* codegen.cs (IResolveContent.GenericDeclContainer): Copy from gmcs.
[mono.git] / mcs / gmcs / decl.cs
index edec23320a23685eabc4c3874d8d3780fef137f9..7ec2b071653b160d5d7f980d829d26c8e76866f5 100644 (file)
@@ -27,58 +27,72 @@ namespace Mono.CSharp {
                public readonly TypeArguments TypeArguments;
 
                public readonly MemberName Left;
+               public readonly Location Location;
 
                public static readonly MemberName Null = new MemberName ("");
 
-               public MemberName (string name)
+               bool is_double_colon;
+
+               private MemberName (MemberName left, string name, bool is_double_colon,
+                                   Location loc)
                {
                        this.Name = name;
+                       this.Location = loc;
+                       this.is_double_colon = is_double_colon;
+                       this.Left = left;
                }
 
-               public MemberName (string name, TypeArguments args)
-                       : this (name)
+               private MemberName (MemberName left, string name, bool is_double_colon,
+                                   TypeArguments args, Location loc)
+                       : this (left, name, is_double_colon, loc)
                {
                        this.TypeArguments = args;
                }
 
+               public MemberName (string name)
+                       : this (name, Location.Null)
+               { }
+
+               public MemberName (string name, Location loc)
+                       : this (null, name, false, loc)
+               { }
+
+               public MemberName (string name, TypeArguments args, Location loc)
+                       : this (null, name, false, args, loc)
+               { }
+
                public MemberName (MemberName left, string name)
-                       : this (left, name, null)
-               {
-               }
+                       : this (left, name, left != null ? left.Location : Location.Null)
+               { }
 
-               public MemberName (MemberName left, string name, TypeArguments args)
-                       : this (name, args)
-               {
-                       this.Left = left;
-               }
+               public MemberName (MemberName left, string name, Location loc)
+                       : this (left, name, false, loc)
+               { }
+
+               public MemberName (MemberName left, string name, TypeArguments args, Location loc)
+                       : this (left, name, false, args, loc)
+               { }
 
-               public MemberName (MemberName left, MemberName right)
-                       : this (left, right.Name, right.TypeArguments)
-               {
-                       Name = right.Name;
-                       Left = (right.Left == null) ? left : new MemberName (left, right.Left);
-                       TypeArguments = right.TypeArguments;
-               }
 
-               static readonly char [] dot_array = { '.' };
+               public MemberName (string alias, string name, Location loc)
+                       : this (new MemberName (alias, loc), name, true, loc)
+               { }
 
-               public static MemberName FromDotted (string name)
+               public MemberName (MemberName left, MemberName right)
+                       : this (left, right, right.Location)
+               { }
+
+               public MemberName (MemberName left, MemberName right, Location loc)
+                       : this (null, right.Name, false, right.TypeArguments, loc)
                {
-                       string [] elements = name.Split (dot_array);
-                       int count = elements.Length;
-                       int i = 0;
-                       MemberName n = new MemberName (elements [i++]);
-                       while (i < count)
-                               n = new MemberName (n, elements [i++]);
-                       return n;
+                       if (right.is_double_colon)
+                               throw new InternalErrorException ("Cannot append double_colon member name");
+                       this.Left = (right.Left == null) ? left : new MemberName (left, right.Left);
                }
 
                public string GetName ()
                {
-                       if (Left != null)
-                               return Left.GetName () + "." + Name;
-                       else
-                               return Name;
+                       return GetName (false);
                }
 
                public bool IsGeneric {
@@ -95,102 +109,52 @@ namespace Mono.CSharp {
                public string GetName (bool is_generic)
                {
                        string name = is_generic ? Basename : Name;
+                       string connect = is_double_colon ? "::" : ".";
                        if (Left != null)
-                               return Left.GetName (is_generic) + "." + name;
+                               return Left.GetName (is_generic) + connect + name;
                        else
                                return name;
                }
 
-               public int CountTypeArguments {
-                       get {
-                               if (TypeArguments == null)
-                                       return 0;
-                               else
-                                       return TypeArguments.Count;
-                       }
-               }
-
-               public string MethodName {
-                       get {
-                               if (Left != null)
-                                       return Left.FullName + "." + Name;
-                               else
-                                       return Name;
-                       }
-               }
-
-               public static string MakeName (string name, TypeArguments args)
-               {
-                       if (args == null)
-                               return name;
-                       else
-                               return name + "`" + args.Count;
-               }
-
-               public static string MakeName (string name, int count)
-               {
-                       return name + "`" + count;
-               }
-
                public string GetTypeName ()
                {
+                       string connect = is_double_colon ? "::" : ".";
                        if (Left != null)
-                               return Left.GetTypeName () + "." +
-                                       MakeName (Name, TypeArguments);
+                               return Left.GetTypeName () + connect + MakeName (Name, TypeArguments);
                        else
                                return MakeName (Name, TypeArguments);
                }
 
-               protected bool IsUnbound {
-                       get {
-                               if ((Left != null) && Left.IsUnbound)
-                                       return true;
-                               else if (TypeArguments == null)
-                                       return false;
-                               else
-                                       return TypeArguments.IsUnbound;
-                       }
-               }
-
-               protected bool CheckUnbound (Location loc)
-               {
-                       if ((Left != null) && !Left.CheckUnbound (loc))
-                               return false;
-                       if ((TypeArguments != null) && !TypeArguments.IsUnbound) {
-                               Report.Error (1031, loc, "Type expected");
-                               return false;
-                       }
-
-                       return true;
-               }
-
-               public Expression GetTypeExpression (Location loc)
+               public Expression GetTypeExpression ()
                {
                        if (IsUnbound) {
-                               if (!CheckUnbound (loc))
+                               if (!CheckUnbound (Location))
                                        return null;
 
-                               return new UnboundTypeExpression (GetTypeName ());
+                               return new UnboundTypeExpression (this, Location);
                        }
 
-                       if (Left != null) {
-                               Expression lexpr = Left.GetTypeExpression (loc);
-
-                               return new MemberAccess (lexpr, Name, TypeArguments, loc);
-                       } else {
+                       if (Left == null) {
                                if (TypeArguments != null)
-                                       return new SimpleName (Basename, TypeArguments, loc);
+                                       return new SimpleName (Basename, TypeArguments, Location);
                                else
-                                       return new SimpleName (Name, loc);
+                                       return new SimpleName (Name, Location);
+                       }
+
+                       if (is_double_colon) {
+                               if (Left.Left != null)
+                                       throw new InternalErrorException ("The left side of a :: should be an identifier");
+                               return new QualifiedAliasMember (Left.Name, Name, Location);
                        }
+
+                       Expression lexpr = Left.GetTypeExpression ();
+                       return new MemberAccess (lexpr, Name, TypeArguments, Location);
                }
 
                public MemberName Clone ()
                {
-                       if (Left != null)
-                               return new MemberName (Left.Clone (), Name, TypeArguments);
-                       else
-                               return new MemberName (Name, TypeArguments);
+                       MemberName left_clone = Left == null ? null : Left.Clone ();
+                       return new MemberName (left_clone, Name, is_double_colon, TypeArguments, Location);
                }
 
                public string Basename {
@@ -211,10 +175,21 @@ namespace Mono.CSharp {
                        }
                }
 
+               public string MethodName {
+                       get {
+                               string connect = is_double_colon ? "::" : ".";
+                               if (Left != null)
+                                       return Left.FullName + connect + Name;
+                               else
+                                       return Name;
+                       }
+               }
+
                public override string ToString ()
                {
+                       string connect = is_double_colon ? "::" : ".";
                        if (Left != null)
-                               return Left.FullName + "." + FullName;
+                               return Left.FullName + connect + FullName;
                        else
                                return FullName;
                }
@@ -230,6 +205,8 @@ namespace Mono.CSharp {
                                return true;
                        if (other == null || Name != other.Name)
                                return false;
+                       if (is_double_colon != other.is_double_colon)
+                               return false;
 
                        if ((TypeArguments != null) &&
                            (other.TypeArguments == null || TypeArguments.Count != other.TypeArguments.Count))
@@ -249,19 +226,66 @@ namespace Mono.CSharp {
                        int hash = Name.GetHashCode ();
                        for (MemberName n = Left; n != null; n = n.Left)
                                hash ^= n.Name.GetHashCode ();
+                       if (is_double_colon)
+                               hash ^= 0xbadc01d;
 
                        if (TypeArguments != null)
                                hash ^= TypeArguments.Count << 5;
 
                        return hash & 0x7FFFFFFF;
                }
+
+               public int CountTypeArguments {
+                       get {
+                               if (TypeArguments == null)
+                                       return 0;
+                               else
+                                       return TypeArguments.Count;
+                       }
+               }
+
+               public static string MakeName (string name, TypeArguments args)
+               {
+                       if (args == null)
+                               return name;
+                       else
+                               return name + "`" + args.Count;
+               }
+
+               public static string MakeName (string name, int count)
+               {
+                       return name + "`" + count;
+               }
+
+               protected bool IsUnbound {
+                       get {
+                               if ((Left != null) && Left.IsUnbound)
+                                       return true;
+                               else if (TypeArguments == null)
+                                       return false;
+                               else
+                                       return TypeArguments.IsUnbound;
+                       }
+               }
+
+               protected bool CheckUnbound (Location loc)
+               {
+                       if ((Left != null) && !Left.CheckUnbound (loc))
+                               return false;
+                       if ((TypeArguments != null) && !TypeArguments.IsUnbound) {
+                               Report.Error (1031, loc, "Type expected");
+                               return false;
+                       }
+
+                       return true;
+               }
        }
 
        /// <summary>
        ///   Base representation for members.  This is used to keep track
        ///   of Name, Location and Modifier flags, and handling Attributes.
        /// </summary>
-       public abstract class MemberCore : Attributable {
+       public abstract class MemberCore : Attributable, IResolveContext {
                /// <summary>
                ///   Public name
                /// </summary>
@@ -286,17 +310,19 @@ namespace Mono.CSharp {
                /// </summary>
                public int ModFlags;
 
-               public /*readonly*/ TypeContainer Parent;
+               public readonly DeclSpace Parent;
 
                /// <summary>
                ///   Location where this declaration happens
                /// </summary>
-               public readonly Location Location;
+               public Location Location {
+                       get { return member_name.Location; }
+               }
 
                /// <summary>
                ///   XML documentation comment
                /// </summary>
-               public string DocComment;
+               protected string comment;
 
                /// <summary>
                ///   Represents header string for documentation comment 
@@ -317,24 +343,21 @@ namespace Mono.CSharp {
                        Excluded_Undetected = 1 << 8,           // Conditional attribute has not been detected yet
                        Excluded = 1 << 9,                                      // Method is conditional
                        TestMethodDuplication = 1 << 10,                // Test for duplication must be performed
-                       IsUsed = 1 << 11
+                       IsUsed = 1 << 11,
+                       IsAssigned = 1 << 12,                           // Field is assigned
+                       HasExplicitLayout       = 1 << 13
                }
-  
+
                /// <summary>
                ///   MemberCore flags at first detected then cached
-               /// </summary>
+               /// </summary>
                internal Flags caching_flags;
 
-               public MemberCore (TypeContainer parent, MemberName name, Attributes attrs,
-                                  Location loc)
+               public MemberCore (DeclSpace parent, MemberName name, Attributes attrs)
                        : base (attrs)
                {
-                       if (parent is PartialContainer && !(this is PartialContainer))
-                               throw new InternalErrorException ("A PartialContainer cannot be the direct parent of a member");
-
-                       Parent = parent;
+                       this.Parent = parent;
                        member_name = name;
-                       Location = loc;
                        caching_flags = Flags.Obsolete_Undetected | Flags.ClsCompliance_Undetected | Flags.HasCompliantAttribute_Undetected | Flags.Excluded_Undetected;
                }
 
@@ -344,37 +367,26 @@ namespace Mono.CSharp {
                        cached_name = null;
                }
 
-               /// <summary>
-               /// Tests presence of ObsoleteAttribute and report proper error
-               /// </summary>
-               protected void CheckUsageOfObsoleteAttribute (Type type)
-               {
-                       if (type == null)
-                               return;
-
-                       ObsoleteAttribute obsolete_attr = AttributeTester.GetObsoleteAttribute (type);
-                       if (obsolete_attr == null)
-                               return;
+               public abstract bool Define ();
 
-                       AttributeTester.Report_ObsoleteMessage (obsolete_attr, type.FullName, Location);
+               public virtual string DocComment {
+                       get {
+                               return comment;
+                       }
+                       set {
+                               comment = value;
+                       }
                }
 
-               public abstract bool Define ();
-
                // 
                // Returns full member name for error message
                //
                public virtual string GetSignatureForError ()
                {
-                       return Name;
-               }
+                       if (Parent == null || Parent.Parent == null)
+                               return member_name.ToString ();
 
-               /// <summary>
-               /// Use this method when MethodBuilder is null
-               /// </summary>
-               public virtual string GetSignatureForError (TypeContainer tc)
-               {
-                       return Name;
+                       return String.Concat (Parent.GetSignatureForError (), '.', member_name.ToString ());
                }
 
                /// <summary>
@@ -382,26 +394,14 @@ namespace Mono.CSharp {
                /// </summary>
                public virtual void Emit ()
                {
-                       // Hack with Parent == null is for EnumMember
-                       if (Parent == null || (GetObsoleteAttribute (Parent) == null && Parent.GetObsoleteAttribute (Parent) == null))
-                               VerifyObsoleteAttribute ();
-
                        if (!RootContext.VerifyClsCompliance)
                                return;
 
-                       VerifyClsCompliance (Parent);
-               }
-
-               public bool InUnsafe {
-                       get {
-                               return ((ModFlags & Modifiers.UNSAFE) != 0) || Parent.UnsafeContext;
-                       }
+                       VerifyClsCompliance ();
                }
 
                public virtual bool IsUsed {
-                       get {
-                               return (caching_flags & Flags.IsUsed) != 0;
-                       }
+                       get { return (caching_flags & Flags.IsUsed) != 0; }
                }
 
                public void SetMemberIsUsed ()
@@ -409,28 +409,10 @@ namespace Mono.CSharp {
                        caching_flags |= Flags.IsUsed;
                }
 
-               // 
-               // Whehter is it ok to use an unsafe pointer in this type container
-               //
-               public bool UnsafeOK (DeclSpace parent)
-               {
-                       //
-                       // First check if this MemberCore modifier flags has unsafe set
-                       //
-                       if ((ModFlags & Modifiers.UNSAFE) != 0)
-                               return true;
-
-                       if (parent.UnsafeContext)
-                               return true;
-
-                       Expression.UnsafeError (Location);
-                       return false;
-               }
-
                /// <summary>
                /// Returns instance of ObsoleteAttribute for this MemberCore
                /// </summary>
-               public ObsoleteAttribute GetObsoleteAttribute (DeclSpace ds)
+               public virtual ObsoleteAttribute GetObsoleteAttribute ()
                {
                        // ((flags & (Flags.Obsolete_Undetected | Flags.Obsolete)) == 0) is slower, but why ?
                        if ((caching_flags & Flags.Obsolete_Undetected) == 0 && (caching_flags & Flags.Obsolete) == 0) {
@@ -443,11 +425,11 @@ namespace Mono.CSharp {
                                return null;
 
                        Attribute obsolete_attr = OptAttributes.Search (
-                               TypeManager.obsolete_attribute_type, ds.EmitContext);
+                               TypeManager.obsolete_attribute_type);
                        if (obsolete_attr == null)
                                return null;
 
-                       ObsoleteAttribute obsolete = obsolete_attr.GetObsoleteAttribute (ds.EmitContext);
+                       ObsoleteAttribute obsolete = obsolete_attr.GetObsoleteAttribute ();
                        if (obsolete == null)
                                return null;
 
@@ -455,15 +437,31 @@ namespace Mono.CSharp {
                        return obsolete;
                }
 
+               /// <summary>
+               /// Checks for ObsoleteAttribute presence. It's used for testing of all non-types elements
+               /// </summary>
+               public virtual void CheckObsoleteness (Location loc)
+               {
+                       if (Parent != null)
+                               Parent.CheckObsoleteness (loc);
+
+                       ObsoleteAttribute oa = GetObsoleteAttribute ();
+                       if (oa == null) {
+                               return;
+                       }
+
+                       AttributeTester.Report_ObsoleteMessage (oa, GetSignatureForError (), loc);
+               }
+
                /// <summary>
                /// Analyze whether CLS-Compliant verification must be execute for this MemberCore.
                /// </summary>
-               public override bool IsClsComplianceRequired (DeclSpace container)
+               public override bool IsClsComplianceRequired ()
                {
                        if ((caching_flags & Flags.ClsCompliance_Undetected) == 0)
                                return (caching_flags & Flags.ClsCompliant) != 0;
 
-                       if (GetClsCompliantAttributeValue (container) && IsExposedFromAssembly (container)) {
+                       if (GetClsCompliantAttributeValue () && IsExposedFromAssembly ()) {
                                caching_flags &= ~Flags.ClsCompliance_Undetected;
                                caching_flags |= Flags.ClsCompliant;
                                return true;
@@ -476,12 +474,12 @@ namespace Mono.CSharp {
                /// <summary>
                /// Returns true when MemberCore is exposed from assembly.
                /// </summary>
-               public bool IsExposedFromAssembly (DeclSpace ds)
+               public bool IsExposedFromAssembly ()
                {
                        if ((ModFlags & (Modifiers.PUBLIC | Modifiers.PROTECTED)) == 0)
                                return false;
                        
-                       DeclSpace parentContainer = ds;
+                       DeclSpace parentContainer = Parent;
                        while (parentContainer != null && parentContainer.ModFlags != 0) {
                                if ((parentContainer.ModFlags & (Modifiers.PUBLIC | Modifiers.PROTECTED)) == 0)
                                        return false;
@@ -491,19 +489,33 @@ namespace Mono.CSharp {
                }
 
                /// <summary>
-               /// Resolve CLSCompliantAttribute value or gets cached value.
+               /// Goes through class hierarchy and gets value of first found CLSCompliantAttribute.
+               /// If no is attribute exists then assembly CLSCompliantAttribute is returned.
                /// </summary>
-               bool GetClsCompliantAttributeValue (DeclSpace ds)
+               public virtual bool GetClsCompliantAttributeValue ()
                {
+                       if ((caching_flags & Flags.HasCompliantAttribute_Undetected) == 0)
+                               return (caching_flags & Flags.ClsCompliantAttributeTrue) != 0;
+
+                       caching_flags &= ~Flags.HasCompliantAttribute_Undetected;
+
                        if (OptAttributes != null) {
                                Attribute cls_attribute = OptAttributes.Search (
-                                       TypeManager.cls_compliant_attribute_type, ds.EmitContext);
+                                       TypeManager.cls_compliant_attribute_type);
                                if (cls_attribute != null) {
                                        caching_flags |= Flags.HasClsCompliantAttribute;
-                                       return cls_attribute.GetClsCompliantAttributeValue (ds.EmitContext);
+                                       bool value = cls_attribute.GetClsCompliantAttributeValue ();
+                                       if (value)
+                                               caching_flags |= Flags.ClsCompliantAttributeTrue;
+                                       return value;
                                }
                        }
-                       return ds.GetClsCompliantAttributeValue ();
+
+                       if (Parent.GetClsCompliantAttributeValue ()) {
+                               caching_flags |= Flags.ClsCompliantAttributeTrue;
+                               return true;
+                       }
+                       return false;
                }
 
                /// <summary>
@@ -529,39 +541,38 @@ namespace Mono.CSharp {
                /// CLS-Compliant which means that CLS-Compliant tests are not necessary. A descendants override it
                /// and add their extra verifications.
                /// </summary>
-               protected virtual bool VerifyClsCompliance (DeclSpace ds)
+               protected virtual bool VerifyClsCompliance ()
                {
-                       if (!IsClsComplianceRequired (ds)) {
+                       if (!IsClsComplianceRequired ()) {
                                if (HasClsCompliantAttribute && RootContext.WarningLevel >= 2) {
-                                       if (!IsExposedFromAssembly (ds))
-                                               Report.Warning (3019, Location, "CLS compliance checking will not be performed on '{0}' because it is private or internal", GetSignatureForError ());
+                                       if (!IsExposedFromAssembly ())
+                                               Report.Warning (3019, 2, Location, "CLS compliance checking will not be performed on `{0}' because it is not visible from outside this assembly", GetSignatureForError ());
                                        if (!CodeGen.Assembly.IsClsCompliant)
-                                               Report.Warning (3021, Location, "'{0}' does not need a CLSCompliant attribute because the assembly does not have a CLSCompliant attribute", GetSignatureForError ());
+                                               Report.Warning (3021, 2, Location, "`{0}' does not need a CLSCompliant attribute because the assembly is not marked as CLS-compliant", GetSignatureForError ());
                                }
                                return false;
                        }
 
                        if (!CodeGen.Assembly.IsClsCompliant) {
                                if (HasClsCompliantAttribute) {
-                                       Report.Error (3014, Location, "'{0}' cannot be marked as CLS-compliant because the assembly does not have a CLSCompliant attribute", GetSignatureForError ());
+                                       Report.Error (3014, Location,
+                                               "`{0}' cannot be marked as CLS-compliant because the assembly is not marked as CLS-compliant",
+                                               GetSignatureForError ());
                                }
                                return false;
                        }
 
-                       int index = Name.LastIndexOf ('.');
-                       if (Name [index > 0 ? index + 1 : 0] == '_') {
-                               Report.Error (3008, Location, "Identifier '{0}' is not CLS-compliant", GetSignatureForError () );
+                       if (member_name.Name [0] == '_') {
+                               Report.Error (3008, Location, "Identifier `{0}' is not CLS-compliant", GetSignatureForError () );
                        }
                        return true;
                }
 
-               protected abstract void VerifyObsoleteAttribute ();
-
                //
                // Raised (and passed an XmlElement that contains the comment)
                // when GenerateDocComment is writing documentation expectedly.
                //
-               internal virtual void OnGenerateDocComment (DeclSpace ds, XmlElement intermediateNode)
+               internal virtual void OnGenerateDocComment (XmlElement intermediateNode)
                {
                }
 
@@ -585,6 +596,40 @@ namespace Mono.CSharp {
                {
                        DocUtil.GenerateDocComment (this, ds);
                }
+
+               public override IResolveContext ResolveContext {
+                       get { return this; }
+               }
+
+               #region IResolveContext Members
+
+               public DeclSpace DeclContainer {
+                       get { return Parent; }
+               }
+
+               public virtual DeclSpace GenericDeclContainer {
+                       get { return DeclContainer; }
+               }
+
+               public bool IsInObsoleteScope {
+                       get {
+                               if (GetObsoleteAttribute () != null)
+                                       return true;
+
+                               return Parent == null ? false : Parent.IsInObsoleteScope;
+                       }
+               }
+
+               public bool IsInUnsafeScope {
+                       get {
+                               if ((ModFlags & Modifiers.UNSAFE) != 0)
+                                       return true;
+
+                               return Parent == null ? false : Parent.IsInUnsafeScope;
+                       }
+               }
+
+               #endregion
        }
 
        /// <summary>
@@ -595,7 +640,7 @@ namespace Mono.CSharp {
        ///   provides the common foundation for managing those name
        ///   spaces.
        /// </remarks>
-       public abstract class DeclSpace : MemberCore, IAlias {
+       public abstract class DeclSpace : MemberCore {
                /// <summary>
                ///   This points to the actual definition that is being
                ///   created with System.Reflection.Emit
@@ -621,17 +666,12 @@ namespace Mono.CSharp {
                
                protected Hashtable defined_names;
 
+               public TypeContainer PartialContainer;
+
                readonly bool is_generic;
                readonly int count_type_params;
                readonly int count_current_type_params;
 
-               // The emit context for toplevel objects.
-               protected EmitContext ec;
-               
-               public EmitContext EmitContext {
-                       get { return ec; }
-               }
-
                //
                // Whether we are Generic
                //
@@ -648,13 +688,14 @@ namespace Mono.CSharp {
 
                static string[] attribute_targets = new string [] { "type" };
 
-               public DeclSpace (NamespaceEntry ns, TypeContainer parent, MemberName name,
-                                 Attributes attrs, Location l)
-                       : base (parent, name, attrs, l)
+               public DeclSpace (NamespaceEntry ns, DeclSpace parent, MemberName name,
+                                 Attributes attrs)
+                       : base (parent, name, attrs)
                {
                        NamespaceEntry = ns;
                        Basename = name.Basename;
                        defined_names = new Hashtable ();
+                       PartialContainer = null;
                        if (name.TypeArguments != null) {
                                is_generic = true;
                                count_type_params = count_current_type_params = name.TypeArguments.Count;
@@ -663,23 +704,15 @@ namespace Mono.CSharp {
                                count_type_params += parent.count_type_params;
                }
 
+               public override DeclSpace GenericDeclContainer {
+                       get { return this; }
+               }
+
                /// <summary>
                /// Adds the member to defined_names table. It tests for duplications and enclosing name conflicts
                /// </summary>
-               protected bool AddToContainer (MemberCore symbol, string name)
-               {
-                       if (name == Basename && !(this is Interface) && !(this is Enum)) {
-                               if (symbol is TypeParameter)
-                                       Report.Error (694, "Type parameter `{0}' has same name as " +
-                                                     "containing type or method", name);
-                               else {
-                                       Report.SymbolRelatedToPreviousError (this);
-                                       Report.Error (542, "'{0}': member names cannot be the same as their " +
-                                                     "enclosing type", symbol.Location, symbol.GetSignatureForError ());
-                               }
-                               return false;
-                       }
-
+               protected virtual bool AddToContainer (MemberCore symbol, string name)
+               {
                        MemberCore mc = (MemberCore) defined_names [name];
 
                        if (mc == null) {
@@ -690,21 +723,26 @@ namespace Mono.CSharp {
                        if (symbol.MarkForDuplicationCheck () && mc.MarkForDuplicationCheck ())
                                return true;
 
-                       if (symbol is TypeParameter)
-                               Report.Error (692, symbol.Location, "Duplicate type parameter `{0}'", name);
-                       else {
-                               Report.SymbolRelatedToPreviousError (mc);
+                       Report.SymbolRelatedToPreviousError (mc);
+                       if ((mc.ModFlags & Modifiers.PARTIAL) != 0 && (symbol is ClassOrStruct || symbol is Interface)) {
+                               Error_MissingPartialModifier (symbol);
+                               return false;
+                       }
+
+                       if (this is RootTypes) {
+                               Report.Error (101, symbol.Location, 
+                                       "The namespace `{0}' already contains a definition for `{1}'",
+                                       ((DeclSpace)symbol).NamespaceEntry.GetSignatureForError (), symbol.MemberName.Name);
+                       } else if (symbol is TypeParameter) {
+                               Report.Error (692, symbol.Location,
+                                             "Duplicate type parameter `{0}'", name);
+                       } else {
                                Report.Error (102, symbol.Location,
-                                             "The type '{0}' already contains a definition for '{1}'",
-                                             GetSignatureForError (), name);
+                                             "The type `{0}' already contains a definition for `{1}'",
+                                             GetSignatureForError (), symbol.MemberName.Name);
                        }
-                       return false;
-               }
 
-               public void RecordDecl ()
-               {
-                       if ((NamespaceEntry != null) && (Parent == RootContext.Tree.Types))
-                               NamespaceEntry.DefineName (MemberName.Basename, this);
+                       return false;
                }
 
                /// <summary>
@@ -723,13 +761,7 @@ namespace Mono.CSharp {
                // why there is a non-obvious test down here.
                //
                public bool IsTopLevel {
-                       get {
-                               if (Parent != null){
-                                       if (Parent.Parent == null)
-                                               return true;
-                               }
-                               return false;
-                       }
+                       get { return (Parent != null && Parent.Parent == null); }
                }
 
                public virtual void CloseType ()
@@ -754,9 +786,7 @@ namespace Mono.CSharp {
                }
 
                protected virtual TypeAttributes TypeAttr {
-                       get {
-                               return CodeGen.Module.DefaultCharSetType;
-                       }
+                       get { return CodeGen.Module.DefaultCharSetType; }
                }
 
                /// <remarks>
@@ -768,53 +798,29 @@ namespace Mono.CSharp {
                ///   Define all members, but don't apply any attributes or do anything which may
                ///   access not-yet-defined classes.  This method also creates the MemberCache.
                /// </summary>
-               public abstract bool DefineMembers (TypeContainer parent);
-
-               //
-               // Whether this is an `unsafe context'
-               //
-               public bool UnsafeContext {
-                       get {
-                               if ((ModFlags & Modifiers.UNSAFE) != 0)
-                                       return true;
-                               if (Parent != null)
-                                       return Parent.UnsafeContext;
+               public virtual bool DefineMembers ()
+               {
+                       if (((ModFlags & Modifiers.NEW) != 0) && IsTopLevel) {
+                               Report.Error (1530, Location, "Keyword `new' is not allowed on namespace elements");
                                return false;
                        }
+                       return true;
                }
 
-               EmitContext type_resolve_ec;
-               protected EmitContext TypeResolveEmitContext {
-                       get {
-                               if (type_resolve_ec == null) {
-                                       // FIXME: I think this should really be one of:
-                                       //
-                                       // a. type_resolve_ec = Parent.EmitContext;
-                                       // b. type_resolve_ec = new EmitContext (Parent, Parent, loc, null, null, ModFlags, false);
-                                       //
-                                       // However, if Parent == RootContext.Tree.Types, its NamespaceEntry will be null.
-                                       //
-                                       type_resolve_ec = new EmitContext (Parent, this, Location.Null, null, null, ModFlags, false);
-                               }
-                               return type_resolve_ec;
-                       }
+               protected void Error_MissingPartialModifier (MemberCore type)
+               {
+                       Report.Error (260, type.Location,
+                               "Missing partial modifier on declaration of type `{0}'. Another partial declaration of this type exists",
+                               type.GetSignatureForError ());
                }
 
-               // <summary>
-               //    Resolves the expression `e' for a type, and will recursively define
-               //    types.  This should only be used for resolving base types.
-               // </summary>
-               protected TypeExpr ResolveBaseTypeExpr (Expression e, bool silent, Location loc)
+               public override string GetSignatureForError ()
                {
-                       TypeResolveEmitContext.loc = loc;
-                       TypeResolveEmitContext.ContainerType = TypeBuilder;
-                       TypeResolveEmitContext.ResolvingTypeTree = true;
-                       if (this is GenericMethod)
-                               TypeResolveEmitContext.ContainerType = Parent.TypeBuilder;
-                       else
-                               TypeResolveEmitContext.ContainerType = TypeBuilder;
-
-                       return e.ResolveAsTypeTerminal (TypeResolveEmitContext);
+                       if (IsGeneric) {
+                               return SimpleName.RemoveGenericArity (Name) + TypeParameter.GetSignatureForError (CurrentTypeParameters);
+                       }
+                       // Parent.GetSignatureForError
+                       return Name;
                }
                
                public bool CheckAccessLevel (Type check_type) 
@@ -825,9 +831,7 @@ namespace Mono.CSharp {
                        else
                                tb = TypeBuilder;
 
-                       if (check_type.IsGenericInstance)
-                               check_type = check_type.GetGenericTypeDefinition ();
-
+                       check_type = TypeManager.DropGenericTypeArguments (check_type);
                        if (check_type == tb)
                                return true;
 
@@ -864,7 +868,8 @@ namespace Mono.CSharp {
                                //
                                // This test should probably use the declaringtype.
                                //
-                               return check_type.Assembly == TypeBuilder.Assembly;
+                               return check_type.Assembly == TypeBuilder.Assembly ||
+                                       TypeManager.IsFriendAssembly (check_type.Assembly);
 
                        case TypeAttributes.NestedPublic:
                                return true;
@@ -879,15 +884,18 @@ namespace Mono.CSharp {
                                return FamilyAccessible (tb, check_type);
 
                        case TypeAttributes.NestedFamANDAssem:
-                               return (check_type.Assembly == tb.Assembly) &&
+                               return ((check_type.Assembly == tb.Assembly) || 
+                                               TypeManager.IsFriendAssembly (check_type.Assembly)) && 
                                        FamilyAccessible (tb, check_type);
 
                        case TypeAttributes.NestedFamORAssem:
                                return (check_type.Assembly == tb.Assembly) ||
-                                       FamilyAccessible (tb, check_type);
+                                       FamilyAccessible (tb, check_type) ||
+                                       TypeManager.IsFriendAssembly (check_type.Assembly);
 
                        case TypeAttributes.NestedAssembly:
-                               return check_type.Assembly == tb.Assembly;
+                               return check_type.Assembly == tb.Assembly ||
+                                       TypeManager.IsFriendAssembly (check_type.Assembly);
                        }
 
                        Console.WriteLine ("HERE: " + check_attr);
@@ -1009,22 +1017,6 @@ namespace Mono.CSharp {
                        return ~ (~ mAccess | pAccess) == 0;
                }
 
-               public static void Error_AmbiguousTypeReference (Location loc, string name, string t1, string t2)
-               {
-                       Report.Error (104, loc,
-                                     "`{0}' is an ambiguous reference ({1} or {2})",
-                                     name, t1, t2);
-               }
-
-               //
-               // Return the nested type with name @name.  Ensures that the nested type
-               // is defined if necessary.  Do _not_ use this when you have a MemberCache handy.
-               //
-               public virtual Type FindNestedType (string name)
-               {
-                       return null;
-               }
-
                private Type LookupNestedTypeInHierarchy (string name)
                {
                        // if the member cache has been created, lets use it.
@@ -1037,11 +1029,13 @@ namespace Mono.CSharp {
                        for (Type current_type = TypeBuilder;
                             current_type != null && current_type != TypeManager.object_type;
                             current_type = current_type.BaseType) {
+                               current_type = TypeManager.DropGenericTypeArguments (current_type);
                                if (current_type is TypeBuilder) {
-                                       DeclSpace decl = this;
-                                       if (current_type != TypeBuilder)
-                                               decl = TypeManager.LookupDeclSpace (current_type);
-                                       t = decl.FindNestedType (name);
+                                       TypeContainer tc = current_type == TypeBuilder
+                                               ? PartialContainer
+                                               : TypeManager.LookupTypeContainer (current_type);
+                                       if (tc != null)
+                                               t = tc.FindNestedType (name);
                                } else {
                                        t = TypeManager.GetNestedType (current_type, name);
                                }
@@ -1054,8 +1048,7 @@ namespace Mono.CSharp {
                }
 
                //
-               // Public function used to locate types, this can only
-               // be used after the ResolveTree function has been invoked.
+               // Public function used to locate types.
                //
                // Set 'ignore_cs0104' to true if you want to ignore cs0104 errors.
                //
@@ -1063,9 +1056,6 @@ namespace Mono.CSharp {
                //
                public FullNamedExpression LookupType (string name, Location loc, bool ignore_cs0104)
                {
-                       if (this is PartialContainer)
-                               throw new InternalErrorException ("Should not get here");
-
                        if (Cache.Contains (name))
                                return (FullNamedExpression) Cache [name];
 
@@ -1073,7 +1063,7 @@ namespace Mono.CSharp {
                        Type t = LookupNestedTypeInHierarchy (name);
                        if (t != null)
                                e = new TypeExpression (t, Location.Null);
-                       else if (Parent != null && Parent != RootContext.Tree.Types)
+                       else if (Parent != null)
                                e = Parent.LookupType (name, loc, ignore_cs0104);
                        else
                                e = NamespaceEntry.LookupNamespaceOrType (this, name, loc, ignore_cs0104);
@@ -1107,44 +1097,6 @@ namespace Mono.CSharp {
                        TypeBuilder.SetCustomAttribute (cb);
                }
 
-               /// <summary>
-               /// Goes through class hierarchy and get value of first CLSCompliantAttribute that found.
-               /// If no is attribute exists then return assembly CLSCompliantAttribute.
-               /// </summary>
-               public bool GetClsCompliantAttributeValue ()
-               {
-                       if ((caching_flags & Flags.HasCompliantAttribute_Undetected) == 0)
-                               return (caching_flags & Flags.ClsCompliantAttributeTrue) != 0;
-
-                       caching_flags &= ~Flags.HasCompliantAttribute_Undetected;
-
-                       if (OptAttributes != null) {
-                               Attribute cls_attribute = OptAttributes.Search (TypeManager.cls_compliant_attribute_type, ec);
-                               if (cls_attribute != null) {
-                                       caching_flags |= Flags.HasClsCompliantAttribute;
-                                       if (cls_attribute.GetClsCompliantAttributeValue (ec)) {
-                                               caching_flags |= Flags.ClsCompliantAttributeTrue;
-                                               return true;
-                                       }
-                                       return false;
-                               }
-                       }
-
-                       if (Parent == null) {
-                               if (CodeGen.Assembly.IsClsCompliant) {
-                                       caching_flags |= Flags.ClsCompliantAttributeTrue;
-                                       return true;
-                               }
-                               return false;
-                       }
-
-                       if (Parent.GetClsCompliantAttributeValue ()) {
-                               caching_flags |= Flags.ClsCompliantAttributeTrue;
-                               return true;
-                       }
-                       return false;
-               }
-
                //
                // Extensions for generics
                //
@@ -1172,12 +1124,11 @@ namespace Mono.CSharp {
                                if (param.Name != name)
                                        continue;
 
-                               if (RootContext.WarningLevel >= 3)
-                                       Report.Warning (
-                                               693, Location,
-                                               "Type parameter `{0}' has same name " +
-                                               "as type parameter from outer type `{1}'",
-                                               name, Parent.GetInstantiationName ());
+                               Report.SymbolRelatedToPreviousError (Parent);
+                               // TODO: Location is wrong (parent instead of child)
+                               Report.Warning (693, 3, Location,
+                                       "Type parameter `{0}' has the same name as the type parameter from outer type `{1}'",
+                                       name, Parent.GetSignatureForError ());
 
                                return false;
                        }
@@ -1222,35 +1173,53 @@ namespace Mono.CSharp {
                        if (!is_generic) {
                                if (constraints_list != null) {
                                        Report.Error (
-                                               80, Location, "Contraints are not allowed " +
+                                               80, Location, "Constraints are not allowed " +
                                                "on non-generic declarations");
                                }
 
                                return;
                        }
 
-                       string[] names = MemberName.TypeArguments.GetDeclarations ();
+                       TypeParameterName[] names = MemberName.TypeArguments.GetDeclarations ();
                        type_params = new TypeParameter [names.Length];
 
                        //
                        // Register all the names
                        //
                        for (int i = 0; i < type_params.Length; i++) {
-                               string name = names [i];
+                               TypeParameterName name = names [i];
 
                                Constraints constraints = null;
                                if (constraints_list != null) {
-                                       foreach (Constraints constraint in constraints_list) {
-                                               if (constraint.TypeParameter == name) {
-                                                       constraints = constraint;
+                                       int total = constraints_list.Count;
+                                       for (int ii = 0; ii < total; ++ii) {
+                                               Constraints constraints_at = (Constraints)constraints_list[ii];
+                                               // TODO: it is used by iterators only
+                                               if (constraints_at == null) {
+                                                       constraints_list.RemoveAt (ii);
+                                                       --total;
+                                                       continue;
+                                               }
+                                               if (constraints_at.TypeParameter == name.Name) {
+                                                       constraints = constraints_at;
+                                                       constraints_list.RemoveAt(ii);
                                                        break;
                                                }
                                        }
                                }
 
-                               type_params [i] = new TypeParameter (Parent, name, constraints, Location);
+                               type_params [i] = new TypeParameter (
+                                       Parent, this, name.Name, constraints, name.OptAttributes,
+                                       Location);
 
-                               AddToContainer (type_params [i], name);
+                               AddToContainer (type_params [i], name.Name);
+                       }
+
+                       if (constraints_list != null && constraints_list.Count > 0) {
+                               foreach (Constraints constraint in constraints_list) {
+                                       Report.Error(699, constraint.Location, "`{0}': A constraint references nonexistent type parameter `{1}'", 
+                                               GetSignatureForError (), constraint.TypeParameter);
+                               }
                        }
                }
 
@@ -1265,7 +1234,7 @@ namespace Mono.CSharp {
                        }
                }
 
-               protected TypeParameter[] CurrentTypeParameters {
+               public TypeParameter[] CurrentTypeParameters {
                        get {
                                if (!IsGeneric)
                                        throw new InvalidOperationException ();
@@ -1293,11 +1262,15 @@ namespace Mono.CSharp {
                        if (!IsGeneric)
                                return null;
 
-                       foreach (TypeParameter type_param in CurrentTypeParameters) {
-                               if (type_param.Name != name)
-                                       continue;
+                       TypeParameter [] current_params;
+                       if (this is TypeContainer)
+                               current_params = PartialContainer.CurrentTypeParameters;
+                       else
+                               current_params = CurrentTypeParameters;
 
-                               return new TypeParameterExpr (type_param, loc);
+                       foreach (TypeParameter type_param in current_params) {
+                               if (type_param.Name == name)
+                                       return new TypeParameterExpr (type_param, loc);
                        }
 
                        if (Parent != null)
@@ -1306,29 +1279,35 @@ namespace Mono.CSharp {
                        return null;
                }
 
-               bool IAlias.IsType {
-                       get { return true; }
-               }
-
-               string IAlias.Name {
-                       get { return Name; }
+               public override string[] ValidAttributeTargets {
+                       get { return attribute_targets; }
                }
 
-               TypeExpr IAlias.ResolveAsType (EmitContext ec)
+               protected override bool VerifyClsCompliance ()
                {
-                       if (TypeBuilder == null)
-                               throw new InvalidOperationException ();
+                       if (!base.VerifyClsCompliance ()) {
+                               return false;
+                       }
 
-                       if (CurrentType != null)
-                               return new TypeExpression (CurrentType, Location);
-                       else
-                               return new TypeExpression (TypeBuilder, Location);
-               }
+                       IDictionary cache = TypeManager.AllClsTopLevelTypes;
+                       string lcase = Name.ToLower (System.Globalization.CultureInfo.InvariantCulture);
+                       if (!cache.Contains (lcase)) {
+                               cache.Add (lcase, this);
+                               return true;
+                       }
 
-               public override string[] ValidAttributeTargets {
-                       get {
-                               return attribute_targets;
+                       object val = cache [lcase];
+                       if (val == null) {
+                               Type t = AttributeTester.GetImportedIgnoreCaseClsType (lcase);
+                               if (t == null)
+                                       return true;
+                               Report.SymbolRelatedToPreviousError (t);
+                       }
+                       else {
+                               Report.SymbolRelatedToPreviousError ((DeclSpace)val);
                        }
+                       Report.Warning (3005, 1, Location, "Identifier `{0}' differing only in case is not CLS-compliant", GetSignatureForError ());
+                       return true;
                }
        }
 
@@ -1580,8 +1559,8 @@ namespace Mono.CSharp {
                        // method cache with all declared and inherited methods.
                        Type type = container.Type;
                        if (!(type is TypeBuilder) && !type.IsInterface &&
-                           // !(type.IsGenericInstance && (type.GetGenericTypeDefinition () is TypeBuilder)) &&
-                           !type.IsGenericInstance &&
+                           // !(type.IsGenericType && (type.GetGenericTypeDefinition () is TypeBuilder)) &&
+                           !type.IsGenericType &&
                            (Container.BaseCache == null || Container.BaseCache.method_hash != null)) {
                                method_hash = new Hashtable ();
                                AddMethods (type);
@@ -1612,7 +1591,7 @@ namespace Mono.CSharp {
                /// <summary>
                ///   Bootstrap this member cache by doing a deep-copy of our base.
                /// </summary>
-               Hashtable SetupCache (MemberCache base_class)
+               static Hashtable SetupCache (MemberCache base_class)
                {
                        Hashtable hash = new Hashtable ();
 
@@ -1657,8 +1636,8 @@ namespace Mono.CSharp {
                        // We need to call AddMembers() with a single member type at a time
                        // to get the member type part of CacheEntry.EntryType right.
                        if (!container.IsInterface) {
-                       AddMembers (MemberTypes.Constructor, container);
-                       AddMembers (MemberTypes.Field, container);
+                               AddMembers (MemberTypes.Constructor, container);
+                               AddMembers (MemberTypes.Field, container);
                        }
                        AddMembers (MemberTypes.Method, container);
                        AddMembers (MemberTypes.Property, container);
@@ -1857,8 +1836,8 @@ namespace Mono.CSharp {
 
                protected class CacheEntry {
                        public readonly IMemberContainer Container;
-                       public EntryType EntryType;
-                       public MemberInfo Member;
+                       public readonly EntryType EntryType;
+                       public readonly MemberInfo Member;
 
                        public CacheEntry (IMemberContainer container, MemberInfo member,
                                           MemberTypes mt, BindingFlags bf)
@@ -1923,7 +1902,7 @@ namespace Mono.CSharp {
                static MemberInfo [] emptyMemberInfo = new MemberInfo [0];
                
                public MemberInfo [] FindMembers (MemberTypes mt, BindingFlags bf, string name,
-                                              MemberFilter filter, object criteria)
+                                                 MemberFilter filter, object criteria)
                {
                        if (using_global)
                                throw new Exception ();
@@ -1964,6 +1943,7 @@ namespace Mono.CSharp {
 
                        IMemberContainer current = Container;
 
+                       bool do_interface_search = current.IsInterface;
 
                        // `applicable' is a list of all members with the given member name `name'
                        // in the current class and all its base classes.  The list is sorted in
@@ -1979,7 +1959,10 @@ namespace Mono.CSharp {
                                // iteration of this loop if there are no members with the name we're
                                // looking for in the current class).
                                if (entry.Container != current) {
-                                       if (declared_only || DoneSearching (global))
+                                       if (declared_only)
+                                               break;
+
+                                       if (!do_interface_search && DoneSearching (global))
                                                break;
 
                                        current = entry.Container;
@@ -1995,8 +1978,28 @@ namespace Mono.CSharp {
 
                                // Apply the filter to it.
                                if (filter (entry.Member, criteria)) {
-                                       if ((entry.EntryType & EntryType.MaskType) != EntryType.Method)
+                                       if ((entry.EntryType & EntryType.MaskType) != EntryType.Method) {
                                                do_method_search = false;
+                                       }
+                                       
+                                       // Because interfaces support multiple inheritance we have to be sure that
+                                       // base member is from same interface, so only top level member will be returned
+                                       if (do_interface_search && global.Count > 0) {
+                                               bool member_already_exists = false;
+
+                                               foreach (MemberInfo mi in global) {
+                                                       if (mi is MethodBase)
+                                                               continue;
+
+                                                       if (IsInterfaceBaseInterface (TypeManager.GetInterfaces (mi.DeclaringType), entry.Member.DeclaringType)) {
+                                                               member_already_exists = true;
+                                                               break;
+                                                       }
+                                               }
+                                               if (member_already_exists)
+                                                       continue;
+                                       }
+
                                        global.Add (entry.Member);
                                }
                        }
@@ -2018,6 +2021,22 @@ namespace Mono.CSharp {
                        global.CopyTo (copy);
                        return copy;
                }
+
+               /// <summary>
+               /// Returns true if iterface exists in any base interfaces (ifaces)
+               /// </summary>
+               static bool IsInterfaceBaseInterface (Type[] ifaces, Type ifaceToFind)
+               {
+                       foreach (Type iface in ifaces) {
+                               if (iface == ifaceToFind)
+                                       return true;
+
+                               Type[] base_ifaces = TypeManager.GetInterfaces (iface);
+                               if (base_ifaces.Length > 0 && IsInterfaceBaseInterface (base_ifaces, ifaceToFind))
+                                       return true;
+                       }
+                       return false;
+               }
                
                // find the nested type @name in @this.
                public Type FindNestedType (string name)
@@ -2043,7 +2062,7 @@ namespace Mono.CSharp {
                // Because the MemberCache holds members from this class and all the base classes,
                // we can avoid tons of reflection stuff.
                //
-               public MemberInfo FindMemberToOverride (Type invocationType, string name, Type [] paramTypes, bool is_property)
+               public MemberInfo FindMemberToOverride (Type invocationType, string name, Type [] paramTypes, GenericMethod genericMethod, bool is_property)
                {
                        ArrayList applicable;
                        if (method_hash != null && !is_property)
@@ -2080,7 +2099,7 @@ namespace Mono.CSharp {
                                        }
                                } else {
                                        mi = (MethodInfo) entry.Member;
-                                       cmpAttrs = TypeManager.GetArgumentTypes (mi);
+                                       cmpAttrs = TypeManager.GetParameterData (mi).Types;
                                }
 
                                if (fi != null) {
@@ -2119,7 +2138,20 @@ namespace Mono.CSharp {
                                        if (!TypeManager.IsEqual (paramTypes [j], cmpAttrs [j]))
                                                goto next;
                                }
-                               
+
+                               //
+                               // check generic arguments for methods
+                               //
+                               if (mi != null) {
+                                       Type [] cmpGenArgs = mi.GetGenericArguments ();
+                                       if (genericMethod != null && cmpGenArgs.Length > 0) {
+                                               if (genericMethod.TypeParameters.Length != cmpGenArgs.Length)
+                                                       goto next;
+                                       }
+                                       else if (! (genericMethod == null && cmpGenArgs.Length == 0))
+                                               goto next;
+                               }
+
                                //
                                // get one of the methods because this has the visibility info.
                                //
@@ -2277,7 +2309,9 @@ namespace Mono.CSharp {
                /// <summary>
                /// Cls compliance check whether methods or constructors parameters differing only in ref or out, or in array rank
                /// </summary>
-               public void VerifyClsParameterConflict (ArrayList al, MethodCore method, MemberInfo this_builder)
+               /// 
+               // TODO: refactor as method is always 'this'
+               public static void VerifyClsParameterConflict (ArrayList al, MethodCore method, MemberInfo this_builder)
                {
                        EntryType tested_type = (method is Constructor ? EntryType.Constructor : EntryType.Method) | EntryType.Public;
  
@@ -2293,7 +2327,7 @@ namespace Mono.CSharp {
                
                                MethodBase method_to_compare = (MethodBase)entry.Member;
                                AttributeTester.Result result = AttributeTester.AreOverloadedMethodParamsClsCompliant (
-                                       method.ParameterTypes, TypeManager.GetArgumentTypes (method_to_compare));
+                                       method.ParameterTypes, TypeManager.GetParameterData (method_to_compare).Types);
 
                                if (result == AttributeTester.Result.Ok)
                                        continue;
@@ -2302,16 +2336,16 @@ namespace Mono.CSharp {
 
                                // TODO: now we are ignoring CLSCompliance(false) on method from other assembly which is buggy.
                                // However it is exactly what csc does.
-                               if (md != null && !md.IsClsComplianceRequired (method.Parent))
+                               if (md != null && !md.IsClsComplianceRequired ())
                                        continue;
                
                                Report.SymbolRelatedToPreviousError (entry.Member);
                                switch (result) {
                                        case AttributeTester.Result.RefOutArrayError:
-                                               Report.Error (3006, method.Location, "Overloaded method '{0}' differing only in ref or out, or in array rank, is not CLS-compliant", method.GetSignatureForError ());
+                                               Report.Error (3006, method.Location, "Overloaded method `{0}' differing only in ref or out, or in array rank, is not CLS-compliant", method.GetSignatureForError ());
                                                continue;
                                        case AttributeTester.Result.ArrayArrayError:
-                                               Report.Error (3007, method.Location, "Overloaded method '{0}' differing only by unnamed array types is not CLS-compliant", method.GetSignatureForError ());
+                                               Report.Error (3007, method.Location, "Overloaded method `{0}' differing only by unnamed array types is not CLS-compliant", method.GetSignatureForError ());
                                                continue;
                                }