org.sosy_lab.java_smt.solvers.mathsat5.Mathsat5FormulaManager.java Source code

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Here is the source code for org.sosy_lab.java_smt.solvers.mathsat5.Mathsat5FormulaManager.java

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/*
 *  JavaSMT is an API wrapper for a collection of SMT solvers.
 *  This file is part of JavaSMT.
 *
 *  Copyright (C) 2007-2016  Dirk Beyer
 *  All rights reserved.
 *
 *  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 org.sosy_lab.java_smt.solvers.mathsat5;

import static org.sosy_lab.java_smt.solvers.mathsat5.Mathsat5NativeApi.msat_apply_substitution;
import static org.sosy_lab.java_smt.solvers.mathsat5.Mathsat5NativeApi.msat_from_smtlib2;
import static org.sosy_lab.java_smt.solvers.mathsat5.Mathsat5NativeApi.msat_to_smtlib2;

import com.google.common.base.Splitter;
import com.google.common.collect.Collections2;
import com.google.common.primitives.Longs;
import java.io.IOException;
import java.util.Collection;
import java.util.Map;
import java.util.Map.Entry;
import org.sosy_lab.common.Appender;
import org.sosy_lab.common.Appenders;
import org.sosy_lab.java_smt.api.BooleanFormula;
import org.sosy_lab.java_smt.api.Formula;
import org.sosy_lab.java_smt.api.FormulaType;
import org.sosy_lab.java_smt.basicimpl.AbstractFormulaManager;

final class Mathsat5FormulaManager extends AbstractFormulaManager<Long, Long, Long, Long> {

    @SuppressWarnings("checkstyle:parameternumber")
    Mathsat5FormulaManager(Mathsat5FormulaCreator creator, Mathsat5UFManager pFunctionManager,
            Mathsat5BooleanFormulaManager pBooleanManager, Mathsat5IntegerFormulaManager pIntegerManager,
            Mathsat5RationalFormulaManager pRationalManager, Mathsat5BitvectorFormulaManager pBitpreciseManager,
            Mathsat5FloatingPointFormulaManager pFloatingPointManager, Mathsat5ArrayFormulaManager pArrayManager) {
        super(creator, pFunctionManager, pBooleanManager, pIntegerManager, pRationalManager, pBitpreciseManager,
                pFloatingPointManager, null, pArrayManager);
    }

    static long getMsatTerm(Formula pT) {
        return ((Mathsat5Formula) pT).getTerm();
    }

    static long[] getMsatTerm(Collection<? extends Formula> pFormulas) {
        return Longs.toArray(Collections2.transform(pFormulas, Mathsat5FormulaManager::getMsatTerm));
    }

    @Override
    public BooleanFormula parse(String pS) throws IllegalArgumentException {
        long f = msat_from_smtlib2(getEnvironment(), pS);
        return getFormulaCreator().encapsulateBoolean(f);
    }

    @Override
    public Appender dumpFormula(final Long f) {
        assert getFormulaCreator()
                .getFormulaType(f) == FormulaType.BooleanType : "Only BooleanFormulas may be dumped";

        // Lazy invocation of msat_to_smtlib2 wrapped in an Appender.
        return new Appenders.AbstractAppender() {
            @Override
            public void appendTo(Appendable out) throws IOException {
                String msatString = msat_to_smtlib2(getEnvironment(), f);
                // Adjust line breaks: assert needs to be on last line, so we remove all following breaks.
                boolean needsLinebreak = true;
                for (String part : Splitter.on('\n').split(msatString)) {
                    out.append(part);
                    if (needsLinebreak && part.startsWith("(assert")) {
                        needsLinebreak = false;
                    }
                    if (needsLinebreak) {
                        out.append('\n');
                    }
                }
            }
        };
    }

    @Override
    public <T extends Formula> T substitute(final T f,
            final Map<? extends Formula, ? extends Formula> fromToMapping) {
        long[] changeFrom = new long[fromToMapping.size()];
        long[] changeTo = new long[fromToMapping.size()];
        int idx = 0;
        for (Entry<? extends Formula, ? extends Formula> e : fromToMapping.entrySet()) {
            changeFrom[idx] = extractInfo(e.getKey());
            changeTo[idx] = extractInfo(e.getValue());
            idx++;
        }
        FormulaType<T> type = getFormulaType(f);
        return getFormulaCreator().encapsulate(type, msat_apply_substitution(getFormulaCreator().getEnv(),
                extractInfo(f), fromToMapping.size(), changeFrom, changeTo));
    }
}