harpoon.IR.Tree
Class CJUMP

java.lang.Object
  harpoon.IR.Tree.Tree
      harpoon.IR.Tree.Stm
          harpoon.IR.Tree.CJUMP

All Implemented Interfaces:

HCodeElement

public class CJUMP
extends Stm

CJUMP objects are statements which stand for conditional branches.

Version:

$Id: CJUMP.java,v 1.4 2002/04/10 03:05:39 cananian Exp $

Author:

C. Scott Ananian <cananian@alumni.princeton.edu>, based on Modern Compiler Implementation in Java by Andrew Appel.

Nested Class Summary

Nested classes/interfaces inherited from class harpoon.IR.Tree.Tree

Tree.CloneCallback

Field Summary

Label	iffalse The label to jump to if test is false.
Label	iftrue The label to jump to if test is true.

Fields inherited from class harpoon.IR.Tree.Tree

arrayFactory, child

Constructor Summary

CJUMP(TreeFactory tf, HCodeElement source, Exp test, Label iftrue, Label iffalse)
Constructor.

Method Summary

void	accept(TreeVisitor v) Accept a visitor
Stm	build(TreeFactory tf, ExpList kids)
Exp	getTest() Returns the test condition for this CJUMP.
int	kind() Return an integer enumeration of the kind of this Tree.
Tree	rename(TreeFactory tf, TempMap tm, Tree.CloneCallback cb) Rename while cloning a subtree.
void	setTest(Exp test) Returns the test condition for this CJUMP.
String	toString()

Methods inherited from class harpoon.IR.Tree.Stm

build, isNop, linearize, toStm

Methods inherited from class harpoon.IR.Tree.Tree

clone, clone, getChild, getFactory, getFirstChild, getID, getLineNumber, getParent, getSibling, getSourceFile, hashCode, kids, rename, replace, setChild, unlink

Methods inherited from class java.lang.Object

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

Field Detail

iftrue

public final Label iftrue

The label to jump to if test is true.

iffalse

public final Label iffalse

The label to jump to if test is false.

Constructor Detail

CJUMP

public CJUMP(TreeFactory tf,
             HCodeElement source,
             Exp test,
             Label iftrue,
             Label iffalse)

Constructor.

Method Detail

getTest

public Exp getTest()

Returns the test condition for this CJUMP. The expression should evaluate into a boolean result.

setTest

public void setTest(Exp test)

Returns the test condition for this CJUMP. The given expression should evaluate into a boolean result.

kind

public int kind()

Description copied from class: Tree

Return an integer enumeration of the kind of this Tree. The enumerated values are defined in TreeKind.

Specified by:

kind in class Tree

build

public Stm build(TreeFactory tf,
                 ExpList kids)

Specified by:

build in class Stm

accept

public void accept(TreeVisitor v)

Accept a visitor

Specified by:

accept in class Tree

rename

public Tree rename(TreeFactory tf,
                   TempMap tm,
                   Tree.CloneCallback cb)

Description copied from class: Tree

Rename while cloning a subtree. This node and all child nodes are cloned; the 'temp' information of all TEMP nodes are renamed according to the supplied TempMap. Note that Temps not belonging to this.getFactory().tempFactory() are not affected. The callback() method of the supplied CloneCallback is invoked once on each subtree cloned, starting from the leaves and working back to the root in a post-order depth-first manner.

Specified by:

rename in class Tree

toString

public String toString()

Overrides:

toString in class Object