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go-library/vendor/github.com/upper/db/v4/internal/sqladapter/exql/hash.go

27 lines
372 B

package exql
import (
"reflect"
"sync/atomic"
"github.com/upper/db/v4/internal/cache"
)
type hash struct {
v atomic.Value
}
func (h *hash) Hash(i interface{}) string {
v := h.v.Load()
if r, ok := v.(string); ok && r != "" {
return r
}
s := reflect.TypeOf(i).String() + ":" + cache.Hash(i)
h.v.Store(s)
return s
}
func (h *hash) Reset() {
h.v.Store("")
}