 if ((b & 0x80) == 0){
1023 } else if ((b & 0x40) == 0){
1024 len = ((b & 0x3f) << 8 | ptr [1]);
1027 len = ((b & 0x1f) << 24) |
1040 * mono_metadata_decode_signed_value:
1041 * @ptr: pointer to decode from
1042 * @rptr: the new position of the pointer
1044 * This routine decompresses 32-bit signed values
1045 * (not specified in the spec)
1047 * Returns: the decoded value
1050 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1052 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1053 gint32 ival = uval >> 1;
1056 /* ival is a truncated 2's complement negative number. */
1058 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1061 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1062 return ival - 0x2000;
1063 if (ival < 0x10000000)
1064 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1065 return ival - 0x10000000;
1066 g_assert (ival < 0x20000000);
1067 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1068 return ival - 0x20000000;
1072 * mono_metadata_parse_typedef_or_ref:
1073 * @m: a metadata context.
1074 * @ptr: a pointer to an encoded TypedefOrRef in @m
1075 * @rptr: pointer updated to match the end of the decoded stream
1077 * Returns: a token valid in the @m metadata decoded from
1078 * the compressed representation.
1081 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1084 token = mono_metadata_decode_value (ptr, &ptr);
1087 return mono_metadata_token_from_dor (token);
1091 * mono_metadata_parse_custom_mod:
1092 * @m: a metadata context.
1093 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1094 * @ptr: a pointer to (possibly) the start of a custom modifier list
1095 * @rptr: pointer updated to match the end of the decoded stream
1097 * Checks if @ptr points to a type custom modifier compressed representation.
1099 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1102 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1104 MonoCustomMod local;
1105 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1108 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1109 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1116 * mono_metadata_parse_array:
1117 * @m: a metadata context.
1118 * @ptr: a pointer to an encoded array description.
1119 * @rptr: pointer updated to match the end of the decoded stream
1121 * Decodes the compressed array description found in the metadata @m at @ptr.
1123 * Returns: a #MonoArrayType structure describing the array type
1127 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1128 const char *ptr, const char **rptr)
1131 MonoArrayType *array = g_new0 (MonoArrayType, 1);
1134 etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1137 array->eklass = mono_class_from_mono_type (etype);
1138 array->rank = mono_metadata_decode_value (ptr, &ptr);
1140 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1141 if (array->numsizes)
1142 array->sizes = g_new0 (int, array->numsizes);
1143 for (i = 0; i < array->numsizes; ++i)
1144 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1146 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1147 if (array->numlobounds)
1148 array->lobounds = g_new0 (int, array->numlobounds);
1149 for (i = 0; i < array->numlobounds; ++i)
1150 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1158 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1160 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1164 * mono_metadata_free_array:
1165 * @array: array description
1167 * Frees the array description returned from mono_metadata_parse_array().
1170 mono_metadata_free_array (MonoArrayType *array)
1172 g_free (array->sizes);
1173 g_free (array->lobounds);
1178 * need to add common field and param attributes combinations:
1181 * public static literal
1184 * private static literal
1186 static const MonoType
1188 /* data, attrs, type, nmods, byref, pinned */
1189 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1190 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1191 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1192 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1193 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1194 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1195 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1196 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1197 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1198 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1199 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1200 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1201 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1202 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1203 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1204 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1205 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1206 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1207 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1208 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1209 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1210 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1211 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1212 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1213 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1214 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1215 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1216 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1217 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1218 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1219 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1220 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1221 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1222 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1225 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1227 static GHashTable *type_cache = NULL;
1228 static GHashTable *generic_inst_cache = NULL;
1229 static GHashTable *generic_class_cache = NULL;
1230 static int next_generic_inst_id = 0;
1232 static guint mono_generic_class_hash (gconstpointer data);
1235 * MonoTypes with modifies are never cached, so we never check or use that field.
1238 mono_type_hash (gconstpointer data)
1240 const MonoType *type = (const MonoType *) data;
1241 if (type->type == MONO_TYPE_GENERICINST)
1242 return mono_generic_class_hash (type->data.generic_class);
1244 return type->type | (type->byref << 8) | (type->attrs << 9);
1248 mono_type_equal (gconstpointer ka, gconstpointer kb)
1250 const MonoType *a = (const MonoType *) ka;
1251 const MonoType *b = (const MonoType *) kb;
1253 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1255 /* need other checks */
1260 mono_generic_inst_hash (gconstpointer data)
1262 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1266 for (i = 0; i < ginst->type_argc; ++i) {
1268 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1271 return hash ^ (ginst->is_open << 8);
1275 mono_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1277 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1278 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1281 if ((a->is_open != b->is_open) || (a->type_argc != b->type_argc) || (a->is_reference != b->is_reference))
1283 for (i = 0; i < a->type_argc; ++i) {
1284 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], FALSE))
1291 mono_generic_class_hash (gconstpointer data)
1293 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1294 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1297 hash += mono_generic_inst_hash (gclass->inst);
1303 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1305 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1306 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1308 return _mono_metadata_generic_class_equal (a, b, FALSE);
1312 * mono_metadata_init:
1314 * Initialize the global variables of this module.
1315 * This is a Mono runtime internal function.
1318 mono_metadata_init (void)
1322 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1323 generic_inst_cache = g_hash_table_new (mono_generic_inst_hash, mono_generic_inst_equal);
1324 generic_class_cache = g_hash_table_new (mono_generic_class_hash, mono_generic_class_equal);
1326 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1327 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1331 * mono_metadata_parse_type:
1332 * @m: metadata context
1333 * @mode: king of type that may be found at @ptr
1334 * @opt_attrs: optional attributes to store in the returned type
1335 * @ptr: pointer to the type representation
1336 * @rptr: pointer updated to match the end of the decoded stream
1338 * Decode a compressed type description found at @ptr in @m.
1339 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1340 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1341 * This function can be used to decode type descriptions in method signatures,
1342 * field signatures, locals signatures etc.
1344 * To parse a generic type, `generic_container' points to the current class'es
1345 * (the `generic_container' field in the MonoClass) or the current generic method's
1346 * (the `generic_container' field in the MonoMethodNormal) generic container.
1347 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1348 * this MonoGenericContainer.
1349 * This is a Mono runtime internal function.
1351 * Returns: a #MonoType structure representing the decoded type.
1354 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container, MonoParseTypeMode mode,
1355 short opt_attrs, const char *ptr, const char **rptr)
1357 MonoType *type, *cached;
1359 gboolean byref = FALSE;
1360 gboolean pinned = FALSE;
1361 const char *tmp_ptr;
1366 * According to the spec, custom modifiers should come before the byref
1367 * flag, but the IL produced by ilasm from the following signature:
1368 * object modopt(...) &
1369 * starts with a byref flag, followed by the modifiers. (bug #49802)
1370 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1371 * it would be better to treat byref as real type constructor instead of
1373 * Also, pinned should come before anything else, but some MSV++ produced
1374 * assemblies violate this (#bug 61990).
1377 /* Count the modifiers first */
1382 case MONO_TYPE_PINNED:
1383 case MONO_TYPE_BYREF:
1386 case MONO_TYPE_CMOD_REQD:
1387 case MONO_TYPE_CMOD_OPT:
1389 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1397 type = g_malloc0 (sizeof (MonoType) + ((gint32)count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoCustomMod));
1398 type->num_mods = count;
1400 g_warning ("got more than 64 modifiers in type");
1403 memset (type, 0, sizeof (MonoType));
1406 /* Parse pinned, byref and custom modifiers */
1411 case MONO_TYPE_PINNED:
1415 case MONO_TYPE_BYREF:
1419 case MONO_TYPE_CMOD_REQD:
1420 case MONO_TYPE_CMOD_OPT:
1421 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1429 type->attrs = opt_attrs;
1430 type->byref = byref;
1431 type->pinned = pinned ? 1 : 0;
1433 if (!do_mono_metadata_parse_type (type, m, container, ptr, &ptr)) {
1443 /* FIXME: remove the != MONO_PARSE_PARAM condition, this accounts for
1444 * almost 10k (about 2/3rds) of all MonoType's we create.
1446 if (mode != MONO_PARSE_PARAM && !type->num_mods) {
1447 /* no need to free type here, because it is on the stack */
1448 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1450 return &type->data.klass->this_arg;
1452 return &type->data.klass->byval_arg;
1454 /* No need to use locking since nobody is modifying the hash table */
1455 if ((cached = g_hash_table_lookup (type_cache, type)))
1459 /*printf ("%x%c %s\n", type->attrs, type->pinned ? 'p' : ' ', mono_type_full_name (type));*/
1462 type = g_memdup (&stype, sizeof (MonoType));
1467 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1468 const char *ptr, const char **rptr)
1470 return mono_metadata_parse_type_full (m, NULL, mode, opt_attrs, ptr, rptr);
1474 * mono_metadata_parse_signature_full:
1475 * @image: metadata context
1476 * @generic_container: generic container
1477 * @toke: metadata token
1479 * Decode a method signature stored in the STANDALONESIG table
1481 * Returns: a MonoMethodSignature describing the signature.
1483 MonoMethodSignature*
1484 mono_metadata_parse_signature_full (MonoImage *image, MonoGenericContainer *generic_container, guint32 token)
1486 MonoTableInfo *tables = image->tables;
1487 guint32 idx = mono_metadata_token_index (token);
1492 return mono_lookup_dynamic_token (image, token);
1494 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1496 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1498 ptr = mono_metadata_blob_heap (image, sig);
1499 mono_metadata_decode_blob_size (ptr, &ptr);
1501 return mono_metadata_parse_method_signature_full (image, generic_container, FALSE, ptr, NULL);
1505 * mono_metadata_parse_signature:
1506 * @image: metadata context
1507 * @toke: metadata token
1509 * Decode a method signature stored in the STANDALONESIG table
1511 * Returns: a MonoMethodSignature describing the signature.
1513 MonoMethodSignature*
1514 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1516 return mono_metadata_parse_signature_full (image, NULL, token);
1520 * mono_metadata_signature_alloc:
1521 * @image: metadata context
1522 * @nparmas: number of parameters in the signature
1524 * Allocate a MonoMethodSignature structure with the specified number of params.
1525 * The return type and the params types need to be filled later.
1526 * This is a Mono runtime internal function.
1528 * Returns: the new MonoMethodSignature structure.
1530 MonoMethodSignature*
1531 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1533 MonoMethodSignature *sig;
1535 /* later we want to allocate signatures with mempools */
1536 sig = g_malloc0 (sizeof (MonoMethodSignature) + ((gint32)nparams - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
1537 sig->param_count = nparams;
1538 sig->sentinelpos = -1;
1544 * mono_metadata_signature_dup:
1545 * @sig: method signature
1547 * Duplicate an existing MonoMethodSignature so it can be modified.
1548 * This is a Mono runtime internal function.
1550 * Returns: the new MonoMethodSignature structure.
1552 MonoMethodSignature*
1553 mono_metadata_signature_dup (MonoMethodSignature *sig)
1557 sigsize = sizeof (MonoMethodSignature) + (sig->param_count - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType *);
1558 return g_memdup (sig, sigsize);
1562 * mono_metadata_parse_method_signature:
1563 * @m: metadata context
1564 * @generic_container: generics container
1565 * @def: the MethodDef index or 0 for Ref signatures.
1566 * @ptr: pointer to the signature metadata representation
1567 * @rptr: pointer updated to match the end of the decoded stream
1569 * Decode a method signature stored at @ptr.
1570 * This is a Mono runtime internal function.
1572 * Returns: a MonoMethodSignature describing the signature.
1574 MonoMethodSignature *
1575 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
1576 int def, const char *ptr, const char **rptr)
1578 MonoMethodSignature *method;
1579 int i, *pattrs = NULL;
1580 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
1581 guint32 gen_param_count = 0;
1582 gboolean is_open = FALSE;
1585 gen_param_count = 1;
1590 call_convention = *ptr & 0x0F;
1592 if (gen_param_count)
1593 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
1594 param_count = mono_metadata_decode_value (ptr, &ptr);
1597 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1598 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1599 guint32 cols [MONO_PARAM_SIZE];
1600 guint lastp, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1602 if (def < methodt->rows)
1603 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1605 lastp = paramt->rows + 1;
1607 pattrs = g_new0 (int, 1 + param_count);
1608 for (i = param_index; i < lastp; ++i) {
1609 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1610 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1613 method = mono_metadata_signature_alloc (m, param_count);
1614 method->hasthis = hasthis;
1615 method->explicit_this = explicit_this;
1616 method->call_convention = call_convention;
1617 method->generic_param_count = gen_param_count;
1619 if (call_convention != 0xa) {
1620 method->ret = mono_metadata_parse_type_full (m, container, MONO_PARSE_RET, pattrs ? pattrs [0] : 0, ptr, &ptr);
1622 mono_metadata_free_method_signature (method);
1626 is_open = mono_class_is_open_constructed_type (method->ret);
1629 for (i = 0; i < method->param_count; ++i) {
1630 if (*ptr == MONO_TYPE_SENTINEL) {
1631 if (method->call_convention != MONO_CALL_VARARG || def)
1632 g_error ("found sentinel for methoddef or no vararg method");
1633 method->sentinelpos = i;
1636 method->params [i] = mono_metadata_parse_type_full (m, container, MONO_PARSE_PARAM, pattrs ? pattrs [i+1] : 0, ptr, &ptr);
1637 if (!method->params [i]) {
1638 mono_metadata_free_method_signature (method);
1643 is_open = mono_class_is_open_constructed_type (method->params [i]);
1646 method->has_type_parameters = is_open;
1648 if (def && (method->call_convention == MONO_CALL_VARARG))
1649 method->sentinelpos = method->param_count;
1656 * Add signature to a cache and increase ref count...
1663 * mono_metadata_parse_method_signature:
1664 * @m: metadata context
1665 * @def: the MethodDef index or 0 for Ref signatures.
1666 * @ptr: pointer to the signature metadata representation
1667 * @rptr: pointer updated to match the end of the decoded stream
1669 * Decode a method signature stored at @ptr.
1670 * This is a Mono runtime internal function.
1672 * Returns: a MonoMethodSignature describing the signature.
1674 MonoMethodSignature *
1675 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
1677 return mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr);
1681 * mono_metadata_free_method_signature:
1682 * @sig: signature to destroy
1684 * Free the memory allocated in the signature @sig.
1685 * This method needs to be robust and work also on partially-built
1686 * signatures, so it does extra checks.
1689 mono_metadata_free_method_signature (MonoMethodSignature *sig)
1693 mono_metadata_free_type (sig->ret);
1694 for (i = 0; i < sig->param_count; ++i) {
1695 if (sig->params [i])
1696 mono_metadata_free_type (sig->params [i]);
1703 * mono_metadata_lookup_generic_inst:
1705 * Check whether the newly created generic instantiation @ginst already exists
1706 * in the cache and return the cached value in this case. Otherwise insert
1707 * it into the cache.
1709 * Use this method each time you create a new `MonoGenericInst' to ensure
1710 * proper caching. Only use the returned value as the argument passed to this
1711 * method may be freed.
1715 mono_metadata_lookup_generic_inst (MonoGenericInst *ginst)
1717 MonoGenericInst *cached;
1720 cached = g_hash_table_lookup (generic_inst_cache, ginst);
1722 for (i = 0; i < ginst->type_argc; i++)
1723 mono_metadata_free_type (ginst->type_argv [i]);
1724 g_free (ginst->type_argv);
1729 ginst->id = ++next_generic_inst_id;
1730 g_hash_table_insert (generic_inst_cache, ginst, ginst);
1736 * mono_metadata_lookup_generic_class:
1738 * Check whether the newly created generic class @gclass already exists
1739 * in the cache and return the cached value in this case. Otherwise insert
1740 * it into the cache and return NULL.
1742 * Returns: the previosly cached generic class or NULL if it has been newly
1743 * inserted into the cache.
1747 mono_metadata_lookup_generic_class (MonoGenericClass *gclass)
1749 MonoGenericClass *cached;
1751 cached = g_hash_table_lookup (generic_class_cache, gclass);
1755 g_hash_table_insert (generic_class_cache, gclass, gclass);
1760 * mono_metadata_inflate_generic_inst:
1762 * Instantiate the generic instance @ginst with the context @context.
1766 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context)
1768 MonoGenericInst *nginst;
1771 nginst = g_new0 (MonoGenericInst, 1);
1772 nginst->type_argc = ginst->type_argc;
1773 nginst->type_argv = g_new0 (MonoType*, nginst->type_argc);
1774 nginst->is_reference = 1;
1776 for (i = 0; i < nginst->type_argc; i++) {
1777 MonoType *t = mono_class_inflate_generic_type (ginst->type_argv [i], context);
1779 if (!nginst->is_open)
1780 nginst->is_open = mono_class_is_open_constructed_type (t);
1781 if (nginst->is_reference)
1782 nginst->is_reference = MONO_TYPE_IS_REFERENCE (t);
1784 nginst->type_argv [i] = t;
1787 return mono_metadata_lookup_generic_inst (nginst);
1791 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
1792 int count, const char *ptr, const char **rptr)
1794 MonoGenericInst *ginst;
1797 ginst = g_new0 (MonoGenericInst, 1);
1798 ginst->type_argc = count;
1799 ginst->type_argv = g_new0 (MonoType*, count);
1800 ginst->is_reference = 1;
1802 for (i = 0; i < ginst->type_argc; i++) {
1803 MonoType *t = mono_metadata_parse_type_full (m, container, MONO_PARSE_TYPE, 0, ptr, &ptr);
1806 g_free (ginst->type_argv);
1810 ginst->type_argv [i] = t;
1811 if (!ginst->is_open)
1812 ginst->is_open = mono_class_is_open_constructed_type (t);
1813 if (ginst->is_reference)
1814 ginst->is_reference = MONO_TYPE_IS_REFERENCE (t);
1820 return mono_metadata_lookup_generic_inst (ginst);
1824 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
1825 const char *ptr, const char **rptr)
1827 MonoInflatedGenericClass *igclass;
1828 MonoGenericClass *gclass, *cached;
1833 igclass = g_new0 (MonoInflatedGenericClass, 1);
1834 gclass = &igclass->generic_class;
1835 gclass->is_inflated = TRUE;
1837 type->data.generic_class = gclass;
1839 gclass->context = g_new0 (MonoGenericContext, 1);
1840 gclass->context->gclass = gclass;
1843 * Create the klass before parsing the type arguments.
1844 * This is required to support "recursive" definitions.
1845 * See mcs/tests/gen-23.cs for an example.
1847 igclass->klass = g_new0 (MonoClass, 1);
1849 gtype = mono_metadata_parse_type (m, MONO_PARSE_TYPE, 0, ptr, &ptr);
1850 gclass->container_class = gklass = mono_class_from_mono_type (gtype);
1852 g_assert (gklass->generic_container);
1853 gclass->context->container = gklass->generic_container;
1855 count = mono_metadata_decode_value (ptr, &ptr);
1857 gclass->inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr);
1863 * We may be called multiple times on different metadata to create the same
1864 * instantiated type. This happens for instance if we're part of a method or
1865 * local variable signature.
1867 * It's important to return the same MonoGenericClass * for each particualar
1868 * instantiation of a generic type (ie "Stack<Int32>") to make static fields
1871 * According to the spec ($26.1.5), a static variable in a generic class
1872 * declaration is shared amongst all instances of the same closed constructed
1876 cached = g_hash_table_lookup (generic_class_cache, gclass);
1878 g_free (igclass->klass);
1881 type->data.generic_class = cached;
1884 g_hash_table_insert (generic_class_cache, gclass, gclass);
1886 mono_stats.generic_instance_count++;
1887 mono_stats.generics_metadata_size += sizeof (MonoGenericClass) +
1888 sizeof (MonoGenericContext) +
1889 gclass->inst->type_argc * sizeof (MonoType);
1895 * @gc: The generic container to normalize
1896 * @type: The kind of generic parameters the resulting generic-container should contain
1899 static MonoGenericContainer *
1900 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
1902 gboolean is_var = (type == MONO_TYPE_VAR);
1906 g_assert (is_var || type == MONO_TYPE_MVAR);
1908 if (is_var && gc->parent)
1910 * The current MonoGenericContainer is a generic method -> its `parent'
1911 * points to the containing class'es container.
1916 * Ensure that we have the correct type of GenericContainer.
1918 g_assert (is_var == !gc->is_method);
1924 * mono_metadata_parse_generic_param:
1925 * @generic_container: Our MonoClass's or MonoMethodNormal's MonoGenericContainer;
1926 * see mono_metadata_parse_type_full() for details.
1927 * Internal routine to parse a generic type parameter.
1929 static MonoGenericParam *
1930 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
1931 MonoTypeEnum type, const char *ptr, const char **rptr)
1933 int index = mono_metadata_decode_value (ptr, &ptr);
1937 generic_container = select_container (generic_container, type);
1938 if (!generic_container) {
1939 /* Create dummy MonoGenericParam */
1940 MonoGenericParam *param = g_new0 (MonoGenericParam, 1);
1941 param->name = g_strdup_printf ("%d", index);
1947 g_assert (index < generic_container->type_argc);
1948 return &generic_container->type_params [index];
1952 * do_mono_metadata_parse_type:
1953 * @type: MonoType to be filled in with the return value
1955 * @generic_context: generics_context
1956 * @ptr: pointer to the encoded type
1957 * @rptr: pointer where the end of the encoded type is saved
1959 * Internal routine used to "fill" the contents of @type from an
1960 * allocated pointer. This is done this way to avoid doing too
1961 * many mini-allocations (particularly for the MonoFieldType which
1962 * most of the time is just a MonoType, but sometimes might be augmented).
1964 * This routine is used by mono_metadata_parse_type and
1965 * mono_metadata_parse_field_type
1967 * This extracts a Type as specified in Partition II (22.2.12)
1969 * Returns: FALSE if the type could not be loaded
1972 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
1973 const char *ptr, const char **rptr)
1975 type->type = mono_metadata_decode_value (ptr, &ptr);
1977 switch (type->type){
1978 case MONO_TYPE_VOID:
1979 case MONO_TYPE_BOOLEAN:
1980 case MONO_TYPE_CHAR:
1993 case MONO_TYPE_STRING:
1994 case MONO_TYPE_OBJECT:
1995 case MONO_TYPE_TYPEDBYREF:
1997 case MONO_TYPE_VALUETYPE:
1998 case MONO_TYPE_CLASS: {
2000 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
2001 type->data.klass = mono_class_get (m, token);
2002 if (!type->data.klass)
2006 case MONO_TYPE_SZARRAY: {
2007 MonoType *etype = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2010 type->data.klass = mono_class_from_mono_type (etype);
2011 mono_metadata_free_type (etype);
2015 type->data.type = mono_metadata_parse_type_full (m, container, MONO_PARSE_MOD_TYPE, 0, ptr, &ptr);
2016 if (!type->data.type)
2019 case MONO_TYPE_FNPTR:
2020 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr);
2022 case MONO_TYPE_ARRAY:
2023 type->data.array = mono_metadata_parse_array_full (m, container, ptr, &ptr);
2025 case MONO_TYPE_MVAR:
2027 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr);
2029 case MONO_TYPE_GENERICINST:
2030 do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr);
2033 g_error ("type 0x%02x not handled in do_mono_metadata_parse_type", type->type);
2042 * mono_metadata_free_type:
2043 * @type: type to free
2045 * Free the memory allocated for type @type.
2048 mono_metadata_free_type (MonoType *type)
2050 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
2053 switch (type->type){
2054 case MONO_TYPE_OBJECT:
2055 case MONO_TYPE_STRING:
2056 if (!type->data.klass)
2059 case MONO_TYPE_CLASS:
2060 case MONO_TYPE_VALUETYPE:
2061 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
2065 mono_metadata_free_type (type->data.type);
2067 case MONO_TYPE_FNPTR:
2068 mono_metadata_free_method_signature (type->data.method);
2070 case MONO_TYPE_ARRAY:
2071 mono_metadata_free_array (type->data.array);
2079 hex_dump (const char *buffer, int base, int count)
2081 int show_header = 1;
2089 for (i = 0; i < count; i++){
2092 printf ("\n0x%08x: ", (unsigned char) base + i);
2094 printf ("%02x ", (unsigned char) (buffer [i]));
2101 * @mh: The Method header
2102 * @ptr: Points to the beginning of the Section Data (25.3)
2105 parse_section_data (MonoImage *m, MonoMethodHeader *mh, const unsigned char *ptr)
2107 unsigned char sect_data_flags;
2108 const unsigned char *sptr;
2110 guint32 sect_data_len;
2113 /* align on 32-bit boundary */
2114 /* FIXME: not 64-bit clean code */
2115 sptr = ptr = dword_align (ptr);
2116 sect_data_flags = *ptr;
2119 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
2121 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
2124 sect_data_len = ptr [0];
2128 g_print ("flags: %02x, len: %d\n", sect_data_flags, sect_data_len);
2129 hex_dump (sptr, 0, sect_data_len+8);
2130 g_print ("\nheader: ");
2131 hex_dump (sptr-4, 0, 4);
2135 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
2136 const unsigned char *p = dword_align (ptr);
2138 mh->num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
2139 /* we could just store a pointer if we don't need to byteswap */
2140 mh->clauses = g_new0 (MonoExceptionClause, mh->num_clauses);
2141 for (i = 0; i < mh->num_clauses; ++i) {
2142 MonoExceptionClause *ec = &mh->clauses [i];
2145 ec->flags = read32 (p);
2146 ec->try_offset = read32 (p + 4);
2147 ec->try_len = read32 (p + 8);
2148 ec->handler_offset = read32 (p + 12);
2149 ec->handler_len = read32 (p + 16);
2150 tof_value = read32 (p + 20);
2153 ec->flags = read16 (p);
2154 ec->try_offset = read16 (p + 2);
2155 ec->try_len = *(p + 4);
2156 ec->handler_offset = read16 (p + 5);
2157 ec->handler_len = *(p + 7);
2158 tof_value = read32 (p + 8);
2161 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
2162 ec->data.filter_offset = tof_value;
2163 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
2164 ec->data.catch_class = tof_value? mono_class_get (m, tof_value): 0;
2166 ec->data.catch_class = NULL;
2168 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
2172 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
2173 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
2180 * mono_metadata_parse_mh_full:
2181 * @m: metadata context
2182 * @generic_context: generics context
2183 * @ptr: pointer to the method header.
2185 * Decode the method header at @ptr, including pointer to the IL code,
2186 * info about local variables and optional exception tables.
2187 * This is a Mono runtime internal function.
2189 * Returns: a MonoMethodHeader.
2192 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
2194 MonoMethodHeader *mh;
2195 unsigned char flags = *(const unsigned char *) ptr;
2196 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
2198 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
2199 const unsigned char *code;
2202 g_return_val_if_fail (ptr != NULL, NULL);
2205 case METHOD_HEADER_TINY_FORMAT:
2206 mh = g_new0 (MonoMethodHeader, 1);
2209 local_var_sig_tok = 0;
2210 mh->code_size = flags >> 2;
2213 case METHOD_HEADER_TINY_FORMAT1:
2214 mh = g_new0 (MonoMethodHeader, 1);
2217 local_var_sig_tok = 0;
2220 * The spec claims 3 bits, but the Beta2 is
2223 mh->code_size = flags >> 2;
2226 case METHOD_HEADER_FAT_FORMAT:
2227 fat_flags = read16 (ptr);
2229 hsize = (fat_flags >> 12) & 0xf;
2230 max_stack = read16 (ptr);
2232 code_size = read32 (ptr);
2234 local_var_sig_tok = read32 (ptr);
2237 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
2244 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
2248 * There are more sections
2250 ptr = code + code_size;
2256 if (local_var_sig_tok) {
2257 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
2258 const char *locals_ptr;
2259 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
2260 int len=0, i, bsize;
2262 mono_metadata_decode_row (t, (local_var_sig_tok & 0xffffff)-1, cols, 1);
2263 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
2264 bsize = mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
2265 if (*locals_ptr != 0x07)
2266 g_warning ("wrong signature for locals blob");
2268 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
2269 mh = g_malloc0 (sizeof (MonoMethodHeader) + (len - MONO_ZERO_LEN_ARRAY) * sizeof (MonoType*));
2270 mh->num_locals = len;
2271 for (i = 0; i < len; ++i) {
2272 mh->locals [i] = mono_metadata_parse_type_full (
2273 m, container, MONO_PARSE_LOCAL, 0, locals_ptr, &locals_ptr);
2274 if (!mh->locals [i]) {
2280 mh = g_new0 (MonoMethodHeader, 1);
2283 mh->code_size = code_size;
2284 mh->max_stack = max_stack;
2285 mh->init_locals = init_locals;
2286 if (fat_flags & METHOD_HEADER_MORE_SECTS)
2287 parse_section_data (m, mh, (const unsigned char*)ptr);
2292 * mono_metadata_parse_mh:
2293 * @generic_context: generics context
2294 * @ptr: pointer to the method header.
2296 * Decode the method header at @ptr, including pointer to the IL code,
2297 * info about local variables and optional exception tables.
2298 * This is a Mono runtime internal function.
2300 * Returns: a MonoMethodHeader.
2303 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
2305 return mono_metadata_parse_mh_full (m, NULL, ptr);
2309 * mono_metadata_free_mh:
2310 * @mh: a method header
2312 * Free the memory allocated for the method header.
2313 * This is a Mono runtime internal function.
2316 mono_metadata_free_mh (MonoMethodHeader *mh)
2319 for (i = 0; i < mh->num_locals; ++i)
2320 mono_metadata_free_type (mh->locals[i]);
2321 g_free (mh->clauses);
2326 * mono_method_header_get_code:
2327 * @header: a MonoMethodHeader pointer
2328 * @code_size: memory location for returning the code size
2329 * @max_stack: memory location for returning the max stack
2331 * Method header accessor to retreive info about the IL code properties:
2332 * a pointer to the IL code itself, the size of the code and the max number
2333 * of stack slots used by the code.
2335 * Returns: pointer to the IL code represented by the method header.
2337 const unsigned char*
2338 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
2341 *code_size = header->code_size;
2343 *max_stack = header->max_stack;
2344 return header->code;
2348 * mono_method_header_get_locals:
2349 * @header: a MonoMethodHeader pointer
2350 * @num_locals: memory location for returning the number of local variables
2351 * @init_locals: memory location for returning the init_locals flag
2353 * Method header accessor to retreive info about the local variables:
2354 * an array of local types, the number of locals and whether the locals
2355 * are supposed to be initialized to 0 on method entry
2357 * Returns: pointer to an array of types of the local variables
2360 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
2363 *num_locals = header->num_locals;
2365 *init_locals = header->init_locals;
2366 return header->locals;
2370 * mono_method_header_get_num_clauses:
2371 * @header: a MonoMethodHeader pointer
2373 * Method header accessor to retreive the number of exception clauses.
2375 * Returns: the number of exception clauses present
2378 mono_method_header_get_num_clauses (MonoMethodHeader *header)
2380 return header->num_clauses;
2384 * mono_method_header_get_clauses:
2385 * @header: a MonoMethodHeader pointer
2386 * @method: MonoMethod the header belongs to
2387 * @iter: pointer to a iterator
2388 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
2390 * Get the info about the exception clauses in the method. Set *iter to NULL to
2391 * initiate the iteration, then call the method repeatedly until it returns FALSE.
2392 * At each iteration, the structure pointed to by clause if filled with the
2393 * exception clause information.
2395 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
2399 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
2401 MonoExceptionClause *sc;
2402 /* later we'll be able to use this interface to parse the clause info on demand,
2403 * without allocating anything.
2405 if (!iter || !header->num_clauses)
2408 *iter = sc = header->clauses;
2414 if (sc < header->clauses + header->num_clauses) {
2423 * mono_metadata_parse_field_type:
2424 * @m: metadata context to extract information from
2425 * @ptr: pointer to the field signature
2426 * @rptr: pointer updated to match the end of the decoded stream
2428 * Parses the field signature, and returns the type information for it.
2430 * Returns: The MonoType that was extracted from @ptr.
2433 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
2435 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
2439 * mono_metadata_parse_param:
2440 * @m: metadata context to extract information from
2441 * @ptr: pointer to the param signature
2442 * @rptr: pointer updated to match the end of the decoded stream
2444 * Parses the param signature, and returns the type information for it.
2446 * Returns: The MonoType that was extracted from @ptr.
2449 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
2451 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
2455 * mono_metadata_token_from_dor:
2456 * @dor_token: A TypeDefOrRef coded index
2458 * dor_token is a TypeDefOrRef coded index: it contains either
2459 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
2460 * bits contain an index into the table.
2462 * Returns: an expanded token
2465 mono_metadata_token_from_dor (guint32 dor_index)
2469 table = dor_index & 0x03;
2470 idx = dor_index >> 2;
2473 case 0: /* TypeDef */
2474 return MONO_TOKEN_TYPE_DEF | idx;
2475 case 1: /* TypeRef */
2476 return MONO_TOKEN_TYPE_REF | idx;
2477 case 2: /* TypeSpec */
2478 return MONO_TOKEN_TYPE_SPEC | idx;
2480 g_assert_not_reached ();
2487 * We use this to pass context information to the row locator
2490 int idx; /* The index that we are trying to locate */
2491 int col_idx; /* The index in the row where idx may be stored */
2492 MonoTableInfo *t; /* pointer to the table */
2497 * How the row locator works.
2502 * ___|___------> _______
2505 * A column in the rows of table A references an index in table B.
2506 * For example A may be the TYPEDEF table and B the METHODDEF table.
2508 * Given an index in table B we want to get the row in table A
2509 * where the column n references our index in B.
2511 * In the locator_t structure:
2513 * col_idx is the column number
2514 * index is the index in table B
2515 * result will be the index in table A
2518 * Table A Table B column (in table A)
2519 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
2520 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
2521 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
2522 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
2523 * METHODSEM PROPERTY ASSOCIATION (encoded index)
2525 * Note that we still don't support encoded indexes.
2529 typedef_locator (const void *a, const void *b)
2531 locator_t *loc = (locator_t *) a;
2532 const char *bb = (const char *) b;
2533 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
2534 guint32 col, col_next;
2536 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
2542 * Need to check that the next row is valid.
2544 if (typedef_index + 1 < loc->t->rows) {
2545 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
2546 if (loc->idx >= col_next)
2549 if (col == col_next)
2553 loc->result = typedef_index;
2559 table_locator (const void *a, const void *b)
2561 locator_t *loc = (locator_t *) a;
2562 const char *bb = (const char *) b;
2563 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
2566 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
2568 if (loc->idx == col) {
2569 loc->result = table_index;
2579 declsec_locator (const void *a, const void *b)
2581 locator_t *loc = (locator_t *) a;
2582 const char *bb = (const char *) b;
2583 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
2586 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
2588 if (loc->idx == col) {
2589 loc->result = table_index;
2599 * mono_metadata_typedef_from_field:
2600 * @meta: metadata context
2601 * @index: FieldDef token
2603 * Returns: the 1-based index into the TypeDef table of the type that
2604 * declared the field described by @index, or 0 if not found.
2607 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
2609 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
2615 loc.idx = mono_metadata_token_index (index);
2616 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
2619 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
2620 g_assert_not_reached ();
2622 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
2623 return loc.result + 1;
2627 * mono_metadata_typedef_from_method:
2628 * @meta: metadata context
2629 * @index: MethodDef token
2631 * Returns: the 1-based index into the TypeDef table of the type that
2632 * declared the method described by @index. 0 if not found.
2635 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
2637 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
2643 loc.idx = mono_metadata_token_index (index);
2644 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
2647 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
2648 g_assert_not_reached ();
2650 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
2651 return loc.result + 1;
2655 * mono_metadata_interfaces_from_typedef_full:
2656 * @meta: metadata context
2657 * @index: typedef token
2659 * The array of interfaces that the @index typedef token implements is returned in
2660 * @interfaces. The number of elemnts in the array is returned in @count.
2662 * Returns: TRUE on success, FALSE on failure.
2665 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, MonoGenericContext *context)
2667 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
2670 guint32 cols [MONO_INTERFACEIMPL_SIZE];
2679 loc.idx = mono_metadata_token_index (index);
2680 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
2683 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
2688 * We may end up in the middle of the rows...
2691 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
2698 while (start < tdef->rows) {
2699 mono_metadata_decode_row (tdef, start, cols, MONO_INTERFACEIMPL_SIZE);
2700 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
2702 result = g_renew (MonoClass*, result, i + 1);
2703 result [i] = mono_class_get_full (
2704 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context);
2708 *interfaces = result;
2713 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
2715 MonoClass **interfaces;
2718 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, NULL);
2726 * mono_metadata_nested_in_typedef:
2727 * @meta: metadata context
2728 * @index: typedef token
2730 * Returns: the 1-based index into the TypeDef table of the type
2731 * where the type described by @index is nested.
2732 * Retruns 0 if @index describes a non-nested type.
2735 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
2737 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
2743 loc.idx = mono_metadata_token_index (index);
2744 loc.col_idx = MONO_NESTED_CLASS_NESTED;
2747 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
2750 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
2751 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
2755 * mono_metadata_nesting_typedef:
2756 * @meta: metadata context
2757 * @index: typedef token
2759 * Returns: the 1-based index into the TypeDef table of the first type
2760 * that is nested inside the type described by @index. The search starts at
2761 * @start_index. returns 0 if no such type is found.
2764 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
2766 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
2768 guint32 class_index = mono_metadata_token_index (index);
2773 start = start_index;
2775 while (start <= tdef->rows) {
2776 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
2782 if (start > tdef->rows)
2789 * mono_metadata_packing_from_typedef:
2790 * @meta: metadata context
2791 * @index: token representing a type
2793 * Returns: the info stored in the ClassLAyout table for the given typedef token
2794 * into the @packing and @size pointers.
2795 * Returns 0 if the info is not found.
2798 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
2800 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
2802 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
2807 loc.idx = mono_metadata_token_index (index);
2808 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
2811 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
2814 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
2816 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
2818 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
2820 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
2821 return loc.result + 1;
2825 * mono_metadata_custom_attrs_from_index:
2826 * @meta: metadata context
2827 * @index: token representing the parent
2829 * Returns: the 1-based index into the CustomAttribute table of the first
2830 * attribute which belongs to the metadata object described by @index.
2831 * Returns 0 if no such attribute is found.
2834 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
2836 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
2843 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
2846 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
2849 /* Find the first entry by searching backwards */
2850 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
2853 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
2854 return loc.result + 1;
2858 * mono_metadata_declsec_from_index:
2859 * @meta: metadata context
2860 * @index: token representing the parent
2862 * Returns: the 0-based index into the DeclarativeSecurity table of the first
2863 * attribute which belongs to the metadata object described by @index.
2864 * Returns -1 if no such attribute is found.
2867 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
2869 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
2876 loc.col_idx = MONO_DECL_SECURITY_PARENT;
2879 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
2882 /* Find the first entry by searching backwards */
2883 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
2891 mono_backtrace (int limit)
2896 backtrace (array, limit);
2897 names = backtrace_symbols (array, limit);
2898 for (i =0; i < limit; ++i) {
2899 g_print ("\t%s\n", names [i]);
2906 /*#define __alignof__(a) sizeof(a)*/
2907 #define __alignof__(type) G_STRUCT_OFFSET(struct { char c; type x; }, x)
2912 * @t: the type to return the size of
2914 * Returns: the number of bytes required to hold an instance of this
2918 mono_type_size (MonoType *t, gint *align)
2925 *align = __alignof__(gpointer);
2926 return sizeof (gpointer);
2930 case MONO_TYPE_VOID:
2933 case MONO_TYPE_BOOLEAN:
2934 *align = __alignof__(gint8);
2938 *align = __alignof__(gint8);
2940 case MONO_TYPE_CHAR:
2943 *align = __alignof__(gint16);
2947 *align = __alignof__(gint32);
2950 *align = __alignof__(float);
2954 *align = __alignof__(gint64);
2957 *align = __alignof__(double);
2961 *align = __alignof__(gpointer);
2962 return sizeof (gpointer);
2963 case MONO_TYPE_STRING:
2964 *align = __alignof__(gpointer);
2965 return sizeof (gpointer);
2966 case MONO_TYPE_OBJECT:
2967 *align = __alignof__(gpointer);
2968 return sizeof (gpointer);
2969 case MONO_TYPE_VALUETYPE: {
2970 if (t->data.klass->enumtype)
2971 return mono_type_size (t->data.klass->enum_basetype, align);
2973 return mono_class_value_size (t->data.klass, align);
2975 case MONO_TYPE_CLASS:
2976 case MONO_TYPE_SZARRAY:
2978 case MONO_TYPE_FNPTR:
2979 case MONO_TYPE_ARRAY:
2980 *align = __alignof__(gpointer);
2981 return sizeof (gpointer);
2982 case MONO_TYPE_TYPEDBYREF:
2983 return mono_class_value_size (mono_defaults.typed_reference_class, align);
2984 case MONO_TYPE_GENERICINST: {
2985 MonoInflatedGenericClass *gclass;
2986 MonoClass *container_class;
2988 gclass = mono_get_inflated_generic_class (t->data.generic_class);
2989 g_assert (!gclass->generic_class.inst->is_open);
2990 g_assert (!gclass->klass->generic_container);
2992 container_class = gclass->generic_class.container_class;
2994 if (container_class->valuetype) {
2995 if (container_class->enumtype)
2996 return mono_type_size (container_class->enum_basetype, align);
2998 return mono_class_value_size (gclass->klass, align);
3000 *align = __alignof__(gpointer);
3001 return sizeof (gpointer);
3005 case MONO_TYPE_MVAR:
3006 /* FIXME: Martin, this is wrong. */
3007 *align = __alignof__(gpointer);
3008 return sizeof (gpointer);
3010 g_error ("mono_type_size: type 0x%02x unknown", t->type);
3016 * mono_type_stack_size:
3017 * @t: the type to return the size it uses on the stack
3019 * Returns: the number of bytes required to hold an instance of this
3020 * type on the runtime stack
3023 mono_type_stack_size (MonoType *t, gint *align)
3027 g_assert (t != NULL);
3033 *align = __alignof__(gpointer);
3034 return sizeof (gpointer);
3038 case MONO_TYPE_BOOLEAN:
3039 case MONO_TYPE_CHAR:
3048 case MONO_TYPE_STRING:
3049 case MONO_TYPE_OBJECT:
3050 case MONO_TYPE_CLASS:
3051 case MONO_TYPE_SZARRAY:
3053 case MONO_TYPE_FNPTR:
3054 case MONO_TYPE_ARRAY:
3055 *align = __alignof__(gpointer);
3056 return sizeof (gpointer);
3057 case MONO_TYPE_TYPEDBYREF:
3058 *align = __alignof__(gpointer);
3059 return sizeof (gpointer) * 3;
3061 *align = __alignof__(float);
3062 return sizeof (float);
3065 *align = __alignof__(gint64);
3066 return sizeof (gint64);
3068 *align = __alignof__(double);
3069 return sizeof (double);
3070 case MONO_TYPE_VALUETYPE: {
3073 if (t->data.klass->enumtype)
3074 return mono_type_stack_size (t->data.klass->enum_basetype, align);
3076 size = mono_class_value_size (t->data.klass, align);
3078 *align = *align + __alignof__(gpointer) - 1;
3079 *align &= ~(__alignof__(gpointer) - 1);
3081 size += sizeof (gpointer) - 1;
3082 size &= ~(sizeof (gpointer) - 1);
3087 case MONO_TYPE_GENERICINST: {
3088 MonoInflatedGenericClass *gclass;
3089 MonoClass *container_class;
3091 gclass = mono_get_inflated_generic_class (t->data.generic_class);
3092 container_class = gclass->generic_class.container_class;
3094 g_assert (!gclass->generic_class.inst->is_open);
3095 g_assert (!gclass->klass->generic_container);
3097 if (container_class->valuetype) {
3098 if (container_class->enumtype)
3099 return mono_type_stack_size (container_class->enum_basetype, align);
3101 guint32 size = mono_class_value_size (gclass->klass, align);
3103 *align = *align + __alignof__(gpointer) - 1;
3104 *align &= ~(__alignof__(gpointer) - 1);
3106 size += sizeof (gpointer) - 1;
3107 size &= ~(sizeof (gpointer) - 1);
3112 *align = __alignof__(gpointer);
3113 return sizeof (gpointer);
3117 g_error ("type 0x%02x unknown", t->type);
3123 mono_type_generic_inst_is_valuetype (MonoType *type)
3125 g_assert (type->type == MONO_TYPE_GENERICINST);
3126 return type->data.generic_class->container_class->valuetype;
3130 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
3132 return gclass->container_class->valuetype;
3136 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
3140 if ((g1->inst->type_argc != g2->inst->type_argc) || (g1->is_dynamic != g2->is_dynamic) ||
3141 (g1->inst->is_reference != g2->inst->is_reference))
3143 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
3145 for (i = 0; i < g1->inst->type_argc; ++i) {
3146 if (!do_mono_metadata_type_equal (g1->inst->type_argv [i], g2->inst->type_argv [i], signature_only))
3153 mono_metadata_generic_method_hash (MonoGenericMethod *gmethod)
3155 return gmethod->inst->id;
3159 mono_metadata_generic_method_equal (MonoGenericMethod *g1, MonoGenericMethod *g2)
3161 return (g1->container == g2->container) && (g1->generic_class == g2->generic_class) &&
3162 (g1->inst == g2->inst);
3167 * mono_metadata_type_hash:
3170 * Computes an hash value for @t1 to be used in GHashTable.
3173 mono_metadata_type_hash (MonoType *t1)
3175 guint hash = t1->type;
3177 hash |= t1->byref << 6; /* do not collide with t1->type values */
3179 case MONO_TYPE_VALUETYPE:
3180 case MONO_TYPE_CLASS:
3181 case MONO_TYPE_SZARRAY:
3182 /* check if the distribution is good enough */
3183 return ((hash << 5) - hash) ^ g_str_hash (t1->data.klass->name);
3185 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
3186 case MONO_TYPE_ARRAY:
3187 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
3188 case MONO_TYPE_GENERICINST:
3189 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
3195 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
3199 if (p1->num != p2->num)
3202 if (p1->owner == p2->owner)
3206 * If `signature_only' is true, we're comparing two (method) signatures.
3207 * In this case, the owner of two type parameters doesn't need to match.
3210 return signature_only;
3214 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
3218 if (c1->generic_class && c2->generic_class)
3219 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
3220 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
3221 return mono_metadata_generic_param_equal (
3222 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
3223 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
3224 return mono_metadata_generic_param_equal (
3225 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
3226 if (signature_only &&
3227 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
3228 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
3233 * mono_metadata_type_equal:
3237 * Determine if @t1 and @t2 represent the same type.
3238 * Returns: #TRUE if @t1 and @t2 are equal.
3241 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
3243 if (t1->type != t2->type || t1->byref != t2->byref)
3247 case MONO_TYPE_VOID:
3248 case MONO_TYPE_BOOLEAN:
3249 case MONO_TYPE_CHAR:
3260 case MONO_TYPE_STRING:
3263 case MONO_TYPE_OBJECT:
3264 case MONO_TYPE_TYPEDBYREF:
3266 case MONO_TYPE_VALUETYPE:
3267 case MONO_TYPE_CLASS:
3268 case MONO_TYPE_SZARRAY:
3269 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
3271 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
3272 case MONO_TYPE_ARRAY:
3273 if (t1->data.array->rank != t2->data.array->rank)
3275 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
3276 case MONO_TYPE_GENERICINST:
3277 return _mono_metadata_generic_class_equal (
3278 t1->data.generic_class, t2->data.generic_class, signature_only);
3280 return mono_metadata_generic_param_equal (
3281 t1->data.generic_param, t2->data.generic_param, signature_only);
3282 case MONO_TYPE_MVAR:
3283 return mono_metadata_generic_param_equal (
3284 t1->data.generic_param, t2->data.generic_param, signature_only);
3286 g_error ("implement type compare for %0x!", t1->type);
3294 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
3296 return do_mono_metadata_type_equal (t1, t2, FALSE);
3300 * mono_metadata_signature_equal:
3301 * @sig1: a signature
3302 * @sig2: another signature
3304 * Determine if @sig1 and @sig2 represent the same signature, with the
3305 * same number of arguments and the same types.
3306 * Returns: #TRUE if @sig1 and @sig2 are equal.
3309 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
3313 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
3317 * We're just comparing the signatures of two methods here:
3319 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
3320 * U and V are equal here.
3322 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
3325 for (i = 0; i < sig1->param_count; i++) {
3326 MonoType *p1 = sig1->params[i];
3327 MonoType *p2 = sig2->params[i];
3329 /* if (p1->attrs != p2->attrs)
3332 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
3336 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
3342 mono_signature_hash (MonoMethodSignature *sig)
3344 guint i, res = sig->ret->type;
3346 for (i = 0; i < sig->param_count; i++)
3347 res = (res << 5) - res + mono_type_hash (sig->params[i]);
3353 * mono_metadata_encode_value:
3354 * @value: value to encode
3355 * @buf: buffer where to write the compressed representation
3356 * @endbuf: pointer updated to point at the end of the encoded output
3358 * Encodes the value @value in the compressed representation used
3359 * in metadata and stores the result in @buf. @buf needs to be big
3360 * enough to hold the data (4 bytes).
3363 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
3369 else if (value < 0x4000) {
3370 p [0] = 0x80 | (value >> 8);
3371 p [1] = value & 0xff;
3374 p [0] = (value >> 24) | 0xc0;
3375 p [1] = (value >> 16) & 0xff;
3376 p [2] = (value >> 8) & 0xff;
3377 p [3] = value & 0xff;
3385 * mono_metadata_field_info:
3386 * @meta: the Image the field is defined in
3387 * @index: the index in the field table representing the field
3388 * @offset: a pointer to an integer where to store the offset that
3389 * may have been specified for the field in a FieldLayout table
3390 * @rva: a pointer to the RVA of the field data in the image that
3391 * may have been defined in a FieldRVA table
3392 * @marshal_spec: a pointer to the marshal spec that may have been
3393 * defined for the field in a FieldMarshal table.
3395 * Gather info for field @index that may have been defined in the FieldLayout,
3396 * FieldRVA and FieldMarshal tables.
3397 * Either of offset, rva and marshal_spec can be NULL if you're not interested
3401 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
3402 MonoMarshalSpec **marshal_spec)
3404 MonoTableInfo *tdef;
3407 loc.idx = index + 1;
3409 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
3411 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
3414 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
3415 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
3417 *offset = (guint32)-1;
3421 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
3423 loc.col_idx = MONO_FIELD_RVA_FIELD;
3426 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
3428 * LAMESPEC: There is no signature, no nothing, just the raw data.
3430 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
3438 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
3439 *marshal_spec = mono_metadata_parse_marshal_spec (meta, p);
3446 * mono_metadata_get_constant_index:
3447 * @meta: the Image the field is defined in
3448 * @index: the token that may have a row defined in the constants table
3449 * @hint: possible position for the row
3451 * @token must be a FieldDef, ParamDef or PropertyDef token.
3453 * Returns: the index into the Constants table or 0 if not found.
3456 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
3458 MonoTableInfo *tdef;
3460 guint32 index = mono_metadata_token_index (token);
3462 tdef = &meta->tables [MONO_TABLE_CONSTANT];
3463 index <<= MONO_HASCONSTANT_BITS;
3464 switch (mono_metadata_token_table (token)) {
3465 case MONO_TABLE_FIELD:
3466 index |= MONO_HASCONSTANT_FIEDDEF;
3468 case MONO_TABLE_PARAM:
3469 index |= MONO_HASCONSTANT_PARAM;
3471 case MONO_TABLE_PROPERTY:
3472 index |= MONO_HASCONSTANT_PROPERTY;
3475 g_warning ("Not a valid token for the constant table: 0x%08x", token);
3479 loc.col_idx = MONO_CONSTANT_PARENT;
3482 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
3485 if (tdef->base && bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
3486 return loc.result + 1;
3492 * mono_metadata_events_from_typedef:
3493 * @meta: metadata context
3494 * @index: 0-based index (in the TypeDef table) describing a type
3496 * Returns: the 0-based index in the Event table for the events in the
3497 * type. The last event that belongs to the type (plus 1) is stored
3498 * in the @end_idx pointer.
3501 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
3505 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
3513 loc.col_idx = MONO_EVENT_MAP_PARENT;
3514 loc.idx = index + 1;
3516 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3519 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
3520 if (loc.result + 1 < tdef->rows) {
3521 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
3523 end = meta->tables [MONO_TABLE_EVENT].rows;
3531 * mono_metadata_methods_from_event:
3532 * @meta: metadata context
3533 * @index: 0-based index (in the Event table) describing a event
3535 * Returns: the 0-based index in the MethodDef table for the methods in the
3536 * event. The last method that belongs to the event (plus 1) is stored
3537 * in the @end_idx pointer.
3540 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
3544 guint32 cols [MONO_METHOD_SEMA_SIZE];
3545 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
3552 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
3553 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
3555 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
3560 * We may end up in the middle of the rows...
3563 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
3569 while (end < msemt->rows) {
3570 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
3571 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
3580 * mono_metadata_properties_from_typedef:
3581 * @meta: metadata context
3582 * @index: 0-based index (in the TypeDef table) describing a type
3584 * Returns: the 0-based index in the Property table for the properties in the
3585 * type. The last property that belongs to the type (plus 1) is stored
3586 * in the @end_idx pointer.
3589 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
3593 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
3601 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
3602 loc.idx = index + 1;
3604 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3607 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
3608 if (loc.result + 1 < tdef->rows) {
3609 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
3611 end = meta->tables [MONO_TABLE_PROPERTY].rows;
3619 * mono_metadata_methods_from_property:
3620 * @meta: metadata context
3621 * @index: 0-based index (in the PropertyDef table) describing a property
3623 * Returns: the 0-based index in the MethodDef table for the methods in the
3624 * property. The last method that belongs to the property (plus 1) is stored
3625 * in the @end_idx pointer.
3628 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
3632 guint32 cols [MONO_METHOD_SEMA_SIZE];
3633 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
3640 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
3641 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
3643 if (!bsearch (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
3648 * We may end up in the middle of the rows...
3651 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
3657 while (end < msemt->rows) {
3658 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
3659 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
3668 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
3671 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
3677 loc.col_idx = MONO_IMPLMAP_MEMBER;
3678 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
3680 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3683 return loc.result + 1;
3687 * @image: context where the image is created
3688 * @type_spec: typespec token
3690 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
3694 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
3696 guint32 idx = mono_metadata_token_index (type_spec);
3698 guint32 cols [MONO_TYPESPEC_SIZE];
3703 mono_loader_lock ();
3705 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
3707 mono_loader_unlock ();
3711 t = &image->tables [MONO_TABLE_TYPESPEC];
3713 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
3714 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
3715 len = mono_metadata_decode_value (ptr, &ptr);
3717 type = g_new0 (MonoType, 1);
3719 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type);
3721 if (*ptr == MONO_TYPE_BYREF) {
3726 if (!do_mono_metadata_parse_type (type, image, NULL, ptr, &ptr)) {
3727 g_hash_table_remove (image->typespec_cache, GUINT_TO_POINTER (type_spec));
3729 mono_loader_unlock ();
3733 mono_loader_unlock ();
3739 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
3741 MonoMarshalSpec *res;
3743 const char *start = ptr;
3745 /* fixme: this is incomplete, but I cant find more infos in the specs */
3747 res = g_new0 (MonoMarshalSpec, 1);
3749 len = mono_metadata_decode_value (ptr, &ptr);
3750 res->native = *ptr++;
3752 if (res->native == MONO_NATIVE_LPARRAY) {
3753 res->data.array_data.param_num = -1;
3754 res->data.array_data.num_elem = -1;
3755 res->data.array_data.elem_mult = -1;
3757 if (ptr - start <= len)
3758 res->data.array_data.elem_type = *ptr++;
3759 if (ptr - start <= len)
3760 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
3761 if (ptr - start <= len)
3762 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
3763 if (ptr - start <= len) {
3765 * LAMESPEC: Older spec versions say this parameter comes before
3766 * num_elem. Never spec versions don't talk about elem_mult at
3767 * all, but csc still emits it, and it is used to distinguish
3768 * between param_num being 0, and param_num being omitted.
3769 * So if (param_num == 0) && (num_elem > 0), then
3770 * elem_mult == 0 -> the array size is num_elem
3771 * elem_mult == 1 -> the array size is @param_num + num_elem
3773 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
3777 if (res->native == MONO_NATIVE_BYVALTSTR) {
3778 if (ptr - start <= len)
3779 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
3782 if (res->native == MONO_NATIVE_BYVALARRAY) {
3783 if (ptr - start <= len)
3784 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
3787 if (res->native == MONO_NATIVE_CUSTOM) {
3788 /* skip unused type guid */
3789 len = mono_metadata_decode_value (ptr, &ptr);
3791 /* skip unused native type name */
3792 len = mono_metadata_decode_value (ptr, &ptr);
3794 /* read custom marshaler type name */
3795 len = mono_metadata_decode_value (ptr, &ptr);
3796 res->data.custom_data.custom_name = g_strndup (ptr, len);
3798 /* read cookie string */
3799 len = mono_metadata_decode_value (ptr, &ptr);
3800 res->data.custom_data.cookie = g_strndup (ptr, len);
3803 if (res->native == MONO_NATIVE_SAFEARRAY) {
3804 res->data.safearray_data.elem_type = 0;
3805 res->data.safearray_data.num_elem = 0;
3806 if (ptr - start <= len)
3807 res->data.safearray_data.elem_type = *ptr++;
3808 if (ptr - start <= len)
3809 res->data.safearray_data.num_elem = *ptr++;
3815 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
3817 if (spec->native == MONO_NATIVE_CUSTOM) {
3818 g_free (spec->data.custom_data.custom_name);
3819 g_free (spec->data.custom_data.cookie);
3825 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
3826 gboolean unicode, MonoMarshalConv *conv)
3828 MonoMarshalConv dummy_conv;
3834 *conv = MONO_MARSHAL_CONV_NONE;
3837 return MONO_NATIVE_UINT;
3841 case MONO_TYPE_BOOLEAN:
3843 switch (mspec->native) {
3844 case MONO_NATIVE_VARIANTBOOL:
3845 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
3846 return MONO_NATIVE_VARIANTBOOL;
3847 case MONO_NATIVE_BOOLEAN:
3848 *conv = MONO_MARSHAL_CONV_BOOL_I4;
3849 return MONO_NATIVE_BOOLEAN;
3850 case MONO_NATIVE_I1:
3851 case MONO_NATIVE_U1:
3852 return mspec->native;
3854 g_error ("cant marshal bool to native type %02x", mspec->native);
3857 *conv = MONO_MARSHAL_CONV_BOOL_I4;
3858 return MONO_NATIVE_BOOLEAN;
3859 case MONO_TYPE_CHAR: return MONO_NATIVE_U2;
3860 case MONO_TYPE_I1: return MONO_NATIVE_I1;
3861 case MONO_TYPE_U1: return MONO_NATIVE_U1;
3862 case MONO_TYPE_I2: return MONO_NATIVE_I2;
3863 case MONO_TYPE_U2: return MONO_NATIVE_U2;
3864 case MONO_TYPE_I4: return MONO_NATIVE_I4;
3865 case MONO_TYPE_U4: return MONO_NATIVE_U4;
3866 case MONO_TYPE_I8: return MONO_NATIVE_I8;
3867 case MONO_TYPE_U8: return MONO_NATIVE_U8;
3868 case MONO_TYPE_R4: return MONO_NATIVE_R4;
3869 case MONO_TYPE_R8: return MONO_NATIVE_R8;
3870 case MONO_TYPE_STRING:
3872 switch (mspec->native) {
3873 case MONO_NATIVE_BSTR:
3874 *conv = MONO_MARSHAL_CONV_STR_BSTR;
3875 return MONO_NATIVE_BSTR;
3876 case MONO_NATIVE_LPSTR:
3877 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
3878 return MONO_NATIVE_LPSTR;
3879 case MONO_NATIVE_LPWSTR:
3880 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
3881 return MONO_NATIVE_LPWSTR;
3882 case MONO_NATIVE_LPTSTR:
3883 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
3884 return MONO_NATIVE_LPTSTR;
3885 case MONO_NATIVE_ANSIBSTR:
3886 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
3887 return MONO_NATIVE_ANSIBSTR;
3888 case MONO_NATIVE_TBSTR:
3889 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
3890 return MONO_NATIVE_TBSTR;
3891 case MONO_NATIVE_BYVALTSTR:
3893 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
3895 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
3896 return MONO_NATIVE_BYVALTSTR;
3898 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);
3901 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
3902 return MONO_NATIVE_LPTSTR;
3903 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
3904 case MONO_TYPE_VALUETYPE: /*FIXME*/
3905 if (type->data.klass->enumtype) {
3906 t = type->data.klass->enum_basetype->type;
3909 return MONO_NATIVE_STRUCT;
3910 case MONO_TYPE_SZARRAY:
3911 case MONO_TYPE_ARRAY:
3913 switch (mspec->native) {
3914 case MONO_NATIVE_BYVALARRAY:
3915 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
3916 return MONO_NATIVE_BYVALARRAY;
3917 case MONO_NATIVE_SAFEARRAY:
3918 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
3919 return MONO_NATIVE_SAFEARRAY;
3920 case MONO_NATIVE_LPARRAY:
3921 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
3922 return MONO_NATIVE_LPARRAY;
3924 g_error ("cant marshal array as native type %02x", mspec->native);
3928 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
3929 return MONO_NATIVE_LPARRAY;
3930 case MONO_TYPE_I: return MONO_NATIVE_INT;
3931 case MONO_TYPE_U: return MONO_NATIVE_UINT;
3932 case MONO_TYPE_CLASS:
3933 case MONO_TYPE_OBJECT: {
3934 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
3936 switch (mspec->native) {
3937 case MONO_NATIVE_STRUCT:
3938 return MONO_NATIVE_STRUCT;
3939 case MONO_NATIVE_INTERFACE:
3940 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
3941 return MONO_NATIVE_INTERFACE;
3942 case MONO_NATIVE_IDISPATCH:
3943 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
3944 return MONO_NATIVE_IDISPATCH;
3945 case MONO_NATIVE_IUNKNOWN:
3946 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
3947 return MONO_NATIVE_IUNKNOWN;
3948 case MONO_NATIVE_FUNC:
3949 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
3950 type->data.klass == mono_defaults.delegate_class ||
3951 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
3952 *conv = MONO_MARSHAL_CONV_DEL_FTN;
3953 return MONO_NATIVE_FUNC;
3957 g_error ("cant marshal object as native type %02x", mspec->native);
3960 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
3961 type->data.klass == mono_defaults.delegate_class ||
3962 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
3963 *conv = MONO_MARSHAL_CONV_DEL_FTN;
3964 return MONO_NATIVE_FUNC;
3966 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
3967 return MONO_NATIVE_STRUCT;
3969 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
3970 case MONO_TYPE_GENERICINST:
3971 type = &type->data.generic_class->container_class->byval_arg;
3974 case MONO_TYPE_TYPEDBYREF:
3976 g_error ("type 0x%02x not handled in marshal", t);
3978 return MONO_NATIVE_MAX;
3982 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
3985 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
3991 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
3992 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
3994 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
3997 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
4001 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context)
4003 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
4004 switch (tok & MONO_METHODDEFORREF_MASK) {
4005 case MONO_METHODDEFORREF_METHODDEF:
4006 return mono_get_method_full (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context);
4007 case MONO_METHODDEFORREF_METHODREF:
4008 return mono_get_method_full (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context);
4010 g_assert_not_reached ();
4015 * mono_class_get_overrides_full:
4017 * Return the method overrides belonging to class @type_token in @overrides, and
4018 * the number of overrides in @num_overrides.
4020 * Returns: TRUE on success, FALSE on failure.
4023 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
4024 MonoGenericContext *generic_context)
4027 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
4030 guint32 cols [MONO_METHODIMPL_SIZE];
4031 MonoMethod **result;
4041 loc.col_idx = MONO_METHODIMPL_CLASS;
4042 loc.idx = mono_metadata_token_index (type_token);
4044 if (!bsearch (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4050 * We may end up in the middle of the rows...
4053 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
4058 while (end < tdef->rows) {
4059 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
4065 result = g_new (MonoMethod*, num * 2);
4066 for (i = 0; i < num; ++i) {
4067 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
4068 result [i * 2] = method_from_method_def_or_ref (
4069 image, cols [MONO_METHODIMPL_DECLARATION], generic_context);
4070 result [i * 2 + 1] = method_from_method_def_or_ref (
4071 image, cols [MONO_METHODIMPL_BODY], generic_context);
4074 *overrides = result;
4076 *num_overrides = num;
4081 * mono_guid_to_string:
4083 * Converts a 16 byte Microsoft GUID to the standard string representation.
4086 mono_guid_to_string (const guint8 *guid)
4088 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
4089 guid[3], guid[2], guid[1], guid[0],
4093 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
4097 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container)
4099 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
4100 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
4101 guint32 i, token, found;
4102 MonoClass *klass, **res;
4103 GList *cons = NULL, *tmp;
4104 MonoGenericContext *context = &container->context;
4106 g_assert (context->gclass || context->gmethod);
4108 *constraints = NULL;
4110 for (i = 0; i < tdef->rows; ++i) {
4111 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
4112 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
4113 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
4114 klass = mono_class_get_full (image, token, context);
4115 cons = g_list_append (cons, klass);
4118 /* contiguous list finished */
4125 res = g_new0 (MonoClass*, found + 1);
4126 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
4127 res [i] = tmp->data;
4135 * mono_metadata_get_generic_param_row:
4138 * @token: TypeOrMethodDef token, owner for GenericParam
4139 * @owner: coded token, set on return
4141 * Returns: 1-based row-id in the GenericParam table whose
4142 * owner is @token. 0 if not found.
4145 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
4147 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4148 guint32 cols [MONO_GENERICPARAM_SIZE];
4155 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
4156 *owner = MONO_TYPEORMETHOD_TYPE;
4157 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
4158 *owner = MONO_TYPEORMETHOD_METHOD;
4160 g_error ("wrong token %x to get_generic_param_row", token);
4163 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
4165 for (i = 0; i < tdef->rows; ++i) {
4166 mono_metadata_decode_row (tdef, i, cols, MONO_GENERICPARAM_SIZE);
4167 if (cols [MONO_GENERICPARAM_OWNER] == *owner)
4175 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
4178 return mono_metadata_get_generic_param_row (image, token, &owner);
4182 * mono_metadata_load_generic_param_constraints:
4184 * Load the generic parameter constraints for the newly created generic type or method
4185 * represented by @token and @container. The @container is the new container which has
4186 * been returned by a call to mono_metadata_load_generic_params() with this @token.
4189 mono_metadata_load_generic_param_constraints (MonoImage *image, guint32 token,
4190 MonoGenericContainer *container)
4192 guint32 start_row, i, owner;
4193 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
4195 for (i = 0; i < container->type_argc; i++)
4196 get_constraints (image, start_row + i, &container->type_params [i].constraints, container);
4200 * mono_metadata_load_generic_params:
4202 * Load the type parameters from the type or method definition @token.
4204 * Use this method after parsing a type or method definition to figure out whether it's a generic
4205 * type / method. When parsing a method definition, @parent_container points to the generic container
4206 * of the current class, if any.
4208 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
4209 * creating the type.
4211 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
4214 MonoGenericContainer *
4215 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
4217 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
4218 guint32 cols [MONO_GENERICPARAM_SIZE];
4219 guint32 i, owner = 0, n;
4220 MonoGenericContainer *container;
4221 MonoGenericParam *params;
4223 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
4225 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4228 container = g_new0 (MonoGenericContainer, 1);
4231 params = g_realloc (params, sizeof (MonoGenericParam) * n);
4232 params [n - 1].owner = container;
4233 params [n - 1].pklass = NULL;
4234 params [n - 1].method = NULL;
4235 params [n - 1].flags = cols [MONO_GENERICPARAM_FLAGS];
4236 params [n - 1].num = cols [MONO_GENERICPARAM_NUMBER];
4237 params [n - 1].name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
4238 params [n - 1].constraints = NULL;
4239 if (++i > tdef->rows)
4241 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
4242 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
4244 container->type_argc = n;
4245 container->type_params = params;
4246 container->parent = parent_container;
4248 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
4249 container->is_method = 1;
4251 container->context.container = container;
4257 mono_type_is_byref (MonoType *type)
4263 mono_type_get_type (MonoType *type)
4268 /* For MONO_TYPE_FNPTR */
4269 MonoMethodSignature*
4270 mono_type_get_signature (MonoType *type)
4272 return type->data.method;
4275 /* For MONO_TYPE_CLASS, VALUETYPE */
4277 mono_type_get_class (MonoType *type)
4279 return type->data.klass;
4282 /* For MONO_TYPE_ARRAY */
4284 mono_type_get_array_type (MonoType *type)
4286 return type->data.array;
4290 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
4292 /* FIXME: implement */
4297 mono_signature_get_return_type (MonoMethodSignature *sig)
4303 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
4309 /* start from the first */
4310 if (sig->param_count) {
4311 *iter = &sig->params [0];
4312 return sig->params [0];
4320 if (type < &sig->params [sig->param_count]) {
4328 mono_signature_get_param_count (MonoMethodSignature *sig)
4330 return sig->param_count;
4334 mono_signature_get_call_conv (MonoMethodSignature *sig)
4336 return sig->call_convention;
4340 mono_signature_vararg_start (MonoMethodSignature *sig)
4342 return sig->sentinelpos;
4346 mono_signature_is_instance (MonoMethodSignature *sig)
4348 return sig->hasthis;
4352 mono_signature_explicit_this (MonoMethodSignature *sig)
4354 return sig->explicit_this;
4357 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
4359 mono_aligned_addr_hash (gconstpointer ptr)
4361 return GPOINTER_TO_UINT (ptr) >> 3;