Package soot.dexpler

Class DexNullThrowTransformer

java.lang.Object

soot.Transformer

soot.BodyTransformer

soot.dexpler.DexNullThrowTransformer

public class DexNullThrowTransformer
extends BodyTransformer

Some Android applications throw null references, e.g., a = null; throw a; This will make unit graph construction fail as no targets of the throw statement can be found. We therefore replace such statements with direct NullPointerExceptions which would happen at runtime anyway.

Author:

Steven Arzt

Constructor Summary

Constructors

Constructor	Description
DexNullThrowTransformer()

Method Summary

Modifier and Type	Method	Description
protected void	internalTransform(Body b, String phaseName, Map<String,String> options)	This method is called to perform the transformation itself.
static DexNullThrowTransformer	v()

Methods inherited from class soot.BodyTransformer

transform, transform, transform

Methods inherited from class java.lang.Object

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

Constructor Detail

DexNullThrowTransformer

public DexNullThrowTransformer()

Method Detail

v

public static DexNullThrowTransformer v()

internalTransform

protected void internalTransform(Body b,
                                 String phaseName,
                                 Map<String,String> options)

Description copied from class: BodyTransformer

This method is called to perform the transformation itself. It is declared abstract; subclasses must implement this method by making it the entry point to their actual Body transformation.

Specified by:

internalTransform in class BodyTransformer

Parameters:

b - the body on which to apply the transformation

phaseName - the phasename for this transform; not typically used by implementations.

options - the actual computed options; a combination of default options and Scene specified options.