/*

 * Copyright (c) 2016, 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 jdk.nashorn.api.tree;

import java.util.List;

import java.util.stream.Collectors;

import jdk.nashorn.internal.ir.FunctionNode;

import jdk.nashorn.internal.ir.IdentNode;

import jdk.nashorn.internal.ir.Module;

import static jdk.nashorn.api.tree.ModuleTreeImpl.identOrNull;

final class ImportEntryTreeImpl extends TreeImpl implements ImportEntryTree {

    private final long startPos, endPos;

    private final IdentifierTree moduleRequest;

    private final IdentifierTree importName;

    private final IdentifierTree localName;

    private ImportEntryTreeImpl(final long startPos, final long endPos,

            IdentifierTree moduleRequest,

            IdentifierTree importName,

            IdentifierTree localName) {

        super(null); // No underlying Node!

        this.startPos = startPos;

        this.endPos = endPos;

        this.moduleRequest = moduleRequest;

        this.importName = importName;

        this.localName = localName;

    }

    private static ImportEntryTreeImpl createImportEntry(Module.ImportEntry entry) {

        return new ImportEntryTreeImpl(entry.getStartPosition(),

                entry.getEndPosition(),

                identOrNull(entry.getModuleRequest()),

                identOrNull(entry.getImportName()),

                identOrNull(entry.getLocalName()));

    }

    static List<ImportEntryTreeImpl> createImportList(List<Module.ImportEntry> importList) {

        return importList.stream().

            map(ImportEntryTreeImpl::createImportEntry).

            collect(Collectors.toList());

    }

    @Override

    public Kind getKind() {

        return Tree.Kind.IMPORT_ENTRY;

    }

    @Override

    public <R,D> R accept(final TreeVisitor<R,D> visitor, final D data) {

        return visitor.visitImportEntry(this, data);

    }

    @Override

    public long getStartPosition() {

        return startPos;

    }

    @Override

    public long getEndPosition() {

        return endPos;

    }

    @Override

    public IdentifierTree getModuleRequest() {

        return moduleRequest;

    }

    @Override

    public IdentifierTree getImportName() {

        return importName;

    }

    @Override

    public IdentifierTree getLocalName() {

        return localName;

    }

}