C# DomMethod类代码示例

		public void InstantiatedMethodByParameterTest ()
		{
			// build "T MyMethod<T> (T[] a)"
			DomMethod method = new DomMethod ();
			method.Name = "MyMethod";
			method.ReturnType = new DomReturnType ("T");
			method.AddTypeParameter (new TypeParameter ("T"));
			DomReturnType returnType = new DomReturnType ("T");
			returnType.ArrayDimensions = 1;
			method.Add (new DomParameter (method, "a", returnType));
			
			// give int[] as param type.
			List<IReturnType> genArgs = new List<IReturnType> ();
			List<IReturnType> args    = new List<IReturnType> ();
			returnType = new DomReturnType (DomReturnType.Int32.FullName);
			returnType.ArrayDimensions = 1;
			args.Add (returnType);
			
			IMethod instMethod = DomMethod.CreateInstantiatedGenericMethod (method, genArgs, args);
			
			// check (note that return type should be int and not int[])
			Assert.AreEqual (DomReturnType.Int32.FullName, instMethod.ReturnType.FullName);
			Assert.AreEqual (0, instMethod.ReturnType.ArrayDimensions);
			Assert.AreEqual (DomReturnType.Int32.FullName, instMethod.Parameters[0].ReturnType.FullName);
		}

		public void InstantiatedMethodByArgumentTest ()
		{
			// build "T MyMethod<T> (T a)"
			DomMethod method = new DomMethod ();
			method.Name = "MyMethod";
			method.ReturnType = new DomReturnType ("T");
			method.AddTypeParameter (new TypeParameter ("T"));
			method.Add (new DomParameter (method, "a", new DomReturnType ("T")));
			
			// give int as param type
			List<IReturnType> genArgs = new List<IReturnType> ();
			List<IReturnType> args    = new List<IReturnType> ();
			args.Add (DomReturnType.Int32);
			IMethod instMethod = DomMethod.CreateInstantiatedGenericMethod (method, genArgs, args);
			
			// check 
			Assert.AreEqual (DomReturnType.Int32.FullName, instMethod.ReturnType.FullName);
			Assert.AreEqual (DomReturnType.Int32.FullName, instMethod.Parameters[0].ReturnType.FullName);
		}

        /// <summary>
        /// Populate a DomType with methods
        /// </summary>
        void PopulateMethods(DomType parent)
        {
            List<int> removal = new List<int> ();
            Match match;
            DomMethod m;

            foreach (KeyValuePair<int,RubyDeclaration> mpair in methods) {
                if (mpair.Key > parent.Location.Line && mpair.Key < parent.BodyRegion.End.Line) {
                    parent.Add (m = new DomMethod (mpair.Value.name, Modifiers.None, MethodModifier.None, new DomLocation (mpair.Value.beginLine, 1),
                                               new DomRegion (mpair.Value.beginLine, mpair.Value.beginColumn+1,
                                                              mpair.Value.endLine, int.MaxValue), new DomReturnType (string.Empty)));
                    match = methodDefinition.Match (mpair.Value.declaration);
                    if (match.Groups["params"].Success) {
                        foreach (string param in match.Groups["params"].Value.Split (new char[]{',',' ','\t'}, StringSplitOptions.RemoveEmptyEntries)) {
                            m.Add (new DomParameter (m, param, new DomReturnType (param)));
                        }
                    }

                    removal.Add (mpair.Key);
                }// Add methods that are declared within the parent's scope
            }// Check detected methods

            // Remove used methods from map
            foreach (int key in removal){ methods.Remove (key); }
        }

			public override void Visit (Operator o)
			{
				DomMethod method = new DomMethod ();
				method.Name = ConvertQuoted (o.MemberName.Name);
				method.Documentation = RetrieveDocumentation (o.Location.Row);
				method.Location = Convert (o.MemberName.Location);
				method.Modifiers = ConvertModifiers (o.ModFlags);
				if (o.Block != null) {
					var location = LocationsBag.GetMemberLocation (o);
					var region = ConvertRegion (location != null ? location[1] : o.Block.StartLocation, o.Block.EndLocation);
					if (location != null)
						region.Start = new DomLocation (region.Start.Line, region.Start.Column + 1);
					method.BodyRegion = region;
				}
				method.Modifiers = ConvertModifiers (o.ModFlags) | MonoDevelop.Projects.Dom.Modifiers.SpecialName;
				method.ReturnType = ConvertReturnType (o.TypeName);
				AddAttributes (method, o.OptAttributes, o);
				AddParameter (method, o.ParameterInfo);
				AddExplicitInterfaces (method, o);
				
				method.DeclaringType = typeStack.Peek ();
				typeStack.Peek ().Add (method);
			}

			public override void Visit (Method m)
			{
				DomMethod method = new DomMethod ();
				method.Name = m.MemberName.Name;
				method.Documentation = RetrieveDocumentation (m.Location.Row);
				method.Location = Convert (m.MemberName.Location);
				method.Modifiers = ConvertModifiers (m.ModFlags);
				if (m.Block != null) {
					var location = LocationsBag.GetMemberLocation (m);
					var region = ConvertRegion (location != null ? location[1] : m.Block.StartLocation, m.Block.EndLocation);
					if (location != null)
						region.Start = new DomLocation (region.Start.Line, region.Start.Column + 1);
					method.BodyRegion = region;
				}
				
				method.ReturnType = ConvertReturnType (m.TypeName);
				AddAttributes (method, m.OptAttributes, m);
				AddParameter (method, m.ParameterInfo);
				AddExplicitInterfaces (method, m);
				method.Modifiers = ConvertModifiers (m.ModFlags);
				if (method.IsStatic && method.Parameters.Count > 0 && method.Parameters[0].ParameterModifiers == ParameterModifiers.This)
					method.MethodModifier |= MethodModifier.IsExtension;
				if (m.GenericMethod != null)
					AddTypeParameter (method, m.GenericMethod);
				method.DeclaringType = typeStack.Peek ();
				typeStack.Peek ().Add (method);

				// Hack: Fixes Bug 650840 - Missing completion for locals
				// Take out, when the parser has improved error recovery for this case.
				if (m.Block == null && typeStack.Peek ().ClassType != ClassType.Interface) {
					method.BodyRegion = new DomRegion (new DomLocation (m.Location.Row, m.Location.Column), typeStack.Peek ().BodyRegion.End);
				}
			}

		IMethod ConstructMethodFromDelegate (RefactoringOptions options)
		{
			DomMethod result = new DomMethod (methodName, modifiers, MethodModifier.None, DomLocation.Empty, DomRegion.Empty, returnType);
			result.DeclaringType = new DomType ("GeneratedType") { ClassType = declaringType.ClassType };
			IMethod invocation = (IMethod)delegateType.SearchMember ("Invoke", true).First ();
			foreach (var arg in invocation.Parameters) {
				result.Add (arg);
			}
			result.ReturnType = invocation.ReturnType;
			return result;
		}

			public override object VisitEventDeclaration (ICSharpCode.NRefactory.Ast.EventDeclaration eventDeclaration, object data)
			{
				DomEvent evt = new DomEvent ();
				evt.Name = eventDeclaration.Name;
				evt.Documentation = RetrieveDocumentation (eventDeclaration.StartLocation.Line);
				evt.Location = ConvertLocation (eventDeclaration.StartLocation);
				evt.Modifiers = ConvertModifiers (eventDeclaration.Modifier);
				evt.ReturnType = ConvertReturnType (eventDeclaration.TypeReference);
				evt.BodyRegion = ConvertRegion (eventDeclaration.BodyStart, eventDeclaration.BodyEnd);
				if (eventDeclaration.AddRegion != null && !eventDeclaration.AddRegion.IsNull) {
					DomMethod addMethod = new DomMethod ();
					addMethod.Name = "add";
					addMethod.BodyRegion = ConvertRegion (eventDeclaration.AddRegion.StartLocation, eventDeclaration.AddRegion.EndLocation);
					evt.AddMethod = addMethod;
				}
				if (eventDeclaration.RemoveRegion != null && !eventDeclaration.RemoveRegion.IsNull) {
					DomMethod removeMethod = new DomMethod ();
					removeMethod.Name = "remove";
					removeMethod.BodyRegion = ConvertRegion (eventDeclaration.RemoveRegion.StartLocation, eventDeclaration.RemoveRegion.EndLocation);
					evt.RemoveMethod = removeMethod;
				}
				AddAttributes (evt, eventDeclaration.Attributes);
				AddExplicitInterfaces (evt, eventDeclaration.InterfaceImplementations);
				evt.DeclaringType = typeStack.Peek ();
				typeStack.Peek ().Add (evt);
				return null;
			}

			public override object VisitDestructorDeclaration (ICSharpCode.NRefactory.Ast.DestructorDeclaration destructorDeclaration, object data)
			{
				DomMethod destructor = new DomMethod ();
				destructor.Name = ".dtor";
				destructor.Documentation = RetrieveDocumentation (destructorDeclaration.StartLocation.Line);
				destructor.Location = ConvertLocation (destructorDeclaration.StartLocation);
				destructor.BodyRegion = ConvertRegion (destructorDeclaration.EndLocation, destructorDeclaration.Body != null ? destructorDeclaration.Body.EndLocation : new ICSharpCode.NRefactory.Location (-1, -1));
				destructor.Modifiers = ConvertModifiers (destructorDeclaration.Modifier);
				AddAttributes (destructor, destructorDeclaration.Attributes);
				destructor.MethodModifier |= MethodModifier.IsFinalizer;

				destructor.DeclaringType = typeStack.Peek ();
				typeStack.Peek ().Add (destructor);

				return null;
			}

		public override object VisitInvocationExpression(InvocationExpression invocationExpression, object data)
		{
			if (invocationExpression == null) 
				return null;
			
			if (invocationDictionary.ContainsKey (invocationExpression))
				return invocationDictionary[invocationExpression];
			
			// add support for undocumented __makeref and __reftype keywords
			if (invocationExpression.TargetObject is IdentifierExpression) {
				IdentifierExpression idExpr = invocationExpression.TargetObject as IdentifierExpression;
				if (idExpr.Identifier == "__makeref") 
					return CreateResult ("System.TypedReference");
				if (idExpr.Identifier == "__reftype") 
					return CreateResult ("System.Type");
			}
			
			ResolveResult targetResult = Resolve (invocationExpression.TargetObject);
			
			if (targetResult is CombinedMethodResolveResult)
				targetResult = ((CombinedMethodResolveResult)targetResult).MethodResolveResult;
			
			targetResult.StaticResolve = false; // invocation result is never static
			if (this.resolver.CallingType != null) {
				if (targetResult is ThisResolveResult) {
					targetResult = new MethodResolveResult (this.resolver.CallingType.Methods.Where (method => method.IsConstructor));
					((MethodResolveResult)targetResult).Type = this.resolver.CallingType;
					targetResult.CallingType   = resolver.CallingType;
					targetResult.CallingMember = resolver.CallingMember;
				} else if (targetResult is BaseResolveResult) {
					System.Collections.IEnumerable baseConstructors = null;
					IType firstBaseType = null;
					foreach (IReturnType bT in this.resolver.CallingType.BaseTypes) {
						IType resolvedBaseType = resolver.SearchType (bT);
						if (firstBaseType == null && resolvedBaseType.ClassType != MonoDevelop.Projects.Dom.ClassType.Interface)
							firstBaseType = resolvedBaseType;
						foreach (IType baseType in resolver.Dom.GetInheritanceTree (resolvedBaseType)) {
							if (baseType.ClassType == MonoDevelop.Projects.Dom.ClassType.Interface)
								break;
							baseConstructors = baseType.Methods.Where (method => method.IsConstructor);
							goto bailOut;
						}
					}
				bailOut:
					if (baseConstructors == null) {
						if (firstBaseType != null) {
							// if there is a real base type without a .ctor a default .ctor for this type is generated.
							DomMethod constructedConstructor;
							constructedConstructor = new DomMethod ();
							constructedConstructor.Name = ".ctor";
							constructedConstructor.MethodModifier = MethodModifier.IsConstructor;
							constructedConstructor.DeclaringType = firstBaseType;
							constructedConstructor.Modifiers = MonoDevelop.Projects.Dom.Modifiers.Public;
							baseConstructors = new IMethod[] {
								constructedConstructor
							};
						} else {
							baseConstructors = resolver.SearchType (DomReturnType.Object).SearchMember (".ctor", true);
						}
						
					}
					targetResult = new MethodResolveResult (baseConstructors);
					((MethodResolveResult)targetResult).Type = this.resolver.CallingType;
					targetResult.CallingType   = resolver.CallingType;
					targetResult.CallingMember = resolver.CallingMember;
				}
			}
			
			MethodResolveResult methodResult = targetResult as MethodResolveResult;
			if (methodResult != null) {
				methodResult.GetsInvoked = true;
//				Console.WriteLine ("--------------------");
//				Console.WriteLine ("i:" + methodResult.ResolvedType);
/*				foreach (var arg in methodResult.GenericArguments) {
					methodResult.AddGenericArgument (arg);
				}*/
				foreach (Expression arg in invocationExpression.Arguments) {
					var type = GetTypeSafe (arg);
					methodResult.AddArgument (type);
				}
				//Console.WriteLine ("--------------------");
				methodResult.ResolveExtensionMethods ();
//				Console.WriteLine ("i2:" + methodResult.ResolvedType);
			/*	MemberReferenceExpression mre = invocationExpression.TargetObject as MemberReferenceExpression;
				if (mre != null) {
					foreach (TypeReference typeReference in mre.TypeArguments) {
						methodResult.AddGenericArgument (new DomReturnType (String.IsNullOrEmpty (typeReference.SystemType) ? typeReference.Type : typeReference.SystemType));
					}
				}*/
//				return CreateResult (methodResult.Methods [0].ReturnType);
			}
			invocationDictionary[invocationExpression] = targetResult;
			return targetResult;
		}

		public void ExtensionMethodPreserveParameterTest ()
		{
			// build "T MyMethod<T, S> (T a, S b)"
			DomMethod method = new DomMethod ();
			method.Name = "MyMethod";
			method.ReturnType = new DomReturnType ("T");
			method.AddTypeParameter (new TypeParameter ("T"));
			method.AddTypeParameter (new TypeParameter ("S"));
			
			method.Add (new DomParameter (method, "a", new DomReturnType ("T")));
			method.Add (new DomParameter (method, "b", new DomReturnType ("S")));
			
			// extend method
			List<IReturnType> genArgs = new List<IReturnType> ();
			List<IReturnType> args    = new List<IReturnType> ();
			DomType extType = new DomType ("MyType");
			
			ExtensionMethod extMethod = new ExtensionMethod (extType, method, genArgs, args);
			
			// check for MyType MyMethod<S> (S b)
			Assert.AreEqual ("MyType", extMethod.ReturnType.FullName);
			Assert.AreEqual ("S", extMethod.Parameters[0].ReturnType.FullName);
			Assert.AreEqual (1, extMethod.TypeParameters.Count);
			Assert.AreEqual ("S", extMethod.TypeParameters[0].Name);
		}

		public void ExtensionMethodTest ()
		{
			// build "T MyMethod<T, S> (this KeyValuePair<T, S> a, S b)"
			DomMethod method = new DomMethod ();
			method.Name = "MyMethod";
			method.ReturnType = new DomReturnType ("T");
			method.AddTypeParameter (new TypeParameter ("T"));
			method.AddTypeParameter (new TypeParameter ("S"));
			
			DomReturnType returnType = new DomReturnType ("KeyValuePair");
			returnType.AddTypeParameter (new DomReturnType ("T"));
			returnType.AddTypeParameter (new DomReturnType ("S"));
			method.Add (new DomParameter (method, "a", returnType));
			method.Add (new DomParameter (method, "b", new DomReturnType ("S")));
			
			// Build extendet type KeyValuePair<int, object>
			DomType type = new DomType ("KeyValuePair");
			type.AddTypeParameter (new TypeParameter ("T"));
			type.AddTypeParameter (new TypeParameter ("S"));
			IType extType = DomType.CreateInstantiatedGenericTypeInternal (type, new IReturnType[] { DomReturnType.Int32, DomReturnType.Object });
			Console.WriteLine (extType);
			
			// extend method
			List<IReturnType> genArgs = new List<IReturnType> ();
			List<IReturnType> args    = new List<IReturnType> ();
			
			ExtensionMethod extMethod = new ExtensionMethod (extType, method, genArgs, args);
			
			Console.WriteLine (extMethod);
			// check 
			Assert.AreEqual (DomReturnType.Int32.FullName, extMethod.ReturnType.FullName);
			Assert.AreEqual (DomReturnType.Object.FullName, extMethod.Parameters[0].ReturnType.FullName);
		}

		static void GenerateCU (XmlParsedDocument doc)
		{
			if (doc.XDocument == null || doc.XDocument.RootElement == null) {
				doc.Add (new Error (ErrorType.Error, 1, 1, "No root node found."));
				return;
			}

			XAttribute rootClass = doc.XDocument.RootElement.Attributes [new XName ("x", "Class")];
			if (rootClass == null) {
				doc.Add (new Error (ErrorType.Error, 1, 1, "Root node does not contain an x:Class attribute."));
				return;
			}

			bool isApplication = doc.XDocument.RootElement.Name.Name == "Application";
			
			string rootNamespace, rootType, rootAssembly;
			XamlG.ParseXmlns (rootClass.Value, out rootType, out rootNamespace, out rootAssembly);
			
			CompilationUnit cu = new CompilationUnit (doc.FileName);
			doc.CompilationUnit = cu;

			DomRegion rootRegion = doc.XDocument.RootElement.Region;
			if (doc.XDocument.RootElement.IsClosed)
				rootRegion.End = doc.XDocument.RootElement.ClosingTag.Region.End;
			
			DomType declType = new DomType (cu, ClassType.Class, Modifiers.Partial | Modifiers.Public, rootType,
			                                doc.XDocument.RootElement.Region.Start, rootNamespace, rootRegion);
			cu.Add (declType);
			
			DomMethod initcomp = new DomMethod ();
			initcomp.Name = "InitializeComponent";
			initcomp.Modifiers = Modifiers.Public;
			initcomp.ReturnType = DomReturnType.Void;
			declType.Add (initcomp);
			
			DomField _contentLoaded = new DomField ("_contentLoaded");
			_contentLoaded.ReturnType = new DomReturnType ("System.Boolean");

			if (isApplication)
				return;
			
			cu.Add (new DomUsing (DomRegion.Empty, "System"));
			cu.Add (new DomUsing (DomRegion.Empty, "System.Windows"));
			cu.Add (new DomUsing (DomRegion.Empty, "System.Windows.Controls"));
			cu.Add (new DomUsing (DomRegion.Empty, "System.Windows.Documents"));
			cu.Add (new DomUsing (DomRegion.Empty, "System.Windows.Input"));
			cu.Add (new DomUsing (DomRegion.Empty, "System.Windows.Media"));
			cu.Add (new DomUsing (DomRegion.Empty, "System.Windows.Media.Animation"));
			cu.Add (new DomUsing (DomRegion.Empty, "System.Windows.Shapes"));
			cu.Add (new DomUsing (DomRegion.Empty, "System.Windows.Controls.Primitives"));
			
//			Dictionary<string,string> namespaceMap = new Dictionary<string, string> ();
//			namespaceMap["x"] = "http://schemas.microsoft.com/winfx/2006/xaml";
			
			XName nameAtt = new XName ("x", "Name");
			
			foreach (XElement el in doc.XDocument.RootElement.AllDescendentElements) {
				XAttribute name = el.Attributes [nameAtt];
				if (name != null && name.IsComplete) {
					string type = ResolveType (el);
					if (type == null || type.Length == 0)
						doc.Add (new Error (ErrorType.Error, el.Region.Start, "Could not find namespace for '" + el.Name.FullName + "'."));
					else
						declType.Add (new DomField (name.Value, Modifiers.Internal, el.Region.Start, new DomReturnType (type)));
				}
			}
		}

		void BuildFunction (XmlElement element)
		{
			var compUnit = this.CompilationUnit as PythonCompilationUnit;
			Console.WriteLine ("Function({0})", element.GetAttribute ("name"));

			var name = element.GetAttribute ("name");
			var mod = Modifiers.None;
			if (name.StartsWith ("_"))
				mod |= Modifiers.Private;
			else
				mod |= Modifiers.Public;

			var start = GetDomLocation (element);
			var region = GetDomRegion (element);
			var func = new DomMethod (name, mod, MethodModifier.None,
			                          start, region);

			compUnit.Add (func);
		}

		static DomMethod GenerateMethodStub (RefactoringOptions options, ExtractMethodParameters param)
		{
			DomMethod result = new DomMethod ();
			result.Name = param.Name;
			result.ReturnType = param.ExpressionType ?? DomReturnType.Void;
			result.Modifiers = param.Modifiers;
			if (!param.ReferencesMember)
				result.Modifiers |= MonoDevelop.Projects.Dom.Modifiers.Static;
			
			if (param.Parameters == null)
				return result;
			foreach (var p in param.Parameters) {
				if (param.OneChangedVariable && p.UsedAfterCutRegion && !p.UsedInCutRegion)
					continue;
				var newParameter = new DomParameter ();
				newParameter.Name = p.Name;
				newParameter.ReturnType = p.ReturnType;
				
				if (!param.OneChangedVariable) {
					if (!p.IsDefinedInsideCutRegion && p.IsChangedInsideCutRegion) {
						newParameter.ParameterModifiers = p.UsedBeforeCutRegion ? ParameterModifiers.Ref : ParameterModifiers.Out;
					}
				}
				result.Add (newParameter);
			}
			return result;
		}

		public void InstantiatedMethodByArgumentTest_Complex ()
		{
			// build "T MyMethod<T,S> (S b, KeyValuePair<S, T> a)"
			DomMethod method = new DomMethod ();
			method.Name = "MyMethod";
			method.ReturnType = new DomReturnType ("T");
			method.AddTypeParameter (new TypeParameter ("T"));
			method.AddTypeParameter (new TypeParameter ("S"));
			method.Add (new DomParameter (method, "b", new DomReturnType ("S")));
			
			DomReturnType returnType = new DomReturnType ("KeyValuePair");
			returnType.AddTypeParameter (new DomReturnType ("T"));
			returnType.AddTypeParameter (new DomReturnType ("S"));
			method.Add (new DomParameter (method, "a", returnType));
			
			// give int, object as param type
			List<IReturnType> genArgs = new List<IReturnType> ();
			List<IReturnType> args    = new List<IReturnType> ();
			genArgs.Add (DomReturnType.Int32);
			genArgs.Add (DomReturnType.Object);
			
			IMethod instMethod = DomMethod.CreateInstantiatedGenericMethod (method, genArgs, args);
			
			// check
			Assert.AreEqual (DomReturnType.Int32.FullName, instMethod.ReturnType.FullName);
			Assert.AreEqual (DomReturnType.Object.FullName, instMethod.Parameters[0].ReturnType.FullName);
			
			Assert.AreEqual (DomReturnType.Int32.FullName, instMethod.Parameters[1].ReturnType.GenericArguments[0].FullName);
			Assert.AreEqual (DomReturnType.Object.FullName, instMethod.Parameters[1].ReturnType.GenericArguments[1].FullName);
		}