issue43087.go

     1  // Copyright 2021 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package p
     6  
     7  func _() {
     8  	a, b, b /* ERROR "b repeated on left side of :=" */ := 1, 2, 3
     9  	_ = a
    10  	_ = b
    11  }
    12  
    13  func _() {
    14  	a, _, _ := 1, 2, 3 // multiple _'s ok
    15  	_ = a
    16  }
    17  
    18  func _() {
    19  	var b int
    20  	a, b, b /* ERROR "b repeated on left side of :=" */ := 1, 2, 3
    21  	_ = a
    22  	_ = b
    23  }
    24  
    25  func _() {
    26  	var a []int
    27  	a /* ERRORx `non-name .* on left side of :=` */ [0], b := 1, 2
    28  	_ = a
    29  	_ = b
    30  }
    31  
    32  func _() {
    33  	var a int
    34  	a, a /* ERROR "a repeated on left side of :=" */ := 1, 2
    35  	_ = a
    36  }
    37  
    38  func _() {
    39  	var a, b int
    40  	a, b := /* ERROR "no new variables on left side of :=" */ 1, 2
    41  	_ = a
    42  	_ = b
    43  }
    44
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