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/*
* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package jdk.nashorn.internal.runtime.arrays;
import jdk.nashorn.internal.codegen.types.Type;
import jdk.nashorn.internal.runtime.ScriptRuntime;
import jdk.nashorn.internal.runtime.Undefined;
import jdk.nashorn.internal.runtime.linker.Bootstrap;
/**
* Base class for array filters. Implements all core routines so that the
* filter only has to implement those needed.
*/
abstract class ArrayFilter extends ArrayData {
/** Underlying array. */
protected ArrayData underlying;
ArrayFilter(final ArrayData underlying) {
super(underlying.length());
this.underlying = underlying;
}
/**
* Get the underlying {@link ArrayData} that this filter wraps
* @return array data
*/
protected ArrayData getUnderlying() {
return underlying;
}
@Override
public void setLength(final long length) {
super.setLength(length);
underlying.setLength(length);
}
@Override
public Object[] asObjectArray() {
return underlying.asObjectArray();
}
@Override
public Object asArrayOfType(final Class<?> componentType) {
return underlying.asArrayOfType(componentType);
}
@Override
public void shiftLeft(final int by) {
underlying.shiftLeft(by);
setLength(underlying.length());
}
@Override
public ArrayData shiftRight(final int by) {
underlying = underlying.shiftRight(by);
setLength(underlying.length());
return this;
}
@Override
public ArrayData ensure(final long safeIndex) {
underlying = underlying.ensure(safeIndex);
setLength(underlying.length());
return this;
}
@Override
public ArrayData shrink(final long newLength) {
underlying = underlying.shrink(newLength);
setLength(underlying.length());
return this;
}
@Override
public ArrayData set(final int index, final Object value, final boolean strict) {
underlying = underlying.set(index, value, strict);
setLength(underlying.length());
return this;
}
@Override
public ArrayData set(final int index, final int value, final boolean strict) {
underlying = underlying.set(index, value, strict);
setLength(underlying.length());
return this;
}
@Override
public ArrayData set(final int index, final double value, final boolean strict) {
underlying = underlying.set(index, value, strict);
setLength(underlying.length());
return this;
}
@Override
public ArrayData setEmpty(final int index) {
underlying.setEmpty(index);
return this;
}
@Override
public ArrayData setEmpty(final long lo, final long hi) {
underlying.setEmpty(lo, hi);
return this;
}
@Override
public Type getOptimisticType() {
return underlying.getOptimisticType();
}
@Override
public int getInt(final int index) {
return underlying.getInt(index);
}
@Override
public int getIntOptimistic(final int index, final int programPoint) {
return underlying.getIntOptimistic(index, programPoint);
}
@Override
public double getDouble(final int index) {
return underlying.getDouble(index);
}
@Override
public double getDoubleOptimistic(final int index, final int programPoint) {
return underlying.getDoubleOptimistic(index, programPoint);
}
@Override
public Object getObject(final int index) {
return underlying.getObject(index);
}
@Override
public boolean has(final int index) {
return underlying.has(index);
}
@Override
public ArrayData delete(final int index) {
underlying = underlying.delete(index);
setLength(underlying.length());
return this;
}
@Override
public ArrayData delete(final long from, final long to) {
underlying = underlying.delete(from, to);
setLength(underlying.length());
return this;
}
@Override
public ArrayData convert(final Class<?> type) {
underlying = underlying.convert(type);
setLength(underlying.length());
return this;
}
@Override
public Object pop() {
final Object value = underlying.pop();
setLength(underlying.length());
return value;
}
@Override
public long nextIndex(final long index) {
return underlying.nextIndex(index);
}
static Object convertUndefinedValue(final Class<?> targetType) {
return invoke(Bootstrap.getLinkerServices().getTypeConverter(Undefined.class, targetType),
ScriptRuntime.UNDEFINED);
}
}
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