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

Example 1 with VarDecl

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

the class InlineNodeCalls method visitNodeCallExpr.

public List<IdExpr> visitNodeCallExpr(NodeCallExpr e) {
    String prefix = newPrefix(e.node);
    Node node = nodeTable.get(getOriginalName(e));
    Map<String, IdExpr> translation = getTranslation(prefix, node);
    createInputEquations(node.inputs, e.args, translation);
    createAssignmentEquations(prefix, node.equations, translation);
    accumulateProperties(node.properties, translation);
    List<IdExpr> result = new ArrayList<>();
    for (VarDecl decl : node.outputs) {
        result.add(translation.get(decl.id));
    }
    return result;
}

Example 2 with VarDecl

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

the class RemoveCondacts method clockOutputs.

private Node clockOutputs(Node node, IdExpr clock) {
    NodeBuilder builder = new NodeBuilder(node);
    builder.clearOutputs();
    builder.addLocals(node.outputs);
    for (VarDecl output : node.outputs) {
        VarDecl dflt = new VarDecl(output.id + namePrefix + "default", output.type);
        builder.addInput(dflt);
        VarDecl clocked = new VarDecl(output.id + namePrefix + "clocked", output.type);
        builder.addOutput(clocked);
        // clocked = if clock then output else (default -> pre clocked)
        Equation eq = new Equation(new IdExpr(clocked.id), new IfThenElseExpr(clock, new IdExpr(output.id), new BinaryExpr(new IdExpr(dflt.id), BinaryOp.ARROW, new UnaryExpr(UnaryOp.PRE, new IdExpr(clocked.id)))));
        builder.addEquation(eq);
    }
    return builder.build();
}

Example 3 with VarDecl

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

the class RemoveCondacts method clockProperties.

private Node clockProperties(Node node, final IdExpr clock) {
    NodeBuilder builder = new NodeBuilder(node);
    builder.clearProperties();
    for (String property : node.properties) {
        VarDecl clocked = new VarDecl(property + namePrefix + "clocked_property", NamedType.BOOL);
        builder.addLocal(clocked);
        // clocked_property = clock => property
        builder.addEquation(new Equation(new IdExpr(clocked.id), new BinaryExpr(clock, BinaryOp.IMPLIES, new IdExpr(property))));
        builder.addProperty(clocked.id);
    }
    return builder.build();
}

Example 4 with VarDecl

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

the class RemoveCondacts method addClock.

private Node addClock(Node node, IdExpr clock) {
    NodeBuilder builder = new NodeBuilder(node);
    builder.clearInputs();
    builder.addInput(new VarDecl(clock.id, NamedType.BOOL));
    builder.addInputs(node.inputs);
    return builder.build();
}

Example 5 with VarDecl

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

the class RemoveCondacts method clockArrowsAndPres.

private Node clockArrowsAndPres(Node node, final IdExpr clock) {
    final VarDecl init = new VarDecl(namePrefix + "init", NamedType.BOOL);
    final List<Equation> preEquations = new ArrayList<>();
    final List<VarDecl> preLocals = new ArrayList<>();
    node = (Node) node.accept(new AstMapVisitor() {

        private int counter = 0;

        @Override
        public Expr visit(BinaryExpr e) {
            if (e.op == BinaryOp.ARROW) {
                return new IfThenElseExpr(new IdExpr(init.id), e.left.accept(this), e.right.accept(this));
            } else {
                return super.visit(e);
            }
        }

        @Override
        public Expr visit(UnaryExpr e) {
            if (e.op == UnaryOp.PRE) {
                String state = namePrefix + "state" + counter++;
                Type type = e.expr.accept(typeReconstructor);
                preLocals.add(new VarDecl(state, type));
                // state = if clock then expr else pre state
                preEquations.add(new Equation(new IdExpr(state), new IfThenElseExpr(clock, e.expr.accept(this), new UnaryExpr(UnaryOp.PRE, new IdExpr(state)))));
                return new UnaryExpr(UnaryOp.PRE, new IdExpr(state));
            } else {
                return super.visit(e);
            }
        }
    });
    NodeBuilder builder = new NodeBuilder(node);
    builder.addLocals(preLocals);
    builder.addLocal(init);
    builder.addEquations(preEquations);
    // init = true -> if pre clock then false else pre init
    builder.addEquation(new Equation(new IdExpr(init.id), new BinaryExpr(new BoolExpr(true), BinaryOp.ARROW, new IfThenElseExpr(new UnaryExpr(UnaryOp.PRE, clock), new BoolExpr(false), new UnaryExpr(UnaryOp.PRE, new IdExpr(init.id))))));
    return builder.build();
}