Examples of ptolemy.data.expr.Variable$VariableScope

ptolemy.data.expr.Variable
Scope implementation with local caching.

     *  @exception IllegalActionException If the parameter cannot
     *   contain the specified value.
     */
    private static void _setOrCreate(NamedObj container, String name,
            String value) throws IllegalActionException {
        Variable parameter = (Variable) container.getAttribute(name);


        if (parameter == null) {
            // Parameter does not exist, so create it.
            try {
                parameter = new Variable(container, name);
                parameter.setVisibility(Settable.NOT_EDITABLE);
                parameter.setPersistent(false);
            } catch (KernelException ex) {
                // Should not occur.
                throw new InternalErrorException(ex.toString());
            }
        }


        parameter.setToken(new StringToken(value));
    }

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                    }


                    if (showRate) {
                        // Infer the rate.  See DFUtilities.
                        String rateString = "";
                        Variable rateParameter = null;


                        if (((IOPort) port).isInput()) {
                            rateParameter = (Variable) port
                                    .getAttribute("tokenConsumptionRate");


                            if (rateParameter == null) {
                                String altName = "_tokenConsumptionRate";
                                rateParameter = (Variable) port
                                        .getAttribute(altName);
                            }
                        } else if (((IOPort) port).isOutput()) {
                            rateParameter = (Variable) port
                                    .getAttribute("tokenProductionRate");


                            if (rateParameter == null) {
                                String altName = "_tokenProductionRate";
                                rateParameter = (Variable) port
                                        .getAttribute(altName);
                            }
                        }


                        if (rateParameter != null) {
                            try {
                                rateString = rateParameter.getToken()
                                        .toString();
                            } catch (KernelException ex) {
                                // Ignore.
                            }
                        }

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                        // A method invocation with a null base is bogus,
                        // so don't create a type constraint.
                    }


                    if (attribute instanceof Variable) {
                        Variable parameter = (Variable) attribute;


                        if (methodName.equals("setToken")) {
                            // The type of the argument must be less than the
                            // type of the parameter.
                            // r.getArg(0));
                        } else if (methodName.equals("getToken")) {
                            // Return the type of the parameter.
                            _updateTypeInAssignment(leftOp,
                                    parameter.getType(), out);
                        }
                    }
                }
            } else if (rightOp instanceof ArrayRef) {
                //  System.out.println("arrayRef stmt = " + stmt);

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                return portLocal;
            }


            // Look for parameter in actor.
            Variable result = null;


            if (_entity != null) {
                result = getScopedVariable(null, _entity, name);
            }


            if (result != null) {
                // Insert code to get a ref to the variable,
                // and to get the token of that variable.
                Local containerLocal = Jimple.v().newLocal("container",
                        RefType.v(PtolemyUtilities.namedObjClass));
                _body.getLocals().add(containerLocal);


                Local attributeLocal = Jimple.v().newLocal("attribute",
                        PtolemyUtilities.attributeType);
                _body.getLocals().add(attributeLocal);


                Local tokenLocal = Jimple.v().newLocal("token",
                        PtolemyUtilities.tokenType);
                _body.getLocals().add(tokenLocal);


                Entity entityContainer = FieldsForEntitiesTransformer
                        .getEntityContainerOfObject(result);
                String deepName = result.getName(entityContainer);


                _units.insertBefore(Jimple.v().newAssignStmt(containerLocal,
                        thisLocal), _insertPoint);


                NamedObj container = _entity;

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            if (_nameToType.containsKey(name)) {
                return (ptolemy.data.type.Type) _nameToType.get(name);
            }


            Variable result = getScopedVariable(null, _entity, name);


            if (result != null) {
                return result.getType();
            } else {
                return null;


                //  throw new IllegalActionException(
                //         "The ID " + name + " is undefined.");

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            if (_nameToType.containsKey(name)) {
                return new TypeConstant((ptolemy.data.type.Type) _nameToType
                        .get(name));
            }


            Variable result = getScopedVariable(null, _entity, name);


            if (result != null) {
                return result.getTypeTerm();
            } else {
                return null;


                //  throw new IllegalActionException(
                //         "The ID " + name + " is undefined.");

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        // icon editor.
        new Location(this, "_location");


        // This must appear before lineColor or cloning could
        // fail if lineColor references it.
        _none = new Variable(this, "none");
        _none.setExpression("{1.0, 1.0, 1.0, 0.0}");


        lineWidth = new Parameter(this, "lineWidth");
        lineWidth.setTypeEquals(BaseType.DOUBLE);
        lineWidth.setExpression("1.0");

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            if (port != null) {
                return port.getType();
            }


            Variable result = getScopedVariable(null, _actor, name);


            if (result != null) {
                return (Type) result.getTypeTerm().getValue();
            }


            return null;
        }

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            if (port != null) {
                return port.getTypeTerm();
            }


            Variable result = getScopedVariable(null, _actor, name);


            if (result != null) {
                return result.getTypeTerm();
            }


            return null;
        }

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            code.append(comment("Generate variable declarations for "
                    + "modified parameters"));
            Iterator modifiedVariables = _modifiedVariables.iterator();
            while (modifiedVariables.hasNext()) {
                // SetVariable needs this to be a Variable, not a Parameter.
                Variable variable = (Variable) modifiedVariables.next();


                code.append("static "
                        + CodeGeneratorHelper.targetType(variable.getType())
                        + " " + generateVariableName(variable) + ";" + _eol);
            }
        }


        return code.toString();

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ptolemy.actor.lib.conversions.ExpressionToToken$ExpressionScope

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