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      1 /***
      2  * ASM performance test: measures the performances of asm package
      3  * Copyright (c) 2002-2005 France Telecom
      4  * All rights reserved.
      5  *
      6  * Redistribution and use in source and binary forms, with or without
      7  * modification, are permitted provided that the following conditions
      8  * are met:
      9  * 1. Redistributions of source code must retain the above copyright
     10  *    notice, this list of conditions and the following disclaimer.
     11  * 2. Redistributions in binary form must reproduce the above copyright
     12  *    notice, this list of conditions and the following disclaimer in the
     13  *    documentation and/or other materials provided with the distribution.
     14  * 3. Neither the name of the copyright holders nor the names of its
     15  *    contributors may be used to endorse or promote products derived from
     16  *    this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
     19  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     21  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
     22  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     23  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     24  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     25  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     26  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     27  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     28  * THE POSSIBILITY OF SUCH DAMAGE.
     29  */
     30 package org.objectweb.asm;
     31 
     32 import serp.bytecode.BCClass;
     33 import serp.bytecode.BCMethod;
     34 import serp.bytecode.Code;
     35 import serp.bytecode.Project;
     36 
     37 import java.io.InputStream;
     38 
     39 /**
     40  * @author Eric Bruneton
     41  */
     42 public class SERPPerfTest extends ALLPerfTest {
     43 
     44     private static Project p = new Project();
     45 
     46     private static BCClass c;
     47 
     48     public static void main(final String args[]) throws Exception {
     49         System.out.println("SERP PERFORMANCES\n");
     50         new SERPPerfTest().perfs(args);
     51     }
     52 
     53     ALLPerfTest newInstance() {
     54         return new SERPPerfTest();
     55     }
     56 
     57     byte[] nullAdaptClass(final InputStream is, final String name)
     58             throws Exception
     59     {
     60         if (c != null) {
     61             p.removeClass(c);
     62         }
     63         c = p.loadClass(is);
     64         c.getDeclaredFields();
     65         BCMethod[] methods = c.getDeclaredMethods();
     66         for (int i = 0; i < methods.length; ++i) {
     67             Code code = methods[i].getCode(false);
     68             if (code != null) {
     69                 while (code.hasNext()) {
     70                     code.next();
     71                 }
     72                 if (compute) {
     73                     code.calculateMaxStack();
     74                     code.calculateMaxLocals();
     75                 }
     76             }
     77         }
     78         return c.toByteArray();
     79     }
     80 
     81     byte[] counterAdaptClass(final InputStream is, final String name)
     82             throws Exception
     83     {
     84         if (c != null) {
     85             p.removeClass(c);
     86         }
     87         c = p.loadClass(is);
     88         c.getDeclaredFields();
     89         if (!c.isInterface()) {
     90             c.declareField("_counter", "I");
     91         }
     92         BCMethod[] methods = c.getDeclaredMethods();
     93         for (int i = 0; i < methods.length; ++i) {
     94             BCMethod m = methods[i];
     95             if (!m.getName().equals("<init>") && !m.isStatic()
     96                     && !m.isAbstract() && !m.isNative())
     97             {
     98                 Code code = m.getCode(false);
     99                 if (code != null) {
    100                     code.aload().setLocal(0);
    101                     code.aload().setLocal(0);
    102                     code.getfield().setField(name, "_counter", "I");
    103                     code.constant().setValue(1);
    104                     code.iadd();
    105                     code.putfield().setField(name, "_counter", "I");
    106                     code.setMaxStack(Math.max(code.getMaxStack(), 2));
    107                 }
    108             }
    109         }
    110         return c.toByteArray();
    111     }
    112 }
    113