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.JetKeywordToken;
026    import org.jetbrains.jet.lexer.JetToken;
027    
028    import java.util.ArrayList;
029    import java.util.Collections;
030    import java.util.List;
031    
032    public class JetModifierList extends JetElementImpl {
033        public JetModifierList(@NotNull ASTNode node) {
034            super(node);
035        }
036    
037        @Override
038        public <R, D> R accept(@NotNull JetVisitor<R, D> visitor, D data) {
039            return visitor.visitModifierList(this, data);
040        }
041    
042        @NotNull
043        public List<JetAnnotation> getAnnotations() {
044            return findChildrenByType(JetNodeTypes.ANNOTATION);
045        }
046    
047        @NotNull
048        public List<JetAnnotationEntry> getAnnotationEntries() {
049            List<JetAnnotationEntry> entries = findChildrenByType(JetNodeTypes.ANNOTATION_ENTRY);
050            List<JetAnnotationEntry> answer = entries.isEmpty() ? null : Lists.newArrayList(entries);
051            for (JetAnnotation annotation : getAnnotations()) {
052                if (answer == null) answer = new ArrayList<JetAnnotationEntry>();
053                answer.addAll(annotation.getEntries());
054            }
055            return answer != null ? answer : Collections.<JetAnnotationEntry>emptyList();
056        }
057    
058        @NotNull
059        public List<ASTNode> getModifierNodes() {
060            List<ASTNode> modifierNodes = new ArrayList<ASTNode>();
061    
062            ASTNode node = getNode().getFirstChildNode();
063            while (node != null) {
064                if (node.getElementType() instanceof JetKeywordToken) {
065                    modifierNodes.add(node);
066                }
067                node = node.getTreeNext();
068            }
069            return modifierNodes;
070        }
071    
072        public boolean hasModifier(JetToken token) {
073            return getModifierNode(token) != null;
074        }
075    
076        @Nullable
077        public PsiElement getModifier(JetToken token) {
078            return findChildByType(token);
079        }
080    
081        @Nullable
082        public ASTNode getModifierNode(JetToken token) {
083            ASTNode node = getNode().getFirstChildNode();
084            while (node != null) {
085                if (node.getElementType() == token) return node;
086                node = node.getTreeNext();
087            }
088            return null;
089        }
090    
091    
092    }