001    /*
002     * Copyright 2010-2015 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.kotlin.psi;
018    
019    import com.google.common.collect.Lists;
020    import com.intellij.lang.ASTNode;
021    import com.intellij.openapi.util.TextRange;
022    import com.intellij.psi.PsiElement;
023    import com.intellij.psi.util.PsiTreeUtil;
024    import org.jetbrains.annotations.NotNull;
025    import org.jetbrains.annotations.Nullable;
026    import org.jetbrains.kotlin.JetNodeTypes;
027    import org.jetbrains.kotlin.lexer.JetTokens;
028    
029    import java.util.Collections;
030    import java.util.List;
031    
032    public class JetArrayAccessExpression extends JetExpressionImpl implements JetReferenceExpression {
033        public JetArrayAccessExpression(@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.visitArrayAccessExpression(this, data);
040        }
041    
042        @Nullable @IfNotParsed
043        public JetExpression getArrayExpression() {
044            return findChildByClass(JetExpression.class);
045        }
046    
047        @NotNull
048        public List<JetExpression> getIndexExpressions() {
049            return PsiTreeUtil.getChildrenOfTypeAsList(getIndicesNode(), JetExpression.class);
050        }
051    
052        @NotNull
053        public JetContainerNode getIndicesNode() {
054            JetContainerNode indicesNode = findChildByType(JetNodeTypes.INDICES);
055            assert indicesNode != null : "Can't be null because of parser";
056            return indicesNode;
057        }
058    
059        @NotNull
060        public List<TextRange> getBracketRanges() {
061            PsiElement lBracket = getLeftBracket();
062            PsiElement rBracket = getRightBracket();
063            if (lBracket == null || rBracket == null) {
064                return Collections.emptyList();
065            }
066            return Lists.newArrayList(lBracket.getTextRange(), rBracket.getTextRange());
067        }
068    
069        @Nullable
070        public PsiElement getLeftBracket() {
071            return getIndicesNode().findChildByType(JetTokens.LBRACKET);
072        }
073    
074        @Nullable
075        public PsiElement getRightBracket() {
076            return getIndicesNode().findChildByType(JetTokens.RBRACKET);
077        }
078    }