protected static async Task <LSP.VSCompletionItem> CreateCompletionItemAsync(
string label,
LSP.CompletionItemKind kind,
string[] tags,
LSP.CompletionParams request,
Document document,
bool preselect = false,
ImmutableArray <char>?commitCharacters = null,
LSP.TextEdit?textEdit = null,
string?insertText = null,
string?sortText = null,
string?filterText = null,
long resultId = 0)
{
var position = await document.GetPositionFromLinePositionAsync(
ProtocolConversions.PositionToLinePosition(request.Position), CancellationToken.None).ConfigureAwait(false);
var completionTrigger = await ProtocolConversions.LSPToRoslynCompletionTriggerAsync(
request.Context, document, position, CancellationToken.None).ConfigureAwait(false);
var item = new LSP.VSCompletionItem()
{
TextEdit = textEdit,
InsertText = insertText,
FilterText = filterText ?? label,
Label = label,
SortText = sortText ?? label,
InsertTextFormat = LSP.InsertTextFormat.Plaintext,
Kind = kind,
Data = JObject.FromObject(new CompletionResolveData()
{
ResultId = resultId,
}),
Preselect = preselect
};
if (tags != null)
{
item.Icon = tags.ToImmutableArray().GetFirstGlyph().GetImageElement();
}
if (commitCharacters != null)
{
item.CommitCharacters = commitCharacters.Value.Select(c => c.ToString()).ToArray();
}
return(item);
}
public async Task <object> GetCompletions(LSP.Position position, LSP.CompletionContext context, CancellationToken token)
{
var completionParams = new LSP.CompletionParams()
{
TextDocument = new LSP.TextDocumentIdentifier()
{
Uri = DocumentUri,
},
Position = GetDocumentPosition(position),
Context = context,
};
var res = await _client.InvokeTextDocumentCompletionAsync(completionParams, token);
return(res);
}
protected static LSP.VSCompletionItem CreateCompletionItem(
string insertText,
LSP.CompletionItemKind kind,
string[] tags,
LSP.CompletionParams requestParameters,
bool preselect = false,
ImmutableArray <char>?commitCharacters = null,
string?sortText = null,
int resultId = 0)
{
var item = new LSP.VSCompletionItem()
{
FilterText = insertText,
InsertText = insertText,
Label = insertText,
SortText = sortText ?? insertText,
InsertTextFormat = LSP.InsertTextFormat.Plaintext,
Kind = kind,
Data = JObject.FromObject(new CompletionResolveData()
{
DisplayText = insertText,
TextDocument = requestParameters.TextDocument,
Position = requestParameters.Position,
CompletionTrigger = ProtocolConversions.LSPToRoslynCompletionTrigger(requestParameters.Context),
ResultId = resultId,
}),
Preselect = preselect
};
if (tags != null)
{
item.Icon = tags.ToImmutableArray().GetFirstGlyph().GetImageElement();
}
if (commitCharacters != null)
{
item.CommitCharacters = commitCharacters.Value.Select(c => c.ToString()).ToArray();
}
return(item);
}
private static async Task <LSP.CompletionList> RunGetCompletionsAsync(
TestLspServer testLspServer,
LSP.CompletionParams completionParams
)
{
var clientCapabilities = new LSP.VSClientCapabilities
{
SupportsVisualStudioExtensions = true
};
return(await testLspServer.ExecuteRequestAsync <
LSP.CompletionParams,
LSP.CompletionList
>(
LSP.Methods.TextDocumentCompletionName,
completionParams,
clientCapabilities,
null,
CancellationToken.None
));
}
private static async Task <LSP.CompletionList> RunGetCompletionsAsync(
TestLspServer testLspServer,
LSP.CompletionParams completionParams)
{
var completionList = await testLspServer.ExecuteRequestAsync <LSP.CompletionParams, LSP.CompletionList>(LSP.Methods.TextDocumentCompletionName,
completionParams, CancellationToken.None);
// Emulate client behavior of promoting "Data" completion list properties onto completion items.
if (testLspServer.ClientCapabilities.HasCompletionListDataCapability() &&
completionList is VSInternalCompletionList vsCompletionList &&
vsCompletionList.Data != null)
{
foreach (var completionItem in completionList.Items)
{
Assert.Null(completionItem.Data);
completionItem.Data = vsCompletionList.Data;
}
}
return(completionList);
}
private static LSP.VSCompletionItem CreateResolvedCompletionItem(string text, LSP.CompletionItemKind kind, string[] tags, LSP.CompletionParams requestParameters,
ClassifiedTextElement description, string detail, string documentation, string[] commitCharacters = null)
{
var resolvedCompletionItem = CreateCompletionItem(text, kind, tags, requestParameters, commitCharacters: commitCharacters);
resolvedCompletionItem.Detail = detail;
if (documentation != null)
{
resolvedCompletionItem.Documentation = new LSP.MarkupContent()
{
Kind = LSP.MarkupKind.PlainText,
Value = documentation
};
}
resolvedCompletionItem.Description = description;
return(resolvedCompletionItem);
}
/// <summary> /// Answers a completion request by returning the valid completions at the location. /// https://microsoft.github.io/language-server-protocol/specification#textDocument_completion /// </summary> /// <param name="solution">the solution containing the document.</param> /// <param name="request">the document position and completion context.</param> /// <param name="clientCapabilities">the client capabilities for the request.</param> /// <param name="cancellationToken">a cancellation token.</param> /// <returns>a list of completions.</returns> public Task <object> GetCompletionsAsync(Solution solution, LSP.CompletionParams request, LSP.ClientCapabilities clientCapabilities, CancellationToken cancellationToken) => ExecuteRequestAsync <LSP.CompletionParams, object>(LSP.Methods.TextDocumentCompletionName, solution, request, clientCapabilities, cancellationToken);
private static async Task <LSP.CompletionList> RunGetCompletionsAsync(Solution solution, LSP.CompletionParams completionParams)
{
var clientCapabilities = new LSP.VSClientCapabilities {
SupportsVisualStudioExtensions = true
};
var queue = CreateRequestQueue(solution);
return(await GetLanguageServer(solution).ExecuteRequestAsync <LSP.CompletionParams, LSP.CompletionList>(queue, LSP.Methods.TextDocumentCompletionName,
completionParams, clientCapabilities, null, CancellationToken.None));
}
public override async Task ProvideCompletionsAsync(CompletionContext context)
{
// This provider is exported for all workspaces - so limit it to just our workspace & the debugger's intellisense workspace
if (context.Document.Project.Solution.Workspace.Kind != WorkspaceKind.AnyCodeRoslynWorkspace &&
context.Document.Project.Solution.Workspace.Kind != StringConstants.DebuggerIntellisenseWorkspaceKind)
{
return;
}
var lspClient = _roslynLspClientServiceFactory.ActiveLanguageServerClient;
if (lspClient == null)
{
return;
}
var text = await context.Document.GetTextAsync(context.CancellationToken).ConfigureAwait(false);
var completionParams = new LSP.CompletionParams
{
TextDocument = ProtocolConversions.DocumentToTextDocumentIdentifier(context.Document),
Position = ProtocolConversions.LinePositionToPosition(text.Lines.GetLinePosition(context.Position)),
Context = new LSP.CompletionContext {
TriggerCharacter = context.Trigger.Character.ToString(), TriggerKind = GetTriggerKind(context.Trigger)
}
};
var completionObject = await lspClient.RequestAsync(LSP.Methods.TextDocumentCompletion.ToLSRequest(), completionParams, context.CancellationToken).ConfigureAwait(false);
if (completionObject == null)
{
return;
}
var completionList = ((JToken)completionObject).ToObject <RoslynCompletionItem[]>();
foreach (var item in completionList)
{
ImmutableArray <string> tags;
if (item.Tags != null)
{
tags = item.Tags.AsImmutable();
}
else
{
var glyph = ProtocolConversions.CompletionItemKindToGlyph(item.Kind);
tags = GlyphTags.GetTags(glyph);
}
var properties = ImmutableDictionary.CreateBuilder <string, string>();
if (!string.IsNullOrEmpty(item.Detail))
{
// The display text is encoded as TaggedText | value
properties.Add("Description", $"Text|{item.Detail}");
}
properties.Add("InsertionText", item.InsertText);
properties.Add("ResolveData", JToken.FromObject(item).ToString());
var completionItem = CompletionItem.Create(item.Label, item.FilterText, item.SortText, properties: properties.ToImmutable(), tags: tags);
context.AddItem(completionItem);
}
}
private static Task <LSP.CompletionList> RunGetCompletionsAsync(TestLspServer testLspServer, LSP.CompletionParams completionParams)
{
var clientCapabilities = new LSP.VSClientCapabilities {
SupportsVisualStudioExtensions = true
};
return(RunGetCompletionsAsync(testLspServer, completionParams, clientCapabilities));
}
public Task <object> InvokeTextDocumentCompletionAsync(LSP.CompletionParams request, CancellationToken cancellationToken = default)
=> InvokeWithParametersAsync <object>("textDocument/completion", request, cancellationToken);