harpoon.IR.RawClass
Class AttributeExceptions

java.lang.Object
  harpoon.IR.RawClass.Attribute
      harpoon.IR.RawClass.AttributeExceptions

public class AttributeExceptions
extends Attribute

The Exceptions attribute is a variable-length attribute used in the attributes table of a method_info structure. The Exceptions attribute indicates which checked exceptions a method may throw. The must be exactly one Exceptions attribute in each method_info structure.

Version:

$Id: AttributeExceptions.java,v 1.3 2003/09/05 21:45:16 cananian Exp $

Author:

C. Scott Ananian <cananian@alumni.princeton.edu>

See Also:

"The Java Virtual Machine Specification, section 4.7.5", Attribute, MethodInfo

Field Summary

static String	ATTRIBUTE_NAME The string naming this Attribute type.
int[]	exception_index_table Each nonzero value in the exception_index_table must be a valid index into the constant_pool table.

Fields inherited from class harpoon.IR.RawClass.Attribute

attribute_name_index, parent

Constructor Summary

AttributeExceptions(ClassFile parent, int attribute_name_index, int[] exception_index_table)
Constructor.

Method Summary

long	attribute_length() The value of the attribute_length item indicates the length of the attribute, excluding the initial six bytes.
ConstantClass	exception_index_table(int i) Returns the CONSTANT_Class_info corresponding to an entry in the exception_index_table.
int	number_of_exceptions()
void	print(PrintWriter pw, int indent) Pretty-print the contents of this attribute.
void	write(ClassDataOutputStream out) Write to bytecode stream.

Methods inherited from class harpoon.IR.RawClass.Attribute

attribute_name_index, attribute_name, read, toString

Methods inherited from class java.lang.Object

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

Field Detail

ATTRIBUTE_NAME

public static final String ATTRIBUTE_NAME

The string naming this Attribute type.

See Also:

Constant Field Values

exception_index_table

public int[] exception_index_table

Each nonzero value in the exception_index_table must be a valid index into the constant_pool table. For each table item, if exception_index_table[i] != 0, where 0 <= i < number_of_exceptions, then the constant_pool entry at index exception_index_table[i] must be a CONSTANT_Class_info structure representing a class type that this method is declared to throw.

Constructor Detail

AttributeExceptions

public AttributeExceptions(ClassFile parent,
                           int attribute_name_index,
                           int[] exception_index_table)

Constructor.

Method Detail

attribute_length

public long attribute_length()

Description copied from class: Attribute

The value of the attribute_length item indicates the length of the attribute, excluding the initial six bytes.

Specified by:

attribute_length in class Attribute

number_of_exceptions

public int number_of_exceptions()

exception_index_table

public ConstantClass exception_index_table(int i)

Returns the CONSTANT_Class_info corresponding to an entry in the exception_index_table. Returns null if the entry is zero.

write

public void write(ClassDataOutputStream out)
           throws IOException

Write to bytecode stream.

Specified by:

write in class Attribute

Throws:

IOException

print

public void print(PrintWriter pw,
                  int indent)

Pretty-print the contents of this attribute.

Overrides:

print in class Attribute

Parameters:

indent - the indentation level to use.