import java.util.*; import java.util.zip.*; import java.util.List; import java.util.regex.*; import java.util.concurrent.*; import java.util.concurrent.atomic.*; import java.util.concurrent.locks.*; import javax.swing.*; import javax.swing.event.*; import javax.swing.text.*; import javax.swing.table.*; import java.io.*; import java.net.*; import java.lang.reflect.*; import java.lang.ref.*; import java.lang.management.*; import java.security.*; import java.security.spec.*; import java.awt.*; import java.awt.event.*; import java.awt.image.*; import javax.imageio.*; import java.math.*; import x30_pkg.x30_util; import static x30_pkg.x30_util.VF1; import static x30_pkg.x30_util.l; import static x30_pkg.x30_util.fail; import static x30_pkg.x30_util.indexOf; import static x30_pkg.x30_util.getOpt; import static x30_pkg.x30_util.setOpt; import static x30_pkg.x30_util.callOpt; import static x30_pkg.x30_util.newWeakHashMap; import static x30_pkg.x30_util.newDangerousWeakHashMap; import static x30_pkg.x30_util.get; import static x30_pkg.x30_util.get_raw; import static x30_pkg.x30_util.assertTrue; import static x30_pkg.x30_util.isHeadless; import static x30_pkg.x30_util.isAndroid; import static x30_pkg.x30_util.isTrue; import x30_pkg.x30_util.DynamicObject; import loadableUtils.utils; import static loadableUtils.utils._threadInfo; import static loadableUtils.utils._threadInheritInfo; import static loadableUtils.utils._threadInfo_addMakerAndRetriever; import static loadableUtils.utils.dm_currentModule; import static loadableUtils.utils.dm_current_mandatory; import static loadableUtils.utils.match; import static loadableUtils.utils.getOpt_raw; import static loadableUtils.utils.setOpt_raw; import static loadableUtils.utils.getField; import static loadableUtils.utils.fieldType; import static loadableUtils.utils.format3; import static loadableUtils.utils.vm_generalIdentityHashSet; import static loadableUtils.utils.vm_generalHashMap; import static loadableUtils.utils.vm_generalWeakSubMap; import static loadableUtils.utils.bindToComponent; import static loadableUtils.utils.struct; import static loadableUtils.utils.structure; import static loadableUtils.utils.loadPage; import static loadableUtils.utils.loadPage_utf8; import static loadableUtils.utils.loadPageSilentlyWithTimeout; import static loadableUtils.utils.loadPageSilently; import static loadableUtils.utils.loadSnippet; import static loadableUtils.utils.loadSnippetQuietly; import static loadableUtils.utils.sendToLocalBot; import static loadableUtils.utils.sendToLocalBotOpt; import static loadableUtils.utils.sendToLocalBotQuietly; import static loadableUtils.utils.componentPopupMenu; import static loadableUtils.utils.componentPopupMenu_top; import static loadableUtils.utils.componentPopupMenu_initForComponent; import static loadableUtils.utils.componentPopupMenu_getEvent; import static loadableUtils.utils.listPopupMenu; import static loadableUtils.utils.tablePopupMenu; import static loadableUtils.utils.tablePopupMenuFirst; import static loadableUtils.utils.rowSorter_setComparators; import static loadableUtils.utils.sexyTableWithoutDrag; import static loadableUtils.utils.dm_current_generic; import static loadableUtils.utils.dm_current_mandatory_generic; import static loadableUtils.utils.cset; import static loadableUtils.utils.DynamicObject_loading; import static loadableUtils.utils.concepts_unlisted; import static loadableUtils.utils.makePopupMenuConditional; import static loadableUtils.utils.makeConceptsTable_idWidth; import static loadableUtils.utils.showConceptsTable_afterUpdate; import static loadableUtils.utils.dynamicObjectIsLoading; import static loadableUtils.utils.rethrow; import static loadableUtils.utils.hasBot; import static loadableUtils.utils.concepts_internStringsLongerThan; import static loadableUtils.utils.concepts_setUnlistedByDefault; import static loadableUtils.utils.realMC_tl; import loadableUtils.utils.F0; import loadableUtils.utils.F1; import loadableUtils.utils.IF0; import loadableUtils.utils.IF1; import loadableUtils.utils.IVF1; import loadableUtils.utils.IVF2; import loadableUtils.utils.Matches; import loadableUtils.utils.BetterLabel; import loadableUtils.utils.SingleComponentPanel; import loadableUtils.utils.Snippet; import loadableUtils.utils.Q; import loadableUtils.utils.ImageSurface; import loadableUtils.utils.structure_Data; import loadableUtils.utils.structure_ClassInfo; import loadableUtils.utils.RGBImage; import loadableUtils.utils.RGB; import loadableUtils.utils.BWImage; import loadableUtils.utils.MakesBufferedImage; import loadableUtils.utils.MultiSet; import loadableUtils.utils.Concept; import loadableUtils.utils.Concepts; import loadableUtils.utils.RC; import loadableUtils.utils.IConceptIndex; import loadableUtils.utils.IConceptCounter; import loadableUtils.utils.IFieldIndex; import loadableUtils.utils.Derefable; import loadableUtils.utils.ImageSurfaceSelector; import loadableUtils.utils.SimpleCRUD; import loadableUtils.utils.PersistableThrowable; import loadableUtils.utils.DynModule; import loadableUtils.utils.DynPrintLog; import loadableUtils.utils.DynObjectTable; import loadableUtils.utils.DynImageSurface; import loadableUtils.utils.DynCalculatedList; import loadableUtils.utils.GlobalID; import loadableUtils.utils.Rect; import loadableUtils.utils.Pt; import loadableUtils.utils.SynchronizedArrayList; import loadableUtils.utils.SecretValue; import loadableUtils.utils.HCRUD; import loadableUtils.utils.HCRUD_Data; import loadableUtils.utils.HCRUD_Concepts; import loadableUtils.utils.ValueConverterForField; import loadableUtils.utils.DefaultValueConverterForField; import loadableUtils.utils.OrError; import loadableUtils.utils.HTML; import java.nio.charset.Charset; class main { static public class TreeEl { public ByteBuffer a = new ByteBuffer(); public DoubleBuffer b = new DoubleBuffer(); public IntBuffer c = new IntBuffer(); } static public class LetterPredictor extends DynPrintLog { public void start() { try { super.start(); startThread("Start", new Runnable() { public void run() { try { AutoCloseable __10 = enter(); try { try { ByteBuffer input2 = new ByteBuffer(toUTF8("hello hello hello hello hello hello")); int de1 = 3; int de2 = 16; String decode = "0."; byte[] alphabet = allBytes(); double[] weights = { 0.916, 0.88, 0.78, 0.96, 0.9, 0.83, 0.82, 0.54, 0.49, 0.25, 0.25, 0.27, 0.33, 0.53, 0.5, 0.53, 0.72 }; double[] weights2 = { 0.72, 0.86, 0.95, 0.93, 0.97 }; List tree = ll(new TreeEl()); int window_start = 1; int window_end = 15; double low = 1; double high = 1; double middle = 1; StringBuilder compressed = new StringBuilder(); for (int count2 = 0; count2 < 50000; count2++) { ByteBuffer window = new ByteBuffer(input2.subArray(window_start - 1, window_end)); window_start++; window_end++; int char_location = 15; int remove = 2; int char_index = 1; List> predictions = ll(pair(new ByteBuffer(alphabet), new DoubleBuffer(rep(0.00001, l(alphabet))))); int node = 0; while (!(char_index == 0 || char_location == 0) && window_end != 16) { if (char_location != 15) { byte _char = window.get(char_location - 1); char_index = tree.get(node).a.indexOf(_char) + 1; } char_location++; if (char_index != 0 && char_location == 16) { TreeEl el = tree.get(node); predictions.add(1, pair(el.a, el.b)); node = 0; char_location -= remove; remove++; } else if (char_index != 0) node = tree.get(node).c.get(char_index - 1); } Pair predict = pair(new ByteBuffer(), new DoubleBuffer()); int remaining = 1; for (int q = 0; q < l(predictions); q++) { Pair j = predictions.get(q); double sum2 = doubleSum(j.b); double w = sum2 / (l(j.b) == 226 ? 226 : l(j.b) < 6 ? 7 * l(j.b) * weights2[l(j.b) - 1] : l(j.b) * 7); w = w > 20 ? 0.96 : w > 10 ? 0.92 : w > 3 ? 0.89 : w > 1.5 ? 0.75 : w > 1 ? 0.64 : w > 0.7 ? 0.57 : w > 0.5 ? 0.5 : w > 0.4 ? 0.44 : w; double _25ofRoof = (w * weights[l(predictions) - 1 - q]) * remaining; remaining -= _25ofRoof; for (int g = 0; g < l(j.a); g++) { byte k = j.a.get(g); double freq = j.b.get(g); char_index = predict.a.indexOf(k) + 1; if (char_index == 0) { predict.a.add(k); predict.b.add((freq / sum2) * _25ofRoof); } else predict.b.set(char_index - 1, predict.b.get(char_index - 1) + (freq / sum2) * _25ofRoof); } } double summ = 1 - doubleSum(predict.b); int nPredict = l(predict.b); for (int n = 0; n < nPredict; n++) predict.b.set(n, predict.b.get(n) + summ / l(predict.b)); low = high; double decodepart = parseDouble("0." + substring(decode, de1 - 1, de2)); for (int m = 0; m < l(predict.a); m++) { byte x = predict.a.get(m); high = low; low -= predict.b.get(m) * middle; if (eq(decode, "0.") && x == last(window)) break; else if (high > decodepart && decodepart > low) { window.add(x); input2.add(x); break; } } char_location = lCommonPrefix(str(low), str(high)); compressed.append(substr(str(low), 2, char_location)); char_location -= 2; for (int count = 0; count < char_location; count++) { high *= 10; low *= 10; de1++; de2++; } middle = floor(low); high -= middle; low -= middle; middle = high - low; node = 0; for (byte i : window) { TreeEl el = tree.get(node); char_index = el.a.indexOf(i) + 1; if (char_index == 0) { el.a.add(i); el.b.add(1); el.c.add(node = l(tree)); tree.add(new TreeEl()); } else { el.b.set(char_index - 1, el.b.get(char_index - 1) + 1); node = el.c.get(char_index - 1); } } } print("compressed", compressed); } catch (Throwable __e) { _handleException(__e); } } finally { _close(__10); } } catch (Exception __e) { throw rethrow(__e); } } public String toString() { return "AutoCloseable __10 = enter(); try { try {\n ByteBuffer input2 = new ByteBuf..."; } }); } catch (Exception __e) { throw rethrow(__e); } } } static public boolean _moduleClass_LetterPredictor = true; static public String programID; static public void _onLoad_initUtils() { utils.__javax = javax(); } static public void _onLoad_defaultClassFinder() { setDefaultClassFinder(new F1() { public Class get(String name) { Class c = findClass_fullName(name); if (c != null) return c; if (name.startsWith("main$")) return loadableUtils.utils.findClass_fullName("loadableUtils.utils" + name.substring(4)); return null; } }); } static public ThreadLocal dynamicObjectIsLoading_threadLocal() { return DynamicObject_loading; } static volatile public Concepts mainConcepts; static public Concepts db_mainConcepts() { if (mainConcepts == null) mainConcepts = newConceptsWithClassFinder(getDBProgramID()); return mainConcepts; } static public void cleanMeUp_concepts() { if (db_mainConcepts() != null) db_mainConcepts().cleanMeUp(); } static public Thread startThread(Object runnable) { return startThread(defaultThreadName(), runnable); } static public Thread startThread(String name, Object runnable) { runnable = wrapAsActivity(runnable); return startThread(newThread(toRunnable(runnable), name)); } static public Thread startThread(Thread t) { _registerThread(t); t.start(); return t; } static public byte[] toUTF8(String s) { return toUtf8(s); } static public byte[] allBytes() { return arrayOfAllBytes(); } static public List ll(A... a) { ArrayList l = new ArrayList(a.length); if (a != null) for (A x : a) l.add(x); return l; } static public Pair pair(A a, B b) { return new Pair(a, b); } static public Pair pair(A a) { return new Pair(a, a); } static public String rep(int n, char c) { return repeat(c, n); } static public String rep(char c, int n) { return repeat(c, n); } static public List rep(A a, int n) { return repeat(a, n); } static public List rep(int n, A a) { return repeat(n, a); } static public double doubleSum(Iterable l) { double sum = 0; for (Double i : unnull(l)) if (i != null) sum += i; return sum; } static public double doubleSum(double... l) { double sum = 0; if (l != null) for (double i : l) sum += i; return sum; } static public double parseDouble(String s) { return Double.parseDouble(s); } static public String substring(String s, int x) { return substring(s, x, strL(s)); } static public String substring(String s, int x, int y) { if (s == null) return null; if (x < 0) x = 0; int n = s.length(); if (y < x) y = x; if (y > n) y = n; if (x >= y) return ""; return s.substring(x, y); } static public String substring(String s, CharSequence l) { return substring(s, l(l)); } static public boolean eq(Object a, Object b) { return a == b || a != null && b != null && a.equals(b); } static public A last(List l) { return empty(l) ? null : l.get(l.size() - 1); } static public char last(String s) { return empty(s) ? '#' : s.charAt(l(s) - 1); } static public int last(int[] a) { return l(a) != 0 ? a[l(a) - 1] : 0; } static public double last(double[] a) { return l(a) != 0 ? a[l(a) - 1] : 0; } static public A last(A[] a) { return l(a) != 0 ? a[l(a) - 1] : null; } static public A last(Iterator it) { A a = null; while (it.hasNext()) { ping(); a = it.next(); } return a; } static public A last(Collection l) { if (l == null) return null; if (l instanceof List) return (A) last(((List) l)); if (l instanceof SortedSet) return (A) last(((SortedSet) l)); Iterator it = iterator(l); A a = null; while (it.hasNext()) { ping(); a = it.next(); } return a; } static public A last(SortedSet l) { return l == null ? null : l.last(); } static public int last(IntBuffer buf) { return buf.get(buf.size() - 1); } static public byte last(ByteBuffer buf) { return buf.get(buf.size() - 1); } static public int lCommonPrefix(String a, String b) { int i = 0, n = Math.min(l(a), l(b)); while (i < n && a.charAt(i) == b.charAt(i)) ++i; return i; } static public String str(Object o) { return o == null ? "null" : o.toString(); } static public String str(char[] c) { return new String(c); } static public String substr(String s, int x) { return substring(s, x); } static public String substr(String s, int x, int y) { return substring(s, x, y); } static public double floor(double d) { return Math.floor(d); } static volatile public StringBuffer local_log = new StringBuffer(); static volatile public Appendable print_log = local_log; static volatile public int print_log_max = 1024 * 1024; static volatile public int local_log_max = 100 * 1024; static public boolean print_silent = false; static public Object print_byThread_lock = new Object(); static volatile public ThreadLocal print_byThread; static volatile public Object print_allThreads; static volatile public Object print_preprocess; static public void print() { print(""); } static public A print(String s, A o) { print((endsWithLetterOrDigit(s) ? s + ": " : s) + o); return o; } static public A print(A o) { ping_okInCleanUp(); if (print_silent) return o; String s = o + "\n"; print_noNewLine(s); return o; } static public void print_noNewLine(String s) { try { Object f = getThreadLocal(print_byThread_dontCreate()); if (f == null) f = print_allThreads; if (f != null) if (isFalse(f instanceof F1 ? ((F1) f).get(s) : callF(f, s))) return; } catch (Throwable e) { System.out.println(getStackTrace(e)); } print_raw(s); } static public void print_raw(String s) { if (print_preprocess != null) s = (String) callF(print_preprocess, s); s = fixNewLines(s); Appendable loc = local_log; Appendable buf = print_log; int loc_max = print_log_max; if (buf != loc && buf != null) { print_append(buf, s, print_log_max); loc_max = local_log_max; } if (loc != null) print_append(loc, s, loc_max); System.out.print(s); vmBus_send("printed", mc(), s); } static public void print_autoRotate() { } static volatile public PersistableThrowable _handleException_lastException; static public List _handleException_onException = synchroList(ll("printStackTrace2")); static public void _handleException(Throwable e) { _handleException_lastException = persistableThrowable(e); Throwable e2 = innerException(e); if (e2.getClass() == RuntimeException.class && eq(e2.getMessage(), "Thread cancelled.") || e2 instanceof InterruptedException) return; for (Object f : cloneList(_handleException_onException)) try { callF(f, e); } catch (Throwable e3) { try { printStackTrace2(e3); } catch (Throwable e4) { System.out.println(getStackTrace(e3)); System.out.println(getStackTrace(e4)); } } } static public void _close(AutoCloseable c) { if (c != null) try { c.close(); } catch (Throwable e) { if (c instanceof javax.imageio.stream.ImageOutputStream) return; else throw rethrow(e); } } static public Class javax() { return getJavaX(); } static public void setDefaultClassFinder(Object cf) { _defaultClassFinder_value = cf; } static public HashMap findClass_fullName_cache = new HashMap(); static public Class findClass_fullName(String name) { synchronized (findClass_fullName_cache) { if (findClass_fullName_cache.containsKey(name)) return findClass_fullName_cache.get(name); Class c; try { c = Class.forName(name); } catch (ClassNotFoundException e) { c = null; } findClass_fullName_cache.put(name, c); return c; } } static public AutoCloseable tempInterceptPrintIfNotIntercepted(F1 f) { return print_byThread().get() == null ? tempInterceptPrint(f) : null; } static public Throwable printStackTrace2(Throwable e) { print(getStackTrace2(e)); return e; } static public void printStackTrace2() { printStackTrace2(new Throwable()); } static public void printStackTrace2(String msg) { printStackTrace2(new Throwable(msg)); } static public Object _defaultClassFinder_value = defaultDefaultClassFinder(); static public Object _defaultClassFinder() { return _defaultClassFinder_value; } static public Concepts newConceptsWithClassFinder(String progID) { Concepts cc = new Concepts(progID); cc.classFinder = _defaultClassFinder(); return cc; } static public String getDBProgramID_id; static public String getDBProgramID() { return nempty(getDBProgramID_id) ? getDBProgramID_id : programIDWithCase(); } static public String defaultThreadName_name; static public String defaultThreadName() { if (defaultThreadName_name == null) defaultThreadName_name = "A thread by " + programID(); return defaultThreadName_name; } static public Runnable wrapAsActivity(Object r) { return toRunnable(r); } static public Thread newThread(Object runnable) { return new Thread(_topLevelErrorHandling(toRunnable(runnable))); } static public Thread newThread(Object runnable, String name) { if (name == null) name = defaultThreadName(); return new Thread(_topLevelErrorHandling(toRunnable(runnable)), name); } static public Thread newThread(String name, Object runnable) { return newThread(runnable, name); } static public Runnable toRunnable(final Object o) { if (o instanceof Runnable) return (Runnable) o; return new Runnable() { public void run() { try { callF(o); } catch (Exception __e) { throw rethrow(__e); } } public String toString() { return "callF(o)"; } }; } static public Map _registerThread_threads; static public Object _onRegisterThread; static public Thread _registerThread(Thread t) { if (_registerThread_threads == null) _registerThread_threads = newWeakHashMap(); _registerThread_threads.put(t, true); vm_generalWeakSubMap("thread2mc").put(t, weakRef(mc())); callF(_onRegisterThread, t); return t; } static public void _registerThread() { _registerThread(Thread.currentThread()); } static public byte[] toUtf8(String s) { try { return s.getBytes(utf8charset()); } catch (Exception __e) { throw rethrow(__e); } } static public byte[] arrayOfAllBytes() { byte[] x = new byte[256]; for (int i = 0; i < 256; i++) x[i] = (byte) i; return x; } static public String repeat(char c, int n) { n = Math.max(n, 0); char[] chars = new char[n]; for (int i = 0; i < n; i++) chars[i] = c; return new String(chars); } static public List repeat(A a, int n) { n = Math.max(n, 0); List l = new ArrayList(n); for (int i = 0; i < n; i++) l.add(a); return l; } static public List repeat(int n, A a) { return repeat(a, n); } static public String unnull(String s) { return s == null ? "" : s; } static public Collection unnull(Collection l) { return l == null ? emptyList() : l; } static public List unnull(List l) { return l == null ? emptyList() : l; } static public int[] unnull(int[] l) { return l == null ? emptyIntArray() : l; } static public char[] unnull(char[] l) { return l == null ? emptyCharArray() : l; } static public double[] unnull(double[] l) { return l == null ? emptyDoubleArray() : l; } static public Map unnull(Map l) { return l == null ? emptyMap() : l; } static public Iterable unnull(Iterable i) { return i == null ? emptyList() : i; } static public A[] unnull(A[] a) { return a == null ? (A[]) emptyObjectArray() : a; } static public BitSet unnull(BitSet b) { return b == null ? new BitSet() : b; } static public Pt unnull(Pt p) { return p == null ? new Pt() : p; } static public Pair unnull(Pair p) { return p != null ? p : new Pair(null, null); } static public long unnull(Long l) { return l == null ? 0L : l; } static public int strL(String s) { return s == null ? 0 : s.length(); } static public boolean empty(Collection c) { return c == null || c.isEmpty(); } static public boolean empty(Iterable c) { return c == null || !c.iterator().hasNext(); } static public boolean empty(CharSequence s) { return s == null || s.length() == 0; } static public boolean empty(Map map) { return map == null || map.isEmpty(); } static public boolean empty(Object[] o) { return o == null || o.length == 0; } static public boolean empty(Object o) { if (o instanceof Collection) return empty((Collection) o); if (o instanceof String) return empty((String) o); if (o instanceof Map) return empty((Map) o); if (o instanceof Object[]) return empty((Object[]) o); if (o instanceof byte[]) return empty((byte[]) o); if (o == null) return true; throw fail("unknown type for 'empty': " + getType(o)); } static public boolean empty(Iterator i) { return i == null || !i.hasNext(); } static public boolean empty(double[] a) { return a == null || a.length == 0; } static public boolean empty(float[] a) { return a == null || a.length == 0; } static public boolean empty(int[] a) { return a == null || a.length == 0; } static public boolean empty(long[] a) { return a == null || a.length == 0; } static public boolean empty(byte[] a) { return a == null || a.length == 0; } static public boolean empty(short[] a) { return a == null || a.length == 0; } static public boolean empty(MultiSet ms) { return ms == null || ms.isEmpty(); } static public boolean empty(File f) { return getFileSize(f) == 0; } static public boolean empty(IntBuffer b) { return b == null || b.isEmpty(); } static volatile public boolean ping_pauseAll = false; static public int ping_sleep = 100; static volatile public boolean ping_anyActions = false; static public Map ping_actions = newWeakHashMap(); static public ThreadLocal ping_isCleanUpThread = new ThreadLocal(); static public boolean ping() { if (ping_pauseAll || ping_anyActions) ping_impl(true); return true; } static public boolean ping_impl(boolean okInCleanUp) { try { if (ping_pauseAll && !isAWTThread()) { do Thread.sleep(ping_sleep); while (ping_pauseAll); return true; } if (ping_anyActions) { if (!okInCleanUp && !isTrue(ping_isCleanUpThread.get())) failIfUnlicensed(); Object action = null; synchronized (ping_actions) { if (!ping_actions.isEmpty()) { action = ping_actions.get(currentThread()); if (action instanceof Runnable) ping_actions.remove(currentThread()); if (ping_actions.isEmpty()) ping_anyActions = false; } } if (action instanceof Runnable) ((Runnable) action).run(); else if (eq(action, "cancelled")) throw fail("Thread cancelled."); } return false; } catch (Exception __e) { throw rethrow(__e); } } static public Iterator iterator(Iterable c) { return c == null ? emptyIterator() : c.iterator(); } static public boolean endsWithLetterOrDigit(String s) { return s != null && s.length() > 0 && Character.isLetterOrDigit(s.charAt(s.length() - 1)); } static public void ping_okInCleanUp() { if (ping_pauseAll || ping_anyActions) ping_impl(true); } static public Object getThreadLocal(Object o, String name) { ThreadLocal t = (ThreadLocal) (getOpt(o, name)); return t != null ? t.get() : null; } static public A getThreadLocal(ThreadLocal tl) { return tl == null ? null : tl.get(); } static public A getThreadLocal(ThreadLocal tl, A defaultValue) { return or(getThreadLocal(tl), defaultValue); } static public ThreadLocal print_byThread_dontCreate() { return print_byThread; } static public boolean isFalse(Object o) { return eq(false, o); } static public Object callF(Object f, Object... args) { try { if (f instanceof String) return callMC((String) f, args); return x30_util.callF(f, args); } catch (Exception __e) { throw rethrow(__e); } } static public A callF(F0 f) { return f == null ? null : f.get(); } static public A callF(IF0 f) { return f == null ? null : f.get(); } static public B callF(F1 f, A a) { return f == null ? null : f.get(a); } static public B callF(IF1 f, A a) { return f == null ? null : f.get(a); } static public void callF(VF1 f, A a) { if (f != null) f.get(a); } static public Object callMC(String method, Object... args) { return call(mc(), method, args); } static public Object call(Object o) { return callF(o); } static public Object call(Object o, String method, Object... args) { return call_withVarargs(o, method, args); } static public String getStackTrace(Throwable throwable) { lastException(throwable); return getStackTrace_noRecord(throwable); } static public String getStackTrace_noRecord(Throwable throwable) { StringWriter writer = new StringWriter(); throwable.printStackTrace(new PrintWriter(writer)); return hideCredentials(writer.toString()); } static public String getStackTrace() { return getStackTrace_noRecord(new Throwable()); } static public String fixNewLines(String s) { int i = indexOf(s, '\r'); if (i < 0) return s; int l = s.length(); StringBuilder out = new StringBuilder(l); out.append(s, 0, i); for (; i < l; i++) { char c = s.charAt(i); if (c != '\r') out.append(c); else { out.append('\n'); if (i + 1 < l && s.charAt(i + 1) == '\n') ++i; } } return out.toString(); } static public void print_append(Appendable buf, String s, int max) { try { synchronized (buf) { buf.append(s); if (buf instanceof StringBuffer) rotateStringBuffer(((StringBuffer) buf), max); else if (buf instanceof StringBuilder) rotateStringBuilder(((StringBuilder) buf), max); } } catch (Exception __e) { throw rethrow(__e); } } static public void vmBus_send(String msg, Object... args) { Object arg = vmBus_wrapArgs(args); pcallFAll(vm_busListeners_live(), msg, arg); pcallFAll(vm_busListenersByMessage_live().get(msg), msg, arg); } static public void vmBus_send(String msg) { vmBus_send(msg, (Object) null); } static public Class mc() { return main.class; } static public List synchroList() { return Collections.synchronizedList(new ArrayList()); } static public List synchroList(List l) { return Collections.synchronizedList(l); } static public PersistableThrowable persistableThrowable(Throwable e) { return e == null ? null : new PersistableThrowable(e); } static public Throwable innerException(Throwable e) { return getInnerException(e); } static public ArrayList cloneList(Iterable l) { return l instanceof Collection ? cloneList((Collection) l) : asList(l); } static public ArrayList cloneList(Collection l) { if (l == null) return new ArrayList(); synchronized (collectionMutex(l)) { return new ArrayList(l); } } static public Class __javax; static public Class getJavaX() { try { return __javax; } catch (Exception __e) { throw rethrow(__e); } } static public ThreadLocal print_byThread() { synchronized (print_byThread_lock) { if (print_byThread == null) print_byThread = new ThreadLocal(); } return print_byThread; } static public AutoCloseable tempInterceptPrint(F1 f) { return tempSetThreadLocal(print_byThread(), f); } static public String getStackTrace2(Throwable e) { return hideCredentials(getStackTrace(unwrapTrivialExceptionWraps(e)) + replacePrefix("java.lang.RuntimeException: ", "FAIL: ", hideCredentials(str(innerException2(e)))) + "\n"); } static public Object defaultDefaultClassFinder() { return new F1() { public Class get(String name) { Class c = findClass_fullName(name); if (c != null) return c; if (name.startsWith("loadableUtils.utils$")) return findClass_fullName("main" + name.substring(19)); return null; } }; } static public boolean nempty(Collection c) { return !empty(c); } static public boolean nempty(CharSequence s) { return !empty(s); } static public boolean nempty(Object[] o) { return !empty(o); } static public boolean nempty(byte[] o) { return !empty(o); } static public boolean nempty(int[] o) { return !empty(o); } static public boolean nempty(Map m) { return !empty(m); } static public boolean nempty(Iterator i) { return i != null && i.hasNext(); } static public boolean nempty(Object o) { return !empty(o); } static public boolean nempty(IntBuffer b) { return b != null && !b.isEmpty(); } static public String programIDWithCase() { return nempty(caseID()) ? programID() + "/" + quoteUnlessIdentifierOrInteger(caseID()) : programID(); } static public String programID() { return getProgramID(); } static public String programID(Object o) { return getProgramID(o); } static public Runnable _topLevelErrorHandling(final Runnable runnable) { final Object info = _threadInfo(); return new Runnable() { public void run() { try { try { _threadInheritInfo(info); runnable.run(); } catch (Throwable __e) { _handleException(__e); } } catch (Exception __e) { throw rethrow(__e); } } public String toString() { return "pcall {\r\n _threadInheritInfo(info);\r\n runnable.run();\r\n }"; } }; } static public WeakReference weakRef(A a) { return newWeakReference(a); } static public Charset utf8charset_cache; static public Charset utf8charset() { if (utf8charset_cache == null) utf8charset_cache = utf8charset_load(); return utf8charset_cache; } static public Charset utf8charset_load() { return Charset.forName("UTF-8"); } static public ArrayList emptyList() { return new ArrayList(); } static public ArrayList emptyList(int capacity) { return new ArrayList(max(0, capacity)); } static public ArrayList emptyList(Iterable l) { return l instanceof Collection ? emptyList(((Collection) l).size()) : emptyList(); } static public ArrayList emptyList(Object[] l) { return emptyList(l(l)); } static public ArrayList emptyList(Class c) { return new ArrayList(); } static public int[] emptyIntArray_a = new int[0]; static public int[] emptyIntArray() { return emptyIntArray_a; } static public char[] emptyCharArray = new char[0]; static public char[] emptyCharArray() { return emptyCharArray; } static public double[] emptyDoubleArray = new double[0]; static public double[] emptyDoubleArray() { return emptyDoubleArray; } static public Map emptyMap() { return new HashMap(); } static public Object[] emptyObjectArray_a = new Object[0]; static public Object[] emptyObjectArray() { return emptyObjectArray_a; } static public String getType(Object o) { return getClassName(o); } static public long getFileSize(String path) { return path == null ? 0 : new File(path).length(); } static public long getFileSize(File f) { return f == null ? 0 : f.length(); } static public boolean isAWTThread() { if (isAndroid()) return false; if (isHeadless()) return false; return isAWTThread_awt(); } static public boolean isAWTThread_awt() { return SwingUtilities.isEventDispatchThread(); } static public void failIfUnlicensed() { assertTrue("license off", licensed()); } static public Thread currentThread() { return Thread.currentThread(); } static public Iterator emptyIterator() { return Collections.emptyIterator(); } static public A or(A a, A b) { return a != null ? a : b; } static public Object call_withVarargs(Object o, String method, Object... args) { try { if (o == null) return null; if (o instanceof Class) { Class c = (Class) o; _MethodCache cache = callOpt_getCache(c); Method me = cache.findStaticMethod(method, args); if (me != null) return invokeMethod(me, null, args); List methods = cache.cache.get(method); if (methods != null) methodSearch: for (Method m : methods) { { if (!(m.isVarArgs())) continue; } { if (!(isStaticMethod(m))) continue; } Object[] newArgs = massageArgsForVarArgsCall(m, args); if (newArgs != null) return invokeMethod(m, null, newArgs); } throw fail("Method " + c.getName() + "." + method + "(" + joinWithComma(classNames(args)) + ") not found"); } else { Class c = o.getClass(); _MethodCache cache = callOpt_getCache(c); Method me = cache.findMethod(method, args); if (me != null) return invokeMethod(me, o, args); List methods = cache.cache.get(method); if (methods != null) methodSearch: for (Method m : methods) { { if (!(m.isVarArgs())) continue; } Object[] newArgs = massageArgsForVarArgsCall(m, args); if (newArgs != null) return invokeMethod(m, o, newArgs); } throw fail("Method " + c.getName() + "." + method + "(" + joinWithComma(classNames(args)) + ") not found"); } } catch (Exception __e) { throw rethrow(__e); } } static volatile public PersistableThrowable lastException_lastException; static public PersistableThrowable lastException() { return lastException_lastException; } static public void lastException(Throwable e) { lastException_lastException = persistableThrowable(e); } static public String hideCredentials(URL url) { return url == null ? null : hideCredentials(str(url)); } static public String hideCredentials(String url) { try { if (startsWithOneOf(url, "http://", "https://") && isAGIBlueDomain(hostNameFromURL(url))) return url; } catch (Throwable e) { print("HideCredentials", e); } return url.replaceAll("([&?])(_pass|key|cookie)=[^&\\s\"]*", "$1$2="); } static public String hideCredentials(Object o) { return hideCredentials(str(o)); } static public void rotateStringBuffer(StringBuffer buf, int max) { try { if (buf == null) return; synchronized (buf) { if (buf.length() <= max) return; try { int newLength = max / 2; int ofs = buf.length() - newLength; String newString = buf.substring(ofs); buf.setLength(0); buf.append("[...] ").append(newString); } catch (Exception e) { buf.setLength(0); } buf.trimToSize(); } } catch (Exception __e) { throw rethrow(__e); } } static public void rotateStringBuilder(StringBuilder buf, int max) { try { if (buf == null) return; synchronized (buf) { if (buf.length() <= max) return; try { int newLength = max / 2; int ofs = buf.length() - newLength; String newString = buf.substring(ofs); buf.setLength(0); buf.append("[...] ").append(newString); } catch (Exception e) { buf.setLength(0); } buf.trimToSize(); } } catch (Exception __e) { throw rethrow(__e); } } static public Object vmBus_wrapArgs(Object... args) { return empty(args) ? null : l(args) == 1 ? args[0] : args; } static public void pcallFAll(Collection l, Object... args) { if (l != null) for (Object f : cloneList(l)) pcallF(f, args); } static public void pcallFAll(Iterator it, Object... args) { while (it.hasNext()) pcallF(it.next(), args); } static public Set vm_busListeners_live_cache; static public Set vm_busListeners_live() { if (vm_busListeners_live_cache == null) vm_busListeners_live_cache = vm_busListeners_live_load(); return vm_busListeners_live_cache; } static public Set vm_busListeners_live_load() { return vm_generalIdentityHashSet("busListeners"); } static public Map vm_busListenersByMessage_live_cache; static public Map vm_busListenersByMessage_live() { if (vm_busListenersByMessage_live_cache == null) vm_busListenersByMessage_live_cache = vm_busListenersByMessage_live_load(); return vm_busListenersByMessage_live_cache; } static public Map vm_busListenersByMessage_live_load() { return vm_generalHashMap("busListenersByMessage"); } static public Throwable getInnerException(Throwable e) { if (e == null) return null; while (e.getCause() != null) e = e.getCause(); return e; } static public Throwable getInnerException(Runnable r) { return getInnerException(getException(r)); } static public ArrayList asList(A[] a) { return a == null ? new ArrayList() : new ArrayList(Arrays.asList(a)); } static public ArrayList asList(int[] a) { if (a == null) return null; ArrayList l = emptyList(a.length); for (int i : a) l.add(i); return l; } static public ArrayList asList(long[] a) { if (a == null) return null; ArrayList l = emptyList(a.length); for (long i : a) l.add(i); return l; } static public ArrayList asList(float[] a) { if (a == null) return null; ArrayList l = emptyList(a.length); for (float i : a) l.add(i); return l; } static public ArrayList asList(double[] a) { if (a == null) return null; ArrayList l = emptyList(a.length); for (double i : a) l.add(i); return l; } static public ArrayList asList(Iterable s) { if (s instanceof ArrayList) return (ArrayList) s; ArrayList l = new ArrayList(); if (s != null) for (A a : s) l.add(a); return l; } static public ArrayList asList(Enumeration e) { ArrayList l = new ArrayList(); if (e != null) while (e.hasMoreElements()) l.add(e.nextElement()); return l; } static public Object collectionMutex(List l) { return l; } static public Object collectionMutex(Object o) { if (o instanceof List) return o; String c = className(o); if (eq(c, "java.util.TreeMap$KeySet")) c = className(o = getOpt(o, "m")); else if (eq(c, "java.util.HashMap$KeySet")) c = className(o = get_raw(o, "this$0")); if (eqOneOf(c, "java.util.TreeMap$AscendingSubMap", "java.util.TreeMap$DescendingSubMap")) c = className(o = get_raw(o, "m")); return o; } static public AutoCloseable tempSetThreadLocal(final ThreadLocal tl, A a) { if (tl == null) return null; final A prev = setThreadLocal(tl, a); return new AutoCloseable() { public String toString() { return "tl.set(prev);"; } public void close() throws Exception { tl.set(prev); } }; } static public Throwable unwrapTrivialExceptionWraps(Throwable e) { if (e == null) return e; while (e.getClass() == RuntimeException.class && e.getCause() != null && eq(e.getMessage(), str(e.getCause()))) e = e.getCause(); return e; } static public String replacePrefix(String prefix, String replacement, String s) { if (!startsWith(s, prefix)) return s; return replacement + substring(s, l(prefix)); } static public Throwable innerException2(Throwable e) { if (e == null) return null; while (empty(e.getMessage()) && e.getCause() != null) e = e.getCause(); return e; } static volatile public String caseID_caseID; static public String caseID() { return caseID_caseID; } static public void caseID(String id) { caseID_caseID = id; } static public String quoteUnlessIdentifierOrInteger(String s) { return quoteIfNotIdentifierOrInteger(s); } static public String getProgramID() { return nempty(programID) ? formatSnippetIDOpt(programID) : "?"; } static public String getProgramID(Class c) { String id = (String) getOpt(c, "programID"); if (nempty(id)) return formatSnippetID(id); return "?"; } static public String getProgramID(Object o) { return getProgramID(getMainClass(o)); } static public WeakReference newWeakReference(A a) { return a == null ? null : new WeakReference(a); } static public int max(int a, int b) { return Math.max(a, b); } static public int max(int a, int b, int c) { return max(max(a, b), c); } static public long max(int a, long b) { return Math.max((long) a, b); } static public long max(long a, long b) { return Math.max(a, b); } static public double max(int a, double b) { return Math.max((double) a, b); } static public float max(float a, float b) { return Math.max(a, b); } static public double max(double a, double b) { return Math.max(a, b); } static public int max(Collection c) { int x = Integer.MIN_VALUE; for (int i : c) x = max(x, i); return x; } static public double max(double[] c) { if (c.length == 0) return Double.MIN_VALUE; double x = c[0]; for (int i = 1; i < c.length; i++) x = Math.max(x, c[i]); return x; } static public float max(float[] c) { if (c.length == 0) return Float.MAX_VALUE; float x = c[0]; for (int i = 1; i < c.length; i++) x = Math.max(x, c[i]); return x; } static public byte max(byte[] c) { byte x = -128; for (byte d : c) if (d > x) x = d; return x; } static public short max(short[] c) { short x = -0x8000; for (short d : c) if (d > x) x = d; return x; } static public int max(int[] c) { int x = Integer.MIN_VALUE; for (int d : c) if (d > x) x = d; return x; } static public String getClassName(Object o) { return o == null ? "null" : o instanceof Class ? ((Class) o).getName() : o.getClass().getName(); } static volatile public boolean licensed_yes = true; static public boolean licensed() { if (!licensed_yes) return false; ping_okInCleanUp(); return true; } static public void licensed_off() { licensed_yes = false; } static final public Map callOpt_cache = newDangerousWeakHashMap(); static public Object callOpt_cached(Object o, String methodName, Object... args) { try { if (o == null) return null; if (o instanceof Class) { Class c = (Class) o; _MethodCache cache = callOpt_getCache(c); Method me = cache.findMethod(methodName, args); if (me == null || (me.getModifiers() & Modifier.STATIC) == 0) return null; return invokeMethod(me, null, args); } else { Class c = o.getClass(); _MethodCache cache = callOpt_getCache(c); Method me = cache.findMethod(methodName, args); if (me == null) return null; return invokeMethod(me, o, args); } } catch (Exception __e) { throw rethrow(__e); } } static public _MethodCache callOpt_getCache(Class c) { synchronized (callOpt_cache) { _MethodCache cache = callOpt_cache.get(c); if (cache == null) callOpt_cache.put(c, cache = new _MethodCache(c)); return cache; } } static public Object invokeMethod(Method m, Object o, Object... args) { try { try { return m.invoke(o, args); } catch (InvocationTargetException e) { throw rethrow(getExceptionCause(e)); } catch (IllegalArgumentException e) { throw new IllegalArgumentException(e.getMessage() + " - was calling: " + m + ", args: " + joinWithSpace(classNames(args))); } } catch (Exception __e) { throw rethrow(__e); } } static public boolean isStaticMethod(Method m) { return methodIsStatic(m); } static public Object[] massageArgsForVarArgsCall(Method m, Object[] args) { Class[] types = m.getParameterTypes(); int n = types.length - 1, nArgs = args.length; if (nArgs < n) return null; for (int i = 0; i < n; i++) if (!argumentCompatibleWithType(args[i], types[i])) return null; Class varArgType = types[n].getComponentType(); for (int i = n; i < nArgs; i++) if (!argumentCompatibleWithType(args[i], varArgType)) return null; Object[] newArgs = new Object[n + 1]; arraycopy(args, 0, newArgs, 0, n); Object[] varArgs = arrayOfType(varArgType, nArgs - n); arraycopy(args, n, varArgs, 0, nArgs - n); newArgs[n] = varArgs; return newArgs; } static public String joinWithComma(Collection c) { return join(", ", c); } static public String joinWithComma(String... c) { return join(", ", c); } static public String joinWithComma(Pair p) { return p == null ? "" : joinWithComma(str(p.a), str(p.b)); } static public List classNames(Collection l) { return getClassNames(l); } static public List classNames(Object[] l) { return getClassNames(Arrays.asList(l)); } static public boolean startsWithOneOf(String s, String... l) { for (String x : l) if (startsWith(s, x)) return true; return false; } static public boolean startsWithOneOf(String s, Matches m, String... l) { for (String x : l) if (startsWith(s, x, m)) return true; return false; } static public boolean isAGIBlueDomain(String domain) { return domainIsUnder(domain, theAGIBlueDomain()); } static public String hostNameFromURL(String url) { try { return new URL(url).getHost(); } catch (Exception __e) { throw rethrow(__e); } } static public Object pcallF(Object f, Object... args) { return pcallFunction(f, args); } static public A pcallF(F0 f) { try { return f == null ? null : f.get(); } catch (Throwable __e) { return null; } } static public B pcallF(F1 f, A a) { try { return f == null ? null : f.get(a); } catch (Throwable __e) { return null; } } static public void pcallF(VF1 f, A a) { try { if (f != null) f.get(a); } catch (Throwable __e) { _handleException(__e); } } static public Throwable getException(Runnable r) { try { callF(r); return null; } catch (Throwable e) { return e; } } static public String className(Object o) { return getClassName(o); } static public boolean eqOneOf(Object o, Object... l) { for (Object x : l) if (eq(o, x)) return true; return false; } static public A setThreadLocal(ThreadLocal tl, A value) { if (tl == null) return null; A old = tl.get(); tl.set(value); return old; } static public boolean startsWith(String a, String b) { return a != null && a.startsWith(unnull(b)); } static public boolean startsWith(String a, char c) { return nemptyString(a) && a.charAt(0) == c; } static public boolean startsWith(String a, String b, Matches m) { if (!startsWith(a, b)) return false; m.m = new String[] { substring(a, strL(b)) }; return true; } static public boolean startsWith(List a, List b) { if (a == null || listL(b) > listL(a)) return false; for (int i = 0; i < listL(b); i++) if (neq(a.get(i), b.get(i))) return false; return true; } static public String quoteIfNotIdentifierOrInteger(String s) { if (s == null) return null; return isJavaIdentifier(s) || isInteger(s) ? s : quote(s); } static public String formatSnippetIDOpt(String s) { return isSnippetID(s) ? formatSnippetID(s) : s; } static public String formatSnippetID(String id) { return "#" + parseSnippetID(id); } static public String formatSnippetID(long id) { return "#" + id; } static public Class getMainClass() { return mc(); } static public Class getMainClass(Object o) { try { if (o == null) return null; if (o instanceof Class && eq(((Class) o).getName(), "x30")) return (Class) o; ClassLoader cl = (o instanceof Class ? (Class) o : o.getClass()).getClassLoader(); return cl == null ? null : cl.loadClass("main"); } catch (Exception __e) { throw rethrow(__e); } } static public Throwable getExceptionCause(Throwable e) { Throwable c = e.getCause(); return c != null ? c : e; } static public String joinWithSpace(Iterable c) { return join(" ", c); } static public String joinWithSpace(String... c) { return join(" ", c); } static public boolean methodIsStatic(Method m) { return (m.getModifiers() & Modifier.STATIC) != 0; } static public boolean argumentCompatibleWithType(Object arg, Class type) { return arg == null ? !type.isPrimitive() : isInstanceX(type, arg); } static public void arraycopy(Object[] a, Object[] b) { if (a != null && b != null) arraycopy(a, 0, b, 0, Math.min(a.length, b.length)); } static public void arraycopy(Object src, int srcPos, Object dest, int destPos, int n) { if (n != 0) System.arraycopy(src, srcPos, dest, destPos, n); } static public A[] arrayOfType(Class type, int n) { return makeArray(type, n); } static public A[] arrayOfType(int n, Class type) { return arrayOfType(type, n); } public static String join(String glue, Iterable strings) { if (strings == null) return ""; if (strings instanceof Collection) { if (((Collection) strings).size() == 1) return str(first(((Collection) strings))); } StringBuilder buf = new StringBuilder(); Iterator i = strings.iterator(); if (i.hasNext()) { buf.append(i.next()); while (i.hasNext()) buf.append(glue).append(i.next()); } return buf.toString(); } public static String join(String glue, String... strings) { return join(glue, Arrays.asList(strings)); } static public String join(Iterable strings) { return join("", strings); } static public String join(Iterable strings, String glue) { return join(glue, strings); } public static String join(String[] strings) { return join("", strings); } static public String join(String glue, Pair p) { return p == null ? "" : str(p.a) + glue + str(p.b); } static public List getClassNames(Collection l) { List out = new ArrayList(); if (l != null) for (Object o : l) out.add(o == null ? null : getClassName(o)); return out; } static public boolean domainIsUnder(String domain, String mainDomain) { return eqic(domain, mainDomain) || ewic(domain, "." + mainDomain); } static public String theAGIBlueDomain() { return "agi.blue"; } static public Object pcallFunction(Object f, Object... args) { try { return callFunction(f, args); } catch (Throwable __e) { _handleException(__e); } return null; } static public boolean nemptyString(String s) { return s != null && s.length() > 0; } static public int listL(Collection l) { return l == null ? 0 : l.size(); } static public boolean neq(Object a, Object b) { return !eq(a, b); } static public boolean isJavaIdentifier(String s) { if (empty(s) || !Character.isJavaIdentifierStart(s.charAt(0))) return false; for (int i = 1; i < s.length(); i++) if (!Character.isJavaIdentifierPart(s.charAt(i))) return false; return true; } static public boolean isInteger(String s) { int n = l(s); if (n == 0) return false; int i = 0; if (s.charAt(0) == '-') if (++i >= n) return false; while (i < n) { char c = s.charAt(i); if (c < '0' || c > '9') return false; ++i; } return true; } static public String quote(Object o) { if (o == null) return "null"; return quote(str(o)); } static public String quote(String s) { if (s == null) return "null"; StringBuilder out = new StringBuilder((int) (l(s) * 1.5 + 2)); quote_impl(s, out); return out.toString(); } static public void quote_impl(String s, StringBuilder out) { out.append('"'); int l = s.length(); for (int i = 0; i < l; i++) { char c = s.charAt(i); if (c == '\\' || c == '"') out.append('\\').append(c); else if (c == '\r') out.append("\\r"); else if (c == '\n') out.append("\\n"); else if (c == '\t') out.append("\\t"); else if (c == '\0') out.append("\\0"); else out.append(c); } out.append('"'); } public static boolean isSnippetID(String s) { try { parseSnippetID(s); return true; } catch (RuntimeException e) { return false; } } public static long parseSnippetID(String snippetID) { long id = Long.parseLong(shortenSnippetID(snippetID)); if (id == 0) throw fail("0 is not a snippet ID"); return id; } static public boolean isInstanceX(Class type, Object arg) { if (type == boolean.class) return arg instanceof Boolean; if (type == int.class) return arg instanceof Integer; if (type == long.class) return arg instanceof Long; if (type == float.class) return arg instanceof Float; if (type == short.class) return arg instanceof Short; if (type == char.class) return arg instanceof Character; if (type == byte.class) return arg instanceof Byte; if (type == double.class) return arg instanceof Double; return type.isInstance(arg); } static public A[] makeArray(Class type, int n) { return (A[]) Array.newInstance(type, n); } static public Object first(Object list) { return first((Iterable) list); } static public A first(List list) { return empty(list) ? null : list.get(0); } static public A first(A[] bla) { return bla == null || bla.length == 0 ? null : bla[0]; } static public A first(IterableIterator i) { return first((Iterator) i); } static public A first(Iterator i) { return i == null || !i.hasNext() ? null : i.next(); } static public A first(Iterable i) { if (i == null) return null; Iterator it = i.iterator(); return it.hasNext() ? it.next() : null; } static public Character first(String s) { return empty(s) ? null : s.charAt(0); } static public Character first(CharSequence s) { return empty(s) ? null : s.charAt(0); } static public A first(Pair p) { return p == null ? null : p.a; } static public Byte first(byte[] l) { return empty(l) ? null : l[0]; } static public int first(IntBuffer buf) { return buf.get(0); } static public byte first(ByteBuffer buf) { return buf.get(0); } static public boolean eqic(String a, String b) { if ((a == null) != (b == null)) return false; if (a == null) return true; return a.equalsIgnoreCase(b); } static public boolean eqic(char a, char b) { if (a == b) return true; char u1 = Character.toUpperCase(a); char u2 = Character.toUpperCase(b); if (u1 == u2) return true; return Character.toLowerCase(u1) == Character.toLowerCase(u2); } static public boolean ewic(String a, String b) { return endsWithIgnoreCase(a, b); } static public boolean ewic(String a, String b, Matches m) { return endsWithIgnoreCase(a, b, m); } static public Object callFunction(Object f, Object... args) { return callF(f, args); } static public String shortenSnippetID(String snippetID) { if (snippetID.startsWith("#")) snippetID = snippetID.substring(1); String httpBlaBla = "http://tinybrain.de/"; if (snippetID.startsWith(httpBlaBla)) snippetID = snippetID.substring(httpBlaBla.length()); return "" + parseLong(snippetID); } static public String asString(Object o) { return o == null ? null : o.toString(); } static public boolean endsWithIgnoreCase(String a, String b) { int la = l(a), lb = l(b); return la >= lb && regionMatchesIC(a, la - lb, b, 0, lb); } static public boolean endsWithIgnoreCase(String a, String b, Matches m) { if (!endsWithIgnoreCase(a, b)) return false; if (m != null) m.m = new String[] { substring(a, 0, l(a) - l(b)) }; return true; } static public long parseLong(String s) { if (empty(s)) return 0; return Long.parseLong(dropSuffix("L", s)); } static public long parseLong(Object s) { return Long.parseLong((String) s); } static public boolean regionMatchesIC(String a, int offsetA, String b, int offsetB, int len) { return a != null && a.regionMatches(true, offsetA, b, offsetB, len); } static public String dropSuffix(String suffix, String s) { return s.endsWith(suffix) ? s.substring(0, l(s) - l(suffix)) : s; } static public class DoubleBuffer implements Iterable { public double[] data; public int size; public DoubleBuffer() { } public DoubleBuffer(int size) { if (size != 0) data = new double[size]; } public DoubleBuffer(Iterable l) { this(l(l)); addAll(l); } public DoubleBuffer(double[] data) { this.data = data; size = l(data); } public void add(double i) { if (size >= lDoubleArray(data)) { data = resizeDoubleArray(data, Math.max(1, toInt(Math.min(maximumSafeArraySize(), lDoubleArray(data) * 2L)))); if (size >= data.length) throw fail("DoubleBuffer too large: " + size); } data[size++] = i; } public void addAll(Iterable l) { if (l != null) for (double i : l) add(i); } public double[] toArray() { return size == 0 ? null : resizeDoubleArray(data, size); } public List toList() { return doubleArrayToList(data, 0, size); } public List asVirtualList() { return new RandomAccessAbstractList() { public int size() { return size; } public Double get(int i) { return DoubleBuffer.this.get(i); } public Double set(int i, Double val) { Double a = get(i); data[i] = val; return a; } }; } public void reset() { size = 0; } public void clear() { reset(); } public int size() { return size; } public boolean isEmpty() { return size == 0; } public double get(int idx) { if (idx >= size) throw fail("Index out of range: " + idx + "/" + size); return data[idx]; } public void set(int idx, double value) { if (idx >= size) throw fail("Index out of range: " + idx + "/" + size); data[idx] = value; } public double popLast() { if (size == 0) throw fail("empty buffer"); return data[--size]; } public double last() { return data[size - 1]; } public double nextToLast() { return data[size - 2]; } public String toString() { return squareBracket(joinWithSpace(toList())); } public Iterator iterator() { return new IterableIterator() { public int i = 0; public boolean hasNext() { return i < size; } public Double next() { return data[i++]; } }; } public void trimToSize() { data = resizeDoubleArray(data, size); } public int indexOf(double b) { for (int i = 0; i < size; i++) if (data[i] == b) return i; return -1; } public double[] subArray(int start, int end) { return subDoubleArray(data, start, min(end, size)); } } final static public class _MethodCache { final public Class c; final public HashMap> cache = new HashMap(); public _MethodCache(Class c) { this.c = c; _init(); } public void _init() { Class _c = c; while (_c != null) { for (Method m : _c.getDeclaredMethods()) if (!isAbstract(m) && !reflection_isForbiddenMethod(m)) multiMapPut(cache, m.getName(), makeAccessible(m)); _c = _c.getSuperclass(); } for (Class intf : allInterfacesImplementedBy(c)) for (Method m : intf.getDeclaredMethods()) if (m.isDefault() && !reflection_isForbiddenMethod(m)) multiMapPut(cache, m.getName(), makeAccessible(m)); } public Method findMethod(String method, Object[] args) { try { List m = cache.get(method); if (m == null) return null; int n = m.size(); for (int i = 0; i < n; i++) { Method me = m.get(i); if (call_checkArgs(me, args, false)) return me; } return null; } catch (Exception __e) { throw rethrow(__e); } } public Method findStaticMethod(String method, Object[] args) { try { List m = cache.get(method); if (m == null) return null; int n = m.size(); for (int i = 0; i < n; i++) { Method me = m.get(i); if (isStaticMethod(me) && call_checkArgs(me, args, false)) return me; } return null; } catch (Exception __e) { throw rethrow(__e); } } } static public class IntBuffer implements Iterable { public int[] data; public int size; public IntBuffer() { } public IntBuffer(int size) { if (size != 0) data = new int[size]; } public IntBuffer(Iterable l) { this(l(l)); addAll(l); } public void add(int i) { if (size >= lIntArray(data)) { data = resizeIntArray(data, Math.max(1, toInt(Math.min(maximumSafeArraySize(), lIntArray(data) * 2L)))); if (size >= data.length) throw fail("IntBuffer too large: " + size); } data[size++] = i; } public void addAll(Iterable l) { if (l != null) for (int i : l) add(i); } public int[] toArray() { return size == 0 ? null : resizeIntArray(data, size); } public List toList() { return intArrayToList(data, 0, size); } public List asVirtualList() { return new RandomAccessAbstractList() { public int size() { return size; } public Integer get(int i) { return IntBuffer.this.get(i); } public Integer set(int i, Integer val) { Integer a = get(i); data[i] = val; return a; } }; } public void reset() { size = 0; } public void clear() { reset(); } public int size() { return size; } public boolean isEmpty() { return size == 0; } public int get(int idx) { if (idx >= size) throw fail("Index out of range: " + idx + "/" + size); return data[idx]; } public void set(int idx, int value) { if (idx >= size) throw fail("Index out of range: " + idx + "/" + size); data[idx] = value; } public int popLast() { if (size == 0) throw fail("empty buffer"); return data[--size]; } public int last() { return data[size - 1]; } public int nextToLast() { return data[size - 2]; } public String toString() { return squareBracket(joinWithSpace(toList())); } public Iterator iterator() { return new IterableIterator() { public int i = 0; public boolean hasNext() { return i < size; } public Integer next() { return data[i++]; } }; } public IntegerIterator integerIterator() { return new IntegerIterator() { public int i = 0; public boolean hasNext() { return i < size; } public int next() { return data[i++]; } public String toString() { return "Iterator@" + i + " over " + IntBuffer.this; } }; } public void trimToSize() { data = resizeIntArray(data, size); } } static public class ByteBuffer implements Iterable { public byte[] data; public int size; public ByteBuffer() { } public ByteBuffer(int size) { if (size != 0) data = new byte[size]; } public ByteBuffer(Iterable l) { this(l(l)); addAll(l); } public ByteBuffer(byte[] data) { this.data = data; size = l(data); } public void add(byte i) { if (size >= lByteArray(data)) { data = resizeByteArray(data, Math.max(1, toInt(Math.min(maximumSafeArraySize(), lByteArray(data) * 2L)))); if (size >= data.length) throw fail("ByteBuffer too large: " + size); } data[size++] = i; } public void addAll(Iterable l) { if (l != null) for (byte i : l) add(i); } public byte[] toArray() { return size == 0 ? null : resizeByteArray(data, size); } public List toList() { return byteArrayToList(data, 0, size); } public List asVirtualList() { return new RandomAccessAbstractList() { public int size() { return size; } public Byte get(int i) { return ByteBuffer.this.get(i); } public Byte set(int i, Byte val) { Byte a = get(i); data[i] = val; return a; } }; } public void reset() { size = 0; } public void clear() { reset(); } public int size() { return size; } public boolean isEmpty() { return size == 0; } public byte get(int idx) { if (idx >= size) throw fail("Index out of range: " + idx + "/" + size); return data[idx]; } public void set(int idx, byte value) { if (idx >= size) throw fail("Index out of range: " + idx + "/" + size); data[idx] = value; } public byte popLast() { if (size == 0) throw fail("empty buffer"); return data[--size]; } public byte last() { return data[size - 1]; } public byte nextToLast() { return data[size - 2]; } public String toString() { return squareBracket(joinWithSpace(toList())); } public Iterator iterator() { return new IterableIterator() { public int i = 0; public boolean hasNext() { return i < size; } public Byte next() { return data[i++]; } }; } public void trimToSize() { data = resizeByteArray(data, size); } public int indexOf(byte b) { for (int i = 0; i < size; i++) if (data[i] == b) return i; return -1; } public byte[] subArray(int start, int end) { return subByteArray(data, start, min(end, size)); } } static public class Pair implements Comparable> { public A a; public B b; public Pair() { } public Pair(A a, B b) { this.b = b; this.a = a; } public int hashCode() { return hashCodeFor(a) + 2 * hashCodeFor(b); } public boolean equals(Object o) { if (o == this) return true; if (!(o instanceof Pair)) return false; Pair t = (Pair) o; return eq(a, t.a) && eq(b, t.b); } public String toString() { return "<" + a + ", " + b + ">"; } public int compareTo(Pair p) { if (p == null) return 1; int i = ((Comparable) a).compareTo(p.a); if (i != 0) return i; return ((Comparable) b).compareTo(p.b); } } static abstract public class IterableIterator implements Iterator, Iterable { public Iterator iterator() { return this; } public void remove() { unsupportedOperation(); } } abstract static public class IntegerIterator { abstract public boolean hasNext(); abstract public int next(); } abstract static public class RandomAccessAbstractList extends AbstractList implements RandomAccess { } static public void addAll(Collection c, Iterable b) { if (c != null && b != null) for (A a : b) c.add(a); } static public boolean addAll(Collection c, Collection b) { return c != null && b != null && c.addAll(b); } static public boolean addAll(Collection c, B... b) { return c != null && c.addAll(Arrays.asList(b)); } static public Map addAll(Map a, Map b) { if (a != null) a.putAll(b); return a; } static public int lDoubleArray(double[] a) { return a == null ? 0 : a.length; } static public double[] resizeDoubleArray(double[] a, int n) { if (n == l(a)) return a; double[] b = new double[n]; arraycopy(a, 0, b, 0, min(l(a), n)); return b; } static public int toInt(Object o) { if (o == null) return 0; if (o instanceof Number) return ((Number) o).intValue(); if (o instanceof String) return parseInt(((String) o)); if (o instanceof Boolean) return boolToInt(((Boolean) o)); throw fail("woot not int: " + getClassName(o)); } static public int toInt(long l) { if (l != (int) l) throw fail("Too large for int: " + l); return (int) l; } static public int maximumSafeArraySize() { return Integer.MAX_VALUE - 8; } static public void add(BitSet bs, int i) { bs.set(i); } static public boolean add(Collection c, A a) { return c != null && c.add(a); } static public void add(Container c, Component x) { addToContainer(c, x); } static public ArrayList toList(A[] a) { return asList(a); } static public ArrayList toList(int[] a) { return asList(a); } static public ArrayList toList(Set s) { return asList(s); } static public ArrayList toList(Iterable s) { return asList(s); } static public ArrayList doubleArrayToList(double[] a) { if (a == null) return null; return doubleArrayToList(a, 0, a.length); } static public ArrayList doubleArrayToList(double[] a, int from, int to) { if (a == null) return null; ArrayList l = new ArrayList<>(to - from); for (int i = from; i < to; i++) l.add(a[i]); return l; } static public List asVirtualList(A[] a) { return wrapArrayAsList(a); } static public A set(A o, String field, Object value) { if (o == null) return null; if (o instanceof Class) set((Class) o, field, value); else try { Field f = set_findField(o.getClass(), field); makeAccessible(f); smartSet(f, o, value); } catch (Exception e) { throw new RuntimeException(e); } return o; } static public void set(Class c, String field, Object value) { if (c == null) return; try { Field f = set_findStaticField(c, field); makeAccessible(f); smartSet(f, null, value); } catch (Exception e) { throw new RuntimeException(e); } } static public Field set_findStaticField(Class c, String field) { Class _c = c; do { for (Field f : _c.getDeclaredFields()) if (f.getName().equals(field) && (f.getModifiers() & java.lang.reflect.Modifier.STATIC) != 0) return f; _c = _c.getSuperclass(); } while (_c != null); throw new RuntimeException("Static field '" + field + "' not found in " + c.getName()); } static public Field set_findField(Class c, String field) { Class _c = c; do { for (Field f : _c.getDeclaredFields()) if (f.getName().equals(field)) return f; _c = _c.getSuperclass(); } while (_c != null); throw new RuntimeException("Field '" + field + "' not found in " + c.getName()); } static public A popLast(List l) { return liftLast(l); } static public List popLast(int n, List l) { return liftLast(n, l); } static public A nextToLast(List l) { return get(l, l(l) - 2); } static public String squareBracket(String s) { return "[" + s + "]"; } static public double[] subDoubleArray(double[] b, int start) { return subDoubleArray(b, start, l(b)); } static public double[] subDoubleArray(double[] b, int start, int end) { start = max(start, 0); end = min(end, l(b)); if (start == 0 && end == l(b)) return b; if (start >= end) return new double[0]; double[] x = new double[end - start]; System.arraycopy(b, start, x, 0, end - start); return x; } static public int min(int a, int b) { return Math.min(a, b); } static public long min(long a, long b) { return Math.min(a, b); } static public float min(float a, float b) { return Math.min(a, b); } static public float min(float a, float b, float c) { return min(min(a, b), c); } static public double min(double a, double b) { return Math.min(a, b); } static public double min(double[] c) { double x = Double.MAX_VALUE; for (double d : c) x = Math.min(x, d); return x; } static public float min(float[] c) { float x = Float.MAX_VALUE; for (float d : c) x = Math.min(x, d); return x; } static public byte min(byte[] c) { byte x = 127; for (byte d : c) if (d < x) x = d; return x; } static public short min(short[] c) { short x = 0x7FFF; for (short d : c) if (d < x) x = d; return x; } static public int min(int[] c) { int x = Integer.MAX_VALUE; for (int d : c) if (d < x) x = d; return x; } static public boolean isAbstract(Class c) { return (c.getModifiers() & Modifier.ABSTRACT) != 0; } static public boolean isAbstract(Method m) { return (m.getModifiers() & Modifier.ABSTRACT) != 0; } static public boolean reflection_isForbiddenMethod(Method m) { return m.getDeclaringClass() == Object.class && eqOneOf(m.getName(), "finalize", "clone", "registerNatives"); } static public void multiMapPut(Map> map, A a, B b) { List l = map.get(a); if (l == null) map.put(a, l = new ArrayList()); l.add(b); } static public Field makeAccessible(Field f) { try { f.setAccessible(true); } catch (Throwable e) { vmBus_send("makeAccessible_error", e, f); } return f; } static public Method makeAccessible(Method m) { try { m.setAccessible(true); } catch (Throwable e) { vmBus_send("makeAccessible_error", e, m); } return m; } static public Constructor makeAccessible(Constructor c) { try { c.setAccessible(true); } catch (Throwable e) { vmBus_send("makeAccessible_error", e, c); } return c; } static public Set allInterfacesImplementedBy(Class c) { if (c == null) return null; HashSet set = new HashSet(); allInterfacesImplementedBy_find(c, set); return set; } static public void allInterfacesImplementedBy_find(Class c, Set set) { if (c.isInterface() && !set.add(c)) return; do { for (Class intf : c.getInterfaces()) allInterfacesImplementedBy_find(intf, set); } while ((c = c.getSuperclass()) != null); } static public Method findMethod(Object o, String method, Object... args) { return findMethod_cached(o, method, args); } static public boolean findMethod_checkArgs(Method m, Object[] args, boolean debug) { Class[] types = m.getParameterTypes(); if (types.length != args.length) { if (debug) System.out.println("Bad parameter length: " + args.length + " vs " + types.length); return false; } for (int i = 0; i < types.length; i++) if (!(args[i] == null || isInstanceX(types[i], args[i]))) { if (debug) System.out.println("Bad parameter " + i + ": " + args[i] + " vs " + types[i]); return false; } return true; } static public boolean call_checkArgs(Method m, Object[] args, boolean debug) { Class[] types = m.getParameterTypes(); if (types.length != args.length) { if (debug) print("Bad parameter length: " + args.length + " vs " + types.length); return false; } for (int i = 0; i < types.length; i++) { Object arg = args[i]; if (!(arg == null ? !types[i].isPrimitive() : isInstanceX(types[i], arg))) { if (debug) print("Bad parameter " + i + ": " + arg + " vs " + types[i]); return false; } } return true; } static public Method findStaticMethod(Class c, String method, Object... args) { Class _c = c; while (c != null) { for (Method m : c.getDeclaredMethods()) { if (!m.getName().equals(method)) continue; if ((m.getModifiers() & Modifier.STATIC) == 0 || !findStaticMethod_checkArgs(m, args)) continue; return m; } c = c.getSuperclass(); } return null; } static public boolean findStaticMethod_checkArgs(Method m, Object[] args) { Class[] types = m.getParameterTypes(); if (types.length != args.length) return false; for (int i = 0; i < types.length; i++) if (!(args[i] == null || isInstanceX(types[i], args[i]))) return false; return true; } static public int lIntArray(int[] a) { return a == null ? 0 : a.length; } static public int[] resizeIntArray(int[] a, int n) { if (n == lIntArray(a)) return a; int[] b = new int[n]; arraycopy(a, 0, b, 0, Math.min(lIntArray(a), n)); return b; } static public ArrayList intArrayToList(int[] a) { if (a == null) return null; return intArrayToList(a, 0, a.length); } static public ArrayList intArrayToList(int[] a, int from, int to) { if (a == null) return null; ArrayList l = new ArrayList<>(to - from); for (int i = from; i < to; i++) l.add(a[i]); return l; } static public IntegerIterator integerIterator(int[] l) { return l == null ? null : new IntegerIterator() { public int i = 0; public boolean hasNext() { return i < l.length; } public int next() { return l[i++]; } }; } static public int lByteArray(byte[] a) { return a == null ? 0 : a.length; } static public byte[] resizeByteArray(byte[] a, int n) { if (n == l(a)) return a; byte[] b = new byte[n]; arraycopy(a, 0, b, 0, min(l(a), n)); return b; } static public ArrayList byteArrayToList(byte[] a) { if (a == null) return null; return byteArrayToList(a, 0, a.length); } static public ArrayList byteArrayToList(byte[] a, int from, int to) { if (a == null) return null; ArrayList l = new ArrayList<>(to - from); for (int i = from; i < to; i++) l.add(a[i]); return l; } static public byte[] subByteArray(byte[] b, int start) { return subByteArray(b, start, l(b)); } static public byte[] subByteArray(byte[] b, int start, int end) { start = max(start, 0); end = min(end, l(b)); if (start == 0 && end == l(b)) return b; if (start >= end) return new byte[0]; byte[] x = new byte[end - start]; System.arraycopy(b, start, x, 0, end - start); return x; } static public int hashCodeFor(Object a) { return a == null ? 0 : a.hashCode(); } static public UnsupportedOperationException unsupportedOperation() { throw new UnsupportedOperationException(); } static public int parseInt(String s) { return emptyString(s) ? 0 : Integer.parseInt(s); } static public int parseInt(char c) { return Integer.parseInt(str(c)); } static public int boolToInt(boolean b) { return b ? 1 : 0; } static public void addToContainer(Container a, Component... b) { if (a == null) return; { swing(new Runnable() { public void run() { try { for (Component c : unnull(b)) if (c != null) a.add(c); } catch (Exception __e) { throw rethrow(__e); } } public String toString() { return "for (Component c : unnull(b))\r\n if (c != null) \r\n a.add(c);"; } }); } } static public List wrapArrayAsList(A[] a) { return a == null ? null : Arrays.asList(a); } static public void smartSet(Field f, Object o, Object value) throws Exception { try { f.set(o, value); } catch (Exception e) { Class type = f.getType(); if (type == int.class && value instanceof Long) value = ((Long) value).intValue(); if (type == LinkedHashMap.class && value instanceof Map) { f.set(o, asLinkedHashMap((Map) value)); return; } try { if (f.getType() == Concept.Ref.class) { f.set(o, ((Concept) o).new Ref((Concept) value)); return; } if (o instanceof Concept.Ref) { f.set(o, ((Concept.Ref) o).get()); return; } } catch (Throwable _e) { } throw e; } } static public A liftLast(List l) { if (empty(l)) return null; int i = l(l) - 1; A a = l.get(i); l.remove(i); return a; } static public List liftLast(int n, List l) { int i = l(l) - n; List part = cloneSubList(l, i); removeSubList(l, i); return part; } static public Method findMethod_cached(Object o, String method, Object... args) { try { if (o == null) return null; if (o instanceof Class) { _MethodCache cache = callOpt_getCache(((Class) o)); List methods = cache.cache.get(method); if (methods != null) for (Method m : methods) if (isStaticMethod(m) && findMethod_checkArgs(m, args, false)) return m; return null; } else { _MethodCache cache = callOpt_getCache(o.getClass()); List methods = cache.cache.get(method); if (methods != null) for (Method m : methods) if (findMethod_checkArgs(m, args, false)) return m; return null; } } catch (Exception __e) { throw rethrow(__e); } } static public boolean emptyString(String s) { return s == null || s.length() == 0; } static public Object swing(Object f) { return swingAndWait(f); } static public A swing(F0 f) { return (A) swingAndWait(f); } static public A swing(IF0 f) { return (A) swingAndWait(f); } static public LinkedHashMap asLinkedHashMap(Map map) { if (map instanceof LinkedHashMap) return (LinkedHashMap) map; LinkedHashMap m = new LinkedHashMap(); if (map != null) synchronized (collectionMutex(map)) { m.putAll(map); } return m; } static public List cloneSubList(List l, int startIndex, int endIndex) { return newSubList(l, startIndex, endIndex); } static public List cloneSubList(List l, int startIndex) { return newSubList(l, startIndex); } static public void removeSubList(List l, int from, int to) { if (l != null) subList(l, from, to).clear(); } static public void removeSubList(List l, int from) { if (l != null) subList(l, from).clear(); } static public void swingAndWait(Runnable r) { try { if (isAWTThread()) r.run(); else EventQueue.invokeAndWait(addThreadInfoToRunnable(r)); } catch (Exception __e) { throw rethrow(__e); } } static public Object swingAndWait(final Object f) { if (isAWTThread()) return callF(f); else { final Var result = new Var(); swingAndWait(new Runnable() { public void run() { try { result.set(callF(f)); } catch (Exception __e) { throw rethrow(__e); } } public String toString() { return "result.set(callF(f));"; } }); return result.get(); } } static public List newSubList(List l, int startIndex, int endIndex) { return cloneList(subList(l, startIndex, endIndex)); } static public List newSubList(List l, int startIndex) { return cloneList(subList(l, startIndex)); } static public List subList(List l, int startIndex) { return subList(l, startIndex, l(l)); } static public List subList(int startIndex, int endIndex, List l) { return subList(l, startIndex, endIndex); } static public List subList(List l, int startIndex, int endIndex) { if (l == null) return null; int n = l(l); startIndex = Math.max(0, startIndex); endIndex = Math.min(n, endIndex); if (startIndex >= endIndex) return ll(); if (startIndex == 0 && endIndex == n) return l; return l.subList(startIndex, endIndex); } static public Runnable addThreadInfoToRunnable(final Object r) { final Object info = _threadInfo(); return info == null ? asRunnable(r) : new Runnable() { public void run() { try { _inheritThreadInfo(info); callF(r); } catch (Exception __e) { throw rethrow(__e); } } public String toString() { return "_inheritThreadInfo(info); callF(r);"; } }; } static public Runnable asRunnable(Object o) { return toRunnable(o); } static public void _inheritThreadInfo(Object info) { _threadInheritInfo(info); } static public class Var implements IVar { public Var() { } public Var(A v) { this.v = v; } public A v; public synchronized void set(A a) { if (v != a) { v = a; notifyAll(); } } public synchronized A get() { return v; } public synchronized boolean has() { return v != null; } public synchronized void clear() { v = null; } public String toString() { return str(get()); } } static public interface IVar extends IF0 { public void set(A a); public A get(); default public boolean has() { return get() != null; } default public void clear() { set(null); } } }