// setInterfaceValue sets an interface value to a concrete value through
// reflection. If the concrete value does not implement the interface, the
// setting will panic. This routine turns the panic into an error return.
// This dance avoids manually checking that the value satisfies the
// interface.
// TODO(rsc): avoid panic+recover after fixing issue 327.
func setInterfaceValue(ivalue *reflect.InterfaceValue, value reflect.Value) {
defer func() {
if e := recover(); e != nil {
error(e.(os.Error))
}
}()
ivalue.Set(value)
}
