1 // run 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 package main 8 9 import "fmt" 10 11 func set(m map[interface{}]interface{}, key interface{}) (err error) { 12 defer func() { 13 if r := recover(); r != nil { 14 err = fmt.Errorf("set failed: %v", r) 15 } 16 }() 17 m[key] = nil 18 return nil 19 } 20 21 func del(m map[interface{}]interface{}, key interface{}) (err error) { 22 defer func() { 23 if r := recover(); r != nil { 24 err = fmt.Errorf("del failed: %v", r) 25 } 26 }() 27 delete(m, key) 28 return nil 29 } 30 31 func main() { 32 m := make(map[interface{}]interface{}) 33 set(m, []int{1, 2, 3}) 34 set(m, "abc") // used to throw 35 del(m, []int{1, 2, 3}) 36 del(m, "abc") // used to throw 37 } 38
