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/*******************************************************************************
* Copyright (c) 2015 Jeff Martin.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the GNU Lesser General Public
* License v3.0 which accompanies this distribution, and is available at
* http://www.gnu.org/licenses/lgpl.html
*
* Contributors:
* Jeff Martin - initial API and implementation
******************************************************************************/
package cuchaz.enigma.bytecode.accessors;
import java.lang.reflect.Field;
public class MethodHandleInfoAccessor {
private static Class<?> m_class;
private static Field m_kindIndex;
private static Field m_indexIndex;
static {
try {
m_class = Class.forName("javassist.bytecode.MethodHandleInfo");
m_kindIndex = m_class.getDeclaredField("refKind");
m_kindIndex.setAccessible(true);
m_indexIndex = m_class.getDeclaredField("refIndex");
m_indexIndex.setAccessible(true);
} catch (Exception ex) {
throw new Error(ex);
}
}
public static boolean isType(ConstInfoAccessor accessor) {
return m_class.isAssignableFrom(accessor.getItem().getClass());
}
private Object m_item;
public MethodHandleInfoAccessor(Object item) {
m_item = item;
}
public int getTypeIndex() {
try {
return (Integer)m_kindIndex.get(m_item);
} catch (Exception ex) {
throw new Error(ex);
}
}
public void setTypeIndex(int val) {
try {
m_kindIndex.set(m_item, val);
} catch (Exception ex) {
throw new Error(ex);
}
}
public int getMethodRefIndex() {
try {
return (Integer)m_indexIndex.get(m_item);
} catch (Exception ex) {
throw new Error(ex);
}
}
public void setMethodRefIndex(int val) {
try {
m_indexIndex.set(m_item, val);
} catch (Exception ex) {
throw new Error(ex);
}
}
}
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