private static void HandleAttributeList(SyntaxNodeAnalysisContext context)
{
var diagnosticProperties = ImmutableDictionary.CreateBuilder <string, string>();
AttributeListSyntax attributeList = (AttributeListSyntax)context.Node;
bool violation = false;
if (attributeList.Parent.IsKind(SyntaxKind.Parameter) || attributeList.Parent.IsKind(SyntaxKind.TypeParameter))
{
// no analysis required for parameters or type (generic) parameters
return;
}
var attributeListLineSpan = attributeList.GetLineSpan();
var prevToken = attributeList.OpenBracketToken.GetPreviousToken();
if (!prevToken.IsMissingOrDefault())
{
var prevTokenLineSpan = prevToken.GetLineSpan();
if (prevTokenLineSpan.EndLinePosition.Line == attributeListLineSpan.EndLinePosition.Line)
{
diagnosticProperties.Add(FixWithNewLineBeforeKey, string.Empty);
violation = true;
}
}
var nextToken = attributeList.CloseBracketToken.GetNextToken();
if (!nextToken.IsMissingOrDefault())
{
var nextTokenLineSpan = nextToken.GetLineSpan();
// do not report for trailing attribute lists, to prevent unnecessary diagnostics and issues with the code fix
if ((nextTokenLineSpan.EndLinePosition.Line == attributeListLineSpan.EndLinePosition.Line) && !nextToken.Parent.IsKind(SyntaxKind.AttributeList))
{
diagnosticProperties.Add(FixWithNewLineAfterKey, string.Empty);
violation = true;
}
}
if (violation)
{
context.ReportDiagnostic(Diagnostic.Create(Descriptor, attributeList.OpenBracketToken.GetLocation(), diagnosticProperties.ToImmutable()));
}
}