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// errchk $G -e $D/$F.go
// Copyright 2009 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
var (
cr <-chan int;
cs chan<- int;
c chan int;
)
func main() {
cr = c; // ok
cs = c; // ok
c = cr; // ERROR "illegal types|incompatible|cannot"
c = cs; // ERROR "illegal types|incompatible|cannot"
cr = cs; // ERROR "illegal types|incompatible|cannot"
cs = cr; // ERROR "illegal types|incompatible|cannot"
c <- 0; // ok
ok := c <- 0; // ok
_ = ok;
<-c; // ok
x, ok := <-c; // ok
_, _ = x, ok;
cr <- 0; // ERROR "send"
ok = cr <- 0; // ERROR "send"
_ = ok;
<-cr; // ok
x, ok = <-cr; // ok
_, _ = x, ok;
cs <- 0; // ok
ok = cs <- 0; // ok
_ = ok;
<-cs; // ERROR "receive"
x, ok = <-cs; // ERROR "receive"
_, _ = x, ok;
select {
case c <- 0: // ok
case x := <-c: // ok
_ = x;
case cr <- 0: // ERROR "send"
case x := <-cr: // ok
_ = x;
case cs <- 0: // ok;
case x := <-cs: // ERROR "receive"
_ = x;
}
}
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