edu.ksu.cis.projects.bogor.ast
Class WhileStatement

java.lang.Object
  edu.ksu.cis.projects.bogor.ast.Node
      edu.ksu.cis.projects.bogor.ast.Statement
          edu.ksu.cis.projects.bogor.ast.WhileStatement

All Implemented Interfaces:

IExpParent, IStatementParent, Disposable, Serializable, Cloneable

public class WhileStatement
extends Statement
implements IExpParent, IStatementParent

The while statement AST.

Version:

CVS $Revision: 1.2 $ $Date: 2005/01/13 23:40:09 $

Author:

Robby

See Also:

Serialized Form

Field Summary

protected Exp	exp Holds the condition.
protected Statement	stmt Holds the statement.

Fields inherited from class edu.ksu.cis.projects.bogor.ast.Node

ILLEGAL_LOCAL_ID_CHAR

Constructor Summary

WhileStatement(Exp exp, Statement stmt)
Default constructor.

Method Summary

WhileStatement	clone() Clones this object (deep clone); including location info.
void	dispose() Disposes exp and stmt.
Exp	getExp() Gets the condition.
Statement	getStatement() Gets the statement.
void	setExp(Exp exp) Sets the condition.
void	setStatement(Statement stmt) Sets the statement.
protected String	toString(String indent) Returns the string representation of this object.
void	visit(ASTVisitor visitor)

Methods inherited from class edu.ksu.cis.projects.bogor.ast.Statement

getParent, setParent, toString

Methods inherited from class edu.ksu.cis.projects.bogor.ast.Node

getLocationInfo, getProperty, putProperty, setLocationInfo

Methods inherited from class java.lang.Object

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

Field Detail

exp

protected Exp exp

Holds the condition. Must be non-null.

stmt

protected Statement stmt

Holds the statement. Must be non-null.

Constructor Detail

WhileStatement

public WhileStatement(Exp exp,
                      Statement stmt)

Default constructor. Sets this object as the exp's parent. Sets this object as the stmt's parent.

Parameters:

exp - The condition. Must be non-null.

stmt - The statement. Must be non-null.

Method Detail

clone

public WhileStatement clone()

Clones this object (deep clone); including location info.

Specified by:

clone in class Statement

Returns:

The clone of this object. Non-null.

dispose

public void dispose()

Disposes exp and stmt. Can be called repeatedly. Once called, avoid using this object.

Specified by:

dispose in interface Disposable

Overrides:

dispose in class Statement

getExp

public Exp getExp()

Gets the condition.

Returns:

The condition. Non-null.

setExp

public void setExp(Exp exp)

Sets the condition. Sets this object as the exp's parent.

Parameters:

exp - The condition. Must be non-null.

getStatement

public Statement getStatement()

Gets the statement.

Returns:

The statement. Non-null.

setStatement

public void setStatement(Statement stmt)

Sets the statement. Sets this object as the stmt's parent.

Parameters:

stmt - The statement. Must be non-null.

visit

public void visit(ASTVisitor visitor)

Specified by:

visit in class Node

toString

protected String toString(String indent)

Returns the string representation of this object.

Specified by:

toString in class Statement

Parameters:

indent - The indentation for this statement.

Returns:

 
  
       "while exp do\n" + 
       "    stmt\n" + 
       "end\n".