imageproxy/cache/nop.go

// Copyright 2013 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package cache

import "github.com/willnorris/go-imageproxy/data"

// NopCache provides a no-op cache implementation that doesn't actually cache anything.
var NopCache = new(nopCache)

type nopCache struct{}

func (c nopCache) Get(u string) (*data.Image, bool) { return nil, false }
func (c nopCache) Save(image *data.Image)           {}
func (c nopCache) Delete(u string)                  {}