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 void accept(@NotNull JetVisitorVoid visitor) {
039            visitor.visitModifierList(this);
040        }
041    
042        @Override
043        public <R, D> R accept(@NotNull JetVisitor<R, D> visitor, D data) {
044            return visitor.visitModifierList(this, data);
045        }
046    
047        @NotNull
048        public List<JetAnnotation> getAnnotations() {
049            return findChildrenByType(JetNodeTypes.ANNOTATION);
050        }
051    
052        @NotNull
053        public List<JetAnnotationEntry> getAnnotationEntries() {
054            List<JetAnnotationEntry> entries = findChildrenByType(JetNodeTypes.ANNOTATION_ENTRY);
055            List<JetAnnotationEntry> answer = entries.isEmpty() ? null : Lists.newArrayList(entries);
056            for (JetAnnotation annotation : getAnnotations()) {
057                if (answer == null) answer = new ArrayList<JetAnnotationEntry>();
058                answer.addAll(annotation.getEntries());
059            }
060            return answer != null ? answer : Collections.<JetAnnotationEntry>emptyList();
061        }
062    
063        @NotNull
064        public List<ASTNode> getModifierNodes() {
065            List<ASTNode> modifierNodes = new ArrayList<ASTNode>();
066    
067            ASTNode node = getNode().getFirstChildNode();
068            while (node != null) {
069                if (node.getElementType() instanceof JetKeywordToken) {
070                    modifierNodes.add(node);
071                }
072                node = node.getTreeNext();
073            }
074            return modifierNodes;
075        }
076    
077        public boolean hasModifier(JetToken token) {
078            return getModifierNode(token) != null;
079        }
080    
081        @Nullable
082        public PsiElement getModifier(JetToken token) {
083            return findChildByType(token);
084        }
085    
086        @Nullable
087        public ASTNode getModifierNode(JetToken token) {
088            ASTNode node = getNode().getFirstChildNode();
089            while (node != null) {
090                if (node.getElementType() == token) return node;
091                node = node.getTreeNext();
092            }
093            return null;
094        }
095    
096    
097    }