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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;

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

import java.util.Collection;
import java.util.List;

import hu.bme.mit.theta.analysis.InitFunc;
import hu.bme.mit.theta.analysis.Prec;
import hu.bme.mit.theta.analysis.State;
import hu.bme.mit.theta.xta.XtaSystem;
import hu.bme.mit.theta.xta.XtaProcess.Loc;

final class XtaInitFunc implements InitFunc, P> {

    private final XtaSystem system;
    private final InitFunc initFunc;

    private XtaInitFunc(final XtaSystem system, final InitFunc initFunc) {
        this.system = checkNotNull(system);
        this.initFunc = checkNotNull(initFunc);
    }

    public static  XtaInitFunc create(final XtaSystem system,
                                                                             final InitFunc initFunc) {
        return new XtaInitFunc<>(system, initFunc);
    }

    @Override
    public Collection> getInitStates(final P prec) {
        checkNotNull(prec);
        final List initLocs = system.getInitLocs();
        final Collection initStates = initFunc.getInitStates(prec);
        return XtaState.collectionOf(initLocs, initStates);
    }

}