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)
10 // (C) 2004 Novell, Inc
12 // TODO: Move the method verification stuff from the class.cs and interface.cs here
16 using System.Collections;
17 using System.Globalization;
18 using System.Reflection.Emit;
19 using System.Reflection;
21 #if BOOTSTRAP_WITH_OLDLIB
22 using XmlElement = System.Object;
27 namespace Mono.CSharp {
29 public class MemberName {
30 public readonly string Name;
31 public readonly MemberName Left;
33 public static readonly MemberName Null = new MemberName ("");
35 public MemberName (string name)
40 public MemberName (MemberName left, string name)
46 public MemberName (MemberName left, MemberName right)
49 Left = (right.Left == null) ? left : new MemberName (left, right.Left);
52 static readonly char [] dot_array = { '.' };
54 public static MemberName FromDotted (string name)
56 string [] elements = name.Split (dot_array);
57 int count = elements.Length;
59 MemberName n = new MemberName (elements [i++]);
61 n = new MemberName (n, elements [i++]);
65 public string GetName ()
67 return GetName (false);
70 public string GetName (bool is_generic)
72 string name = is_generic ? Basename : Name;
74 return Left.GetName (is_generic) + "." + name;
80 /// This returns exclusively the name as seen on the source code
81 /// it is not the fully qualifed type after resolution
83 public string GetPartialName ()
86 return Left.GetPartialName () + "." + Name;
91 public string GetTypeName ()
94 return Left.GetTypeName () + "." + Name;
99 public Expression GetTypeExpression (Location loc)
102 Expression lexpr = Left.GetTypeExpression (loc);
104 return new MemberAccess (lexpr, Name, loc);
106 return new SimpleName (Name, loc);
110 public MemberName Clone ()
113 return new MemberName (Left.Clone (), Name);
115 return new MemberName (Name);
118 public string Basename {
124 public override string ToString ()
127 return Left + "." + Name;
132 public override bool Equals (object other)
134 return Equals (other as MemberName);
137 public bool Equals (MemberName other)
141 if (other == null || Name != other.Name)
144 if (TypeArguments == null)
145 return other.TypeArguments == null;
147 if (other.TypeArguments == null || TypeArguments.Count != other.TypeArguments.Count)
151 return other.Left == null;
153 return Left.Equals (other.Left);
156 public override int GetHashCode ()
158 int hash = Name.GetHashCode ();
159 for (MemberName n = Left; n != null; n = n.Left)
160 hash ^= n.Name.GetHashCode ();
163 if (TypeArguments != null)
164 hash ^= TypeArguments.Count << 5;
167 return hash & 0x7FFFFFFF;
172 /// Base representation for members. This is used to keep track
173 /// of Name, Location and Modifier flags, and handling Attributes.
175 public abstract class MemberCore : Attributable {
180 protected string cached_name;
183 if (cached_name == null)
184 cached_name = MemberName.GetName (false);
189 // Is not readonly because of IndexerName attribute
190 private MemberName member_name;
191 public MemberName MemberName {
192 get { return member_name; }
196 /// Modifier flags that the user specified in the source code
200 public /*readonly*/ TypeContainer Parent;
203 /// Location where this declaration happens
205 public readonly Location Location;
208 /// XML documentation comment
210 public string DocComment;
213 /// Represents header string for documentation comment
214 /// for each member types.
216 public abstract string DocCommentHeader { get; }
220 Obsolete_Undetected = 1, // Obsolete attribute has not been detected yet
221 Obsolete = 1 << 1, // Type has obsolete attribute
222 ClsCompliance_Undetected = 1 << 2, // CLS Compliance has not been detected yet
223 ClsCompliant = 1 << 3, // Type is CLS Compliant
224 CloseTypeCreated = 1 << 4, // Tracks whether we have Closed the type
225 HasCompliantAttribute_Undetected = 1 << 5, // Presence of CLSCompliantAttribute has not been detected
226 HasClsCompliantAttribute = 1 << 6, // Type has CLSCompliantAttribute
227 ClsCompliantAttributeTrue = 1 << 7, // Type has CLSCompliant (true)
228 Excluded_Undetected = 1 << 8, // Conditional attribute has not been detected yet
229 Excluded = 1 << 9, // Method is conditional
230 TestMethodDuplication = 1 << 10, // Test for duplication must be performed
235 /// MemberCore flags at first detected then cached
237 internal Flags caching_flags;
239 public MemberCore (TypeContainer parent, MemberName name, Attributes attrs,
243 if (parent is PartialContainer && !(this is PartialContainer))
244 throw new InternalErrorException ("A PartialContainer cannot be the direct parent of a member");
249 caching_flags = Flags.Obsolete_Undetected | Flags.ClsCompliance_Undetected | Flags.HasCompliantAttribute_Undetected | Flags.Excluded_Undetected;
252 protected virtual void SetMemberName (MemberName new_name)
254 member_name = new_name;
259 /// Tests presence of ObsoleteAttribute and report proper error
261 protected void CheckUsageOfObsoleteAttribute (Type type)
266 ObsoleteAttribute obsolete_attr = AttributeTester.GetObsoleteAttribute (type);
267 if (obsolete_attr == null)
270 AttributeTester.Report_ObsoleteMessage (obsolete_attr, type.FullName, Location);
273 public abstract bool Define ();
276 // Returns full member name for error message
278 public virtual string GetSignatureForError ()
284 /// Use this method when MethodBuilder is null
286 public virtual string GetSignatureForError (TypeContainer tc)
292 /// Base Emit method. This is also entry point for CLS-Compliant verification.
294 public virtual void Emit ()
296 // Hack with Parent == null is for EnumMember
297 if (Parent == null || (GetObsoleteAttribute (Parent) == null && Parent.GetObsoleteAttribute (Parent) == null))
298 VerifyObsoleteAttribute ();
300 if (!RootContext.VerifyClsCompliance)
303 VerifyClsCompliance (Parent);
306 public bool InUnsafe {
308 return ((ModFlags & Modifiers.UNSAFE) != 0) || Parent.UnsafeContext;
312 public virtual bool IsUsed {
314 return (caching_flags & Flags.IsUsed) != 0;
318 public void SetMemberIsUsed ()
320 caching_flags |= Flags.IsUsed;
324 // Whehter is it ok to use an unsafe pointer in this type container
326 public bool UnsafeOK (DeclSpace parent)
329 // First check if this MemberCore modifier flags has unsafe set
331 if ((ModFlags & Modifiers.UNSAFE) != 0)
334 if (parent.UnsafeContext)
337 Expression.UnsafeError (Location);
342 /// Returns instance of ObsoleteAttribute for this MemberCore
344 public ObsoleteAttribute GetObsoleteAttribute (DeclSpace ds)
346 // ((flags & (Flags.Obsolete_Undetected | Flags.Obsolete)) == 0) is slower, but why ?
347 if ((caching_flags & Flags.Obsolete_Undetected) == 0 && (caching_flags & Flags.Obsolete) == 0) {
351 caching_flags &= ~Flags.Obsolete_Undetected;
353 if (OptAttributes == null)
356 Attribute obsolete_attr = OptAttributes.Search (
357 TypeManager.obsolete_attribute_type, ds.EmitContext);
358 if (obsolete_attr == null)
361 ObsoleteAttribute obsolete = obsolete_attr.GetObsoleteAttribute (ds.EmitContext);
362 if (obsolete == null)
365 caching_flags |= Flags.Obsolete;
370 /// Analyze whether CLS-Compliant verification must be execute for this MemberCore.
372 public override bool IsClsCompliaceRequired (DeclSpace container)
374 if ((caching_flags & Flags.ClsCompliance_Undetected) == 0)
375 return (caching_flags & Flags.ClsCompliant) != 0;
377 if (GetClsCompliantAttributeValue (container) && IsExposedFromAssembly (container)) {
378 caching_flags &= ~Flags.ClsCompliance_Undetected;
379 caching_flags |= Flags.ClsCompliant;
383 caching_flags &= ~Flags.ClsCompliance_Undetected;
388 /// Returns true when MemberCore is exposed from assembly.
390 public bool IsExposedFromAssembly (DeclSpace ds)
392 if ((ModFlags & (Modifiers.PUBLIC | Modifiers.PROTECTED)) == 0)
395 DeclSpace parentContainer = ds;
396 while (parentContainer != null && parentContainer.ModFlags != 0) {
397 if ((parentContainer.ModFlags & (Modifiers.PUBLIC | Modifiers.PROTECTED)) == 0)
399 parentContainer = parentContainer.Parent;
405 /// Resolve CLSCompliantAttribute value or gets cached value.
407 bool GetClsCompliantAttributeValue (DeclSpace ds)
409 if (OptAttributes != null) {
410 Attribute cls_attribute = OptAttributes.Search (
411 TypeManager.cls_compliant_attribute_type, ds.EmitContext);
412 if (cls_attribute != null) {
413 caching_flags |= Flags.HasClsCompliantAttribute;
414 return cls_attribute.GetClsCompliantAttributeValue (ds.EmitContext);
417 return ds.GetClsCompliantAttributeValue ();
421 /// Returns true if MemberCore is explicitly marked with CLSCompliantAttribute
423 protected bool HasClsCompliantAttribute {
425 return (caching_flags & Flags.HasClsCompliantAttribute) != 0;
430 /// It helps to handle error 102 & 111 detection
432 public virtual bool MarkForDuplicationCheck ()
438 /// The main virtual method for CLS-Compliant verifications.
439 /// The method returns true if member is CLS-Compliant and false if member is not
440 /// CLS-Compliant which means that CLS-Compliant tests are not necessary. A descendants override it
441 /// and add their extra verifications.
443 protected virtual bool VerifyClsCompliance (DeclSpace ds)
445 if (!IsClsCompliaceRequired (ds)) {
446 if (HasClsCompliantAttribute && RootContext.WarningLevel >= 2) {
447 if (!IsExposedFromAssembly (ds))
448 Report.Warning (3019, Location, "CLS compliance checking will not be performed on '{0}' because it is private or internal", GetSignatureForError ());
449 if (!CodeGen.Assembly.IsClsCompliant)
450 Report.Warning (3021, Location, "'{0}' does not need a CLSCompliant attribute because the assembly does not have a CLSCompliant attribute", GetSignatureForError ());
455 if (!CodeGen.Assembly.IsClsCompliant) {
456 if (HasClsCompliantAttribute) {
457 Report.Error (3014, Location, "'{0}' cannot be marked as CLS-compliant because the assembly does not have a CLSCompliant attribute", GetSignatureForError ());
462 int index = Name.LastIndexOf ('.');
463 if (Name [index > 0 ? index + 1 : 0] == '_') {
464 Report.Error (3008, Location, "Identifier '{0}' is not CLS-compliant", GetSignatureForError () );
469 protected abstract void VerifyObsoleteAttribute ();
472 // Raised (and passed an XmlElement that contains the comment)
473 // when GenerateDocComment is writing documentation expectedly.
475 internal virtual void OnGenerateDocComment (DeclSpace ds, XmlElement intermediateNode)
480 // Returns a string that represents the signature for this
481 // member which should be used in XML documentation.
483 public virtual string GetDocCommentName (DeclSpace ds)
485 if (ds == null || this is DeclSpace)
486 return DocCommentHeader + Name;
488 return String.Concat (DocCommentHeader, ds.Name, ".", Name);
492 // Generates xml doc comments (if any), and if required,
493 // handle warning report.
495 internal virtual void GenerateDocComment (DeclSpace ds)
497 DocUtil.GenerateDocComment (this, ds);
502 /// Base class for structs, classes, enumerations and interfaces.
505 /// They all create new declaration spaces. This
506 /// provides the common foundation for managing those name
509 public abstract class DeclSpace : MemberCore, IAlias {
511 /// This points to the actual definition that is being
512 /// created with System.Reflection.Emit
514 public TypeBuilder TypeBuilder;
517 // This is the namespace in which this typecontainer
518 // was declared. We use this to resolve names.
520 public NamespaceEntry NamespaceEntry;
522 private Hashtable Cache = new Hashtable ();
524 public string Basename;
526 protected Hashtable defined_names;
528 // The emit context for toplevel objects.
529 protected EmitContext ec;
531 public EmitContext EmitContext {
535 static string[] attribute_targets = new string [] { "type" };
537 public DeclSpace (NamespaceEntry ns, TypeContainer parent, MemberName name,
538 Attributes attrs, Location l)
539 : base (parent, name, attrs, l)
542 Basename = name.Name;
543 defined_names = new Hashtable ();
547 /// Adds the member to defined_names table. It tests for duplications and enclosing name conflicts
549 protected bool AddToContainer (MemberCore symbol, string name)
551 if (name == Basename && !(this is Interface) && !(this is Enum)) {
552 Report.SymbolRelatedToPreviousError (this);
553 Report.Error (542, symbol.Location, "'{0}': member names cannot be the same as their enclosing type", symbol.GetSignatureForError ());
557 MemberCore mc = (MemberCore) defined_names [name];
560 defined_names.Add (name, symbol);
564 if (symbol.MarkForDuplicationCheck () && mc.MarkForDuplicationCheck ())
567 Report.SymbolRelatedToPreviousError (mc);
568 Report.Error (102, symbol.Location, "The type '{0}' already contains a definition for '{1}'", GetSignatureForError (), name);
572 public void RecordDecl ()
574 if ((NamespaceEntry != null) && (Parent == RootContext.Tree.Types))
575 NamespaceEntry.DefineName (MemberName.Basename, this);
579 /// Returns the MemberCore associated with a given name in the declaration
580 /// space. It doesn't return method based symbols !!
583 public MemberCore GetDefinition (string name)
585 return (MemberCore)defined_names [name];
588 bool in_transit = false;
591 /// This function is used to catch recursive definitions
594 public bool InTransit {
605 // root_types contains all the types. All TopLevel types
606 // hence have a parent that points to `root_types', that is
607 // why there is a non-obvious test down here.
609 public bool IsTopLevel {
612 if (Parent.Parent == null)
619 public virtual void CloseType ()
621 if ((caching_flags & Flags.CloseTypeCreated) == 0){
623 TypeBuilder.CreateType ();
626 // The try/catch is needed because
627 // nested enumerations fail to load when they
630 // Even if this is the right order (enumerations
631 // declared after types).
633 // Note that this still creates the type and
634 // it is possible to save it
636 caching_flags |= Flags.CloseTypeCreated;
640 protected virtual TypeAttributes TypeAttr {
642 return CodeGen.Module.DefaultCharSetType;
647 /// Should be overriten by the appropriate declaration space
649 public abstract TypeBuilder DefineType ();
652 /// Define all members, but don't apply any attributes or do anything which may
653 /// access not-yet-defined classes. This method also creates the MemberCache.
655 public abstract bool DefineMembers (TypeContainer parent);
658 // Whether this is an `unsafe context'
660 public bool UnsafeContext {
662 if ((ModFlags & Modifiers.UNSAFE) != 0)
665 return Parent.UnsafeContext;
670 EmitContext type_resolve_ec;
671 protected EmitContext TypeResolveEmitContext {
673 if (type_resolve_ec == null) {
674 // FIXME: I think this should really be one of:
676 // a. type_resolve_ec = Parent.EmitContext;
677 // b. type_resolve_ec = new EmitContext (Parent, Parent, loc, null, null, ModFlags, false);
679 // However, if Parent == RootContext.Tree.Types, its NamespaceEntry will be null.
681 type_resolve_ec = new EmitContext (Parent, this, Location.Null, null, null, ModFlags, false);
683 return type_resolve_ec;
688 // Resolves the expression `e' for a type, and will recursively define
689 // types. This should only be used for resolving base types.
691 public TypeExpr ResolveBaseTypeExpr (Expression e, bool silent, Location loc)
693 TypeResolveEmitContext.loc = loc;
694 TypeResolveEmitContext.ContainerType = TypeBuilder;
696 return e.ResolveAsTypeTerminal (TypeResolveEmitContext, silent);
699 public bool CheckAccessLevel (Type check_type)
701 if (check_type == TypeBuilder)
704 TypeAttributes check_attr = check_type.Attributes & TypeAttributes.VisibilityMask;
707 // Broken Microsoft runtime, return public for arrays, no matter what
708 // the accessibility is for their underlying class, and they return
709 // NonPublic visibility for pointers
711 if (check_type.IsArray || check_type.IsPointer)
712 return CheckAccessLevel (TypeManager.GetElementType (check_type));
714 if (TypeBuilder == null)
715 // FIXME: TypeBuilder will be null when invoked by Class.GetNormalBases().
716 // However, this is invoked again later -- so safe to return true.
717 // May also be null when resolving top-level attributes.
721 case TypeAttributes.Public:
724 case TypeAttributes.NotPublic:
726 // This test should probably use the declaringtype.
728 return check_type.Assembly == TypeBuilder.Assembly;
730 case TypeAttributes.NestedPublic:
733 case TypeAttributes.NestedPrivate:
734 return NestedAccessible (check_type);
736 case TypeAttributes.NestedFamily:
737 return FamilyAccessible (check_type);
739 case TypeAttributes.NestedFamANDAssem:
740 return (check_type.Assembly == TypeBuilder.Assembly) &&
741 FamilyAccessible (check_type);
743 case TypeAttributes.NestedFamORAssem:
744 return (check_type.Assembly == TypeBuilder.Assembly) ||
745 FamilyAccessible (check_type);
747 case TypeAttributes.NestedAssembly:
748 return check_type.Assembly == TypeBuilder.Assembly;
751 Console.WriteLine ("HERE: " + check_attr);
756 protected bool NestedAccessible (Type check_type)
758 Type declaring = check_type.DeclaringType;
759 return TypeBuilder == declaring ||
760 TypeManager.IsNestedChildOf (TypeBuilder, declaring);
763 protected bool FamilyAccessible (Type check_type)
765 Type declaring = check_type.DeclaringType;
766 if (TypeBuilder == declaring ||
767 TypeBuilder.IsSubclassOf (declaring))
770 return NestedAccessible (check_type);
773 // Access level of a type.
775 enum AccessLevel { // Each column represents `is this scope larger or equal to Blah scope'
776 // Public Assembly Protected
777 Protected = (0 << 0) | (0 << 1) | (X << 2),
778 Public = (X << 0) | (X << 1) | (X << 2),
779 Private = (0 << 0) | (0 << 1) | (0 << 2),
780 Internal = (0 << 0) | (X << 1) | (0 << 2),
781 ProtectedOrInternal = (0 << 0) | (X << 1) | (X << 2),
784 static AccessLevel GetAccessLevelFromModifiers (int flags)
786 if ((flags & Modifiers.INTERNAL) != 0) {
788 if ((flags & Modifiers.PROTECTED) != 0)
789 return AccessLevel.ProtectedOrInternal;
791 return AccessLevel.Internal;
793 } else if ((flags & Modifiers.PROTECTED) != 0)
794 return AccessLevel.Protected;
796 else if ((flags & Modifiers.PRIVATE) != 0)
797 return AccessLevel.Private;
800 return AccessLevel.Public;
803 // What is the effective access level of this?
805 AccessLevel EffectiveAccessLevel {
807 AccessLevel myAccess = GetAccessLevelFromModifiers (ModFlags);
808 if (!IsTopLevel && (Parent != null))
809 return myAccess & Parent.EffectiveAccessLevel;
815 // Return the access level for type `t'
816 static AccessLevel TypeEffectiveAccessLevel (Type t)
819 return AccessLevel.Public;
820 if (t.IsNestedPrivate)
821 return AccessLevel.Private;
823 return AccessLevel.Internal;
825 // By now, it must be nested
826 AccessLevel parentLevel = TypeEffectiveAccessLevel (t.DeclaringType);
828 if (t.IsNestedPublic)
830 if (t.IsNestedAssembly)
831 return parentLevel & AccessLevel.Internal;
832 if (t.IsNestedFamily)
833 return parentLevel & AccessLevel.Protected;
834 if (t.IsNestedFamORAssem)
835 return parentLevel & AccessLevel.ProtectedOrInternal;
836 if (t.IsNestedFamANDAssem)
837 throw new NotImplementedException ("NestedFamANDAssem not implemented, cant make this kind of type from c# anyways");
839 // nested private is taken care of
841 throw new Exception ("I give up, what are you?");
845 // This answers `is the type P, as accessible as a member M which has the
846 // accessability @flags which is declared as a nested member of the type T, this declspace'
848 public bool AsAccessible (Type p, int flags)
851 // 1) if M is private, its accessability is the same as this declspace.
852 // we already know that P is accessible to T before this method, so we
856 if ((flags & Modifiers.PRIVATE) != 0)
859 while (p.IsArray || p.IsPointer || p.IsByRef)
860 p = TypeManager.GetElementType (p);
862 AccessLevel pAccess = TypeEffectiveAccessLevel (p);
863 AccessLevel mAccess = this.EffectiveAccessLevel &
864 GetAccessLevelFromModifiers (flags);
866 // for every place from which we can access M, we must
867 // be able to access P as well. So, we want
868 // For every bit in M and P, M_i -> P_1 == true
869 // or, ~ (M -> P) == 0 <-> ~ ( ~M | P) == 0
871 return ~ (~ mAccess | pAccess) == 0;
874 public static void Error_AmbiguousTypeReference (Location loc, string name, string t1, string t2)
876 Report.Error (104, loc,
877 "`{0}' is an ambiguous reference ({1} or {2})",
882 // Return the nested type with name @name. Ensures that the nested type
883 // is defined if necessary. Do _not_ use this when you have a MemberCache handy.
885 public virtual Type FindNestedType (string name)
890 private Type LookupNestedTypeInHierarchy (string name)
892 // if the member cache has been created, lets use it.
893 // the member cache is MUCH faster.
894 if (MemberCache != null)
895 return MemberCache.FindNestedType (name);
897 // no member cache. Do it the hard way -- reflection
899 for (Type current_type = TypeBuilder;
900 current_type != null && current_type != TypeManager.object_type;
901 current_type = current_type.BaseType) {
902 if (current_type is TypeBuilder) {
903 DeclSpace decl = this;
904 if (current_type != TypeBuilder)
905 decl = TypeManager.LookupDeclSpace (current_type);
906 t = decl.FindNestedType (name);
908 t = TypeManager.GetNestedType (current_type, name);
911 if (t != null && CheckAccessLevel (t))
919 // Public function used to locate types, this can only
920 // be used after the ResolveTree function has been invoked.
922 // Set 'ignore_cs0104' to true if you want to ignore cs0104 errors.
924 // Returns: Type or null if they type can not be found.
926 public FullNamedExpression LookupType (string name, Location loc, bool ignore_cs0104)
928 if (this is PartialContainer)
929 throw new InternalErrorException ("Should not get here");
931 if (Cache.Contains (name))
932 return (FullNamedExpression) Cache [name];
934 FullNamedExpression e;
935 Type t = LookupNestedTypeInHierarchy (name);
937 e = new TypeExpression (t, Location.Null);
938 else if (Parent != null && Parent != RootContext.Tree.Types)
939 e = Parent.LookupType (name, loc, ignore_cs0104);
941 e = NamespaceEntry.LookupNamespaceOrType (this, name, loc, ignore_cs0104);
948 /// This function is broken and not what you're looking for. It should only
949 /// be used while the type is still being created since it doesn't use the cache
950 /// and relies on the filter doing the member name check.
952 public abstract MemberList FindMembers (MemberTypes mt, BindingFlags bf,
953 MemberFilter filter, object criteria);
956 /// If we have a MemberCache, return it. This property may return null if the
957 /// class doesn't have a member cache or while it's still being created.
959 public abstract MemberCache MemberCache {
963 public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
965 if (a.Type == TypeManager.required_attr_type) {
966 Report.Error (1608, a.Location, "The RequiredAttribute attribute is not permitted on C# types");
969 TypeBuilder.SetCustomAttribute (cb);
973 /// Goes through class hierarchy and get value of first CLSCompliantAttribute that found.
974 /// If no is attribute exists then return assembly CLSCompliantAttribute.
976 public bool GetClsCompliantAttributeValue ()
978 if ((caching_flags & Flags.HasCompliantAttribute_Undetected) == 0)
979 return (caching_flags & Flags.ClsCompliantAttributeTrue) != 0;
981 caching_flags &= ~Flags.HasCompliantAttribute_Undetected;
983 if (OptAttributes != null) {
984 Attribute cls_attribute = OptAttributes.Search (TypeManager.cls_compliant_attribute_type, ec);
985 if (cls_attribute != null) {
986 caching_flags |= Flags.HasClsCompliantAttribute;
987 if (cls_attribute.GetClsCompliantAttributeValue (ec)) {
988 caching_flags |= Flags.ClsCompliantAttributeTrue;
995 if (Parent == null) {
996 if (CodeGen.Assembly.IsClsCompliant) {
997 caching_flags |= Flags.ClsCompliantAttributeTrue;
1003 if (Parent.GetClsCompliantAttributeValue ()) {
1004 caching_flags |= Flags.ClsCompliantAttributeTrue;
1010 public override string[] ValidAttributeTargets {
1012 return attribute_targets;
1016 bool IAlias.IsType {
1017 get { return true; }
1020 string IAlias.Name {
1021 get { return Name; }
1024 TypeExpr IAlias.ResolveAsType (EmitContext ec)
1026 if (TypeBuilder == null)
1027 throw new InvalidOperationException ();
1029 return new TypeExpression (TypeBuilder, Location);
1034 /// This is a readonly list of MemberInfo's.
1036 public class MemberList : IList {
1037 public readonly IList List;
1041 /// Create a new MemberList from the given IList.
1043 public MemberList (IList list)
1048 this.List = new ArrayList ();
1053 /// Concatenate the ILists `first' and `second' to a new MemberList.
1055 public MemberList (IList first, IList second)
1057 ArrayList list = new ArrayList ();
1058 list.AddRange (first);
1059 list.AddRange (second);
1064 public static readonly MemberList Empty = new MemberList (new ArrayList ());
1067 /// Cast the MemberList into a MemberInfo[] array.
1070 /// This is an expensive operation, only use it if it's really necessary.
1072 public static explicit operator MemberInfo [] (MemberList list)
1074 Timer.StartTimer (TimerType.MiscTimer);
1075 MemberInfo [] result = new MemberInfo [list.Count];
1076 list.CopyTo (result, 0);
1077 Timer.StopTimer (TimerType.MiscTimer);
1089 public bool IsSynchronized {
1091 return List.IsSynchronized;
1095 public object SyncRoot {
1097 return List.SyncRoot;
1101 public void CopyTo (Array array, int index)
1103 List.CopyTo (array, index);
1108 public IEnumerator GetEnumerator ()
1110 return List.GetEnumerator ();
1115 public bool IsFixedSize {
1121 public bool IsReadOnly {
1127 object IList.this [int index] {
1129 return List [index];
1133 throw new NotSupportedException ();
1137 // FIXME: try to find out whether we can avoid the cast in this indexer.
1138 public MemberInfo this [int index] {
1140 return (MemberInfo) List [index];
1144 public int Add (object value)
1146 throw new NotSupportedException ();
1149 public void Clear ()
1151 throw new NotSupportedException ();
1154 public bool Contains (object value)
1156 return List.Contains (value);
1159 public int IndexOf (object value)
1161 return List.IndexOf (value);
1164 public void Insert (int index, object value)
1166 throw new NotSupportedException ();
1169 public void Remove (object value)
1171 throw new NotSupportedException ();
1174 public void RemoveAt (int index)
1176 throw new NotSupportedException ();
1181 /// This interface is used to get all members of a class when creating the
1182 /// member cache. It must be implemented by all DeclSpace derivatives which
1183 /// want to support the member cache and by TypeHandle to get caching of
1184 /// non-dynamic types.
1186 public interface IMemberContainer {
1188 /// The name of the IMemberContainer. This is only used for
1189 /// debugging purposes.
1196 /// The type of this IMemberContainer.
1203 /// Returns the IMemberContainer of the base class or null if this
1204 /// is an interface or TypeManger.object_type.
1205 /// This is used when creating the member cache for a class to get all
1206 /// members from the base class.
1208 MemberCache BaseCache {
1213 /// Whether this is an interface.
1220 /// Returns all members of this class with the corresponding MemberTypes
1221 /// and BindingFlags.
1224 /// When implementing this method, make sure not to return any inherited
1225 /// members and check the MemberTypes and BindingFlags properly.
1226 /// Unfortunately, System.Reflection is lame and doesn't provide a way to
1227 /// get the BindingFlags (static/non-static,public/non-public) in the
1228 /// MemberInfo class, but the cache needs this information. That's why
1229 /// this method is called multiple times with different BindingFlags.
1231 MemberList GetMembers (MemberTypes mt, BindingFlags bf);
1234 /// Return the container's member cache.
1236 MemberCache MemberCache {
1242 /// The MemberCache is used by dynamic and non-dynamic types to speed up
1243 /// member lookups. It has a member name based hash table; it maps each member
1244 /// name to a list of CacheEntry objects. Each CacheEntry contains a MemberInfo
1245 /// and the BindingFlags that were initially used to get it. The cache contains
1246 /// all members of the current class and all inherited members. If this cache is
1247 /// for an interface types, it also contains all inherited members.
1249 /// There are two ways to get a MemberCache:
1250 /// * if this is a dynamic type, lookup the corresponding DeclSpace and then
1251 /// use the DeclSpace.MemberCache property.
1252 /// * if this not a dynamic type, call TypeHandle.GetTypeHandle() to get a
1253 /// TypeHandle instance for the type and then use TypeHandle.MemberCache.
1255 public class MemberCache {
1256 public readonly IMemberContainer Container;
1257 protected Hashtable member_hash;
1258 protected Hashtable method_hash;
1261 /// Create a new MemberCache for the given IMemberContainer `container'.
1263 public MemberCache (IMemberContainer container)
1265 this.Container = container;
1267 Timer.IncrementCounter (CounterType.MemberCache);
1268 Timer.StartTimer (TimerType.CacheInit);
1270 // If we have a base class (we have a base class unless we're
1271 // TypeManager.object_type), we deep-copy its MemberCache here.
1272 if (Container.BaseCache != null)
1273 member_hash = SetupCache (Container.BaseCache);
1275 member_hash = new Hashtable ();
1277 // If this is neither a dynamic type nor an interface, create a special
1278 // method cache with all declared and inherited methods.
1279 Type type = container.Type;
1280 if (!(type is TypeBuilder) && !type.IsInterface &&
1281 (Container.BaseCache == null || Container.BaseCache.method_hash != null)) {
1282 method_hash = new Hashtable ();
1286 // Add all members from the current class.
1287 AddMembers (Container);
1289 Timer.StopTimer (TimerType.CacheInit);
1292 public MemberCache (Type[] ifaces)
1295 // The members of this cache all belong to other caches.
1296 // So, 'Container' will not be used.
1298 this.Container = null;
1300 member_hash = new Hashtable ();
1304 foreach (Type itype in ifaces)
1305 AddCacheContents (TypeManager.LookupMemberCache (itype));
1309 /// Bootstrap this member cache by doing a deep-copy of our base.
1311 Hashtable SetupCache (MemberCache base_class)
1313 Hashtable hash = new Hashtable ();
1315 if (base_class == null)
1318 IDictionaryEnumerator it = base_class.member_hash.GetEnumerator ();
1319 while (it.MoveNext ()) {
1320 hash [it.Key] = ((ArrayList) it.Value).Clone ();
1327 /// Add the contents of `cache' to the member_hash.
1329 void AddCacheContents (MemberCache cache)
1331 IDictionaryEnumerator it = cache.member_hash.GetEnumerator ();
1332 while (it.MoveNext ()) {
1333 ArrayList list = (ArrayList) member_hash [it.Key];
1335 member_hash [it.Key] = list = new ArrayList ();
1337 ArrayList entries = (ArrayList) it.Value;
1338 for (int i = entries.Count-1; i >= 0; i--) {
1339 CacheEntry entry = (CacheEntry) entries [i];
1341 if (entry.Container != cache.Container)
1349 /// Add all members from class `container' to the cache.
1351 void AddMembers (IMemberContainer container)
1353 // We need to call AddMembers() with a single member type at a time
1354 // to get the member type part of CacheEntry.EntryType right.
1355 if (!container.IsInterface) {
1356 AddMembers (MemberTypes.Constructor, container);
1357 AddMembers (MemberTypes.Field, container);
1359 AddMembers (MemberTypes.Method, container);
1360 AddMembers (MemberTypes.Property, container);
1361 AddMembers (MemberTypes.Event, container);
1362 // Nested types are returned by both Static and Instance searches.
1363 AddMembers (MemberTypes.NestedType,
1364 BindingFlags.Static | BindingFlags.Public, container);
1365 AddMembers (MemberTypes.NestedType,
1366 BindingFlags.Static | BindingFlags.NonPublic, container);
1369 void AddMembers (MemberTypes mt, IMemberContainer container)
1371 AddMembers (mt, BindingFlags.Static | BindingFlags.Public, container);
1372 AddMembers (mt, BindingFlags.Static | BindingFlags.NonPublic, container);
1373 AddMembers (mt, BindingFlags.Instance | BindingFlags.Public, container);
1374 AddMembers (mt, BindingFlags.Instance | BindingFlags.NonPublic, container);
1378 /// Add all members from class `container' with the requested MemberTypes and
1379 /// BindingFlags to the cache. This method is called multiple times with different
1380 /// MemberTypes and BindingFlags.
1382 void AddMembers (MemberTypes mt, BindingFlags bf, IMemberContainer container)
1384 MemberList members = container.GetMembers (mt, bf);
1386 foreach (MemberInfo member in members) {
1387 string name = member.Name;
1389 // We use a name-based hash table of ArrayList's.
1390 ArrayList list = (ArrayList) member_hash [name];
1392 list = new ArrayList ();
1393 member_hash.Add (name, list);
1396 // When this method is called for the current class, the list will
1397 // already contain all inherited members from our base classes.
1398 // We cannot add new members in front of the list since this'd be an
1399 // expensive operation, that's why the list is sorted in reverse order
1400 // (ie. members from the current class are coming last).
1401 list.Add (new CacheEntry (container, member, mt, bf));
1406 /// Add all declared and inherited methods from class `type' to the method cache.
1408 void AddMethods (Type type)
1410 AddMethods (BindingFlags.Static | BindingFlags.Public |
1411 BindingFlags.FlattenHierarchy, type);
1412 AddMethods (BindingFlags.Static | BindingFlags.NonPublic |
1413 BindingFlags.FlattenHierarchy, type);
1414 AddMethods (BindingFlags.Instance | BindingFlags.Public, type);
1415 AddMethods (BindingFlags.Instance | BindingFlags.NonPublic, type);
1418 void AddMethods (BindingFlags bf, Type type)
1421 // Consider the case:
1423 // class X { public virtual int f() {} }
1426 // When processing 'Y', the method_cache will already have a copy of 'f',
1427 // with ReflectedType == X. However, we want to ensure that its ReflectedType == Y
1429 MethodBase [] members = type.GetMethods (bf);
1431 Array.Reverse (members);
1433 foreach (MethodBase member in members) {
1434 string name = member.Name;
1436 // We use a name-based hash table of ArrayList's.
1437 ArrayList list = (ArrayList) method_hash [name];
1439 list = new ArrayList ();
1440 method_hash.Add (name, list);
1443 MethodInfo curr = (MethodInfo) member;
1444 while (curr.IsVirtual && (curr.Attributes & MethodAttributes.NewSlot) == 0) {
1445 MethodInfo base_method = curr.GetBaseDefinition ();
1447 if (base_method == curr) {
1449 // Both mcs and CSC 1.1 seem to emit a somewhat broken
1450 // ...Invoke () function for delegates: it's missing a 'newslot'.
1451 // CSC 2.0 emits a 'newslot' for a delegate's Invoke.
1453 // Also, CSC 1.1 appears to emit 'Finalize' without a newslot.
1455 if ((member.Name != "Invoke" ||
1456 !type.IsSubclassOf (TypeManager.multicast_delegate_type)) &&
1457 (member.Name != "Finalize" ||
1458 type != TypeManager.object_type)) {
1459 Report.SymbolRelatedToPreviousError (base_method);
1460 Report.Warning (-28,
1461 "The method '{0}' is marked 'override'," +
1462 " but doesn't appear to override any virtual or abstract method:" +
1463 " it may be ignored during overload resolution",
1464 TypeManager.CSharpSignature (base_method));
1470 list.Add (new CacheEntry (null, base_method, MemberTypes.Method, bf));
1474 // Unfortunately, the elements returned by Type.GetMethods() aren't
1475 // sorted so we need to do this check for every member.
1476 BindingFlags new_bf = bf;
1477 if (member.DeclaringType == type)
1478 new_bf |= BindingFlags.DeclaredOnly;
1480 list.Add (new CacheEntry (Container, member, MemberTypes.Method, new_bf));
1485 /// Compute and return a appropriate `EntryType' magic number for the given
1486 /// MemberTypes and BindingFlags.
1488 protected static EntryType GetEntryType (MemberTypes mt, BindingFlags bf)
1490 EntryType type = EntryType.None;
1492 if ((mt & MemberTypes.Constructor) != 0)
1493 type |= EntryType.Constructor;
1494 if ((mt & MemberTypes.Event) != 0)
1495 type |= EntryType.Event;
1496 if ((mt & MemberTypes.Field) != 0)
1497 type |= EntryType.Field;
1498 if ((mt & MemberTypes.Method) != 0)
1499 type |= EntryType.Method;
1500 if ((mt & MemberTypes.Property) != 0)
1501 type |= EntryType.Property;
1502 // Nested types are returned by static and instance searches.
1503 if ((mt & MemberTypes.NestedType) != 0)
1504 type |= EntryType.NestedType | EntryType.Static | EntryType.Instance;
1506 if ((bf & BindingFlags.Instance) != 0)
1507 type |= EntryType.Instance;
1508 if ((bf & BindingFlags.Static) != 0)
1509 type |= EntryType.Static;
1510 if ((bf & BindingFlags.Public) != 0)
1511 type |= EntryType.Public;
1512 if ((bf & BindingFlags.NonPublic) != 0)
1513 type |= EntryType.NonPublic;
1514 if ((bf & BindingFlags.DeclaredOnly) != 0)
1515 type |= EntryType.Declared;
1521 /// The `MemberTypes' enumeration type is a [Flags] type which means that it may
1522 /// denote multiple member types. Returns true if the given flags value denotes a
1523 /// single member types.
1525 public static bool IsSingleMemberType (MemberTypes mt)
1528 case MemberTypes.Constructor:
1529 case MemberTypes.Event:
1530 case MemberTypes.Field:
1531 case MemberTypes.Method:
1532 case MemberTypes.Property:
1533 case MemberTypes.NestedType:
1542 /// We encode the MemberTypes and BindingFlags of each members in a "magic"
1543 /// number to speed up the searching process.
1546 protected enum EntryType {
1551 MaskStatic = Instance|Static,
1555 MaskProtection = Public|NonPublic,
1559 Constructor = 0x020,
1566 MaskType = Constructor|Event|Field|Method|Property|NestedType
1569 protected class CacheEntry {
1570 public readonly IMemberContainer Container;
1571 public readonly EntryType EntryType;
1572 public readonly MemberInfo Member;
1574 public CacheEntry (IMemberContainer container, MemberInfo member,
1575 MemberTypes mt, BindingFlags bf)
1577 this.Container = container;
1578 this.Member = member;
1579 this.EntryType = GetEntryType (mt, bf);
1582 public override string ToString ()
1584 return String.Format ("CacheEntry ({0}:{1}:{2})", Container.Name,
1590 /// This is called each time we're walking up one level in the class hierarchy
1591 /// and checks whether we can abort the search since we've already found what
1592 /// we were looking for.
1594 protected bool DoneSearching (ArrayList list)
1597 // We've found exactly one member in the current class and it's not
1598 // a method or constructor.
1600 if (list.Count == 1 && !(list [0] is MethodBase))
1604 // Multiple properties: we query those just to find out the indexer
1607 if ((list.Count > 0) && (list [0] is PropertyInfo))
1614 /// Looks up members with name `name'. If you provide an optional
1615 /// filter function, it'll only be called with members matching the
1616 /// requested member name.
1618 /// This method will try to use the cache to do the lookup if possible.
1620 /// Unlike other FindMembers implementations, this method will always
1621 /// check all inherited members - even when called on an interface type.
1623 /// If you know that you're only looking for methods, you should use
1624 /// MemberTypes.Method alone since this speeds up the lookup a bit.
1625 /// When doing a method-only search, it'll try to use a special method
1626 /// cache (unless it's a dynamic type or an interface) and the returned
1627 /// MemberInfo's will have the correct ReflectedType for inherited methods.
1628 /// The lookup process will automatically restart itself in method-only
1629 /// search mode if it discovers that it's about to return methods.
1631 ArrayList global = new ArrayList ();
1632 bool using_global = false;
1634 static MemberInfo [] emptyMemberInfo = new MemberInfo [0];
1636 public MemberInfo [] FindMembers (MemberTypes mt, BindingFlags bf, string name,
1637 MemberFilter filter, object criteria)
1640 throw new Exception ();
1642 bool declared_only = (bf & BindingFlags.DeclaredOnly) != 0;
1643 bool method_search = mt == MemberTypes.Method;
1644 // If we have a method cache and we aren't already doing a method-only search,
1645 // then we restart a method search if the first match is a method.
1646 bool do_method_search = !method_search && (method_hash != null);
1648 ArrayList applicable;
1650 // If this is a method-only search, we try to use the method cache if
1651 // possible; a lookup in the method cache will return a MemberInfo with
1652 // the correct ReflectedType for inherited methods.
1654 if (method_search && (method_hash != null))
1655 applicable = (ArrayList) method_hash [name];
1657 applicable = (ArrayList) member_hash [name];
1659 if (applicable == null)
1660 return emptyMemberInfo;
1663 // 32 slots gives 53 rss/54 size
1664 // 2/4 slots gives 55 rss
1666 // Strange: from 25,000 calls, only 1,800
1667 // are above 2. Why does this impact it?
1670 using_global = true;
1672 Timer.StartTimer (TimerType.CachedLookup);
1674 EntryType type = GetEntryType (mt, bf);
1676 IMemberContainer current = Container;
1679 // `applicable' is a list of all members with the given member name `name'
1680 // in the current class and all its base classes. The list is sorted in
1681 // reverse order due to the way how the cache is initialy created (to speed
1682 // things up, we're doing a deep-copy of our base).
1684 for (int i = applicable.Count-1; i >= 0; i--) {
1685 CacheEntry entry = (CacheEntry) applicable [i];
1687 // This happens each time we're walking one level up in the class
1688 // hierarchy. If we're doing a DeclaredOnly search, we must abort
1689 // the first time this happens (this may already happen in the first
1690 // iteration of this loop if there are no members with the name we're
1691 // looking for in the current class).
1692 if (entry.Container != current) {
1693 if (declared_only || DoneSearching (global))
1696 current = entry.Container;
1699 // Is the member of the correct type ?
1700 if ((entry.EntryType & type & EntryType.MaskType) == 0)
1703 // Is the member static/non-static ?
1704 if ((entry.EntryType & type & EntryType.MaskStatic) == 0)
1707 // Apply the filter to it.
1708 if (filter (entry.Member, criteria)) {
1709 if ((entry.EntryType & EntryType.MaskType) != EntryType.Method)
1710 do_method_search = false;
1711 global.Add (entry.Member);
1715 Timer.StopTimer (TimerType.CachedLookup);
1717 // If we have a method cache and we aren't already doing a method-only
1718 // search, we restart in method-only search mode if the first match is
1719 // a method. This ensures that we return a MemberInfo with the correct
1720 // ReflectedType for inherited methods.
1721 if (do_method_search && (global.Count > 0)){
1722 using_global = false;
1724 return FindMembers (MemberTypes.Method, bf, name, filter, criteria);
1727 using_global = false;
1728 MemberInfo [] copy = new MemberInfo [global.Count];
1729 global.CopyTo (copy);
1733 // find the nested type @name in @this.
1734 public Type FindNestedType (string name)
1736 ArrayList applicable = (ArrayList) member_hash [name];
1737 if (applicable == null)
1740 for (int i = applicable.Count-1; i >= 0; i--) {
1741 CacheEntry entry = (CacheEntry) applicable [i];
1742 if ((entry.EntryType & EntryType.NestedType & EntryType.MaskType) != 0)
1743 return (Type) entry.Member;
1750 // This finds the method or property for us to override. invocationType is the type where
1751 // the override is going to be declared, name is the name of the method/property, and
1752 // paramTypes is the parameters, if any to the method or property
1754 // Because the MemberCache holds members from this class and all the base classes,
1755 // we can avoid tons of reflection stuff.
1757 public MemberInfo FindMemberToOverride (Type invocationType, string name, Type [] paramTypes, bool is_property)
1759 ArrayList applicable;
1760 if (method_hash != null && !is_property)
1761 applicable = (ArrayList) method_hash [name];
1763 applicable = (ArrayList) member_hash [name];
1765 if (applicable == null)
1768 // Walk the chain of methods, starting from the top.
1770 for (int i = applicable.Count - 1; i >= 0; i--) {
1771 CacheEntry entry = (CacheEntry) applicable [i];
1773 if ((entry.EntryType & (is_property ? (EntryType.Property | EntryType.Field) : EntryType.Method)) == 0)
1776 PropertyInfo pi = null;
1777 MethodInfo mi = null;
1778 FieldInfo fi = null;
1779 Type [] cmpAttrs = null;
1782 if ((entry.EntryType & EntryType.Field) != 0) {
1783 fi = (FieldInfo)entry.Member;
1785 // TODO: For this case we ignore member type
1786 //fb = TypeManager.GetField (fi);
1787 //cmpAttrs = new Type[] { fb.MemberType };
1789 pi = (PropertyInfo) entry.Member;
1790 cmpAttrs = TypeManager.GetArgumentTypes (pi);
1793 mi = (MethodInfo) entry.Member;
1794 cmpAttrs = TypeManager.GetArgumentTypes (mi);
1798 // TODO: Almost duplicate !
1800 switch (fi.Attributes & FieldAttributes.FieldAccessMask) {
1801 case FieldAttributes.Private:
1803 // A private method is Ok if we are a nested subtype.
1804 // The spec actually is not very clear about this, see bug 52458.
1806 if (invocationType != entry.Container.Type &
1807 TypeManager.IsNestedChildOf (invocationType, entry.Container.Type))
1811 case FieldAttributes.FamANDAssem:
1812 case FieldAttributes.Assembly:
1814 // Check for assembly methods
1816 if (mi.DeclaringType.Assembly != CodeGen.Assembly.Builder)
1820 return entry.Member;
1824 // Check the arguments
1826 if (cmpAttrs.Length != paramTypes.Length)
1829 for (int j = cmpAttrs.Length - 1; j >= 0; j --)
1830 if (paramTypes [j] != cmpAttrs [j])
1834 // get one of the methods because this has the visibility info.
1837 mi = pi.GetGetMethod (true);
1839 mi = pi.GetSetMethod (true);
1845 switch (mi.Attributes & MethodAttributes.MemberAccessMask) {
1846 case MethodAttributes.Private:
1848 // A private method is Ok if we are a nested subtype.
1849 // The spec actually is not very clear about this, see bug 52458.
1851 if (invocationType == entry.Container.Type ||
1852 TypeManager.IsNestedChildOf (invocationType, entry.Container.Type))
1853 return entry.Member;
1856 case MethodAttributes.FamANDAssem:
1857 case MethodAttributes.Assembly:
1859 // Check for assembly methods
1861 if (mi.DeclaringType.Assembly == CodeGen.Assembly.Builder)
1862 return entry.Member;
1867 // A protected method is ok, because we are overriding.
1868 // public is always ok.
1870 return entry.Member;
1880 /// The method is looking for conflict with inherited symbols (errors CS0108, CS0109).
1881 /// We handle two cases. The first is for types without parameters (events, field, properties).
1882 /// The second are methods, indexers and this is why ignore_complex_types is here.
1883 /// The latest param is temporary hack. See DoDefineMembers method for more info.
1885 public MemberInfo FindMemberWithSameName (string name, bool ignore_complex_types, MemberInfo ignore_member)
1887 ArrayList applicable = null;
1889 if (method_hash != null)
1890 applicable = (ArrayList) method_hash [name];
1892 if (applicable != null) {
1893 for (int i = applicable.Count - 1; i >= 0; i--) {
1894 CacheEntry entry = (CacheEntry) applicable [i];
1895 if ((entry.EntryType & EntryType.Public) != 0)
1896 return entry.Member;
1900 if (member_hash == null)
1902 applicable = (ArrayList) member_hash [name];
1904 if (applicable != null) {
1905 for (int i = applicable.Count - 1; i >= 0; i--) {
1906 CacheEntry entry = (CacheEntry) applicable [i];
1907 if ((entry.EntryType & EntryType.Public) != 0 & entry.Member != ignore_member) {
1908 if (ignore_complex_types) {
1909 if ((entry.EntryType & EntryType.Method) != 0)
1912 // Does exist easier way how to detect indexer ?
1913 if ((entry.EntryType & EntryType.Property) != 0) {
1914 Type[] arg_types = TypeManager.GetArgumentTypes ((PropertyInfo)entry.Member);
1915 if (arg_types.Length > 0)
1919 return entry.Member;
1926 Hashtable locase_table;
1929 /// Builds low-case table for CLS Compliance test
1931 public Hashtable GetPublicMembers ()
1933 if (locase_table != null)
1934 return locase_table;
1936 locase_table = new Hashtable ();
1937 foreach (DictionaryEntry entry in member_hash) {
1938 ArrayList members = (ArrayList)entry.Value;
1939 for (int ii = 0; ii < members.Count; ++ii) {
1940 CacheEntry member_entry = (CacheEntry) members [ii];
1942 if ((member_entry.EntryType & EntryType.Public) == 0)
1945 // TODO: Does anyone know easier way how to detect that member is internal ?
1946 switch (member_entry.EntryType & EntryType.MaskType) {
1947 case EntryType.Constructor:
1950 case EntryType.Field:
1951 if ((((FieldInfo)member_entry.Member).Attributes & (FieldAttributes.Assembly | FieldAttributes.Public)) == FieldAttributes.Assembly)
1955 case EntryType.Method:
1956 if ((((MethodInfo)member_entry.Member).Attributes & (MethodAttributes.Assembly | MethodAttributes.Public)) == MethodAttributes.Assembly)
1960 case EntryType.Property:
1961 PropertyInfo pi = (PropertyInfo)member_entry.Member;
1962 if (pi.GetSetMethod () == null && pi.GetGetMethod () == null)
1966 case EntryType.Event:
1967 EventInfo ei = (EventInfo)member_entry.Member;
1968 MethodInfo mi = ei.GetAddMethod ();
1969 if ((mi.Attributes & (MethodAttributes.Assembly | MethodAttributes.Public)) == MethodAttributes.Assembly)
1973 string lcase = ((string)entry.Key).ToLower (System.Globalization.CultureInfo.InvariantCulture);
1974 locase_table [lcase] = member_entry.Member;
1978 return locase_table;
1981 public Hashtable Members {
1988 /// Cls compliance check whether methods or constructors parameters differing only in ref or out, or in array rank
1990 public void VerifyClsParameterConflict (ArrayList al, MethodCore method, MemberInfo this_builder)
1992 EntryType tested_type = (method is Constructor ? EntryType.Constructor : EntryType.Method) | EntryType.Public;
1994 for (int i = 0; i < al.Count; ++i) {
1995 MemberCache.CacheEntry entry = (MemberCache.CacheEntry) al [i];
1998 if (entry.Member == this_builder)
2001 if ((entry.EntryType & tested_type) != tested_type)
2004 MethodBase method_to_compare = (MethodBase)entry.Member;
2005 if (AttributeTester.AreOverloadedMethodParamsClsCompliant (method.ParameterTypes, TypeManager.GetArgumentTypes (method_to_compare)))
2008 IMethodData md = TypeManager.GetMethod (method_to_compare);
2010 // TODO: now we are ignoring CLSCompliance(false) on method from other assembly which is buggy.
2011 // However it is exactly what csc does.
2012 if (md != null && !md.IsClsCompliaceRequired (method.Parent))
2015 Report.SymbolRelatedToPreviousError (entry.Member);
2016 Report.Error (3006, method.Location, "Overloaded method '{0}' differing only in ref or out, or in array rank, is not CLS-compliant", method.GetSignatureForError ());