Subversion Repositories openrisc

// 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
        <-c    // ok
        x, ok := <-c    // ok
        _, _ = x, ok

        cr <- 0 // ERROR "send"
        <-cr    // ok
        x, ok = <-cr    // ok
        _, _ = x, ok

        cs <- 0 // 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
        }

        for _ = range cs {// ERROR "receive"
        }

        close(c)
        close(cs)
        close(cr)  // ERROR "receive"
}