harpoon.IR.LowQuad
Class PSET

java.lang.Object
  harpoon.IR.Quads.Quad
      harpoon.IR.LowQuad.LowQuad
          harpoon.IR.LowQuad.PSET

All Implemented Interfaces:

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

public class PSET
extends LowQuad

PSET represents a POINTER dereference to set a field or array element. The ptr Temp ought to contain a POINTER value.

Version:

$Id: PSET.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 Temp	ptr Temp holding the POINTER value to dereference and store to.
protected Temp	src Temp containing the desired new value of the field or element.
protected HClass	type The type of the object we are storing.

Fields inherited from class harpoon.IR.Quads.Quad

arrayFactory

Constructor Summary

PSET(LowQuadFactory qf, HCodeElement source, Temp ptr, Temp src, HClass type)
Creates a PSET representing a pointer dereference and store.

Method Summary

Temp[]	def() Return all the Temps defined by this Quad.
int	kind() Return an integer enumeration of the kind of this Quad.
Temp	ptr() Returns the Temp holding the POINTER value to dereference.
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.
Temp	src() Returns the Temp holding the desired new value for the dereference field or element.
String	toString() Force everyone to reimplement toString()
HClass	type() Returns the type of the field or array element we are storing.
Temp[]	use() Return all the Temps used by this Quad.

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

Field Detail

ptr

protected final Temp ptr

Temp holding the POINTER value to dereference and store to.

src

protected final Temp src

Temp containing the desired new value of the field or element.

type

protected final HClass type

The type of the object we are storing. This may be a sub-integer type, and thus disagree with the type of src. For non-primitive types, this may be simply Object; use a typemap and the src field if you need accurate non-primitive types.

Constructor Detail

PSET

public PSET(LowQuadFactory qf,
            HCodeElement source,
            Temp ptr,
            Temp src,
            HClass type)

Creates a PSET representing a pointer dereference and store.

Parameters:

ptr - the Temp holding the POINTER value to dereference.

src - the Temp containing the value to put into the field or element.

type - the type of the object we are storing; possibly a sub-integer type. Not necessarily precise if non-primitive.

Method Detail

ptr

public Temp ptr()

Returns the Temp holding the POINTER value to dereference.

src

public Temp src()

Returns the Temp holding the desired new value for the dereference field or element.

type

public HClass type()

Returns the type of the field or array element we are storing. Not necessarily precise if non-primitive. May be a sub-integer type.

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

use

public Temp[] use()

Description copied from class: Quad

Return all the Temps used by this Quad.

Specified by:

use in interface UseDefable

Overrides:

use in class Quad

def

public Temp[] def()

Description copied from class: Quad

Return all the Temps defined by this Quad.

Specified by:

def in interface UseDefable

Overrides:

def 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