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    
017    package org.jetbrains.jet.lang.resolve.lazy.data;
018    
019    import com.intellij.psi.PsiElement;
020    import com.intellij.psi.PsiFile;
021    import org.jetbrains.annotations.NotNull;
022    import org.jetbrains.annotations.Nullable;
023    import org.jetbrains.jet.lang.psi.*;
024    import org.jetbrains.jet.lang.resolve.name.FqName;
025    
026    import java.util.Collections;
027    import java.util.List;
028    
029    public abstract class JetClassOrObjectInfo<E extends JetClassOrObject> implements JetClassLikeInfo {
030        protected final E element;
031    
032        protected JetClassOrObjectInfo(@NotNull E element) {
033            this.element = element;
034        }
035    
036        @Override
037        public JetClassOrObject getCorrespondingClassOrObject() {
038            return element;
039        }
040    
041        @Override
042        @Nullable
043        public JetModifierList getModifierList() {
044            return element.getModifierList();
045        }
046    
047        @Override
048        @NotNull
049        public List<JetDeclaration> getDeclarations() {
050            return element.getDeclarations();
051        }
052    
053        @NotNull
054        @Override
055        public List<JetClassObject> getClassObjects() {
056            JetClassBody body = element.getBody();
057            if (body == null) {
058                return Collections.emptyList();
059            }
060            return body.getAllClassObjects();
061        }
062    
063        @NotNull
064        @Override
065        public PsiElement getScopeAnchor() {
066            return element;
067        }
068    
069        @NotNull
070        @Override
071        public FqName getContainingPackageFqName() {
072            PsiFile file = element.getContainingFile();
073            if (file instanceof JetFile) {
074                JetFile jetFile = (JetFile) file;
075                return jetFile.getPackageFqName();
076            }
077            throw new IllegalArgumentException("Not in a JetFile: " + element);
078        }
079    
080        @Override
081        public String toString() {
082            return "info for " + element.getText();
083        }
084    }