| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package com.intellij.psi.impl.source.tree.java; |
| |
| import com.intellij.lang.ASTNode; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.psi.*; |
| import com.intellij.psi.impl.DebugUtil; |
| import com.intellij.psi.impl.source.SourceTreeToPsiMap; |
| import com.intellij.psi.impl.source.tree.*; |
| import com.intellij.psi.tree.ChildRoleBase; |
| import com.intellij.psi.tree.IElementType; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class PsiExpressionStatementImpl extends CompositePsiElement implements PsiExpressionStatement { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.psi.impl.source.tree.java.PsiExpressionStatementImpl"); |
| |
| public PsiExpressionStatementImpl() { |
| super(JavaElementType.EXPRESSION_STATEMENT); |
| } |
| |
| @Override |
| @NotNull |
| public PsiExpression getExpression() { |
| PsiExpression expression = (PsiExpression)SourceTreeToPsiMap.treeElementToPsi(findChildByType(ElementType.EXPRESSION_BIT_SET)); |
| if (expression != null) return expression; |
| LOG.error("Illegal PSI: \n" + DebugUtil.psiToString(getParent(), false)); |
| return null; |
| } |
| |
| @Override |
| public ASTNode findChildByRole(int role) { |
| LOG.assertTrue(ChildRole.isUnique(role)); |
| switch(role){ |
| default: |
| return null; |
| |
| case ChildRole.EXPRESSION: |
| return findChildByType(ElementType.EXPRESSION_BIT_SET); |
| |
| case ChildRole.CLOSING_SEMICOLON: |
| return TreeUtil.findChildBackward(this, JavaTokenType.SEMICOLON); |
| } |
| } |
| |
| @Override |
| public int getChildRole(ASTNode child) { |
| LOG.assertTrue(child.getTreeParent() == this); |
| IElementType i = child.getElementType(); |
| if (i == JavaTokenType.SEMICOLON) { |
| return ChildRole.CLOSING_SEMICOLON; |
| } |
| else { |
| if (ElementType.EXPRESSION_BIT_SET.contains(child.getElementType())) { |
| return ChildRole.EXPRESSION; |
| } |
| return ChildRoleBase.NONE; |
| } |
| } |
| |
| @Override |
| public void accept(@NotNull PsiElementVisitor visitor) { |
| if (visitor instanceof JavaElementVisitor) { |
| ((JavaElementVisitor)visitor).visitExpressionStatement(this); |
| } |
| else { |
| visitor.visitElement(this); |
| } |
| } |
| |
| public String toString() { |
| return "PsiExpressionStatement"; |
| } |
| |
| @Override |
| public void deleteChildInternal(@NotNull ASTNode child) { |
| if (getChildRole(child) == ChildRole.EXPRESSION) { |
| getTreeParent().deleteChildInternal(this); |
| } |
| else { |
| super.deleteChildInternal(child); |
| } |
| } |
| } |