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/*
 * Copyright (c) 2017, 2017, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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 General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */
package com.oracle.svm.hosted.option;

import java.util.ArrayList;
import java.util.List;

import org.graalvm.collections.EconomicMap;
import org.graalvm.collections.MapCursor;
import org.graalvm.compiler.options.OptionKey;

import com.oracle.svm.core.option.SubstrateOptionsParser;

public interface HostedOptionProvider {
    EconomicMap, Object> getHostedValues();

    EconomicMap, Object> getRuntimeValues();

    default List getAppliedArguments() {
        List result = new ArrayList<>();
        HostedOptionProviderHelper.addArguments(result, SubstrateOptionsParser.HOSTED_OPTION_PREFIX, getHostedValues());
        HostedOptionProviderHelper.addArguments(result, SubstrateOptionsParser.RUNTIME_OPTION_PREFIX, getRuntimeValues());
        return result;
    }
}

class HostedOptionProviderHelper {
    static void addArguments(List result, String prefix, EconomicMap, Object> values) {
        MapCursor, Object> cursor = values.getEntries();
        while (cursor.advance()) {
            result.add(prefix + cursor.getKey().getName() + "=" + cursor.getValue());
        }
    }
}