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48 lines
1.4 KiB
48 lines
1.4 KiB
// Copyright 2020 Google LLC All Rights Reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// Package and provides helpers for adding Close to io.{Reader|Writer}.
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package and
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import (
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"io"
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)
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// ReadCloser implements io.ReadCloser by reading from a particular io.Reader
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// and then calling the provided "Close()" method.
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type ReadCloser struct {
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io.Reader
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CloseFunc func() error
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}
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var _ io.ReadCloser = (*ReadCloser)(nil)
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// Close implements io.ReadCloser
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func (rac *ReadCloser) Close() error {
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return rac.CloseFunc()
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}
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// WriteCloser implements io.WriteCloser by reading from a particular io.Writer
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// and then calling the provided "Close()" method.
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type WriteCloser struct {
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io.Writer
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CloseFunc func() error
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}
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var _ io.WriteCloser = (*WriteCloser)(nil)
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// Close implements io.WriteCloser
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func (wac *WriteCloser) Close() error {
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return wac.CloseFunc()
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}
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