| // run |
| |
| // 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. |
| |
| package main |
| |
| import "fmt" |
| |
| func set(m map[interface{}]interface{}, key interface{}) (err error) { |
| defer func() { |
| if r := recover(); r != nil { |
| err = fmt.Errorf("set failed: %v", r) |
| } |
| }() |
| m[key] = nil |
| return nil |
| } |
| |
| func del(m map[interface{}]interface{}, key interface{}) (err error) { |
| defer func() { |
| if r := recover(); r != nil { |
| err = fmt.Errorf("del failed: %v", r) |
| } |
| }() |
| delete(m, key) |
| return nil |
| } |
| |
| func main() { |
| m := make(map[interface{}]interface{}) |
| set(m, []int{1, 2, 3}) |
| set(m, "abc") // used to throw |
| del(m, []int{1, 2, 3}) |
| del(m, "abc") // used to throw |
| } |