将 NewLoader 改成私有的

lfu.go

@@ -40,7 +40,7 @@ func newLFUCache(conf *config) Cache {
 		config:   conf,
 		itemMap:  make(map[string]*heap.Item, mapInitialCap),
 		itemHeap: heap.New(sliceInitialCap),
-		loader:   NewLoader(conf.singleflight),
+		loader:   newLoader(conf.singleflight),
 	}
 
 	return cache

load.go

@@ -26,9 +26,9 @@ type loader struct {
 	group *flight.Group
 }
 
-// NewLoader creates a loader.
+// newLoader creates a loader.
 // It also creates a singleflight group to call load if singleflight is true.
-func NewLoader(singleflight bool) *loader {
+func newLoader(singleflight bool) *loader {
 	loader := new(loader)
 
 	if singleflight {

load_test.go

@@ -31,7 +31,7 @@ type testLoadCache struct {
 
 func newTestLoadCache(singleflight bool) Cache {
 	cache := &testLoadCache{
-		loader: NewLoader(singleflight),
+		loader: newLoader(singleflight),
 	}
 
 	return cache
@@ -69,12 +69,12 @@ func (tlc *testLoadCache) Load(key string, ttl time.Duration, load func() (value
 
 // go test -v -cover -count=1 -test.cpu=1 -run=^TestNewLoader$
 func TestNewLoader(t *testing.T) {
-	loader := NewLoader(false)
+	loader := newLoader(false)
 	if loader.group != nil {
 		t.Fatalf("loader.group %+v != nil", loader.group)
 	}
 
-	loader = NewLoader(true)
+	loader = newLoader(true)
 	if loader.group == nil {
 		t.Fatal("loader.group == nil")
 	}

lru.go

@@ -39,7 +39,7 @@ func newLRUCache(conf *config) Cache {
 		config:      conf,
 		elementMap:  make(map[string]*list.Element, mapInitialCap),
 		elementList: list.New(),
-		loader:      NewLoader(conf.singleflight),
+		loader:      newLoader(conf.singleflight),
 	}
 
 	return cache

standard.go

@@ -32,7 +32,7 @@ func newStandardCache(conf *config) Cache {
 	cache := &standardCache{
 		config:  conf,
 		entries: make(map[string]*entry, mapInitialCap),
-		loader:  NewLoader(conf.singleflight),
+		loader:  newLoader(conf.singleflight),
 	}
 
 	return cache