harpoon.IR.LowQuad
Class PFIELD

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

All Implemented Interfaces:

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

public class PFIELD
extends PPTR

PFIELD converts an object reference into a POINTER value that can be used to access non-static object fields. PFCONST is used to access static fields.

Version:

$Id: PFIELD.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

PFIELD(LowQuadFactory qf, HCodeElement source, Temp dst, Temp objectref)
Creates a PFIELD representing a conversion from an object reference into a POINTER that can be used to reference non-static object fields.

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

PFIELD

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

Creates a PFIELD representing a conversion from an object reference into a POINTER that can be used to reference non-static object fields.

Parameters:

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

objectref - the Temp holding the reference for the object whose fields we would like to access.

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