harpoon.IR.Quads
Class GET

java.lang.Object
  harpoon.IR.Quads.Quad
      harpoon.IR.Quads.GET

All Implemented Interfaces:

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

public class GET
extends Quad

GET represent field access (get) operations. The objectref is null if the field is static.

Version:

$Id: GET.java,v 1.5 2002/04/11 04:00:34 cananian Exp $

Author:

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

See Also:

Serialized Form

Field Summary

protected Temp	dst Temp in which to store the fetched field contents.
protected HField	field The field description.
protected Temp	objectref Reference to the object containing the field.

Fields inherited from class harpoon.IR.Quads.Quad

arrayFactory

Constructor Summary

GET(QuadFactory qf, HCodeElement source, Temp dst, HField field, Temp objectref)
Creates a GET representing a field access.

Method Summary

<T> T	accept(QuadValueVisitor<T> v)
void	accept(QuadVisitor v) Accept a visitor.
Temp[]	def() Returns the Temp defined by this Quad.
Temp	dst() Returns the Temp in which to store the fetched field.
HField	field() Returns the field to fetch.
boolean	isStatic() Determines whether the GET is of a static field.
int	kind() Return an integer enumeration of the kind of this Quad.
Temp	objectref() Returns the object containing the specified field, or null if the field is static.
Quad	rename(QuadFactory qqf, TempMap defMap, TempMap useMap) Create a new Quad identical to the receiver, but with all Temps renamed according to a mapping.
String	toString() Returns human-readable representation.
Temp[]	use() Returns the Temp used by this Quad.

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

dst

protected Temp dst

Temp in which to store the fetched field contents.

field

protected final HField field

The field description.

objectref

protected Temp objectref

Reference to the object containing the field.

null if field is static.

Constructor Detail

GET

public GET(QuadFactory qf,
           HCodeElement source,
           Temp dst,
           HField field,
           Temp objectref)

Creates a GET representing a field access.

Parameters:

dst - the Temp in which to store the fetched field.

field - the field description.

objectref - the Temp referencing the object containing the specified field, if the field is not static. For static fields, objectref is null.

Method Detail

dst

public Temp dst()

Returns the Temp in which to store the fetched field.

field

public HField field()

Returns the field to fetch.

objectref

public Temp objectref()

Returns the object containing the specified field, or null if the field is static.

use

public Temp[] use()

Returns the Temp used by this Quad.

Specified by:

use in interface UseDefable

Overrides:

use in class Quad

Returns:

the objectref field.

def

public Temp[] def()

Returns the Temp defined by this Quad.

Specified by:

def in interface UseDefable

Overrides:

def in class Quad

Returns:

the dst field.

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 qqf,
                   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

accept

public void accept(QuadVisitor v)

Description copied from class: Quad

Accept a visitor.

Specified by:

accept in class Quad

accept

public <T> T accept(QuadValueVisitor<T> v)

Specified by:

accept in class Quad

toString

public String toString()

Returns human-readable representation.

Specified by:

toString in class Quad

isStatic

public boolean isStatic()

Determines whether the GET is of a static field.