private void ReportDiagnosticsIfNeeded(NameColonSyntax nameColon, SyntaxNodeAnalysisContext context, OptionSet optionSet, SyntaxTree syntaxTree)
{
if (!nameColon.IsParentKind(SyntaxKind.Argument))
{
return;
}
var argument = (ArgumentSyntax)nameColon.Parent;
var parseOptions = (CSharpParseOptions)syntaxTree.Options;
if (!optionSet.GetOption(CSharpCodeStyleOptions.PreferInferredTupleNames).Value ||
!CSharpInferredMemberNameReducer.CanSimplifyTupleElementName(argument, parseOptions))
{
return;
}
// Create a normal diagnostic
context.ReportDiagnostic(
Diagnostic.Create(GetDescriptorWithSeverity(
optionSet.GetOption(CSharpCodeStyleOptions.PreferInferredTupleNames).Notification.Value),
nameColon.GetLocation()));
// Also fade out the part of the name-colon syntax
var fadeSpan = TextSpan.FromBounds(nameColon.Name.SpanStart, nameColon.ColonToken.Span.End);
context.ReportDiagnostic(
Diagnostic.Create(
UnnecessaryWithoutSuggestionDescriptor,
syntaxTree.GetLocation(fadeSpan)));
}