1
0
mirror of https://github.com/charlienet/go-mixed.git synced 2025-07-18 00:22:41 +08:00
This commit is contained in:
2022-05-12 09:35:26 +08:00
parent 6731e53d7c
commit af7029133f
4 changed files with 342 additions and 28 deletions

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@ -1,11 +1,22 @@
package sets
type hash_set[T comparable] map[T]struct{}
import (
"bytes"
"encoding/json"
"fmt"
"strings"
func NewHashSet[T comparable](values ...T) hash_set[T] {
"golang.org/x/exp/constraints"
)
var _ Set[string] = &hash_set[string]{}
type hash_set[T constraints.Ordered] map[T]struct{}
func NewHashSet[T constraints.Ordered](values ...T) *hash_set[T] {
set := make(hash_set[T], len(values))
set.Add(values...)
return set
return &set
}
func (s hash_set[T]) Add(values ...T) {
@ -18,12 +29,49 @@ func (s hash_set[T]) Remove(v T) {
delete(s, v)
}
func (s hash_set[T]) Contain(value T) bool {
func (s hash_set[T]) Contains(value T) bool {
_, ok := s[value]
return ok
}
func (s hash_set[T]) Clone() hash_set[T] {
func (s hash_set[T]) ContainsAny(values ...T) bool {
for _, v := range values {
if _, ok := s[v]; ok {
return true
}
}
return false
}
func (s hash_set[T]) ContainsAll(values ...T) bool {
for _, v := range values {
if _, ok := s[v]; !ok {
return false
}
}
return true
}
func (s hash_set[T]) Asc() Set[T] {
return s.copyToSorted().Asc()
}
func (s hash_set[T]) Desc() Set[T] {
return s.copyToSorted().Desc()
}
func (s hash_set[T]) copyToSorted() Set[T] {
orderd := NewSortedSet[T]()
for k := range s {
orderd.Add(k)
}
return orderd
}
func (s *hash_set[T]) Clone() *hash_set[T] {
set := NewHashSet[T]()
set.Add(s.ToSlice()...)
return set
@ -35,25 +83,6 @@ func (s hash_set[T]) Iterate(fn func(value T)) {
}
}
// Union creates a new set contain all element of set s and other
func (s hash_set[T]) Union(other hash_set[T]) hash_set[T] {
set := s.Clone()
set.Add(other.ToSlice()...)
return set
}
// Intersection creates a new set whose element both be contained in set s and other
func (s hash_set[T]) Intersection(other hash_set[T]) hash_set[T] {
set := NewHashSet[T]()
s.Iterate(func(value T) {
if other.Contain(value) {
set.Add(value)
}
})
return set
}
func (s hash_set[T]) ToSlice() []T {
values := make([]T, 0, s.Size())
s.Iterate(func(value T) {
@ -70,3 +99,46 @@ func (s hash_set[T]) IsEmpty() bool {
func (s hash_set[T]) Size() int {
return len(s)
}
func (s hash_set[T]) MarshalJSON() ([]byte, error) {
items := make([]string, 0, s.Size())
for ele := range s {
b, err := json.Marshal(ele)
if err != nil {
return nil, err
}
items = append(items, string(b))
}
return []byte(fmt.Sprintf("[%s]", strings.Join(items, ", "))), nil
}
func (s hash_set[T]) UnmarshalJSON(b []byte) error {
var i []any
d := json.NewDecoder(bytes.NewReader(b))
d.UseNumber()
err := d.Decode(&i)
if err != nil {
return err
}
for _, v := range i {
if t, ok := v.(T); ok {
s.Add(t)
}
}
return nil
}
func (s hash_set[T]) String() string {
l := make([]string, 0, len(s))
for k := range s {
l = append(l, fmt.Sprint(k))
}
return fmt.Sprintf("{%s}", strings.Join(l, ", "))
}

83
sets/hash_set_test.go Normal file
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@ -0,0 +1,83 @@
package sets_test
import (
"fmt"
"testing"
"github.com/charlienet/go-mixed/json"
"github.com/charlienet/go-mixed/sets"
"github.com/stretchr/testify/assert"
)
func TestString(t *testing.T) {
s := sets.NewHashSet("abc", "bcd")
t.Log(s)
}
func SortedSetStrign(t *testing.T) {
s := sets.NewSortedSet("abc", "bcd")
t.Log(s)
}
func TestContains(t *testing.T) {
s := sets.NewHashSet("abc", "bcd", "efg", "b")
assert.Equal(t, true, s.Contains("b"))
}
func TestContainsAll(t *testing.T) {
}
func TestContainsAny(t *testing.T) {
}
func TestMarshal(t *testing.T) {
s := sets.NewHashSet("abc", "bcd", "efg", "b")
t.Log(json.StructToJsonIndent(s))
}
type GenericSet[T any] interface {
WithField(GenericSet[T]) T
Info(args ...any)
}
var _ GenericSet[*MySet[string]] = &MySet[string]{}
type MySet[T comparable] struct {
}
func (m *MySet[T]) WithField(other GenericSet[*MySet[T]]) *MySet[T] {
other.Info("with field")
return m
}
func (m *MySet[T]) Info(args ...any) {
fmt.Println("abc", args)
}
func DoStuff[T GenericSet[T]](t T) {
t.WithField(t).Info("here")
}
func TestDoStuff(t *testing.T) {
DoStuff(&MySet[string]{})
// DoStuff(sets.NewHashSet("aaa"))
}
func TestUnion(t *testing.T) {
ret := sets.Union[string](sets.NewHashSet("abc", "bcd", "e"), sets.NewHashSet("abc", "f", "bcd"))
t.Log(ret)
}
func TestDifference(t *testing.T) {
ret := sets.Difference[string](sets.NewHashSet("abc", "bcd", "e"), sets.NewHashSet("abc", "f", "bcd"))
t.Log(ret)
}
func TestIntersection(t *testing.T) {
ret := sets.Intersection[string](sets.NewHashSet("abc", "bcd", "e"), sets.NewHashSet("abc", "f", "bcd"))
t.Log(ret)
}

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@ -1,8 +1,102 @@
package sets
import (
"sync"
"github.com/charlienet/go-mixed/locker"
"golang.org/x/exp/constraints"
)
type Set[T comparable] interface {
Add(values ...T)
Add(...T)
Remove(v T)
Contain(value T) bool
Asc() Set[T]
Desc() Set[T]
Contains(T) bool
ContainsAny(...T) bool
ContainsAll(...T) bool
IsEmpty() bool
ToSlice() []T // 转换为切片
}
var defaultOptions = option{locker: locker.NewEmptyLocker()}
type option struct {
locker sync.Locker
}
type setFunc func(option)
func WithSync() setFunc {
return func(o option) {
o.locker = &sync.RWMutex{}
}
}
// 并集
func Union[T constraints.Ordered](sets ...Set[T]) Set[T] {
if len(sets) == 0 {
return NewHashSet[T]()
}
if len(sets) == 1 {
return sets[0]
}
ret := NewHashSet[T]()
for i := range sets {
ret.Add(sets[i].ToSlice()...)
}
return ret
}
// 交集
func Intersection[T constraints.Ordered](sets ...Set[T]) Set[T] {
if len(sets) == 0 {
return NewHashSet[T]()
}
if len(sets) == 1 {
return sets[0]
}
ret := NewHashSet[T]()
base := sets[0]
for _, v := range base.ToSlice() {
var insert = true
for _, s := range sets[1:] {
if !s.Contains(v) {
insert = false
break
}
}
if insert {
ret.Add(v)
}
}
return ret
}
// 差集
func Difference[T constraints.Ordered](main Set[T], sets ...Set[T]) Set[T] {
if len(sets) == 0 {
return main
}
ret := NewHashSet[T]()
for _, v := range sets[0].ToSlice() {
isDiff := true
for _, s := range sets {
if s.Contains(v) {
isDiff = false
}
}
if isDiff {
ret.Add(v)
}
}
return ret
}

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@ -1,16 +1,81 @@
package sets
type sorted_set[T comparable] struct {
import (
"golang.org/x/exp/constraints"
"golang.org/x/exp/slices"
)
type sorted_set[T constraints.Ordered] struct {
sorted []T
set Set[T]
}
func NewSortedSet[T comparable]() *sorted_set[T] {
func NewSortedSet[T constraints.Ordered](t ...T) *sorted_set[T] {
return &sorted_set[T]{
set: NewHashSet[T](),
}
}
func (s *sorted_set[T]) Add(values ...T) {
for _, v := range values {
if !s.set.Contains(v) {
s.sorted = append(s.sorted, v)
s.set.Add(v)
}
}
}
func (s *sorted_set[T]) Remove(v T) {
if s.set.Contains(v) {
for index := range s.sorted {
if s.sorted[index] == v {
s.sorted = append(s.sorted[:index], s.sorted[index+1:]...)
break
}
}
s.set.Remove(v)
}
}
func (s *sorted_set[T]) Asc() Set[T] {
keys := s.sorted
slices.Sort(keys)
return &sorted_set[T]{
sorted: keys,
set: NewHashSet(keys...),
}
}
func (s *sorted_set[T]) Desc() Set[T] {
keys := s.sorted
slices.SortFunc(keys, func(a, b T) bool {
return a > b
})
return &sorted_set[T]{
sorted: keys,
set: NewHashSet(keys...),
}
}
func (s *sorted_set[T]) Contains(v T) bool {
return s.set.Contains(v)
}
func (s *sorted_set[T]) ContainsAny(values ...T) bool {
return s.set.ContainsAny(values...)
}
func (s *sorted_set[T]) ContainsAll(values ...T) bool {
return s.set.ContainsAll(values...)
}
func (s *sorted_set[T]) IsEmpty() bool {
return s.set.IsEmpty()
}
func (s *sorted_set[T]) ToSlice() []T {
return s.sorted
}