public EnumDefined <Variable, Type, Expression> Widening(EnumDefined <Variable, Type, Expression> other)
{
Contract.Requires(other != null);
Contract.Ensures(Contract.Result <EnumDefined <Variable, Type, Expression> >() != null);
return(this.Join(other));
}
public bool LessEqual(EnumDefined <Variable, Type, Expression> other)
{
Contract.Requires(other != null);
bool direct;
if (AbstractDomainsHelper.TryTrivialLessEqual(this, other, out direct))
{
return(direct);
}
Contract.Assume(other.conditions != null);
Contract.Assume(other.defined != null);
return(conditions.LessEqual(other.conditions) && defined.LessEqual(other.defined));
}
public EnumDefined <Variable, Type, Expression> Meet(EnumDefined <Variable, Type, Expression> other)
{
Contract.Requires(other != null);
Contract.Ensures(Contract.Result <EnumDefined <Variable, Type, Expression> >() != null);
EnumDefined <Variable, Type, Expression> result;
if (AbstractDomainsHelper.TryTrivialMeet(this, other, out result))
{
return(result);
}
Contract.Assume(other.conditions != null);
Contract.Assume(other.defined != null);
return(new EnumDefined <Variable, Type, Expression>(conditions.Meet(other.conditions), defined.Meet(other.defined)));
}
