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Java Source Code / Java Documentation » IDE » tIDE » org.objectweb.asm 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.objectweb.asm.Attribute

Attribute
public class Attribute (Code)
A non standard class, field, method or code attribute.
author:
   Eric Bruneton
author:
   Eugene Kuleshov


Field Summary
 Attributenext
     The next attribute in this attribute list.
final public  Stringtype
     The type of this attribute.
 byte[]value
     The raw value of this attribute, used only for unknown attributes.

Constructor Summary
protected  Attribute(String type)
     Constructs a new empty attribute.

Method Summary
final  intgetCount()
     Returns the length of the attribute list that begins with this attribute.
protected  Label[]getLabels()
     Returns the labels corresponding to this attribute.
final  intgetSize(ClassWriter cw, byte[] code, int len, int maxStack, int maxLocals)
     Returns the size of all the attributes in this attribute list.
Parameters:
  cw - the class writer to be used to convert the attributes into bytearrays, with the Attribute.write write method.
Parameters:
  code - the bytecode of the method corresponding to these codeattributes, or null if these attributes are not codeattributes.
Parameters:
  len - the length of the bytecode of the method corresponding tothese code attributes, or null if these attributes arenot code attributes.
Parameters:
  maxStack - the maximum stack size of the method corresponding tothese code attributes, or -1 if these attributes are not codeattributes.
Parameters:
  maxLocals - the maximum number of local variables of the methodcorresponding to these code attributes, or -1 if these attributesare not code attributes.
public  booleanisCodeAttribute()
     Returns true if this type of attribute is a code attribute.
public  booleanisUnknown()
     Returns true if this type of attribute is unknown.
final  voidput(ClassWriter cw, byte[] code, int len, int maxStack, int maxLocals, ByteVector out)
     Writes all the attributes of this attribute list in the given byte vector.
protected  Attributeread(ClassReader cr, int off, int len, char[] buf, int codeOff, Label[] labels)
     Reads a Attribute.type type attribute.
protected  ByteVectorwrite(ClassWriter cw, byte[] code, int len, int maxStack, int maxLocals)
     Returns the byte array form of this attribute.
Parameters:
  cw - the class to which this attribute must be added.

Field Detail
next
Attribute next(Code)
The next attribute in this attribute list. May be null.



type
final public String type(Code)
The type of this attribute.



value
byte[] value(Code)
The raw value of this attribute, used only for unknown attributes.




Constructor Detail
Attribute
protected Attribute(String type)(Code)
Constructs a new empty attribute.
Parameters:
  type - the type of the attribute.




Method Detail
getCount
final int getCount()(Code)
Returns the length of the attribute list that begins with this attribute. the length of the attribute list that begins with this attribute.



getLabels
protected Label[] getLabels()(Code)
Returns the labels corresponding to this attribute. the labels corresponding to this attribute, or null ifthis attribute is not a code attribute that contains labels.



getSize
final int getSize(ClassWriter cw, byte[] code, int len, int maxStack, int maxLocals)(Code)
Returns the size of all the attributes in this attribute list.
Parameters:
  cw - the class writer to be used to convert the attributes into bytearrays, with the Attribute.write write method.
Parameters:
  code - the bytecode of the method corresponding to these codeattributes, or null if these attributes are not codeattributes.
Parameters:
  len - the length of the bytecode of the method corresponding tothese code attributes, or null if these attributes arenot code attributes.
Parameters:
  maxStack - the maximum stack size of the method corresponding tothese code attributes, or -1 if these attributes are not codeattributes.
Parameters:
  maxLocals - the maximum number of local variables of the methodcorresponding to these code attributes, or -1 if these attributesare not code attributes. the size of all the attributes in this attribute list. This sizeincludes the size of the attribute headers.



isCodeAttribute
public boolean isCodeAttribute()(Code)
Returns true if this type of attribute is a code attribute. true if this type of attribute is a code attribute.



isUnknown
public boolean isUnknown()(Code)
Returns true if this type of attribute is unknown. The default implementation of this method always returns true. true if this type of attribute is unknown.



put
final void put(ClassWriter cw, byte[] code, int len, int maxStack, int maxLocals, ByteVector out)(Code)
Writes all the attributes of this attribute list in the given byte vector.
Parameters:
  cw - the class writer to be used to convert the attributes into bytearrays, with the Attribute.write write method.
Parameters:
  code - the bytecode of the method corresponding to these codeattributes, or null if these attributes are not codeattributes.
Parameters:
  len - the length of the bytecode of the method corresponding tothese code attributes, or null if these attributes arenot code attributes.
Parameters:
  maxStack - the maximum stack size of the method corresponding tothese code attributes, or -1 if these attributes are not codeattributes.
Parameters:
  maxLocals - the maximum number of local variables of the methodcorresponding to these code attributes, or -1 if these attributesare not code attributes.
Parameters:
  out - where the attributes must be written.



read
protected Attribute read(ClassReader cr, int off, int len, char[] buf, int codeOff, Label[] labels)(Code)
Reads a Attribute.type type attribute. This method must return a new Attribute object, of type Attribute.type type , corresponding to the len bytes starting at the given offset, in the given class reader.
Parameters:
  cr - the class that contains the attribute to be read.
Parameters:
  off - index of the first byte of the attribute's content in ClassReader.b cr.b. The 6 attribute header bytes, containing thetype and the length of the attribute, are not taken into accounthere.
Parameters:
  len - the length of the attribute's content.
Parameters:
  buf - buffer to be used to callClassReader.readUTF8 readUTF8,ClassReader.readClass(intchar[]) readClass orClassReader.readConst readConst.
Parameters:
  codeOff - index of the first byte of code's attribute content inClassReader.b cr.b, or -1 if the attribute to be read isnot a code attribute. The 6 attribute header bytes, containing thetype and the length of the attribute, are not taken into accounthere.
Parameters:
  labels - the labels of the method's code, or null if theattribute to be read is not a code attribute. a new Attribute object corresponding to the givenbytes.



write
protected ByteVector write(ClassWriter cw, byte[] code, int len, int maxStack, int maxLocals)(Code)
Returns the byte array form of this attribute.
Parameters:
  cw - the class to which this attribute must be added. This parametercan be used to add to the constant pool of this class the itemsthat corresponds to this attribute.
Parameters:
  code - the bytecode of the method corresponding to this codeattribute, or null if this attribute is not a codeattributes.
Parameters:
  len - the length of the bytecode of the method corresponding to thiscode attribute, or null if this attribute is not a codeattribute.
Parameters:
  maxStack - the maximum stack size of the method corresponding tothis code attribute, or -1 if this attribute is not a codeattribute.
Parameters:
  maxLocals - the maximum number of local variables of the methodcorresponding to this code attribute, or -1 if this attribute isnot a code attribute. the byte array form of this attribute.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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