1 // run 2 3 // Copyright 2016 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 "reflect" 10 11 func main() { 12 a := &struct{ x int }{} 13 b := &struct{ x int "" }{} 14 15 ta := reflect.TypeOf(a) 16 tb := reflect.TypeOf(b) 17 18 // Ensure cmd/compile treats absent and empty tags as equivalent. 19 a = b 20 21 // Ensure package reflect treats absent and empty tags as equivalent. 22 if !tb.AssignableTo(ta) { 23 panic("fail") 24 } 25 } 26
