| /* |
| * Copyright (C) 2009 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "DateComponents.h" |
| |
| #include "PlatformString.h" |
| #include <limits.h> |
| #include <wtf/ASCIICType.h> |
| #include <wtf/DateMath.h> |
| #include <wtf/MathExtras.h> |
| |
| using namespace std; |
| |
| namespace WebCore { |
| |
| // HTML5 uses ISO-8601 format with year >= 1. Gregorian calendar started in |
| // 1582. However, we need to support 0001-01-01 in Gregorian calendar rule. |
| static const int minimumYear = 1; |
| // Date in ECMAScript can't represent dates later than 275760-09-13T00:00Z. |
| // So, we have the same upper limit in HTML5 dates. |
| static const int maximumYear = 275760; |
| static const int maximumMonthInMaximumYear = 8; // This is September, since months are 0 based. |
| static const int maximumDayInMaximumMonth = 13; |
| static const int maximumWeekInMaximumYear = 37; // The week of 275760-09-13 |
| |
| static const int daysInMonth[12] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; |
| |
| static bool isLeapYear(int year) |
| { |
| if (year % 4) |
| return false; |
| if (!(year % 400)) |
| return true; |
| if (!(year % 100)) |
| return false; |
| return true; |
| } |
| |
| // 'month' is 0-based. |
| static int maxDayOfMonth(int year, int month) |
| { |
| if (month != 1) // February? |
| return daysInMonth[month]; |
| return isLeapYear(year) ? 29 : 28; |
| } |
| |
| // 'month' is 0-based. |
| static int dayOfWeek(int year, int month, int day) |
| { |
| int shiftedMonth = month + 2; |
| // 2:January, 3:Feburuary, 4:March, ... |
| |
| // Zeller's congruence |
| if (shiftedMonth <= 3) { |
| shiftedMonth += 12; |
| year--; |
| } |
| // 4:March, ..., 14:January, 15:February |
| |
| int highYear = year / 100; |
| int lowYear = year % 100; |
| // We add 6 to make the result Sunday-origin. |
| int result = (day + 13 * shiftedMonth / 5 + lowYear + lowYear / 4 + highYear / 4 + 5 * highYear + 6) % 7; |
| return result; |
| } |
| |
| int DateComponents::maxWeekNumberInYear() const |
| { |
| int day = dayOfWeek(m_year, 0, 1); // January 1. |
| return day == Thursday || (day == Wednesday && isLeapYear(m_year)) ? 53 : 52; |
| } |
| |
| static unsigned countDigits(const UChar* src, unsigned length, unsigned start) |
| { |
| unsigned index = start; |
| for (; index < length; ++index) { |
| if (!isASCIIDigit(src[index])) |
| break; |
| } |
| return index - start; |
| } |
| |
| // Very strict integer parser. Do not allow leading or trailing whitespace unlike charactersToIntStrict(). |
| static bool toInt(const UChar* src, unsigned length, unsigned parseStart, unsigned parseLength, int& out) |
| { |
| if (parseStart + parseLength > length || parseLength <= 0) |
| return false; |
| int value = 0; |
| const UChar* current = src + parseStart; |
| const UChar* end = current + parseLength; |
| |
| // We don't need to handle negative numbers for ISO 8601. |
| for (; current < end; ++current) { |
| if (!isASCIIDigit(*current)) |
| return false; |
| int digit = *current - '0'; |
| if (value > (INT_MAX - digit) / 10) // Check for overflow. |
| return false; |
| value = value * 10 + digit; |
| } |
| out = value; |
| return true; |
| } |
| |
| bool DateComponents::parseYear(const UChar* src, unsigned length, unsigned start, unsigned& end) |
| { |
| unsigned digitsLength = countDigits(src, length, start); |
| // Needs at least 4 digits according to the standard. |
| if (digitsLength < 4) |
| return false; |
| int year; |
| if (!toInt(src, length, start, digitsLength, year)) |
| return false; |
| if (year < minimumYear || year > maximumYear) |
| return false; |
| m_year = year; |
| end = start + digitsLength; |
| return true; |
| } |
| |
| static bool withinHTMLDateLimits(int year, int month) |
| { |
| if (year < minimumYear) |
| return false; |
| if (year < maximumYear) |
| return true; |
| return month <= maximumMonthInMaximumYear; |
| } |
| |
| static bool withinHTMLDateLimits(int year, int month, int monthDay) |
| { |
| if (year < minimumYear) |
| return false; |
| if (year < maximumYear) |
| return true; |
| if (month < maximumMonthInMaximumYear) |
| return true; |
| return monthDay <= maximumDayInMaximumMonth; |
| } |
| |
| static bool withinHTMLDateLimits(int year, int month, int monthDay, int hour, int minute, int second, int millisecond) |
| { |
| if (year < minimumYear) |
| return false; |
| if (year < maximumYear) |
| return true; |
| if (month < maximumMonthInMaximumYear) |
| return true; |
| if (monthDay < maximumDayInMaximumMonth) |
| return true; |
| if (monthDay > maximumDayInMaximumMonth) |
| return false; |
| // (year, month, monthDay) = (maximumYear, maximumMonthInMaximumYear, maximumDayInMaximumMonth) |
| return !hour && !minute && !second && !millisecond; |
| } |
| |
| bool DateComponents::addDay(int dayDiff) |
| { |
| ASSERT(m_monthDay); |
| |
| int day = m_monthDay + dayDiff; |
| if (day > maxDayOfMonth(m_year, m_month)) { |
| day = m_monthDay; |
| int year = m_year; |
| int month = m_month; |
| int maxDay = maxDayOfMonth(year, month); |
| for (; dayDiff > 0; --dayDiff) { |
| ++day; |
| if (day > maxDay) { |
| day = 1; |
| ++month; |
| if (month >= 12) { // month is 0-origin. |
| month = 0; |
| ++year; |
| } |
| maxDay = maxDayOfMonth(year, month); |
| } |
| } |
| if (!withinHTMLDateLimits(year, month, day)) |
| return false; |
| m_year = year; |
| m_month = month; |
| } else if (day < 1) { |
| int month = m_month; |
| int year = m_year; |
| day = m_monthDay; |
| for (; dayDiff < 0; ++dayDiff) { |
| --day; |
| if (day < 1) { |
| --month; |
| if (month < 0) { |
| month = 11; |
| --year; |
| } |
| day = maxDayOfMonth(year, month); |
| } |
| } |
| if (!withinHTMLDateLimits(year, month, day)) |
| return false; |
| m_year = year; |
| m_month = month; |
| } else { |
| if (!withinHTMLDateLimits(m_year, m_month, day)) |
| return false; |
| } |
| m_monthDay = day; |
| return true; |
| } |
| |
| bool DateComponents::addMinute(int minute) |
| { |
| // This function is used to adjust timezone offset. So m_year, m_month, |
| // m_monthDay have values between the lower and higher limits. |
| ASSERT(withinHTMLDateLimits(m_year, m_month, m_monthDay)); |
| |
| int carry; |
| // minute can be negative or greater than 59. |
| minute += m_minute; |
| if (minute > 59) { |
| carry = minute / 60; |
| minute = minute % 60; |
| } else if (m_minute < 0) { |
| carry = (59 - m_minute) / 60; |
| minute += carry * 60; |
| carry = -carry; |
| ASSERT(minute >= 0 && minute <= 59); |
| } else { |
| if (!withinHTMLDateLimits(m_year, m_month, m_monthDay, m_hour, minute, m_second, m_millisecond)) |
| return false; |
| m_minute = minute; |
| return true; |
| } |
| |
| int hour = m_hour + carry; |
| if (hour > 23) { |
| carry = hour / 24; |
| hour = hour % 24; |
| } else if (hour < 0) { |
| carry = (23 - hour) / 24; |
| hour += carry * 24; |
| carry = -carry; |
| ASSERT(hour >= 0 && hour <= 23); |
| } else { |
| if (!withinHTMLDateLimits(m_year, m_month, m_monthDay, hour, minute, m_second, m_millisecond)) |
| return false; |
| m_minute = minute; |
| m_hour = hour; |
| return true; |
| } |
| if (!addDay(carry)) |
| return false; |
| if (!withinHTMLDateLimits(m_year, m_month, m_monthDay, hour, minute, m_second, m_millisecond)) |
| return false; |
| m_minute = minute; |
| m_hour = hour; |
| return true; |
| } |
| |
| // Parses a timezone part, and adjust year, month, monthDay, hour, minute, second, millisecond. |
| bool DateComponents::parseTimeZone(const UChar* src, unsigned length, unsigned start, unsigned& end) |
| { |
| if (start >= length) |
| return false; |
| unsigned index = start; |
| if (src[index] == 'Z') { |
| end = index + 1; |
| return true; |
| } |
| |
| bool minus; |
| if (src[index] == '+') |
| minus = false; |
| else if (src[index] == '-') |
| minus = true; |
| else |
| return false; |
| ++index; |
| |
| int hour; |
| int minute; |
| if (!toInt(src, length, index, 2, hour) || hour < 0 || hour > 23) |
| return false; |
| index += 2; |
| |
| if (index >= length || src[index] != ':') |
| return false; |
| ++index; |
| |
| if (!toInt(src, length, index, 2, minute) || minute < 0 || minute > 59) |
| return false; |
| index += 2; |
| |
| if (minus) { |
| hour = -hour; |
| minute = -minute; |
| } |
| |
| // Subtract the timezone offset. |
| if (!addMinute(-(hour * 60 + minute))) |
| return false; |
| end = index; |
| return true; |
| } |
| |
| bool DateComponents::parseMonth(const UChar* src, unsigned length, unsigned start, unsigned& end) |
| { |
| ASSERT(src); |
| unsigned index; |
| if (!parseYear(src, length, start, index)) |
| return false; |
| if (index >= length || src[index] != '-') |
| return false; |
| ++index; |
| |
| int month; |
| if (!toInt(src, length, index, 2, month) || month < 1 || month > 12) |
| return false; |
| --month; |
| if (!withinHTMLDateLimits(m_year, month)) |
| return false; |
| m_month = month; |
| end = index + 2; |
| m_type = Month; |
| return true; |
| } |
| |
| bool DateComponents::parseDate(const UChar* src, unsigned length, unsigned start, unsigned& end) |
| { |
| ASSERT(src); |
| unsigned index; |
| if (!parseMonth(src, length, start, index)) |
| return false; |
| // '-' and 2-digits are needed. |
| if (index + 2 >= length) |
| return false; |
| if (src[index] != '-') |
| return false; |
| ++index; |
| |
| int day; |
| if (!toInt(src, length, index, 2, day) || day < 1 || day > maxDayOfMonth(m_year, m_month)) |
| return false; |
| if (!withinHTMLDateLimits(m_year, m_month, day)) |
| return false; |
| m_monthDay = day; |
| end = index + 2; |
| m_type = Date; |
| return true; |
| } |
| |
| bool DateComponents::parseWeek(const UChar* src, unsigned length, unsigned start, unsigned& end) |
| { |
| ASSERT(src); |
| unsigned index; |
| if (!parseYear(src, length, start, index)) |
| return false; |
| |
| // 4 characters ('-' 'W' digit digit) are needed. |
| if (index + 3 >= length) |
| return false; |
| if (src[index] != '-') |
| return false; |
| ++index; |
| if (src[index] != 'W') |
| return false; |
| ++index; |
| |
| int week; |
| if (!toInt(src, length, index, 2, week) || week < 1 || week > maxWeekNumberInYear()) |
| return false; |
| if (m_year == maximumYear && week > maximumWeekInMaximumYear) |
| return false; |
| m_week = week; |
| end = index + 2; |
| m_type = Week; |
| return true; |
| } |
| |
| bool DateComponents::parseTime(const UChar* src, unsigned length, unsigned start, unsigned& end) |
| { |
| ASSERT(src); |
| int hour; |
| if (!toInt(src, length, start, 2, hour) || hour < 0 || hour > 23) |
| return false; |
| unsigned index = start + 2; |
| if (index >= length) |
| return false; |
| if (src[index] != ':') |
| return false; |
| ++index; |
| |
| int minute; |
| if (!toInt(src, length, index, 2, minute) || minute < 0 || minute > 59) |
| return false; |
| index += 2; |
| |
| int second = 0; |
| int millisecond = 0; |
| // Optional second part. |
| // Do not return with false because the part is optional. |
| if (index + 2 < length && src[index] == ':') { |
| if (toInt(src, length, index + 1, 2, second) && second >= 0 && second <= 59) { |
| index += 3; |
| |
| // Optional fractional second part. |
| if (index < length && src[index] == '.') { |
| unsigned digitsLength = countDigits(src, length, index + 1); |
| if (digitsLength > 0) { |
| ++index; |
| bool ok; |
| if (digitsLength == 1) { |
| ok = toInt(src, length, index, 1, millisecond); |
| millisecond *= 100; |
| } else if (digitsLength == 2) { |
| ok = toInt(src, length, index, 2, millisecond); |
| millisecond *= 10; |
| } else // digitsLength >= 3 |
| ok = toInt(src, length, index, 3, millisecond); |
| ASSERT(ok); |
| index += digitsLength; |
| } |
| } |
| } |
| } |
| m_hour = hour; |
| m_minute = minute; |
| m_second = second; |
| m_millisecond = millisecond; |
| end = index; |
| m_type = Time; |
| return true; |
| } |
| |
| bool DateComponents::parseDateTimeLocal(const UChar* src, unsigned length, unsigned start, unsigned& end) |
| { |
| ASSERT(src); |
| unsigned index; |
| if (!parseDate(src, length, start, index)) |
| return false; |
| if (index >= length) |
| return false; |
| if (src[index] != 'T') |
| return false; |
| ++index; |
| if (!parseTime(src, length, index, end)) |
| return false; |
| if (!withinHTMLDateLimits(m_year, m_month, m_monthDay, m_hour, m_minute, m_second, m_millisecond)) |
| return false; |
| m_type = DateTimeLocal; |
| return true; |
| } |
| |
| bool DateComponents::parseDateTime(const UChar* src, unsigned length, unsigned start, unsigned& end) |
| { |
| ASSERT(src); |
| unsigned index; |
| if (!parseDate(src, length, start, index)) |
| return false; |
| if (index >= length) |
| return false; |
| if (src[index] != 'T') |
| return false; |
| ++index; |
| if (!parseTime(src, length, index, index)) |
| return false; |
| if (!parseTimeZone(src, length, index, end)) |
| return false; |
| if (!withinHTMLDateLimits(m_year, m_month, m_monthDay, m_hour, m_minute, m_second, m_millisecond)) |
| return false; |
| m_type = DateTime; |
| return true; |
| } |
| |
| static inline double positiveFmod(double value, double divider) |
| { |
| double remainder = fmod(value, divider); |
| return remainder < 0 ? remainder + divider : remainder; |
| } |
| |
| void DateComponents::setMillisecondsSinceMidnightInternal(double msInDay) |
| { |
| ASSERT(msInDay >= 0 && msInDay < msPerDay); |
| m_millisecond = static_cast<int>(fmod(msInDay, msPerSecond)); |
| double value = floor(msInDay / msPerSecond); |
| m_second = static_cast<int>(fmod(value, secondsPerMinute)); |
| value = floor(value / secondsPerMinute); |
| m_minute = static_cast<int>(fmod(value, minutesPerHour)); |
| m_hour = static_cast<int>(value / minutesPerHour); |
| } |
| |
| bool DateComponents::setMillisecondsSinceEpochForDateInternal(double ms) |
| { |
| m_year = msToYear(ms); |
| int yearDay = dayInYear(ms, m_year); |
| m_month = monthFromDayInYear(yearDay, isLeapYear(m_year)); |
| m_monthDay = dayInMonthFromDayInYear(yearDay, isLeapYear(m_year)); |
| return true; |
| } |
| |
| bool DateComponents::setMillisecondsSinceEpochForDate(double ms) |
| { |
| m_type = Invalid; |
| if (!isfinite(ms)) |
| return false; |
| if (!setMillisecondsSinceEpochForDateInternal(round(ms))) |
| return false; |
| if (!withinHTMLDateLimits(m_year, m_month, m_monthDay)) |
| return false; |
| m_type = Date; |
| return true; |
| } |
| |
| bool DateComponents::setMillisecondsSinceEpochForDateTime(double ms) |
| { |
| m_type = Invalid; |
| if (!isfinite(ms)) |
| return false; |
| ms = round(ms); |
| setMillisecondsSinceMidnightInternal(positiveFmod(ms, msPerDay)); |
| if (!setMillisecondsSinceEpochForDateInternal(ms)) |
| return false; |
| if (!withinHTMLDateLimits(m_year, m_month, m_monthDay, m_hour, m_minute, m_second, m_millisecond)) |
| return false; |
| m_type = DateTime; |
| return true; |
| } |
| |
| bool DateComponents::setMillisecondsSinceEpochForDateTimeLocal(double ms) |
| { |
| // Internal representation of DateTimeLocal is the same as DateTime except m_type. |
| if (!setMillisecondsSinceEpochForDateTime(ms)) |
| return false; |
| m_type = DateTimeLocal; |
| return true; |
| } |
| |
| bool DateComponents::setMillisecondsSinceEpochForMonth(double ms) |
| { |
| m_type = Invalid; |
| if (!isfinite(ms)) |
| return false; |
| if (!setMillisecondsSinceEpochForDateInternal(round(ms))) |
| return false; |
| if (!withinHTMLDateLimits(m_year, m_month)) |
| return false; |
| m_type = Month; |
| return true; |
| } |
| |
| bool DateComponents::setMillisecondsSinceMidnight(double ms) |
| { |
| m_type = Invalid; |
| if (!isfinite(ms)) |
| return false; |
| setMillisecondsSinceMidnightInternal(positiveFmod(round(ms), msPerDay)); |
| m_type = Time; |
| return true; |
| } |
| |
| bool DateComponents::setMonthsSinceEpoch(double months) |
| { |
| if (!isfinite(months)) |
| return false; |
| months = round(months); |
| double doubleMonth = positiveFmod(months, 12); |
| double doubleYear = 1970 + (months - doubleMonth) / 12; |
| if (doubleYear < minimumYear || maximumYear < doubleYear) |
| return false; |
| int year = static_cast<int>(doubleYear); |
| int month = static_cast<int>(doubleMonth); |
| if (!withinHTMLDateLimits(year, month)) |
| return false; |
| m_year = year; |
| m_month = month; |
| m_type = Month; |
| return true; |
| } |
| |
| // Offset from January 1st to Monday of the ISO 8601's first week. |
| // ex. If January 1st is Friday, such Monday is 3 days later. Returns 3. |
| static int offsetTo1stWeekStart(int year) |
| { |
| int offsetTo1stWeekStart = 1 - dayOfWeek(year, 0, 1); |
| if (offsetTo1stWeekStart <= -4) |
| offsetTo1stWeekStart += 7; |
| return offsetTo1stWeekStart; |
| } |
| |
| bool DateComponents::setMillisecondsSinceEpochForWeek(double ms) |
| { |
| m_type = Invalid; |
| if (!isfinite(ms)) |
| return false; |
| ms = round(ms); |
| |
| m_year = msToYear(ms); |
| if (m_year < minimumYear || m_year > maximumYear) |
| return false; |
| |
| int yearDay = dayInYear(ms, m_year); |
| int offset = offsetTo1stWeekStart(m_year); |
| if (yearDay < offset) { |
| // The day belongs to the last week of the previous year. |
| m_year--; |
| if (m_year <= minimumYear) |
| return false; |
| m_week = maxWeekNumberInYear(); |
| } else { |
| m_week = ((yearDay - offset) / 7) + 1; |
| if (m_week > maxWeekNumberInYear()) { |
| m_year++; |
| m_week = 1; |
| } |
| if (m_year > maximumYear || (m_year == maximumYear && m_week > maximumWeekInMaximumYear)) |
| return false; |
| } |
| m_type = Week; |
| return true; |
| } |
| |
| double DateComponents::millisecondsSinceEpochForTime() const |
| { |
| ASSERT(m_type == Time || m_type == DateTime || m_type == DateTimeLocal); |
| return ((m_hour * minutesPerHour + m_minute) * secondsPerMinute + m_second) * msPerSecond + m_millisecond; |
| } |
| |
| double DateComponents::millisecondsSinceEpoch() const |
| { |
| switch (m_type) { |
| case Date: |
| return dateToDaysFrom1970(m_year, m_month, m_monthDay) * msPerDay; |
| case DateTime: |
| case DateTimeLocal: |
| return dateToDaysFrom1970(m_year, m_month, m_monthDay) * msPerDay + millisecondsSinceEpochForTime(); |
| case Month: |
| return dateToDaysFrom1970(m_year, m_month, 1) * msPerDay; |
| case Time: |
| return millisecondsSinceEpochForTime(); |
| case Week: |
| return (dateToDaysFrom1970(m_year, 0, 1) + offsetTo1stWeekStart(m_year) + (m_week - 1) * 7) * msPerDay; |
| case Invalid: |
| break; |
| } |
| ASSERT_NOT_REACHED(); |
| return invalidMilliseconds(); |
| } |
| |
| double DateComponents::monthsSinceEpoch() const |
| { |
| ASSERT(m_type == Month); |
| return (m_year - 1970) * 12 + m_month; |
| } |
| |
| String DateComponents::toStringForTime(SecondFormat format) const |
| { |
| ASSERT(m_type == DateTime || m_type == DateTimeLocal || m_type == Time); |
| SecondFormat effectiveFormat = format; |
| if (m_millisecond) |
| effectiveFormat = Millisecond; |
| else if (format == None && m_second) |
| effectiveFormat = Second; |
| |
| switch (effectiveFormat) { |
| default: |
| ASSERT_NOT_REACHED(); |
| // Fallback to None. |
| case None: |
| return String::format("%02d:%02d", m_hour, m_minute); |
| case Second: |
| return String::format("%02d:%02d:%02d", m_hour, m_minute, m_second); |
| case Millisecond: |
| return String::format("%02d:%02d:%02d.%03d", m_hour, m_minute, m_second, m_millisecond); |
| } |
| } |
| |
| String DateComponents::toString(SecondFormat format) const |
| { |
| switch (m_type) { |
| case Date: |
| return String::format("%04d-%02d-%02d", m_year, m_month + 1, m_monthDay); |
| case DateTime: |
| return String::format("%04d-%02d-%02dT", m_year, m_month + 1, m_monthDay) |
| + toStringForTime(format) + String("Z"); |
| case DateTimeLocal: |
| return String::format("%04d-%02d-%02dT", m_year, m_month + 1, m_monthDay) |
| + toStringForTime(format); |
| case Month: |
| return String::format("%04d-%02d", m_year, m_month + 1); |
| case Time: |
| return toStringForTime(format); |
| case Week: |
| return String::format("%04d-W%02d", m_year, m_week); |
| case Invalid: |
| break; |
| } |
| ASSERT_NOT_REACHED(); |
| return String("(Invalid DateComponents)"); |
| } |
| |
| } // namespace WebCore |
