internal OverloadedTypeSymbol(string name, TypeSymbol typeSym1, TypeSymbol typeSym2)
 {
     this.TypeSymbols = new List<TypeSymbol>();
     this.name = name;
     this.AddLocalType(typeSym1);
     this.AddLocalType(typeSym2);
 }
 internal void AddType(Type type)
 {
     TypeSymbol symbol = new TypeSymbol(type);
     string name = symbol.Name;
     if (this.NestedSymbols == null)
     {
         this.NestedSymbols = new Dictionary<string, Symbol>();
     }
     Symbol symbol2 = null;
     if (this.NestedSymbols.TryGetValue(name, out symbol2))
     {
         OverloadedTypeSymbol symbol3 = symbol2 as OverloadedTypeSymbol;
         if (symbol3 == null)
         {
             TypeSymbol symbol4 = symbol2 as TypeSymbol;
             symbol3 = new OverloadedTypeSymbol(name, symbol, symbol4);
             this.NestedSymbols[name] = symbol3;
         }
         else
         {
             symbol3.AddLocalType(symbol);
         }
     }
     else
     {
         this.NestedSymbols.Add(name, symbol);
     }
 }
        internal void AddType(Type type)
        {
            TypeSymbol typeSym = new TypeSymbol(type);
            string typeName = typeSym.Name;

            if (NestedSymbols == null)
                NestedSymbols = new Dictionary<string, Symbol>();

            Symbol existingSymbol = null;
            if (NestedSymbols.TryGetValue(typeName, out existingSymbol))
            {
                OverloadedTypeSymbol overloadSym = existingSymbol as OverloadedTypeSymbol;
                if (overloadSym == null)
                {
                    TypeSymbol typeSymbol = existingSymbol as TypeSymbol;
                    System.Diagnostics.Debug.Assert(typeSymbol != null);
                    overloadSym = new OverloadedTypeSymbol(typeName, typeSym, typeSymbol);
                    NestedSymbols[typeName] = overloadSym;
                }
                else
                {
                    overloadSym.AddLocalType(typeSym);
                }
            }
            else
            {
                NestedSymbols.Add(typeName, typeSym);
            }
        }
 // Add a local overload (within the same namespace).
 internal void AddLocalType(TypeSymbol typeSym)
 {
     // Since it's a local overload, we don't have to check whether it's ambiguous.
     TypeSymbols.Add(typeSym);
 }
 internal OverloadedTypeSymbol(string name, TypeSymbol typeSym1, TypeSymbol typeSym2)
 {
     this.name = name;
     AddLocalType(typeSym1);
     AddLocalType(typeSym2);
 }
 internal bool CanOverload(TypeSymbol typeSym)
 {
     return typeSym.GenericArgCount != this.GenericArgCount;
 }
        internal Parser(RuleValidation validation)
        {
            this.validation = validation;

            Type[] allTypes = null;

            ITypeProvider provider = validation.GetTypeProvider();
            if (provider == null)
            {
                // No type provider.  The only type we know about is "This".
                //allTypes = new Type[] { validation.ThisType };
                try
                {
                    allTypes = validation.ThisType.Assembly.GetTypes();
                }
                catch (ReflectionTypeLoadException e)
                {
                    // problems loading all the types, take what we can get
                    allTypes = e.Types;
                }
            }
            else
            {
                allTypes = provider.GetTypes();
            }


            // Go through all the known types and gather namespace information.
            // Also note which types are uniquely named; these can be looked up without
            // qualification.

            Dictionary<string, NamespaceSymbol> rootNamespaces = new Dictionary<string, NamespaceSymbol>();
            Dictionary<string, object> duplicateNames = new Dictionary<string, object>();
            NamespaceSymbol nsSym = null;
            Symbol existingSymbol = null;
            NamespaceSymbol globalNS = null; // In case we encounter a type without a namespace

            for (int i = 0; i < allTypes.Length; ++i)
            {
                Type type = allTypes[i];

                // If we got a ReflectionTypeLoadException, some types may be null, so skip them
                if (type == null)
                    continue;

                // Skip types that are not visible.
                // (If type.Assembly == null, we assume it's a design-time type, and let it through.)
                if (type.IsNotPublic && (type.Assembly != null && type.Assembly != validation.ThisType.Assembly))
                    continue;

                // Skip nested types.
                if (type.IsNested)
                    continue;

                // Add the namespaces.
                string typeNamespace = type.Namespace;
                if (string.IsNullOrEmpty(typeNamespace))
                {
                    if (globalNS == null)
                    {
                        globalNS = new NamespaceSymbol();
                        rootNamespaces.Add("", globalNS);
                    }

                    nsSym = globalNS;
                }
                else
                {
                    string[] namespaces = typeNamespace.Split('.');
                    System.Diagnostics.Debug.Assert(namespaces.Length > 0);

                    if (!rootNamespaces.TryGetValue(namespaces[0], out nsSym))
                    {
                        nsSym = new NamespaceSymbol(namespaces[0], null);
                        rootNamespaces.Add(namespaces[0], nsSym);

                        // Also add the root namespace to the global unique symbol dictionary.
                        // Replace anything that was there.  I.e., we had MS.Test.Foo,
                        // and this current one is Test.Bar.  It wins.
                        globalUniqueSymbols[namespaces[0]] = nsSym;
                    }

                    if (namespaces.Length > 1)
                    {
                        for (int j = 1; j < namespaces.Length; ++j)
                        {
                            nsSym = nsSym.AddNamespace(namespaces[j]);

                            if (globalUniqueSymbols.TryGetValue(namespaces[j], out existingSymbol))
                            {
                                // This sub-namespace is already in global unique symbols.

                                // If it's the same one as what's there, no problem.
                                NamespaceSymbol existingNS = existingSymbol as NamespaceSymbol;
                                if (existingNS != null && existingNS.Parent != nsSym.Parent)
                                {
                                    // It was different.  If the levels are the same, it's a duplicate name.
                                    if (existingNS.Level == nsSym.Level)
                                    {
                                        duplicateNames[namespaces[j]] = null;
                                    }
                                    else
                                    {
                                        // If the new one is at a lower level than the existing one,
                                        // replace it.  Otherwise, leave the existing one there.
                                        if (nsSym.Level < existingNS.Level)
                                            globalUniqueSymbols[namespaces[j]] = nsSym;
                                    }
                                }
                            }
                            else
                            {
                                globalUniqueSymbols.Add(namespaces[j], nsSym);
                            }
                        }
                    }
                }

                // Add the type to its namespace.
                nsSym.AddType(type);
            }

            // Remove non-unique namespaces.
            foreach (string name in duplicateNames.Keys)
                globalUniqueSymbols.Remove(name);

            Queue<NamespaceSymbol> nsQueue = new Queue<NamespaceSymbol>();
            foreach (NamespaceSymbol rootNS in rootNamespaces.Values)
                nsQueue.Enqueue(rootNS);

            // Add the unique types as well.
            duplicateNames.Clear();
            while (nsQueue.Count > 0)
            {
                nsSym = nsQueue.Dequeue();

                foreach (Symbol nestedSym in nsSym.NestedSymbols.Values)
                {
                    NamespaceSymbol nestedNS = nestedSym as NamespaceSymbol;
                    if (nestedNS != null)
                    {
                        nsQueue.Enqueue(nestedNS);
                    }
                    else
                    {
                        string name = nestedSym.Name;

                        if (globalUniqueSymbols.TryGetValue(name, out existingSymbol))
                        {
                            // Found an existing one with the same name.
                            if (existingSymbol is NamespaceSymbol)
                            {
                                // A type name matches a namespace name... namespace wins.
                                continue;
                            }
                            else
                            {
                                TypeSymbolBase existingTypeSymBase = (TypeSymbolBase)existingSymbol;
                                TypeSymbolBase typeSymBase = (TypeSymbolBase)nestedSym;
                                OverloadedTypeSymbol overloadSym = existingTypeSymBase.OverloadType(typeSymBase);
                                if (overloadSym == null)
                                    duplicateNames[name] = null; // Couldn't overload it.
                                else
                                    globalUniqueSymbols[name] = overloadSym;
                            }
                        }
                        else
                        {
                            globalUniqueSymbols.Add(name, nestedSym);
                        }
                    }
                }
            }

            // Remove non-unique types.
            foreach (string name in duplicateNames.Keys)
                globalUniqueSymbols.Remove(name);


            // Finally, deal with the members of "this".
            //
            // Nested types override/hide items in the global unique symbols list.
            //
            // All other members get added to the local unique symbols list.  In most
            // contexts, these will override (replace, hide) any global symbols with the same name.
            // In contexts where the parser is only looking for types and/or namespaces, local
            // symbols do NOT hide global ones.
            Type thisType = validation.ThisType;
            MemberInfo[] members = thisType.GetMembers(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static | BindingFlags.FlattenHierarchy);
            foreach (MemberInfo mi in members)
            {
                switch (mi.MemberType)
                {
                    case MemberTypes.Field:
                        if (mi.DeclaringType == thisType || ParserContext.IsNonPrivate((FieldInfo)mi, thisType))
                            localUniqueSymbols[mi.Name] = new MemberSymbol(mi);
                        break;

                    case MemberTypes.Property:
                        PropertyInfo prop = (PropertyInfo)mi;
                        ParameterInfo[] propParams = prop.GetIndexParameters();
                        if (propParams != null && propParams.Length > 0)
                        {
                            // If the property has arguments, it can only be accessed by directly calling
                            // its accessor methods.
                            MethodInfo[] accessors = prop.GetAccessors(true);
                            foreach (MethodInfo accessor in accessors)
                            {
                                if (accessor.DeclaringType == thisType || ParserContext.IsNonPrivate(accessor, thisType))
                                    localUniqueSymbols[mi.Name] = new MemberSymbol(accessor);
                            }
                        }
                        else
                        {
                            if (mi.DeclaringType == thisType)
                            {
                                // It's a property on "this", so add it even if it's private.
                                localUniqueSymbols[mi.Name] = new MemberSymbol(mi);
                            }
                            else
                            {
                                // Add the property if at least one of its accessors is non-private.
                                MethodInfo[] accessors = prop.GetAccessors(true);
                                foreach (MethodInfo accessor in accessors)
                                {
                                    if (ParserContext.IsNonPrivate(accessor, thisType))
                                    {
                                        localUniqueSymbols[mi.Name] = new MemberSymbol(mi);
                                        break;
                                    }
                                }
                            }
                        }
                        break;

                    case MemberTypes.Method:
                        MethodInfo method = (MethodInfo)mi;
                        if (!method.IsSpecialName && !method.IsGenericMethod)
                        {
                            if (mi.DeclaringType == thisType || ParserContext.IsNonPrivate(method, thisType))
                            {
                                // These simply hide anything else of the same name.
                                localUniqueSymbols[mi.Name] = new MemberSymbol(mi);
                            }
                        }
                        break;

                    case MemberTypes.NestedType:
                    case MemberTypes.TypeInfo: // Same thing but only happens with DesignTimeTypes
                        // These can overload or hide global unique symbols.
                        Type miType = (Type)mi;
                        TypeSymbol memberSym = new TypeSymbol(miType);
                        if (globalUniqueSymbols.TryGetValue(memberSym.Name, out existingSymbol))
                        {
                            TypeSymbolBase existingTypeSymBase = existingSymbol as TypeSymbolBase;
                            if (existingTypeSymBase != null)
                            {
                                // Try to overload.
                                OverloadedTypeSymbol overloadSym = existingTypeSymBase.OverloadType(memberSym);
                                if (overloadSym == null)
                                {
                                    if (mi.DeclaringType == thisType || ParserContext.IsNonPrivate(miType, thisType))
                                    {
                                        // We couldn't overload it, so hide it.
                                        globalUniqueSymbols[memberSym.Name] = memberSym;
                                    }
                                }
                                else if (mi.DeclaringType == thisType || ParserContext.IsNonPrivate(miType, thisType))
                                {
                                    globalUniqueSymbols[memberSym.Name] = overloadSym;
                                }
                            }
                            else
                            {
                                // The name clashed with something that wasn't a type name.
                                // Hide the outer one.
                                if (mi.DeclaringType == thisType || ParserContext.IsNonPrivate((Type)mi, thisType))
                                    globalUniqueSymbols[memberSym.Name] = memberSym;
                            }
                        }
                        else
                        {
                            if (mi.DeclaringType == thisType || ParserContext.IsNonPrivate(miType, thisType))
                            {
                                globalUniqueSymbols[memberSym.Name] = memberSym;
                            }
                        }
                        break;

                    default:
                        break;
                }
            }
        }
        internal CodeExpression ParseRootTypeIdentifier(ParserContext parserContext, TypeSymbol typeSym, bool assignIsEquality)
        {
            string message = null;
            int typePosition = parserContext.CurrentToken.StartPosition;

            Token token = parserContext.NextToken();

            if (typeSym.GenericArgCount > 0 && token.TokenID != TokenID.Less)
            {
                // This is a generic type, but no argument list was provided.
                message = string.Format(CultureInfo.CurrentCulture, Messages.Parser_MissingTypeArguments, typeSym.Name);
                throw new RuleSyntaxException(ErrorNumbers.Error_MissingTypeArguments, message, token.StartPosition);
            }

            Type type = typeSym.Type;

            if (token.TokenID == TokenID.Less)
            {
                // Start of a generic argument list... the type had better be generic.
                if (typeSym.GenericArgCount == 0)
                {
                    message = string.Format(CultureInfo.CurrentCulture, Messages.Parser_NotAGenericType, RuleDecompiler.DecompileType(type));
                    throw new RuleSyntaxException(ErrorNumbers.Error_NotAGenericType, message, token.StartPosition);
                }

                Type[] typeArgs = ParseGenericTypeArgList(parserContext);

                if (typeArgs.Length != typeSym.GenericArgCount)
                {
                    message = string.Format(CultureInfo.CurrentCulture, Messages.Parser_BadTypeArgCount, RuleDecompiler.DecompileType(type));
                    throw new RuleSyntaxException(ErrorNumbers.Error_BadTypeArgCount, message, parserContext.CurrentToken.StartPosition);
                }

                // if we are creating generics with design-time types, then the generic needs to be 
                // a wrapped type to create the generic properly, so we look up the generic to get back the wrapper
                type = Validator.ResolveType(type.AssemblyQualifiedName);
                type = type.MakeGenericType(typeArgs);
            }

            token = parserContext.CurrentToken;
            if (token.TokenID == TokenID.Dot)
            {
                Type nestedType = ParseNestedType(parserContext, type);
                if (nestedType != null)
                    type = nestedType;
            }

            return ParseTypeRef(parserContext, type, typePosition, assignIsEquality);
        }
 internal void AddLocalType(TypeSymbol typeSym)
 {
     this.TypeSymbols.Add(typeSym);
 }
 internal Parser(RuleValidation validation)
 {
     this.validation = validation;
     Type[] types = null;
     ITypeProvider typeProvider = validation.GetTypeProvider();
     if (typeProvider == null)
     {
         try
         {
             types = validation.ThisType.Assembly.GetTypes();
         }
         catch (ReflectionTypeLoadException exception)
         {
             types = exception.Types;
         }
     }
     else
     {
         types = typeProvider.GetTypes();
     }
     Dictionary<string, NamespaceSymbol> dictionary = new Dictionary<string, NamespaceSymbol>();
     Dictionary<string, object> dictionary2 = new Dictionary<string, object>();
     NamespaceSymbol symbol = null;
     Symbol symbol2 = null;
     NamespaceSymbol symbol3 = null;
     for (int i = 0; i < types.Length; i++)
     {
         Type type = types[i];
         if (((type != null) && ((!type.IsNotPublic || (type.Assembly == null)) || (type.Assembly == validation.ThisType.Assembly))) && !type.IsNested)
         {
             string str = type.Namespace;
             if (string.IsNullOrEmpty(str))
             {
                 if (symbol3 == null)
                 {
                     symbol3 = new NamespaceSymbol();
                     dictionary.Add("", symbol3);
                 }
                 symbol = symbol3;
             }
             else
             {
                 string[] strArray = str.Split(new char[] { '.' });
                 if (!dictionary.TryGetValue(strArray[0], out symbol))
                 {
                     symbol = new NamespaceSymbol(strArray[0], null);
                     dictionary.Add(strArray[0], symbol);
                     this.globalUniqueSymbols[strArray[0]] = symbol;
                 }
                 if (strArray.Length > 1)
                 {
                     for (int j = 1; j < strArray.Length; j++)
                     {
                         symbol = symbol.AddNamespace(strArray[j]);
                         if (this.globalUniqueSymbols.TryGetValue(strArray[j], out symbol2))
                         {
                             NamespaceSymbol symbol4 = symbol2 as NamespaceSymbol;
                             if ((symbol4 != null) && (symbol4.Parent != symbol.Parent))
                             {
                                 if (symbol4.Level == symbol.Level)
                                 {
                                     dictionary2[strArray[j]] = null;
                                 }
                                 else if (symbol.Level < symbol4.Level)
                                 {
                                     this.globalUniqueSymbols[strArray[j]] = symbol;
                                 }
                             }
                         }
                         else
                         {
                             this.globalUniqueSymbols.Add(strArray[j], symbol);
                         }
                     }
                 }
             }
             symbol.AddType(type);
         }
     }
     foreach (string str2 in dictionary2.Keys)
     {
         this.globalUniqueSymbols.Remove(str2);
     }
     Queue<NamespaceSymbol> queue = new Queue<NamespaceSymbol>();
     foreach (NamespaceSymbol symbol5 in dictionary.Values)
     {
         queue.Enqueue(symbol5);
     }
     dictionary2.Clear();
     while (queue.Count > 0)
     {
         foreach (Symbol symbol6 in queue.Dequeue().NestedSymbols.Values)
         {
             NamespaceSymbol item = symbol6 as NamespaceSymbol;
             if (item != null)
             {
                 queue.Enqueue(item);
             }
             else
             {
                 string name = symbol6.Name;
                 if (this.globalUniqueSymbols.TryGetValue(name, out symbol2))
                 {
                     if (!(symbol2 is NamespaceSymbol))
                     {
                         TypeSymbolBase base2 = (TypeSymbolBase) symbol2;
                         TypeSymbolBase typeSymBase = (TypeSymbolBase) symbol6;
                         OverloadedTypeSymbol symbol8 = base2.OverloadType(typeSymBase);
                         if (symbol8 == null)
                         {
                             dictionary2[name] = null;
                         }
                         else
                         {
                             this.globalUniqueSymbols[name] = symbol8;
                         }
                     }
                 }
                 else
                 {
                     this.globalUniqueSymbols.Add(name, symbol6);
                 }
             }
         }
     }
     foreach (string str4 in dictionary2.Keys)
     {
         this.globalUniqueSymbols.Remove(str4);
     }
     Type thisType = validation.ThisType;
     foreach (MemberInfo info in thisType.GetMembers(BindingFlags.FlattenHierarchy | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.Static | BindingFlags.Instance))
     {
         PropertyInfo info2;
         Type type3;
         TypeSymbol symbol9;
         OverloadedTypeSymbol symbol10;
         switch (info.MemberType)
         {
             case MemberTypes.Property:
             {
                 info2 = (PropertyInfo) info;
                 ParameterInfo[] indexParameters = info2.GetIndexParameters();
                 if ((indexParameters == null) || (indexParameters.Length <= 0))
                 {
                     break;
                 }
                 foreach (MethodInfo info3 in info2.GetAccessors(true))
                 {
                     if ((info3.DeclaringType == thisType) || ParserContext.IsNonPrivate(info3, thisType))
                     {
                         this.localUniqueSymbols[info.Name] = new MemberSymbol(info3);
                     }
                 }
                 continue;
             }
             case MemberTypes.TypeInfo:
             case MemberTypes.NestedType:
             {
                 type3 = (Type) info;
                 symbol9 = new TypeSymbol(type3);
                 if (!this.globalUniqueSymbols.TryGetValue(symbol9.Name, out symbol2))
                 {
                     goto Label_06AA;
                 }
                 TypeSymbolBase base4 = symbol2 as TypeSymbolBase;
                 if (base4 == null)
                 {
                     goto Label_0674;
                 }
                 symbol10 = base4.OverloadType(symbol9);
                 if (symbol10 != null)
                 {
                     goto Label_0643;
                 }
                 if ((info.DeclaringType == thisType) || ParserContext.IsNonPrivate(type3, thisType))
                 {
                     this.globalUniqueSymbols[symbol9.Name] = symbol9;
                 }
                 continue;
             }
             case MemberTypes.Field:
             {
                 if ((info.DeclaringType == thisType) || ParserContext.IsNonPrivate((FieldInfo) info, thisType))
                 {
                     this.localUniqueSymbols[info.Name] = new MemberSymbol(info);
                 }
                 continue;
             }
             case MemberTypes.Method:
             {
                 MethodInfo methodInfo = (MethodInfo) info;
                 if ((!methodInfo.IsSpecialName && !methodInfo.IsGenericMethod) && ((info.DeclaringType == thisType) || ParserContext.IsNonPrivate(methodInfo, thisType)))
                 {
                     this.localUniqueSymbols[info.Name] = new MemberSymbol(info);
                 }
                 continue;
             }
             default:
             {
                 continue;
             }
         }
         if (info.DeclaringType == thisType)
         {
             this.localUniqueSymbols[info.Name] = new MemberSymbol(info);
         }
         else
         {
             foreach (MethodInfo info4 in info2.GetAccessors(true))
             {
                 if (ParserContext.IsNonPrivate(info4, thisType))
                 {
                     this.localUniqueSymbols[info.Name] = new MemberSymbol(info);
                     break;
                 }
             }
         }
         continue;
     Label_0643:
         if ((info.DeclaringType == thisType) || ParserContext.IsNonPrivate(type3, thisType))
         {
             this.globalUniqueSymbols[symbol9.Name] = symbol10;
         }
         continue;
     Label_0674:
         if ((info.DeclaringType == thisType) || ParserContext.IsNonPrivate((Type) info, thisType))
         {
             this.globalUniqueSymbols[symbol9.Name] = symbol9;
         }
         continue;
     Label_06AA:
         if ((info.DeclaringType == thisType) || ParserContext.IsNonPrivate(type3, thisType))
         {
             this.globalUniqueSymbols[symbol9.Name] = symbol9;
         }
     }
 }
 internal CodeExpression ParseRootTypeIdentifier(ParserContext parserContext, TypeSymbol typeSym, bool assignIsEquality)
 {
     string message = null;
     int startPosition = parserContext.CurrentToken.StartPosition;
     Token token = parserContext.NextToken();
     if ((typeSym.GenericArgCount > 0) && (token.TokenID != TokenID.Less))
     {
         message = string.Format(CultureInfo.CurrentCulture, Messages.Parser_MissingTypeArguments, new object[] { typeSym.Name });
         throw new RuleSyntaxException(0x18b, message, token.StartPosition);
     }
     Type type = typeSym.Type;
     if (token.TokenID == TokenID.Less)
     {
         if (typeSym.GenericArgCount == 0)
         {
             message = string.Format(CultureInfo.CurrentCulture, Messages.Parser_NotAGenericType, new object[] { RuleDecompiler.DecompileType(type) });
             throw new RuleSyntaxException(0x18c, message, token.StartPosition);
         }
         Type[] typeArguments = this.ParseGenericTypeArgList(parserContext);
         if (typeArguments.Length != typeSym.GenericArgCount)
         {
             message = string.Format(CultureInfo.CurrentCulture, Messages.Parser_BadTypeArgCount, new object[] { RuleDecompiler.DecompileType(type) });
             throw new RuleSyntaxException(0x18d, message, parserContext.CurrentToken.StartPosition);
         }
         type = this.Validator.ResolveType(type.AssemblyQualifiedName).MakeGenericType(typeArguments);
     }
     if (parserContext.CurrentToken.TokenID == TokenID.Dot)
     {
         Type type2 = this.ParseNestedType(parserContext, type);
         if (type2 != null)
         {
             type = type2;
         }
     }
     return this.ParseTypeRef(parserContext, type, startPosition, assignIsEquality);
 }