public ISignatureHelpSource TryCreateSignatureHelpSource(ITextBuffer textBuffer) {
var helpSource = ServiceManager.GetService<SignatureHelpSource>(textBuffer);
if (helpSource == null) {
helpSource = new SignatureHelpSource(textBuffer, _shell);
}
return helpSource;
}
public ISignatureHelpSource TryCreateSignatureHelpSource(ITextBuffer textBuffer)
{
var helpSource = ServiceManager.GetService <SignatureHelpSource>(textBuffer);
if (helpSource == null)
{
helpSource = new SignatureHelpSource(textBuffer);
}
return(helpSource);
}
public async Task SignatureHelpSourceTest01() {
string content = @"x <- as.matrix(x)";
AstRoot ast = RParser.Parse(content);
int caretPosition = 15;
ITextBuffer textBuffer = new TextBufferMock(content, RContentTypeDefinition.ContentType);
SignatureHelpSource signatureHelpSource = new SignatureHelpSource(textBuffer, EditorShell);
SignatureHelpSessionMock signatureHelpSession = new SignatureHelpSessionMock(textBuffer, caretPosition);
List<ISignature> signatures = new List<ISignature>();
signatureHelpSession.TrackingPoint = new TrackingPointMock(textBuffer, caretPosition, PointTrackingMode.Positive, TrackingFidelityMode.Forward);
await signatureHelpSource.AugmentSignatureHelpSessionAsync(signatureHelpSession, signatures, ast);
signatures.Should().ContainSingle();
signatures[0].Parameters.Should().HaveCount(8);
signatures[0].CurrentParameter.Name.Should().Be("x");
signatures[0].Content.Should().Be("as.matrix(x, ..., data, nrow, ncol, byrow, dimnames, rownames.force)");
signatures[0].Documentation.Should().NotBeEmpty();
}
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);
}
}
}
public async Task SignatureHelpSourceTest02() {
string content =
@"
x <- function(a, b = TRUE, c = 12/7) { }
x( )
";
AstRoot ast = RParser.Parse(content);
int caretPosition = content.IndexOf("( )")+1;
ITextBuffer textBuffer = new TextBufferMock(content, RContentTypeDefinition.ContentType);
SignatureHelpSource signatureHelpSource = new SignatureHelpSource(textBuffer, EditorShell);
SignatureHelpSessionMock signatureHelpSession = new SignatureHelpSessionMock(textBuffer, caretPosition);
List<ISignature> signatures = new List<ISignature>();
signatureHelpSession.TrackingPoint = new TrackingPointMock(textBuffer, caretPosition, PointTrackingMode.Positive, TrackingFidelityMode.Forward);
await signatureHelpSource.AugmentSignatureHelpSessionAsync(signatureHelpSession, signatures, ast);
signatures.Should().ContainSingle();
signatures[0].Parameters.Should().HaveCount(3);
signatures[0].CurrentParameter.Name.Should().Be("a");
signatures[0].Content.Should().Be("x(a, b = TRUE, c = 12/7)");
signatures[0].Documentation.Should().BeEmpty();
}
public async Task ParameterTest_ComputeCurrentParameter04() {
await FunctionIndexUtility.GetFunctionInfoAsync("legend");
REditorSettings.PartialArgumentNameMatch = true;
ITextBuffer textBuffer = new TextBufferMock("legend(an=1)", RContentTypeDefinition.ContentType);
SignatureHelpSource source = new SignatureHelpSource(textBuffer);
SignatureHelpSessionMock session = new SignatureHelpSessionMock(textBuffer, 0);
TextViewMock textView = session.TextView as TextViewMock;
List<ISignature> signatures = new List<ISignature>();
EditorTree tree = new EditorTree(textBuffer);
tree.Build();
var document = new EditorDocumentMock(tree);
session.TrackingPoint = new TrackingPointMock(textBuffer, 7, PointTrackingMode.Positive, TrackingFidelityMode.Forward);
tree.TakeThreadOwnerShip();
await source.AugmentSignatureHelpSessionAsync(session, signatures, tree.AstRoot);
signatures.Should().ContainSingle();
textView.Caret = new TextCaretMock(textView, 8);
SignatureHelp sh = signatures[0] as SignatureHelp;
int index = sh.ComputeCurrentParameter(tree.TextSnapshot, tree.AstRoot, 8);
index.Should().Be(9);
}
