/// <summary>
/// Create an instance of <see cref="SearchState"/>.
/// </summary>
/// <param name="variableBuidler"></param>
/// <param name="factory"></param>
/// <param name="formula"></param>
internal SearchState(StringBuilder variableBuidler, IVariableExpressionFactory factory, string formula)
{
VariableBuilder = variableBuidler;
_expressionFactory = factory;
_formula = formula;
}
public ReversePolishSearcher(ObjectPool <StringBuilder> pool, IVariableExpressionFactory expressionFactory)
{
_pool = pool;
_expressionFactory = expressionFactory;
}