proguard.dexfile.reader

Class DexFileReader

java.lang.Object

proguard.dexfile.reader.DexFileReader

public class DexFileReader
extends java.lang.Object

Open and read a dex file.this is the entrance of dex-reader. to read a dex/odex, use the following code:

 DexFileVisitor visitor = new xxxFileVisitor();
 DexFileReader reader = new DexFileReader(dexFile);
 reader.accept(visitor);
 

Field Summary

Fields

Modifier and Type	Field and Description
static int	IGNORE_READ_EXCEPTION ingore read exception
static int	KEEP_ALL_METHODS read all methods, even if they are glitch
static int	KEEP_CLINIT keep clinit method when SKIP_DEBUG
static int	SKIP_ANNOTATION skip annotation info in dex file.
static int	SKIP_CODE skip code info in dex file, this indicate SKIP_DEBUG
static int	SKIP_DEBUG skip debug infos in dex file.
static int	SKIP_EXCEPTION keep clinit method when SKIP_DEBUG
static int	SKIP_FIELD_CONSTANT skip field constant in dex file.

Constructor Summary

Constructors

Constructor and Description
DexFileReader(byte[] data)
DexFileReader(java.nio.ByteBuffer in) read dex from a ByteBuffer.
DexFileReader(java.io.File file)
DexFileReader(java.io.InputStream is)
DexFileReader(java.nio.file.Path file)

Method Summary

Modifier and Type	Method and Description
void	accept(DexFileVisitor dv) equals to accept(DexFileVisitor, int) with 0 as config
void	accept(DexFileVisitor dv, int config) Makes the given visitor visit the dex file.
void	accept(DexFileVisitor dv, int classIdx, int config) Makes the given visitor visit the dex file.
java.util.List<java.lang.String>	getClassNames()
int	getClassSize() the size of class in dex file
int	getDexVersion()
java.lang.Boolean	ignoreClass(java.lang.String className)
static void	niceExceptionMessage(java.lang.Throwable t, int deep)
static int	readLeb128i(java.nio.ByteBuffer in)
static int	readULeb128i(java.nio.ByteBuffer in)

Methods inherited from class java.lang.Object

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

Field Detail

SKIP_DEBUG

public static final int SKIP_DEBUG

skip debug infos in dex file.

See Also:

Constant Field Values

SKIP_CODE

public static final int SKIP_CODE

skip code info in dex file, this indicate SKIP_DEBUG

See Also:

Constant Field Values

SKIP_ANNOTATION

public static final int SKIP_ANNOTATION

skip annotation info in dex file.

See Also:

Constant Field Values

SKIP_FIELD_CONSTANT

public static final int SKIP_FIELD_CONSTANT

skip field constant in dex file.

See Also:

Constant Field Values

IGNORE_READ_EXCEPTION

public static final int IGNORE_READ_EXCEPTION

ingore read exception

See Also:

Constant Field Values

KEEP_ALL_METHODS

public static final int KEEP_ALL_METHODS

read all methods, even if they are glitch

See Also:

Constant Field Values

KEEP_CLINIT

public static final int KEEP_CLINIT

keep clinit method when SKIP_DEBUG

See Also:

Constant Field Values

SKIP_EXCEPTION

public static final int SKIP_EXCEPTION

keep clinit method when SKIP_DEBUG

See Also:

Constant Field Values

Constructor Detail

DexFileReader

public DexFileReader(java.nio.ByteBuffer in)

read dex from a ByteBuffer.

Parameters:

in -

DexFileReader

public DexFileReader(byte[] data)

Parameters:

data - the byte array of dex

DexFileReader

public DexFileReader(java.io.File file)
              throws java.io.IOException

Parameters:

file - the dex file

Throws:

java.io.IOException

DexFileReader

public DexFileReader(java.nio.file.Path file)
              throws java.io.IOException

Throws:

java.io.IOException

DexFileReader

public DexFileReader(java.io.InputStream is)
              throws java.io.IOException

Throws:

java.io.IOException

Method Detail

niceExceptionMessage

public static void niceExceptionMessage(java.lang.Throwable t,
                                        int deep)

readULeb128i

public static int readULeb128i(java.nio.ByteBuffer in)

readLeb128i

public static int readLeb128i(java.nio.ByteBuffer in)

getDexVersion

public int getDexVersion()

accept

public void accept(DexFileVisitor dv)

equals to accept(DexFileVisitor, int) with 0 as config

Parameters:

dv -

getClassNames

public java.util.List<java.lang.String> getClassNames()

accept

public void accept(DexFileVisitor dv,
                   int config)

Makes the given visitor visit the dex file.

Parameters:

dv - visitor

config - config flags, SKIP_CODE, SKIP_DEBUG, SKIP_ANNOTATION, SKIP_FIELD_CONSTANT

accept

public void accept(DexFileVisitor dv,
                   int classIdx,
                   int config)

Makes the given visitor visit the dex file. Notice the DexFileVisitor.visitEnd() is not called

Parameters:

dv - visitor

classIdx - index of class_def

config - config flags, SKIP_CODE, SKIP_DEBUG, SKIP_ANNOTATION, SKIP_FIELD_CONSTANT

ignoreClass

public java.lang.Boolean ignoreClass(java.lang.String className)

getClassSize

public final int getClassSize()

the size of class in dex file

Returns:

class_defs_size