| /* |
| * 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.runtime.events; |
| |
| import java.util.logging.Level; |
| import jdk.nashorn.internal.runtime.Context; |
| import jdk.nashorn.internal.runtime.RecompilableScriptFunctionData; |
| import jdk.nashorn.internal.runtime.RewriteException; |
| |
| /** |
| * Subclass of runtime event for {@link RewriteException}. In order not |
| * to leak memory, RewriteExceptions get their return value destroyed |
| * and nulled out during recompilation. If we are running with event |
| * logging enabled, we need to retain the returnValue, hence the extra |
| * field |
| */ |
| public final class RecompilationEvent extends RuntimeEvent<RewriteException> { |
| |
| private final Object returnValue; |
| |
| /** |
| * Constructor |
| * |
| * @param level logging level |
| * @param rewriteException rewriteException wrapped by this RuntimEvent |
| * @param returnValue rewriteException return value - as we don't want to make |
| * {@code RewriteException.getReturnValueNonDestructive()} public, we pass it as |
| * an extra parameter, rather than querying the getter from another package. |
| */ |
| public RecompilationEvent(final Level level, final RewriteException rewriteException, final Object returnValue) { |
| super(level, rewriteException); |
| assert Context.getContext().getLogger(RecompilableScriptFunctionData.class).isEnabled() : |
| "Unit test/instrumentation purpose only: RecompilationEvent instances should not be created without '--log=recompile', or we will leak memory in the general case"; |
| this.returnValue = returnValue; |
| } |
| |
| /** |
| * Get the preserved return value for the RewriteException |
| * @return return value |
| */ |
| public Object getReturnValue() { |
| return returnValue; |
| } |
| } |