BeforeFieldAccess.java
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/*
* This file is part of LiteLoader.
* Copyright (C) 2012-16 Adam Mummery-Smith
* All Rights Reserved.
*/
package com.mumfrey.liteloader.transformers.event.inject;
import org.spongepowered.asm.lib.tree.AbstractInsnNode;
import org.spongepowered.asm.lib.tree.FieldInsnNode;
import com.mumfrey.liteloader.core.runtime.Obf;
import com.mumfrey.liteloader.transformers.event.MethodInfo;
/**
* An injection point which searches for GETFIELD and SETFIELD opcodes matching
* its arguments and returns a list of insns immediately prior to matching
* instructions. Only the field name is required, owners and signatures are
* optional and can be used to disambiguate between fields of the same name but
* with different types, or belonging to different classes.
*
* @author Adam Mummery-Smith
*/
public class BeforeFieldAccess extends BeforeInvoke
{
private final int opcode;
public BeforeFieldAccess(int opcode, String... fieldNames)
{
super(fieldNames);
this.opcode = opcode;
}
public BeforeFieldAccess(int opcode, String fieldName, int ordinal)
{
super(fieldName, ordinal);
this.opcode = opcode;
}
public BeforeFieldAccess(int opcode, String[] fieldNames, int ordinal)
{
super(fieldNames, ordinal);
this.opcode = opcode;
}
public BeforeFieldAccess(int opcode, String[] fieldNames, String[] fieldOwners)
{
super(fieldNames, fieldOwners);
this.opcode = opcode;
}
public BeforeFieldAccess(int opcode, String[] fieldNames, String[] fieldOwners, int ordinal)
{
super(fieldNames, fieldOwners, ordinal);
this.opcode = opcode;
}
public BeforeFieldAccess(int opcode, String[] fieldNames, String[] fieldOwners, String[] fieldSignatures)
{
super(fieldNames, fieldOwners, fieldSignatures);
this.opcode = opcode;
}
public BeforeFieldAccess(int opcode, String[] fieldNames, String[] fieldOwners, String[] fieldSignatures, int ordinal)
{
super(fieldNames, fieldOwners, fieldSignatures, ordinal);
this.opcode = opcode;
}
public BeforeFieldAccess(int opcode, Obf fieldNames, int ordinal)
{
super(fieldNames.names, ordinal);
this.opcode = opcode;
}
public BeforeFieldAccess(int opcode, Obf fieldNames, Obf fieldOwners)
{
super(fieldNames.names, fieldOwners.names);
this.opcode = opcode;
}
public BeforeFieldAccess(int opcode, Obf fieldNames, Obf fieldOwners, int ordinal)
{
super(fieldNames.names, fieldOwners.names, ordinal);
this.opcode = opcode;
}
public BeforeFieldAccess(int opcode, MethodInfo fieldInfo)
{
super(fieldInfo);
this.opcode = opcode;
}
public BeforeFieldAccess(int opcode, MethodInfo fieldInfo, int ordinal)
{
super(fieldInfo, ordinal);
this.opcode = opcode;
}
@Override
protected boolean matchesInsn(AbstractInsnNode insn)
{
return insn instanceof FieldInsnNode && ((FieldInsnNode)insn).getOpcode() == this.opcode;
}
}