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annotate truffle/com.oracle.truffle.object/src/com/oracle/truffle/object/Debug.java @ 22157:dc83cc1f94f2

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Using fully qualified imports
author Jaroslav Tulach <jaroslav.tulach@oracle.com>
date Wed, 16 Sep 2015 11:33:22 +0200
parents 9c8c0937da41
children 364bab1763c9
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1 /*
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2 * Copyright (c) 2014, 2014, Oracle and/or its affiliates. All rights reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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20 * or visit www.oracle.com if you need additional information or have any
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21 * questions.
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22 */
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23 package com.oracle.truffle.object;
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24
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25 import com.oracle.truffle.object.debug.JSONShapeVisitor;
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26 import java.io.FileNotFoundException;
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27 import java.io.PrintWriter;
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28 import java.io.UnsupportedEncodingException;
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29 import java.util.Collection;
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30 import java.util.concurrent.ConcurrentLinkedQueue;
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31
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32 class Debug {
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33 private static Collection<ShapeImpl> allShapes;
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34
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35 static void registerShape(ShapeImpl newShape) {
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36 allShapes.add(newShape);
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37 }
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38
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39 static {
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40 if (ObjectStorageOptions.DumpShapes) {
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41 allShapes = new ConcurrentLinkedQueue<>();
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42 }
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43
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44 if (ObjectStorageOptions.DumpShapes) {
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45 Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
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46 public void run() {
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47 try (PrintWriter out = new PrintWriter("shapes.json", "UTF-8")) {
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48 out.println("{\"shapes\": [");
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49 boolean first = true;
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50 for (ShapeImpl shape : allShapes) {
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51 if (!first) {
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52 out.println(",");
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53 }
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54 first = false;
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55 out.print(shape.accept(new JSONShapeVisitor()));
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56 }
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57 if (!first) {
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58 out.println();
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59 }
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60 out.println("]}");
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61 } catch (FileNotFoundException | UnsupportedEncodingException e) {
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62 throw new RuntimeException(e);
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63 }
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64 }
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65 }));
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66 }
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67 }
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68 }