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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2002-2005, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id$
package scala.runtime;
/** Arrays created by new Array[T](length) where T is a type variable
*/
[serializable]
final class BoxedAnyArray(val length: Int) extends BoxedArray {
private var boxed = new Array[Object](length);
private val hash = boxed.hashCode();
private var unboxed: Object = null;
private var elemTag: String = null;
def apply(index: Int): Object = synchronized {
if (unboxed == null)
boxed(index);
else if (elemTag == ScalaRunTime.IntTag)
BoxedInt.box(unboxed.asInstanceOf[Array[Int]](index))
else if (elemTag == ScalaRunTime.DoubleTag)
BoxedDouble.box(unboxed.asInstanceOf[Array[Double]](index))
else if (elemTag == ScalaRunTime.FloatTag)
BoxedFloat.box(unboxed.asInstanceOf[Array[Float]](index))
else if (elemTag == ScalaRunTime.LongTag)
BoxedLong.box(unboxed.asInstanceOf[Array[Long]](index))
else if (elemTag == ScalaRunTime.CharTag)
BoxedChar.box(unboxed.asInstanceOf[Array[Char]](index))
else if (elemTag == ScalaRunTime.ByteTag)
BoxedByte.box(unboxed.asInstanceOf[Array[Byte]](index))
else if (elemTag == ScalaRunTime.ShortTag)
BoxedShort.box(unboxed.asInstanceOf[Array[Short]](index))
else if (elemTag == ScalaRunTime.BooleanTag)
BoxedBoolean.box(unboxed.asInstanceOf[Array[Boolean]](index))
else
unboxed.asInstanceOf[Array[Object]](index)
}
def update(index: Int, elem: Object): Unit = synchronized {
if (unboxed == null)
boxed(index) = elem;
else if (elemTag == ScalaRunTime.IntTag)
unboxed.asInstanceOf[Array[Int]](index) = elem.asInstanceOf[BoxedNumber].intValue()
else if (elemTag == ScalaRunTime.DoubleTag)
unboxed.asInstanceOf[Array[Double]](index) = elem.asInstanceOf[BoxedNumber].doubleValue()
else if (elemTag == ScalaRunTime.FloatTag)
unboxed.asInstanceOf[Array[Float]](index) = elem.asInstanceOf[BoxedNumber].floatValue()
else if (elemTag == ScalaRunTime.LongTag)
unboxed.asInstanceOf[Array[Long]](index) = elem.asInstanceOf[BoxedNumber].longValue()
else if (elemTag == ScalaRunTime.CharTag)
unboxed.asInstanceOf[Array[Char]](index) = elem.asInstanceOf[BoxedNumber].charValue()
else if (elemTag == ScalaRunTime.ByteTag)
unboxed.asInstanceOf[Array[Byte]](index) = elem.asInstanceOf[BoxedNumber].byteValue()
else if (elemTag == ScalaRunTime.ShortTag)
unboxed.asInstanceOf[Array[Short]](index) = elem.asInstanceOf[BoxedNumber].shortValue()
else if (elemTag == ScalaRunTime.BooleanTag)
unboxed.asInstanceOf[Array[Boolean]](index) = elem.asInstanceOf[BoxedBoolean].value
else
unboxed.asInstanceOf[Array[Object]](index) = elem
}
def unbox(elemTag: String): Object = synchronized {
if (unboxed == null) {
this.elemTag = elemTag;
if (elemTag == ScalaRunTime.IntTag) {
val newvalue = new Array[Int](length);
var i = 0;
while (i < length) {
newvalue(i) = boxed(i).asInstanceOf[BoxedNumber].intValue();
i = i + 1
}
unboxed = newvalue;
} else if (elemTag == ScalaRunTime.DoubleTag) {
val newvalue = new Array[Double](length);
var i = 0;
while (i < length) {
newvalue(i) = boxed(i).asInstanceOf[BoxedNumber].doubleValue();
i = i + 1
}
unboxed = newvalue;
} else if (elemTag == ScalaRunTime.FloatTag) {
val newvalue = new Array[Float](length);
var i = 0;
while (i < length) {
newvalue(i) = boxed(i).asInstanceOf[BoxedNumber].floatValue();
i = i + 1
}
unboxed = newvalue;
} else if (elemTag == ScalaRunTime.LongTag) {
val newvalue = new Array[Long](length);
var i = 0;
while (i < length) {
newvalue(i) = boxed(i).asInstanceOf[BoxedNumber].longValue();
i = i + 1
}
unboxed = newvalue;
} else if (elemTag == ScalaRunTime.CharTag) {
val newvalue = new Array[Char](length);
var i = 0;
while (i < length) {
newvalue(i) = boxed(i).asInstanceOf[BoxedNumber].charValue();
i = i + 1
}
unboxed = newvalue;
} else if (elemTag == ScalaRunTime.ByteTag) {
val newvalue = new Array[Byte](length);
var i = 0;
while (i < length) {
newvalue(i) = boxed(i).asInstanceOf[BoxedNumber].byteValue();
i = i + 1
}
unboxed = newvalue;
} else if (elemTag == ScalaRunTime.ShortTag) {
val newvalue = new Array[Short](length);
var i = 0;
while (i < length) {
newvalue(i) = boxed(i).asInstanceOf[BoxedNumber].shortValue();
i = i + 1
}
unboxed = newvalue;
} else if (elemTag == ScalaRunTime.BooleanTag) {
val newvalue = new Array[Boolean](length);
var i = 0;
while (i < length) {
newvalue(i) = boxed(i).asInstanceOf[BoxedBoolean].value;
i = i + 1
}
unboxed = newvalue;
} else if (elemTag == boxed.getClass().getComponentType()) {
unboxed = boxed;
} else {
unboxed = java.lang.reflect.Array.newInstance(Class.forName(elemTag), length);
System.arraycopy(boxed, 0, unboxed, 0, length);
}
boxed = null
}
unboxed
}
override def equals(other: Any): Boolean = (
other.isInstanceOf[BoxedAnyArray] && (this eq (other.asInstanceOf[BoxedAnyArray])) ||
(if (unboxed == null) boxed == other else unboxed == other)
);
override def hashCode(): Int = hash;
}
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