jminusminus

Class CLFile

java.lang.Object

jminusminus.CLFile

 class CLFile
extends Object

Representation of the ClassFile structure (JVM Spec Section 4.2). An instance of CLFile is created when a class is read using CLAbsorber or constructed using CLEmitter. We have our own representation and don't use java.lang.Class because Java does not offer an interface to programmatically create a class file in memory other than creating it in one shot from a byte stream.

Field Summary

Fields

Modifier and Type	Field and Description
int	accessFlags ClassFile.access_flags item.
ArrayList<CLAttributeInfo>	attributes ClassFile.attributes item.
int	attributesCount ClassFile.attributes_count item.
CLConstantPool	constantPool ClassFile.constant_pool item.
int	constantPoolCount ClassFile.constant_pool_count item.
ArrayList<CLFieldInfo>	fields ClassFile.fields item.
int	fieldsCount ClassFile.fields_count item.
ArrayList<Integer>	interfaces ClassFile.interfaces item.
int	interfacesCount ClassFile.interfaces_count item.
long	magic ClassFile.magic item.
int	majorVersion ClassFile.major_version item.
ArrayList<CLMethodInfo>	methods ClassFile.methods item.
int	methodsCount ClassFile.methods_count item.
int	minorVersion ClassFile.minor_version item.
int	superClass ClassFile.super_class item.
int	thisClass ClassFile.this_class item.

Constructor Summary

Constructors

Constructor and Description
CLFile()

Method Summary

Methods

Modifier and Type	Method and Description
static int	accessFlagToInt(String accessFlag) Return the integer value (mask) corresponding to the specified access flag.
static String	classAccessFlagsToString(int accessFlags) Return (as a string) the class access permissions and properties contained in the specified mask of flags.
static String	fieldAccessFlagsToString(int accessFlags) Return (as a string) the field access permissions and properties contained in the specified mask of flags.
static String	innerClassAccessFlagsToString(int accessFlags) Return (as a string) the inner class access permissions and properties contained in the specified mask of flags.
static String	methodAccessFlagsToString(int accessFlags) Return (as a string) the method access permissions and properties contained in the specified mask of flags.
void	write(CLOutputStream out) Write the contents of this class to the specified output stream.
void	writeToStdOut() Write the contents of the class file to STDOUT in a format similar to that of javap.

Methods inherited from class java.lang.Object

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

Field Detail

magic

public long magic

ClassFile.magic item.

minorVersion

public int minorVersion

ClassFile.minor_version item.

majorVersion

public int majorVersion

ClassFile.major_version item.

constantPoolCount

public int constantPoolCount

ClassFile.constant_pool_count item.

constantPool

public CLConstantPool constantPool

ClassFile.constant_pool item.

accessFlags

public int accessFlags

ClassFile.access_flags item.

thisClass

public int thisClass

ClassFile.this_class item.

superClass

public int superClass

ClassFile.super_class item.

interfacesCount

public int interfacesCount

ClassFile.interfaces_count item.

interfaces

public ArrayList<Integer> interfaces

ClassFile.interfaces item.

fieldsCount

public int fieldsCount

ClassFile.fields_count item.

fields

public ArrayList<CLFieldInfo> fields

ClassFile.fields item.

methodsCount

public int methodsCount

ClassFile.methods_count item.

methods

public ArrayList<CLMethodInfo> methods

ClassFile.methods item.

attributesCount

public int attributesCount

ClassFile.attributes_count item.

attributes

public ArrayList<CLAttributeInfo> attributes

ClassFile.attributes item.

Constructor Detail

CLFile

CLFile()

Method Detail

write

public void write(CLOutputStream out)
           throws IOException

Write the contents of this class to the specified output stream.

Parameters:

out - output stream.

Throws:

IOException - if an error occurs while writing.

writeToStdOut

public void writeToStdOut()

Write the contents of the class file to STDOUT in a format similar to that of javap.

classAccessFlagsToString

public static String classAccessFlagsToString(int accessFlags)

Return (as a string) the class access permissions and properties contained in the specified mask of flags.

Parameters:

accessFlags - mask of access flags.

Returns:

a string identifying class access permissions and properties.

innerClassAccessFlagsToString

public static String innerClassAccessFlagsToString(int accessFlags)

Return (as a string) the inner class access permissions and properties contained in the specified mask of flags.

Parameters:

accessFlags - mask of access flags.

Returns:

a string identifying the inner class access permissions and properties.

fieldAccessFlagsToString

public static String fieldAccessFlagsToString(int accessFlags)

Return (as a string) the field access permissions and properties contained in the specified mask of flags.

Parameters:

accessFlags - mask of access flags.

Returns:

a string identifying the field access permissions and properties.

methodAccessFlagsToString

public static String methodAccessFlagsToString(int accessFlags)

Return (as a string) the method access permissions and properties contained in the specified mask of flags.

Parameters:

accessFlags - mask of access flags.

Returns:

a string identifying the method access permissions and properties.

accessFlagToInt

public static int accessFlagToInt(String accessFlag)

Return the integer value (mask) corresponding to the specified access flag.

Parameters:

accessFlag - access flag.

Returns:

the integer mask.