1 /*
   2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 package compiler.jvmci.common;
  25 
  26 import jdk.vm.ci.code.CompilationRequest;
  27 import jdk.vm.ci.code.CompilationRequestResult;
  28 import jdk.vm.ci.hotspot.services.HotSpotVMEventListener;
  29 import jdk.vm.ci.runtime.JVMCICompiler;
  30 import jdk.vm.ci.runtime.JVMCIRuntime;
  31 import jdk.vm.ci.runtime.services.JVMCICompilerFactory;
  32 
  33 /*
  34  * A stub classes to be able to use jvmci
  35  */
  36 public class JVMCIHelpers {
  37 
  38     public static class EmptyVMEventListener extends HotSpotVMEventListener {
  39         // just empty, using default interface methods
  40     }
  41 
  42     public static class EmptyCompilationRequestResult implements CompilationRequestResult {
  43         @Override
  44         public Object getFailure() {
  45             return "no compiler configured";
  46         }
  47     }
  48     public static class EmptyHotspotCompiler implements JVMCICompiler {
  49 
  50         @Override
  51         public CompilationRequestResult compileMethod(CompilationRequest request) {
  52             // do nothing
  53             return new EmptyCompilationRequestResult();
  54         }
  55     }
  56 
  57     public static class EmptyCompilerFactory extends JVMCICompilerFactory {
  58 
  59         @Override
  60         public String getCompilerName() {
  61             return "EmptyCompiler";
  62         }
  63 
  64         @Override
  65         public JVMCICompiler createCompiler(JVMCIRuntime runtime) {
  66             return new EmptyHotspotCompiler();
  67         }
  68     }
  69 }