Examples of ParseTreeFreeVariableCollector

ptolemy.data.expr.ParseTreeFreeVariableCollector
This class visits parse trees and collects the set of free variables in the expression. Generally speaking, free variables are any lone identifiers, and any function applications where the name of the function is valid in the scope of the expression. @author Steve Neuendorffer @version $Id: ParseTreeFreeVariableCollector.java,v 1.32 2005/07/08 19:57:32 cxh Exp $ @since Ptolemy II 2.1 @Pt.ProposedRating Red (neuendor) @Pt.AcceptedRating Red (cxh) @see ptolemy.data.expr.ASTPtRootNode

Examples of ptolemy.data.expr.ParseTreeFreeVariableCollector

        _absentDiscreteVariables = new LinkedList();
        _constructingRelationList = true;
        _errorTolerance = errorTolerance;
        _relationIndex = 0;
        _relationList = relationList;
        _variableCollector = new ParseTreeFreeVariableCollector();
    }

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Examples of ptolemy.data.expr.ParseTreeFreeVariableCollector

        _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("")) {
            Map map = parser.generateAssignmentMap(string);
            Set set /* Dead Local Store: = new HashSet()*/;


            for (Iterator names = map.keySet().iterator(); names.hasNext();) {
                String name = (String) names.next();


                ASTPtAssignmentNode node = (ASTPtAssignmentNode) map.get(name);
                parseTree = node.getExpressionTree();
                set = variableCollector.collectFreeVariables(parseTree, scope);
                getReferredInputPorts(set, _outputActionReferredInputPorts);
            }
        }
    }

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Examples of ptolemy.data.expr.ParseTreeFreeVariableCollector

        _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("")) {
            Map map = parser.generateAssignmentMap(string);
            Set set /* Dead Local Store: = new HashSet()*/;


            for (Iterator names = map.keySet().iterator(); names.hasNext();) {
                String name = (String) names.next();


                ASTPtAssignmentNode node = (ASTPtAssignmentNode) map.get(name);
                parseTree = node.getExpressionTree();
                set = variableCollector.collectFreeVariables(parseTree, scope);
                getReferredInputPorts(set, _setActionReferredInputPorts);
            }
        }
    }

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Examples of ptolemy.data.expr.ParseTreeFreeVariableCollector

                        + 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);
        }


        return transitionsReferredInputPorts;
    }

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Examples of ptolemy.data.expr.ParseTreeFreeVariableCollector

                            // value dependents (if any) are notified of
                            // the new value, and so that attributeChanged()
                            // is called on the actor.
                            parameter.validate();
                        } catch (IllegalActionException ex) {
                            ParseTreeFreeVariableCollector collector = new ParseTreeFreeVariableCollector();
                            Set expressionVariables = collector
                                    .collectFreeVariables(parseTree);
                            Set scopeVariables = _scope.identifierSet();
                            List<String> excludedVariables = new LinkedList<String>();
                            for (Object variable : expressionVariables) {
                                if (variable instanceof String) {
                                    if (!scopeVariables.contains(variable)) {
                                        excludedVariables
                                                .add((String) variable);
                                    }
                                }
                            }
                            ParseTreeSpecializer specializer = new ParseTreeSpecializer();
                            parseTree = specializer.specialize(parseTree,
                                    excludedVariables, _scope);
                            ParseTreeWriter writer = new ParseTreeWriter();
                            String outputExpression = writer
                                    .printParseTree(parseTree);
                            parameter.setExpression(outputExpression);
                        }
                    } catch (ClassCastException ex) {
                        Settable parameter = (Settable) actor
                                .getAttribute(parameterName);
                        ParseTreeFreeVariableCollector collector = new ParseTreeFreeVariableCollector();
                        Set expressionVariables = collector
                                .collectFreeVariables(parseTree);
                        Set scopeVariables = _scope.identifierSet();
                        List<String> excludedVariables = new LinkedList<String>();
                        for (Object variable : expressionVariables) {
                            if (variable instanceof String) {

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Examples of ptolemy.data.expr.ParseTreeFreeVariableCollector

        set.removeAll(variableNames);


        // Iterate over all the variables of this container, and add in
        // any free variables they reference.
        PtParser parser = new PtParser();
        ParseTreeFreeVariableCollector collector = new ParseTreeFreeVariableCollector();


        for (Iterator variables = model.attributeList(Variable.class)
                .iterator(); variables.hasNext();) {
            Variable variable = (Variable) variables.next();
            String expression = variable.getExpression();
            ASTPtRootNode root;


            if (variable.isStringMode()) {
                root = parser.generateStringParseTree(expression);
            } else {
                root = parser.generateParseTree(expression);
            }


            Set freeIdentifiers = new HashSet(collector
                    .collectFreeVariables(root));


            // Identifiers that reference other variables in the same container
            // are bound, not free.
            Set tempSet = new HashSet(variableNames);

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Examples of ptolemy.data.expr.ParseTreeFreeVariableCollector


        // Get the free variables of the function definition.  These
        // will be turned into constructor arguments of the class
        // representing the function closure.  This takes the role of
        // Specialization of parse trees.
        ParseTreeFreeVariableCollector collector = new ParseTreeFreeVariableCollector();
        List freeVariableList = new LinkedList(collector
                .collectFreeVariables(node));
        Collections.sort(freeVariableList);
        System.out.println("freeVariableList = " + freeVariableList);


        // Infer the type of the function.

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