C# (CSharp) DebuggerCompletionProvider示例

示例#1

        public async Task ProvidesCompletions()
        {
            var contentType = MimeTypeCatalog.Instance.GetContentTypeForMimeType("text/x-csharp");

            var text = @"
namespace console61
	{
		class MainClass
		{
			public static void Main (string [] args)
			{
				$Console.WriteLine(2);$
			}

			static void Method2 (int a)
			{
			}
		}
	}
";

            int startOfStatement = text.IndexOf('$');

            if (startOfStatement >= 0)
            {
                text = text.Substring(0, startOfStatement) + text.Substring(startOfStatement + 1);
            }
            int endOfStatement = text.IndexOf('$');

            if (endOfStatement >= 0)
            {
                text = text.Substring(0, endOfStatement) + text.Substring(endOfStatement + 1);
            }

            var buffer     = PlatformCatalog.Instance.TextBufferFactoryService.CreateTextBuffer(text, contentType);
            var doc        = GetAnalysisDocument(text);
            var controller = new DebuggerCompletionProvider(doc, buffer);

            var snapshot    = buffer.CurrentSnapshot;
            var startLine   = snapshot.GetLineFromPosition(startOfStatement);
            var startColumn = startOfStatement - startLine.Start.Position;
            var endLine     = snapshot.GetLineFromPosition(endOfStatement);
            var endColumn   = endOfStatement - endLine.Start.Position;

            var completionResult =
                await controller.GetExpressionCompletionDataAsync("a", new StackFrame (0, new SourceLocation("", "", startLine.LineNumber, startColumn, endLine.LineNumber, endColumn), "C#"), default);

            var items = completionResult.Items.Select(i => i.Name);

            Assert.That(items, Contains.Item("args"));
            Assert.That(items, Contains.Item("MainClass"));
            Assert.That(items, Contains.Item("Method2"));
            Assert.AreEqual(1, completionResult.ExpressionLength);
        }

示例#2

        public async Task HandlesWhenTextBufferChangesAndContainsLessLines()
        {
            var contentType = MimeTypeCatalog.Instance.GetContentTypeForMimeType("text/x-csharp");

            var text = @"
namespace console61
	{
		class MainClass
		{
			static void MethodA (int a)
			{
			}

			static void MethodB (int a)
			{
			}

			static void MethodC (int a)
			{
			}

			public static void Main (string [] args)
			{
				$Console.WriteLine(2);$
			}

			static void Method2 (int a)
			{
			}
		}
	}
";

            var textAfter = @"
namespace console61
	{
		class MainClass
		{
		}

		static void MethodZ (int a)
		{
		}
	}
";

            int startOfStatement = text.IndexOf('$');

            if (startOfStatement >= 0)
            {
                text = text.Substring(0, startOfStatement) + text.Substring(startOfStatement + 1);
            }
            int endOfStatement = text.IndexOf('$');

            if (endOfStatement >= 0)
            {
                text = text.Substring(0, endOfStatement) + text.Substring(endOfStatement + 1);
            }

            var buffer = PlatformCatalog.Instance.TextBufferFactoryService.CreateTextBuffer(text, contentType);
            var doc    = GetAnalysisDocument(text);

            var snapshot    = buffer.CurrentSnapshot;
            var startLine   = snapshot.GetLineFromPosition(startOfStatement);
            var startColumn = startOfStatement - startLine.Start.Position;
            var endLine     = snapshot.GetLineFromPosition(endOfStatement);
            var endColumn   = endOfStatement - endLine.Start.Position;

            // get the stack frame
            var stackFrame = new StackFrame(0, new SourceLocation("", "", startLine.LineNumber, startColumn, endLine.LineNumber, endColumn), "C#");

            // now, alter the source so that the stack frame's location appear after the last line in the buffer
            var bufferAfter = PlatformCatalog.Instance.TextBufferFactoryService.CreateTextBuffer(textAfter, contentType);
            var docAfter    = GetAnalysisDocument(textAfter);
            var controller  = new DebuggerCompletionProvider(docAfter, bufferAfter);

            var completionResult =
                await controller.GetExpressionCompletionDataAsync("a", stackFrame, default);

            Assert.IsNull(completionResult);
        }