| /* |
| * 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.source.Constants; |
| import com.intellij.psi.impl.source.PsiLabelReference; |
| import com.intellij.psi.impl.source.SourceTreeToPsiMap; |
| import com.intellij.psi.impl.source.tree.ChildRole; |
| import com.intellij.psi.impl.source.tree.CompositeElement; |
| import com.intellij.psi.impl.source.tree.CompositePsiElement; |
| import com.intellij.psi.impl.source.tree.TreeUtil; |
| import com.intellij.psi.tree.IElementType; |
| import com.intellij.psi.tree.ChildRoleBase; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class PsiBreakStatementImpl extends CompositePsiElement implements PsiBreakStatement, Constants { |
| private static final Logger LOG = Logger.getInstance("#com.intellij.psi.impl.source.tree.java.PsiBreakStatementImpl"); |
| |
| public PsiBreakStatementImpl() { |
| super(BREAK_STATEMENT); |
| } |
| |
| @Override |
| public PsiIdentifier getLabelIdentifier() { |
| return (PsiIdentifier)findChildByRoleAsPsiElement(ChildRole.LABEL); |
| } |
| |
| @Override |
| public PsiStatement findExitedStatement() { |
| PsiIdentifier label = getLabelIdentifier(); |
| if (label == null){ |
| for(ASTNode parent = getTreeParent(); parent != null; parent = parent.getTreeParent()){ |
| IElementType i = parent.getElementType(); |
| if (i == FOR_STATEMENT || i == WHILE_STATEMENT || i == DO_WHILE_STATEMENT || i == SWITCH_STATEMENT || i == FOREACH_STATEMENT) { |
| return (PsiStatement)SourceTreeToPsiMap.treeElementToPsi(parent); |
| } |
| else if (i == METHOD || i == CLASS_INITIALIZER) { |
| return null; // do not pass through anonymous/local class |
| } |
| } |
| } |
| else{ |
| String labelName = label.getText(); |
| for(CompositeElement parent = getTreeParent(); parent != null; parent = parent.getTreeParent()){ |
| if (parent.getElementType() == LABELED_STATEMENT){ |
| ASTNode statementLabel = parent.findChildByRole(ChildRole.LABEL_NAME); |
| if (statementLabel.getText().equals(labelName)){ |
| return ((PsiLabeledStatement)SourceTreeToPsiMap.treeElementToPsi(parent)).getStatement(); |
| } |
| } |
| |
| if (parent.getElementType() == METHOD || parent.getElementType() == CLASS_INITIALIZER || parent.getElementType() == LAMBDA_EXPRESSION) return null; // do not pass through anonymous/local class |
| } |
| } |
| return null; |
| } |
| |
| @Override |
| public ASTNode findChildByRole(int role) { |
| LOG.assertTrue(ChildRole.isUnique(role)); |
| switch(role){ |
| default: |
| return null; |
| |
| case ChildRole.BREAK_KEYWORD: |
| return findChildByType(BREAK_KEYWORD); |
| |
| case ChildRole.LABEL: |
| return findChildByType(IDENTIFIER); |
| |
| case ChildRole.CLOSING_SEMICOLON: |
| return TreeUtil.findChildBackward(this, SEMICOLON); |
| } |
| } |
| |
| @Override |
| public int getChildRole(ASTNode child) { |
| LOG.assertTrue(child.getTreeParent() == this); |
| IElementType i = child.getElementType(); |
| if (i == BREAK_KEYWORD) { |
| return ChildRole.BREAK_KEYWORD; |
| } |
| else if (i == IDENTIFIER) { |
| return ChildRole.LABEL; |
| } |
| else if (i == SEMICOLON) { |
| return ChildRole.CLOSING_SEMICOLON; |
| } |
| else { |
| return ChildRoleBase.NONE; |
| } |
| } |
| |
| @Override |
| public void accept(@NotNull PsiElementVisitor visitor) { |
| if (visitor instanceof JavaElementVisitor) { |
| ((JavaElementVisitor)visitor).visitBreakStatement(this); |
| } |
| else { |
| visitor.visitElement(this); |
| } |
| } |
| |
| @Override |
| public PsiReference getReference() { |
| final PsiReference[] references = getReferences(); |
| if (references != null && references.length > 0) |
| return references[0]; |
| return null; |
| } |
| |
| @Override |
| @NotNull |
| public PsiReference[] getReferences() { |
| if (getLabelIdentifier() == null) |
| return PsiReference.EMPTY_ARRAY; |
| return new PsiReference[]{new PsiLabelReference(this, getLabelIdentifier())}; |
| } |
| |
| public String toString() { |
| return "PsiBreakStatement"; |
| } |
| } |