Examples with ObligationSet com.rockwellcollins.atc.tcg.obligations.ufc.ObligationSet used on opensource projects

Example 6 with ObligationSet

use of com.rockwellcollins.atc.tcg.obligations.ufc.ObligationSet in project AGREE by loonwerks.

the class GenerateUfcObligationsVisitor method visit.

@Override
public ObligationSet visit(BinaryExpr e) {
    if (e.op == BinaryOp.AND) {
        ObligationSet lhs = e.left.accept(this);
        ObligationSet rhs = e.right.accept(this);
        lhs.extendContext(e.right);
        rhs.extendContext(e.left);
        lhs.addAll(rhs);
        return lhs;
    } else if (e.op == BinaryOp.OR) {
        ObligationSet lhs = e.left.accept(this);
        ObligationSet rhs = e.right.accept(this);
        lhs.extendContext(notExpr(e.right));
        rhs.extendContext(notExpr(e.left));
        lhs.addAll(rhs);
        return lhs;
    } else if (e.op == BinaryOp.IMPLIES) {
        Expr equivExpr = binExpr(notExpr(e.left), BinaryOp.OR, e.right);
        return equivExpr.accept(this);
    } else if (e.op == BinaryOp.ARROW) {
        ObligationSet lhs = e.left.accept(this);
        ObligationSet rhs = e.right.accept(this);
        lhs.makeInitStepOnly();
        rhs.makeAfter1Only();
        lhs.addAll(rhs);
        return lhs;
    } else if (isBoolExpr(e.left)) {
        if (e.op == BinaryOp.XOR || e.op == BinaryOp.NOTEQUAL) {
            Expr equivExpr = notExpr(binExpr(e.left, BinaryOp.EQUAL, e.right));
            return equivExpr.accept(this);
        } else if (e.op == BinaryOp.EQUAL) {
            Expr equivExpr = binExpr(binExpr(e.left, BinaryOp.AND, e.right), BinaryOp.OR, notExpr(binExpr(e.left, BinaryOp.OR, e.right)));
            return equivExpr.accept(this);
        } else {
            // other relational operator over booleans (this may be dead code)
            ObligationSet lhs = e.left.accept(this);
            ObligationSet rhs = e.right.accept(this);
            lhs.addAll(rhs);
            return baseExpr(e, lhs);
        }
    } else {
        // Other kind of operator (arithmetic?)
        ObligationSet lhs = e.left.accept(this);
        ObligationSet rhs = e.right.accept(this);
        lhs.addAll(rhs);
        return baseExpr(e, lhs);
    }
}

Example 7 with ObligationSet

use of com.rockwellcollins.atc.tcg.obligations.ufc.ObligationSet in project AGREE by loonwerks.

the class GenerateUfcObligationsVisitor method visit.

@Override
public ObligationSet visit(ArrayUpdateExpr e) {
    ObligationSet obs1 = e.array.accept(this);
    ObligationSet obs2 = e.index.accept(this);
    ObligationSet obs3 = e.value.accept(this);
    obs1.addAll(obs2);
    obs1.addAll(obs3);
    return baseExpr(e, obs1);
}

Example 8 with ObligationSet

use of com.rockwellcollins.atc.tcg.obligations.ufc.ObligationSet in project AGREE by loonwerks.

the class GenerateUfcObligationsVisitor method visit.

@Override
public ObligationSet visit(Equation equation) {
    ObligationSet result = new ObligationSet();
    boolean isGuaranteeEq = equation.lhs.size() == 1 && equation.lhs.get(0).id.startsWith(GenerateUfcObligationsVisitor.GUARANTEE_PREFIX);
    boolean isAssumptionEq = false;
    /* how do we determine this? */
    boolean isNormalEq = !isGuaranteeEq;
    if (this.generateGuaranteeObligations && isGuaranteeEq) {
        if (equation.lhs.size() == 1 && equation.lhs.get(0).id.startsWith(GenerateUfcObligationsVisitor.GUARANTEE_PREFIX)) {
            result = expr(equation.expr);
        }
    } else if (this.generateAssumptionObligations && isAssumptionEq) {
        result = expr(equation.expr);
    } else if (this.generateEqObligations && isNormalEq) {
        result = expr(equation.expr);
    } else if (this.generatePropertyObligations) {
        // Check if the equation is for a property in the current node
        if (equation.lhs.size() == 1 && currentNode != null && currentNode.properties.contains(equation.lhs.get(0).id)) {
            result = expr(equation.expr);
        }
    }
    if (!equation.lhs.isEmpty()) {
        result.setEqId(equation.lhs.get(0).id);
    }
    return result;
}

Example 9 with ObligationSet

use of com.rockwellcollins.atc.tcg.obligations.ufc.ObligationSet in project AGREE by loonwerks.

the class GenerateUfcObligationsVisitor method constructNewProgram.

public Program constructNewProgram() {
    List<Node> nodes = new ArrayList<>();
    for (Entry<Node, ObligationSet> nodeElem : obligations.entrySet()) {
        nodes.add(constructNewNode(nodeElem.getKey(), nodeElem.getValue()));
    }
    Program newProgram = new Program(initialProgram.location, initialProgram.types, initialProgram.constants, Collections.emptyList(), nodes, initialProgram.main);
    return newProgram;
}