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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.ConstantVisitor;
/**
* This Constant represents a method handle constant in the constant pool.
*
* @author Eric Lafortune
*/
public class MethodHandleConstant extends Constant
{
public int u1referenceKind;
public int u2referenceIndex;
/**
* An extra field pointing to the java.lang.invoke.MethodHandle Clazz object.
* This field is typically filled out by the <code>{@link
* proguard.classfile.util.ClassReferenceInitializer
* ClassReferenceInitializer}</code>.
*/
public Clazz javaLangInvokeMethodHandleClass;
/**
* Creates an uninitialized MethodHandleConstant.
*/
public MethodHandleConstant()
{
}
/**
* Creates a new MethodHandleConstant with the given type and method ref
* index.
* @param u1referenceKind the reference kind.
* @param u2referenceIndex the index of the field ref constant, interface
* method ref constant, or method ref constant in
* the constant pool.
*/
public MethodHandleConstant(int u1referenceKind, int u2referenceIndex)
{
this.u1referenceKind = u1referenceKind;
this.u2referenceIndex = u2referenceIndex;
}
/**
* Returns the kind of reference to which this constant is pointing.
* @return One of
* {@link ClassConstants#REF_getField },
* {@link ClassConstants#REF_getStatic },
* {@link ClassConstants#REF_putField },
* {@link ClassConstants#REF_putStatic },
* {@link ClassConstants#REF_invokeVirtual },
* {@link ClassConstants#REF_invokeStatic },
* {@link ClassConstants#REF_invokeSpecial },
* {@link ClassConstants#REF_newInvokeSpecial}, or
* {@link ClassConstants#REF_invokeInterface }.
*/
public int getReferenceKind()
{
return u1referenceKind;
}
/**
* Returns the field ref, interface method ref, or method ref index.
*/
public int getReferenceIndex()
{
return u2referenceIndex;
}
/**
* Returns the class name.
*/
public String getClassName(Clazz clazz)
{
return clazz.getRefClassName(u2referenceIndex);
}
/**
* Returns the method/field name.
*/
public String getName(Clazz clazz)
{
return clazz.getRefName(u2referenceIndex);
}
/**
* Returns the type.
*/
public String getType(Clazz clazz)
{
return clazz.getRefType(u2referenceIndex);
}
// Implementations for Constant.
public int getTag()
{
return ClassConstants.CONSTANT_MethodHandle;
}
public void accept(Clazz clazz, ConstantVisitor constantVisitor)
{
constantVisitor.visitMethodHandleConstant(clazz, this);
}
}
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