Package ptolemy.data.expr

Class ASTPtSumNode

java.lang.Object

ptolemy.data.expr.ASTPtRootNode

ptolemy.data.expr.ASTPtSumNode

All Implemented Interfaces:

java.lang.Cloneable, Node

public class ASTPtSumNode
extends ASTPtRootNode

The parse tree created from the expression string consists of a hierarchy of node objects. This class represents sum(+, -) nodes in the parse tree.

Since:

Ptolemy II 0.2

Version:

$Id$

Author:

Neil Smyth, Steve Neuendorffer

See Also:

ASTPtRootNode, PtParser, Token

Pt.AcceptedRating:

Red (cxh)

Pt.ProposedRating:

Yellow (nsmyth)

Field Summary

Fields

Modifier and Type	Field	Description
protected java.util.ArrayList<Token>	_lexicalTokens

Fields inherited from class ptolemy.data.expr.ASTPtRootNode

_children, _id, _isConstant, _parent, _ptToken, _ptType

Constructor Summary

Constructors

Constructor	Description
ASTPtSumNode(int id)
ASTPtSumNode(PtParser p, int id)

Method Summary

Modifier and Type	Method	Description
java.lang.Object	clone()	Clone the parse tree node by invoking the clone() method of the base class.
java.util.List<Token>	getLexicalTokenList()	Return the list of lexical tokens that were used to make this node.
boolean	isCongruent(ASTPtRootNode node, java.util.Map renaming)	Return true if this node is (hierarchically) congruent to the given node, under the given renaming of bound identifiers.
void	jjtClose()	Close this node.
void	visit(ParseTreeVisitor visitor)	Traverse this node with the given visitor.

Methods inherited from class ptolemy.data.expr.ASTPtRootNode

displayParseTree, evaluateParseTree, getToken, getType, isConstant, isEvaluated, jjtAddChild, jjtGetChild, jjtGetNumChildren, jjtGetParent, jjtOpen, jjtSetParent, setConstant, setToken, setType, toString, toString

Methods inherited from class java.lang.Object

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

Field Detail

_lexicalTokens

protected java.util.ArrayList<Token> _lexicalTokens

Constructor Detail

ASTPtSumNode

public ASTPtSumNode(int id)

ASTPtSumNode

public ASTPtSumNode(PtParser p,
                    int id)

Method Detail

clone

public java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Clone the parse tree node by invoking the clone() method of the base class. The new node copies the list of operators (+, -) represented by this node.

Overrides:

clone in class ASTPtRootNode

Returns:

A new parse tree node.

Throws:

java.lang.CloneNotSupportedException - If the superclass clone() method throws it.

getLexicalTokenList

public java.util.List<Token> getLexicalTokenList()

Return the list of lexical tokens that were used to make this node.

Returns:

The list of lexical tokens that were used to make this node.

isCongruent

public boolean isCongruent(ASTPtRootNode node,
                           java.util.Map renaming)

Return true if this node is (hierarchically) congruent to the given node, under the given renaming of bound identifiers. Derived classes should extend this method to add additional necessary congruency checks.

Overrides:

isCongruent in class ASTPtRootNode

Parameters:

node - The node to compare to.

renaming - A map from String to String that gives a renaming from identifiers in this node to identifiers in the given node.

Returns:

True if the node is congruent.

jjtClose

public void jjtClose()

Close this node.

Specified by:

jjtClose in interface Node

Overrides:

jjtClose in class ASTPtRootNode

visit

public void visit(ParseTreeVisitor visitor)
           throws IllegalActionException

Traverse this node with the given visitor.

Overrides:

visit in class ASTPtRootNode

Parameters:

visitor - The visitor.

Throws:

IllegalActionException - Always thrown in this base class the visit() method is not implemented here.