github.com/zach-klippenstein/go@v0.0.0-20150108044943-fcfbeb3adf58/test/func8.go (about)

     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 evaluation order.
     8  
     9  package main
    10  
    11  var calledf int
    12  
    13  func f() int {
    14  	calledf++
    15  	return 0
    16  }
    17  
    18  func g() int {
    19  	return calledf
    20  }
    21  
    22  var xy string
    23  
    24  func x() bool {
    25  	for false {
    26  	} // no inlining
    27  	xy += "x"
    28  	return false
    29  }
    30  
    31  func y() string {
    32  	for false {
    33  	} // no inlining
    34  	xy += "y"
    35  	return "abc"
    36  }
    37  
    38  func main() {
    39  	if f() == g() {
    40  		panic("wrong f,g order")
    41  	}
    42  
    43  	if x() == (y() == "abc") {
    44  		panic("wrong compare")
    45  	}
    46  	if xy != "xy" {
    47  		panic("wrong x,y order")
    48  	}
    49  }