//go:build go1.9 // +build go1.9 package crr import ( "sync" ) type syncMap sync.Map func newSyncMap() syncMap { return syncMap{} } func (m *syncMap) Load(key interface{}) (interface{}, bool) { return (*sync.Map)(m).Load(key) } func (m *syncMap) Store(key interface{}, value interface{}) { (*sync.Map)(m).Store(key, value) } func (m *syncMap) Delete(key interface{}) { (*sync.Map)(m).Delete(key) } func (m *syncMap) Range(f func(interface{}, interface{}) bool) { (*sync.Map)(m).Range(f) }