Examples of ptolemy.data.expr.ParseTreeEvaluator.evaluateParseTree()

Class ptolemy.data.expr.ParseTreeEvaluator

Examples of ptolemy.data.expr.ParseTreeEvaluator.evaluateParseTree()

ptolemy.data.expr.ParseTreeEvaluator.evaluateParseTree()
Evaluate the parse tree with the specified root node. @param node The root of the parse tree. @return The result of evaluation. @exception IllegalActionException If an evaluation error occurs.

            } catch (IllegalActionException ex) {
                throw new IllegalActionException(this, ex,
                        "Failed to parse guard expression \"" + expr + "\"");
            }
        }
        Token token = parseTreeEvaluator.evaluateParseTree(_guardParseTree,
                fsmActor.getPortScope());
        if (token == null) {
            // FIXME: when could this happen??
            return false;
        }

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    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) {
            RecordToken recordToken = (RecordToken) token;
            Object[] labelObjects = recordToken.labelSet().toArray();
            String[] labels = new String[labelObjects.length];

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    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) {
            UnionToken unionToken = (UnionToken) token;
            _label = unionToken.label();
            _value = unionToken.value();

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                    if (parameter == null) {
                        String uniqueName = actor.uniqueName(parameterName);
                        parameter = new PtalonExpressionParameter(actor,
                                uniqueName);
                    }
                    Token result = _parseTreeEvaluator.evaluateParseTree(
                            _parseTree, _scope);
                    parameter.setToken(result);
                    // Validate the parameter to ensure that any value
                    // dependents are notified.
                    parameter.validate();

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                            } else {
                                parameter = new Parameter(actor, uniqueName);
                            }
                        }
                        try {
                            Token result = _parseTreeEvaluator
                                    .evaluateParseTree(parseTree, _scope);
                            parameter.setToken(result);
                            // We have to validate the parameter so that
                            // value dependents (if any) are notified of
                            // the new value, and so that attributeChanged()

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     */
    public ArrayToken(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 ArrayToken) {
            _value = ((ArrayToken) token)._value;
            _elementType = ((ArrayToken) token)._elementType;
        } else {

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        try {
            PtParser parser = new PtParser();


            ParseTreeEvaluator _parseTreeEvaluator = new ParseTreeEvaluator();
            ASTPtRootNode _parseTree = parser.generateParseTree(expression);
            Token result = _parseTreeEvaluator.evaluateParseTree(_parseTree,
                    _scope);
            return result;
        } catch (Exception ex) {
            throw new PtalonRuntimeException("Unable to evaluate expression\n"
                    + expression, ex);

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    public String evaluateString(String expression) {
        try {
            PtParser parser = new PtParser();
            ParseTreeEvaluator _parseTreeEvaluator = new ParseTreeEvaluator();
            ASTPtRootNode _parseTree = parser.generateParseTree(expression);
            Token result = _parseTreeEvaluator.evaluateParseTree(_parseTree,
                    _scope);
            if (result instanceof StringToken) {
                return ((StringToken) result).stringValue();
            }
            return result.toString();

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