| // Copyright 2018 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. | |
| // Check that constants defined as a conversion are accepted. | |
| package main | |
| import "fmt" | |
| type Other int // Imagine this is in another package. | |
| const ( | |
| alpha Other = iota | |
| beta | |
| gamma | |
| delta | |
| ) | |
| type Conv int | |
| const ( | |
| Alpha = Conv(alpha) | |
| Beta = Conv(beta) | |
| Gamma = Conv(gamma) | |
| Delta = Conv(delta) | |
| ) | |
| func main() { | |
| ck(Alpha, "Alpha") | |
| ck(Beta, "Beta") | |
| ck(Gamma, "Gamma") | |
| ck(Delta, "Delta") | |
| ck(42, "Conv(42)") | |
| } | |
| func ck(c Conv, str string) { | |
| if fmt.Sprint(c) != str { | |
| panic("conv.go: " + str) | |
| } | |
| } |