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

Example 1 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(ExprVar x) throws Err {
    Object ans = env.get(x);
    if (ans == null)
        ans = sfs.get(x);
    if (ans == null) {
        SimAtom a = SimAtom.make(x.label);
        if (!hasAtom(a))
            throw new ErrorFatal(x.pos, "Variable \"" + x + "\" is not bound to a legal value during translation.\n");
        ans = SimTupleset.make(SimTuple.make(a));
    }
    return ans;
}

Example 2 with ErrorFatal

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

the class A4Solution method shrink.

/**
 * Shrink the bounds for the given relation; throws an exception if the new
 * bounds is not sameAs/subsetOf the old bounds.
 */
void shrink(Relation relation, TupleSet lowerBound, TupleSet upperBound) throws Err {
    if (solved)
        throw new ErrorFatal("Cannot shrink a Kodkod relation since solve() has completed.");
    TupleSet oldL = bounds.lowerBound(relation);
    TupleSet oldU = bounds.upperBound(relation);
    if (oldU.containsAll(upperBound) && upperBound.containsAll(lowerBound) && lowerBound.containsAll(oldL)) {
        bounds.bound(relation, lowerBound, upperBound);
    } else {
        throw new ErrorAPI("Inconsistent bounds shrinking on relation: " + relation);
    }
}

Example 3 with ErrorFatal

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

the class A4Solution method k2pos.

/**
 * Associates the Kodkod formula to a particular Alloy Expr (if the Kodkod
 * formula is not already associated with an Alloy Expr or Alloy Pos)
 */
Formula k2pos(Formula formula, Expr expr) throws Err {
    if (solved)
        throw new ErrorFatal("Cannot alter the k->pos mapping since solve() has completed.");
    if (formula == null || expr == null || k2pos.containsKey(formula))
        return formula;
    k2pos.put(formula, expr);
    if (formula instanceof BinaryFormula) {
        BinaryFormula b = (BinaryFormula) formula;
        if (b.op() == FormulaOperator.AND) {
            k2pos(b.left(), expr);
            k2pos(b.right(), expr);
        }
    }
    return formula;
}

Example 4 with ErrorFatal

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

the class A4Solution method addSkolem.

/**
 * Add a new skolem to this solution and associate it with the given expression.
 * <br>
 * The expression must contain only constant Relations or Relations that are
 * already bound in this solution.
 */
private ExprVar addSkolem(String label, Type type, Expression expr) throws Err {
    if (solved)
        throw new ErrorFatal("Cannot add an additional skolem since solve() has completed.");
    int a = type.arity();
    if (a < 1)
        throw new ErrorFatal("Skolem " + label + " must be associated with a relational value.");
    if (a != expr.arity())
        throw new ErrorFatal("Skolem " + label + " must be associated with an " + a + "-ary relational value.");
    ExprVar v = ExprVar.make(Pos.UNKNOWN, label, type);
    a2k.put(v, expr);
    skolems.add(v);
    return v;
}

Example 5 with ErrorFatal

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

the class A4Solution method k2pos.

/**
 * Associates the Kodkod formula to a particular Alloy Pos (if the Kodkod
 * formula is not already associated with an Alloy Expr or Alloy Pos)
 */
Formula k2pos(Formula formula, Pos pos) throws Err {
    if (solved)
        throw new ErrorFatal("Cannot alter the k->pos mapping since solve() has completed.");
    if (formula == null || pos == null || pos == Pos.UNKNOWN || k2pos.containsKey(formula))
        return formula;
    k2pos.put(formula, pos);
    if (formula instanceof BinaryFormula) {
        BinaryFormula b = (BinaryFormula) formula;
        if (b.op() == FormulaOperator.AND) {
            k2pos(b.left(), pos);
            k2pos(b.right(), pos);
        }
    }
    return formula;
}