Examples with Field edu.mit.csail.sdg.ast.Sig.Field used on opensource projects

Example 11 with Field

use of edu.mit.csail.sdg.ast.Sig.Field in project org.alloytools.alloy by AlloyTools.

the class SimInstance method write.

/**
 * Write the bitwidth, maxseq, set of all atoms, and map of all sig/field/var
 * into the given file.
 */
private void write(BufferedOutputStream out) throws IOException {
    write(out, "maxseq = " + maxseq + ("\n" + "bitwidth = ") + bitwidth + "\n");
    for (Map.Entry<Expr, SimTupleset> entry : sfs.entrySet()) {
        Expr e = entry.getKey();
        if (e instanceof Sig)
            write(out, "sig " + ((Sig) e).label + " = ");
        else if (e instanceof Field)
            write(out, "field " + ((Field) e).sig.label + " " + ((Field) e).label + " = ");
        else if (e instanceof ExprVar)
            write(out, "var " + ((ExprVar) e).label + " = ");
        else
            continue;
        entry.getValue().write(out);
        out.write('\n');
    }
}

Example 12 with Field

use of edu.mit.csail.sdg.ast.Sig.Field in project org.alloytools.alloy by AlloyTools.

the class SimInstance method visit.

/**
 * {@inheritDoc}
 */
@Override
public SimTupleset visit(Sig x) throws Err {
    if (x.isSame(Sig.NONE))
        return SimTupleset.EMPTY;
    if (x.isSame(Sig.SEQIDX))
        return SimTupleset.make(0, maxseq - 1);
    if (x.isSame(Sig.SIGINT))
        return SimTupleset.make(min, max);
    if (x.isSame(Sig.STRING)) {
        if (cacheSTRING == null) {
            cacheSTRING = SimTupleset.EMPTY;
            for (Map.Entry<Expr, SimTupleset> e : sfs.entrySet()) if (e.getKey() instanceof Field || e.getKey() instanceof ExprVar) {
                for (SimTuple t : e.getValue()) for (int i = t.arity() - 1; i >= 0; i--) {
                    String a = t.get(i).toString();
                    if (a.length() > 0 && a.charAt(0) == '"')
                        cacheSTRING = cacheSTRING.union(SimTuple.make(t.get(i)));
                }
            }
        }
        return cacheSTRING;
    }
    if (x == Sig.UNIV) {
        if (cacheUNIV == null) {
            cacheUNIV = SimTupleset.make(min, max);
            for (Map.Entry<Expr, SimTupleset> e : sfs.entrySet()) if (e.getKey() instanceof PrimSig && ((PrimSig) (e.getKey())).isTopLevel())
                cacheUNIV = cacheUNIV.union(e.getValue());
            cacheUNIV = cacheUNIV.union(visit(Sig.STRING));
        }
        return cacheUNIV;
    }
    Object ans = sfs.get(x);
    if (ans instanceof SimTupleset)
        return (SimTupleset) ans;
    else
        throw new ErrorFatal("Unknown sig " + x + " encountered during evaluation.");
}

Example 13 with Field

use of edu.mit.csail.sdg.ast.Sig.Field in project org.alloytools.alloy by AlloyTools.

the class A4Solution method toString.

/**
 * Dumps the Kodkod solution into String.
 */
@Override
public String toString() {
    if (!solved)
        return "---OUTCOME---\nUnknown.\n";
    if (eval == null)
        return "---OUTCOME---\nUnsatisfiable.\n";
    String answer = toStringCache;
    if (answer != null)
        return answer;
    Instance sol = eval.instance();
    StringBuilder sb = new StringBuilder();
    sb.append("---INSTANCE---\n" + "integers={");
    boolean firstTuple = true;
    for (IndexedEntry<TupleSet> e : sol.intTuples()) {
        if (firstTuple)
            firstTuple = false;
        else
            sb.append(", ");
        // No need to print e.index() since we've ensured the Int atom's
        // String representation is always equal to ""+e.index()
        Object atom = e.value().iterator().next().atom(0);
        sb.append(atom2name(atom));
    }
    sb.append("}\n");
    try {
        for (Sig s : sigs) {
            sb.append(s.label).append("=").append(eval(s)).append("\n");
            for (Field f : s.getFields()) sb.append(s.label).append("<:").append(f.label).append("=").append(eval(f)).append("\n");
        }
        for (ExprVar v : skolems) {
            sb.append("skolem ").append(v.label).append("=").append(eval(v)).append("\n");
        }
        return toStringCache = sb.toString();
    } catch (Err er) {
        return toStringCache = ("<Evaluator error occurred: " + er + ">");
    }
}

Example 14 with Field

use of edu.mit.csail.sdg.ast.Sig.Field in project org.alloytools.alloy by AlloyTools.

the class A4SolutionWriter method writesig.

/**
 * Write the given Sig.
 */
private A4TupleSet writesig(final Sig x) throws Err {
    A4TupleSet ts = null, ts2 = null;
    if (x == Sig.NONE)
        // should not happen, but we test for it anyway
        return null;
    if (sol == null && x.isMeta != null)
        // When writing the metamodel, skip the metamodel sigs!
        return null;
    if (x instanceof PrimSig)
        for (final PrimSig sub : children((PrimSig) x)) {
            A4TupleSet ts3 = writesig(sub);
            if (ts2 == null)
                ts2 = ts3;
            else
                ts2 = ts2.plus(ts3);
        }
    if (rep != null)
        rep.write(x);
    Util.encodeXMLs(out, "\n<sig label=\"", x.label, "\" ID=\"", map(x));
    if (x instanceof PrimSig && x != Sig.UNIV)
        Util.encodeXMLs(out, "\" parentID=\"", map(((PrimSig) x).parent));
    if (x.builtin)
        out.print("\" builtin=\"yes");
    if (x.isAbstract != null)
        out.print("\" abstract=\"yes");
    if (x.isOne != null)
        out.print("\" one=\"yes");
    if (x.isLone != null)
        out.print("\" lone=\"yes");
    if (x.isSome != null)
        out.print("\" some=\"yes");
    if (x.isPrivate != null)
        out.print("\" private=\"yes");
    if (x.isMeta != null)
        out.print("\" meta=\"yes");
    if (x instanceof SubsetSig && ((SubsetSig) x).exact)
        out.print("\" exact=\"yes");
    if (x.isEnum != null)
        out.print("\" enum=\"yes");
    out.print("\">\n");
    try {
        if (sol != null && x != Sig.UNIV && x != Sig.SIGINT && x != Sig.SEQIDX) {
            ts = (sol.eval(x));
            for (A4Tuple t : ts.minus(ts2)) Util.encodeXMLs(out, "   <atom label=\"", t.atom(0), "\"/>\n");
        }
    } catch (Throwable ex) {
        throw new ErrorFatal("Error evaluating sig " + x.label, ex);
    }
    if (x instanceof SubsetSig)
        for (Sig p : ((SubsetSig) x).parents) Util.encodeXMLs(out, "   <type ID=\"", map(p), "\"/>\n");
    out.print("</sig>\n");
    for (Field field : x.getFields()) writeField(field);
    return ts;
}

Example 15 with Field

use of edu.mit.csail.sdg.ast.Sig.Field in project org.alloytools.alloy by AlloyTools.

the class CompModule method rejectNameClash.

// ============================================================================================================================//
private static void rejectNameClash(final List<CompModule> modules) throws Err {
    // The Alloy language forbids two overlapping sigs from having fields
    // with the same name.
    // In other words: if 2 fields have the same name, then their type's
    // first column must not intersect.
    final Map<String, List<Field>> fieldname2fields = new LinkedHashMap<String, List<Field>>();
    for (CompModule m : modules) {
        for (Sig sig : m.sigs.values()) {
            for (Field field : sig.getFields()) {
                List<Field> peers = fieldname2fields.get(field.label);
                if (peers == null) {
                    peers = new ArrayList<Field>();
                    fieldname2fields.put(field.label, peers);
                }
                for (Field field2 : peers) if (field.type().firstColumnOverlaps(field2.type()))
                    throw new ErrorType(field.pos, "Two overlapping signatures cannot have\n" + "two fields with the same name \"" + field.label + "\":\n\n1) one is in sig \"" + field.sig + "\"\n" + field.pos + "\n\n2) the other is in sig \"" + field2.sig + "\"\n" + field2.pos);
                peers.add(field);
            }
        }
    }
}