EnsureTreeReady() public method

Ensures tree is up to date, matches current text buffer snapshot and all changes since the last update were processed. Blocks until all changes have been processed. Does not pump messages.
public EnsureTreeReady ( ) : void
return void
EditorTree Class Documentation
Example #1
0
        public async Task ParameterTest_ComputeCurrentParameter01() {
            ITextBuffer textBuffer = new TextBufferMock("aov(", RContentTypeDefinition.ContentType);
            SignatureHelpSource source = new SignatureHelpSource(textBuffer, EditorShell);
            SignatureHelpSessionMock session = new SignatureHelpSessionMock(textBuffer, 0);
            TextViewMock textView = session.TextView as TextViewMock;
            List<ISignature> signatures = new List<ISignature>();

            using (var tree = new EditorTree(textBuffer, EditorShell)) {
                tree.Build();
                using (var document = new EditorDocumentMock(tree)) {

                    session.TrackingPoint = new TrackingPointMock(textBuffer, 4, PointTrackingMode.Positive, TrackingFidelityMode.Forward);
                    await PackageIndexUtility.GetFunctionInfoAsync(FunctionIndex, "aov");

                    tree.TakeThreadOwnerShip();
                    await source.AugmentSignatureHelpSessionAsync(session, signatures, tree.AstRoot);

                    signatures.Should().ContainSingle();

                    int index = GetCurrentParameterIndex(signatures[0] as SignatureHelp, signatures[0].CurrentParameter);
                    index.Should().Be(0);

                    textView.Caret = new TextCaretMock(textView, 5);
                    TextBufferUtility.ApplyTextChange(textBuffer, 4, 0, 1, "a");
                    index = GetCurrentParameterIndex(signatures[0] as SignatureHelp, signatures[0].CurrentParameter);
                    index.Should().Be(0);

                    textView.Caret = new TextCaretMock(textView, 6);
                    TextBufferUtility.ApplyTextChange(textBuffer, 5, 0, 1, ",");
                    tree.EnsureTreeReady();
                    index = GetCurrentParameterIndex(signatures[0] as SignatureHelp, signatures[0].CurrentParameter);
                    index.Should().Be(1);

                    textView.Caret = new TextCaretMock(textView, 7);
                    TextBufferUtility.ApplyTextChange(textBuffer, 6, 0, 1, ",");
                    tree.EnsureTreeReady();
                    index = GetCurrentParameterIndex(signatures[0] as SignatureHelp, signatures[0].CurrentParameter);
                    index.Should().Be(2);
                }
            }
        }