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8267587: Update java.util to use enhanced switch

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Reviewed-by: iris
This commit is contained in:
Tagir F. Valeev 2021-05-31 08:48:38 +00:00
parent 35916ed57f
commit ab5a7ff230
15 changed files with 556 additions and 776 deletions

84
src/java.base/share/classes/java/util/Calendar.java

@ -1477,7 +1477,6 @@ public abstract class Calendar implements Serializable, Cloneable, Comparable<Ca
if (zone == null) {
zone = defaultTimeZone(locale);
}
Calendar cal;
if (type == null) {
type = locale.getUnicodeLocaleType("ca");
}
@ -1489,28 +1488,24 @@ public abstract class Calendar implements Serializable, Cloneable, Comparable<Ca
type = "gregory";
}
}
switch (type) {
case "gregory":
cal = new GregorianCalendar(zone, locale, true);
break;
case "iso8601":
GregorianCalendar gcal = new GregorianCalendar(zone, locale, true);
// make gcal a proleptic Gregorian
gcal.setGregorianChange(new Date(Long.MIN_VALUE));
// and week definition to be compatible with ISO 8601
setWeekDefinition(MONDAY, 4);
cal = gcal;
break;
case "buddhist":
cal = new BuddhistCalendar(zone, locale);
cal.clear();
break;
case "japanese":
cal = new JapaneseImperialCalendar(zone, locale, true);
break;
default:
throw new IllegalArgumentException("unknown calendar type: " + type);
}
final Calendar cal = switch (type) {
case "gregory" -> new GregorianCalendar(zone, locale, true);
case "iso8601" -> {
GregorianCalendar gcal = new GregorianCalendar(zone, locale, true);
// make gcal a proleptic Gregorian
gcal.setGregorianChange(new Date(Long.MIN_VALUE));
// and week definition to be compatible with ISO 8601
setWeekDefinition(MONDAY, 4);
yield gcal;
}
case "buddhist" -> {
var buddhistCalendar = new BuddhistCalendar(zone, locale);
buddhistCalendar.clear();
yield buddhistCalendar;
}
case "japanese" -> new JapaneseImperialCalendar(zone, locale, true);
default -> throw new IllegalArgumentException("unknown calendar type: " + type);
};
cal.setLenient(lenient);
if (firstDayOfWeek != 0) {
cal.setFirstDayOfWeek(firstDayOfWeek);
@ -1705,17 +1700,12 @@ public abstract class Calendar implements Serializable, Cloneable, Comparable<Ca
if (aLocale.hasExtensions()) {
String caltype = aLocale.getUnicodeLocaleType("ca");
if (caltype != null) {
switch (caltype) {
case "buddhist":
cal = new BuddhistCalendar(zone, aLocale);
break;
case "japanese":
cal = new JapaneseImperialCalendar(zone, aLocale);
break;
case "gregory":
cal = new GregorianCalendar(zone, aLocale);
break;
}
cal = switch (caltype) {
case "buddhist" -> new BuddhistCalendar(zone, aLocale);
case "japanese" -> new JapaneseImperialCalendar(zone, aLocale);
case "gregory" -> new GregorianCalendar(zone, aLocale);
default -> null;
};
}
}
if (cal == null) {
@ -2267,25 +2257,13 @@ public abstract class Calendar implements Serializable, Cloneable, Comparable<Ca
return null;
}
String[] strings = null;
switch (field) {
case ERA:
strings = symbols.getEras();
break;
case MONTH:
strings = (baseStyle == LONG) ? symbols.getMonths() : symbols.getShortMonths();
break;
case DAY_OF_WEEK:
strings = (baseStyle == LONG) ? symbols.getWeekdays() : symbols.getShortWeekdays();
break;
case AM_PM:
strings = symbols.getAmPmStrings();
break;
}
return strings;
return switch (field) {
case ERA -> symbols.getEras();
case MONTH -> (baseStyle == LONG) ? symbols.getMonths() : symbols.getShortMonths();
case DAY_OF_WEEK -> (baseStyle == LONG) ? symbols.getWeekdays() : symbols.getShortWeekdays();
case AM_PM -> symbols.getAmPmStrings();
default -> null;
};
}
/**

115
src/java.base/share/classes/java/util/Formatter.java

@ -2674,27 +2674,26 @@ public final class Formatter implements Closeable, Flushable {
int index = fs.index();
try {
switch (index) {
case -2: // fixed string, "%n", or "%%"
fs.print(null, l);
break;
case -1: // relative index
if (last < 0 || (args != null && last > args.length - 1))
throw new MissingFormatArgumentException(fs.toString());
fs.print((args == null ? null : args[last]), l);
break;
case 0: // ordinary index
lasto++;
last = lasto;
if (args != null && lasto > args.length - 1)
throw new MissingFormatArgumentException(fs.toString());
fs.print((args == null ? null : args[lasto]), l);
break;
default: // explicit index
last = index - 1;
if (args != null && last > args.length - 1)
throw new MissingFormatArgumentException(fs.toString());
fs.print((args == null ? null : args[last]), l);
break;
case -2 -> // fixed string, "%n", or "%%"
fs.print(null, l);
case -1 -> { // relative index
if (last < 0 || (args != null && last > args.length - 1))
throw new MissingFormatArgumentException(fs.toString());
fs.print((args == null ? null : args[last]), l);
}
case 0 -> { // ordinary index
lasto++;
last = lasto;
if (args != null && lasto > args.length - 1)
throw new MissingFormatArgumentException(fs.toString());
fs.print((args == null ? null : args[lasto]), l);
}
default -> { // explicit index
last = index - 1;
if (args != null && last > args.length - 1)
throw new MissingFormatArgumentException(fs.toString());
fs.print((args == null ? null : args[last]), l);
}
}
} catch (IOException x) {
lastException = x;
@ -4111,15 +4110,9 @@ public final class Formatter implements Closeable, Flushable {
int i = t.get(Calendar.YEAR);
int size = 2;
switch (c) {
case DateTime.CENTURY:
i /= 100;
break;
case DateTime.YEAR_2:
i %= 100;
break;
case DateTime.YEAR_4:
size = 4;
break;
case DateTime.CENTURY -> i /= 100;
case DateTime.YEAR_2 -> i %= 100;
case DateTime.YEAR_4 -> size = 4;
}
Flags flags = Flags.ZERO_PAD;
sb.append(localizedMagnitude(null, i, flags, size, l));
@ -4352,15 +4345,9 @@ public final class Formatter implements Closeable, Flushable {
int i = t.get(ChronoField.YEAR_OF_ERA);
int size = 2;
switch (c) {
case DateTime.CENTURY:
i /= 100;
break;
case DateTime.YEAR_2:
i %= 100;
break;
case DateTime.YEAR_4:
size = 4;
break;
case DateTime.CENTURY -> i /= 100;
case DateTime.YEAR_2 -> i %= 100;
case DateTime.YEAR_4 -> size = 4;
}
Flags flags = Flags.ZERO_PAD;
sb.append(localizedMagnitude(null, i, flags, size, l));
@ -4836,46 +4823,16 @@ public final class Formatter implements Closeable, Flushable {
static final char ISO_STANDARD_DATE = 'F'; // (%Y-%m-%d)
static boolean isValid(char c) {
switch (c) {
case HOUR_OF_DAY_0:
case HOUR_0:
case HOUR_OF_DAY:
case HOUR:
case MINUTE:
case NANOSECOND:
case MILLISECOND:
case MILLISECOND_SINCE_EPOCH:
case AM_PM:
case SECONDS_SINCE_EPOCH:
case SECOND:
case TIME:
case ZONE_NUMERIC:
case ZONE:
// Date
case NAME_OF_DAY_ABBREV:
case NAME_OF_DAY:
case NAME_OF_MONTH_ABBREV:
case NAME_OF_MONTH:
case CENTURY:
case DAY_OF_MONTH_0:
case DAY_OF_MONTH:
case NAME_OF_MONTH_ABBREV_X:
case DAY_OF_YEAR:
case MONTH:
case YEAR_2:
case YEAR_4:
// Composites
case TIME_12_HOUR:
case TIME_24_HOUR:
case DATE_TIME:
case DATE:
case ISO_STANDARD_DATE:
return true;
default:
return false;
}
return switch (c) {
case HOUR_OF_DAY_0, HOUR_0, HOUR_OF_DAY, HOUR, MINUTE, NANOSECOND, MILLISECOND, MILLISECOND_SINCE_EPOCH,
AM_PM, SECONDS_SINCE_EPOCH, SECOND, TIME, ZONE_NUMERIC, ZONE -> true;
// Date
case NAME_OF_DAY_ABBREV, NAME_OF_DAY, NAME_OF_MONTH_ABBREV, NAME_OF_MONTH, CENTURY, DAY_OF_MONTH_0,
DAY_OF_MONTH, NAME_OF_MONTH_ABBREV_X, DAY_OF_YEAR, MONTH, YEAR_2, YEAR_4 -> true;
// Composites
case TIME_12_HOUR, TIME_24_HOUR, DATE_TIME, DATE, ISO_STANDARD_DATE -> true;
default -> false;
};
}
}
}

98
src/java.base/share/classes/java/util/GregorianCalendar.java

@ -1555,14 +1555,7 @@ public class GregorianCalendar extends Calendar {
@Override
public int getMaximum(int field) {
switch (field) {
case MONTH:
case DAY_OF_MONTH:
case DAY_OF_YEAR:
case WEEK_OF_YEAR:
case WEEK_OF_MONTH:
case DAY_OF_WEEK_IN_MONTH:
case YEAR:
{
case MONTH, DAY_OF_MONTH, DAY_OF_YEAR, WEEK_OF_YEAR, WEEK_OF_MONTH, DAY_OF_WEEK_IN_MONTH, YEAR -> {
// On or after Gregorian 200-3-1, Julian and Gregorian
// calendar dates are the same or Gregorian dates are
// larger (i.e., there is a "gap") after 300-3-1.
@ -1574,7 +1567,7 @@ public class GregorianCalendar extends Calendar {
gc.setLenient(true);
gc.setTimeInMillis(gregorianCutover);
int v1 = gc.getActualMaximum(field);
gc.setTimeInMillis(gregorianCutover-1);
gc.setTimeInMillis(gregorianCutover - 1);
int v2 = gc.getActualMaximum(field);
return Math.max(MAX_VALUES[field], Math.max(v1, v2));
}
@ -1634,19 +1627,12 @@ public class GregorianCalendar extends Calendar {
@Override
public int getLeastMaximum(int field) {
switch (field) {
case MONTH:
case DAY_OF_MONTH:
case DAY_OF_YEAR:
case WEEK_OF_YEAR:
case WEEK_OF_MONTH:
case DAY_OF_WEEK_IN_MONTH:
case YEAR:
{
case MONTH, DAY_OF_MONTH, DAY_OF_YEAR, WEEK_OF_YEAR, WEEK_OF_MONTH, DAY_OF_WEEK_IN_MONTH, YEAR -> {
GregorianCalendar gc = (GregorianCalendar) clone();
gc.setLenient(true);
gc.setTimeInMillis(gregorianCutover);
int v1 = gc.getActualMaximum(field);
gc.setTimeInMillis(gregorianCutover-1);
gc.setTimeInMillis(gregorianCutover - 1);
int v2 = gc.getActualMaximum(field);
return Math.min(LEAST_MAX_VALUES[field], Math.min(v1, v2));
}
@ -1741,8 +1727,7 @@ public class GregorianCalendar extends Calendar {
int value = -1;
switch (field) {
case MONTH:
{
case MONTH -> {
if (!gc.isCutoverYear(normalizedYear)) {
value = DECEMBER;
break;
@ -1757,10 +1742,7 @@ public class GregorianCalendar extends Calendar {
cal.getCalendarDateFromFixedDate(d, nextJan1 - 1);
value = d.getMonth() - 1;
}
break;
case DAY_OF_MONTH:
{
case DAY_OF_MONTH -> {
value = cal.getMonthLength(date);
if (!gc.isCutoverYear(normalizedYear) || date.getDayOfMonth() == value) {
break;
@ -1777,10 +1759,7 @@ public class GregorianCalendar extends Calendar {
BaseCalendar.Date d = gc.getCalendarDate(monthEnd);
value = d.getDayOfMonth();
}
break;
case DAY_OF_YEAR:
{
case DAY_OF_YEAR -> {
if (!gc.isCutoverYear(normalizedYear)) {
value = cal.getYearLength(date);
break;
@ -1807,10 +1786,7 @@ public class GregorianCalendar extends Calendar {
date.getDayOfMonth(), date);
value = (int)(nextJan1 - jan1);
}
break;
case WEEK_OF_YEAR:
{
case WEEK_OF_YEAR -> {
if (!gc.isCutoverYear(normalizedYear)) {
// Get the day of week of January 1 of the year
CalendarDate d = cal.newCalendarDate(TimeZone.NO_TIMEZONE);
@ -1841,10 +1817,7 @@ public class GregorianCalendar extends Calendar {
value = gc.get(WEEK_OF_YEAR);
}
}
break;
case WEEK_OF_MONTH:
{
case WEEK_OF_MONTH -> {
if (!gc.isCutoverYear(normalizedYear)) {
CalendarDate d = cal.newCalendarDate(null);
d.setDate(date.getYear(), date.getMonth(), 1);
@ -1880,10 +1853,7 @@ public class GregorianCalendar extends Calendar {
gc.add(WEEK_OF_MONTH, +1);
} while (gc.get(YEAR) == y && gc.get(MONTH) == m);
}
break;
case DAY_OF_WEEK_IN_MONTH:
{
case DAY_OF_WEEK_IN_MONTH -> {
// may be in the Gregorian cutover month
int ndays, dow1;
int dow = date.getDayOfWeek();
@ -1909,29 +1879,26 @@ public class GregorianCalendar extends Calendar {
ndays -= x;
value = (ndays + 6) / 7;
}
break;
case YEAR:
/* The year computation is no different, in principle, from the
* others, however, the range of possible maxima is large. In
* addition, the way we know we've exceeded the range is different.
* For these reasons, we use the special case code below to handle
* this field.
*
* The actual maxima for YEAR depend on the type of calendar:
*
* Gregorian = May 17, 292275056 BCE - Aug 17, 292278994 CE
* Julian = Dec 2, 292269055 BCE - Jan 3, 292272993 CE
* Hybrid = Dec 2, 292269055 BCE - Aug 17, 292278994 CE
*
* We know we've exceeded the maximum when either the month, date,
* time, or era changes in response to setting the year. We don't
* check for month, date, and time here because the year and era are
* sufficient to detect an invalid year setting. NOTE: If code is
* added to check the month and date in the future for some reason,
* Feb 29 must be allowed to shift to Mar 1 when setting the year.
*/
{
case YEAR -> {
/* The year computation is no different, in principle, from the
* others, however, the range of possible maxima is large. In
* addition, the way we know we've exceeded the range is different.
* For these reasons, we use the special case code below to handle
* this field.
*
* The actual maxima for YEAR depend on the type of calendar:
*
* Gregorian = May 17, 292275056 BCE - Aug 17, 292278994 CE
* Julian = Dec 2, 292269055 BCE - Jan 3, 292272993 CE
* Hybrid = Dec 2, 292269055 BCE - Aug 17, 292278994 CE
*
* We know we've exceeded the maximum when either the month, date,
* time, or era changes in response to setting the year. We don't
* check for month, date, and time here because the year and era are
* sufficient to detect an invalid year setting. NOTE: If code is
* added to check the month and date in the future for some reason,
* Feb 29 must be allowed to shift to Mar 1 when setting the year.
*/
if (gc == this) {
gc = (GregorianCalendar) clone();
}
@ -1970,10 +1937,7 @@ public class GregorianCalendar extends Calendar {
}
}
}
break;
default:
throw new ArrayIndexOutOfBoundsException(field);
default -> throw new ArrayIndexOutOfBoundsException(field);
}
return value;
}

249
src/java.base/share/classes/java/util/JapaneseImperialCalendar.java

@ -1115,16 +1115,14 @@ class JapaneseImperialCalendar extends Calendar {
* @see #getActualMaximum(int)
*/
public int getMaximum(int field) {
switch (field) {
case YEAR:
{
return switch (field) {
case YEAR -> {
// The value should depend on the time zone of this calendar.
LocalGregorianCalendar.Date d = jcal.getCalendarDate(Long.MAX_VALUE,
getZone());
return Math.max(LEAST_MAX_VALUES[YEAR], d.getYear());
LocalGregorianCalendar.Date d = jcal.getCalendarDate(Long.MAX_VALUE, getZone());
yield Math.max(LEAST_MAX_VALUES[YEAR], d.getYear());
}
}
return MAX_VALUES[field];
default -> MAX_VALUES[field];
};
}
/**
@ -1168,13 +1166,10 @@ class JapaneseImperialCalendar extends Calendar {
* @see #getActualMaximum(int)
*/
public int getLeastMaximum(int field) {
switch (field) {
case YEAR:
{
return Math.min(LEAST_MAX_VALUES[YEAR], getMaximum(YEAR));
}
}
return LEAST_MAX_VALUES[field];
return switch (field) {
case YEAR -> Math.min(LEAST_MAX_VALUES[YEAR], getMaximum(YEAR));
default -> LEAST_MAX_VALUES[field];
};
}
/**
@ -1207,8 +1202,7 @@ class JapaneseImperialCalendar extends Calendar {
getZone());
int eraIndex = getEraIndex(jd);
switch (field) {
case YEAR:
{
case YEAR -> {
if (eraIndex > BEFORE_MEIJI) {
value = 1;
long since = eras[eraIndex].getSince(getZone());
@ -1239,10 +1233,7 @@ class JapaneseImperialCalendar extends Calendar {
}
}
}
break;
case MONTH:
{
case MONTH -> {
// In Before Meiji and Meiji, January is the first month.
if (eraIndex > MEIJI && jd.getYear() == 1) {
long since = eras[eraIndex].getSince(getZone());
@ -1253,10 +1244,7 @@ class JapaneseImperialCalendar extends Calendar {
}
}
}
break;
case WEEK_OF_YEAR:
{
case WEEK_OF_YEAR -> {
value = 1;
CalendarDate d = jcal.getCalendarDate(Long.MIN_VALUE, getZone());
// shift 400 years to avoid underflow
@ -1276,7 +1264,6 @@ class JapaneseImperialCalendar extends Calendar {
value++;
}
}
break;
}
return value;
}
@ -1313,13 +1300,10 @@ class JapaneseImperialCalendar extends Calendar {
JapaneseImperialCalendar jc = getNormalizedCalendar();
LocalGregorianCalendar.Date date = jc.jdate;
int normalizedYear = date.getNormalizedYear();
int value = -1;
switch (field) {
case MONTH:
{
value = DECEMBER;
return switch (field) {
case MONTH -> {
int month = DECEMBER;
if (isTransitionYear(date.getNormalizedYear())) {
// TODO: there may be multiple transitions in a year.
int eraIndex = getEraIndex(date);
@ -1333,24 +1317,18 @@ class JapaneseImperialCalendar extends Calendar {
LocalGregorianCalendar.Date ldate
= (LocalGregorianCalendar.Date) date.clone();
jcal.getCalendarDateFromFixedDate(ldate, transition - 1);
value = ldate.getMonth() - 1;
month = ldate.getMonth() - 1;
}
} else {
LocalGregorianCalendar.Date d = jcal.getCalendarDate(Long.MAX_VALUE,
getZone());
LocalGregorianCalendar.Date d = jcal.getCalendarDate(Long.MAX_VALUE, getZone());
if (date.getEra() == d.getEra() && date.getYear() == d.getYear()) {
value = d.getMonth() - 1;
month = d.getMonth() - 1;
}
}
yield month;
}
break;
case DAY_OF_MONTH:
value = jcal.getMonthLength(date);
break;
case DAY_OF_YEAR:
{
case DAY_OF_MONTH -> jcal.getMonthLength(date);
case DAY_OF_YEAR -> {
if (isTransitionYear(date.getNormalizedYear())) {
// Handle transition year.
// TODO: there may be multiple transitions in a year.
@ -1364,42 +1342,35 @@ class JapaneseImperialCalendar extends Calendar {
CalendarDate d = gcal.newCalendarDate(TimeZone.NO_TIMEZONE);
d.setDate(date.getNormalizedYear(), BaseCalendar.JANUARY, 1);
if (fd < transition) {
value = (int)(transition - gcal.getFixedDate(d));
} else {
d.addYear(+1);
value = (int)(gcal.getFixedDate(d) - transition);
yield (int) (transition - gcal.getFixedDate(d));
}
d.addYear(1);
yield (int) (gcal.getFixedDate(d) - transition);
}
LocalGregorianCalendar.Date d = jcal.getCalendarDate(Long.MAX_VALUE, getZone());
if (date.getEra() == d.getEra() && date.getYear() == d.getYear()) {
long fd = jcal.getFixedDate(d);
long jan1 = getFixedDateJan1(d, fd);
yield (int) (fd - jan1) + 1;
} else if (date.getYear() == getMinimum(YEAR)) {
CalendarDate d1 = jcal.getCalendarDate(Long.MIN_VALUE, getZone());
long fd1 = jcal.getFixedDate(d1);
d1.addYear(1);
d1.setMonth(BaseCalendar.JANUARY).setDayOfMonth(1);
jcal.normalize(d1);
long fd2 = jcal.getFixedDate(d1);
yield (int) (fd2 - fd1);
} else {
LocalGregorianCalendar.Date d = jcal.getCalendarDate(Long.MAX_VALUE,
getZone());
if (date.getEra() == d.getEra() && date.getYear() == d.getYear()) {
long fd = jcal.getFixedDate(d);
long jan1 = getFixedDateJan1(d, fd);
value = (int)(fd - jan1) + 1;
} else if (date.getYear() == getMinimum(YEAR)) {
CalendarDate d1 = jcal.getCalendarDate(Long.MIN_VALUE, getZone());
long fd1 = jcal.getFixedDate(d1);
d1.addYear(1);
d1.setMonth(BaseCalendar.JANUARY).setDayOfMonth(1);
jcal.normalize(d1);
long fd2 = jcal.getFixedDate(d1);
value = (int)(fd2 - fd1);
} else {
value = jcal.getYearLength(date);
}
yield jcal.getYearLength(date);
}
}
break;
case WEEK_OF_YEAR:
{
case WEEK_OF_YEAR -> {
if (!isTransitionYear(date.getNormalizedYear())) {
LocalGregorianCalendar.Date jd = jcal.getCalendarDate(Long.MAX_VALUE,
getZone());
LocalGregorianCalendar.Date jd = jcal.getCalendarDate(Long.MAX_VALUE, getZone());
if (date.getEra() == jd.getEra() && date.getYear() == jd.getYear()) {
long fd = jcal.getFixedDate(jd);
long jan1 = getFixedDateJan1(jd, fd);
value = getWeekNumber(jan1, fd);
yield getWeekNumber(jan1, fd);
} else if (date.getEra() == null && date.getYear() == getMinimum(YEAR)) {
CalendarDate d = jcal.getCalendarDate(Long.MIN_VALUE, getZone());
// shift 400 years to avoid underflow
@ -1412,29 +1383,27 @@ class JapaneseImperialCalendar extends Calendar {
long nextJan1 = jcal.getFixedDate(jd);
long nextJan1st = LocalGregorianCalendar.getDayOfWeekDateOnOrBefore(nextJan1 + 6,
getFirstDayOfWeek());
int ndays = (int)(nextJan1st - nextJan1);
int ndays = (int) (nextJan1st - nextJan1);
if (ndays >= getMinimalDaysInFirstWeek()) {
nextJan1st -= 7;
}
value = getWeekNumber(jan1, nextJan1st);
} else {
// Get the day of week of January 1 of the year
CalendarDate d = gcal.newCalendarDate(TimeZone.NO_TIMEZONE);
d.setDate(date.getNormalizedYear(), BaseCalendar.JANUARY, 1);
int dayOfWeek = gcal.getDayOfWeek(d);
// Normalize the day of week with the firstDayOfWeek value
dayOfWeek -= getFirstDayOfWeek();
if (dayOfWeek < 0) {
dayOfWeek += 7;
}
value = 52;
int magic = dayOfWeek + getMinimalDaysInFirstWeek() - 1;
if ((magic == 6) ||
(date.isLeapYear() && (magic == 5 || magic == 12))) {
value++;
}
yield getWeekNumber(jan1, nextJan1st);
}
break;
// Get the day of week of January 1 of the year
CalendarDate d = gcal.newCalendarDate(TimeZone.NO_TIMEZONE);
d.setDate(date.getNormalizedYear(), BaseCalendar.JANUARY, 1);
int dayOfWeek = gcal.getDayOfWeek(d);
// Normalize the day of week with the firstDayOfWeek value
dayOfWeek -= getFirstDayOfWeek();
if (dayOfWeek < 0) {
dayOfWeek += 7;
}
int magic = dayOfWeek + getMinimalDaysInFirstWeek() - 1;
if ((magic == 6) ||
(date.isLeapYear() && (magic == 5 || magic == 12))) {
yield 53;
}
yield 52;
}
if (jc == this) {
@ -1442,49 +1411,43 @@ class JapaneseImperialCalendar extends Calendar {
}
int max = getActualMaximum(DAY_OF_YEAR);
jc.set(DAY_OF_YEAR, max);
value = jc.get(WEEK_OF_YEAR);
if (value == 1 && max > 7) {
int weekOfYear = jc.get(WEEK_OF_YEAR);
if (weekOfYear == 1 && max > 7) {
jc.add(WEEK_OF_YEAR, -1);
value = jc.get(WEEK_OF_YEAR);
weekOfYear = jc.get(WEEK_OF_YEAR);
}
yield weekOfYear;
}
break;
case WEEK_OF_MONTH:
{
LocalGregorianCalendar.Date jd = jcal.getCalendarDate(Long.MAX_VALUE,
getZone());
if (!(date.getEra() == jd.getEra() && date.getYear() == jd.getYear())) {
CalendarDate d = gcal.newCalendarDate(TimeZone.NO_TIMEZONE);
d.setDate(date.getNormalizedYear(), date.getMonth(), 1);
int dayOfWeek = gcal.getDayOfWeek(d);
int monthLength = actualMonthLength();
dayOfWeek -= getFirstDayOfWeek();
if (dayOfWeek < 0) {
dayOfWeek += 7;
}
int nDaysFirstWeek = 7 - dayOfWeek; // # of days in the first week
value = 3;
if (nDaysFirstWeek >= getMinimalDaysInFirstWeek()) {
value++;
}
monthLength -= nDaysFirstWeek + 7 * 3;
if (monthLength > 0) {
value++;
if (monthLength > 7) {
value++;
}
}
} else {
case WEEK_OF_MONTH -> {
LocalGregorianCalendar.Date jd = jcal.getCalendarDate(Long.MAX_VALUE, getZone());
if (date.getEra() == jd.getEra() && date.getYear() == jd.getYear()) {
long fd = jcal.getFixedDate(jd);
long month1 = fd - jd.getDayOfMonth() + 1;
value = getWeekNumber(month1, fd);
yield getWeekNumber(month1, fd);
}
CalendarDate d = gcal.newCalendarDate(TimeZone.NO_TIMEZONE);
d.setDate(date.getNormalizedYear(), date.getMonth(), 1);
int dayOfWeek = gcal.getDayOfWeek(d);
int monthLength = actualMonthLength();
dayOfWeek -= getFirstDayOfWeek();
if (dayOfWeek < 0) {
dayOfWeek += 7;
}
int nDaysFirstWeek = 7 - dayOfWeek; // # of days in the first week
int weekOfMonth = 3;
if (nDaysFirstWeek >= getMinimalDaysInFirstWeek()) {
weekOfMonth++;
}
monthLength -= nDaysFirstWeek + 7 * 3;
if (monthLength > 0) {
weekOfMonth++;
if (monthLength > 7) {
weekOfMonth++;
}
}
yield weekOfMonth;
}
break;
case DAY_OF_WEEK_IN_MONTH:
{
case DAY_OF_WEEK_IN_MONTH -> {
int ndays, dow1;
int dow = date.getDayOfWeek();
BaseCalendar.Date d = (BaseCalendar.Date) date.clone();
@ -1497,42 +1460,36 @@ class JapaneseImperialCalendar extends Calendar {
x += 7;
}
ndays -= x;
value = (ndays + 6) / 7;
yield (ndays + 6) / 7;
}
break;
case YEAR:
{
case YEAR -> {
CalendarDate jd = jcal.getCalendarDate(jc.getTimeInMillis(), getZone());
CalendarDate d;
int eraIndex = getEraIndex(date);
int year;
if (eraIndex == eras.length - 1) {
d = jcal.getCalendarDate(Long.MAX_VALUE, getZone());
value = d.getYear();
year = d.getYear();
// Use an equivalent year for the
// getYearOffsetInMillis call to avoid overflow.
if (value > 400) {
jd.setYear(value - 400);
if (year > 400) {
jd.setYear(year - 400);
}
} else {
d = jcal.getCalendarDate(eras[eraIndex + 1].getSince(getZone()) - 1,
getZone());
value = d.getYear();
d = jcal.getCalendarDate(eras[eraIndex + 1].getSince(getZone()) - 1, getZone());
year = d.getYear();
// Use the same year as d.getYear() to be
// consistent with leap and common years.
jd.setYear(value);
jd.setYear(year);
}
jcal.normalize(jd);
if (getYearOffsetInMillis(jd) > getYearOffsetInMillis(d)) {
value--;
year--;
}
yield year;
}
break;
default:
throw new ArrayIndexOutOfBoundsException(field);
}
return value;
default -> throw new ArrayIndexOutOfBoundsException(field);
};
}
/**

31
src/java.base/share/classes/java/util/Locale.java

@ -2257,23 +2257,20 @@ public final class Locale implements Cloneable, Serializable {
return Arrays.stream(stringList).collect(Collectors.joining(","));
}
switch (stringList.length) {
case 0:
return "";
case 1:
return stringList[0];
default:
return Arrays.stream(stringList).reduce("",
(s1, s2) -> {
if (s1.isEmpty()) {
return s2;
}
if (s2.isEmpty()) {
return s1;
}
return MessageFormat.format(pattern, s1, s2);
});
}
return switch (stringList.length) {
case 0 -> "";
case 1 -> stringList[0];
default -> Arrays.stream(stringList).reduce("",
(s1, s2) -> {
if (s1.isEmpty()) {
return s2;
}
if (s2.isEmpty()) {
return s1;
}
return MessageFormat.format(pattern, s1, s2);
});
};
}
// Duplicate of sun.util.locale.UnicodeLocaleExtension.isKey in order to

23
src/java.base/share/classes/java/util/Properties.java

@ -655,23 +655,12 @@ public class Properties extends Hashtable<Object,Object> {
int value = 0;
for (int i = 0; i < 4; i++) {
aChar = in[off++];
switch (aChar) {
case '0': case '1': case '2': case '3': case '4':
case '5': case '6': case '7': case '8': case '9':
value = (value << 4) + aChar - '0';
break;
case 'a': case 'b': case 'c':
case 'd': case 'e': case 'f':
value = (value << 4) + 10 + aChar - 'a';
break;
case 'A': case 'B': case 'C':
case 'D': case 'E': case 'F':
value = (value << 4) + 10 + aChar - 'A';
break;
default:
throw new IllegalArgumentException(
"Malformed \\uxxxx encoding.");
}
value = switch (aChar) {
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' -> (value << 4) + aChar - '0';
case 'a', 'b', 'c', 'd', 'e', 'f' -> (value << 4) + 10 + aChar - 'a';
case 'A', 'B', 'C', 'D', 'E', 'F' -> (value << 4) + 10 + aChar - 'A';
default -> throw new IllegalArgumentException("Malformed \\uxxxx encoding.");
};
}
out.append((char)value);
} else {

16
src/java.base/share/classes/java/util/PropertyPermission.java

@ -326,16 +326,12 @@ public final class PropertyPermission extends BasicPermission {
* @return the canonical string representation of the actions.
*/
static String getActions(int mask) {
switch (mask & (READ|WRITE)) {
case READ:
return SecurityConstants.PROPERTY_READ_ACTION;
case WRITE:
return SecurityConstants.PROPERTY_WRITE_ACTION;
case READ|WRITE:
return SecurityConstants.PROPERTY_RW_ACTION;
default:
return "";
}
return switch (mask & (READ | WRITE)) {
case READ -> SecurityConstants.PROPERTY_READ_ACTION;
case WRITE -> SecurityConstants.PROPERTY_WRITE_ACTION;
case READ | WRITE -> SecurityConstants.PROPERTY_RW_ACTION;
default -> "";
};
}
/**

39
src/java.base/share/classes/java/util/ResourceBundle.java

@ -1829,19 +1829,13 @@ public abstract class ResourceBundle {
if (bundle == null && !cacheKey.callerHasProvider()) {
for (String format : formats) {
try {
switch (format) {
case "java.class":
bundle = ResourceBundleProviderHelper
.loadResourceBundle(callerModule, module, baseName, targetLocale);
break;
case "java.properties":
bundle = ResourceBundleProviderHelper
.loadPropertyResourceBundle(callerModule, module, baseName, targetLocale);
break;
default:
throw new InternalError("unexpected format: " + format);
}
bundle = switch (format) {
case "java.class" -> ResourceBundleProviderHelper
.loadResourceBundle(callerModule, module, baseName, targetLocale);
case "java.properties" -> ResourceBundleProviderHelper
.loadPropertyResourceBundle(callerModule, module, baseName, targetLocale);
default -> throw new InternalError("unexpected format: " + format);
};
if (bundle != null) {
cacheKey.setFormat(format);
@ -2916,15 +2910,8 @@ public abstract class ResourceBundle {
// Supply script for users who want to use zh_Hans/zh_Hant
// as bundle names (recommended for Java7+)
switch (region) {
case "TW":
case "HK":
case "MO":
script = "Hant";
break;
case "CN":
case "SG":
script = "Hans";
break;
case "TW", "HK", "MO" -> script = "Hant";
case "CN", "SG" -> script = "Hans";
}
}
}
@ -2962,12 +2949,8 @@ public abstract class ResourceBundle {
// Supply region(country) for users who still package Chinese
// bundles using old convension.
switch (script) {
case "Hans":
region = "CN";
break;
case "Hant":
region = "TW";
break;
case "Hans" -> region = "CN";
case "Hant" -> region = "TW";
}
}
}

46
src/java.base/share/classes/java/util/SimpleTimeZone.java

@ -738,27 +738,22 @@ public class SimpleTimeZone extends TimeZone {
cdate.setNormalizedYear(year);
cdate.setMonth(month + 1);
switch (mode) {
case DOM_MODE:
cdate.setDayOfMonth(dayOfMonth);
break;
case DOW_IN_MONTH_MODE:
cdate.setDayOfMonth(1);
if (dayOfMonth < 0) {
cdate.setDayOfMonth(cal.getMonthLength(cdate));
case DOM_MODE -> cdate.setDayOfMonth(dayOfMonth);
case DOW_IN_MONTH_MODE -> {
cdate.setDayOfMonth(1);
if (dayOfMonth < 0) {
cdate.setDayOfMonth(cal.getMonthLength(cdate));
}
cdate = (BaseCalendar.Date) cal.getNthDayOfWeek(dayOfMonth, dayOfWeek, cdate);
}
case DOW_GE_DOM_MODE -> {
cdate.setDayOfMonth(dayOfMonth);
cdate = (BaseCalendar.Date) cal.getNthDayOfWeek(1, dayOfWeek, cdate);
}
case DOW_LE_DOM_MODE -> {
cdate.setDayOfMonth(dayOfMonth);
cdate = (BaseCalendar.Date) cal.getNthDayOfWeek(-1, dayOfWeek, cdate);
}
cdate = (BaseCalendar.Date) cal.getNthDayOfWeek(dayOfMonth, dayOfWeek, cdate);
break;
case DOW_GE_DOM_MODE:
cdate.setDayOfMonth(dayOfMonth);
cdate = (BaseCalendar.Date) cal.getNthDayOfWeek(1, dayOfWeek, cdate);
break;
case DOW_LE_DOM_MODE:
cdate.setDayOfMonth(dayOfMonth);
cdate = (BaseCalendar.Date) cal.getNthDayOfWeek(-1, dayOfWeek, cdate);
break;
}
return cal.getTime(cdate) + timeOfDay;
}
@ -1527,9 +1522,7 @@ public class SimpleTimeZone extends TimeZone {
* rules anyway.
*/
switch (startTimeMode) {
case UTC_TIME:
startTime += rawOffset;
break;
case UTC_TIME -> startTime += rawOffset;
}
while (startTime < 0) {
startTime += millisPerDay;
@ -1541,11 +1534,8 @@ public class SimpleTimeZone extends TimeZone {
}
switch (endTimeMode) {
case UTC_TIME:
endTime += rawOffset + dstSavings;
break;
case STANDARD_TIME:
endTime += dstSavings;
case UTC_TIME -> endTime += rawOffset + dstSavings;
case STANDARD_TIME -> endTime += dstSavings;
}
while (endTime < 0) {
endTime += millisPerDay;

17
src/java.base/share/classes/java/util/jar/JarFile.java

@ -190,19 +190,18 @@ public class JarFile extends ZipFile {
String enableMultiRelease = GetPropertyAction
.privilegedGetProperty("jdk.util.jar.enableMultiRelease", "true");
switch (enableMultiRelease) {
case "true":
default:
MULTI_RELEASE_ENABLED = true;
MULTI_RELEASE_FORCED = false;
break;
case "false":
case "false" -> {
MULTI_RELEASE_ENABLED = false;
MULTI_RELEASE_FORCED = false;
break;
case "force":
}
case "force" -> {
MULTI_RELEASE_ENABLED = true;
MULTI_RELEASE_FORCED = true;
break;
}
default -> {
MULTI_RELEASE_ENABLED = true;
MULTI_RELEASE_FORCED = false;
}
}
}

314
src/java.base/share/classes/java/util/regex/CharPredicates.java

@ -170,55 +170,51 @@ class CharPredicates {
/////////////////////////////////////////////////////////////////////////////
private static CharPredicate getPosixPredicate(String name, boolean caseIns) {
switch (name) {
case "ALPHA": return ALPHABETIC();
case "LOWER": return caseIns
return switch (name) {
case "ALPHA" -> ALPHABETIC();
case "LOWER" -> caseIns
? LOWERCASE().union(UPPERCASE(), TITLECASE())
: LOWERCASE();
case "UPPER": return caseIns
case "UPPER" -> caseIns
? UPPERCASE().union(LOWERCASE(), TITLECASE())
: UPPERCASE();
case "SPACE": return WHITE_SPACE();
case "PUNCT": return PUNCTUATION();
case "XDIGIT": return HEX_DIGIT();
case "ALNUM": return ALNUM();
case "CNTRL": return CONTROL();
case "DIGIT": return DIGIT();
case "BLANK": return BLANK();
case "GRAPH": return GRAPH();
case "PRINT": return PRINT();
default: return null;
}
case "SPACE" -> WHITE_SPACE();
case "PUNCT" -> PUNCTUATION();
case "XDIGIT" -> HEX_DIGIT();
case "ALNUM" -> ALNUM();
case "CNTRL" -> CONTROL();
case "DIGIT" -> DIGIT();
case "BLANK" -> BLANK();
case "GRAPH" -> GRAPH();
case "PRINT" -> PRINT();
default -> null;
};
}
private static CharPredicate getUnicodePredicate(String name, boolean caseIns) {
switch (name) {
case "ALPHABETIC": return ALPHABETIC();
case "ASSIGNED": return ASSIGNED();
case "CONTROL": return CONTROL();
case "HEXDIGIT":
case "HEX_DIGIT": return HEX_DIGIT();
case "IDEOGRAPHIC": return IDEOGRAPHIC();
case "JOINCONTROL":
case "JOIN_CONTROL": return JOIN_CONTROL();
case "LETTER": return LETTER();
case "LOWERCASE": return caseIns
return switch (name) {
case "ALPHABETIC" -> ALPHABETIC();
case "ASSIGNED" -> ASSIGNED();
case "CONTROL" -> CONTROL();
case "HEXDIGIT", "HEX_DIGIT" -> HEX_DIGIT();
case "IDEOGRAPHIC" -> IDEOGRAPHIC();
case "JOINCONTROL", "JOIN_CONTROL" -> JOIN_CONTROL();
case "LETTER" -> LETTER();
case "LOWERCASE" -> caseIns
? LOWERCASE().union(UPPERCASE(), TITLECASE())
: LOWERCASE();
case "NONCHARACTERCODEPOINT":
case "NONCHARACTER_CODE_POINT": return NONCHARACTER_CODE_POINT();
case "TITLECASE": return caseIns
case "NONCHARACTERCODEPOINT", "NONCHARACTER_CODE_POINT" -> NONCHARACTER_CODE_POINT();
case "TITLECASE" -> caseIns
? TITLECASE().union(LOWERCASE(), UPPERCASE())
: TITLECASE();
case "PUNCTUATION": return PUNCTUATION();
case "UPPERCASE": return caseIns
case "PUNCTUATION" -> PUNCTUATION();
case "UPPERCASE" -> caseIns
? UPPERCASE().union(LOWERCASE(), TITLECASE())
: UPPERCASE();
case "WHITESPACE":
case "WHITE_SPACE": return WHITE_SPACE();
case "WORD": return WORD();
default: return null;
}
case "WHITESPACE", "WHITE_SPACE" -> WHITE_SPACE();
case "WORD" -> WORD();
default -> null;
};
}
public static CharPredicate forUnicodeProperty(String propName, boolean caseIns) {
@ -267,135 +263,135 @@ class CharPredicates {
static CharPredicate forProperty(String name, boolean caseIns) {
// Unicode character property aliases, defined in
// http://www.unicode.org/Public/UNIDATA/PropertyValueAliases.txt
switch (name) {
case "Cn": return category(1<<Character.UNASSIGNED);
case "Lu": return category(caseIns ? (1<<Character.LOWERCASE_LETTER) |
(1<<Character.UPPERCASE_LETTER) |
(1<<Character.TITLECASE_LETTER)
: (1<<Character.UPPERCASE_LETTER));
case "Ll": return category(caseIns ? (1<<Character.LOWERCASE_LETTER) |
(1<<Character.UPPERCASE_LETTER) |
(1<<Character.TITLECASE_LETTER)
: (1<<Character.LOWERCASE_LETTER));
case "Lt": return category(caseIns ? (1<<Character.LOWERCASE_LETTER) |
(1<<Character.UPPERCASE_LETTER) |
(1<<Character.TITLECASE_LETTER)
: (1<<Character.TITLECASE_LETTER));
case "Lm": return category(1<<Character.MODIFIER_LETTER);
case "Lo": return category(1<<Character.OTHER_LETTER);
case "Mn": return category(1<<Character.NON_SPACING_MARK);
case "Me": return category(1<<Character.ENCLOSING_MARK);
case "Mc": return category(1<<Character.COMBINING_SPACING_MARK);
case "Nd": return category(1<<Character.DECIMAL_DIGIT_NUMBER);
case "Nl": return category(1<<Character.LETTER_NUMBER);
case "No": return category(1<<Character.OTHER_NUMBER);
case "Zs": return category(1<<Character.SPACE_SEPARATOR);
case "Zl": return category(1<<Character.LINE_SEPARATOR);
case "Zp": return category(1<<Character.PARAGRAPH_SEPARATOR);
case "Cc": return category(1<<Character.CONTROL);
case "Cf": return category(1<<Character.FORMAT);
case "Co": return category(1<<Character.PRIVATE_USE);
case "Cs": return category(1<<Character.SURROGATE);
case "Pd": return category(1<<Character.DASH_PUNCTUATION);
case "Ps": return category(1<<Character.START_PUNCTUATION);
case "Pe": return category(1<<Character.END_PUNCTUATION);
case "Pc": return category(1<<Character.CONNECTOR_PUNCTUATION);
case "Po": return category(1<<Character.OTHER_PUNCTUATION);
case "Sm": return category(1<<Character.MATH_SYMBOL);
case "Sc": return category(1<<Character.CURRENCY_SYMBOL);
case "Sk": return category(1<<Character.MODIFIER_SYMBOL);
case "So": return category(1<<Character.OTHER_SYMBOL);
case "Pi": return category(1<<Character.INITIAL_QUOTE_PUNCTUATION);
case "Pf": return category(1<<Character.FINAL_QUOTE_PUNCTUATION);
case "L": return category(((1<<Character.UPPERCASE_LETTER) |
(1<<Character.LOWERCASE_LETTER) |
(1<<Character.TITLECASE_LETTER) |
(1<<Character.MODIFIER_LETTER) |
(1<<Character.OTHER_LETTER)));
case "M": return category(((1<<Character.NON_SPACING_MARK) |
(1<<Character.ENCLOSING_MARK) |
(1<<Character.COMBINING_SPACING_MARK)));
case "N": return category(((1<<Character.DECIMAL_DIGIT_NUMBER) |
(1<<Character.LETTER_NUMBER) |
(1<<Character.OTHER_NUMBER)));
case "Z": return category(((1<<Character.SPACE_SEPARATOR) |
(1<<Character.LINE_SEPARATOR) |
(1<<Character.PARAGRAPH_SEPARATOR)));
case "C": return category(((1<<Character.CONTROL) |
(1<<Character.FORMAT) |
(1<<Character.PRIVATE_USE) |
(1<<Character.SURROGATE) |
(1<<Character.UNASSIGNED))); // Other
case "P": return category(((1<<Character.DASH_PUNCTUATION) |
(1<<Character.START_PUNCTUATION) |
(1<<Character.END_PUNCTUATION) |
(1<<Character.CONNECTOR_PUNCTUATION) |
(1<<Character.OTHER_PUNCTUATION) |
(1<<Character.INITIAL_QUOTE_PUNCTUATION) |
(1<<Character.FINAL_QUOTE_PUNCTUATION)));
case "S": return category(((1<<Character.MATH_SYMBOL) |
(1<<Character.CURRENCY_SYMBOL) |
(1<<Character.MODIFIER_SYMBOL) |
(1<<Character.OTHER_SYMBOL)));
case "LC": return category(((1<<Character.UPPERCASE_LETTER) |
(1<<Character.LOWERCASE_LETTER) |
(1<<Character.TITLECASE_LETTER)));
case "LD": return category(((1<<Character.UPPERCASE_LETTER) |
(1<<Character.LOWERCASE_LETTER) |
(1<<Character.TITLECASE_LETTER) |
(1<<Character.MODIFIER_LETTER) |
(1<<Character.OTHER_LETTER) |
(1<<Character.DECIMAL_DIGIT_NUMBER)));
case "L1": return range(0x00, 0xFF); // Latin-1
case "all": return Pattern.ALL();
return switch (name) {
case "Cn" -> category(1 << Character.UNASSIGNED);
case "Lu" -> category(caseIns ? (1 << Character.LOWERCASE_LETTER) |
(1 << Character.UPPERCASE_LETTER) |
(1 << Character.TITLECASE_LETTER)
: (1 << Character.UPPERCASE_LETTER));
case "Ll" -> category(caseIns ? (1 << Character.LOWERCASE_LETTER) |
(1 << Character.UPPERCASE_LETTER) |
(1 << Character.TITLECASE_LETTER)
: (1 << Character.LOWERCASE_LETTER));
case "Lt" -> category(caseIns ? (1 << Character.LOWERCASE_LETTER) |
(1 << Character.UPPERCASE_LETTER) |
(1 << Character.TITLECASE_LETTER)
: (1 << Character.TITLECASE_LETTER));
case "Lm" -> category(1 << Character.MODIFIER_LETTER);
case "Lo" -> category(1 << Character.OTHER_LETTER);
case "Mn" -> category(1 << Character.NON_SPACING_MARK);
case "Me" -> category(1 << Character.ENCLOSING_MARK);
case "Mc" -> category(1 << Character.COMBINING_SPACING_MARK);
case "Nd" -> category(1 << Character.DECIMAL_DIGIT_NUMBER);
case "Nl" -> category(1 << Character.LETTER_NUMBER);
case "No" -> category(1 << Character.OTHER_NUMBER);
case "Zs" -> category(1 << Character.SPACE_SEPARATOR);
case "Zl" -> category(1 << Character.LINE_SEPARATOR);
case "Zp" -> category(1 << Character.PARAGRAPH_SEPARATOR);
case "Cc" -> category(1 << Character.CONTROL);
case "Cf" -> category(1 << Character.FORMAT);
case "Co" -> category(1 << Character.PRIVATE_USE);
case "Cs" -> category(1 << Character.SURROGATE);
case "Pd" -> category(1 << Character.DASH_PUNCTUATION);
case "Ps" -> category(1 << Character.START_PUNCTUATION);
case "Pe" -> category(1 << Character.END_PUNCTUATION);
case "Pc" -> category(1 << Character.CONNECTOR_PUNCTUATION);
case "Po" -> category(1 << Character.OTHER_PUNCTUATION);
case "Sm" -> category(1 << Character.MATH_SYMBOL);
case "Sc" -> category(1 << Character.CURRENCY_SYMBOL);
case "Sk" -> category(1 << Character.MODIFIER_SYMBOL);
case "So" -> category(1 << Character.OTHER_SYMBOL);
case "Pi" -> category(1 << Character.INITIAL_QUOTE_PUNCTUATION);
case "Pf" -> category(1 << Character.FINAL_QUOTE_PUNCTUATION);
case "L" -> category(((1 << Character.UPPERCASE_LETTER) |
(1 << Character.LOWERCASE_LETTER) |
(1 << Character.TITLECASE_LETTER) |
(1 << Character.MODIFIER_LETTER) |
(1 << Character.OTHER_LETTER)));
case "M" -> category(((1 << Character.NON_SPACING_MARK) |
(1 << Character.ENCLOSING_MARK) |
(1 << Character.COMBINING_SPACING_MARK)));
case "N" -> category(((1 << Character.DECIMAL_DIGIT_NUMBER) |
(1 << Character.LETTER_NUMBER) |
(1 << Character.OTHER_NUMBER)));
case "Z" -> category(((1 << Character.SPACE_SEPARATOR) |
(1 << Character.LINE_SEPARATOR) |
(1 << Character.PARAGRAPH_SEPARATOR)));
case "C" -> category(((1 << Character.CONTROL) |
(1 << Character.FORMAT) |
(1 << Character.PRIVATE_USE) |
(1 << Character.SURROGATE) |
(1 << Character.UNASSIGNED))); // Other
case "P" -> category(((1 << Character.DASH_PUNCTUATION) |
(1 << Character.START_PUNCTUATION) |
(1 << Character.END_PUNCTUATION) |
(1 << Character.CONNECTOR_PUNCTUATION) |
(1 << Character.OTHER_PUNCTUATION) |
(1 << Character.INITIAL_QUOTE_PUNCTUATION) |
(1 << Character.FINAL_QUOTE_PUNCTUATION)));
case "S" -> category(((1 << Character.MATH_SYMBOL) |
(1 << Character.CURRENCY_SYMBOL) |
(1 << Character.MODIFIER_SYMBOL) |
(1 << Character.OTHER_SYMBOL)));
case "LC" -> category(((1 << Character.UPPERCASE_LETTER) |
(1 << Character.LOWERCASE_LETTER) |
(1 << Character.TITLECASE_LETTER)));
case "LD" -> category(((1 << Character.UPPERCASE_LETTER) |
(1 << Character.LOWERCASE_LETTER) |
(1 << Character.TITLECASE_LETTER) |
(1 << Character.MODIFIER_LETTER) |
(1 << Character.OTHER_LETTER) |
(1 << Character.DECIMAL_DIGIT_NUMBER)));
case "L1" -> range(0x00, 0xFF); // Latin-1
case "all" -> Pattern.ALL();
// Posix regular expression character classes, defined in
// http://www.unix.org/onlinepubs/009695399/basedefs/xbd_chap09.html
case "ASCII": return range(0x00, 0x7F); // ASCII
case "Alnum": return ctype(ASCII.ALNUM); // Alphanumeric characters
case "Alpha": return ctype(ASCII.ALPHA); // Alphabetic characters
case "Blank": return ctype(ASCII.BLANK); // Space and tab characters
case "Cntrl": return ctype(ASCII.CNTRL); // Control characters
case "Digit": return range('0', '9'); // Numeric characters
case "Graph": return ctype(ASCII.GRAPH); // printable and visible
case "Lower": return caseIns ? ctype(ASCII.ALPHA)
case "ASCII" -> range(0x00, 0x7F); // ASCII
case "Alnum" -> ctype(ASCII.ALNUM); // Alphanumeric characters
case "Alpha" -> ctype(ASCII.ALPHA); // Alphabetic characters
case "Blank" -> ctype(ASCII.BLANK); // Space and tab characters
case "Cntrl" -> ctype(ASCII.CNTRL); // Control characters
case "Digit" -> range('0', '9'); // Numeric characters
case "Graph" -> ctype(ASCII.GRAPH); // printable and visible
case "Lower" -> caseIns ? ctype(ASCII.ALPHA)
: range('a', 'z'); // Lower-case alphabetic
case "Print": return range(0x20, 0x7E); // Printable characters
case "Punct": return ctype(ASCII.PUNCT); // Punctuation characters
case "Space": return ctype(ASCII.SPACE); // Space characters
case "Upper": return caseIns ? ctype(ASCII.ALPHA)
case "Print" -> range(0x20, 0x7E); // Printable characters
case "Punct" -> ctype(ASCII.PUNCT); // Punctuation characters
case "Space" -> ctype(ASCII.SPACE); // Space characters
case "Upper" -> caseIns ? ctype(ASCII.ALPHA)
: range('A', 'Z'); // Upper-case alphabetic
case "XDigit": return ctype(ASCII.XDIGIT); // hexadecimal digits
case "XDigit" -> ctype(ASCII.XDIGIT); // hexadecimal digits
// Java character properties, defined by methods in Character.java
case "javaLowerCase": return caseIns ? c -> Character.isLowerCase(c) ||
Character.isUpperCase(c) ||
Character.isTitleCase(c)
: Character::isLowerCase;
case "javaUpperCase": return caseIns ? c -> Character.isUpperCase(c) ||
Character.isLowerCase(c) ||
Character.isTitleCase(c)
: Character::isUpperCase;
case "javaAlphabetic": return Character::isAlphabetic;
case "javaIdeographic": return Character::isIdeographic;
case "javaTitleCase": return caseIns ? c -> Character.isTitleCase(c) ||
Character.isLowerCase(c) ||
Character.isUpperCase(c)
: Character::isTitleCase;
case "javaDigit": return Character::isDigit;
case "javaDefined": return Character::isDefined;
case "javaLetter": return Character::isLetter;
case "javaLetterOrDigit": return Character::isLetterOrDigit;
case "javaJavaIdentifierStart": return Character::isJavaIdentifierStart;
case "javaJavaIdentifierPart": return Character::isJavaIdentifierPart;
case "javaUnicodeIdentifierStart": return Character::isUnicodeIdentifierStart;
case "javaUnicodeIdentifierPart": return Character::isUnicodeIdentifierPart;
case "javaIdentifierIgnorable": return Character::isIdentifierIgnorable;
case "javaSpaceChar": return Character::isSpaceChar;
case "javaWhitespace": return Character::isWhitespace;
case "javaISOControl": return Character::isISOControl;
case "javaMirrored": return Character::isMirrored;
default: return null;
}
case "javaLowerCase" -> caseIns ? c -> Character.isLowerCase(c) ||
Character.isUpperCase(c) ||
Character.isTitleCase(c)
: Character::isLowerCase;
case "javaUpperCase" -> caseIns ? c -> Character.isUpperCase(c) ||
Character.isLowerCase(c) ||
Character.isTitleCase(c)
: Character::isUpperCase;
case "javaAlphabetic" -> Character::isAlphabetic;
case "javaIdeographic" -> Character::isIdeographic;
case "javaTitleCase" -> caseIns ? c -> Character.isTitleCase(c) ||
Character.isLowerCase(c) ||
Character.isUpperCase(c)
: Character::isTitleCase;
case "javaDigit" -> Character::isDigit;
case "javaDefined" -> Character::isDefined;
case "javaLetter" -> Character::isLetter;
case "javaLetterOrDigit" -> Character::isLetterOrDigit;
case "javaJavaIdentifierStart" -> Character::isJavaIdentifierStart;
case "javaJavaIdentifierPart" -> Character::isJavaIdentifierPart;
case "javaUnicodeIdentifierStart" -> Character::isUnicodeIdentifierStart;
case "javaUnicodeIdentifierPart" -> Character::isUnicodeIdentifierPart;
case "javaIdentifierIgnorable" -> Character::isIdentifierIgnorable;
case "javaSpaceChar" -> Character::isSpaceChar;
case "javaWhitespace" -> Character::isWhitespace;
case "javaISOControl" -> Character::isISOControl;
case "javaMirrored" -> Character::isMirrored;
default -> null;
};
}
private static CharPredicate category(final int typeMask) {

184
src/java.base/share/classes/java/util/regex/Pattern.java

@ -2343,30 +2343,19 @@ loop: for(int x=0, offset=0; x<nCodePoints; x++, offset+=len) {
boolean done = false;
while(!done) {
int ch = peek();
switch(ch) {
case '0':
case '1':
case '2':
case '3':
case '4':
case '5':
case '6':
case '7':
case '8':
case '9':
int newRefNum = (refNum * 10) + (ch - '0');
// Add another number if it doesn't make a group
// that doesn't exist
if (capturingGroupCount - 1 < newRefNum) {
done = true;
break;
switch (ch) {
case '0', '1', '2', '3', '4', '5', '6', '7', '8', '9' -> {
int newRefNum = (refNum * 10) + (ch - '0');
// Add another number if it doesn't make a group
// that doesn't exist
if (capturingGroupCount - 1 < newRefNum) {
done = true;
break;
}
refNum = newRefNum;
read();
}
refNum = newRefNum;
read();
break;
default:
done = true;
break;
default -> done = true;
}
}
hasGroupRef = true;
@ -2973,89 +2962,86 @@ loop: for(int x=0, offset=0; x<nCodePoints; x++, offset+=len) {
if (ch == '?') {
ch = skip();
switch (ch) {
case ':': // (?:xxx) pure group
head = createGroup(true);
tail = root;
head.next = expr(tail);
break;
case '=': // (?=xxx) and (?!xxx) lookahead
case '!':
head = createGroup(true);
tail = root;
head.next = expr(tail);
if (ch == '=') {
head = tail = new Pos(head);
} else {
head = tail = new Neg(head);
}
break;
case '>': // (?>xxx) independent group
head = createGroup(true);
tail = root;
head.next = expr(tail);
head = tail = new Ques(head, Qtype.INDEPENDENT);
break;
case '<': // (?<xxx) look behind
ch = read();
if (ch != '=' && ch != '!') {
// named captured group
String name = groupname(ch);
if (namedGroups().containsKey(name))
throw error("Named capturing group <" + name
+ "> is already defined");
capturingGroup = true;
head = createGroup(false);
case ':' -> { // (?:xxx) pure group
head = createGroup(true);
tail = root;
namedGroups().put(name, capturingGroupCount-1);
head.next = expr(tail);
break;
}
int start = cursor;
head = createGroup(true);
tail = root;
head.next = expr(tail);
tail.next = LookBehindEndNode.INSTANCE;
TreeInfo info = new TreeInfo();
head.study(info);
if (info.maxValid == false) {
throw error("Look-behind group does not have "
+ "an obvious maximum length");
case '=', '!' -> { // (?=xxx) and (?!xxx) lookahead
head = createGroup(true);
tail = root;
head.next = expr(tail);
if (ch == '=') {
head = tail = new Pos(head);
} else {
head = tail = new Neg(head);
}
}
boolean hasSupplementary = findSupplementary(start, patternLength);
if (ch == '=') {
head = tail = (hasSupplementary ?
new BehindS(head, info.maxLength,
info.minLength) :
new Behind(head, info.maxLength,
info.minLength));
} else { // if (ch == '!')
head = tail = (hasSupplementary ?
new NotBehindS(head, info.maxLength,
info.minLength) :
new NotBehind(head, info.maxLength,
info.minLength));
case '>' -> { // (?>xxx) independent group
head = createGroup(true);
tail = root;
head.next = expr(tail);
head = tail = new Ques(head, Qtype.INDEPENDENT);
}
// clear all top-closure-nodes inside lookbehind
if (saveTCNCount < topClosureNodes.size())
topClosureNodes.subList(saveTCNCount, topClosureNodes.size()).clear();
break;
case '$':
case '@':
throw error("Unknown group type");
default: // (?xxx:) inlined match flags
unread();
addFlag();
ch = read();
if (ch == ')') {
return null; // Inline modifier only
case '<' -> { // (?<xxx) look behind
ch = read();
if (ch != '=' && ch != '!') {
// named captured group
String name = groupname(ch);
if (namedGroups().containsKey(name))
throw error("Named capturing group <" + name
+ "> is already defined");
capturingGroup = true;
head = createGroup(false);
tail = root;
namedGroups().put(name, capturingGroupCount - 1);
head.next = expr(tail);
break;
}
int start = cursor;
head = createGroup(true);
tail = root;
head.next = expr(tail);
tail.next = LookBehindEndNode.INSTANCE;
TreeInfo info = new TreeInfo();
head.study(info);
if (info.maxValid == false) {
throw error("Look-behind group does not have "
+ "an obvious maximum length");
}
boolean hasSupplementary = findSupplementary(start, patternLength);
if (ch == '=') {
head = tail = (hasSupplementary ?
new BehindS(head, info.maxLength,
info.minLength) :
new Behind(head, info.maxLength,
info.minLength));
} else { // if (ch == '!')
head = tail = (hasSupplementary ?
new NotBehindS(head, info.maxLength,
info.minLength) :
new NotBehind(head, info.maxLength,
info.minLength));
}
// clear all top-closure-nodes inside lookbehind
if (saveTCNCount < topClosureNodes.size())
topClosureNodes.subList(saveTCNCount, topClosureNodes.size()).clear();
}
if (ch != ':') {
throw error("Unknown inline modifier");
case '$', '@' -> throw error("Unknown group type");
default -> { // (?xxx:) inlined match flags
unread();
addFlag();
ch = read();
if (ch == ')') {
return null; // Inline modifier only
}
if (ch != ':') {
throw error("Unknown inline modifier");
}
head = createGroup(true);
tail = root;
head.next = expr(tail);
}
head = createGroup(true);
tail = root;
head.next = expr(tail);
break;
}
} else { // (xxx) a regular group
capturingGroup = true;

34
src/java.base/share/classes/java/util/regex/PrintPattern.java

@ -76,23 +76,23 @@ class PrintPattern {
}
private static String toStringCtype(int type) {
switch(type) {
case UPPER: return "ASCII.UPPER";
case LOWER: return "ASCII.LOWER";
case DIGIT: return "ASCII.DIGIT";
case SPACE: return "ASCII.SPACE";
case PUNCT: return "ASCII.PUNCT";
case CNTRL: return "ASCII.CNTRL";
case BLANK: return "ASCII.BLANK";
case UNDER: return "ASCII.UNDER";
case ASCII: return "ASCII.ASCII";
case ALPHA: return "ASCII.ALPHA";
case ALNUM: return "ASCII.ALNUM";
case GRAPH: return "ASCII.GRAPH";
case WORD: return "ASCII.WORD";
case XDIGIT: return "ASCII.XDIGIT";
default: return "ASCII ?";
}
return switch (type) {
case UPPER -> "ASCII.UPPER";
case LOWER -> "ASCII.LOWER";
case DIGIT -> "ASCII.DIGIT";
case SPACE -> "ASCII.SPACE";
case PUNCT -> "ASCII.PUNCT";
case CNTRL -> "ASCII.CNTRL";
case BLANK -> "ASCII.BLANK";
case UNDER -> "ASCII.UNDER";
case ASCII -> "ASCII.ASCII";
case ALPHA -> "ASCII.ALPHA";
case ALNUM -> "ASCII.ALNUM";
case GRAPH -> "ASCII.GRAPH";
case WORD -> "ASCII.WORD";
case XDIGIT -> "ASCII.XDIGIT";
default -> "ASCII ?";
};
}
private static String toString(Pattern.Node node) {

32
src/java.base/share/classes/java/util/stream/Nodes.java

@ -88,14 +88,12 @@ final class Nodes {
*/
@SuppressWarnings("unchecked")
static <T> Node<T> emptyNode(StreamShape shape) {
switch (shape) {
case REFERENCE: return (Node<T>) EMPTY_NODE;
case INT_VALUE: return (Node<T>) EMPTY_INT_NODE;
case LONG_VALUE: return (Node<T>) EMPTY_LONG_NODE;
case DOUBLE_VALUE: return (Node<T>) EMPTY_DOUBLE_NODE;
default:
throw new IllegalStateException("Unknown shape " + shape);
}
return (Node<T>) switch (shape) {
case REFERENCE -> EMPTY_NODE;
case INT_VALUE -> EMPTY_INT_NODE;
case LONG_VALUE -> EMPTY_LONG_NODE;
case DOUBLE_VALUE -> EMPTY_DOUBLE_NODE;
};
}
/**
@ -119,18 +117,12 @@ final class Nodes {
*/
@SuppressWarnings("unchecked")
static <T> Node<T> conc(StreamShape shape, Node<T> left, Node<T> right) {
switch (shape) {
case REFERENCE:
return new ConcNode<>(left, right);
case INT_VALUE:
return (Node<T>) new ConcNode.OfInt((Node.OfInt) left, (Node.OfInt) right);
case LONG_VALUE:
return (Node<T>) new ConcNode.OfLong((Node.OfLong) left, (Node.OfLong) right);
case DOUBLE_VALUE:
return (Node<T>) new ConcNode.OfDouble((Node.OfDouble) left, (Node.OfDouble) right);
default:
throw new IllegalStateException("Unknown shape " + shape);
}
return (Node<T>) switch (shape) {
case REFERENCE -> new ConcNode<>(left, right);
case INT_VALUE -> new ConcNode.OfInt((Node.OfInt) left, (Node.OfInt) right);
case LONG_VALUE -> new ConcNode.OfLong((Node.OfLong) left, (Node.OfLong) right);
case DOUBLE_VALUE -> new ConcNode.OfDouble((Node.OfDouble) left, (Node.OfDouble) right);
};
}
// Reference-based node methods

50
src/java.base/share/classes/java/util/zip/ZipOutputStream.java

@ -81,11 +81,11 @@ public class ZipOutputStream extends DeflaterOutputStream implements ZipConstant
private final ZipCoder zc;
private static int version(ZipEntry e) throws ZipException {
switch (e.method) {
case DEFLATED: return 20;
case STORED: return 10;
default: throw new ZipException("unsupported compression method");
}
return switch (e.method) {
case DEFLATED -> 20;
case STORED -> 10;
default -> throw new ZipException("unsupported compression method");
};
}
/**
@ -258,7 +258,7 @@ public class ZipOutputStream extends DeflaterOutputStream implements ZipConstant
if (current != null) {
ZipEntry e = current.entry;
switch (e.method) {
case DEFLATED:
case DEFLATED -> {
def.finish();
while (!def.finished()) {
deflate();
@ -282,15 +282,15 @@ public class ZipOutputStream extends DeflaterOutputStream implements ZipConstant
Long.toHexString(crc.getValue()) + ")");
}
} else {
e.size = def.getBytesRead();
e.size = def.getBytesRead();
e.csize = def.getBytesWritten();
e.crc = crc.getValue();
writeEXT(e);
}
def.reset();
written += e.csize;
break;
case STORED:
}
case STORED -> {
// we already know that both e.size and e.csize are the same
if (e.size != written - locoff) {
throw new ZipException(
@ -299,13 +299,12 @@ public class ZipOutputStream extends DeflaterOutputStream implements ZipConstant
}
if (e.crc != crc.getValue()) {
throw new ZipException(
"invalid entry crc-32 (expected 0x" +
Long.toHexString(e.crc) + " but got 0x" +
Long.toHexString(crc.getValue()) + ")");
"invalid entry crc-32 (expected 0x" +
Long.toHexString(e.crc) + " but got 0x" +
Long.toHexString(crc.getValue()) + ")");
}
break;
default:
throw new ZipException("invalid compression method");
}
default -> throw new ZipException("invalid compression method");
}
crc.reset();
current = null;
@ -336,19 +335,16 @@ public class ZipOutputStream extends DeflaterOutputStream implements ZipConstant
}
ZipEntry entry = current.entry;
switch (entry.method) {
case DEFLATED:
super.write(b, off, len);
break;
case STORED:
written += len;
if (written - locoff > entry.size) {
throw new ZipException(
"attempt to write past end of STORED entry");
case DEFLATED -> super.write(b, off, len);
case STORED -> {
written += len;
if (written - locoff > entry.size) {
throw new ZipException(
"attempt to write past end of STORED entry");
}
out.write(b, off, len);
}
out.write(b, off, len);
break;
default:
throw new ZipException("invalid compression method");
default -> throw new ZipException("invalid compression method");
}
crc.update(b, off, len);
}