org.jikesrvm.classloader

Class ExceptionHandlerMap

java.lang.Object

org.jikesrvm.classloader.ExceptionHandlerMap

public final class ExceptionHandlerMap
extends Object

A java method's try/catch/finally information.

Field Summary

Fields

Modifier and Type	Field and Description
private int[]	endPCs bytecode offset at which i-th try block ends (exclusive) 0-indexed from start of method's bytecodes[]
private TypeReference[]	exceptionTypes exception type for which i-th handler is to be invoked - something like "java/lang/IOException".
private int[]	handlerPCs bytecode offset at which exception handler for i-th try block begins 0-indexed from start of method's bytecodes[]
private int[]	startPCs bytecode offset at which i-th try block begins 0-indexed from start of method's bytecodes[]

Constructor Summary

Constructors

Modifier	Constructor and Description
private	ExceptionHandlerMap(int[] startPCs, int[] endPCs, int[] handlerPCs, TypeReference[] exceptionTypes)

Method Summary

Modifier and Type	Method and Description
(package private) ExceptionHandlerMap	deepCopy()
int[]	getEndPC()
TypeReference	getExceptionType(int i)
TypeReference[]	getExceptionTypes()
int[]	getHandlerPC()
int[]	getStartPC()
(package private) static ExceptionHandlerMap	readExceptionHandlerMap(DataInputStream input, int[] constantPool)
void	setEndPC(int[] newPCs)
void	setHandlerPC(int[] newPCs)
void	setStartPC(int[] newPCs)

Methods inherited from class java.lang.Object

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

Field Detail

startPCs

private int[] startPCs

bytecode offset at which i-th try block begins 0-indexed from start of method's bytecodes[]

endPCs

private int[] endPCs

bytecode offset at which i-th try block ends (exclusive) 0-indexed from start of method's bytecodes[]

handlerPCs

private int[] handlerPCs

bytecode offset at which exception handler for i-th try block begins 0-indexed from start of method's bytecodes[]

exceptionTypes

private final TypeReference[] exceptionTypes

exception type for which i-th handler is to be invoked - something like "java/lang/IOException". NOTE: When constructing the ExceptionHandlerMap we replace 'null' entries (means a finally block that catches everything) with RVMType.JavaLangThrowableType so we don't have to do anything special anywhere else in the VM.

Constructor Detail

ExceptionHandlerMap

private ExceptionHandlerMap(int[] startPCs,
                            int[] endPCs,
                            int[] handlerPCs,
                            TypeReference[] exceptionTypes)

Method Detail

getStartPC

public int[] getStartPC()

getEndPC

public int[] getEndPC()

getHandlerPC

public int[] getHandlerPC()

getExceptionTypes

public TypeReference[] getExceptionTypes()

getExceptionType

public TypeReference getExceptionType(int i)

setStartPC

public void setStartPC(int[] newPCs)

setEndPC

public void setEndPC(int[] newPCs)

setHandlerPC

public void setHandlerPC(int[] newPCs)

readExceptionHandlerMap

static ExceptionHandlerMap readExceptionHandlerMap(DataInputStream input,
                                                   int[] constantPool)
                                            throws IOException

Throws:

IOException

deepCopy

ExceptionHandlerMap deepCopy()