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/* __ *\
** ________ ___ / / ___ Scala API **
** / __/ __// _ | / / / _ | (c) 2003, LAMP/EPFL **
** __\ \/ /__/ __ |/ /__/ __ | **
** /____/\___/_/ |_/____/_/ | | **
** |/ **
\* */
// $Id$
package scala.runtime.types;
import scala.Type;
import scala.Array;
/**
* Type for Java arrays of references.
*
* @author Michel Schinz
* @version 1.0
*/
public class JavaRefArrayType extends Type {
public final int dimensions;
public final Type elemType;
public static JavaRefArrayType javaRefArrayType(Type elemType,
int dimensions) {
if (elemType instanceof JavaRefArrayType) {
JavaRefArrayType other = (JavaRefArrayType)elemType;
return new JavaRefArrayType(other.elemType,
dimensions + other.dimensions);
} else
return new JavaRefArrayType(elemType, dimensions);
}
private JavaRefArrayType(Type elemType, int dimensions) {
this.elemType = elemType;
this.dimensions = dimensions;
}
public Array newArray(int size) {
throw new Error(); // TODO
}
public Object defaultValue() {
return null;
}
public boolean isInstance(Object o) {
assert Statistics.incInstanceOf();
return this.isSameAsJavaType(o.getClass());
}
public boolean isSameType(Type that) {
return (that instanceof JavaRefArrayType)
&& (elemType.isSameType(((JavaRefArrayType)that).elemType));
}
public boolean isSameAsJavaType(Class that) {
Class thatElemType = that;
for (int i = 0; i < dimensions && thatElemType != null; ++i)
thatElemType = thatElemType.getComponentType();
return (thatElemType != null)
&& (elemType.isSameAsJavaType(thatElemType));
}
public boolean isSubType(Type that) {
return isSameType(that);
}
public String toString() {
return elemType.toString() + "[]";
}
public int hashCode() {
return elemType.hashCode() * 11;
}
}
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