Package com.pnfsoftware.jeb.core.units.code.java

Class AbstractJStatementOptimizer

java.lang.Object

com.pnfsoftware.jeb.core.AbstractPlugin

com.pnfsoftware.jeb.core.units.code.java.AbstractJOptimizer

com.pnfsoftware.jeb.core.units.code.java.AbstractJStatementOptimizer

All Implemented Interfaces:

IPlugin, IJOptimizer

public abstract class AbstractJStatementOptimizer
extends AbstractJOptimizer

A specialized skeleton implementation for a method AST optimizer meant to run on every statement of AST code of the method, recursively. This optimizer may be used to optimize AST methods only, not AST classes.

Refer to the javadoc of the parent types for more information.

Field Summary

Fields inherited from class com.pnfsoftware.jeb.core.units.code.java.AbstractJOptimizer

c, cf, decomp, dex, drcollector, jctx, logger, m, of, tf

Constructor Summary

Constructors

Constructor	Description
AbstractJStatementOptimizer()	Create a standard optimizer.
AbstractJStatementOptimizer(JOptimizerType type)	Create an optimizer.
AbstractJStatementOptimizer(JOptimizerType type, String name)	Create an optimizer.

Method Summary

Modifier and Type	Method	Description
abstract int	optimizeStatement(IJavaStatement stm)	Optimize an AST statement.
int	perform()	The default implementation calls performInternal(IJavaBlock) on the input AST method, if the element to be optimized is a method.
protected int	performInternal(IJavaBlock b)	The default implementation calls optimizeStatement(IJavaStatement) on all statements of the AST method to be optimized.

Methods inherited from class com.pnfsoftware.jeb.core.units.code.java.AbstractJOptimizer

getName, getPluginInformation, getPriority, getType, isEnabled, perform, setEnabled, setName, setPriority, setType

Methods inherited from class com.pnfsoftware.jeb.core.AbstractPlugin

dispose, getData, setData

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.pnfsoftware.jeb.core.IPlugin

dispose, getData, setData

Constructor Details

AbstractJStatementOptimizer

public AbstractJStatementOptimizer()

Create a standard optimizer.

AbstractJStatementOptimizer

public AbstractJStatementOptimizer(JOptimizerType type)

Create an optimizer.

Parameters:

type -

AbstractJStatementOptimizer

public AbstractJStatementOptimizer(JOptimizerType type,
 String name)

Create an optimizer.

Parameters:

type -

name -

Method Details

perform

public int perform()

The default implementation calls performInternal(IJavaBlock) on the input AST method, if the element to be optimized is a method.

It may be overridden, although it is not recommended.

Specified by:

perform in class AbstractJOptimizer

Returns:

the number of optimizations performed, 0 if none

performInternal

protected int performInternal(IJavaBlock b)

The default implementation calls optimizeStatement(IJavaStatement) on all statements of the AST method to be optimized. The method tree is visited in depth, statements are optimized pre-visit.

It may be overridden, although it is not recommended.

Parameters:

b -

Returns:

number of optimizations performed

optimizeStatement

public abstract int optimizeStatement(IJavaStatement stm)

Optimize an AST statement. Optimizers must implement this method.

Parameters:

stm - statement to be optimized

Returns:

number of optimizations performed