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.psi;
018    
019    import com.google.common.collect.Lists;
020    import com.intellij.lang.ASTNode;
021    import com.intellij.psi.PsiElement;
022    import org.jetbrains.annotations.NotNull;
023    import org.jetbrains.annotations.Nullable;
024    import org.jetbrains.jet.JetNodeTypes;
025    import org.jetbrains.jet.lexer.JetToken;
026    
027    import java.util.ArrayList;
028    import java.util.Collections;
029    import java.util.List;
030    
031    public class JetModifierList extends JetElementImpl {
032        public JetModifierList(@NotNull ASTNode node) {
033            super(node);
034        }
035    
036        @Override
037        public void accept(@NotNull JetVisitorVoid visitor) {
038            visitor.visitModifierList(this);
039        }
040    
041        @Override
042        public <R, D> R accept(@NotNull JetVisitor<R, D> visitor, D data) {
043            return visitor.visitModifierList(this, data);
044        }
045    
046        @NotNull
047        public List<JetAnnotation> getAnnotations() {
048            return findChildrenByType(JetNodeTypes.ANNOTATION);
049        }
050    
051        @NotNull
052        public List<JetAnnotationEntry> getAnnotationEntries() {
053            List<JetAnnotationEntry> entries = findChildrenByType(JetNodeTypes.ANNOTATION_ENTRY);
054            List<JetAnnotationEntry> answer = entries.isEmpty() ? null : Lists.newArrayList(entries);
055            for (JetAnnotation annotation : getAnnotations()) {
056                if (answer == null) answer = new ArrayList<JetAnnotationEntry>();
057                answer.addAll(annotation.getEntries());
058            }
059            return answer != null ? answer : Collections.<JetAnnotationEntry>emptyList();
060        }
061    
062        public boolean hasModifier(JetToken token) {
063            return getModifierNode(token) != null;
064        }
065    
066        @Nullable
067        public PsiElement getModifier(JetToken token) {
068            return findChildByType(token);
069        }
070    
071        @Nullable
072        public ASTNode getModifierNode(JetToken token) {
073            ASTNode node = getNode().getFirstChildNode();
074            while (node != null) {
075                if (node.getElementType() == token) return node;
076                node = node.getTreeNext();
077            }
078            return null;
079        }
080    
081    
082    }