Package gnu.bytecode

Class ClassFileInput

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

java.io.DataInputStream

gnu.bytecode.ClassFileInput

All Implemented Interfaces:

java.io.Closeable, java.io.DataInput, java.lang.AutoCloseable

Direct Known Subclasses:

dump

public class ClassFileInput
extends java.io.DataInputStream

Class to read a ClassType from a DataInputStream (.class file).

Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor	Description
ClassFileInput(ClassType ctype, java.io.InputStream str)
ClassFileInput(java.io.InputStream str)

Method Summary

Modifier and Type	Method	Description
Attribute	readAttribute(java.lang.String name, int length, AttrContainer container)
int	readAttributes(AttrContainer container)
void	readClassInfo()
static ClassType	readClassType(java.io.InputStream str)	Read a class (in .class format) from an InputStream.
ConstantPool	readConstants()
void	readFields()
void	readFormatVersion()
boolean	readHeader()
void	readMethods()
void	skipAttribute(int length)

Methods inherited from class java.io.DataInputStream

read, read, readBoolean, readByte, readChar, readDouble, readFloat, readFully, readFully, readInt, readLine, readLong, readShort, readUnsignedByte, readUnsignedShort, readUTF, readUTF, skipBytes

Methods inherited from class java.io.FilterInputStream

available, close, mark, markSupported, read, reset, skip

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, transferTo

Methods inherited from class java.lang.Object

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

Constructor Detail

ClassFileInput

public ClassFileInput(java.io.InputStream str)
               throws java.io.IOException

Throws:

java.io.IOException

ClassFileInput

public ClassFileInput(ClassType ctype,
                      java.io.InputStream str)
               throws java.io.IOException,
                      java.lang.ClassFormatError

Throws:

java.io.IOException

java.lang.ClassFormatError

Method Detail

readClassType

public static ClassType readClassType(java.io.InputStream str)
                               throws java.io.IOException,
                                      java.lang.ClassFormatError

Read a class (in .class format) from an InputStream.

Returns:

A new ClassType object representing the class that was read.

Throws:

java.io.IOException

java.lang.ClassFormatError

readHeader

public boolean readHeader()
                   throws java.io.IOException

Throws:

java.io.IOException

readFormatVersion

public void readFormatVersion()
                       throws java.io.IOException

Throws:

java.io.IOException

readConstants

public ConstantPool readConstants()
                           throws java.io.IOException

Throws:

java.io.IOException

readClassInfo

public void readClassInfo()
                   throws java.io.IOException

Throws:

java.io.IOException

readAttributes

public int readAttributes(AttrContainer container)
                   throws java.io.IOException

Throws:

java.io.IOException

skipAttribute

public final void skipAttribute(int length)
                         throws java.io.IOException

Throws:

java.io.IOException

readAttribute

public Attribute readAttribute(java.lang.String name,
                               int length,
                               AttrContainer container)
                        throws java.io.IOException

Throws:

java.io.IOException

readFields

public void readFields()
                throws java.io.IOException

Throws:

java.io.IOException

readMethods

public void readMethods()
                 throws java.io.IOException

Throws:

java.io.IOException