public static HasOutput <T> FromReferenceType <T>(T result)
where T : class
{
var hasOutput = new HasOutput <T>(result is object, result);
return(hasOutput);
}
/// <summary>
/// Default assumes a reference type.
/// </summary>
public static HasOutput <T> From <T>(T result)
where T : class
{
var hasOutput = HasOutput.FromReferenceType <T>(result);
return(hasOutput);
}
public static HasOutput <T> FromValueType <T>(T result, T nonExistenceValue)
where T : struct
{
var equalityComparer = EqualityComparer <T> .Default;
var hasOutput = HasOutput.FromValueType(result, nonExistenceValue, (x, y) => equalityComparer.Equals(x, y));
return(hasOutput);
}
public static HasOutput <T> FromValueType <T>(T result, T nonExistenceValue, Func <T, T, bool> equality)
where T : struct
{
var exists = !equality(result, nonExistenceValue);
var hasOutput = new HasOutput <T>(exists, result);
return(hasOutput);
}