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An easy-to-learn/use static analysis framework for Java
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/*
 * Tai-e: A Static Analysis Framework for Java
 *
 * Copyright (C) 2022 Tian Tan 
 * Copyright (C) 2022 Yue Li 
 *
 * This file is part of Tai-e.
 *
 * Tai-e is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation, either version 3
 * of the License, or (at your option) any later version.
 *
 * Tai-e is distributed in the hope that it will be useful,but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
 * Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with Tai-e. If not, see .
 */

package pascal.taie.frontend.soot;

import pascal.taie.language.classes.Modifier;

import java.util.Collections;
import java.util.EnumSet;
import java.util.Set;
import java.util.concurrent.ConcurrentMap;

import static pascal.taie.util.collection.Maps.newConcurrentMap;

class Modifiers {

    private static final ConcurrentMap> modMap
            = newConcurrentMap();

    private Modifiers() {
    }

    static Set convert(int modifiers) {
        return modMap.computeIfAbsent(modifiers, m -> {
            Set result = EnumSet.noneOf(Modifier.class);
            if (soot.Modifier.isAbstract(m)) {
                result.add(Modifier.ABSTRACT);
            }
            if (soot.Modifier.isFinal(m)) {
                result.add(Modifier.FINAL);
            }
            if (soot.Modifier.isInterface(m)) {
                result.add(Modifier.INTERFACE);
            }
            if (soot.Modifier.isNative(m)) {
                result.add(Modifier.NATIVE);
            }
            if (soot.Modifier.isPrivate(m)) {
                result.add(Modifier.PRIVATE);
            }
            if (soot.Modifier.isProtected(m)) {
                result.add(Modifier.PROTECTED);
            }
            if (soot.Modifier.isPublic(m)) {
                result.add(Modifier.PUBLIC);
            }
            if (soot.Modifier.isStatic(m)) {
                result.add(Modifier.STATIC);
            }
            if (soot.Modifier.isSynchronized(m)) {
                result.add(Modifier.SYNCHRONIZED);
            }
            if (soot.Modifier.isTransient(m)) {
                result.add(Modifier.TRANSIENT);
            }
            if (soot.Modifier.isVolatile(m)) {
                result.add(Modifier.VOLATILE);
            }
            if (soot.Modifier.isStrictFP(m)) {
                result.add(Modifier.STRICTFP);
            }
            if (soot.Modifier.isAnnotation(m)) {
                result.add(Modifier.ANNOTATION);
            }
            if (soot.Modifier.isEnum(m)) {
                result.add(Modifier.ENUM);
            }
            if (soot.Modifier.isSynthetic(m)) {
                result.add(Modifier.SYNTHETIC);
            }
            return Collections.unmodifiableSet(result);
        });
    }
}