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// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
package cache
// None provides no caching and always calls the provided FillFunc.
//
// It is safe for concurrent use if the underlying FillFunc is.
type None[K comparable, V any] struct{}
var _ Cache[int, int] = None[int, int]{}
// Get always calls the provided FillFunc and returns what it does.
func (c None[K, V]) Get(_ K, f FillFunc[V]) (V, error) {
v, _, e := f()
return v, e
}
// Forget implements Cache.
func (None[K, V]) Forget(K) {}
// Empty implements Cache.
func (None[K, V]) Empty() {}
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