/*
 * Copyright (c) 2012, 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.
 *
 * 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.truffle.codegen.processor.ext;

import java.util.*;

import javax.annotation.processing.*;

import com.oracle.truffle.codegen.processor.api.*;
import com.oracle.truffle.codegen.processor.api.element.*;

public class ExtensionContextImpl implements ExtensionContext {

    private final ProcessingEnvironment env;
    private final RoundEnvironment round;
    private final WritableElementFactory factory;

    private final List<WritableElement> elements = new ArrayList<>();

    public ExtensionContextImpl(ProcessingEnvironment env, RoundEnvironment round, WritableElementFactory factory) {
        this.env = env;
        this.round = round;
        this.factory = factory;
    }

    List<WritableElement> returnElements() {
        List<WritableElement> returnElements = new ArrayList<>(this.elements);
        this.elements.clear();
        return returnElements;
    }

    @Override
    public ProcessingEnvironment getProcessingEnvironment() {
        return env;
    }

    @Override
    public RoundEnvironment getRoundEnvironment() {
        return round;
    }

    @Override
    public WritableElementFactory getElementFactory() {
        return factory;
    }

    @Override
    public void addGeneratedElement(WritableElement element) {
        elements.add(element);
    }

    @Override
    public void removeGeneratedElement(WritableElement element) {
        elements.remove(element);
    }

}