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.intellij.lang.ASTNode;
020    import com.intellij.openapi.util.TextRange;
021    import com.intellij.psi.PsiElement;
022    import com.intellij.psi.PsiModifiableCodeBlock;
023    import org.jetbrains.annotations.NotNull;
024    import org.jetbrains.annotations.Nullable;
025    import org.jetbrains.jet.lexer.JetTokens;
026    
027    import java.util.Arrays;
028    import java.util.List;
029    
030    public class JetBlockExpression extends JetExpressionImpl implements JetStatementExpression, PsiModifiableCodeBlock {
031        public JetBlockExpression(@NotNull ASTNode node) {
032            super(node);
033        }
034    
035        @Override
036        public boolean shouldChangeModificationCount(PsiElement place) {
037            return JetModifiableBlockHelper.shouldChangeModificationCount(place);
038        }
039    
040        @Override
041        public <R, D> R accept(@NotNull JetVisitor<R, D> visitor, D data) {
042            return visitor.visitBlockExpression(this, data);
043        }
044    
045        @NotNull
046        public List<JetElement> getStatements() {
047            return Arrays.asList(findChildrenByClass(JetElement.class));
048        }
049    
050        @Nullable
051        public TextRange getLastBracketRange() {
052            PsiElement rBrace = getRBrace();
053            return rBrace != null ? rBrace.getTextRange() : null;
054        }
055    
056        @Nullable
057        public PsiElement getRBrace() {
058            return findChildByType(JetTokens.RBRACE);
059        }
060    
061        @Nullable
062        public PsiElement getLBrace() {
063            return findChildByType(JetTokens.LBRACE);
064        }
065    }