50 lines
808 B
Go
50 lines
808 B
Go
package safemap
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import "sync"
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type SafeMap[K comparable, V any] struct {
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m sync.Map
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}
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func NewSafeMap[K comparable, V any]() *SafeMap[K, V] {
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return &SafeMap[K, V]{
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m: sync.Map{},
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}
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}
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func (sm *SafeMap[K, V]) Store(key K, value V) {
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sm.m.Store(key, value)
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}
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func (sm *SafeMap[K, V]) Load(key K) (value V, ok bool) {
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val, loaded := sm.m.Load(key)
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if !loaded {
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return *new(V), false
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}
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return val.(V), true
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}
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func (sm *SafeMap[K, V]) Delete(key K) {
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sm.m.Delete(key)
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}
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func (sm *SafeMap[K, V]) Range(f func(K, V) bool) {
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sm.m.Range(func(key, value any) bool {
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k, ok1 := key.(K)
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v, ok2 := value.(V)
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if !ok1 || !ok2 {
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return true
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}
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return f(k, v)
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})
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}
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func (sm *SafeMap[K, V]) Len() int {
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count := 0
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sm.Range(func(_ K, _ V) bool {
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count++
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return true
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})
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return count
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}
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