func NewTypeTree() *TypeTree {
t := TypeTree{}
t.tree = llrb.New(lessPtr)
t.Index = 0
emptyPtrNode = &llrb.Item{0, "", 0, 0}
return &t
}
// rebuildIndex does the work of regenerating the index
// with the given keys.
func rebuild(less LessFunction, keys <-chan string) *llrb.LLRB {
tree := llrb.New()
for key := range keys {
tree.ReplaceOrInsert(llrbString{s: key, l: less})
}
return tree
}
func New() *ZSet {
tree := llrb.New()
set := make(map[string]int)
zs := &ZSet{tree, set}
return zs
}