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.intellij.lang.ASTNode;
020    import com.intellij.psi.PsiElement;
021    import org.jetbrains.annotations.NotNull;
022    import org.jetbrains.annotations.Nullable;
023    import org.jetbrains.kotlin.JetNodeTypes;
024    import org.jetbrains.kotlin.lexer.JetTokens;
025    
026    public class JetIfExpression extends JetExpressionImpl {
027        public JetIfExpression(@NotNull ASTNode node) {
028            super(node);
029        }
030    
031        @Override
032        public <R, D> R accept(@NotNull JetVisitor<R, D> visitor, D data) {
033            return visitor.visitIfExpression(this, data);
034        }
035    
036        @Nullable @IfNotParsed
037        public JetExpression getCondition() {
038            return findExpressionUnder(JetNodeTypes.CONDITION);
039        }
040    
041        @Nullable @IfNotParsed
042        public PsiElement getLeftParenthesis() {
043            return findChildByType(JetTokens.LPAR);
044        }
045    
046        @Nullable @IfNotParsed
047        public PsiElement getRightParenthesis() {
048            return findChildByType(JetTokens.RPAR);
049        }
050    
051        @Nullable
052        public JetExpression getThen() {
053            return findExpressionUnder(JetNodeTypes.THEN);
054        }
055    
056        @Nullable
057        public JetExpression getElse() {
058            return findExpressionUnder(JetNodeTypes.ELSE);
059        }
060    
061        @Nullable
062        public PsiElement getElseKeyword() {
063            return findChildByType(JetTokens.ELSE_KEYWORD);
064        }
065    
066        @NotNull
067        public PsiElement getIfKeyword() {
068            return findChildByType(JetTokens.IF_KEYWORD);
069        }
070    }