org.jikesrvm.compilers.opt.liveness
Class LiveIntervalEnumeration

java.lang.Object
  org.jikesrvm.compilers.opt.liveness.LiveIntervalEnumeration

All Implemented Interfaces:

Enumeration<LiveIntervalElement>

public class LiveIntervalEnumeration
extends Object
implements Enumeration<LiveIntervalElement>

Enumerator for a list of live intervals stored on a basic block.

Note: This is fragile. Use with care iff you know what you're doing.

TODO: redesign the way live info is stored on the IR to be a bit more robust. e.g., don't use scratch fields.

currentElement

private LiveIntervalElement currentElement

LiveIntervalEnumeration

public LiveIntervalEnumeration(LiveIntervalElement first)

Parameters:

first - The first live interval in a list to be enumerated

hasMoreElements

public boolean hasMoreElements()

Specified by:

hasMoreElements in interface Enumeration<LiveIntervalElement>

nextElement

public LiveIntervalElement nextElement()

Specified by:

nextElement in interface Enumeration<LiveIntervalElement>