ptolemy.data.expr
Class ASTPtRecordConstructNode

java.lang.Object
  ptolemy.data.expr.ASTPtRootNode
      ptolemy.data.expr.ASTPtRecordConstructNode

All Implemented Interfaces:

java.lang.Cloneable, Node

Direct Known Subclasses:

ASTPtOrderedRecordConstructNode

public class ASTPtRecordConstructNode
extends ASTPtRootNode

The parse tree created from the expression string consists of a hierarchy of node objects. This class represents record construction using the following syntax: {foo = "abc", bar = 1}. The result of parsing and evaluating this expression is a record token with two fields: a field foo containing a StringToken of value "abc", and a field bar containing a IntToken of value 1.

Since:

Ptolemy II 1.0

Version:

$Id: ASTPtRecordConstructNode.java 38798 2005-07-08 20:00:01Z cxh $

Author:

Xiaojun Liu, Steve Neuendorffer

See Also:

ASTPtRootNode, PtParser, Token

Accepted Rating:

Red (cxh)

Proposed Rating:

Yellow (liuxj)

Field Summary

protected java.util.LinkedList

_fieldNames The list of field names for the record.

Fields inherited from class ptolemy.data.expr.ASTPtRootNode

_children, _id, _isConstant, _parent, _ptToken, _ptType

Constructor Summary

ASTPtRecordConstructNode(int id)

ASTPtRecordConstructNode(PtParser p, int id)

Method Summary

java.util.List	getFieldNames() Return the list of field names for this record construct.
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	visit(ParseTreeVisitor visitor) Traverse this node with the given visitor.

Methods inherited from class ptolemy.data.expr.ASTPtRootNode

clone, displayParseTree, evaluateParseTree, getToken, getType, isConstant, isEvaluated, jjtAddChild, jjtClose, 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

_fieldNames

protected java.util.LinkedList _fieldNames

The list of field names for the record.

Constructor Detail

ASTPtRecordConstructNode

public ASTPtRecordConstructNode(int id)

ASTPtRecordConstructNode

public ASTPtRecordConstructNode(PtParser p,
                                int id)

Method Detail

getFieldNames

public java.util.List getFieldNames()

Return the list of field names for this record construct. The order of the list is not meaningful.

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.

visit

public void visit(ParseTreeVisitor visitor)
           throws IllegalActionException

Traverse this node with the given visitor.

Overrides:

visit in class ASTPtRootNode

Throws:

IllegalActionException