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Xta subproject in the Theta model checking framework

There is a newer version: 6.8.5

/*
 *  Copyright 2024 Budapest University of Technology and Economics
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 */
package hu.bme.mit.theta.xta.dsl;

import hu.bme.mit.theta.common.dsl.Env;
import hu.bme.mit.theta.common.dsl.Scope;
import hu.bme.mit.theta.core.type.Expr;
import hu.bme.mit.theta.core.type.Type;
import hu.bme.mit.theta.xta.dsl.gen.XtaDslBaseVisitor;
import hu.bme.mit.theta.xta.dsl.gen.XtaDslParser.CompoundInitialiserContext;
import hu.bme.mit.theta.xta.dsl.gen.XtaDslParser.InitialiserContext;
import hu.bme.mit.theta.xta.dsl.gen.XtaDslParser.SimpleInitialiserContext;

import static com.google.common.base.Preconditions.checkArgument;
import static com.google.common.base.Preconditions.checkNotNull;

final class XtaInitialiser {

    private final Scope scope;
    private final InitialiserContext context;

    public XtaInitialiser(final Scope scope, final InitialiserContext context) {
        this.scope = checkNotNull(scope);
        this.context = checkNotNull(context);
    }

    public Expr instantiate(final Type type, final Env env) {
        final InitialiserInstantiationVisitor visitor = new InitialiserInstantiationVisitor(env);
        final Expr expr = context.accept(visitor);
        checkArgument(expr.getType().equals(type));
        return expr;
    }

    private final class InitialiserInstantiationVisitor extends XtaDslBaseVisitor> {

        private final Env env;

        public InitialiserInstantiationVisitor(final Env env) {
            this.env = checkNotNull(env);
        }

        @Override
        public Expr visitSimpleInitialiser(final SimpleInitialiserContext ctx) {
            final XtaExpression expression = new XtaExpression(scope, ctx.fExpression);
            final Expr expr = expression.instantiate(env);
            return expr;
        }

        @Override
        public Expr visitCompoundInitialiser(final CompoundInitialiserContext ctx) {
            // TODO Auto-generated method stub
            throw new UnsupportedOperationException("TODO: auto-generated method stub");
        }

    }

}