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

Example 1 with XMLNode

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

the class A4SolutionReader method parseType.

/**
 * Parse type.
 */
private Expr parseType(XMLNode node) throws IOException, Err {
    Expr expr = null;
    if (!node.is("types"))
        throw new IOException("<types>...</type> expected");
    for (XMLNode n : node) if (n.is("type")) {
        Sig sig = parseSig(n.getAttribute("ID"), 0);
        if (expr == null)
            expr = sig;
        else
            expr = expr.product(sig);
    }
    if (expr == null)
        throw new IOException("<type ID=../> expected");
    return expr;
}

Example 2 with XMLNode

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

the class A4SolutionReader method parseSkolem.

/**
 * Parse skolem.
 */
private ExprVar parseSkolem(String id) throws IOException, Err {
    final XMLNode node = nmap.get(id);
    if (node == null)
        throw new IOException("Unknown ID " + id + " encountered.");
    if (!node.is("skolem"))
        throw new IOException("ID " + id + " is not a skolem.");
    String label = label(node);
    Expr type = null;
    for (XMLNode sub : node) if (sub.is("types")) {
        Expr t = parseType(sub);
        if (type == null)
            type = t;
        else
            type = type.plus(t);
    }
    int arity;
    if (type == null || (arity = type.type().arity()) < 1)
        throw new IOException("Skolem " + label + " is maltyped.");
    ExprVar var = ExprVar.make(Pos.UNKNOWN, label, type.type());
    TupleSet ts = parseTuples(node, arity);
    expr2ts.put(var, ts);
    return var;
}

Example 3 with XMLNode

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

the class A4SolutionReader method parseTuple.

/**
 * Parse tuple.
 */
private Tuple parseTuple(XMLNode tuple, int arity) throws Err {
    Tuple ans = null;
    try {
        for (XMLNode sub : tuple) if (sub.is("atom")) {
            Tuple x = factory.tuple(sub.getAttribute("label"));
            if (ans == null)
                ans = x;
            else
                ans = ans.product(x);
        }
        if (ans == null)
            throw new ErrorFatal("Expecting: <tuple> <atom label=\"..\"/> .. </tuple>");
        if (ans.arity() != arity)
            throw new ErrorFatal("Expecting: tuple of arity " + arity + " but got tuple of arity " + ans.arity());
        return ans;
    } catch (Throwable ex) {
        throw new ErrorFatal("Expecting: <tuple> <atom label=\"..\"/> .. </tuple>", ex);
    }
}

Example 4 with XMLNode

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

the class A4SolutionReader method parseField.

/**
 * Parse field.
 */
private Field parseField(String id) throws IOException, Err {
    final XMLNode node = nmap.get(id);
    if (node == null)
        throw new IOException("Unknown FieldID " + id + " encountered.");
    if (!node.is("field"))
        throw new IOException("ID " + id + " is not a field.");
    String label = label(node);
    Pos isPrivate = yes(node, "private") ? Pos.UNKNOWN : null;
    Pos isMeta = yes(node, "meta") ? Pos.UNKNOWN : null;
    Expr type = null;
    for (XMLNode sub : node) if (sub.is("types")) {
        Expr t = parseType(sub);
        if (type == null)
            type = t;
        else
            type = type.plus(t);
    }
    int arity;
    if (type == null || (arity = type.type().arity()) < 2)
        throw new IOException("Field " + label + " is maltyped.");
    String parentID = node.getAttribute("parentID");
    Sig parent = id2sig.get(parentID);
    if (parent == null)
        throw new IOException("ID " + parentID + " is not a sig.");
    Field field = null;
    for (Field f : parent.getFields()) if (f.label.equals(label) && f.type().arity() == arity && choices.contains(f)) {
        field = f;
        choices.remove(f);
        break;
    }
    if (field == null)
        field = parent.addTrickyField(Pos.UNKNOWN, isPrivate, null, null, isMeta, new String[] { label }, UNIV.join(type))[0];
    TupleSet ts = parseTuples(node, arity);
    expr2ts.put(field, ts);
    return field;
}

Example 5 with XMLNode

use of edu.mit.csail.sdg.alloy4.XMLNode 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"));
}