protected bool TrySimplifyTypeNameExpression(SemanticModel model, SyntaxNode node, AnalyzerOptions analyzerOptions, out Diagnostic diagnostic, CancellationToken cancellationToken)
{
diagnostic = default(Diagnostic);
var optionSet = analyzerOptions.GetOptionSet();
string diagnosticId;
TextSpan issueSpan;
if (!CanSimplifyTypeNameExpressionCore(model, node, optionSet, out issueSpan, out diagnosticId, cancellationToken))
{
return(false);
}
if (model.SyntaxTree.OverlapsHiddenPosition(issueSpan, cancellationToken))
{
return(false);
}
DiagnosticDescriptor descriptor;
switch (diagnosticId)
{
case IDEDiagnosticIds.SimplifyNamesDiagnosticId:
descriptor = s_descriptorSimplifyNames;
break;
case IDEDiagnosticIds.SimplifyMemberAccessDiagnosticId:
descriptor = s_descriptorSimplifyMemberAccess;
break;
case IDEDiagnosticIds.RemoveQualificationDiagnosticId:
descriptor = GetRemoveQualificationDiagnosticDescriptor(model, node, optionSet, cancellationToken);
break;
default:
throw ExceptionUtilities.Unreachable;
}
if (descriptor == null)
{
return(false);
}
var tree = model.SyntaxTree;
var builder = ImmutableDictionary.CreateBuilder <string, string>();
builder["OptionName"] = nameof(SimplificationOptions.PreferIntrinsicPredefinedTypeKeywordInMemberAccess); // TODO: need the actual one
builder["OptionLanguage"] = model.Language;
diagnostic = Diagnostic.Create(descriptor, tree.GetLocation(issueSpan), builder.ToImmutable());
return(true);
}