| /* |
| * 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.runtime.ScriptRuntime.UNDEFINED; |
| |
| import java.io.PrintWriter; |
| import java.util.Objects; |
| import jdk.nashorn.internal.objects.annotations.Attribute; |
| import jdk.nashorn.internal.objects.annotations.Function; |
| import jdk.nashorn.internal.objects.annotations.ScriptClass; |
| import jdk.nashorn.internal.objects.annotations.Where; |
| import jdk.nashorn.internal.runtime.Context; |
| import jdk.nashorn.internal.runtime.PropertyListenerManager; |
| import jdk.nashorn.internal.runtime.PropertyMap; |
| import jdk.nashorn.internal.runtime.ScriptFunction; |
| import jdk.nashorn.internal.runtime.ScriptObject; |
| import jdk.nashorn.internal.runtime.linker.LinkerCallSite; |
| |
| /** |
| * Nashorn specific debug utils. This is meant for Nashorn developers. |
| * The interface is subject to change without notice!! |
| * |
| */ |
| @ScriptClass("Debug") |
| public final class NativeDebug extends ScriptObject { |
| NativeDebug() { |
| this.setProto(Global.objectPrototype()); |
| } |
| |
| @Override |
| public String getClassName() { |
| return "Debug"; |
| } |
| |
| /** |
| * Nashorn extension: get context, context utility |
| * |
| * @param self self reference |
| * @return context |
| */ |
| @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
| public static Object getContext(final Object self) { |
| final SecurityManager sm = System.getSecurityManager(); |
| if (sm != null) { |
| sm.checkPermission(new RuntimePermission("nashorn.getContext")); |
| } |
| return Global.getThisContext(); |
| } |
| |
| /** |
| * Nashorn extension: get map from {@link ScriptObject} |
| * |
| * @param self self reference |
| * @param obj script object |
| * @return the map for the current ScriptObject |
| */ |
| @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
| public static Object map(final Object self, final Object obj) { |
| if (obj instanceof ScriptObject) { |
| return ((ScriptObject)obj).getMap(); |
| } |
| return UNDEFINED; |
| } |
| |
| /** |
| * Nashorn extension: get embed0 from {@link ScriptObject} |
| * |
| * @param self self reference |
| * @param obj script object |
| * @return the embed0 property value for the given ScriptObject |
| */ |
| @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
| public static Object embed0(final Object self, final Object obj) { |
| if (obj instanceof ScriptObject) { |
| return ((ScriptObject)obj).embed0; |
| } |
| return UNDEFINED; |
| } |
| |
| /** |
| * Nashorn extension: get embed1 from {@link ScriptObject} |
| * |
| * @param self self reference |
| * @param obj script object |
| * @return the embed1 property value for the given ScriptObject |
| */ |
| @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
| public static Object embed1(final Object self, final Object obj) { |
| if (obj instanceof ScriptObject) { |
| return ((ScriptObject)obj).embed1; |
| } |
| return UNDEFINED; |
| } |
| |
| /** |
| * Nashorn extension: get embed2 from {@link ScriptObject} |
| * |
| * @param self self reference |
| * @param obj script object |
| * @return the embed2 property value for the given ScriptObject |
| */ |
| @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
| public static Object embed2(final Object self, final Object obj) { |
| if (obj instanceof ScriptObject) { |
| return ((ScriptObject)obj).embed2; |
| } |
| return UNDEFINED; |
| } |
| |
| /** |
| * Nashorn extension: get embed3 from {@link ScriptObject} |
| * |
| * @param self self reference |
| * @param obj script object |
| * @return the embed3 property value for the given ScriptObject |
| */ |
| @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
| public static Object embed3(final Object self, final Object obj) { |
| if (obj instanceof ScriptObject) { |
| return ((ScriptObject)obj).embed3; |
| } |
| return UNDEFINED; |
| } |
| |
| /** |
| * Nashorn extension: get spill vector from {@link ScriptObject} |
| * |
| * @param self self reference |
| * @param obj script object |
| * @return the spill vector for the given ScriptObject |
| */ |
| @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
| public static Object spill(final Object self, final Object obj) { |
| if (obj instanceof ScriptObject) { |
| return ((ScriptObject)obj).spill; |
| } |
| return UNDEFINED; |
| } |
| |
| /** |
| * Check object identity comparison regardless of type |
| * |
| * @param self self reference |
| * @param obj1 first object in comparison |
| * @param obj2 second object in comparison |
| * @return true if reference identity |
| */ |
| @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
| public static Object identical(final Object self, final Object obj1, final Object obj2) { |
| return obj1 == obj2; |
| } |
| |
| /** |
| * Object util - getClass |
| * |
| * @param self self reference |
| * @param obj object |
| * @return class of {@code obj} |
| */ |
| @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
| public static Object getClass(final Object self, final Object obj) { |
| if (obj != null) { |
| return obj.getClass(); |
| } |
| return UNDEFINED; |
| } |
| |
| /** |
| * Object util - equals |
| * |
| * @param self self reference |
| * @param obj1 first object in comparison |
| * @param obj2 second object in comparison |
| * @return return {@link Object#equals(Object)} for objects. |
| */ |
| @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
| public static Object equals(final Object self, final Object obj1, final Object obj2) { |
| return (obj1 != null) ? obj1.equals(obj2) : false; |
| } |
| |
| /** |
| * Object util - toJavaString |
| * |
| * @param self self reference |
| * @param obj object to represent as a string |
| * @return Java string representation of {@code obj} |
| */ |
| @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
| public static Object toJavaString(final Object self, final Object obj) { |
| return Objects.toString(obj); |
| } |
| |
| /** |
| * Do not call overridden toString -- use default toString impl |
| * |
| * @param self self reference |
| * @param obj object to represent as a string |
| * @return string representation |
| */ |
| @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
| public static Object toIdentString(final Object self, final Object obj) { |
| if (obj == null) { |
| return "null"; |
| } |
| |
| final int hash = System.identityHashCode(obj); |
| return obj.getClass() + "@" + Integer.toHexString(hash); |
| } |
| |
| /** |
| * Dump all Nashorn debug mode counters. Calling this may be better if |
| * you want to print all counters. This way you can avoid too many callsites |
| * due to counter access itself!! |
| * @param self self reference |
| * @return undefined |
| */ |
| @SuppressWarnings("resource") |
| @Function(attributes = Attribute.NOT_ENUMERABLE, where = Where.CONSTRUCTOR) |
| public static Object dumpCounters(final Object self) { |
| final PrintWriter out = Context.getCurrentErr(); |
| |
| out.println("ScriptObject count " + ScriptObject.getCount()); |
| out.println("Scope count " + ScriptObject.getScopeCount()); |
| out.println("ScriptObject listeners added " + PropertyListenerManager.getListenersAdded()); |
| out.println("ScriptObject listeners removed " + PropertyListenerManager.getListenersRemoved()); |
| out.println("ScriptFunction count " + ScriptObject.getCount()); |
| out.println("ScriptFunction invokes " + ScriptFunction.getInvokes()); |
| out.println("ScriptFunction allocations " + ScriptFunction.getAllocations()); |
| out.println("PropertyMap count " + PropertyMap.getCount()); |
| out.println("PropertyMap cloned " + PropertyMap.getClonedCount()); |
| out.println("PropertyMap history hit " + PropertyMap.getHistoryHit()); |
| out.println("PropertyMap proto invalidations " + PropertyMap.getProtoInvalidations()); |
| out.println("PropertyMap proto history hit " + PropertyMap.getProtoHistoryHit()); |
| out.println("PropertyMap setProtoNewMapCount " + PropertyMap.getSetProtoNewMapCount()); |
| out.println("Callsite count " + LinkerCallSite.getCount()); |
| out.println("Callsite misses " + LinkerCallSite.getMissCount()); |
| out.println("Callsite misses by site at " + LinkerCallSite.getMissSamplingPercentage() + "%"); |
| |
| LinkerCallSite.getMissCounts(out); |
| |
| return UNDEFINED; |
| } |
| } |