org.apache.commons.nabla.algorithmic.forward.trimming
Class SwappedDloadTrimmer

java.lang.Object
  org.apache.commons.nabla.algorithmic.forward.trimming.BytecodeTrimmer
      org.apache.commons.nabla.algorithmic.forward.trimming.SwappedDloadTrimmer

public class SwappedDloadTrimmer
extends BytecodeTrimmer

Trimmer replacing (DLOAD i, DLOAD j, DUP2_X2, POP2) with (DLOAD j, DLOAD i).

Method Summary

static BytecodeTrimmer	getInstance() Get the singleton instance.
protected boolean	trimWindow(org.objectweb.asm.tree.InsnList instructions, org.objectweb.asm.tree.AbstractInsnNode[] window) Trim the current window of lookahead instructions.

Methods inherited from class org.apache.commons.nabla.algorithmic.forward.trimming.BytecodeTrimmer

trim

Methods inherited from class java.lang.Object

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

Method Detail

getInstance

public static BytecodeTrimmer getInstance()

Get the singleton instance.

We use here the Initialization on Demand Holder idiom.

Returns:

the singleton instance

trimWindow

protected boolean trimWindow(org.objectweb.asm.tree.InsnList instructions,
                             org.objectweb.asm.tree.AbstractInsnNode[] window)

Trim the current window of lookahead instructions.

Specified by:

trimWindow in class BytecodeTrimmer

Parameters:

instructions - complete instructions list of instructions to trim

window - current instructions window (belongs to the list)

Returns:

true if instructions and window have been updated and are ready for next iteration