Examples with IfThenElse verdict.vdm.vdm_lustre.IfThenElse used on opensource projects

Example 1 with IfThenElse

use of verdict.vdm.vdm_lustre.IfThenElse in project VERDICT by ge-high-assurance.

the class VDMInstrumentor method instrument_link.

// public void instrument_link(Connection connection) {
// // Connection Source
// ConnectionEnd src = connection.getSource();
// 
// // Connection Destination
// ConnectionEnd dest = connection.getDestination();
// 
// // Source Component
// Port src_port = src.getComponentPort();
// // Destination Component
// Port dest_port = dest.getComponentPort();
// 
// if (src_port == null && dest_port == null) {
// // Both are sub-compon
// System.out.println("Both are subcomponents.");
// }
// if (src_port == null && dest_port != null) {
// // Only one is Subcomponent
// System.out.println(dest_port.getId() + " -- " + dest_port.getName());
// }
// if (src_port != null && dest_port == null) {
// // One Subcomponent
// System.out.println(src_port.getId() + " -- " + src_port.getName());
// }
// }
// public void create_link(Connection old_channel, ComponentInstance
// src_componentInstance,
// ComponentInstance dest_componentInstance) {
// 
// ComponentInstance instrumented_componentInstance = new ComponentInstance();
// 
// String component_ID = src_componentInstance.getName() + "_Inst_" +
// dest_componentInstance.getName();
// instrumented_componentInstance.setId(component_ID + "_Instance");
// instrumented_componentInstance.setName(component_ID);
// 
// instrumented_componentInstance.setSpecification(value);
// instrumented_componentInstance.setImplementation(value);
// 
// ComponentType instrumented_component = new ComponentType();
// instrumented_component.setId(component_ID);
// instrumented_component.setName(component_ID);
// 
// 
// 
// Connection inst_channel = new Connection();
// 
// //Update Old connection Destination
// old_channel.setDestination(value);
// 
// //Add New Connection Source
// inst_channel.setSource(value);
// //Add New Connection Destination
// inst_channel.setDestination(value);
// 
// 
// }
public String instrument_link(String compID, Connection connection, BlockImpl blockImpl) {
    // instrument_link(connection);
    // System.out.println("Instrumented Link ***" + connection.getName());
    // Default Block Implementation
    ComponentImpl compImpl = null;
    if (compID != null) {
        compImpl = retrieve_cmp_impl(compID);
    }
    // Connections without Components Instrumentation.
    if (compImpl == null) {
        compImpl = retrieve_main_cmp_impl();
    }
    ComponentType instrumented_cmp = new ComponentType();
    // R.H.S
    ConnectionEnd src = connection.getSource();
    ComponentInstance src_componentInstance = new ComponentInstance();
    // Source Connection
    Port src_port = src.getComponentPort();
    if (src_port != null) {
        String identifier = compImpl.getId();
        // identifier = identifier.replace(".I", "_I");
        identifier = identifier.replace(".", "_dot_");
        identifier = identifier.replace("::", "_double_colon_");
        src_componentInstance.setId(identifier);
        src_componentInstance.setName(identifier);
        src_componentInstance.setImplementation(compImpl);
    }
    // if (src_port == instrumented_port) {
    CompInstancePort compInstancePort = src.getSubcomponentPort();
    if (compInstancePort != null) {
        src_componentInstance = compInstancePort.getSubcomponent();
        src_port = compInstancePort.getPort();
    }
    // R.H.S
    ConnectionEnd dest = connection.getDestination();
    ComponentInstance dest_componentInstance = new ComponentInstance();
    // Source Connection
    Port dest_port = dest.getComponentPort();
    if (dest_port != null) {
        String identifier = compImpl.getId();
        // identifier = identifier.replace(".I", "_I");
        identifier = identifier.replace(".", "_dot_");
        identifier = identifier.replace("::", "_double_colon_");
        dest_componentInstance.setId(identifier);
        dest_componentInstance.setName(identifier);
        dest_componentInstance.setImplementation(compImpl);
    }
    // if (dest_port == instrumented_port) {
    compInstancePort = dest.getSubcomponentPort();
    if (compInstancePort != null) {
        dest_componentInstance = compInstancePort.getSubcomponent();
        dest_port = compInstancePort.getPort();
    }
    String instrument_cmp_Id = src_componentInstance.getName() + "_Inst_" + dest_componentInstance.getName() + "_port_" + dest_port.getName();
    instrument_cmp_Id = instrument_cmp_Id.replace(".", "_dot_");
    // Setting Component IDs
    instrumented_cmp.setId(instrument_cmp_Id);
    instrumented_cmp.setName(instrument_cmp_Id);
    // output port
    Port instrumented_port_dest = new Port();
    instrumented_port_dest.setId(dest_port.getId());
    instrumented_port_dest.setName(dest_port.getName());
    instrumented_port_dest.setMode(dest_port.getMode());
    instrumented_port_dest.setType(dest_port.getType());
    if (dest_port.isEvent() != null && dest_port.isEvent()) {
        instrumented_port_dest.setEvent(true);
    } else {
        instrumented_port_dest.setEvent(false);
    }
    instrumented_cmp.getPort().add(instrumented_port_dest);
    // Input port
    Port instrumented_port_src = new Port();
    instrumented_port_src.setId(src_port.getId());
    instrumented_port_src.setName(src_componentInstance + "_port_" + src_port.getName());
    instrumented_port_src.setMode(src_port.getMode());
    if (src_port.isEvent() != null && src_port.isEvent()) {
        instrumented_port_src.setEvent(true);
    } else {
        instrumented_port_src.setEvent(false);
    }
    String global_constant_Id = src_componentInstance.getName();
    if (instrumented_port_src.getMode() == instrumented_port_dest.getMode()) {
        instrumented_port_src.setName(src_port.getName());
        if (instrumented_port_src.getMode() == PortMode.IN) {
            instrumented_port_src.setMode(PortMode.OUT);
        } else {
            instrumented_port_dest.setMode(PortMode.IN);
        }
    } else {
        instrumented_port_src.setName(src_port.getName());
    }
    if (dest_port.getMode() == PortMode.OUT) {
        global_constant_Id += "_port_" + dest_port.getName() + "_instrumented";
    } else {
        global_constant_Id += "_port_" + src_port.getName() + "_instrumented";
    }
    instrumented_port_src.setType(dest_port.getType());
    instrumented_cmp.getPort().add(instrumented_port_src);
    vdm_model.getComponentType().add(instrumented_cmp);
    // Modify connection.
    ConnectionEnd con_end_inst = new ConnectionEnd();
    // instrumentd_port.setPort(value);
    ComponentInstance instrumented_compInstance = new ComponentInstance();
    instrumented_compInstance.setId(connection.getName());
    instrumented_compInstance.setName(connection.getName());
    instrumented_compInstance.setSpecification(instrumented_cmp);
    // -----------------------------------------
    // Adding Auxiliary Node.
    NodeCall nodeCall = new NodeCall();
    nodeCall.setNodeId(instrumented_cmp.getId());
    Expression callExpr = new Expression();
    callExpr.setCall(nodeCall);
    ContractItem true_guarantee_item = new ContractItem();
    // true_guarantee_item.setName("true");
    Expression true_expr = new Expression();
    Boolean true_lit = Boolean.TRUE;
    true_expr.setBoolLiteral(true_lit);
    true_guarantee_item.setExpression(true_expr);
    ContractSpec contractSpec = new ContractSpec();
    contractSpec.getGuarantee().add(true_guarantee_item);
    // ---------------------------------------------
    ComponentImpl instrument_compImpl = new ComponentImpl();
    instrument_compImpl.setId(instrumented_cmp.getId() + "_dot_impl");
    instrument_compImpl.setName(instrumented_cmp.getName() + "_dot_Impl");
    instrument_compImpl.setType(instrumented_cmp);
    IfThenElse ifelse = new IfThenElse();
    // Condition
    Expression cond_expr = new Expression();
    global_constant_Id = global_constant_Id.replace(".", "_dot_");
    cond_expr.setIdentifier(global_constant_Id);
    ifelse.setCondition(cond_expr);
    // Then
    Expression then_arg = new Expression();
    then_arg.setIdentifier(dest_port.getName());
    ifelse.setThenBranch(callExpr);
    // Else
    Expression else_arg = new Expression();
    else_arg.setIdentifier(dest_port.getName());
    nodeCall.getArgument().add(else_arg);
    ifelse.setElseBranch(then_arg);
    Expression instrumented_expr = new Expression();
    instrumented_expr.setConditionalExpression(ifelse);
    NodeEquation n_eq = new NodeEquation();
    NodeEquationLHS neq_lhs = new NodeEquationLHS();
    neq_lhs.getIdentifier().add(src_port.getName() + "_instrumented");
    n_eq.setLhs(neq_lhs);
    n_eq.setRhs(instrumented_expr);
    NodeBody nodeBody = new NodeBody();
    // VariableDeclaration cond_var = new VariableDeclaration();
    // cond_var.setName(gloabal_constant_Id);
    // DataType dataType = new DataType();
    // dataType.setPlainType(PlainType.BOOL);
    // cond_var.setDataType(dataType);
    // nodeBody.getVariableDeclaration().add(cond_var);
    nodeBody.setIsMain(false);
    nodeBody.getEquation().add(n_eq);
    instrument_compImpl.setDataflowImpl(nodeBody);
    instrumented_compInstance.setImplementation(instrument_compImpl);
    vdm_model.getComponentImpl().add(instrument_compImpl);
    vdm_model.getComponentType().add(instrumented_cmp);
    // -----------------------------------------
    CompInstancePort compInstance_inst_port = new CompInstancePort();
    compInstance_inst_port.setPort(dest_port);
    compInstance_inst_port.setSubcomponent(instrumented_compInstance);
    con_end_inst.setSubcomponentPort(compInstance_inst_port);
    blockImpl.getSubcomponent().add(instrumented_compInstance);
    connection.setDestination(con_end_inst);
    Connection new_con = new Connection();
    // Copying connection related artifacts
    new_con.setName(connection.getName() + "_instrumented_channel");
    // new_con.setConnType(connection.getConnType());
    // new_con.setFlowType(connection.getFlowType());
    // 
    // new_con.setDataEncrypted(connection.isEncryptedTransmission());
    // new_con.setAuthenticated(connection.isAuthenticated());
    new_con.setSource(con_end_inst);
    compInstance_inst_port.setPort(src_port);
    new_con.setDestination(dest);
    blockImpl.getConnection().add(new_con);
    return global_constant_Id;
}

Example 2 with IfThenElse

use of verdict.vdm.vdm_lustre.IfThenElse in project VERDICT by ge-high-assurance.

the class VDM2Lustre method visitExpression.

protected Expression visitExpression(Expression expr) {
    Expression u_Expr = new Expression();
    // Binary Operators
    if (expr != null) {
        BinaryOperation op = expr.getEqual();
        if (op != null) {
            u_Expr.setEqual(binaryOP(op));
        }
        op = expr.getNotEqual();
        if (op != null) {
            u_Expr.setNotEqual(binaryOP(op));
        }
        op = expr.getImplies();
        if (op != null) {
            u_Expr.setImplies(binaryOP(op));
        }
        op = expr.getAnd();
        if (op != null) {
            u_Expr.setAnd(binaryOP(op));
        }
        op = expr.getOr();
        if (op != null) {
            u_Expr.setOr(binaryOP(op));
        }
        op = expr.getXor();
        if (op != null) {
            u_Expr.setXor(binaryOP(op));
        }
        op = expr.getArrow();
        if (op != null) {
            u_Expr.setArrow(binaryOP(op));
        }
        op = expr.getLessThanOrEqualTo();
        if (op != null) {
            u_Expr.setLessThanOrEqualTo(binaryOP(op));
        }
        op = expr.getLessThan();
        if (op != null) {
            u_Expr.setLessThan(binaryOP(op));
        }
        op = expr.getGreaterThan();
        if (op != null) {
            u_Expr.setGreaterThan(binaryOP(op));
        }
        op = expr.getGreaterThanOrEqualTo();
        if (op != null) {
            u_Expr.setGreaterThanOrEqualTo(binaryOP(op));
        }
        op = expr.getMinus();
        if (op != null) {
            u_Expr.setMinus(binaryOP(op));
        }
        op = expr.getPlus();
        if (op != null) {
            u_Expr.setPlus(binaryOP(op));
        }
        op = expr.getDiv();
        if (op != null) {
            u_Expr.setDiv(binaryOP(op));
        }
        op = expr.getTimes();
        if (op != null) {
            u_Expr.setTimes(binaryOP(op));
        }
        op = expr.getMod();
        if (op != null) {
            u_Expr.setMod(binaryOP(op));
        }
        op = expr.getCartesianExpression();
        if (op != null) {
            u_Expr.setCartesianExpression(binaryOP(op));
        }
        IfThenElse cond_op = expr.getConditionalExpression();
        if (cond_op != null) {
            Expression cond_expr = cond_op.getCondition();
            cond_expr = visitExpression(cond_expr);
            Expression then_expr = cond_op.getThenBranch();
            then_expr = visitExpression(then_expr);
            Expression else_expr = cond_op.getElseBranch();
            else_expr = visitExpression(else_expr);
            cond_op.setCondition(cond_expr);
            cond_op.setThenBranch(then_expr);
            cond_op.setElseBranch(else_expr);
            u_Expr.setConditionalExpression(cond_op);
        }
        // Record Literal
        RecordLiteral recordLiteral = expr.getRecordLiteral();
        if (recordLiteral != null) {
            Expression fieldExpr;
            for (FieldDefinition fieldDef : recordLiteral.getFieldDefinition()) {
                fieldExpr = fieldDef.getFieldValue();
                visitExpression(fieldExpr);
            }
            u_Expr.setRecordLiteral(recordLiteral);
        }
        // Record Project
        RecordProjection recordProj = expr.getRecordProjection();
        if (recordProj != null) {
            Expression recordRef = recordProj.getRecordReference();
            recordRef = visitExpression(recordRef);
            recordProj.setRecordReference(recordRef);
            u_Expr.setRecordProjection(recordProj);
        }
        // Unary Operators
        Expression notExpr = expr.getNot();
        if (notExpr != null) {
            notExpr = visitExpression(notExpr);
            u_Expr.setNot(notExpr);
        }
        Expression negExpr = expr.getNegative();
        if (negExpr != null) {
            negExpr = visitExpression(negExpr);
            u_Expr.setNegative(negExpr);
            ;
        }
        Expression preExpr = expr.getPre();
        if (preExpr != null) {
            preExpr = visitExpression(preExpr);
            u_Expr.setPre(preExpr);
        }
        Expression toIntExpr = expr.getToInt();
        if (toIntExpr != null) {
            toIntExpr = visitExpression(toIntExpr);
            u_Expr.setToInt(toIntExpr);
        }
        Expression toRealExpr = expr.getToReal();
        if (toRealExpr != null) {
            toRealExpr = visitExpression(toRealExpr);
            u_Expr.setToReal(toRealExpr);
        }
        Boolean b = expr.isBoolLiteral();
        if (b != null) {
            u_Expr.setBoolLiteral(b);
        }
        BigInteger int_value = expr.getIntLiteral();
        if (int_value != null) {
            u_Expr.setIntLiteral(int_value);
        }
        BigDecimal real_value = expr.getRealLiteral();
        if (real_value != null) {
            u_Expr.setRealLiteral(real_value);
        }
        // Identifier
        String identifier = expr.getIdentifier();
        if (identifier != null) {
            if (eventDeclarations.containsKey(identifier)) {
                u_Expr = eventExpression(expr, false);
            } else {
                u_Expr.setIdentifier(identifier);
            }
        }
        // NodeCall
        NodeCall nodeCall = expr.getCall();
        if (nodeCall != null) {
            u_Expr.setCall(nodeCall);
            List<Expression> arguments = new Vector<Expression>();
            for (Expression argExpr : nodeCall.getArgument()) {
                argExpr = visitExpression(argExpr);
                arguments.add(argExpr);
            }
            nodeCall.getArgument().clear();
            nodeCall.getArgument().addAll(arguments);
            u_Expr.setCall(nodeCall);
        }
        // Event Expression
        Expression event = expr.getEvent();
        if (event != null) {
            u_Expr = eventExpression(event, true);
        // System.out.println(expr + "^^^ Updated to Event ^^^ " + event);
        }
        ExpressionList expList = expr.getExpressionList();
        if (expList != null) {
            ExpressionList uList = new ExpressionList();
            for (Expression aexpr : expList.getExpression()) {
                expr = visitExpression(aexpr);
                uList.getExpression().add(expr);
            }
            expList.getExpression().clear();
            u_Expr.setExpressionList(uList);
        }
    // ExpressionList arrayExpList = expr.getArrayExpression();
    // 
    // if(expList != null) {
    // List<Expression> uList = new ArrayList<Expression>();
    // for(Expression aexpr: arrayExpList.getExpression()) {
    // expr = visitExpression(aexpr);
    // uList.add(expr);
    // }
    // arrayExpList.getExpression().clear();
    // arrayExpList.getExpression().addAll(uList);
    // u_Expr.setArrayExpression(arrayExpList);
    // }
    }
    return u_Expr;
}

Example 3 with IfThenElse

use of verdict.vdm.vdm_lustre.IfThenElse in project VERDICT by ge-high-assurance.

the class VDM2Lustre method visit.

// Connect -> NodeCall
public void visit(Connection connection, NodeBody nodeBody) {
    // R.H.S
    ConnectionEnd src = connection.getSource();
    // Source Connection
    Port src_component_port = src.getComponentPort();
    // L.H.S.
    ConnectionEnd dest = connection.getDestination();
    // Destination Connection
    Port dest_component_port = dest.getComponentPort();
    if (dest_component_port != null) {
        // Destination = Component (z3)
        // Source = SubComponent (my_b:B _z2)
        NodeEquation neq = new NodeEquation();
        NodeEquationLHS eq_lhs = new NodeEquationLHS();
        eq_lhs.getIdentifier().add(dest_component_port.getName());
        neq.setLhs(eq_lhs);
        CompInstancePort compInstancePort = src.getSubcomponentPort();
        ComponentInstance componentInstance = compInstancePort.getSubcomponent();
        src_component_port = compInstancePort.getPort();
        String src_portID = src_component_port.getName();
        Expression expr = new Expression();
        List<VariableDeclaration> vars = nodeBody.getVariableDeclaration();
        boolean match = false;
        String id_expr = componentInstance.getId() + "_port_" + src_portID;
        for (VariableDeclaration var : vars) {
            if (var.getName().equals(id_expr)) {
                match = true;
                break;
            }
        }
        if (match) {
            expr.setIdentifier(id_expr);
        } else {
            String inst_cmp = "(.+)_instrumented";
            Pattern inst_pattern = Pattern.compile(inst_cmp);
            // System.out.println(src_portID);
            Matcher m = inst_pattern.matcher(src_portID);
            if (m.matches()) {
                src_portID = m.group(1);
            }
            id_expr = componentInstance.getId() + "_port_" + src_portID;
            expr.setIdentifier(id_expr);
        // System.out.println(id_expr);
        // System.out.println(">>>>>>>>>>>>>Identifiers: " +
        // expr.getIdentifier());
        }
        neq.setRhs(expr);
        nodeBody.getEquation().add(neq);
    } else if (src_component_port != null) {
        CompInstancePort compInstancePort = dest.getSubcomponentPort();
        // X1
        dest_component_port = compInstancePort.getPort();
        // my_a1 : A
        ComponentInstance componentInstance = compInstancePort.getSubcomponent();
        String arg_value = src_component_port.getName();
        // called node Identifier.
        String called_node_ID = null;
        ComponentType componentType = componentInstance.getSpecification();
        ComponentImpl componentImpl = componentInstance.getImplementation();
        if (componentType == null) {
            componentType = componentImpl.getType();
            called_node_ID = componentType.getName() + "_dot_Impl";
        }
        if (componentType != null && componentImpl != null) {
            componentType = componentImpl.getType();
            called_node_ID = componentType.getName() + "_dot_Impl";
            String inst_cmp = "(.+)_instrumented";
            Pattern inst_pattern = Pattern.compile(inst_cmp);
            // System.out.println(arg_value);
            Matcher m = inst_pattern.matcher(arg_value);
            if (m.matches()) {
                arg_value = m.group(1);
            }
        } else {
            called_node_ID = componentType.getName();
            arg_value = src_component_port.getName();
        // System.out.println(arg_value);
        }
        for (Port port : componentType.getPort()) {
            // MODE
            PortMode port_mode = port.getMode();
            if (port_mode == PortMode.OUT) {
                // EQ L.H.S Variables *called Node return values
                String expr_id = componentInstance.getId() + "_port_" + port.getName();
                // System.out.print(">>>" + expr_id);
                NodeEquation n_eq = getNodeEq(expr_id, nodeBody);
                if (n_eq != null) {
                    Expression eq_rhs = n_eq.getRhs();
                    NodeCall node_called = eq_rhs.getCall();
                    String inst_cmp = "(.+)_Inst_.*";
                    Pattern inst_pattern = Pattern.compile(inst_cmp);
                    // String node_id = "";
                    // if (node_called != null) {
                    // node_id = node_called.getNodeId();
                    // }
                    // System.out.println(" = " + node_id + " (" + arg_value
                    // +
                    // ")");
                    Matcher m = inst_pattern.matcher(node_called.getNodeId());
                    IfThenElse ifelse = new IfThenElse();
                    Expression called_expr = new Expression();
                    // Condition
                    Expression gps_expr = new Expression();
                    if (m.matches()) {
                        // Instrumented component Instance ID
                        String component_id = m.group(1);
                        gps_expr.setIdentifier(component_id);
                    }
                    ifelse.setCondition(gps_expr);
                    // Then
                    ifelse.setThenBranch(called_expr);
                    // Else
                    Expression arg = new Expression();
                    arg.setIdentifier(src_component_port.getName());
                    ifelse.setElseBranch(arg);
                    // NodeCalled Expr
                    called_expr.setCall(node_called);
                    Expression instrumented_expr = new Expression();
                    instrumented_expr.setConditionalExpression(ifelse);
                    if (node_called != null) {
                        if (node_called.getNodeId().equals(called_node_ID)) {
                            for (Expression arg_expr : node_called.getArgument()) {
                                if (arg_expr.getIdentifier().equals(dest_component_port.getName())) {
                                    arg_expr.setIdentifier(arg_value);
                                } else if (node_called.getArgument().size() == 1) {
                                    arg_expr.setIdentifier(arg_value);
                                }
                            }
                        }
                    }
                }
            }
        }
    } else {
        CompInstancePort compInstancePort = src.getSubcomponentPort();
        ComponentInstance componentInstance = compInstancePort.getSubcomponent();
        src_component_port = compInstancePort.getPort();
        Expression arg_expr = new Expression();
        // my_a1_y1
        String src_portID = src_component_port.getName();
        String componentInstanceID = componentInstance.getId();
        arg_expr.setIdentifier(componentInstanceID + "_port_" + src_portID);
        // called node Identifier.
        String called_node_ID = null;
        compInstancePort = dest.getSubcomponentPort();
        componentInstance = compInstancePort.getSubcomponent();
        dest_component_port = compInstancePort.getPort();
        ComponentType componentType = componentInstance.getSpecification();
        ComponentImpl componentImpl = componentInstance.getImplementation();
        String old_portID = null;
        if (componentType == null) {
            componentType = componentImpl.getType();
            called_node_ID = componentType.getName();
        }
        if (componentType != null && componentImpl != null) {
            componentType = componentImpl.getType();
            called_node_ID = componentType.getName() + "_dot_Impl";
            String inst_cmp = "(.+)_instrumented";
            Pattern inst_pattern = Pattern.compile(inst_cmp);
            // System.out.print(src_portID + " ==> ");
            Matcher m = inst_pattern.matcher(src_portID);
            if (m.matches()) {
                old_portID = src_portID;
                src_portID = m.group(1);
                arg_expr.setIdentifier(componentInstanceID + "_port_" + src_portID);
            // System.out.println(old_portID + " -- " + src_portID);
            }
        // System.out.println(arg_expr.getIdentifier() + " <== " +
        // src_portID);
        } else {
            called_node_ID = componentType.getName();
        }
        String node_arg = "(.+)_Inst_.*";
        Pattern arg_pattern = Pattern.compile(node_arg);
        Matcher m_arg = arg_pattern.matcher(called_node_ID);
        if (!m_arg.matches() && old_portID != null) {
            arg_expr.setIdentifier(componentInstanceID + "_port_" + old_portID);
        // System.out.println("Node ID =>" + called_node_ID + "(" +
        // arg_expr.getIdentifier() + ")");
        }
        // System.out.println(called_node_ID);
        for (Port port : componentType.getPort()) {
            // MODE
            PortMode port_mode = port.getMode();
            if (port_mode == PortMode.OUT) {
                // EQ L.H.S Variables *called Node return values
                String expr_id = componentInstance.getId() + "_port_" + port.getName();
                NodeEquation n_eq = getNodeEq(expr_id, nodeBody);
                if (n_eq != null) {
                    Expression eq_rhs = n_eq.getRhs();
                    NodeCall node_called = eq_rhs.getCall();
                    String inst_cmp = "(.+)_Inst_.*";
                    Pattern inst_pattern = Pattern.compile(inst_cmp);
                    String node_id = "";
                    if (node_called != null) {
                        node_id = node_called.getNodeId();
                    }
                    Matcher m = inst_pattern.matcher(node_id);
                    IfThenElse ifelse = new IfThenElse();
                    Expression called_expr = new Expression();
                    // Condition
                    Expression g_expr = new Expression();
                    if (m.matches()) {
                        // Instrumented component Instance ID
                        String component_id = m.group(1);
                        g_expr.setIdentifier(component_id);
                    }
                    ifelse.setCondition(g_expr);
                    // Then
                    ifelse.setThenBranch(called_expr);
                    // Else
                    // Expression arg = new Expression();
                    ifelse.setElseBranch(arg_expr);
                    // NodeCalled Expr
                    called_expr.setCall(node_called);
                    Expression instrumented_expr = new Expression();
                    instrumented_expr.setConditionalExpression(ifelse);
                    if (node_called != null) {
                        if (node_called.getNodeId().equals(called_node_ID)) {
                            for (Expression a_expr : node_called.getArgument()) {
                                if (a_expr.getIdentifier().equals(dest_component_port.getName())) {
                                    a_expr.setIdentifier(arg_expr.getIdentifier());
                                } else if (node_called.getArgument().size() == 1) {
                                    a_expr.setIdentifier(arg_expr.getIdentifier());
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}

Example 4 with IfThenElse

use of verdict.vdm.vdm_lustre.IfThenElse in project VERDICT by ge-high-assurance.

the class Agree2Vdm method getVdmExpressionFromAgreeExpression.

// method to translate expression in Agree to expression in vdm
private Expression getVdmExpressionFromAgreeExpression(Expr agreeExpr, HashSet<String> dataTypeDecl, HashSet<String> nodeDecl, Model model) {
    Expression vdmExpr = new Expression();
    if (agreeExpr instanceof IfThenElseExpr) {
        IfThenElseExpr ifexpr = (IfThenElseExpr) agreeExpr;
        // for vdm model
        IfThenElse ifThenElseVal = new IfThenElse();
        Expression condExpr = getVdmExpressionFromAgreeExpression(ifexpr.getA(), dataTypeDecl, nodeDecl, model);
        ifThenElseVal.setCondition(condExpr);
        Expression thenBranchExpr = getVdmExpressionFromAgreeExpression(ifexpr.getB(), dataTypeDecl, nodeDecl, model);
        ifThenElseVal.setThenBranch(thenBranchExpr);
        Expression elseBranchExpr = getVdmExpressionFromAgreeExpression(ifexpr.getC(), dataTypeDecl, nodeDecl, model);
        ifThenElseVal.setElseBranch(elseBranchExpr);
        vdmExpr.setConditionalExpression(ifThenElseVal);
    } else if (agreeExpr instanceof CallExpr) {
        CallExpr callExpr = (CallExpr) agreeExpr;
        DoubleDotRef ddref = (DoubleDotRef) callExpr.getRef();
        if (ddref.getElm() instanceof NodeDef) {
            NodeDef nodeDef = (NodeDef) ddref.getElm();
            addNodeDefToTypeDeclarations(nodeDef, dataTypeDecl, nodeDecl, model);
            // create node call in vdm model
            NodeCall vdmNodeCall = new NodeCall();
            // setting node name
            vdmNodeCall.setNodeId(nodeDef.getName());
            EList<Expr> callExprArgs = callExpr.getArgs();
            // below are the parameters passed to the function call
            for (Expr callExprArg : callExprArgs) {
                Expression argExpr = getVdmExpressionFromAgreeExpression(callExprArg, dataTypeDecl, nodeDecl, model);
                // setting node arguments
                vdmNodeCall.getArgument().add(argExpr);
            }
            vdmExpr.setCall(vdmNodeCall);
        } else {
            System.out.println("Unmapped Typed");
        }
    } else if (agreeExpr instanceof NamedElmExpr) {
        NamedElmExpr nmExpr = (NamedElmExpr) agreeExpr;
        vdmExpr.setIdentifier(nmExpr.getElm().getName());
        // define corresponding types in the VDM if not already defined
        if (nmExpr.getElm() instanceof Arg) {
            Arg nmElmArg = (Arg) nmExpr.getElm();
            // define corresponding type in the VDM if not already defined
            Type argType = nmElmArg.getType();
            defineDataTypeDataImplementationTypeInVDM(argType, dataTypeDecl, model);
        } else if (nmExpr.getElm() instanceof Port) {
            Port nmElmPort = (Port) nmExpr.getElm();
            // define corresponding type in the VDM if not already defined
            if (nmElmPort instanceof DataPortImpl) {
                DataPort nmElmDataPort = (DataPort) nmElmPort;
                DataSubcomponentType dSubCompType = nmElmDataPort.getDataFeatureClassifier();
                defineDataTypeDataImplementationTypeInVDM(dSubCompType, dataTypeDecl, model);
            } else if (nmElmPort instanceof EventDataPortImpl) {
                EventDataPort nmElmDataPort = (EventDataPort) nmElmPort;
                DataSubcomponentType dSubCompType = nmElmDataPort.getDataFeatureClassifier();
                defineDataTypeDataImplementationTypeInVDM(dSubCompType, dataTypeDecl, model);
            } else {
                if (!(nmElmPort instanceof EventPort)) {
                    System.out.println("Unresolved Port Type");
                }
            }
        } else if (nmExpr.getElm() instanceof ConstStatement) {
            ConstStatement nmElmConstStatement = (ConstStatement) nmExpr.getElm();
            String nmElmConstStatementName = nmElmConstStatement.getName();
            // add const declaration to VDM if not already defined
            if (!dataTypeDecl.contains(nmElmConstStatementName)) {
                dataTypeDecl.add(nmElmConstStatementName);
                ConstantDeclaration vdmConstDeclaration = new ConstantDeclaration();
                vdmConstDeclaration.setName(nmElmConstStatementName);
                vdmConstDeclaration.setDefinition(getVdmExpressionFromAgreeExpression(nmElmConstStatement.getExpr(), dataTypeDecl, nodeDecl, model));
                vdmConstDeclaration.setDataType(getVdmTypeFromAgreeType(nmElmConstStatement.getType(), dataTypeDecl, model));
                LustreProgram lustreProgram = model.getDataflowCode();
                lustreProgram.getConstantDeclaration().add(vdmConstDeclaration);
                model.setDataflowCode(lustreProgram);
            }
        } else {
            System.out.println("Unresolved/unmapped NamedExprElm: " + nmExpr.getElm().getName());
        }
    } else if (agreeExpr instanceof SelectionExpr) {
        // selection expression corresponds to record projection in VDM
        RecordProjection vdmRecordProj = new RecordProjection();
        SelectionExpr selExpr = (SelectionExpr) agreeExpr;
        if (selExpr.getField() == null) {
            System.out.println("Null Selection Expr field: " + selExpr.getField());
        } else {
            NamedElement field = selExpr.getField();
            // set record-projection's reference
            if (selExpr.getTarget() != null) {
                // target can be NamedElmExpr or a SelectionExpr
                vdmRecordProj.setRecordReference(getVdmExpressionFromAgreeExpression(selExpr.getTarget(), dataTypeDecl, nodeDecl, model));
            }
            // set record-projection's field id
            vdmRecordProj.setFieldId(field.getName());
            // also set the name of the field's type as the record-projection's record-type
            if (field instanceof DataPortImpl) {
                DataPort dport = (DataPort) field;
                DataSubcomponentType dSubCompType = dport.getDataFeatureClassifier();
                defineDataTypeDataImplementationTypeInVDM(dSubCompType, dataTypeDecl, model);
                vdmRecordProj.setRecordType(dSubCompType.getName());
            } else if (field instanceof DataSubcomponentImpl) {
                DataSubcomponent dSubComp = (DataSubcomponent) field;
                DataSubcomponentType dSubCompType = dSubComp.getDataSubcomponentType();
                defineDataTypeDataImplementationTypeInVDM(dSubCompType, dataTypeDecl, model);
                vdmRecordProj.setRecordType(dSubCompType.getName());
            } else if (field instanceof ArgImpl) {
                Arg arg = (Arg) field;
                Type argType = arg.getType();
                defineDataTypeDataImplementationTypeInVDM(argType, dataTypeDecl, model);
                if (argType instanceof PrimType) {
                    vdmRecordProj.setRecordType(getDataTypeName(argType));
                } else {
                    System.out.println("Unresolved Arg Type so not setting record-type in record-projection.");
                }
            } else {
                System.out.println("Unresolved type of field.");
            }
        }
        vdmExpr.setRecordProjection(vdmRecordProj);
    } else if (agreeExpr instanceof BinaryExpr) {
        BinaryExpr binExpr = (BinaryExpr) agreeExpr;
        // for vdm
        BinaryOperation binoper = new BinaryOperation();
        // set left operand
        Expression leftOperand = getVdmExpressionFromAgreeExpression(binExpr.getLeft(), dataTypeDecl, nodeDecl, model);
        binoper.setLhsOperand(leftOperand);
        // set right operand
        Expression rightOperand = getVdmExpressionFromAgreeExpression(binExpr.getRight(), dataTypeDecl, nodeDecl, model);
        binoper.setRhsOperand(rightOperand);
        // set appropriate operator
        String operator = binExpr.getOp();
        if (operator.equalsIgnoreCase("->")) {
            vdmExpr.setArrow(binoper);
        } else if (operator.equalsIgnoreCase("=>")) {
            vdmExpr.setImplies(binoper);
        } else if (operator.equalsIgnoreCase("and")) {
            vdmExpr.setAnd(binoper);
        } else if (operator.equalsIgnoreCase("or")) {
            vdmExpr.setOr(binoper);
        } else if (operator.equalsIgnoreCase("=")) {
            vdmExpr.setEqual(binoper);
        } else if (operator.equalsIgnoreCase(">")) {
            vdmExpr.setGreaterThan(binoper);
        } else if (operator.equalsIgnoreCase("<")) {
            vdmExpr.setLessThan(binoper);
        } else if (operator.equalsIgnoreCase(">=")) {
            vdmExpr.setGreaterThanOrEqualTo(binoper);
        } else if (operator.equalsIgnoreCase("<=")) {
            vdmExpr.setLessThanOrEqualTo(binoper);
        } else if (operator.equalsIgnoreCase("+")) {
            vdmExpr.setPlus(binoper);
        } else if (operator.equalsIgnoreCase("-")) {
            vdmExpr.setMinus(binoper);
        } else if (operator.equalsIgnoreCase("!=") || operator.equalsIgnoreCase("<>")) {
            vdmExpr.setNotEqual(binoper);
        } else if (operator.equalsIgnoreCase("/")) {
            vdmExpr.setDiv(binoper);
        } else if (operator.equalsIgnoreCase("*")) {
            vdmExpr.setTimes(binoper);
        } else {
            System.out.println("Unmapped binary operator: " + operator);
        }
    } else if (agreeExpr instanceof UnaryExpr) {
        UnaryExpr unExpr = (UnaryExpr) agreeExpr;
        Expression singleOperand = getVdmExpressionFromAgreeExpression(unExpr.getExpr(), dataTypeDecl, nodeDecl, model);
        String operator = unExpr.getOp();
        if (operator.equalsIgnoreCase("this")) {
            vdmExpr.setCurrent(singleOperand);
        } else if (operator.equalsIgnoreCase("not")) {
            vdmExpr.setNot(singleOperand);
        } else if (operator.equalsIgnoreCase("-")) {
            vdmExpr.setNegative(singleOperand);
        } else {
            System.out.println("Unmapped unary operator.");
        }
    } else if (agreeExpr instanceof BoolLitExpr) {
        BoolLitExpr boolExpr = (BoolLitExpr) agreeExpr;
        vdmExpr.setBoolLiteral(boolExpr.getVal().getValue());
    } else if (agreeExpr instanceof EnumLitExpr) {
        EnumLitExpr enumExpr = (EnumLitExpr) agreeExpr;
        // check if elm is DataImplementationImpl or DataTypeImpl -- if yes add definition to type declarations if not already present
        DoubleDotRef enumType = enumExpr.getEnumType();
        if (enumType.getElm() instanceof DataTypeImpl) {
            org.osate.aadl2.DataType aadlDType = (org.osate.aadl2.DataType) enumType.getElm();
            resolveAADLDataType(aadlDType, dataTypeDecl, model);
        } else {
            System.out.println("Unexpected Elm type for EnumLitExpr");
        }
        vdmExpr.setIdentifier(enumExpr.getValue());
    } else if (agreeExpr instanceof PreExpr) {
        PreExpr preExpr = (PreExpr) agreeExpr;
        Expression expr = getVdmExpressionFromAgreeExpression(preExpr.getExpr(), dataTypeDecl, nodeDecl, model);
        vdmExpr.setPre(expr);
    } else if (agreeExpr instanceof RecordLitExpr) {
        RecordLiteral vdmRecordLiteral = new RecordLiteral();
        RecordLitExpr recLitExpr = (RecordLitExpr) agreeExpr;
        if (recLitExpr.getRecordType() instanceof DoubleDotRef) {
            DoubleDotRef recType = (DoubleDotRef) recLitExpr.getRecordType();
            if (recType.getElm().getName() != null) {
                // check if elm is DataImplementationImpl -- if yes add definition to type declarations if not already present
                if (recType.getElm() instanceof DataImplementation) {
                    org.osate.aadl2.DataImplementation aadlDImpl = (org.osate.aadl2.DataImplementation) recType.getElm();
                    resolveAADLDataImplementationType(aadlDImpl, dataTypeDecl, model);
                } else {
                    System.out.println("Unexpected Elm type for EnumLitExpr");
                }
                // set name of the record literal in the vdm model
                vdmRecordLiteral.setRecordType(recType.getElm().getName());
                // get args and arg-expr and set them as field identifier and value in the vdm model
                EList<NamedElement> recLitArgs = recLitExpr.getArgs();
                EList<Expr> recLitArgsExpr = recLitExpr.getArgExpr();
                // below are the values set to variable
                for (int ind = 0; ind < recLitArgs.size(); ind++) {
                    FieldDefinition fieldDef = new FieldDefinition();
                    fieldDef.setFieldIdentifier(recLitArgs.get(ind).getName());
                    fieldDef.setFieldValue(getVdmExpressionFromAgreeExpression(recLitArgsExpr.get(ind), dataTypeDecl, nodeDecl, model));
                    // set field definitions in the record literal in the vdm model
                    vdmRecordLiteral.getFieldDefinition().add(fieldDef);
                }
                vdmExpr.setRecordLiteral(vdmRecordLiteral);
            } else {
                System.out.println("Unexpected Literal's Record Type that has null named elm.");
            }
        } else {
            System.out.println("Unresolved or unmapped record literal expression.");
        }
    } else if (agreeExpr instanceof IntLitExpr) {
        IntLitExpr intLitExpr = (IntLitExpr) agreeExpr;
        BigInteger bigInt = new BigInteger(intLitExpr.getVal());
        vdmExpr.setIntLiteral(bigInt);
    } else if (agreeExpr instanceof RealLitExpr) {
        RealLitExpr realLitExpr = (RealLitExpr) agreeExpr;
        BigDecimal bigDecimal = new BigDecimal(realLitExpr.getVal());
        vdmExpr.setRealLiteral(bigDecimal);
    } else if (agreeExpr instanceof EventExpr) {
        EventExpr eventExpr = (EventExpr) agreeExpr;
        if (eventExpr.getPort() != null) {
            vdmExpr.setEvent(getVdmExpressionFromAgreeExpression(eventExpr.getPort(), dataTypeDecl, nodeDecl, model));
        } else {
            System.out.println("EventExpr does not have port infornation.");
        }
    } else if (agreeExpr instanceof RealCast) {
        RealCast realCastExpr = (RealCast) agreeExpr;
        vdmExpr.setToReal(getVdmExpressionFromAgreeExpression(realCastExpr.getExpr(), dataTypeDecl, nodeDecl, model));
    } else {
        System.out.println("Unresolved/umapped agree expr" + agreeExpr.toString());
    }
    return vdmExpr;
}

Example 5 with IfThenElse

use of verdict.vdm.vdm_lustre.IfThenElse in project VERDICT by ge-high-assurance.

the class VerdictLustreListener method exitIfThenElseExpr.

/**
 * Extract a conditional expression.
 */
@Override
public void exitIfThenElseExpr(LustreParser.IfThenElseExprContext ctx) {
    IfThenElse conditional = new IfThenElse();
    conditional.setCondition(ctx.expr(0).expression);
    conditional.setThenBranch(ctx.expr(1).expression);
    conditional.setElseBranch(ctx.expr(2).expression);
    ctx.expression = new Expression();
    ctx.expression.setConditionalExpression(conditional);
}