| // errorcheck |
| |
| // Copyright 2019 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 various erroneous type switches are caught by the compiler. |
| // Does not compile. |
| |
| package main |
| |
| func notused(x interface{}) { |
| // The first t is in a different scope than the 2nd t; it cannot |
| // be accessed (=> declared but not used error); but it is legal |
| // to declare it. |
| switch t := 0; t := x.(type) { // ERROR "declared but not used" |
| case int: |
| _ = t // this is using the t of "t := x.(type)" |
| } |
| } |
