001/*
002 * Copyright 2010-2013 JetBrains s.r.o.
003 *
004 * Licensed under the Apache License, Version 2.0 (the "License");
005 * you may not use this file except in compliance with the License.
006 * You may obtain a copy of the License at
007 *
008 * http://www.apache.org/licenses/LICENSE-2.0
009 *
010 * Unless required by applicable law or agreed to in writing, software
011 * distributed under the License is distributed on an "AS IS" BASIS,
012 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
013 * See the License for the specific language governing permissions and
014 * limitations under the License.
015 */
016
017package org.jetbrains.jet.lang.psi;
018
019import com.intellij.lang.ASTNode;
020import org.jetbrains.annotations.NotNull;
021import org.jetbrains.annotations.Nullable;
022import org.jetbrains.jet.JetNodeTypes;
023
024public class JetDelegationSpecifier extends JetElementImpl {
025    public JetDelegationSpecifier(@NotNull ASTNode node) {
026        super(node);
027    }
028
029    @Override
030    public void accept(@NotNull JetVisitorVoid visitor) {
031        visitor.visitDelegationSpecifier(this);
032    }
033
034    @Override
035    public <R, D> R accept(@NotNull JetVisitor<R, D> visitor, D data) {
036        return visitor.visitDelegationSpecifier(this, data);
037    }
038
039    @Nullable
040    public JetTypeReference getTypeReference() {
041        return (JetTypeReference) findChildByType(JetNodeTypes.TYPE_REFERENCE);
042    }
043
044    @Nullable
045    public JetUserType getTypeAsUserType() {
046        JetTypeReference reference = getTypeReference();
047        if (reference != null) {
048            JetTypeElement element = reference.getTypeElement();
049            if (element instanceof JetUserType) {
050                return ((JetUserType) element);
051            }
052        }
053        return null;
054    }
055}