ftbsc.lll.utils

Class InsnListUtils

java.lang.Object

ftbsc.lll.utils.InsnListUtils

public class InsnListUtils
extends java.lang.Object

A collection of utilities for manipulating InsnLists.

Constructor Summary

Constructors

Constructor and Description
InsnListUtils()

Method Summary

Modifier and Type	Method and Description
static org.objectweb.asm.tree.InsnList	between(org.objectweb.asm.tree.AbstractInsnNode startNode, org.objectweb.asm.tree.AbstractInsnNode endNode) Creates a sublist with all the nodes between the given extremes.
static void	cut(org.objectweb.asm.tree.InsnList list, int amount, boolean reverse) Cut a number of nodes from the list.
static org.objectweb.asm.tree.InsnList	of(org.objectweb.asm.tree.AbstractInsnNode... nodes) Factory method that builds an InsnList with the given nodes.
static boolean	replace(org.objectweb.asm.tree.InsnList list, int opcode, org.objectweb.asm.tree.AbstractInsnNode newNode, int amount, boolean reverse) Replaces n occurrences of said opcode with the given node.
static void	replaceNode(org.objectweb.asm.tree.InsnList list, org.objectweb.asm.tree.AbstractInsnNode oldNode, org.objectweb.asm.tree.AbstractInsnNode newNode) Replaces a node with another one.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

InsnListUtils

public InsnListUtils()

Method Detail

of

public static org.objectweb.asm.tree.InsnList of(org.objectweb.asm.tree.AbstractInsnNode... nodes)

Factory method that builds an InsnList with the given nodes.

Parameters:

nodes - the nodes in question

Returns:

the resulting InsnList

between

public static org.objectweb.asm.tree.InsnList between(org.objectweb.asm.tree.AbstractInsnNode startNode,
                                                      org.objectweb.asm.tree.AbstractInsnNode endNode)

Creates a sublist with all the nodes between the given extremes.

Parameters:

startNode - the starting node of the pattern, must be non-null

endNode - the first node of the pattern, must be non-null

Returns:

the resulting InsnList

replaceNode

public static void replaceNode(org.objectweb.asm.tree.InsnList list,
                               org.objectweb.asm.tree.AbstractInsnNode oldNode,
                               org.objectweb.asm.tree.AbstractInsnNode newNode)

Replaces a node with another one. Mostly used internally.

Parameters:

list - the list to perform the operation on

oldNode - node to replace

newNode - new node

replace

public static boolean replace(org.objectweb.asm.tree.InsnList list,
                              int opcode,
                              org.objectweb.asm.tree.AbstractInsnNode newNode,
                              int amount,
                              boolean reverse)

Replaces n occurrences of said opcode with the given node.

Parameters:

list - the list to perform the operation on

opcode - the opcode to replace

newNode - the replacement node

reverse - whether the search should be done from the end

amount - how many occurrences to replace, set to 0 to replace all

Returns:

true if anything was changed, false otherwise

cut

public static void cut(org.objectweb.asm.tree.InsnList list,
                       int amount,
                       boolean reverse)

Cut a number of nodes from the list.

Parameters:

list - the list to perform the operation on

amount - how many nodes to cut

reverse - true if it should cut from the end, false otherwise