org.jikesrvm.compilers.opt.ir

Class ExceptionHandlerBasicBlockBag

java.lang.Object

org.jikesrvm.compilers.opt.ir.ExceptionHandlerBasicBlockBag

public final class ExceptionHandlerBasicBlockBag
extends Object

A container for the chain of exception handlers for a basic block.

See Also:

BasicBlock, ExceptionHandlerBasicBlock

Field Summary

Fields

Modifier and Type	Field and Description
private ExceptionHandlerBasicBlockBag	caller If this is an inlined method, then this points to the enclosing method's (the caller's) ExcpetionHandlerBasicBlockBag.
private ExceptionHandlerBasicBlock[]	local The array of ExceptionHandlerBasicBlocks constructed by BC2IR based on the local set of handlers visible within a single method

Constructor Summary

Constructors

Constructor and Description
ExceptionHandlerBasicBlockBag(ExceptionHandlerBasicBlock[] l, ExceptionHandlerBasicBlockBag c) Create an EHBBB

Method Summary

Modifier and Type	Method and Description
Enumeration<BasicBlock>	enumerator() An enumeration of all the exception handler basic blocks (transitively) in the EHBBB.
ExceptionHandlerBasicBlockBag	getCaller() only for use by BC2IR; return caller
void	remove(BasicBlock bb) Takes an element out of the bag.

Methods inherited from class java.lang.Object

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

Field Detail

local

private ExceptionHandlerBasicBlock[] local

The array of ExceptionHandlerBasicBlocks constructed by BC2IR based on the local set of handlers visible within a single method

caller

private final ExceptionHandlerBasicBlockBag caller

If this is an inlined method, then this points to the enclosing method's (the caller's) ExcpetionHandlerBasicBlockBag. If this is the outermost method, then this is null

Constructor Detail

ExceptionHandlerBasicBlockBag

public ExceptionHandlerBasicBlockBag(ExceptionHandlerBasicBlock[] l,
                                     ExceptionHandlerBasicBlockBag c)

Create an EHBBB

Parameters:

l - the local array of EHBBs

c - the enclosing EHBBB

Method Detail

getCaller

public ExceptionHandlerBasicBlockBag getCaller()

only for use by BC2IR; return caller

Returns:

the contents of caller

remove

public void remove(BasicBlock bb)

Takes an element out of the bag. Throws an exception if the block to remove is not in the bag.

Parameters:

bb - the block to remove

enumerator

public Enumeration<BasicBlock> enumerator()

An enumeration of all the exception handler basic blocks (transitively) in the EHBBB.

Returns:

An enumeration of the exception handler basic blocks in the bag.