private static void HandleIncludeExcludeFields(PathEdgeNonGeneric targetEdge,
IElementCreatorCore creator,
IEnumerable <Expression> expressions,
Boolean exclude)
{
var destinationType = targetEdge.EndNodeType;
if (targetEdge.FieldsToExcludeInclude != null)
{
throw new Exception("There can only be one call to Exclude or Include in each part of the prefetch path.");
}
targetEdge.FieldsToExcludeInclude = new ExcludeIncludeFieldsList(exclude);
var entity = LinqUtils.CreateEntityInstanceFromEntityType(destinationType, creator);
var fields = expressions
.Select(e => GetExpression <LambdaExpression>(e).Body)
.Select(e => GetExpression <MemberExpression>(e).Member.Name)
.Select(name => LinqUtils.GetFieldObject(entity, name));
targetEdge.FieldsToExcludeInclude.AddRange(fields);
}