harpoon.IR.Tree
Class SEQ

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

All Implemented Interfaces:

HCodeElement, HDataElement

public class SEQ
extends Stm
implements HDataElement

SEQ evaluates the left statement followed by the right statement.

Version:

$Id: SEQ.java,v 1.7 2003/06/04 15:45:47 salcianu 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

Fields inherited from class harpoon.IR.Tree.Tree

arrayFactory, child

Constructor Summary

SEQ(Stm left, Stm right)
Convenient constructor: the tree factory and the source arguments are identical to those for the left and the right statements (those statements must have the same tree factory and source).

SEQ(TreeFactory tf, HCodeElement source, Stm left, Stm right)
Constructor.

Method Summary

void	accept(TreeVisitor v) Accept a visitor
Stm	build(TreeFactory tf, ExpList kids)
Stm	getLeft() Returns the statement to evaluate first.
Stm	getRight() Returns the statement to evaluate last.
ExpList	kids() Return a list of subexpressions of this Tree.
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	setLeft(Stm left) Sets the statement to evaluate first.
void	setRight(Stm right) Sets the statement to evaluate last.
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, rename, replace, setChild, unlink

Methods inherited from class java.lang.Object

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

Methods inherited from interface harpoon.ClassFile.HDataElement

getID, getSourceFile

Constructor Detail

SEQ

public SEQ(TreeFactory tf,
           HCodeElement source,
           Stm left,
           Stm right)

Constructor.

SEQ

public SEQ(Stm left,
           Stm right)

Convenient constructor: the tree factory and the source arguments are identical to those for the left and the right statements (those statements must have the same tree factory and source).

Parameters:

left - Statement executed first

right - Statement executed second

Method Detail

getLeft

public Stm getLeft()

Returns the statement to evaluate first.

getRight

public Stm getRight()

Returns the statement to evaluate last.

setLeft

public void setLeft(Stm left)

Sets the statement to evaluate first.

setRight

public void setRight(Stm right)

Sets the statement to evaluate last.

kids

public ExpList kids()

Description copied from class: Tree

Return a list of subexpressions of this Tree.

Overrides:

kids in class Tree

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