static JSValue setNewValueFromTimeArgs(ExecState* exec, JSValue thisValue, const ArgList& args, int numArgsToUse, bool inputIsUTC)
{
if (!thisValue.isObject(&DateInstance::info))
return throwError(exec, TypeError);
DateInstance* thisDateObj = asDateInstance(thisValue);
double milli = thisDateObj->internalNumber();
if (args.isEmpty() || isnan(milli)) {
JSValue result = jsNaN(exec);
thisDateObj->setInternalValue(result);
return result;
}
double secs = floor(milli / msPerSecond);
double ms = milli - secs * msPerSecond;
GregorianDateTime t;
thisDateObj->msToGregorianDateTime(milli, inputIsUTC, t);
if (!fillStructuresUsingTimeArgs(exec, args, numArgsToUse, &ms, &t)) {
JSValue result = jsNaN(exec);
thisDateObj->setInternalValue(result);
return result;
}
JSValue result = jsNumber(exec, gregorianDateTimeToMS(t, ms, inputIsUTC));
thisDateObj->setInternalValue(result);
return result;
}
static EncodedJSValue setNewValueFromTimeArgs(ExecState* exec, int numArgsToUse, bool inputIsUTC)
{
JSValue thisValue = exec->thisValue();
if (!thisValue.inherits(DateInstance::info()))
return throwVMTypeError(exec);
DateInstance* thisDateObj = asDateInstance(thisValue);
double milli = thisDateObj->internalNumber();
VM& vm = exec->vm();
if (!exec->argumentCount() || std::isnan(milli)) {
JSValue result = jsNaN();
thisDateObj->setInternalValue(vm, result);
return JSValue::encode(result);
}
double secs = floor(milli / msPerSecond);
double ms = milli - secs * msPerSecond;
const GregorianDateTime* other = inputIsUTC
? thisDateObj->gregorianDateTimeUTC(exec)
: thisDateObj->gregorianDateTime(exec);
if (!other)
return JSValue::encode(jsNaN());
GregorianDateTime gregorianDateTime;
gregorianDateTime.copyFrom(*other);
if (!fillStructuresUsingTimeArgs(exec, numArgsToUse, &ms, &gregorianDateTime)) {
JSValue result = jsNaN();
thisDateObj->setInternalValue(vm, result);
return JSValue::encode(result);
}
JSValue result = jsNumber(gregorianDateTimeToMS(vm, gregorianDateTime, ms, inputIsUTC));
thisDateObj->setInternalValue(vm, result);
return JSValue::encode(result);
}