private bool Evaluate(AoUsesFlagsAttribute usesFlags)
{
switch (usesFlags.Criteria)
{
case FlagsCriteria.HasAll:
return(this.EvaluateHasAll(usesFlags));
case FlagsCriteria.HasAny:
return(this.EvaluateHasAny(usesFlags));
case FlagsCriteria.EqualsToAny:
return(this.EvaluateEqualsToAny(usesFlags));
case FlagsCriteria.Default:
return(true);
default:
throw new ArgumentOutOfRangeException();
}
}
private bool EvaluateHasAny(AoUsesFlagsAttribute usesFlags)
{
var flagValue = this.GetFlagValue(usesFlags.Flag);
return((flagValue & usesFlags.CriteriaValue) > 0);
}
private bool EvaluateEqualsToAny(AoUsesFlagsAttribute usesFlags)
{
var flagValue = this.GetFlagValue(usesFlags.Flag);
return(usesFlags.CriteriaValues.Any(v => v == flagValue));
}
private bool EvaluateHasNone(AoUsesFlagsAttribute usesFlags)
{
var flagValue = this.GetFlagValue(usesFlags.Flag);
return(usesFlags.CriteriaValues.All(v => (v & flagValue) == 0));
}
