Examples with IdExpr jkind.lustre.IdExpr used on opensource projects

Example 41 with IdExpr

use of jkind.lustre.IdExpr in project AGREE by loonwerks.

the class LustreContractAstBuilder method addInitConstraint.

protected static void addInitConstraint(AgreeNode agreeNode, List<AgreeVar> outputs, List<AgreeStatement> assertions, AgreeNode subAgreeNode, String prefix, Expr clockExpr, Node lustreNode) {
    if (agreeNode.timing != TimingModel.SYNC) {
        String tickedName = subAgreeNode.id + "___TICKED";
        outputs.add(new AgreeVar(tickedName, NamedType.BOOL, null, agreeNode.compInst, null));
        Expr tickedId = new IdExpr(tickedName);
        Expr preTicked = new UnaryExpr(UnaryOp.PRE, tickedId);
        Expr tickedOrPre = new BinaryExpr(clockExpr, BinaryOp.OR, preTicked);
        Expr initOrTicked = new BinaryExpr(clockExpr, BinaryOp.ARROW, tickedOrPre);
        Expr tickedEq = new BinaryExpr(tickedId, BinaryOp.EQUAL, initOrTicked);
        assertions.add(new AgreeStatement("", tickedEq, null));
        // we have two re-write the ids in the initial expressions
        IdRewriter rewriter = id -> new IdExpr(prefix + id.id);
        Expr newInit = subAgreeNode.initialConstraint.accept(new IdRewriteVisitor(rewriter));
        Expr initConstr = new BinaryExpr(new UnaryExpr(UnaryOp.NOT, tickedId), BinaryOp.IMPLIES, newInit);
        assertions.add(new AgreeStatement("", initConstr, null));
        // we also need to add hold expressions for the assumptions and
        // lemmas
        Expr assumeLemmaTrue = new BoolExpr(true);
        for (VarDecl lustreVar : lustreNode.inputs) {
            AgreeVar var = (AgreeVar) lustreVar;
            if (var.reference instanceof AssumeStatement || var.reference instanceof LemmaStatement) {
                assumeLemmaTrue = new BinaryExpr(assumeLemmaTrue, BinaryOp.AND, new IdExpr(prefix + var.id));
            }
        }
        assumeLemmaTrue = new BinaryExpr(new UnaryExpr(UnaryOp.NOT, tickedId), BinaryOp.IMPLIES, assumeLemmaTrue);
        assertions.add(new AgreeStatement("", assumeLemmaTrue, null));
    }
}

Example 42 with IdExpr

use of jkind.lustre.IdExpr in project AGREE by loonwerks.

the class LustreContractAstBuilder method addCondactCall.

protected static void addCondactCall(AgreeNode agreeNode, String nodePrefix, List<AgreeVar> inputs, List<AgreeStatement> assertions, AgreeNode subAgreeNode, String prefix, Expr clockExpr, Node lustreNode) {
    List<Expr> inputIds = new ArrayList<>();
    List<Expr> initOutputsVals = new ArrayList<>();
    List<IdExpr> nodeOutputIds = new ArrayList<>();
    for (VarDecl var : lustreNode.inputs) {
        inputIds.add(new IdExpr(prefix + var.id));
    }
    for (VarDecl var : lustreNode.outputs) {
        AgreeVar outputVar = (AgreeVar) var;
        String dummyName = prefix + var.id + "__DUMMY";
        AgreeVar dummyVar = new AgreeVar(dummyName, outputVar.type, outputVar.reference, outputVar.compInst, outputVar.featInst);
        if (!inputs.contains(dummyVar)) {
            inputs.add(dummyVar);
        }
        initOutputsVals.add(new IdExpr(dummyName));
        nodeOutputIds.add(new IdExpr(prefix + var.id));
    }
    if (agreeNode.timing == TimingModel.LATCHED) {
        throw new AgreeException("check how we do this in the generic lustre translation now" + " to make sure that it is correct");
    }
    Expr condactExpr = new CondactExpr(clockExpr, new NodeCallExpr(lustreNode.id, inputIds), initOutputsVals);
    Expr condactOutput;
    if (nodeOutputIds.size() > 1) {
        condactOutput = new TupleExpr(nodeOutputIds);
    } else {
        condactOutput = nodeOutputIds.get(0);
    }
    Expr condactCall = new BinaryExpr(condactOutput, BinaryOp.EQUAL, condactExpr);
    assertions.add(new AgreeStatement("", condactCall, null));
}

Example 43 with IdExpr

use of jkind.lustre.IdExpr in project AGREE by loonwerks.

the class AgreePatternBuilder method caseSporadicStatement.

@Override
public AgreeStatement caseSporadicStatement(SporadicStatement object) {
    IdExpr event = (IdExpr) builder.doSwitch(object.getEvent());
    com.rockwellcollins.atc.agree.agree.Expr jitter = object.getJitter();
    Expr jitterExpr = null;
    if (jitter != null) {
        jitterExpr = builder.doSwitch(jitter);
    }
    Expr iat = builder.doSwitch(object.getIat());
    return new AgreeSporadicPattern(str, ref, event, iat, jitterExpr);
}

Example 44 with IdExpr

use of jkind.lustre.IdExpr in project AGREE by loonwerks.

the class AgreePatternBuilder method caseWhenOccursStatment.

@Override
public AgreeStatement caseWhenOccursStatment(WhenOccursStatment object) {
    IdExpr condition = (IdExpr) builder.doSwitch(object.getCondition());
    IdExpr effect = (IdExpr) builder.doSwitch(object.getEvent());
    Expr timesExpr = builder.doSwitch(object.getTimes());
    boolean exclusive = object.getExcl() != null;
    if (!(timesExpr instanceof IntExpr)) {
        throw new AgreeException("Expected an integer literal in 'When Occurs' pattern");
    }
    BigInteger times = ((IntExpr) timesExpr).value;
    AgreePatternInterval interval = getIntervalType(object.getInterval());
    return new AgreeTimesPattern(str, ref, exclusive, condition, effect, interval, null, TriggerType.CONDITION, TriggerType.CONDITION, times, null);
}

Example 45 with IdExpr

use of jkind.lustre.IdExpr in project AGREE by loonwerks.

the class AgreePatternBuilder method caseWheneverOccursStatement.

@Override
public AgreeStatement caseWheneverOccursStatement(WheneverOccursStatement object) {
    IdExpr cause = (IdExpr) builder.doSwitch(object.getCause());
    IdExpr effect = (IdExpr) builder.doSwitch(object.getEffect());
    boolean exclusive = object.getExcl() != null;
    AgreePatternInterval effectInterval = getIntervalType(object.getInterval());
    return new AgreeCauseEffectPattern(str, ref, exclusive, cause, effect, null, effectInterval, TriggerType.EVENT, TriggerType.EVENT);
}