Hi,
attached are the changed macro files which allow parse trees to be serialized.
The changes and additions are marked with the following tags :[CHANGED] [ADDED]
I removed the code which was specific to our project. And I changed the
TypeLinkedList attributes to be of type LinkedList again.
If you want to use the files just copy them into the appropriate directory
of your sablecc installation. BE SURE TO BACKUP THE ORIGINAL FILES.
If you run sablecc now it will generate node classes which can be serialized.
The serialization isn't optimized in any way, the standard java mechanism is
used. Because of that serialization and deserialization is quite slow.
Cheers, Leo
===============================================================================
Thomas Leonhardt email leonhardt@informatik.tu-darmstadt.de
TU Darmstadt WWW http://www.pi.informatik.tu-darmstadt.de
FG Praktische Informatik phone +49 / (0)6151 / 16 - 5313
Wilhelminenstr. 7 fax +49 / (0)6151 / 16 - 5472
D-64283 Darmstadt
Germany
===============================================================================
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* This file is part of SableCC. *
* See the file "LICENSE" for copyright information and the *
* terms and conditions for copying, distribution and *
* modification of SableCC. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
Macro:AlternativeHeader
/* This file was generated by SableCC (http://www.sablecc.org/). */
package $0$;
import java.util.*;
import $1$.*;
public final class $2$ extends $3$
{
$
Macro:NodeElement
private $0$ _$1$_;
$
Macro:ListElement
private final LinkedList _$1$_ = new TypedLinkedList(new $0$_Cast());
$
Macro:ConstructorHeader
public $0$(
$
Macro:ConstructorHeaderDeclNode
$0$ _$1$_$2$
$
Macro:ConstructorHeaderDeclList
$0$ _$1$_$2$
$
Macro:ConstructorBodyHeader
)
{
$
Macro:ConstructorBodyNode
set$0$(_$1$_);
$
Macro:ConstructorBodyList
{
this._$0$_.clear();
this._$0$_.addAll(_$0$_);
}
$
Macro:ConstructorBodyQMark
if(_$2$_ instanceof X1QMark$1$)
{
set$0$(((X1QMark$1$) _$2$_).get$1$());
}
else
{
set$0$(null);
}
$
Macro:ConstructorBodyStar
while(_$0$_ instanceof X1Star$1$)
{
this._$0$_.add(((X1Star$1$) _$0$_).get$1$());
_$0$_ = ((X1Star$1$) _$0$_).getXStar$1$();
}
$
Macro:ConstructorBodyPlus
if(_$0$_ != null)
{
while(_$0$_ instanceof X1$1$)
{
this._$0$_.addFirst(((X1$1$) _$0$_).get$1$());
_$0$_ = ((X1$1$) _$0$_).getX$1$();
}
this._$0$_.addFirst(((X2$1$) _$0$_).get$1$());
}
$
Macro:ConstructorBodyTail
}
$
Macro:CloneHeader
public Object clone()
{
return new $0$(
$
Macro:CloneBodyNode
($0$) cloneNode(_$1$_)$2$
$
Macro:CloneBodyList
cloneList(_$0$_)$1$
$
Macro:CloneTail
);
}
$
Macro:Apply
public void apply(Switch sw)
{
((Analysis) sw).case$0$(this);
}
$
Macro:GetSetNode
public $0$ get$1$()
{
return _$2$_;
}
public void set$1$($0$ node)
{
if(_$2$_ != null)
{
_$2$_.parent(null);
}
if(node != null)
{
/** Error recovery.
* if(node.parent() != null) { node.parent().removeChild(node); }
*/
node.parent(this);
}
_$2$_ = node;
}
$
Macro:GetSetList
public LinkedList get$0$()
{
return _$1$_;
}
public void set$0$(List list)
{
_$1$_.clear();
_$1$_.addAll(list);
}
$
Macro:ToStringHeader
public String toString()
{
return ""
$
Macro:ToStringBodyNode
+ toString(_$0$_)
$
Macro:ToStringBodyList
+ toString(_$0$_)
$
Macro:ToStringTail
;
}
$
Macro:RemoveChildHeader
void removeChild(Node child)
{
$
Macro:RemoveChildNode
if(_$0$_ == child)
{
/** Error recovery _$0$_ = null; */
return;
}
$
Macro:RemoveChildList
if(_$0$_.remove(child))
{
return;
}
$
Macro:RemoveChildTail
}
$
Macro:ReplaceChildHeader
void replaceChild(Node oldChild, Node newChild)
{
$
Macro:ReplaceChildNode
if(_$0$_ == oldChild)
{
set$1$(($2$) newChild);
return;
}
$
Macro:ReplaceChildList
for(ListIterator i = _$0$_.listIterator(); i.hasNext();)
{
if(i.next() == oldChild)
{
if(newChild != null)
{
i.set(newChild);
oldChild.parent(null);
return;
}
i.remove();
oldChild.parent(null);
return;
}
}
$
Macro:ReplaceChildTail
}
$
Macro:Cast
// [CHANGED] Leo: Need to be able to serialize objects of this class
//private class $0$_Cast implements Cast
private class $0$_Cast implements Cast, java.io.Serializable
{
public Object cast(Object o)
{
$1$ node = ($1$) o;
/** Error recovery
*if((node.parent() != null) &&
* (node.parent() != $2$.this))
* { node.parent().removeChild(node); }
*/
if((node.parent() == null) ||
(node.parent() != $2$.this))
{
node.parent($2$.this);
}
return node;
}
}
$
Macro:AlternativeTail
}
$
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* This file is part of SableCC. *
* See the file "LICENSE" for copyright information and the *
* terms and conditions for copying, distribution and *
* modification of SableCC. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
Macro:Start
/* This file was generated by SableCC (http://www.sablecc.org/). */
package $0$;
import $1$.*;
public final class Start extends Node
{
private $2$ _$3$_;
private EOF _eof_;
public Start()
{
}
public Start(
$2$ _$3$_,
EOF _eof_)
{
set$2$(_$3$_);
setEOF(_eof_);
}
public Object clone()
{
return new Start(
($2$) cloneNode(_$3$_),
(EOF) cloneNode(_eof_));
}
public void apply(Switch sw)
{
((Analysis) sw).caseStart(this);
}
public $2$ get$2$()
{
return _$3$_;
}
public void set$2$($2$ node)
{
if(_$3$_ != null)
{
_$3$_.parent(null);
}
if(node != null)
{
/** Error recovery
* if(node.parent() != null) { node.parent().removeChild(node); }
*/
node.parent(this);
}
_$3$_ = node;
}
public EOF getEOF()
{
return _eof_;
}
public void setEOF(EOF node)
{
if(_eof_ != null)
{
_eof_.parent(null);
}
if(node != null)
{
/**
* if(node.parent() != null) { node.parent().removeChild(node); }
*/
node.parent(this);
}
_eof_ = node;
}
void removeChild(Node child)
{
if(_$3$_ == child)
{
_$3$_ = null;
return;
}
if(_eof_ == child)
{
_eof_ = null;
return;
}
}
void replaceChild(Node oldChild, Node newChild)
{
if(_$3$_ == oldChild)
{
set$2$(($2$) newChild);
return;
}
if(_eof_ == oldChild)
{
setEOF((EOF) newChild);
return;
}
}
public String toString()
{
return "" +
toString(_$3$_) +
toString(_eof_);
}
}
$
Macro:EOF
/* This file was generated by SableCC (http://www.sablecc.org/). */
package $0$;
import $1$.*;
public final class EOF extends Token
{
public EOF()
{
setText("");
}
public EOF(int line, int pos)
{
setText("");
setLine(line);
setPos(pos);
}
public Object clone()
{
return new EOF(getLine(), getPos());
}
public void apply(Switch sw)
{
((Analysis) sw).caseEOF(this);
}
}
$
Macro:Token
/* This file was generated by SableCC (http://www.sablecc.org/). */
package $0$;
public abstract class Token extends Node
{
private String text;
private int line;
private int pos;
public String getText()
{
return text;
}
public void setText(String text)
{
this.text = text;
}
public int getLine()
{
return line;
}
public void setLine(int line)
{
this.line = line;
}
public int getPos()
{
return pos;
}
public void setPos(int pos)
{
this.pos = pos;
}
public String toString()
{
return text + " ";
}
void removeChild(Node child)
{
}
void replaceChild(Node oldChild, Node newChild)
{
}
}
$
Macro:Node
/* This file was generated by SableCC (http://www.sablecc.org/). */
package $0$;
import java.util.*;
import $1$.*;
// [CHANGED] Leo: Need to be able to serialize objects of this class
//public abstract class Node implements Switchable, Cloneable
public abstract class Node implements Switchable, Cloneable, java.io.Serializable
{
private Node parent;
public abstract Object clone();
public Node parent()
{
return parent;
}
void parent(Node parent)
{
this.parent = parent;
}
abstract void removeChild(Node child);
abstract void replaceChild(Node oldChild, Node newChild);
public void replaceBy(Node node)
{
if(parent != null)
{
parent.replaceChild(this, node);
}
}
protected String toString(Node node)
{
if(node != null)
{
return node.toString();
}
return "";
}
protected String toString(List list)
{
StringBuffer s = new StringBuffer();
for(Iterator i = list.iterator(); i.hasNext();)
{
s.append(i.next());
}
return s.toString();
}
protected Node cloneNode(Node node)
{
if(node != null)
{
return (Node) node.clone();
}
return null;
}
protected List cloneList(List list)
{
List clone = new LinkedList();
for(Iterator i = list.iterator(); i.hasNext();)
{
clone.add(((Node) i.next()).clone());
}
return clone;
}
}
$
Macro:NodeCast
/* This file was generated by SableCC (http://www.sablecc.org/). */
package $0$;
public class NodeCast implements Cast
{
public final static NodeCast instance = new NodeCast();
private NodeCast()
{
}
public Object cast(Object o)
{
return (Node) o;
}
}
$
Macro:Switch
/* This file was generated by SableCC (http://www.sablecc.org/). */
package $0$;
public interface Switch
{
}
$
Macro:Switchable
/* This file was generated by SableCC (http://www.sablecc.org/). */
package $0$;
public interface Switchable
{
void apply(Switch sw);
}
$
Macro:TypedLinkedList
/* This file was generated by SableCC (http://www.sablecc.org/). */
package $0$;
// [ADDED] Leo: The following two imports where added. Needed to implement
// the Externalizable interface.
import java.io.ObjectInput;
import java.io.ObjectOutput;
import java.util.*;
// [CHANGED] Leo: If the interface Externalizable isn't implemented the
// serialization mechanisem of LinkeList is used which
// doesn't function properly for sub-classes.
//public class TypedLinkedList extends LinkedList
public class TypedLinkedList extends LinkedList implements java.io.Externalizable
{
Cast cast;
public TypedLinkedList()
{
super();
cast = NoCast.instance;
}
public TypedLinkedList(Collection c)
{
super(c);
cast = NoCast.instance;
}
public TypedLinkedList(Cast cast)
{
super();
this.cast = cast;
}
public TypedLinkedList(Collection c, Cast cast)
{
super(c);
this.cast = cast;
}
public Cast getCast()
{
return cast;
}
public void add(int index, Object element)
{
super.add(index, cast.cast(element));
}
public boolean add(Object o)
{
return super.add(cast.cast(o));
}
public boolean addAll(Collection c)
{
for(Iterator i = c.iterator(); i.hasNext(); )
{
super.add(cast.cast(i.next()));
}
return true;
}
public boolean addAll(int index, Collection c)
{
int pos = index;
for(Iterator i = c.iterator(); i.hasNext(); )
{
super.add(pos++, cast.cast(i.next()));
}
return true;
}
public void addFirst(Object o)
{
super.addFirst(cast.cast(o));
}
public void addLast(Object o)
{
super.addLast(cast.cast(o));
}
public ListIterator listIterator(int index)
{
return new TypedLinkedListIterator(super.listIterator(index));
}
private class TypedLinkedListIterator implements ListIterator
{
ListIterator iterator;
TypedLinkedListIterator(ListIterator iterator)
{
this.iterator = iterator;
}
public boolean hasNext()
{
return iterator.hasNext();
}
public Object next()
{
return iterator.next();
}
public boolean hasPrevious()
{
return iterator.hasPrevious();
}
public Object previous()
{
return iterator.previous();
}
public int nextIndex()
{
return iterator.nextIndex();
}
public int previousIndex()
{
return iterator.previousIndex();
}
public void remove()
{
iterator.remove();
}
public void set(Object o)
{
iterator.set(cast.cast(o));
}
public void add(Object o)
{
iterator.add(cast.cast(o));
}
}
//
// [ADDED] Leo: Added the following two methods to implement interface
// Externilizable
//
public synchronized void writeExternal(ObjectOutput out)
throws java.io.IOException
{
out.writeObject(cast);
LinkedList oDummy = new LinkedList(this);
out.writeObject(oDummy);
}
public synchronized void readExternal(ObjectInput in)
throws java.io.IOException, ClassNotFoundException
{
cast = (Cast)in.readObject();
this.clear();
LinkedList oDummy = (LinkedList)in.readObject();
this.addAll(oDummy);
}
}
$
Macro:Cast
/* This file was generated by SableCC (http://www.sablecc.org/). */
package $0$;
// [CHANGED] Leo: Need to be able to serialize objects of this class
//public interface Cast
public interface Cast extends java.io.Serializable
{
Object cast(Object o);
}
$
Macro:NoCast
/* This file was generated by SableCC (http://www.sablecc.org/). */
package $0$;
public class NoCast implements Cast
{
public final static NoCast instance = new NoCast();
private NoCast()
{
}
public Object cast(Object o)
{
return o;
}
}
$