/// <summary>
/// Resolve a constraint that has been recognized by applying any
/// pending operators and returning the resulting Constraint.
/// </summary>
/// <returns>A constraint that incorporates all pending operators</returns>
private Constraint Resolve(Constraint constraint)
{
while (_ops.Count > 0)
{
switch (_ops.Pop())
{
case Op.Not:
constraint = new NotConstraint(constraint);
break;
case Op.All:
constraint = new AllItemsConstraint(constraint);
break;
case Op.Some:
constraint = new SomeItemsConstraint(constraint);
break;
case Op.None:
constraint = new NoItemConstraint(constraint);
break;
case Op.Prop:
constraint = new PropertyConstraint(_opnds.Pop(), constraint);
break;
}
}
return(constraint);
}
/// <summary>
/// Resolve a constraint that has been recognized by applying any
/// pending operators and returning the resulting Constraint.
/// </summary>
/// <returns>A constraint that incorporates all pending operators</returns>
private Constraint Resolve( Constraint constraint )
{
while ( _ops.Count > 0 )
{
switch ( _ops.Pop() )
{
case Op.Not:
constraint = new NotConstraint( constraint );
break;
case Op.All:
constraint = new AllItemsConstraint( constraint );
break;
case Op.Some:
constraint = new SomeItemsConstraint( constraint );
break;
case Op.None:
constraint = new NoItemConstraint( constraint );
break;
case Op.Prop:
constraint = new PropertyConstraint( _opnds.Pop(), constraint );
break;
}
}
return constraint;
}