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Xta Analysis subproject in the Theta model checking framework

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/*
 *  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.analysis.zone;

import java.util.Collection;

import com.google.common.collect.ImmutableList;

import hu.bme.mit.theta.analysis.TransFunc;
import hu.bme.mit.theta.analysis.zone.ZonePrec;
import hu.bme.mit.theta.analysis.zone.ZoneState;
import hu.bme.mit.theta.xta.analysis.XtaAction;

final class XtaZoneTransFunc implements TransFunc {

    private final static XtaZoneTransFunc INSTANCE = new XtaZoneTransFunc();

    private XtaZoneTransFunc() {
    }

    static XtaZoneTransFunc getInstance() {
        return INSTANCE;
    }

    @Override
    public Collection getSuccStates(final ZoneState state, final XtaAction action,
                                               final ZonePrec prec) {
        final ZoneState succState = XtaZoneUtils.post(state, action, prec);
        return ImmutableList.of(succState);
    }

}