internal string Check()
{
var result = new StringBuilder();
foreach (var missingRequirement in Required.Where(req => !Provided.Contains(req)))
{
result.AppendLine("ERROR: " + missingRequirement.Source + " requires " + Context + " " + missingRequirement.Value + " but it's missing");
}
if (CheckForAdditionals)
{
foreach (var additional in Provided.Where(req => !Required.Contains(req)))
{
result.AppendLine("WARN: " + additional.Source + " provides " + Context + " " + additional.Value + " but it's never used");
}
}
return(result.ToString());
}