Examples of ptolemy.domains.fsm.kernel.AbstractActionsAttribute

ptolemy.domains.fsm.kernel.AbstractActionsAttribute
A base class for actions with semicolon delimited lists of commands.
The value of this attribute is a semicolon separated list of commands, where each command gives a destination to send data to and a value to send. The actions are given by calling setExpression() with a string of the form:
```
 command; command; ... 
```
where each command has the form:
```
 destination = expression 
```
where destination is either
```
 name 
```
or
```
 name(number) 
```
The expression is a string giving an expression in the usual Ptolemy II expression language. The expression may include references to variables and parameters contained by the FSM actor. @author Xiaojun Liu and Edward A. Lee @version $Id: AbstractActionsAttribute.java,v 1.63 2007/12/06 18:29:19 cxh Exp $ @since Ptolemy II 1.0 @Pt.ProposedRating Yellow (eal) @Pt.AcceptedRating Red (eal) @see CommitActionsAttribute @see Transition @see FSMActor

                            IntConstant.v(nextStateIndex)));


                    // Generate code for the outputExpression of the guard.
                    for (Iterator actions = transition.choiceActionList()
                            .iterator(); actions.hasNext();) {
                        AbstractActionsAttribute action = (AbstractActionsAttribute) actions
                                .next();
                        System.out.println("action = " + action);
                        _generateActionCode(entity, entityInstanceClass,
                                nameToField, nameToType, body, action);
                    }


                    units.add(skipStmt);
                }


                units.add(Jimple.v().newGotoStmt(finishedStmt));
            }


            units.add(errorStmt);


            // throw an exception.
            units.add(finishedStmt);


            Local exceptionLocal = SootUtilities.createRuntimeException(body,
                    errorStmt, "state error");
            units.insertBefore(Jimple.v().newThrowStmt(exceptionLocal),
                    errorStmt);


            // Store the next state.
            units.add(Jimple.v().newAssignStmt(
                    Jimple.v().newInstanceFieldRef(thisLocal,
                            currentStateField.makeRef()), nextStateLocal));


            // And the next Transition.
            units.add(Jimple.v()
                    .newAssignStmt(
                            Jimple.v().newInstanceFieldRef(thisLocal,
                                    nextTransitionField.makeRef()),
                            nextTransitionLocal));


            // return void
            units.add(Jimple.v().newReturnVoidStmt());


            LocalNameStandardizer.v().transform(body, "at.lns");
            LocalSplitter.v().transform(body, "at.ls");
        }
        // populate the postfire method.
        {
            System.out.println("create postfire()");


            SootMethod postfireMethod = new SootMethod("postfire",
                    Collections.EMPTY_LIST, BooleanType.v(), Modifier.PUBLIC);
            entityInstanceClass.addMethod(postfireMethod);


            JimpleBody body = Jimple.v().newBody(postfireMethod);
            postfireMethod.setActiveBody(body);
            body.insertIdentityStmts();


            Chain units = body.getUnits();
            Local thisLocal = body.getThisLocal();


            Map transitionToStartStmt = new HashMap();
            List transitionStmtList = new LinkedList();
            int numberOfTransitions = entity.relationList().size();


            // Figure out what transition we are in.
            for (Iterator transitions = entity.relationList().iterator(); transitions
                    .hasNext();) {
                Transition transition = (Transition) transitions.next();
                Stmt startStmt = Jimple.v().newNopStmt();


                transitionToStartStmt.put(transition, startStmt);
                transitionStmtList.add(startStmt);
            }


            Local nextTransitionLocal = Jimple.v().newLocal(
                    "nextTransitionLocal", IntType.v());
            body.getLocals().add(nextTransitionLocal);


            units.add(Jimple.v().newAssignStmt(
                    nextTransitionLocal,
                    Jimple.v().newInstanceFieldRef(thisLocal,
                            nextTransitionField.makeRef())));


            Stmt finishedStmt = Jimple.v().newNopStmt();
            Stmt errorStmt = Jimple.v().newNopStmt();


            // Get the current transition..
            units.add(Jimple.v().newTableSwitchStmt(nextTransitionLocal, 0,
                    numberOfTransitions - 1, transitionStmtList, errorStmt));


            // Generate code for each transition
            for (Iterator transitions = entity.relationList().iterator(); transitions
                    .hasNext();) {
                Transition transition = (Transition) transitions.next();
                Stmt startStmt = (Stmt) transitionToStartStmt.get(transition);
                units.add(startStmt);


                // Generate code for the commitExpression of the guard.
                for (Iterator actions = transition.commitActionList()
                        .iterator(); actions.hasNext();) {
                    AbstractActionsAttribute action = (AbstractActionsAttribute) actions
                            .next();
                    _generateActionCode(entity, entityInstanceClass,
                            nameToField, nameToType, body, action);
                }

View Full Code Here

            codeBuffer.append(") {" + _eol);


            // generate code for commit action
            Iterator actions = transition.commitActionList().iterator();
            while (actions.hasNext()) {
                AbstractActionsAttribute action = (AbstractActionsAttribute) actions
                        .next();
                Iterator destinationNameList = action.getDestinationNameList()
                        .iterator();


                while (destinationNameList.hasNext()) {
                    String destinationName = (String) destinationNameList
                            .next();
                    NamedObj destination = action
                            .getDestination(destinationName);
                    ASTPtRootNode parseTree = action
                            .getParseTree(destinationName);
                    if (destination instanceof Variable) {
                        codeBuffer.append(_codeGenerator
                                .generateVariableName((Variable) destination)
                                + " = ");

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                // generate code for choice action
                Iterator actions = transition.choiceActionList().iterator();


                while (actions.hasNext()) {
                    AbstractActionsAttribute action = (AbstractActionsAttribute) actions
                            .next();
                    Iterator destinationNameList = action
                            .getDestinationNameList().iterator();
                    Iterator channelNumberList = action.getChannelNumberList()
                            .iterator();
                    Iterator parseTreeList = action.getParseTreeList()
                            .iterator();


                    while (destinationNameList.hasNext()) {
                        String destinationName = (String) destinationNameList
                                .next();
                        Integer channelNumber = (Integer) channelNumberList
                                .next();
                        ASTPtRootNode parseTree = (ASTPtRootNode) parseTreeList
                                .next();
                        NamedObj destination = action
                                .getDestination(destinationName);


                        int channel = -1;
                        if (channelNumber != null) {
                            channel = channelNumber.intValue();
                        }


                        codeBuffer.append(_getIndentPrefix(depth));


                        // Note in choice action only output can be generated
                        // and no parameter be changed.
                        if (channel >= 0) {
                            codeBuffer.append("$ref(" + destinationName + "#"
                                    + channel + ") = ");


                            // During choice action, an output port
                            // receives token sent by itself when it
                            // is also an input port, i.e., when this
                            // FSMActor is used as a modal controller.


                            if (((IOPort) destination).isInput()) {
                                ComponentCodeGenerator containerHelper = _getHelper(((IOPort) destination)
                                        .getContainer().getContainer());
                                StringBuffer containerReference = new StringBuffer();


                                containerReference.append("$ref("
                                        + destination.getName());


                                if (((IOPort) destination).isMultiport()) {
                                    containerReference.append("#" + channel);
                                }


                                containerReference.append(")");


                                codeBuffer
                                        .append(((CodeGeneratorHelper) containerHelper)
                                                .processCode(containerReference
                                                        .toString())
                                                + " = ");
                            }
                        } else { // broadcast


                            int width = ((IOPort) action
                                    .getDestination(destinationName))
                                    .getWidth();


                            for (int i = 0; i < width; i++) {
                                codeBuffer.append("$ref(" + destinationName
                                        + "#" + i + ") = ");


                                // During choice action, an output
                                // port receives token sent by itself
                                // when it is also an input port,
                                // i.e., when this FSMActor is used as
                                // a modal controller.


                                if (((IOPort) destination).isInput()) {
                                    ComponentCodeGenerator containerHelper = _getHelper(((IOPort) destination)
                                            .getContainer().getContainer());
                                    StringBuffer containerReference = new StringBuffer();


                                    containerReference.append("$ref("
                                            + destination.getName());


                                    if (((IOPort) destination).isMultiport()) {
                                        containerReference.append("#" + i);
                                    }


                                    containerReference.append(")");


                                    codeBuffer
                                            .append(((CodeGeneratorHelper) containerHelper)
                                                    .processCode(containerReference
                                                            .toString())
                                                    + " = ");
                                }
                            }
                        }


                        ParseTreeCodeGenerator parseTreeCodeGenerator = getParseTreeCodeGenerator();
                        parseTreeCodeGenerator.evaluateParseTree(parseTree,
                                _scope);
                        codeBuffer.append(parseTreeCodeGenerator
                                .generateFireCode());
                        codeBuffer.append(";" + _eol);
                    }
                }


                boolean inline = ((BooleanToken) _codeGenerator.inline
                        .getToken()).booleanValue();


                // generate code for transition refinement
                Actor[] actors = transition.getRefinement();


                if (actors != null) {
                    for (int i = 0; i < actors.length; i++) {
                        CodeGeneratorHelper helper = (CodeGeneratorHelper) _getHelper((NamedObj) actors[i]);
                        // fire the actor
                        if (inline) {
                            codeBuffer.append(helper.generateFireCode());
                            codeBuffer.append(helper
                                    .generateTypeConvertFireCode());
                        } else {
                            codeBuffer
                                    .append(generateName((NamedObj) actors[i])
                                            + "();" + _eol);
                        }
                    }
                }


                // generate code for commit action
                actions = transition.commitActionList().iterator();


                while (actions.hasNext()) {
                    AbstractActionsAttribute action = (AbstractActionsAttribute) actions
                            .next();
                    Iterator destinationNameList = action
                            .getDestinationNameList().iterator();
                    Iterator channelNumberList = action.getChannelNumberList()
                            .iterator();
                    Iterator parseTreeList = action.getParseTreeList()
                            .iterator();


                    while (destinationNameList.hasNext()) {
                        String destinationName = (String) destinationNameList
                                .next();
                        Integer channelNumber = (Integer) channelNumberList
                                .next();
                        ASTPtRootNode parseTree = (ASTPtRootNode) parseTreeList
                                .next();
                        NamedObj destination = action
                                .getDestination(destinationName);


                        int channel = -1;
                        if (channelNumber != null) {
                            channel = channelNumber.intValue();
                        }


                        codeBuffer.append(_getIndentPrefix(depth));


                        if (destination instanceof IOPort) {
                            if (channel >= 0) {
                                codeBuffer.append("$ref(" + destinationName
                                        + "#" + channel + ") = ");
                            } else { // broadcast


                                int width = ((IOPort) action
                                        .getDestination(destinationName))
                                        .getWidth();


                                for (int i = 0; i < width; i++) {
                                    codeBuffer.append("$ref(" + destinationName

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