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/***
* ASM performance test: measures the performances of asm package
* Copyright (c) 2002-2005 France Telecom
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
package org.objectweb.asm;
import org.objectweb.asm.ClassAdapter;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.MethodAdapter;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import java.io.InputStream;
/**
* @author Eric Bruneton
*/
public class ASMPerfTest extends ALLPerfTest {
final static Integer ONE = new Integer(1);
public static void main(final String args[]) throws Exception {
System.out.println("ASM PERFORMANCES\n");
new ASMPerfTest().perfs(args);
}
ALLPerfTest newInstance() {
return new ASMPerfTest();
}
byte[] nullAdaptClass(final InputStream is, final String name)
throws Exception
{
ClassReader cr = new ClassReader(is);
ClassWriter cw = new ClassWriter(compute);
ClassAdapter ca = new ClassAdapter(cw);
cr.accept(ca, skipDebug);
return cw.toByteArray();
}
byte[] counterAdaptClass(final InputStream is, final String name)
throws Exception
{
ClassReader cr = new ClassReader(is);
ClassWriter cw = new ClassWriter(false);
ClassAdapter ca = new CounterClassAdapter(cw);
cr.accept(ca, false);
return cw.toByteArray();
}
static class CounterClassAdapter extends ClassAdapter implements Opcodes {
private String owner;
CounterClassAdapter(ClassVisitor cv) {
super(cv);
}
public void visit(
int version,
int access,
String name,
String signature,
String superName,
String[] interfaces)
{
super.visit(version, access, name, signature, superName, interfaces);
if ((access & ACC_INTERFACE) == 0) {
cv.visitField(ACC_PUBLIC, "_counter", "I", null, null);
}
owner = name;
}
public MethodVisitor visitMethod(
int access,
String name,
String desc,
String signature,
String[] exceptions)
{
MethodVisitor mv = super.visitMethod(access,
name,
desc,
signature,
exceptions);
if (!name.equals("<init>")
&& (access & (ACC_STATIC | ACC_NATIVE | ACC_ABSTRACT)) == 0)
{
return new CounterMethodAdapter(mv, owner);
}
return mv;
}
}
static class CounterMethodAdapter extends MethodAdapter implements Opcodes {
CounterMethodAdapter(MethodVisitor mv, String owner) {
super(mv);
mv.visitVarInsn(ALOAD, 0);
mv.visitVarInsn(ALOAD, 0);
mv.visitFieldInsn(GETFIELD, owner, "_counter", "I");
mv.visitLdcInsn(ONE);
mv.visitInsn(IADD);
mv.visitFieldInsn(PUTFIELD, owner, "_counter", "I");
}
public void visitMaxs(int maxStack, int maxLocals) {
super.visitMaxs(Math.max(maxStack, 2), maxLocals);
}
}
}
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