harpoon.IR.LowQuad
Class PMETHOD

java.lang.Object
  harpoon.IR.Quads.Quad
      harpoon.IR.LowQuad.LowQuad
          harpoon.IR.LowQuad.PPTR
              harpoon.IR.LowQuad.PMETHOD

All Implemented Interfaces:

HCodeElement, CFGraphable<Quad,Edge>, UseDefable, Graph.Node<Quad,Edge>, Serializable, Cloneable, Comparable<Quad>

public class PMETHOD
extends PPTR

PMETHOD converts an object reference into a POINTER value that can be used to invoke object methods. Only necessary for virtual methods. Non-virtual methods can be invoked via the POINTER obtained by PMCONST.
NOTE THAT constructors and invocations using the super keyword are non-virtual. See the harpoon.IR.Quads.CALL.

Version:

$Id: PMETHOD.java,v 1.3 2002/04/11 04:00:21 cananian Exp $

Author:

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

See Also:

Serialized Form

Field Summary

Fields inherited from class harpoon.IR.LowQuad.PPTR

dst, objectref

Fields inherited from class harpoon.IR.Quads.Quad

arrayFactory

Constructor Summary

PMETHOD(LowQuadFactory qf, HCodeElement source, Temp dst, Temp objectref)
Creates a PMETHOD representing a conversion from an object reference into a POINTER that can be used to invoke virtual methods.

Method Summary

int	kind() Return an integer enumeration of the kind of this Quad.
Quad	rename(QuadFactory qf, TempMap defMap, TempMap useMap) Create a new Quad identical to the receiver, but with all Temps renamed according to a mapping.
String	toString() Force everyone to reimplement toString()

Methods inherited from class harpoon.IR.LowQuad.PPTR

def, dst, objectref, use

Methods inherited from class harpoon.IR.LowQuad.LowQuad

accept, accept

Methods inherited from class harpoon.IR.Quads.Quad

addEdge, addEdges, addHandlers, clone, clone, clone, compareTo, defC, edgeC, edges, getFactory, getID, getLineNumber, getSourceFile, handlers, hashCode, isPred, isSucc, map, map, map, next, next, nextEdge, nextEdge, nextLength, pred, predC, prev, prev, prevEdge, prevEdge, prevLength, remove, removeHandlers, rename, replace, succ, succC, toLongString, transferHandlers, useC

Methods inherited from class java.lang.Object

equals, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

PMETHOD

public PMETHOD(LowQuadFactory qf,
               HCodeElement source,
               Temp dst,
               Temp objectref)

Creates a PMETHOD representing a conversion from an object reference into a POINTER that can be used to invoke virtual methods.

Parameters:

dst - the Temp in which to store the computed POINTER.

objectref - the Temp holding the reference for the object whose virtual methods we would like to invoke.

Method Detail

kind

public int kind()

Description copied from class: Quad

Return an integer enumeration of the kind of this Quad. The enumerated values are defined in QuadKind.

Specified by:

kind in class Quad

rename

public Quad rename(QuadFactory qf,
                   TempMap defMap,
                   TempMap useMap)

Description copied from class: Quad

Create a new Quad identical to the receiver, but with all Temps renamed according to a mapping. The new Quad will have no edges.

The new Quad will come from the specified QuadFactory.

Specified by:

rename in class Quad

toString

public String toString()

Description copied from class: Quad

Force everyone to reimplement toString()

Specified by:

toString in class Quad