2 * metadata.c: Routines for accessing the metadata
5 * Miguel de Icaza (miguel@ximian.com)
6 * Paolo Molaro (lupus@ximian.com)
8 * Copyright 2001-2003 Ximian, Inc (http://www.ximian.com)
9 * Copyright 2004-2009 Novell, Inc (http://www.novell.com)
18 #include "tabledefs.h"
19 #include "mono-endian.h"
21 #include "tokentype.h"
22 #include "class-internals.h"
23 #include "metadata-internals.h"
24 #include "verify-internals.h"
27 #include "debug-helpers.h"
28 #include "abi-details.h"
29 #include <mono/utils/mono-error-internals.h>
30 #include <mono/utils/bsearch.h>
31 #include <mono/utils/atomic.h>
33 /* Auxiliary structure used for caching inflated signatures */
35 MonoMethodSignature *sig;
36 MonoGenericContext context;
37 } MonoInflatedMethodSignature;
39 static gboolean do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container, gboolean transient,
40 const char *ptr, const char **rptr, MonoError *error);
42 static gboolean do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only);
43 static gboolean mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only);
44 static gboolean mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only);
45 static gboolean _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2,
46 gboolean signature_only);
47 static void free_generic_inst (MonoGenericInst *ginst);
48 static void free_generic_class (MonoGenericClass *ginst);
49 static void free_inflated_method (MonoMethodInflated *method);
50 static void free_inflated_signature (MonoInflatedMethodSignature *sig);
51 static void mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva, MonoMarshalSpec **marshal_spec, gboolean alloc_from_image);
54 * This enumeration is used to describe the data types in the metadata
65 /* Index into Blob heap */
68 /* Index into String heap */
74 /* Pointer into a table */
77 /* HasConstant:Parent pointer (Param, Field or Property) */
80 /* HasCustomAttribute index. Indexes any table except CustomAttribute */
83 /* CustomAttributeType encoded index */
86 /* HasDeclSecurity index: TypeDef Method or Assembly */
89 /* Implementation coded index: File, Export AssemblyRef */
92 /* HasFieldMarshal coded index: Field or Param table */
95 /* MemberForwardedIndex: Field or Method */
98 /* TypeDefOrRef coded index: typedef, typeref, typespec */
101 /* MemberRefParent coded index: typeref, moduleref, method, memberref, typesepc, typedef */
104 /* MethodDefOrRef coded index: Method or Member Ref table */
107 /* HasSemantic coded index: Event or Property */
110 /* ResolutionScope coded index: Module, ModuleRef, AssemblytRef, TypeRef */
114 const static unsigned char TableSchemas [] = {
115 #define ASSEMBLY_SCHEMA_OFFSET 0
116 MONO_MT_UINT32, /* "HashId" }, */
117 MONO_MT_UINT16, /* "Major" }, */
118 MONO_MT_UINT16, /* "Minor" }, */
119 MONO_MT_UINT16, /* "BuildNumber" }, */
120 MONO_MT_UINT16, /* "RevisionNumber" }, */
121 MONO_MT_UINT32, /* "Flags" }, */
122 MONO_MT_BLOB_IDX, /* "PublicKey" }, */
123 MONO_MT_STRING_IDX, /* "Name" }, */
124 MONO_MT_STRING_IDX, /* "Culture" }, */
127 #define ASSEMBLYOS_SCHEMA_OFFSET ASSEMBLY_SCHEMA_OFFSET + 10
128 MONO_MT_UINT32, /* "OSPlatformID" }, */
129 MONO_MT_UINT32, /* "OSMajor" }, */
130 MONO_MT_UINT32, /* "OSMinor" }, */
133 #define ASSEMBLYPROC_SCHEMA_OFFSET ASSEMBLYOS_SCHEMA_OFFSET + 4
134 MONO_MT_UINT32, /* "Processor" }, */
137 #define ASSEMBLYREF_SCHEMA_OFFSET ASSEMBLYPROC_SCHEMA_OFFSET + 2
138 MONO_MT_UINT16, /* "Major" }, */
139 MONO_MT_UINT16, /* "Minor" }, */
140 MONO_MT_UINT16, /* "Build" }, */
141 MONO_MT_UINT16, /* "Revision" }, */
142 MONO_MT_UINT32, /* "Flags" }, */
143 MONO_MT_BLOB_IDX, /* "PublicKeyOrToken" }, */
144 MONO_MT_STRING_IDX, /* "Name" }, */
145 MONO_MT_STRING_IDX, /* "Culture" }, */
146 MONO_MT_BLOB_IDX, /* "HashValue" }, */
149 #define ASSEMBLYREFOS_SCHEMA_OFFSET ASSEMBLYREF_SCHEMA_OFFSET + 10
150 MONO_MT_UINT32, /* "OSPlatformID" }, */
151 MONO_MT_UINT32, /* "OSMajorVersion" }, */
152 MONO_MT_UINT32, /* "OSMinorVersion" }, */
153 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
156 #define ASSEMBLYREFPROC_SCHEMA_OFFSET ASSEMBLYREFOS_SCHEMA_OFFSET + 5
157 MONO_MT_UINT32, /* "Processor" }, */
158 MONO_MT_TABLE_IDX, /* "AssemblyRef:AssemblyRef" }, */
161 #define CLASS_LAYOUT_SCHEMA_OFFSET ASSEMBLYREFPROC_SCHEMA_OFFSET + 3
162 MONO_MT_UINT16, /* "PackingSize" }, */
163 MONO_MT_UINT32, /* "ClassSize" }, */
164 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
167 #define CONSTANT_SCHEMA_OFFSET CLASS_LAYOUT_SCHEMA_OFFSET + 4
168 MONO_MT_UINT8, /* "Type" }, */
169 MONO_MT_UINT8, /* "PaddingZero" }, */
170 MONO_MT_CONST_IDX, /* "Parent" }, */
171 MONO_MT_BLOB_IDX, /* "Value" }, */
174 #define CUSTOM_ATTR_SCHEMA_OFFSET CONSTANT_SCHEMA_OFFSET + 5
175 MONO_MT_HASCAT_IDX, /* "Parent" }, */
176 MONO_MT_CAT_IDX, /* "Type" }, */
177 MONO_MT_BLOB_IDX, /* "Value" }, */
180 #define DECL_SEC_SCHEMA_OFFSET CUSTOM_ATTR_SCHEMA_OFFSET + 4
181 MONO_MT_UINT16, /* "Action" }, */
182 MONO_MT_HASDEC_IDX, /* "Parent" }, */
183 MONO_MT_BLOB_IDX, /* "PermissionSet" }, */
186 #define EVENTMAP_SCHEMA_OFFSET DECL_SEC_SCHEMA_OFFSET + 4
187 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
188 MONO_MT_TABLE_IDX, /* "EventList:Event" }, */
191 #define EVENT_SCHEMA_OFFSET EVENTMAP_SCHEMA_OFFSET + 3
192 MONO_MT_UINT16, /* "EventFlags#EventAttribute" }, */
193 MONO_MT_STRING_IDX, /* "Name" }, */
194 MONO_MT_TDOR_IDX, /* "EventType" }, TypeDef or TypeRef or TypeSpec */
197 #define EVENT_POINTER_SCHEMA_OFFSET EVENT_SCHEMA_OFFSET + 4
198 MONO_MT_TABLE_IDX, /* "Event" }, */
201 #define EXPORTED_TYPE_SCHEMA_OFFSET EVENT_POINTER_SCHEMA_OFFSET + 2
202 MONO_MT_UINT32, /* "Flags" }, */
203 MONO_MT_TABLE_IDX, /* "TypeDefId" }, */
204 MONO_MT_STRING_IDX, /* "TypeName" }, */
205 MONO_MT_STRING_IDX, /* "TypeNameSpace" }, */
206 MONO_MT_IMPL_IDX, /* "Implementation" }, */
209 #define FIELD_SCHEMA_OFFSET EXPORTED_TYPE_SCHEMA_OFFSET + 6
210 MONO_MT_UINT16, /* "Flags" }, */
211 MONO_MT_STRING_IDX, /* "Name" }, */
212 MONO_MT_BLOB_IDX, /* "Signature" }, */
215 #define FIELD_LAYOUT_SCHEMA_OFFSET FIELD_SCHEMA_OFFSET + 4
216 MONO_MT_UINT32, /* "Offset" }, */
217 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
220 #define FIELD_MARSHAL_SCHEMA_OFFSET FIELD_LAYOUT_SCHEMA_OFFSET + 3
221 MONO_MT_HFM_IDX, /* "Parent" }, */
222 MONO_MT_BLOB_IDX, /* "NativeType" }, */
225 #define FIELD_RVA_SCHEMA_OFFSET FIELD_MARSHAL_SCHEMA_OFFSET + 3
226 MONO_MT_UINT32, /* "RVA" }, */
227 MONO_MT_TABLE_IDX, /* "Field:Field" }, */
230 #define FIELD_POINTER_SCHEMA_OFFSET FIELD_RVA_SCHEMA_OFFSET + 3
231 MONO_MT_TABLE_IDX, /* "Field" }, */
234 #define FILE_SCHEMA_OFFSET FIELD_POINTER_SCHEMA_OFFSET + 2
235 MONO_MT_UINT32, /* "Flags" }, */
236 MONO_MT_STRING_IDX, /* "Name" }, */
237 MONO_MT_BLOB_IDX, /* "Value" }, */
240 #define IMPLMAP_SCHEMA_OFFSET FILE_SCHEMA_OFFSET + 4
241 MONO_MT_UINT16, /* "MappingFlag" }, */
242 MONO_MT_MF_IDX, /* "MemberForwarded" }, */
243 MONO_MT_STRING_IDX, /* "ImportName" }, */
244 MONO_MT_TABLE_IDX, /* "ImportScope:ModuleRef" }, */
247 #define IFACEMAP_SCHEMA_OFFSET IMPLMAP_SCHEMA_OFFSET + 5
248 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
249 MONO_MT_TDOR_IDX, /* "Interface=TypeDefOrRef" }, */
252 #define MANIFEST_SCHEMA_OFFSET IFACEMAP_SCHEMA_OFFSET + 3
253 MONO_MT_UINT32, /* "Offset" }, */
254 MONO_MT_UINT32, /* "Flags" }, */
255 MONO_MT_STRING_IDX, /* "Name" }, */
256 MONO_MT_IMPL_IDX, /* "Implementation" }, */
259 #define MEMBERREF_SCHEMA_OFFSET MANIFEST_SCHEMA_OFFSET + 5
260 MONO_MT_MRP_IDX, /* "Class" }, */
261 MONO_MT_STRING_IDX, /* "Name" }, */
262 MONO_MT_BLOB_IDX, /* "Signature" }, */
265 #define METHOD_SCHEMA_OFFSET MEMBERREF_SCHEMA_OFFSET + 4
266 MONO_MT_UINT32, /* "RVA" }, */
267 MONO_MT_UINT16, /* "ImplFlags#MethodImplAttributes" }, */
268 MONO_MT_UINT16, /* "Flags#MethodAttribute" }, */
269 MONO_MT_STRING_IDX, /* "Name" }, */
270 MONO_MT_BLOB_IDX, /* "Signature" }, */
271 MONO_MT_TABLE_IDX, /* "ParamList:Param" }, */
274 #define METHOD_IMPL_SCHEMA_OFFSET METHOD_SCHEMA_OFFSET + 7
275 MONO_MT_TABLE_IDX, /* "Class:TypeDef" }, */
276 MONO_MT_MDOR_IDX, /* "MethodBody" }, */
277 MONO_MT_MDOR_IDX, /* "MethodDeclaration" }, */
280 #define METHOD_SEMA_SCHEMA_OFFSET METHOD_IMPL_SCHEMA_OFFSET + 4
281 MONO_MT_UINT16, /* "MethodSemantic" }, */
282 MONO_MT_TABLE_IDX, /* "Method:Method" }, */
283 MONO_MT_HS_IDX, /* "Association" }, */
286 #define METHOD_POINTER_SCHEMA_OFFSET METHOD_SEMA_SCHEMA_OFFSET + 4
287 MONO_MT_TABLE_IDX, /* "Method" }, */
290 #define MODULE_SCHEMA_OFFSET METHOD_POINTER_SCHEMA_OFFSET + 2
291 MONO_MT_UINT16, /* "Generation" }, */
292 MONO_MT_STRING_IDX, /* "Name" }, */
293 MONO_MT_GUID_IDX, /* "MVID" }, */
294 MONO_MT_GUID_IDX, /* "EncID" }, */
295 MONO_MT_GUID_IDX, /* "EncBaseID" }, */
298 #define MODULEREF_SCHEMA_OFFSET MODULE_SCHEMA_OFFSET + 6
299 MONO_MT_STRING_IDX, /* "Name" }, */
302 #define NESTED_CLASS_SCHEMA_OFFSET MODULEREF_SCHEMA_OFFSET + 2
303 MONO_MT_TABLE_IDX, /* "NestedClass:TypeDef" }, */
304 MONO_MT_TABLE_IDX, /* "EnclosingClass:TypeDef" }, */
307 #define PARAM_SCHEMA_OFFSET NESTED_CLASS_SCHEMA_OFFSET + 3
308 MONO_MT_UINT16, /* "Flags" }, */
309 MONO_MT_UINT16, /* "Sequence" }, */
310 MONO_MT_STRING_IDX, /* "Name" }, */
313 #define PARAM_POINTER_SCHEMA_OFFSET PARAM_SCHEMA_OFFSET + 4
314 MONO_MT_TABLE_IDX, /* "Param" }, */
317 #define PROPERTY_SCHEMA_OFFSET PARAM_POINTER_SCHEMA_OFFSET + 2
318 MONO_MT_UINT16, /* "Flags" }, */
319 MONO_MT_STRING_IDX, /* "Name" }, */
320 MONO_MT_BLOB_IDX, /* "Type" }, */
323 #define PROPERTY_POINTER_SCHEMA_OFFSET PROPERTY_SCHEMA_OFFSET + 4
324 MONO_MT_TABLE_IDX, /* "Property" }, */
327 #define PROPERTY_MAP_SCHEMA_OFFSET PROPERTY_POINTER_SCHEMA_OFFSET + 2
328 MONO_MT_TABLE_IDX, /* "Parent:TypeDef" }, */
329 MONO_MT_TABLE_IDX, /* "PropertyList:Property" }, */
332 #define STDALON_SIG_SCHEMA_OFFSET PROPERTY_MAP_SCHEMA_OFFSET + 3
333 MONO_MT_BLOB_IDX, /* "Signature" }, */
336 #define TYPEDEF_SCHEMA_OFFSET STDALON_SIG_SCHEMA_OFFSET + 2
337 MONO_MT_UINT32, /* "Flags" }, */
338 MONO_MT_STRING_IDX, /* "Name" }, */
339 MONO_MT_STRING_IDX, /* "Namespace" }, */
340 MONO_MT_TDOR_IDX, /* "Extends" }, */
341 MONO_MT_TABLE_IDX, /* "FieldList:Field" }, */
342 MONO_MT_TABLE_IDX, /* "MethodList:Method" }, */
345 #define TYPEREF_SCHEMA_OFFSET TYPEDEF_SCHEMA_OFFSET + 7
346 MONO_MT_RS_IDX, /* "ResolutionScope=ResolutionScope" }, */
347 MONO_MT_STRING_IDX, /* "Name" }, */
348 MONO_MT_STRING_IDX, /* "Namespace" }, */
351 #define TYPESPEC_SCHEMA_OFFSET TYPEREF_SCHEMA_OFFSET + 4
352 MONO_MT_BLOB_IDX, /* "Signature" }, */
355 #define GENPARAM_SCHEMA_OFFSET TYPESPEC_SCHEMA_OFFSET + 2
356 MONO_MT_UINT16, /* "Number" }, */
357 MONO_MT_UINT16, /* "Flags" }, */
358 MONO_MT_TABLE_IDX, /* "Owner" }, TypeDef or MethodDef */
359 MONO_MT_STRING_IDX, /* "Name" }, */
362 #define METHOD_SPEC_SCHEMA_OFFSET GENPARAM_SCHEMA_OFFSET + 5
363 MONO_MT_MDOR_IDX, /* "Method" }, */
364 MONO_MT_BLOB_IDX, /* "Signature" }, */
367 #define GEN_CONSTRAINT_SCHEMA_OFFSET METHOD_SPEC_SCHEMA_OFFSET + 3
368 MONO_MT_TABLE_IDX, /* "GenericParam" }, */
369 MONO_MT_TDOR_IDX, /* "Constraint" }, */
372 #define DOCUMENT_SCHEMA_OFFSET GEN_CONSTRAINT_SCHEMA_OFFSET + 3
373 MONO_MT_BLOB_IDX, /* Name */
374 MONO_MT_GUID_IDX, /* HashAlgorithm */
375 MONO_MT_BLOB_IDX, /* Hash */
376 MONO_MT_GUID_IDX, /* Language */
379 #define METHODBODY_SCHEMA_OFFSET DOCUMENT_SCHEMA_OFFSET + 5
380 MONO_MT_TABLE_IDX, /* Document */
381 MONO_MT_BLOB_IDX, /* SequencePoints */
384 #define LOCALSCOPE_SCHEMA_OFFSET METHODBODY_SCHEMA_OFFSET + 3
385 MONO_MT_TABLE_IDX, /* Method */
386 MONO_MT_TABLE_IDX, /* ImportScope */
387 MONO_MT_TABLE_IDX, /* VariableList */
388 MONO_MT_TABLE_IDX, /* ConstantList */
389 MONO_MT_UINT32, /* StartOffset */
390 MONO_MT_UINT32, /* Length */
393 #define LOCALVARIABLE_SCHEMA_OFFSET LOCALSCOPE_SCHEMA_OFFSET + 7
394 MONO_MT_UINT16, /* Attributes */
395 MONO_MT_UINT16, /* Index */
396 MONO_MT_STRING_IDX, /* Name */
399 #define NULL_SCHEMA_OFFSET LOCALVARIABLE_SCHEMA_OFFSET + 4
403 /* Must be the same order as MONO_TABLE_* */
404 const static unsigned char
405 table_description [] = {
406 MODULE_SCHEMA_OFFSET,
407 TYPEREF_SCHEMA_OFFSET,
408 TYPEDEF_SCHEMA_OFFSET,
409 FIELD_POINTER_SCHEMA_OFFSET,
411 METHOD_POINTER_SCHEMA_OFFSET,
412 METHOD_SCHEMA_OFFSET,
413 PARAM_POINTER_SCHEMA_OFFSET,
415 IFACEMAP_SCHEMA_OFFSET,
416 MEMBERREF_SCHEMA_OFFSET, /* 0xa */
417 CONSTANT_SCHEMA_OFFSET,
418 CUSTOM_ATTR_SCHEMA_OFFSET,
419 FIELD_MARSHAL_SCHEMA_OFFSET,
420 DECL_SEC_SCHEMA_OFFSET,
421 CLASS_LAYOUT_SCHEMA_OFFSET,
422 FIELD_LAYOUT_SCHEMA_OFFSET, /* 0x10 */
423 STDALON_SIG_SCHEMA_OFFSET,
424 EVENTMAP_SCHEMA_OFFSET,
425 EVENT_POINTER_SCHEMA_OFFSET,
427 PROPERTY_MAP_SCHEMA_OFFSET,
428 PROPERTY_POINTER_SCHEMA_OFFSET,
429 PROPERTY_SCHEMA_OFFSET,
430 METHOD_SEMA_SCHEMA_OFFSET,
431 METHOD_IMPL_SCHEMA_OFFSET,
432 MODULEREF_SCHEMA_OFFSET, /* 0x1a */
433 TYPESPEC_SCHEMA_OFFSET,
434 IMPLMAP_SCHEMA_OFFSET,
435 FIELD_RVA_SCHEMA_OFFSET,
438 ASSEMBLY_SCHEMA_OFFSET, /* 0x20 */
439 ASSEMBLYPROC_SCHEMA_OFFSET,
440 ASSEMBLYOS_SCHEMA_OFFSET,
441 ASSEMBLYREF_SCHEMA_OFFSET,
442 ASSEMBLYREFPROC_SCHEMA_OFFSET,
443 ASSEMBLYREFOS_SCHEMA_OFFSET,
445 EXPORTED_TYPE_SCHEMA_OFFSET,
446 MANIFEST_SCHEMA_OFFSET,
447 NESTED_CLASS_SCHEMA_OFFSET,
448 GENPARAM_SCHEMA_OFFSET, /* 0x2a */
449 METHOD_SPEC_SCHEMA_OFFSET,
450 GEN_CONSTRAINT_SCHEMA_OFFSET,
454 DOCUMENT_SCHEMA_OFFSET, /* 0x30 */
455 METHODBODY_SCHEMA_OFFSET,
456 LOCALSCOPE_SCHEMA_OFFSET,
457 LOCALVARIABLE_SCHEMA_OFFSET
460 #ifdef HAVE_ARRAY_ELEM_INIT
461 #define MSGSTRFIELD(line) MSGSTRFIELD1(line)
462 #define MSGSTRFIELD1(line) str##line
463 static const struct msgstr_t {
464 #define TABLEDEF(a,b) char MSGSTRFIELD(__LINE__) [sizeof (b)];
465 #include "mono/cil/tables.def"
468 #define TABLEDEF(a,b) b,
469 #include "mono/cil/tables.def"
472 static const gint16 tableidx [] = {
473 #define TABLEDEF(a,b) [a] = offsetof (struct msgstr_t, MSGSTRFIELD(__LINE__)),
474 #include "mono/cil/tables.def"
479 #define TABLEDEF(a,b) b,
480 static const char* const
481 mono_tables_names [] = {
482 #include "mono/cil/tables.def"
488 // Amount initially reserved in each imageset's mempool.
489 // FIXME: This number is arbitrary, a more practical number should be found
490 #define INITIAL_IMAGE_SET_SIZE 1024
493 * mono_meta_table_name:
494 * @table: table index
496 * Returns the name of the given ECMA metadata logical format table
497 * as described in ECMA 335, Partition II, Section 22.
499 * Returns: the name for the @table index
502 mono_meta_table_name (int table)
504 if ((table < 0) || (table > MONO_TABLE_LAST))
507 #ifdef HAVE_ARRAY_ELEM_INIT
508 return (const char*)&tablestr + tableidx [table];
510 return mono_tables_names [table];
514 /* The guy who wrote the spec for this should not be allowed near a
517 If e is a coded token(see clause 23.1.7) that points into table ti out of n possible tables t0, .. tn-1,
518 then it is stored as e << (log n) & tag{ t0, .. tn-1}[ ti] using 2 bytes if the maximum number of
519 rows of tables t0, ..tn-1, is less than 2^16 - (log n), and using 4 bytes otherwise. The family of
520 finite maps tag{ t0, ..tn-1} is defined below. Note that to decode a physical row, you need the
521 inverse of this mapping.
524 #define rtsize(meta,s,b) (((s) < (1 << (b)) ? 2 : 4))
525 #define idx_size(meta,tableidx) ((meta)->tables [(tableidx)].rows < 65536 ? 2 : 4)
527 /* Reference: Partition II - 23.2.6 */
529 * mono_metadata_compute_size:
530 * @meta: metadata context
531 * @tableindex: metadata table number
532 * @result_bitfield: pointer to guint32 where to store additional info
534 * mono_metadata_compute_size() computes the lenght in bytes of a single
535 * row in a metadata table. The size of each column is encoded in the
536 * @result_bitfield return value along with the number of columns in the table.
537 * the resulting bitfield should be handed to the mono_metadata_table_size()
538 * and mono_metadata_table_count() macros.
539 * This is a Mono runtime internal only function.
542 mono_metadata_compute_size (MonoImage *meta, int tableindex, guint32 *result_bitfield)
544 guint32 bitfield = 0;
545 int size = 0, field_size = 0;
548 const unsigned char *description = TableSchemas + table_description [tableindex];
550 for (i = 0; (code = description [i]) != MONO_MT_END; i++){
553 field_size = 4; break;
556 field_size = 2; break;
559 field_size = 1; break;
561 case MONO_MT_BLOB_IDX:
562 field_size = meta->idx_blob_wide ? 4 : 2; break;
564 case MONO_MT_STRING_IDX:
565 field_size = meta->idx_string_wide ? 4 : 2; break;
567 case MONO_MT_GUID_IDX:
568 field_size = meta->idx_guid_wide ? 4 : 2; break;
570 case MONO_MT_TABLE_IDX:
571 /* Uhm, a table index can point to other tables besides the current one
572 * so, it's not correct to use the rowcount of the current table to
573 * get the size for this column - lupus
575 switch (tableindex) {
576 case MONO_TABLE_ASSEMBLYREFOS:
578 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
579 case MONO_TABLE_ASSEMBLYREFPROCESSOR:
581 field_size = idx_size (meta, MONO_TABLE_ASSEMBLYREF); break;
582 case MONO_TABLE_CLASSLAYOUT:
584 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
585 case MONO_TABLE_EVENTMAP:
586 g_assert (i == 0 || i == 1);
587 field_size = i ? idx_size (meta, MONO_TABLE_EVENT):
588 idx_size (meta, MONO_TABLE_TYPEDEF);
590 case MONO_TABLE_EVENT_POINTER:
592 field_size = idx_size (meta, MONO_TABLE_EVENT); break;
593 case MONO_TABLE_EXPORTEDTYPE:
595 /* the index is in another metadata file, so it must be 4 */
596 field_size = 4; break;
597 case MONO_TABLE_FIELDLAYOUT:
599 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
600 case MONO_TABLE_FIELDRVA:
602 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
603 case MONO_TABLE_FIELD_POINTER:
605 field_size = idx_size (meta, MONO_TABLE_FIELD); break;
606 case MONO_TABLE_IMPLMAP:
608 field_size = idx_size (meta, MONO_TABLE_MODULEREF); break;
609 case MONO_TABLE_INTERFACEIMPL:
611 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
612 case MONO_TABLE_METHOD:
614 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
615 case MONO_TABLE_METHODIMPL:
617 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
618 case MONO_TABLE_METHODSEMANTICS:
620 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
621 case MONO_TABLE_METHOD_POINTER:
623 field_size = idx_size (meta, MONO_TABLE_METHOD); break;
624 case MONO_TABLE_NESTEDCLASS:
625 g_assert (i == 0 || i == 1);
626 field_size = idx_size (meta, MONO_TABLE_TYPEDEF); break;
627 case MONO_TABLE_PARAM_POINTER:
629 field_size = idx_size (meta, MONO_TABLE_PARAM); break;
630 case MONO_TABLE_PROPERTYMAP:
631 g_assert (i == 0 || i == 1);
632 field_size = i ? idx_size (meta, MONO_TABLE_PROPERTY):
633 idx_size (meta, MONO_TABLE_TYPEDEF);
635 case MONO_TABLE_PROPERTY_POINTER:
637 field_size = idx_size (meta, MONO_TABLE_PROPERTY); break;
638 case MONO_TABLE_TYPEDEF:
639 g_assert (i == 4 || i == 5);
640 field_size = i == 4 ? idx_size (meta, MONO_TABLE_FIELD):
641 idx_size (meta, MONO_TABLE_METHOD);
643 case MONO_TABLE_GENERICPARAM:
645 n = MAX (meta->tables [MONO_TABLE_METHOD].rows, meta->tables [MONO_TABLE_TYPEDEF].rows);
646 /*This is a coded token for 2 tables, so takes 1 bit */
647 field_size = rtsize (meta, n, 16 - MONO_TYPEORMETHOD_BITS);
649 case MONO_TABLE_GENERICPARAMCONSTRAINT:
651 field_size = idx_size (meta, MONO_TABLE_GENERICPARAM);
653 case MONO_TABLE_LOCALSCOPE:
656 // FIXME: This table is in another file
657 field_size = idx_size (meta, MONO_TABLE_METHOD);
660 field_size = idx_size (meta, MONO_TABLE_IMPORTSCOPE);
663 field_size = idx_size (meta, MONO_TABLE_LOCALVARIABLE);
666 field_size = idx_size (meta, MONO_TABLE_LOCALCONSTANT);
669 g_assert_not_reached ();
673 case MONO_TABLE_METHODBODY:
675 field_size = idx_size (meta, MONO_TABLE_DOCUMENT);
678 g_error ("Can't handle MONO_MT_TABLE_IDX for table %d element %d", tableindex, i);
683 * HasConstant: ParamDef, FieldDef, Property
685 case MONO_MT_CONST_IDX:
686 n = MAX (meta->tables [MONO_TABLE_PARAM].rows,
687 meta->tables [MONO_TABLE_FIELD].rows);
688 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
690 /* 2 bits to encode tag */
691 field_size = rtsize (meta, n, 16-2);
695 * HasCustomAttribute: points to any table but
698 case MONO_MT_HASCAT_IDX:
700 * We believe that since the signature and
701 * permission are indexing the Blob heap,
702 * we should consider the blob size first
704 /* I'm not a believer - lupus
705 if (meta->idx_blob_wide){
710 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
711 meta->tables [MONO_TABLE_FIELD].rows);
712 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
713 n = MAX (n, meta->tables [MONO_TABLE_TYPEDEF].rows);
714 n = MAX (n, meta->tables [MONO_TABLE_PARAM].rows);
715 n = MAX (n, meta->tables [MONO_TABLE_INTERFACEIMPL].rows);
716 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
717 n = MAX (n, meta->tables [MONO_TABLE_MODULE].rows);
718 n = MAX (n, meta->tables [MONO_TABLE_DECLSECURITY].rows);
719 n = MAX (n, meta->tables [MONO_TABLE_PROPERTY].rows);
720 n = MAX (n, meta->tables [MONO_TABLE_EVENT].rows);
721 n = MAX (n, meta->tables [MONO_TABLE_STANDALONESIG].rows);
722 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
723 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
724 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
725 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
726 n = MAX (n, meta->tables [MONO_TABLE_FILE].rows);
727 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
728 n = MAX (n, meta->tables [MONO_TABLE_MANIFESTRESOURCE].rows);
730 /* 5 bits to encode */
731 field_size = rtsize (meta, n, 16-5);
735 * CustomAttributeType: TypeDef, TypeRef, MethodDef,
736 * MemberRef and String.
738 case MONO_MT_CAT_IDX:
739 /* String is a heap, if it is wide, we know the size */
741 if (meta->idx_string_wide){
746 n = MAX (meta->tables [MONO_TABLE_TYPEREF].rows,
747 meta->tables [MONO_TABLE_TYPEDEF].rows);
748 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
749 n = MAX (n, meta->tables [MONO_TABLE_MEMBERREF].rows);
751 /* 3 bits to encode */
752 field_size = rtsize (meta, n, 16-3);
756 * HasDeclSecurity: Typedef, MethodDef, Assembly
758 case MONO_MT_HASDEC_IDX:
759 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
760 meta->tables [MONO_TABLE_METHOD].rows);
761 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLY].rows);
763 /* 2 bits to encode */
764 field_size = rtsize (meta, n, 16-2);
768 * Implementation: File, AssemblyRef, ExportedType
770 case MONO_MT_IMPL_IDX:
771 n = MAX (meta->tables [MONO_TABLE_FILE].rows,
772 meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
773 n = MAX (n, meta->tables [MONO_TABLE_EXPORTEDTYPE].rows);
775 /* 2 bits to encode tag */
776 field_size = rtsize (meta, n, 16-2);
780 * HasFieldMarshall: FieldDef, ParamDef
782 case MONO_MT_HFM_IDX:
783 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
784 meta->tables [MONO_TABLE_PARAM].rows);
786 /* 1 bit used to encode tag */
787 field_size = rtsize (meta, n, 16-1);
791 * MemberForwarded: FieldDef, MethodDef
794 n = MAX (meta->tables [MONO_TABLE_FIELD].rows,
795 meta->tables [MONO_TABLE_METHOD].rows);
797 /* 1 bit used to encode tag */
798 field_size = rtsize (meta, n, 16-1);
802 * TypeDefOrRef: TypeDef, ParamDef, TypeSpec
804 * It is TypeDef, _TypeRef_, TypeSpec, instead.
806 case MONO_MT_TDOR_IDX:
807 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
808 meta->tables [MONO_TABLE_TYPEREF].rows);
809 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
811 /* 2 bits to encode */
812 field_size = rtsize (meta, n, 16-2);
816 * MemberRefParent: TypeDef, TypeRef, MethodDef, ModuleRef, TypeSpec, MemberRef
818 case MONO_MT_MRP_IDX:
819 n = MAX (meta->tables [MONO_TABLE_TYPEDEF].rows,
820 meta->tables [MONO_TABLE_TYPEREF].rows);
821 n = MAX (n, meta->tables [MONO_TABLE_METHOD].rows);
822 n = MAX (n, meta->tables [MONO_TABLE_MODULEREF].rows);
823 n = MAX (n, meta->tables [MONO_TABLE_TYPESPEC].rows);
825 /* 3 bits to encode */
826 field_size = rtsize (meta, n, 16 - 3);
830 * MethodDefOrRef: MethodDef, MemberRef
832 case MONO_MT_MDOR_IDX:
833 n = MAX (meta->tables [MONO_TABLE_METHOD].rows,
834 meta->tables [MONO_TABLE_MEMBERREF].rows);
836 /* 1 bit used to encode tag */
837 field_size = rtsize (meta, n, 16-1);
841 * HasSemantics: Property, Event
844 n = MAX (meta->tables [MONO_TABLE_PROPERTY].rows,
845 meta->tables [MONO_TABLE_EVENT].rows);
847 /* 1 bit used to encode tag */
848 field_size = rtsize (meta, n, 16-1);
852 * ResolutionScope: Module, ModuleRef, AssemblyRef, TypeRef
855 n = MAX (meta->tables [MONO_TABLE_MODULE].rows,
856 meta->tables [MONO_TABLE_MODULEREF].rows);
857 n = MAX (n, meta->tables [MONO_TABLE_ASSEMBLYREF].rows);
858 n = MAX (n, meta->tables [MONO_TABLE_TYPEREF].rows);
860 /* 2 bits used to encode tag (ECMA spec claims 3) */
861 field_size = rtsize (meta, n, 16 - 2);
866 * encode field size as follows (we just need to
873 bitfield |= (field_size-1) << shift;
876 /*g_print ("table %02x field %d size %d\n", tableindex, i, field_size);*/
879 *result_bitfield = (i << 24) | bitfield;
884 * mono_metadata_compute_table_bases:
885 * @meta: metadata context to compute table values
887 * Computes the table bases for the metadata structure.
888 * This is an internal function used by the image loader code.
891 mono_metadata_compute_table_bases (MonoImage *meta)
894 const char *base = meta->tables_base;
896 for (i = 0; i < MONO_TABLE_NUM; i++) {
897 MonoTableInfo *table = &meta->tables [i];
898 if (table->rows == 0)
901 table->row_size = mono_metadata_compute_size (meta, i, &table->size_bitfield);
903 base += table->rows * table->row_size;
908 * mono_metadata_locate:
909 * @meta: metadata context
910 * @table: table code.
911 * @idx: index of element to retrieve from @table.
913 * Returns: a pointer to the @idx element in the metadata table
914 * whose code is @table.
917 mono_metadata_locate (MonoImage *meta, int table, int idx)
919 /* idx == 0 refers always to NULL */
920 g_return_val_if_fail (idx > 0 && idx <= meta->tables [table].rows, ""); /*FIXME shouldn't we return NULL here?*/
922 return meta->tables [table].base + (meta->tables [table].row_size * (idx - 1));
926 * mono_metadata_locate_token:
927 * @meta: metadata context
928 * @token: metadata token
930 * Returns: a pointer to the data in the metadata represented by the
934 mono_metadata_locate_token (MonoImage *meta, guint32 token)
936 return mono_metadata_locate (meta, token >> 24, token & 0xffffff);
940 * mono_metadata_string_heap:
941 * @meta: metadata context
942 * @index: index into the string heap.
944 * Returns: an in-memory pointer to the @index in the string heap.
947 mono_metadata_string_heap (MonoImage *meta, guint32 index)
949 g_assert (index < meta->heap_strings.size);
950 g_return_val_if_fail (index < meta->heap_strings.size, "");
951 return meta->heap_strings.data + index;
955 * mono_metadata_user_string:
956 * @meta: metadata context
957 * @index: index into the user string heap.
959 * Returns: an in-memory pointer to the @index in the user string heap ("#US").
962 mono_metadata_user_string (MonoImage *meta, guint32 index)
964 g_assert (index < meta->heap_us.size);
965 g_return_val_if_fail (index < meta->heap_us.size, "");
966 return meta->heap_us.data + index;
970 * mono_metadata_blob_heap:
971 * @meta: metadata context
972 * @index: index into the blob.
974 * Returns: an in-memory pointer to the @index in the Blob heap.
977 mono_metadata_blob_heap (MonoImage *meta, guint32 index)
979 g_assert (index < meta->heap_blob.size);
980 g_return_val_if_fail (index < meta->heap_blob.size, "");/*FIXME shouldn't we return NULL and check for index == 0?*/
981 return meta->heap_blob.data + index;
985 * mono_metadata_guid_heap:
986 * @meta: metadata context
987 * @index: index into the guid heap.
989 * Returns: an in-memory pointer to the @index in the guid heap.
992 mono_metadata_guid_heap (MonoImage *meta, guint32 index)
995 index *= 16; /* adjust for guid size and 1-based index */
996 g_return_val_if_fail (index < meta->heap_guid.size, "");
997 return meta->heap_guid.data + index;
1000 static const unsigned char *
1001 dword_align (const unsigned char *ptr)
1003 #if SIZEOF_VOID_P == 8
1004 return (const unsigned char *) (((guint64) (ptr + 3)) & ~3);
1006 return (const unsigned char *) (((guint32) (ptr + 3)) & ~3);
1011 * mono_metadata_decode_row:
1012 * @t: table to extract information from.
1013 * @idx: index in table.
1014 * @res: array of @res_size cols to store the results in
1016 * This decompresses the metadata element @idx in table @t
1017 * into the guint32 @res array that has res_size elements
1020 mono_metadata_decode_row (const MonoTableInfo *t, int idx, guint32 *res, int res_size)
1022 guint32 bitfield = t->size_bitfield;
1023 int i, count = mono_metadata_table_count (bitfield);
1026 g_assert (idx < t->rows);
1027 g_assert (idx >= 0);
1028 data = t->base + idx * t->row_size;
1030 g_assert (res_size == count);
1032 for (i = 0; i < count; i++) {
1033 int n = mono_metadata_table_size (bitfield, i);
1037 res [i] = *data; break;
1039 res [i] = read16 (data); break;
1041 res [i] = read32 (data); break;
1043 g_assert_not_reached ();
1050 * mono_metadata_decode_row_col:
1051 * @t: table to extract information from.
1052 * @idx: index for row in table.
1053 * @col: column in the row.
1055 * This function returns the value of column @col from the @idx
1056 * row in the table @t.
1059 mono_metadata_decode_row_col (const MonoTableInfo *t, int idx, guint col)
1061 guint32 bitfield = t->size_bitfield;
1063 register const char *data;
1066 g_assert (idx < t->rows);
1067 g_assert (col < mono_metadata_table_count (bitfield));
1068 data = t->base + idx * t->row_size;
1070 n = mono_metadata_table_size (bitfield, 0);
1071 for (i = 0; i < col; ++i) {
1073 n = mono_metadata_table_size (bitfield, i + 1);
1079 return read16 (data);
1081 return read32 (data);
1083 g_assert_not_reached ();
1089 * mono_metadata_decode_blob_size:
1090 * @ptr: pointer to a blob object
1091 * @rptr: the new position of the pointer
1093 * This decodes a compressed size as described by 23.1.4 (a blob or user string object)
1095 * Returns: the size of the blob object
1098 mono_metadata_decode_blob_size (const char *xptr, const char **rptr)
1100 const unsigned char *ptr = (const unsigned char *)xptr;
1103 if ((*ptr & 0x80) == 0){
1104 size = ptr [0] & 0x7f;
1106 } else if ((*ptr & 0x40) == 0){
1107 size = ((ptr [0] & 0x3f) << 8) + ptr [1];
1110 size = ((ptr [0] & 0x1f) << 24) +
1122 * mono_metadata_decode_value:
1123 * @ptr: pointer to decode from
1124 * @rptr: the new position of the pointer
1126 * This routine decompresses 32-bit values as specified in the "Blob and
1127 * Signature" section (22.2)
1129 * Returns: the decoded value
1132 mono_metadata_decode_value (const char *_ptr, const char **rptr)
1134 const unsigned char *ptr = (const unsigned char *) _ptr;
1135 unsigned char b = *ptr;
1138 if ((b & 0x80) == 0){
1141 } else if ((b & 0x40) == 0){
1142 len = ((b & 0x3f) << 8 | ptr [1]);
1145 len = ((b & 0x1f) << 24) |
1158 * mono_metadata_decode_signed_value:
1159 * @ptr: pointer to decode from
1160 * @rptr: the new position of the pointer
1162 * This routine decompresses 32-bit signed values
1163 * (not specified in the spec)
1165 * Returns: the decoded value
1168 mono_metadata_decode_signed_value (const char *ptr, const char **rptr)
1170 guint32 uval = mono_metadata_decode_value (ptr, rptr);
1171 gint32 ival = uval >> 1;
1174 /* ival is a truncated 2's complement negative number. */
1176 /* 6 bits = 7 bits for compressed representation (top bit is '0') - 1 sign bit */
1179 /* 13 bits = 14 bits for compressed representation (top bits are '10') - 1 sign bit */
1180 return ival - 0x2000;
1181 if (ival < 0x10000000)
1182 /* 28 bits = 29 bits for compressed representation (top bits are '110') - 1 sign bit */
1183 return ival - 0x10000000;
1184 g_assert (ival < 0x20000000);
1185 g_warning ("compressed signed value appears to use 29 bits for compressed representation: %x (raw: %8x)", ival, uval);
1186 return ival - 0x20000000;
1190 * Translates the given 1-based index into the Method, Field, Event, or Param tables
1191 * using the *Ptr tables in uncompressed metadata, if they are available.
1193 * FIXME: The caller is not forced to call this function, which is error-prone, since
1194 * forgetting to call it would only show up as a bug on uncompressed metadata.
1197 mono_metadata_translate_token_index (MonoImage *image, int table, guint32 idx)
1199 if (!image->uncompressed_metadata)
1203 case MONO_TABLE_METHOD:
1204 if (image->tables [MONO_TABLE_METHOD_POINTER].rows)
1205 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_METHOD_POINTER], idx - 1, MONO_METHOD_POINTER_METHOD);
1208 case MONO_TABLE_FIELD:
1209 if (image->tables [MONO_TABLE_FIELD_POINTER].rows)
1210 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_FIELD_POINTER], idx - 1, MONO_FIELD_POINTER_FIELD);
1213 case MONO_TABLE_EVENT:
1214 if (image->tables [MONO_TABLE_EVENT_POINTER].rows)
1215 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_EVENT_POINTER], idx - 1, MONO_EVENT_POINTER_EVENT);
1218 case MONO_TABLE_PROPERTY:
1219 if (image->tables [MONO_TABLE_PROPERTY_POINTER].rows)
1220 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PROPERTY_POINTER], idx - 1, MONO_PROPERTY_POINTER_PROPERTY);
1223 case MONO_TABLE_PARAM:
1224 if (image->tables [MONO_TABLE_PARAM_POINTER].rows)
1225 return mono_metadata_decode_row_col (&image->tables [MONO_TABLE_PARAM_POINTER], idx - 1, MONO_PARAM_POINTER_PARAM);
1234 * mono_metadata_decode_table_row:
1236 * Same as mono_metadata_decode_row, but takes an IMAGE+TABLE ID pair, and takes
1237 * uncompressed metadata into account, so it should be used to access the
1238 * Method, Field, Param and Event tables when the access is made from metadata, i.e.
1239 * IDX is retrieved from a metadata table, like MONO_TYPEDEF_FIELD_LIST.
1242 mono_metadata_decode_table_row (MonoImage *image, int table, int idx, guint32 *res, int res_size)
1244 if (image->uncompressed_metadata)
1245 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1247 mono_metadata_decode_row (&image->tables [table], idx, res, res_size);
1251 * mono_metadata_decode_table_row_col:
1253 * Same as mono_metadata_decode_row_col, but takes an IMAGE+TABLE ID pair, and takes
1254 * uncompressed metadata into account, so it should be used to access the
1255 * Method, Field, Param and Event tables.
1257 guint32 mono_metadata_decode_table_row_col (MonoImage *image, int table, int idx, guint col)
1259 if (image->uncompressed_metadata)
1260 idx = mono_metadata_translate_token_index (image, table, idx + 1) - 1;
1262 return mono_metadata_decode_row_col (&image->tables [table], idx, col);
1266 * mono_metadata_parse_typedef_or_ref:
1267 * @m: a metadata context.
1268 * @ptr: a pointer to an encoded TypedefOrRef in @m
1269 * @rptr: pointer updated to match the end of the decoded stream
1271 * Returns: a token valid in the @m metadata decoded from
1272 * the compressed representation.
1275 mono_metadata_parse_typedef_or_ref (MonoImage *m, const char *ptr, const char **rptr)
1278 token = mono_metadata_decode_value (ptr, &ptr);
1281 return mono_metadata_token_from_dor (token);
1285 * mono_metadata_parse_custom_mod:
1286 * @m: a metadata context.
1287 * @dest: storage where the info about the custom modifier is stored (may be NULL)
1288 * @ptr: a pointer to (possibly) the start of a custom modifier list
1289 * @rptr: pointer updated to match the end of the decoded stream
1291 * Checks if @ptr points to a type custom modifier compressed representation.
1293 * Returns: #TRUE if a custom modifier was found, #FALSE if not.
1296 mono_metadata_parse_custom_mod (MonoImage *m, MonoCustomMod *dest, const char *ptr, const char **rptr)
1298 MonoCustomMod local;
1299 if ((*ptr == MONO_TYPE_CMOD_OPT) || (*ptr == MONO_TYPE_CMOD_REQD)) {
1302 dest->required = *ptr == MONO_TYPE_CMOD_REQD ? 1 : 0;
1303 dest->token = mono_metadata_parse_typedef_or_ref (m, ptr + 1, rptr);
1310 * mono_metadata_parse_array_internal:
1311 * @m: a metadata context.
1312 * @transient: whenever to allocate data from the heap
1313 * @ptr: a pointer to an encoded array description.
1314 * @rptr: pointer updated to match the end of the decoded stream
1316 * Decodes the compressed array description found in the metadata @m at @ptr.
1318 * Returns: a #MonoArrayType structure describing the array type
1319 * and dimensions. Memory is allocated from the heap or from the image mempool, depending
1320 * on the value of @transient.
1322 * LOCKING: Acquires the loader lock
1324 static MonoArrayType *
1325 mono_metadata_parse_array_internal (MonoImage *m, MonoGenericContainer *container,
1326 gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1329 MonoArrayType *array;
1332 etype = mono_metadata_parse_type_checked (m, container, 0, FALSE, ptr, &ptr, error); //FIXME this doesn't respect @transient
1336 array = transient ? g_malloc0 (sizeof (MonoArrayType)) : mono_image_alloc0 (m, sizeof (MonoArrayType));
1337 array->eklass = mono_class_from_mono_type (etype);
1338 array->rank = mono_metadata_decode_value (ptr, &ptr);
1340 array->numsizes = mono_metadata_decode_value (ptr, &ptr);
1341 if (array->numsizes)
1342 array->sizes = transient ? g_malloc0 (sizeof (int) * array->numsizes) : mono_image_alloc0 (m, sizeof (int) * array->numsizes);
1343 for (i = 0; i < array->numsizes; ++i)
1344 array->sizes [i] = mono_metadata_decode_value (ptr, &ptr);
1346 array->numlobounds = mono_metadata_decode_value (ptr, &ptr);
1347 if (array->numlobounds)
1348 array->lobounds = transient ? g_malloc0 (sizeof (int) * array->numlobounds) : mono_image_alloc0 (m, sizeof (int) * array->numlobounds);
1349 for (i = 0; i < array->numlobounds; ++i)
1350 array->lobounds [i] = mono_metadata_decode_signed_value (ptr, &ptr);
1358 mono_metadata_parse_array_full (MonoImage *m, MonoGenericContainer *container,
1359 const char *ptr, const char **rptr)
1362 MonoArrayType *ret = mono_metadata_parse_array_internal (m, container, FALSE, ptr, rptr, &error);
1364 mono_loader_set_error_from_mono_error (&error);
1365 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1371 mono_metadata_parse_array (MonoImage *m, const char *ptr, const char **rptr)
1373 return mono_metadata_parse_array_full (m, NULL, ptr, rptr);
1377 * mono_metadata_free_array:
1378 * @array: array description
1380 * Frees the array description returned from mono_metadata_parse_array().
1383 mono_metadata_free_array (MonoArrayType *array)
1385 g_free (array->sizes);
1386 g_free (array->lobounds);
1391 * need to add common field and param attributes combinations:
1394 * public static literal
1397 * private static literal
1399 static const MonoType
1401 /* data, attrs, type, nmods, byref, pinned */
1402 {{NULL}, 0, MONO_TYPE_VOID, 0, 0, 0},
1403 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 0, 0},
1404 {{NULL}, 0, MONO_TYPE_BOOLEAN, 0, 1, 0},
1405 {{NULL}, 0, MONO_TYPE_CHAR, 0, 0, 0},
1406 {{NULL}, 0, MONO_TYPE_CHAR, 0, 1, 0},
1407 {{NULL}, 0, MONO_TYPE_I1, 0, 0, 0},
1408 {{NULL}, 0, MONO_TYPE_I1, 0, 1, 0},
1409 {{NULL}, 0, MONO_TYPE_U1, 0, 0, 0},
1410 {{NULL}, 0, MONO_TYPE_U1, 0, 1, 0},
1411 {{NULL}, 0, MONO_TYPE_I2, 0, 0, 0},
1412 {{NULL}, 0, MONO_TYPE_I2, 0, 1, 0},
1413 {{NULL}, 0, MONO_TYPE_U2, 0, 0, 0},
1414 {{NULL}, 0, MONO_TYPE_U2, 0, 1, 0},
1415 {{NULL}, 0, MONO_TYPE_I4, 0, 0, 0},
1416 {{NULL}, 0, MONO_TYPE_I4, 0, 1, 0},
1417 {{NULL}, 0, MONO_TYPE_U4, 0, 0, 0},
1418 {{NULL}, 0, MONO_TYPE_U4, 0, 1, 0},
1419 {{NULL}, 0, MONO_TYPE_I8, 0, 0, 0},
1420 {{NULL}, 0, MONO_TYPE_I8, 0, 1, 0},
1421 {{NULL}, 0, MONO_TYPE_U8, 0, 0, 0},
1422 {{NULL}, 0, MONO_TYPE_U8, 0, 1, 0},
1423 {{NULL}, 0, MONO_TYPE_R4, 0, 0, 0},
1424 {{NULL}, 0, MONO_TYPE_R4, 0, 1, 0},
1425 {{NULL}, 0, MONO_TYPE_R8, 0, 0, 0},
1426 {{NULL}, 0, MONO_TYPE_R8, 0, 1, 0},
1427 {{NULL}, 0, MONO_TYPE_STRING, 0, 0, 0},
1428 {{NULL}, 0, MONO_TYPE_STRING, 0, 1, 0},
1429 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 0, 0},
1430 {{NULL}, 0, MONO_TYPE_OBJECT, 0, 1, 0},
1431 {{NULL}, 0, MONO_TYPE_TYPEDBYREF, 0, 0, 0},
1432 {{NULL}, 0, MONO_TYPE_I, 0, 0, 0},
1433 {{NULL}, 0, MONO_TYPE_I, 0, 1, 0},
1434 {{NULL}, 0, MONO_TYPE_U, 0, 0, 0},
1435 {{NULL}, 0, MONO_TYPE_U, 0, 1, 0},
1438 #define NBUILTIN_TYPES() (sizeof (builtin_types) / sizeof (builtin_types [0]))
1440 static GHashTable *type_cache = NULL;
1441 static int next_generic_inst_id = 0;
1443 /* Protected by image_sets_mutex */
1444 static MonoImageSet *mscorlib_image_set;
1445 /* Protected by image_sets_mutex */
1446 static GPtrArray *image_sets;
1447 static mono_mutex_t image_sets_mutex;
1449 static guint mono_generic_class_hash (gconstpointer data);
1452 * MonoTypes with modifies are never cached, so we never check or use that field.
1455 mono_type_hash (gconstpointer data)
1457 const MonoType *type = (const MonoType *) data;
1458 if (type->type == MONO_TYPE_GENERICINST)
1459 return mono_generic_class_hash (type->data.generic_class);
1461 return type->type | (type->byref << 8) | (type->attrs << 9);
1465 mono_type_equal (gconstpointer ka, gconstpointer kb)
1467 const MonoType *a = (const MonoType *) ka;
1468 const MonoType *b = (const MonoType *) kb;
1470 if (a->type != b->type || a->byref != b->byref || a->attrs != b->attrs || a->pinned != b->pinned)
1472 /* need other checks */
1477 mono_metadata_generic_inst_hash (gconstpointer data)
1479 const MonoGenericInst *ginst = (const MonoGenericInst *) data;
1483 for (i = 0; i < ginst->type_argc; ++i) {
1485 hash += mono_metadata_type_hash (ginst->type_argv [i]);
1488 return hash ^ (ginst->is_open << 8);
1492 mono_generic_inst_equal_full (const MonoGenericInst *a, const MonoGenericInst *b, gboolean signature_only)
1496 // An optimization: if the ids of two insts are the same, we know they are the same inst and don't check contents.
1497 // Furthermore, because we perform early de-duping, if the ids differ, we know the contents differ.
1498 #ifndef MONO_SMALL_CONFIG // Optimization does not work in MONO_SMALL_CONFIG: There are no IDs
1499 if (a->id && b->id) { // "id 0" means "object has no id"-- de-duping hasn't been performed yet, must check contents.
1502 // In signature-comparison mode id equality implies object equality, but this is not true for inequality.
1503 // Two separate objects could have signature-equavalent contents.
1504 if (!signature_only)
1509 if (a->is_open != b->is_open || a->type_argc != b->type_argc)
1511 for (i = 0; i < a->type_argc; ++i) {
1512 if (!do_mono_metadata_type_equal (a->type_argv [i], b->type_argv [i], signature_only))
1519 mono_metadata_generic_inst_equal (gconstpointer ka, gconstpointer kb)
1521 const MonoGenericInst *a = (const MonoGenericInst *) ka;
1522 const MonoGenericInst *b = (const MonoGenericInst *) kb;
1524 return mono_generic_inst_equal_full (a, b, FALSE);
1528 mono_generic_class_hash (gconstpointer data)
1530 const MonoGenericClass *gclass = (const MonoGenericClass *) data;
1531 guint hash = mono_metadata_type_hash (&gclass->container_class->byval_arg);
1534 hash += gclass->is_tb_open;
1535 hash += mono_metadata_generic_context_hash (&gclass->context);
1541 mono_generic_class_equal (gconstpointer ka, gconstpointer kb)
1543 const MonoGenericClass *a = (const MonoGenericClass *) ka;
1544 const MonoGenericClass *b = (const MonoGenericClass *) kb;
1546 return _mono_metadata_generic_class_equal (a, b, FALSE);
1550 * mono_metadata_init:
1552 * Initialize the global variables of this module.
1553 * This is a Mono runtime internal function.
1556 mono_metadata_init (void)
1560 type_cache = g_hash_table_new (mono_type_hash, mono_type_equal);
1562 for (i = 0; i < NBUILTIN_TYPES (); ++i)
1563 g_hash_table_insert (type_cache, (gpointer) &builtin_types [i], (gpointer) &builtin_types [i]);
1565 mono_os_mutex_init_recursive (&image_sets_mutex);
1569 * mono_metadata_cleanup:
1571 * Free all resources used by this module.
1572 * This is a Mono runtime internal function.
1575 mono_metadata_cleanup (void)
1577 g_hash_table_destroy (type_cache);
1579 g_ptr_array_free (image_sets, TRUE);
1581 mono_os_mutex_destroy (&image_sets_mutex);
1585 * mono_metadata_parse_type:
1586 * @m: metadata context
1587 * @mode: king of type that may be found at @ptr
1588 * @opt_attrs: optional attributes to store in the returned type
1589 * @ptr: pointer to the type representation
1590 * @rptr: pointer updated to match the end of the decoded stream
1591 * @transient: whenever to allocate the result from the heap or from a mempool
1593 * Decode a compressed type description found at @ptr in @m.
1594 * @mode can be one of MONO_PARSE_MOD_TYPE, MONO_PARSE_PARAM, MONO_PARSE_RET,
1595 * MONO_PARSE_FIELD, MONO_PARSE_LOCAL, MONO_PARSE_TYPE.
1596 * This function can be used to decode type descriptions in method signatures,
1597 * field signatures, locals signatures etc.
1599 * To parse a generic type, `generic_container' points to the current class'es
1600 * (the `generic_container' field in the MonoClass) or the current generic method's
1601 * (stored in image->property_hash) generic container.
1602 * When we encounter any MONO_TYPE_VAR or MONO_TYPE_MVAR's, they're looked up in
1603 * this MonoGenericContainer.
1605 * LOCKING: Acquires the loader lock.
1607 * Returns: a #MonoType structure representing the decoded type.
1610 mono_metadata_parse_type_internal (MonoImage *m, MonoGenericContainer *container,
1611 short opt_attrs, gboolean transient, const char *ptr, const char **rptr)
1614 MonoType *type, *cached;
1616 gboolean byref = FALSE;
1617 gboolean pinned = FALSE;
1618 const char *tmp_ptr;
1619 int count = 0; // Number of mod arguments
1623 * According to the spec, custom modifiers should come before the byref
1624 * flag, but the IL produced by ilasm from the following signature:
1625 * object modopt(...) &
1626 * starts with a byref flag, followed by the modifiers. (bug #49802)
1627 * Also, this type seems to be different from 'object & modopt(...)'. Maybe
1628 * it would be better to treat byref as real type constructor instead of
1630 * Also, pinned should come before anything else, but some MSV++ produced
1631 * assemblies violate this (#bug 61990).
1634 /* Count the modifiers first */
1639 case MONO_TYPE_PINNED:
1640 case MONO_TYPE_BYREF:
1643 case MONO_TYPE_CMOD_REQD:
1644 case MONO_TYPE_CMOD_OPT:
1646 mono_metadata_parse_custom_mod (m, NULL, tmp_ptr, &tmp_ptr);
1653 if (count) { // There are mods, so the MonoType will be of nonstandard size.
1656 size = MONO_SIZEOF_TYPE + ((gint32)count) * sizeof (MonoCustomMod);
1657 type = transient ? g_malloc0 (size) : mono_image_alloc0 (m, size);
1658 type->num_mods = count;
1660 g_warning ("got more than 64 modifiers in type");
1661 } else { // The type is of standard size, so we can allocate it on the stack.
1663 memset (type, 0, MONO_SIZEOF_TYPE);
1666 /* Iterate again, but now parse pinned, byref and custom modifiers */
1671 case MONO_TYPE_PINNED:
1675 case MONO_TYPE_BYREF:
1679 case MONO_TYPE_CMOD_REQD:
1680 case MONO_TYPE_CMOD_OPT:
1681 mono_metadata_parse_custom_mod (m, &(type->modifiers [count]), ptr, &ptr);
1689 type->attrs = opt_attrs;
1690 type->byref = byref;
1691 type->pinned = pinned ? 1 : 0;
1693 if (!do_mono_metadata_parse_type (type, m, container, transient, ptr, &ptr, &error)) {
1694 mono_loader_set_error_from_mono_error (&error);
1695 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1702 // Possibly we can return an already-allocated type instead of the one we decoded
1703 if (!type->num_mods && !transient) {
1704 /* no need to free type here, because it is on the stack */
1705 if ((type->type == MONO_TYPE_CLASS || type->type == MONO_TYPE_VALUETYPE) && !type->pinned && !type->attrs) {
1706 MonoType *ret = type->byref ? &type->data.klass->this_arg : &type->data.klass->byval_arg;
1708 /* Consider the case:
1710 class Foo<T> { class Bar {} }
1711 class Test : Foo<Test>.Bar {}
1713 When Foo<Test> is being expanded, 'Test' isn't yet initialized. It's actually in
1714 a really pristine state: it doesn't even know whether 'Test' is a reference or a value type.
1716 We ensure that the MonoClass is in a state that we can canonicalize to:
1718 klass->byval_arg.data.klass == klass
1719 klass->this_arg.data.klass == klass
1721 If we can't canonicalize 'type', it doesn't matter, since later users of 'type' will do it.
1723 LOCKING: even though we don't explicitly hold a lock, in the problematic case 'ret' is a field
1724 of a MonoClass which currently holds the loader lock. 'type' is local.
1726 if (ret->data.klass == type->data.klass) {
1730 /* No need to use locking since nobody is modifying the hash table */
1731 if ((cached = g_hash_table_lookup (type_cache, type))) {
1736 /* printf ("%x %x %c %s\n", type->attrs, type->num_mods, type->pinned ? 'p' : ' ', mono_type_full_name (type)); */
1738 if (type == &stype) { // Type was allocated on the stack, so we need to copy it to safety
1739 type = transient ? g_malloc (MONO_SIZEOF_TYPE) : mono_image_alloc (m, MONO_SIZEOF_TYPE);
1740 memcpy (type, &stype, MONO_SIZEOF_TYPE);
1747 mono_metadata_parse_type_checked (MonoImage *m, MonoGenericContainer *container,
1748 short opt_attrs, gboolean transient, const char *ptr, const char **rptr, MonoError *error)
1752 mono_error_init (error);
1754 ret = mono_metadata_parse_type_internal (m, container, opt_attrs, transient, ptr, rptr);
1757 if (mono_loader_get_last_error ())
1758 mono_error_set_from_loader_error (error);
1760 mono_error_set_bad_image (error, m, "Could not parse type at %p due to unknown reasons", ptr);
1768 mono_metadata_parse_type_full (MonoImage *m, MonoGenericContainer *container,
1769 short opt_attrs, const char *ptr, const char **rptr)
1771 return mono_metadata_parse_type_internal (m, container, opt_attrs, FALSE, ptr, rptr);
1775 * LOCKING: Acquires the loader lock.
1778 mono_metadata_parse_type (MonoImage *m, MonoParseTypeMode mode, short opt_attrs,
1779 const char *ptr, const char **rptr)
1781 return mono_metadata_parse_type_full (m, NULL, opt_attrs, ptr, rptr);
1785 mono_metadata_method_has_param_attrs (MonoImage *m, int def)
1787 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1788 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1789 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1791 if (def < methodt->rows)
1792 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1794 lastp = m->tables [MONO_TABLE_PARAM].rows + 1;
1796 for (i = param_index; i < lastp; ++i) {
1797 guint32 flags = mono_metadata_decode_row_col (paramt, i - 1, MONO_PARAM_FLAGS);
1806 * mono_metadata_get_param_attrs:
1808 * @m The image to loader parameter attributes from
1809 * @def method def token (one based)
1810 * @param_count number of params to decode including the return value
1812 * Return the parameter attributes for the method whose MethodDef index is DEF. The
1813 * returned memory needs to be freed by the caller. If all the param attributes are
1814 * 0, then NULL is returned.
1817 mono_metadata_get_param_attrs (MonoImage *m, int def, int param_count)
1819 MonoTableInfo *paramt = &m->tables [MONO_TABLE_PARAM];
1820 MonoTableInfo *methodt = &m->tables [MONO_TABLE_METHOD];
1821 guint32 cols [MONO_PARAM_SIZE];
1822 guint lastp, i, param_index = mono_metadata_decode_row_col (methodt, def - 1, MONO_METHOD_PARAMLIST);
1825 if (def < methodt->rows)
1826 lastp = mono_metadata_decode_row_col (methodt, def, MONO_METHOD_PARAMLIST);
1828 lastp = paramt->rows + 1;
1830 for (i = param_index; i < lastp; ++i) {
1831 mono_metadata_decode_row (paramt, i - 1, cols, MONO_PARAM_SIZE);
1832 if (cols [MONO_PARAM_FLAGS]) {
1834 pattrs = g_new0 (int, param_count);
1835 /* at runtime we just ignore this kind of malformed file:
1836 * the verifier can signal the error to the user
1838 if (cols [MONO_PARAM_SEQUENCE] >= param_count)
1840 pattrs [cols [MONO_PARAM_SEQUENCE]] = cols [MONO_PARAM_FLAGS];
1849 * mono_metadata_parse_signature:
1850 * @image: metadata context
1851 * @toke: metadata token
1853 * Decode a method signature stored in the STANDALONESIG table
1855 * Returns: a MonoMethodSignature describing the signature.
1857 MonoMethodSignature*
1858 mono_metadata_parse_signature (MonoImage *image, guint32 token)
1861 MonoMethodSignature *ret;
1862 MonoTableInfo *tables = image->tables;
1863 guint32 idx = mono_metadata_token_index (token);
1867 if (image_is_dynamic (image))
1868 return mono_lookup_dynamic_token (image, token, NULL);
1870 g_assert (mono_metadata_token_table(token) == MONO_TABLE_STANDALONESIG);
1872 sig = mono_metadata_decode_row_col (&tables [MONO_TABLE_STANDALONESIG], idx - 1, 0);
1874 ptr = mono_metadata_blob_heap (image, sig);
1875 mono_metadata_decode_blob_size (ptr, &ptr);
1877 ret = mono_metadata_parse_method_signature_full (image, NULL, 0, ptr, NULL, &error);
1878 mono_error_cleanup (&error); /*FIXME don't swallow the error message*/
1883 * mono_metadata_signature_alloc:
1884 * @image: metadata context
1885 * @nparmas: number of parameters in the signature
1887 * Allocate a MonoMethodSignature structure with the specified number of params.
1888 * The return type and the params types need to be filled later.
1889 * This is a Mono runtime internal function.
1891 * LOCKING: Assumes the loader lock is held.
1893 * Returns: the new MonoMethodSignature structure.
1895 MonoMethodSignature*
1896 mono_metadata_signature_alloc (MonoImage *m, guint32 nparams)
1898 MonoMethodSignature *sig;
1900 sig = mono_image_alloc0 (m, MONO_SIZEOF_METHOD_SIGNATURE + ((gint32)nparams) * sizeof (MonoType*));
1901 sig->param_count = nparams;
1902 sig->sentinelpos = -1;
1907 static MonoMethodSignature*
1908 mono_metadata_signature_dup_internal_with_padding (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig, size_t padding)
1910 int sigsize, sig_header_size;
1911 MonoMethodSignature *ret;
1912 sigsize = sig_header_size = MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *) + padding;
1914 sigsize += MONO_SIZEOF_TYPE;
1917 ret = mono_image_alloc (image, sigsize);
1919 ret = mono_mempool_alloc (mp, sigsize);
1921 ret = g_malloc (sigsize);
1924 memcpy (ret, sig, sig_header_size - padding);
1926 // Copy return value because of ownership semantics.
1928 // Danger! Do not alter padding use without changing the dup_add_this below
1929 intptr_t end_of_header = (intptr_t)( (char*)(ret) + sig_header_size);
1930 ret->ret = (MonoType *)end_of_header;
1931 memcpy (ret->ret, sig->ret, MONO_SIZEOF_TYPE);
1937 static MonoMethodSignature*
1938 mono_metadata_signature_dup_internal (MonoImage *image, MonoMemPool *mp, MonoMethodSignature *sig)
1940 return mono_metadata_signature_dup_internal_with_padding (image, mp, sig, 0);
1943 * signature_dup_add_this:
1945 * Make a copy of @sig, adding an explicit this argument.
1947 MonoMethodSignature*
1948 mono_metadata_signature_dup_add_this (MonoImage *image, MonoMethodSignature *sig, MonoClass *klass)
1950 MonoMethodSignature *ret;
1951 ret = mono_metadata_signature_dup_internal_with_padding (image, NULL, sig, sizeof (MonoType *));
1953 ret->param_count = sig->param_count + 1;
1954 ret->hasthis = FALSE;
1956 for (int i = sig->param_count - 1; i >= 0; i --)
1957 ret->params [i + 1] = sig->params [i];
1958 ret->params [0] = klass->valuetype ? &klass->this_arg : &klass->byval_arg;
1960 for (int i = sig->param_count - 1; i >= 0; i --)
1961 g_assert(ret->params [i + 1]->type == sig->params [i]->type && ret->params [i+1]->type != MONO_TYPE_END);
1962 g_assert (ret->ret->type == sig->ret->type && ret->ret->type != MONO_TYPE_END);
1969 MonoMethodSignature*
1970 mono_metadata_signature_dup_full (MonoImage *image, MonoMethodSignature *sig)
1972 MonoMethodSignature *ret = mono_metadata_signature_dup_internal (image, NULL, sig);
1974 for (int i = 0 ; i < sig->param_count; i ++)
1975 g_assert(ret->params [i]->type == sig->params [i]->type);
1976 g_assert (ret->ret->type == sig->ret->type);
1981 /*The mempool is accessed without synchronization*/
1982 MonoMethodSignature*
1983 mono_metadata_signature_dup_mempool (MonoMemPool *mp, MonoMethodSignature *sig)
1985 return mono_metadata_signature_dup_internal (NULL, mp, sig);
1989 * mono_metadata_signature_dup:
1990 * @sig: method signature
1992 * Duplicate an existing MonoMethodSignature so it can be modified.
1993 * This is a Mono runtime internal function.
1995 * Returns: the new MonoMethodSignature structure.
1997 MonoMethodSignature*
1998 mono_metadata_signature_dup (MonoMethodSignature *sig)
2000 return mono_metadata_signature_dup_full (NULL, sig);
2004 * mono_metadata_signature_size:
2006 * Return the amount of memory allocated to SIG.
2009 mono_metadata_signature_size (MonoMethodSignature *sig)
2011 return MONO_SIZEOF_METHOD_SIGNATURE + sig->param_count * sizeof (MonoType *);
2015 * mono_metadata_parse_method_signature:
2016 * @m: metadata context
2017 * @generic_container: generics container
2018 * @def: the MethodDef index or 0 for Ref signatures.
2019 * @ptr: pointer to the signature metadata representation
2020 * @rptr: pointer updated to match the end of the decoded stream
2022 * Decode a method signature stored at @ptr.
2023 * This is a Mono runtime internal function.
2025 * LOCKING: Assumes the loader lock is held.
2027 * Returns: a MonoMethodSignature describing the signature.
2029 MonoMethodSignature *
2030 mono_metadata_parse_method_signature_full (MonoImage *m, MonoGenericContainer *container,
2031 int def, const char *ptr, const char **rptr, MonoError *error)
2033 MonoMethodSignature *method;
2034 int i, *pattrs = NULL;
2035 guint32 hasthis = 0, explicit_this = 0, call_convention, param_count;
2036 guint32 gen_param_count = 0;
2037 gboolean is_open = FALSE;
2039 mono_error_init (error);
2042 gen_param_count = 1;
2047 call_convention = *ptr & 0x0F;
2049 if (gen_param_count)
2050 gen_param_count = mono_metadata_decode_value (ptr, &ptr);
2051 param_count = mono_metadata_decode_value (ptr, &ptr);
2054 pattrs = mono_metadata_get_param_attrs (m, def, param_count + 1); /*Must be + 1 since signature's param count doesn't account for the return value */
2056 method = mono_metadata_signature_alloc (m, param_count);
2057 method->hasthis = hasthis;
2058 method->explicit_this = explicit_this;
2059 method->call_convention = call_convention;
2060 method->generic_param_count = gen_param_count;
2062 if (call_convention != 0xa) {
2063 method->ret = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [0] : 0, FALSE, ptr, &ptr, error);
2065 mono_metadata_free_method_signature (method);
2069 is_open = mono_class_is_open_constructed_type (method->ret);
2072 for (i = 0; i < method->param_count; ++i) {
2073 if (*ptr == MONO_TYPE_SENTINEL) {
2074 if (method->call_convention != MONO_CALL_VARARG || def) {
2075 mono_loader_assert_no_error ();
2076 mono_error_set_bad_image (error, m, "Found sentinel for methoddef or no vararg");
2080 if (method->sentinelpos >= 0) {
2081 mono_loader_assert_no_error ();
2082 mono_error_set_bad_image (error, m, "Found sentinel twice in the same signature.");
2086 method->sentinelpos = i;
2089 method->params [i] = mono_metadata_parse_type_checked (m, container, pattrs ? pattrs [i+1] : 0, FALSE, ptr, &ptr, error);
2090 if (!method->params [i]) {
2091 mono_metadata_free_method_signature (method);
2096 is_open = mono_class_is_open_constructed_type (method->params [i]);
2099 /* The sentinel could be missing if the caller does not pass any additional arguments */
2100 if (!def && method->call_convention == MONO_CALL_VARARG && method->sentinelpos < 0)
2101 method->sentinelpos = method->param_count;
2103 method->has_type_parameters = is_open;
2105 if (def && (method->call_convention == MONO_CALL_VARARG))
2106 method->sentinelpos = method->param_count;
2113 * Add signature to a cache and increase ref count...
2116 mono_loader_assert_no_error ();
2121 * mono_metadata_parse_method_signature:
2122 * @m: metadata context
2123 * @def: the MethodDef index or 0 for Ref signatures.
2124 * @ptr: pointer to the signature metadata representation
2125 * @rptr: pointer updated to match the end of the decoded stream
2127 * Decode a method signature stored at @ptr.
2128 * This is a Mono runtime internal function.
2130 * LOCKING: Assumes the loader lock is held.
2132 * Returns: a MonoMethodSignature describing the signature.
2134 MonoMethodSignature *
2135 mono_metadata_parse_method_signature (MonoImage *m, int def, const char *ptr, const char **rptr)
2138 * This function MUST NOT be called by runtime code as it does error handling incorrectly.
2139 * Use mono_metadata_parse_method_signature_full instead.
2140 * It's ok to asser on failure as we no longer use it.
2143 MonoMethodSignature *ret;
2144 ret = mono_metadata_parse_method_signature_full (m, NULL, def, ptr, rptr, &error);
2145 g_assert (mono_error_ok (&error));
2151 * mono_metadata_free_method_signature:
2152 * @sig: signature to destroy
2154 * Free the memory allocated in the signature @sig.
2155 * This method needs to be robust and work also on partially-built
2156 * signatures, so it does extra checks.
2159 mono_metadata_free_method_signature (MonoMethodSignature *sig)
2161 /* Everything is allocated from mempools */
2165 mono_metadata_free_type (sig->ret);
2166 for (i = 0; i < sig->param_count; ++i) {
2167 if (sig->params [i])
2168 mono_metadata_free_type (sig->params [i]);
2174 mono_metadata_free_inflated_signature (MonoMethodSignature *sig)
2178 /* Allocated in inflate_generic_signature () */
2180 mono_metadata_free_type (sig->ret);
2181 for (i = 0; i < sig->param_count; ++i) {
2182 if (sig->params [i])
2183 mono_metadata_free_type (sig->params [i]);
2189 inflated_method_equal (gconstpointer a, gconstpointer b)
2191 const MonoMethodInflated *ma = a;
2192 const MonoMethodInflated *mb = b;
2193 if (ma->declaring != mb->declaring)
2195 return mono_metadata_generic_context_equal (&ma->context, &mb->context);
2199 inflated_method_hash (gconstpointer a)
2201 const MonoMethodInflated *ma = a;
2202 return (mono_metadata_generic_context_hash (&ma->context) ^ mono_aligned_addr_hash (ma->declaring));
2206 inflated_signature_equal (gconstpointer a, gconstpointer b)
2208 const MonoInflatedMethodSignature *sig1 = a;
2209 const MonoInflatedMethodSignature *sig2 = b;
2211 /* sig->sig is assumed to be canonized */
2212 if (sig1->sig != sig2->sig)
2214 /* The generic instances are canonized */
2215 return mono_metadata_generic_context_equal (&sig1->context, &sig2->context);
2219 inflated_signature_hash (gconstpointer a)
2221 const MonoInflatedMethodSignature *sig = a;
2223 /* sig->sig is assumed to be canonized */
2224 return mono_metadata_generic_context_hash (&sig->context) ^ mono_aligned_addr_hash (sig->sig);
2228 dump_ginst (MonoGenericInst *ginst)
2233 g_print ("Ginst: <");
2234 for (i = 0; i < ginst->type_argc; ++i) {
2237 name = mono_type_get_name (ginst->type_argv [i]);
2238 g_print ("%s", name);
2244 static gboolean type_in_image (MonoType *type, MonoImage *image);
2247 signature_in_image (MonoMethodSignature *sig, MonoImage *image)
2249 gpointer iter = NULL;
2252 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2253 if (type_in_image (p, image))
2256 return type_in_image (mono_signature_get_return_type (sig), image);
2260 ginst_in_image (MonoGenericInst *ginst, MonoImage *image)
2264 for (i = 0; i < ginst->type_argc; ++i) {
2265 if (type_in_image (ginst->type_argv [i], image))
2273 gclass_in_image (MonoGenericClass *gclass, MonoImage *image)
2275 return gclass->container_class->image == image ||
2276 ginst_in_image (gclass->context.class_inst, image);
2280 type_in_image (MonoType *type, MonoImage *image)
2283 switch (type->type) {
2284 case MONO_TYPE_GENERICINST:
2285 return gclass_in_image (type->data.generic_class, image);
2287 type = type->data.type;
2289 case MONO_TYPE_SZARRAY:
2290 type = &type->data.klass->byval_arg;
2292 case MONO_TYPE_ARRAY:
2293 type = &type->data.array->eklass->byval_arg;
2295 case MONO_TYPE_FNPTR:
2296 return signature_in_image (type->data.method, image);
2298 case MONO_TYPE_MVAR:
2299 return image == get_image_for_generic_param (type->data.generic_param);
2301 /* At this point, we should've avoided all potential allocations in mono_class_from_mono_type () */
2302 return image == mono_class_from_mono_type (type)->image;
2307 image_sets_lock (void)
2309 mono_os_mutex_lock (&image_sets_mutex);
2313 image_sets_unlock (void)
2315 mono_os_mutex_unlock (&image_sets_mutex);
2321 * Return a MonoImageSet representing the set of images in IMAGES.
2323 static MonoImageSet*
2324 get_image_set (MonoImage **images, int nimages)
2330 /* Common case: Image set contains corlib only. If we've seen that case before, we cached the set. */
2331 if (nimages == 1 && images [0] == mono_defaults.corlib && mscorlib_image_set)
2332 return mscorlib_image_set;
2334 /* Happens with empty generic instances */
2335 // FIXME: Is corlib the correct thing to return here? If so, why? This may be an artifact of generic instances previously defaulting to allocating from corlib.
2337 return mscorlib_image_set;
2342 image_sets = g_ptr_array_new ();
2344 // Before we go on, we should check to see whether a MonoImageSet with these images already exists.
2345 // We can search the referred-by imagesets of any one of our images to do this. Arbitrarily pick one here:
2346 if (images [0] == mono_defaults.corlib && nimages > 1)
2347 l = images [1]->image_sets; // Prefer not to search the imagesets of corlib-- that will be a long list.
2349 l = images [0]->image_sets;
2352 while (l) // Iterate over selected list, looking for an imageset with members equal to our target one
2356 if (set->nimages == nimages) { // Member count differs, this can't be it
2357 // Compare all members to all members-- order might be different
2358 for (j = 0; j < nimages; ++j) {
2359 for (k = 0; k < nimages; ++k)
2360 if (set->images [k] == images [j])
2361 break; // Break on match
2363 // If we iterated all the way through set->images, images[j] was *not* found.
2365 break; // Break on "image not found"
2368 // If we iterated all the way through images without breaking, all items in images were found in set->images
2370 break; // Break on "found a set with equal members"
2376 // If we iterated all the way through l without breaking, the imageset does not already exist and we shuold create it
2378 set = g_new0 (MonoImageSet, 1);
2379 set->nimages = nimages;
2380 set->images = g_new0 (MonoImage*, nimages);
2381 mono_os_mutex_init_recursive (&set->lock);
2382 for (i = 0; i < nimages; ++i)
2383 set->images [i] = images [i];
2384 set->gclass_cache = g_hash_table_new_full (mono_generic_class_hash, mono_generic_class_equal, NULL, (GDestroyNotify)free_generic_class);
2385 set->ginst_cache = g_hash_table_new_full (mono_metadata_generic_inst_hash, mono_metadata_generic_inst_equal, NULL, (GDestroyNotify)free_generic_inst);
2386 set->gmethod_cache = g_hash_table_new_full (inflated_method_hash, inflated_method_equal, NULL, (GDestroyNotify)free_inflated_method);
2387 set->gsignature_cache = g_hash_table_new_full (inflated_signature_hash, inflated_signature_equal, NULL, (GDestroyNotify)free_inflated_signature);
2389 for (i = 0; i < nimages; ++i)
2390 set->images [i]->image_sets = g_slist_prepend (set->images [i]->image_sets, set);
2392 g_ptr_array_add (image_sets, set);
2395 if (nimages == 1 && images [0] == mono_defaults.corlib) {
2396 mono_memory_barrier ();
2397 mscorlib_image_set = set;
2400 image_sets_unlock ();
2406 delete_image_set (MonoImageSet *set)
2410 g_hash_table_destroy (set->gclass_cache);
2411 g_hash_table_destroy (set->ginst_cache);
2412 g_hash_table_destroy (set->gmethod_cache);
2413 g_hash_table_destroy (set->gsignature_cache);
2415 mono_wrapper_caches_free (&set->wrapper_caches);
2419 for (i = 0; i < set->nimages; ++i)
2420 set->images [i]->image_sets = g_slist_remove (set->images [i]->image_sets, set);
2422 g_ptr_array_remove (image_sets, set);
2424 image_sets_unlock ();
2427 mono_mempool_destroy (set->mempool);
2428 g_free (set->images);
2429 mono_os_mutex_destroy (&set->lock);
2434 mono_image_set_lock (MonoImageSet *set)
2436 mono_os_mutex_lock (&set->lock);
2440 mono_image_set_unlock (MonoImageSet *set)
2442 mono_os_mutex_unlock (&set->lock);
2446 mono_image_set_alloc (MonoImageSet *set, guint size)
2450 mono_image_set_lock (set);
2452 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2453 res = mono_mempool_alloc (set->mempool, size);
2454 mono_image_set_unlock (set);
2460 mono_image_set_alloc0 (MonoImageSet *set, guint size)
2464 mono_image_set_lock (set);
2466 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2467 res = mono_mempool_alloc0 (set->mempool, size);
2468 mono_image_set_unlock (set);
2474 mono_image_set_strdup (MonoImageSet *set, const char *s)
2478 mono_image_set_lock (set);
2480 set->mempool = mono_mempool_new_size (INITIAL_IMAGE_SET_SIZE);
2481 res = mono_mempool_strdup (set->mempool, s);
2482 mono_image_set_unlock (set);
2487 // Get a descriptive string for a MonoImageSet
2488 // Callers are obligated to free buffer with g_free after use
2490 mono_image_set_description (MonoImageSet *set)
2492 GString *result = g_string_new (NULL);
2494 g_string_append (result, "[");
2495 for (img = 0; img < set->nimages; img++)
2498 g_string_append (result, ", ");
2499 g_string_append (result, set->images[img]->name);
2501 g_string_append (result, "]");
2502 return g_string_free (result, FALSE);
2506 * Structure used by the collect_..._images functions to store the image list.
2509 MonoImage *image_buf [64];
2511 int nimages, images_len;
2515 collect_data_init (CollectData *data)
2517 data->images = data->image_buf;
2518 data->images_len = 64;
2523 collect_data_free (CollectData *data)
2525 if (data->images != data->image_buf)
2526 g_free (data->images);
2530 enlarge_data (CollectData *data)
2532 int new_len = data->images_len < 16 ? 16 : data->images_len * 2;
2533 MonoImage **d = g_new (MonoImage *, new_len);
2536 g_assert_not_reached ();
2537 memcpy (d, data->images, data->images_len);
2538 if (data->images != data->image_buf)
2539 g_free (data->images);
2541 data->images_len = new_len;
2545 add_image (MonoImage *image, CollectData *data)
2549 /* The arrays are small, so use a linear search instead of a hash table */
2550 for (i = 0; i < data->nimages; ++i)
2551 if (data->images [i] == image)
2554 if (data->nimages == data->images_len)
2555 enlarge_data (data);
2557 data->images [data->nimages ++] = image;
2561 collect_type_images (MonoType *type, CollectData *data);
2564 collect_ginst_images (MonoGenericInst *ginst, CollectData *data)
2568 for (i = 0; i < ginst->type_argc; ++i) {
2569 collect_type_images (ginst->type_argv [i], data);
2574 collect_gclass_images (MonoGenericClass *gclass, CollectData *data)
2576 add_image (gclass->container_class->image, data);
2577 if (gclass->context.class_inst)
2578 collect_ginst_images (gclass->context.class_inst, data);
2582 collect_signature_images (MonoMethodSignature *sig, CollectData *data)
2584 gpointer iter = NULL;
2587 collect_type_images (mono_signature_get_return_type (sig), data);
2588 while ((p = mono_signature_get_params (sig, &iter)) != NULL)
2589 collect_type_images (p, data);
2593 collect_inflated_signature_images (MonoInflatedMethodSignature *sig, CollectData *data)
2595 collect_signature_images (sig->sig, data);
2596 if (sig->context.class_inst)
2597 collect_ginst_images (sig->context.class_inst, data);
2598 if (sig->context.method_inst)
2599 collect_ginst_images (sig->context.method_inst, data);
2603 collect_method_images (MonoMethodInflated *method, CollectData *data)
2605 MonoMethod *m = method->declaring;
2607 add_image (method->declaring->klass->image, data);
2608 if (method->context.class_inst)
2609 collect_ginst_images (method->context.class_inst, data);
2610 if (method->context.method_inst)
2611 collect_ginst_images (method->context.method_inst, data);
2613 * Dynamic assemblies have no references, so the images they depend on can be unloaded before them.
2615 if (image_is_dynamic (m->klass->image))
2616 collect_signature_images (mono_method_signature (m), data);
2620 collect_type_images (MonoType *type, CollectData *data)
2623 switch (type->type) {
2624 case MONO_TYPE_GENERICINST:
2625 collect_gclass_images (type->data.generic_class, data);
2628 type = type->data.type;
2630 case MONO_TYPE_SZARRAY:
2631 type = &type->data.klass->byval_arg;
2633 case MONO_TYPE_ARRAY:
2634 type = &type->data.array->eklass->byval_arg;
2636 case MONO_TYPE_FNPTR:
2637 //return signature_in_image (type->data.method, image);
2638 g_assert_not_reached ();
2640 case MONO_TYPE_MVAR:
2642 MonoImage *image = get_image_for_generic_param (type->data.generic_param);
2643 add_image (image, data);
2646 case MONO_TYPE_CLASS:
2647 case MONO_TYPE_VALUETYPE:
2648 add_image (mono_class_from_mono_type (type)->image, data);
2651 add_image (mono_defaults.corlib, data);
2658 } CleanForImageUserData;
2661 steal_gclass_in_image (gpointer key, gpointer value, gpointer data)
2663 MonoGenericClass *gclass = key;
2664 CleanForImageUserData *user_data = data;
2666 g_assert (gclass_in_image (gclass, user_data->image));
2668 user_data->list = g_slist_prepend (user_data->list, gclass);
2673 steal_ginst_in_image (gpointer key, gpointer value, gpointer data)
2675 MonoGenericInst *ginst = key;
2676 CleanForImageUserData *user_data = data;
2678 // This doesn't work during corlib compilation
2679 //g_assert (ginst_in_image (ginst, user_data->image));
2681 user_data->list = g_slist_prepend (user_data->list, ginst);
2686 inflated_method_in_image (gpointer key, gpointer value, gpointer data)
2688 MonoImage *image = data;
2689 MonoMethodInflated *method = key;
2692 // https://bugzilla.novell.com/show_bug.cgi?id=458168
2693 g_assert (method->declaring->klass->image == image ||
2694 (method->context.class_inst && ginst_in_image (method->context.class_inst, image)) ||
2695 (method->context.method_inst && ginst_in_image (method->context.method_inst, image)) || (((MonoMethod*)method)->signature && signature_in_image (mono_method_signature ((MonoMethod*)method), image)));
2701 inflated_signature_in_image (gpointer key, gpointer value, gpointer data)
2703 MonoImage *image = data;
2704 MonoInflatedMethodSignature *sig = key;
2706 return signature_in_image (sig->sig, image) ||
2707 (sig->context.class_inst && ginst_in_image (sig->context.class_inst, image)) ||
2708 (sig->context.method_inst && ginst_in_image (sig->context.method_inst, image));
2712 check_gmethod (gpointer key, gpointer value, gpointer data)
2714 MonoMethodInflated *method = key;
2715 MonoImage *image = data;
2717 if (method->context.class_inst)
2718 g_assert (!ginst_in_image (method->context.class_inst, image));
2719 if (method->context.method_inst)
2720 g_assert (!ginst_in_image (method->context.method_inst, image));
2721 if (((MonoMethod*)method)->signature)
2722 g_assert (!signature_in_image (mono_method_signature ((MonoMethod*)method), image));
2728 * Run a consistency check on the image set data structures.
2730 static G_GNUC_UNUSED void
2731 check_image_sets (MonoImage *image)
2734 GSList *l = image->image_sets;
2739 for (i = 0; i < image_sets->len; ++i) {
2740 MonoImageSet *set = g_ptr_array_index (image_sets, i);
2742 if (!g_slist_find (l, set)) {
2743 g_hash_table_foreach (set->gmethod_cache, check_gmethod, image);
2749 mono_metadata_clean_for_image (MonoImage *image)
2751 CleanForImageUserData ginst_data, gclass_data;
2752 GSList *l, *set_list;
2754 //check_image_sets (image);
2757 * The data structures could reference each other so we delete them in two phases.
2758 * This is required because of the hashing functions in gclass/ginst_cache.
2760 ginst_data.image = gclass_data.image = image;
2761 ginst_data.list = gclass_data.list = NULL;
2763 /* Collect the items to delete */
2764 /* delete_image_set () modifies the lists so make a copy */
2765 for (l = image->image_sets; l; l = l->next) {
2766 MonoImageSet *set = l->data;
2768 mono_image_set_lock (set);
2769 g_hash_table_foreach_steal (set->gclass_cache, steal_gclass_in_image, &gclass_data);
2770 g_hash_table_foreach_steal (set->ginst_cache, steal_ginst_in_image, &ginst_data);
2771 g_hash_table_foreach_remove (set->gmethod_cache, inflated_method_in_image, image);
2772 g_hash_table_foreach_remove (set->gsignature_cache, inflated_signature_in_image, image);
2773 mono_image_set_unlock (set);
2776 /* Delete the removed items */
2777 for (l = ginst_data.list; l; l = l->next)
2778 free_generic_inst (l->data);
2779 for (l = gclass_data.list; l; l = l->next)
2780 free_generic_class (l->data);
2781 g_slist_free (ginst_data.list);
2782 g_slist_free (gclass_data.list);
2783 /* delete_image_set () modifies the lists so make a copy */
2784 set_list = g_slist_copy (image->image_sets);
2785 for (l = set_list; l; l = l->next) {
2786 MonoImageSet *set = l->data;
2788 delete_image_set (set);
2790 g_slist_free (set_list);
2794 free_inflated_method (MonoMethodInflated *imethod)
2797 MonoMethod *method = (MonoMethod*)imethod;
2799 if (method->signature)
2800 mono_metadata_free_inflated_signature (method->signature);
2802 if (!((method->flags & METHOD_ATTRIBUTE_ABSTRACT) || (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) || (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) || (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))) {
2803 MonoMethodHeader *header = imethod->header;
2806 /* Allocated in inflate_generic_header () */
2807 for (i = 0; i < header->num_locals; ++i)
2808 mono_metadata_free_type (header->locals [i]);
2809 g_free (header->clauses);
2818 free_generic_inst (MonoGenericInst *ginst)
2822 /* The ginst itself is allocated from the image set mempool */
2823 for (i = 0; i < ginst->type_argc; ++i)
2824 mono_metadata_free_type (ginst->type_argv [i]);
2828 free_generic_class (MonoGenericClass *gclass)
2830 /* The gclass itself is allocated from the image set mempool */
2831 if (gclass->is_dynamic)
2832 mono_reflection_free_dynamic_generic_class (gclass);
2833 if (gclass->cached_class && gclass->cached_class->interface_id)
2834 mono_unload_interface_id (gclass->cached_class);
2838 free_inflated_signature (MonoInflatedMethodSignature *sig)
2840 mono_metadata_free_inflated_signature (sig->sig);
2845 * mono_metadata_get_inflated_signature:
2847 * Given an inflated signature and a generic context, return a canonical copy of the
2848 * signature. The returned signature might be equal to SIG or it might be a cached copy.
2850 MonoMethodSignature *
2851 mono_metadata_get_inflated_signature (MonoMethodSignature *sig, MonoGenericContext *context)
2853 MonoInflatedMethodSignature helper;
2854 MonoInflatedMethodSignature *res;
2859 helper.context.class_inst = context->class_inst;
2860 helper.context.method_inst = context->method_inst;
2862 collect_data_init (&data);
2864 collect_inflated_signature_images (&helper, &data);
2866 set = get_image_set (data.images, data.nimages);
2868 collect_data_free (&data);
2870 mono_image_set_lock (set);
2872 res = g_hash_table_lookup (set->gsignature_cache, &helper);
2874 res = g_new0 (MonoInflatedMethodSignature, 1);
2876 res->context.class_inst = context->class_inst;
2877 res->context.method_inst = context->method_inst;
2878 g_hash_table_insert (set->gsignature_cache, res, res);
2881 mono_image_set_unlock (set);
2887 mono_metadata_get_image_set_for_method (MonoMethodInflated *method)
2890 CollectData image_set_data;
2892 collect_data_init (&image_set_data);
2893 collect_method_images (method, &image_set_data);
2894 set = get_image_set (image_set_data.images, image_set_data.nimages);
2895 collect_data_free (&image_set_data);
2901 * mono_metadata_get_generic_inst:
2903 * Given a list of types, return a MonoGenericInst that represents that list.
2904 * The returned MonoGenericInst has its own copy of the list of types. The list
2905 * passed in the argument can be freed, modified or disposed of.
2909 mono_metadata_get_generic_inst (int type_argc, MonoType **type_argv)
2911 MonoGenericInst *ginst;
2914 int size = MONO_SIZEOF_GENERIC_INST + type_argc * sizeof (MonoType *);
2918 for (i = 0; i < type_argc; ++i)
2919 if (mono_class_is_open_constructed_type (type_argv [i]))
2921 is_open = (i < type_argc);
2923 ginst = g_alloca (size);
2924 memset (ginst, 0, sizeof (MonoGenericInst));
2925 ginst->is_open = is_open;
2926 ginst->type_argc = type_argc;
2927 memcpy (ginst->type_argv, type_argv, type_argc * sizeof (MonoType *));
2929 collect_data_init (&data);
2931 collect_ginst_images (ginst, &data);
2933 set = get_image_set (data.images, data.nimages);
2935 collect_data_free (&data);
2937 mono_image_set_lock (set);
2939 ginst = g_hash_table_lookup (set->ginst_cache, ginst);
2941 ginst = mono_image_set_alloc0 (set, size);
2942 #ifndef MONO_SMALL_CONFIG
2943 ginst->id = ++next_generic_inst_id;
2945 ginst->is_open = is_open;
2946 ginst->type_argc = type_argc;
2948 for (i = 0; i < type_argc; ++i)
2949 ginst->type_argv [i] = mono_metadata_type_dup (NULL, type_argv [i]);
2951 g_hash_table_insert (set->ginst_cache, ginst, ginst);
2954 mono_image_set_unlock (set);
2959 mono_metadata_is_type_builder_generic_type_definition (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2961 MonoGenericContainer *container = container_class->generic_container;
2963 if (!is_dynamic || container_class->wastypebuilder || container->type_argc != inst->type_argc)
2965 return inst == container->context.class_inst;
2969 * mono_metadata_lookup_generic_class:
2971 * Returns a MonoGenericClass with the given properties.
2975 mono_metadata_lookup_generic_class (MonoClass *container_class, MonoGenericInst *inst, gboolean is_dynamic)
2977 MonoGenericClass *gclass;
2978 MonoGenericClass helper;
2979 gboolean is_tb_open = mono_metadata_is_type_builder_generic_type_definition (container_class, inst, is_dynamic);
2983 memset (&helper, 0, sizeof(helper)); // act like g_new0
2984 helper.container_class = container_class;
2985 helper.context.class_inst = inst;
2986 helper.is_dynamic = is_dynamic; /* We use this in a hash lookup, which does not attempt to downcast the pointer */
2987 helper.is_tb_open = is_tb_open;
2989 collect_data_init (&data);
2991 collect_gclass_images (&helper, &data);
2993 set = get_image_set (data.images, data.nimages);
2995 collect_data_free (&data);
2997 mono_image_set_lock (set);
2999 gclass = g_hash_table_lookup (set->gclass_cache, &helper);
3001 /* A tripwire just to keep us honest */
3002 g_assert (!helper.cached_class);
3005 mono_image_set_unlock (set);
3010 MonoDynamicGenericClass *dgclass = mono_image_set_new0 (set, MonoDynamicGenericClass, 1);
3011 gclass = &dgclass->generic_class;
3012 gclass->is_dynamic = 1;
3014 gclass = mono_image_set_new0 (set, MonoGenericClass, 1);
3017 gclass->is_tb_open = is_tb_open;
3018 gclass->container_class = container_class;
3019 gclass->context.class_inst = inst;
3020 gclass->context.method_inst = NULL;
3021 gclass->owner = set;
3022 if (inst == container_class->generic_container->context.class_inst && !is_tb_open)
3023 gclass->cached_class = container_class;
3025 g_hash_table_insert (set->gclass_cache, gclass, gclass);
3027 mono_image_set_unlock (set);
3033 * mono_metadata_inflate_generic_inst:
3035 * Instantiate the generic instance @ginst with the context @context.
3036 * Check @error for success.
3040 mono_metadata_inflate_generic_inst (MonoGenericInst *ginst, MonoGenericContext *context, MonoError *error)
3042 MonoType **type_argv;
3043 MonoGenericInst *nginst = NULL;
3046 mono_error_init (error);
3048 if (!ginst->is_open)
3051 type_argv = g_new0 (MonoType*, ginst->type_argc);
3053 for (i = 0; i < ginst->type_argc; i++) {
3054 type_argv [i] = mono_class_inflate_generic_type_checked (ginst->type_argv [i], context, error);
3055 if (!mono_error_ok (error))
3060 nginst = mono_metadata_get_generic_inst (ginst->type_argc, type_argv);
3063 for (i = 0; i < count; i++)
3064 mono_metadata_free_type (type_argv [i]);
3071 mono_metadata_parse_generic_inst (MonoImage *m, MonoGenericContainer *container,
3072 int count, const char *ptr, const char **rptr, MonoError *error)
3074 MonoType **type_argv;
3075 MonoGenericInst *ginst;
3078 mono_error_init (error);
3079 type_argv = g_new0 (MonoType*, count);
3081 for (i = 0; i < count; i++) {
3082 MonoType *t = mono_metadata_parse_type_checked (m, container, 0, FALSE, ptr, &ptr, error);
3093 ginst = mono_metadata_get_generic_inst (count, type_argv);
3101 do_mono_metadata_parse_generic_class (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3102 const char *ptr, const char **rptr, MonoError *error)
3104 MonoGenericInst *inst;
3109 mono_error_init (error);
3111 // XXX how about transient?
3112 gtype = mono_metadata_parse_type_checked (m, NULL, 0, FALSE, ptr, &ptr, error);
3116 gklass = mono_class_from_mono_type (gtype);
3117 if (!gklass->generic_container) {
3118 mono_error_set_bad_image (error, m, "Generic instance with non-generic definition");
3122 count = mono_metadata_decode_value (ptr, &ptr);
3123 inst = mono_metadata_parse_generic_inst (m, container, count, ptr, &ptr, error);
3130 type->data.generic_class = mono_metadata_lookup_generic_class (gklass, inst, FALSE);
3136 * @gc: The generic container to normalize
3137 * @type: The kind of generic parameters the resulting generic-container should contain
3140 static MonoGenericContainer *
3141 select_container (MonoGenericContainer *gc, MonoTypeEnum type)
3143 gboolean is_var = (type == MONO_TYPE_VAR);
3147 g_assert (is_var || type == MONO_TYPE_MVAR);
3150 if (gc->is_method || gc->parent)
3152 * The current MonoGenericContainer is a generic method -> its `parent'
3153 * points to the containing class'es container.
3161 MonoGenericContainer *
3162 get_anonymous_container_for_image (MonoImage *image, gboolean is_mvar)
3164 MonoGenericContainer **container_pointer;
3166 container_pointer = &image->anonymous_generic_method_container;
3168 container_pointer = &image->anonymous_generic_class_container;
3169 MonoGenericContainer *result = *container_pointer;
3171 // This container has never been created; make it now.
3174 // Note this is never deallocated anywhere-- it exists for the lifetime of the image it's allocated from
3175 result = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
3176 result->owner.image = image;
3177 result->is_anonymous = TRUE;
3178 result->is_small_param = TRUE;
3179 result->is_method = is_mvar;
3181 // If another thread already made a container, use that and leak this new one.
3182 // (Technically it would currently be safe to just assign instead of CASing.)
3183 MonoGenericContainer *exchange = InterlockedCompareExchangePointer ((volatile gpointer *)container_pointer, result, NULL);
3191 * mono_metadata_parse_generic_param:
3192 * @generic_container: Our MonoClass's or MonoMethod's MonoGenericContainer;
3193 * see mono_metadata_parse_type_full() for details.
3194 * Internal routine to parse a generic type parameter.
3195 * LOCKING: Acquires the loader lock
3197 static MonoGenericParam *
3198 mono_metadata_parse_generic_param (MonoImage *m, MonoGenericContainer *generic_container,
3199 MonoTypeEnum type, const char *ptr, const char **rptr, MonoError *error)
3201 int index = mono_metadata_decode_value (ptr, &ptr);
3205 mono_error_init (error);
3207 generic_container = select_container (generic_container, type);
3208 if (!generic_container) {
3209 gboolean is_mvar = FALSE;
3214 case MONO_TYPE_MVAR:
3218 g_error ("Cerating generic param object with invalid MonoType"); // This is not a generic param
3221 /* Create dummy MonoGenericParam */
3222 MonoGenericParam *param;
3224 param = mono_image_alloc0 (m, sizeof (MonoGenericParam));
3226 param->owner = get_anonymous_container_for_image (m, is_mvar);
3231 if (index >= generic_container->type_argc) {
3232 mono_error_set_bad_image (error, m, "Invalid generic %s parameter index %d, max index is %d",
3233 generic_container->is_method ? "method" : "type",
3234 index, generic_container->type_argc);
3238 //This can't return NULL
3239 return mono_generic_container_get_param (generic_container, index);
3243 * mono_metadata_get_shared_type:
3245 * Return a shared instance of TYPE, if available, NULL otherwise.
3246 * Shared MonoType instances help save memory. Their contents should not be modified
3247 * by the caller. They do not need to be freed as their lifetime is bound by either
3248 * the lifetime of the runtime (builtin types), or the lifetime of the MonoClass
3249 * instance they are embedded in. If they are freed, they should be freed using
3250 * mono_metadata_free_type () instead of g_free ().
3253 mono_metadata_get_shared_type (MonoType *type)
3257 /* No need to use locking since nobody is modifying the hash table */
3258 if ((cached = g_hash_table_lookup (type_cache, type)))
3261 switch (type->type){
3262 case MONO_TYPE_CLASS:
3263 case MONO_TYPE_VALUETYPE:
3264 if (type == &type->data.klass->byval_arg)
3266 if (type == &type->data.klass->this_arg)
3277 compare_type_literals (MonoImage *image, int class_type, int type_type, MonoError *error)
3279 mono_error_init (error);
3281 /* byval_arg.type can be zero if we're decoding a type that references a class been loading.
3282 * See mcs/test/gtest-440. and #650936.
3283 * FIXME This better be moved to the metadata verifier as it can catch more cases.
3287 /* NET 1.1 assemblies might encode string and object in a denormalized way.
3290 if (class_type == type_type)
3293 if (type_type == MONO_TYPE_CLASS) {
3294 if (class_type == MONO_TYPE_STRING || class_type == MONO_TYPE_OBJECT)
3296 //XXX stringify this argument
3297 mono_error_set_bad_image (error, image, "Expected reference type but got type kind %d", class_type);
3301 g_assert (type_type == MONO_TYPE_VALUETYPE);
3302 switch (class_type) {
3303 case MONO_TYPE_BOOLEAN:
3304 case MONO_TYPE_CHAR:
3317 case MONO_TYPE_CLASS:
3320 //XXX stringify this argument
3321 mono_error_set_bad_image (error, image, "Expected value type but got type kind %d", class_type);
3327 verify_var_type_and_container (MonoImage *image, int var_type, MonoGenericContainer *container, MonoError *error)
3329 mono_error_init (error);
3330 if (var_type == MONO_TYPE_MVAR) {
3331 if (!container->is_method) { //MVAR and a method container
3332 mono_error_set_bad_image (error, image, "MVAR parsed in a context without a method container");
3336 if (!(!container->is_method || //VAR and class container
3337 (container->is_method && container->parent))) { //VAR and method container with parent
3338 mono_error_set_bad_image (error, image, "VAR parsed in a context without a class container");
3346 * do_mono_metadata_parse_type:
3347 * @type: MonoType to be filled in with the return value
3349 * @generic_context: generics_context
3350 * @transient: whenever to allocate data from the heap
3351 * @ptr: pointer to the encoded type
3352 * @rptr: pointer where the end of the encoded type is saved
3354 * Internal routine used to "fill" the contents of @type from an
3355 * allocated pointer. This is done this way to avoid doing too
3356 * many mini-allocations (particularly for the MonoFieldType which
3357 * most of the time is just a MonoType, but sometimes might be augmented).
3359 * This routine is used by mono_metadata_parse_type and
3360 * mono_metadata_parse_field_type
3362 * This extracts a Type as specified in Partition II (22.2.12)
3364 * Returns: FALSE if the type could not be loaded
3367 do_mono_metadata_parse_type (MonoType *type, MonoImage *m, MonoGenericContainer *container,
3368 gboolean transient, const char *ptr, const char **rptr, MonoError *error)
3370 mono_error_init (error);
3372 type->type = mono_metadata_decode_value (ptr, &ptr);
3374 switch (type->type){
3375 case MONO_TYPE_VOID:
3376 case MONO_TYPE_BOOLEAN:
3377 case MONO_TYPE_CHAR:
3390 case MONO_TYPE_STRING:
3391 case MONO_TYPE_OBJECT:
3392 case MONO_TYPE_TYPEDBYREF:
3394 case MONO_TYPE_VALUETYPE:
3395 case MONO_TYPE_CLASS: {
3398 token = mono_metadata_parse_typedef_or_ref (m, ptr, &ptr);
3399 klass = mono_class_get_checked (m, token, error);
3400 type->data.klass = klass;
3404 if (!compare_type_literals (m, klass->byval_arg.type, type->type, error))
3409 case MONO_TYPE_SZARRAY: {
3410 MonoType *etype = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3414 type->data.klass = mono_class_from_mono_type (etype);
3415 g_assert (type->data.klass); //This was previously a check for NULL, but mcfmt should never fail. It can return a borken MonoClass, but should return at least something.
3418 case MONO_TYPE_PTR: {
3419 type->data.type = mono_metadata_parse_type_checked (m, container, 0, transient, ptr, &ptr, error);
3420 if (!type->data.type)
3424 case MONO_TYPE_FNPTR: {
3425 type->data.method = mono_metadata_parse_method_signature_full (m, container, 0, ptr, &ptr, error);
3426 if (!type->data.method)
3430 case MONO_TYPE_ARRAY: {
3431 type->data.array = mono_metadata_parse_array_internal (m, container, transient, ptr, &ptr, error);
3432 if (!type->data.array)
3436 case MONO_TYPE_MVAR:
3437 case MONO_TYPE_VAR: {
3438 if (container && !verify_var_type_and_container (m, type->type, container, error))
3441 type->data.generic_param = mono_metadata_parse_generic_param (m, container, type->type, ptr, &ptr, error);
3442 if (!type->data.generic_param)
3447 case MONO_TYPE_GENERICINST: {
3448 if (!do_mono_metadata_parse_generic_class (type, m, container, ptr, &ptr, error))
3453 mono_error_set_bad_image (error, m, "type 0x%02x not handled in do_mono_metadata_parse_type on image %s", type->type, m->name);
3463 * mono_metadata_free_type:
3464 * @type: type to free
3466 * Free the memory allocated for type @type which is allocated on the heap.
3469 mono_metadata_free_type (MonoType *type)
3471 if (type >= builtin_types && type < builtin_types + NBUILTIN_TYPES ())
3474 switch (type->type){
3475 case MONO_TYPE_OBJECT:
3476 case MONO_TYPE_STRING:
3477 if (!type->data.klass)
3480 case MONO_TYPE_CLASS:
3481 case MONO_TYPE_VALUETYPE:
3482 if (type == &type->data.klass->byval_arg || type == &type->data.klass->this_arg)
3486 mono_metadata_free_type (type->data.type);
3488 case MONO_TYPE_FNPTR:
3489 mono_metadata_free_method_signature (type->data.method);
3491 case MONO_TYPE_ARRAY:
3492 mono_metadata_free_array (type->data.array);
3503 hex_dump (const char *buffer, int base, int count)
3505 int show_header = 1;
3513 for (i = 0; i < count; i++){
3516 printf ("\n0x%08x: ", (unsigned char) base + i);
3518 printf ("%02x ", (unsigned char) (buffer [i]));
3525 * @ptr: Points to the beginning of the Section Data (25.3)
3527 static MonoExceptionClause*
3528 parse_section_data (MonoImage *m, int *num_clauses, const unsigned char *ptr)
3530 unsigned char sect_data_flags;
3532 guint32 sect_data_len;
3533 MonoExceptionClause* clauses = NULL;
3536 /* align on 32-bit boundary */
3537 ptr = dword_align (ptr);
3538 sect_data_flags = *ptr;
3541 is_fat = sect_data_flags & METHOD_HEADER_SECTION_FAT_FORMAT;
3543 sect_data_len = (ptr [2] << 16) | (ptr [1] << 8) | ptr [0];
3546 sect_data_len = ptr [0];
3550 if (sect_data_flags & METHOD_HEADER_SECTION_EHTABLE) {
3551 const unsigned char *p = dword_align (ptr);
3553 *num_clauses = is_fat ? sect_data_len / 24: sect_data_len / 12;
3554 /* we could just store a pointer if we don't need to byteswap */
3555 clauses = g_malloc0 (sizeof (MonoExceptionClause) * (*num_clauses));
3556 for (i = 0; i < *num_clauses; ++i) {
3557 MonoExceptionClause *ec = &clauses [i];
3560 ec->flags = read32 (p);
3561 ec->try_offset = read32 (p + 4);
3562 ec->try_len = read32 (p + 8);
3563 ec->handler_offset = read32 (p + 12);
3564 ec->handler_len = read32 (p + 16);
3565 tof_value = read32 (p + 20);
3568 ec->flags = read16 (p);
3569 ec->try_offset = read16 (p + 2);
3570 ec->try_len = *(p + 4);
3571 ec->handler_offset = read16 (p + 5);
3572 ec->handler_len = *(p + 7);
3573 tof_value = read32 (p + 8);
3576 if (ec->flags == MONO_EXCEPTION_CLAUSE_FILTER) {
3577 ec->data.filter_offset = tof_value;
3578 } else if (ec->flags == MONO_EXCEPTION_CLAUSE_NONE) {
3579 ec->data.catch_class = NULL;
3582 ec->data.catch_class = mono_class_get_checked (m, tof_value, &error);
3583 if (!mono_error_ok (&error)) {
3584 mono_error_cleanup (&error); /* FIXME don't swallow the error */
3590 ec->data.catch_class = NULL;
3592 /* g_print ("try %d: %x %04x-%04x %04x\n", i, ec->flags, ec->try_offset, ec->try_offset+ec->try_len, ec->try_len); */
3596 if (sect_data_flags & METHOD_HEADER_SECTION_MORE_SECTS)
3597 ptr += sect_data_len - 4; /* LAMESPEC: it seems the size includes the header */
3604 * mono_method_get_header_summary:
3605 * @method: The method to get the header.
3606 * @summary: Where to store the header
3609 * Returns: true if the header was properly decoded.
3612 mono_method_get_header_summary (MonoMethod *method, MonoMethodHeaderSummary *summary)
3618 unsigned char flags, format;
3621 /*Only the GMD has a pointer to the metadata.*/
3622 while (method->is_inflated)
3623 method = ((MonoMethodInflated*)method)->declaring;
3625 summary->code_size = 0;
3626 summary->has_clauses = FALSE;
3628 /*FIXME extract this into a MACRO and share it with mono_method_get_header*/
3629 if ((method->flags & METHOD_ATTRIBUTE_ABSTRACT) || (method->iflags & METHOD_IMPL_ATTRIBUTE_RUNTIME) || (method->iflags & METHOD_IMPL_ATTRIBUTE_INTERNAL_CALL) || (method->flags & METHOD_ATTRIBUTE_PINVOKE_IMPL))
3632 if (method->wrapper_type != MONO_WRAPPER_NONE || method->sre_method) {
3633 MonoMethodHeader *header = ((MonoMethodWrapper *)method)->header;
3636 summary->code_size = header->code_size;
3637 summary->has_clauses = header->num_clauses > 0;
3642 idx = mono_metadata_token_index (method->token);
3643 img = method->klass->image;
3644 rva = mono_metadata_decode_row_col (&img->tables [MONO_TABLE_METHOD], idx - 1, MONO_METHOD_RVA);
3646 /*We must run the verifier since we'll be decoding it.*/
3647 if (!mono_verifier_verify_method_header (img, rva, NULL))
3650 ptr = mono_image_rva_map (img, rva);
3653 flags = *(const unsigned char *)ptr;
3654 format = flags & METHOD_HEADER_FORMAT_MASK;
3657 case METHOD_HEADER_TINY_FORMAT:
3659 summary->code_size = flags >> 2;
3661 case METHOD_HEADER_FAT_FORMAT:
3662 fat_flags = read16 (ptr);
3664 summary->code_size = read32 (ptr);
3665 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3666 summary->has_clauses = TRUE;
3675 * mono_metadata_parse_mh_full:
3676 * @m: metadata context
3677 * @generic_context: generics context
3678 * @ptr: pointer to the method header.
3680 * Decode the method header at @ptr, including pointer to the IL code,
3681 * info about local variables and optional exception tables.
3682 * This is a Mono runtime internal function.
3684 * LOCKING: Acquires the loader lock.
3686 * Returns: a transient MonoMethodHeader allocated from the heap.
3689 mono_metadata_parse_mh_full (MonoImage *m, MonoGenericContainer *container, const char *ptr)
3691 MonoMethodHeader *mh = NULL;
3692 unsigned char flags = *(const unsigned char *) ptr;
3693 unsigned char format = flags & METHOD_HEADER_FORMAT_MASK;
3695 guint32 local_var_sig_tok, max_stack, code_size, init_locals;
3696 const unsigned char *code;
3697 MonoExceptionClause* clauses = NULL;
3698 int num_clauses = 0;
3699 MonoTableInfo *t = &m->tables [MONO_TABLE_STANDALONESIG];
3700 guint32 cols [MONO_STAND_ALONE_SIGNATURE_SIZE];
3702 g_return_val_if_fail (ptr != NULL, NULL);
3705 case METHOD_HEADER_TINY_FORMAT:
3706 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER);
3709 mh->is_transient = TRUE;
3710 local_var_sig_tok = 0;
3711 mh->code_size = flags >> 2;
3712 mh->code = (unsigned char*)ptr;
3714 case METHOD_HEADER_FAT_FORMAT:
3715 fat_flags = read16 (ptr);
3717 max_stack = read16 (ptr);
3719 code_size = read32 (ptr);
3721 local_var_sig_tok = read32 (ptr);
3724 if (fat_flags & METHOD_HEADER_INIT_LOCALS)
3729 code = (unsigned char*)ptr;
3731 if (!(fat_flags & METHOD_HEADER_MORE_SECTS))
3735 * There are more sections
3737 ptr = (char*)code + code_size;
3743 if (local_var_sig_tok) {
3744 int idx = (local_var_sig_tok & 0xffffff)-1;
3745 if (idx >= t->rows || idx < 0)
3747 mono_metadata_decode_row (t, idx, cols, 1);
3749 if (!mono_verifier_verify_standalone_signature (m, cols [MONO_STAND_ALONE_SIGNATURE], NULL))
3752 if (fat_flags & METHOD_HEADER_MORE_SECTS)
3753 clauses = parse_section_data (m, &num_clauses, (const unsigned char*)ptr);
3754 if (local_var_sig_tok) {
3755 const char *locals_ptr;
3758 locals_ptr = mono_metadata_blob_heap (m, cols [MONO_STAND_ALONE_SIGNATURE]);
3759 mono_metadata_decode_blob_size (locals_ptr, &locals_ptr);
3760 if (*locals_ptr != 0x07)
3761 g_warning ("wrong signature for locals blob");
3763 len = mono_metadata_decode_value (locals_ptr, &locals_ptr);
3764 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + len * sizeof (MonoType*) + num_clauses * sizeof (MonoExceptionClause));
3765 mh->num_locals = len;
3766 for (i = 0; i < len; ++i) {
3767 mh->locals [i] = mono_metadata_parse_type_internal (m, container,
3768 0, TRUE, locals_ptr, &locals_ptr);
3769 if (!mh->locals [i])
3773 mh = g_malloc0 (MONO_SIZEOF_METHOD_HEADER + num_clauses * sizeof (MonoExceptionClause));
3776 mh->code_size = code_size;
3777 mh->max_stack = max_stack;
3778 mh->is_transient = TRUE;
3779 mh->init_locals = init_locals;
3781 MonoExceptionClause* clausesp = (MonoExceptionClause*)&mh->locals [mh->num_locals];
3782 memcpy (clausesp, clauses, num_clauses * sizeof (MonoExceptionClause));
3784 mh->clauses = clausesp;
3785 mh->num_clauses = num_clauses;
3796 * mono_metadata_parse_mh:
3797 * @generic_context: generics context
3798 * @ptr: pointer to the method header.
3800 * Decode the method header at @ptr, including pointer to the IL code,
3801 * info about local variables and optional exception tables.
3803 * Returns: a transient MonoMethodHeader allocated from the heap.
3806 mono_metadata_parse_mh (MonoImage *m, const char *ptr)
3808 return mono_metadata_parse_mh_full (m, NULL, ptr);
3812 * mono_metadata_free_mh:
3813 * @mh: a method header
3815 * Free the memory allocated for the method header.
3818 mono_metadata_free_mh (MonoMethodHeader *mh)
3822 /* If it is not transient it means it's part of a wrapper method,
3823 * or a SRE-generated method, so the lifetime in that case is
3824 * dictated by the method's own lifetime
3826 if (mh->is_transient) {
3827 for (i = 0; i < mh->num_locals; ++i)
3828 mono_metadata_free_type (mh->locals [i]);
3834 * mono_method_header_get_code:
3835 * @header: a MonoMethodHeader pointer
3836 * @code_size: memory location for returning the code size
3837 * @max_stack: memory location for returning the max stack
3839 * Method header accessor to retreive info about the IL code properties:
3840 * a pointer to the IL code itself, the size of the code and the max number
3841 * of stack slots used by the code.
3843 * Returns: pointer to the IL code represented by the method header.
3845 const unsigned char*
3846 mono_method_header_get_code (MonoMethodHeader *header, guint32* code_size, guint32* max_stack)
3849 *code_size = header->code_size;
3851 *max_stack = header->max_stack;
3852 return header->code;
3856 * mono_method_header_get_locals:
3857 * @header: a MonoMethodHeader pointer
3858 * @num_locals: memory location for returning the number of local variables
3859 * @init_locals: memory location for returning the init_locals flag
3861 * Method header accessor to retreive info about the local variables:
3862 * an array of local types, the number of locals and whether the locals
3863 * are supposed to be initialized to 0 on method entry
3865 * Returns: pointer to an array of types of the local variables
3868 mono_method_header_get_locals (MonoMethodHeader *header, guint32* num_locals, gboolean *init_locals)
3871 *num_locals = header->num_locals;
3873 *init_locals = header->init_locals;
3874 return header->locals;
3878 * mono_method_header_get_num_clauses:
3879 * @header: a MonoMethodHeader pointer
3881 * Method header accessor to retreive the number of exception clauses.
3883 * Returns: the number of exception clauses present
3886 mono_method_header_get_num_clauses (MonoMethodHeader *header)
3888 return header->num_clauses;
3892 * mono_method_header_get_clauses:
3893 * @header: a MonoMethodHeader pointer
3894 * @method: MonoMethod the header belongs to
3895 * @iter: pointer to a iterator
3896 * @clause: pointer to a MonoExceptionClause structure which will be filled with the info
3898 * Get the info about the exception clauses in the method. Set *iter to NULL to
3899 * initiate the iteration, then call the method repeatedly until it returns FALSE.
3900 * At each iteration, the structure pointed to by clause if filled with the
3901 * exception clause information.
3903 * Returns: TRUE if clause was filled with info, FALSE if there are no more exception
3907 mono_method_header_get_clauses (MonoMethodHeader *header, MonoMethod *method, gpointer *iter, MonoExceptionClause *clause)
3909 MonoExceptionClause *sc;
3910 /* later we'll be able to use this interface to parse the clause info on demand,
3911 * without allocating anything.
3913 if (!iter || !header->num_clauses)
3916 *iter = sc = header->clauses;
3922 if (sc < header->clauses + header->num_clauses) {
3931 * mono_metadata_parse_field_type:
3932 * @m: metadata context to extract information from
3933 * @ptr: pointer to the field signature
3934 * @rptr: pointer updated to match the end of the decoded stream
3936 * Parses the field signature, and returns the type information for it.
3938 * Returns: The MonoType that was extracted from @ptr.
3941 mono_metadata_parse_field_type (MonoImage *m, short field_flags, const char *ptr, const char **rptr)
3943 return mono_metadata_parse_type (m, MONO_PARSE_FIELD, field_flags, ptr, rptr);
3947 * mono_metadata_parse_param:
3948 * @m: metadata context to extract information from
3949 * @ptr: pointer to the param signature
3950 * @rptr: pointer updated to match the end of the decoded stream
3952 * Parses the param signature, and returns the type information for it.
3954 * Returns: The MonoType that was extracted from @ptr.
3957 mono_metadata_parse_param (MonoImage *m, const char *ptr, const char **rptr)
3959 return mono_metadata_parse_type (m, MONO_PARSE_PARAM, 0, ptr, rptr);
3963 * mono_metadata_token_from_dor:
3964 * @dor_token: A TypeDefOrRef coded index
3966 * dor_token is a TypeDefOrRef coded index: it contains either
3967 * a TypeDef, TypeRef or TypeSpec in the lower bits, and the upper
3968 * bits contain an index into the table.
3970 * Returns: an expanded token
3973 mono_metadata_token_from_dor (guint32 dor_index)
3977 table = dor_index & 0x03;
3978 idx = dor_index >> 2;
3981 case 0: /* TypeDef */
3982 return MONO_TOKEN_TYPE_DEF | idx;
3983 case 1: /* TypeRef */
3984 return MONO_TOKEN_TYPE_REF | idx;
3985 case 2: /* TypeSpec */
3986 return MONO_TOKEN_TYPE_SPEC | idx;
3988 g_assert_not_reached ();
3995 * We use this to pass context information to the row locator
3998 int idx; /* The index that we are trying to locate */
3999 int col_idx; /* The index in the row where idx may be stored */
4000 MonoTableInfo *t; /* pointer to the table */
4005 * How the row locator works.
4010 * ___|___------> _______
4013 * A column in the rows of table A references an index in table B.
4014 * For example A may be the TYPEDEF table and B the METHODDEF table.
4016 * Given an index in table B we want to get the row in table A
4017 * where the column n references our index in B.
4019 * In the locator_t structure:
4021 * col_idx is the column number
4022 * index is the index in table B
4023 * result will be the index in table A
4026 * Table A Table B column (in table A)
4027 * TYPEDEF METHODDEF MONO_TYPEDEF_METHOD_LIST
4028 * TYPEDEF FIELD MONO_TYPEDEF_FIELD_LIST
4029 * PROPERTYMAP PROPERTY MONO_PROPERTY_MAP_PROPERTY_LIST
4030 * INTERFIMPL TYPEDEF MONO_INTERFACEIMPL_CLASS
4031 * METHODSEM PROPERTY ASSOCIATION (encoded index)
4033 * Note that we still don't support encoded indexes.
4037 typedef_locator (const void *a, const void *b)
4039 locator_t *loc = (locator_t *) a;
4040 const char *bb = (const char *) b;
4041 int typedef_index = (bb - loc->t->base) / loc->t->row_size;
4042 guint32 col, col_next;
4044 col = mono_metadata_decode_row_col (loc->t, typedef_index, loc->col_idx);
4050 * Need to check that the next row is valid.
4052 if (typedef_index + 1 < loc->t->rows) {
4053 col_next = mono_metadata_decode_row_col (loc->t, typedef_index + 1, loc->col_idx);
4054 if (loc->idx >= col_next)
4057 if (col == col_next)
4061 loc->result = typedef_index;
4067 table_locator (const void *a, const void *b)
4069 locator_t *loc = (locator_t *) a;
4070 const char *bb = (const char *) b;
4071 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4074 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4076 if (loc->idx == col) {
4077 loc->result = table_index;
4087 declsec_locator (const void *a, const void *b)
4089 locator_t *loc = (locator_t *) a;
4090 const char *bb = (const char *) b;
4091 guint32 table_index = (bb - loc->t->base) / loc->t->row_size;
4094 col = mono_metadata_decode_row_col (loc->t, table_index, loc->col_idx);
4096 if (loc->idx == col) {
4097 loc->result = table_index;
4109 * Return the 1-based row index in TABLE, which must be one of the *Ptr tables,
4110 * which contains IDX.
4113 search_ptr_table (MonoImage *image, int table, int idx)
4115 MonoTableInfo *ptrdef = &image->tables [table];
4118 /* Use a linear search to find our index in the table */
4119 for (i = 0; i < ptrdef->rows; i ++)
4120 /* All the Ptr tables have the same structure */
4121 if (mono_metadata_decode_row_col (ptrdef, i, 0) == idx)
4124 if (i < ptrdef->rows)
4131 * mono_metadata_typedef_from_field:
4132 * @meta: metadata context
4133 * @index: FieldDef token
4135 * Returns: the 1-based index into the TypeDef table of the type that
4136 * declared the field described by @index, or 0 if not found.
4139 mono_metadata_typedef_from_field (MonoImage *meta, guint32 index)
4141 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4147 loc.idx = mono_metadata_token_index (index);
4148 loc.col_idx = MONO_TYPEDEF_FIELD_LIST;
4151 if (meta->uncompressed_metadata)
4152 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
4154 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4157 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4158 return loc.result + 1;
4162 * mono_metadata_typedef_from_method:
4163 * @meta: metadata context
4164 * @index: MethodDef token
4166 * Returns: the 1-based index into the TypeDef table of the type that
4167 * declared the method described by @index. 0 if not found.
4170 mono_metadata_typedef_from_method (MonoImage *meta, guint32 index)
4172 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_TYPEDEF];
4178 loc.idx = mono_metadata_token_index (index);
4179 loc.col_idx = MONO_TYPEDEF_METHOD_LIST;
4182 if (meta->uncompressed_metadata)
4183 loc.idx = search_ptr_table (meta, MONO_TABLE_METHOD_POINTER, loc.idx);
4185 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, typedef_locator))
4188 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4189 return loc.result + 1;
4193 * mono_metadata_interfaces_from_typedef_full:
4194 * @meta: metadata context
4195 * @index: typedef token
4196 * @interfaces: Out parameter used to store the interface array
4197 * @count: Out parameter used to store the number of interfaces
4198 * @heap_alloc_result: if TRUE the result array will be g_malloc'd
4199 * @context: The generic context
4201 * The array of interfaces that the @index typedef token implements is returned in
4202 * @interfaces. The number of elements in the array is returned in @count.
4205 * Returns: TRUE on success, FALSE on failure.
4208 mono_metadata_interfaces_from_typedef_full (MonoImage *meta, guint32 index, MonoClass ***interfaces, guint *count, gboolean heap_alloc_result, MonoGenericContext *context, MonoError *error)
4210 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_INTERFACEIMPL];
4213 guint32 cols [MONO_INTERFACEIMPL_SIZE];
4219 mono_error_init (error);
4224 loc.idx = mono_metadata_token_index (index);
4225 loc.col_idx = MONO_INTERFACEIMPL_CLASS;
4228 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4233 * We may end up in the middle of the rows...
4236 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_INTERFACEIMPL_CLASS))
4242 while (pos < tdef->rows) {
4243 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4244 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4249 if (heap_alloc_result)
4250 result = g_new0 (MonoClass*, pos - start);
4252 result = mono_image_alloc0 (meta, sizeof (MonoClass*) * (pos - start));
4255 while (pos < tdef->rows) {
4258 mono_metadata_decode_row (tdef, pos, cols, MONO_INTERFACEIMPL_SIZE);
4259 if (cols [MONO_INTERFACEIMPL_CLASS] != loc.idx)
4261 iface = mono_class_get_and_inflate_typespec_checked (
4262 meta, mono_metadata_token_from_dor (cols [MONO_INTERFACEIMPL_INTERFACE]), context, error);
4265 result [pos - start] = iface;
4268 *count = pos - start;
4269 *interfaces = result;
4274 * @meta: metadata context
4275 * @index: typedef token
4276 * @count: Out parameter used to store the number of interfaces
4278 * The array of interfaces that the @index typedef token implements is returned in
4279 * @interfaces. The number of elements in the array is returned in @count. The returned
4280 * array is g_malloc'd and the caller must free it.
4282 * LOCKING: Acquires the loader lock .
4284 * Returns: the interface array on success, NULL on failure.
4288 mono_metadata_interfaces_from_typedef (MonoImage *meta, guint32 index, guint *count)
4291 MonoClass **interfaces = NULL;
4294 rv = mono_metadata_interfaces_from_typedef_full (meta, index, &interfaces, count, TRUE, NULL, &error);
4295 g_assert (mono_error_ok (&error)); /* FIXME dont swallow the error */
4303 * mono_metadata_nested_in_typedef:
4304 * @meta: metadata context
4305 * @index: typedef token
4307 * Returns: the 1-based index into the TypeDef table of the type
4308 * where the type described by @index is nested.
4309 * Returns 0 if @index describes a non-nested type.
4312 mono_metadata_nested_in_typedef (MonoImage *meta, guint32 index)
4314 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4320 loc.idx = mono_metadata_token_index (index);
4321 loc.col_idx = MONO_NESTED_CLASS_NESTED;
4324 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4327 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4328 return mono_metadata_decode_row_col (tdef, loc.result, MONO_NESTED_CLASS_ENCLOSING) | MONO_TOKEN_TYPE_DEF;
4332 * mono_metadata_nesting_typedef:
4333 * @meta: metadata context
4334 * @index: typedef token
4336 * Returns: the 1-based index into the TypeDef table of the first type
4337 * that is nested inside the type described by @index. The search starts at
4338 * @start_index. returns 0 if no such type is found.
4341 mono_metadata_nesting_typedef (MonoImage *meta, guint32 index, guint32 start_index)
4343 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_NESTEDCLASS];
4345 guint32 class_index = mono_metadata_token_index (index);
4350 start = start_index;
4352 while (start <= tdef->rows) {
4353 if (class_index == mono_metadata_decode_row_col (tdef, start - 1, MONO_NESTED_CLASS_ENCLOSING))
4359 if (start > tdef->rows)
4366 * mono_metadata_packing_from_typedef:
4367 * @meta: metadata context
4368 * @index: token representing a type
4370 * Returns: the info stored in the ClassLAyout table for the given typedef token
4371 * into the @packing and @size pointers.
4372 * Returns 0 if the info is not found.
4375 mono_metadata_packing_from_typedef (MonoImage *meta, guint32 index, guint32 *packing, guint32 *size)
4377 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CLASSLAYOUT];
4379 guint32 cols [MONO_CLASS_LAYOUT_SIZE];
4384 loc.idx = mono_metadata_token_index (index);
4385 loc.col_idx = MONO_CLASS_LAYOUT_PARENT;
4388 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4391 mono_metadata_decode_row (tdef, loc.result, cols, MONO_CLASS_LAYOUT_SIZE);
4393 *packing = cols [MONO_CLASS_LAYOUT_PACKING_SIZE];
4395 *size = cols [MONO_CLASS_LAYOUT_CLASS_SIZE];
4397 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4398 return loc.result + 1;
4402 * mono_metadata_custom_attrs_from_index:
4403 * @meta: metadata context
4404 * @index: token representing the parent
4406 * Returns: the 1-based index into the CustomAttribute table of the first
4407 * attribute which belongs to the metadata object described by @index.
4408 * Returns 0 if no such attribute is found.
4411 mono_metadata_custom_attrs_from_index (MonoImage *meta, guint32 index)
4413 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_CUSTOMATTRIBUTE];
4420 loc.col_idx = MONO_CUSTOM_ATTR_PARENT;
4423 /* FIXME: Index translation */
4425 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4428 /* Find the first entry by searching backwards */
4429 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_CUSTOM_ATTR_PARENT) == index))
4432 /* loc_result is 0..1, needs to be mapped to table index (that is +1) */
4433 return loc.result + 1;
4437 * mono_metadata_declsec_from_index:
4438 * @meta: metadata context
4439 * @index: token representing the parent
4441 * Returns: the 0-based index into the DeclarativeSecurity table of the first
4442 * attribute which belongs to the metadata object described by @index.
4443 * Returns -1 if no such attribute is found.
4446 mono_metadata_declsec_from_index (MonoImage *meta, guint32 index)
4448 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_DECLSECURITY];
4455 loc.col_idx = MONO_DECL_SECURITY_PARENT;
4458 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, declsec_locator))
4461 /* Find the first entry by searching backwards */
4462 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_DECL_SECURITY_PARENT) == index))
4469 * mono_metadata_localscope_from_methoddef:
4470 * @meta: metadata context
4471 * @index: methoddef index
4473 * Returns: the 1-based index into the LocalScope table of the first
4474 * scope which belongs to the method described by @index.
4475 * Returns 0 if no such row is found.
4478 mono_metadata_localscope_from_methoddef (MonoImage *meta, guint32 index)
4480 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_LOCALSCOPE];
4487 loc.col_idx = MONO_LOCALSCOPE_METHOD;
4490 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
4493 /* Find the first entry by searching backwards */
4494 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_LOCALSCOPE_METHOD) == index))
4497 return loc.result + 1;
4502 mono_backtrace (int limit)
4507 backtrace (array, limit);
4508 names = backtrace_symbols (array, limit);
4509 for (i =0; i < limit; ++i) {
4510 g_print ("\t%s\n", names [i]);
4516 static int i8_align;
4519 * mono_type_set_alignment:
4521 * Set the alignment used by runtime to layout fields etc. of type TYPE to ALIGN.
4522 * This should only be used in AOT mode since the resulting layout will not match the
4526 mono_type_set_alignment (MonoTypeEnum type, int align)
4528 /* Support only a few types whose alignment is abi dependent */
4534 g_assert_not_reached ();
4541 * @t: the type to return the size of
4543 * Returns: the number of bytes required to hold an instance of this
4547 mono_type_size (MonoType *t, int *align)
4549 MonoTypeEnum simple_type;
4556 *align = MONO_ABI_ALIGNOF (gpointer);
4557 return MONO_ABI_SIZEOF (gpointer);
4560 simple_type = t->type;
4562 switch (simple_type) {
4563 case MONO_TYPE_VOID:
4566 case MONO_TYPE_BOOLEAN:
4567 *align = MONO_ABI_ALIGNOF (gint8);
4571 *align = MONO_ABI_ALIGNOF (gint8);
4573 case MONO_TYPE_CHAR:
4576 *align = MONO_ABI_ALIGNOF (gint16);
4580 *align = MONO_ABI_ALIGNOF (gint32);
4583 *align = MONO_ABI_ALIGNOF (float);
4587 *align = MONO_ABI_ALIGNOF (gint64);
4590 *align = MONO_ABI_ALIGNOF (double);
4594 *align = MONO_ABI_ALIGNOF (gpointer);
4595 return MONO_ABI_SIZEOF (gpointer);
4596 case MONO_TYPE_VALUETYPE: {
4597 if (t->data.klass->enumtype)
4598 return mono_type_size (mono_class_enum_basetype (t->data.klass), align);
4600 return mono_class_value_size (t->data.klass, (guint32*)align);
4602 case MONO_TYPE_STRING:
4603 case MONO_TYPE_OBJECT:
4604 case MONO_TYPE_CLASS:
4605 case MONO_TYPE_SZARRAY:
4607 case MONO_TYPE_FNPTR:
4608 case MONO_TYPE_ARRAY:
4609 *align = MONO_ABI_ALIGNOF (gpointer);
4610 return MONO_ABI_SIZEOF (gpointer);
4611 case MONO_TYPE_TYPEDBYREF:
4612 return mono_class_value_size (mono_defaults.typed_reference_class, (guint32*)align);
4613 case MONO_TYPE_GENERICINST: {
4614 MonoGenericClass *gclass = t->data.generic_class;
4615 MonoClass *container_class = gclass->container_class;
4617 // g_assert (!gclass->inst->is_open);
4619 if (container_class->valuetype) {
4620 if (container_class->enumtype)
4621 return mono_type_size (mono_class_enum_basetype (container_class), align);
4623 return mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4625 *align = MONO_ABI_ALIGNOF (gpointer);
4626 return MONO_ABI_SIZEOF (gpointer);
4630 case MONO_TYPE_MVAR:
4631 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4632 *align = MONO_ABI_ALIGNOF (gpointer);
4633 return MONO_ABI_SIZEOF (gpointer);
4635 /* The gparam can only match types given by gshared_constraint */
4636 return mono_type_size (t->data.generic_param->gshared_constraint, align);
4640 g_error ("mono_type_size: type 0x%02x unknown", t->type);
4646 * mono_type_stack_size:
4647 * @t: the type to return the size it uses on the stack
4649 * Returns: the number of bytes required to hold an instance of this
4650 * type on the runtime stack
4653 mono_type_stack_size (MonoType *t, int *align)
4655 return mono_type_stack_size_internal (t, align, FALSE);
4659 mono_type_stack_size_internal (MonoType *t, int *align, gboolean allow_open)
4662 MonoTypeEnum simple_type;
4663 #if SIZEOF_VOID_P == SIZEOF_REGISTER
4664 int stack_slot_size = MONO_ABI_SIZEOF (gpointer);
4665 int stack_slot_align = MONO_ABI_ALIGNOF (gpointer);
4666 #elif SIZEOF_VOID_P < SIZEOF_REGISTER
4667 int stack_slot_size = SIZEOF_REGISTER;
4668 int stack_slot_align = SIZEOF_REGISTER;
4671 g_assert (t != NULL);
4677 *align = stack_slot_align;
4678 return stack_slot_size;
4681 simple_type = t->type;
4682 switch (simple_type) {
4683 case MONO_TYPE_BOOLEAN:
4684 case MONO_TYPE_CHAR:
4693 case MONO_TYPE_STRING:
4694 case MONO_TYPE_OBJECT:
4695 case MONO_TYPE_CLASS:
4696 case MONO_TYPE_SZARRAY:
4698 case MONO_TYPE_FNPTR:
4699 case MONO_TYPE_ARRAY:
4700 *align = stack_slot_align;
4701 return stack_slot_size;
4703 case MONO_TYPE_MVAR:
4704 g_assert (allow_open);
4705 if (!t->data.generic_param->gshared_constraint || t->data.generic_param->gshared_constraint->type == MONO_TYPE_VALUETYPE) {
4706 *align = stack_slot_align;
4707 return stack_slot_size;
4709 /* The gparam can only match types given by gshared_constraint */
4710 return mono_type_stack_size_internal (t->data.generic_param->gshared_constraint, align, allow_open);
4712 case MONO_TYPE_TYPEDBYREF:
4713 *align = stack_slot_align;
4714 return stack_slot_size * 3;
4716 *align = MONO_ABI_ALIGNOF (float);
4717 return sizeof (float);
4720 *align = MONO_ABI_ALIGNOF (gint64);
4721 return sizeof (gint64);
4723 *align = MONO_ABI_ALIGNOF (double);
4724 return sizeof (double);
4725 case MONO_TYPE_VALUETYPE: {
4728 if (t->data.klass->enumtype)
4729 return mono_type_stack_size_internal (mono_class_enum_basetype (t->data.klass), align, allow_open);
4731 size = mono_class_value_size (t->data.klass, (guint32*)align);
4733 *align = *align + stack_slot_align - 1;
4734 *align &= ~(stack_slot_align - 1);
4736 size += stack_slot_size - 1;
4737 size &= ~(stack_slot_size - 1);
4742 case MONO_TYPE_GENERICINST: {
4743 MonoGenericClass *gclass = t->data.generic_class;
4744 MonoClass *container_class = gclass->container_class;
4747 g_assert (!gclass->context.class_inst->is_open);
4749 if (container_class->valuetype) {
4750 if (container_class->enumtype)
4751 return mono_type_stack_size_internal (mono_class_enum_basetype (container_class), align, allow_open);
4753 guint32 size = mono_class_value_size (mono_class_from_mono_type (t), (guint32*)align);
4755 *align = *align + stack_slot_align - 1;
4756 *align &= ~(stack_slot_align - 1);
4758 size += stack_slot_size - 1;
4759 size &= ~(stack_slot_size - 1);
4764 *align = stack_slot_align;
4765 return stack_slot_size;
4769 g_error ("type 0x%02x unknown", t->type);
4775 mono_type_generic_inst_is_valuetype (MonoType *type)
4777 g_assert (type->type == MONO_TYPE_GENERICINST);
4778 return type->data.generic_class->container_class->valuetype;
4782 mono_metadata_generic_class_is_valuetype (MonoGenericClass *gclass)
4784 return gclass->container_class->valuetype;
4788 _mono_metadata_generic_class_equal (const MonoGenericClass *g1, const MonoGenericClass *g2, gboolean signature_only)
4790 MonoGenericInst *i1 = g1->context.class_inst;
4791 MonoGenericInst *i2 = g2->context.class_inst;
4793 if (g1->is_dynamic != g2->is_dynamic)
4795 if (!mono_metadata_class_equal (g1->container_class, g2->container_class, signature_only))
4797 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4799 return g1->is_tb_open == g2->is_tb_open;
4803 _mono_metadata_generic_class_container_equal (const MonoGenericClass *g1, MonoClass *c2, gboolean signature_only)
4805 MonoGenericInst *i1 = g1->context.class_inst;
4806 MonoGenericInst *i2 = c2->generic_container->context.class_inst;
4808 if (!mono_metadata_class_equal (g1->container_class, c2, signature_only))
4810 if (!mono_generic_inst_equal_full (i1, i2, signature_only))
4812 return !g1->is_tb_open;
4816 mono_metadata_generic_context_hash (const MonoGenericContext *context)
4818 /* FIXME: check if this seed is good enough */
4819 guint hash = 0xc01dfee7;
4820 if (context->class_inst)
4821 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->class_inst);
4822 if (context->method_inst)
4823 hash = ((hash << 5) - hash) ^ mono_metadata_generic_inst_hash (context->method_inst);
4828 mono_metadata_generic_context_equal (const MonoGenericContext *g1, const MonoGenericContext *g2)
4830 return g1->class_inst == g2->class_inst && g1->method_inst == g2->method_inst;
4834 * mono_metadata_str_hash:
4836 * This should be used instead of g_str_hash for computing hash codes visible
4837 * outside this module, since g_str_hash () is not guaranteed to be stable
4838 * (its not the same in eglib for example).
4841 mono_metadata_str_hash (gconstpointer v1)
4843 /* Same as g_str_hash () in glib */
4844 char *p = (char *) v1;
4849 hash = (hash << 5) - hash + *p;
4856 * mono_metadata_type_hash:
4859 * Computes an hash value for @t1 to be used in GHashTable.
4860 * The returned hash is guaranteed to be the same across executions.
4863 mono_metadata_type_hash (MonoType *t1)
4865 guint hash = t1->type;
4867 hash |= t1->byref << 6; /* do not collide with t1->type values */
4869 case MONO_TYPE_VALUETYPE:
4870 case MONO_TYPE_CLASS:
4871 case MONO_TYPE_SZARRAY: {
4872 MonoClass *klass = t1->data.klass;
4874 * Dynamic classes must not be hashed on their type since it can change
4875 * during runtime. For example, if we hash a reference type that is
4876 * later made into a valuetype.
4878 * This is specially problematic with generic instances since they are
4879 * inserted in a bunch of hash tables before been finished.
4881 if (image_is_dynamic (klass->image))
4882 return (t1->byref << 6) | mono_metadata_str_hash (klass->name);
4883 return ((hash << 5) - hash) ^ mono_metadata_str_hash (klass->name);
4886 return ((hash << 5) - hash) ^ mono_metadata_type_hash (t1->data.type);
4887 case MONO_TYPE_ARRAY:
4888 return ((hash << 5) - hash) ^ mono_metadata_type_hash (&t1->data.array->eklass->byval_arg);
4889 case MONO_TYPE_GENERICINST:
4890 return ((hash << 5) - hash) ^ mono_generic_class_hash (t1->data.generic_class);
4892 case MONO_TYPE_MVAR:
4893 return ((hash << 5) - hash) ^ mono_metadata_generic_param_hash (t1->data.generic_param);
4900 mono_metadata_generic_param_hash (MonoGenericParam *p)
4903 MonoGenericParamInfo *info;
4905 hash = (mono_generic_param_num (p) << 2);
4906 if (p->gshared_constraint)
4907 hash = ((hash << 5) - hash) ^ mono_metadata_type_hash (p->gshared_constraint);
4908 info = mono_generic_param_info (p);
4909 /* Can't hash on the owner klass/method, since those might not be set when this is called */
4911 hash = ((hash << 5) - hash) ^ info->token;
4916 mono_metadata_generic_param_equal_internal (MonoGenericParam *p1, MonoGenericParam *p2, gboolean signature_only)
4920 if (mono_generic_param_num (p1) != mono_generic_param_num (p2))
4922 if (p1->gshared_constraint && p2->gshared_constraint) {
4923 if (!mono_metadata_type_equal (p1->gshared_constraint, p2->gshared_constraint))
4926 if (p1->gshared_constraint != p2->gshared_constraint)
4931 * We have to compare the image as well because if we didn't,
4932 * the generic_inst_cache lookup wouldn't care about the image
4933 * of generic params, so what could happen is that a generic
4934 * inst with params from image A is put into the cache, then
4935 * image B gets that generic inst from the cache, image A is
4936 * unloaded, so the inst is deleted, but image B still retains
4939 if (mono_generic_param_owner (p1) == mono_generic_param_owner (p2))
4943 * If `signature_only' is true, we're comparing two (method) signatures.
4944 * In this case, the owner of two type parameters doesn't need to match.
4947 return signature_only;
4951 mono_metadata_generic_param_equal (MonoGenericParam *p1, MonoGenericParam *p2)
4953 return mono_metadata_generic_param_equal_internal (p1, p2, TRUE);
4957 mono_metadata_class_equal (MonoClass *c1, MonoClass *c2, gboolean signature_only)
4961 if (c1->generic_class && c2->generic_class)
4962 return _mono_metadata_generic_class_equal (c1->generic_class, c2->generic_class, signature_only);
4963 if (c1->generic_class && c2->generic_container)
4964 return _mono_metadata_generic_class_container_equal (c1->generic_class, c2, signature_only);
4965 if (c1->generic_container && c2->generic_class)
4966 return _mono_metadata_generic_class_container_equal (c2->generic_class, c1, signature_only);
4967 if ((c1->byval_arg.type == MONO_TYPE_VAR) && (c2->byval_arg.type == MONO_TYPE_VAR))
4968 return mono_metadata_generic_param_equal_internal (
4969 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4970 if ((c1->byval_arg.type == MONO_TYPE_MVAR) && (c2->byval_arg.type == MONO_TYPE_MVAR))
4971 return mono_metadata_generic_param_equal_internal (
4972 c1->byval_arg.data.generic_param, c2->byval_arg.data.generic_param, signature_only);
4973 if (signature_only &&
4974 (c1->byval_arg.type == MONO_TYPE_SZARRAY) && (c2->byval_arg.type == MONO_TYPE_SZARRAY))
4975 return mono_metadata_class_equal (c1->byval_arg.data.klass, c2->byval_arg.data.klass, signature_only);
4976 if (signature_only &&
4977 (c1->byval_arg.type == MONO_TYPE_ARRAY) && (c2->byval_arg.type == MONO_TYPE_ARRAY))
4978 return do_mono_metadata_type_equal (&c1->byval_arg, &c2->byval_arg, signature_only);
4983 mono_metadata_fnptr_equal (MonoMethodSignature *s1, MonoMethodSignature *s2, gboolean signature_only)
4985 gpointer iter1 = 0, iter2 = 0;
4989 if (s1->call_convention != s2->call_convention)
4991 if (s1->sentinelpos != s2->sentinelpos)
4993 if (s1->hasthis != s2->hasthis)
4995 if (s1->explicit_this != s2->explicit_this)
4997 if (! do_mono_metadata_type_equal (s1->ret, s2->ret, signature_only))
4999 if (s1->param_count != s2->param_count)
5003 MonoType *t1 = mono_signature_get_params (s1, &iter1);
5004 MonoType *t2 = mono_signature_get_params (s2, &iter2);
5006 if (t1 == NULL || t2 == NULL)
5008 if (! do_mono_metadata_type_equal (t1, t2, signature_only))
5014 * mono_metadata_type_equal:
5017 * @signature_only: If true, treat ginsts as equal which are instantiated separately but have equal positional value
5019 * Determine if @t1 and @t2 represent the same type.
5020 * Returns: #TRUE if @t1 and @t2 are equal.
5023 do_mono_metadata_type_equal (MonoType *t1, MonoType *t2, gboolean signature_only)
5025 if (t1->type != t2->type || t1->byref != t2->byref)
5029 case MONO_TYPE_VOID:
5030 case MONO_TYPE_BOOLEAN:
5031 case MONO_TYPE_CHAR:
5042 case MONO_TYPE_STRING:
5045 case MONO_TYPE_OBJECT:
5046 case MONO_TYPE_TYPEDBYREF:
5048 case MONO_TYPE_VALUETYPE:
5049 case MONO_TYPE_CLASS:
5050 case MONO_TYPE_SZARRAY:
5051 return mono_metadata_class_equal (t1->data.klass, t2->data.klass, signature_only);
5053 return do_mono_metadata_type_equal (t1->data.type, t2->data.type, signature_only);
5054 case MONO_TYPE_ARRAY:
5055 if (t1->data.array->rank != t2->data.array->rank)
5057 return mono_metadata_class_equal (t1->data.array->eklass, t2->data.array->eklass, signature_only);
5058 case MONO_TYPE_GENERICINST:
5059 return _mono_metadata_generic_class_equal (
5060 t1->data.generic_class, t2->data.generic_class, signature_only);
5062 return mono_metadata_generic_param_equal_internal (
5063 t1->data.generic_param, t2->data.generic_param, signature_only);
5064 case MONO_TYPE_MVAR:
5065 return mono_metadata_generic_param_equal_internal (
5066 t1->data.generic_param, t2->data.generic_param, signature_only);
5067 case MONO_TYPE_FNPTR:
5068 return mono_metadata_fnptr_equal (t1->data.method, t2->data.method, signature_only);
5070 g_error ("implement type compare for %0x!", t1->type);
5078 mono_metadata_type_equal (MonoType *t1, MonoType *t2)
5080 return do_mono_metadata_type_equal (t1, t2, FALSE);
5084 * mono_metadata_type_equal_full:
5087 * @signature_only: if signature only comparison should be made
5089 * Determine if @t1 and @t2 are signature compatible if @signature_only is #TRUE, otherwise
5090 * behaves the same way as mono_metadata_type_equal.
5091 * The function mono_metadata_type_equal(a, b) is just a shortcut for mono_metadata_type_equal_full(a, b, FALSE).
5092 * Returns: #TRUE if @t1 and @t2 are equal taking @signature_only into account.
5095 mono_metadata_type_equal_full (MonoType *t1, MonoType *t2, gboolean signature_only)
5097 return do_mono_metadata_type_equal (t1, t2, signature_only);
5101 * mono_metadata_signature_equal:
5102 * @sig1: a signature
5103 * @sig2: another signature
5105 * Determine if @sig1 and @sig2 represent the same signature, with the
5106 * same number of arguments and the same types.
5107 * Returns: #TRUE if @sig1 and @sig2 are equal.
5110 mono_metadata_signature_equal (MonoMethodSignature *sig1, MonoMethodSignature *sig2)
5114 if (sig1->hasthis != sig2->hasthis || sig1->param_count != sig2->param_count)
5117 if (sig1->generic_param_count != sig2->generic_param_count)
5121 * We're just comparing the signatures of two methods here:
5123 * If we have two generic methods `void Foo<U> (U u)' and `void Bar<V> (V v)',
5124 * U and V are equal here.
5126 * That's what the `signature_only' argument of do_mono_metadata_type_equal() is for.
5129 for (i = 0; i < sig1->param_count; i++) {
5130 MonoType *p1 = sig1->params[i];
5131 MonoType *p2 = sig2->params[i];
5133 /* if (p1->attrs != p2->attrs)
5136 if (!do_mono_metadata_type_equal (p1, p2, TRUE))
5140 if (!do_mono_metadata_type_equal (sig1->ret, sig2->ret, TRUE))
5146 * mono_metadata_type_dup:
5147 * @image: image to alloc memory from
5148 * @original: type to duplicate
5150 * Returns: copy of type allocated from the image's mempool (or from the heap, if @image is null).
5153 mono_metadata_type_dup (MonoImage *image, const MonoType *o)
5156 int sizeof_o = MONO_SIZEOF_TYPE;
5158 sizeof_o += o->num_mods * sizeof (MonoCustomMod);
5160 r = image ? mono_image_alloc0 (image, sizeof_o) : g_malloc (sizeof_o);
5162 memcpy (r, o, sizeof_o);
5164 if (o->type == MONO_TYPE_PTR) {
5165 r->data.type = mono_metadata_type_dup (image, o->data.type);
5166 } else if (o->type == MONO_TYPE_ARRAY) {
5167 r->data.array = mono_dup_array_type (image, o->data.array);
5168 } else if (o->type == MONO_TYPE_FNPTR) {
5169 /*FIXME the dup'ed signature is leaked mono_metadata_free_type*/
5170 r->data.method = mono_metadata_signature_deep_dup (image, o->data.method);
5176 mono_signature_hash (MonoMethodSignature *sig)
5178 guint i, res = sig->ret->type;
5180 for (i = 0; i < sig->param_count; i++)
5181 res = (res << 5) - res + mono_type_hash (sig->params[i]);
5187 * mono_metadata_encode_value:
5188 * @value: value to encode
5189 * @buf: buffer where to write the compressed representation
5190 * @endbuf: pointer updated to point at the end of the encoded output
5192 * Encodes the value @value in the compressed representation used
5193 * in metadata and stores the result in @buf. @buf needs to be big
5194 * enough to hold the data (4 bytes).
5197 mono_metadata_encode_value (guint32 value, char *buf, char **endbuf)
5203 else if (value < 0x4000) {
5204 p [0] = 0x80 | (value >> 8);
5205 p [1] = value & 0xff;
5208 p [0] = (value >> 24) | 0xc0;
5209 p [1] = (value >> 16) & 0xff;
5210 p [2] = (value >> 8) & 0xff;
5211 p [3] = value & 0xff;
5219 * mono_metadata_field_info:
5220 * @meta: the Image the field is defined in
5221 * @index: the index in the field table representing the field
5222 * @offset: a pointer to an integer where to store the offset that
5223 * may have been specified for the field in a FieldLayout table
5224 * @rva: a pointer to the RVA of the field data in the image that
5225 * may have been defined in a FieldRVA table
5226 * @marshal_spec: a pointer to the marshal spec that may have been
5227 * defined for the field in a FieldMarshal table.
5229 * Gather info for field @index that may have been defined in the FieldLayout,
5230 * FieldRVA and FieldMarshal tables.
5231 * Either of offset, rva and marshal_spec can be NULL if you're not interested
5235 mono_metadata_field_info (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5236 MonoMarshalSpec **marshal_spec)
5238 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, FALSE);
5242 mono_metadata_field_info_with_mempool (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5243 MonoMarshalSpec **marshal_spec)
5245 mono_metadata_field_info_full (meta, index, offset, rva, marshal_spec, TRUE);
5249 mono_metadata_field_info_full (MonoImage *meta, guint32 index, guint32 *offset, guint32 *rva,
5250 MonoMarshalSpec **marshal_spec, gboolean alloc_from_image)
5252 MonoTableInfo *tdef;
5255 loc.idx = index + 1;
5256 if (meta->uncompressed_metadata)
5257 loc.idx = search_ptr_table (meta, MONO_TABLE_FIELD_POINTER, loc.idx);
5260 tdef = &meta->tables [MONO_TABLE_FIELDLAYOUT];
5262 loc.col_idx = MONO_FIELD_LAYOUT_FIELD;
5265 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5266 *offset = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_LAYOUT_OFFSET);
5268 *offset = (guint32)-1;
5272 tdef = &meta->tables [MONO_TABLE_FIELDRVA];
5274 loc.col_idx = MONO_FIELD_RVA_FIELD;
5277 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5279 * LAMESPEC: There is no signature, no nothing, just the raw data.
5281 *rva = mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_RVA_RVA);
5289 if ((p = mono_metadata_get_marshal_info (meta, index, TRUE))) {
5290 *marshal_spec = mono_metadata_parse_marshal_spec_full (alloc_from_image ? meta : NULL, meta, p);
5297 * mono_metadata_get_constant_index:
5298 * @meta: the Image the field is defined in
5299 * @index: the token that may have a row defined in the constants table
5300 * @hint: possible position for the row
5302 * @token must be a FieldDef, ParamDef or PropertyDef token.
5304 * Returns: the index into the Constants table or 0 if not found.
5307 mono_metadata_get_constant_index (MonoImage *meta, guint32 token, guint32 hint)
5309 MonoTableInfo *tdef;
5311 guint32 index = mono_metadata_token_index (token);
5313 tdef = &meta->tables [MONO_TABLE_CONSTANT];
5314 index <<= MONO_HASCONSTANT_BITS;
5315 switch (mono_metadata_token_table (token)) {
5316 case MONO_TABLE_FIELD:
5317 index |= MONO_HASCONSTANT_FIEDDEF;
5319 case MONO_TABLE_PARAM:
5320 index |= MONO_HASCONSTANT_PARAM;
5322 case MONO_TABLE_PROPERTY:
5323 index |= MONO_HASCONSTANT_PROPERTY;
5326 g_warning ("Not a valid token for the constant table: 0x%08x", token);
5330 loc.col_idx = MONO_CONSTANT_PARENT;
5333 /* FIXME: Index translation */
5335 if ((hint > 0) && (hint < tdef->rows) && (mono_metadata_decode_row_col (tdef, hint - 1, MONO_CONSTANT_PARENT) == index))
5338 if (tdef->base && mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator)) {
5339 return loc.result + 1;
5345 * mono_metadata_events_from_typedef:
5346 * @meta: metadata context
5347 * @index: 0-based index (in the TypeDef table) describing a type
5349 * Returns: the 0-based index in the Event table for the events in the
5350 * type. The last event that belongs to the type (plus 1) is stored
5351 * in the @end_idx pointer.
5354 mono_metadata_events_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5358 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_EVENTMAP];
5366 loc.col_idx = MONO_EVENT_MAP_PARENT;
5367 loc.idx = index + 1;
5369 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5372 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_EVENT_MAP_EVENTLIST);
5373 if (loc.result + 1 < tdef->rows) {
5374 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_EVENT_MAP_EVENTLIST) - 1;
5376 end = meta->tables [MONO_TABLE_EVENT].rows;
5384 * mono_metadata_methods_from_event:
5385 * @meta: metadata context
5386 * @index: 0-based index (in the Event table) describing a event
5388 * Returns: the 0-based index in the MethodDef table for the methods in the
5389 * event. The last method that belongs to the event (plus 1) is stored
5390 * in the @end_idx pointer.
5393 mono_metadata_methods_from_event (MonoImage *meta, guint32 index, guint *end_idx)
5397 guint32 cols [MONO_METHOD_SEMA_SIZE];
5398 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5404 if (meta->uncompressed_metadata)
5405 index = search_ptr_table (meta, MONO_TABLE_EVENT_POINTER, index + 1) - 1;
5408 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5409 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_EVENT; /* Method association coded index */
5411 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5416 * We may end up in the middle of the rows...
5419 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5425 while (end < msemt->rows) {
5426 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5427 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5436 * mono_metadata_properties_from_typedef:
5437 * @meta: metadata context
5438 * @index: 0-based index (in the TypeDef table) describing a type
5440 * Returns: the 0-based index in the Property table for the properties in the
5441 * type. The last property that belongs to the type (plus 1) is stored
5442 * in the @end_idx pointer.
5445 mono_metadata_properties_from_typedef (MonoImage *meta, guint32 index, guint *end_idx)
5449 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_PROPERTYMAP];
5457 loc.col_idx = MONO_PROPERTY_MAP_PARENT;
5458 loc.idx = index + 1;
5460 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5463 start = mono_metadata_decode_row_col (tdef, loc.result, MONO_PROPERTY_MAP_PROPERTY_LIST);
5464 if (loc.result + 1 < tdef->rows) {
5465 end = mono_metadata_decode_row_col (tdef, loc.result + 1, MONO_PROPERTY_MAP_PROPERTY_LIST) - 1;
5467 end = meta->tables [MONO_TABLE_PROPERTY].rows;
5475 * mono_metadata_methods_from_property:
5476 * @meta: metadata context
5477 * @index: 0-based index (in the PropertyDef table) describing a property
5479 * Returns: the 0-based index in the MethodDef table for the methods in the
5480 * property. The last method that belongs to the property (plus 1) is stored
5481 * in the @end_idx pointer.
5484 mono_metadata_methods_from_property (MonoImage *meta, guint32 index, guint *end_idx)
5488 guint32 cols [MONO_METHOD_SEMA_SIZE];
5489 MonoTableInfo *msemt = &meta->tables [MONO_TABLE_METHODSEMANTICS];
5495 if (meta->uncompressed_metadata)
5496 index = search_ptr_table (meta, MONO_TABLE_PROPERTY_POINTER, index + 1) - 1;
5499 loc.col_idx = MONO_METHOD_SEMA_ASSOCIATION;
5500 loc.idx = ((index + 1) << MONO_HAS_SEMANTICS_BITS) | MONO_HAS_SEMANTICS_PROPERTY; /* Method association coded index */
5502 if (!mono_binary_search (&loc, msemt->base, msemt->rows, msemt->row_size, table_locator))
5507 * We may end up in the middle of the rows...
5510 if (loc.idx == mono_metadata_decode_row_col (msemt, start - 1, MONO_METHOD_SEMA_ASSOCIATION))
5516 while (end < msemt->rows) {
5517 mono_metadata_decode_row (msemt, end, cols, MONO_METHOD_SEMA_SIZE);
5518 if (cols [MONO_METHOD_SEMA_ASSOCIATION] != loc.idx)
5527 mono_metadata_implmap_from_method (MonoImage *meta, guint32 method_idx)
5530 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_IMPLMAP];
5535 /* No index translation seems to be needed */
5538 loc.col_idx = MONO_IMPLMAP_MEMBER;
5539 loc.idx = ((method_idx + 1) << MONO_MEMBERFORWD_BITS) | MONO_MEMBERFORWD_METHODDEF;
5541 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5544 return loc.result + 1;
5548 * @image: context where the image is created
5549 * @type_spec: typespec token
5550 * @deprecated use mono_type_create_from_typespec_checked that has proper error handling
5552 * Creates a MonoType representing the TypeSpec indexed by the @type_spec
5556 mono_type_create_from_typespec (MonoImage *image, guint32 type_spec)
5559 MonoType *type = mono_type_create_from_typespec_checked (image, type_spec, &error);
5561 g_error ("Could not create typespec %x due to %s", type_spec, mono_error_get_message (&error));
5566 mono_type_create_from_typespec_checked (MonoImage *image, guint32 type_spec, MonoError *error)
5569 guint32 idx = mono_metadata_token_index (type_spec);
5571 guint32 cols [MONO_TYPESPEC_SIZE];
5573 MonoType *type, *type2;
5575 mono_error_init (error);
5577 mono_image_lock (image);
5578 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5579 mono_image_unlock (image);
5583 t = &image->tables [MONO_TABLE_TYPESPEC];
5585 mono_metadata_decode_row (t, idx-1, cols, MONO_TYPESPEC_SIZE);
5586 ptr = mono_metadata_blob_heap (image, cols [MONO_TYPESPEC_SIGNATURE]);
5588 if (!mono_verifier_verify_typespec_signature (image, cols [MONO_TYPESPEC_SIGNATURE], type_spec, NULL)) {
5589 mono_error_set_bad_image (error, image, "Could not verify type spec %08x.", type_spec);
5593 mono_metadata_decode_value (ptr, &ptr);
5595 type = mono_metadata_parse_type_checked (image, NULL, 0, TRUE, ptr, &ptr, error);
5599 type2 = mono_metadata_type_dup (image, type);
5600 mono_metadata_free_type (type);
5602 mono_image_lock (image);
5603 type = g_hash_table_lookup (image->typespec_cache, GUINT_TO_POINTER (type_spec));
5604 /* We might leak some data in the image mempool if found */
5606 g_hash_table_insert (image->typespec_cache, GUINT_TO_POINTER (type_spec), type2);
5609 mono_image_unlock (image);
5616 mono_image_strndup (MonoImage *image, const char *data, guint len)
5620 return g_strndup (data, len);
5621 res = mono_image_alloc (image, len + 1);
5622 memcpy (res, data, len);
5628 mono_metadata_parse_marshal_spec (MonoImage *image, const char *ptr)
5630 return mono_metadata_parse_marshal_spec_full (NULL, image, ptr);
5634 * If IMAGE is non-null, memory will be allocated from its mempool, otherwise it will be allocated using malloc.
5635 * PARENT_IMAGE is the image containing the marshal spec.
5638 mono_metadata_parse_marshal_spec_full (MonoImage *image, MonoImage *parent_image, const char *ptr)
5640 MonoMarshalSpec *res;
5642 const char *start = ptr;
5644 /* fixme: this is incomplete, but I cant find more infos in the specs */
5647 res = mono_image_alloc0 (image, sizeof (MonoMarshalSpec));
5649 res = g_new0 (MonoMarshalSpec, 1);
5651 len = mono_metadata_decode_value (ptr, &ptr);
5652 res->native = *ptr++;
5654 if (res->native == MONO_NATIVE_LPARRAY) {
5655 res->data.array_data.param_num = -1;
5656 res->data.array_data.num_elem = -1;
5657 res->data.array_data.elem_mult = -1;
5659 if (ptr - start <= len)
5660 res->data.array_data.elem_type = *ptr++;
5661 if (ptr - start <= len)
5662 res->data.array_data.param_num = mono_metadata_decode_value (ptr, &ptr);
5663 if (ptr - start <= len)
5664 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5665 if (ptr - start <= len) {
5667 * LAMESPEC: Older spec versions say this parameter comes before
5668 * num_elem. Never spec versions don't talk about elem_mult at
5669 * all, but csc still emits it, and it is used to distinguish
5670 * between param_num being 0, and param_num being omitted.
5671 * So if (param_num == 0) && (num_elem > 0), then
5672 * elem_mult == 0 -> the array size is num_elem
5673 * elem_mult == 1 -> the array size is @param_num + num_elem
5675 res->data.array_data.elem_mult = mono_metadata_decode_value (ptr, &ptr);
5679 if (res->native == MONO_NATIVE_BYVALTSTR) {
5680 if (ptr - start <= len)
5681 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5684 if (res->native == MONO_NATIVE_BYVALARRAY) {
5685 if (ptr - start <= len)
5686 res->data.array_data.num_elem = mono_metadata_decode_value (ptr, &ptr);
5689 if (res->native == MONO_NATIVE_CUSTOM) {
5690 /* skip unused type guid */
5691 len = mono_metadata_decode_value (ptr, &ptr);
5693 /* skip unused native type name */
5694 len = mono_metadata_decode_value (ptr, &ptr);
5696 /* read custom marshaler type name */
5697 len = mono_metadata_decode_value (ptr, &ptr);
5698 res->data.custom_data.custom_name = mono_image_strndup (image, ptr, len);
5700 /* read cookie string */
5701 len = mono_metadata_decode_value (ptr, &ptr);
5702 res->data.custom_data.cookie = mono_image_strndup (image, ptr, len);
5703 res->data.custom_data.image = parent_image;
5706 if (res->native == MONO_NATIVE_SAFEARRAY) {
5707 res->data.safearray_data.elem_type = 0;
5708 res->data.safearray_data.num_elem = 0;
5709 if (ptr - start <= len)
5710 res->data.safearray_data.elem_type = *ptr++;
5711 if (ptr - start <= len)
5712 res->data.safearray_data.num_elem = *ptr++;
5718 mono_metadata_free_marshal_spec (MonoMarshalSpec *spec)
5720 if (spec->native == MONO_NATIVE_CUSTOM) {
5721 g_free (spec->data.custom_data.custom_name);
5722 g_free (spec->data.custom_data.cookie);
5728 * mono_type_to_unmanaged:
5730 * Returns: A MonoMarshalNative enumeration value (MONO_NATIVE_) value
5731 * describing the underlying native reprensetation of the type.
5733 * In addition the value pointed by
5734 * "conv" will contain the kind of marshalling required for this
5735 * particular type one of the MONO_MARSHAL_CONV_ enumeration values.
5738 mono_type_to_unmanaged (MonoType *type, MonoMarshalSpec *mspec, gboolean as_field,
5739 gboolean unicode, MonoMarshalConv *conv)
5741 MonoMarshalConv dummy_conv;
5747 *conv = MONO_MARSHAL_CONV_NONE;
5750 return MONO_NATIVE_UINT;
5754 case MONO_TYPE_BOOLEAN:
5756 switch (mspec->native) {
5757 case MONO_NATIVE_VARIANTBOOL:
5758 *conv = MONO_MARSHAL_CONV_BOOL_VARIANTBOOL;
5759 return MONO_NATIVE_VARIANTBOOL;
5760 case MONO_NATIVE_BOOLEAN:
5761 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5762 return MONO_NATIVE_BOOLEAN;
5763 case MONO_NATIVE_I1:
5764 case MONO_NATIVE_U1:
5765 return mspec->native;
5767 g_error ("cant marshal bool to native type %02x", mspec->native);
5770 *conv = MONO_MARSHAL_CONV_BOOL_I4;
5771 return MONO_NATIVE_BOOLEAN;
5772 case MONO_TYPE_CHAR:
5774 switch (mspec->native) {
5775 case MONO_NATIVE_U2:
5776 case MONO_NATIVE_U1:
5777 return mspec->native;
5779 g_error ("cant marshal char to native type %02x", mspec->native);
5782 return unicode ? MONO_NATIVE_U2 : MONO_NATIVE_U1;
5783 case MONO_TYPE_I1: return MONO_NATIVE_I1;
5784 case MONO_TYPE_U1: return MONO_NATIVE_U1;
5785 case MONO_TYPE_I2: return MONO_NATIVE_I2;
5786 case MONO_TYPE_U2: return MONO_NATIVE_U2;
5787 case MONO_TYPE_I4: return MONO_NATIVE_I4;
5788 case MONO_TYPE_U4: return MONO_NATIVE_U4;
5789 case MONO_TYPE_I8: return MONO_NATIVE_I8;
5790 case MONO_TYPE_U8: return MONO_NATIVE_U8;
5791 case MONO_TYPE_R4: return MONO_NATIVE_R4;
5792 case MONO_TYPE_R8: return MONO_NATIVE_R8;
5793 case MONO_TYPE_STRING:
5795 switch (mspec->native) {
5796 case MONO_NATIVE_BSTR:
5797 *conv = MONO_MARSHAL_CONV_STR_BSTR;
5798 return MONO_NATIVE_BSTR;
5799 case MONO_NATIVE_LPSTR:
5800 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5801 return MONO_NATIVE_LPSTR;
5802 case MONO_NATIVE_LPWSTR:
5803 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5804 return MONO_NATIVE_LPWSTR;
5805 case MONO_NATIVE_LPTSTR:
5806 *conv = MONO_MARSHAL_CONV_STR_LPTSTR;
5807 return MONO_NATIVE_LPTSTR;
5808 case MONO_NATIVE_ANSIBSTR:
5809 *conv = MONO_MARSHAL_CONV_STR_ANSIBSTR;
5810 return MONO_NATIVE_ANSIBSTR;
5811 case MONO_NATIVE_TBSTR:
5812 *conv = MONO_MARSHAL_CONV_STR_TBSTR;
5813 return MONO_NATIVE_TBSTR;
5814 case MONO_NATIVE_BYVALTSTR:
5816 *conv = MONO_MARSHAL_CONV_STR_BYVALWSTR;
5818 *conv = MONO_MARSHAL_CONV_STR_BYVALSTR;
5819 return MONO_NATIVE_BYVALTSTR;
5821 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);
5825 *conv = MONO_MARSHAL_CONV_STR_LPWSTR;
5826 return MONO_NATIVE_LPWSTR;
5829 *conv = MONO_MARSHAL_CONV_STR_LPSTR;
5830 return MONO_NATIVE_LPSTR;
5832 case MONO_TYPE_PTR: return MONO_NATIVE_UINT;
5833 case MONO_TYPE_VALUETYPE: /*FIXME*/
5834 if (type->data.klass->enumtype) {
5835 t = mono_class_enum_basetype (type->data.klass)->type;
5838 if (type->data.klass == mono_defaults.handleref_class){
5839 *conv = MONO_MARSHAL_CONV_HANDLEREF;
5840 return MONO_NATIVE_INT;
5842 return MONO_NATIVE_STRUCT;
5843 case MONO_TYPE_SZARRAY:
5844 case MONO_TYPE_ARRAY:
5846 switch (mspec->native) {
5847 case MONO_NATIVE_BYVALARRAY:
5848 if ((type->data.klass->element_class == mono_defaults.char_class) && !unicode)
5849 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALCHARARRAY;
5851 *conv = MONO_MARSHAL_CONV_ARRAY_BYVALARRAY;
5852 return MONO_NATIVE_BYVALARRAY;
5853 case MONO_NATIVE_SAFEARRAY:
5854 *conv = MONO_MARSHAL_CONV_ARRAY_SAVEARRAY;
5855 return MONO_NATIVE_SAFEARRAY;
5856 case MONO_NATIVE_LPARRAY:
5857 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5858 return MONO_NATIVE_LPARRAY;
5860 g_error ("cant marshal array as native type %02x", mspec->native);
5864 *conv = MONO_MARSHAL_CONV_ARRAY_LPARRAY;
5865 return MONO_NATIVE_LPARRAY;
5866 case MONO_TYPE_I: return MONO_NATIVE_INT;
5867 case MONO_TYPE_U: return MONO_NATIVE_UINT;
5868 case MONO_TYPE_CLASS:
5869 case MONO_TYPE_OBJECT: {
5870 /* FIXME : we need to handle ArrayList and StringBuilder here, probably */
5872 switch (mspec->native) {
5873 case MONO_NATIVE_STRUCT:
5874 return MONO_NATIVE_STRUCT;
5875 case MONO_NATIVE_CUSTOM:
5876 return MONO_NATIVE_CUSTOM;
5877 case MONO_NATIVE_INTERFACE:
5878 *conv = MONO_MARSHAL_CONV_OBJECT_INTERFACE;
5879 return MONO_NATIVE_INTERFACE;
5880 case MONO_NATIVE_IDISPATCH:
5881 *conv = MONO_MARSHAL_CONV_OBJECT_IDISPATCH;
5882 return MONO_NATIVE_IDISPATCH;
5883 case MONO_NATIVE_IUNKNOWN:
5884 *conv = MONO_MARSHAL_CONV_OBJECT_IUNKNOWN;
5885 return MONO_NATIVE_IUNKNOWN;
5886 case MONO_NATIVE_FUNC:
5887 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5888 type->data.klass == mono_defaults.delegate_class ||
5889 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5890 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5891 return MONO_NATIVE_FUNC;
5895 g_error ("cant marshal object as native type %02x", mspec->native);
5898 if (t == MONO_TYPE_CLASS && (type->data.klass == mono_defaults.multicastdelegate_class ||
5899 type->data.klass == mono_defaults.delegate_class ||
5900 type->data.klass->parent == mono_defaults.multicastdelegate_class)) {
5901 *conv = MONO_MARSHAL_CONV_DEL_FTN;
5902 return MONO_NATIVE_FUNC;
5904 if (mono_defaults.safehandle_class && type->data.klass == mono_defaults.safehandle_class){
5905 *conv = MONO_MARSHAL_CONV_SAFEHANDLE;
5906 return MONO_NATIVE_INT;
5908 *conv = MONO_MARSHAL_CONV_OBJECT_STRUCT;
5909 return MONO_NATIVE_STRUCT;
5911 case MONO_TYPE_FNPTR: return MONO_NATIVE_FUNC;
5912 case MONO_TYPE_GENERICINST:
5913 type = &type->data.generic_class->container_class->byval_arg;
5916 case MONO_TYPE_TYPEDBYREF:
5918 g_error ("type 0x%02x not handled in marshal", t);
5920 return MONO_NATIVE_MAX;
5924 mono_metadata_get_marshal_info (MonoImage *meta, guint32 idx, gboolean is_field)
5927 MonoTableInfo *tdef = &meta->tables [MONO_TABLE_FIELDMARSHAL];
5933 loc.col_idx = MONO_FIELD_MARSHAL_PARENT;
5934 loc.idx = ((idx + 1) << MONO_HAS_FIELD_MARSHAL_BITS) | (is_field? MONO_HAS_FIELD_MARSHAL_FIELDSREF: MONO_HAS_FIELD_MARSHAL_PARAMDEF);
5936 /* FIXME: Index translation */
5938 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
5941 return mono_metadata_blob_heap (meta, mono_metadata_decode_row_col (tdef, loc.result, MONO_FIELD_MARSHAL_NATIVE_TYPE));
5945 method_from_method_def_or_ref (MonoImage *m, guint32 tok, MonoGenericContext *context, MonoError *error)
5947 MonoMethod *result = NULL;
5948 guint32 idx = tok >> MONO_METHODDEFORREF_BITS;
5950 mono_error_init (error);
5952 switch (tok & MONO_METHODDEFORREF_MASK) {
5953 case MONO_METHODDEFORREF_METHODDEF:
5954 result = mono_get_method_checked (m, MONO_TOKEN_METHOD_DEF | idx, NULL, context, error);
5956 case MONO_METHODDEFORREF_METHODREF:
5957 result = mono_get_method_checked (m, MONO_TOKEN_MEMBER_REF | idx, NULL, context, error);
5960 mono_error_set_bad_image (error, m, "Invalid MethodDefOfRef token %x", tok);
5967 * mono_class_get_overrides_full:
5969 * Return the method overrides belonging to class @type_token in @overrides, and
5970 * the number of overrides in @num_overrides.
5972 * Returns: TRUE on success, FALSE on failure.
5975 mono_class_get_overrides_full (MonoImage *image, guint32 type_token, MonoMethod ***overrides, gint32 *num_overrides,
5976 MonoGenericContext *generic_context)
5980 MonoTableInfo *tdef = &image->tables [MONO_TABLE_METHODIMPL];
5983 guint32 cols [MONO_METHODIMPL_SIZE];
5984 MonoMethod **result;
5995 loc.col_idx = MONO_METHODIMPL_CLASS;
5996 loc.idx = mono_metadata_token_index (type_token);
5998 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6004 * We may end up in the middle of the rows...
6007 if (loc.idx == mono_metadata_decode_row_col (tdef, start - 1, MONO_METHODIMPL_CLASS))
6012 while (end < tdef->rows) {
6013 if (loc.idx == mono_metadata_decode_row_col (tdef, end, MONO_METHODIMPL_CLASS))
6019 result = g_new (MonoMethod*, num * 2);
6020 for (i = 0; i < num; ++i) {
6023 if (!mono_verifier_verify_methodimpl_row (image, start + i, &error)) {
6024 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6029 mono_metadata_decode_row (tdef, start + i, cols, MONO_METHODIMPL_SIZE);
6030 method = method_from_method_def_or_ref (
6031 image, cols [MONO_METHODIMPL_DECLARATION], generic_context, &error);
6032 if (method == NULL) {
6033 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6036 result [i * 2] = method;
6037 method = method_from_method_def_or_ref (
6038 image, cols [MONO_METHODIMPL_BODY], generic_context, &error);
6039 if (method == NULL) {
6040 mono_error_cleanup (&error); /* FIXME don't swallow the error */
6043 result [i * 2 + 1] = method;
6046 *overrides = result;
6048 *num_overrides = num;
6053 * mono_guid_to_string:
6055 * Converts a 16 byte Microsoft GUID to the standard string representation.
6058 mono_guid_to_string (const guint8 *guid)
6060 return g_strdup_printf ("%02X%02X%02X%02X-%02X%02X-%02X%02X-%02X%02X-%02X%02X%02X%02X%02X%02X",
6061 guid[3], guid[2], guid[1], guid[0],
6065 guid[10], guid[11], guid[12], guid[13], guid[14], guid[15]);
6069 get_constraints (MonoImage *image, int owner, MonoClass ***constraints, MonoGenericContainer *container, MonoError *error)
6071 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAMCONSTRAINT];
6072 guint32 cols [MONO_GENPARCONSTRAINT_SIZE];
6073 guint32 i, token, found;
6074 MonoClass *klass, **res;
6075 GSList *cons = NULL, *tmp;
6076 MonoGenericContext *context = &container->context;
6078 mono_error_init (error);
6080 *constraints = NULL;
6082 for (i = 0; i < tdef->rows; ++i) {
6083 mono_metadata_decode_row (tdef, i, cols, MONO_GENPARCONSTRAINT_SIZE);
6084 if (cols [MONO_GENPARCONSTRAINT_GENERICPAR] == owner) {
6085 token = mono_metadata_token_from_dor (cols [MONO_GENPARCONSTRAINT_CONSTRAINT]);
6086 klass = mono_class_get_and_inflate_typespec_checked (image, token, context, error);
6088 g_slist_free (cons);
6091 cons = g_slist_append (cons, klass);
6094 /* contiguous list finished */
6101 res = mono_image_alloc0 (image, sizeof (MonoClass*) * (found + 1));
6102 for (i = 0, tmp = cons; i < found; ++i, tmp = tmp->next) {
6103 res [i] = tmp->data;
6105 g_slist_free (cons);
6111 * mono_metadata_get_generic_param_row:
6114 * @token: TypeOrMethodDef token, owner for GenericParam
6115 * @owner: coded token, set on return
6117 * Returns: 1-based row-id in the GenericParam table whose
6118 * owner is @token. 0 if not found.
6121 mono_metadata_get_generic_param_row (MonoImage *image, guint32 token, guint32 *owner)
6123 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6130 if (mono_metadata_token_table (token) == MONO_TABLE_TYPEDEF)
6131 *owner = MONO_TYPEORMETHOD_TYPE;
6132 else if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6133 *owner = MONO_TYPEORMETHOD_METHOD;
6135 g_error ("wrong token %x to get_generic_param_row", token);
6138 *owner |= mono_metadata_token_index (token) << MONO_TYPEORMETHOD_BITS;
6141 loc.col_idx = MONO_GENERICPARAM_OWNER;
6144 if (!mono_binary_search (&loc, tdef->base, tdef->rows, tdef->row_size, table_locator))
6147 /* Find the first entry by searching backwards */
6148 while ((loc.result > 0) && (mono_metadata_decode_row_col (tdef, loc.result - 1, MONO_GENERICPARAM_OWNER) == loc.idx))
6151 return loc.result + 1;
6155 mono_metadata_has_generic_params (MonoImage *image, guint32 token)
6158 return mono_metadata_get_generic_param_row (image, token, &owner);
6162 * Memory is allocated from IMAGE's mempool.
6165 mono_metadata_load_generic_param_constraints_checked (MonoImage *image, guint32 token,
6166 MonoGenericContainer *container, MonoError *error)
6169 guint32 start_row, i, owner;
6170 mono_error_init (error);
6172 if (! (start_row = mono_metadata_get_generic_param_row (image, token, &owner)))
6174 for (i = 0; i < container->type_argc; i++) {
6175 if (!get_constraints (image, start_row + i, &mono_generic_container_get_param_info (container, i)->constraints, container, error)) {
6176 mono_loader_assert_no_error ();
6184 * mono_metadata_load_generic_params:
6186 * Load the type parameters from the type or method definition @token.
6188 * Use this method after parsing a type or method definition to figure out whether it's a generic
6189 * type / method. When parsing a method definition, @parent_container points to the generic container
6190 * of the current class, if any.
6192 * Note: This method does not load the constraints: for typedefs, this has to be done after fully
6193 * creating the type.
6195 * Returns: NULL if @token is not a generic type or method definition or the new generic container.
6197 * LOCKING: Acquires the loader lock
6200 MonoGenericContainer *
6201 mono_metadata_load_generic_params (MonoImage *image, guint32 token, MonoGenericContainer *parent_container)
6203 MonoTableInfo *tdef = &image->tables [MONO_TABLE_GENERICPARAM];
6204 guint32 cols [MONO_GENERICPARAM_SIZE];
6205 guint32 i, owner = 0, n;
6206 MonoGenericContainer *container;
6207 MonoGenericParamFull *params;
6208 MonoGenericContext *context;
6210 if (!(i = mono_metadata_get_generic_param_row (image, token, &owner)))
6212 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6215 container = mono_image_alloc0 (image, sizeof (MonoGenericContainer));
6216 container->owner.image = image; // Temporarily mark as anonymous, but this will be overriden by caller
6217 container->is_anonymous = TRUE;
6220 params = g_realloc (params, sizeof (MonoGenericParamFull) * n);
6221 memset (¶ms [n - 1], 0, sizeof (MonoGenericParamFull));
6222 params [n - 1].param.owner = container;
6223 params [n - 1].param.num = cols [MONO_GENERICPARAM_NUMBER];
6224 params [n - 1].info.token = i | MONO_TOKEN_GENERIC_PARAM;
6225 params [n - 1].info.flags = cols [MONO_GENERICPARAM_FLAGS];
6226 params [n - 1].info.name = mono_metadata_string_heap (image, cols [MONO_GENERICPARAM_NAME]);
6227 if (params [n - 1].param.num != n - 1)
6228 g_warning ("GenericParam table unsorted or hole in generic param sequence: token %d", i);
6229 if (++i > tdef->rows)
6231 mono_metadata_decode_row (tdef, i - 1, cols, MONO_GENERICPARAM_SIZE);
6232 } while (cols [MONO_GENERICPARAM_OWNER] == owner);
6234 container->type_argc = n;
6235 container->type_params = mono_image_alloc0 (image, sizeof (MonoGenericParamFull) * n);
6236 memcpy (container->type_params, params, sizeof (MonoGenericParamFull) * n);
6238 container->parent = parent_container;
6240 if (mono_metadata_token_table (token) == MONO_TABLE_METHOD)
6241 container->is_method = 1;
6243 g_assert (container->parent == NULL || container->is_method);
6245 context = &container->context;
6246 if (container->is_method) {
6247 context->class_inst = container->parent ? container->parent->context.class_inst : NULL;
6248 context->method_inst = mono_get_shared_generic_inst (container);
6250 context->class_inst = mono_get_shared_generic_inst (container);
6257 mono_get_shared_generic_inst (MonoGenericContainer *container)
6259 MonoType **type_argv;
6261 MonoGenericInst *nginst;
6264 type_argv = g_new0 (MonoType *, container->type_argc);
6265 helper = g_new0 (MonoType, container->type_argc);
6267 for (i = 0; i < container->type_argc; i++) {
6268 MonoType *t = &helper [i];
6270 t->type = container->is_method ? MONO_TYPE_MVAR : MONO_TYPE_VAR;
6271 t->data.generic_param = mono_generic_container_get_param (container, i);
6276 nginst = mono_metadata_get_generic_inst (container->type_argc, type_argv);
6285 * mono_type_is_byref:
6286 * @type: the MonoType operated on
6288 * Returns: #TRUE if @type represents a type passed by reference,
6292 mono_type_is_byref (MonoType *type)
6298 * mono_type_get_type:
6299 * @type: the MonoType operated on
6301 * Returns: the IL type value for @type. This is one of the MonoTypeEnum
6302 * enum members like MONO_TYPE_I4 or MONO_TYPE_STRING.
6305 mono_type_get_type (MonoType *type)
6311 * mono_type_get_signature:
6312 * @type: the MonoType operated on
6314 * It is only valid to call this function if @type is a MONO_TYPE_FNPTR.
6316 * Returns: the MonoMethodSignature pointer that describes the signature
6317 * of the function pointer @type represents.
6319 MonoMethodSignature*
6320 mono_type_get_signature (MonoType *type)
6322 g_assert (type->type == MONO_TYPE_FNPTR);
6323 return type->data.method;
6327 * mono_type_get_class:
6328 * @type: the MonoType operated on
6330 * It is only valid to call this function if @type is a MONO_TYPE_CLASS or a
6331 * MONO_TYPE_VALUETYPE. For more general functionality, use mono_class_from_mono_type (),
6334 * Returns: the MonoClass pointer that describes the class that @type represents.
6337 mono_type_get_class (MonoType *type)
6339 /* FIXME: review the runtime users before adding the assert here */
6340 return type->data.klass;
6344 * mono_type_get_array_type:
6345 * @type: the MonoType operated on
6347 * It is only valid to call this function if @type is a MONO_TYPE_ARRAY.
6349 * Returns: a MonoArrayType struct describing the array type that @type
6350 * represents. The info includes details such as rank, array element type
6351 * and the sizes and bounds of multidimensional arrays.
6354 mono_type_get_array_type (MonoType *type)
6356 return type->data.array;
6360 * mono_type_get_ptr_type:
6361 * @type: the MonoType operated on
6363 * It is only valid to call this function if @type is a MONO_TYPE_PTR.
6366 * Returns: the MonoType pointer that describes the type that @type
6367 * represents a pointer to.
6370 mono_type_get_ptr_type (MonoType *type)
6372 g_assert (type->type == MONO_TYPE_PTR);
6373 return type->data.type;
6377 mono_type_get_modifiers (MonoType *type, gboolean *is_required, gpointer *iter)
6379 /* FIXME: implement */
6384 * mono_type_is_struct:
6385 * @type: the MonoType operated on
6387 * Returns: #TRUE is @type is a struct, that is a ValueType but not en enum
6388 * or a basic type like System.Int32. #FALSE otherwise.
6391 mono_type_is_struct (MonoType *type)
6393 return (!type->byref && ((type->type == MONO_TYPE_VALUETYPE &&
6394 !type->data.klass->enumtype) || (type->type == MONO_TYPE_TYPEDBYREF) ||
6395 ((type->type == MONO_TYPE_GENERICINST) &&
6396 mono_metadata_generic_class_is_valuetype (type->data.generic_class) &&
6397 !type->data.generic_class->container_class->enumtype)));
6401 * mono_type_is_void:
6402 * @type: the MonoType operated on
6404 * Returns: #TRUE is @type is System.Void. #FALSE otherwise.
6407 mono_type_is_void (MonoType *type)
6409 return (type && (type->type == MONO_TYPE_VOID) && !type->byref);
6413 * mono_type_is_pointer:
6414 * @type: the MonoType operated on
6416 * Returns: #TRUE is @type is a managed or unmanaged pointer type. #FALSE otherwise.
6419 mono_type_is_pointer (MonoType *type)
6421 return (type && ((type->byref || (type->type == MONO_TYPE_I) || type->type == MONO_TYPE_STRING)
6422 || (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6423 (type->type == MONO_TYPE_U) || (type->type == MONO_TYPE_OBJECT) ||
6424 (type->type == MONO_TYPE_ARRAY) || (type->type == MONO_TYPE_PTR) ||
6425 (type->type == MONO_TYPE_FNPTR)));
6429 * mono_type_is_reference:
6430 * @type: the MonoType operated on
6432 * Returns: #TRUE is @type represents an object reference . #FALSE otherwise.
6435 mono_type_is_reference (MonoType *type)
6437 return (type && (((type->type == MONO_TYPE_STRING) ||
6438 (type->type == MONO_TYPE_SZARRAY) || (type->type == MONO_TYPE_CLASS) ||
6439 (type->type == MONO_TYPE_OBJECT) || (type->type == MONO_TYPE_ARRAY)) ||
6440 ((type->type == MONO_TYPE_GENERICINST) &&
6441 !mono_metadata_generic_class_is_valuetype (type->data.generic_class))));
6445 * mono_signature_get_return_type:
6446 * @sig: the method signature inspected
6448 * Returns: the return type of the method signature @sig
6451 mono_signature_get_return_type (MonoMethodSignature *sig)
6457 * mono_signature_get_params:
6458 * @sig: the method signature inspected
6459 * #iter: pointer to an iterator
6461 * Iterates over the parameters for the method signature @sig.
6462 * A void* pointer must be initualized to #NULL to start the iteration
6463 * and it's address is passed to this function repeteadly until it returns
6466 * Returns: the next parameter type of the method signature @sig,
6467 * #NULL when finished.
6470 mono_signature_get_params (MonoMethodSignature *sig, gpointer *iter)
6476 /* start from the first */
6477 if (sig->param_count) {
6478 *iter = &sig->params [0];
6479 return sig->params [0];
6487 if (type < &sig->params [sig->param_count]) {
6495 * mono_signature_get_param_count:
6496 * @sig: the method signature inspected
6498 * Returns: the number of parameters in the method signature @sig.
6501 mono_signature_get_param_count (MonoMethodSignature *sig)
6503 return sig->param_count;
6507 * mono_signature_get_call_conv:
6508 * @sig: the method signature inspected
6510 * Returns: the call convention of the method signature @sig.
6513 mono_signature_get_call_conv (MonoMethodSignature *sig)
6515 return sig->call_convention;
6519 * mono_signature_vararg_start:
6520 * @sig: the method signature inspected
6522 * Returns: the number of the first vararg parameter in the
6523 * method signature @sig. -1 if this is not a vararg signature.
6526 mono_signature_vararg_start (MonoMethodSignature *sig)
6528 return sig->sentinelpos;
6532 * mono_signature_is_instance:
6533 * @sig: the method signature inspected
6535 * Returns: #TRUE if this the method signature @sig has an implicit
6536 * first instance argument. #FALSE otherwise.
6539 mono_signature_is_instance (MonoMethodSignature *sig)
6541 return sig->hasthis;
6545 * mono_signature_param_is_out
6546 * @sig: the method signature inspected
6547 * @param_num: the 0-based index of the inspected parameter
6549 * Returns: #TRUE if the parameter is an out parameter, #FALSE
6553 mono_signature_param_is_out (MonoMethodSignature *sig, int param_num)
6555 g_assert (param_num >= 0 && param_num < sig->param_count);
6556 return (sig->params [param_num]->attrs & PARAM_ATTRIBUTE_OUT) != 0;
6560 * mono_signature_explicit_this:
6561 * @sig: the method signature inspected
6563 * Returns: #TRUE if this the method signature @sig has an explicit
6564 * instance argument. #FALSE otherwise.
6567 mono_signature_explicit_this (MonoMethodSignature *sig)
6569 return sig->explicit_this;
6572 /* for use with allocated memory blocks (assumes alignment is to 8 bytes) */
6574 mono_aligned_addr_hash (gconstpointer ptr)
6576 return GPOINTER_TO_UINT (ptr) >> 3;
6580 * If @field belongs to an inflated generic class, return the corresponding field of the
6581 * generic type definition class.
6584 mono_metadata_get_corresponding_field_from_generic_type_definition (MonoClassField *field)
6589 if (!field->parent->generic_class)
6592 gtd = field->parent->generic_class->container_class;
6593 offset = field - field->parent->fields;
6594 return gtd->fields + offset;
6598 * If @event belongs to an inflated generic class, return the corresponding event of the
6599 * generic type definition class.
6602 mono_metadata_get_corresponding_event_from_generic_type_definition (MonoEvent *event)
6607 if (!event->parent->generic_class)
6610 gtd = event->parent->generic_class->container_class;
6611 offset = event - event->parent->ext->events;
6612 return gtd->ext->events + offset;
6616 * If @property belongs to an inflated generic class, return the corresponding property of the
6617 * generic type definition class.
6620 mono_metadata_get_corresponding_property_from_generic_type_definition (MonoProperty *property)
6625 if (!property->parent->generic_class)
6628 gtd = property->parent->generic_class->container_class;
6629 offset = property - property->parent->ext->properties;
6630 return gtd->ext->properties + offset;
6634 mono_method_get_wrapper_cache (MonoMethod *method)
6636 if (method->is_inflated) {
6637 MonoMethodInflated *imethod = (MonoMethodInflated *)method;
6638 return &imethod->owner->wrapper_caches;
6640 return &method->klass->image->wrapper_caches;
6644 // This is support for the mempool reference tracking feature in checked-build, but lives in metadata.c due to use of static variables of this file.
6647 * mono_find_image_set_owner:
6649 * Find the imageset, if any, which a given pointer is located in the memory of.
6652 mono_find_image_set_owner (void *ptr)
6654 MonoImageSet *owner = NULL;
6661 for (i = 0; !owner && i < image_sets->len; ++i) {
6662 MonoImageSet *set = g_ptr_array_index (image_sets, i);
6663 if (mono_mempool_contains_addr (set->mempool, ptr))
6668 image_sets_unlock ();