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;
}
JSValue JSC_HOST_CALL dateProtoFuncSetYear(ExecState* exec, JSObject*, JSValue thisValue, const ArgList& args)
{
if (!thisValue.isObject(&DateInstance::info))
return throwError(exec, TypeError);
const bool utc = false;
DateInstance* thisDateObj = asDateInstance(thisValue);
if (args.isEmpty()) {
JSValue result = jsNaN(exec);
thisDateObj->setInternalValue(result);
return result;
}
double milli = thisDateObj->internalNumber();
double ms = 0;
GregorianDateTime t;
if (isnan(milli))
// Based on ECMA 262 B.2.5 (setYear)
// the time must be reset to +0 if it is NaN.
thisDateObj->msToGregorianDateTime(0, true, t);
else {
double secs = floor(milli / msPerSecond);
ms = milli - secs * msPerSecond;
thisDateObj->msToGregorianDateTime(milli, utc, t);
}
bool ok = true;
int32_t year = args.at(0).toInt32(exec, ok);
if (!ok) {
JSValue result = jsNaN(exec);
thisDateObj->setInternalValue(result);
return result;
}
t.year = (year > 99 || year < 0) ? year - 1900 : year;
JSValue result = jsNumber(exec, gregorianDateTimeToMS(t, ms, utc));
thisDateObj->setInternalValue(result);
return result;
}
static JSValue setNewValueFromDateArgs(ExecState* exec, JSValue thisValue, const ArgList& args, int numArgsToUse, bool inputIsUTC)
{
if (!thisValue.isObject(&DateInstance::info))
return throwError(exec, TypeError);
DateInstance* thisDateObj = asDateInstance(thisValue);
if (args.isEmpty()) {
JSValue result = jsNaN(exec);
thisDateObj->setInternalValue(result);
return result;
}
double milli = thisDateObj->internalNumber();
double ms = 0;
GregorianDateTime t;
if (numArgsToUse == 3 && isnan(milli))
// Based on ECMA 262 15.9.5.40 - .41 (set[UTC]FullYear)
// the time must be reset to +0 if it is NaN.
thisDateObj->msToGregorianDateTime(0, true, t);
else {
double secs = floor(milli / msPerSecond);
ms = milli - secs * msPerSecond;
thisDateObj->msToGregorianDateTime(milli, inputIsUTC, t);
}
if (!fillStructuresUsingDateArgs(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;
}
JSValue JSC_HOST_CALL dateProtoFuncGetTimezoneOffset(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&)
{
if (!thisValue.isObject(&DateInstance::info))
return throwError(exec, TypeError);
const bool utc = false;
DateInstance* thisDateObj = asDateInstance(thisValue);
double milli = thisDateObj->internalNumber();
if (isnan(milli))
return jsNaN(exec);
GregorianDateTime t;
thisDateObj->msToGregorianDateTime(milli, utc, t);
return jsNumber(exec, -gmtoffset(t) / minutesPerHour);
}
JSValue JSC_HOST_CALL dateProtoFuncGetUTCSeconds(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&)
{
if (!thisValue.isObject(&DateInstance::info))
return throwError(exec, TypeError);
const bool utc = true;
DateInstance* thisDateObj = asDateInstance(thisValue);
double milli = thisDateObj->internalNumber();
if (isnan(milli))
return jsNaN(exec);
GregorianDateTime t;
thisDateObj->msToGregorianDateTime(milli, utc, t);
return jsNumber(exec, t.second);
}
JSValue JSC_HOST_CALL dateProtoFuncToGMTString(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&)
{
if (!thisValue.isObject(&DateInstance::info))
return throwError(exec, TypeError);
const bool utc = true;
DateInstance* thisDateObj = asDateInstance(thisValue);
double milli = thisDateObj->internalNumber();
if (isnan(milli))
return jsNontrivialString(exec, "Invalid Date");
GregorianDateTime t;
thisDateObj->msToGregorianDateTime(milli, utc, t);
return jsNontrivialString(exec, formatDateUTCVariant(t) + " " + formatTime(t, utc));
}
JSValue JSC_HOST_CALL dateProtoFuncGetYear(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&)
{
if (!thisValue.isObject(&DateInstance::info))
return throwError(exec, TypeError);
const bool utc = false;
DateInstance* thisDateObj = asDateInstance(thisValue);
double milli = thisDateObj->internalNumber();
if (isnan(milli))
return jsNaN(exec);
GregorianDateTime t;
thisDateObj->msToGregorianDateTime(milli, utc, t);
// NOTE: IE returns the full year even in getYear.
return jsNumber(exec, t.year);
}
JSValue JSC_HOST_CALL dateProtoFuncToISOString(ExecState* exec, JSObject*, JSValue thisValue, const ArgList&)
{
if (!thisValue.isObject(&DateInstance::info))
return throwError(exec, TypeError);
const bool utc = true;
DateInstance* thisDateObj = asDateInstance(thisValue);
double milli = thisDateObj->internalNumber();
if (!isfinite(milli))
return jsNontrivialString(exec, "Invalid Date");
GregorianDateTime t;
thisDateObj->msToGregorianDateTime(milli, utc, t);
// Maximum amount of space we need in buffer: 6 (max. digits in year) + 2 * 5 (2 characters each for month, day, hour, minute, second)
// 6 for formatting and one for null termination = 23. We add one extra character to allow us to force null termination.
char buffer[24];
snprintf(buffer, sizeof(buffer) - 1, "%04d-%02d-%02dT%02d:%02d:%02dZ", 1900 + t.year, t.month + 1, t.monthDay, t.hour, t.minute, t.second);
buffer[sizeof(buffer) - 1] = 0;
return jsNontrivialString(exec, buffer);
}
