C# CSharp.MemberCache类代码示例

		public void LoadMembers (TypeSpec declaringType, bool onlyTypes, ref MemberCache cache)
		{
			throw new NotImplementedException ();
		}

		public void LoadMembers (TypeSpec declaringType, bool onlyTypes, ref MemberCache cache)
		{
			throw new NotSupportedException ("Not supported for compiled definition " + GetSignatureForError ());
		}

		public void AddInterface (MemberCache baseCache)
		{
			if (baseCache.member_hash.Count > 0)
				AddCacheContents (baseCache);
		}

		/// <summary>
		///   Bootstrap this member cache by doing a deep-copy of our base.
		/// </summary>
		static Hashtable SetupCache (MemberCache base_class)
		{
			if (base_class == null)
				return new Hashtable ();

			Hashtable hash = new Hashtable (base_class.member_hash.Count);
			IDictionaryEnumerator it = base_class.member_hash.GetEnumerator ();
			while (it.MoveNext ()) {
				hash.Add (it.Key, ((ArrayList) it.Value).Clone ());
			 }
                                
			return hash;
		}

		/// <summary>
		///   Add the contents of `cache' to the member_hash.
		/// </summary>
		void AddCacheContents (MemberCache cache)
		{
			IDictionaryEnumerator it = cache.member_hash.GetEnumerator ();
			while (it.MoveNext ()) {
				ArrayList list = (ArrayList) member_hash [it.Key];
				if (list == null)
					member_hash [it.Key] = list = new ArrayList ();

				ArrayList entries = (ArrayList) it.Value;
				for (int i = entries.Count-1; i >= 0; i--) {
					CacheEntry entry = (CacheEntry) entries [i];

					if (entry.Container != cache.Container)
						break;
					list.Add (entry);
				}
			}
		}

		//
		// Populates type parameter members using type parameter constraints
		// The trick here is to be called late enough but not too late to
		// populate member cache with all members from other types
		//
		protected override void InitializeMemberCache (bool onlyTypes)
		{
			cache = new MemberCache ();
			if (ifaces != null) {
				foreach (var iface_type in Interfaces) {
					cache.AddInterface (iface_type);
				}
			}
		}

//.........这里部分代码省略.........
					if ((iface.ModFlags & Modifiers.NEW) == 0)
						iface.DefineMembers (this);
					else
						Error_KeywordNotAllowed (iface.Location);
			}

			if (RootContext.WarningLevel > 1){
				Type ptype;

				//
				// This code throws an exception in the comparer
				// I guess the string is not an object?
				//
				ptype = TypeBuilder.BaseType;
				if (ptype != null){
					defined_names = (MemberInfo []) FindMembers (
						ptype, MemberTypes.All & ~MemberTypes.Constructor,
						BindingFlags.Public | BindingFlags.Instance |
						BindingFlags.Static, null, null);

					Array.Sort (defined_names, mif_compare);
				}
			}
			
			if (constants != null)
				DefineMembers (constants, defined_names);

			if (fields != null)
				DefineMembers (fields, defined_names);

			if (this is Class){
				if (instance_constructors == null){
					if (default_constructor == null)
						DefineDefaultConstructor (false);
				}

				if (initialized_static_fields != null &&
				    default_static_constructor == null)
					DefineDefaultConstructor (true);
			}

			if (this is Struct){
				//
				// Structs can not have initialized instance
				// fields
				//
				if (initialized_static_fields != null &&
				    default_static_constructor == null)
					DefineDefaultConstructor (true);

				if (initialized_fields != null)
					ReportStructInitializedInstanceError ();
			}

			Pending = PendingImplementation.GetPendingImplementations (this);
			
			//
			// Constructors are not in the defined_names array
			//
			if (instance_constructors != null)
				DefineMembers (instance_constructors, null);
		
			if (default_static_constructor != null)
				default_static_constructor.Define (this);
			
			if (methods != null)
				DefineMembers (methods, defined_names);

			if (properties != null)
				DefineMembers (properties, defined_names);

			if (events != null)
				DefineMembers (events, defined_names);

			if (indexers != null) {
				DefineIndexers ();
			} else
				IndexerName = "Item";

			if (operators != null){
				DefineMembers (operators, null);

				CheckPairedOperators ();
			}

			if (enums != null)
				DefineMembers (enums, defined_names);
			
			if (delegates != null)
				DefineMembers (delegates, defined_names);

#if CACHE
			if (TypeBuilder.BaseType != null)
				parent_container = TypeManager.LookupMemberContainer (TypeBuilder.BaseType);

			member_cache = new MemberCache (this);
#endif

			return true;
		}

 		public override bool Define ()
		{
			if (IsGeneric) {
				foreach (TypeParameter type_param in TypeParameters) {
					if (!type_param.Resolve (this))
						return false;
				}

				foreach (TypeParameter type_param in TypeParameters) {
					if (!type_param.DefineType (this))
						return false;
				}
			}

			member_cache = new MemberCache (TypeManager.multicast_delegate_type, this);

			// FIXME: POSSIBLY make this static, as it is always constant
			//
			Type [] const_arg_types = new Type [2];
			const_arg_types [0] = TypeManager.object_type;
			const_arg_types [1] = TypeManager.intptr_type;

			const MethodAttributes ctor_mattr = MethodAttributes.RTSpecialName | MethodAttributes.SpecialName |
				MethodAttributes.HideBySig | MethodAttributes.Public;

			ConstructorBuilder = TypeBuilder.DefineConstructor (ctor_mattr,
									    CallingConventions.Standard,
									    const_arg_types);

			ConstructorBuilder.DefineParameter (1, ParameterAttributes.None, "object");
			ConstructorBuilder.DefineParameter (2, ParameterAttributes.None, "method");
			//
			// HACK because System.Reflection.Emit is lame
			//
			IParameterData [] fixed_pars = new IParameterData [] {
				new ParameterData ("object", Parameter.Modifier.NONE),
				new ParameterData ("method", Parameter.Modifier.NONE)
			};

			AParametersCollection const_parameters = new ParametersImported (
				fixed_pars,
				new Type[] { TypeManager.object_type, TypeManager.intptr_type });
			
			TypeManager.RegisterMethod (ConstructorBuilder, const_parameters);
			member_cache.AddMember (ConstructorBuilder, this);
			
			ConstructorBuilder.SetImplementationFlags (MethodImplAttributes.Runtime);

			//
			// Here the various methods like Invoke, BeginInvoke etc are defined
			//
			// First, call the `out of band' special method for
			// defining recursively any types we need:
			
			if (!Parameters.Resolve (this))
				return false;

			//
			// Invoke method
			//

			// Check accessibility
			foreach (Type partype in Parameters.Types){
				if (!IsAccessibleAs (partype)) {
					Report.SymbolRelatedToPreviousError (partype);
					Report.Error (59, Location,
						      "Inconsistent accessibility: parameter type `{0}' is less accessible than delegate `{1}'",
						      TypeManager.CSharpName (partype),
						      GetSignatureForError ());
					return false;
				}
			}
			
			ReturnType = ReturnType.ResolveAsTypeTerminal (this, false);
			if (ReturnType == null)
				return false;

			ret_type = ReturnType.Type;
            
			if (!IsAccessibleAs (ret_type)) {
				Report.SymbolRelatedToPreviousError (ret_type);
				Report.Error (58, Location,
					      "Inconsistent accessibility: return type `" +
					      TypeManager.CSharpName (ret_type) + "' is less " +
					      "accessible than delegate `" + GetSignatureForError () + "'");
				return false;
			}

			CheckProtectedModifier ();

			if (RootContext.StdLib && TypeManager.IsSpecialType (ret_type)) {
				Method.Error1599 (Location, ret_type, Report);
				return false;
			}

			TypeManager.CheckTypeVariance (ret_type, Variance.Covariant, this);

			//
			// We don't have to check any others because they are all
			// guaranteed to be accessible - they are standard types.
//.........这里部分代码省略.........

		public override bool Define ()
		{
			member_cache = new MemberCache (TypeManager.enum_type, this);
			DefineContainerMembers (constants);
			return true;
		}

		protected virtual bool DoDefineMembers ()
		{
			if (iface_exprs != null) {
				foreach (TypeExpr iface in iface_exprs) {
					ObsoleteAttribute oa = AttributeTester.GetObsoleteAttribute (iface.Type);
					if ((oa != null) && !IsObsolete)
						AttributeTester.Report_ObsoleteMessage (
							oa, iface.GetSignatureForError (), Location, Report);

					GenericTypeExpr ct = iface as GenericTypeExpr;
					if (ct != null) {
						// TODO: passing `this' is wrong, should be base type iface instead
						TypeManager.CheckTypeVariance (ct.Type, Variance.Covariant, this);

						if (!ct.CheckConstraints (this))
							return false;
					}
				}
			}

			if (base_type != null) {
				ObsoleteAttribute obsolete_attr = AttributeTester.GetObsoleteAttribute (base_type.Type);
				if (obsolete_attr != null && !IsObsolete)
					AttributeTester.Report_ObsoleteMessage (obsolete_attr, base_type.GetSignatureForError (), Location, Report);

				GenericTypeExpr ct = base_type as GenericTypeExpr;
				if ((ct != null) && !ct.CheckConstraints (this))
					return false;
				
				TypeContainer baseContainer = TypeManager.LookupTypeContainer(base_type.Type);
				if (baseContainer != null)
					baseContainer.Define();				
				
				member_cache = new MemberCache (base_type.Type, this);
			} else if (Kind == Kind.Interface) {
				member_cache = new MemberCache (null, this);
				Type [] ifaces = TypeManager.GetInterfaces (TypeBuilder);
				for (int i = 0; i < ifaces.Length; ++i)
					member_cache.AddInterface (TypeManager.LookupMemberCache (ifaces [i]));
			} else {
				member_cache = new MemberCache (null, this);
			}

			if (types != null)
				foreach (TypeContainer tc in types)
					member_cache.AddNestedType (tc);

			if (delegates != null)
				foreach (Delegate d in delegates)
					member_cache.AddNestedType (d);

			if (partial_parts != null) {
				foreach (TypeContainer part in partial_parts)
					part.member_cache = member_cache;
			}

			if (!IsTopLevel) {
				MemberInfo conflict_symbol = Parent.PartialContainer.FindBaseMemberWithSameName (Basename, false);
				if (conflict_symbol == null) {
					if ((ModFlags & Modifiers.NEW) != 0)
						Report.Warning (109, 4, Location, "The member `{0}' does not hide an inherited member. The new keyword is not required", GetSignatureForError ());
				} else {
					if ((ModFlags & Modifiers.NEW) == 0) {
						Report.SymbolRelatedToPreviousError (conflict_symbol);
						Report.Warning (108, 2, Location, "`{0}' hides inherited member `{1}'. Use the new keyword if hiding was intended",
							GetSignatureForError (), TypeManager.GetFullNameSignature (conflict_symbol));
					}
				}
			}

			DefineContainerMembers (constants);
			DefineContainerMembers (fields);

			if (Kind == Kind.Struct || Kind == Kind.Class) {
				pending = PendingImplementation.GetPendingImplementations (this);

				if (requires_delayed_unmanagedtype_check) {
					requires_delayed_unmanagedtype_check = false;
					foreach (FieldBase f in fields) {
						if (f.MemberType != null && f.MemberType.IsPointer)
							TypeManager.VerifyUnManaged (f.MemberType, f.Location);
					}
				}
			}
		
			//
			// Constructors are not in the defined_names array
			//
			DefineContainerMembers (instance_constructors);
		
			DefineContainerMembers (events);
			DefineContainerMembers (ordered_explicit_member_list);
			DefineContainerMembers (ordered_member_list);

			DefineContainerMembers (operators);
			DefineContainerMembers (delegates);

			ComputeIndexerName();
			CheckEqualsAndGetHashCode();

//.........这里部分代码省略.........

		public override void CloseType ()
		{
			if ((caching_flags & Flags.CloseTypeCreated) != 0)
				return;

			try {
				caching_flags |= Flags.CloseTypeCreated;
				TypeBuilder.CreateType ();
			} catch (TypeLoadException){
				//
				// This is fine, the code still created the type
				//
//				Report.Warning (-20, "Exception while creating class: " + TypeBuilder.Name);
//				Console.WriteLine (e.Message);
			} catch (Exception e) {
				throw new InternalErrorException (this, e);
			}
			
			if (Types != null){
				foreach (TypeContainer tc in Types)
					if (tc.Kind == Kind.Struct)
						tc.CloseType ();

				foreach (TypeContainer tc in Types)
					if (tc.Kind != Kind.Struct)
						tc.CloseType ();
			}

			if (Delegates != null)
				foreach (Delegate d in Delegates)
					d.CloseType ();

			if (compiler_generated != null)
				foreach (CompilerGeneratedClass c in compiler_generated)
					c.CloseType ();
			
			PartialContainer = null;
			types = null;
//			properties = null;
			delegates = null;
			fields = null;
			initialized_fields = null;
			initialized_static_fields = null;
			constants = null;
			ordered_explicit_member_list = null;
			ordered_member_list = null;
			methods = null;
			events = null;
			indexers = null;
			operators = null;
			compiler_generated = null;
			default_constructor = null;
			default_static_constructor = null;
			type_bases = null;
			OptAttributes = null;
			ifaces = null;
			base_cache = null;
			member_cache = null;
		}