2 // decl.cs: Declaration base class for structs, classes, enums and interfaces.
4 // Author: Miguel de Icaza (miguel@gnu.org)
5 // Marek Safar (marek.safar@seznam.cz)
7 // Licensed under the terms of the GNU GPL
9 // (C) 2001 Ximian, Inc (http://www.ximian.com)
11 // TODO: Move the method verification stuff from the class.cs and interface.cs here
15 using System
.Collections
;
16 using System
.Globalization
;
17 using System
.Reflection
.Emit
;
18 using System
.Reflection
;
20 namespace Mono
.CSharp
{
22 public class MemberName
{
24 public readonly MemberName Left
;
26 public static readonly MemberName Null
= new MemberName ("");
28 public MemberName (string name
)
33 public MemberName (MemberName left
, string name
)
39 public MemberName (MemberName left
, MemberName right
)
40 : this (left
, right
.Name
)
44 public string GetName ()
46 return GetName (false);
49 public string GetName (bool is_generic
)
51 string name
= is_generic
? Basename
: Name
;
53 return Left
.GetName (is_generic
) + "." + name
;
59 /// This returns exclusively the name as seen on the source code
60 /// it is not the fully qualifed type after resolution
62 public string GetPartialName ()
65 return Left
.GetPartialName () + "." + Name
;
70 public string GetTypeName ()
73 return Left
.GetTypeName () + "." + Name
;
78 public Expression
GetTypeExpression (Location loc
)
81 Expression lexpr
= Left
.GetTypeExpression (loc
);
83 return new MemberAccess (lexpr
, Name
, loc
);
85 return new SimpleName (Name
, loc
);
89 public MemberName
Clone ()
92 return new MemberName (Left
.Clone (), Name
);
94 return new MemberName (Name
);
97 public string Basename
{
103 public override string ToString ()
105 throw new Exception ("This exception is thrown because someone is miss-using\n" +
106 "MemberName.ToString in the compiler. Please report this bug");
112 /// Base representation for members. This is used to keep track
113 /// of Name, Location and Modifier flags, and handling Attributes.
115 public abstract class MemberCore
: Attributable
{
121 // !(this is GenericMethod) && !(this is Method)
122 return MemberName
.GetName (false);
126 public readonly MemberName MemberName
;
129 /// Modifier flags that the user specified in the source code
133 public readonly TypeContainer Parent
;
136 /// Location where this declaration happens
138 public readonly Location Location
;
142 Obsolete_Undetected
= 1, // Obsolete attribute has not been detected yet
143 Obsolete
= 1 << 1, // Type has obsolete attribute
144 ClsCompliance_Undetected
= 1 << 2, // CLS Compliance has not been detected yet
145 ClsCompliant
= 1 << 3, // Type is CLS Compliant
146 CloseTypeCreated
= 1 << 4, // Tracks whether we have Closed the type
147 HasCompliantAttribute_Undetected
= 1 << 5, // Presence of CLSCompliantAttribute has not been detected
148 HasClsCompliantAttribute
= 1 << 6, // Type has CLSCompliantAttribute
149 ClsCompliantAttributeTrue
= 1 << 7, // Type has CLSCompliant (true)
150 Excluded_Undetected
= 1 << 8, // Conditional attribute has not been detected yet
151 Excluded
= 1 << 9, // Method is conditional
152 TestMethodDuplication
= 1 << 10 // Test for duplication must be performed
156 /// MemberCore flags at first detected then cached
158 internal Flags caching_flags
;
160 public MemberCore (TypeContainer parent
, MemberName name
, Attributes attrs
,
167 caching_flags
= Flags
.Obsolete_Undetected
| Flags
.ClsCompliance_Undetected
| Flags
.HasCompliantAttribute_Undetected
| Flags
.Excluded_Undetected
;
171 /// Tests presence of ObsoleteAttribute and report proper error
173 protected void CheckUsageOfObsoleteAttribute (Type type
)
178 ObsoleteAttribute obsolete_attr
= AttributeTester
.GetObsoleteAttribute (type
);
179 if (obsolete_attr
== null)
182 AttributeTester
.Report_ObsoleteMessage (obsolete_attr
, type
.FullName
, Location
);
185 public abstract bool Define ();
188 // Returns full member name for error message
190 public virtual string GetSignatureForError ()
196 /// Use this method when MethodBuilder is null
198 public virtual string GetSignatureForError (TypeContainer tc
)
204 /// Base Emit method. This is also entry point for CLS-Compliant verification.
206 public virtual void Emit ()
208 // Hack with Parent == null is for EnumMember
209 if (Parent
== null || (GetObsoleteAttribute (Parent
) == null && Parent
.GetObsoleteAttribute (Parent
) == null))
210 VerifyObsoleteAttribute ();
212 if (!RootContext
.VerifyClsCompliance
)
215 VerifyClsCompliance (Parent
);
218 public bool InUnsafe
{
220 return ((ModFlags
& Modifiers
.UNSAFE
) != 0) || Parent
.UnsafeContext
;
225 // Whehter is it ok to use an unsafe pointer in this type container
227 public bool UnsafeOK (DeclSpace parent
)
230 // First check if this MemberCore modifier flags has unsafe set
232 if ((ModFlags
& Modifiers
.UNSAFE
) != 0)
235 if (parent
.UnsafeContext
)
238 Expression
.UnsafeError (Location
);
243 /// Returns instance of ObsoleteAttribute for this MemberCore
245 public ObsoleteAttribute
GetObsoleteAttribute (DeclSpace ds
)
247 // ((flags & (Flags.Obsolete_Undetected | Flags.Obsolete)) == 0) is slower, but why ?
248 if ((caching_flags
& Flags
.Obsolete_Undetected
) == 0 && (caching_flags
& Flags
.Obsolete
) == 0) {
252 caching_flags
&= ~Flags
.Obsolete_Undetected
;
254 if (OptAttributes
== null)
257 // TODO: remove this allocation
258 EmitContext ec
= new EmitContext (ds
.Parent
, ds
, ds
.Location
,
259 null, null, ds
.ModFlags
, false);
261 Attribute obsolete_attr
= OptAttributes
.Search (TypeManager
.obsolete_attribute_type
, ec
);
262 if (obsolete_attr
== null)
265 ObsoleteAttribute obsolete
= obsolete_attr
.GetObsoleteAttribute (ds
);
266 if (obsolete
== null)
269 caching_flags
|= Flags
.Obsolete
;
274 /// Analyze whether CLS-Compliant verification must be execute for this MemberCore.
276 public override bool IsClsCompliaceRequired (DeclSpace container
)
278 if ((caching_flags
& Flags
.ClsCompliance_Undetected
) == 0)
279 return (caching_flags
& Flags
.ClsCompliant
) != 0;
281 if (GetClsCompliantAttributeValue (container
) && IsExposedFromAssembly (container
)) {
282 caching_flags
&= ~Flags
.ClsCompliance_Undetected
;
283 caching_flags
|= Flags
.ClsCompliant
;
287 caching_flags
&= ~Flags
.ClsCompliance_Undetected
;
292 /// Returns true when MemberCore is exposed from assembly.
294 protected bool IsExposedFromAssembly (DeclSpace ds
)
296 if ((ModFlags
& (Modifiers
.PUBLIC
| Modifiers
.PROTECTED
)) == 0)
299 DeclSpace parentContainer
= ds
;
300 while (parentContainer
!= null && parentContainer
.ModFlags
!= 0) {
301 if ((parentContainer
.ModFlags
& (Modifiers
.PUBLIC
| Modifiers
.PROTECTED
)) == 0)
303 parentContainer
= parentContainer
.Parent
;
309 /// Resolve CLSCompliantAttribute value or gets cached value.
311 bool GetClsCompliantAttributeValue (DeclSpace ds
)
313 if (OptAttributes
!= null) {
314 EmitContext ec
= new EmitContext (ds
.Parent
, ds
, ds
.Location
,
315 null, null, ds
.ModFlags
, false);
316 Attribute cls_attribute
= OptAttributes
.GetClsCompliantAttribute (ec
);
317 if (cls_attribute
!= null) {
318 caching_flags
|= Flags
.HasClsCompliantAttribute
;
319 return cls_attribute
.GetClsCompliantAttributeValue (ds
);
322 return ds
.GetClsCompliantAttributeValue ();
326 /// Returns true if MemberCore is explicitly marked with CLSCompliantAttribute
328 protected bool HasClsCompliantAttribute
{
330 return (caching_flags
& Flags
.HasClsCompliantAttribute
) != 0;
336 /// The main virtual method for CLS-Compliant verifications.
337 /// The method returns true if member is CLS-Compliant and false if member is not
338 /// CLS-Compliant which means that CLS-Compliant tests are not necessary. A descendants override it
339 /// and add their extra verifications.
341 protected virtual bool VerifyClsCompliance (DeclSpace ds
)
343 if (!IsClsCompliaceRequired (ds
)) {
344 if ((RootContext
.WarningLevel
>= 2) && HasClsCompliantAttribute
&& !IsExposedFromAssembly (ds
)) {
345 Report
.Warning (3019, Location
, "CLS compliance checking will not be performed on '{0}' because it is private or internal", GetSignatureForError ());
350 if (!CodeGen
.Assembly
.IsClsCompliant
) {
351 if (HasClsCompliantAttribute
) {
352 Report
.Error (3014, Location
, "'{0}' cannot be marked as CLS-compliant because the assembly does not have a CLSCompliant attribute", GetSignatureForError ());
357 int index
= Name
.LastIndexOf ('.');
358 if (Name
[index
> 0 ? index
+ 1 : 0] == '_') {
359 Report
.Error (3008, Location
, "Identifier '{0}' is not CLS-compliant", GetSignatureForError () );
364 protected abstract void VerifyObsoleteAttribute ();
369 /// Base class for structs, classes, enumerations and interfaces.
372 /// They all create new declaration spaces. This
373 /// provides the common foundation for managing those name
376 public abstract class DeclSpace
: MemberCore
{
378 /// this points to the actual definition that is being
379 /// created with System.Reflection.Emit
381 public TypeBuilder TypeBuilder
;
384 // This is the namespace in which this typecontainer
385 // was declared. We use this to resolve names.
387 public NamespaceEntry NamespaceEntry
;
389 public Hashtable Cache
= new Hashtable ();
391 public string Basename
;
393 protected Hashtable defined_names
;
395 static string[] attribute_targets
= new string [] { "type" }
;
397 public DeclSpace (NamespaceEntry ns
, TypeContainer parent
, MemberName name
,
398 Attributes attrs
, Location l
)
399 : base (parent
, name
, attrs
, l
)
402 Basename
= name
.Name
;
403 defined_names
= new Hashtable ();
407 /// Adds the member to defined_names table. It tests for duplications and enclosing name conflicts
409 protected bool AddToContainer (MemberCore symbol
, bool is_method
, string fullname
, string basename
)
411 if (basename
== Basename
&& !(this is Interface
)) {
412 Report
.SymbolRelatedToPreviousError (this);
413 Report
.Error (542, "'{0}': member names cannot be the same as their enclosing type", symbol
.Location
, symbol
.GetSignatureForError ());
417 MemberCore mc
= (MemberCore
)defined_names
[fullname
];
419 if (is_method
&& (mc
is MethodCore
|| mc
is IMethodData
)) {
420 symbol
.caching_flags
|= Flags
.TestMethodDuplication
;
421 mc
.caching_flags
|= Flags
.TestMethodDuplication
;
426 Report
.SymbolRelatedToPreviousError (mc
);
427 Report
.Error (102, symbol
.Location
, "The type '{0}' already contains a definition for '{1}'", GetSignatureForError (), basename
);
431 defined_names
.Add (fullname
, symbol
);
435 public void RecordDecl ()
437 if ((NamespaceEntry
!= null) && (Parent
== RootContext
.Tree
.Types
))
438 NamespaceEntry
.DefineName (MemberName
.Basename
, this);
442 /// Returns the MemberCore associated with a given name in the declaration
443 /// space. It doesn't return method based symbols !!
446 public MemberCore
GetDefinition (string name
)
448 return (MemberCore
)defined_names
[name
];
451 bool in_transit
= false;
454 /// This function is used to catch recursive definitions
457 public bool InTransit
{
468 /// Looks up the alias for the name
470 public string LookupAlias (string name
)
472 if (NamespaceEntry
!= null)
473 return NamespaceEntry
.LookupAlias (name
);
479 // root_types contains all the types. All TopLevel types
480 // hence have a parent that points to `root_types', that is
481 // why there is a non-obvious test down here.
483 public bool IsTopLevel
{
486 if (Parent
.Parent
== null)
493 public virtual void CloseType ()
495 if ((caching_flags
& Flags
.CloseTypeCreated
) == 0){
497 TypeBuilder
.CreateType ();
500 // The try/catch is needed because
501 // nested enumerations fail to load when they
504 // Even if this is the right order (enumerations
505 // declared after types).
507 // Note that this still creates the type and
508 // it is possible to save it
510 caching_flags
|= Flags
.CloseTypeCreated
;
515 /// Should be overriten by the appropriate declaration space
517 public abstract TypeBuilder
DefineType ();
520 /// Define all members, but don't apply any attributes or do anything which may
521 /// access not-yet-defined classes. This method also creates the MemberCache.
523 public abstract bool DefineMembers (TypeContainer parent
);
526 // Whether this is an `unsafe context'
528 public bool UnsafeContext
{
530 if ((ModFlags
& Modifiers
.UNSAFE
) != 0)
533 return Parent
.UnsafeContext
;
538 public static string MakeFQN (string nsn
, string name
)
542 return String
.Concat (nsn
, ".", name
);
545 EmitContext type_resolve_ec
;
546 EmitContext
GetTypeResolveEmitContext (TypeContainer parent
, Location loc
)
548 type_resolve_ec
= new EmitContext (parent
, this, loc
, null, null, ModFlags
, false);
549 type_resolve_ec
.ResolvingTypeTree
= true;
551 return type_resolve_ec
;
555 // Looks up the type, as parsed into the expression `e'.
557 //[Obsolete ("This method is going away soon")]
558 public Type
ResolveType (Expression e
, bool silent
, Location loc
)
560 TypeExpr d
= ResolveTypeExpr (e
, silent
, loc
);
561 return d
== null ? null : d
.Type
;
565 // Resolves the expression `e' for a type, and will recursively define
566 // types. This should only be used for resolving base types.
568 public TypeExpr
ResolveTypeExpr (Expression e
, bool silent
, Location loc
)
570 if (type_resolve_ec
== null)
571 type_resolve_ec
= GetTypeResolveEmitContext (Parent
, loc
);
572 type_resolve_ec
.loc
= loc
;
573 type_resolve_ec
.ContainerType
= TypeBuilder
;
575 return e
.ResolveAsTypeTerminal (type_resolve_ec
, silent
);
578 public bool CheckAccessLevel (Type check_type
)
580 if (check_type
== TypeBuilder
)
583 TypeAttributes check_attr
= check_type
.Attributes
& TypeAttributes
.VisibilityMask
;
586 // Broken Microsoft runtime, return public for arrays, no matter what
587 // the accessibility is for their underlying class, and they return
588 // NonPublic visibility for pointers
590 if (check_type
.IsArray
|| check_type
.IsPointer
)
591 return CheckAccessLevel (TypeManager
.GetElementType (check_type
));
593 if (TypeBuilder
== null)
594 // FIXME: TypeBuilder will be null when invoked by Class.GetNormalBases().
595 // However, this is invoked again later -- so safe to return true.
596 // May also be null when resolving top-level attributes.
600 case TypeAttributes
.Public
:
603 case TypeAttributes
.NotPublic
:
605 // This test should probably use the declaringtype.
607 return check_type
.Assembly
== TypeBuilder
.Assembly
;
609 case TypeAttributes
.NestedPublic
:
612 case TypeAttributes
.NestedPrivate
:
613 return NestedAccessible (check_type
);
615 case TypeAttributes
.NestedFamily
:
616 return FamilyAccessible (check_type
);
618 case TypeAttributes
.NestedFamANDAssem
:
619 return (check_type
.Assembly
== TypeBuilder
.Assembly
) &&
620 FamilyAccessible (check_type
);
622 case TypeAttributes
.NestedFamORAssem
:
623 return (check_type
.Assembly
== TypeBuilder
.Assembly
) ||
624 FamilyAccessible (check_type
);
626 case TypeAttributes
.NestedAssembly
:
627 return check_type
.Assembly
== TypeBuilder
.Assembly
;
630 Console
.WriteLine ("HERE: " + check_attr
);
635 protected bool NestedAccessible (Type check_type
)
637 string check_type_name
= check_type
.FullName
;
639 // At this point, we already know check_type is a nested class.
640 int cio
= check_type_name
.LastIndexOf ('+');
642 // Ensure that the string 'container' has a '+' in it to avoid false matches
643 string container
= check_type_name
.Substring (0, cio
+ 1);
645 // Ensure that type_name ends with a '+' so that it can match 'container', if necessary
646 string type_name
= TypeBuilder
.FullName
+ "+";
648 // If the current class is nested inside the container of check_type,
649 // we can access check_type even if it is private or protected.
650 return type_name
.StartsWith (container
);
653 protected bool FamilyAccessible (Type check_type
)
655 Type declaring
= check_type
.DeclaringType
;
656 if (TypeBuilder
== declaring
||
657 TypeBuilder
.IsSubclassOf (declaring
))
660 return NestedAccessible (check_type
);
663 // Access level of a type.
665 enum AccessLevel
{ // Each column represents `is this scope larger or equal to Blah scope'
666 // Public Assembly Protected
667 Protected
= (0 << 0) | (0 << 1) | (X
<< 2),
668 Public
= (X
<< 0) | (X
<< 1) | (X
<< 2),
669 Private
= (0 << 0) | (0 << 1) | (0 << 2),
670 Internal
= (0 << 0) | (X
<< 1) | (0 << 2),
671 ProtectedOrInternal
= (0 << 0) | (X
<< 1) | (X
<< 2),
674 static AccessLevel
GetAccessLevelFromModifiers (int flags
)
676 if ((flags
& Modifiers
.INTERNAL
) != 0) {
678 if ((flags
& Modifiers
.PROTECTED
) != 0)
679 return AccessLevel
.ProtectedOrInternal
;
681 return AccessLevel
.Internal
;
683 } else if ((flags
& Modifiers
.PROTECTED
) != 0)
684 return AccessLevel
.Protected
;
686 else if ((flags
& Modifiers
.PRIVATE
) != 0)
687 return AccessLevel
.Private
;
690 return AccessLevel
.Public
;
693 // What is the effective access level of this?
695 AccessLevel EffectiveAccessLevel
{
697 AccessLevel myAccess
= GetAccessLevelFromModifiers (ModFlags
);
698 if (!IsTopLevel
&& (Parent
!= null))
699 return myAccess
& Parent
.EffectiveAccessLevel
;
705 // Return the access level for type `t'
706 static AccessLevel
TypeEffectiveAccessLevel (Type t
)
709 return AccessLevel
.Public
;
710 if (t
.IsNestedPrivate
)
711 return AccessLevel
.Private
;
713 return AccessLevel
.Internal
;
715 // By now, it must be nested
716 AccessLevel parentLevel
= TypeEffectiveAccessLevel (t
.DeclaringType
);
718 if (t
.IsNestedPublic
)
720 if (t
.IsNestedAssembly
)
721 return parentLevel
& AccessLevel
.Internal
;
722 if (t
.IsNestedFamily
)
723 return parentLevel
& AccessLevel
.Protected
;
724 if (t
.IsNestedFamORAssem
)
725 return parentLevel
& AccessLevel
.ProtectedOrInternal
;
726 if (t
.IsNestedFamANDAssem
)
727 throw new NotImplementedException ("NestedFamANDAssem not implemented, cant make this kind of type from c# anyways");
729 // nested private is taken care of
731 throw new Exception ("I give up, what are you?");
735 // This answers `is the type P, as accessible as a member M which has the
736 // accessability @flags which is declared as a nested member of the type T, this declspace'
738 public bool AsAccessible (Type p
, int flags
)
741 // 1) if M is private, its accessability is the same as this declspace.
742 // we already know that P is accessible to T before this method, so we
746 if ((flags
& Modifiers
.PRIVATE
) != 0)
749 while (p
.IsArray
|| p
.IsPointer
|| p
.IsByRef
)
750 p
= TypeManager
.GetElementType (p
);
752 AccessLevel pAccess
= TypeEffectiveAccessLevel (p
);
753 AccessLevel mAccess
= this.EffectiveAccessLevel
&
754 GetAccessLevelFromModifiers (flags
);
756 // for every place from which we can access M, we must
757 // be able to access P as well. So, we want
758 // For every bit in M and P, M_i -> P_1 == true
759 // or, ~ (M -> P) == 0 <-> ~ ( ~M | P) == 0
761 return ~
(~ mAccess
| pAccess
) == 0;
764 static DoubleHash dh
= new DoubleHash (1000);
766 Type
DefineTypeAndParents (DeclSpace tc
)
768 DeclSpace container
= tc
.Parent
;
770 if (container
.TypeBuilder
== null && container
.Name
!= "")
771 DefineTypeAndParents (container
);
773 return tc
.DefineType ();
776 Type
LookupInterfaceOrClass (string ns
, string name
, out bool error
)
783 int p
= name
.LastIndexOf ('.');
785 if (dh
.Lookup (ns
, name
, out r
))
789 // If the type is not a nested type, we do not need `LookupType's processing.
790 // If the @name does not have a `.' in it, this cant be a nested type.
793 if (Namespace
.IsNamespace (ns
)) {
795 t
= TypeManager
.LookupType (ns
+ "." + name
);
797 t
= TypeManager
.LookupTypeDirect (ns
+ "." + name
);
801 t
= TypeManager
.LookupType (name
);
803 t
= TypeManager
.LookupTypeDirect (name
);
807 dh
.Insert (ns
, name
, t
);
812 // In case we are fed a composite name, normalize it.
816 ns
= MakeFQN (ns
, name
.Substring (0, p
));
817 name
= name
.Substring (p
+1);
820 parent
= RootContext
.Tree
.LookupByNamespace (ns
, name
);
821 if (parent
== null) {
822 dh
.Insert (ns
, name
, null);
826 t
= DefineTypeAndParents (parent
);
832 dh
.Insert (ns
, name
, t
);
836 public static void Error_AmbiguousTypeReference (Location loc
, string name
, Type t1
, Type t2
)
838 Report
.Error (104, loc
,
839 String
.Format ("`{0}' is an ambiguous reference ({1} or {2}) ", name
,
840 t1
.FullName
, t2
.FullName
));
844 /// GetType is used to resolve type names at the DeclSpace level.
845 /// Use this to lookup class/struct bases, interface bases or
846 /// delegate type references
850 /// Contrast this to LookupType which is used inside method bodies to
851 /// lookup types that have already been defined. GetType is used
852 /// during the tree resolution process and potentially define
853 /// recursively the type
855 public Type
FindType (Location loc
, string name
)
861 // For the case the type we are looking for is nested within this one
862 // or is in any base class
864 DeclSpace containing_ds
= this;
866 while (containing_ds
!= null){
867 Type container_type
= containing_ds
.TypeBuilder
;
868 Type current_type
= container_type
;
870 while (current_type
!= null && current_type
!= TypeManager
.object_type
) {
871 string pre
= current_type
.FullName
;
873 t
= LookupInterfaceOrClass (pre
, name
, out error
);
877 if ((t
!= null) && containing_ds
.CheckAccessLevel (t
))
880 current_type
= current_type
.BaseType
;
882 containing_ds
= containing_ds
.Parent
;
886 // Attempt to lookup the class on our namespace and all it's implicit parents
888 for (NamespaceEntry ns
= NamespaceEntry
; ns
!= null; ns
= ns
.ImplicitParent
) {
889 t
= LookupInterfaceOrClass (ns
.FullName
, name
, out error
);
898 // Attempt to do a direct unqualified lookup
900 t
= LookupInterfaceOrClass ("", name
, out error
);
908 // Attempt to lookup the class on any of the `using'
912 for (NamespaceEntry ns
= NamespaceEntry
; ns
!= null; ns
= ns
.Parent
){
914 t
= LookupInterfaceOrClass (ns
.FullName
, name
, out error
);
921 if (name
.IndexOf ('.') > 0)
924 string alias_value
= ns
.LookupAlias (name
);
925 if (alias_value
!= null) {
926 t
= LookupInterfaceOrClass ("", alias_value
, out error
);
935 // Now check the using clause list
938 foreach (Namespace using_ns
in ns
.GetUsingTable ()) {
939 match
= LookupInterfaceOrClass (using_ns
.Name
, name
, out error
);
945 if (CheckAccessLevel (match
)) {
946 Error_AmbiguousTypeReference (loc
, name
, t
, match
);
959 //Report.Error (246, Location, "Can not find type `"+name+"'");
964 /// This function is broken and not what you're looking for. It should only
965 /// be used while the type is still being created since it doesn't use the cache
966 /// and relies on the filter doing the member name check.
968 public abstract MemberList
FindMembers (MemberTypes mt
, BindingFlags bf
,
969 MemberFilter filter
, object criteria
);
972 /// If we have a MemberCache, return it. This property may return null if the
973 /// class doesn't have a member cache or while it's still being created.
975 public abstract MemberCache MemberCache
{
979 public override void ApplyAttributeBuilder (Attribute a
, CustomAttributeBuilder cb
)
982 TypeBuilder
.SetCustomAttribute (cb
);
983 } catch (System
.ArgumentException e
) {
984 Report
.Warning (-21, a
.Location
,
985 "The CharSet named property on StructLayout\n"+
986 "\tdoes not work correctly on Microsoft.NET\n"+
987 "\tYou might want to remove the CharSet declaration\n"+
988 "\tor compile using the Mono runtime instead of the\n"+
989 "\tMicrosoft .NET runtime\n"+
990 "\tThe runtime gave the error: " + e
);
995 /// Goes through class hierarchy and get value of first CLSCompliantAttribute that found.
996 /// If no is attribute exists then return assembly CLSCompliantAttribute.
998 public bool GetClsCompliantAttributeValue ()
1000 if ((caching_flags
& Flags
.HasCompliantAttribute_Undetected
) == 0)
1001 return (caching_flags
& Flags
.ClsCompliantAttributeTrue
) != 0;
1003 caching_flags
&= ~Flags
.HasCompliantAttribute_Undetected
;
1005 if (OptAttributes
!= null) {
1006 EmitContext ec
= new EmitContext (Parent
, this, Location
,
1007 null, null, ModFlags
, false);
1008 Attribute cls_attribute
= OptAttributes
.GetClsCompliantAttribute (ec
);
1009 if (cls_attribute
!= null) {
1010 caching_flags
|= Flags
.HasClsCompliantAttribute
;
1011 if (cls_attribute
.GetClsCompliantAttributeValue (this)) {
1012 caching_flags
|= Flags
.ClsCompliantAttributeTrue
;
1019 if (Parent
== null) {
1020 if (CodeGen
.Assembly
.IsClsCompliant
) {
1021 caching_flags
|= Flags
.ClsCompliantAttributeTrue
;
1027 if (Parent
.GetClsCompliantAttributeValue ()) {
1028 caching_flags
|= Flags
.ClsCompliantAttributeTrue
;
1034 public override string[] ValidAttributeTargets
{
1036 return attribute_targets
;
1042 /// This is a readonly list of MemberInfo's.
1044 public class MemberList
: IList
{
1045 public readonly IList List
;
1049 /// Create a new MemberList from the given IList.
1051 public MemberList (IList list
)
1056 this.List
= new ArrayList ();
1061 /// Concatenate the ILists `first' and `second' to a new MemberList.
1063 public MemberList (IList first
, IList second
)
1065 ArrayList list
= new ArrayList ();
1066 list
.AddRange (first
);
1067 list
.AddRange (second
);
1072 public static readonly MemberList Empty
= new MemberList (new ArrayList ());
1075 /// Cast the MemberList into a MemberInfo[] array.
1078 /// This is an expensive operation, only use it if it's really necessary.
1080 public static explicit operator MemberInfo
[] (MemberList list
)
1082 Timer
.StartTimer (TimerType
.MiscTimer
);
1083 MemberInfo
[] result
= new MemberInfo
[list
.Count
];
1084 list
.CopyTo (result
, 0);
1085 Timer
.StopTimer (TimerType
.MiscTimer
);
1097 public bool IsSynchronized
{
1099 return List
.IsSynchronized
;
1103 public object SyncRoot
{
1105 return List
.SyncRoot
;
1109 public void CopyTo (Array array
, int index
)
1111 List
.CopyTo (array
, index
);
1116 public IEnumerator
GetEnumerator ()
1118 return List
.GetEnumerator ();
1123 public bool IsFixedSize
{
1129 public bool IsReadOnly
{
1135 object IList
.this [int index
] {
1137 return List
[index
];
1141 throw new NotSupportedException ();
1145 // FIXME: try to find out whether we can avoid the cast in this indexer.
1146 public MemberInfo
this [int index
] {
1148 return (MemberInfo
) List
[index
];
1152 public int Add (object value)
1154 throw new NotSupportedException ();
1157 public void Clear ()
1159 throw new NotSupportedException ();
1162 public bool Contains (object value)
1164 return List
.Contains (value);
1167 public int IndexOf (object value)
1169 return List
.IndexOf (value);
1172 public void Insert (int index
, object value)
1174 throw new NotSupportedException ();
1177 public void Remove (object value)
1179 throw new NotSupportedException ();
1182 public void RemoveAt (int index
)
1184 throw new NotSupportedException ();
1189 /// This interface is used to get all members of a class when creating the
1190 /// member cache. It must be implemented by all DeclSpace derivatives which
1191 /// want to support the member cache and by TypeHandle to get caching of
1192 /// non-dynamic types.
1194 public interface IMemberContainer
{
1196 /// The name of the IMemberContainer. This is only used for
1197 /// debugging purposes.
1204 /// The type of this IMemberContainer.
1211 /// Returns the IMemberContainer of the parent class or null if this
1212 /// is an interface or TypeManger.object_type.
1213 /// This is used when creating the member cache for a class to get all
1214 /// members from the parent class.
1216 IMemberContainer ParentContainer
{
1221 /// Whether this is an interface.
1228 /// Returns all members of this class with the corresponding MemberTypes
1229 /// and BindingFlags.
1232 /// When implementing this method, make sure not to return any inherited
1233 /// members and check the MemberTypes and BindingFlags properly.
1234 /// Unfortunately, System.Reflection is lame and doesn't provide a way to
1235 /// get the BindingFlags (static/non-static,public/non-public) in the
1236 /// MemberInfo class, but the cache needs this information. That's why
1237 /// this method is called multiple times with different BindingFlags.
1239 MemberList
GetMembers (MemberTypes mt
, BindingFlags bf
);
1242 /// Return the container's member cache.
1244 MemberCache MemberCache
{
1250 /// The MemberCache is used by dynamic and non-dynamic types to speed up
1251 /// member lookups. It has a member name based hash table; it maps each member
1252 /// name to a list of CacheEntry objects. Each CacheEntry contains a MemberInfo
1253 /// and the BindingFlags that were initially used to get it. The cache contains
1254 /// all members of the current class and all inherited members. If this cache is
1255 /// for an interface types, it also contains all inherited members.
1257 /// There are two ways to get a MemberCache:
1258 /// * if this is a dynamic type, lookup the corresponding DeclSpace and then
1259 /// use the DeclSpace.MemberCache property.
1260 /// * if this not a dynamic type, call TypeHandle.GetTypeHandle() to get a
1261 /// TypeHandle instance for the type and then use TypeHandle.MemberCache.
1263 public class MemberCache
{
1264 public readonly IMemberContainer Container
;
1265 protected Hashtable member_hash
;
1266 protected Hashtable method_hash
;
1269 /// Create a new MemberCache for the given IMemberContainer `container'.
1271 public MemberCache (IMemberContainer container
, bool setup_inherited_interfaces
)
1273 this.Container
= container
;
1275 Timer
.IncrementCounter (CounterType
.MemberCache
);
1276 Timer
.StartTimer (TimerType
.CacheInit
);
1280 // If we have a parent class (we have a parent class unless we're
1281 // TypeManager.object_type), we deep-copy its MemberCache here.
1282 if (Container
.IsInterface
) {
1285 if (Container
.ParentContainer
!= null)
1286 parent
= Container
.ParentContainer
.MemberCache
;
1289 member_hash
= SetupCacheForInterface (parent
, setup_inherited_interfaces
);
1290 } else if (Container
.ParentContainer
!= null)
1291 member_hash
= SetupCache (Container
.ParentContainer
.MemberCache
);
1293 member_hash
= new Hashtable ();
1295 // If this is neither a dynamic type nor an interface, create a special
1296 // method cache with all declared and inherited methods.
1297 Type type
= container
.Type
;
1298 if (!(type
is TypeBuilder
) && !type
.IsInterface
) {
1299 method_hash
= new Hashtable ();
1303 // Add all members from the current class.
1304 AddMembers (Container
);
1306 Timer
.StopTimer (TimerType
.CacheInit
);
1310 /// Bootstrap this member cache by doing a deep-copy of our parent.
1312 Hashtable
SetupCache (MemberCache parent
)
1314 Hashtable hash
= new Hashtable ();
1318 IDictionaryEnumerator it
= parent
.member_hash
.GetEnumerator ();
1319 while (it
.MoveNext ()) {
1320 hash
[it
.Key
] = ((ArrayList
) it
.Value
).Clone ();
1328 /// Add the contents of `new_hash' to `hash'.
1330 void AddHashtable (Hashtable hash
, MemberCache cache
)
1332 Hashtable new_hash
= cache
.member_hash
;
1333 IDictionaryEnumerator it
= new_hash
.GetEnumerator ();
1334 while (it
.MoveNext ()) {
1335 ArrayList list
= (ArrayList
) hash
[it
.Key
];
1337 hash
[it
.Key
] = list
= new ArrayList ();
1339 foreach (CacheEntry entry
in (ArrayList
) it
.Value
) {
1340 if (entry
.Container
!= cache
.Container
)
1348 /// Bootstrap the member cache for an interface type.
1349 /// Type.GetMembers() won't return any inherited members for interface types,
1350 /// so we need to do this manually. Interfaces also inherit from System.Object.
1352 Hashtable
SetupCacheForInterface (MemberCache parent
, bool deep_setup
)
1354 Hashtable hash
= SetupCache (parent
);
1359 TypeExpr
[] ifaces
= TypeManager
.GetInterfaces (Container
.Type
);
1361 foreach (TypeExpr iface
in ifaces
) {
1362 Type itype
= iface
.Type
;
1364 IMemberContainer iface_container
=
1365 TypeManager
.LookupMemberContainer (itype
);
1367 MemberCache iface_cache
= iface_container
.MemberCache
;
1369 AddHashtable (hash
, iface_cache
);
1376 /// Add all members from class `container' to the cache.
1378 void AddMembers (IMemberContainer container
)
1380 // We need to call AddMembers() with a single member type at a time
1381 // to get the member type part of CacheEntry.EntryType right.
1382 if (!container
.IsInterface
) {
1383 AddMembers (MemberTypes
.Constructor
, container
);
1384 AddMembers (MemberTypes
.Field
, container
);
1386 AddMembers (MemberTypes
.Method
, container
);
1387 AddMembers (MemberTypes
.Property
, container
);
1388 AddMembers (MemberTypes
.Event
, container
);
1389 // Nested types are returned by both Static and Instance searches.
1390 AddMembers (MemberTypes
.NestedType
,
1391 BindingFlags
.Static
| BindingFlags
.Public
, container
);
1392 AddMembers (MemberTypes
.NestedType
,
1393 BindingFlags
.Static
| BindingFlags
.NonPublic
, container
);
1396 void AddMembers (MemberTypes mt
, IMemberContainer container
)
1398 AddMembers (mt
, BindingFlags
.Static
| BindingFlags
.Public
, container
);
1399 AddMembers (mt
, BindingFlags
.Static
| BindingFlags
.NonPublic
, container
);
1400 AddMembers (mt
, BindingFlags
.Instance
| BindingFlags
.Public
, container
);
1401 AddMembers (mt
, BindingFlags
.Instance
| BindingFlags
.NonPublic
, container
);
1405 /// Add all members from class `container' with the requested MemberTypes and
1406 /// BindingFlags to the cache. This method is called multiple times with different
1407 /// MemberTypes and BindingFlags.
1409 void AddMembers (MemberTypes mt
, BindingFlags bf
, IMemberContainer container
)
1411 MemberList members
= container
.GetMembers (mt
, bf
);
1413 foreach (MemberInfo member
in members
) {
1414 string name
= member
.Name
;
1416 // We use a name-based hash table of ArrayList's.
1417 ArrayList list
= (ArrayList
) member_hash
[name
];
1419 list
= new ArrayList ();
1420 member_hash
.Add (name
, list
);
1423 // When this method is called for the current class, the list will
1424 // already contain all inherited members from our parent classes.
1425 // We cannot add new members in front of the list since this'd be an
1426 // expensive operation, that's why the list is sorted in reverse order
1427 // (ie. members from the current class are coming last).
1428 list
.Add (new CacheEntry (container
, member
, mt
, bf
));
1433 /// Add all declared and inherited methods from class `type' to the method cache.
1435 void AddMethods (Type type
)
1437 AddMethods (BindingFlags
.Static
| BindingFlags
.Public
|
1438 BindingFlags
.FlattenHierarchy
, type
);
1439 AddMethods (BindingFlags
.Static
| BindingFlags
.NonPublic
|
1440 BindingFlags
.FlattenHierarchy
, type
);
1441 AddMethods (BindingFlags
.Instance
| BindingFlags
.Public
, type
);
1442 AddMethods (BindingFlags
.Instance
| BindingFlags
.NonPublic
, type
);
1445 void AddMethods (BindingFlags bf
, Type type
)
1447 MemberInfo
[] members
= type
.GetMethods (bf
);
1449 Array
.Reverse (members
);
1451 foreach (MethodBase member
in members
) {
1452 string name
= member
.Name
;
1454 // We use a name-based hash table of ArrayList's.
1455 ArrayList list
= (ArrayList
) method_hash
[name
];
1457 list
= new ArrayList ();
1458 method_hash
.Add (name
, list
);
1461 // Unfortunately, the elements returned by Type.GetMethods() aren't
1462 // sorted so we need to do this check for every member.
1463 BindingFlags new_bf
= bf
;
1464 if (member
.DeclaringType
== type
)
1465 new_bf
|= BindingFlags
.DeclaredOnly
;
1467 list
.Add (new CacheEntry (Container
, member
, MemberTypes
.Method
, new_bf
));
1474 /// Compute and return a appropriate `EntryType' magic number for the given
1475 /// MemberTypes and BindingFlags.
1477 protected static EntryType
GetEntryType (MemberTypes mt
, BindingFlags bf
)
1479 EntryType type
= EntryType
.None
;
1481 if ((mt
& MemberTypes
.Constructor
) != 0)
1482 type
|= EntryType
.Constructor
;
1483 if ((mt
& MemberTypes
.Event
) != 0)
1484 type
|= EntryType
.Event
;
1485 if ((mt
& MemberTypes
.Field
) != 0)
1486 type
|= EntryType
.Field
;
1487 if ((mt
& MemberTypes
.Method
) != 0)
1488 type
|= EntryType
.Method
;
1489 if ((mt
& MemberTypes
.Property
) != 0)
1490 type
|= EntryType
.Property
;
1491 // Nested types are returned by static and instance searches.
1492 if ((mt
& MemberTypes
.NestedType
) != 0)
1493 type
|= EntryType
.NestedType
| EntryType
.Static
| EntryType
.Instance
;
1495 if ((bf
& BindingFlags
.Instance
) != 0)
1496 type
|= EntryType
.Instance
;
1497 if ((bf
& BindingFlags
.Static
) != 0)
1498 type
|= EntryType
.Static
;
1499 if ((bf
& BindingFlags
.Public
) != 0)
1500 type
|= EntryType
.Public
;
1501 if ((bf
& BindingFlags
.NonPublic
) != 0)
1502 type
|= EntryType
.NonPublic
;
1503 if ((bf
& BindingFlags
.DeclaredOnly
) != 0)
1504 type
|= EntryType
.Declared
;
1510 /// The `MemberTypes' enumeration type is a [Flags] type which means that it may
1511 /// denote multiple member types. Returns true if the given flags value denotes a
1512 /// single member types.
1514 public static bool IsSingleMemberType (MemberTypes mt
)
1517 case MemberTypes
.Constructor
:
1518 case MemberTypes
.Event
:
1519 case MemberTypes
.Field
:
1520 case MemberTypes
.Method
:
1521 case MemberTypes
.Property
:
1522 case MemberTypes
.NestedType
:
1531 /// We encode the MemberTypes and BindingFlags of each members in a "magic"
1532 /// number to speed up the searching process.
1535 protected internal enum EntryType
{
1540 MaskStatic
= Instance
|Static
,
1544 MaskProtection
= Public
|NonPublic
,
1548 Constructor
= 0x020,
1555 MaskType
= Constructor
|Event
|Field
|Method
|Property
|NestedType
1558 protected internal struct CacheEntry
{
1559 public readonly IMemberContainer Container
;
1560 public readonly EntryType EntryType
;
1561 public readonly MemberInfo Member
;
1563 public CacheEntry (IMemberContainer container
, MemberInfo member
,
1564 MemberTypes mt
, BindingFlags bf
)
1566 this.Container
= container
;
1567 this.Member
= member
;
1568 this.EntryType
= GetEntryType (mt
, bf
);
1573 /// This is called each time we're walking up one level in the class hierarchy
1574 /// and checks whether we can abort the search since we've already found what
1575 /// we were looking for.
1577 protected bool DoneSearching (ArrayList list
)
1580 // We've found exactly one member in the current class and it's not
1581 // a method or constructor.
1583 if (list
.Count
== 1 && !(list
[0] is MethodBase
))
1587 // Multiple properties: we query those just to find out the indexer
1590 if ((list
.Count
> 0) && (list
[0] is PropertyInfo
))
1597 /// Looks up members with name `name'. If you provide an optional
1598 /// filter function, it'll only be called with members matching the
1599 /// requested member name.
1601 /// This method will try to use the cache to do the lookup if possible.
1603 /// Unlike other FindMembers implementations, this method will always
1604 /// check all inherited members - even when called on an interface type.
1606 /// If you know that you're only looking for methods, you should use
1607 /// MemberTypes.Method alone since this speeds up the lookup a bit.
1608 /// When doing a method-only search, it'll try to use a special method
1609 /// cache (unless it's a dynamic type or an interface) and the returned
1610 /// MemberInfo's will have the correct ReflectedType for inherited methods.
1611 /// The lookup process will automatically restart itself in method-only
1612 /// search mode if it discovers that it's about to return methods.
1614 ArrayList
global = new ArrayList ();
1615 bool using_global
= false;
1617 static MemberInfo
[] emptyMemberInfo
= new MemberInfo
[0];
1619 public MemberInfo
[] FindMembers (MemberTypes mt
, BindingFlags bf
, string name
,
1620 MemberFilter filter
, object criteria
)
1623 throw new Exception ();
1625 bool declared_only
= (bf
& BindingFlags
.DeclaredOnly
) != 0;
1626 bool method_search
= mt
== MemberTypes
.Method
;
1627 // If we have a method cache and we aren't already doing a method-only search,
1628 // then we restart a method search if the first match is a method.
1629 bool do_method_search
= !method_search
&& (method_hash
!= null);
1631 ArrayList applicable
;
1633 // If this is a method-only search, we try to use the method cache if
1634 // possible; a lookup in the method cache will return a MemberInfo with
1635 // the correct ReflectedType for inherited methods.
1637 if (method_search
&& (method_hash
!= null))
1638 applicable
= (ArrayList
) method_hash
[name
];
1640 applicable
= (ArrayList
) member_hash
[name
];
1642 if (applicable
== null)
1643 return emptyMemberInfo
;
1646 // 32 slots gives 53 rss/54 size
1647 // 2/4 slots gives 55 rss
1649 // Strange: from 25,000 calls, only 1,800
1650 // are above 2. Why does this impact it?
1653 using_global
= true;
1655 Timer
.StartTimer (TimerType
.CachedLookup
);
1657 EntryType type
= GetEntryType (mt
, bf
);
1659 IMemberContainer current
= Container
;
1662 // `applicable' is a list of all members with the given member name `name'
1663 // in the current class and all its parent classes. The list is sorted in
1664 // reverse order due to the way how the cache is initialy created (to speed
1665 // things up, we're doing a deep-copy of our parent).
1667 for (int i
= applicable
.Count
-1; i
>= 0; i
--) {
1668 CacheEntry entry
= (CacheEntry
) applicable
[i
];
1670 // This happens each time we're walking one level up in the class
1671 // hierarchy. If we're doing a DeclaredOnly search, we must abort
1672 // the first time this happens (this may already happen in the first
1673 // iteration of this loop if there are no members with the name we're
1674 // looking for in the current class).
1675 if (entry
.Container
!= current
) {
1676 if (declared_only
|| DoneSearching (global))
1679 current
= entry
.Container
;
1682 // Is the member of the correct type ?
1683 if ((entry
.EntryType
& type
& EntryType
.MaskType
) == 0)
1686 // Is the member static/non-static ?
1687 if ((entry
.EntryType
& type
& EntryType
.MaskStatic
) == 0)
1690 // Apply the filter to it.
1691 if (filter (entry
.Member
, criteria
)) {
1692 if ((entry
.EntryType
& EntryType
.MaskType
) != EntryType
.Method
)
1693 do_method_search
= false;
1694 global.Add (entry
.Member
);
1698 Timer
.StopTimer (TimerType
.CachedLookup
);
1700 // If we have a method cache and we aren't already doing a method-only
1701 // search, we restart in method-only search mode if the first match is
1702 // a method. This ensures that we return a MemberInfo with the correct
1703 // ReflectedType for inherited methods.
1704 if (do_method_search
&& (global.Count
> 0)){
1705 using_global
= false;
1707 return FindMembers (MemberTypes
.Method
, bf
, name
, filter
, criteria
);
1710 using_global
= false;
1711 MemberInfo
[] copy
= new MemberInfo
[global.Count
];
1712 global.CopyTo (copy
);
1716 // find the nested type @name in @this.
1717 public Type
FindNestedType (string name
)
1719 ArrayList applicable
= (ArrayList
) member_hash
[name
];
1720 if (applicable
== null)
1723 for (int i
= applicable
.Count
-1; i
>= 0; i
--) {
1724 CacheEntry entry
= (CacheEntry
) applicable
[i
];
1725 if ((entry
.EntryType
& EntryType
.NestedType
& EntryType
.MaskType
) != 0)
1726 return (Type
) entry
.Member
;
1733 // This finds the method or property for us to override. invocationType is the type where
1734 // the override is going to be declared, name is the name of the method/property, and
1735 // paramTypes is the parameters, if any to the method or property
1737 // Because the MemberCache holds members from this class and all the base classes,
1738 // we can avoid tons of reflection stuff.
1740 public MemberInfo
FindMemberToOverride (Type invocationType
, string name
, Type
[] paramTypes
, bool is_property
)
1742 ArrayList applicable
;
1743 if (method_hash
!= null && !is_property
)
1744 applicable
= (ArrayList
) method_hash
[name
];
1746 applicable
= (ArrayList
) member_hash
[name
];
1748 if (applicable
== null)
1751 // Walk the chain of methods, starting from the top.
1753 for (int i
= applicable
.Count
- 1; i
>= 0; i
--) {
1754 CacheEntry entry
= (CacheEntry
) applicable
[i
];
1756 if ((entry
.EntryType
& (is_property
? (EntryType
.Property
| EntryType
.Field
) : EntryType
.Method
)) == 0)
1759 PropertyInfo pi
= null;
1760 MethodInfo mi
= null;
1761 FieldInfo fi
= null;
1762 Type
[] cmpAttrs
= null;
1765 if ((entry
.EntryType
& EntryType
.Field
) != 0) {
1766 fi
= (FieldInfo
)entry
.Member
;
1768 // TODO: For this case we ignore member type
1769 //fb = TypeManager.GetField (fi);
1770 //cmpAttrs = new Type[] { fb.MemberType };
1772 pi
= (PropertyInfo
) entry
.Member
;
1773 cmpAttrs
= TypeManager
.GetArgumentTypes (pi
);
1776 mi
= (MethodInfo
) entry
.Member
;
1777 cmpAttrs
= TypeManager
.GetArgumentTypes (mi
);
1781 // TODO: Almost duplicate !
1783 switch (fi
.Attributes
& FieldAttributes
.FieldAccessMask
) {
1784 case FieldAttributes
.Private
:
1786 // A private method is Ok if we are a nested subtype.
1787 // The spec actually is not very clear about this, see bug 52458.
1789 if (invocationType
!= entry
.Container
.Type
&
1790 TypeManager
.IsNestedChildOf (invocationType
, entry
.Container
.Type
))
1794 case FieldAttributes
.FamANDAssem
:
1795 case FieldAttributes
.Assembly
:
1797 // Check for assembly methods
1799 if (mi
.DeclaringType
.Assembly
!= CodeGen
.Assembly
.Builder
)
1803 return entry
.Member
;
1807 // Check the arguments
1809 if (cmpAttrs
.Length
!= paramTypes
.Length
)
1812 for (int j
= cmpAttrs
.Length
- 1; j
>= 0; j
--)
1813 if (paramTypes
[j
] != cmpAttrs
[j
])
1817 // get one of the methods because this has the visibility info.
1820 mi
= pi
.GetGetMethod (true);
1822 mi
= pi
.GetSetMethod (true);
1828 switch (mi
.Attributes
& MethodAttributes
.MemberAccessMask
) {
1829 case MethodAttributes
.Private
:
1831 // A private method is Ok if we are a nested subtype.
1832 // The spec actually is not very clear about this, see bug 52458.
1834 if (invocationType
== entry
.Container
.Type
||
1835 TypeManager
.IsNestedChildOf (invocationType
, entry
.Container
.Type
))
1836 return entry
.Member
;
1839 case MethodAttributes
.FamANDAssem
:
1840 case MethodAttributes
.Assembly
:
1842 // Check for assembly methods
1844 if (mi
.DeclaringType
.Assembly
== CodeGen
.Assembly
.Builder
)
1845 return entry
.Member
;
1850 // A protected method is ok, because we are overriding.
1851 // public is always ok.
1853 return entry
.Member
;
1863 /// The method is looking for conflict with inherited symbols (errors CS0108, CS0109).
1864 /// We handle two cases. The first is for types without parameters (events, field, properties).
1865 /// The second are methods, indexers and this is why ignore_complex_types is here.
1866 /// The latest param is temporary hack. See DoDefineMembers method for more info.
1868 public MemberInfo
FindMemberWithSameName (string name
, bool ignore_complex_types
, MemberInfo ignore_member
)
1870 ArrayList applicable
= null;
1872 if (method_hash
!= null)
1873 applicable
= (ArrayList
) method_hash
[name
];
1875 if (applicable
!= null) {
1876 for (int i
= applicable
.Count
- 1; i
>= 0; i
--) {
1877 CacheEntry entry
= (CacheEntry
) applicable
[i
];
1878 if ((entry
.EntryType
& EntryType
.Public
) != 0)
1879 return entry
.Member
;
1883 if (member_hash
== null)
1885 applicable
= (ArrayList
) member_hash
[name
];
1887 if (applicable
!= null) {
1888 for (int i
= applicable
.Count
- 1; i
>= 0; i
--) {
1889 CacheEntry entry
= (CacheEntry
) applicable
[i
];
1890 if ((entry
.EntryType
& EntryType
.Public
) != 0 & entry
.Member
!= ignore_member
) {
1891 if (ignore_complex_types
) {
1892 if ((entry
.EntryType
& EntryType
.Method
) != 0)
1895 // Does exist easier way how to detect indexer ?
1896 if ((entry
.EntryType
& EntryType
.Property
) != 0) {
1897 Type
[] arg_types
= TypeManager
.GetArgumentTypes ((PropertyInfo
)entry
.Member
);
1898 if (arg_types
.Length
> 0)
1902 return entry
.Member
;
1909 Hashtable locase_table
;
1912 /// Builds low-case table for CLS Compliance test
1914 public Hashtable
GetPublicMembers ()
1916 if (locase_table
!= null)
1917 return locase_table
;
1919 locase_table
= new Hashtable ();
1920 foreach (DictionaryEntry entry
in member_hash
) {
1921 ArrayList members
= (ArrayList
)entry
.Value
;
1922 for (int ii
= 0; ii
< members
.Count
; ++ii
) {
1923 CacheEntry member_entry
= (CacheEntry
) members
[ii
];
1925 if ((member_entry
.EntryType
& EntryType
.Public
) == 0)
1928 // TODO: Does anyone know easier way how to detect that member is internal ?
1929 switch (member_entry
.EntryType
& EntryType
.MaskType
) {
1930 case EntryType
.Constructor
:
1933 case EntryType
.Field
:
1934 if ((((FieldInfo
)member_entry
.Member
).Attributes
& (FieldAttributes
.Assembly
| FieldAttributes
.Public
)) == FieldAttributes
.Assembly
)
1938 case EntryType
.Method
:
1939 if ((((MethodInfo
)member_entry
.Member
).Attributes
& (MethodAttributes
.Assembly
| MethodAttributes
.Public
)) == MethodAttributes
.Assembly
)
1943 case EntryType
.Property
:
1944 PropertyInfo pi
= (PropertyInfo
)member_entry
.Member
;
1945 if (pi
.GetSetMethod () == null && pi
.GetGetMethod () == null)
1949 case EntryType
.Event
:
1950 EventInfo ei
= (EventInfo
)member_entry
.Member
;
1951 MethodInfo mi
= ei
.GetAddMethod ();
1952 if ((mi
.Attributes
& (MethodAttributes
.Assembly
| MethodAttributes
.Public
)) == MethodAttributes
.Assembly
)
1956 string lcase
= ((string)entry
.Key
).ToLower (System
.Globalization
.CultureInfo
.InvariantCulture
);
1957 locase_table
[lcase
] = member_entry
.Member
;
1961 return locase_table
;
1964 public Hashtable Members
{
1971 /// Cls compliance check whether methods or constructors parameters differing only in ref or out, or in array rank
1973 public void VerifyClsParameterConflict (ArrayList al
, MethodCore method
, MemberInfo this_builder
)
1975 EntryType tested_type
= (method
is Constructor
? EntryType
.Constructor
: EntryType
.Method
) | EntryType
.Public
;
1977 for (int i
= 0; i
< al
.Count
; ++i
) {
1978 MemberCache
.CacheEntry entry
= (MemberCache
.CacheEntry
) al
[i
];
1981 if (entry
.Member
== this_builder
)
1984 if ((entry
.EntryType
& tested_type
) != tested_type
)
1987 MethodBase method_to_compare
= (MethodBase
)entry
.Member
;
1988 if (AttributeTester
.AreOverloadedMethodParamsClsCompliant (method
.ParameterTypes
, TypeManager
.GetArgumentTypes (method_to_compare
)))
1991 IMethodData md
= TypeManager
.GetMethod (method_to_compare
);
1993 // TODO: now we are ignoring CLSCompliance(false) on method from other assembly which is buggy.
1994 // However it is exactly what csc does.
1995 if (md
!= null && !md
.IsClsCompliaceRequired (method
.Parent
))
1998 Report
.SymbolRelatedToPreviousError (entry
.Member
);
1999 Report
.Error (3006, method
.Location
, "Overloaded method '{0}' differing only in ref or out, or in array rank, is not CLS-compliant", method
.GetSignatureForError ());