private IRubyObject opMinus(RubyTime other) {
long time = getTimeInMillis() * 1000 + getUSec();
time -= other.getTimeInMillis() * 1000 + other.getUSec();
return RubyFloat.newFloat(getRuntime(), time / 1000000.0); // float number of seconds
}
@JRubyMethod(name = "at", meta = true)
public static IRubyObject at(ThreadContext context, IRubyObject recv, IRubyObject arg) {
Ruby runtime = context.getRuntime();
final RubyTime time;
if (arg instanceof RubyTime) {
RubyTime other = (RubyTime) arg;
time = new RubyTime(runtime, (RubyClass) recv, other.dt);
time.setUSec(other.getUSec());
} else {
time = new RubyTime(runtime, (RubyClass) recv, new DateTime(0L, getLocalTimeZone(runtime)));
long seconds = RubyNumeric.num2long(arg);
long millisecs = 0;
long microsecs = 0;
// In the case of two arguments, MRI will discard the portion of
// the first argument after a decimal point (i.e., "floor").
// However in the case of a single argument, any portion after
// the decimal point is honored.
if (arg instanceof RubyFloat || arg instanceof RubyRational) {
double dbl = RubyNumeric.num2dbl(arg);
long micro = Math.round((dbl - seconds) * 1000000);
if (dbl < 0 && micro != 0) {
micro += 1000000;
}
millisecs = micro / 1000;
microsecs = micro % 1000;
}
time.setUSec(microsecs);
time.dt = time.dt.withMillis(seconds * 1000 + millisecs);
}
time.getMetaClass().getBaseCallSites()[RubyClass.CS_IDX_INITIALIZE].call(context, recv, time);
return time;
}
public static IRubyObject parse_time(Ruby runtime, Time tm) {
RubyTime time = RubyTime.newTime(runtime, tm.getTime());
time.extend(new IRubyObject[] {runtime.getModule("TimeFormatter")});
return (time.getUSec() != 0) ? time : runtime.getNil();
}