public IEnumerable <MemberDeclarationSyntax> GetQualifyingDeclarations(ClassDeclarationSyntax cls)
{
// we care about public static methods, properties and events
var methods =
cls.GetDeclarations <MethodDeclarationSyntax>()
.Where(m => m.Modifiers.Contains(SyntaxKind.PublicKeyword) &&
m.Modifiers.Contains(SyntaxKind.StaticKeyword))
.Select(m => m.WithModifiers(new SyntaxTokenList()));
var properties =
cls.GetDeclarations <PropertyDeclarationSyntax>()
.Where(m => m.Modifiers.Contains(SyntaxKind.PublicKeyword) &&
m.Modifiers.Contains(SyntaxKind.StaticKeyword));
var events =
cls.GetDeclarations <EventDeclarationSyntax>()
.Where(m => m.Modifiers.Contains(SyntaxKind.StaticKeyword));
return(Enumerable.Concat <MemberDeclarationSyntax>(methods, properties).Concat(events));
}