Mercurial > hg > truffle
view graal/GraalCompiler/src/com/sun/c1x/debug/IdealGraphPrinterObserver.java @ 2691:4149feada801
GraphvizPrinterObserver: close output stream also in case of exception
author | Peter Hofer <peter.hofer@jku.at> |
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date | Wed, 18 May 2011 11:27:10 +0200 |
parents | ed36daed4c43 |
children | 79590d6b4a7c |
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/* * Copyright (c) 2011, 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.sun.c1x.debug; import java.io.*; import com.oracle.graal.graph.*; import com.sun.c1x.*; import com.sun.c1x.observer.*; import com.sun.c1x.value.*; /** * Observes compilation events and uses {@link IdealGraphPrinter} to generate a graph representation that can be * inspected with the <a href="http://kenai.com/projects/igv">Ideal Graph Visualizer</a>. * * @author Peter Hofer */ public class IdealGraphPrinterObserver implements CompilationObserver { private IdealGraphPrinter printer; private OutputStream stream; @Override public void compilationStarted(CompilationEvent event) { assert (stream == null && printer == null); if (!TTY.isSuppressed()) { String name = event.getMethod().holder().name(); name = name.substring(1, name.length() - 1).replace('/', '.'); name = name + "." + event.getMethod().name(); String filename = name + ".igv.xml"; try { stream = new FileOutputStream(filename); printer = new IdealGraphPrinter(stream); if (C1XOptions.OmitDOTFrameStates) { printer.addOmittedClass(FrameState.class); } printer.begin(name, name, -1); } catch (IOException e) { e.printStackTrace(); } } } @Override public void compilationEvent(CompilationEvent event) { if (printer != null && event.getStartBlock() != null) { Graph graph = event.getStartBlock().graph(); printer.print(graph, event.getLabel(), true); } } @Override public void compilationFinished(CompilationEvent event) { if (printer != null) { try { printer.end(); stream.close(); } catch (IOException e) { e.printStackTrace(); } finally { printer = null; stream = null; } } } }