ClassFile (Java Lookahead Parser Generator)

Object
- ClassFile

All Implemented Interfaces:

Writable

Direct Known Subclasses:

SubClass
```
public class ClassFile
extends Object
implements Writable
```
ClassFile wraps java classfile

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`ACC_ABSTRACT` Declared abstract; must not be instantiated.
`static int`	`ACC_ANNOTATION` Declared as an annotation type.
`static int`	`ACC_BRIDGE` A bridge method, generated by the compiler
`static int`	`ACC_ENUM` Declared as an enum type.
`static int`	`ACC_FINAL` Declared final; no subclasses allowed.
`static int`	`ACC_INTERFACE` Is an interface, not a class.
`static int`	`ACC_NATIVE` Declared native; implemented in a language other than Java
`static int`	`ACC_PUBLIC` Declared public; may be accessed from outside its package.
`static int`	`ACC_STRICT` Declared strictfp; ﬂoating-point mode is FP-strict
`static int`	`ACC_SUPER` Treat superclass methods specially when invoked by the invokespecial instruction.
`static int`	`ACC_SYNCHRONIZED` Declared synchronized; invocation is wrapped in a monitor lock
`static int`	`ACC_SYNTHETIC` Declared synthetic; Not present in the source code.
`static int`	`ACC_VARARGS` Declared with variable number of arguments.
`protected int`	`access_flags`
`protected int`	`magic`
`protected int`	`major_version`
`protected int`	`minor_version`
`protected int`	`super_class`
`protected Type`	`superClass`
`protected int`	`this_class`
`protected Type`	`thisClass`

Constructor Summary

Constructors
Modifier	Constructor and Description
`protected`	`ClassFile()`
	`ClassFile(byte[] bytes)`
	`ClassFile(Class<?> cls)`
	`ClassFile(File file)`
	`ClassFile(InputStream in)`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addAttribute(AttributeInfo ai)` Adds a new attribute
`protected int`	`addConstantInfo(ConstantInfo ci, int fromIndex)`
`void`	`addFieldInfo(FieldInfo fieldInfo)`
`void`	`addInterface(short intf)`
`void`	`addMethodInfo(MethodInfo methodInfo)`
`protected void`	`addWrapper(int index, Object wrapper)`
`int`	`getAccess_flags()`
`AnnotationWrapper`	`getAnnotation(Class<? extends Annotation> type)`
`String[]`	`getArgNames(Member method)`
`String`	`getClassDescription(int index)` Returns a descriptor to class at index.
`protected int`	`getClassIndex(Type type)`
`Type`	`getClassName()`
`int`	`getConstantIndex(double constant)` Returns the constant map index to constant
`int`	`getConstantIndex(float constant)` Returns the constant map index to constant
`int`	`getConstantIndex(int constant)` Returns the constant map index to constant
`int`	`getConstantIndex(long constant)` Returns the constant map index to constant
`int`	`getConstantIndex(String constant)` Returns the constant map index to constant
`ConstantInfo`	`getConstantInfo(int index)` Return constantInfo at index.
`int`	`getConstantPoolSize()`
`int`	`getConstructorIndex(Member constructor)` Returns the constant map index to constructor
`Object`	`getElement(int index)` Returns a wrapped element from constant map
`int`	`getFieldIndex(Member field)` Returns the constant map index to field.
`int`	`getFieldIndex(Type declaringClass, String name, String descriptor)` Returns the constant map index to field
`int`	`getFieldIndex(Type declaringClass, String name, Type type)` Returns the constant map index to field
`List<FieldInfo>`	`getFields()`
`int`	`getMajor_version()`
`String`	`getMethodDescription(int index)` Returns a descriptor to method at index.
`int`	`getMethodIndex(Member method)` Returns the constant map index to method
`MethodInfo`	`getMethodInfo(Member method)` Returns MethodInfo or null.
`List<MethodInfo>`	`getMethodInfos()`
`int`	`getMinor_version()`
`int`	`getNameAndTypeIndex(String name, String descriptor)` Returns the constant map index to name and type
`int`	`getNameIndex(String name)` Returns the constant map index to name
`SortedSet<String>`	`getReferencedClassnames()` Returns all classnames (in internal form) that this class references
`int`	`getRefIndex(Class<? extends ConstantInfo.Ref> refType, String fullyQualifiedname, String name, String descriptor)` Returns the constant map index to reference
`String`	`getString(int index)` Return a constant string at index.
`Type`	`getSuperClassName()`
`Type`	`getThisClass()`
`boolean`	`isImplemented(Member method)`
`static void`	`main(String[] args)`
`boolean`	`referencesClass(Type type)`
`boolean`	`referencesMethod(Member method)` Return true if class contains method ref to given method
`void`	`write(DataOutput out)` Writes the class

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - ACC_PUBLIC
```
public static final int ACC_PUBLIC
```
    Declared public; may be accessed from outside its package.
    
    See Also:
    Constant Field Values
  - ACC_FINAL
```
public static final int ACC_FINAL
```
    Declared final; no subclasses allowed.
    
    See Also:
    Constant Field Values
  - ACC_SUPER
```
public static final int ACC_SUPER
```
    Treat superclass methods specially when invoked by the invokespecial instruction.
    
    See Also:
    Constant Field Values
  - ACC_SYNCHRONIZED
```
public static final int ACC_SYNCHRONIZED
```
    Declared synchronized; invocation is wrapped in a monitor lock
    
    See Also:
    Constant Field Values
  - ACC_BRIDGE
```
public static final int ACC_BRIDGE
```
    A bridge method, generated by the compiler
    
    See Also:
    Constant Field Values
  - ACC_VARARGS
```
public static final int ACC_VARARGS
```
    Declared with variable number of arguments.
    
    See Also:
    Constant Field Values
  - ACC_NATIVE
```
public static final int ACC_NATIVE
```
    Declared native; implemented in a language other than Java
    
    See Also:
    Constant Field Values
  - ACC_INTERFACE
```
public static final int ACC_INTERFACE
```
    Is an interface, not a class.
    
    See Also:
    Constant Field Values
  - ACC_ABSTRACT
```
public static final int ACC_ABSTRACT
```
    Declared abstract; must not be instantiated.
    
    See Also:
    Constant Field Values
  - ACC_STRICT
```
public static final int ACC_STRICT
```
    Declared strictfp; ﬂoating-point mode is FP-strict
    
    See Also:
    Constant Field Values
  - ACC_SYNTHETIC
```
public static final int ACC_SYNTHETIC
```
    Declared synthetic; Not present in the source code.
    
    See Also:
    Constant Field Values
  - ACC_ANNOTATION
```
public static final int ACC_ANNOTATION
```
    Declared as an annotation type.
    
    See Also:
    Constant Field Values
  - ACC_ENUM
```
public static final int ACC_ENUM
```
    Declared as an enum type.
    
    See Also:
    Constant Field Values
  - magic
```
protected int magic
```
  - minor_version
```
protected int minor_version
```
  - major_version
```
protected int major_version
```
  - access_flags
```
protected int access_flags
```
  - this_class
```
protected int this_class
```
  - super_class
```
protected int super_class
```
  - superClass
```
protected Type superClass
```
  - thisClass
```
protected Type thisClass
```
- Constructor Detail
  - ClassFile
```
protected ClassFile()
```
  - ClassFile
```
public ClassFile(Class<?> cls)
          throws IOException
```
    Throws:
    
    IOException
  - ClassFile
```
public ClassFile(byte[] bytes)
          throws IOException
```
    Throws:
    
    IOException
  - ClassFile
```
public ClassFile(InputStream in)
          throws IOException
```
    Throws:
    
    IOException
  - ClassFile
```
public ClassFile(File file)
          throws IOException
```
    Throws:
    
    IOException
- Method Detail
  - getAnnotation
```
public AnnotationWrapper getAnnotation(Class<? extends Annotation> type)
```
  - getThisClass
```
public Type getThisClass()
```
  - getConstantPoolSize
```
public int getConstantPoolSize()
```
  - getFieldIndex
```
public int getFieldIndex(Type declaringClass,
                String name,
                Type type)
```
    Returns the constant map index to field
    
    Parameters:
    declaringClass -
    name -
    type -
    
    Returns:
  - getFieldIndex
```
public int getFieldIndex(Type declaringClass,
                String name,
                String descriptor)
```
    Returns the constant map index to field
    
    Parameters:
    declaringClass -
    name -
    descriptor -
    
    Returns:
  - getMethodIndex
```
public int getMethodIndex(Member method)
```
    Returns the constant map index to method
    
    Parameters:
    method -
    
    Returns:
  - getRefIndex
```
public int getRefIndex(Class<? extends ConstantInfo.Ref> refType,
              String fullyQualifiedname,
              String name,
              String descriptor)
```
    Returns the constant map index to reference
    
    Parameters:
    refType -
    fullyQualifiedname -
    name -
    descriptor -
    
    Returns:
  - getNameIndex
```
public int getNameIndex(String name)
```
    Returns the constant map index to name
    
    Parameters:
    name -
    
    Returns:
  - getNameAndTypeIndex
```
public int getNameAndTypeIndex(String name,
                      String descriptor)
```
    Returns the constant map index to name and type
    
    Parameters:
    name -
    descriptor -
    
    Returns:
  - getConstantIndex
```
public final int getConstantIndex(int constant)
```
    Returns the constant map index to constant
    
    Parameters:
    constant -
    
    Returns:
  - getConstantIndex
```
public final int getConstantIndex(float constant)
```
    Returns the constant map index to constant
    
    Parameters:
    constant -
    
    Returns:
  - getConstantIndex
```
public final int getConstantIndex(double constant)
```
    Returns the constant map index to constant
    
    Parameters:
    constant -
    
    Returns:
  - getConstantIndex
```
public final int getConstantIndex(long constant)
```
    Returns the constant map index to constant
    
    Parameters:
    constant -
    
    Returns:
  - getConstantIndex
```
public final int getConstantIndex(String constant)
```
    Returns the constant map index to constant
    
    Parameters:
    constant -
    
    Returns:
  - addMethodInfo
```
public void addMethodInfo(MethodInfo methodInfo)
```
  - addFieldInfo
```
public void addFieldInfo(FieldInfo fieldInfo)
```
  - getFields
```
public List<FieldInfo> getFields()
```
  - getMethodInfos
```
public List<MethodInfo> getMethodInfos()
```
  - getArgNames
```
public String[] getArgNames(Member method)
```
  - getClassName
```
public Type getClassName()
```
  - getSuperClassName
```
public Type getSuperClassName()
```
  - getAccess_flags
```
public int getAccess_flags()
```
  - getMajor_version
```
public int getMajor_version()
```
  - getMinor_version
```
public int getMinor_version()
```
  - getReferencedClassnames
```
public SortedSet<String> getReferencedClassnames()
```
    Returns all classnames (in internal form) that this class references
    
    Returns:
  - addConstantInfo
```
protected int addConstantInfo(ConstantInfo ci,
                  int fromIndex)
```
  - addWrapper
```
protected void addWrapper(int index,
              Object wrapper)
```
  - addInterface
```
public void addInterface(short intf)
```
  - addAttribute
```
public void addAttribute(AttributeInfo ai)
```
    Adds a new attribute
    
    Parameters:
    ai -
  - getElement
```
public Object getElement(int index)
```
    Returns a wrapped element from constant map
    
    Parameters:
    index -
    
    Returns:
  - getFieldIndex
```
public int getFieldIndex(Member field)
```
    Returns the constant map index to field.
    
    Parameters:
    field -
    
    Returns:
  - getConstructorIndex
```
public int getConstructorIndex(Member constructor)
```
    Returns the constant map index to constructor
    
    Parameters:
    constructor -
    
    Returns:
  - getMethodDescription
```
public String getMethodDescription(int index)
```
    Returns a descriptor to method at index.
    
    Parameters:
    index -
    
    Returns:
  - getClassDescription
```
public String getClassDescription(int index)
```
    Returns a descriptor to class at index.
    
    Parameters:
    index -
    
    Returns:
  - getMethodInfo
```
public MethodInfo getMethodInfo(Member method)
```
    Returns MethodInfo or null.
    
    Parameters:
    method -
    
    Returns:
  - isImplemented
```
public boolean isImplemented(Member method)
```
  - referencesMethod
```
public boolean referencesMethod(Member method)
```
    Return true if class contains method ref to given method
    
    Parameters:
    method -
    
    Returns:
  - referencesClass
```
public boolean referencesClass(Type type)
```
  - getClassIndex
```
protected final int getClassIndex(Type type)
```
  - getConstantInfo
```
public final ConstantInfo getConstantInfo(int index)
```
    Return constantInfo at index.
    
    Parameters:
    index -
    
    Returns:
  - getString
```
public final String getString(int index)
```
    Return a constant string at index.
    
    Parameters:
    index -
    
    Returns:
  - write
```
public void write(DataOutput out)
           throws IOException
```
    Writes the class
    
    Specified by:
    
    write in interface Writable
    
    Parameters:
    out -
    
    Throws:
    
    IOException
  - main
```
public static void main(String[] args)
```
    Parameters:
    args - the command line arguments

Class ClassFile

Field Summary

Constructor Summary

Method Summary

Methods inherited from class Object

Field Detail

ACC_PUBLIC

ACC_FINAL

ACC_SUPER

ACC_SYNCHRONIZED

ACC_BRIDGE

ACC_VARARGS

ACC_NATIVE

ACC_INTERFACE

ACC_ABSTRACT

ACC_STRICT

ACC_SYNTHETIC

ACC_ANNOTATION

ACC_ENUM

magic

minor_version

major_version

access_flags

this_class

super_class

superClass

thisClass

Constructor Detail

ClassFile

ClassFile

ClassFile

ClassFile

ClassFile

Method Detail

getAnnotation

getThisClass

getConstantPoolSize

getFieldIndex

getFieldIndex

getMethodIndex

getRefIndex

getNameIndex

getNameAndTypeIndex

getConstantIndex

getConstantIndex

getConstantIndex

getConstantIndex

getConstantIndex

addMethodInfo

addFieldInfo

getFields

getMethodInfos

getArgNames

getClassName

getSuperClassName

getAccess_flags

getMajor_version

getMinor_version

getReferencedClassnames

addConstantInfo

addWrapper

addInterface

addAttribute

getElement

getFieldIndex

getConstructorIndex

getMethodDescription

getClassDescription

getMethodInfo

isImplemented

referencesMethod

referencesClass

getClassIndex

getConstantInfo

getString

write

main