private static void AddBaseType(CodeFixContext context, ClassDeclarationSyntax classDeclaration, TypeSyntax viewModelBaseType, DocumentEditor editor)
{
if (classDeclaration.BaseList != null &&
classDeclaration.BaseList.Types.TryFirst(
x => (x.Type as IdentifierNameSyntax)?.Identifier.ValueText.Contains("INotifyPropertyChanged") == true,
out var baseType) &&
context.Diagnostics.Any(IsINotifyPropertyChangedMissing))
{
editor.ReplaceNode(baseType, SyntaxFactory.SimpleBaseType(viewModelBaseType));
}
else
{
editor.AddBaseType(classDeclaration, viewModelBaseType);
}
}