diff options
Diffstat (limited to 'src/jdk/nashorn/internal/runtime/arrays/NoTypeArrayData.java')
| -rw-r--r-- | src/jdk/nashorn/internal/runtime/arrays/NoTypeArrayData.java | 186 |
1 files changed, 0 insertions, 186 deletions
diff --git a/src/jdk/nashorn/internal/runtime/arrays/NoTypeArrayData.java b/src/jdk/nashorn/internal/runtime/arrays/NoTypeArrayData.java deleted file mode 100644 index 1f2298c0..00000000 --- a/src/jdk/nashorn/internal/runtime/arrays/NoTypeArrayData.java +++ /dev/null @@ -1,186 +0,0 @@ -/* - * 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 java.lang.reflect.Array; -import jdk.nashorn.internal.runtime.ScriptRuntime; - -/** - * Place holding array data for non-array objects. Activates a true array when - * accessed. Should only exist as a singleton defined in ArrayData. - */ -final class NoTypeArrayData extends ArrayData { - NoTypeArrayData() { - super(0); - } - - NoTypeArrayData(final long length) { - super(length); - } - - @Override - public Object[] asObjectArray() { - return new Object[0]; - } - - @Override - public ArrayData copy() { - return new NoTypeArrayData(); - } - - @Override - public Object asArrayOfType(final Class<?> componentType) { - return Array.newInstance(componentType, 0); - } - - @Override - public ArrayData convert(final Class<?> type) { - final long length = length(); - final ArrayData arrayData; - if (type == Long.class) { - arrayData = new LongArrayData(new long[ArrayData.nextSize((int)length)], (int)length); - } else if (type == Double.class) { - arrayData = new NumberArrayData(new double[ArrayData.nextSize((int)length)], (int)length); - } else if (type == Integer.class) { - arrayData = new IntArrayData(new int[ArrayData.nextSize((int)length)], (int)length); - } else { - assert !type.isPrimitive(); - arrayData = new ObjectArrayData(new Object[ArrayData.nextSize((int)length)], (int)length); - } - return length == 0 ? arrayData : new DeletedRangeArrayFilter(arrayData, 0, length - 1); - } - - @Override - public void shiftLeft(final int by) { - //empty - } - - @Override - public ArrayData shiftRight(final int by) { - return this; - } - - @Override - public ArrayData ensure(final long safeIndex) { - if (safeIndex >= SparseArrayData.MAX_DENSE_LENGTH) { - return new SparseArrayData(this, safeIndex + 1); - } - - // Don't trample the shared EMPTY_ARRAY. - if (length() == 0) { - return new NoTypeArrayData(Math.max(safeIndex + 1, length())); - } - - setLength(Math.max(safeIndex + 1, length())); - return this; - } - - @Override - public ArrayData shrink(final long newLength) { - return this; - } - - @Override - public ArrayData set(final int index, final Object value, final boolean strict) { - ArrayData newData; - - if (value instanceof Double) { - newData = convert(Double.class); - } else if (value instanceof Long) { - newData = convert(Long.class); - } else if (value instanceof Integer) { - newData = convert(Integer.class); - } else { - assert !(value instanceof Number); - newData = convert(value == null ? Object.class : value.getClass()); - } - - return newData.set(index, value, strict); - } - - @Override - public ArrayData set(final int index, final int value, final boolean strict) { - final ArrayData newData = convert(Integer.class); - return newData.set(index, value, strict); - } - - @Override - public ArrayData set(final int index, final long value, final boolean strict) { - final ArrayData newData = convert(Long.class); - return newData.set(index, value, strict); - } - - @Override - public ArrayData set(final int index, final double value, final boolean strict) { - final ArrayData newData = convert(Double.class); - return newData.set(index, value, strict); - } - - @Override - public int getInt(final int index) { - throw new ArrayIndexOutOfBoundsException(index); - } - - @Override - public long getLong(final int index) { - throw new ArrayIndexOutOfBoundsException(index); - } - - @Override - public double getDouble(final int index) { - throw new ArrayIndexOutOfBoundsException(index); - } - - @Override - public Object getObject(final int index) { - throw new ArrayIndexOutOfBoundsException(index); - } - - @Override - public boolean has(final int index) { - return false; - } - - @Override - public ArrayData delete(final int index) { - return new DeletedRangeArrayFilter(this, index, index); - } - - @Override - public ArrayData delete(final long fromIndex, final long toIndex) { - return new DeletedRangeArrayFilter(this, fromIndex, toIndex); - } - - @Override - public Object pop() { - return ScriptRuntime.UNDEFINED; - } - - @Override - public ArrayData slice(final long from, final long to) { - return this; - } -} |