BeforeNew.java
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package com.mumfrey.liteloader.transformers.event.inject;
import java.util.Collection;
import java.util.ListIterator;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.tree.AbstractInsnNode;
import org.objectweb.asm.tree.InsnList;
import org.objectweb.asm.tree.TypeInsnNode;
import com.mumfrey.liteloader.core.runtime.Obf;
import com.mumfrey.liteloader.transformers.event.Event;
import com.mumfrey.liteloader.transformers.event.InjectionPoint;
public class BeforeNew extends InjectionPoint
{
private final String[] classNames;
private final int ordinal;
public BeforeNew(Obf className)
{
this(-1, className.names);
}
public BeforeNew(String... classNames)
{
this(-1, classNames);
}
public BeforeNew(int ordinal, Obf className)
{
this(ordinal, className.names);
}
public BeforeNew(int ordinal, String... classNames)
{
this.ordinal = Math.max(-1, ordinal);
this.classNames = classNames;
for (int i = 0; i < this.classNames.length; i++)
{
this.classNames[i] = this.classNames[i].replace('.', '/');
}
}
@Override
public boolean find(String desc, InsnList insns, Collection<AbstractInsnNode> nodes, Event event)
{
boolean found = false;
int ordinal = 0;
ListIterator<AbstractInsnNode> iter = insns.iterator();
while (iter.hasNext())
{
AbstractInsnNode insn = iter.next();
if (insn instanceof TypeInsnNode && insn.getOpcode() == Opcodes.NEW && this.matchesOwner((TypeInsnNode)insn))
{
if (this.ordinal == -1 || this.ordinal == ordinal)
{
nodes.add(insn);
found = true;
}
ordinal++;
}
}
return found;
}
private boolean matchesOwner(TypeInsnNode insn)
{
for (String className : this.classNames)
{
if (className.equals(insn.desc)) return true;
}
return false;
}
}