1 // errorcheck 2 3 // Copyright 2014 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 // Issue 7214: No duplicate key error for maps with interface{} key type 8 9 package p 10 11 var _ = map[interface{}]int{2: 1, 2: 1} // ERROR "duplicate key" 12 var _ = map[interface{}]int{int(2): 1, int16(2): 1} 13 var _ = map[interface{}]int{int16(2): 1, int16(2): 1} // ERROR "duplicate key" 14 15 type S string 16 17 var _ = map[interface{}]int{"a": 1, "a": 1} // ERROR "duplicate key" 18 var _ = map[interface{}]int{"a": 1, S("a"): 1} 19 var _ = map[interface{}]int{S("a"): 1, S("a"): 1} // ERROR "duplicate key" 20 21 type I interface { 22 f() 23 } 24 25 type N int 26 27 func (N) f() {} 28 29 var _ = map[I]int{N(0): 1, N(2): 1} 30 var _ = map[I]int{N(2): 1, N(2): 1} // ERROR "duplicate key" 31
