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

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

ExceptionHandlerBasicBlockBag

public ExceptionHandlerBasicBlockBag(ExceptionHandlerBasicBlock[] l,
                                     ExceptionHandlerBasicBlockBag c)

Create an EHBBB

Parameters:

l - the local array of EHBBs

c - the enclosing EHBBB

getCaller

public ExceptionHandlerBasicBlockBag getCaller()

only for use by BC2IR; return caller

Returns:

the contents of caller

remove

public void remove(BasicBlock bb)

take an element out f the bag. Throw an exception if the block to remove is not in the bag

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.