protected virtual Func <IEnumerable <Claim> > BuildSelector(BinaryExpression[] expressions)
{
return(() =>
{
var properties = new List <ClaimProperty>();
foreach (var expression in expressions)
{
var result = this.Visit(expression);
if (result is ClaimProperty)
{
properties.Add(result as ClaimProperty);
}
else if (result is IEnumerable)
{
properties.AddRange((result as IEnumerable).OfType <ClaimProperty>());
}
else
{
throw new NotImplementedException();
}
}
return ClaimProperty.Productize(properties)
.Select(group => this.Context.ClaimFactory.Create(group))
.Where(claim => claim != null);
});
}
private static object EvaluateAssign(ExpressionVisitor visitor, object left, object right)
{
var property = new ClaimProperty(
Convert.ToString(left),
right
);
return(property);
}