go issue19977 源码
golang issue19977 代码
文件路径：/test/fixedbugs/issue19977.go
// errorcheck
// Copyright 2017 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.
// Issue 19977: multiple error messages when type switching on an undefined
package foo
func Foo() {
switch x := a.(type) { // ERROR "undefined: a|reference to undefined name .*a"
default:
_ = x
}
}
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