go issue14006 源码
golang issue14006 代码
文件路径：/test/fixedbugs/issue14006.go
// errorcheck
// Copyright 2016 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.
// Literals that happen to resolve to named constants
// may be used as label names (see issue 13684). Make
// sure that other literals don't crash the compiler.
package main
const labelname = 1
func main() {
goto labelname
labelname:
}
func f() {
var x int
switch x {
case 1:
2: // ERROR "unexpected :|expected .*;.* or .*}.* or newline|value computed is not used"
case 2:
}
switch x {
case 1:
2: ; // ERROR "unexpected :|expected .*;.* or .*}.* or newline|value computed is not used"
case 2:
}
var y string
switch y {
case "foo":
"bar": // ERROR "unexpected :|expected .*;.* or .*}.* or newline|value computed is not used"
case "bar":
}
switch y {
case "foo":
"bar": ; // ERROR "unexpected :|expected .*;.* or .*}.* or newline|value computed is not used"
case "bar":
}
var z bool
switch {
case z:
labelname: // ERROR "missing statement after label"
case false:
}
}
func g() {
var z bool
switch {
case z:
labelname: // ERROR "label labelname defined and not used|previous definition|defined and not used"
}
switch {
case z:
labelname: ; // ERROR "label labelname already defined at LINE-5|label .*labelname.* already defined"
case false:
}
}
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