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Diffstat (limited to 'src/jdk/nashorn/internal/objects/NativeArray.java')
| -rw-r--r-- | src/jdk/nashorn/internal/objects/NativeArray.java | 1914 |
1 files changed, 0 insertions, 1914 deletions
diff --git a/src/jdk/nashorn/internal/objects/NativeArray.java b/src/jdk/nashorn/internal/objects/NativeArray.java deleted file mode 100644 index 0b036a27..00000000 --- a/src/jdk/nashorn/internal/objects/NativeArray.java +++ /dev/null @@ -1,1914 +0,0 @@ -/* - * Copyright (c) 2010, 2014, 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.objects; - -import static jdk.nashorn.internal.runtime.ECMAErrors.rangeError; -import static jdk.nashorn.internal.runtime.ECMAErrors.typeError; -import static jdk.nashorn.internal.runtime.PropertyDescriptor.VALUE; -import static jdk.nashorn.internal.runtime.PropertyDescriptor.WRITABLE; -import static jdk.nashorn.internal.runtime.arrays.ArrayIndex.isValidArrayIndex; -import static jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator.arrayLikeIterator; -import static jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator.reverseArrayLikeIterator; -import static jdk.nashorn.internal.runtime.linker.NashornCallSiteDescriptor.CALLSITE_STRICT; - -import java.lang.invoke.MethodHandle; -import java.util.ArrayList; -import java.util.Arrays; -import java.util.Collections; -import java.util.Comparator; -import java.util.Iterator; -import java.util.List; -import java.util.concurrent.Callable; -import jdk.internal.dynalink.CallSiteDescriptor; -import jdk.internal.dynalink.linker.GuardedInvocation; -import jdk.internal.dynalink.linker.LinkRequest; -import jdk.nashorn.api.scripting.JSObject; -import jdk.nashorn.internal.objects.annotations.Attribute; -import jdk.nashorn.internal.objects.annotations.Constructor; -import jdk.nashorn.internal.objects.annotations.Function; -import jdk.nashorn.internal.objects.annotations.Getter; -import jdk.nashorn.internal.objects.annotations.ScriptClass; -import jdk.nashorn.internal.objects.annotations.Setter; -import jdk.nashorn.internal.objects.annotations.SpecializedFunction; -import jdk.nashorn.internal.objects.annotations.SpecializedFunction.LinkLogic; -import jdk.nashorn.internal.objects.annotations.Where; -import jdk.nashorn.internal.runtime.Context; -import jdk.nashorn.internal.runtime.Debug; -import jdk.nashorn.internal.runtime.JSType; -import jdk.nashorn.internal.runtime.OptimisticBuiltins; -import jdk.nashorn.internal.runtime.PropertyDescriptor; -import jdk.nashorn.internal.runtime.PropertyMap; -import jdk.nashorn.internal.runtime.ScriptFunction; -import jdk.nashorn.internal.runtime.ScriptObject; -import jdk.nashorn.internal.runtime.ScriptRuntime; -import jdk.nashorn.internal.runtime.Undefined; -import jdk.nashorn.internal.runtime.arrays.ArrayData; -import jdk.nashorn.internal.runtime.arrays.ArrayIndex; -import jdk.nashorn.internal.runtime.arrays.ArrayLikeIterator; -import jdk.nashorn.internal.runtime.arrays.ContinuousArrayData; -import jdk.nashorn.internal.runtime.arrays.IntElements; -import jdk.nashorn.internal.runtime.arrays.IteratorAction; -import jdk.nashorn.internal.runtime.arrays.NumericElements; -import jdk.nashorn.internal.runtime.linker.Bootstrap; -import jdk.nashorn.internal.runtime.linker.InvokeByName; - -/** - * Runtime representation of a JavaScript array. NativeArray only holds numeric - * keyed values. All other values are stored in spill. - */ -@ScriptClass("Array") -public final class NativeArray extends ScriptObject implements OptimisticBuiltins { - private static final Object JOIN = new Object(); - private static final Object EVERY_CALLBACK_INVOKER = new Object(); - private static final Object SOME_CALLBACK_INVOKER = new Object(); - private static final Object FOREACH_CALLBACK_INVOKER = new Object(); - private static final Object MAP_CALLBACK_INVOKER = new Object(); - private static final Object FILTER_CALLBACK_INVOKER = new Object(); - private static final Object REDUCE_CALLBACK_INVOKER = new Object(); - private static final Object CALL_CMP = new Object(); - private static final Object TO_LOCALE_STRING = new Object(); - - /* - * Constructors. - */ - NativeArray() { - this(ArrayData.initialArray()); - } - - NativeArray(final long length) { - this(ArrayData.allocate(length)); - } - - NativeArray(final int[] array) { - this(ArrayData.allocate(array)); - } - - NativeArray(final double[] array) { - this(ArrayData.allocate(array)); - } - - NativeArray(final long[] array) { - this(ArrayData.allocate(array.length)); - - ArrayData arrayData = this.getArray(); - Class<?> widest = int.class; - - for (int index = 0; index < array.length; index++) { - final long value = array[index]; - - if (widest == int.class && JSType.isRepresentableAsInt(value)) { - arrayData = arrayData.set(index, (int) value, false); - } else if (widest != Object.class && JSType.isRepresentableAsDouble(value)) { - arrayData = arrayData.set(index, (double) value, false); - widest = double.class; - } else { - arrayData = arrayData.set(index, (Object) value, false); - widest = Object.class; - } - } - - this.setArray(arrayData); - } - - NativeArray(final Object[] array) { - this(ArrayData.allocate(array.length)); - - ArrayData arrayData = this.getArray(); - - for (int index = 0; index < array.length; index++) { - final Object value = array[index]; - - if (value == ScriptRuntime.EMPTY) { - arrayData = arrayData.delete(index); - } else { - arrayData = arrayData.set(index, value, false); - } - } - - this.setArray(arrayData); - } - - NativeArray(final ArrayData arrayData) { - this(arrayData, Global.instance()); - } - - NativeArray(final ArrayData arrayData, final Global global) { - super(global.getArrayPrototype(), $nasgenmap$); - setArray(arrayData); - setIsArray(); - } - - @Override - protected GuardedInvocation findGetMethod(final CallSiteDescriptor desc, final LinkRequest request, final String operator) { - final GuardedInvocation inv = getArray().findFastGetMethod(getArray().getClass(), desc, request, operator); - if (inv != null) { - return inv; - } - return super.findGetMethod(desc, request, operator); - } - - @Override - protected GuardedInvocation findGetIndexMethod(final CallSiteDescriptor desc, final LinkRequest request) { - final GuardedInvocation inv = getArray().findFastGetIndexMethod(getArray().getClass(), desc, request); - if (inv != null) { - return inv; - } - return super.findGetIndexMethod(desc, request); - } - - @Override - protected GuardedInvocation findSetIndexMethod(final CallSiteDescriptor desc, final LinkRequest request) { - final GuardedInvocation inv = getArray().findFastSetIndexMethod(getArray().getClass(), desc, request); - if (inv != null) { - return inv; - } - - return super.findSetIndexMethod(desc, request); - } - - private static InvokeByName getJOIN() { - return Global.instance().getInvokeByName(JOIN, - new Callable<InvokeByName>() { - @Override - public InvokeByName call() { - return new InvokeByName("join", ScriptObject.class); - } - }); - } - - private static MethodHandle createIteratorCallbackInvoker(final Object key, final Class<?> rtype) { - return Global.instance().getDynamicInvoker(key, - new Callable<MethodHandle>() { - @Override - public MethodHandle call() { - return Bootstrap.createDynamicInvoker("dyn:call", rtype, Object.class, Object.class, Object.class, - double.class, Object.class); - } - }); - } - - private static MethodHandle getEVERY_CALLBACK_INVOKER() { - return createIteratorCallbackInvoker(EVERY_CALLBACK_INVOKER, boolean.class); - } - - private static MethodHandle getSOME_CALLBACK_INVOKER() { - return createIteratorCallbackInvoker(SOME_CALLBACK_INVOKER, boolean.class); - } - - private static MethodHandle getFOREACH_CALLBACK_INVOKER() { - return createIteratorCallbackInvoker(FOREACH_CALLBACK_INVOKER, void.class); - } - - private static MethodHandle getMAP_CALLBACK_INVOKER() { - return createIteratorCallbackInvoker(MAP_CALLBACK_INVOKER, Object.class); - } - - private static MethodHandle getFILTER_CALLBACK_INVOKER() { - return createIteratorCallbackInvoker(FILTER_CALLBACK_INVOKER, boolean.class); - } - - private static MethodHandle getREDUCE_CALLBACK_INVOKER() { - return Global.instance().getDynamicInvoker(REDUCE_CALLBACK_INVOKER, - new Callable<MethodHandle>() { - @Override - public MethodHandle call() { - return Bootstrap.createDynamicInvoker("dyn:call", Object.class, Object.class, - Undefined.class, Object.class, Object.class, double.class, Object.class); - } - }); - } - - private static MethodHandle getCALL_CMP() { - return Global.instance().getDynamicInvoker(CALL_CMP, - new Callable<MethodHandle>() { - @Override - public MethodHandle call() { - return Bootstrap.createDynamicInvoker("dyn:call", double.class, - Object.class, Object.class, Object.class, Object.class); - } - }); - } - - private static InvokeByName getTO_LOCALE_STRING() { - return Global.instance().getInvokeByName(TO_LOCALE_STRING, - new Callable<InvokeByName>() { - @Override - public InvokeByName call() { - return new InvokeByName("toLocaleString", ScriptObject.class, String.class); - } - }); - } - - // initialized by nasgen - private static PropertyMap $nasgenmap$; - - @Override - public String getClassName() { - return "Array"; - } - - @Override - public Object getLength() { - final long length = getArray().length(); - assert length >= 0L; - if (length <= Integer.MAX_VALUE) { - return (int)length; - } - return length; - } - - private boolean defineLength(final long oldLen, final PropertyDescriptor oldLenDesc, final PropertyDescriptor desc, final boolean reject) { - // Step 3a - if (!desc.has(VALUE)) { - return super.defineOwnProperty("length", desc, reject); - } - - // Step 3b - final PropertyDescriptor newLenDesc = desc; - - // Step 3c and 3d - get new length and convert to long - final long newLen = NativeArray.validLength(newLenDesc.getValue()); - - // Step 3e - note that we need to convert to int or double as long is not considered a JS number type anymore - newLenDesc.setValue(JSType.toNarrowestNumber(newLen)); - - // Step 3f - // increasing array length - just need to set new length value (and attributes if any) and return - if (newLen >= oldLen) { - return super.defineOwnProperty("length", newLenDesc, reject); - } - - // Step 3g - if (!oldLenDesc.isWritable()) { - if (reject) { - throw typeError("property.not.writable", "length", ScriptRuntime.safeToString(this)); - } - return false; - } - - // Step 3h and 3i - final boolean newWritable = !newLenDesc.has(WRITABLE) || newLenDesc.isWritable(); - if (!newWritable) { - newLenDesc.setWritable(true); - } - - // Step 3j and 3k - final boolean succeeded = super.defineOwnProperty("length", newLenDesc, reject); - if (!succeeded) { - return false; - } - - // Step 3l - // make sure that length is set till the point we can delete the old elements - long o = oldLen; - while (newLen < o) { - o--; - final boolean deleteSucceeded = delete(o, false); - if (!deleteSucceeded) { - newLenDesc.setValue(o + 1); - if (!newWritable) { - newLenDesc.setWritable(false); - } - super.defineOwnProperty("length", newLenDesc, false); - if (reject) { - throw typeError("property.not.writable", "length", ScriptRuntime.safeToString(this)); - } - return false; - } - } - - // Step 3m - if (!newWritable) { - // make 'length' property not writable - final ScriptObject newDesc = Global.newEmptyInstance(); - newDesc.set(WRITABLE, false, 0); - return super.defineOwnProperty("length", newDesc, false); - } - - return true; - } - - /** - * ECMA 15.4.5.1 [[DefineOwnProperty]] ( P, Desc, Throw ) - */ - @Override - public boolean defineOwnProperty(final String key, final Object propertyDesc, final boolean reject) { - final PropertyDescriptor desc = toPropertyDescriptor(Global.instance(), propertyDesc); - - // never be undefined as "length" is always defined and can't be deleted for arrays - // Step 1 - final PropertyDescriptor oldLenDesc = (PropertyDescriptor) super.getOwnPropertyDescriptor("length"); - - // Step 2 - // get old length and convert to long. Always a Long/Uint32 but we take the safe road. - final long oldLen = JSType.toUint32(oldLenDesc.getValue()); - - // Step 3 - if ("length".equals(key)) { - // check for length being made non-writable - final boolean result = defineLength(oldLen, oldLenDesc, desc, reject); - if (desc.has(WRITABLE) && !desc.isWritable()) { - setIsLengthNotWritable(); - } - return result; - } - - // Step 4a - final int index = ArrayIndex.getArrayIndex(key); - if (ArrayIndex.isValidArrayIndex(index)) { - final long longIndex = ArrayIndex.toLongIndex(index); - // Step 4b - // setting an element beyond current length, but 'length' is not writable - if (longIndex >= oldLen && !oldLenDesc.isWritable()) { - if (reject) { - throw typeError("property.not.writable", Long.toString(longIndex), ScriptRuntime.safeToString(this)); - } - return false; - } - - // Step 4c - // set the new array element - final boolean succeeded = super.defineOwnProperty(key, desc, false); - - // Step 4d - if (!succeeded) { - if (reject) { - throw typeError("cant.redefine.property", key, ScriptRuntime.safeToString(this)); - } - return false; - } - - // Step 4e -- adjust new length based on new element index that is set - if (longIndex >= oldLen) { - oldLenDesc.setValue(longIndex + 1); - super.defineOwnProperty("length", oldLenDesc, false); - } - - // Step 4f - return true; - } - - // not an index property - return super.defineOwnProperty(key, desc, reject); - } - - /** - * Spec. mentions use of [[DefineOwnProperty]] for indexed properties in - * certain places (eg. Array.prototype.map, filter). We can not use ScriptObject.set - * method in such cases. This is because set method uses inherited setters (if any) - * from any object in proto chain such as Array.prototype, Object.prototype. - * This method directly sets a particular element value in the current object. - * - * @param index key for property - * @param value value to define - */ - @Override - public final void defineOwnProperty(final int index, final Object value) { - assert isValidArrayIndex(index) : "invalid array index"; - final long longIndex = ArrayIndex.toLongIndex(index); - if (longIndex >= getArray().length()) { - // make array big enough to hold.. - setArray(getArray().ensure(longIndex)); - } - setArray(getArray().set(index, value, false)); - } - - /** - * Return the array contents upcasted as an ObjectArray, regardless of - * representation - * - * @return an object array - */ - public Object[] asObjectArray() { - return getArray().asObjectArray(); - } - - @Override - public void setIsLengthNotWritable() { - super.setIsLengthNotWritable(); - setArray(ArrayData.setIsLengthNotWritable(getArray())); - } - - /** - * ECMA 15.4.3.2 Array.isArray ( arg ) - * - * @param self self reference - * @param arg argument - object to check - * @return true if argument is an array - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) - public static boolean isArray(final Object self, final Object arg) { - return isArray(arg) || (arg instanceof JSObject && ((JSObject)arg).isArray()); - } - - /** - * Length getter - * @param self self reference - * @return the length of the object - */ - @Getter(attributes = Attribute.NOT_ENUMERABLE | Attribute.NOT_CONFIGURABLE) - public static Object length(final Object self) { - if (isArray(self)) { - final long length = ((ScriptObject) self).getArray().length(); - assert length >= 0L; - // Cast to the narrowest supported numeric type to help optimistic type calculator - if (length <= Integer.MAX_VALUE) { - return (int) length; - } - return (double) length; - } - - return 0; - } - - /** - * Length setter - * @param self self reference - * @param length new length property - */ - @Setter(attributes = Attribute.NOT_ENUMERABLE | Attribute.NOT_CONFIGURABLE) - public static void length(final Object self, final Object length) { - if (isArray(self)) { - ((ScriptObject)self).setLength(validLength(length)); - } - } - - /** - * Prototype length getter - * @param self self reference - * @return the length of the object - */ - @Getter(name = "length", where = Where.PROTOTYPE, attributes = Attribute.NOT_ENUMERABLE | Attribute.NOT_CONFIGURABLE) - public static Object getProtoLength(final Object self) { - return length(self); // Same as instance getter but we can't make nasgen use the same method for prototype - } - - /** - * Prototype length setter - * @param self self reference - * @param length new length property - */ - @Setter(name = "length", where = Where.PROTOTYPE, attributes = Attribute.NOT_ENUMERABLE | Attribute.NOT_CONFIGURABLE) - public static void setProtoLength(final Object self, final Object length) { - length(self, length); // Same as instance setter but we can't make nasgen use the same method for prototype - } - - static long validLength(final Object length) { - // ES5 15.4.5.1, steps 3.c and 3.d require two ToNumber conversions here - final double doubleLength = JSType.toNumber(length); - if (doubleLength != JSType.toUint32(length)) { - throw rangeError("inappropriate.array.length", ScriptRuntime.safeToString(length)); - } - return (long) doubleLength; - } - - /** - * ECMA 15.4.4.2 Array.prototype.toString ( ) - * - * @param self self reference - * @return string representation of array - */ - @Function(attributes = Attribute.NOT_ENUMERABLE) - public static Object toString(final Object self) { - final Object obj = Global.toObject(self); - if (obj instanceof ScriptObject) { - final InvokeByName joinInvoker = getJOIN(); - final ScriptObject sobj = (ScriptObject)obj; - try { - final Object join = joinInvoker.getGetter().invokeExact(sobj); - if (Bootstrap.isCallable(join)) { - return joinInvoker.getInvoker().invokeExact(join, sobj); - } - } catch (final RuntimeException | Error e) { - throw e; - } catch (final Throwable t) { - throw new RuntimeException(t); - } - } - - // FIXME: should lookup Object.prototype.toString and call that? - return ScriptRuntime.builtinObjectToString(self); - } - - /** - * Assert that an array is numeric, if not throw type error - * @param self self array to check - * @return true if numeric - */ - @Function(attributes = Attribute.NOT_ENUMERABLE) - public static Object assertNumeric(final Object self) { - if(!(self instanceof NativeArray && ((NativeArray)self).getArray().getOptimisticType().isNumeric())) { - throw typeError("not.a.numeric.array", ScriptRuntime.safeToString(self)); - } - return Boolean.TRUE; - } - - /** - * ECMA 15.4.4.3 Array.prototype.toLocaleString ( ) - * - * @param self self reference - * @return locale specific string representation for array - */ - @Function(attributes = Attribute.NOT_ENUMERABLE) - public static String toLocaleString(final Object self) { - final StringBuilder sb = new StringBuilder(); - final Iterator<Object> iter = arrayLikeIterator(self, true); - - while (iter.hasNext()) { - final Object obj = iter.next(); - - if (obj != null && obj != ScriptRuntime.UNDEFINED) { - final Object val = JSType.toScriptObject(obj); - - try { - if (val instanceof ScriptObject) { - final InvokeByName localeInvoker = getTO_LOCALE_STRING(); - final ScriptObject sobj = (ScriptObject)val; - final Object toLocaleString = localeInvoker.getGetter().invokeExact(sobj); - - if (Bootstrap.isCallable(toLocaleString)) { - sb.append((String)localeInvoker.getInvoker().invokeExact(toLocaleString, sobj)); - } else { - throw typeError("not.a.function", "toLocaleString"); - } - } - } catch (final Error|RuntimeException t) { - throw t; - } catch (final Throwable t) { - throw new RuntimeException(t); - } - } - - if (iter.hasNext()) { - sb.append(","); - } - } - - return sb.toString(); - } - - /** - * ECMA 15.4.2.2 new Array (len) - * - * @param newObj was the new operator used to instantiate this array - * @param self self reference - * @param args arguments (length) - * @return the new NativeArray - */ - @Constructor(arity = 1) - public static NativeArray construct(final boolean newObj, final Object self, final Object... args) { - switch (args.length) { - case 0: - return new NativeArray(0); - case 1: - final Object len = args[0]; - if (len instanceof Number) { - long length; - if (len instanceof Integer || len instanceof Long) { - length = ((Number) len).longValue(); - if (length >= 0 && length < JSType.MAX_UINT) { - return new NativeArray(length); - } - } - - length = JSType.toUint32(len); - - /* - * If the argument len is a Number and ToUint32(len) is equal to - * len, then the length property of the newly constructed object - * is set to ToUint32(len). If the argument len is a Number and - * ToUint32(len) is not equal to len, a RangeError exception is - * thrown. - */ - final double numberLength = ((Number) len).doubleValue(); - if (length != numberLength) { - throw rangeError("inappropriate.array.length", JSType.toString(numberLength)); - } - - return new NativeArray(length); - } - /* - * If the argument len is not a Number, then the length property of - * the newly constructed object is set to 1 and the 0 property of - * the newly constructed object is set to len - */ - return new NativeArray(new Object[]{args[0]}); - //fallthru - default: - return new NativeArray(args); - } - } - - /** - * ECMA 15.4.2.2 new Array (len) - * - * Specialized constructor for zero arguments - empty array - * - * @param newObj was the new operator used to instantiate this array - * @param self self reference - * @return the new NativeArray - */ - @SpecializedFunction(isConstructor=true) - public static NativeArray construct(final boolean newObj, final Object self) { - return new NativeArray(0); - } - - /** - * ECMA 15.4.2.2 new Array (len) - * - * Specialized constructor for zero arguments - empty array - * - * @param newObj was the new operator used to instantiate this array - * @param self self reference - * @param element first element - * @return the new NativeArray - */ - @SpecializedFunction(isConstructor=true) - public static Object construct(final boolean newObj, final Object self, final boolean element) { - return new NativeArray(new Object[] { element }); - } - - /** - * ECMA 15.4.2.2 new Array (len) - * - * Specialized constructor for one integer argument (length) - * - * @param newObj was the new operator used to instantiate this array - * @param self self reference - * @param length array length - * @return the new NativeArray - */ - @SpecializedFunction(isConstructor=true) - public static NativeArray construct(final boolean newObj, final Object self, final int length) { - if (length >= 0) { - return new NativeArray(length); - } - - return construct(newObj, self, new Object[]{length}); - } - - /** - * ECMA 15.4.2.2 new Array (len) - * - * Specialized constructor for one long argument (length) - * - * @param newObj was the new operator used to instantiate this array - * @param self self reference - * @param length array length - * @return the new NativeArray - */ - @SpecializedFunction(isConstructor=true) - public static NativeArray construct(final boolean newObj, final Object self, final long length) { - if (length >= 0L && length <= JSType.MAX_UINT) { - return new NativeArray(length); - } - - return construct(newObj, self, new Object[]{length}); - } - - /** - * ECMA 15.4.2.2 new Array (len) - * - * Specialized constructor for one double argument (length) - * - * @param newObj was the new operator used to instantiate this array - * @param self self reference - * @param length array length - * @return the new NativeArray - */ - @SpecializedFunction(isConstructor=true) - public static NativeArray construct(final boolean newObj, final Object self, final double length) { - final long uint32length = JSType.toUint32(length); - - if (uint32length == length) { - return new NativeArray(uint32length); - } - - return construct(newObj, self, new Object[]{length}); - } - - /** - * ECMA 15.4.4.4 Array.prototype.concat ( [ item1 [ , item2 [ , ... ] ] ] ) - * - * @param self self reference - * @param arg argument - * @return resulting NativeArray - */ - @SpecializedFunction(linkLogic=ConcatLinkLogic.class) - public static NativeArray concat(final Object self, final int arg) { - final ContinuousArrayData newData = getContinuousArrayDataCCE(self, Integer.class).copy(); //get at least an integer data copy of this data - newData.fastPush(arg); //add an integer to its end - return new NativeArray(newData); - } - - /** - * ECMA 15.4.4.4 Array.prototype.concat ( [ item1 [ , item2 [ , ... ] ] ] ) - * - * @param self self reference - * @param arg argument - * @return resulting NativeArray - */ - @SpecializedFunction(linkLogic=ConcatLinkLogic.class) - public static NativeArray concat(final Object self, final long arg) { - final ContinuousArrayData newData = getContinuousArrayDataCCE(self, Long.class).copy(); //get at least a long array data copy of this data - newData.fastPush(arg); //add a long at the end - return new NativeArray(newData); - } - - /** - * ECMA 15.4.4.4 Array.prototype.concat ( [ item1 [ , item2 [ , ... ] ] ] ) - * - * @param self self reference - * @param arg argument - * @return resulting NativeArray - */ - @SpecializedFunction(linkLogic=ConcatLinkLogic.class) - public static NativeArray concat(final Object self, final double arg) { - final ContinuousArrayData newData = getContinuousArrayDataCCE(self, Double.class).copy(); //get at least a number array data copy of this data - newData.fastPush(arg); //add a double at the end - return new NativeArray(newData); - } - - /** - * ECMA 15.4.4.4 Array.prototype.concat ( [ item1 [ , item2 [ , ... ] ] ] ) - * - * @param self self reference - * @param arg argument - * @return resulting NativeArray - */ - @SpecializedFunction(linkLogic=ConcatLinkLogic.class) - public static NativeArray concat(final Object self, final Object arg) { - //arg is [NativeArray] of same type. - final ContinuousArrayData selfData = getContinuousArrayDataCCE(self); - final ContinuousArrayData newData; - - if (arg instanceof NativeArray) { - final ContinuousArrayData argData = (ContinuousArrayData)((NativeArray)arg).getArray(); - if (argData.isEmpty()) { - newData = selfData.copy(); - } else if (selfData.isEmpty()) { - newData = argData.copy(); - } else { - final Class<?> widestElementType = selfData.widest(argData).getBoxedElementType(); - newData = ((ContinuousArrayData)selfData.convert(widestElementType)).fastConcat((ContinuousArrayData)argData.convert(widestElementType)); - } - } else { - newData = getContinuousArrayDataCCE(self, Object.class).copy(); - newData.fastPush(arg); - } - - return new NativeArray(newData); - } - - /** - * ECMA 15.4.4.4 Array.prototype.concat ( [ item1 [ , item2 [ , ... ] ] ] ) - * - * @param self self reference - * @param args arguments - * @return resulting NativeArray - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static NativeArray concat(final Object self, final Object... args) { - final ArrayList<Object> list = new ArrayList<>(); - - concatToList(list, Global.toObject(self)); - - for (final Object obj : args) { - concatToList(list, obj); - } - - return new NativeArray(list.toArray()); - } - - private static void concatToList(final ArrayList<Object> list, final Object obj) { - final boolean isScriptArray = isArray(obj); - final boolean isScriptObject = isScriptArray || obj instanceof ScriptObject; - if (isScriptArray || obj instanceof Iterable || (obj != null && obj.getClass().isArray())) { - final Iterator<Object> iter = arrayLikeIterator(obj, true); - if (iter.hasNext()) { - for (int i = 0; iter.hasNext(); ++i) { - final Object value = iter.next(); - final boolean lacksIndex = obj != null && !((ScriptObject)obj).has(i); - if (value == ScriptRuntime.UNDEFINED && isScriptObject && lacksIndex) { - // TODO: eventually rewrite arrayLikeIterator to use a three-state enum for handling - // UNDEFINED instead of an "includeUndefined" boolean with states SKIP, INCLUDE, - // RETURN_EMPTY. Until then, this is how we'll make sure that empty elements don't make it - // into the concatenated array. - list.add(ScriptRuntime.EMPTY); - } else { - list.add(value); - } - } - } else if (!isScriptArray) { - list.add(obj); // add empty object, but not an empty array - } - } else { - // single element, add it - list.add(obj); - } - } - - /** - * ECMA 15.4.4.5 Array.prototype.join (separator) - * - * @param self self reference - * @param separator element separator - * @return string representation after join - */ - @Function(attributes = Attribute.NOT_ENUMERABLE) - public static String join(final Object self, final Object separator) { - final StringBuilder sb = new StringBuilder(); - final Iterator<Object> iter = arrayLikeIterator(self, true); - final String sep = separator == ScriptRuntime.UNDEFINED ? "," : JSType.toString(separator); - - while (iter.hasNext()) { - final Object obj = iter.next(); - - if (obj != null && obj != ScriptRuntime.UNDEFINED) { - sb.append(JSType.toString(obj)); - } - - if (iter.hasNext()) { - sb.append(sep); - } - } - - return sb.toString(); - } - - /** - * Specialization of pop for ContinuousArrayData - * The link guard checks that the array is continuous AND not empty. - * The runtime guard checks that the guard is continuous (CCE otherwise) - * - * Primitive specialization, {@link LinkLogic} - * - * @param self self reference - * @return element popped - * @throws ClassCastException if array is empty, facilitating Undefined return value - */ - @SpecializedFunction(name="pop", linkLogic=PopLinkLogic.class) - public static int popInt(final Object self) { - //must be non empty IntArrayData - return getContinuousNonEmptyArrayDataCCE(self, IntElements.class).fastPopInt(); - } - - /** - * Specialization of pop for ContinuousArrayData - * - * Primitive specialization, {@link LinkLogic} - * - * @param self self reference - * @return element popped - * @throws ClassCastException if array is empty, facilitating Undefined return value - */ - @SpecializedFunction(name="pop", linkLogic=PopLinkLogic.class) - public static double popDouble(final Object self) { - //must be non empty int long or double array data - return getContinuousNonEmptyArrayDataCCE(self, NumericElements.class).fastPopDouble(); - } - - /** - * Specialization of pop for ContinuousArrayData - * - * Primitive specialization, {@link LinkLogic} - * - * @param self self reference - * @return element popped - * @throws ClassCastException if array is empty, facilitating Undefined return value - */ - @SpecializedFunction(name="pop", linkLogic=PopLinkLogic.class) - public static Object popObject(final Object self) { - //can be any data, because the numeric ones will throw cce and force relink - return getContinuousArrayDataCCE(self, null).fastPopObject(); - } - - /** - * ECMA 15.4.4.6 Array.prototype.pop () - * - * @param self self reference - * @return array after pop - */ - @Function(attributes = Attribute.NOT_ENUMERABLE) - public static Object pop(final Object self) { - try { - final ScriptObject sobj = (ScriptObject)self; - - if (bulkable(sobj)) { - return sobj.getArray().pop(); - } - - final long len = JSType.toUint32(sobj.getLength()); - - if (len == 0) { - sobj.set("length", 0, CALLSITE_STRICT); - return ScriptRuntime.UNDEFINED; - } - - final long index = len - 1; - final Object element = sobj.get(index); - - sobj.delete(index, true); - sobj.set("length", index, CALLSITE_STRICT); - - return element; - } catch (final ClassCastException | NullPointerException e) { - throw typeError("not.an.object", ScriptRuntime.safeToString(self)); - } - } - - /** - * ECMA 15.4.4.7 Array.prototype.push (args...) - * - * Primitive specialization, {@link LinkLogic} - * - * @param self self reference - * @param arg a primitive to push - * @return array length after push - */ - @SpecializedFunction(linkLogic=PushLinkLogic.class) - public static double push(final Object self, final int arg) { - return getContinuousArrayDataCCE(self, Integer.class).fastPush(arg); - } - - /** - * ECMA 15.4.4.7 Array.prototype.push (args...) - * - * Primitive specialization, {@link LinkLogic} - * - * @param self self reference - * @param arg a primitive to push - * @return array length after push - */ - @SpecializedFunction(linkLogic=PushLinkLogic.class) - public static double push(final Object self, final long arg) { - return getContinuousArrayDataCCE(self, Long.class).fastPush(arg); - } - - /** - * ECMA 15.4.4.7 Array.prototype.push (args...) - * - * Primitive specialization, {@link LinkLogic} - * - * @param self self reference - * @param arg a primitive to push - * @return array length after push - */ - @SpecializedFunction(linkLogic=PushLinkLogic.class) - public static double push(final Object self, final double arg) { - return getContinuousArrayDataCCE(self, Double.class).fastPush(arg); - } - - /** - * ECMA 15.4.4.7 Array.prototype.push (args...) - * - * Primitive specialization, {@link LinkLogic} - * - * @param self self reference - * @param arg a primitive to push - * @return array length after push - */ - @SpecializedFunction(name="push", linkLogic=PushLinkLogic.class) - public static double pushObject(final Object self, final Object arg) { - return getContinuousArrayDataCCE(self, Object.class).fastPush(arg); - } - - /** - * ECMA 15.4.4.7 Array.prototype.push (args...) - * - * @param self self reference - * @param args arguments to push - * @return array length after pushes - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static Object push(final Object self, final Object... args) { - try { - final ScriptObject sobj = (ScriptObject)self; - - if (bulkable(sobj) && sobj.getArray().length() + args.length <= JSType.MAX_UINT) { - final ArrayData newData = sobj.getArray().push(true, args); - sobj.setArray(newData); - return JSType.toNarrowestNumber(newData.length()); - } - - long len = JSType.toUint32(sobj.getLength()); - for (final Object element : args) { - sobj.set(len++, element, CALLSITE_STRICT); - } - sobj.set("length", len, CALLSITE_STRICT); - - return JSType.toNarrowestNumber(len); - } catch (final ClassCastException | NullPointerException e) { - throw typeError(Context.getGlobal(), e, "not.an.object", ScriptRuntime.safeToString(self)); - } - } - - /** - * ECMA 15.4.4.7 Array.prototype.push (args...) specialized for single object argument - * - * @param self self reference - * @param arg argument to push - * @return array after pushes - */ - @SpecializedFunction - public static double push(final Object self, final Object arg) { - try { - final ScriptObject sobj = (ScriptObject)self; - final ArrayData arrayData = sobj.getArray(); - final long length = arrayData.length(); - if (bulkable(sobj) && length < JSType.MAX_UINT) { - sobj.setArray(arrayData.push(true, arg)); - return length + 1; - } - - long len = JSType.toUint32(sobj.getLength()); - sobj.set(len++, arg, CALLSITE_STRICT); - sobj.set("length", len, CALLSITE_STRICT); - return len; - } catch (final ClassCastException | NullPointerException e) { - throw typeError("not.an.object", ScriptRuntime.safeToString(self)); - } - } - - /** - * ECMA 15.4.4.8 Array.prototype.reverse () - * - * @param self self reference - * @return reversed array - */ - @Function(attributes = Attribute.NOT_ENUMERABLE) - public static Object reverse(final Object self) { - try { - final ScriptObject sobj = (ScriptObject)self; - final long len = JSType.toUint32(sobj.getLength()); - final long middle = len / 2; - - for (long lower = 0; lower != middle; lower++) { - final long upper = len - lower - 1; - final Object lowerValue = sobj.get(lower); - final Object upperValue = sobj.get(upper); - final boolean lowerExists = sobj.has(lower); - final boolean upperExists = sobj.has(upper); - - if (lowerExists && upperExists) { - sobj.set(lower, upperValue, CALLSITE_STRICT); - sobj.set(upper, lowerValue, CALLSITE_STRICT); - } else if (!lowerExists && upperExists) { - sobj.set(lower, upperValue, CALLSITE_STRICT); - sobj.delete(upper, true); - } else if (lowerExists && !upperExists) { - sobj.delete(lower, true); - sobj.set(upper, lowerValue, CALLSITE_STRICT); - } - } - return sobj; - } catch (final ClassCastException | NullPointerException e) { - throw typeError("not.an.object", ScriptRuntime.safeToString(self)); - } - } - - /** - * ECMA 15.4.4.9 Array.prototype.shift () - * - * @param self self reference - * @return shifted array - */ - @Function(attributes = Attribute.NOT_ENUMERABLE) - public static Object shift(final Object self) { - final Object obj = Global.toObject(self); - - Object first = ScriptRuntime.UNDEFINED; - - if (!(obj instanceof ScriptObject)) { - return first; - } - - final ScriptObject sobj = (ScriptObject) obj; - - long len = JSType.toUint32(sobj.getLength()); - - if (len > 0) { - first = sobj.get(0); - - if (bulkable(sobj)) { - sobj.getArray().shiftLeft(1); - } else { - boolean hasPrevious = true; - for (long k = 1; k < len; k++) { - final boolean hasCurrent = sobj.has(k); - if (hasCurrent) { - sobj.set(k - 1, sobj.get(k), CALLSITE_STRICT); - } else if (hasPrevious) { - sobj.delete(k - 1, true); - } - hasPrevious = hasCurrent; - } - } - sobj.delete(--len, true); - } else { - len = 0; - } - - sobj.set("length", len, CALLSITE_STRICT); - - return first; - } - - /** - * ECMA 15.4.4.10 Array.prototype.slice ( start [ , end ] ) - * - * @param self self reference - * @param start start of slice (inclusive) - * @param end end of slice (optional, exclusive) - * @return sliced array - */ - @Function(attributes = Attribute.NOT_ENUMERABLE) - public static Object slice(final Object self, final Object start, final Object end) { - final Object obj = Global.toObject(self); - if (!(obj instanceof ScriptObject)) { - return ScriptRuntime.UNDEFINED; - } - - final ScriptObject sobj = (ScriptObject)obj; - final long len = JSType.toUint32(sobj.getLength()); - final long relativeStart = JSType.toLong(start); - final long relativeEnd = end == ScriptRuntime.UNDEFINED ? len : JSType.toLong(end); - - long k = relativeStart < 0 ? Math.max(len + relativeStart, 0) : Math.min(relativeStart, len); - final long finale = relativeEnd < 0 ? Math.max(len + relativeEnd, 0) : Math.min(relativeEnd, len); - - if (k >= finale) { - return new NativeArray(0); - } - - if (bulkable(sobj)) { - return new NativeArray(sobj.getArray().slice(k, finale)); - } - - // Construct array with proper length to have a deleted filter on undefined elements - final NativeArray copy = new NativeArray(finale - k); - for (long n = 0; k < finale; n++, k++) { - if (sobj.has(k)) { - copy.defineOwnProperty(ArrayIndex.getArrayIndex(n), sobj.get(k)); - } - } - - return copy; - } - - private static Object compareFunction(final Object comparefn) { - if (comparefn == ScriptRuntime.UNDEFINED) { - return null; - } - - if (!Bootstrap.isCallable(comparefn)) { - throw typeError("not.a.function", ScriptRuntime.safeToString(comparefn)); - } - - return comparefn; - } - - private static Object[] sort(final Object[] array, final Object comparefn) { - final Object cmp = compareFunction(comparefn); - - final List<Object> list = Arrays.asList(array); - final Object cmpThis = cmp == null || Bootstrap.isStrictCallable(cmp) ? ScriptRuntime.UNDEFINED : Global.instance(); - - try { - Collections.sort(list, new Comparator<Object>() { - private final MethodHandle call_cmp = getCALL_CMP(); - @Override - public int compare(final Object x, final Object y) { - if (x == ScriptRuntime.UNDEFINED && y == ScriptRuntime.UNDEFINED) { - return 0; - } else if (x == ScriptRuntime.UNDEFINED) { - return 1; - } else if (y == ScriptRuntime.UNDEFINED) { - return -1; - } - - if (cmp != null) { - try { - return (int)Math.signum((double)call_cmp.invokeExact(cmp, cmpThis, x, y)); - } catch (final RuntimeException | Error e) { - throw e; - } catch (final Throwable t) { - throw new RuntimeException(t); - } - } - - return JSType.toString(x).compareTo(JSType.toString(y)); - } - }); - } catch (final IllegalArgumentException iae) { - // Collections.sort throws IllegalArgumentException when - // Comparison method violates its general contract - - // See ECMA spec 15.4.4.11 Array.prototype.sort (comparefn). - // If "comparefn" is not undefined and is not a consistent - // comparison function for the elements of this array, the - // behaviour of sort is implementation-defined. - } - - return list.toArray(new Object[array.length]); - } - - /** - * ECMA 15.4.4.11 Array.prototype.sort ( comparefn ) - * - * @param self self reference - * @param comparefn element comparison function - * @return sorted array - */ - @Function(attributes = Attribute.NOT_ENUMERABLE) - public static ScriptObject sort(final Object self, final Object comparefn) { - try { - final ScriptObject sobj = (ScriptObject) self; - final long len = JSType.toUint32(sobj.getLength()); - ArrayData array = sobj.getArray(); - - if (len > 1) { - // Get only non-missing elements. Missing elements go at the end - // of the sorted array. So, just don't copy these to sort input. - final ArrayList<Object> src = new ArrayList<>(); - - for (final Iterator<Long> iter = array.indexIterator(); iter.hasNext(); ) { - final long index = iter.next(); - if (index >= len) { - break; - } - src.add(array.getObject((int)index)); - } - - final Object[] sorted = sort(src.toArray(), comparefn); - - for (int i = 0; i < sorted.length; i++) { - array = array.set(i, sorted[i], true); - } - - // delete missing elements - which are at the end of sorted array - if (sorted.length != len) { - array = array.delete(sorted.length, len - 1); - } - - sobj.setArray(array); - } - - return sobj; - } catch (final ClassCastException | NullPointerException e) { - throw typeError("not.an.object", ScriptRuntime.safeToString(self)); - } - } - - /** - * ECMA 15.4.4.12 Array.prototype.splice ( start, deleteCount [ item1 [ , item2 [ , ... ] ] ] ) - * - * @param self self reference - * @param args arguments - * @return result of splice - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 2) - public static Object splice(final Object self, final Object... args) { - final Object obj = Global.toObject(self); - - if (!(obj instanceof ScriptObject)) { - return ScriptRuntime.UNDEFINED; - } - - final Object start = args.length > 0 ? args[0] : ScriptRuntime.UNDEFINED; - final Object deleteCount = args.length > 1 ? args[1] : ScriptRuntime.UNDEFINED; - - Object[] items; - - if (args.length > 2) { - items = new Object[args.length - 2]; - System.arraycopy(args, 2, items, 0, items.length); - } else { - items = ScriptRuntime.EMPTY_ARRAY; - } - - final ScriptObject sobj = (ScriptObject)obj; - final long len = JSType.toUint32(sobj.getLength()); - final long relativeStart = JSType.toLong(start); - - final long actualStart = relativeStart < 0 ? Math.max(len + relativeStart, 0) : Math.min(relativeStart, len); - final long actualDeleteCount = Math.min(Math.max(JSType.toLong(deleteCount), 0), len - actualStart); - - NativeArray returnValue; - - if (actualStart <= Integer.MAX_VALUE && actualDeleteCount <= Integer.MAX_VALUE && bulkable(sobj)) { - try { - returnValue = new NativeArray(sobj.getArray().fastSplice((int)actualStart, (int)actualDeleteCount, items.length)); - - // Since this is a dense bulkable array we can use faster defineOwnProperty to copy new elements - int k = (int) actualStart; - for (int i = 0; i < items.length; i++, k++) { - sobj.defineOwnProperty(k, items[i]); - } - } catch (final UnsupportedOperationException uoe) { - returnValue = slowSplice(sobj, actualStart, actualDeleteCount, items, len); - } - } else { - returnValue = slowSplice(sobj, actualStart, actualDeleteCount, items, len); - } - - return returnValue; - } - - private static NativeArray slowSplice(final ScriptObject sobj, final long start, final long deleteCount, final Object[] items, final long len) { - - final NativeArray array = new NativeArray(deleteCount); - - for (long k = 0; k < deleteCount; k++) { - final long from = start + k; - - if (sobj.has(from)) { - array.defineOwnProperty(ArrayIndex.getArrayIndex(k), sobj.get(from)); - } - } - - if (items.length < deleteCount) { - for (long k = start; k < len - deleteCount; k++) { - final long from = k + deleteCount; - final long to = k + items.length; - - if (sobj.has(from)) { - sobj.set(to, sobj.get(from), CALLSITE_STRICT); - } else { - sobj.delete(to, true); - } - } - - for (long k = len; k > len - deleteCount + items.length; k--) { - sobj.delete(k - 1, true); - } - } else if (items.length > deleteCount) { - for (long k = len - deleteCount; k > start; k--) { - final long from = k + deleteCount - 1; - final long to = k + items.length - 1; - - if (sobj.has(from)) { - final Object fromValue = sobj.get(from); - sobj.set(to, fromValue, CALLSITE_STRICT); - } else { - sobj.delete(to, true); - } - } - } - - long k = start; - for (int i = 0; i < items.length; i++, k++) { - sobj.set(k, items[i], CALLSITE_STRICT); - } - - final long newLength = len - deleteCount + items.length; - sobj.set("length", newLength, CALLSITE_STRICT); - - return array; - } - - /** - * ECMA 15.4.4.13 Array.prototype.unshift ( [ item1 [ , item2 [ , ... ] ] ] ) - * - * @param self self reference - * @param items items for unshift - * @return unshifted array - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static Object unshift(final Object self, final Object... items) { - final Object obj = Global.toObject(self); - - if (!(obj instanceof ScriptObject)) { - return ScriptRuntime.UNDEFINED; - } - - final ScriptObject sobj = (ScriptObject)obj; - final long len = JSType.toUint32(sobj.getLength()); - - if (items == null) { - return ScriptRuntime.UNDEFINED; - } - - if (bulkable(sobj)) { - sobj.getArray().shiftRight(items.length); - - for (int j = 0; j < items.length; j++) { - sobj.setArray(sobj.getArray().set(j, items[j], true)); - } - } else { - for (long k = len; k > 0; k--) { - final long from = k - 1; - final long to = k + items.length - 1; - - if (sobj.has(from)) { - final Object fromValue = sobj.get(from); - sobj.set(to, fromValue, CALLSITE_STRICT); - } else { - sobj.delete(to, true); - } - } - - for (int j = 0; j < items.length; j++) { - sobj.set(j, items[j], CALLSITE_STRICT); - } - } - - final long newLength = len + items.length; - sobj.set("length", newLength, CALLSITE_STRICT); - - return JSType.toNarrowestNumber(newLength); - } - - /** - * ECMA 15.4.4.14 Array.prototype.indexOf ( searchElement [ , fromIndex ] ) - * - * @param self self reference - * @param searchElement element to search for - * @param fromIndex start index of search - * @return index of element, or -1 if not found - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static double indexOf(final Object self, final Object searchElement, final Object fromIndex) { - try { - final ScriptObject sobj = (ScriptObject)Global.toObject(self); - final long len = JSType.toUint32(sobj.getLength()); - if (len == 0) { - return -1; - } - - final long n = JSType.toLong(fromIndex); - if (n >= len) { - return -1; - } - - - for (long k = Math.max(0, n < 0 ? len - Math.abs(n) : n); k < len; k++) { - if (sobj.has(k)) { - if (ScriptRuntime.EQ_STRICT(sobj.get(k), searchElement)) { - return k; - } - } - } - } catch (final ClassCastException | NullPointerException e) { - //fallthru - } - - return -1; - } - - /** - * ECMA 15.4.4.15 Array.prototype.lastIndexOf ( searchElement [ , fromIndex ] ) - * - * @param self self reference - * @param args arguments: element to search for and optional from index - * @return index of element, or -1 if not found - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static double lastIndexOf(final Object self, final Object... args) { - try { - final ScriptObject sobj = (ScriptObject)Global.toObject(self); - final long len = JSType.toUint32(sobj.getLength()); - - if (len == 0) { - return -1; - } - - final Object searchElement = args.length > 0 ? args[0] : ScriptRuntime.UNDEFINED; - final long n = args.length > 1 ? JSType.toLong(args[1]) : len - 1; - - for (long k = n < 0 ? len - Math.abs(n) : Math.min(n, len - 1); k >= 0; k--) { - if (sobj.has(k)) { - if (ScriptRuntime.EQ_STRICT(sobj.get(k), searchElement)) { - return k; - } - } - } - } catch (final ClassCastException | NullPointerException e) { - throw typeError("not.an.object", ScriptRuntime.safeToString(self)); - } - - return -1; - } - - /** - * ECMA 15.4.4.16 Array.prototype.every ( callbackfn [ , thisArg ] ) - * - * @param self self reference - * @param callbackfn callback function per element - * @param thisArg this argument - * @return true if callback function return true for every element in the array, false otherwise - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static boolean every(final Object self, final Object callbackfn, final Object thisArg) { - return applyEvery(Global.toObject(self), callbackfn, thisArg); - } - - private static boolean applyEvery(final Object self, final Object callbackfn, final Object thisArg) { - return new IteratorAction<Boolean>(Global.toObject(self), callbackfn, thisArg, true) { - private final MethodHandle everyInvoker = getEVERY_CALLBACK_INVOKER(); - - @Override - protected boolean forEach(final Object val, final double i) throws Throwable { - return result = (boolean)everyInvoker.invokeExact(callbackfn, thisArg, val, i, self); - } - }.apply(); - } - - /** - * ECMA 15.4.4.17 Array.prototype.some ( callbackfn [ , thisArg ] ) - * - * @param self self reference - * @param callbackfn callback function per element - * @param thisArg this argument - * @return true if callback function returned true for any element in the array, false otherwise - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static boolean some(final Object self, final Object callbackfn, final Object thisArg) { - return new IteratorAction<Boolean>(Global.toObject(self), callbackfn, thisArg, false) { - private final MethodHandle someInvoker = getSOME_CALLBACK_INVOKER(); - - @Override - protected boolean forEach(final Object val, final double i) throws Throwable { - return !(result = (boolean)someInvoker.invokeExact(callbackfn, thisArg, val, i, self)); - } - }.apply(); - } - - /** - * ECMA 15.4.4.18 Array.prototype.forEach ( callbackfn [ , thisArg ] ) - * - * @param self self reference - * @param callbackfn callback function per element - * @param thisArg this argument - * @return undefined - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static Object forEach(final Object self, final Object callbackfn, final Object thisArg) { - return new IteratorAction<Object>(Global.toObject(self), callbackfn, thisArg, ScriptRuntime.UNDEFINED) { - private final MethodHandle forEachInvoker = getFOREACH_CALLBACK_INVOKER(); - - @Override - protected boolean forEach(final Object val, final double i) throws Throwable { - forEachInvoker.invokeExact(callbackfn, thisArg, val, i, self); - return true; - } - }.apply(); - } - - /** - * ECMA 15.4.4.19 Array.prototype.map ( callbackfn [ , thisArg ] ) - * - * @param self self reference - * @param callbackfn callback function per element - * @param thisArg this argument - * @return array with elements transformed by map function - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static NativeArray map(final Object self, final Object callbackfn, final Object thisArg) { - return new IteratorAction<NativeArray>(Global.toObject(self), callbackfn, thisArg, null) { - private final MethodHandle mapInvoker = getMAP_CALLBACK_INVOKER(); - - @Override - protected boolean forEach(final Object val, final double i) throws Throwable { - final Object r = mapInvoker.invokeExact(callbackfn, thisArg, val, i, self); - result.defineOwnProperty(ArrayIndex.getArrayIndex(index), r); - return true; - } - - @Override - public void applyLoopBegin(final ArrayLikeIterator<Object> iter0) { - // map return array should be of same length as source array - // even if callback reduces source array length - result = new NativeArray(iter0.getLength()); - } - }.apply(); - } - - /** - * ECMA 15.4.4.20 Array.prototype.filter ( callbackfn [ , thisArg ] ) - * - * @param self self reference - * @param callbackfn callback function per element - * @param thisArg this argument - * @return filtered array - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static NativeArray filter(final Object self, final Object callbackfn, final Object thisArg) { - return new IteratorAction<NativeArray>(Global.toObject(self), callbackfn, thisArg, new NativeArray()) { - private long to = 0; - private final MethodHandle filterInvoker = getFILTER_CALLBACK_INVOKER(); - - @Override - protected boolean forEach(final Object val, final double i) throws Throwable { - if ((boolean)filterInvoker.invokeExact(callbackfn, thisArg, val, i, self)) { - result.defineOwnProperty(ArrayIndex.getArrayIndex(to++), val); - } - return true; - } - }.apply(); - } - - private static Object reduceInner(final ArrayLikeIterator<Object> iter, final Object self, final Object... args) { - final Object callbackfn = args.length > 0 ? args[0] : ScriptRuntime.UNDEFINED; - final boolean initialValuePresent = args.length > 1; - - Object initialValue = initialValuePresent ? args[1] : ScriptRuntime.UNDEFINED; - - if (callbackfn == ScriptRuntime.UNDEFINED) { - throw typeError("not.a.function", "undefined"); - } - - if (!initialValuePresent) { - if (iter.hasNext()) { - initialValue = iter.next(); - } else { - throw typeError("array.reduce.invalid.init"); - } - } - - //if initial value is ScriptRuntime.UNDEFINED - step forward once. - return new IteratorAction<Object>(Global.toObject(self), callbackfn, ScriptRuntime.UNDEFINED, initialValue, iter) { - private final MethodHandle reduceInvoker = getREDUCE_CALLBACK_INVOKER(); - - @Override - protected boolean forEach(final Object val, final double i) throws Throwable { - // TODO: why can't I declare the second arg as Undefined.class? - result = reduceInvoker.invokeExact(callbackfn, ScriptRuntime.UNDEFINED, result, val, i, self); - return true; - } - }.apply(); - } - - /** - * ECMA 15.4.4.21 Array.prototype.reduce ( callbackfn [ , initialValue ] ) - * - * @param self self reference - * @param args arguments to reduce - * @return accumulated result - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static Object reduce(final Object self, final Object... args) { - return reduceInner(arrayLikeIterator(self), self, args); - } - - /** - * ECMA 15.4.4.22 Array.prototype.reduceRight ( callbackfn [ , initialValue ] ) - * - * @param self self reference - * @param args arguments to reduce - * @return accumulated result - */ - @Function(attributes = Attribute.NOT_ENUMERABLE, arity = 1) - public static Object reduceRight(final Object self, final Object... args) { - return reduceInner(reverseArrayLikeIterator(self), self, args); - } - - /** - * Determine if Java bulk array operations may be used on the underlying - * storage. This is possible only if the object's prototype chain is empty - * or each of the prototypes in the chain is empty. - * - * @param self the object to examine - * @return true if optimizable - */ - private static boolean bulkable(final ScriptObject self) { - return self.isArray() && !hasInheritedArrayEntries(self) && !self.isLengthNotWritable(); - } - - private static boolean hasInheritedArrayEntries(final ScriptObject self) { - ScriptObject proto = self.getProto(); - while (proto != null) { - if (proto.hasArrayEntries()) { - return true; - } - proto = proto.getProto(); - } - - return false; - } - - @Override - public String toString() { - return "NativeArray@" + Debug.id(this) + " [" + getArray().getClass().getSimpleName() + ']'; - } - - @Override - public SpecializedFunction.LinkLogic getLinkLogic(final Class<? extends LinkLogic> clazz) { - if (clazz == PushLinkLogic.class) { - return PushLinkLogic.INSTANCE; - } else if (clazz == PopLinkLogic.class) { - return PopLinkLogic.INSTANCE; - } else if (clazz == ConcatLinkLogic.class) { - return ConcatLinkLogic.INSTANCE; - } - return null; - } - - @Override - public boolean hasPerInstanceAssumptions() { - return true; //length writable switchpoint - } - - /** - * This is an abstract super class that contains common functionality for all - * specialized optimistic builtins in NativeArray. For example, it handles the - * modification switchpoint which is touched when length is written. - */ - private static abstract class ArrayLinkLogic extends SpecializedFunction.LinkLogic { - protected ArrayLinkLogic() { - } - - protected static ContinuousArrayData getContinuousArrayData(final Object self) { - try { - //cast to NativeArray, to avoid cases like x = {0:0, 1:1}, x.length = 2, where we can't use the array push/pop - return (ContinuousArrayData)((NativeArray)self).getArray(); - } catch (final Exception e) { - return null; - } - } - - /** - * Push and pop callsites can throw ClassCastException as a mechanism to have them - * relinked - this enabled fast checks of the kind of ((IntArrayData)arrayData).push(x) - * for an IntArrayData only push - if this fails, a CCE will be thrown and we will relink - */ - @Override - public Class<? extends Throwable> getRelinkException() { - return ClassCastException.class; - } - } - - /** - * This is linker logic for optimistic concatenations - */ - private static final class ConcatLinkLogic extends ArrayLinkLogic { - private static final LinkLogic INSTANCE = new ConcatLinkLogic(); - - @Override - public boolean canLink(final Object self, final CallSiteDescriptor desc, final LinkRequest request) { - final Object[] args = request.getArguments(); - - if (args.length != 3) { //single argument check - return false; - } - - final ContinuousArrayData selfData = getContinuousArrayData(self); - if (selfData == null) { - return false; - } - - final Object arg = args[2]; - //args[2] continuousarray or non arraydata, let past non array datas - if (arg instanceof NativeArray) { - final ContinuousArrayData argData = getContinuousArrayData(arg); - if (argData == null) { - return false; - } - } - - return true; - } - } - - /** - * This is linker logic for optimistic pushes - */ - private static final class PushLinkLogic extends ArrayLinkLogic { - private static final LinkLogic INSTANCE = new PushLinkLogic(); - - @Override - public boolean canLink(final Object self, final CallSiteDescriptor desc, final LinkRequest request) { - return getContinuousArrayData(self) != null; - } - } - - /** - * This is linker logic for optimistic pops - */ - private static final class PopLinkLogic extends ArrayLinkLogic { - private static final LinkLogic INSTANCE = new PopLinkLogic(); - - /** - * We need to check if we are dealing with a continuous non empty array data here, - * as pop with a primitive return value returns undefined for arrays with length 0 - */ - @Override - public boolean canLink(final Object self, final CallSiteDescriptor desc, final LinkRequest request) { - final ContinuousArrayData data = getContinuousNonEmptyArrayData(self); - if (data != null) { - final Class<?> elementType = data.getElementType(); - final Class<?> returnType = desc.getMethodType().returnType(); - final boolean typeFits = JSType.getAccessorTypeIndex(returnType) >= JSType.getAccessorTypeIndex(elementType); - return typeFits; - } - return false; - } - - private static ContinuousArrayData getContinuousNonEmptyArrayData(final Object self) { - final ContinuousArrayData data = getContinuousArrayData(self); - if (data != null) { - return data.length() == 0 ? null : data; - } - return null; - } - } - - //runtime calls for push and pops. they could be used as guards, but they also perform the runtime logic, - //so rather than synthesizing them into a guard method handle that would also perform the push on the - //retrieved receiver, we use this as runtime logic - - //TODO - fold these into the Link logics, but I'll do that as a later step, as I want to do a checkin - //where everything works first - - private static final <T> ContinuousArrayData getContinuousNonEmptyArrayDataCCE(final Object self, final Class<T> clazz) { - try { - @SuppressWarnings("unchecked") - final ContinuousArrayData data = (ContinuousArrayData)(T)((NativeArray)self).getArray(); - if (data.length() != 0L) { - return data; //if length is 0 we cannot pop and have to relink, because then we'd have to return an undefined, which is a wider type than e.g. int - } - } catch (final NullPointerException e) { - //fallthru - } - throw new ClassCastException(); - } - - private static final ContinuousArrayData getContinuousArrayDataCCE(final Object self) { - try { - return (ContinuousArrayData)((NativeArray)self).getArray(); - } catch (final NullPointerException e) { - throw new ClassCastException(); - } - } - - private static final ContinuousArrayData getContinuousArrayDataCCE(final Object self, final Class<?> elementType) { - try { - return (ContinuousArrayData)((NativeArray)self).getArray(elementType); //ensure element type can fit "elementType" - } catch (final NullPointerException e) { - throw new ClassCastException(); - } - } -} |