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

Example 16 with ErrorFatal

use of edu.mit.csail.sdg.alloy4.ErrorFatal 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 17 with ErrorFatal

use of edu.mit.csail.sdg.alloy4.ErrorFatal 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 18 with ErrorFatal

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

the class CompModule method resolveParams.

/**
 * Every param in every module will now point to a nonnull Sig.
 */
private static void resolveParams(A4Reporter rep, List<CompModule> modules) throws Err {
    while (true) {
        boolean chg = false;
        Open missing = null;
        String missingName = "";
        for (CompModule mod : modules) for (Open open : mod.opens.values()) {
            CompModule sub = open.realModule;
            if (open.args.size() != sub.params.size())
                throw new ErrorSyntax(open.pos, "You supplied " + open.args.size() + " arguments to the open statement, but the imported module requires " + sub.params.size() + " arguments.");
            int i = 0;
            for (Map.Entry<String, Sig> p : sub.params.entrySet()) {
                Sig old = p.getValue();
                String kn = p.getKey(), vn = open.args.get(i);
                i++;
                Sig vv = mod.getRawSIG(open.pos, vn);
                if (vv == null) {
                    if (old == null) {
                        missing = open;
                        missingName = vn;
                    }
                    continue;
                }
                if (old == vv)
                    continue;
                if (old != null)
                    throw new ErrorFatal(open.pos, "Internal error (module re-instantiated with different arguments)");
                if (vv == NONE)
                    throw new ErrorSyntax(open.pos, "You cannot use \"none\" as an instantiating argument.");
                chg = true;
                p.setValue(vv);
                rep.parse("RESOLVE: " + (sub.path.length() == 0 ? "this/" : sub.path) + "/" + kn + " := " + vv + "\n");
            }
        }
        if (!chg && missing == null)
            return;
        if (!chg)
            throw new ErrorSyntax(missing.pos, "The signature name \"" + missingName + "\" cannot be found.");
    }
}

Example 19 with ErrorFatal

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

the class SimInstance method visit.

/**
 * {@inheritDoc}
 */
@Override
public Object visit(ExprQt x) throws Err {
    Expr xx = x.desugar();
    if (xx instanceof ExprQt)
        x = (ExprQt) xx;
    else
        return visitThis(xx);
    if (x.op == ExprQt.Op.COMPREHENSION) {
        TempList<SimTuple> ans = new TempList<SimTuple>();
        enumerate(ans, 0, x, x.sub, 0);
        return SimTupleset.make(ans.makeConst());
    }
    if (x.op == ExprQt.Op.ALL)
        return enumerate(null, 0, x, x.sub.not(), 0) == 0;
    if (x.op == ExprQt.Op.NO)
        return enumerate(null, 0, x, x.sub, 0) == 0;
    if (x.op == ExprQt.Op.SOME)
        return enumerate(null, 0, x, x.sub, 0) >= 1;
    if (x.op == ExprQt.Op.LONE)
        return enumerate(null, 0, x, x.sub, 0) <= 1;
    if (x.op == ExprQt.Op.ONE)
        return enumerate(null, 0, x, x.sub, 0) == 1;
    if (x.op == ExprQt.Op.SUM)
        return trunc(enumerate(null, 0, x, x.sub, 0));
    throw new ErrorFatal(x.pos, "Unsupported operator (" + x.op + ") encountered during ExprQt.accept()");
}

Example 20 with ErrorFatal

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

the class SimInstance method visit.

/**
 * {@inheritDoc}
 */
@Override
public SimTupleset visit(Field x) throws Err {
    if (x.defined) {
        final ExprVar v = (ExprVar) (x.sig.decl.get());
        final Expr b = x.decl().expr;
        final Env<ExprVar, Object> oldenv = env;
        env = new Env<ExprVar, Object>();
        if (!b.hasVar(v)) {
            SimTupleset ans = cset(x.sig).product(cset(b));
            env = oldenv;
            return ans;
        }
        SimTupleset ans = SimTupleset.EMPTY;
        for (SimTuple a : visit(x.sig)) {
            SimTupleset left = SimTupleset.make(a);
            env.put(v, left);
            SimTupleset right = cset(b);
            env.remove(v);
            ans = left.product(right).union(ans);
        }
        env = oldenv;
        return ans;
    }
    Object ans = sfs.get(x);
    if (ans instanceof SimTupleset)
        return (SimTupleset) ans;
    else
        throw new ErrorFatal("Unknown field " + x + " encountered during evaluation.");
}