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