1 files changed, 0 insertions, 340 deletions
diff --git a/src/jdk/nashorn/internal/objects/NativeArguments.java b/src/jdk/nashorn/internal/objects/NativeArguments.java
deleted file mode 100644
index accfd039..00000000
--- a/src/jdk/nashorn/internal/objects/NativeArguments.java
+++ /dev/null
@@ -1,340 +0,0 @@
-/*
- * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
- * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
- *
- * This code is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 only, as
- * published by the Free Software Foundation.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * This code is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- * version 2 for more details (a copy is included in the LICENSE file that
- * accompanied this code).
- *
- * You should have received a copy of the GNU General Public License version
- * 2 along with this work; if not, write to the Free Software Foundation,
- * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
- *
- * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
- * or visit www.oracle.com if you need additional information or have any
- * questions.
- */
-
-package jdk.nashorn.internal.objects;
-
-import static jdk.nashorn.internal.lookup.Lookup.MH;
-import static jdk.nashorn.internal.runtime.ECMAErrors.typeError;
-import static jdk.nashorn.internal.runtime.ScriptRuntime.UNDEFINED;
-
-import java.lang.invoke.MethodHandle;
-import java.lang.invoke.MethodHandles;
-import java.util.ArrayList;
-import java.util.Arrays;
-import java.util.BitSet;
-import jdk.nashorn.internal.runtime.AccessorProperty;
-import jdk.nashorn.internal.runtime.JSType;
-import jdk.nashorn.internal.runtime.Property;
-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.arrays.ArrayData;
-import jdk.nashorn.internal.runtime.arrays.ArrayIndex;
-
-/**
- * ECMA 10.6 Arguments Object.
- *
- * Arguments object used for non-strict mode functions. For strict mode, we use
- * a different implementation (@see NativeStrictArguments). In non-strict mode,
- * named argument access and index argument access (arguments[i]) are linked.
- * Modifications reflect on each other access -- till arguments indexed element
- * is deleted. After delete, there is no link between named access and indexed
- * access for that deleted index alone.
- */
-public final class NativeArguments extends ScriptObject {
-
-    private static final MethodHandle G$LENGTH = findOwnMH("G$length", Object.class, Object.class);
-    private static final MethodHandle S$LENGTH = findOwnMH("S$length", void.class, Object.class, Object.class);
-    private static final MethodHandle G$CALLEE = findOwnMH("G$callee", Object.class, Object.class);
-    private static final MethodHandle S$CALLEE = findOwnMH("S$callee", void.class, Object.class, Object.class);
-
-    private static final PropertyMap map$;
-
-    static {
-        final ArrayList<Property> properties = new ArrayList<>(2);
-        properties.add(AccessorProperty.create("length", Property.NOT_ENUMERABLE, G$LENGTH, S$LENGTH));
-        properties.add(AccessorProperty.create("callee", Property.NOT_ENUMERABLE, G$CALLEE, S$CALLEE));
-        map$ = PropertyMap.newMap(properties);
-    }
-
-    static PropertyMap getInitialMap() {
-        return map$;
-    }
-
-    private Object length;
-    private Object callee;
-    private final int numMapped;
-    private final int numParams;
-
-    // These are lazily initialized when delete is invoked on a mapped arg or an unmapped argument is set.
-    private ArrayData unmappedArgs;
-    private BitSet deleted;
-
-    NativeArguments(final Object[] arguments, final Object callee, final int numParams, final ScriptObject proto, final PropertyMap map) {
-        super(proto, map);
-        setIsArguments();
-        setArray(ArrayData.allocate(arguments));
-        this.length = arguments.length;
-        this.callee = callee;
-        this.numMapped = Math.min(numParams, arguments.length);
-        this.numParams = numParams;
-    }
-
-    @Override
-    public String getClassName() {
-        return "Arguments";
-    }
-
-    /**
-     * getArgument is used for named argument access.
-     */
-    @Override
-    public Object getArgument(final int key) {
-        assert key >= 0 && key < numParams : "invalid argument index";
-        return isMapped(key) ? getArray().getObject(key) : getUnmappedArg(key);
-    }
-
-    /**
-     * setArgument is used for named argument set.
-     */
-    @Override
-    public void setArgument(final int key, final Object value) {
-        assert key >= 0 && key < numParams : "invalid argument index";
-        if (isMapped(key)) {
-            setArray(getArray().set(key, value, false));
-        } else {
-            setUnmappedArg(key, value);
-        }
-    }
-
-    @Override
-    public boolean delete(final int key, final boolean strict) {
-        final int index = ArrayIndex.getArrayIndex(key);
-        return isMapped(index) ? deleteMapped(index, strict) : super.delete(key, strict);
-    }
-
-    @Override
-    public boolean delete(final double key, final boolean strict) {
-        final int index = ArrayIndex.getArrayIndex(key);
-        return isMapped(index) ? deleteMapped(index, strict) : super.delete(key, strict);
-    }
-
-    @Override
-    public boolean delete(final Object key, final boolean strict) {
-        final Object primitiveKey = JSType.toPrimitive(key, String.class);
-        final int index = ArrayIndex.getArrayIndex(primitiveKey);
-        return isMapped(index) ? deleteMapped(index, strict) : super.delete(primitiveKey, strict);
-    }
-
-    /**
-     * ECMA 15.4.5.1 [[DefineOwnProperty]] ( P, Desc, Throw ) as specialized in
-     * ECMA 10.6 for Arguments object.
-     */
-    @Override
-    public boolean defineOwnProperty(final String key, final Object propertyDesc, final boolean reject) {
-        final int index = ArrayIndex.getArrayIndex(key);
-        if (index >= 0) {
-            final boolean isMapped = isMapped(index);
-            final Object oldValue = isMapped ? getArray().getObject(index) : null;
-
-            if (!super.defineOwnProperty(key, propertyDesc, false)) {
-                if (reject) {
-                    throw typeError("cant.redefine.property",  key, ScriptRuntime.safeToString(this));
-                }
-                return false;
-            }
-
-            if (isMapped) {
-                // When mapped argument is redefined, if new descriptor is accessor property
-                // or data-non-writable property, we have to "unmap" (unlink).
-                final PropertyDescriptor desc = toPropertyDescriptor(Global.instance(), propertyDesc);
-                if (desc.type() == PropertyDescriptor.ACCESSOR) {
-                    setDeleted(index, oldValue);
-                } else if (desc.has(PropertyDescriptor.WRITABLE) && !desc.isWritable()) {
-                    // delete and set value from new descriptor if it has one, otherwise use old value
-                    setDeleted(index, desc.has(PropertyDescriptor.VALUE) ? desc.getValue() : oldValue);
-                } else if (desc.has(PropertyDescriptor.VALUE)) {
-                    setArray(getArray().set(index, desc.getValue(), false));
-                }
-            }
-
-            return true;
-        }
-
-        return super.defineOwnProperty(key, propertyDesc, reject);
-    }
-
-    // Internals below this point
-
-    // We track deletions using a bit set (delete arguments[index])
-    private boolean isDeleted(final int index) {
-        return deleted != null && deleted.get(index);
-    }
-
-    private void setDeleted(final int index, final Object unmappedValue) {
-        if (deleted == null) {
-            deleted = new BitSet(numMapped);
-        }
-        deleted.set(index, true);
-        setUnmappedArg(index, unmappedValue);
-    }
-
-    private boolean deleteMapped(final int index, final boolean strict) {
-        final Object value = getArray().getObject(index);
-        final boolean success = super.delete(index, strict);
-        if (success) {
-            setDeleted(index, value);
-        }
-        return success;
-    }
-
-    private Object getUnmappedArg(final int key) {
-        assert key >= 0 && key < numParams;
-        return unmappedArgs == null ? UNDEFINED : unmappedArgs.getObject(key);
-    }
-
-    private void setUnmappedArg(final int key, final Object value) {
-        assert key >= 0 && key < numParams;
-        if (unmappedArgs == null) {
-            /*
-             * Declared number of parameters may be more or less than the actual passed
-             * runtime arguments count. We need to truncate or extend with undefined values.
-             *
-             * Example:
-             *
-             * // less declared params
-             * (function (x) { print(arguments); })(20, 44);
-             *
-             * // more declared params
-             * (function (x, y) { print(arguments); })(3);
-             */
-            final Object[] newValues = new Object[numParams];
-            System.arraycopy(getArray().asObjectArray(), 0, newValues, 0, numMapped);
-            if (numMapped < numParams) {
-                Arrays.fill(newValues, numMapped, numParams, UNDEFINED);
-            }
-            this.unmappedArgs = ArrayData.allocate(newValues);
-        }
-        // Set value of argument
-        unmappedArgs = unmappedArgs.set(key, value, false);
-    }
-
-    /**
-     * Are arguments[index] and corresponding named parameter linked?
-     *
-     * In non-strict mode, arguments[index] and corresponding named param are "linked" or "mapped"
-     * if the argument is provided by the caller. Modifications are tacked b/w each other - until
-     * (delete arguments[index]) is used. Once deleted, the corresponding arg is no longer 'mapped'.
-     * Please note that delete can happen only through the arguments array - named param can not
-     * be deleted. (delete is one-way).
-     */
-    private boolean isMapped(final int index) {
-        // in mapped named args and not marked as "deleted"
-        return index >= 0 && index < numMapped && !isDeleted(index);
-    }
-
-    /**
-     * Factory to create correct Arguments object based on strict mode.
-     *
-     * @param arguments the actual arguments array passed
-     * @param callee the callee function that uses arguments object
-     * @param numParams the number of declared (named) function parameters
-     * @return Arguments Object
-     */
-    public static ScriptObject allocate(final Object[] arguments, final ScriptFunction callee, final int numParams) {
-        // Strict functions won't always have a callee for arguments, and will pass null instead.
-        final boolean isStrict = callee == null || callee.isStrict();
-        final Global global = Global.instance();
-        final ScriptObject proto = global.getObjectPrototype();
-        if (isStrict) {
-            return new NativeStrictArguments(arguments, numParams, proto, NativeStrictArguments.getInitialMap());
-        }
-        return new NativeArguments(arguments, callee, numParams, proto, NativeArguments.getInitialMap());
-    }
-
-    /**
-     * Length getter
-     * @param self self reference
-     * @return length property value
-     */
-    public static Object G$length(final Object self) {
-        if (self instanceof NativeArguments) {
-            return ((NativeArguments)self).getArgumentsLength();
-        }
-
-        return 0;
-    }
-
-    /**
-     * Length setter
-     * @param self self reference
-     * @param value value for length property
-     */
-    public static void S$length(final Object self, final Object value) {
-        if (self instanceof NativeArguments) {
-            ((NativeArguments)self).setArgumentsLength(value);
-        }
-    }
-
-    /**
-     * Callee getter
-     * @param self self reference
-     * @return value for callee property
-     */
-    public static Object G$callee(final Object self) {
-        if (self instanceof NativeArguments) {
-            return ((NativeArguments)self).getCallee();
-        }
-        return UNDEFINED;
-    }
-
-    /**
-     * Callee setter
-     * @param self self reference
-     * @param value value for callee property
-     */
-    public static void S$callee(final Object self, final Object value) {
-        if (self instanceof NativeArguments) {
-            ((NativeArguments)self).setCallee(value);
-        }
-    }
-
-    @Override
-    public Object getLength() {
-        return length;
-    }
-
-    private Object getArgumentsLength() {
-        return length;
-    }
-
-    private void setArgumentsLength(final Object length) {
-        this.length = length;
-    }
-
-    private Object getCallee() {
-        return callee;
-    }
-
-    private void setCallee(final Object callee) {
-        this.callee = callee;
-    }
-
-    private static MethodHandle findOwnMH(final String name, final Class<?> rtype, final Class<?>... types) {
-        return MH.findStatic(MethodHandles.lookup(), NativeArguments.class, name, MH.type(rtype, types));
-    }
-}