Examples of ASTPtRootNode

ptolemy.data.expr.ASTPtRootNode
The parse tree created from the expression string consists of a hierarchy of node objects, each of which is an instance of a class derived from this class. This is because each node is a root node for the portion of the parse tree below it.
Each node in the parse tree stores its type and state information in a ptolemy.data.Token variable. A parent node uses the type and value of the ptolemy.data.Tokens contained in its child nodes to evaluate the type and value of the ptolemy.data.Token it should contain.
When a node has more than one child nodes, the lexical tokens relating the child nodes are stored in the parent node. Thus if we parsed a string such as "2+4-9", the child nodes would be leaf nodes containing ptolemy.data.Token's with values 2, 4 and 9, and the parent node would store the lexical tokens representing the "+" and the "-".
The tree is evaluated in a top down manner, calling evaluateParseTree() on the children of each node before resolving the type of the current node. @author Neil Smyth @version $Id: ASTPtRootNode.java,v 1.75 2005/07/08 19:57:27 cxh Exp $ @since Ptolemy II 0.2 @Pt.ProposedRating Yellow (nsmyth) @Pt.AcceptedRating Red (cxh) @see ptolemy.data.expr.PtParser @see ptolemy.data.Token

Examples of ptolemy.data.expr.ASTPtRootNode

                            return true;
                        } else if (cellValue.equals("pointer")) {
                            return true;
                        }


                        ASTPtRootNode tree = _typeParser
                                .generateParseTree(cellValue);
                        /* Token result = */_parseTreeEvaluator
                                .evaluateParseTree(tree, null);
                    } catch (IllegalActionException e) {
                        setMessage(e.getMessage());

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Examples of ptolemy.data.expr.ASTPtRootNode

            while (destinations.hasNext()) {
                NamedObj nextDestination = (NamedObj) destinations.next();


                // Need to get the next channel even if it's not used.
                Integer channel = (Integer) channels.next();
                ASTPtRootNode parseTree = (ASTPtRootNode) parseTrees.next();
                Token token;


                // In MultirateFSMDirector, the initial transition from
                // the initial state is taken during preinitialize() if
                // the initial state does not have a refinement, therefore

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Examples of ptolemy.data.expr.ASTPtRootNode

            throws IllegalActionException {
        _outputActionReferredInputPorts.clear();


        String string = transition.outputActions.getExpression();
        PtParser parser = new PtParser();
        ASTPtRootNode parseTree;
        ParseTreeFreeVariableCollector variableCollector = new ParseTreeFreeVariableCollector();
        FSMActor controller = getController();
        ParserScope scope = controller.getPortScope();


        if (!string.equals("")) {

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Examples of ptolemy.data.expr.ASTPtRootNode

            throws IllegalActionException {
        _setActionReferredInputPorts.clear();


        String string = transition.setActions.getExpression();
        PtParser parser = new PtParser();
        ASTPtRootNode parseTree;
        ParseTreeFreeVariableCollector variableCollector = new ParseTreeFreeVariableCollector();
        FSMActor controller = getController();
        ParserScope scope = controller.getPortScope();


        if (!string.equals("")) {

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Examples of ptolemy.data.expr.ASTPtRootNode

                throw new IllegalActionException(this, "guard expression on "
                        + transition.getName() + "is null!");
            }


            PtParser parser = new PtParser();
            ASTPtRootNode parseTree = parser.generateParseTree(string);
            ParseTreeFreeVariableCollector variableCollector = new ParseTreeFreeVariableCollector();
            FSMActor controller = getController();
            ParserScope scope = controller.getPortScope();
            Set set = variableCollector.collectFreeVariables(parseTree, scope);
            getReferredInputPorts(set, transitionsReferredInputPorts);

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Examples of ptolemy.data.expr.ASTPtRootNode

                    if ((term != this) && (term.getValue() == BaseType.UNKNOWN)) {
                        return BaseType.UNKNOWN;
                    }
                }


                ASTPtRootNode parseTree = (ASTPtRootNode) _parseTrees
                        .get(_destinationNames.indexOf(_name));


                if (_scope == null) {
                    FSMActor fsmActor = (FSMActor) getContainer()
                            .getContainer();

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Examples of ptolemy.data.expr.ASTPtRootNode

        public InequalityTerm[] getVariables() {
            // Return an array that contains type terms for all of the
            // inputs and all of the parameters that are free variables for
            // the expression.
            try {
                ASTPtRootNode parseTree = (ASTPtRootNode) _parseTrees
                        .get(_destinationNames.indexOf(_name));


                if (_scope == null) {
                    FSMActor fsmActor = (FSMActor) getContainer()
                            .getContainer();

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Examples of ptolemy.data.expr.ASTPtRootNode

     *  @exception IllegalActionException If the string does not
     *  contain a parsable record.
     */
    public RecordToken(String init) throws IllegalActionException {
        PtParser parser = new PtParser();
        ASTPtRootNode tree = parser.generateParseTree(init);


        ParseTreeEvaluator evaluator = new ParseTreeEvaluator();
        Token token = evaluator.evaluateParseTree(tree);


        if (token instanceof RecordToken) {

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Examples of ptolemy.data.expr.ASTPtRootNode

     *  @exception IllegalActionException If the string does not
     *  contain a parsable record.
     */
    public UnionToken(String init) throws IllegalActionException {
        PtParser parser = new PtParser();
        ASTPtRootNode tree = parser.generateParseTree(init);


        ParseTreeEvaluator evaluator = new ParseTreeEvaluator();
        Token token = evaluator.evaluateParseTree(tree);


        if (token instanceof UnionToken) {

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Examples of ptolemy.data.expr.ASTPtRootNode

        if (command.trim().equals("")) {
            return "";
        }


        PtParser parser = new PtParser();
        ASTPtRootNode node = parser.generateSimpleAssignmentParseTree(command);
        String targetName = null;


        // Figure out if we got an assignment... if so, then get the
        // identifier name and only evaluated the expression part.
        if (node instanceof ASTPtAssignmentNode) {

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