public static int HashCode(this object obj, int prime = 397)
{
var evaluator = new PropertyEvaluator(obj);
unchecked
{
return(evaluator.Signatures.Aggregate(prime, (current, signature) => current * prime + evaluator[signature]?.GetHashCode() ?? 0));
}
}
public static int HashCode(this object obj, string signature) => PropertyEvaluator.GetValue(obj, signature).GetHashCode();
public PropertyEvaluatorTrying(PropertyEvaluator evaluator) => this.evaluator = evaluator;
public static Maybe <object> GetValue(object obj, string signature)
{
var evaluator = new PropertyEvaluator(obj);
return(((IHash <string, object>)evaluator).Map(signature, o => o));
}