Examples with Chc catdata.Chc used on opensource projects

Example 1 with Chc

use of catdata.Chc in project fql by CategoricalData.

the class SchExpRaw method eval.

// TODO: aql printing of contexts broken when conitain choices
@SuppressWarnings("unused")
@Override
public synchronized Schema<Ty, En, Sym, Fk, Att> eval(AqlEnv env) {
    TypeSide<Ty, Sym> ts = typeSide.eval(env);
    Collage<Ty, En, Sym, Fk, Att, Void, Void> col = new Collage<>(ts.collage());
    Set<Triple<Pair<Var, En>, Term<Ty, En, Sym, Fk, Att, Void, Void>, Term<Ty, En, Sym, Fk, Att, Void, Void>>> eqs0 = new HashSet<>();
    for (String k : imports) {
        @SuppressWarnings("unchecked") Schema<Ty, En, Sym, Fk, Att> v = env.defs.schs.get(k);
        col.addAll(v.collage());
        eqs0.addAll(v.eqs);
    }
    col.ens.addAll(ens.stream().map(x -> new En(x)).collect(Collectors.toList()));
    col.fks.putAll(conv1(fks));
    col.atts.putAll(conv2(atts));
    for (Quad<String, String, RawTerm, RawTerm> eq : t_eqs) {
        try {
            Map<String, Chc<Ty, En>> ctx = Util.singMap(eq.first, eq.second == null ? null : Chc.inRight(new En(eq.second)));
            Triple<Ctx<Var, Chc<Ty, En>>, Term<Ty, En, Sym, Fk, Att, Gen, Sk>, Term<Ty, En, Sym, Fk, Att, Gen, Sk>> eq0 = RawTerm.infer1x(ctx, eq.third, eq.fourth, null, col.convert(), "", ts.js).first3();
            Chc<Ty, En> v = eq0.first.get(new Var(eq.first));
            if (v.left) {
                throw new RuntimeException(eq.first + " has type " + v.l + " which is not an entity");
            }
            En t = v.r;
            eqs0.add(new Triple<>(new Pair<>(new Var(eq.first), t), eq0.second.convert(), eq0.third.convert()));
        } catch (RuntimeException ex) {
            ex.printStackTrace();
            throw new LocException(find("obs equations", eq), "In equation " + eq.third + " = " + eq.fourth + ", " + ex.getMessage());
        }
    }
    for (Pair<List<String>, List<String>> eq : p_eqs) {
        try {
            String vv = "v";
            Var var = new Var(vv);
            Map<String, Chc<Ty, En>> ctx = Util.singMap(vv, null);
            RawTerm lhs = RawTerm.fold(col.fks.keySet(), col.ens, eq.first, vv);
            RawTerm rhs = RawTerm.fold(col.fks.keySet(), col.ens, eq.second, vv);
            Triple<Ctx<Var, Chc<Ty, En>>, Term<Ty, En, Sym, Fk, Att, Gen, Sk>, Term<Ty, En, Sym, Fk, Att, Gen, Sk>> eq0 = RawTerm.infer1x(ctx, lhs, rhs, null, col.convert(), "", ts.js).first3();
            Chc<Ty, En> v = eq0.first.get(var);
            if (v.left) {
                throw new RuntimeException("the equation's source " + eq.first + " is type " + v.l + " which is not an entity");
            }
            En t = v.r;
            if (eq0.first.size() != 1) {
                throw new RuntimeException("java constants cannot be used ");
            }
            eqs0.add(new Triple<>(new Pair<>(var, t), eq0.second.convert(), eq0.third.convert()));
        } catch (RuntimeException ex) {
            ex.printStackTrace();
            throw new LocException(find("path equations", eq), "In equation " + Util.sep(eq.first, ".") + " = " + Util.sep(eq.second, ".") + ", " + ex.getMessage());
        }
    }
    for (Triple<Pair<Var, En>, Term<Ty, En, Sym, Fk, Att, Void, Void>, Term<Ty, En, Sym, Fk, Att, Void, Void>> eq : eqs0) {
        col.eqs.add(new Eq<>(new Ctx<>(eq.first).inRight(), eq.second, eq.third));
    }
    AqlOptions strat = new AqlOptions(options, col, env.defaults);
    AqlOptions s = new AqlOptions(Util.singMap(AqlOption.prover.toString(), ProverName.fail.toString()), col, env.defaults);
    // forces type checking before prover construction
    new Schema<>(ts, col.ens, col.atts.map, col.fks.map, eqs0, AqlProver.create(s, col, ts.js), false);
    Schema<Ty, En, Sym, Fk, Att> ret = new Schema<>(ts, col.ens, col.atts.map, col.fks.map, eqs0, AqlProver.create(strat, col, ts.js), !((Boolean) strat.getOrDefault(AqlOption.allow_java_eqs_unsafe)));
    return ret;
}

Example 2 with Chc

use of catdata.Chc in project fql by CategoricalData.

the class QueryExpRaw method eval.

@Override
public Query<Ty, En, Sym, Fk, Att, En, Fk, Att> eval(AqlEnv env) {
    Schema<Ty, En, Sym, Fk, Att> src0 = src.eval(env);
    Schema<Ty, En, Sym, Fk, Att> dst0 = dst.eval(env);
    Ctx<En, Triple<Ctx<Var, En>, Collection<Eq<Ty, En, Sym, Fk, Att, Var, Var>>, AqlOptions>> ens0 = new Ctx<>();
    Ctx<Att, Term<Ty, En, Sym, Fk, Att, Var, Var>> atts0 = new Ctx<>();
    Ctx<Fk, Pair<Ctx<Var, Term<Void, En, Void, Fk, Void, Var, Void>>, Boolean>> fks0 = new Ctx<>();
    Ctx<Var, Ty> xxx = new Ctx<>();
    Ctx<Var, Term<Ty, Void, Sym, Void, Void, Void, Void>> yyy = new Ctx<>();
    for (String k : imports) {
        @SuppressWarnings("unchecked") Query<Ty, En, Sym, Fk, Att, En, Fk, Att> v = env.defs.qs.get(k);
        for (Var var : v.params.keySet()) {
            // allow benign collisions
            xxx.map.put(var, v.params.get(var));
        }
        for (Var var : v.consts.keySet()) {
            yyy.map.put(var, v.consts.get(var));
        }
        for (En En : v.ens.keySet()) {
            ens0.put(En, new Triple<>(v.ens.get(En).gens, v.ens.get(En).eqs, v.ens.get(En).options));
        }
        for (Att Att : v.atts.keySet()) {
            atts0.put(Att, v.atts.get(Att));
        }
        for (Fk Fk : v.fks.keySet()) {
            fks0.put(Fk, new Pair<>(v.fks.get(Fk).gens(), v.doNotValidate.get(Fk)));
        }
    }
    Ctx<En, Collage<Ty, En, Sym, Fk, Att, Var, Var>> cols = new Ctx<>();
    for (Block p : blocks) {
        try {
            if (!dst0.ens.contains(p.en)) {
                throw new RuntimeException("the proposed target entity " + p.en + " does not actually appear in the target schema");
            }
            processBlock(options, env, src0, ens0, cols, p, params);
        } catch (RuntimeException ex) {
            ex.printStackTrace();
            throw new LocException(b1.get(p.en), "In block for target entity " + p.en + ", " + ex.getMessage());
        }
        for (Pair<catdata.aql.exp.SchExpRaw.Att, RawTerm> pp : p.atts) {
            try {
                processAtt(src0, dst0, ens0, atts0, cols, pp, params);
            } catch (Exception ex) {
                ex.printStackTrace();
                throw new LocException(b3.get(pp.first), "In return clause for " + pp.first + ", " + ex.getMessage());
            }
        }
    }
    // two loops bc need stuff in en to do this part
    for (Block p : blocks) {
        for (Pair<catdata.aql.exp.SchExpRaw.Fk, Trans> pp : p.fks) {
            try {
                Ctx<Var, Term<Void, En, Void, Fk, Void, Var, Void>> trans = new Ctx<>();
                for (Pair<Var, RawTerm> v : pp.second.gens) {
                    Ctx<String, Chc<Ty, En>> ctx = unVar(ens0.get(dst0.fks.get(pp.first).first).first.inRight());
                    Collage<Ty, En, Sym, Fk, Att, Var, Var> col = cols.get(dst0.fks.get(pp.first).first);
                    Chc<Ty, En> required = Chc.inRight(ens0.get(dst0.fks.get(pp.first).second).first.get(v.first));
                    Term<catdata.aql.exp.TyExpRaw.Ty, catdata.aql.exp.SchExpRaw.En, catdata.aql.exp.TyExpRaw.Sym, catdata.aql.exp.SchExpRaw.Fk, catdata.aql.exp.SchExpRaw.Att, Gen, Sk> term = RawTerm.infer1x(ctx.map, v.second, null, required, col.convert(), "in foreign key " + pp.first.str + ", ", src0.typeSide.js).second;
                    trans.put(v.first, freeze(term.convert(), params).convert());
                }
                boolean doNotCheckEqs = (Boolean) new AqlOptions(pp.second.options, null, env.defaults).getOrDefault(AqlOption.dont_validate_unsafe);
                fks0.put(pp.first, new Pair<>(trans, doNotCheckEqs));
            } catch (RuntimeException ex) {
                ex.printStackTrace();
                throw new LocException(b2.get(pp.first), ex.getMessage());
            }
        }
    }
    boolean doNotCheckEqs = (Boolean) new AqlOptions(options, null, env.defaults).getOrDefault(AqlOption.dont_validate_unsafe);
    boolean elimRed = (Boolean) new AqlOptions(options, null, env.defaults).getOrDefault(AqlOption.query_remove_redundancy);
    for (String s : params.keySet()) {
        xxx.put(new Var(s), new Ty(params.get(s)));
    }
    for (String s : consts.keySet()) {
        Chc<Ty, En> required = Chc.inLeft(xxx.get(new Var(s)));
        Term<catdata.aql.exp.TyExpRaw.Ty, catdata.aql.exp.SchExpRaw.En, catdata.aql.exp.TyExpRaw.Sym, catdata.aql.exp.SchExpRaw.Fk, catdata.aql.exp.SchExpRaw.Att, Gen, Sk> term = RawTerm.infer1x(new HashMap<>(), consts.get(s), null, required, src0.collage().convert(), "", src0.typeSide.js).second;
        yyy.put(new Var(s), term.convert());
    }
    return Query.makeQuery2(xxx, yyy, ens0, atts0, fks0, src0, dst0, doNotCheckEqs, elimRed);
}

Example 3 with Chc

use of catdata.Chc in project fql by CategoricalData.

the class ToJdbcPragmaInstance method deleteThenCreate.

private void deleteThenCreate(Connection conn) throws SQLException {
    Map<En, Triple<List<Chc<Fk, Att>>, List<String>, List<String>>> m = I.schema().toSQL(prefix, "integer", "id", truncate, Object::toString, len);
    Statement stmt = conn.createStatement();
    for (En en : I.schema().ens) {
        for (String x : m.get(en).second) {
            // TODO aql drop foreign keys here first
            // System.out.println(x);
            // .replace("Varchar", "Varchar(" + len + ")").replace("Nvarchar", "Nvarchar(" + len + ")").replace("varchar", "Varchar(" + len + ")"));
            stmt.execute(x);
        }
    }
    stmt.close();
}

Example 4 with Chc

use of catdata.Chc in project fql by CategoricalData.

the class TransExpRaw method eval.

@Override
public synchronized Transform<Ty, En, Sym, Fk, Att, Gen, Sk, Gen, Sk, String, String, String, String> eval(AqlEnv env) {
    Instance<Ty, En, Sym, Fk, Att, Gen, Sk, String, String> src0 = src.eval(env);
    Instance<Ty, En, Sym, Fk, Att, Gen, Sk, String, String> dst0 = dst.eval(env);
    // Collage<String, String, String, String, String, Void, Void> scol = new Collage<>(src0);
    Collage<Ty, En, Sym, Fk, Att, Gen, Sk> dcol = new Collage<>(dst0.collage());
    Map<Gen, Term<Void, En, Void, Fk, Void, Gen, Void>> gens0 = new HashMap<>();
    Map<Sk, Term<Ty, En, Sym, Fk, Att, Gen, Sk>> sks0 = new HashMap<>();
    for (String k : imports) {
        @SuppressWarnings("unchecked") Transform<Ty, En, Sym, Fk, Att, Gen, Sk, Gen, Sk, String, String, String, String> v = env.defs.trans.get(k);
        Util.putAllSafely(gens0, v.gens().map);
        Util.putAllSafely(sks0, v.sks().map);
    }
    for (Pair<String, RawTerm> gen : gens) {
        try {
            RawTerm term = gen.second;
            Map<String, Chc<Ty, En>> ctx = new HashMap<>();
            Chc<Ty, En> required;
            if (src0.gens().containsKey(new Gen(gen.first)) && src0.sks().containsKey(new Sk(gen.first))) {
                throw new RuntimeException(gen.first + " is ambiguous");
            } else if (src0.gens().containsKey(new Gen(gen.first))) {
                required = Chc.inRight(src0.gens().get(new Gen(gen.first)));
            } else if (src0.sks().containsKey(new Sk(gen.first))) {
                required = Chc.inLeft(src0.sks().get(new Sk(gen.first)));
            } else {
                throw new RuntimeException(gen.first + " is not a source generator/labelled null");
            }
            Term<Ty, En, Sym, Fk, Att, Gen, Sk> term0 = RawTerm.infer1x(ctx, term, null, required, dcol, "", src0.schema().typeSide.js).second;
            if (required.left) {
                Util.putSafely(sks0, new Sk(gen.first), term0.convert());
            } else {
                Util.putSafely(gens0, new Gen(gen.first), term0.convert());
            }
        } catch (RuntimeException ex) {
            ex.printStackTrace();
            throw new LocException(find("generators", gen), "In transform for " + gen.first + ", " + ex.getMessage());
        }
    }
    AqlOptions ops = new AqlOptions(options, null, env.defaults);
    LiteralTransform<Ty, En, Sym, Fk, Att, Gen, Sk, Gen, Sk, String, String, String, String> ret = new LiteralTransform<Ty, En, Sym, Fk, Att, Gen, Sk, Gen, Sk, String, String, String, String>(gens0, sks0, src0, dst0, (Boolean) ops.getOrDefault(AqlOption.dont_validate_unsafe));
    return ret;
}

Example 5 with Chc

use of catdata.Chc in project fql by CategoricalData.

the class CatOps method visit.

@Override
public Functor visit(FQLPPProgram env, FinalConst ic) {
    CatExp e = resolve(env, ic.src);
    if (!(e instanceof Const)) {
        throw new RuntimeException("Can only create functors from finitely-presented categories.");
    }
    Const c = (Const) e;
    Category cat = c.accept(env, this);
    Signature<String, String> sig = new Signature<>(c.nodes, c.arrows, c.eqs);
    Category target = ic.C.accept(env, this);
    Map<Node, Functor> nm = new HashMap<>();
    for (Node n : sig.nodes) {
        FunctorExp kkk = ic.nm.get(n.name);
        if (kkk == null) {
            throw new RuntimeException("Missing node mapping from " + n);
        }
        Functor F = kkk.accept(env, this);
        nm.put(n, F);
    }
    Map<Edge, Transform> em = new HashMap<>();
    for (Edge n : sig.edges) {
        TransExp chc = ic.em.get(n.name);
        if (chc == null) {
            throw new RuntimeException("Missing edge mapping from " + n);
        }
        em.put(n, chc.accept(env, this));
    }
    FUNCTION fff = p0 -> {
        Path p = (Path) p0;
        Object fn = target.identity(nm.get(p.source));
        for (Object nnn : p.path) {
            Edge n = (Edge) nnn;
            fn = target.compose(fn, em.get(n));
        }
        return fn;
    };
    return new Functor(cat, target, nm::get, fff);
}