private static boolean doEcho(PolyglotEngine vm) {
PolyglotEngine.Value echoValue = vm.eval(GET_ECHO);
Object echo = echoValue.get();
if (echo instanceof TruffleObject) {
RLogicalVector echoVec = echoValue.as(RLogicalVector.class);
return RRuntime.fromLogical(echoVec.getDataAt(0));
} else if (echo instanceof Byte) {
return RRuntime.fromLogical((Byte) echo);
} else {
throw RInternalError.shouldNotReachHere();
}
}
