86 lines
1.5 KiB
Go
86 lines
1.5 KiB
Go
package treeset
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import (
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"fmt"
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"strings"
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"github.com/474420502/focus/avldup"
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"github.com/474420502/focus/compare"
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)
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// TreeSet
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type TreeSet struct {
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tree *avldup.Tree
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}
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// New
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func New(Compare compare.Compare) *TreeSet {
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return &TreeSet{tree: avldup.New(Compare)}
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}
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// Add
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func (set *TreeSet) Add(items ...interface{}) {
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for _, item := range items {
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set.tree.Put(item)
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}
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}
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// Remove
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func (set *TreeSet) Remove(items ...interface{}) {
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for _, item := range items {
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set.tree.Remove(item)
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}
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}
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// Values
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func (set *TreeSet) Values() []interface{} {
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return set.tree.Values()
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}
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// Contains
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func (set *TreeSet) Contains(item interface{}) bool {
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if _, ok := set.tree.Get(item); ok {
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return true
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}
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return false
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}
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// Contains the result is [r1,r2], not [r1, r2)
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func (set *TreeSet) GetRange(r1, r2 interface{}) (result []interface{}) {
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return set.tree.GetRange(r1, r2)
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}
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// Contains the result is [r1,item,r2] r1->item->r2 are close-knit
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func (set *TreeSet) GetAround(item interface{}) (result [3]interface{}) {
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return set.tree.GetAround(item)
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}
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// Empty
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func (set *TreeSet) Empty() bool {
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return set.Size() == 0
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}
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// Clear
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func (set *TreeSet) Clear() {
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set.tree.Clear()
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}
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// Size
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func (set *TreeSet) Size() int {
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return set.tree.Size()
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}
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// String
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func (set *TreeSet) String() string {
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content := "HashSet\n"
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items := []string{}
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set.tree.Traversal(func(k interface{}) bool {
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items = append(items, fmt.Sprintf("%v", k))
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return true
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})
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content += strings.Join(items, ", ")
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return content
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}
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