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// run
// Copyright 2020 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
func main() {
{
i := I(A{})
b := make(chan I, 1)
b <- B{}
var ok bool
i, ok = <-b
_ = ok
i.M()
}
{
i := I(A{})
b := make(chan I, 1)
b <- B{}
select {
case i = <-b:
}
i.M()
}
{
i := I(A{})
b := make(chan I, 1)
b <- B{}
var ok bool
select {
case i, ok = <-b:
}
_ = ok
i.M()
}
}
type I interface{ M() int }
type T int
func (T) M() int { return 0 }
type A struct{ T }
type B struct{ T }
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