Java Code Examples for kodkod.ast.Variable#declare()
The following examples show how to use
kodkod.ast.Variable#declare() .
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Example 1
| Source File: AbstractReplacer.java From org.alloytools.alloy with Apache License 2.0 | 5 votes |
|
/**
* Calls lookup(decl) and returns the cached value, if any. If a replacement has
* not been cached, visits the declaration's variable and expression. If nothing
* changes, the argument is cached and returned, otherwise a replacement Decl
* object is cached and returned.
*
* @return { d: Declaration | d.variable = declaration.variable.accept(delegate)
* && d.multiplicity = decl.multiplicity && d.expression =
* declaration.expression.accept(delegate)
*/
@Override
public Decl visit(Decl decl) {
Decl ret = lookup(decl);
if (ret != null)
return ret;
final Variable variable = (Variable) decl.variable().accept(delegate);
final Expression expression = decl.expression().accept(delegate);
ret = (variable == decl.variable() && expression == decl.expression()) ? decl : variable.declare(decl.multiplicity(), expression);
return cache(decl, ret);
}
Example 2
| Source File: SkolemizationTest.java From org.alloytools.alloy with Apache License 2.0 | 5 votes |
|
private final void testNoSkolems(Multiplicity mult) {
final Variable v = Variable.unary("v");
final Decl d = v.declare(mult, r1a);
testNoSkolems(d, v.join(r2a).some().forAll(d).not());
testNoSkolems(d, v.join(r2a).some().forSome(d));
}
Example 3
| Source File: SkolemizationTest.java From org.alloytools.alloy with Apache License 2.0 | 5 votes |
|
private final void testDeepSkolems(Multiplicity mult) {
final Variable va = Variable.unary("va");
final Variable vb = Variable.unary("vb");
final Variable vc = Variable.unary("vc");
final Variable vd = Variable.unary("vd");
final Set<String> skolems = new HashSet<String>(4);
Decl da1 = va.oneOf(r1a);
Decl db = vb.declare(mult, r1b);
Decl dc = vc.declare(mult, r1a);
Decl dc1 = vc.oneOf(r1a);
Decl dd = vd.declare(mult, r1b);
Decl dd1 = vd.oneOf(r1b);
skolems.add("$" + vb.name());
Instance inst = solve(va.in(vb.join(r2b)).forSome(db).forAll(da1));
assertSkolems(bounds, inst, skolems);
skolems.add("$" + vc.name());
inst = solve(va.in(vb.join(r2b).union(vd.join(r2b)).union(vc)).forSome(db).forAll(da1).forSome(dc).forAll(dd1));
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(vb.join(r2b).union(vd.join(r2b)).union(vc)).forSome(db).forSome(dc).forAll(da1.and(dd1)));
assertSkolems(bounds, inst, skolems);
skolems.add("$" + vd.name());
inst = solve(va.in(vb.join(r2b).union(vd.join(r2b)).union(vc)).forSome(db).forAll(da1).forSome(dc).not().forAll(dd).not());
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(vb.join(r2b).union(vd.join(r2b)).union(vc)).forAll(dc).forAll(db).forSome(da1).not().forAll(dd1));
skolems.remove("$" + vd.name());
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(vb.join(r2b).union(vd.join(r2b)).union(vc)).forSome(db).forAll(dc1).forAll(da1).forAll(dd1));
skolems.remove("$" + vc.name());
assertSkolems(bounds, inst, skolems);
}
Example 4
| Source File: AbstractReplacer.java From kodkod with MIT License | 5 votes |
|
/**
* Calls lookup(decl) and returns the cached value, if any.
* If a replacement has not been cached, visits the declaration's
* variable and expression. If nothing changes, the argument is cached and
* returned, otherwise a replacement Decl object is cached and returned.
* @return { d: Declaration | d.variable = declaration.variable.accept(this) &&
* d.multiplicity = decl.multiplicity &&
* d.expression = declaration.expression.accept(this)
*/
public Decl visit(Decl decl) {
Decl ret = lookup(decl);
if (ret!=null) return ret;
final Variable variable = (Variable) decl.variable().accept(this);
final Expression expression = decl.expression().accept(this);
ret = (variable==decl.variable() && expression==decl.expression()) ?
decl : variable.declare(decl.multiplicity(), expression);
return cache(decl,ret);
}
Example 5
| Source File: SkolemizationTest.java From kodkod with MIT License | 5 votes |
|
private final void testNoSkolems(Multiplicity mult) {
final Variable v = Variable.unary("v");
final Decl d = v.declare(mult, r1a);
testNoSkolems(d, v.join(r2a).some().forAll(d).not());
testNoSkolems(d, v.join(r2a).some().forSome(d));
}
Example 6
| Source File: SkolemizationTest.java From org.alloytools.alloy with Apache License 2.0 | 4 votes |
|
private final void testSkolems(Multiplicity mult) {
final Variable va = Variable.unary("va");
final Variable vb = Variable.unary("vb");
final Set<String> skolems = new HashSet<String>(4);
Decl da = va.declare(mult, r1a);
Decl db = vb.declare(mult, r1b);
skolems.add("$" + va.name());
Instance inst = solve(va.in(r1b.join(r2b)).forAll(da).not());
assertSkolems(bounds, inst, skolems);
inst = solve((r2b.some().implies(va.in(r1b.join(r2b)).forAll(da))).not());
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(r1b.join(r2b)).forSome(da));
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(r1b.join(r2b)).forSome(da).and(va.in(r1b).not().forAll(mult == Multiplicity.ONE ? da : va.oneOf(r1a))));
assertSkolems(bounds, inst, skolems);
final Expression e0 = va.join(r2a);
final Formula f0 = e0.some().forSome(va.oneOf(r1a));
final Formula f1 = e0.no().forAll(va.oneOf(r2a.join(r1b)));
inst = solve(f0.and(f1));
assertSkolems(bounds, inst, skolems);
skolems.add("$" + vb.name());
inst = solve(va.in(vb.join(r2b)).forSome(da.and(vb.oneOf(va.join(r2a)))));
assertSkolems(bounds, inst, skolems);
inst = solve((va.in(vb.join(r2b)).forAll(vb.oneOf(va.join(r2a))).forAll(da)).not());
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(vb.join(r2b)).forAll(da.and(db)).not());
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(vb.join(r2b)).forSome(da.and(db)));
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(r1b.join(r2b)).forSome(da).and(r1b.in(vb).forAll(db).not()));
assertSkolems(bounds, inst, skolems);
}
Example 7
| Source File: SkolemizationTest.java From kodkod with MIT License | 4 votes |
|
private final void testDeepSkolems(Multiplicity mult) {
final Variable va = Variable.unary("va");
final Variable vb = Variable.unary("vb");
final Variable vc = Variable.unary("vc");
final Variable vd = Variable.unary("vd");
final Set<String> skolems = new HashSet<String>(4);
Decl da1 = va.oneOf(r1a);
Decl db = vb.declare(mult, r1b);
Decl dc = vc.declare(mult, r1a);
Decl dc1 = vc.oneOf(r1a);
Decl dd = vd.declare(mult, r1b);
Decl dd1 = vd.oneOf(r1b);
skolems.add("$"+vb.name());
Instance inst = solve(va.in(vb.join(r2b)).forSome(db).forAll(da1));
assertSkolems(bounds, inst, skolems);
skolems.add("$"+vc.name());
inst = solve(va.in(vb.join(r2b).union(vd.join(r2b)).union(vc)).
forSome(db).forAll(da1).forSome(dc).forAll(dd1));
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(vb.join(r2b).union(vd.join(r2b)).union(vc)).
forSome(db).forSome(dc).forAll(da1.and(dd1)));
assertSkolems(bounds, inst, skolems);
skolems.add("$"+vd.name());
inst = solve(va.in(vb.join(r2b).union(vd.join(r2b)).union(vc)).
forSome(db).forAll(da1).forSome(dc).not().forAll(dd).not());
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(vb.join(r2b).union(vd.join(r2b)).union(vc)).
forAll(dc).forAll(db).forSome(da1).not().forAll(dd1));
skolems.remove("$"+vd.name());
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(vb.join(r2b).union(vd.join(r2b)).union(vc)).
forSome(db).forAll(dc1).forAll(da1).forAll(dd1));
skolems.remove("$"+vc.name());
assertSkolems(bounds, inst, skolems);
}
Example 8
| Source File: JenaTranslator.java From quetzal with Eclipse Public License 2.0 | 4 votes |
|
private Pair<Formula, Decls> scopeInternal(Formula f, Expression dynamicBinding, Collection<Variable> projectedVars, Collection<Variable> outerBound) {
Decls ds = null, eds = null;
Set<Variable> used = ASTUtils.gatherVariables(f);
if (dynamicBinding != null) {
used.addAll(ASTUtils.gatherVariables(dynamicBinding));
}
List<Variable> orderedVars = sortVars(used);
for(Variable v : orderedVars) {
Expression r;
if (context.getDomain(v) != null ) {
r = context.getDomain(v).bound();
if (r == null) {
r = NULL;
}
} else {
r = NULL;
}
if (outerBound.contains(v)) {
continue;
}
Decl d = v.declare(Multiplicity.ONE, context.getStaticBinding().contains(v)? r: r.union(NULL));
if (! projectedVars.contains(v)) {
eds = eds==null? d: eds.and(d);
} else if (ds == null) {
ds = d;
} else {
ds = ds.and(d);
}
if (! context.getStaticBinding().contains(v)) {
if (context.getDynamicBinding() == null) {
f = f.and(v.eq(NULL));
} else {
f = f.and(varExpr(v).in(context.getDynamicBinding()).or(v.eq(NULL)));
}
}
}
if (eds != null) {
f = f.forSome(eds);
}
if (DEBUG) System.err.println("scope: " + eds + " -- " + ds);
return Pair.make(f, ds);
}
Example 9
| Source File: SkolemizationTest.java From kodkod with MIT License | 2 votes |
|
private final void testSkolems(Multiplicity mult) {
final Variable va = Variable.unary("va");
final Variable vb = Variable.unary("vb");
final Set<String> skolems = new HashSet<String>(4);
Decl da = va.declare(mult, r1a);
Decl db = vb.declare(mult, r1b);
skolems.add("$"+va.name());
Instance inst = solve(va.in(r1b.join(r2b)).forAll(da).not());
assertSkolems(bounds, inst, skolems);
inst = solve((r2b.some().implies(va.in(r1b.join(r2b)).forAll(da))).not());
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(r1b.join(r2b)).forSome(da));
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(r1b.join(r2b)).forSome(da).and(va.in(r1b).not().forAll(mult==Multiplicity.ONE ? da : va.oneOf(r1a))));
assertSkolems(bounds, inst, skolems);
final Expression e0 = va.join(r2a);
final Formula f0 = e0.some().forSome(va.oneOf(r1a));
final Formula f1 = e0.no().forAll(va.oneOf(r2a.join(r1b)));
inst = solve(f0.and(f1));
assertSkolems(bounds, inst, skolems);
skolems.add("$"+vb.name());
inst = solve(va.in(vb.join(r2b)).forSome(da.and(vb.oneOf(va.join(r2a)))));
assertSkolems(bounds, inst, skolems);
inst = solve((va.in(vb.join(r2b)).forAll(vb.oneOf(va.join(r2a))).forAll(da)).not());
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(vb.join(r2b)).forAll(da.and(db)).not());
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(vb.join(r2b)).forSome(da.and(db)));
assertSkolems(bounds, inst, skolems);
inst = solve(va.in(r1b.join(r2b)).forSome(da).and(r1b.in(vb).forAll(db).not()));
assertSkolems(bounds, inst, skolems);
}
