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/*
* ProGuard -- shrinking, optimization, obfuscation, and preverification
* of Java bytecode.
*
* Copyright (c) 2002-2014 Eric Lafortune (eric@graphics.cornell.edu)
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package proguard.classfile.editor;
import proguard.classfile.*;
import proguard.classfile.attribute.*;
import proguard.classfile.attribute.visitor.BootstrapMethodInfoVisitor;
/**
* This BootstrapMethodInfoVisitor adds all bootstrap methods that it visits to
* the given target bootstrap methods attribute.
*/
public class BootstrapMethodInfoAdder
implements BootstrapMethodInfoVisitor
{
private final ConstantAdder constantAdder;
private final BootstrapMethodsAttributeEditor bootstrapMethodsAttributeEditor;
private int bootstrapMethodIndex;
/**
* Creates a new BootstrapMethodInfoAdder that will copy bootstrap methods
* into the given bootstrap methods attribute.
*/
public BootstrapMethodInfoAdder(ProgramClass targetClass,
BootstrapMethodsAttribute targetBootstrapMethodsAttribute)
{
this.constantAdder = new ConstantAdder(targetClass);
this.bootstrapMethodsAttributeEditor = new BootstrapMethodsAttributeEditor(targetBootstrapMethodsAttribute);
}
/**
* Returns the index of the most recently added bootstrap method.
*/
public int getBootstrapMethodIndex()
{
return bootstrapMethodIndex;
}
// Implementations for BootstrapMethodInfoVisitor.
public void visitBootstrapMethodInfo(Clazz clazz, BootstrapMethodInfo bootstrapMethodInfo)
{
// Copy the method arguments.
int methodArgumentCount = bootstrapMethodInfo.u2methodArgumentCount;
int[] methodArguments = bootstrapMethodInfo.u2methodArguments;
int[] newMethodArguments = new int[methodArgumentCount];
for (int index = 0; index < methodArgumentCount; index++)
{
newMethodArguments[index] =
constantAdder.addConstant(clazz, methodArguments[index]);
}
// Create a new bootstrap method.
BootstrapMethodInfo newBootstrapMethodInfo =
new BootstrapMethodInfo(constantAdder.addConstant(clazz, bootstrapMethodInfo.u2methodHandleIndex),
methodArgumentCount,
newMethodArguments);
// Add it to the target.
bootstrapMethodIndex =
bootstrapMethodsAttributeEditor.addBootstrapMethodInfo(newBootstrapMethodInfo);
}
}
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