public override async Task ProvideCompletionsAsync(CompletionContext context)
{
try
{
if (!context.Document.SupportsSemanticModel || !context.Document.SupportsSyntaxTree)
{
return;
}
var hasMoqReferenced = context.Document.Project.MetadataReferences.Any(r => r.Display.Contains(this._provider.AssemblyName));
if (!hasMoqReferenced)
{
return;
}
var syntaxRoot = await context.Document.GetSyntaxRootAsync();
var token = SyntaxHelpers.GetSelectedTokens(syntaxRoot, context.Position);
// Not in an opened method
if (token.Parent == null)
{
return;
}
var mockedMethodArgumentList = token.Parent as ArgumentListSyntax;
var setupMethodInvocation = mockedMethodArgumentList.Ancestors()
.OfType <InvocationExpressionSyntax>()
.Where(IsMoqSetupMethod)
.FirstOrDefault();
if (setupMethodInvocation == null)
{
return;
}
var semanticModel = await context.Document.GetSemanticModelAsync();
var matchingMockedMethods = SyntaxHelpers.GetCandidatesMockedMethodSignaturesForLambda(semanticModel, setupMethodInvocation);
var completionService = new CompletionService(context, token, semanticModel, this._provider);
foreach (IMethodSymbol matchingMockedMethodSymbol in matchingMockedMethods)
{
completionService.AddSuggestionsForMethod(matchingMockedMethodSymbol, mockedMethodArgumentList);
}
}
catch
{
}
}