sendstmt.go

     1  // run
     2  
     3  // Copyright 2011 The Go Authors. All rights reserved.
     4  // Use of this source code is governed by a BSD-style
     5  // license that can be found in the LICENSE file.
     6  
     7  // Test various parsing cases that are a little
     8  // different now that send is a statement, not an expression.
     9  
    10  package main
    11  
    12  func main() {
    13  	chanchan()
    14  	sendprec()
    15  }
    16  
    17  func chanchan() {
    18  	cc := make(chan chan int, 1)
    19  	c := make(chan int, 1)
    20  	cc <- c
    21  	select {
    22  	case <-cc <- 2:
    23  	default:
    24  		panic("nonblock")
    25  	}
    26  	if <-c != 2 {
    27  		panic("bad receive")
    28  	}
    29  }
    30  
    31  func sendprec() {
    32  	c := make(chan bool, 1)
    33  	c <- false || true // not a syntax error: same as c <- (false || true)
    34  	if !<-c {
    35  		panic("sent false")
    36  	}
    37  }
    38
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