Wed, 03 Jul 2013 13:03:36 +0200
8019585: Sometimes a var declaration using itself in its init wasn't declared as canBeUndefined, causing erroneous bytecode
Reviewed-by: sundar, attila
jlaskey@3 | 1 | /* |
jlaskey@7 | 2 | * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
jlaskey@3 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
jlaskey@3 | 4 | * |
jlaskey@3 | 5 | * This code is free software; you can redistribute it and/or modify it |
jlaskey@3 | 6 | * under the terms of the GNU General Public License version 2 only, as |
jlaskey@3 | 7 | * published by the Free Software Foundation. Oracle designates this |
jlaskey@3 | 8 | * particular file as subject to the "Classpath" exception as provided |
jlaskey@3 | 9 | * by Oracle in the LICENSE file that accompanied this code. |
jlaskey@3 | 10 | * |
jlaskey@3 | 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
jlaskey@3 | 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
jlaskey@3 | 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
jlaskey@3 | 14 | * version 2 for more details (a copy is included in the LICENSE file that |
jlaskey@3 | 15 | * accompanied this code). |
jlaskey@3 | 16 | * |
jlaskey@3 | 17 | * You should have received a copy of the GNU General Public License version |
jlaskey@3 | 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
jlaskey@3 | 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
jlaskey@3 | 20 | * |
jlaskey@3 | 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
jlaskey@3 | 22 | * or visit www.oracle.com if you need additional information or have any |
jlaskey@3 | 23 | * questions. |
jlaskey@3 | 24 | */ |
jlaskey@3 | 25 | |
jlaskey@3 | 26 | package jdk.nashorn.internal.objects; |
jlaskey@3 | 27 | |
jlaskey@3 | 28 | import jdk.nashorn.internal.objects.annotations.Attribute; |
jlaskey@3 | 29 | import jdk.nashorn.internal.objects.annotations.Constructor; |
jlaskey@3 | 30 | import jdk.nashorn.internal.objects.annotations.Function; |
sundar@284 | 31 | import jdk.nashorn.internal.objects.annotations.Property; |
jlaskey@3 | 32 | import jdk.nashorn.internal.objects.annotations.ScriptClass; |
sundar@284 | 33 | import jdk.nashorn.internal.objects.annotations.Where; |
jlaskey@3 | 34 | import jdk.nashorn.internal.runtime.JSType; |
hannesw@380 | 35 | import jdk.nashorn.internal.runtime.PropertyMap; |
jlaskey@3 | 36 | import jdk.nashorn.internal.runtime.ScriptObject; |
jlaskey@3 | 37 | import jdk.nashorn.internal.runtime.arrays.ArrayData; |
jlaskey@3 | 38 | |
jlaskey@3 | 39 | /** |
jlaskey@3 | 40 | * Float64 array for the TypedArray extension |
jlaskey@3 | 41 | */ |
jlaskey@3 | 42 | @ScriptClass("Float64Array") |
sundar@82 | 43 | public final class NativeFloat64Array extends ArrayBufferView { |
sundar@292 | 44 | /** |
sundar@292 | 45 | * The size in bytes of each element in the array. |
sundar@292 | 46 | */ |
sundar@284 | 47 | @Property(attributes = Attribute.NOT_ENUMERABLE | Attribute.NOT_WRITABLE | Attribute.NOT_CONFIGURABLE, where = Where.CONSTRUCTOR) |
sundar@284 | 48 | public static final int BYTES_PER_ELEMENT = 8; |
sundar@284 | 49 | |
hannesw@380 | 50 | // initialized by nasgen |
lagergren@405 | 51 | @SuppressWarnings("unused") |
hannesw@380 | 52 | private static PropertyMap $nasgenmap$; |
hannesw@380 | 53 | |
jlaskey@3 | 54 | private static final Factory FACTORY = new Factory(BYTES_PER_ELEMENT) { |
jlaskey@3 | 55 | @Override |
jlaskey@3 | 56 | public ArrayBufferView construct(final NativeArrayBuffer buffer, final int byteOffset, final int length) { |
jlaskey@3 | 57 | return new NativeFloat64Array(buffer, byteOffset, length); |
jlaskey@3 | 58 | } |
jlaskey@3 | 59 | @Override |
jlaskey@3 | 60 | public ArrayData createArrayData(final NativeArrayBuffer buffer, final int byteOffset, final int length) { |
jlaskey@3 | 61 | return new Float64ArrayData(buffer, byteOffset, length); |
jlaskey@3 | 62 | } |
jlaskey@3 | 63 | }; |
jlaskey@3 | 64 | |
jlaskey@3 | 65 | private static final class Float64ArrayData extends ArrayDataImpl { |
jlaskey@3 | 66 | private Float64ArrayData(final NativeArrayBuffer buffer, |
jlaskey@3 | 67 | final int byteOffset, final int elementLength) { |
jlaskey@3 | 68 | super(buffer, byteOffset, elementLength); |
jlaskey@3 | 69 | } |
jlaskey@3 | 70 | |
jlaskey@3 | 71 | @Override |
jlaskey@3 | 72 | protected int byteIndex(final int index) { |
jlaskey@3 | 73 | return index * BYTES_PER_ELEMENT + byteOffset; |
jlaskey@3 | 74 | } |
jlaskey@3 | 75 | |
jlaskey@3 | 76 | @Override |
jlaskey@3 | 77 | protected double getDoubleImpl(final int index) { |
jlaskey@3 | 78 | final int byteIndex = byteIndex(index); |
jlaskey@3 | 79 | final byte[] byteArray = buffer.getByteArray(); |
jlaskey@3 | 80 | final long bits; |
jlaskey@3 | 81 | bits = byteArray[byteIndex ] & 0x0000_0000_0000_00ffL | |
jlaskey@3 | 82 | (long)byteArray[byteIndex+1] << 8 & 0x0000_0000_0000_ff00L | |
jlaskey@3 | 83 | (long)byteArray[byteIndex+2] << 16 & 0x0000_0000_00ff_0000L | |
jlaskey@3 | 84 | (long)byteArray[byteIndex+3] << 24 & 0x0000_0000_ff00_0000L | |
jlaskey@3 | 85 | (long)byteArray[byteIndex+4] << 32 & 0x0000_00ff_0000_0000L | |
jlaskey@3 | 86 | (long)byteArray[byteIndex+5] << 40 & 0x0000_ff00_0000_0000L | |
jlaskey@3 | 87 | (long)byteArray[byteIndex+6] << 48 & 0x00ff_0000_0000_0000L | |
jlaskey@3 | 88 | (long)byteArray[byteIndex+7] << 56 & 0xff00_0000_0000_0000L ; |
jlaskey@3 | 89 | return Double.longBitsToDouble(bits); |
jlaskey@3 | 90 | } |
jlaskey@3 | 91 | |
jlaskey@3 | 92 | @Override |
jlaskey@3 | 93 | protected int getIntImpl(final int index) { |
jlaskey@3 | 94 | return (int)getDoubleImpl(index); |
jlaskey@3 | 95 | } |
jlaskey@3 | 96 | |
jlaskey@3 | 97 | @Override |
jlaskey@3 | 98 | protected long getLongImpl(final int key) { |
jlaskey@3 | 99 | return (long)getDoubleImpl(key); |
jlaskey@3 | 100 | } |
jlaskey@3 | 101 | |
jlaskey@3 | 102 | @Override |
jlaskey@3 | 103 | protected Object getObjectImpl(final int key) { |
jlaskey@3 | 104 | return getDoubleImpl(key); |
jlaskey@3 | 105 | } |
jlaskey@3 | 106 | |
jlaskey@3 | 107 | @Override |
jlaskey@3 | 108 | protected void setImpl(final int index, final double value) { |
jlaskey@3 | 109 | final long bits = Double.doubleToRawLongBits(value); |
jlaskey@3 | 110 | final int byteIndex = byteIndex(index); |
jlaskey@3 | 111 | @SuppressWarnings("MismatchedReadAndWriteOfArray") |
jlaskey@3 | 112 | final byte[] byteArray = buffer.getByteArray(); |
jlaskey@3 | 113 | byteArray[byteIndex ] = (byte)(bits & 0xff); |
jlaskey@3 | 114 | byteArray[byteIndex+1] = (byte)(bits >>> 8 & 0xff); |
jlaskey@3 | 115 | byteArray[byteIndex+2] = (byte)(bits >>> 16 & 0xff); |
jlaskey@3 | 116 | byteArray[byteIndex+3] = (byte)(bits >>> 24 & 0xff); |
jlaskey@3 | 117 | byteArray[byteIndex+4] = (byte)(bits >>> 32 & 0xff); |
jlaskey@3 | 118 | byteArray[byteIndex+5] = (byte)(bits >>> 40 & 0xff); |
jlaskey@3 | 119 | byteArray[byteIndex+6] = (byte)(bits >>> 48 & 0xff); |
jlaskey@3 | 120 | byteArray[byteIndex+7] = (byte)(bits >>> 56 & 0xff); |
jlaskey@3 | 121 | } |
jlaskey@3 | 122 | |
jlaskey@3 | 123 | @Override |
jlaskey@3 | 124 | protected void setImpl(final int key, final int value) { |
jlaskey@3 | 125 | setImpl(key, (double)value); |
jlaskey@3 | 126 | } |
jlaskey@3 | 127 | |
jlaskey@3 | 128 | @Override |
jlaskey@3 | 129 | protected void setImpl(final int key, final long value) { |
jlaskey@3 | 130 | setImpl(key, (double)value); |
jlaskey@3 | 131 | } |
jlaskey@3 | 132 | |
jlaskey@3 | 133 | @Override |
jlaskey@3 | 134 | protected void setImpl(final int key, final Object value) { |
jlaskey@3 | 135 | setImpl(key, JSType.toNumber(value)); |
jlaskey@3 | 136 | } |
jlaskey@3 | 137 | } |
jlaskey@3 | 138 | |
jlaskey@3 | 139 | /** |
jlaskey@3 | 140 | * Constructor |
jlaskey@3 | 141 | * |
jlaskey@3 | 142 | * @param newObj is this typed array instantiated with the new operator |
jlaskey@3 | 143 | * @param self self reference |
jlaskey@3 | 144 | * @param args args |
jlaskey@3 | 145 | * |
jlaskey@3 | 146 | * @return new typed array |
jlaskey@3 | 147 | */ |
jlaskey@3 | 148 | @Constructor(arity = 1) |
jlaskey@3 | 149 | public static Object constructor(final boolean newObj, final Object self, final Object... args) { |
jlaskey@3 | 150 | return constructorImpl(args, FACTORY); |
jlaskey@3 | 151 | } |
jlaskey@3 | 152 | |
jlaskey@3 | 153 | NativeFloat64Array(final NativeArrayBuffer buffer, final int byteOffset, final int length) { |
jlaskey@3 | 154 | super(buffer, byteOffset, length); |
jlaskey@3 | 155 | } |
jlaskey@3 | 156 | |
jlaskey@3 | 157 | @Override |
jlaskey@3 | 158 | protected Factory factory() { |
jlaskey@3 | 159 | return FACTORY; |
jlaskey@3 | 160 | } |
jlaskey@3 | 161 | |
jlaskey@3 | 162 | @Override |
jlaskey@3 | 163 | protected boolean isFloatArray() { |
jlaskey@3 | 164 | return true; |
jlaskey@3 | 165 | } |
jlaskey@3 | 166 | |
jlaskey@3 | 167 | /** |
jlaskey@3 | 168 | * Set values |
jlaskey@3 | 169 | * @param self self reference |
jlaskey@3 | 170 | * @param array multiple values of array's type to set |
jlaskey@3 | 171 | * @param offset optional start index, interpreted 0 if undefined |
jlaskey@3 | 172 | * @return undefined |
jlaskey@3 | 173 | */ |
jlaskey@3 | 174 | @Function(attributes = Attribute.NOT_ENUMERABLE) |
jlaskey@3 | 175 | protected static Object set(final Object self, final Object array, final Object offset) { |
jlaskey@3 | 176 | return ArrayBufferView.setImpl(self, array, offset); |
jlaskey@3 | 177 | } |
jlaskey@3 | 178 | |
jlaskey@3 | 179 | /** |
jlaskey@3 | 180 | * Returns a new TypedArray view of the ArrayBuffer store for this TypedArray, |
jlaskey@3 | 181 | * referencing the elements at begin, inclusive, up to end, exclusive. If either |
jlaskey@3 | 182 | * begin or end is negative, it refers to an index from the end of the array, |
jlaskey@3 | 183 | * as opposed to from the beginning. |
jlaskey@3 | 184 | * <p> |
jlaskey@3 | 185 | * If end is unspecified, the subarray contains all elements from begin to the end |
jlaskey@3 | 186 | * of the TypedArray. The range specified by the begin and end values is clamped to |
jlaskey@3 | 187 | * the valid index range for the current array. If the computed length of the new |
jlaskey@3 | 188 | * TypedArray would be negative, it is clamped to zero. |
jlaskey@3 | 189 | * <p> |
jlaskey@3 | 190 | * The returned TypedArray will be of the same type as the array on which this |
jlaskey@3 | 191 | * method is invoked. |
jlaskey@3 | 192 | * |
jlaskey@3 | 193 | * @param self self reference |
jlaskey@3 | 194 | * @param begin begin position |
jlaskey@3 | 195 | * @param end end position |
jlaskey@3 | 196 | * |
jlaskey@3 | 197 | * @return sub array |
jlaskey@3 | 198 | */ |
jlaskey@3 | 199 | @Function(attributes = Attribute.NOT_ENUMERABLE) |
jlaskey@3 | 200 | protected static Object subarray(final Object self, final Object begin, final Object end) { |
jlaskey@3 | 201 | return ArrayBufferView.subarrayImpl(self, begin, end); |
jlaskey@3 | 202 | } |
jlaskey@3 | 203 | |
jlaskey@3 | 204 | @Override |
jlaskey@3 | 205 | protected ScriptObject getPrototype() { |
jlaskey@3 | 206 | return Global.instance().getFloat64ArrayPrototype(); |
jlaskey@3 | 207 | } |
jlaskey@3 | 208 | } |