| // run | 
 |  | 
 | // Copyright 2011 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. | 
 |  | 
 | // issue 1900 | 
 |  | 
 | package main | 
 |  | 
 | func getArgs(data map[string]interface{}, keys ...string) map[string]string { | 
 |        ret := map[string]string{} | 
 |        var ok bool | 
 |        for _, k := range keys { | 
 |                ret[k], ok = data[k].(string) | 
 |                if !ok {} | 
 |        } | 
 |        return ret | 
 | } | 
 |  | 
 | func main() { | 
 | 	x := getArgs(map[string]interface{}{"x":"y"}, "x") | 
 | 	if x["x"] != "y" { | 
 | 		println("BUG bug343", x) | 
 | 	} | 
 | } | 
 | 	 | 
 |  | 
 | /* | 
 | typecheck [1008592b0] | 
 | .   INDREG a(1) l(15) x(24) tc(2) runtime.ret G0 string | 
 | bug343.go:15: internal compiler error: typecheck INDREG | 
 | */ |