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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.constant;
import proguard.classfile.*;
import proguard.classfile.constant.visitor.*;
import proguard.classfile.visitor.ClassVisitor;
/**
* This Constant represents an invoke dynamic constant in the constant pool.
*
* @author Eric Lafortune
*/
public class InvokeDynamicConstant extends Constant
{
public int u2bootstrapMethodAttributeIndex;
public int u2nameAndTypeIndex;
/**
* An extra field pointing to the Clazz objects referenced in the
* descriptor string. This field is filled out by the <code>{@link
* proguard.classfile.util.ClassReferenceInitializer ClassReferenceInitializer}</code>.
* References to primitive types are ignored.
*/
public Clazz[] referencedClasses;
/**
* Creates an uninitialized InvokeDynamicConstant.
*/
public InvokeDynamicConstant()
{
}
/**
* Creates a new InvokeDynamicConstant with the given bootstrap method
* and name-and-type indices.
* @param u2bootstrapMethodAttributeIndex the index of the bootstrap method
* entry in the bootstrap methods
* attribute.
* @param u2nameAndTypeIndex the index of the name and type
* entry in the constant pool.
* @param referencedClasses the classes referenced by the
* type.
*/
public InvokeDynamicConstant(int u2bootstrapMethodAttributeIndex,
int u2nameAndTypeIndex,
Clazz[] referencedClasses)
{
this.u2bootstrapMethodAttributeIndex = u2bootstrapMethodAttributeIndex;
this.u2nameAndTypeIndex = u2nameAndTypeIndex;
this.referencedClasses = referencedClasses;
}
/**
* Returns the index of the bootstrap method in the bootstrap methods
* attribute of the class.
*/
public int getBootstrapMethodAttributeIndex()
{
return u2bootstrapMethodAttributeIndex;
}
/**
* Returns the name-and-type index.
*/
public int getNameAndTypeIndex()
{
return u2nameAndTypeIndex;
}
/**
* Returns the method name.
*/
public String getName(Clazz clazz)
{
return clazz.getName(u2nameAndTypeIndex);
}
/**
* Returns the method type.
*/
public String getType(Clazz clazz)
{
return clazz.getType(u2nameAndTypeIndex);
}
/**
* Lets the Clazz objects referenced in the descriptor string
* accept the given visitor.
*/
public void referencedClassesAccept(ClassVisitor classVisitor)
{
if (referencedClasses != null)
{
for (int index = 0; index < referencedClasses.length; index++)
{
if (referencedClasses[index] != null)
{
referencedClasses[index].accept(classVisitor);
}
}
}
}
/**
* Lets the bootstrap method handle constant accept the given visitor.
*/
public void bootstrapMethodHandleAccept(Clazz clazz, ConstantVisitor constantVisitor)
{
new BootstrapMethodHandleTraveler(constantVisitor).visitInvokeDynamicConstant(clazz, this);
}
// Implementations for Constant.
public int getTag()
{
return ClassConstants.CONSTANT_InvokeDynamic;
}
public void accept(Clazz clazz, ConstantVisitor constantVisitor)
{
constantVisitor.visitInvokeDynamicConstant(clazz, this);
}
}
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