/*
 * SonarQube Java
 * Copyright (C) 2012-2016 SonarSource SA
 * mailto:contact AT sonarsource DOT com
 *
 * This program 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.
 *
 * This program 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 this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.java.ast.parser;

import com.google.common.collect.ImmutableList;
import com.google.common.collect.Iterables;
import org.sonar.java.model.InternalSyntaxToken;
import org.sonar.plugins.java.api.tree.SyntaxToken;
import org.sonar.plugins.java.api.tree.Tree;
import org.sonar.plugins.java.api.tree.TreeVisitor;
import org.sonar.plugins.java.api.tree.TypeParameterTree;
import org.sonar.plugins.java.api.tree.TypeParameters;

import javax.annotation.Nullable;
import java.util.Collections;
import java.util.List;

public class TypeParameterListTreeImpl extends ListTreeImpl<TypeParameterTree> implements TypeParameters {

  @Nullable
  private final InternalSyntaxToken openBracketToken;
  @Nullable
  private final InternalSyntaxToken closeBracketToken;

  public TypeParameterListTreeImpl(InternalSyntaxToken openBracketToken, List<TypeParameterTree> typeParameters,
    List<SyntaxToken> separators, InternalSyntaxToken closeBracketToken) {
    super(JavaLexer.TYPE_PARAMETERS, typeParameters, separators);

    this.openBracketToken = openBracketToken;
    this.closeBracketToken = closeBracketToken;
  }

  public TypeParameterListTreeImpl() {
    super(JavaLexer.TYPE_PARAMETERS, ImmutableList.<TypeParameterTree>of(), ImmutableList.<SyntaxToken>of());
    this.openBracketToken = null;
    this.closeBracketToken = null;
  }

  @Nullable
  @Override
  public SyntaxToken openBracketToken() {
    return openBracketToken;
  }

  @Nullable
  @Override
  public SyntaxToken closeBracketToken() {
    return closeBracketToken;
  }

  @Override
  public void accept(TreeVisitor visitor) {
    visitor.visitTypeParameters(this);
  }

  @Override
  public Iterable<Tree> children() {
    return Iterables.concat(
      Collections.singletonList(openBracketToken),
      super.children(),
      Collections.singletonList(closeBracketToken));
  }

  @Override
  public Kind kind() {
    return Kind.TYPE_PARAMETERS;
  }

}