jaroslav@1812: /**
jaroslav@1812:  * Back 2 Browser Bytecode Translator
jaroslav@1812:  * Copyright (C) 2012-2015 Jaroslav Tulach <jaroslav.tulach@apidesign.org>
jaroslav@1812:  *
jaroslav@1812:  * This program is free software: you can redistribute it and/or modify
jaroslav@1812:  * it under the terms of the GNU General Public License as published by
jaroslav@1812:  * the Free Software Foundation, version 2 of the License.
jaroslav@1812:  *
jaroslav@1812:  * This program is distributed in the hope that it will be useful,
jaroslav@1812:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
jaroslav@1812:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
jaroslav@1812:  * GNU General Public License for more details.
jaroslav@1812:  *
jaroslav@1812:  * You should have received a copy of the GNU General Public License
jaroslav@1812:  * along with this program. Look for COPYING file in the top folder.
jaroslav@1812:  * If not, see http://opensource.org/licenses/GPL-2.0.
jaroslav@1812:  */
jaroslav@1812: package org.apidesign.bck2brwsr.flow;
jaroslav@1812: 
jaroslav@1842: import java.io.IOException;
jaroslav@1812: import org.apidesign.vm4brwsr.Bck2Brwsr;
jaroslav@1812: 
jaroslav@1812: /** Poweful flow analyzer. Based on internals used by Graal JVM
jaroslav@1812:  * compiler.
jaroslav@1812:  *
jaroslav@1812:  * @author Jaroslav Tulach
jaroslav@1812:  */
jaroslav@1812: public final class GraalFlowAnalyzer {
jaroslav@1812:     private GraalFlowAnalyzer() {
jaroslav@1812:     }
jaroslav@1812:     
jaroslav@1812:     public static Bck2Brwsr.Flow.Analyzer getDefault() {
jaroslav@1812:         return Impl.DEFAULT;
jaroslav@1812:     }
jaroslav@1812: 
jaroslav@1812:     private static class Impl implements Bck2Brwsr.Flow.Analyzer {
jaroslav@1812:         static Impl DEFAULT = new Impl();
jaroslav@1812:         
jaroslav@1812:         private Impl() {
jaroslav@1812:         }
jaroslav@1812: 
jaroslav@1812:         @Override
jaroslav@1842:         public boolean analyze(final Bck2Brwsr.Flow result) throws IOException {
jaroslav@1842:             // Use Graal to generate optimal function, David.
jaroslav@1841:             double x = com.oracle.graal.api.directives.GraalDirectives.FASTPATH_PROBABILITY;
jaroslav@1842:             result.emit("function() { return 922869; }");
jaroslav@1842:             return true;
jaroslav@1812:         }
jaroslav@1812:     }
jaroslav@1812: }