1 /* 2 * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package jdk.nashorn.internal.runtime.arrays; 27 28 import jdk.nashorn.internal.codegen.types.Type; 29 import jdk.nashorn.internal.runtime.ScriptRuntime; 30 import jdk.nashorn.internal.runtime.Undefined; 31 import jdk.nashorn.internal.runtime.linker.Bootstrap; 32 33 /** 34 * Base class for array filters. Implements all core routines so that the 35 * filter only has to implement those needed. 36 */ 37 abstract class ArrayFilter extends ArrayData { 38 /** Underlying array. */ 39 protected ArrayData underlying; 40 41 ArrayFilter(final ArrayData underlying) { 42 super(underlying.length()); 43 this.underlying = underlying; 44 } 45 46 /** 47 * Get the underlying {@link ArrayData} that this filter wraps 48 * @return array data 49 */ 50 protected ArrayData getUnderlying() { 51 return underlying; 52 } 53 54 @Override 55 public void setLength(final long length) { 56 super.setLength(length); 57 underlying.setLength(length); 58 } 59 60 @Override 61 public Object[] asObjectArray() { 62 return underlying.asObjectArray(); 63 } 64 65 @Override 66 public Object asArrayOfType(final Class<?> componentType) { 67 return underlying.asArrayOfType(componentType); 68 } 69 70 @Override 71 public void shiftLeft(final int by) { 72 underlying.shiftLeft(by); 73 setLength(underlying.length()); 74 } 75 76 @Override 77 public ArrayData shiftRight(final int by) { 78 underlying = underlying.shiftRight(by); 79 setLength(underlying.length()); 80 return this; 81 } 82 83 @Override 84 public ArrayData ensure(final long safeIndex) { 85 underlying = underlying.ensure(safeIndex); 86 setLength(underlying.length()); 87 return this; 88 } 89 90 @Override 91 public ArrayData shrink(final long newLength) { 92 underlying = underlying.shrink(newLength); 93 setLength(underlying.length()); 94 return this; 95 } 96 97 @Override 98 public ArrayData set(final int index, final Object value, final boolean strict) { 99 underlying = underlying.set(index, value, strict); 100 setLength(underlying.length()); 101 return this; 102 } 103 104 @Override 105 public ArrayData set(final int index, final int value, final boolean strict) { 106 underlying = underlying.set(index, value, strict); 107 setLength(underlying.length()); 108 return this; 109 } 110 111 @Override 112 public ArrayData set(final int index, final long value, final boolean strict) { 113 underlying = underlying.set(index, value, strict); 114 setLength(underlying.length()); 115 return this; 116 } 117 118 @Override 119 public ArrayData set(final int index, final double value, final boolean strict) { 120 underlying = underlying.set(index, value, strict); 121 setLength(underlying.length()); 122 return this; 123 } 124 125 @Override 126 public ArrayData setEmpty(final int index) { 127 underlying.setEmpty(index); 128 return this; 129 } 130 131 @Override 132 public ArrayData setEmpty(final long lo, final long hi) { 133 underlying.setEmpty(lo, hi); 134 return this; 135 } 136 137 @Override 138 public Type getOptimisticType() { 139 return underlying.getOptimisticType(); 140 } 141 142 @Override 143 public int getInt(final int index) { 144 return underlying.getInt(index); 145 } 146 147 @Override 148 public int getIntOptimistic(final int index, final int programPoint) { 149 return underlying.getIntOptimistic(index, programPoint); 150 } 151 152 @Override 153 public long getLong(final int index) { 154 return underlying.getLong(index); 155 } 156 157 @Override 158 public long getLongOptimistic(final int index, final int programPoint) { 159 return underlying.getLongOptimistic(index, programPoint); 160 } 161 162 @Override 163 public double getDouble(final int index) { 164 return underlying.getDouble(index); 165 } 166 167 @Override 168 public double getDoubleOptimistic(final int index, final int programPoint) { 169 return underlying.getDoubleOptimistic(index, programPoint); 170 } 171 172 @Override 173 public Object getObject(final int index) { 174 return underlying.getObject(index); 175 } 176 177 @Override 178 public boolean has(final int index) { 179 return underlying.has(index); 180 } 181 182 @Override 183 public ArrayData delete(final int index) { 184 underlying = underlying.delete(index); 185 setLength(underlying.length()); 186 return this; 187 } 188 189 @Override 190 public ArrayData delete(final long from, final long to) { 191 underlying = underlying.delete(from, to); 192 setLength(underlying.length()); 193 return this; 194 } 195 196 @Override 197 public ArrayData convert(final Class<?> type) { 198 underlying = underlying.convert(type); 199 setLength(underlying.length()); 200 return this; 201 } 202 203 @Override 204 public Object pop() { 205 final Object value = underlying.pop(); 206 setLength(underlying.length()); 207 return value; 208 } 209 210 @Override 211 public long nextIndex(final long index) { 212 return underlying.nextIndex(index); 213 } 214 215 static Object convertUndefinedValue(final Class<?> targetType) { 216 return invoke(Bootstrap.getLinkerServices().getTypeConverter(Undefined.class, targetType), 217 ScriptRuntime.UNDEFINED); 218 } 219 }