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Scala example source code file (BoxesRunTime.java)
The BoxesRunTime.java Scala example source code/* __ *\ ** ________ ___ / / ___ Scala API ** ** / __/ __// _ | / / / _ | (c) 2006-2013, LAMP/EPFL ** ** __\ \/ /__/ __ |/ /__/ __ | http://scala-lang.org/ ** ** /____/\___/_/ |_/____/_/ | | ** ** |/ ** \* */ package scala.runtime; import scala.math.ScalaNumber; /** An object (static class) that defines methods used for creating, * reverting, and calculating with, boxed values. There are four classes * of methods in this object: * - Convenience boxing methods which call the static valueOf method * on the boxed class, thus utilizing the JVM boxing cache. * - Convenience unboxing methods returning default value on null. * - The generalised comparison method to be used when an object may * be a boxed value. * - Standard value operators for boxed number and quasi-number values. * * @author Gilles Dubochet * @author Martin Odersky * @contributor Stepan Koltsov * @version 2.0 */ public final class BoxesRunTime { private static final int CHAR = 0, BYTE = 1, SHORT = 2, INT = 3, LONG = 4, FLOAT = 5, DOUBLE = 6, OTHER = 7; /** We don't need to return BYTE and SHORT, as everything which might * care widens to INT. */ private static int typeCode(Object a) { if (a instanceof java.lang.Integer) return INT; if (a instanceof java.lang.Double) return DOUBLE; if (a instanceof java.lang.Long) return LONG; if (a instanceof java.lang.Character) return CHAR; if (a instanceof java.lang.Float) return FLOAT; if ((a instanceof java.lang.Byte) || (a instanceof java.lang.Short)) return INT; return OTHER; } private static String boxDescription(Object a) { return "" + a.getClass().getSimpleName() + "(" + a + ")"; } /* BOXING ... BOXING ... BOXING ... BOXING ... BOXING ... BOXING ... BOXING ... BOXING */ public static java.lang.Boolean boxToBoolean(boolean b) { return java.lang.Boolean.valueOf(b); } public static java.lang.Character boxToCharacter(char c) { return java.lang.Character.valueOf(c); } public static java.lang.Byte boxToByte(byte b) { return java.lang.Byte.valueOf(b); } public static java.lang.Short boxToShort(short s) { return java.lang.Short.valueOf(s); } public static java.lang.Integer boxToInteger(int i) { return java.lang.Integer.valueOf(i); } public static java.lang.Long boxToLong(long l) { return java.lang.Long.valueOf(l); } public static java.lang.Float boxToFloat(float f) { return java.lang.Float.valueOf(f); } public static java.lang.Double boxToDouble(double d) { // System.out.println("box " + d); // (new Throwable()).printStackTrace(); return java.lang.Double.valueOf(d); } /* UNBOXING ... UNBOXING ... UNBOXING ... UNBOXING ... UNBOXING ... UNBOXING ... UNBOXING */ public static boolean unboxToBoolean(Object b) { return b == null ? false : ((java.lang.Boolean)b).booleanValue(); } public static char unboxToChar(Object c) { return c == null ? 0 : ((java.lang.Character)c).charValue(); } public static byte unboxToByte(Object b) { return b == null ? 0 : ((java.lang.Byte)b).byteValue(); } public static short unboxToShort(Object s) { return s == null ? 0 : ((java.lang.Short)s).shortValue(); } public static int unboxToInt(Object i) { return i == null ? 0 : ((java.lang.Integer)i).intValue(); } public static long unboxToLong(Object l) { return l == null ? 0 : ((java.lang.Long)l).longValue(); } public static float unboxToFloat(Object f) { return f == null ? 0.0f : ((java.lang.Float)f).floatValue(); } public static double unboxToDouble(Object d) { // System.out.println("unbox " + d); return d == null ? 0.0d : ((java.lang.Double)d).doubleValue(); } /* COMPARISON ... COMPARISON ... COMPARISON ... COMPARISON ... COMPARISON ... COMPARISON */ public static boolean equals(Object x, Object y) { if (x == y) return true; return equals2(x, y); } /** Since all applicable logic has to be present in the equals method of a ScalaNumber * in any case, we dispatch to it as soon as we spot one on either side. */ public static boolean equals2(Object x, Object y) { if (x instanceof java.lang.Number) return equalsNumObject((java.lang.Number)x, y); if (x instanceof java.lang.Character) return equalsCharObject((java.lang.Character)x, y); if (x == null) return y == null; return x.equals(y); } public static boolean equalsNumObject(java.lang.Number xn, Object y) { if (y instanceof java.lang.Number) return equalsNumNum(xn, (java.lang.Number)y); if (y instanceof java.lang.Character) return equalsNumChar(xn, (java.lang.Character)y); if (xn == null) return y == null; return xn.equals(y); } public static boolean equalsNumNum(java.lang.Number xn, java.lang.Number yn) { int xcode = typeCode(xn); int ycode = typeCode(yn); switch (ycode > xcode ? ycode : xcode) { case INT: return xn.intValue() == yn.intValue(); case LONG: return xn.longValue() == yn.longValue(); case FLOAT: return xn.floatValue() == yn.floatValue(); case DOUBLE: return xn.doubleValue() == yn.doubleValue(); default: if ((yn instanceof ScalaNumber) && !(xn instanceof ScalaNumber)) return yn.equals(xn); } if (xn == null) return yn == null; return xn.equals(yn); } public static boolean equalsCharObject(java.lang.Character xc, Object y) { if (y instanceof java.lang.Character) return xc.charValue() == ((java.lang.Character)y).charValue(); if (y instanceof java.lang.Number) return equalsNumChar((java.lang.Number)y, xc); if (xc == null) return y == null; return xc.equals(y); } private static boolean equalsNumChar(java.lang.Number xn, java.lang.Character yc) { if (yc == null) return xn == null; char ch = yc.charValue(); switch (typeCode(xn)) { case INT: return xn.intValue() == ch; case LONG: return xn.longValue() == ch; case FLOAT: return xn.floatValue() == ch; case DOUBLE: return xn.doubleValue() == ch; default: return xn.equals(yc); } } /** Hashcode algorithm is driven by the requirements imposed * by primitive equality semantics, namely that equal objects * have equal hashCodes. The first priority are the integral/char * types, which already have the same hashCodes for the same * values except for Long. So Long's hashCode is altered to * conform to Int's for all values in Int's range. * * Float is problematic because it's far too small to hold * all the Ints, so for instance Int.MaxValue.toFloat claims * to be == to each of the largest 64 Ints. There is no way * to preserve equals/hashCode alignment without compromising * the hashCode distribution, so Floats are only guaranteed * to have the same hashCode for whole Floats in the range * Short.MinValue to Short.MaxValue (2^16 total.) * * Double has its hashCode altered to match the entire Int range, * but is not guaranteed beyond that. (But could/should it be? * The hashCode is only 32 bits so this is a more tractable * issue than Float's, but it might be better simply to exclude it.) * * Note: BigInt and BigDecimal, being arbitrary precision, could * be made consistent with all other types for the Int range, but * as yet have not. * * Note: Among primitives, Float.NaN != Float.NaN, but the boxed * versions are equal. This still needs reconciliation. */ public static int hashFromLong(java.lang.Long n) { int iv = n.intValue(); if (iv == n.longValue()) return iv; else return n.hashCode(); } public static int hashFromDouble(java.lang.Double n) { int iv = n.intValue(); double dv = n.doubleValue(); if (iv == dv) return iv; long lv = n.longValue(); if (lv == dv) return java.lang.Long.valueOf(lv).hashCode(); float fv = n.floatValue(); if (fv == dv) return java.lang.Float.valueOf(fv).hashCode(); else return n.hashCode(); } public static int hashFromFloat(java.lang.Float n) { int iv = n.intValue(); float fv = n.floatValue(); if (iv == fv) return iv; long lv = n.longValue(); if (lv == fv) return java.lang.Long.valueOf(lv).hashCode(); else return n.hashCode(); } public static int hashFromNumber(java.lang.Number n) { if (n instanceof java.lang.Long) return hashFromLong((java.lang.Long)n); else if (n instanceof java.lang.Double) return hashFromDouble((java.lang.Double)n); else if (n instanceof java.lang.Float) return hashFromFloat((java.lang.Float)n); else return n.hashCode(); } public static int hashFromObject(Object a) { if (a instanceof Number) return hashFromNumber((Number)a); else return a.hashCode(); } private static int unboxCharOrInt(Object arg1, int code) { if (code == CHAR) return ((java.lang.Character) arg1).charValue(); else return ((java.lang.Number) arg1).intValue(); } private static long unboxCharOrLong(Object arg1, int code) { if (code == CHAR) return ((java.lang.Character) arg1).charValue(); else return ((java.lang.Number) arg1).longValue(); } private static float unboxCharOrFloat(Object arg1, int code) { if (code == CHAR) return ((java.lang.Character) arg1).charValue(); else return ((java.lang.Number) arg1).floatValue(); } private static double unboxCharOrDouble(Object arg1, int code) { if (code == CHAR) return ((java.lang.Character) arg1).charValue(); else return ((java.lang.Number) arg1).doubleValue(); } /* OPERATORS ... OPERATORS ... OPERATORS ... OPERATORS ... OPERATORS ... OPERATORS ... OPERATORS ... OPERATORS */ /** arg1 + arg2 */ public static Object add(Object arg1, Object arg2) throws NoSuchMethodException { int code1 = typeCode(arg1); int code2 = typeCode(arg2); int maxcode = (code1 < code2) ? code2 : code1; if (maxcode <= INT) { return boxToInteger(unboxCharOrInt(arg1, code1) + unboxCharOrInt(arg2, code2)); } if (maxcode <= LONG) { return boxToLong(unboxCharOrLong(arg1, code1) + unboxCharOrLong(arg2, code2)); } if (maxcode <= FLOAT) { return boxToFloat(unboxCharOrFloat(arg1, code1) + unboxCharOrFloat(arg2, code2)); } if (maxcode <= DOUBLE) { return boxToDouble(unboxCharOrDouble(arg1, code1) + unboxCharOrDouble(arg2, code2)); } throw new NoSuchMethodException(); } /** arg1 - arg2 */ public static Object subtract(Object arg1, Object arg2) throws NoSuchMethodException { int code1 = typeCode(arg1); int code2 = typeCode(arg2); int maxcode = (code1 < code2) ? code2 : code1; if (maxcode <= INT) { return boxToInteger(unboxCharOrInt(arg1, code1) - unboxCharOrInt(arg2, code2)); } if (maxcode <= LONG) { return boxToLong(unboxCharOrLong(arg1, code1) - unboxCharOrLong(arg2, code2)); } if (maxcode <= FLOAT) { return boxToFloat(unboxCharOrFloat(arg1, code1) - unboxCharOrFloat(arg2, code2)); } if (maxcode <= DOUBLE) { return boxToDouble(unboxCharOrDouble(arg1, code1) - unboxCharOrDouble(arg2, code2)); } throw new NoSuchMethodException(); } /** arg1 * arg2 */ public static Object multiply(Object arg1, Object arg2) throws NoSuchMethodException { int code1 = typeCode(arg1); int code2 = typeCode(arg2); int maxcode = (code1 < code2) ? code2 : code1; if (maxcode <= INT) { return boxToInteger(unboxCharOrInt(arg1, code1) * unboxCharOrInt(arg2, code2)); } if (maxcode <= LONG) { return boxToLong(unboxCharOrLong(arg1, code1) * unboxCharOrLong(arg2, code2)); } if (maxcode <= FLOAT) { return boxToFloat(unboxCharOrFloat(arg1, code1) * unboxCharOrFloat(arg2, code2)); } if (maxcode <= DOUBLE) { return boxToDouble(unboxCharOrDouble(arg1, code1) * unboxCharOrDouble(arg2, code2)); } throw new NoSuchMethodException(); } /** arg1 / arg2 */ public static Object divide(Object arg1, Object arg2) throws NoSuchMethodException { int code1 = typeCode(arg1); int code2 = typeCode(arg2); int maxcode = (code1 < code2) ? code2 : code1; if (maxcode <= INT) return boxToInteger(unboxCharOrInt(arg1, code1) / unboxCharOrInt(arg2, code2)); if (maxcode <= LONG) return boxToLong(unboxCharOrLong(arg1, code1) / unboxCharOrLong(arg2, code2)); if (maxcode <= FLOAT) return boxToFloat(unboxCharOrFloat(arg1, code1) / unboxCharOrFloat(arg2, code2)); if (maxcode <= DOUBLE) return boxToDouble(unboxCharOrDouble(arg1, code1) / unboxCharOrDouble(arg2, code2)); throw new NoSuchMethodException(); } /** arg1 % arg2 */ public static Object takeModulo(Object arg1, Object arg2) throws NoSuchMethodException { int code1 = typeCode(arg1); int code2 = typeCode(arg2); int maxcode = (code1 < code2) ? code2 : code1; if (maxcode <= INT) return boxToInteger(unboxCharOrInt(arg1, code1) % unboxCharOrInt(arg2, code2)); if (maxcode <= LONG) return boxToLong(unboxCharOrLong(arg1, code1) % unboxCharOrLong(arg2, code2)); if (maxcode <= FLOAT) return boxToFloat(unboxCharOrFloat(arg1, code1) % unboxCharOrFloat(arg2, code2)); if (maxcode <= DOUBLE) return boxToDouble(unboxCharOrDouble(arg1, code1) % unboxCharOrDouble(arg2, code2)); throw new NoSuchMethodException(); } /** arg1 >> arg2 */ public static Object shiftSignedRight(Object arg1, Object arg2) throws NoSuchMethodException { int code1 = typeCode(arg1); int code2 = typeCode(arg2); if (code1 <= INT) { int val1 = unboxCharOrInt(arg1, code1); if (code2 <= INT) { int val2 = unboxCharOrInt(arg2, code2); return boxToInteger(val1 >> val2); } if (code2 <= LONG) { long val2 = unboxCharOrLong(arg2, code2); return boxToInteger(val1 >> val2); } } if (code1 <= LONG) { long val1 = unboxCharOrLong(arg1, code1); if (code2 <= INT) { int val2 = unboxCharOrInt(arg2, code2); return boxToLong(val1 >> val2); } if (code2 <= LONG) { long val2 = unboxCharOrLong(arg2, code2); return boxToLong(val1 >> val2); } } throw new NoSuchMethodException(); } /** arg1 << arg2 */ public static Object shiftSignedLeft(Object arg1, Object arg2) throws NoSuchMethodException { int code1 = typeCode(arg1); int code2 = typeCode(arg2); if (code1 <= INT) { int val1 = unboxCharOrInt(arg1, code1); if (code2 <= INT) { int val2 = unboxCharOrInt(arg2, code2); return boxToInteger(val1 << val2); } if (code2 <= LONG) { long val2 = unboxCharOrLong(arg2, code2); return boxToInteger(val1 << val2); } } if (code1 <= LONG) { long val1 = unboxCharOrLong(arg1, code1); if (code2 <= INT) { int val2 = unboxCharOrInt(arg2, code2); return boxToLong(val1 << val2); } if (code2 <= LONG) { long val2 = unboxCharOrLong(arg2, code2); return boxToLong(val1 << val2); } } throw new NoSuchMethodException(); } /** arg1 >>> arg2 */ public static Object shiftLogicalRight(Object arg1, Object arg2) throws NoSuchMethodException { int code1 = typeCode(arg1); int code2 = typeCode(arg2); if (code1 <= INT) { int val1 = unboxCharOrInt(arg1, code1); if (code2 <= INT) { int val2 = unboxCharOrInt(arg2, code2); return boxToInteger(val1 >>> val2); } if (code2 <= LONG) { long val2 = unboxCharOrLong(arg2, code2); return boxToInteger(val1 >>> val2); } } if (code1 <= LONG) { long val1 = unboxCharOrLong(arg1, code1); if (code2 <= INT) { int val2 = unboxCharOrInt(arg2, code2); return boxToLong(val1 >>> val2); } if (code2 <= LONG) { long val2 = unboxCharOrLong(arg2, code2); return boxToLong(val1 >>> val2); } } throw new NoSuchMethodException(); } /** -arg */ public static Object negate(Object arg) throws NoSuchMethodException { int code = typeCode(arg); if (code <= INT) { int val = unboxCharOrInt(arg, code); return boxToInteger(-val); } if (code <= LONG) { long val = unboxCharOrLong(arg, code); return boxToLong(-val); } if (code <= FLOAT) { float val = unboxCharOrFloat(arg, code); return boxToFloat(-val); } if (code <= DOUBLE) { double val = unboxCharOrDouble(arg, code); return boxToDouble(-val); } throw new NoSuchMethodException(); } /** +arg */ public static Object positive(Object arg) throws NoSuchMethodException { int code = typeCode(arg); if (code <= INT) { return boxToInteger(+unboxCharOrInt(arg, code)); } if (code <= LONG) { return boxToLong(+unboxCharOrLong(arg, code)); } if (code <= FLOAT) { return boxToFloat(+unboxCharOrFloat(arg, code)); } if (code <= DOUBLE) { return boxToDouble(+unboxCharOrDouble(arg, code)); } throw new NoSuchMethodException(); } /** arg1 & arg2 */ public static Object takeAnd(Object arg1, Object arg2) throws NoSuchMethodException { if ((arg1 instanceof Boolean) || (arg2 instanceof Boolean)) { if ((arg1 instanceof Boolean) && (arg2 instanceof Boolean)) return boxToBoolean(((java.lang.Boolean) arg1).booleanValue() & ((java.lang.Boolean) arg2).booleanValue()); else throw new NoSuchMethodException(); } int code1 = typeCode(arg1); int code2 = typeCode(arg2); int maxcode = (code1 < code2) ? code2 : code1; if (maxcode <= INT) return boxToInteger(unboxCharOrInt(arg1, code1) & unboxCharOrInt(arg2, code2)); if (maxcode <= LONG) return boxToLong(unboxCharOrLong(arg1, code1) & unboxCharOrLong(arg2, code2)); throw new NoSuchMethodException(); } /** arg1 | arg2 */ public static Object takeOr(Object arg1, Object arg2) throws NoSuchMethodException { if ((arg1 instanceof Boolean) || (arg2 instanceof Boolean)) { if ((arg1 instanceof Boolean) && (arg2 instanceof Boolean)) return boxToBoolean(((java.lang.Boolean) arg1).booleanValue() | ((java.lang.Boolean) arg2).booleanValue()); else throw new NoSuchMethodException(); } int code1 = typeCode(arg1); int code2 = typeCode(arg2); int maxcode = (code1 < code2) ? code2 : code1; if (maxcode <= INT) return boxToInteger(unboxCharOrInt(arg1, code1) | unboxCharOrInt(arg2, code2)); if (maxcode <= LONG) return boxToLong(unboxCharOrLong(arg1, code1) | unboxCharOrLong(arg2, code2)); throw new NoSuchMethodException(); } /** arg1 ^ arg2 */ public static Object takeXor(Object arg1, Object arg2) throws NoSuchMethodException { if ((arg1 instanceof Boolean) || (arg2 instanceof Boolean)) { if ((arg1 instanceof Boolean) && (arg2 instanceof Boolean)) return boxToBoolean(((java.lang.Boolean) arg1).booleanValue() ^ ((java.lang.Boolean) arg2).booleanValue()); else throw new NoSuchMethodException(); } int code1 = typeCode(arg1); int code2 = typeCode(arg2); int maxcode = (code1 < code2) ? code2 : code1; if (maxcode <= INT) return boxToInteger(unboxCharOrInt(arg1, code1) ^ unboxCharOrInt(arg2, code2)); if (maxcode <= LONG) return boxToLong(unboxCharOrLong(arg1, code1) ^ unboxCharOrLong(arg2, code2)); throw new NoSuchMethodException(); } /** arg1 && arg2 */ public static Object takeConditionalAnd(Object arg1, Object arg2) throws NoSuchMethodException { if ((arg1 instanceof Boolean) && (arg2 instanceof Boolean)) { return boxToBoolean(((java.lang.Boolean) arg1).booleanValue() && ((java.lang.Boolean) arg2).booleanValue()); } throw new NoSuchMethodException(); } /** arg1 || arg2 */ public static Object takeConditionalOr(Object arg1, Object arg2) throws NoSuchMethodException { if ((arg1 instanceof Boolean) && (arg2 instanceof Boolean)) { return boxToBoolean(((java.lang.Boolean) arg1).booleanValue() || ((java.lang.Boolean) arg2).booleanValue()); } throw new NoSuchMethodException(); } /** ~arg */ public static Object complement(Object arg) throws NoSuchMethodException { int code = typeCode(arg); if (code <= INT) { return boxToInteger(~unboxCharOrInt(arg, code)); } if (code <= LONG) { return boxToLong(~unboxCharOrLong(arg, code)); } throw new NoSuchMethodException(); } /** !arg */ public static Object takeNot(Object arg) throws NoSuchMethodException { if (arg instanceof Boolean) { return boxToBoolean(!((java.lang.Boolean) arg).booleanValue()); } throw new NoSuchMethodException(); } public static Object testEqual(Object arg1, Object arg2) throws NoSuchMethodException { return boxToBoolean(arg1 == arg2); } public static Object testNotEqual(Object arg1, Object arg2) throws NoSuchMethodException { return boxToBoolean(arg1 != arg2); } public static Object testLessThan(Object arg1, Object arg2) throws NoSuchMethodException { int code1 = typeCode(arg1); int code2 = typeCode(arg2); int maxcode = (code1 < code2) ? code2 : code1; if (maxcode <= INT) { int val1 = unboxCharOrInt(arg1, code1); int val2 = unboxCharOrInt(arg2, code2); return boxToBoolean(val1 < val2); } if (maxcode <= LONG) { long val1 = unboxCharOrLong(arg1, code1); long val2 = unboxCharOrLong(arg2, code2); return boxToBoolean(val1 < val2); } if (maxcode <= FLOAT) { float val1 = unboxCharOrFloat(arg1, code1); float val2 = unboxCharOrFloat(arg2, code2); return boxToBoolean(val1 < val2); } if (maxcode <= DOUBLE) { double val1 = unboxCharOrDouble(arg1, code1); double val2 = unboxCharOrDouble(arg2, code2); return boxToBoolean(val1 < val2); } throw new NoSuchMethodException(); } public static Object testLessOrEqualThan(Object arg1, Object arg2) throws NoSuchMethodException { int code1 = typeCode(arg1); int code2 = typeCode(arg2); int maxcode = (code1 < code2) ? code2 : code1; if (maxcode <= INT) { int val1 = unboxCharOrInt(arg1, code1); int val2 = unboxCharOrInt(arg2, code2); return boxToBoolean(val1 <= val2); } if (maxcode <= LONG) { long val1 = unboxCharOrLong(arg1, code1); long val2 = unboxCharOrLong(arg2, code2); return boxToBoolean(val1 <= val2); } if (maxcode <= FLOAT) { float val1 = unboxCharOrFloat(arg1, code1); float val2 = unboxCharOrFloat(arg2, code2); return boxToBoolean(val1 <= val2); } if (maxcode <= DOUBLE) { double val1 = unboxCharOrDouble(arg1, code1); double val2 = unboxCharOrDouble(arg2, code2); return boxToBoolean(val1 <= val2); } throw new NoSuchMethodException(); } public static Object testGreaterOrEqualThan(Object arg1, Object arg2) throws NoSuchMethodException { int code1 = typeCode(arg1); int code2 = typeCode(arg2); int maxcode = (code1 < code2) ? code2 : code1; if (maxcode <= INT) { int val1 = unboxCharOrInt(arg1, code1); int val2 = unboxCharOrInt(arg2, code2); return boxToBoolean(val1 >= val2); } if (maxcode <= LONG) { long val1 = unboxCharOrLong(arg1, code1); long val2 = unboxCharOrLong(arg2, code2); return boxToBoolean(val1 >= val2); } if (maxcode <= FLOAT) { float val1 = unboxCharOrFloat(arg1, code1); float val2 = unboxCharOrFloat(arg2, code2); return boxToBoolean(val1 >= val2); } if (maxcode <= DOUBLE) { double val1 = unboxCharOrDouble(arg1, code1); double val2 = unboxCharOrDouble(arg2, code2); return boxToBoolean(val1 >= val2); } throw new NoSuchMethodException(); } public static Object testGreaterThan(Object arg1, Object arg2) throws NoSuchMethodException { int code1 = typeCode(arg1); int code2 = typeCode(arg2); int maxcode = (code1 < code2) ? code2 : code1; if (maxcode <= INT) { int val1 = unboxCharOrInt(arg1, code1); int val2 = unboxCharOrInt(arg2, code2); return boxToBoolean(val1 > val2); } if (maxcode <= LONG) { long val1 = unboxCharOrLong(arg1, code1); long val2 = unboxCharOrLong(arg2, code2); return boxToBoolean(val1 > val2); } if (maxcode <= FLOAT) { float val1 = unboxCharOrFloat(arg1, code1); float val2 = unboxCharOrFloat(arg2, code2); return boxToBoolean(val1 > val2); } if (maxcode <= DOUBLE) { double val1 = unboxCharOrDouble(arg1, code1); double val2 = unboxCharOrDouble(arg2, code2); return boxToBoolean(val1 > val2); } throw new NoSuchMethodException(); } public static boolean isBoxedNumberOrBoolean(Object arg) { return (arg instanceof java.lang.Boolean) || isBoxedNumber(arg); } public static boolean isBoxedNumber(Object arg) { return ( (arg instanceof java.lang.Integer) || (arg instanceof java.lang.Long) || (arg instanceof java.lang.Double) || (arg instanceof java.lang.Float) || (arg instanceof java.lang.Short) || (arg instanceof java.lang.Character) || (arg instanceof java.lang.Byte) ); } /** arg.toChar */ public static java.lang.Character toCharacter(Object arg) throws NoSuchMethodException { if (arg instanceof java.lang.Integer) return boxToCharacter((char)unboxToInt(arg)); if (arg instanceof java.lang.Short) return boxToCharacter((char)unboxToShort(arg)); if (arg instanceof java.lang.Character) return (java.lang.Character)arg; if (arg instanceof java.lang.Long) return boxToCharacter((char)unboxToLong(arg)); if (arg instanceof java.lang.Byte) return boxToCharacter((char)unboxToByte(arg)); if (arg instanceof java.lang.Float) return boxToCharacter((char)unboxToFloat(arg)); if (arg instanceof java.lang.Double) return boxToCharacter((char)unboxToDouble(arg)); throw new NoSuchMethodException(); } /** arg.toByte */ public static java.lang.Byte toByte(Object arg) throws NoSuchMethodException { if (arg instanceof java.lang.Integer) return boxToByte((byte)unboxToInt(arg)); if (arg instanceof java.lang.Character) return boxToByte((byte)unboxToChar(arg)); if (arg instanceof java.lang.Byte) return (java.lang.Byte)arg; if (arg instanceof java.lang.Long) return boxToByte((byte)unboxToLong(arg)); if (arg instanceof java.lang.Short) return boxToByte((byte)unboxToShort(arg)); if (arg instanceof java.lang.Float) return boxToByte((byte)unboxToFloat(arg)); if (arg instanceof java.lang.Double) return boxToByte((byte)unboxToDouble(arg)); throw new NoSuchMethodException(); } /** arg.toShort */ public static java.lang.Short toShort(Object arg) throws NoSuchMethodException { if (arg instanceof java.lang.Integer) return boxToShort((short)unboxToInt(arg)); if (arg instanceof java.lang.Long) return boxToShort((short)unboxToLong(arg)); if (arg instanceof java.lang.Character) return boxToShort((short)unboxToChar(arg)); if (arg instanceof java.lang.Byte) return boxToShort((short)unboxToByte(arg)); if (arg instanceof java.lang.Short) return (java.lang.Short)arg; if (arg instanceof java.lang.Float) return boxToShort((short)unboxToFloat(arg)); if (arg instanceof java.lang.Double) return boxToShort((short)unboxToDouble(arg)); throw new NoSuchMethodException(); } /** arg.toInt */ public static java.lang.Integer toInteger(Object arg) throws NoSuchMethodException { if (arg instanceof java.lang.Integer) return (java.lang.Integer)arg; if (arg instanceof java.lang.Long) return boxToInteger((int)unboxToLong(arg)); if (arg instanceof java.lang.Double) return boxToInteger((int)unboxToDouble(arg)); if (arg instanceof java.lang.Float) return boxToInteger((int)unboxToFloat(arg)); if (arg instanceof java.lang.Character) return boxToInteger((int)unboxToChar(arg)); if (arg instanceof java.lang.Byte) return boxToInteger((int)unboxToByte(arg)); if (arg instanceof java.lang.Short) return boxToInteger((int)unboxToShort(arg)); throw new NoSuchMethodException(); } /** arg.toLong */ public static java.lang.Long toLong(Object arg) throws NoSuchMethodException { if (arg instanceof java.lang.Integer) return boxToLong((long)unboxToInt(arg)); if (arg instanceof java.lang.Double) return boxToLong((long)unboxToDouble(arg)); if (arg instanceof java.lang.Float) return boxToLong((long)unboxToFloat(arg)); if (arg instanceof java.lang.Long) return (java.lang.Long)arg; if (arg instanceof java.lang.Character) return boxToLong((long)unboxToChar(arg)); if (arg instanceof java.lang.Byte) return boxToLong((long)unboxToByte(arg)); if (arg instanceof java.lang.Short) return boxToLong((long)unboxToShort(arg)); throw new NoSuchMethodException(); } /** arg.toFloat */ public static java.lang.Float toFloat(Object arg) throws NoSuchMethodException { if (arg instanceof java.lang.Integer) return boxToFloat((float)unboxToInt(arg)); if (arg instanceof java.lang.Long) return boxToFloat((float)unboxToLong(arg)); if (arg instanceof java.lang.Float) return (java.lang.Float)arg; if (arg instanceof java.lang.Double) return boxToFloat((float)unboxToDouble(arg)); if (arg instanceof java.lang.Character) return boxToFloat((float)unboxToChar(arg)); if (arg instanceof java.lang.Byte) return boxToFloat((float)unboxToByte(arg)); if (arg instanceof java.lang.Short) return boxToFloat((float)unboxToShort(arg)); throw new NoSuchMethodException(); } /** arg.toDouble */ public static java.lang.Double toDouble(Object arg) throws NoSuchMethodException { if (arg instanceof java.lang.Integer) return boxToDouble((double)unboxToInt(arg)); if (arg instanceof java.lang.Float) return boxToDouble((double)unboxToFloat(arg)); if (arg instanceof java.lang.Double) return (java.lang.Double)arg; if (arg instanceof java.lang.Long) return boxToDouble((double)unboxToLong(arg)); if (arg instanceof java.lang.Character) return boxToDouble((double)unboxToChar(arg)); if (arg instanceof java.lang.Byte) return boxToDouble((double)unboxToByte(arg)); if (arg instanceof java.lang.Short) return boxToDouble((double)unboxToShort(arg)); throw new NoSuchMethodException(); } } Other Scala source code examplesHere is a short list of links related to this Scala BoxesRunTime.java source code file: |
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