/***
* ASM performance test: measures the performances of asm package
* Copyright (c) 2002,2003 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.test.perf;
import org.objectweb.asm.ClassAdapter;
import org.objectweb.asm.ClassReader;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.ClassWriter;
import org.objectweb.asm.CodeAdapter;
import org.objectweb.asm.CodeVisitor;
import org.objectweb.asm.Constants;
import org.objectweb.asm.Attribute;
import java.io.InputStream;
/**
* @author Eric Bruneton
*/
public class ASM extends ALL {
public static void main (final String args[]) throws Exception {
System.out.println("ASM PERFORMANCES\n");
new ASM().perfs(args);
}
ALL newInstance () {
return new ASM();
}
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 Constants {
private String owner;
CounterClassAdapter (ClassVisitor cv) {
super(cv);
}
public void visit (
int version,
int access,
String name,
String superName,
String[] interfaces,
String sourceFile)
{
super.visit(version, access, name, superName, interfaces, sourceFile);
if ((access & ACC_INTERFACE) == 0) {
cv.visitField(ACC_PUBLIC, "_counter", "I", null, null);
}
owner = name;
}
public CodeVisitor visitMethod (
int access,
String name,
String desc,
String[] exceptions,
Attribute attrs)
{
CodeVisitor cv = super.visitMethod(access, name, desc, exceptions, attrs);
if (!name.equals("<init>") &&
(access & (ACC_STATIC + ACC_NATIVE + ACC_ABSTRACT)) == 0)
{
cv.visitVarInsn(ALOAD, 0);
cv.visitVarInsn(ALOAD, 0);
cv.visitFieldInsn(GETFIELD, owner, "_counter", "I");
cv.visitInsn(ICONST_1);
cv.visitInsn(IADD);
cv.visitFieldInsn(PUTFIELD, owner, "_counter", "I");
return new CounterCodeAdapter(cv);
}
return cv;
}
}
static class CounterCodeAdapter extends CodeAdapter {
CounterCodeAdapter (CodeVisitor cv) {
super(cv);
}
public void visitMaxs (int maxStack, int maxLocals) {
super.visitMaxs(Math.max(maxStack, 2), maxLocals);
}
}
}