C# Mono.LocationToOffset方法代码示例

		public override TooltipItem GetItem (Mono.TextEditor.TextEditor editor, int offset)
		{
			var doc = IdeApp.Workbench.ActiveDocument;
			if (doc == null || doc.ParsedDocument == null)
				return null;
			var unit = doc.ParsedDocument.GetAst<SyntaxTree> ();
			if (unit == null)
				return null;

			var file = doc.ParsedDocument.ParsedFile as CSharpUnresolvedFile;
			if (file == null)
				return null;
			
			ResolveResult result;
			AstNode node;
			var loc = editor.OffsetToLocation (offset);
			if (!doc.TryResolveAt (loc, out result, out node)) {
				if (node is CSharpTokenNode) {
					int startOffset2 = editor.LocationToOffset (node.StartLocation);
					int endOffset2 = editor.LocationToOffset (node.EndLocation);

					return new TooltipItem (new ToolTipData (unit, result, node, null), startOffset2, endOffset2 - startOffset2);
				}
				return null;
			}
			if (node == lastNode)
				return lastResult;
			var resolver = new CSharpAstResolver (doc.Compilation, unit, file);
			resolver.ApplyNavigator (new NodeListResolveVisitorNavigator (node), CancellationToken.None);

			var hoverNode = node.GetNodeAt (loc) ?? node;

			int startOffset = editor.LocationToOffset (hoverNode.StartLocation);
			int endOffset = editor.LocationToOffset (hoverNode.EndLocation);
			return lastResult = new TooltipItem (new ToolTipData (unit, result, node, resolver), startOffset, endOffset - startOffset);
		}

		MemberReference GetReference (ResolveResult result, AstNode node, string fileName, Mono.TextEditor.TextEditorData editor)
		{
			if (result == null) {
				return null;
			}
			object valid = null;
			if (result is MethodGroupResolveResult) {
				valid = ((MethodGroupResolveResult)result).Methods.FirstOrDefault (m => searchedMembers.Any (member => member is IMethod && ((IMethod)member).Region == m.Region));
			} else if (result is MemberResolveResult) {
				var foundMember = ((MemberResolveResult)result).Member;
				valid = searchedMembers.FirstOrDefault (member => member is IMember && ((IMember)member).Region == foundMember.Region);
			} else if (result is NamespaceResolveResult) {
				var ns = ((NamespaceResolveResult)result).NamespaceName;
				valid = searchedMembers.FirstOrDefault (n => n is string && n.ToString () == ns);
			} else if (result is LocalResolveResult) {
				var ns = ((LocalResolveResult)result).Variable;
				valid = searchedMembers.FirstOrDefault (n => n is IVariable && ((IVariable)n).Region == ns.Region);
			} else if (result is TypeResolveResult) {
				valid = searchedMembers.FirstOrDefault (n => n is IType);
			} else {
				valid = searchedMembers.FirstOrDefault ();
			}

			if (node is ConstructorInitializer)
				return null;

			if (node is ObjectCreateExpression)
				node = ((ObjectCreateExpression)node).Type;

			if (node is InvocationExpression)
				node = ((InvocationExpression)node).Target;
			
			if (node is MemberReferenceExpression)
				node = ((MemberReferenceExpression)node).MemberNameToken;
			
			if (node is MemberType)
				node = ((MemberType)node).MemberNameToken;
			
			if (node is TypeDeclaration && (searchedMembers.First () is IType)) 
				node = ((TypeDeclaration)node).NameToken;
			
			if (node is EntityDeclaration && (searchedMembers.First () is IMember)) 
				node = ((EntityDeclaration)node).NameToken;
			
			if (node is ParameterDeclaration && (searchedMembers.First () is IParameter)) 
				node = ((ParameterDeclaration)node).NameToken;
			if (node is ConstructorDeclaration)
				node = ((ConstructorDeclaration)node).NameToken;
			if (node is DestructorDeclaration)
				node = ((DestructorDeclaration)node).NameToken;
			var region = new DomRegion (fileName, node.StartLocation, node.EndLocation);

			var length = node is PrimitiveType ? keywordName.Length : node.EndLocation.Column - node.StartLocation.Column;
			return new MemberReference (valid, region, editor.LocationToOffset (region.Begin), length);
		}

		MemberReference GetReference (Project project, ResolveResult result, AstNode node, SyntaxTree syntaxTree, string fileName, Mono.TextEditor.TextEditorData editor)
		{
			AstNode originalNode = node;
			if (result == null)
				return null;

			object valid = null;
			if (result is MethodGroupResolveResult) {
				valid = ((MethodGroupResolveResult)result).Methods.FirstOrDefault (
					m => searchedMembers.Any (member => member is IMethod && ((IMethod)member).Region == m.Region));
			} else if (result is MemberResolveResult) {
				var foundMember = ((MemberResolveResult)result).Member;
				valid = searchedMembers.FirstOrDefault (
					member => member is IMember && ((IMember)member).Region == foundMember.Region);
			} else if (result is NamespaceResolveResult) {
				var ns = ((NamespaceResolveResult)result).Namespace;
				valid = searchedMembers.FirstOrDefault (n => n is INamespace && ns.FullName.StartsWith (((INamespace)n).FullName, StringComparison.Ordinal));
				if (!(node is NamespaceDeclaration))
					goto skip;
			} else if (result is LocalResolveResult) {
				var ns = ((LocalResolveResult)result).Variable;
				valid = searchedMembers.FirstOrDefault (n => n is IVariable && ((IVariable)n).Region == ns.Region);
			} else if (result is TypeResolveResult) {
				valid = searchedMembers.FirstOrDefault (n => n is IType);
			}
			if (node is ConstructorInitializer)
				return null;
			if (node is ObjectCreateExpression)
				node = ((ObjectCreateExpression)node).Type;
			if (node is IndexerDeclaration)
				node = ((IndexerDeclaration)node).ThisToken;

			if (node is InvocationExpression)
				node = ((InvocationExpression)node).Target;
			
			if (node is MemberReferenceExpression)
				node = ((MemberReferenceExpression)node).MemberNameToken;
			
			if (node is SimpleType)
				node = ((SimpleType)node).IdentifierToken;

			if (node is MemberType)
				node = ((MemberType)node).MemberNameToken;
			
			if (node is NamespaceDeclaration) {
				var nsd = ((NamespaceDeclaration)node);
				node = nsd.NamespaceName;
				if (node == null)
					return null;
			}

			if (node is TypeDeclaration && (searchedMembers.First () is IType)) 
				node = ((TypeDeclaration)node).NameToken;
			if (node is DelegateDeclaration) 
				node = ((DelegateDeclaration)node).NameToken;

			if (node is EntityDeclaration && (searchedMembers.First () is IMember)) 
				node = ((EntityDeclaration)node).NameToken;
			
			if (node is ParameterDeclaration && (searchedMembers.First () is IParameter)) 
				node = ((ParameterDeclaration)node).NameToken;
			if (node is ConstructorDeclaration)
				node = ((ConstructorDeclaration)node).NameToken;
			if (node is DestructorDeclaration)
				node = ((DestructorDeclaration)node).NameToken;
			if (node is NamedArgumentExpression)
				node = ((NamedArgumentExpression)node).NameToken;
			if (node is NamedExpression)
				node = ((NamedExpression)node).NameToken;
			if (node is VariableInitializer)
				node = ((VariableInitializer)node).NameToken;

			if (node is IdentifierExpression) {
				node = ((IdentifierExpression)node).IdentifierToken;
			}

		skip:

			var region = new DomRegion (fileName, node.StartLocation, node.EndLocation);

			var length = node is PrimitiveType ? keywordName.Length : node.EndLocation.Column - node.StartLocation.Column;
			if (valid == null)
				valid = searchedMembers.FirstOrDefault ();
			var reference = new CSharpMemberReference (project, originalNode, syntaxTree, valid, region, editor.LocationToOffset (region.Begin), length);

			reference.ReferenceUsageType = GetUsage (originalNode);
			return reference;
		}