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// run
// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package main
import (
"encoding/binary"
)
var (
ch1 = make(chan int)
ch2 = make(chan int)
bin = []byte("a\000\000\001")
want = binary.BigEndian.Uint32(bin)
c consumer = noopConsumer{}
)
type msg struct {
code uint32
}
type consumer interface {
consume(msg)
}
type noopConsumer struct{}
func (noopConsumer) consume(msg) {}
func init() {
close(ch1)
}
func main() {
var m msg
m.code = binary.BigEndian.Uint32(bin)
select {
case <-ch1:
c.consume(m)
if m.code != want {
// can not use m.code here, or it will work
panic("BigEndian read failed")
}
case <-ch2:
}
}
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