func NewNest(keyspace datastore.Keyspace, nest *algebra.Nest) *Nest {
return &Nest{
keyspace: keyspace,
term: nest.Right(),
outer: nest.Outer(),
}
}
func (this *builder) VisitNest(node *algebra.Nest) (interface{}, error) {
_, err := node.Left().Accept(this)
if err != nil {
return nil, err
}
right := node.Right()
right.SetDefaultNamespace(this.namespace)
namespace, err := this.datastore.NamespaceByName(right.Namespace())
if err != nil {
return nil, err
}
keyspace, err := namespace.KeyspaceByName(right.Keyspace())
if err != nil {
return nil, err
}
nest := NewNest(keyspace, node)
this.subChildren = append(this.subChildren, nest)
return nil, nil
}