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/*
* Copyright 2003-2010 Dave Griffith, Bas Leijdekkers
*
* 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.siyeh.ig.fixes;
import com.intellij.codeInspection.ProblemDescriptor;
import com.intellij.openapi.project.Project;
import com.intellij.psi.*;
import com.intellij.util.IncorrectOperationException;
import com.siyeh.InspectionGadgetsBundle;
import com.siyeh.ig.InspectionGadgetsFix;
import org.jetbrains.annotations.NotNull;
public class NormalizeDeclarationFix extends InspectionGadgetsFix {
@Override
@NotNull
public String getFamilyName() {
return getName();
}
@Override
@NotNull
public String getName() {
return InspectionGadgetsBundle.message("normalize.declaration.quickfix");
}
@Override
public void doFix(Project project, ProblemDescriptor descriptor)
throws IncorrectOperationException {
final PsiElement variableNameElement = descriptor.getPsiElement();
final PsiVariable parent =
(PsiVariable)variableNameElement.getParent();
if (parent == null) {
return;
}
if (parent instanceof PsiField) {
parent.normalizeDeclaration();
return;
}
final PsiElement grandParent = parent.getParent();
if (!(grandParent instanceof PsiDeclarationStatement)) {
return;
}
final PsiElement greatGrandParent = grandParent.getParent();
if (greatGrandParent instanceof PsiForStatement) {
final PsiDeclarationStatement declarationStatement =
(PsiDeclarationStatement)grandParent;
splitMultipleDeclarationInForStatementInitialization(
declarationStatement);
return;
}
parent.normalizeDeclaration();
}
private static void splitMultipleDeclarationInForStatementInitialization(
PsiDeclarationStatement declarationStatement) {
final PsiElement forStatement = declarationStatement.getParent();
final PsiElement[] declaredElements =
declarationStatement.getDeclaredElements();
final Project project = forStatement.getProject();
final PsiElementFactory factory =
JavaPsiFacade.getElementFactory(project);
final PsiElement greatGreatGrandParent = forStatement.getParent();
final PsiBlockStatement blockStatement;
final PsiCodeBlock codeBlock;
if (!(greatGreatGrandParent instanceof PsiCodeBlock)) {
blockStatement = (PsiBlockStatement)
factory.createStatementFromText("{}", forStatement);
codeBlock = blockStatement.getCodeBlock();
}
else {
blockStatement = null;
codeBlock = null;
}
for (int i = 1; i < declaredElements.length; i++) {
final PsiElement declaredElement = declaredElements[i];
if (!(declaredElement instanceof PsiVariable)) {
continue;
}
final PsiVariable variable = (PsiVariable)declaredElement;
final PsiType type = variable.getType();
final String typeText = type.getCanonicalText();
final StringBuilder newStatementText =
new StringBuilder(typeText);
newStatementText.append(' ');
newStatementText.append(variable.getName());
final PsiExpression initializer = variable.getInitializer();
if (initializer != null) {
newStatementText.append('=');
newStatementText.append(initializer.getText());
}
newStatementText.append(';');
final PsiStatement newStatement =
factory.createStatementFromText(
newStatementText.toString(), forStatement);
if (codeBlock == null) {
greatGreatGrandParent.addBefore(newStatement, forStatement);
}
else {
codeBlock.add(newStatement);
}
}
for (int i = 1; i < declaredElements.length; i++) {
final PsiElement declaredElement = declaredElements[i];
if (!(declaredElement instanceof PsiVariable)) {
continue;
}
declaredElement.delete();
}
if (codeBlock != null) {
codeBlock.add(forStatement);
forStatement.replace(blockStatement);
}
}
}
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