static async Task <LSP.TextEdit> GenerateTextEdit(
Document document,
CompletionItem item,
CompletionService completionService,
SourceText?documentText,
TextSpan?defaultSpan,
LSP.Range?defaultRange,
CancellationToken cancellationToken)
{
Contract.ThrowIfNull(documentText);
Contract.ThrowIfNull(defaultSpan);
Contract.ThrowIfNull(defaultRange);
var completionChange = await completionService.GetChangeAsync(
document, item, cancellationToken : cancellationToken).ConfigureAwait(false);
var completionChangeSpan = completionChange.TextChange.Span;
var textEdit = new LSP.TextEdit()
{
NewText = completionChange.TextChange.NewText ?? "",
Range = completionChangeSpan == defaultSpan.Value
? defaultRange
: ProtocolConversions.TextSpanToRange(completionChangeSpan, documentText),
};
return(textEdit);
}
static async Task AddTextEdit(
Document document,
CompletionItem item,
LSP.CompletionItem lspItem,
CompletionService completionService,
SourceText documentText,
TextSpan defaultSpan,
bool itemDefaultsSupported,
CancellationToken cancellationToken)
{
var completionChange = await completionService.GetChangeAsync(
document, item, cancellationToken : cancellationToken).ConfigureAwait(false);
var completionChangeSpan = completionChange.TextChange.Span;
var newText = completionChange.TextChange.NewText ?? "";
if (itemDefaultsSupported && completionChangeSpan == defaultSpan)
{
// The span is the same as the default, we just need to store the new text as
// the insert text so the client can create the text edit from it and the default range.
lspItem.InsertText = newText;
}
else
{
var textEdit = new LSP.TextEdit()
{
NewText = newText,
Range = ProtocolConversions.TextSpanToRange(completionChangeSpan, documentText),
};
lspItem.TextEdit = textEdit;
}
}
public async System.Threading.Tasks.Task <object[]> TextDocumentFormattingName(JToken arg)
{
if (trace)
{
System.Console.Error.WriteLine("<-- TextDocumentFormatting");
System.Console.Error.WriteLine(arg.ToString());
}
var request = arg.ToObject <DocumentFormattingParams>();
var document = CheckDoc(request.TextDocument.Uri);
var new_list = new List <Microsoft.VisualStudio.LanguageServer.Protocol.TextEdit>();
var changes = LanguageServer.Module.Reformat(document);
int count = 0;
foreach (var delta in changes)
{
var new_edit = new Microsoft.VisualStudio.LanguageServer.Protocol.TextEdit();
new_edit.Range = new Microsoft.VisualStudio.LanguageServer.Protocol.Range();
var lcs = LanguageServer.Module.GetLineColumn(delta.range.Start.Value, document);
var lce = LanguageServer.Module.GetLineColumn(delta.range.End.Value, document);
new_edit.Range.Start = new Position(lcs.Item1, lcs.Item2);
new_edit.Range.End = new Position(lce.Item1, lce.Item2);
new_edit.NewText = delta.NewText;
new_list.Add(new_edit);
count++;
}
return(new_list.ToArray());
}
public async System.Threading.Tasks.Task <WorkspaceEdit> TextDocumentRenameName(JToken arg)
{
if (trace)
{
System.Console.Error.WriteLine("<-- TextDocumentRename");
System.Console.Error.WriteLine(arg.ToString());
}
RenameParams request = arg.ToObject <RenameParams>();
Document document = CheckDoc(request.TextDocument.Uri);
Position position = request.Position;
int line = position.Line;
int character = position.Character;
int index = LanguageServer.Module.GetIndex(line, character, document);
if (trace)
{
System.Console.Error.WriteLine("position index = " + index);
(int, int)back = LanguageServer.Module.GetLineColumn(index, document);
System.Console.Error.WriteLine("back to l,c = " + back.Item1 + "," + back.Item2);
}
string new_name = request.NewName;
Dictionary <string, LanguageServer.TextEdit[]> changes = LanguageServer.Module.Rename(index, new_name, document);
WorkspaceEdit edit = new WorkspaceEdit();
int count = 0;
Dictionary <string, Microsoft.VisualStudio.LanguageServer.Protocol.TextEdit[]> edit_changes_array = new Dictionary <string, Microsoft.VisualStudio.LanguageServer.Protocol.TextEdit[]>();
foreach (KeyValuePair <string, LanguageServer.TextEdit[]> pair in changes)
{
string doc = pair.Key;
Uri uri = new Uri(doc);
LanguageServer.TextEdit[] val = pair.Value;
List <Microsoft.VisualStudio.LanguageServer.Protocol.TextEdit> new_list = new List <Microsoft.VisualStudio.LanguageServer.Protocol.TextEdit>();
foreach (LanguageServer.TextEdit v in val)
{
Microsoft.VisualStudio.LanguageServer.Protocol.TextEdit new_edit = new Microsoft.VisualStudio.LanguageServer.Protocol.TextEdit
{
Range = new Microsoft.VisualStudio.LanguageServer.Protocol.Range()
};
(int, int)lcs = LanguageServer.Module.GetLineColumn(v.range.Start.Value, document);
(int, int)lce = LanguageServer.Module.GetLineColumn(v.range.End.Value, document);
new_edit.Range.Start = new Position(lcs.Item1, lcs.Item2);
new_edit.Range.End = new Position(lce.Item1, lce.Item2);
new_edit.NewText = v.NewText;
new_list.Add(new_edit);
count++;
}
edit_changes_array.Add(uri.ToString(), new_list.ToArray());
}
edit.Changes = edit_changes_array;
return(edit);
}
// Internal for testing
internal static async Task <LSP.TextEdit> GenerateTextEditAsync(
Document document,
CompletionService completionService,
CompletionItem selectedItem,
bool snippetsSupported,
CancellationToken cancellationToken
)
{
var documentText = await document.GetTextAsync(cancellationToken).ConfigureAwait(false);
var completionChange = await completionService
.GetChangeAsync(document, selectedItem, cancellationToken : cancellationToken)
.ConfigureAwait(false);
var completionChangeSpan = completionChange.TextChange.Span;
var newText = completionChange.TextChange.NewText;
Contract.ThrowIfNull(newText);
// If snippets are supported, that means we can move the caret (represented by $0) to
// a new location.
if (snippetsSupported)
{
var caretPosition = completionChange.NewPosition;
if (caretPosition.HasValue)
{
// caretPosition is the absolute position of the caret in the document.
// We want the position relative to the start of the snippet.
var relativeCaretPosition = caretPosition.Value - completionChangeSpan.Start;
// The caret could technically be placed outside the bounds of the text
// being inserted. This situation is currently unsupported in LSP, so in
// these cases we won't move the caret.
if (relativeCaretPosition >= 0 && relativeCaretPosition <= newText.Length)
{
newText = newText.Insert(relativeCaretPosition, "$0");
}
}
}
var textEdit = new LSP.TextEdit()
{
NewText = newText,
Range = ProtocolConversions.TextSpanToRange(completionChangeSpan, documentText),
};
return(textEdit);
}
public async Task TestCodeActionResolveHandlerAsync()
{
var initialMarkup =
@"class A
{
void M()
{
{|caret:|}int i = 1;
}
}";
using var testLspServer = CreateTestLspServer(initialMarkup, out var locations);
var unresolvedCodeAction = CodeActionsTests.CreateCodeAction(
title: CSharpAnalyzersResources.Use_implicit_type,
kind: CodeActionKind.Refactor,
children: Array.Empty <LSP.VSCodeAction>(),
data: CreateCodeActionResolveData(
CSharpAnalyzersResources.Use_implicit_type,
locations["caret"].Single()
),
priority: PriorityLevel.Low,
groupName: "Roslyn1",
applicableRange: new LSP.Range
{
Start = new Position {
Line = 4, Character = 8
},
End = new Position {
Line = 4, Character = 11
}
},
diagnostics: null
);
// Expected text after edit:
// class A
// {
// void M()
// {
// var i = 1;
// }
// }
var expectedTextEdits = new LSP.TextEdit[]
{
GenerateTextEdit(
"var",
new LSP.Range {
Start = new Position(4, 8), End = new Position(4, 11)
}
)
};
var expectedResolvedAction = CodeActionsTests.CreateCodeAction(
title: CSharpAnalyzersResources.Use_implicit_type,
kind: CodeActionKind.Refactor,
children: Array.Empty <LSP.VSCodeAction>(),
data: CreateCodeActionResolveData(
CSharpAnalyzersResources.Use_implicit_type,
locations["caret"].Single()
),
priority: PriorityLevel.Low,
groupName: "Roslyn1",
diagnostics: null,
applicableRange: new LSP.Range
{
Start = new Position {
Line = 4, Character = 8
},
End = new Position {
Line = 4, Character = 11
}
},
edit: GenerateWorkspaceEdit(locations, expectedTextEdits)
);
var actualResolvedAction = await RunGetCodeActionResolveAsync(
testLspServer,
unresolvedCodeAction
);
AssertJsonEquals(expectedResolvedAction, actualResolvedAction);
}
public async Task TestCodeActionResolveHandlerAsync_NestedAction()
{
var initialMarkup =
@"class A
{
void M()
{
int {|caret:|}i = 1;
}
}";
using var testLspServer = CreateTestLspServer(initialMarkup, out var locations);
var unresolvedCodeAction = CodeActionsTests.CreateCodeAction(
title: string.Format(FeaturesResources.Introduce_constant_for_0, "1"),
kind: CodeActionKind.Refactor,
children: Array.Empty <LSP.VSCodeAction>(),
data: CreateCodeActionResolveData(
FeaturesResources.Introduce_constant
+ "|"
+ string.Format(FeaturesResources.Introduce_constant_for_0, "1"),
locations["caret"].Single()
),
priority: PriorityLevel.Normal,
groupName: "Roslyn2",
applicableRange: new LSP.Range
{
Start = new Position {
Line = 4, Character = 8
},
End = new Position {
Line = 4, Character = 11
}
},
diagnostics: null
);
// Expected text after edits:
// class A
// {
// private const int V = 1;
//
// void M()
// {
// int i = V;
// }
// }
var expectedTextEdits = new LSP.TextEdit[]
{
GenerateTextEdit(
@"private const int V = 1;
",
new LSP.Range {
Start = new Position(2, 4), End = new Position(2, 4)
}
),
GenerateTextEdit(
"V",
new LSP.Range {
Start = new Position(4, 16), End = new Position(4, 17)
}
)
};
var expectedResolvedAction = CodeActionsTests.CreateCodeAction(
title: string.Format(FeaturesResources.Introduce_constant_for_0, "1"),
kind: CodeActionKind.Refactor,
children: Array.Empty <LSP.VSCodeAction>(),
data: CreateCodeActionResolveData(
FeaturesResources.Introduce_constant
+ "|"
+ string.Format(FeaturesResources.Introduce_constant_for_0, "1"),
locations["caret"].Single()
),
priority: PriorityLevel.Normal,
groupName: "Roslyn2",
applicableRange: new LSP.Range
{
Start = new Position {
Line = 4, Character = 8
},
End = new Position {
Line = 4, Character = 11
}
},
diagnostics: null,
edit: GenerateWorkspaceEdit(locations, expectedTextEdits)
);
var actualResolvedAction = await RunGetCodeActionResolveAsync(
testLspServer,
unresolvedCodeAction
);
AssertJsonEquals(expectedResolvedAction, actualResolvedAction);
}