1// errorcheck 2 3// Copyright 2009 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 that incorrect uses of the blank identifer are caught. 8// Does not compile. 9 10package _ // ERROR "invalid package name _" 11 12var t struct { 13 _ int 14} 15 16type T struct { 17 _ []int 18} 19 20func main() { 21 _() // ERROR "cannot use _ as value" 22 x := _+1 // ERROR "cannot use _ as value" 23 _ = x 24 _ = t._ // ERROR "cannot refer to blank field|invalid use of" 25 26 var v1, v2 T 27 _ = v1 == v2 // ERROR "cannot be compared|non-comparable" 28} 29