harpoon.IR.LowQuad
Class PFOFFSET

java.lang.Object
  harpoon.IR.Quads.Quad
      harpoon.IR.LowQuad.LowQuad
          harpoon.IR.LowQuad.PCONST
              harpoon.IR.LowQuad.PFOFFSET

All Implemented Interfaces:

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

public class PFOFFSET
extends PCONST

PFOFFSET computes the POINTER offset needed to access a given non-static field. PFCONST is used to access a static field.

Version:

$Id: PFOFFSET.java,v 1.5 2002/04/11 04:00:21 cananian Exp $

Author:

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

See Also:

Serialized Form

Field Summary

protected HField

field The HField to address.

Fields inherited from class harpoon.IR.LowQuad.PCONST

dst

Fields inherited from class harpoon.IR.Quads.Quad

arrayFactory

Constructor Summary

PFOFFSET(LowQuadFactory qf, HCodeElement source, Temp dst, HField field)
Creates a PFOFFSET representing the POINTER offset needed to access a given non-static field.

Method Summary

HField	field() Returns the field whose offset is computed.
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.PCONST

def, dst

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, use, useC

Methods inherited from class java.lang.Object

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

Field Detail

field

protected final HField field

The HField to address.

Constructor Detail

PFOFFSET

public PFOFFSET(LowQuadFactory qf,
                HCodeElement source,
                Temp dst,
                HField field)

Creates a PFOFFSET representing the POINTER offset needed to access a given non-static field.

Parameters:

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

field - the HField whose offset to compute.

Method Detail

field

public HField field()

Returns the field whose offset is computed.

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