modernc.org/gc@v1.0.1-0.20240304020402-f0dba7c97c2b/testdata/errchk/test/fixedbugs/issue19977.go (about)

     1  // errorcheck
     2  
     3  // Copyright 2017 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  // Issue 19977: multiple error messages when type switching on an undefined
     8  
     9  package foo
    10  
    11  func Foo() {
    12  	switch x := a.(type) { // ERROR "undefined: a"
    13  	default:
    14  		_ = x
    15  	}
    16  }