Mercurial > hg > graal-jvmci-8
diff graal/com.oracle.truffle.object/src/com/oracle/truffle/object/Debug.java @ 18408:2c3666f44855
Truffle: initial commit of object API implementation
author | Andreas Woess <andreas.woess@jku.at> |
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date | Tue, 18 Nov 2014 23:19:43 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/graal/com.oracle.truffle.object/src/com/oracle/truffle/object/Debug.java Tue Nov 18 23:19:43 2014 +0100 @@ -0,0 +1,67 @@ +/* + * Copyright (c) 2014, 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. + * + * 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 com.oracle.truffle.object; + +import java.io.*; +import java.util.*; +import java.util.concurrent.*; + +import com.oracle.truffle.object.debug.*; + +class Debug { + private static Collection<ShapeImpl> allShapes; + + static void registerShape(ShapeImpl newShape) { + allShapes.add(newShape); + } + + static { + if (ObjectStorageOptions.DumpShapes) { + allShapes = new ConcurrentLinkedQueue<>(); + } + + if (ObjectStorageOptions.DumpShapes) { + Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() { + public void run() { + try (PrintWriter out = new PrintWriter("shapes.json", "UTF-8")) { + out.println("{\"shapes\": ["); + boolean first = true; + for (ShapeImpl shape : allShapes) { + if (!first) { + out.println(","); + } + first = false; + out.print(shape.accept(new JSONShapeVisitor())); + } + if (!first) { + out.println(); + } + out.println("]}"); + } catch (FileNotFoundException | UnsupportedEncodingException e) { + throw new RuntimeException(e); + } + } + })); + } + } +}