author | sundar |
Mon, 11 Feb 2013 21:26:06 +0530 | |
changeset 16226 | 0e4f37e6cc40 |
parent 16188 | d6390b0ea32a |
child 16256 | f2d9a0c49914 |
permissions | -rw-r--r-- |
16147 | 1 |
/* |
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* Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package jdk.nashorn.internal.objects; |
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import static jdk.nashorn.internal.runtime.ECMAErrors.rangeError; |
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import static jdk.nashorn.internal.runtime.ECMAErrors.typeError; |
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import static jdk.nashorn.internal.runtime.PropertyDescriptor.VALUE; |
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import static jdk.nashorn.internal.runtime.PropertyDescriptor.WRITABLE; |
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import static jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator.arrayLikeIterator; |
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import static jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator.reverseArrayLikeIterator; |
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import java.lang.invoke.MethodHandle; |
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import java.util.ArrayList; |
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import java.util.Arrays; |
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import java.util.Collections; |
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import java.util.Comparator; |
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import java.util.Iterator; |
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import java.util.List; |
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import jdk.nashorn.internal.objects.annotations.Attribute; |
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import jdk.nashorn.internal.objects.annotations.Constructor; |
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import jdk.nashorn.internal.objects.annotations.Function; |
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import jdk.nashorn.internal.objects.annotations.Getter; |
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import jdk.nashorn.internal.objects.annotations.ScriptClass; |
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import jdk.nashorn.internal.objects.annotations.Setter; |
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import jdk.nashorn.internal.objects.annotations.SpecializedConstructor; |
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import jdk.nashorn.internal.objects.annotations.Where; |
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import jdk.nashorn.internal.runtime.JSType; |
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import jdk.nashorn.internal.runtime.PropertyDescriptor; |
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import jdk.nashorn.internal.runtime.ScriptFunction; |
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import jdk.nashorn.internal.runtime.ScriptObject; |
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import jdk.nashorn.internal.runtime.ScriptRuntime; |
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import jdk.nashorn.internal.runtime.Undefined; |
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import jdk.nashorn.internal.runtime.arrays.ArrayData; |
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import jdk.nashorn.internal.runtime.arrays.ArrayIndex; |
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import jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator; |
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import jdk.nashorn.internal.runtime.arrays.IteratorAction; |
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import jdk.nashorn.internal.runtime.linker.Bootstrap; |
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import jdk.nashorn.internal.runtime.linker.InvokeByName; |
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/** |
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* Runtime representation of a JavaScript array. NativeArray only holds numeric |
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* keyed values. All other values are stored in spill. |
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*/ |
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@ScriptClass("Array") |
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public final class NativeArray extends ScriptObject { |
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private static final InvokeByName JOIN = new InvokeByName("join", ScriptObject.class); |
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private static final MethodHandle EVERY_CALLBACK_INVOKER = createIteratorCallbackInvoker(boolean.class); |
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private static final MethodHandle SOME_CALLBACK_INVOKER = createIteratorCallbackInvoker(boolean.class); |
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private static final MethodHandle FOREACH_CALLBACK_INVOKER = createIteratorCallbackInvoker(void.class); |
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private static final MethodHandle MAP_CALLBACK_INVOKER = createIteratorCallbackInvoker(Object.class); |
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private static final MethodHandle FILTER_CALLBACK_INVOKER = createIteratorCallbackInvoker(boolean.class); |
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private static final MethodHandle REDUCE_CALLBACK_INVOKER = Bootstrap.createDynamicInvoker("dyn:call", Object.class, |
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Object.class, Undefined.class, Object.class, Object.class, int.class, Object.class); |
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private static final MethodHandle CALL_CMP = Bootstrap.createDynamicInvoker("dyn:call", int.class, |
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ScriptFunction.class, Object.class, Object.class, Object.class); |
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private static final InvokeByName TO_LOCALE_STRING = new InvokeByName("toLocaleString", ScriptObject.class, String.class); |
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/* |
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* Constructors. |
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*/ |
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NativeArray() { |
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this(ArrayData.initialArray()); |
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} |
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NativeArray(final long length) { |
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// TODO assert valid index in long before casting |
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this(ArrayData.allocate((int) length)); |
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} |
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NativeArray(final int[] array) { |
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this(ArrayData.allocate(array)); |
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} |
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NativeArray(final long[] array) { |
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this(ArrayData.allocate(array)); |
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} |
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NativeArray(final double[] array) { |
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this(ArrayData.allocate(array)); |
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} |
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NativeArray(final Object[] array) { |
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this(ArrayData.allocate(array.length)); |
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ArrayData arrayData = this.getArray(); |
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arrayData.ensure(array.length - 1); |
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for (int index = 0; index < array.length; index++) { |
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final Object value = array[index]; |
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if (value == ScriptRuntime.EMPTY) { |
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arrayData = arrayData.delete(index); |
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} else { |
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16226
0e4f37e6cc40
8007915: Nashorn IR, codegen, parser packages and Context instance should be inaccessible to user code
sundar
parents:
16188
diff
changeset
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arrayData = arrayData.set(index, value, isStrictContext()); |
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} |
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} |
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this.setArray(arrayData); |
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} |
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private NativeArray(final ArrayData arrayData) { |
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setProto(Global.instance().getArrayPrototype()); |
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this.setArray(arrayData); |
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this.setIsArray(); |
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} |
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@Override |
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public String getClassName() { |
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return "Array"; |
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} |
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@Override |
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public Object getLength() { |
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return getArray().length() & JSType.MAX_UINT; |
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} |
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/** |
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* ECMA 15.4.5.1 [[DefineOwnProperty]] ( P, Desc, Throw ) |
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*/ |
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@Override |
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public boolean defineOwnProperty(final String key, final Object propertyDesc, final boolean reject) { |
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final PropertyDescriptor desc = toPropertyDescriptor(Global.instance(), propertyDesc); |
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// never be undefined as "length" is always defined and can't be deleted for arrays |
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// Step 1 |
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final PropertyDescriptor oldLenDesc = (PropertyDescriptor) super.getOwnPropertyDescriptor("length"); |
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// Step 2 |
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// get old length and convert to long |
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long oldLen = NativeArray.validLength(oldLenDesc.getValue(), true); |
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// Step 3 |
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if ("length".equals(key)) { |
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// Step 3a |
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if (!desc.has(VALUE)) { |
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return super.defineOwnProperty("length", propertyDesc, reject); |
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} |
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// Step 3b |
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final PropertyDescriptor newLenDesc = desc; |
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// Step 3c and 3d - get new length and convert to long |
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final long newLen = NativeArray.validLength(newLenDesc.getValue(), true); |
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// Step 3e |
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newLenDesc.setValue(newLen); |
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// Step 3f |
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// increasing array length - just need to set new length value (and attributes if any) and return |
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if (newLen >= oldLen) { |
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return super.defineOwnProperty("length", newLenDesc, reject); |
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} |
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// Step 3g |
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if (!oldLenDesc.isWritable()) { |
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if (reject) { |
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typeError("property.not.writable", "length", ScriptRuntime.safeToString(this)); |
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} |
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return false; |
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} |
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// Step 3h and 3i |
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final boolean newWritable = (!newLenDesc.has(WRITABLE) || newLenDesc.isWritable()); |
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if (!newWritable) { |
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newLenDesc.setWritable(true); |
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} |
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// Step 3j and 3k |
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final boolean succeeded = super.defineOwnProperty("length", newLenDesc, reject); |
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if (!succeeded) { |
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return false; |
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} |
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// Step 3l |
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// make sure that length is set till the point we can delete the old elements |
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while (newLen < oldLen) { |
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oldLen--; |
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final boolean deleteSucceeded = delete(oldLen, false); |
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if (!deleteSucceeded) { |
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newLenDesc.setValue(oldLen + 1); |
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if (!newWritable) { |
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newLenDesc.setWritable(false); |
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} |
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super.defineOwnProperty("length", newLenDesc, false); |
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if (reject) { |
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typeError("property.not.writable", "length", ScriptRuntime.safeToString(this)); |
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} |
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return false; |
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} |
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} |
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// Step 3m |
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if (!newWritable) { |
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// make 'length' property not writable |
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final ScriptObject newDesc = Global.newEmptyInstance(); |
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newDesc.set(WRITABLE, false, false); |
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return super.defineOwnProperty("length", newDesc, false); |
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} |
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return true; |
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} |
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// Step 4a |
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final int index = ArrayIndex.getArrayIndexNoThrow(key); |
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if (ArrayIndex.isValidArrayIndex(index)) { |
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final long longIndex = ArrayIndex.toLongIndex(index); |
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// Step 4b |
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// setting an element beyond current length, but 'length' is not writable |
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if (longIndex >= oldLen && !oldLenDesc.isWritable()) { |
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if (reject) { |
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16188 | 238 |
typeError("property.not.writable", Long.toString(longIndex), ScriptRuntime.safeToString(this)); |
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} |
240 |
return false; |
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} |
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// Step 4c |
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// set the new array element |
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final boolean succeeded = super.defineOwnProperty(key, propertyDesc, false); |
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// Step 4d |
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if (!succeeded) { |
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if (reject) { |
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typeError("cant.redefine.property", key, ScriptRuntime.safeToString(this)); |
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} |
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return false; |
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} |
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// Step 4e -- adjust new length based on new element index that is set |
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if (longIndex >= oldLen) { |
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oldLenDesc.setValue(longIndex + 1); |
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super.defineOwnProperty("length", oldLenDesc, false); |
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} |
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// Step 4f |
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return true; |
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} |
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264 |
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265 |
// not an index property |
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return super.defineOwnProperty(key, propertyDesc, reject); |
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} |
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/** |
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* Return the array contents upcasted as an ObjectArray, regardless of |
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* representation |
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* |
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* @return an object array |
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*/ |
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public Object[] asObjectArray() { |
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return getArray().asObjectArray(); |
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} |
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||
279 |
/** |
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280 |
* ECMA 15.4.3.2 Array.isArray ( arg ) |
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* |
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* @param self self reference |
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* @param arg argument - object to check |
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* @return true if argument is an array |
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*/ |
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286 |
@Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
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287 |
public static Object isArray(final Object self, final Object arg) { |
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288 |
return isArray(arg) || (arg == Global.instance().getArrayPrototype()) |
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289 |
|| (arg instanceof NativeRegExpExecResult); |
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290 |
} |
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291 |
||
292 |
/** |
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293 |
* Length getter |
|
294 |
* @param self self reference |
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295 |
* @return the length of the object |
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296 |
*/ |
|
297 |
@Getter(attributes = Attribute.NOT_ENUMERABLE | Attribute.NOT_CONFIGURABLE) |
|
298 |
public static Object length(final Object self) { |
|
299 |
if (isArray(self)) { |
|
300 |
return ((NativeArray) self).getArray().length() & JSType.MAX_UINT; |
|
301 |
} |
|
302 |
||
303 |
return 0; |
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304 |
} |
|
305 |
||
306 |
/** |
|
307 |
* Length setter |
|
308 |
* @param self self reference |
|
309 |
* @param length new length property |
|
310 |
*/ |
|
311 |
@Setter(attributes = Attribute.NOT_ENUMERABLE | Attribute.NOT_CONFIGURABLE) |
|
312 |
public static void length(final Object self, final Object length) { |
|
313 |
if (isArray(self)) { |
|
314 |
((NativeArray) self).setLength(validLength(length, true)); |
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315 |
} |
|
316 |
} |
|
317 |
||
318 |
static long validLength(final Object length, final boolean reject) { |
|
319 |
final double doubleLength = JSType.toNumber(length); |
|
320 |
if (!Double.isNaN(doubleLength) && JSType.isRepresentableAsLong(doubleLength)) { |
|
321 |
final long len = (long) doubleLength; |
|
322 |
if (len >= 0 && len <= JSType.MAX_UINT) { |
|
323 |
return len; |
|
324 |
} |
|
325 |
} |
|
326 |
if (reject) { |
|
16188 | 327 |
rangeError("inappropriate.array.length", ScriptRuntime.safeToString(length)); |
16147 | 328 |
} |
329 |
return -1; |
|
330 |
} |
|
331 |
||
332 |
/** |
|
333 |
* ECMA 15.4.4.2 Array.prototype.toString ( ) |
|
334 |
* |
|
335 |
* @param self self reference |
|
336 |
* @return string representation of array |
|
337 |
*/ |
|
338 |
@Function(attributes = Attribute.NOT_ENUMERABLE) |
|
339 |
public static Object toString(final Object self) { |
|
340 |
if (self instanceof ScriptObject) { |
|
341 |
final ScriptObject sobj = (ScriptObject) self; |
|
342 |
try { |
|
343 |
final Object join = JOIN.getGetter().invokeExact(sobj); |
|
344 |
if (join instanceof ScriptFunction) { |
|
345 |
return JOIN.getInvoker().invokeExact(join, sobj); |
|
346 |
} |
|
347 |
} catch (final RuntimeException | Error e) { |
|
348 |
throw e; |
|
349 |
} catch (final Throwable t) { |
|
350 |
throw new RuntimeException(t); |
|
351 |
} |
|
352 |
} |
|
353 |
||
354 |
// FIXME: should lookup Object.prototype.toString and call that? |
|
355 |
return ScriptRuntime.builtinObjectToString(self); |
|
356 |
} |
|
357 |
||
358 |
/** |
|
359 |
* ECMA 15.4.4.3 Array.prototype.toLocaleString ( ) |
|
360 |
* |
|
361 |
* @param self self reference |
|
362 |
* @return locale specific string representation for array |
|
363 |
*/ |
|
364 |
@Function(attributes = Attribute.NOT_ENUMERABLE) |
|
365 |
public static Object toLocaleString(final Object self) { |
|
366 |
final StringBuilder sb = new StringBuilder(); |
|
367 |
final Iterator<Object> iter = arrayLikeIterator(self, true); |
|
368 |
||
369 |
while (iter.hasNext()) { |
|
370 |
final Object obj = iter.next(); |
|
371 |
||
372 |
if (obj != null && obj != ScriptRuntime.UNDEFINED) { |
|
16188 | 373 |
final Object val = JSType.toScriptObject(obj); |
16147 | 374 |
|
375 |
try { |
|
376 |
if (val instanceof ScriptObject) { |
|
377 |
final ScriptObject sobj = (ScriptObject)val; |
|
378 |
final Object toLocaleString = TO_LOCALE_STRING.getGetter().invokeExact(sobj); |
|
379 |
||
380 |
if (toLocaleString instanceof ScriptFunction) { |
|
381 |
sb.append((String)TO_LOCALE_STRING.getInvoker().invokeExact(toLocaleString, sobj)); |
|
382 |
} else { |
|
16188 | 383 |
typeError("not.a.function", "toLocaleString"); |
16147 | 384 |
} |
385 |
} |
|
386 |
} catch (final Error|RuntimeException t) { |
|
387 |
throw t; |
|
388 |
} catch (final Throwable t) { |
|
389 |
throw new RuntimeException(t); |
|
390 |
} |
|
391 |
} |
|
392 |
||
393 |
if (iter.hasNext()) { |
|
394 |
sb.append(","); |
|
395 |
} |
|
396 |
} |
|
397 |
||
398 |
return sb.toString(); |
|
399 |
} |
|
400 |
||
401 |
/** |
|
402 |
* ECMA 15.4.2.2 new Array (len) |
|
403 |
* |
|
404 |
* @param newObj was the new operator used to instantiate this array |
|
405 |
* @param self self reference |
|
406 |
* @param args arguments (length) |
|
407 |
* @return the new NativeArray |
|
408 |
*/ |
|
409 |
@Constructor(arity = 1) |
|
410 |
public static Object construct(final boolean newObj, final Object self, final Object... args) { |
|
411 |
switch (args.length) { |
|
412 |
case 0: |
|
413 |
return new NativeArray(0); |
|
414 |
case 1: |
|
415 |
final Object len = args[0]; |
|
416 |
if (len instanceof Number) { |
|
417 |
long length; |
|
418 |
if (len instanceof Integer || len instanceof Long) { |
|
419 |
length = ((Number) len).longValue(); |
|
420 |
if (length >= 0 && length < 0xffff_ffffL) { |
|
421 |
return new NativeArray(length); |
|
422 |
} |
|
423 |
} |
|
424 |
||
425 |
length = JSType.toUint32(len); |
|
426 |
||
427 |
/* |
|
428 |
* If the argument len is a Number and ToUint32(len) is equal to |
|
429 |
* len, then the length property of the newly constructed object |
|
430 |
* is set to ToUint32(len). If the argument len is a Number and |
|
431 |
* ToUint32(len) is not equal to len, a RangeError exception is |
|
432 |
* thrown. |
|
433 |
*/ |
|
434 |
final double numberLength = ((Number) len).doubleValue(); |
|
435 |
if (length != numberLength) { |
|
16188 | 436 |
rangeError("inappropriate.array.length", JSType.toString(numberLength)); |
16147 | 437 |
} |
438 |
||
439 |
return new NativeArray(length); |
|
440 |
} |
|
441 |
/* |
|
442 |
* If the argument len is not a Number, then the length property of |
|
443 |
* the newly constructed object is set to 1 and the 0 property of |
|
444 |
* the newly constructed object is set to len |
|
445 |
*/ |
|
446 |
return new NativeArray(new Object[]{args[0]}); |
|
447 |
//fallthru |
|
448 |
default: |
|
449 |
return new NativeArray(args); |
|
450 |
} |
|
451 |
} |
|
452 |
||
453 |
/** |
|
454 |
* ECMA 15.4.2.2 new Array (len) |
|
455 |
* |
|
456 |
* Specialized constructor for zero arguments - empty array |
|
457 |
* |
|
458 |
* @param newObj was the new operator used to instantiate this array |
|
459 |
* @param self self reference |
|
460 |
* @return the new NativeArray |
|
461 |
*/ |
|
462 |
@SpecializedConstructor |
|
463 |
public static Object construct(final boolean newObj, final Object self) { |
|
464 |
return new NativeArray(0); |
|
465 |
} |
|
466 |
||
467 |
/** |
|
468 |
* ECMA 15.4.2.2 new Array (len) |
|
469 |
* |
|
470 |
* Specialized constructor for one integer argument (length) |
|
471 |
* |
|
472 |
* @param newObj was the new operator used to instantiate this array |
|
473 |
* @param self self reference |
|
474 |
* @param length array length |
|
475 |
* @return the new NativeArray |
|
476 |
*/ |
|
477 |
@SpecializedConstructor |
|
478 |
public static Object construct(final boolean newObj, final Object self, final int length) { |
|
479 |
if (length >= 0) { |
|
480 |
return new NativeArray(length); |
|
481 |
} |
|
482 |
||
483 |
return construct(newObj, self, new Object[]{length}); |
|
484 |
} |
|
485 |
||
486 |
/** |
|
487 |
* ECMA 15.4.2.2 new Array (len) |
|
488 |
* |
|
489 |
* Specialized constructor for one long argument (length) |
|
490 |
* |
|
491 |
* @param newObj was the new operator used to instantiate this array |
|
492 |
* @param self self reference |
|
493 |
* @param length array length |
|
494 |
* @return the new NativeArray |
|
495 |
*/ |
|
496 |
@SpecializedConstructor |
|
497 |
public static Object construct(final boolean newObj, final Object self, final long length) { |
|
498 |
if (length >= 0L && length <= JSType.MAX_UINT) { |
|
499 |
return new NativeArray(length); |
|
500 |
} |
|
501 |
||
502 |
return construct(newObj, self, new Object[]{length}); |
|
503 |
} |
|
504 |
||
505 |
/** |
|
506 |
* ECMA 15.4.2.2 new Array (len) |
|
507 |
* |
|
508 |
* Specialized constructor for one double argument (length) |
|
509 |
* |
|
510 |
* @param newObj was the new operator used to instantiate this array |
|
511 |
* @param self self reference |
|
512 |
* @param length array length |
|
513 |
* @return the new NativeArray |
|
514 |
*/ |
|
515 |
@SpecializedConstructor |
|
516 |
public static Object construct(final boolean newObj, final Object self, final double length) { |
|
517 |
final long uint32length = JSType.toUint32(length); |
|
518 |
||
519 |
if (uint32length == length) { |
|
520 |
return new NativeArray(uint32length); |
|
521 |
} |
|
522 |
||
523 |
return construct(newObj, self, new Object[]{length}); |
|
524 |
} |
|
525 |
||
526 |
/** |
|
527 |
* ECMA 15.4.4.4 Array.prototype.concat ( [ item1 [ , item2 [ , ... ] ] ] ) |
|
528 |
* |
|
529 |
* @param self self reference |
|
530 |
* @param args arguments to concat |
|
531 |
* @return resulting NativeArray |
|
532 |
*/ |
|
533 |
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) |
|
534 |
public static Object concat(final Object self, final Object... args) { |
|
535 |
final ArrayList<Object> list = new ArrayList<>(); |
|
536 |
final Object selfToObject = Global.toObject(self); |
|
537 |
||
538 |
if (isArray(selfToObject)) { |
|
539 |
final Iterator<Object> iter = arrayLikeIterator(selfToObject, true); |
|
540 |
while (iter.hasNext()) { |
|
541 |
list.add(iter.next()); |
|
542 |
} |
|
543 |
} else { |
|
544 |
// single element, add it |
|
545 |
list.add(selfToObject); |
|
546 |
} |
|
547 |
||
548 |
for (final Object obj : args) { |
|
549 |
if (isArray(obj) || obj instanceof Iterable || (obj != null && obj.getClass().isArray())) { |
|
550 |
final Iterator<Object> iter = arrayLikeIterator(obj, true); |
|
551 |
if (iter.hasNext()) { |
|
552 |
while (iter.hasNext()) { |
|
553 |
list.add(iter.next()); |
|
554 |
} |
|
555 |
} else if (!isArray(obj)) { |
|
556 |
list.add(obj); // add empty object, but not an empty array |
|
557 |
} |
|
558 |
} else { |
|
559 |
// single element, add it |
|
560 |
list.add(obj); |
|
561 |
} |
|
562 |
} |
|
563 |
||
564 |
return new NativeArray(list.toArray()); |
|
565 |
} |
|
566 |
||
567 |
/** |
|
568 |
* ECMA 15.4.4.5 Array.prototype.join (separator) |
|
569 |
* |
|
570 |
* @param self self reference |
|
571 |
* @param separator element separator |
|
572 |
* @return string representation after join |
|
573 |
*/ |
|
574 |
@Function(attributes = Attribute.NOT_ENUMERABLE) |
|
575 |
public static Object join(final Object self, final Object separator) { |
|
576 |
final String sep = separator == ScriptRuntime.UNDEFINED ? "," : JSType.toString(separator); |
|
577 |
final StringBuilder sb = new StringBuilder(); |
|
578 |
final Iterator<Object> iter = arrayLikeIterator(self, true); |
|
579 |
||
580 |
while (iter.hasNext()) { |
|
581 |
final Object obj = iter.next(); |
|
582 |
||
583 |
if (obj != null && obj != ScriptRuntime.UNDEFINED) { |
|
584 |
sb.append(JSType.toString(obj)); |
|
585 |
} |
|
586 |
||
587 |
if (iter.hasNext()) { |
|
588 |
sb.append(sep); |
|
589 |
} |
|
590 |
} |
|
591 |
||
592 |
return sb.toString(); |
|
593 |
} |
|
594 |
||
595 |
/** |
|
596 |
* ECMA 15.4.4.6 Array.prototype.pop () |
|
597 |
* |
|
598 |
* @param self self reference |
|
599 |
* @return array after pop |
|
600 |
*/ |
|
601 |
@Function(attributes = Attribute.NOT_ENUMERABLE) |
|
602 |
public static Object pop(final Object self) { |
|
603 |
try { |
|
604 |
final ScriptObject sobj = (ScriptObject)self; |
|
16185 | 605 |
final boolean strict = sobj.isStrictContext(); |
16147 | 606 |
|
607 |
if (bulkable(sobj)) { |
|
608 |
return ((NativeArray)sobj).getArray().pop(); |
|
609 |
} |
|
610 |
||
611 |
final long len = JSType.toUint32(sobj.getLength()); |
|
612 |
||
613 |
if (len == 0) { |
|
614 |
sobj.set("length", 0, strict); |
|
615 |
return ScriptRuntime.UNDEFINED; |
|
616 |
} |
|
617 |
||
618 |
final long index = len - 1; |
|
619 |
final Object element = sobj.get(index); |
|
620 |
||
621 |
sobj.delete(index, strict); |
|
622 |
sobj.set("length", index, strict); |
|
623 |
||
624 |
return element; |
|
625 |
} catch (final ClassCastException | NullPointerException e) { |
|
16188 | 626 |
typeError("not.an.object", ScriptRuntime.safeToString(self)); |
16147 | 627 |
return ScriptRuntime.UNDEFINED; |
628 |
} |
|
629 |
} |
|
630 |
||
631 |
/** |
|
632 |
* ECMA 15.4.4.7 Array.prototype.push (args...) |
|
633 |
* |
|
634 |
* @param self self reference |
|
635 |
* @param args arguments to push |
|
636 |
* @return array after pushes |
|
637 |
*/ |
|
638 |
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) |
|
639 |
public static Object push(final Object self, final Object... args) { |
|
640 |
try { |
|
641 |
final ScriptObject sobj = (ScriptObject)self; |
|
16185 | 642 |
final boolean strict = sobj.isStrictContext(); |
16147 | 643 |
|
644 |
if (bulkable(sobj)) { |
|
645 |
final NativeArray nativeArray = (NativeArray)sobj; |
|
646 |
if (nativeArray.getArray().length() + args.length <= JSType.MAX_UINT) { |
|
16226
0e4f37e6cc40
8007915: Nashorn IR, codegen, parser packages and Context instance should be inaccessible to user code
sundar
parents:
16188
diff
changeset
|
647 |
final ArrayData newData = nativeArray.getArray().push(nativeArray.isStrictContext(), args); |
16147 | 648 |
nativeArray.setArray(newData); |
649 |
return newData.length(); |
|
650 |
} |
|
651 |
//fallthru |
|
652 |
} |
|
653 |
||
654 |
long len = JSType.toUint32(sobj.getLength()); |
|
655 |
for (final Object element : args) { |
|
656 |
sobj.set(len++, element, strict); |
|
657 |
} |
|
658 |
sobj.set("length", len, strict); |
|
659 |
||
660 |
return len; |
|
661 |
} catch (final ClassCastException | NullPointerException e) { |
|
16188 | 662 |
typeError("not.an.object", ScriptRuntime.safeToString(self)); |
16147 | 663 |
return ScriptRuntime.UNDEFINED; |
664 |
} |
|
665 |
} |
|
666 |
||
667 |
/** |
|
668 |
* ECMA 15.4.4.8 Array.prototype.reverse () |
|
669 |
* |
|
670 |
* @param self self reference |
|
671 |
* @return reversed array |
|
672 |
*/ |
|
673 |
@Function(attributes = Attribute.NOT_ENUMERABLE) |
|
674 |
public static Object reverse(final Object self) { |
|
675 |
try { |
|
676 |
final ScriptObject sobj = (ScriptObject)self; |
|
16185 | 677 |
final boolean strict = sobj.isStrictContext(); |
16147 | 678 |
final long len = JSType.toUint32(sobj.getLength()); |
679 |
final long middle = len / 2; |
|
680 |
||
681 |
for (long lower = 0; lower != middle; lower++) { |
|
682 |
final long upper = len - lower - 1; |
|
683 |
final Object lowerValue = sobj.get(lower); |
|
684 |
final Object upperValue = sobj.get(upper); |
|
685 |
final boolean lowerExists = sobj.has(lower); |
|
686 |
final boolean upperExists = sobj.has(upper); |
|
687 |
||
688 |
if (lowerExists && upperExists) { |
|
689 |
sobj.set(lower, upperValue, strict); |
|
690 |
sobj.set(upper, lowerValue, strict); |
|
691 |
} else if (!lowerExists && upperExists) { |
|
692 |
sobj.set(lower, upperValue, strict); |
|
693 |
sobj.delete(upper, strict); |
|
694 |
} else if (lowerExists && !upperExists) { |
|
695 |
sobj.delete(lower, strict); |
|
696 |
sobj.set(upper, lowerValue, strict); |
|
697 |
} |
|
698 |
} |
|
699 |
return sobj; |
|
700 |
} catch (final ClassCastException | NullPointerException e) { |
|
16188 | 701 |
typeError("not.an.object", ScriptRuntime.safeToString(self)); |
16147 | 702 |
return ScriptRuntime.UNDEFINED; |
703 |
} |
|
704 |
} |
|
705 |
||
706 |
/** |
|
707 |
* ECMA 15.4.4.9 Array.prototype.shift () |
|
708 |
* |
|
709 |
* @param self self reference |
|
710 |
* @return shifted array |
|
711 |
*/ |
|
712 |
@Function(attributes = Attribute.NOT_ENUMERABLE) |
|
713 |
public static Object shift(final Object self) { |
|
714 |
final Object obj = Global.toObject(self); |
|
715 |
||
716 |
Object first = ScriptRuntime.UNDEFINED; |
|
717 |
||
718 |
if (!(obj instanceof ScriptObject)) { |
|
719 |
return first; |
|
720 |
} |
|
721 |
||
722 |
final ScriptObject sobj = (ScriptObject) obj; |
|
723 |
final boolean strict = Global.isStrict(); |
|
724 |
||
725 |
long len = JSType.toUint32(sobj.getLength()); |
|
726 |
||
727 |
if (len > 0) { |
|
728 |
first = sobj.get(0); |
|
729 |
||
730 |
if (bulkable(sobj)) { |
|
731 |
((NativeArray) sobj).getArray().shiftLeft(1); |
|
732 |
} else { |
|
733 |
for (long k = 1; k < len; k++) { |
|
734 |
sobj.set(k - 1, sobj.get(k), strict); |
|
735 |
} |
|
736 |
} |
|
737 |
sobj.delete(--len, strict); |
|
738 |
} else { |
|
739 |
len = 0; |
|
740 |
} |
|
741 |
||
742 |
sobj.set("length", len, strict); |
|
743 |
||
744 |
return first; |
|
745 |
} |
|
746 |
||
747 |
/** |
|
748 |
* ECMA 15.4.4.10 Array.prototype.slice ( start [ , end ] ) |
|
749 |
* |
|
750 |
* @param self self reference |
|
751 |
* @param start start of slice (inclusive) |
|
752 |
* @param end end of slice (optional, exclusive) |
|
753 |
* @return sliced array |
|
754 |
*/ |
|
755 |
@Function(attributes = Attribute.NOT_ENUMERABLE) |
|
756 |
public static Object slice(final Object self, final Object start, final Object end) { |
|
757 |
final Object obj = Global.toObject(self); |
|
758 |
final ScriptObject sobj = (ScriptObject)obj; |
|
759 |
final long len = JSType.toUint32(sobj.getLength()); |
|
760 |
final long relativeStartUint32 = JSType.toUint32(start); |
|
761 |
final long relativeStart = JSType.toInteger(start); |
|
762 |
||
763 |
long k = relativeStart < 0 ? |
|
764 |
Math.max(len + relativeStart, 0) : |
|
765 |
Math.min( |
|
766 |
Math.max(relativeStartUint32, relativeStart), |
|
767 |
len); |
|
768 |
||
769 |
final long relativeEndUint32 = end == ScriptRuntime.UNDEFINED ? len : JSType.toUint32(end); |
|
770 |
final long relativeEnd = end == ScriptRuntime.UNDEFINED ? len : JSType.toInteger(end); |
|
771 |
||
772 |
final long finale = relativeEnd < 0 ? |
|
773 |
Math.max(len + relativeEnd, 0) : |
|
774 |
Math.min( |
|
775 |
Math.max(relativeEndUint32, relativeEnd), |
|
776 |
len); |
|
777 |
||
778 |
if (k >= finale) { |
|
779 |
return new NativeArray(0); |
|
780 |
} |
|
781 |
||
782 |
if (bulkable(sobj)) { |
|
783 |
final NativeArray narray = (NativeArray) sobj; |
|
784 |
return new NativeArray(narray.getArray().slice(k, finale)); |
|
785 |
} |
|
786 |
||
787 |
final NativeArray copy = new NativeArray(0); |
|
788 |
for (long n = 0; k < finale; n++, k++) { |
|
789 |
copy.defineOwnProperty((int) n, sobj.get(k)); |
|
790 |
} |
|
791 |
||
792 |
return copy; |
|
793 |
} |
|
794 |
||
795 |
private static ScriptFunction compareFunction(final Object comparefn) { |
|
796 |
try { |
|
797 |
return (ScriptFunction)comparefn; |
|
798 |
} catch (final ClassCastException e) { |
|
799 |
return null; //undefined or null |
|
800 |
} |
|
801 |
} |
|
802 |
||
803 |
private static Object[] sort(final Object[] array, final Object comparefn) { |
|
804 |
final ScriptFunction cmp = compareFunction(comparefn); |
|
805 |
||
806 |
final List<Object> list = Arrays.asList(array); |
|
16188 | 807 |
final Object cmpThis = cmp == null || cmp.isStrict() ? ScriptRuntime.UNDEFINED : Global.instance(); |
16147 | 808 |
|
809 |
Collections.sort(list, new Comparator<Object>() { |
|
810 |
@Override |
|
811 |
public int compare(final Object x, final Object y) { |
|
812 |
if (x == ScriptRuntime.UNDEFINED && y == ScriptRuntime.UNDEFINED) { |
|
813 |
return 0; |
|
814 |
} else if (x == ScriptRuntime.UNDEFINED) { |
|
815 |
return 1; |
|
816 |
} else if (y == ScriptRuntime.UNDEFINED) { |
|
817 |
return -1; |
|
818 |
} |
|
819 |
||
820 |
if (cmp != null) { |
|
821 |
try { |
|
822 |
return (int)CALL_CMP.invokeExact(cmp, cmpThis, x, y); |
|
823 |
} catch (final RuntimeException | Error e) { |
|
824 |
throw e; |
|
825 |
} catch (final Throwable t) { |
|
826 |
throw new RuntimeException(t); |
|
827 |
} |
|
828 |
} |
|
829 |
||
830 |
return JSType.toString(x).compareTo(JSType.toString(y)); |
|
831 |
} |
|
832 |
}); |
|
833 |
||
834 |
return list.toArray(new Object[array.length]); |
|
835 |
} |
|
836 |
||
837 |
/** |
|
838 |
* ECMA 15.4.4.11 Array.prototype.sort ( comparefn ) |
|
839 |
* |
|
840 |
* @param self self reference |
|
841 |
* @param comparefn element comparison function |
|
842 |
* @return sorted array |
|
843 |
*/ |
|
844 |
@Function(attributes = Attribute.NOT_ENUMERABLE) |
|
845 |
public static Object sort(final Object self, final Object comparefn) { |
|
846 |
try { |
|
847 |
final ScriptObject sobj = (ScriptObject) self; |
|
16185 | 848 |
final boolean strict = sobj.isStrictContext(); |
16147 | 849 |
final long len = JSType.toUint32(sobj.getLength()); |
850 |
||
851 |
if (len > 1) { |
|
852 |
final Object[] src = new Object[(int) len]; |
|
853 |
for (int i = 0; i < src.length; i++) { |
|
854 |
src[i] = sobj.get(i); |
|
855 |
} |
|
856 |
||
857 |
final Object[] sorted = sort(src, comparefn); |
|
858 |
assert sorted.length == src.length; |
|
859 |
||
860 |
for (int i = 0; i < sorted.length; i++) { |
|
861 |
sobj.set(i, sorted[i], strict); |
|
862 |
} |
|
863 |
} |
|
864 |
||
865 |
return sobj; |
|
866 |
} catch (final ClassCastException | NullPointerException e) { |
|
16188 | 867 |
typeError("not.an.object", ScriptRuntime.safeToString(self)); |
16147 | 868 |
return ScriptRuntime.UNDEFINED; |
869 |
} |
|
870 |
} |
|
871 |
||
872 |
/** |
|
873 |
* ECMA 15.4.4.12 Array.prototype.splice ( start, deleteCount [ item1 [ , item2 [ , ... ] ] ] ) |
|
874 |
* |
|
875 |
* @param self self reference |
|
876 |
* @param args arguments |
|
877 |
* @return result of splice |
|
878 |
*/ |
|
879 |
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2) |
|
880 |
public static Object splice(final Object self, final Object... args) { |
|
881 |
final Object obj = Global.toObject(self); |
|
882 |
||
883 |
if (!(obj instanceof ScriptObject)) { |
|
884 |
return ScriptRuntime.UNDEFINED; |
|
885 |
} |
|
886 |
||
887 |
final Object start = (args.length > 0) ? args[0] : ScriptRuntime.UNDEFINED; |
|
888 |
final Object deleteCount = (args.length > 1) ? args[1] : ScriptRuntime.UNDEFINED; |
|
889 |
||
890 |
Object[] items; |
|
891 |
||
892 |
if (args.length > 2) { |
|
893 |
items = new Object[args.length - 2]; |
|
894 |
System.arraycopy(args, 2, items, 0, items.length); |
|
895 |
} else { |
|
896 |
items = ScriptRuntime.EMPTY_ARRAY; |
|
897 |
} |
|
898 |
||
899 |
final ScriptObject sobj = (ScriptObject)obj; |
|
900 |
final boolean strict = Global.isStrict(); |
|
901 |
final long len = JSType.toUint32(sobj.getLength()); |
|
902 |
final long relativeStartUint32 = JSType.toUint32(start); |
|
903 |
final long relativeStart = JSType.toInteger(start); |
|
904 |
||
905 |
//TODO: workaround overflow of relativeStart for start > Integer.MAX_VALUE |
|
906 |
final long actualStart = relativeStart < 0 ? |
|
907 |
Math.max(len + relativeStart, 0) : |
|
908 |
Math.min( |
|
909 |
Math.max(relativeStartUint32, relativeStart), |
|
910 |
len); |
|
911 |
||
912 |
final long actualDeleteCount = |
|
913 |
Math.min( |
|
914 |
Math.max(JSType.toInteger(deleteCount), 0), |
|
915 |
len - actualStart); |
|
916 |
||
917 |
final NativeArray array = new NativeArray(actualDeleteCount); |
|
918 |
||
919 |
for (long k = 0; k < actualDeleteCount; k++) { |
|
920 |
final long from = actualStart + k; |
|
921 |
||
922 |
if (sobj.has(from)) { |
|
923 |
array.defineOwnProperty((int) k, sobj.get(from)); |
|
924 |
} |
|
925 |
} |
|
926 |
||
927 |
if (items.length < actualDeleteCount) { |
|
928 |
for (long k = actualStart; k < (len - actualDeleteCount); k++) { |
|
929 |
final long from = k + actualDeleteCount; |
|
930 |
final long to = k + items.length; |
|
931 |
||
932 |
if (sobj.has(from)) { |
|
933 |
sobj.set(to, sobj.get(from), strict); |
|
934 |
} else { |
|
935 |
sobj.delete(to, strict); |
|
936 |
} |
|
937 |
} |
|
938 |
||
939 |
for (long k = len; k > (len - actualDeleteCount + items.length); k--) { |
|
940 |
sobj.delete(k - 1, strict); |
|
941 |
} |
|
942 |
} else if (items.length > actualDeleteCount) { |
|
943 |
for (long k = len - actualDeleteCount; k > actualStart; k--) { |
|
944 |
final long from = k + actualDeleteCount - 1; |
|
945 |
final long to = k + items.length - 1; |
|
946 |
||
947 |
if (sobj.has(from)) { |
|
948 |
final Object fromValue = sobj.get(from); |
|
949 |
sobj.set(to, fromValue, strict); |
|
950 |
} else { |
|
951 |
sobj.delete(to, strict); |
|
952 |
} |
|
953 |
} |
|
954 |
} |
|
955 |
||
956 |
long k = actualStart; |
|
957 |
for (int i = 0; i < items.length; i++, k++) { |
|
958 |
sobj.set(k, items[i], strict); |
|
959 |
} |
|
960 |
||
961 |
final long newLength = len - actualDeleteCount + items.length; |
|
962 |
sobj.set("length", newLength, strict); |
|
963 |
||
964 |
return array; |
|
965 |
} |
|
966 |
||
967 |
/** |
|
968 |
* ECMA 15.4.4.13 Array.prototype.unshift ( [ item1 [ , item2 [ , ... ] ] ] ) |
|
969 |
* |
|
970 |
* @param self self reference |
|
971 |
* @param items items for unshift |
|
972 |
* @return unshifted array |
|
973 |
*/ |
|
974 |
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) |
|
975 |
public static Object unshift(final Object self, final Object... items) { |
|
976 |
final Object obj = Global.toObject(self); |
|
977 |
||
978 |
if (!(obj instanceof ScriptObject)) { |
|
979 |
return ScriptRuntime.UNDEFINED; |
|
980 |
} |
|
981 |
||
982 |
final ScriptObject sobj = (ScriptObject)obj; |
|
983 |
final boolean strict = Global.isStrict(); |
|
984 |
final long len = JSType.toUint32(sobj.getLength()); |
|
985 |
||
986 |
if (items == null) { |
|
987 |
return ScriptRuntime.UNDEFINED; |
|
988 |
} |
|
989 |
||
990 |
if (bulkable(sobj)) { |
|
991 |
final NativeArray nativeArray = (NativeArray) sobj; |
|
992 |
nativeArray.getArray().shiftRight(items.length); |
|
993 |
||
994 |
for (int j = 0; j < items.length; j++) { |
|
16185 | 995 |
nativeArray.setArray(nativeArray.getArray().set(j, items[j], sobj.isStrictContext())); |
16147 | 996 |
} |
997 |
} else { |
|
998 |
for (long k = len; k > 0; k--) { |
|
999 |
final long from = k - 1; |
|
1000 |
final long to = k + items.length - 1; |
|
1001 |
||
1002 |
if (sobj.has(from)) { |
|
1003 |
final Object fromValue = sobj.get(from); |
|
1004 |
sobj.set(to, fromValue, strict); |
|
1005 |
} else { |
|
1006 |
sobj.delete(to, strict); |
|
1007 |
} |
|
1008 |
} |
|
1009 |
||
1010 |
for (int j = 0; j < items.length; j++) { |
|
1011 |
sobj.set(j, items[j], strict); |
|
1012 |
} |
|
1013 |
} |
|
1014 |
||
1015 |
final long newLength = len + items.length; |
|
1016 |
sobj.set("length", newLength, strict); |
|
1017 |
||
1018 |
return newLength; |
|
1019 |
} |
|
1020 |
||
1021 |
/** |
|
1022 |
* ECMA 15.4.4.14 Array.prototype.indexOf ( searchElement [ , fromIndex ] ) |
|
1023 |
* |
|
1024 |
* @param self self reference |
|
1025 |
* @param searchElement element to search for |
|
1026 |
* @param fromIndex start index of search |
|
1027 |
* @return index of element, or -1 if not found |
|
1028 |
*/ |
|
1029 |
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) |
|
1030 |
public static Object indexOf(final Object self, final Object searchElement, final Object fromIndex) { |
|
1031 |
try { |
|
1032 |
final ScriptObject sobj = (ScriptObject)Global.toObject(self); |
|
1033 |
final long len = JSType.toUint32(sobj.getLength()); |
|
1034 |
final long n = JSType.toLong(fromIndex); |
|
1035 |
||
1036 |
if (len == 0 || n >= len) { |
|
1037 |
return -1; |
|
1038 |
} |
|
1039 |
||
1040 |
for (long k = Math.max(0, (n < 0) ? (len - Math.abs(n)) : n); k < len; k++) { |
|
1041 |
if (sobj.has(k)) { |
|
1042 |
if (ScriptRuntime.EQ_STRICT(sobj.get(k), searchElement)) { |
|
1043 |
return k; |
|
1044 |
} |
|
1045 |
} |
|
1046 |
} |
|
1047 |
} catch (final ClassCastException | NullPointerException e) { |
|
1048 |
//fallthru |
|
1049 |
} |
|
1050 |
||
1051 |
return -1; |
|
1052 |
} |
|
1053 |
||
1054 |
/** |
|
1055 |
* ECMA 15.4.4.15 Array.prototype.lastIndexOf ( searchElement [ , fromIndex ] ) |
|
1056 |
* |
|
1057 |
* @param self self reference |
|
1058 |
* @param args arguments: element to search for and optional from index |
|
1059 |
* @return index of element, or -1 if not found |
|
1060 |
*/ |
|
1061 |
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) |
|
1062 |
public static Object lastIndexOf(final Object self, final Object... args) { |
|
1063 |
try { |
|
1064 |
final ScriptObject sobj = (ScriptObject)Global.toObject(self); |
|
1065 |
final long len = JSType.toUint32(sobj.getLength()); |
|
1066 |
||
1067 |
if (len == 0) { |
|
1068 |
return -1; |
|
1069 |
} |
|
1070 |
||
1071 |
final Object searchElement = (args.length > 0) ? args[0] : ScriptRuntime.UNDEFINED; |
|
1072 |
final long n = (args.length > 1) ? JSType.toLong(args[1]) : (len - 1); |
|
1073 |
||
1074 |
for (long k = (n < 0) ? (len - Math.abs(n)) : Math.min(n, len - 1); k >= 0; k--) { |
|
1075 |
if (sobj.has(k)) { |
|
1076 |
if (ScriptRuntime.EQ_STRICT(sobj.get(k), searchElement)) { |
|
1077 |
return k; |
|
1078 |
} |
|
1079 |
} |
|
1080 |
} |
|
1081 |
} catch (final ClassCastException | NullPointerException e) { |
|
16188 | 1082 |
typeError("not.an.object", ScriptRuntime.safeToString(self)); |
16147 | 1083 |
} |
1084 |
||
1085 |
return -1; |
|
1086 |
} |
|
1087 |
||
1088 |
/** |
|
1089 |
* ECMA 15.4.4.16 Array.prototype.every ( callbackfn [ , thisArg ] ) |
|
1090 |
* |
|
1091 |
* @param self self reference |
|
1092 |
* @param callbackfn callback function per element |
|
1093 |
* @param thisArg this argument |
|
1094 |
* @return true if callback function return true for every element in the array, false otherwise |
|
1095 |
*/ |
|
1096 |
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) |
|
1097 |
public static Object every(final Object self, final Object callbackfn, final Object thisArg) { |
|
1098 |
return applyEvery(Global.toObject(self), callbackfn, thisArg); |
|
1099 |
} |
|
1100 |
||
1101 |
private static boolean applyEvery(final Object self, final Object callbackfn, final Object thisArg) { |
|
1102 |
return new IteratorAction<Boolean>(Global.toObject(self), callbackfn, thisArg, true) { |
|
1103 |
@Override |
|
1104 |
protected boolean forEach(final Object val, final int i) throws Throwable { |
|
1105 |
return (result = (boolean)EVERY_CALLBACK_INVOKER.invokeExact(callbackfn, thisArg, val, i, self)); |
|
1106 |
} |
|
1107 |
}.apply(); |
|
1108 |
} |
|
1109 |
||
1110 |
/** |
|
1111 |
* ECMA 15.4.4.17 Array.prototype.some ( callbackfn [ , thisArg ] ) |
|
1112 |
* |
|
1113 |
* @param self self reference |
|
1114 |
* @param callbackfn callback function per element |
|
1115 |
* @param thisArg this argument |
|
1116 |
* @return true if callback function returned true for any element in the array, false otherwise |
|
1117 |
*/ |
|
1118 |
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) |
|
1119 |
public static Object some(final Object self, final Object callbackfn, final Object thisArg) { |
|
1120 |
return new IteratorAction<Boolean>(Global.toObject(self), callbackfn, thisArg, false) { |
|
1121 |
@Override |
|
1122 |
protected boolean forEach(final Object val, final int i) throws Throwable { |
|
1123 |
return !(result = (boolean)SOME_CALLBACK_INVOKER.invokeExact(callbackfn, thisArg, val, i, self)); |
|
1124 |
} |
|
1125 |
}.apply(); |
|
1126 |
} |
|
1127 |
||
1128 |
/** |
|
1129 |
* ECMA 15.4.4.18 Array.prototype.forEach ( callbackfn [ , thisArg ] ) |
|
1130 |
* |
|
1131 |
* @param self self reference |
|
1132 |
* @param callbackfn callback function per element |
|
1133 |
* @param thisArg this argument |
|
1134 |
* @return undefined |
|
1135 |
*/ |
|
1136 |
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) |
|
1137 |
public static Object forEach(final Object self, final Object callbackfn, final Object thisArg) { |
|
1138 |
return new IteratorAction<Object>(Global.toObject(self), callbackfn, thisArg, ScriptRuntime.UNDEFINED) { |
|
1139 |
@Override |
|
1140 |
protected boolean forEach(final Object val, final int i) throws Throwable { |
|
1141 |
FOREACH_CALLBACK_INVOKER.invokeExact(callbackfn, thisArg, val, i, self); |
|
1142 |
return true; |
|
1143 |
} |
|
1144 |
}.apply(); |
|
1145 |
} |
|
1146 |
||
1147 |
/** |
|
1148 |
* ECMA 15.4.4.19 Array.prototype.map ( callbackfn [ , thisArg ] ) |
|
1149 |
* |
|
1150 |
* @param self self reference |
|
1151 |
* @param callbackfn callback function per element |
|
1152 |
* @param thisArg this argument |
|
1153 |
* @return array with elements transformed by map function |
|
1154 |
*/ |
|
1155 |
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) |
|
1156 |
public static Object map(final Object self, final Object callbackfn, final Object thisArg) { |
|
1157 |
return new IteratorAction<NativeArray>(Global.toObject(self), callbackfn, thisArg, null) { |
|
1158 |
@Override |
|
1159 |
protected boolean forEach(final Object val, final int i) throws Throwable { |
|
1160 |
final Object r = MAP_CALLBACK_INVOKER.invokeExact(callbackfn, thisArg, val, i, self); |
|
1161 |
result.defineOwnProperty(index, r); |
|
1162 |
return true; |
|
1163 |
} |
|
1164 |
||
1165 |
@Override |
|
1166 |
public void applyLoopBegin(final ArrayLikeIterator<Object> iter0) { |
|
1167 |
// map return array should be of same length as source array |
|
1168 |
// even if callback reduces source array length |
|
1169 |
result = new NativeArray(iter0.getLength()); |
|
1170 |
} |
|
1171 |
}.apply(); |
|
1172 |
} |
|
1173 |
||
1174 |
/** |
|
1175 |
* ECMA 15.4.4.20 Array.prototype.filter ( callbackfn [ , thisArg ] ) |
|
1176 |
* |
|
1177 |
* @param self self reference |
|
1178 |
* @param callbackfn callback function per element |
|
1179 |
* @param thisArg this argument |
|
1180 |
* @return filtered array |
|
1181 |
*/ |
|
1182 |
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) |
|
1183 |
public static Object filter(final Object self, final Object callbackfn, final Object thisArg) { |
|
1184 |
return new IteratorAction<NativeArray>(Global.toObject(self), callbackfn, thisArg, new NativeArray()) { |
|
1185 |
private int to = 0; |
|
1186 |
||
1187 |
@Override |
|
1188 |
protected boolean forEach(final Object val, final int i) throws Throwable { |
|
1189 |
if ((boolean)FILTER_CALLBACK_INVOKER.invokeExact(callbackfn, thisArg, val, i, self)) { |
|
1190 |
result.defineOwnProperty(to++, val); |
|
1191 |
} |
|
1192 |
return true; |
|
1193 |
} |
|
1194 |
}.apply(); |
|
1195 |
} |
|
1196 |
||
1197 |
private static Object reduceInner(final ArrayLikeIterator<Object> iter, final Object self, final Object... args) { |
|
1198 |
final Object callbackfn = args.length > 0 ? args[0] : ScriptRuntime.UNDEFINED; |
|
1199 |
final boolean initialValuePresent = args.length > 1; |
|
1200 |
||
1201 |
Object initialValue = initialValuePresent ? args[1] : ScriptRuntime.UNDEFINED; |
|
1202 |
||
1203 |
if (callbackfn == ScriptRuntime.UNDEFINED) { |
|
16188 | 1204 |
typeError("not.a.function", "undefined"); |
16147 | 1205 |
} |
1206 |
||
1207 |
if (!initialValuePresent) { |
|
1208 |
if (iter.hasNext()) { |
|
1209 |
initialValue = iter.next(); |
|
1210 |
} else { |
|
16188 | 1211 |
typeError("array.reduce.invalid.init"); |
16147 | 1212 |
} |
1213 |
} |
|
1214 |
||
1215 |
//if initial value is ScriptRuntime.UNDEFINED - step forward once. |
|
1216 |
return new IteratorAction<Object>(Global.toObject(self), callbackfn, ScriptRuntime.UNDEFINED, initialValue, iter) { |
|
1217 |
@Override |
|
1218 |
protected boolean forEach(final Object val, final int i) throws Throwable { |
|
1219 |
// TODO: why can't I declare the second arg as Undefined.class? |
|
1220 |
result = REDUCE_CALLBACK_INVOKER.invokeExact(callbackfn, ScriptRuntime.UNDEFINED, result, val, i, self); |
|
1221 |
return true; |
|
1222 |
} |
|
1223 |
}.apply(); |
|
1224 |
} |
|
1225 |
||
1226 |
/** |
|
1227 |
* ECMA 15.4.4.21 Array.prototype.reduce ( callbackfn [ , initialValue ] ) |
|
1228 |
* |
|
1229 |
* @param self self reference |
|
1230 |
* @param args arguments to reduce |
|
1231 |
* @return accumulated result |
|
1232 |
*/ |
|
1233 |
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) |
|
1234 |
public static Object reduce(final Object self, final Object... args) { |
|
1235 |
return reduceInner(arrayLikeIterator(self), self, args); |
|
1236 |
} |
|
1237 |
||
1238 |
/** |
|
1239 |
* ECMA 15.4.4.22 Array.prototype.reduceRight ( callbackfn [ , initialValue ] ) |
|
1240 |
* |
|
1241 |
* @param self self reference |
|
1242 |
* @param args arguments to reduce |
|
1243 |
* @return accumulated result |
|
1244 |
*/ |
|
1245 |
@Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) |
|
1246 |
public static Object reduceRight(final Object self, final Object... args) { |
|
1247 |
return reduceInner(reverseArrayLikeIterator(self), self, args); |
|
1248 |
} |
|
1249 |
||
1250 |
/** |
|
1251 |
* Determine if Java bulk array operations may be used on the underlying |
|
1252 |
* storage. This is possible only if the object's prototype chain is empty |
|
1253 |
* or each of the prototypes in the chain is empty. |
|
1254 |
* |
|
1255 |
* @param self the object to examine |
|
1256 |
* @return true if optimizable |
|
1257 |
*/ |
|
1258 |
private static boolean bulkable(final ScriptObject self) { |
|
1259 |
return self.isArray() && !hasInheritedArrayEntries(self); |
|
1260 |
} |
|
1261 |
||
1262 |
private static boolean hasInheritedArrayEntries(final ScriptObject self) { |
|
1263 |
ScriptObject proto = self.getProto(); |
|
1264 |
while (proto != null) { |
|
1265 |
if (proto.hasArrayEntries()) { |
|
1266 |
return true; |
|
1267 |
} |
|
1268 |
proto = proto.getProto(); |
|
1269 |
} |
|
1270 |
||
1271 |
return false; |
|
1272 |
} |
|
1273 |
||
1274 |
private static MethodHandle createIteratorCallbackInvoker(final Class<?> rtype) { |
|
1275 |
return Bootstrap.createDynamicInvoker("dyn:call", rtype, Object.class, Object.class, Object.class, |
|
1276 |
int.class, Object.class); |
|
1277 |
||
1278 |
} |
|
1279 |
} |