public static void EnsureExpectedSymbol(this Token value, IOperationFactory operationFactory)
{
if (value == null)
{
throw new ArgumentNullException(nameof(value));
}
if (operationFactory == null)
{
throw new ArgumentNullException(nameof(operationFactory));
}
var expectedSymbols = new[] { Symbols.Eof, Symbols.RightBracket };
var symbol = value.Symbols.First();
if (!expectedSymbols.Contains(symbol) && !operationFactory.IsSupportedOperation(symbol))
{
throw new ExpressionParseException($"Unexpected symbol: {value}");
}
}