blob: 75060669b33b05c68899bcc87f5ca059022d9303 [file] [log] [blame]
// 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.
// Verify that type switch statements with duplicate cases are detected
// by the compiler.
// Does not compile.
package main
import "fmt"
func f4(e interface{}) {
switch e.(type) {
case int:
case int: // ERROR "duplicate case int in type switch"
case int64:
case error:
case error: // ERROR "duplicate case error in type switch"
case fmt.Stringer:
case fmt.Stringer: // ERROR "duplicate case fmt.Stringer in type switch"
case struct {
i int "tag1"
case struct {
i int "tag2"
case struct { // ERROR "duplicate case struct { i int .tag1. } in type switch"
i int "tag1"