Clean up default options

cache.go

@@ -18,9 +18,7 @@ type Cache[K comparable, V any] struct {
 
 // New creates a new empty cache.
 func New[K comparable, V any](opt ...Option) *Cache[K, V] {
-	opts := cacheOptions{
-		debounce: 1 * time.Second,
-	}
+	opts := newDefaultCacheOptions()
 
 	for _, o := range opt {
 		o.apply(&opts)

options.go

@@ -28,6 +28,15 @@ type cacheOptions struct {
 	debounce time.Duration
 }
 
+func newDefaultCacheOptions() cacheOptions {
+	return cacheOptions{
+		policy:   FIFO,
+		capacity: 0,
+		ttl:      0,
+		debounce: 1 * time.Second,
+	}
+}
+
 // WithCapacity option configures the cache with specified capacity.
 //
 // The zero values configures unbounded capacity.
@@ -64,19 +73,6 @@ func WithTTL(ttl time.Duration) Option {
 	})
 }
 
-// WithExpiryDebounce returns an option that configures the cache with specified expiry eviction debounce duration.
-//
-// The zero value configures the default 1s debounce duration.
-func WithExpiryDebounce(debounce time.Duration) Option {
-	return funcOption(func(opts *cacheOptions) {
-		if debounce == 0 {
-			opts.debounce = 1 * time.Second
-		} else {
-			opts.debounce = debounce
-		}
-	})
-}
-
 type funcOption func(*cacheOptions)
 
 func (o funcOption) apply(opts *cacheOptions) {