com.ibm.wala.shrike.shrikeCT

Class ClassReader.AttrIterator

java.lang.Object

com.ibm.wala.shrike.shrikeCT.ClassReader.AttrIterator

Enclosing class:

ClassReader

public static final class ClassReader.AttrIterator
extends java.lang.Object

AttrIterator provides access to attributes in the class file.

AttrIterators can be reused for many different iterations, like this:

   AttrIterator iter = new AttrIterator();
    int fieldCount = reader.getFieldCount();
    for (int i = 0; i < fieldCount; i++) {
      reader.initFieldAttributeIterator(i, iter);
      for (; iter.isValid(); iter.advance()) {
        if (iter.getName().equals("ConstantValue")) {
          ConstantValueReader cv = new ConstantValueReader(iter);
          ...
        }
      }
    }
 

Constructor Summary

Constructors

Constructor and Description
AttrIterator() Create a blank iterator.

Method Summary

Modifier and Type	Method and Description
void	advance() The attribute iterator must be valid.
ClassReader	getClassReader()
int	getDataOffset() The attribute iterator must be valid.
int	getDataSize() The attribute iterator must be valid.
java.lang.String	getName() The attribute iterator must be valid.
int	getNameIndex() The attribute iterator must be valid.
int	getRawOffset() The attribute iterator must be valid.
int	getRawSize() The attribute iterator must be valid.
int	getRemainingAttributesCount()
boolean	isValid()

Methods inherited from class java.lang.Object

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

Constructor Detail

AttrIterator

public AttrIterator()

Create a blank iterator. The iterator is not valid until it is initialized by some other class.

Method Detail

getClassReader

public ClassReader getClassReader()

getRawOffset

public int getRawOffset()

The attribute iterator must be valid.

Returns:

the offset of the raw attribute data (including attribute header) in the class file data

getRawSize

public int getRawSize()

The attribute iterator must be valid.

Returns:

the size of the raw attribute data (including attribute header) in the class file data

getDataOffset

public int getDataOffset()

The attribute iterator must be valid.

Returns:

the offset of the attribute data (excluding attribute header) in the class file data

getDataSize

public int getDataSize()

The attribute iterator must be valid.

Returns:

the size of the attribute data (excluding attribute header) in the class file data

getRemainingAttributesCount

public int getRemainingAttributesCount()

Returns:

the number of attributes left in the list, including this attribute (if valid)

getNameIndex

public int getNameIndex()

The attribute iterator must be valid.

Returns:

the constant pool index of the name of the attribute

getName

public java.lang.String getName()
                         throws InvalidClassFileException

The attribute iterator must be valid.

Returns:

the name of the attribute

Throws:

InvalidClassFileException

isValid

public boolean isValid()

Returns:

whether this iterator is valid

advance

public void advance()

The attribute iterator must be valid.

The iterator is advanced to the next attribute (which might not exist, so the iterator might become invalid).