Examples with Err edu.mit.csail.sdg.alloy4.Err used on opensource projects

Example 46 with Err

use of edu.mit.csail.sdg.alloy4.Err in project org.alloytools.alloy by AlloyTools.

the class InternalTest method test3.

public void test3() throws Exception {
    XMLNode xml = new XMLNode(new StringReader("<alloy builddate='unknown'>" + "<instance bitwidth='2' maxseq='1' command='Run Deadlock' filename='dijkstra.als'>" + "<sig label='univ' ID='0' builtin='yes'> <atom label='-2'/> <atom label='-1'/> <atom label='0'/> <atom label='1'/> <atom label='State$0'/> <atom label='State$1'/> <atom label='State$2'/> </sig>" + "<sig label='Int' ID='1' parentID='0' builtin='yes'> <atom label='-2'/> <atom label='-1'/> <atom label='0'/> <atom label='1'/> </sig>" + "<sig label='seq/Int' ID='2' parentID='1' builtin='yes'> <atom label='0'/> </sig>" + "<sig label='State' ID='5' parentID='6'> <atom label='State$0'/> </sig>" + "<sig label='Mutex' ID='6' parentID='5'> <atom label='Mutex$0'/> </sig>" + "</instance>" + "</alloy>"));
    String err = "";
    try {
        A4SolutionReader.read(null, xml);
    } catch (Throwable ex) {
        err = ex.toString();
    }
    check(err.contains("cyclic inheritance"));
}

Example 47 with Err

use of edu.mit.csail.sdg.alloy4.Err in project org.alloytools.alloy by AlloyTools.

the class StaticInstanceReader method setOrRel.

/**
 * Construct an AlloySet or AlloyRelation corresponding to the given expression.
 */
private void setOrRel(A4Solution sol, String label, Expr expr, boolean isPrivate, boolean isMeta) throws Err {
    for (List<PrimSig> ps : expr.type().fold()) {
        if (ps.size() == 1) {
            PrimSig t = ps.get(0);
            AlloySet set = makeSet(label, isPrivate, isMeta, sig(t));
            sets.add(set);
            for (A4Tuple tp : (A4TupleSet) (sol.eval(expr.intersect(t)))) {
                atom2sets.get(string2atom.get(tp.atom(0))).add(set);
            }
        } else {
            Expr mask = null;
            List<AlloyType> types = new ArrayList<AlloyType>(ps.size());
            for (int i = 0; i < ps.size(); i++) {
                types.add(sig(ps.get(i)));
                if (mask == null)
                    mask = ps.get(i);
                else
                    mask = mask.product(ps.get(i));
            }
            AlloyRelation rel = makeRel(label, isPrivate, isMeta, types);
            Set<AlloyTuple> ts = new LinkedHashSet<AlloyTuple>();
            for (A4Tuple tp : (A4TupleSet) (sol.eval(expr.intersect(mask)))) {
                AlloyAtom[] atoms = new AlloyAtom[tp.arity()];
                for (int i = 0; i < tp.arity(); i++) {
                    atoms[i] = string2atom.get(tp.atom(i));
                    if (atoms[i] == null)
                        throw new ErrorFatal("Unexpected XML inconsistency: cannot resolve atom " + tp.atom(i));
                }
                ts.add(new AlloyTuple(atoms));
            }
            rels.put(rel, ts);
        }
    }
}

Example 48 with Err

use of edu.mit.csail.sdg.alloy4.Err in project org.alloytools.alloy by AlloyTools.

the class StaticInstanceReader method sigMETA.

/**
 * Returns the AlloyType corresponding to the given sig; create an AlloyType for
 * it if none existed before.
 */
private AlloyType sigMETA(PrimSig s) throws Err {
    if (s == Sig.NONE)
        throw new ErrorFatal("Unexpected sig \"none\" encountered.");
    AlloyType type = sig2type.get(s);
    if (type != null)
        return type;
    if (s == Sig.UNIV)
        type = AlloyType.UNIV;
    else if (s == Sig.SIGINT)
        type = AlloyType.INT;
    else if (s == Sig.SEQIDX)
        type = AlloyType.SEQINT;
    else if (s == Sig.STRING)
        type = AlloyType.STRING;
    else
        type = makeType(s.label, s.isOne != null, s.isAbstract != null, false, s.isPrivate != null, s.isMeta != null, s.isEnum != null);
    sig2type.put(s, type);
    AlloyAtom atom = new AlloyAtom(type, (type == AlloyType.SEQINT ? Integer.MIN_VALUE : Integer.MAX_VALUE), s.label);
    atom2sets.put(atom, new LinkedHashSet<AlloySet>());
    sig2atom.put(s, atom);
    if (s.parent != Sig.UNIV && s.parent != null)
        ts.put(type, sigMETA(s.parent));
    if (s.parent != null)
        exts.add(new AlloyTuple(atom, sig2atom.get(s.parent)));
    Iterable<PrimSig> children = (s == Sig.UNIV ? toplevels : s.children());
    for (PrimSig sub : children) sigMETA(sub);
    return type;
}

Example 49 with Err

use of edu.mit.csail.sdg.alloy4.Err in project org.alloytools.alloy by AlloyTools.

the class ExampleUsingTheCompiler method main.

/*
     * Execute every command in every file. This method parses every file, then
     * execute every command. If there are syntax or type errors, it may throw a
     * ErrorSyntax or ErrorType or ErrorAPI or ErrorFatal exception. You should
     * catch them and display them, and they may contain filename/line/column
     * information.
     */
public static void main(String[] args) throws Err {
    // The visualizer (We will initialize it to nonnull when we visualize an
    // Alloy solution)
    VizGUI viz = null;
    // Alloy4 sends diagnostic messages and progress reports to the
    // A4Reporter.
    // By default, the A4Reporter ignores all these events (but you can
    // extend the A4Reporter to display the event for the user)
    A4Reporter rep = new A4Reporter() {

        // For example, here we choose to display each "warning" by printing
        // it to System.out
        @Override
        public void warning(ErrorWarning msg) {
            System.out.print("Relevance Warning:\n" + (msg.toString().trim()) + "\n\n");
            System.out.flush();
        }
    };
    for (String filename : args) {
        // Parse+typecheck the model
        System.out.println("=========== Parsing+Typechecking " + filename + " =============");
        Module world = CompUtil.parseEverything_fromFile(rep, null, filename);
        // Choose some default options for how you want to execute the
        // commands
        A4Options options = new A4Options();
        options.solver = A4Options.SatSolver.SAT4J;
        for (Command command : world.getAllCommands()) {
            // Execute the command
            System.out.println("============ Command " + command + ": ============");
            A4Solution ans = TranslateAlloyToKodkod.execute_command(rep, world.getAllReachableSigs(), command, options);
            // Print the outcome
            System.out.println(ans);
            // If satisfiable...
            if (ans.satisfiable()) {
                // You can query "ans" to find out the values of each set or
                // type.
                // This can be useful for debugging.
                // 
                // You can also write the outcome to an XML file
                ans.writeXML("alloy_example_output.xml");
                // You can then visualize the XML file by calling this:
                if (viz == null) {
                    viz = new VizGUI(false, "alloy_example_output.xml", null);
                } else {
                    viz.loadXML("alloy_example_output.xml", true);
                }
            }
        }
    }
}

Example 50 with Err

use of edu.mit.csail.sdg.alloy4.Err in project org.alloytools.alloy by AlloyTools.

the class Simplifier method condense.

/**
 * Simplify (a.(a->b)) into b when semantically equivalent
 */
private final Expression condense(Expression x) {
    while (x instanceof BinaryExpression) {
        BinaryExpression b = (BinaryExpression) x;
        if (b.op() == ExprOperator.JOIN && b.left() instanceof Relation && b.right() instanceof BinaryExpression) {
            Relation r = (Relation) (b.left());
            try {
                if (sol.query(true, r, false).size() != 1)
                    return x;
                if (sol.query(false, r, false).size() != 1)
                    return x;
            } catch (Err er) {
                return x;
            }
            b = (BinaryExpression) (b.right());
            if (b.op() == ExprOperator.PRODUCT && b.left() == r) {
                x = b.right();
                continue;
            }
        }
        break;
    }
    return x;
}