soot.dexpler

Class AbstractNullTransformer

java.lang.Object

soot.Transformer

soot.BodyTransformer

soot.dexpler.DexTransformer

soot.dexpler.AbstractNullTransformer

Direct Known Subclasses:

DexIfTransformer, DexNullTransformer

public abstract class AbstractNullTransformer
extends DexTransformer

Abstract base class for DexNullTransformer and DexIfTransformer.

Author:

Steven Arzt

Constructor Summary

Constructors

Constructor and Description
AbstractNullTransformer()

Method Summary

Modifier and Type	Method and Description
protected static boolean	isObject(Type t)
protected boolean	isZeroComparison(ConditionExpr expr) Examine expr if it is a comparison with 0.
protected void	replaceWithNull(Unit u) Replace 0 with null in the given unit.

Methods inherited from class soot.dexpler.DexTransformer

collectDefinitionsWithAliases, findArrayType

Methods inherited from class soot.BodyTransformer

internalTransform, transform, transform, transform

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractNullTransformer

public AbstractNullTransformer()

Method Detail

isZeroComparison

protected boolean isZeroComparison(ConditionExpr expr)

Examine expr if it is a comparison with 0.

Parameters:

expr - the ConditionExpr to examine

replaceWithNull

protected void replaceWithNull(Unit u)

Replace 0 with null in the given unit.

Parameters:

u - the unit where 0 will be replaced with null.

isObject

protected static boolean isObject(Type t)