private IEnumerable <GraphqlParseException> FindExceptions(ParserRuleContext context)
{
if (context.exception != null)
{
yield return(new GraphqlParseException($"Unable to parse, could not match {context.GetType().Name} at {context.Start.Line}:{context.Start.Column}", context.Location(), context.exception));
}
if (context.children != null)
{
foreach (var child in context.children.OfType <ParserRuleContext>())
{
foreach (var ex in FindExceptions(child))
{
yield return(ex);
}
}
}
}