active3/core/iosys/writer_flusher.go

// ------------------------------------------------------------------------
//   Project active2
//   Active Thing (activething.com) git.activething.com/go
//
//   File name  writer_flusher.go
//   Created by DEV
//   Modified   25/04/2024
//
//   Copyright 2024 activething.com 
// ------------------------------------------------------------------------
// 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 iosys

import "io"

type (

	WriterFlusher 	interface {
		io.Writer
		Flusher
	}
)




func AsWriterFlusher (writer io.Writer) WriterFlusher {
	if writer == nil {
		return nil
	}
	if wf,is := writer.(WriterFlusher); is {
		return wf
	}
	return struct {
		io.Writer
		Flusher
	}{
		Writer : writer,
		Flusher: NopFlusher{},
	}
}